A dust removal device for coal powder preparation

Abstract

The present invention discloses a dust removal device for coal powder preparation, comprising a box body, the upper end of which is open, the four bottom corners of the box body are connected to columns, the inner cavity of the box body is connected to two partitions, the inner cavity of the box body is provided with a spray chamber, a water purification chamber and a cleaning chamber in sequence from left to right, the top of the spray chamber is connected to a guide seat, the top of the guide seat is connected to a filter shell, the front and rear ends of the box body are connected to guide rods, the outer wall sliding sleeve of the guide rod is provided with a slider, the top of the slider is connected to a hydraulic rod, the upper end of the hydraulic rod is connected to a side bracket, the side bracket is rotatably connected to a deflection shaft, a pressure cover is connected between the two deflection shafts, the outer wall of the box body is connected to a PLC controller, and the left side wall of the box body is connected to an air intake pipe; the present invention has reasonable structural design, is energy-saving and environmentally friendly, does not require shutdown processing during the cleaning process, and ensures the normal progress of dust removal work.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal devices, and in particular to a dust removal device for preparing coal powder. Background Art

[0002] Coal is mainly composed of carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus. The sum of carbon, hydrogen and oxygen accounts for more than 95% of organic matter. It is a very important energy source and an important raw material for metallurgy and chemical industry. It is classified into lignite, bituminous coal, anthracite and semi-anthracite. Coal powder will produce waste gas containing dust impurities during the preparation process. Therefore, a coal powder dust removal device is usually installed in the coal powder production workshop. The existing dust removal device for coal powder preparation has certain limitations when used. For example, the existing dust removal device for coal powder preparation has the problem of unsatisfactory dust removal effect during use, and cannot effectively reduce the dust in the waste gas. It is directly discharged and easily pollutes the environment.

[0003] To this end, those skilled in the art have conducted research and improvements, such as a dust removal device for coal powder preparation with application number CN202221374370.8. This technical solution uses water mist to reduce dust in dust-laden gas, and filters the gas through a filter, which can effectively filter out impurities in the gas. However, this technical solution still has shortcomings. The dust-laden sewage generated by the device is directly discharged, which wastes water resources, and the filter mesh is prone to clogging after long-term use. It must be disassembled and shut down for cleaning, which affects the normal dust removal work. To this end, we proposed a dust removal device for coal powder preparation. Summary of the invention

[0004] The object of the present invention is to provide a dust removal device for preparing coal powder, so as to overcome the technical problems existing in the prior art.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention provides the following technical solutions:

[0006] A dust removal device for coal powder preparation comprises a box body, the upper end of which is open, the four bottom corners of which are connected to columns, the inner cavity of the box body is connected to two partitions, the inner cavity of the box body is provided with a spray chamber, a water purification chamber and a cleaning chamber from left to right in sequence, the top of the spray chamber is connected to a guide seat, the top of the guide seat is connected to a filter shell, the front and rear ends of the box body are connected to guide rods, the outer wall sliding sleeve of the guide rod is provided with a slider, the top of the slider is connected to a hydraulic rod, the upper end of the hydraulic rod is connected to a side bracket, the side bracket is rotatably connected to a deflection shaft, a pressure cover is connected between the two deflection shafts, the outer wall of the box body is connected to a PLC controller, the left side wall of the box body is connected to an air intake pipe, and a suction fan is installed in the air intake pipe.

[0007] Preferably, in a dust removal device for preparing coal powder, a screw motor is connected to the top center of the pressure cover, a bidirectional reciprocating screw is connected to the top output end of the screw motor, a nut seat is screwed on the outer wall of the bidirectional reciprocating screw, an L-shaped rod is connected to the outer wall of the nut seat, and the lower ends of the four L-shaped rods are commonly connected to a lifting shell, a circular through hole is opened on the pressure cover for the vertical part of the L-shaped rod to pass through, and a sealing ring is connected to the inner wall of the circular through hole.

[0008] Preferably, in a dust removal device for coal powder preparation, the lifting shell is arranged in a cross-shaped structure, the top center of the lifting shell is connected to a driving motor, the bottom output end of the driving motor is connected to bevel gear one, the inner wall of the lifting shell is connected to a bearing seat all around, a transmission shaft is rotatably connected in the bearing seat, both ends of the transmission shaft are connected to bevel gear two, the inner wall of the end of the lifting shell is rotatably connected to a driven shaft, the upper part of the outer wall of the driven shaft is connected to bevel gear three, the lower part of the outer wall of the driven shaft is connected to a spur gear, and the bevel gears two on both sides are respectively meshed and connected with bevel gear one and bevel gear three.

[0009] Preferably, in a dust removal device for coal powder preparation, the end outer wall of the lifting shell is connected to a limiting shell, an annular seat is provided in the limiting shell, raceways are symmetrically provided between the upper and lower ends of the annular seat and the inner wall of the limiting shell, a plurality of metal steel balls are provided in the raceways, a cleaning brush is connected to the inner side wall of the annular seat, an annular tooth groove is provided on the lower part of the outer side wall of the annular seat, and the annular tooth groove is meshedly connected to a spur gear.

[0010] Preferably, in a dust removal device for preparing coal powder, a porous plate is connected to the bottom of the inner wall of the filter shell, four ventilation holes are opened on the circumferential surface of the porous plate, a filter cartridge is installed on the top of the ventilation hole, the outer diameter of the filter cartridge is smaller than the inner hole diameter of the annular seat, the upper part of the right side wall of the filter shell is connected to the exhaust pipe, and the right end of the exhaust pipe extends into the bottom of the inner cavity of the cleaning chamber.

[0011] Preferably, in a dust removal device for preparing coal powder, the filter cartridge is made of stainless steel, the outer wall of the filter cartridge is provided with a plurality of filter mesh holes, a flange is connected to the bottom of the filter cartridge, reinforcing ribs are welded between the flange and the filter cartridge, the flange is fixedly connected to the porous plate by bolts, and a rubber ring is abutted against the lower end of the flange.

[0012] Preferably, in a dust removal device for preparing coal powder, when the sliding block abuts against the left end of the guide rod, the annular seat and the corresponding filter cartridge are arranged coaxially.

[0013] Preferably, in a dust removal device for coal powder preparation, a liquid pump is installed at the bottom of the inner cavity of the clean water chamber, and the output end of the liquid pump is connected to a T-tube, and the water outlet ends of the T-tube are respectively connected to the first branch pipe and the second branch pipe, and the first branch pipe and the second branch pipe are both installed with solenoid valves, the end of the first branch pipe extends into the spray chamber and is connected to a plurality of diversion pipes, and the ends of the plurality of diversion pipes are commonly connected to an annular pipe, a fixed pipe clamp is connected between the annular pipe and the inner wall of the guide seat, a plurality of dust reduction nozzles are circumferentially arranged at the bottom of the annular pipe, and the second branch pipe runs through the cleaning chamber and a cleaning nozzle is installed at the end.

[0014] Preferably, in a dust removal device for coal powder preparation, the outer wall of the guide rod is provided with a transverse tooth groove, the bottom of the slider is connected to a support seat, the top of the support seat is connected to a conveying motor, the output end of the conveying motor is connected to a driving gear, the driving gear is meshed and connected to the transverse tooth groove, a push switch is installed on the right side of the inner wall of the guide rod, the outer wall of the side bracket is connected to an electric push rod, the free end of the electric push rod is connected to a spur rack, the end of the deflection shaft is connected to a mating gear, the mating gear is meshed and connected to the spur rack, and the push switch is electrically connected to the electric push rod.

[0015] Preferably, in a dust removal device for coal powder preparation, the bottoms of the spray chamber and the cleaning chamber are both connected with drain pipes, a stop valve is installed on the drain pipe, a Y-shaped pipe is connected between the two drain pipes, the end of the Y-shaped pipe is connected with a purification shell, a return pipe is connected between the purification shell and the water purification chamber, a circulating pump is installed in the return pipe, and a filter layer, a sponge layer and an activated carbon adsorption layer are detachably installed in the purification shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The structure of the present invention is reasonable. The upper end of the filter shell is sealed by a gland, and dust-laden air is introduced into the spray chamber by a suction fan. Clean water is sucked by a liquid pump and then atomized and sent out by the dust reduction nozzle at the bottom of the annular tube, which can contact with the dust-laden gas sent in to achieve the effect of dust reduction by adhesion. The gas treated by dust reduction enters the filter shell through the vent hole, and the gas is further filtered and dusted by the filter cartridge. The treated gas is sent into the water body in the clean room through the exhaust pipe, and then the exhaust effect is achieved by the overflow of bubbles;

[0018] 2. The present invention introduces the dust-containing sewage from the water purification chamber and the cleaning chamber into the water purification shell through a circulating pump, and uses a filter layer, a sponge layer and an activated carbon adsorption layer to filter and purify the dust-containing sewage. The purified water is re-introduced into the water purification chamber along the reflux pipe for use by the equipment, which is energy-saving and environmentally friendly;

[0019] 3. The present invention cooperates with bevel gear 1, bevel gear 2, transmission shaft, bevel gear 3, driven shaft, spur gear and annular tooth groove for transmission. After the driving motor is turned on, the four annular seats can rotate around their own axis. The screw motor drives the two-way reciprocating screw to rotate, so that the nut seat drives the L-shaped rod to reciprocate and lift, and the lifting seat rises and falls synchronously with the L-shaped rod. The annular seat can be sleeved on the outside of the filter cartridge for cleaning to avoid hole blockage. There is no need to stop the machine during the cleaning process, thereby ensuring the normal dust removal work;

[0020] 4. The slider in the present invention can move along the guide rod, and the pressing switch is pressurized to start the electric push rod, so that the spur rack meshes with the transmission matching gear, and the deflection shaft can drive the pressure cover to deflect, so that the cleaning brush faces to the right, which is convenient for the cleaning nozzle to clean it and convenient for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the gland in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the limiting shell in the present invention;

[0027] Figure 6 It is a schematic diagram of the internal structure of the lifting shell in the present invention;

[0028] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at point A in the middle;

[0029] Figure 8 It is a structural schematic diagram of the annular seat in the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the porous plate in the present invention;

[0031] Fig.10It is a schematic diagram of the structure of the filter cartridge in the present invention;

[0032] Fig.11 It is a structural schematic diagram of the annular tube in the present invention;

[0033] Fig.12 It is a structural schematic diagram of the slider in the present invention;

[0034] Fig.13 It is a schematic diagram of the structure of the side bracket in the present invention;

[0035] Fig.14 It is a schematic diagram of the structure of the purification shell in the present invention.

[0036] In the figure: 1, box body; 2, column; 3, partition; 4, spray chamber; 5, water purification chamber; 6, cleaning chamber; 7, guide seat; 8, filter shell; 9, guide rod; 10, slider; 11, hydraulic rod; 12, side bracket; 13, deflection shaft; 14, gland; 15, lifting shell; 16, limit shell; 17, air inlet pipe; 18, suction fan; 19, PLC controller; 50, cleaning nozzle; 51 , liquid pump; 52, T-tube; 53, first branch pipe; 54, second branch pipe; 55, solenoid valve; 56, diverter pipe; 57, annular pipe; 58, fixed pipe clamp; 59, dust suppression nozzle; 61, sewage pipe; 62, Y-tube; 63, purification shell; 64, return pipe; 65, circulation pump; 66, filter layer; 67, sponge layer; 68, activated carbon adsorption layer; 81, porous plate; 82, ventilation hole; 83, exhaust pipe; 84, filter cartridge; 91, transverse tooth groove; 92, push switch; 101, support seat; 102, conveying motor; 103, driving gear; 121, electric push rod; 122, spur rack; 131, matching gear; 141, screw motor; 142, two-way reciprocating screw; 143, nut seat; 144, L-shaped rod; 145, round hole; 151, driving motor; 152, bevel gear one; 153, bearing seat; 154, transmission shaft; 155, bevel gear two; 156, driven shaft; 157, bevel gear three; 158, spur gear; 161, annular seat; 162, raceway; 163, metal steel ball; 164, cleaning brush; 165, annular tooth groove; 841, filter mesh; 842, flange; 843, reinforcing rib; 844, rubber ring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0038] See also Figure 1-14 As shown, this embodiment is a dust removal device for coal powder preparation, including a box body 1, the upper end of the box body 1 is opened, the four corners of the bottom of the box body 1 are connected to columns 2, the inner cavity of the box body 1 is connected to two partitions 3, the inner cavity of the box body 1 is provided with a spray chamber 4, a water purification chamber 5 and a cleaning chamber 6 from left to right, the top of the spray chamber 4 is connected to a guide seat 7, the top of the guide seat 7 is connected to a filter shell 8, the front and rear ends of the box body 1 are connected to a guide rod 9, the outer wall of the guide rod 9 is slidably sleeved with a slider 10, the top of the slider 10 is connected to a hydraulic rod 11, the upper end of the hydraulic rod 11 is connected to a side bracket 12, the side bracket 12 is rotatably connected to a deflection shaft 13, a pressure cover 14 is connected between the two deflection shafts 13, the outer wall of the box body 1 is connected to a PLC controller 19, the left side wall of the box body 1 is connected to an air intake pipe 17, and a suction fan 18 is installed in the air intake pipe 17.

[0039] The bottom of the inner wall of the filter shell 8 is connected to a porous plate 81, and four ventilation holes 82 are opened on the porous plate 81 in the circumferential direction. A filter cartridge 84 is installed on the top of the ventilation hole 82. The outer diameter of the filter cartridge 84 is smaller than the inner hole diameter of the annular seat 161. The upper part of the right side wall of the filter shell 8 is connected to the exhaust pipe 83, and the right end of the exhaust pipe 83 extends into the bottom of the inner cavity of the cleaning chamber 6. The filter cartridge 84 is used to filter the gas entering the filter shell 8, and the filtered gas is discharged from the exhaust pipe 83.

[0040] A liquid pump 51 is installed at the bottom of the inner cavity of the water purification chamber 5, and the output end of the liquid pump 51 is connected to a T-tube 52. The water outlet ends of the T-tube 52 are respectively connected to the first branch pipe 53 and the second branch pipe 54. The first branch pipe 53 and the second branch pipe 54 are both installed with solenoid valves 55. The end of the first branch pipe 53 extends into the spray chamber 4 and is connected to multiple branch pipes 56. The ends of the multiple branch pipes 56 are commonly connected to an annular pipe 57. A fixed pipe clamp 58 is connected between the annular pipe 57 and the inner wall of the guide seat 7. A plurality of dust reduction nozzles 59 are circumferentially arranged at the bottom of the annular pipe 57. The second branch pipe 54 runs through the cleaning chamber 6 and a cleaning nozzle 50 is installed at the end.

[0041] The bottom of the spray chamber 4 and the cleaning chamber 6 are both connected with a sewage pipe 61, and a stop valve 69 is installed on the sewage pipe 61. A Y-type pipe 62 is connected between the two sewage pipes 61, and the end of the Y-type pipe 62 is connected to a purification shell 63. A return pipe 64 is connected between the purification shell 63 and the water purification chamber 5, and a circulation pump 65 is installed in the return pipe 64. A filter layer 66, a sponge layer 67 and an activated carbon adsorption layer 68 are detachably installed in the purification shell 63.

[0042] The specific implementation of this embodiment is as follows:

[0043] When the device is in use, an external power source is connected, the box body 1 is fixedly supported by the column 2, and the height of the side bracket 12 is adjusted by the hydraulic rod 11, so that the pressure cover 14 closes the upper end of the filter shell 8. After the suction fan 18 is turned on, the dust-containing air generated in the coal powder preparation process is introduced into the spray chamber 4, the solenoid valve 55 of the first branch pipe 53 is opened and the solenoid valve of the second branch pipe 54 is closed. After the liquid pump 51 is started, the clean water in the clean water chamber 5 can be introduced into the shunt pipe 56, and then atomized and sent out by the dust reduction nozzle 59 at the bottom of the annular pipe 57, which can contact with the dust-containing gas sent in to achieve the effect of dust reduction by adhesion. The gas treated by dust reduction continues to rise and can enter the filter shell 8 along the vent hole 82 of the porous plate 81. The gas is further filtered and dusted by the filter cartridge 84. The treated gas is sent out by the exhaust pipe 83 and overflows the water in the clean room 6 in the form of bubbles to achieve the exhaust effect.

[0044] After the dust removal work is completed, the circulation pump 65 can be started. After the stop valve 69 is opened, the dust-containing sewage in the clean water chamber 5 and the cleaning chamber 6 can be introduced into the clean water shell 63. The dust-containing sewage is filtered and purified by the filter layer 66, the sponge layer 67 and the activated carbon adsorption layer 68. The purified water is re-introduced into the clean water chamber 5 along the reflux pipe 64 for equipment use, which is energy-saving and environmentally friendly. Embodiment 2

[0045] On the basis of embodiment one, a screw motor 141 is connected to the top center of the pressure cover 14, and a bidirectional reciprocating screw 142 is connected to the top output end of the screw motor 141. A nut seat 143 is screwed on the outer wall of the bidirectional reciprocating screw 142, and an L-shaped rod 144 is connected to the outer wall of the nut seat 143. The lower ends of the four L-shaped rods 144 are commonly connected to the lifting shell 15. A circular through hole 145 is opened on the pressure cover 14 for the vertical part of the L-shaped rod 144 to pass through, and a sealing ring is connected to the inner wall of the circular through hole 145 to improve the sealing effect.

[0046] The lifting shell 15 is arranged in a cross-shaped structure, the top center of the lifting shell 15 is connected to a driving motor 151, the bottom output end of the driving motor 151 is connected to a bevel gear 152, the inner wall of the lifting shell 15 is connected with a bearing seat 153, a transmission shaft 154 is rotatably connected in the bearing seat 153, both ends of the transmission shaft 154 are connected to a bevel gear 2 155, the inner wall of the end of the lifting shell 15 is rotatably connected to a driven shaft 156, the upper part of the outer wall of the driven shaft 156 is connected to a bevel gear 3 157, the lower part of the outer wall of the driven shaft 156 is connected to a spur gear 158, and the bevel gears 2 155 on both sides are meshed and connected to the bevel gear 1 152 and the bevel gear 3 157 respectively.

[0047] The outer wall of the end of the lifting shell 15 is connected to the limiting shell 16, and an annular seat 161 is arranged inside the limiting shell 16. A raceway 162 is symmetrically opened between the upper and lower ends of the annular seat 161 and the inner wall of the limiting shell 16. A plurality of metal steel balls 163 are arranged in the raceway 162. A cleaning brush 164 is connected to the inner side wall of the annular seat 161, and an annular tooth groove 165 is opened at the lower part of the outer side wall of the annular seat 161, and the annular tooth groove 165 is meshed and connected to the spur gear 158.

[0048] When the slider 10 abuts against the left end of the guide rod 9, the annular seat 161 is arranged coaxially with the corresponding filter cartridge 84 to ensure the cleaning effect.

[0049] The specific implementation of this embodiment is as follows:

[0050] In this embodiment, the filter cartridge 84 is used to filter and remove dust from the dust-laden gas. After long-term use, the inner wall of the cartridge body is easily aided by dust, which leads to blockage of the holes and affects the filtering effect. At this time, the driving motor 151 is started, and the bevel gear 152 is used to mesh with the transmission bevel gear 2 155, so that after the transmission shaft 154 rotates, the bevel gear 2 155 on the other side meshes with the transmission bevel gear 3 157, so that the driven shaft 156 drives the spur gear 158 to rotate, and the end outer wall of the lifting shell 15 is connected to the limit shell 16, so that the tooth portion of the spur gear 158 can mesh with the transmission annular tooth groove 165, and the raceway 162 and the metal steel ball 163 are arranged between the upper and lower ends of the annular seat 161 and the inner wall of the limit shell 16, so that the annular seat 161 can rotate around its own axis, that is, after the driving motor 151 is turned on, the four annular seats 161 can rotate around their own axis;

[0051] When the slider 10 abuts against the left end of the guide rod 9, the annular seat 161 is arranged coaxially with the corresponding filter cartridge 84, and the pressure cover 14 maintains the seal on the top of the filter shell 8. The bidirectional reciprocating screw 142 is driven to rotate by the screw motor 141, so that the nut seat 143 drives the L-shaped rod 144 to reciprocate and rise and fall, and the lifting seat 15 rises and falls synchronously with the L-shaped rod 144, so that the annular seat 161 is sleeved on the outside of the filter cartridge 84. During the lifting process, the driving motor 151 is started, and the cleaning brush 164 can clean the filter cartridge 84 to avoid blockage of the hole. There is no need to stop the machine during the cleaning process, thereby ensuring the normal dust removal work. Embodiment 3

[0052] On the basis of the second embodiment, the filter cartridge 84 is made of stainless steel, and a plurality of filter mesh holes 841 are provided on the outer wall of the filter cartridge 84. A flange 842 is connected to the bottom of the filter cartridge 84, and reinforcing ribs 843 are welded between the flange 842 and the filter cartridge 84. The flange 842 and the porous plate 81 are fixedly connected by bolts, and a rubber ring 844 is abutted against the lower end of the flange 842.

[0053] A transverse tooth groove 91 is formed on the outer wall of the guide rod 9, a support seat 101 is connected to the bottom of the slider 10, a conveying motor 102 is connected to the top of the support seat 101, and a driving gear 103 is connected to the output end of the conveying motor 102, and the driving gear 103 is meshed and connected to the transverse tooth groove 91. A push switch 92 is installed on the right side of the inner wall of the guide rod 9, an electric push rod 121 is connected to the outer wall of the side bracket 12, and a spur rack 122 is connected to the free end of the electric push rod 121, and a mating gear 131 is connected to the end of the deflection shaft 13, and the mating gear 131 is meshed and connected to the spur rack 122, and the push switch 92 is electrically connected to the electric push rod 121.

[0054] The specific implementation of this embodiment is as follows:

[0055] In this embodiment, the filter cartridge 84 is made of stainless steel, which is stronger than the traditional filter bag, not easy to rust and damage, and has a long service life. A reinforcing rib 843 is welded between the flange 842 and the filter cartridge 84, which has high stability and is not easy to tip over. The flange 842 and the porous plate 81 are fixedly connected by bolts and can be replaced regularly. The lower end of the flange 842 is abutted with a rubber ring 844 to improve the sealing effect.

[0056] After the dust removal operation is completed, the side bracket 12 can be raised by the hydraulic rod 11, and the lifting shell 15 is moved out of the filter shell 8 and the conveying motor 102 is started. The driving gear 103 is engaged with the transmission transverse tooth groove 91, and the slider 10 can move right along the guide rod 9. When the slider 10 contacts the press switch 92, the electric push rod 121 is started, and the spur rack 122 is engaged with the transmission matching gear 131, so that the deflection shaft 13 drives the pressure cover 14 to deflect, and then the cleaning brush 164 is directed to the right, and the liquid pump 51 and the solenoid valve 55 on the second branch pipe 54 are started. It can be cleaned by the cleaning nozzle 50, and the sewage after cleaning is collected in the cleaning chamber 6 below.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A dust removal device for preparing coal powder, comprising a housing (1), characterized in that: The upper end of the box (1) is open, the four corners of the bottom of the box (1) are connected to columns (2), the inner cavity of the box (1) is connected to two partitions (3), the inner cavity of the box (1) is provided with a spray chamber (4), a water purification chamber (5) and a cleaning chamber (6) from left to right, the top of the spray chamber (4) is connected to a guide seat (7), the top of the guide seat (7) is connected to a filter shell (8), the front and rear ends of the box (1) are connected to guide rods (9), and the outer wall of the guide rods (9) is The sliding sleeve is provided with a slider (10), the top of the slider (10) is connected to a hydraulic rod (11), the upper end of the hydraulic rod (11) is connected to a side bracket (12), a deflection shaft (13) is rotatably connected to the side bracket (12), a pressure cover (14) is connected between the two deflection shafts (13), the outer wall of the box body (1) is connected to a PLC controller (19), the left side wall of the box body (1) is connected to an air intake pipe (17), and a suction fan (18) is installed in the air intake pipe (17); A liquid pump (51) is installed at the bottom of the inner cavity of the water purification chamber (5), the output end of the liquid pump (51) is connected to a T-shaped pipe (52), the water outlet end of the T-shaped pipe (52) is respectively connected to a first branch pipe (53) and a second branch pipe (54), the first branch pipe (53) and the second branch pipe (54) are both installed with a solenoid valve (55), the end of the first branch pipe (53) extends into the spray chamber (4) and is connected to a plurality of flow diversion pipes (56), the ends of the plurality of flow diversion pipes (56) are commonly connected to an annular pipe (57), a fixed pipe clamp (58) is connected between the annular pipe (57) and the inner wall of the guide seat (7), a plurality of dust suppression nozzles (59) are circumferentially arranged at the bottom of the annular pipe (57), the second branch pipe (54) passes through the cleaning chamber (6) and a cleaning nozzle (50) is installed at the end; The outer wall of the guide rod (9) is provided with a transverse tooth groove (91); the bottom of the slider (10) is connected to a support seat (101); the top of the support seat (101) is connected to a conveying motor (102); the output end of the conveying motor (102) is connected to a driving gear (103); the driving gear (103) is meshedly connected to the transverse tooth groove (91); a push switch (92) is installed on the right side of the inner wall of the guide rod (9); the outer wall of the side bracket (12) is connected to an electric push rod (121); the free end of the electric push rod (121) is connected to a spur rack (122); the end of the deflection shaft (13) is connected to a matching gear (131); the matching gear (131) is meshedly connected to the spur rack (122); and the push switch (92) is electrically connected to the electric push rod (121).

2. A dust removal device for preparing coal powder according to claim 1, characterized in that: The top center of the pressure cover (14) is connected to a screw motor (141), the top output end of the screw motor (141) is connected to a bidirectional reciprocating screw (142), the outer wall of the bidirectional reciprocating screw (142) is screwed with a nut seat (143), the outer wall of the nut seat (143) is connected to L-shaped rods (144) around, the lower ends of the four L-shaped rods (144) are commonly connected to a lifting shell (15), and the pressure cover (14) is provided with a circular through hole (145) for the vertical part of the L-shaped rod (144) to pass through, and the inner wall of the circular through hole (145) is connected to a sealing ring.

3. A dust removal device for preparing coal powder according to claim 2, characterized in that: The lifting shell (15) is arranged in a cross-shaped structure. The top center of the lifting shell (15) is connected to a driving motor (151), and the bottom output end of the driving motor (151) is connected to a bevel gear 1 (152). The inner wall of the lifting shell (15) is connected to a bearing seat (153) around the periphery. A transmission shaft (154) is rotatably connected to the bearing seat (153). Both ends of the transmission shaft (154) are connected to a bevel gear 2 (155). The inner wall of the end of the lifting shell (15) is rotatably connected to a driven shaft (156). The upper part of the outer wall of the driven shaft (156) is connected to a bevel gear 3 (157). The lower part of the outer wall of the driven shaft (156) is connected to a spur gear (158). The bevel gears 2 (155) on both sides are meshedly connected to the bevel gear 1 (152) and the bevel gear 3 (157) respectively.

4. A dust removal device for preparing coal powder according to claim 3, characterized in that: The outer wall of the end of the lifting shell (15) is connected to the limit shell (16), and an annular seat (161) is arranged inside the limit shell (16). Rollers (162) are symmetrically provided between the upper and lower ends of the annular seat (161) and the inner wall of the limit shell (16), and a plurality of metal steel balls (163) are provided inside the rollers (162). A cleaning brush (164) is connected to the inner wall of the annular seat (161), and an annular tooth groove (165) is provided at the lower part of the outer wall of the annular seat (161), and the annular tooth groove (165) is meshedly connected to the spur gear (158).

5. A dust removal device for preparing coal powder according to claim 4, characterized in that: The bottom of the inner wall of the filter housing (8) is connected to a porous plate (81), four ventilation holes (82) are opened on the circumference of the porous plate (81), a filter cartridge (84) is installed on the top of the ventilation hole (82), the outer diameter of the filter cartridge (84) is smaller than the inner diameter of the annular seat (161), the upper part of the right side wall of the filter housing (8) is connected to an exhaust pipe (83), and the right end of the exhaust pipe (83) extends into the bottom of the inner cavity of the cleaning chamber (6).

6. A dust removal device for preparing coal powder according to claim 5, characterized in that: The filter cartridge (84) is made of stainless steel, and a plurality of filter mesh holes (841) are provided on the outer wall of the filter cartridge (84). A flange (842) is connected to the bottom of the filter cartridge (84), and a reinforcing rib (843) is welded between the flange (842) and the filter cartridge (84). The flange (842) and the porous plate (81) are fixedly connected by bolts, and a rubber ring (844) is abutted against the lower end of the flange (842).

7. A dust removal device for preparing coal powder according to claim 5, characterized in that: When the sliding block (10) abuts against the left end of the guide rod (9), the annular seat (161) and the corresponding filter cartridge (84) are arranged coaxially.

8. A dust removal device for preparing coal powder according to claim 1, characterized in that: The bottoms of the spray chamber (4) and the cleaning chamber (6) are both connected to a sewage pipe (61), a stop valve (69) is installed on the sewage pipe (61), a Y-shaped pipe (62) is connected between the two sewage pipes (61), the end of the Y-shaped pipe (62) is connected to a purification shell (63), a return pipe (64) is connected between the purification shell (63) and the water purification chamber (5), a circulation pump (65) is installed in the return pipe (64), and a filter layer (66), a sponge layer (67) and an activated carbon adsorption layer (68) are detachably installed in the purification shell (63).

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