US1503870A - Coal-dust eliminator - Google Patents
Coal-dust eliminator Download PDFInfo
- Publication number
- US1503870A US1503870A US613276A US61327623A US1503870A US 1503870 A US1503870 A US 1503870A US 613276 A US613276 A US 613276A US 61327623 A US61327623 A US 61327623A US 1503870 A US1503870 A US 1503870A
- Authority
- US
- United States
- Prior art keywords
- coal
- cutting
- dust
- teeth
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002817 coal dust Substances 0.000 title description 8
- 238000005520 cutting process Methods 0.000 description 22
- 239000003245 coal Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000428 dust Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000036346 tooth eruption Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
Definitions
- Our invention relates machinery.
- One object of this invention is to provide improved means to eliminate the danger of generally to mining finely pulverized coal dust being suspended in the air and deposited over the entire mine.
- Another object is to increase the efficiency of coal cutting machines by affording a cleaner cutting face. and reducing the temperature of the cutting teeth.
- FIG. 1 is a plan of a portion of a mine showing a coal cutting machinin working position
- Fig. 2 is a section on line 2-2 of Fig. 1 on a larger scale
- Fig. 3 is a detail section on line 3-3 of Fig. 1 showing the cutter chain and a jet of water playing on the surface of the deposit being cut;
- Fig. 4 1s a lan showing a coal cutting machine providbd with a plurality of spray nozzles.
- FIG. 8 is a coal cutting machine having a cutter bar 10, and cutting chain 12 provided with teeth 14.
- a water connection 16 hose I8, and a stream of water under pressure passes through a pipe 20 to a nozzle 22 and discharges in a jet or spray 24, between the moving teeth 14 againstthe cutting face 26 of the coal deposit 28 at the is attached to a flexible point where the cutting teeth begin cutting coal.
- the application of water at this point enables the moving chain and cutting teeth to carry this water the entire length of the face being out, for example from points 30 to 32 in Fig. 1 thus thoroughly mixing the avater with the machine cuttings and coal ust.
- the machine 8 is advanced to the Working face and a cut 34 ismade to a given depth by means of the revolving chain.
- the machine is moved transversely along the entire face thus undercutting the coal 28 as shown in Fig. 1 and Fig. 2.
- the spray or jet of water 24 under pressure is directed against the cutting face 26, thus wetting the cuttings and dust a3, cleaning the cutting face 26 and cooling the teeth 14 of the cutter chain.
- a number of nozzles 22 and connections may be placed on the water pipe 20 as shown in Fig. 4, thus allowing a number of sprays or jets to be used against any portion of the cutting face 26.
- the wet cuttin s d may be loaded with the coal after it is shot, thus eliminating the expensive removal of the dry cuttings and dust before shooting.
Description
Aug.
E. BALL ET AL COAL DUST ELIMINATOR Filed Jan. 17, 1923 2 Sheets-Sheet 1 IINV TOR Eda/in a//.
WTM
Patented Aug. 5, 1924.
NT @FFIWE.
EDWIN BALL AND JAMES M. MGHUGH, OF BIRMINGHAM, ALABAMA.
COAL-DUST ELIMINATOR.
Application filed January 17, 1923. Serial No. 613,276.
i To all whom it may concern:
Be it known that we, EDWIN BALL and JAMES M. MGHUGH, citizens of the United States, and residents, respectively, of Birmingham, Alabama, have invented certain new and useful Improvements in Coal-Dust Eliminators, of which the following is a specification.
Our invention relates machinery.
One object of this invention is to provide improved means to eliminate the danger of generally to mining finely pulverized coal dust being suspended in the air and deposited over the entire mine.
Another object is to increase the efficiency of coal cutting machines by affording a cleaner cutting face. and reducing the temperature of the cutting teeth.
Heretofore, when mining coal with a cutting machine, it has been customary to 0p erate the machine against a dry face and after finishing a cut to remove the fine dry cuttings from the working place before shooting the coal. By such method much fine coal dust is left suspended in the air and it slowly settles over the entire mine thus rendering the mine unsafe from the danger of coal dust explosion. By the use of our improved method and apparatus the danger of fine coal dust suspended. in the air and deposited over a wide surface is eliminated. The time lost in loading the dust and cuttings before shooting the coal at the face is eliminated, a lower temperature of the out ting teeth is maintained thus decreasing dulling the teeth and the necessity of changing them, greater speed of operation is afforded by a cleaner cutting face and much better ventilation of the working place is possible.
The invention is illustrated in the accompanying drawings in which Fig. 1 is a plan of a portion of a mine showing a coal cutting machinin working position;
Fig. 2 is a section on line 2-2 of Fig. 1 on a larger scale;
Fig. 3 is a detail section on line 3-3 of Fig. 1 showing the cutter chain and a jet of water playing on the surface of the deposit being cut;
Fig. 4 1s a lan showing a coal cutting machine providbd with a plurality of spray nozzles.
Referring to the drawings 8 is a coal cutting machine having a cutter bar 10, and cutting chain 12 provided with teeth 14. A water connection 16 hose I8, and a stream of water under pressure passes through a pipe 20 to a nozzle 22 and discharges in a jet or spray 24, between the moving teeth 14 againstthe cutting face 26 of the coal deposit 28 at the is attached to a flexible point where the cutting teeth begin cutting coal. The application of water at this point enables the moving chain and cutting teeth to carry this water the entire length of the face being out, for example from points 30 to 32 in Fig. 1 thus thoroughly mixing the avater with the machine cuttings and coal ust.
By our improved method the machine 8 is advanced to the Working face and a cut 34 ismade to a given depth by means of the revolving chain. When the required longitudinal depth is reached the machine is moved transversely along the entire face thus undercutting the coal 28 as shown in Fig. 1 and Fig. 2.
During ,the entire cutting operation the spray or jet of water 24 under pressure is directed against the cutting face 26, thus wetting the cuttings and dust a3, cleaning the cutting face 26 and cooling the teeth 14 of the cutter chain. When desirable a number of nozzles 22 and connections may be placed on the water pipe 20 as shown in Fig. 4, thus allowing a number of sprays or jets to be used against any portion of the cutting face 26.
By utilizing our invention the wet cuttin s d may be loaded with the coal after it is shot, thus eliminating the expensive removal of the dry cuttings and dust before shooting. Heretofore it has been compulsory to remove all dry machine cuttings from the working place by loading-into tram cars before shooting, due to the dan er of the shooting agitating this dust so that itwas disseminated throughout the mine.
Various known types of mining machines canbe used and the water can be su lied to the working face in various ways w t out departing from our invention as defined in the appended-claims and the drawings and description are to be interpreted in an illustrative rather'than a limiting sense.
What we claimis:
1. The combination with a cutting machine having a power driven cutter chain and a guide bar therefor, of a water discharge nozzle located in a plane between the upper and lower faces of said bar so that its operation will not be interrupted by material fallin on the cutter bar.
2., The combination with a cutting machine having a power driven cutter chain provided with an upper and a lower set of outwardly diverging teeth, an-elongated U- shaped guide for said cutter chain and means located below the top of and between the sides of said U-shaped guide for -dis- 10 charging a jet of water between said diverging teeth.
In witness whereof, we have hereunto signed our names.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US613276A US1503870A (en) | 1923-01-17 | 1923-01-17 | Coal-dust eliminator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US613276A US1503870A (en) | 1923-01-17 | 1923-01-17 | Coal-dust eliminator |
Publications (1)
Publication Number | Publication Date |
---|---|
US1503870A true US1503870A (en) | 1924-08-05 |
Family
ID=24456620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US613276A Expired - Lifetime US1503870A (en) | 1923-01-17 | 1923-01-17 | Coal-dust eliminator |
Country Status (1)
Country | Link |
---|---|
US (1) | US1503870A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2749105A (en) * | 1949-07-05 | 1956-06-05 | Joy Mfg Co | Dust allaying means for continuous mining apparatus |
US4084855A (en) * | 1975-12-24 | 1978-04-18 | United States Steel Corporation | Water-driven air pumping and dust-suppressing apparatus |
US4119347A (en) * | 1976-02-21 | 1978-10-10 | Gewerkschaft Eisenhutte Westfalia | Coal plough having separately adjustable cutters and flexible fluid power and control lines therefor |
FR2389755A1 (en) * | 1977-05-06 | 1978-12-01 | Voest Ag | |
US20120019045A1 (en) * | 2010-07-22 | 2012-01-26 | Southern Philip W | Water spray system for continuous miner and method of use |
-
1923
- 1923-01-17 US US613276A patent/US1503870A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2749105A (en) * | 1949-07-05 | 1956-06-05 | Joy Mfg Co | Dust allaying means for continuous mining apparatus |
US4084855A (en) * | 1975-12-24 | 1978-04-18 | United States Steel Corporation | Water-driven air pumping and dust-suppressing apparatus |
US4119347A (en) * | 1976-02-21 | 1978-10-10 | Gewerkschaft Eisenhutte Westfalia | Coal plough having separately adjustable cutters and flexible fluid power and control lines therefor |
FR2389755A1 (en) * | 1977-05-06 | 1978-12-01 | Voest Ag | |
US4186971A (en) * | 1977-05-06 | 1980-02-05 | Vereinigte Osterreichische Eisen- Und Stahlwerke - Alpine Montan Aktiengesellschaft | Device for cooling cutting teeth of cutter heads of cutting machines |
US20120019045A1 (en) * | 2010-07-22 | 2012-01-26 | Southern Philip W | Water spray system for continuous miner and method of use |
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