HISTORICAL RESEARCH REPORT - IOM | Institute of ... · HISTORICAL RESEARCH REPORT ... Sampler, Type 113A. Concentrations, ... 290 605 35 Yard 54 055 66' 184 51 195 •59 310 54 000

HISTORICAL RESEARCH REPORTResearch Report TM/72/19

1972

Pneumoconiosis Field Research: Environmental Conditions at Vane Tempest Colliery, 1969 Bradley A

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Pneumoconiosis Field Research: Environmental Conditions at Vane Tempest Colliery, 1969

Bradley A This document is a facsimile of an original copy of the report, which has been scanned as an image, with searchable text. Because the quality of this scanned image is determined by the clarity of the original text pages, there may be variations in the overall appearance of pages within the report. The scanning of this and the other historical reports in the Research Reports series was funded by a grant from the Wellcome Trust. The IOM’s research reports are freely available for download as PDF files from our web site: http://www.iom-world.org/research/libraryentry.php

HISTORICAL RESEARCH REPORTResearch Report TM/72/19

1972

ii Research Report TM/72/19

NOT FOR PUBLICATION REPORT NO. TM/72/19

I N S T I T U T E O F O C C U P A T I O N A L M E D I C I N E

PNEUMOCONIOSIS FIELD RESEARCH

ENVIRONMENTAL CONDITIONS AT VANE TEMPEST COLLIERY, 1969

byA. Bradley

Environmental Branch,Institute of Occupational Medicine,Roxburgh Place,Edinburgh, EH8 9SU.(Tel. 031-667 5131) July, 1972

REPORT NO. TM/72/19




by

A. Bradley

CONTENTS

SUMMARY

1. INTRODUCTION

2. VANE TEMPEST COLLIERY

2.1 Seams Worked and Output

2.2 Methods of Working

2.3 Ventilation and Temperature

2.4 Dust Suppression

2.5 Manpower and Occupational Groups

3. SAMPLING AND EVALUATION

3.1 Sampling Programme

3.2 Method of Sampling

3.3 Evaluation

4. RESULTS AND DISCUSSION

4.1 Fa c eworkers

4.2 Development, Elsewhere Underground and Surface

4.3 Relationship between Control Point and Face Concentrations

4.4 Relationship between Dust and Face Machines

5. OBSERVATIONS AND CONCLUSIONS

REFERENCES

TABLES 4-13

REPORT NO. TM/72/19




by

A. Bradley

SUMMARY

This report tabulates by face and site, in a series of charts, the respirabledust, ash and quartz concentrations for the period January, 1969 - March, 1970at Vane Tempest Colliery. It is the second report of the series in whichdust measurements were made by the M.R.E. Gravimetric sampler only.

Information on methods of working, outputs and manpower is also given.

The colliery had a coalface mean respirable dust concentration of 4.3 mg/m .The mean ash content was,29 per cent and the mean quartz 3»3 per cent ;(concentration 0.14 mg/m ).



t>y

A. Bradley'

1. INTRODUCTION

This report describes environmental measurements made at Vane TempestColliery by the Pneumoconiosis Field Research (P.F.R.) during the periodfrom January, 1969 "to March, 1970.

The dust measurements, as previously, were made by the M.R.E. Gravimetric,Sampler, Type 113A. Concentrations, in particular those from the coalfa'ces,are presented in a series of charts with values for different sites andoccupations. Charts also give details of mining conditions and activities.

This report gives general information about the colliery and continues toexamine the relationship between dust concentrations at control sampling,points in return roadways and on faces.

•; '2. VANE TEMPEST COLLIERY

2. 1 Seamq Worked and Output

The seams worked at Vane Tempest were, in descending order, High Main(02:091)*, Yard (02:162), Maudlin (02:200) and Low Main (02:221), Detailsof the seam characteristics are given in Tables 4 - 12.

A summary of the seam outputs for 1969 and the first quarter of 1970 isgiven in Table 1.

*National Seam Qorrelation Code.

2.

TABLE 1

Colliery Output (tons)

~"*— « ^ SeamPeri od ^ ^

19691st quarter2nd quarter3rd quarter4th quarter

19701 st quarter

TOTAL$ Seam Output

High Main

62 78548 26463 54262 891

53 123

290 60535

Yard

54 05566' 18451 195•59 310

54 000

284 74434

i

Maudlin I Low MainI

55 46454 69641 25242 595

t

27 927

221. 93426

.

35 496

35 4964

Development

2 5662 3642 3302 037

1 397

10 6941

Total

,

174 870171 508158 319166 833

171 943

843 473100

1

The colliery output remained reasonablysteady throughout the period.

2.2 Methods of Working (Tables 4-12)

All production faces at the colliery during the period were mechanised, :longwall, advancing, single units varying in length from 110m to 250m. Thecoal-getting machines used were Uni- and Bi-directional Shearers, Trepanner:

and Ploughs. . ,

Of nine faces open for coal production during the period, seven worked a24-hour cycle with four production shifts but on .the remaining two faces,there were only two production shifts in 24 hours.

Ripping and stablework were normally carried out on all shifts.

2.3 Ventilation and Temperature

The average air quantities, wet and dry bulb temperatures, and humiditiesare given on the face charts (Tables 4-12).

2.4 Dust Suppression

Dust suppression was applied to all faces (Tables 4-12) and all major dustproducing activities elsewhere underground. The main methods of dustsuppression adopted were:-

¥et cuttingHand sprayingWet boring with hollow shafts on Holman drillsCowls on face machines and on some outbye transfer pointsSprays on all conveyor transfer points and loading pointsShots were stemmed with water or gel ampoules

About twenty .-per cent of faceworkers wore Martindale Type 'Tf or SiebeGorman dust respirators.

2.5 Manpower and Occupational Groups

The total number of men employed at the colliery in December, 1969 was 1 681and from Table 2 below, which shows the number and distribution of manpowerin face, 'elsewhere' and surface occupations during the year and for theprevious two years, it can be seen that the manpower had remained reasonablysteady.

TABLE 2.

Distribution of Colliery Manpower

YpaT*

1967

' 1968

1969

Average Numberof Men Employed

includingAbsentees

1 723

1 710

1 681

Per cent of men employed

Pace

38

38

40

ElsewhereUnderground

44

42

40

Surface

18

20

20

The colliery population was divided into occupational groups in the mannerdescribed by Bradley & Sadler (1971).

The total number of occupational groups at Vane Tempest in 1969 was asfollows:-

Face : 23 ' •

Elsewhere Underground 11

Surface 5

Individual daily records of attendance have been maintained and these,together with occupational group mean concentrations, give cumulative recordsof exposure to dust for each member of the colliery population.

3. SAMPLING AND EVALUATION

3.1 Sampling Programme

The distribution of the sampling shifts continued as. set out by Ashford &Smith (1956) and of the -284 samples taken, 208 were faceworkers, 57 withelsewhere underground and 19 with surface workers. Samples were also takenat the control point (25 yards from the face, in the return) to study therelationship between the face mean and control point mean concentrations.Sixteen such samples were taken and the value of the abpve, relationship isgiven for each face in Table 13. .

3.2 Method of Sampling

The method of sampling was by the 'random collier1 technique describedpreviously, (Bradley & Sadler, 1971) and the duration of samples was for thefull shift, portal to portal, in contrast to samples taken at the controlpoint, 25 yards from the face in the return roadway, which were for theworking period at the face only.

4.

3.3 Evaluation

Mass concentrations expressed as mg/m were obtained from the weights offilter deposits (after the application of moisture corrections) and thevolumes of air sampled. . '

Later, during compositional analyses at the Institute of OccupationalMedicine, dust was recovered from filters by ultrasonic washing and theamounts recovered were found to be in good agreement with the weightsrecorded in the field.

For the analyses, the dust from filters was bulked by occupational group.The amount of ash and.its quartz, kaolin, mica and acid soluble carbonate con-tents were reported by* Harrison (1971) and these are given in the tables.

4. RESULTS AND DISCUSSION

4.1 Faceworkers

The face charts, Tables 4-12, give details of seam and adjoining strata,descriptions of faces and methods of working. They also give, for theperiod, mean respirable dust concentrations by site and by occupationalgroup (Bradley & Sadler, 1971). Mean ash and quartz concentrations arealso given for each face site, and all the dust data are summarised .inTable 13.

4.1.1 High Main Sean. 1st East Face (Table 4) Respirable dust concentrationswere high all along the face (mean cone. 6.2 mg/m ) due, apparently, tointake pollution, indicated by the mean concentration of 4.9 ng/m5 at Site 1.

4.1.2 High Main Sean. 2nd East (E12) Face (Table 5) There was a build-upof dust along the face fron the intake ripping lip, mean concentration2.4 mg/n-5, to the return stable, mean concentration 8.4 rig/m*.

In July, 1969 the bi-directional shearer was changed to a uni-directionalshearer but as only four samples were taken in the later period there wasinsufficient information to indicate whether the change of machine made adifference to the dust conditions.

4.1.3 High Main Seam. E3t Face (Table 6) This face started production inthe last week of the period and only three shifts were sampled.

4.1.4 High Main Seam. E14 Face (Table ?) Only two samples were taken onthis face as it could rarely be found manned.

4.1.5 Yard Sean. 5th West (G05) Face (Table 8) Concentrations were highat the intake end of this face (mean at site 1, 3.9 mg/a ) due to the largeamount of development work being carried out in the vicinity of the intakeairway.

4. 1.6 Yard Sean. 1st East (G.11) Face (Table 9) Concentrations weregenerally low, the maximum single concentration being 5.1 mg/m' (return-,stable).

Early in 1969 there was a change of machine fron disc-shearer to trepanner.The mean of the 45 face 'Samples taken was 2.6 mg/a5 which, compared with .the5.3 mg/m5.for this face in the report for 1968 (Bradley & Sadler, 1971),suggested the change from shearer to trepanner reduced respirable dustproduction.

5.

This difference between the two nachines regarding dust production wassupported by observations at the control sampling point which showedconcentrations of 3.1 and. 6.1 ng/n3 respectively in 1969 and 1968. More-over, the difference was not explainable in terns of rate of coal productionsince both nachines worked at a rate of 125 tons per shift.

4.1.7 . Maudlin Sean. 3rd North Face (Table 10) The 3rd North Face duringthe survey was a standby face working only internittently.

4.1.8 Maudlin Sean 5th .North Face (Table 11 ) Concentrations (nean3.5 ng/n3) were generally very uniforn along this face. While not excessive,concentrations, were, nevertheless, high at the intake end of the face. •

4.1-9 Low Main Sean 1 st East ( J1 1 ) Face (Table 12) Production started inJanuary, 1970. • Only seven sanples were taken and these sanples cannot beregarded as truly reflecting the conditions. Nevertheless, the nean :.concentration, 8.7 ng/n oust be regarded as high.

' 5

4.1. .10 Ash and quartz concentrations of face sanples Ash and quartzconcentrations continued to be relatively low, the coalface nean ashconcentration being 1.26 ng/n*, 29 per cent of sanple, and nean quartz0.14 ng/n', 3.4 per cent of sanple, (Table 13).

The only very -high ash concentration was 3.5 ng/n3 fron sanples taken onE31 face in the High Main Sean where the nean respirable dust concentrationwas 9.9 ng/n . The quartz concentration of the .sanples fron this face wasalso relatively high (0.4 ng/n ).

4.2 Developnent. Elsewhere Underground and Surface , •' J''

This difference between the two machines regarding dust production w.asSbga5Blesptaken d 0de. elo.i?aen$s llelsewhere ^derg£ounddand on

oal5eogiê,n HidTa. ert3y,>> respectively "in 1969 ™.n.'963.. More-

over, the cliff ereaco was not explainable in ter™\3 of rate of/- tioal productionyinco both machines worked .-it aT&jPi! 3f 125 tone. par shif,t;'

4.1 ,7 P£ §i2Rn§&t:iKj ]i';,Co duringthe- tn;rvcy'T-i7?u ^ '° '

rn,. T-.I .-. _L1— ' ~y,i ...-i...„_,. .... -l r. . -, -- -

;Jo5 rig/nv) wore^ generally vary uniforr....,„.(...^ „,,-„, . , ,*.-,. LlU-L-.o-^J-J.....;

4.1-9I O.G.S.N.

can 1st Ea:.t (.111) P-c

? R§ spirabl ef.,_ c

.t $H§tintalc'Concentration

:„ While noj

end 4?htho f;Joncentration

excessive,co3QuartzConcentration

Jj-.yiuary, 1970. Only spvc-n^Highj'tein 3Cojtl ][Devel opne.ntc^9k''J^.W.tGo;al D,eYard Coal Deveiopnetit/Maudlin

sariplcc v;or

F 213

:.• takon Tnd tilLun4%5-d 2.;1 hi

5.0

%r:A6)

3rgr,o;unq 26 v;.;CSur,face'rO, 3^1 •,-,(.,,.: CljRt Ofi '...' . - . * • ,

>3t: aanpies c;.elo32i39he rv

0.641.81

0.40

,nnot '-boan 0.40

0.060.210.140.220.060.05

rtziirta

The only very high a^h concentration wiz 3«5 •"•^•S/>^ ^ro .Bariploa taken onp]3'1 face in j:h.o IlietAMXideii'OjtesvnuigtberhQf;.s.anpie.Sipirablc dust concontratio?!v;n.G 9.9 '.':•&/~\J. Tho quarts Concentration of the samples- fr0:1 this face wasalno relatively high, (0»-4 ^g/'- )» .

•'<;-«^ Iiî?:i-£2U2Ii^..SIj^3îcre_ Jfcdojrgrouj^l__£j>dMSujî:V.:£O'.•.n''.inc , r ,"-.r':'."•.' 4'..'!J; '•.•r."'<:.i.;c'!ji-.". v. •."

Ijh.g .clQfr?.iLs..of - a^plfes, taken in. dp.vpl9ônj;:j', i_c?lacVhg):;>f Liii(:iG.rgr.au.iid--'and onj;ly6;,aiirf.acje; tvro^îvc^'i-a^Tablc >/•"' '"•""'.••.-.•cu::-.-"l-- :i!. V-;r: ;; - . ,d I^C.^.' ',.:;.--••-

6."' -- ^

The nean concentration during coal developments, which were hand-got, was• 4"»3 ng/EK "(Tabrre'r13.)'Vsinilar ,to; the.;nean. ppn'oentravtion-ofiJcoal-faeesf' but ?ash

and.";quartz figures"1''wer'e^;rela't^ 'Thl"s;was •unusual';as," ;!

fnechanised fac'iss"rtena'"lo" be'<iess''di'scraxdna'ting;'':fchan the hand-filling hethods; In taking rb|pf^pr:'floor'.""'"""'''

.Re'~

......The-' nean-1 respirable''eoncentra't;i'on ^t;9rng/n ) for drifters^was..^^!^ low; but^.a^h^coiipente^^ -1 "'";'"•"-.•• ' • • • • ? < r^ . '.",'•.' ••,'1'V'.1'

.. 1 "El-sewhere- unde r'gr ouiio. - and' surface - e oncerit rations- wer e-'gene ralLy-.-l owv-r ;- -»r.—?; r . L ' ; - . • • » . , : J i ^ * • • ! . - • ; . > • / . V , , ! - - . . > > . . , . . = : . : : . » - . ; - , - > ; - ' • •.?.:• '•• -,.,•., : H > J •

' ' ' " " " " ' " ' * - -, - i V - • . - • « r i : . . ; o : : . . > - . - . . - ' . . - ; ' i : - ; : ) ; %tionship' between : Control Eoint. and. Face, Coiic'entrations> (Table.' 13')'( w- '<w . • ,j ., '..\î . iJ •-"• " j. 'f-r ; '-^.. -v-" V " M-i-vf.--— -:*i-;'-::--.'xi-f.t'f -i-l' ':.. •*:!t'- vjp |

" •!';-;'-;ri- i • U\L''!tf^ ' '-- ' :-'^'i^ r-^-<-A- I • ' . . ' v^y^'-'i:-^'^1"'^' -^P^ '.jpJ?casipnsJ,sinT&t^û^'point oh the!;return rpadvwhen'.f;ace;|occupa-tionai; grpups w;ere being,saapieî,!during ''cVal^getting; operations". .*'• ,Ther•ratio] of Hifean/ control'' point . ppncenf-';

' tratipn to' ne'anlfaceibonc'e^^^ *.se^rs""wasi 1 •12." "This' is; very;;closeto the'1.10 quoted previously (Bradley''& Sadler, 19^1) ,'b'ut Ipwer;than the;-figure of 1.4 used by Jacobsen, Rae & Wal'tbn' (i'969) in'the Ihterin StandardsStudy,

4.4, Relationship between Dust and Face Machines , , . :::'.. ..'.. *'.„.**• ...,.=:.--.;.—- ,..,',... ".. ~~ <-..,-.. .. . . - ..H ,......:,-. •-'.'. j :.••. ••

It has already been noted in Section 4*1.6'"that' given sinilar workingconditions, e.g. sane coalface,'sinilar production rate, shearers appear tonake nore respirable dust than trepann'ers.

A variety of*nachihes, classif;ied'as;.,'shearers.' /'.trepanriers1 or 'ploughs'were used on the faces'at'Vane 'Tenpest, and'Table 14 sunnarises forfaces, details of dust concentration, output and nachine used.

' Respiirable Eriist Concentrations by Sean, Pace and Machine.

V '.'

/' -rr

I '!'

,!,;

i'O— _ ..

••

;-... -.Sean: •-.'i •

•High' M&ln--5 ' '

,0 . : ,'M.""' ' ~Yard ,;.-

'..••._:"...-.-V. ".'..;

Maudlin

Low Main. •

,V ce:| ,1 • .- ! - }

; 1 st " East " "cEil;2.- . .,;•VE»31 ; • ,v*:-E»14r..J,. .,..._

':G,05; .}.',G»1 1 r -"(1st East)

3rd North5th North ;

-J.lt,. . :

; . Face;"." Mk'chine" '

Shearer Vri-. •• . "! ~)\H -t~^ •

(i)"' ' ( -'';

r;}''- i'c ,,"< 't',*" V:e ~~ " ~

Trep'anner%. -"• ..• "-

••'• ,;: '•' ',. • .

Plough. ,n •

Shearer" . .

Output;per Shift'

'200',™"". ""'. 175 '-T•.,.295. i;:-. 150 /£ ..

-'• i ••''•- :

• A9P 'i.I" <'1;25' :. ,' i.r

'• i-. .v-;V ..-.., ,.,.

140-150 x.w

150 : L

No. of PrPdiShifts/Cycle

, Q-— -- •

- ; : .-'4 ... 'i •' •'

., _j .,...;. 4.-.-fIW ,Ji

• • 2. ;C': ';.,./•.• - ;! ••-.-. •.••i.-&f&'-,.-"• 4 • • ;,S+,i 4? ;,.•;•;•"

2.-•;;. .-2 .;.-....:.-. ••; 4. . ..

R'esp; Dust"

- ---- -:6'.'2 .;....::;,5>4:;:-s-:.:.•• .VC . !-' •.'•'-.

:;;;r'10,0? '.:HW.- -I,..v.4'- .--i J >->.-J-:

- - .4.0,-.-:,.:,-,.::•'. 2.6/.-:. ;;

'• • • - ; . ' •

3.3..3.5

8.7.

N;O. ofObs.

] 22^J30' \ 3^J 2, 1'.-: 4530

740

7

Fron Table 14 it appears that higher dust production was a feature of theshearer conpared with plough or trepanner. These observations are unaffectedby consideration of the composition of the dust since the mineral content wasgreatest in sanples fron the Yard Sean and least in the Low'Main Sean.

7.

5. OBSERVATIONS AND CONCLUSIONS

During the present survey all the occupational groups at Vane Tempest Collieryhave been sampled, the nain sampling effort being directed to the faceoccupational groups on the coal-getting shift.

The following is a sunnary of the principal conclusions:

(i) Many face concentrations appear to have been affected byappreciable amounts of dust in the intake air. Sone of this was due todevelopment work on the intake side of a number of faces.

(ii) Respirable dust concentrations were highest in the High Main andLow Main Seams and there was thought to be some connection between this dustand the type of face machine (shearers) used.

(iii) Respirable dust concentrations for hard heading (stonework),elsewhere underground and surface work continued to be auch lower than duringcoal-getting operations.

(iv) Although ash and quartz contents of samples varied from seam toseam, mineral concentrations were, as expected, highest in High Main and LowMain Seams where the respirable dust concentrations were high. !

R E F E R E N C E S

Ashford, J.R. & Snith, P.H. (1956). The allocation of sampling effortin environnental surveys. N.C.B. Report No. SC.370/ER/28.

Bradley, A. & Sadler, T. (1971). Environnental conditions at Vane TenpostColliery, 1968. Institute of Occupational Medicine Report No. TM/71/17.

I

Harrison, G.E. (1971). Analysis of gravinetric filters taken at VaneTenpest Colliery. Institute of Occupational Medicine. File BP.31027.

Jacobsen, M., Rae, S. & Walton, ¥.H. (1969). The relationship betweendust and pneunoconiosis as the basis of a gravinetric standard forairborne dust underground. N.C.B. Re-port No. ISM/P(69).1.1»

TABLE 4

PACE SUMMARY CHART 1st East PACE

HighMain02:091

N.C.B.Rank"Code

502

£ o.VxC5

StartingDate

Sept.1965

T?QPA

FinishingDate

January1970

Type of Face: Single unit longwall advancing

Length: 238m Height: 1 »83m

Shift Cycle: Pour shift production

Average Output per Shift: 200 ton

SITE

Method of Working

Machine Details

Dust Suppression

Supports

INTAKE ROAJ)HEAD

Hand filled

Holman percussive drill

Wet drilling

3«66n x 2 -44mArch girders

Roof: Blue shale

Seam: 0'025m band near top of seam, bands of inferior coal

Floor: Gray seatearth' •z

Average Ventilation Quantity: 5*89 m /s\

Temperatures: 25'5 C <lry, 22«2 C wet, Rel. Humidity: 75$1 i .

INTAKE STABLE

Hand filled

Penumatic pick

Hydraulic props,straight girders

FACE

Power loaded

Ranging drum shearer

Sprays on shearer

Self -advancing supports.

RETURN STABLE •

Hand fillpd

Pneumatic pick

i i

Hydraulic; props,straight girders

RETURN ROADHEAD

Hand filled

Holmanpercussive drill

Wet drilling

3 '05m x 2«44mArch girders

REMARKS

Conditionsnaturallywet atreturn end

COAL GETTING SHIFTS

SITE

Occupation

O.G.S.N.

Mean Resp. DustConcentration forOccupation / 3mg/m

Mean Resp. DustConcentration forSite mg/m5

AshCone.

Composition mg/ia3bySite Quartz

Cone.mg/m3

1

Rippers

P207

5«1*(4)1-6

Stablemen

P208

3.9(1)•*

4-9*(5)1-3

1-34

0-16

3

Stablemen

P208

6-9(1)

' ••

6-9(D~

1-48

0-21

4

Machine Operators

F209

5-9(5)1-8

Sectionmen

P210

5.9•* (6)

1*6

5-9(11)1-6

1-52

0«19

• i5-' ii iStablemen .j

F208 : '

7-8 :

(2)1-3

7-8(2)1-3

(

: '

1-67

0-24iI

7

Rippers

P207

8*1(3)2-6

8-1(3)2-6

2-33

0-27

8

ControlPosition

7-5(3)0-6

1-99

0-26

P - Preparation shifts•z

* 5«1 Mean Respirable Dust Concentration mg/nr(4) Number of Samples1«6 Standard Deviation

TABLE 4

TABLE 5

FACE SUMMARY CHART E12 FACE

Seam

HighMain02:091

N.C.B.RankCode

502

FaceStartingDate

Feb.1969

FaceFinishing

Date


Length: 110m

Shift Cycle: Four shift

tAverage Output per Shift:

Height: l'90m

production

175 ton

Roof: Blue Shale

Seam: 0«025m band near top of seam, bands of inferior coal

Floor: Gray qeatearth

Average Ventilation Quantity:

Temperatures: ; 26*1 C dry, 22*8

5 '18 m3/s

°C wet, Rel. Humidity: 75$

SITE

Method of Working

Machine Details

Dust Suppression

Supports

INTAKE ROADHEAD

Hand filled

Holman drillingmachine

Sprays

Arch girders

INTAKE STABLE

Hand filled

Pneumatic picks

Hand sprays

Hydraulic props,girders '•.

FACE

Power loaded

(a) Bi-directional disc shearer

(b) Uni-directional disc shearer

Sprays on shearer

Dobson 6-leg hydraulic chocks

RETURN STABLE

Hand filled

Pneumatic picks

Hand sprays

Hydraulic props,girders

! RETURN ROADHEAD

Hand filled


None*

Arch girders

REMARKS

(a) Bi-directional -discshearerFeb. -July, 1969

(b) Uni-directional discshearer from July,1969

COAL GETTING SHIFTS

SITE

Occupation

O.G.S.N.

Mean Resp. DustConcentration forOccupation mg/rn3


AshCone.

Composition mg/m3

Site Quartz

Cone.mg/m3

1

Face Rippers(a) (b)F207 F207

2-3* 2-5(1) (1)

-

2'<f*(2)0-1

0-69

0-08

3

Stablemen(a) :F208 :

2-6 I-.(3)0*6

(b)F208

k-6(l)-

3'1( LLf

i

0-66

0-09

k

Machine Operators(a)F209

5'(5)1-7

Sectionmen(a)F210

6-0(6)3'2

5-7(11)2-6

1* 7

0-19

5

Stablemen(a)F208

8-8(6)3-7

(b)F208

5'9(1)-

8-if(7)3-6

1-80

0-25

; 7

s

; Face, Rippers(a) (b)

• F207 F207

•1 2'5(5) (1)1-8

• 3-8(6)1-8

,1-09

0'12

8

Control Position

3-7(4)1-4

ii

1-37

0-17

*For footnotes, see Table k

TABLE 5

TABLE 6

PACE 3DMHARY CHART E31 FAGS

Seam

HighMain

02:091

N.C.B.RankCode

502

FaceStartingDate

April1970

ij•

jt

|i

i

FaceFinishing

Date

Type of Face : Single unit longwall advancing

Length : l6?m Height : l-57m

Shift Cycle : Four shift production

Average Output per Shift : 295 ton

rRoof : Blue shale

! Seam : 0'025m .band near top of seam, bands of inferior coal

Floor : Gray jseatearth

Average Ventilation Quantity : 6°03 m /s

i i Temperatures : 21'1°C dry, 17"80C wet, Rel.Humidity:

SITE '

Method of Working

Machine Details

Dust Suppression

Supports

IHTAKE EOADHEAD

Hand filled

INTAKE STABLE

Hand filled


¥et drilling, waterampoules

Arch girders

Pmeumatic pick ,longw allcutter

Hand sprays, water

FACE

Power loaded

Uni-directional disc shearer

ampoules j Sprays on shearer


RETURN STABLE

Hand filled ;

Pneumatic pickrotary 'drill

i

•

RETURN ROADHEAD

Hand filled

Holinanpercussive drill

Met drilling,water ampoules

REMAKES

Cutting floorintake endcutting roofreturn end

ii

" 1Gullick 6-leg hydraulic chocks Eydrauliq props, Arch girders

; I gi.ru.wrs . j .;

COAL GETTING SHIFTS

SITE

Occupation

O.G.S.N.

Mean Resp. DustConcentration forOccupation ms/rLJS/


AshCone.*

Composition mg/m"by Quartzsite Cong

mg/m

1 3

Rippers . •:'.•

F 242

9'1*(1)

-•

9-1*(1)-

2-92,

j 0-30Ii i

4

Machine Operators

F241

10 '3(2)3-3

10-3(2)3-3

3-78

0-45

5

'

7 8

* For footnote, see Table 4. TABLE 6

TABLE 7

FACE SUMMARY CHART E.14 PACE

Seam

HighMain02:091

N.C.B.RankCode

502

PaceStartingDate

February1970

PaceFinishingDate

Type of Pace:

Length: 85m

Shift Cycle: 2

Average Output

Single unit, longwall advancing

Height: l°75m

C.G.3. - 2 Prep, on four

per Shift: 150 ton

shift rota

Roof: Blue shale

Seam: 0«025m band near top of seam^ bands of .inferior coal

Floor: Grey seat earth

Average Ventilation Quantity: 5°55m3/s

Temperatures: 21»1°C dry, 18»9°C wet, Rel. Humidity: 81$

SITE

Method of Working

Machine Details

Dust suppression

INTAKE ROADH3AD

Hand filled

Percussive drill

Wet drilling,water ampoules

Supports i Arch girders

iINTAKE STABLE { PACE

Hand filled

Pneumatic pick,rotary drill

Watqr ampoules


Power loaded

Uni-directional disc shearer

Sprays on shearer

Dobs on 6-leg hydraulic chocks

: ' '.RETURN STABLE • RETURN ROADHEAD

Hand filled

Pneumatic pick,rotary drill

¥ater ampoules


REMARKS(

1Hand filled j

Percussive drill

¥et drilling,water ampoules

Arch girders

i

30AL GETTING SHIFTS

SITE

Occupation

O.G.S.N.

Mean Resp. DustConcentration forOccupation mg/m3

Mean Resp. DustConcentration forSite mg/nK

AshComposition Cor/c-9

mg/rn-3

QuartzSite Cone.

mg/BK

' Sectionncn

P. 2 10

9.9*

(1)mm

9.9*

CD

3-63

0-43

3

;

4 5

i

'

7

Rippers

8

iF.207

10- 1(1)

10-1(1)

2*69

0-37t t

*For footnote, see Table 4. TABLE 7

TABLE 8

FACE SUMMARY CHART G05 FACE

Seam

Yard02:162

N.C.B.RankCode

501

SITE

Method ofWorking

Machine Details

Dust Suppression

Supports•

FaceStartingDate

December1967

FaceFinishingDate

INTAKE ROADHEAD

Hand filled

Holman percussivedrill

Wet drilling, waterampoules, sprays

Arch girders

Type of Face: Single unit, longwall advancing

Length: 210m :.. Height: 1-OOm

Shift Cycel: Four shift .production


INTAKE STABLE

Hand filled

Pneumatic pick,cutter

Hand sprays


t

Roof: Hard sandstone

Seam: ]

Floor: Hard seatearth

Average Ventilation Quantity: 7*56m.3/s ,

Temperatures: 22«8°C'dry, 20'6°C wet, Rel. Humidity: 82$

'. FACE . . ;

Power loaded

Conveyor mounted Trepanner

Sprays on Trepanner1

Westphalia 4-leg hydraulic chocks

RETURN STABLE :

Hand filled

Pneumatic pick,cutter ';

Hand sprays <|i

Hydraulic ijprops, girders,

RETURN ROADHEADi . . . .

Hand filled

Holman percussivedrill

Wet drilling, waterampoules

Arch girders

. REMARKS :

Intakecontaminationusually baddue to outbyedeve lopmentand dirtytrunk beltboot— end

COAL GETTING SHIFTS

SITE

Occupation

O.G.S.N..

Mean Resp. DustConcentrationfor Occupationrng/m3

Mean Resp. DustConcentrationfor Site mg/m'

AshCompo- ' VOJ}G£sit ion ; mg/m3

by QuartzSlte Cone.

1 mg/m3

1

Rippers

P. 215

4-5*(3)1-3

Rippers

P. 229

3-0 •(2)2-4

3-9*(5)1-7

1-17

0«12

3

Stablemen

•F.216

6-1(4)2-4

Stablemen

F.227

1-3(1)

—

5-1(5)3-0

1-60

0-15

4

MachineOperators

P. 2 17

4.4(5)1-6

Sectionmen

F.218

3-5(5)I'O

MachineOperators,ProppersF.226

2-0(2) -0*7

PropCounters

E.65

5 ;Stablemen

F.216

2-3 4*5(1)-

3-5(13)1-5

0?97

0-10

(3)1«0

4-5 •'(3) j1-0 !

1

1«56 i| .i1

0-15 i

7

Rippers

F'-«2 5

4-5'(3)-1-7

Rippers

P. 230

1-4(1)-

3-7(4)2-1 ::••

1*21

0-13

. . 8 .

?*"••'. ..-•••-?... •Control:,Position

3-5(3)

•0-8

0-70

0»08

*For footnotes, see Table 4

•--A TABLE 8

TABLE 9

FACE SUMMARY CHART G11 FACE

Seam

Yard02 : 1 62

N.C.B.RankCode

501

FaceStartingDate

June1968

FaceFinishing

Date


Length: 155m Height: 1 »00m

Shift Cycle: Four shift production


Roof: Hard sandstone

Seam:

Floor: Hard seatearth

Average Ventilation Quantity: 7 '31 m /s

Temperatures: 22-8°C dry, 20-6°C wet, Rel.Humidity 82$

SITE 1 INTAKE ROADHEAD

Method of Working

Machine Details

Hand filled


ii

Dust Suppression

Supports


Arch girders

SITE

Occupation

O.G.S.N.

Mean Resp. DustConcentration forOccupation mg/m3

Mean Resp. DustConcentration forSite / 3

AshCone.

Composition mg/m3bySite Quartz

Cone.mg/m3

0

FaceTradesmen

(b)F220

1-6(2)0«2

1-6(2)0-2

0'46

0.05

1

Face FaceRippers Rippera

(a) (b)F145 F224

4-0 1 «6(1) (4)

0-5

2-1(5)1'1

0-67

0-05

. INTAKE STABLE

Hand filled

Pneumatic pick, cutter

Hand sprays


FACE

Power loaded

(a) Uni-directional disc shearer(b) Conveyor mounted trepanner

Sprays on

Mastarbar

trepanner and shearer

(Huwood) 6-leg hydraulic chocks

RETURN STABLE

Hand filled

Pneumatic pick,cutter

Hand sprays


RETURN ROADHEAD

Hand filled

Holiaan percussivedrill


Arch girders

REMARKS

(a) Uni-direct-ional discshearer from 'June 1968 toMarch 1969

(b) trepannerfrom March 1969

COAL GETTING SHIFTS

Stable-men

(a)F143

3-8(1)

—

3

Stable-men

(b)F222

1-4(3)0*4

Stable-men

(b)F216

2-9(3)1.1

2.4(7)1.2

0-77

0.07

Sectionmen

(a)F166

2.1(2)0.8

(b)F218

3-0(2)2-2

MachineOps.

(b)F217

2-6(3)1-1

(b)F221

1.5(4)0-1

4

FaceTradesmen

(b)F220

1-5(1)-

Over-men

(b)S63

1-6(2)0-2

Deputiesinc.

S ' f irers(b)085

1-5(2)0-0

2.0(16)0-9

0-73

0.07

5

Stablemen Stablemen

(b) (b)F21 6 F223

4.9 4.0(3) (4)1-2 3-7

4.4(7)2-7

2 .11

0«20

7

FaceRippers

(b)F215

3-2(2)1-4

3

••(b)F225

2-9(4)1-8

0(6)1

0

0-

6

99

11

9

FaceTradesmen

(b)P220

2-2(2)0-4

2«2(2)0-4

0-63

0«07

8

ControlPosition

3-1(3)1-1

1«29

0*28

i

* For footnotes see Table 4

TABLE 9

TABLE 10

FACE SUMMARY CHART 3rd North FACE

Seam

Maudlin

02:200

'

N.C.B.Rank .Code

501 b

FaceStartingDate

March1966

SITE

Method of Working

Machine Details

Dust Suppression

Supports

FaceFinishingDate

i

INTAKE ROADHEAD

Hand filled

Holman drilling machine

¥et drilling, waterampoules, sprays.

3« 66m x 3* 05m Archgirders

Type of Face : Single unit longwall advancing

Length : 190m Height. : l«37m

Shift Cycle : 2 production shifts, 2 shifts standbye

Average Output per Shift : 140 ton

INTAKE STABLE

Hand filled

Electric cutterRotary drill

Hand sprays


FACE

Power loaded

Plough

Sprays at face transfer point

Hydraulic chocks, props, girders

Roof : Hard shale

Seam :

Floor : Soft shale

Average Ventilation Quantity : 7*56 m /s

Temperatures: 22 '2 C dry, 18-9 C wet, Rel. Humidity Ijfo

RETURN STABLE

Hand filled

Electric cutefceirRotary drill

Hand sprays

Hydraulic props,girders .

RETURN ROADHEAD

; Hand filled

Holman drilling machine

Wet drilling, waterampoules.

3 '66m x 3 "05m Archgirders

REMARKS

I

COM, SHIFTS!

SITE

OccupationO.G.S.N.

Mean Re sp. DustConcentration forOccupation 3


AshConc^

Composition mg/m

by Quartz

Site Conc3mg/m

1

Composite StonemenF212

1-7*(1)

—

1-7*(1)-

0*52

0-05

i3

StablemenF176

4.4(2)0*4

4.4(2)0-4

1-07

0-13

4

StablemenF176

1-8(1)

—

SectionmenF177

3-6(3)1-0

3-2(4)I'l

0-78

O'lO

5t

7 8

ControlPosition

6*0(1)-

2*47

0-43

* For footnote see Table 4. TABLE 10

TABLE 11

FACE SUMMARY CHART 5TH NORTH PACE

Seam

Haixflin02:200

N.C.3.RankCode

501b

PaceStarting

Date

March1969

FaceFinis hingi

Date

March1970

ii

Type of Face: Single unit, longwall advancing

Length: 140m Height: l'37m

Shift Cycle: Four shift production.


Roof: Hard Shale

Seam:

Floor: Soft shale

Average Ventilation Quantity: 3'01m3/s

Temperatures: 22»2°C dry, 18»9°C wet, Rel. Humidity: 73$

ISITE

Method ofWorking

MachineDetails

DustSuppression

Supports

INTAKEROADHMD

Hand filled

Holmandri llingmachine

¥et drilling,waterampoules,sprays

3*66m x3* 05m archgirders

INTAKESTABLE

Hand filled

Electriccutter,rotary drill

Hand sprays

Hydraulicprops,girders

i iFACE | RjHTDRN

Power loaded

Plough

Sprays at face transfer point

Hydraulic chocks, props, girders

• STABLE

Hand filled

Electriccutter,rotary drill

Hand sprays

Hydraulicprops,| girders

RETURNROADHEAD

Hand filled


¥et drilling, waterampoules

3* 66m x 3* 05m archgirders

REMARKS

Some fewpr epar a ti o nshifts wereworked ,

COAL GETTING SHIFTS

SITE

Occupation

O.G.S.N.

Mean Resp.DustConcentrationforOccupation

/ \mg/nKMean Resp.DustConcentrationfor Site mg/m3

AshCompo- Cor}c4sition JW111

by QuartzSite Cone.

mg/m.3

1

Rippers

P. 174

3-8*(5)1-0

3-8*(5)1-0

0-95

0-11

3

Stablemen

F.176

4-1(7)2-0

4*1(7)2*0

I'OO

0*12

4P

Sectionmen

F.177

2«4(1)-

2-4(1)_

0»59

0*07

Face BeltControls

F.175

3-1(3)0*6

Sectionmen

F.177

3*6(10)1-4

4_.Face

Tradesmen

F.220

2-7(3)0»6

3-3(18)1-1

0'86

0-10

Overmen Deputiesincl.

ShotfirersE.63 S.85

I2-5 i 3-4(1) j (1)

!"

II

•

5

Stablemen

F.176

4-0(2)0-3

4'0(2)0*3

0-97

0-12

7

Rippers

P. 174

3-4(7)1*3

3-4(7)1*3

0»85

0-10

9

FaceTradesmen

F.220

2-0(1)

2-0(1)

0*57

0'06

t

8

ControlPosition

6-8(1)_

0-75

0*11I

P — Preparation *For footnotes, see Table 4TABLE 11

TABLE 12

PACE SUMMARY CHART J11 PACE

Seam

LowMain02:221

N.C.B.RankCode

401 b/501 b

PaceStartingDate

January1970

PaceFinishingDate

Type of

Length:

Pace:

248m

Single unit longwall

Height :

Shift Cycle: Pour shift

Average Output per Shift

1'22m

production

: 150 ton

advancing Roof: Sandstone

Seam:

Floor: Medium shale

Average Ventilation Quantity: 5«47m /s

Temperatures: 25 '6 C dry, 22»2°C wet, Rel. Humidity: 757°

SITE

Method of Working

Machine Details

Dust Suppression

Supports

INTAKE ROADHEAD

Hand filled

Holnian percussive drill


3 -96m x 3 '05mArch girders

INTAKE STABLE

Hand filled

Pneumatic pick,rotary drill, cutter

Hand sprays


PACE

Power loaded

Bi-directional disc shearer,activated ram plates

Sprays on shearer

Bonser 4-lcg (3B-1F)hydraulic chocks

RETURN STABLE

Hand filled

Pneumatic pick,rotary drill, cutter

Hand sprays


R3TURN ROADHEAD

Hand filled



3 -96m x 3 -05mArch girders

REMARKS

COAL GETTING SHIFTS

SITE

Occupation

O.G.S.N.

Mean Resp. DustConcentration forOccupation / 3mg/m


AshCone.

Composition mg/m3bySite Quartz

Cone.

1 3 4

Sectionmen andMachineOperatorsP231

9.9*(3)8-9

Face Tradesmen

P220

7-2(1)•»

9.2*(4)7-4

1-39

0-17

5

Stablemen

F233

7-8(2)4-0

7-8(2)4»0

1»02

0'12

7

i Rippe rs

P235

8-4(1)••

8-4(1)~

2«01

0«32

8

ControlPosition

7-1(1)

—

1-77

0-27

* For footnotes, see Table 4

TABLE 12

T A B L 2 13

Summary of Dust Concentrations and Composition by Face and General Environment

•-3

1G

Class ofEnvironment

MechanisedFilling

Preparation

Developmentin Coal

C O A L F A C EAll Shifts

Stone Drifting

ElsewhereUnderground

Surface

Seam

High Main

SeamYard

SeamMaudlin

SeamLow Main

Seam

Face

1st EastE12E31ElifMeanGilG05Mean3rd North5th NorthMeanJllMean

All Seams

All Seams

All Seams

All Seams

All Seams

Mean Resp.Dust Cone.

mg/m^6*2 (22)5'i+ (30)9*9 (3)

10-0 (2)6-1 (57)2«6 (if5)k'O (30)3'1 (75)3-3 (7)3*5 (*fO)3'5 (V?)8-7 (7)8-7 (7)1-8 Of)

if3 (18)if 3 (208)if8 +

1-9 (5)

2-1 (52)

1-2 (19)

Con. Pos.

Face

Ratio1*210»69-_

1*190-88

1«82l»9if

0-82

Mean

Ash

mg/nKl»6l1'353^73'161*590-901*201*020»830«890-891*371*370*56

1-691-261-31+

1*50

0-65

o-ifO

Cone.

Quartz

mg/m^0'200'170»390*400-200-090-120-100-100»10O'lO0-170-17

0*06

0'22

O'lk0»15-h

0*22

,0»06

0-05

Ashin

Sample'%

26-1

32-8

25'if

15-8

31«3

39-3

29'327-2+

79'0

30' 9

33-5

Quartz

%

12'7

9«8

'"

11-7

12-5

11-5

13-111*411-7+

15'0

9-1

12-5

Compos:

Kaolin

%

16-6

ifO'2

2V 6

31' f

29*6

27-328-6*fO»5+

15*2

30»8

32-3

ition o]

Mica

%

33'^

11-5

22*2

28-6

23°2

20" 7

21'521»if+

18-0

21»2

22 '8

f AshCa.MgGarbs.

%

if 3

6'6

7-1

6»0

6-5

3-8

5-85' 5+-

17*6

16-6

IronGarb.

%

8*8

11*3

10'6

7*38-9

10' 8

lO'l8-8+

-

10-1

7.9

+ Values for 1968 Figtires1in brackets denote the number of samples

HEAD OFFICE:

Research Avenue North,Riccarton,Edinburgh, EH14 4AP, United KingdomTelephone: +44 (0)870 850 5131Facsimile: +44 (0)870 850 5132

Email: [email protected]

Tapton Park Innovation Centre,Brimington Road, Tapton,Chesterfield, Derbyshire, S41 0TZ, United KingdomTelephone: +44 (0)1246 557866Facsimile: +44 (0)1246 551212

Research House Business Centre,Fraser Road, Perivale, Middlesex, UB6 7AQ,United KingdomTelephone: +44 (0)208 537 3491/2Facsimile: +44 (0)208 537 3493

Brookside Business Park, Cold Meece, Stone, Staffs, ST15 0RZ,United KingdomTelephone: +44 (0)1785 764810Facsimile: +44 (0)1785 764811

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HISTORICAL RESEARCH REPORT - IOM | Institute of ... · HISTORICAL RESEARCH REPORT ... Sampler, Type 113A. Concentrations, ... 290 605 35 Yard 54 055 66' 184 51 195 •59 310 54 000