CN2430543Y - Automatic spray dust reducer for under well working area longitudenal putting rack for coal mine - Google Patents
Automatic spray dust reducer for under well working area longitudenal putting rack for coal mine Download PDFInfo
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- CN2430543Y CN2430543Y CN 00213571 CN00213571U CN2430543Y CN 2430543 Y CN2430543 Y CN 2430543Y CN 00213571 CN00213571 CN 00213571 CN 00213571 U CN00213571 U CN 00213571U CN 2430543 Y CN2430543 Y CN 2430543Y
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- valve
- chamber
- control
- automatic control
- water
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Abstract
The utility model relates to an automatic spray dust reducer for longitudinal putting rack an under well working area for a coal mine. A pilot valve, a one-way valve for controlling water, a ball-shaped one-way valve and a valve body form automatic control valves F1, F2, a hydraulic pipe for a face guard plate and a hydraulic pipe for an upright post of a longitudinal putting rack are connected with the automatic control valve F1 to form a spray device before the rack, and a hydraulic pipe for an inserting plate and hydraulic pipe for a tail beam of the longitudinal putting rack are connected with the automatic control valve F2 to form a back part spray device. The spray device before the rack and the back part spray device of the rack and hydraulic pipelines for a face guard plate of an upper and a lower adjacent racks pass through an alternate valve and are mutually connected through liquid controlling pipes to form combined control devices of all racks of a whole working face.
Description
The application belongs to colliery mining face under mine dust guard pollution abatement equipment.
In the Coal Mining Equipment Complement of colliery, the coal dust amount is adopted greatly than general combining, and the serious harm underground labour is healthy, and has coal dust explosion hazard.So seek dust prevention targetedly is longwall top coal caving technology urgent problem.Coal dust source mainly is the coal-winning machine coal cutting, move to put in coal, the work plane transportation reprinting process behind frame, the frame and produce.Dust prevention on the work plane is spray dust prevention at present, the one, and atomizing de-dusting on coal-winning machine, the 2nd, depositing dust on support.Depositing dust mainly is that the sprinkle water and spray device is installed on support on the support.
At present on synthetical support atomizing de-dusting comparatively advanced be the multi-functional auto spraying valve and the device thereof of the development of mining area, Yanzhou." practice and the understanding of mining area, Yanzhou Coal Mining Equipment Complement " (Wu Zezhi chief editor, the Coal Industry Press published in 1998), a book is introduced for 250 pages.The structural principle of this valve is to have designed a pilot operated valve device, is sprayed by the interlock realization of support by the unlatching that the column oil cylinder hydraulic and the tail boom jack hydraulic of support are controlled spray valve jointly.Begin spraying when post moves frame when support falls, stop spraying when rising frame; Spray when tail boom contracted coal, tail boom stretches and stops spraying when stopping to put coal.Its water circuit system be on the total water control pipe by cross valve to this move frame spraying point, the control water pipe that comes from adjacent frame is by the coal discharge outlet spraying point of combination five-way valve to this, the hand spray when also realizing coal cutting by a nondominant hand movable valve.Through produce using proof, the deficiency of this device is: 1. water route complexity needs manually auxiliary control during coal cutting; 2. when support operation valve was in the neutral position, control valve loses fluid pressure interrupted spraying with regard to no longer spraying, and can not spray continuously, has only lasting feed flow could keep atomize; 3. dynamic impulsion and pulse displacement often take place in the pressure state that is in when long of the pilot operated valve device of control valve, and spool is fragile, the life-span is short, open ineffective and cause the support leakage; 4. the valve of the control water list in the control valve is the steel ball and spring structure, and, elasticity aging through water long period of soaking easy-to-rust reduces, and valve closing does not sternly cause and leaks.
The application's purpose is to overcome above-mentioned deficiency a kind of novel colliery mining face under mine synthetical support auto spraying device for reducing dust is provided.
The application's technical scheme is:
1. at first design an automatic spray control valve, the structure of this valve is that three chambers are arranged in the valve body; First chamber is guide's valve pocket sky, lining is arranged in the chamber and connect cover, and built-in guide's spool connects the cover through hole and is communicated with the spray water outlet; Second chamber has valve pocket, valve seat, built-in control water one-way valve core for the chamber of control break-make spray water in the chamber; The export-oriented spool of the control water list of the guide's spool of first chamber and second chamber promotes on an axis mutually; Second chamber is communicated with the spray water import; At the 3rd chamber two ends two ball-type one way valves are installed respectively, two ends have through hole to be communicated with first chamber and second chamber respectively; In the middle of the chamber is that shuttle type valve pocket is respectively inserted at shuttle type valve rod, valve rod two, and control liquid was imported and exported p about shuttle type valve pocket was communicated with respectively
1And p
2
The operating principle of this control valve is that the pressure control liquid that comes from support enters control valve left side import P
1Produce two kinds of actions, at first backing down the left side ball valve enters the pilot valve chamber and promotes pilot valve and move, promoting the fusiformis valve rod simultaneously moves and opens the right side ball valve and give the release of control water one-way valve earlier, the pilot valve masthead is opened control water one-way valve seat, is communicated with the water route and realizes the automatic water-supply spraying: when liquid is controlled from left side p in another road
2Mouth at first backs down right side ball valve seat when entering, and is communicated with the water route and enters control water chamber through valve hole, and the fusiformis valve rod backs down the left side ball valve and gives the pilot valve release simultaneously, and water-control valve moves and withstands valve seat and stop to supply water.
2. be single control auto spraying device for reducing dust that each support is formed at the center with above-mentioned automatic control valve.
This device is established two automatic control valve F
1, F
2, spraying before the control frame, a control rear portion coal discharge outlet spraying.
2.1 the composition of atomization mechanism is before the frame: on the fluid pressure line that the control of support face guard jack is stretched out, draw control liquid pipe y
2Be connected on automatic control valve F
1P
2On the mouth, on the fluid pressure line that the control column falls, draw control liquid pipe y
1Be connected on automatic control valve F
1P
2On the mouth, automatic control valve F
1Water inlet insert feed pipe, delivery port is connected on shower nozzle before the frame by water pipe.Begin spraying when column falls, stop spraying when face guard stretches out.
2.2 the composition of rear portion atomization mechanism is: on the fluid pressure line that the control of support plate jack is stretched out, draw control liquid pipe y4 and be connected on automatic control valve F
2P
2On the mouth, on the fluid pressure line of the withdrawal of controlling the tail boom jack, draw control liquid pipe y
3Be connected on automatic control valve F
2P
2On the mouth, same F
2Entery and delivery port insert feed pipe and rear portion fog-spray nozzle respectively.Begin spraying during the withdrawal of tail boom jack, the plate jack stops spraying when stretching out.
The advantage of above-mentioned single action mode is to spray uninterruptedly whole moving in frame and the caving coal process.
3. atomization mechanism and rear portion atomization mechanism interconnect composition associating automatic sprayer by controlling liquid pipeline and replacing valve Jt before the frame.
The structure of device is: go up adjacent frame and the face guard of the adjacent frame down hydraulic tube that contracts and stretch hydraulic tube with this face guard and be connected in parallel on this automatic control valve F by replacing valve Jt
1P
2Mouthful; Go up adjacent frame F
1P
2Mouth, following adjacent frame F
1P
1Mouthful and the contract hydraulic tube that falls with column of this face guard be connected in parallel on this F by valve Jt alternately
1P
1Mouthful; The hydraulic tube that this column falls, tail boom falls, plate contracts is by valve J alternately
tBe connected in parallel on this automatic control valve F
2P
1Mouthful.This face guard is stretched the hydraulic tube of stretching with plate and is passed through alternately valve J
tBe connected in parallel on F
2P
2Mouthful.
So can open simultaneously when falling post before the frame with frame after spray valve pounce on dirt timely and effectively; Spray valve before and after when face guard stretches out, closing simultaneously, and the action of tail boom can only be controlled the action of rear portion spray valve; Tail boom falls or plate when withdrawal opened spray valve, closes spray valve when face guard and plate stretch out.
The application's good effect is: 1, automatic control valve structurally avoided pilot operated valve device in the valve impact and and pulsation, spool is opened flexibly, the life-span is long, no leakage; Cancelled the spring steel ball structure of water-control valve in the valve, do not damaged, closed tight, water-tight.2. work plane only supplies water with a water pipe, and the water route is simple, 3. because this action can be controlled adjacent frame, so the depositing dust of the place ahead cutting coal machine is no longer with manually control.4. realized the uninterrupted spraying when moving frame and the operation of caving coal, good dustproof effect.
The application's embodiment such as Fig. 1, Fig. 2, shown in Figure 3.Fig. 1 is the sectional drawing of the elevation of valve.Fig. 2 is the atomization mechanism figure of every support when controlling separately.Fig. 3 is the atomization mechanism figures of all supports of fully mechanized coal face when jointly controlling.
Marginal data:
1. end cap; 2, valve body; 3. guide's spool; 4. lining; 5. connect cover; 6, valve seat; 7. back-up ring; 8. plain cushion; 9. screw; 10. valve pocket; 11. water-control valve core; 12. gland; 13. valve gap; 14. ball valve; 15. fusiformis valve seat; 16. fusiformis valve rod; 17. filled media; 18. fusiformis valve pocket; 19. spring; 20. pilot valve chamber; 21. the chamber of control spray water break-make; 22. pilot pressure control chamber; 23-face guard jack; The 24-bracket upright post; 25-tail boom jack; 26-plate jack; The 27-feed pipe; Fog-spray nozzle before the 28-frame; 29-rear portion fog-spray nozzle; The last adjacent frame face guard jack of 30-; Adjacent frame face guard jack under the 31-; 32,33,34,35 1 control liquid pipes; Use automatic control valve F1 before the 36-frame; Use automatic control valve F2 behind the 37-frame; The last adjacent frame automatic control valve F of 38-
1Adjacent frame automatic control valve F under the 39-
1
The structure of automatic control valve is at first described according to Fig. 1.
Pilot valve chamber (20) is arranged, the chamber (21) of control spray water break-make, pilot pressure control chamber (22) in valve body (2); Lining (4) is arranged in chamber (20) successively and connect cover (5), valve seat (6), back-up ring (7), built-in guide's spool (3) connects cover (5) through hole and is communicated with chamber (20) end cap (1) shutoff with spray water outlet W0; Valve pocket (10), built-in spool (11) are arranged in chamber sky (21), and (11) end is with the fixing plain cushion (8) of screw (9), and chamber (21) communicates with spray water import W1, and with gland (12) shutoff; Two ends are installed ball valve (14), spring (19), shuttle type valve seat (15) and shuttle type valve pocket (18) respectively in chamber (22), the centre is a shuttle type valve rod (16), (16) in the annular groove of middle part filled media (17) is arranged, chamber (22) two ends are with valve gap (13) shutoff, two shuttle type valve pocket through holes respectively with the inlet P of control liquid
1, P
2Be communicated with.
According to Fig. 1 its operating principle is described.
When opening the auto spraying valve, control liquid, by control liquid mouth P from the pressure that support comes
1Enter the left chamber of pilot pressure control chamber (22), produce two kinds of function actions.At first, pressure liquid backs down left side one way valve steel ball (14), and pressure liquid enters pilot pressure control chamber through valve hole, and pressure liquid promotes guide's spool (3) and moves.Simultaneously, pressure liquid promotes school shape valve rod (16) and moves, and opens right side ball-type one way valve (14), gives the release of control water one-way valve (11), returns to rush down and constitutes the loop for being latched in control liquid in the control water one-way valve airtight chamber.Guide's spool (3) backs down control water one-way valve (11), and spray water enters control break-make spray water chamber through water inlet W1, through valve seat (6), connects cover (5) and discharges through delivery port W0 with the through hole of valve body again, forms the path of water.When closing spraying, control liquid is from P
2Mouth enters and produces and above-mentioned opposite action, and water-control valve core (11) compresses valve seat (6), closes the water route.
The structure of the atomization mechanism when describing every support and control separately according to Fig. 2.Spraying is to use automatic control valve F before frame before the frame
1(36) P
1, P
2Interface is with on the hydraulic tube that control liquid pipe (32,33) connects on the hydraulic tube that support face guard jack (23) stretches out respectively and column (24) falls; Valve F
1(36) water-in and water-out outlet W
1, W
0Connect the preceding shower nozzle (28) of feed pipe (27) and frame respectively.Spraying is to use automatic control valve F behind frame behind the frame
2(37) P
1, P
2On the hydraulic tube that interface connects on the hydraulic tube of support tail boom jack (25) withdrawal respectively with control liquid pipe (34), (35) and plate jack (26) stretches out; Valve F
2(37) entery and delivery port W1, W0 connects feed pipe (27) and rear portion shower nozzle (29) respectively.
According to Fig. 3 the structure that all supports of fully mechanized coal face jointly control the device in when spraying is described.Combined Control Unit is on the basis of the independent control device of Fig. 2, by using 5 alternately valve J
tInterconnect composition with hydraulic tube.Its structure and principle are: last adjacent frame wall supporting jack (30) contracts and following adjacent frame wall supporting jack (31) contracts and this face guard jack (23) is stretched by replacing valve J
tThe P2 mouth of adjacent frame valve F1 (38) on the Parallel Control; This face guard jack (23) contracts and column (24) falls by replacing valve J
tAdjacent frame valve F under the Parallel Control
1(39) P
1Mouthful; Column (24) falls with tail boom jack (25) and falls, plate jack (26) is stretched by replacing valve J
tAlternately control this valve F
2(37) P
2Mouthful; This valve of control F falls in column (24)
1(36) P
1Mouth is also by alternately alternately control valve F falls in valve Jt and tail boom jack (25)
2(37) P
1Mouthful.This face guard jack (23) contracts to control simultaneously and goes up adjacent frame valve F
1(38) P
2Mouthful; This face guard jack (23) is stretched the adjacent frame valve F down of control simultaneously
1(39) P1 mouth.
Claims (1)
1 one kinds of colliery mining face under mine synthetical support auto spraying device for reducing dust is characterized in that:
1.1 it comprises automatic spray control valve, the structure of valve is: three chambers are arranged in the valve body; First chamber is the pilot valve chamber, lining is arranged in the sky of chamber and connect cover, and built-in guide's spool connects the cover through hole and is communicated with the spray water outlet; Second chamber is the chamber of control break-make spray water, valve pocket, valve seat is arranged, built-in control water one-way valve core in the chamber; The control water one-way valve core of the guide's spool of first chamber and the second chamber sky promotes on an axis mutually; Second chamber is communicated with the spray water import; At the 3rd chamber two ends two ball-type one way valves are installed respectively, two ends have through hole to be communicated with first chamber and second chamber respectively; In the middle of the chamber is that shuttle type valve pocket is respectively inserted at shuttle type valve rod, valve rod two, control liquid import p about shuttle type valve pocket is communicated with respectively
1And p
2
1.2 with above-mentioned automatic control valve is single control auto spraying device for reducing dust that each support is formed at the center, this device is established two automatic control valve F
1, F
2, F
1Form the preceding atomization mechanism of frame, F
2Form rear portion coal discharge outlet atomization mechanism;
1.2.1 the composition of atomization mechanism is before the frame: on the fluid pressure line that the control of support face guard jack is stretched out, draw control liquid pipe y
2Be connected on automatic control valve F
1P
2On the mouth, on the fluid pressure line that the control column falls, draw control liquid pipe y
1Be connected on automatic control valve F
1P
2On the mouth, automatic control valve F
1Water inlet insert feed pipe, delivery port is connected on the water pipe of fog-spray nozzle before the frame;
1.2.2 the composition of rear portion atomization mechanism is: on the fluid pressure line that the control of support plate jack is stretched out, draw control liquid pipe y4 and be connected on automatic control valve F
2P
2On the mouth, on the fluid pressure line of the withdrawal of controlling the tail boom jack, draw control liquid pipe y
3Be connected on automatic control valve F
2P
1On the mouth, same F
2Entery and delivery port insert respectively on the water pipe of feed pipe and rear portion fog-spray nozzle;
1.3 atomization mechanism and rear portion atomization mechanism are by controlling liquid pipeline and replacing valve J before the frame
tInterconnect to form and jointly control automatic sprayer; The structure of device is: go up adjacent frame and the face guard of the adjacent frame down hydraulic tube that contracts and stretch hydraulic tube with this face guard and be connected in parallel on this automatic control valve F by replacing valve Jt
1P
2Mouthful: go up adjacent frame F
1P
2Mouth, following adjacent frame F
1P
1Mouthful and the contract hydraulic tube that falls with column of this face guard be connected in parallel on this F by valve Jt alternately
1P
1Mouthful; The hydraulic tube that this column falls, tail boom falls, plate contracts is connected in parallel on this automatic control valve F by valve Jt alternately
2P
1Mouthful, this face guard is stretched the hydraulic tube of stretching with plate and is connected in parallel on F by replacing valve Jt
2P
2Mouthful.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00213571 CN2430543Y (en) | 2000-02-20 | 2000-02-20 | Automatic spray dust reducer for under well working area longitudenal putting rack for coal mine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 00213571 CN2430543Y (en) | 2000-02-20 | 2000-02-20 | Automatic spray dust reducer for under well working area longitudenal putting rack for coal mine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2430543Y true CN2430543Y (en) | 2001-05-16 |
Family
ID=33579833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 00213571 Expired - Fee Related CN2430543Y (en) | 2000-02-20 | 2000-02-20 | Automatic spray dust reducer for under well working area longitudenal putting rack for coal mine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2430543Y (en) |
-
2000
- 2000-02-20 CN CN 00213571 patent/CN2430543Y/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |