CN209302426U - A kind of ore crushing dust-extraction unit - Google Patents

Abstract

The utility model discloses a kind of ores to crush dust-extraction unit, mainly by pedestal, transmission device, it is fixed on pedestal and is set to the dirt pocket on transmission device top, the crusher and water injector being arranged in dirt pocket, the inlet port and outlet port of dirt pocket both ends setting, the catch basin of transmission device lower part setting, foul water tank and filtered water tank composition, the middle part horizontal direction of dirt pocket is provided with blocker plate, through-hole is evenly equipped in blocker plate, dirt pocket is vertically equipped with baffle, there are certain gaps between blocker plate and baffle, dirt pocket is divided into No.1 dedusting chamber by blocker plate and baffle, No. two dedusting chambers and No. three dedusting chambers, No. two dedusting chambers set and are recycled back to air hose, No. three dedusting chambers set air entraining pipe；3-stage dust-removal mode that the dust-extraction unit is combined using enclosed dedusting, wet dedusting, it can be achieved that the high-recovery of dust when ore crushes, it is low dissipate excessive rate, the operating environment at scene is crushed so as to improve ore, improves Health Status For Workers Exposed.

Description

A kind of ore crushing dust-extraction unit

Technical field

The utility model belongs to mining technical equipment field, and in particular to a kind of ore crushing dust-extraction unit.

Background technique

It in the recovery process in mine, the operation such as needs for ore to be crushed, refine, screening, and being wherein crushed undoubtedly It is the first step of entire process, ore only just can be carried out subsequent Refinement operation after crushing, therefore shattering process seems outstanding It is important.

A large amount of dusts will be generated during ore crushes and to crush the process of charging, not being pocessed will seriously endanger Operation field personnel health, contaminated site operating environment, falling ash can also cause the operating of other mechanical equipments in place to be blocked, this Outside, must remove dust before entering next process could improve the purity of ore.

Summary of the invention

The purpose of this utility model is intended to provide the ore crushing dedusting dress that a kind of dust recovery rate is high, scattered excessive dust is less It sets.

To achieve the goals above, the technical scheme adopted by the utility model is that:

A kind of ore crushing dust-extraction unit, including pedestal, transmission device, crusher, inlet port and outlet port；

The transmission device is set on pedestal, and feed inlet is set on pedestal and close to transmission device input terminal, charging Inclined slideway is equipped between mouth and transmission device, crusher is set on pedestal and close to transmission device output end, discharge port It is set at crusher discharge end；It is additionally provided with catch basin, water injector, filtered water tank and foul water tank；

The catch basin is set to transmission device lower part, and catch basin with foul water tank by being connected to communicating pipe；

The water injector is fixed on pedestal and is connected to by water supplying pipe with filtered water tank, and water pump is arranged on water supplying pipe；Spray Water installations include No.1 water spray portion and No. two water spray portions, and No.1 water spray portion includes the water spray for being connected to water supplying pipe with No. two water spray portions Opening and closing element is provided on the sparge pipe in the multiple groups spray head being arranged on pipe and sparge pipe, No.1 water spray portion and No. two water spray portions；And And No.1 water spray portion is set to the top of transmission device, No. two water spray portions are set to the top of slideway.

The principles of the present invention are: ore is through on feed inlet to transmission device, ore drop to transmission device and raises Dust on gush, carry out wet dedusting by being arranged in No. two water spray portions of top first, remove most of dust, wet process removal Dust not in time is collected by No. two dust gathering arresters and enters backwind tube；The dust that ore generates during crushing concentrates on transmitting At this moment device output end can open No.1 water spray portion and carry out wet dedusting, wet process is difficult to the dust removed largely can be by one Air entraining pipe is collected and entered to the No.1 dust gathering arrester arranged above number water spray portion, and No. two water spray portions two are influxed in sub-fraction and are removed Dust hood recycling, final wet process, which removes too late dust and is directed into foul water tank by backwind tube and air entraining pipe, carries out final removal, To realize the high efficiente callback of dust.

The utility model has the beneficial effects that: the dust-extraction unit can remove stone using the second level wet dedusting of close arrangement The most of dust generated is removed stage makeup and costume and crushed to material, and the dust above gushed passes through No.1 dust gathering arrester again and No. two dust gathering arresters are collected, finally It imports foul water tank to be dusted, wet dedusting has equipment investment small, and the additional foul water tank water of second level wet dedusting overflows dedusting, raising Dust removal efficiency, return period is also shorter, and the low ash that falls for dissipating excessive rate and being significantly reduced remaining production equipment of dust reduces equipment Cleaning and maintenance cost ensure that the health of operation field personnel to optimize the operating environment that mine rock material crushes scene.

Further, above-mentioned ore crushes dust-extraction unit, is equipped with dust gathering arrester, which includes No.1 dust gathering arrester, No. two Dust gathering arrester and gas collecting tube, wherein No.1 dust gathering arrester is arranged in above No.1 water spray portion, and No. two dust gathering arresters are arranged in No. two water spray portions Top；The No.1 dust gathering arrester and No. two dust gathering arresters are connected to by gas collecting tube with foul water tank, and negative pressure wind is equipped in gas collecting tube pipeline Machine.

Further, above-mentioned ore crushes dust-extraction unit, is additionally provided with dirt pocket, the dirt pocket is obliquely installed in pedestal On, the middle part horizontal direction of dirt pocket is provided with blocker plate, and through-hole is evenly equipped in the blocker plate, and dirt pocket is vertically equipped with baffle, There are certain gap, the blocker plate and baffles between blocker plate and baffle is divided into No.1 dedusting chamber, No. two dedustings for dirt pocket Chamber and No. three dedusting chambers, the No.1 dedusting chamber, No. two dedusting chambers and No. three dedusting chambers are connected to by gas collecting tube with foul water tank；Institute Stating gas collecting tube includes air entraining pipe and backwind tube, and described backwind tube one end is connected to No. three dedusting chambers, the other end and No.1 dedusting chamber Or No. two dedusting chamber connections；Described air entraining pipe one end is connected to No. two dedusting chambers, and the other end is connected to foul water tank；The No.1 spray Water portion is arranged in blocker plate lower part, and No. two water spray portions are set at the top of dirt pocket, the blocker plate and pedestal horizontal component Angle be 15-45 °.

Further, above-mentioned ore crushes dust-extraction unit, is additionally provided with deduster between the air entraining pipe and foul water tank.

Further, above-mentioned ore crushes dust-extraction unit, and the deduster is hydrofilter, which includes Air inlet pipe, air guide device, surge slot, mud ditch, liquor box, check valve, exhaust pipe, blower, mud valve, liquid injection pipe, spill box；Into Tracheae is located at air guide device top, and the top of air guide device is equipped with exhaust pipe and blower, and the lower part of air guide device is connected with surge slot, agitates slot Lower part be connected with mud ditch, air guide device lower part is connected with surge slot and mud ditch, liquor box is placed in agitate slot between, the surge slot Lower part, which is equipped with, holds gas tank, and surge slot protrudes into the appearance gas tank, and the check valve, which is set to, to be held between gas tank and liquor box；Mud ditch Side is connected with spill box, and spill box is equipped with the cross over pipe of connection exhaust pipe, is equipped on the side wall of mud ditch horizontally disposed The bottom of liquid injection pipe, liquid injection pipe and the foul water tank connection, mud ditch is equipped with mud valve.

Further, above-mentioned ore crushes dust-extraction unit, is connected with close to the surge slot of check valve by bipass discouraged Pipe, the gas outlet other end are passed through solution upper box part, and gas outlet is equipped with opening and closing valve.

Further, above-mentioned ore crushes dust-extraction unit, and buffering is also successively arranged between the hydrofilter and filtered water tank Water tank and water tank with strainer.

Further, above-mentioned ore crushes dust-extraction unit, and No. two dedusting chambers and No. three intracavitary tops of dedusting are equipped with Flue gas inductor, is equipped with two PLC controllers outside dirt pocket, the intracavitary flue gas inductor of No. two dedustings by PLC controller with Negative-pressure air fan electrical connection in bleed air hose, the flue gas inductor of No. three dedusting chambers pass through another PLC controller and return air Negative-pressure air fan electrical connection in pipe.

Detailed description of the invention

Fig. 1 is the cross-sectional view that 1 ore of the utility model embodiment crushes dust-extraction unit；

Fig. 2 is the top view of the utility model embodiment transmission device；

Fig. 3 is the cross-sectional view that 3 ore of the utility model embodiment crushes dust-extraction unit；

Fig. 4 is the top view of the utility model embodiment blocker plate；

Fig. 5 is the cross-sectional view of the utility model embodiment hydrofilter.

Specific embodiment

Below by the further details of explanation of specific embodiment:

Appended drawing reference in Figure of description includes: slideway A1, pedestal 1, transmission device 2, crusher 3, feed inlet 4, removes Dirt room 5, catch basin 6, water injector 7, foul water tank 8, water supplying pipe 9, buffer tank 10, water tank with strainer 11, filtered water tank 12, water pump 13, blocker plate 14, baffle 15, gas collecting tube 17, air entraining pipe 17a, backwind tube 17b, deduster 18, negative-pressure air fan 19, No.1 dust Cover 20, opening and closing element 21, spray head 22, flue gas inductor 23,24, No. two dust gathering arresters 25 of PLC controller, No.1 dedusting chamber 51, two 52, No. three dedusting chambers 53 of dedusting chamber, water spray portion 72, No.1 water spray portion 71, two, sparge pipe 73, discharge port 74, through-hole 141, into Tracheae 181, air guide device 182, surge slot 183, container case 184, mud ditch 185, blower 186, exhaust pipe 187, liquid injection pipe 188, Spill box 189, check valve 191, liquor box 192, mud valve 193, cross over pipe 194, gas outlet 195, escape pipe 196.

Embodiment 1: referring to Figures 1 and 2

A kind of ore crushing dust-extraction unit, mainly by pedestal 1, transmission device 2, crusher 3, feed inlet 4 and discharge port 74 Composition；

Transmission device 2 is set on pedestal 1, and feed inlet 4 is set on pedestal 1 and close to 2 input terminal of transmission device, charging Inclined slideway A1 is equipped between mouth 4 and transmission device 2, crusher 3 is set on pedestal 1 and close 2 output end of transmission device, Discharge port 74 is set at 3 discharge end of crusher；It is additionally provided with catch basin 6, water injector 7, filtered water tank 12 and foul water tank 8；

The catch basin 6 is set to 2 lower part of transmission device, and catch basin 6 with foul water tank 8 by being connected to communicating pipe；

The water injector 7 is fixed on pedestal 1 and is connected to by water supplying pipe 9 with filtered water tank 12, and water is arranged on water supplying pipe 9 Pump 13；Water injector 7 includes No.1 water spray portion 71 and No. two water spray portions 72, and No.1 water spray portion 71 and No. two water spray portions 72 include It is connected to the multiple groups spray head 22 being arranged on the sparge pipe 73 and sparge pipe 73 of water supplying pipe 9, No.1 water spray portion 71 and No. two water spray portions 72 Sparge pipe 73 on be provided with opening and closing element 21；Also, No.1 water spray portion 71 is set to the top of transmission device 2, No. two water sprays Portion 72 is set to the top of slideway A1.

Ore is conveyed through feed inlet 4, enters transmission device 2 by slideway A1, ore drop to the powder that transmission device 2 raises It is gushed on dirt, carries out wet dedusting by being arranged in No. two water spray portions 72 of top first, remove most of dust, ore crushed The dust generated in journey concentrates on 2 output end of transmission device, at this moment can open No.1 water spray portion 71 and carry out wet dedusting, due to powder The dust that communicated device 2 raises up when broken gradually decreases, and therefore, closes No. two water spray portions 72 in crushing；This set side Formula has accomplished effective dedusting, can also reduce wet process water consumption, to reduce dedusting cost.

Embodiment 2: referring to Figures 1 and 2

Compared with Example 1, difference is to be additionally provided with dust gathering arrester, which includes 20, No. two dust gathering arresters of No.1 dust gathering arrester 25 and gas collecting tube 17, wherein No.1 dust gathering arrester 20 is arranged in 71 top of No.1 water spray portion, and No. two dust gathering arresters 25 are arranged in No. two sprays 72 top of water portion；The No.1 dust gathering arrester 20 and No. two dust gathering arresters 25 are connected to by gas collecting tube 17 with foul water tank 8, and gas collecting tube 17 is managed Negative-pressure air fan 19 is equipped in road.

The dust of wet process removal not in time is collected by No. two dust gathering arresters 25 and enters backwind tube 17b；Ore crushing process The dust of middle generation concentrates on 2 output end of transmission device, at this moment can open No.1 water spray portion 71 and carry out wet dedusting, wet process is difficult to Air entraining pipe 17a can largely be collected by the No.1 dust gathering arrester 20 arranged above No.1 water spray portion 71 and be entered to the dust of removal, It influxs No. two water spray portions 72 in sub-fraction to recycle through No. two dust excluding hoods 25, final wet process removes too late dust and passes through gas collecting tube 17, which are directed into foul water tank 8, carries out final removal, to realize the high efficiente callback of dust.

Embodiment 3: referring to Fig. 3 and Fig. 4

Compared with Example 1, difference is that crush dust-extraction unit further include dirt pocket 5 to the ore, dirt pocket 5 be obliquely installed in On pedestal 1, the middle part horizontal direction of dirt pocket 5 is provided with blocker plate 14, and through-hole 141 is evenly equipped in blocker plate 14, and dirt pocket 5 is vertical Equipped with baffle 15, between blocker plate 14 and baffle 15, there are certain gap, blocker plate 14 and baffles 15 to divide dirt pocket 5 for No.1 51, No. two dedusting chambers 52 of dedusting chamber and No. three dedusting chambers 53；51, No. two dedusting chambers 52 of the No.1 dedusting chamber and No. three dedusting chambers 53 are connected to by gas collecting tube 17 with foul water tank 8, and the one end backwind tube 17b is connected to No. three dedusting chambers 53, the other end and No.1 dedusting Chamber 51 or No. two dedusting chambers 52 are connected to, and gas collecting tube 17 includes air entraining pipe 17a and backwind tube 17b；It is removed with No. two the one end air entraining pipe 17a Dirt chamber 52 is connected to, and the other end is connected to foul water tank 8；The setting of No.1 water spray portion 71 is in 14 lower part of blocker plate, No. two sprays Water portion 72 is set to 5 top of dirt pocket；The angle of blocker plate 14 and 1 horizontal component of pedestal is 15-45 °, blocker plate 14 and pedestal 1 The too small top separated space for influencing No. two dedusting chambers 52 and No. three dedusting chambers 53 of the angle of horizontal component, does not have 3-stage dust-removal Purpose, angle is excessive and will increase the investment of 5 outer wall of dirt pocket, uneconomical, thus blocker plate 14 and 1 horizontal component of pedestal Angle can balance the two at 15-45 °.

Ore is through on feed inlet to transmission device, the dirt pocket on transmission device is dust closed, that ore generates Wet dedusting is carried out by the No.1 water spray portion on No.1 dedusting chamber top, removes most of dust, when Dust Capacity is larger, No.1 Dedusting chamber handles too late dust by the through-hole overflow in blocker plate to No. two dedusting chambers and No. three dedusting chambers, and dirt pocket is It is obliquely installed, so when dust is full of No. two dedusting chambers, through No. two water spray portion wet-treatings, handles too late dust and pass through back Negative-pressure air fan in air hose, which is pumped, returns again to No.1 dedusting chamber or No. two dedusting chambers, then carries out wet dedusting, and overflow is removed to No. three The dust of dirt top of chamber is pumped by the negative-pressure air fan in air entraining pipe to foul water tank, to accomplish the high efficiente callback of dust.

The dust-extraction unit work step is as follows:

(1) ore is through on feed inlet 4 to transmission device 2, the dirt pocket 5 on transmission device 2 be it is closed, ore is being led Enter the dust that transmission device 2 and transmission process generate to remove by the progress wet process of No.1 water spray portion 71 on 51 top of No.1 dedusting chamber Dirt removes most of dust.

(2) ore is broken through crusher 3, and the processing of No.1 dedusting chamber 51 generated in ore reduction and transportation work is not in time Dust by 141 overflow of through-hole in blocker plate 14 to No. two dedusting chambers 52 and No. three dedusting chambers 53, and dirt pocket 5 is inclination Setting, through No. two 72 wet-treatings of water spray portion, handles too late dust and passes through back so when dust is full of No. two dedusting chambers 52 Negative-pressure air fan 19 in air hose 17b, which is pumped, returns again to No.1 dedusting chamber 51 or No. two dedusting chambers 52, then carries out wet dedusting.

(3) dust at overflow to No. three 53 tops of dedusting chamber is pumped by the negative-pressure air fan 19 in air entraining pipe 17a to sewage Case 8 realizes the high efficiente callback of ore dust, improves work to accomplish wet dedusting of the excessive dust outside dirt pocket 5 Make site work environment.

Embodiment 4: referring to Fig. 3 and Fig. 4

Compared with embodiment 2 or embodiment 3, the program main distinction is: being additionally provided between air entraining pipe 17a and foul water tank 8 The removal rate of excessive dust can be improved in deduster 18, deduster 18, is also convenient for the dust of periodic cleaning collection.

Embodiment 5: referring to Fig. 5

Compared with Example 4, the program main distinction is: the deduster 18 is hydrofilter, the wet dedusting Device include air inlet pipe 181, air guide device 182, surge slot 183, mud ditch 185, liquor box 192, check valve 191, exhaust pipe 187, Blower 186, mud valve 193, liquid injection pipe 188, spill box 189；Air inlet pipe 181 is located at 182 top of air guide device, air guide device 182 Top is equipped with exhaust pipe 187 and blower 186, and the lower part of air guide device 182 is connected with surge slot 183, and the lower part of surge slot 183 is connected with mud Stock tank 185,182 lower part of air guide device are connected with surge slot 183 and mud ditch 185, and liquor box 192 is placed between surge slot 183, described It agitates 183 lower part of slot and is equipped with and hold gas tank 184, surge slot 183 protrudes into the appearance gas tank 184, and the check valve 191 is set to appearance gas Between case 184 and liquor box 192；The side of mud ditch 185 is connected with spill box 189, and spill box 189 is equipped with connection exhaust pipe 187 Cross over pipe 194, horizontally disposed liquid injection pipe 188, liquid injection pipe 188 and the foul water tank 8 are equipped on the side wall of mud ditch 185 The bottom of connection, mud ditch 185 is equipped with mud valve 193.

The hydrofilter course of work are as follows: dusty gas enters air inlet pipe 181 under the action of negative pressure, later by air guide device 182 are evenly distributed in surge slot 183, and in surge slot 183, violent effect occurs for gas-liquid-solid three-phase, and part grit enters Hold in 184 liquid of gas tank, remaining grit discharge holds gas tank 184 as air-flow continues to move, and brings liquor box by escape pipe 196 In 192, at the same the liquid taken up by air-flow under the action of inertia force and gas pressure along open 192 outlet chamber of liquor box to Upper movement.Final secondary air is drawn through exhaust pipe 187 through blower 186 and is discharged, and dust settles solidifying in 188 liquid of liquor box It is poly-, collect in mud ditch 185, mud deposition can be discharged when more by mud valve 193, and wind turbine layout exhaust pipe 187 is vented Place, so that entire dust removal process is completed under subnormal ambient.And when surge 183 air pressure of slot is higher, gas is difficult to be quickly dissolved in appearance When 184 liquid of gas tank, balance gas can be discharged into liquor box by escape pipe.

Embodiment 6: referring to Fig. 5

Compared with Example 5, the program main distinction is: the surge slot 183 close to check valve 191 is connected by bipass It is connected to gas outlet 195,195 other end of gas outlet is passed through 192 top of liquor box, and gas outlet 195 is equipped with opening and closing valve；When sharp When swinging air pressure equalisation in slot 183, the opening and closing valve on gas outlet 195 is closed, band powder gas is allowed to maximize liquid in pass into solution case, To improve band powder dust from gas treating capacity, mitigate subsequent processing intensity, when agitating air pressure raising in slot 183, opening is let out Opening and closing valve on tracheae 195 can be discharged by gas outlet 195 and be agitated when band powder gas maximizes liquid in pass into solution case Pressure in slot 183, the gas of discharge enter next stage dedusting, to improve system dust removing safety.

Embodiment 7: referring to Fig. 3 and Fig. 4

Compared with Example 6, the program main distinction is: being also successively arranged buffered water between foul water tank 8 and filtered water tank 12 Case 10 and water tank with strainer 11, the water that buffer tank 10 can excessively between foul water tank 8 and water tank with strainer 11, can also do primary sedimentation makes With so that wet process is used with the recyclable few addition of water.

Embodiment 8: referring to Fig. 3 and Fig. 4

Compared with Example 3, the program main distinction is that No. two dedusting chambers 52 and No. three 53 internal upper parts of dedusting chamber are equal Equipped with flue gas inductor 23, two PLC controllers 24 are equipped with outside dirt pocket 5, the flue gas inductor 23 in No. two dedusting chambers 52 is logical It crosses PLC controller 24 to be electrically connected with the negative-pressure air fan 19 in air entraining pipe 17a, the flue gas inductor 23 of No. three dedusting chambers 53 is logical Another PLC controller 24 is crossed to be electrically connected with the negative-pressure air fan 19 in backwind tube 17b；No. two dedusting chambers 52 and No. three dedusting chambers 53 connect Enter flue gas inductor 23, the Gas Parameters access PLC that flue gas inductor 23 receives is controlled to drive backwind tube 17b and air entraining pipe Negative-pressure air fan 19 in 17a reduces unnecessary energy waste to can realize that the optimization of resource uses.

Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence The effect and patent practicability that the utility model is implemented.This application claims protection scope should be with the content of its claim Subject to, the records such as specific embodiment in specification can be used for explaining the content of claim.

Claims (8)

1. a kind of ore crushes dust-extraction unit, including pedestal (1), transmission device (2), crusher (3), feed inlet (4) and discharging Mouth (74)；

The transmission device (2) is set on pedestal (1), and feed inlet (4) is set on pedestal (1) and close to transmission device (2) Input terminal, is equipped with inclined slideway (A1) between feed inlet (4) and transmission device (2), and crusher (3) is set on pedestal (1) And close to transmission device (2) output end, discharge port (74) is set at crusher (3) discharge end；It is characterized by: being additionally provided with collection Sink (6), water injector (7), filtered water tank (12) and foul water tank (8)；

The catch basin (6) is set to transmission device (2) lower part, and catch basin (6) with foul water tank (8) by being connected to communicating pipe；

The water injector (7) is fixed on pedestal (1) and is connected to by water supplying pipe (9) with filtered water tank (12), on water supplying pipe (9) It is arranged water pump (13)；Water injector (7) includes No.1 water spray portion (71) and No. two water spray portions (72), No.1 water spray portion (71) and two Number water spray portion (72) includes the multiple groups spray head (22) that is arranged on the sparge pipe (73) and sparge pipe (73) of connection water supplying pipe (9), Opening and closing element (21) are provided on the sparge pipe (73) of No.1 water spray portion (71) and No. two water spray portions (72)；Also, No.1 is sprayed water Portion (71) is set to the top of transmission device (2), and No. two water spray portions (72) are set to the top of slideway (A1).

2. ore according to claim 1 crushes dust-extraction unit, it is characterised in that: be additionally provided with dust gathering arrester, the dust gathering arrester packet Include No.1 dust gathering arrester (20), No. two dust gathering arresters (25) and gas collecting tube (17), wherein No.1 dust gathering arrester (20) is arranged in No.1 water spray Above portion (71), No. two dust gathering arresters (25) are arranged in above No. two water spray portions (72)；The No.1 dust gathering arrester (20) and No. two collection Dust hood (25) is connected to by gas collecting tube (17) with foul water tank (8), is equipped with negative-pressure air fan (19) in gas collecting tube (17) pipeline.

3. ore according to claim 1 crushes dust-extraction unit, it is characterised in that: be additionally provided with dirt pocket (5), the dedusting Room (5), which is obliquely installed, sets the top with No. two water spray portions (72) in No.1 water spray portion (71), and the middle part horizontal direction of dirt pocket (5) is set It is equipped with blocker plate (14), is densely covered with through-hole (141) on the blocker plate (14), dirt pocket (5) is vertically equipped with baffle (15), retardance There are certain gap between plate (14) and baffle (15), dirt pocket (5) is divided into No.1 by the blocker plate (14) and baffle (15) Dedusting chamber (51), No. two dedusting chambers (52) and No. three dedusting chambers (53)；The No.1 dedusting chamber (51), No. two dedusting chambers (52) and No. three dedusting chambers (53) are connected to by gas collecting tube (17) with foul water tank (8), and the gas collecting tube (17) includes air entraining pipe (17a) and returns Air hose (17b), described backwind tube one end (17b) are connected to No. three dedusting chambers (53), the other end and No.1 dedusting chamber (51) or two The connection of number dedusting chamber (52)；Described air entraining pipe one end (17a) is connected to No. two dedusting chambers (52), and the other end and foul water tank (8) are even It is logical；No.1 water spray portion (71) is arranged in blocker plate (14) lower part, and No. two water spray portions (72) are set to dirt pocket (5) top The angle of portion, the blocker plate (14) and pedestal (1) horizontal component is 15-45 °.

4. crushing dust-extraction unit according to any ore of Claims 2 or 3, it is characterised in that: the gas collecting tube (17) and Deduster (18) are additionally provided between foul water tank (8).

5. ore according to claim 4 crushes dust-extraction unit, it is characterised in that: the deduster (18) is wet dedusting Device, the hydrofilter include air inlet pipe (181), air guide device (182), surge slot (183), mud ditch (185), liquor box (192), check valve (191), exhaust pipe (187), blower (186), mud valve (193), liquid injection pipe (188), spill box (189)； The air inlet pipe (181) and gas collecting tube (17) connection, air inlet pipe (181) are located at air guide device (182) top, air guide device (182) Top is equipped with exhaust pipe (187) and blower (186), and the lower part of air guide device (182) is connected with surge slot (183), surge slot (183) Lower part is connected with mud ditch (185), and air guide device (182) lower part is connected with surge slot (183) and mud ditch (185), liquor box (192) It is placed between surge slot (183), the surge slot (183) lower part, which is equipped with, holds gas tank (184), and the appearance gas is protruded into surge slot (183) Case (184), the check valve (191), which is set to, holds between gas tank (184) and liquor box (192)；The side of mud ditch (185) is connected with Spill box (189), spill box (189) are equipped with the cross over pipe (194) of connection exhaust pipe (187), the side wall in mud ditch (185) It is equipped with horizontally disposed liquid injection pipe (188), liquid injection pipe (188) and the foul water tank (8) connection, the bottom of mud ditch (185) Equipped with mud valve (193).

6. ore according to claim 5 crushes dust-extraction unit, it is characterised in that: the surge slot close to check valve (191) (183) it is connected with gas outlet (195) by bipass, gas outlet (195) other end is passed through liquor box (192) top, lets out Tracheae (195) is equipped with opening and closing valve.

7. ore according to claim 6 crushes dust-extraction unit, it is characterised in that: the hydrofilter and filtered water tank (12) buffer tank (10) and water tank with strainer (11) are also successively arranged between.

8. ore according to claim 3 crushes dust-extraction unit, it is characterised in that: No. two dedusting chambers (52) and No. three Dedusting chamber (53) internal upper part is equipped with flue gas inductor (23), is equipped with two PLC controllers (24) outside dirt pocket (5), No. two are removed Flue gas inductor (23) in dirt chamber (52) is electrically connected by PLC controller (24) with the negative-pressure air fan (19) in air entraining pipe (17) It connects, the flue gas inductor (23) of No. three dedusting chambers (53) passes through negative in another PLC controller (24) and backwind tube (17b) Pressure fan (19) electrical connection.