CN209539392U - A kind of coal mining wet precipitator - Google Patents
A kind of coal mining wet precipitator Download PDFInfo
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- CN209539392U CN209539392U CN201821992371.2U CN201821992371U CN209539392U CN 209539392 U CN209539392 U CN 209539392U CN 201821992371 U CN201821992371 U CN 201821992371U CN 209539392 U CN209539392 U CN 209539392U
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- 239000003245 coal Substances 0.000 title claims abstract description 22
- 238000005065 mining Methods 0.000 title abstract description 3
- 239000012716 precipitator Substances 0.000 title abstract 2
- 239000000428 dust Substances 0.000 claims abstract description 159
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 117
- 239000004744 fabric Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims description 121
- 238000009825 accumulation Methods 0.000 claims description 44
- 239000002002 slurry Substances 0.000 claims description 31
- 238000005507 spraying Methods 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 24
- 238000007664 blowing Methods 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 description 7
- 239000003034 coal gas Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000003116 impacting effect Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The utility model belongs to dust removing down-hole of coal mine equipment technical field, specifically a kind of coal mining wet precipitator；Mine is provided with controller on tunnel；No.1 electromagnetic water valve and outlet pipe are provided in the middle part of first shower tray；Outlet pipe is connected to water tank, and the lower end of outlet pipe is central towards collecting tank；No.1 electromagnetic water valve is arranged on outlet pipe, and No.1 electromagnetic water valve is electrically connected with the controller by conducting wire；Collecting tank includes groove body, the hinged filter plate in one end and groove body end, No.1 elastic balloon, No.1 tracheae and elastic string positioned at filter plate other end lower end；Filter plate includes the plate body of filter cloth and fixed filter cloth；Filter cloth end is arranged in one end of No.1 tracheae, and the nozzle of No.1 tracheae has downward filter plate one end of No.1 elastic balloon along filter plate plate face, and the other end of No.1 tracheae is connected to No.1 elastic balloon；The utility model can reduce Caton problem when equipment operation by the dredging to equipment itself.
Description
Technical Field
The utility model belongs to the technical field of colliery dust collecting equipment in the pit, specific wet dust collector for coal mine that says so.
Background
A large amount of dust can be generated in the coal mining process, along with the continuous improvement of the mechanization degree of coal mine production, the dust content in a coal mine tunnel is higher and higher, the whole operation site is full of dust, the dust flies in the whole tunnel, the environment is polluted, the health of coal mine workers is seriously influenced, the coal workers become high-risk groups susceptible to pneumoconiosis, and therefore, the dust falling work in the coal mine tunnel is very necessary. The existing dust removal method can not effectively reduce the concentration of underground dust and can not automatically remove dust, so that the existing dust removal method has the problems of low dust removal efficiency, high energy consumption and environmental pollution. In view of the above-mentioned problem, the utility model relates to a hydrologic cycle formula wet blasting dust collector for colliery in pit to solve the above-mentioned problem.
Patent document 1: the utility model provides a hydrologic cycle formula wet blasting dust collector for colliery is in pit, application number: 2017206004645
In the above patent document 1, the above document discloses a mine tunnel, a liquid accumulation tank is arranged on the left side of the bottom of an inner cavity of the mine tunnel, a water tank is arranged on the right side of the top of the mine tunnel, a first spray disc is arranged on the right side of the top of the inner cavity of the mine tunnel, a circulating pump is arranged on the outer wall of the circulating pipeline, a dust catching cover is arranged on the right side of the liquid accumulation tank, suction fans are arranged on the left and right sides of the top of the dust catching cover, a primary filter screen is arranged in the inner cavity of the dust catching cover, a dust exhaust channel is arranged on the top of the dust catching cover, an air outlet filter screen is arranged at the left end of the dust exhaust channel, and a second spray disc is arranged in the inner; the device not only humidifies the air in the mine, but also effectively removes dust in the air, reduces the morbidity of workers, simultaneously enhances the safety of the underground work, and brings great convenience to the mine construction; however, the liquid collecting tank and the liquid collecting tank of the device are often blocked, so that the whole device is often stuck and cannot normally operate.
SUMMERY OF THE UTILITY MODEL
In order to compensate the deficiency of the prior art, the utility model provides a wet dust collector for coal mine, the utility model aims to improve the dust collection efficiency in the colliery well to through the card problem of stopping up when dredging to equipment self with the reduction equipment operation.
The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a wet dust collector for coal mine, which comprises a mine tunnel; a liquid accumulation box is arranged on the left side of the bottom of the inner cavity of the mine tunnel; a filter screen is arranged at the top of the inner cavity of the liquid accumulation box; a water tank is arranged on the right side of the top of the mine tunnel; a return pipeline is arranged on the right wall of the liquid accumulation box; the liquid accumulation box is connected with the water tank through a return pipeline; the outer wall of the return pipeline is provided with a control valve; a first spraying disc is arranged on the right side of the top of the inner cavity of the mine tunnel; a circulating pipeline is arranged on the right wall of the water tank; the water tank is connected with the first spraying disc through a circulating pipeline; the outer wall of the circulating pipeline is provided with a circulating pump; a dust catching cover is arranged on the right side of the liquid accumulation box; suction fans are arranged on the left side and the right side of the top of the dust catching cover; a primary filter screen is arranged in the inner cavity of the dust catching cover; the left side wall and the right side wall of the inner cavity of the dust catching cover are both provided with a dust concentration sensor; the top of the dust catching cover is provided with a dust exhaust channel; the left end of the dust exhaust channel penetrates through the top of the mine tunnel; an air outlet filter screen is arranged at the left end of the dust exhaust channel; a slurry recovery pipeline is arranged at the bottom of the dust exhaust channel; the dust exhaust channel is connected with the liquid accumulation box through a slurry recovery pipeline; the outer wall of the slurry recovery pipeline is provided with an adjusting valve; a transfusion pipeline is arranged at the top of the left wall of the water tank; a second spraying disc is arranged in the inner cavity of the dust exhaust channel; the water tank is connected with the second spraying disc through a liquid conveying pipeline; a liquid collecting tank is arranged at the bottom of the inner cavity of the mine tunnel; a liquid collecting pipeline is arranged on the right wall of the liquid collecting groove; the liquid collecting tank is connected with the water tank through a liquid collecting pipeline; a purifying pump is arranged on the outer wall of the liquid collecting pipeline; the dust catching cover is connected with the dust exhaust channel through a connecting flange; the outer wall of the first spray disc is uniformly provided with first spray heads; the outer wall of the second spray tray is uniformly provided with second spray heads; the left side and the right side of the second spraying disc are both provided with water baffles; the outer wall of the air outlet filter screen is uniformly provided with air outlet filter holes; the outer wall of the primary filter screen is uniformly provided with primary filter holes, and the aperture of the outlet filter holes is larger than that of the primary filter holes;
a controller is arranged on the mine tunnel; the middle part of the first spray disc is provided with a first electromagnetic water valve and a water outlet pipe; the water outlet pipe is communicated with the water tank, and the lower end of the water outlet pipe faces to the center of the liquid collecting tank; the first electromagnetic water valve is arranged on the water outlet pipe and is electrically connected with the controller through a lead; the liquid collecting tank comprises a tank body, a filter plate, a first elastic air bag, a first air pipe and an elastic rope, wherein one end of the filter plate is hinged with the end part of the tank body; the filter plate comprises filter cloth and a plate body for fixing the filter cloth; a plurality of air holes are arranged on the first elastic air bag, and the upper end of the first elastic air bag is abutted against the lower end of the filter plate; one end of the first air pipe is provided with a filter cloth end part, the pipe opening of the first air pipe faces downwards along the surface of the filter plate and is provided with one end of the filter plate of the first elastic air bag, and the other end of the first air pipe is communicated with the first elastic air bag; one end of the elastic rope is connected with one end of the filter plate with the first elastic air bag below, and the other end of the elastic rope is connected with the top end of the tank body. When the dust collector works, when the dust in a mine tunnel is excessive, the dust concentration sensor detects the excessive dust, the suction fan is started to absorb the dust in the mine tunnel, then primary filtration is carried out through a primary filter screen in the dust collection cover, fine particles enter a dust exhaust channel after passing through the primary filter screen, a water tank carries out wet spraying treatment on the dust in the dust exhaust channel through a liquid conveying pipeline and a second spraying disc, on one hand, gas after dust removal is discharged through a gas outlet filter screen, on the other hand, formed dust slurry is recycled through a regulating valve and a slurry recycling pipeline and is introduced into a liquid accumulation box, the filter screen arranged in the liquid accumulation box filters the dust slurry entering the liquid accumulation box, then liquid recycled in the liquid accumulation box is conveyed into the water tank through a return pipeline and a control valve for water recycling, in addition, the water tank supplies water to a first spraying disc through a circulating pipeline and a circulating pump, wet spraying dust removal is carried out in the mine tunnel, sprayed liquid is collected through a liquid collecting tank in the mine tunnel and is recovered into a water tank after being treated through a liquid collecting pipeline and a purification pump, and water circulation type wet spraying dust removal is realized; in the downward spraying process of the first spraying disc, the controller controls the first electromagnetic water valve on the water outlet pipe to be opened intermittently, so that water in the water tank impacts a filter plate of the liquid collecting tank intermittently, and water with dust is filtered by the filter cloth and flows into the tank body; one end of the filter plate is hinged with the groove body, so that water impacting the filter plate can enable the filter plate to incline downwards, on one hand, the filter plate inclines downwards, dust on the filter cloth can be accumulated to one side of the filter plate with the elastic air bag at the lower end, and part of dust is pushed out of the filter plate; on the other hand, the elastic air bag I is compressed by the filter plate, and the elastic air bag I blows air along the surface of the filter plate through the air pipe I, so that dust on the filter cloth accumulates at one end of the filter plate with the elastic air bag I downwards, the filter cloth can be prevented from being blocked by the filter plate for a long time, the filter cloth is favorable for better filtering water with dust, and after the water with dust falls into the groove body, the elastic rope pulls the filter plate to recover the horizontal state.
An air blowing plate is arranged below the middle part of the filter plate; the inside of the air blowing plate is hollow, and a second air pipe is communicated between the air blowing plate and the first air pipe. When the filter plate works, the first elastic air bag introduces air to the air blowing plate, the air blowing plate blows air towards the middle of the filter plate, so that dust adhered to filter cloth is blown up, the filter plate is favorably dredged, and meanwhile, the air blowing plate and the first air pipe work in a matched mode, so that the dust on the filter plate can be better discharged.
A plurality of elastic air bags are arranged at the lower end of the filter plate and communicated with each other. When the dust removal device works, the elastic air bags I work simultaneously, so that dust on the filter plate can be better removed, and the dust removal efficiency on the filter plate is improved.
The air outlet filter screen is provided with an activated carbon filter layer and two filter cloth layers; the active carbon filter layer is positioned between the two filter cloth layers. When the coal gas adsorption device works, dust in blown gas can be filtered through the filter cloth layer, coal gas in the gas can be adsorbed through the activated carbon filter layer, the content of the coal gas in the air in the mine tunnel is reduced, and the coal gas adsorption device is beneficial to the safety of personnel in the mine tunnel.
The top of the liquid accumulation box is provided with a liquid accumulation water inlet, and the outer wall of the liquid accumulation box is provided with a motor; the accumulated liquid water inlet is connected with a slurry recovery pipeline; the left side wall and the right side wall of the inner cavity of the liquid accumulation box are both provided with a fixing piece; the filter screen is arranged between the two groups of fixing pieces, and the inner walls of the two groups of fixing pieces are provided with stop blocks; the stop block is positioned at the bottom of the filter screen; the filter screen comprises a mud filter screen; a seepage film is arranged at the bottom of the slurry filter screen; a crankshaft of the motor extends into the liquid accumulation box, the motor is electrically connected with the controller through a lead, and a cam is arranged at the end part of the crankshaft of the motor; the lower end of the cam is provided with a second elastic air bag; the second elastic air bag is communicated with an air inlet pipe and a plurality of first air holes; and the air inlet pipe is provided with a one-way air inlet valve. When the device works, the controller controls the motor to rotate, so that the cam rotates to stir water and slurry in the liquid accumulation box, and suspended matters in the filtered water are prevented from precipitating to block the liquid accumulation box; meanwhile, the cam rotates to extrude the second elastic air bag, so that the second elastic air bag blows air and sprays water to the outside, and suspended matters in water filtered by the liquid seepage membrane can be prevented from being deposited; when the second elastic air bag recovers, on one hand, air is sucked through the air inlet pipe, and on the other hand, the second elastic air bag sucks water through the air hole.
And a linear stirring plate is arranged on one side end face of the cam. The cam is provided with the in-line stirring plate, so that the stirring effect of the cam can be enhanced.
And a cushion block is arranged between the slurry filter screen and the liquid seepage membrane. The distance between the slurry filter screen and the liquid seepage membrane is changed by arranging the cushion block, so that the slurry filter screen is prevented from being completely attached to the liquid seepage membrane to block the liquid seepage membrane, and the filtration efficiency of the liquid seepage membrane is improved.
The utility model has the advantages as follows:
1. the utility model discloses can the automated inspection colliery dust in the underworkings to remove dust and spraying, practiced thrift the energy, fully solved traditional dust removal method inefficiency, the effect is poor, the problem that power consumption is high, the effectual dust concentration in the pit that has reduced, this simple and easy mine dust removal humidification device not only is the air humidifying in the mine, but also effectively gets rid of the dust in the air, has reduced workman's morbidity, the security of working in the mine has been strengthened simultaneously, very big facility has been brought for the mine construction.
2. The utility model can flush the filter plate by the water outlet pipe, on one hand, the filter plate can be flushed, the water impacting the filter plate can lead the filter plate to incline downwards, the dust on the filter cloth can be accumulated on one side of the filter plate with the elastic air bag at the lower end, and part of the dust is pushed out of the filter plate; the first elastic air bag blows air along the surface of the filter plate through the first air pipe, so that dust on the filter cloth is accumulated at one end of the filter plate with the first elastic air bag downwards, the filter cloth can be prevented from being blocked by the filter plate for a long time, and the filter cloth is favorable for better filtering water with dust.
3. The utility model discloses a blow the board and blow towards the filter plate middle part, make the dust of adhesion on the filter cloth blown up, be favorable to the mediation of filter plate, simultaneously, blow board and a trachea cooperation work, the dust with on the filter plate that can be better is discharged away.
Drawings
FIG. 1 is a schematic view of the overall structure of a wet dust collector for coal mine;
fig. 2 is a schematic view of the connection between the water outlet pipe and the first spraying tray;
FIG. 3 is a schematic view of the internal structure of the liquid collecting tank of the present invention;
FIG. 4 is a schematic view of the inner structure of the liquid loading box of the present invention;
FIG. 5 is a schematic view of the structure of the air outlet filter screen of the present invention;
in the figure: a mine tunnel 1, a liquid accumulation box 2, a filter screen 3, a slurry filter screen 31, a liquid seepage film 32, a water tank 4, a return pipeline 5, a control valve 6, a first spray disc 7, a circulating pipeline 8, a circulating pump 9, a dust catching cover 10, a suction fan 11, a primary filter screen 12, a dust exhaust pipeline 13, an air outlet filter screen 14, an active carbon filter layer 141, a filter cloth layer 142, a slurry recovery pipeline 15, a regulating valve 16, a liquid conveying pipeline 17, a second spray disc 18 and a dust concentration sensor 19, the device comprises a liquid collecting tank 20, a liquid collecting pipeline 21, a purifying pump 22, a liquid accumulation inlet 23, a fixing piece 24, a stop block 25, a tank body 26, a filter plate 27, a filter cloth 271, a plate body 272, a first elastic air bag 28, a first air pipe 29, a water outlet pipe 34, a blowing plate 42, a second air pipe 41, a motor 57, a cam 51, a second elastic air bag 52, an air inlet pipe 53, a one-way air inlet valve 54, a linear stirring plate 55 and a cushion block 56.
Detailed Description
As shown in fig. 1 to 5, the wet dust collector for coal mine of the present invention comprises a mine tunnel 1; a liquid accumulation box 2 is arranged on the left side of the bottom of the inner cavity of the mine tunnel 1; a filter screen 3 is arranged at the top of the inner cavity of the liquid accumulation box 2; a water tank 4 is arranged on the right side of the top of the mine tunnel 1; a return pipeline 5 is arranged on the right wall of the liquid accumulation box 2; the liquid accumulation box 2 is connected with a water tank 4 through a return pipeline 5; the outer wall of the return pipeline 5 is provided with a control valve 6; a first spray disc 7 is arranged on the right side of the top of the inner cavity of the mine tunnel 1; a circulating pipeline 8 is arranged on the right wall of the water tank 4; the water tank 4 is connected with a first spray disc 7 through a circulating pipeline 8; the outer wall of the circulating pipeline 8 is provided with a circulating pump 9; a dust catching cover 10 is arranged on the right side of the liquid accumulating box 2; the left side and the right side of the top of the dust catching cover 10 are both provided with suction fans 11; a primary filter screen 12 is arranged in the inner cavity of the dust collection cover 10; the left side wall and the right side wall of the inner cavity of the dust catching cover 10 are both provided with a dust concentration sensor 19; the top of the dust catching cover 10 is provided with a dust exhaust channel 13; the left end of the dust exhaust duct 13 penetrates through the top of the mine tunnel 1; an air outlet filter screen 14 is arranged at the left end of the dust exhaust channel 13; a slurry recovery pipeline 15 is arranged at the bottom of the dust exhaust channel 13; the dust exhaust channel 13 is connected with the liquid accumulation box 2 through a slurry recovery pipeline 15; the outer wall of the slurry recovery pipeline 15 is provided with an adjusting valve 16; the top of the left wall of the water tank 4 is provided with a transfusion pipeline 17; a second spraying disc 18 is arranged in the inner cavity of the dust exhaust channel 13; the water tank 4 is connected with a second spraying disc 18 through a liquid conveying pipeline 17; a liquid collecting tank 20 is arranged at the bottom of the inner cavity of the mine tunnel 1; the right wall of the liquid collecting groove 20 is provided with a liquid collecting pipeline 21; the liquid collecting groove 20 is connected with the water tank 4 through a liquid collecting pipeline 21; a purifying pump 22 is arranged on the outer wall of the liquid collecting pipeline 21; the dust catching cover 10 is connected with the dust exhaust channel 13 through a connecting flange; the outer wall of the first spray disc 7 is uniformly provided with first spray heads; the outer wall of the second spray disc 18 is uniformly provided with second spray heads; the left side and the right side of the second spraying disc 18 are both provided with water baffles; the outer wall of the air outlet filter screen 14 is uniformly provided with air outlet filter holes; the outer wall of the primary filter screen 12 is uniformly provided with primary filter holes, and the aperture of the outlet filter holes is larger than that of the primary filter holes; wherein,
a controller is arranged on the mine tunnel 1; a first electromagnetic water valve and a water outlet pipe 34 are arranged in the middle of the first spray disc 7; the water outlet pipe 34 is communicated with the water tank 4, and the lower end of the water outlet pipe 34 faces to the center of the liquid collecting tank 20; the first electromagnetic water valve is arranged on the water outlet pipe 34 and is electrically connected with the controller through a lead; the liquid collecting tank 20 comprises a tank body 26, a filter plate 27, a first elastic air bag 28, a first air pipe 29 and an elastic rope, wherein one end of the filter plate 27 is hinged with the end part of the tank body 26; the filter plate 27 comprises a filter cloth 271 and a plate body 272 for fixing the filter cloth 271; a plurality of air holes are arranged on the first elastic air bag 28, and the upper end of the first elastic air bag 28 is abutted against the lower end of the filter plate 27; one end of the first air pipe 29 is provided with the end part of the filter cloth 271, the pipe orifice of the first air pipe 29 is provided with one end of the filter plate 27 of the first elastic air bag 28 along the plate surface of the filter plate 27 downwards, and the other end of the first air pipe 29 is communicated with the first elastic air bag 28; one end of the elastic rope is connected with one end of a filter plate 27 with a first elastic air bag 28 below, and the other end of the elastic rope is connected with the top end of the groove body 26. When the dust collecting device works, when the dust in the mine tunnel 1 is excessive, the dust is detected through the dust concentration sensor 19, the suction fan 11 is started to absorb the dust in the mine tunnel 1, then primary filtration is carried out through the primary filter screen 12 in the dust collecting cover 10, fine particles enter the dust exhaust duct 13 after passing through the primary filter screen 12, the water tank 4 carries out wet spraying treatment on the dust in the dust exhaust duct 13 through the liquid conveying pipeline 17 and the second spraying disc 18, on one hand, the gas after dust removal is discharged through the air outlet filter screen 14, on the other hand, the formed dust slurry is recovered through the regulating valve 16 and the slurry recovery pipeline 15 and is introduced into the liquid accumulation box 2, the filter screen 3 arranged in the liquid accumulation box 2 filters the dust slurry entering the liquid accumulation box 2, and then the liquid recovered in the liquid accumulation box 2 is conveyed into the water tank 4 through the return pipeline 5 and the control valve 6, water is recycled, in addition, the water tank 4 supplies water to the first spray disc 7 through a circulating pipeline 8 and a circulating pump 9, wet spraying dust removal is carried out in the mine tunnel 1, the sprayed liquid is collected through a liquid collecting tank 20 in the mine tunnel 1, and is recycled into the water tank 4 after being treated through a liquid collecting pipeline 21 and a purifying pump 22, so that water circulation type wet spraying dust removal is realized; wherein,
in the downward spraying process of the first spraying disc 7, the controller controls the first electromagnetic water valve on the water outlet pipe 34 to be opened intermittently, so that water in the water tank 4 impacts the filter plate 27 of the liquid collecting tank 20 intermittently, and water with dust is filtered by the filter cloth 271 and then flows into the tank body 26; because one end of the filter plate 27 is hinged with the groove body 26, water impacting on the filter plate 27 enables the filter plate 27 to incline downwards, on one hand, the filter plate 27 inclines downwards, dust on the filter cloth 271 is accumulated on one side of the filter plate 27 with the elastic air bag at the lower end, and part of dust is pushed out of the filter plate 27; on the other hand, the first elastic air bag 28 is compressed by the filter plate 27, and the first elastic air bag 28 blows air to the surface along the filter plate 27 through the first air pipe 29, so that dust on the filter cloth 271 is accumulated at one end of the filter plate 27 with the first elastic air bag 28 downwards, the filter cloth 271 can be prevented from being blocked by the filter plate 27 for a long time, water with dust is favorably filtered by the filter cloth 271, and after the water with dust falls into the groove body 26, the elastic rope pulls the filter plate 27 to recover the horizontal state.
An air blowing plate 42 is arranged below the middle part of the filter plate 27; the inside of the air blowing plate 42 is hollow, and a second air pipe 41 is communicated between the air blowing plate 42 and the first air pipe 29. When the air blowing device works, the first elastic air bag 28 blows air to the air blowing plate 42, the air blowing plate 42 blows air towards the middle of the filter plate 27, dust adhered to the filter cloth 271 is blown, dredging of the filter plate 27 is facilitated, and meanwhile, the air blowing plate 42 and the first air pipe 29 work in a matched mode, so that dust on the filter plate 27 can be better discharged.
A plurality of first elastic air bags 28 are arranged at the lower end of the filter plate 27, and the first elastic air bags 28 are communicated with each other. When the dust-removing device works, the elastic air bags 28 work simultaneously, so that dust on the filter plate 27 can be better removed, and the dust removing efficiency on the filter plate 27 is improved.
The air outlet filter screen 14 is provided with an activated carbon filter layer 141 and two filter cloth layers 142; the activated carbon filter layer 141 is located between two filter cloth layers 142. During operation, the dust in the blown-out gas can be filtered through the filter cloth layer 142, and the coal gas in the gas can be adsorbed through the activated carbon filter layer 141, so that the coal gas content in the air in the mine tunnel 1 is reduced, and the safety of personnel in the mine tunnel 1 is facilitated.
The top of the liquid accumulating box 2 is provided with a liquid accumulating water inlet 23, and the outer wall of the liquid accumulating box 2 is provided with a motor 57; the accumulated liquid water inlet 23 is connected with the slurry recovery pipeline 15; the left side wall and the right side wall of the inner cavity of the liquid accumulation box 2 are both provided with a fixing piece 24; the filter screen 3 is arranged between the two groups of fixing pieces 24, and the inner walls of the two groups of fixing pieces 24 are provided with stop blocks 25; the stop block 25 is positioned at the bottom of the filter screen 3; the filter screen 3 comprises a mud filter screen 31; a seepage film 32 is arranged at the bottom of the mud filter screen 31; a crankshaft of the motor 57 extends into the liquid accumulation box 2, the motor 57 is electrically connected with the controller through a lead, and a cam 51 is arranged at the end part of the crankshaft of the motor 57; the lower end of the cam 51 is provided with a second elastic air bag 52; the second elastic air bag 52 is communicated with an air inlet pipe 53 and a plurality of first air holes; the intake pipe 53 is provided with a one-way intake valve 54. When the device works, the controller controls the motor 57 to rotate, so that the cam 51 rotates to stir water and slurry in the liquid accumulation box 2, and the phenomenon that the filtered suspended matters in water are precipitated to block the liquid accumulation box 2 is avoided; meanwhile, the cam 51 rotates to extrude the second elastic air bag 52, so that the second elastic air bag 52 blows air and sprays water to the outside, and suspended matters in water filtered by the liquid seepage film 32 can be prevented from depositing; when the second elastic air cell 52 recovers, air is sucked through the air inlet pipe 53, and water is sucked through the air hole of the second elastic air cell 52.
An in-line stirring plate 55 is arranged on one side end face of the cam 51. The cam 51 is provided with an in-line stirring plate 55 to enhance the stirring effect of the cam 51.
A cushion block 56 is arranged between the mud filter screen 31 and the liquid seepage film 32. The cushion block 56 is arranged to change the distance between the slurry filter screen 31 and the liquid seepage film 32, so that the slurry filter screen 31 is prevented from being completely attached to the liquid seepage film 32 to block the liquid seepage film 32, and the improvement of the filtering efficiency of the liquid seepage film 32 is facilitated.
The specific working process is as follows:
when the dust in the mine tunnel 1 is too much, the dust concentration sensor 19 is used for detecting, the suction fan 11 is started to absorb the dust in the mine tunnel 1, then the primary filtration is carried out through the primary filter screen 12 in the dust catching cover 10, fine particles enter the dust exhaust duct 13 after passing through the primary filter screen 12, the water tank 4 carries out wet spraying treatment on the dust in the dust exhaust duct 13 through the liquid conveying pipeline 17 and the second spraying disc 18, on one hand, the gas after dust removal is discharged through the air outlet filter screen 14, on the other hand, the formed dust slurry is recycled through the regulating valve 16 and the slurry recycling pipeline 15 and is introduced into the liquid accumulating box 2, the filter screen 3 arranged in the liquid accumulating box 2 filters the dust slurry entering the liquid accumulating box 2, and then the liquid recycled in the liquid accumulating box 2 is conveyed into the water tank 4 through the return pipeline 5 and the control valve 6, water is recycled, in addition, the water tank 4 supplies water to the first spray disc 7 through a circulating pipeline 8 and a circulating pump 9, wet spraying dust removal is carried out in the mine tunnel 1, the sprayed liquid is collected through a liquid collecting tank 20 in the mine tunnel 1, and is recycled into the water tank 4 after being treated through a liquid collecting pipeline 21 and a purifying pump 22, so that water circulation type wet spraying dust removal is realized; wherein,
in the downward spraying process of the first spraying disc 7, the controller controls the first electromagnetic water valve on the water outlet pipe 34 to be opened intermittently, so that water in the water tank 4 impacts the filter plate 27 of the liquid collecting tank 20 intermittently, and water with dust is filtered by the filter cloth 271 and then flows into the tank body 26; because one end of the filter plate 27 is hinged with the groove body 26, water impacting on the filter plate 27 enables the filter plate 27 to incline downwards, on one hand, the filter plate 27 inclines downwards, dust on the filter cloth 271 is accumulated on one side of the filter plate 27 with the elastic air bag at the lower end, and part of dust is pushed out of the filter plate 27; on the other hand, the first elastic air bag 28 is compressed by the filter plate 27, and the first elastic air bag 28 blows air to the surface along the filter plate 27 through the first air pipe 29, so that dust on the filter cloth 271 is accumulated at one end of the filter plate 27 with the first elastic air bag 28 downwards, the filter cloth 271 can be prevented from being blocked by the filter plate 27 for a long time, water with dust is favorably filtered by the filter cloth 271, and after the water with dust falls into the groove body 26, the elastic rope pulls the filter plate 27 to recover the horizontal state.
The control valve in the utility model is a direct-acting electromagnetic valve; the first electromagnetic water valve is a ZW series electromagnetic valve; the one-way air inlet valve is a CL type or CH type one-way valve; the motor is a stepping motor; the controller is a PLC controller.
While the present invention has been described with reference to the above embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention.
Claims (7)
1. A wet dust collector for coal mine comprises a mine tunnel (1); a liquid accumulation box (2) is arranged on the left side of the bottom of the inner cavity of the mine tunnel (1); a filter screen (3) is arranged at the top of the inner cavity of the liquid accumulation box (2); a water tank (4) is arranged on the right side of the top of the mine tunnel (1); a return pipeline (5) is arranged on the right wall of the liquid accumulation box (2); the liquid accumulation box (2) is connected with the water tank (4) through a return pipeline (5); a control valve (6) is arranged on the outer wall of the return pipeline (5); a first spray disc (7) is arranged on the right side of the top of the inner cavity of the mine tunnel (1); a circulating pipeline (8) is arranged on the right wall of the water tank (4); the water tank (4) is connected with the first spraying disc (7) through a circulating pipeline (8); a circulating pump (9) is arranged on the outer wall of the circulating pipeline (8); a dust catching cover (10) is arranged on the right side of the liquid accumulating box (2); the left side and the right side of the top of the dust hood (10) are provided with suction fans (11); a primary filter screen (12) is arranged in the inner cavity of the dust collection cover (10); the left side wall and the right side wall of the inner cavity of the dust catching cover (10) are provided with dust concentration sensors (19); a dust exhaust channel (13) is arranged at the top of the dust collection cover (10); the left end of the dust exhaust passage (13) penetrates through the top of the mine tunnel (1); an air outlet filter screen (14) is arranged at the left end of the dust exhaust channel (13); a slurry recovery pipeline (15) is arranged at the bottom of the dust exhaust channel (13); the dust exhaust channel (13) is connected with the liquid accumulation box (2) through a slurry recovery pipeline (15); the outer wall of the slurry recovery pipeline (15) is provided with an adjusting valve (16); a transfusion pipeline (17) is arranged at the top of the left wall of the water tank (4); a second spray disc (18) is arranged in the inner cavity of the dust exhaust channel (13); the water tank (4) is connected with a second spray tray (18) through a liquid conveying pipeline (17); a liquid collecting tank (20) is arranged at the bottom of the inner cavity of the mine tunnel (1); a liquid collecting pipeline (21) is arranged on the right wall of the liquid collecting groove (20); the liquid collecting groove (20) is connected with the water tank (4) through a liquid collecting pipeline (21); a purifying pump (22) is arranged on the outer wall of the liquid collecting pipeline (21); the method is characterized in that:
a controller is arranged on the mine tunnel (1); a first electromagnetic water valve and a water outlet pipe (34) are arranged in the middle of the first spray disc (7); the water outlet pipe (34) is communicated with the water tank (4), and the lower end of the water outlet pipe (34) faces to the center of the liquid collecting tank (20); the first electromagnetic water valve is arranged on the water outlet pipe (34) and is electrically connected with the controller through a lead; the liquid collecting tank (20) comprises a tank body (26), a filter plate (27) with one end hinged with the end part of the tank body (26), a first elastic air bag (28) positioned at the lower end of the other end of the filter plate (27), a first air pipe (29) and an elastic rope; the filter plate (27) comprises a filter cloth (271) and a plate body (272) for fixing the filter cloth (271); a plurality of air holes are arranged on the first elastic air bag (28), and the upper end of the first elastic air bag (28) is abutted against the lower end of the filter plate (27); one end of the first air pipe (29) is provided with the end part of the filter cloth (271), the pipe orifice of the first air pipe (29) is provided with one end of the filter plate (27) of the first elastic air bag (28) along the plate surface of the filter plate (27) towards the lower part, and the other end of the first air pipe (29) is communicated with the first elastic air bag (28); one end of the elastic rope is connected with one end of a filter plate (27) with a first elastic air bag (28) below, and the other end of the elastic rope is connected with the top end of the groove body (26).
2. A coal mine wet dust collector as defined in claim 1, wherein: an air blowing plate (42) is arranged below the middle part of the filter plate (27); the interior of the air blowing plate (42) is hollow, and a second air pipe (41) is communicated between the air blowing plate (42) and the first air pipe (29).
3. A coal mine wet dust collector as defined in claim 2, wherein: a plurality of first elastic air bags (28) are arranged at the lower end of the filter plate (27), and the first elastic air bags (28) are communicated with each other.
4. A coal mine wet dust collector as defined in claim 1, wherein: the air outlet filter screen (14) is provided with an activated carbon filter layer (141) and two filter cloth layers (142); the activated carbon filter layer (141) is positioned between the two filter cloth layers (142).
5. A coal mine wet dust collector as defined in claim 1, wherein: a liquid accumulation water inlet (23) is formed in the top of the liquid accumulation box (2), and a motor (57) is arranged on the outer wall of the liquid accumulation box (2); the accumulated liquid water inlet (23) is connected with a slurry recovery pipeline (15); the left side wall and the right side wall of the inner cavity of the liquid accumulation box (2) are provided with fixing pieces (24); the filter screen (3) is arranged between the two groups of fixing pieces (24), and the inner walls of the two groups of fixing pieces (24) are provided with stop blocks (25); the stop block (25) is positioned at the bottom of the filter screen (3); the filter screen (3) comprises a mud filter screen (31); a seepage film (32) is arranged at the bottom of the mud filter screen (31); a crankshaft of the motor (57) extends into the liquid accumulation box (2), and a cam (51) is arranged at the end part of the crankshaft of the motor (57); the lower end of the cam (51) is provided with a second elastic air bag (52); the second elastic air bag (52) is communicated with an air inlet pipe (53) and a plurality of first air holes; and a one-way air inlet valve (54) is arranged on the air inlet pipe (53).
6. A coal mine wet dust collector as defined in claim 5, wherein: one side end face of the cam (51) is provided with a linear stirring plate (55).
7. A coal mine wet dust collector as defined in claim 6, wherein: a cushion block (56) is arranged between the mud filter screen (31) and the seepage membrane (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821992371.2U CN209539392U (en) | 2018-11-29 | 2018-11-29 | A kind of coal mining wet precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821992371.2U CN209539392U (en) | 2018-11-29 | 2018-11-29 | A kind of coal mining wet precipitator |
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| Publication Number | Publication Date |
|---|---|
| CN209539392U true CN209539392U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821992371.2U Expired - Fee Related CN209539392U (en) | 2018-11-29 | 2018-11-29 | A kind of coal mining wet precipitator |
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| Country | Link |
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| CN (1) | CN209539392U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488362A (en) * | 2018-11-29 | 2019-03-19 | 安徽省皖北煤电集团有限责任公司 | A kind of coal mining wet precipitator |
| CN112878779A (en) * | 2021-01-14 | 2021-06-01 | 南京丰宏成贸易有限公司 | Intelligent communication tower device capable of effectively preventing inclination |
| CN114392601A (en) * | 2021-12-29 | 2022-04-26 | 席振涛 | CNC numerical control machining center lathe |
-
2018
- 2018-11-29 CN CN201821992371.2U patent/CN209539392U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488362A (en) * | 2018-11-29 | 2019-03-19 | 安徽省皖北煤电集团有限责任公司 | A kind of coal mining wet precipitator |
| CN109488362B (en) * | 2018-11-29 | 2024-05-24 | 安徽省皖北煤电集团有限责任公司 | Wet dust collector for coal mine |
| CN112878779A (en) * | 2021-01-14 | 2021-06-01 | 南京丰宏成贸易有限公司 | Intelligent communication tower device capable of effectively preventing inclination |
| CN114392601A (en) * | 2021-12-29 | 2022-04-26 | 席振涛 | CNC numerical control machining center lathe |
| CN114392601B (en) * | 2021-12-29 | 2024-01-19 | 东莞市台信数控科技有限公司 | CNC numerical control machining center lathe |
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Granted publication date: 20191025 Termination date: 20201129 |