Pulse dust removal device for feed production line

Abstract

The invention belongs to the technical field of dust separation, and particularly relates to a pulse dust removal device for a feed production line, the pulse dust removal device comprises a dust removal box body and a control cabinet arranged on one side of the dust removal box body, the bottom of the dust removal box body is fixedly communicated with a dust collection hopper assembly, and a dust inlet pipe is inserted into the upper end of the side wall of the dust collection hopper assembly; a plurality of dust filter bag assemblies are arranged in the dust removal box body, and a clean air exhaust pipe is inserted into the upper end of the side wall of the dust removal box body. The device can perform accurate pulse dust removal on the blocked dust filter bag, reduces unnecessary loss, is good in blockage removal timeliness, can delay the blockage process of the filter bag, facilitates feed dust filtration and separation, can guide air flow to be vertically downward during pulse dust removal, prevents secondary blockage of dust as much as possible, and improves the dust removal efficiency. And dust escape can be reduced when the filter bag fails to filter.

Description

Technical Field

[0001] The invention belongs to the technical field of dust separation, and in particular relates to a pulse dust removal device for a feed production line. Background Art

[0002] In the process of feed production, a large amount of dust will be generated in the crushing, screening, and transportation of materials. This dust will not only pollute the workshop environment and endanger the health of operators, but also affect the quality of feed and the normal operation of production equipment. Therefore, special dust removal equipment is needed to separate and remove the dust generated on the feed production line.

[0003] At present, there are many types of dust removal devices. In high-dust environments such as feed production, pulse dust collectors are relatively common. They use pulse valves to control compressed air to blow filter bags, causing the filter bags to expand instantly and shake off accumulated dust, thereby achieving the purpose of dust removal. They have the advantages of high dust removal efficiency, large processing air volume, stable operation, and convenient maintenance. For example, patent announcement number CN220513700U discloses a pulse dust removal device for high-quality feed production lines; During the operation of the pulse dust collector, the pulse cleaning mechanism is usually activated based on the pressure difference between the air inlet and the air outlet. When the filter bag is blocked due to dust accumulation, the airflow is blocked, which leads to an increase in the pressure difference between the air inlet and the air outlet. Once the set threshold is exceeded, the pulse blowing structure will work and pulse blowing will be performed on each filter bag in turn to remove the dust. However, in actual working conditions, the dust content entering the airflow and the airflow flow state are not uniform, which makes the blockage degree of each filter bag uneven. In this case, pulse cleaning of all filter bags in a fixed order will cause many problems. On the one hand, for those filters that are not seriously blocked, For filter bags, frequent cleaning operations will accelerate the loss of equipment. On the other hand, when a small number of filter bags are blocked first and the overall pressure difference has not reached the threshold, the remaining filter bags will be under increased pressure to maintain ventilation, causing the filter holes to suffer more serious wear and expansion, greatly shortening the service life of the filter bags, increasing equipment maintenance costs, and increasing the replacement frequency, which ultimately leads to a decline in the overall performance of the pulse dust collector, reduced economic benefits, and failure to achieve ideal dust removal effects and operating efficiency. Secondly, the dust generated by the feed raw materials during cleaning and other links contains more moisture and is easy to adhere to the outer surface of the filter bag, further increasing the frequency of pulse cleaning. Summary of the invention

[0004] The object of the present invention is to provide a pulse dust removal device for a feed production line in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical scheme: a pulse dust removal device for a feed production line, comprising a dust removal box and a control cabinet arranged on one side of the dust removal box, the bottom of the dust removal box is fixedly connected to a dust collecting hopper assembly, the upper end of the side wall of the dust collecting hopper assembly is plugged with a dust inlet pipe, a plurality of dust filter bag assemblies are arranged inside the dust removal box, the upper end of the side wall of the dust removal box is plugged with a clean air exhaust pipe, and further comprising: A mounting plate is fixedly mounted on the upper inner side of the dust removal box, a plurality of mounting holes are opened on the end surface of the mounting plate, and a mounting ring is installed inside each mounting hole, each dust filter bag assembly can be detachably mounted on the bottom of the matching mounting ring, a chassis is detachably mounted on the bottom of the dust filter bag assembly, and two connecting columns are fixedly arranged between the chassis and the matching mounting ring; A pulse cleaning unit is installed on the side wall of the dust removal box, and each air outlet end of the pulse cleaning unit is arranged above the corresponding mounting hole; A light heating component is installed on the upper end of the chassis and is arranged on the inner side of the dust filter bag component. The chassis is equipped with a heat conduction trigger component; The air guide unit is installed at the bottom of the chassis, and the control cabinet controls the operation of the air guide unit according to the electrical signal output by the heat conduction trigger component. Cylinders are arranged on both sides of the chassis, and the upper air inlet end of the cylinder and the air guide unit are fixedly connected with an upper inflation pipe, and the lower air inlet end of the cylinder and the air guide unit are fixedly connected with a lower inflation pipe. The telescopic ends of the two cylinders are fixedly connected with guide sliders, and the two guide sliders are slidably connected with the column wall of the connecting column on the same side, and the opposite ends of the two guide sliders are fixedly connected with a movable sleeve, and the movable sleeve is arranged on the outside of the dust filter bag assembly, and a support ring is arranged below the movable sleeve, and the support ring is fixedly plugged with the two cylinders, and an air pump is fixedly connected to the bottom of the chassis, and an air suction groove is provided inside the heat conduction trigger component, and the air suction groove is connected with the air suction end of the air pump, and a group of air suction holes are provided on the groove wall of the air suction groove, and an air collecting trigger component and a blocking component are provided inside the air guide unit, and the air collecting trigger component and the blocking component work in coordination with each other; The damage warning unit is installed on the inner side of the dust bag assembly, and the control cabinet controls the diversion unit to work according to the electrical signal output by the damage warning unit.

[0006] Preferably, the pulse cleaning unit includes a plurality of transverse tubes, the lower tube wall of each transverse tube is fixedly connected with a pulse blowing tube, and each pulse blowing tube is arranged above the corresponding mounting hole, and a blowing electric control valve is installed inside each pulse blowing tube, a compressed air generating assembly is installed on the outer wall of the dust removal box, and each transverse tube is connected with the air outlet end of the compressed air generating assembly, and a pulse electric control valve is installed inside each transverse tube, and the blowing electric control valve, compressed air generating assembly and pulse electric control valve are all electrically connected to the control cabinet.

[0007] Preferably, each of the light heating components includes an annular heat insulation cover installed on the end surface of the chassis, and an annular heating lamp tube is fixedly installed on the inner wall of the annular heat insulation cover, and the outer side of the annular heating lamp tube is provided with a conical transparent cover, and the conical transparent cover is fixedly connected to the inner wall of the annular heat insulation cover, and the annular heating lamp tube is electrically connected to the control cabinet.

[0008] Preferably, each of the thermal trigger components includes a fixed column fixedly mounted on the top of the chassis, and the fixed column is arranged on the inner side of the annular heat insulation cover, the outer wall of the fixed column is fixedly sleeved with a reflective film sleeve, a conical insulating thermal head is arranged above the fixed column, and an insulating sealing block is fixedly mounted on the bottom of the conical insulating thermal head, the insulating sealing block is installed with a thermistor, and the thermistor is arranged on the inner side of the conical insulating thermal head, the thermistor is electrically connected to the measurement circuit of the control cabinet, and the air suction groove is opened at the bottom of the fixed column.

[0009] Preferably, each of the air guide units includes an air collecting hood fixedly mounted on the bottom of the chassis, and a cylinder is fixedly mounted on the bottom of the air collecting hood, an upper air cavity and a lower air cavity are provided inside the cylinder, an upper air intake pipe is fixedly plugged into the upper air cavity, a lower air intake pipe is fixedly plugged into the lower air cavity, and both the upper air intake pipe and the lower air intake pipe are connected to the interior of the air collecting hood, an air intake electric-controlled valve is installed inside the upper air intake pipe and the lower air intake pipe, exhaust holes are provided on the side walls of the upper air cavity and the lower air cavity, and exhaust electric-controlled valves are installed inside the two exhaust holes, the two upper inflation tubes are fixedly connected to the upper air cavity, the two lower inflation tubes are fixedly connected to the lower air cavity, a flexible sealing sleeve is fixedly connected to the top outer edge of the support ring and the bottom of the movable sleeve, and the air pump is arranged on the inner side of the air collecting hood.

[0010] Preferably, each of the damage warning units includes a heat-insulating groove ring arranged on the inner side of the dust filter bag assembly, and an annular photosensitive resistor is fixedly installed inside the heat-insulating groove ring, and an insulation transparent ring is fixedly installed on the notch of the heat-insulating groove ring, and the light emitted by the annular heating lamp is irradiated to the photosensitive surface of the annular photosensitive resistor through the insulation transparent ring, the gas collecting trigger assembly is arranged inside the gas collecting hood, and the sealing assembly is connected to the cylinder, and the control cabinet controls the operation of the gas collecting trigger assembly according to the electrical signal output by the annular photosensitive resistor, and the control cabinet controls the operation of the sealing assembly and the diversion unit according to the electrical signal output by the gas collecting trigger assembly.

[0011] Preferably, each of the gas collecting trigger assemblies includes a hard tube fixedly mounted on the inner wall of the gas collecting hood, the side wall of the gas collecting hood is provided with a conical air hole connected to the hard tube, a breathable electric control valve is installed inside the hard tube, and an air pressure switch is fixedly mounted on the inner wall of the gas collecting hood, and the breathable electric control valve and the air pressure switch are both electrically connected to the control cabinet.

[0012] Preferably, each of the sealing components includes a mounting plate fixedly mounted on the outer wall of the cylinder, and two electromagnetic push rods are fixedly inserted on the end face of the mounting plate, the telescopic ends of the two electromagnetic push rods are commonly fixedly connected with a conical sealing sleeve, and the conical sealing sleeve is slidably connected to the cylinder, the outer diameter of the conical sealing sleeve is larger than the inner diameter of the support ring, and the electromagnetic push rods are electrically connected to the control cabinet.

[0013] Compared with the existing technology, the advantages of a pulse dust removal device for feed production line are: 1. Through the cooperation of the dust removal box, control cabinet, dust hopper assembly, dust inlet pipe, dust bag assembly, and clean air exhaust pipe, the dust generated during feed production can be filtered, and the installation plate, installation hole, installation ring, chassis, connecting column and pulse cleaning unit can be used to perform pulse cleaning on each dust bag assembly separately. Through the cooperation of the light heating assembly and the heat conduction trigger assembly, the heat can be changed synchronously based on the change of the airflow flowing through the dust bag assembly due to the blockage of the dust bag assembly, so that the pulse cleaning action is automatically started when the dust bag assembly is blocked. Since pulse cleaning is only performed on the blocked dust bag assembly, unnecessary cleaning work can be avoided for other dust bag assemblies that are not overly blocked, reducing losses, and clearing work can be performed in time when the dust bag assembly is blocked. Secondly, the heat generated by heating can be used to avoid excessively humid dust from adhering to the outer surface of the dust bag assembly, thereby delaying the blockage process of the dust bag assembly, which is beneficial to the filtering and separation of feed dust.

[0014] 2. By setting up the guide unit, the outer side of the dust filter bag assembly can be shielded when the dust filter bag assembly is pulse cleaned, so that the airflow generated during pulse cleaning is directed vertically downward, thereby driving all the dust to fall into the dust collecting hopper assembly as much as possible, and preventing the backblown dust from causing secondary blockage to the remaining dust filter bag assemblies.

[0015] 3. By setting up a damage warning unit, the light emitted by the light heating component can be used to monitor the cleanliness of the filtered airflow, and when the filter holes of the dust bag component are over-enlarged or damaged, the dust bag component can be automatically sealed in cooperation with the guide unit, thereby reducing the escape of unfiltered dust when the dust bag component fails to filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a pulse dust removal device for a feed production line provided by the present invention; Figure 2 It is a schematic diagram of the internal structure of a dust removal box of a pulse dust removal device for a feed production line provided by the present invention; Figure 3 It is a three-dimensional structural schematic diagram of a dust filter bag assembly of a pulse dust removal device for a feed production line provided by the present invention; Figure 4 It is a schematic diagram of the internal structure of a dust filter bag assembly of a pulse dust removal device for a feed production line provided by the present invention; Figure 5 The invention provides a pulse dust removal device for a feed production line. Figure 4 A magnified view of the structure of part A; Figure 6 The invention provides a pulse dust removal device for a feed production line. Figure 4 A magnified view of the structure of part B; Figure 7 The present invention is a schematic structural diagram of a plugging component of a pulse dust removal device for a feed production line.

[0017] In the figure: 1 dust removal box, 2 control cabinet, 3 dust hopper assembly, 4 dust inlet pipe, 5 dust filter bag assembly, 6 clean air outlet pipe, 7 mounting plate, 8 mounting hole, 9 mounting ring, 10 chassis, 11 connecting column, 12 pulse cleaning unit, 121 cross pipe, 122 pulse blowing pipe, 123 blowing electric control valve, 124 compressed air generating assembly, 125 pulse electric control valve, 13 light heating assembly, 131 annular heat insulation cover, 132 annular heating lamp tube, 133 conical transparent sleeve, 14 thermal trigger assembly, 141 fixed column, 142 reflective film sleeve, 143 conical insulation thermal head, 144 insulation blocking block, 145 thermal sensitive element, 15 guide unit, 151 air collection cover, 152 circular Column, 153 upper air cavity, 154 lower air cavity, 155 upper air intake pipe, 156 lower air intake pipe, 157 air intake electric control valve, 158 exhaust hole, 159 exhaust electric control valve, 16 damage warning unit, 161 heat insulation groove ring, 162 annular photosensitive resistor, 163 heat insulation transparent ring, 17 cylinder, 18 upper inflation tube, 19 lower inflation tube, 20 guide slider, 21 movable sleeve, 22 support ring, 23 flexible sealing sleeve, 24 air pump, 25 suction groove, 26 suction hole, 27 gas collection trigger assembly, 271 hard tube, 272 conical air hole, 273 air permeable electric control valve, 274 air pressure switch, 28 blocking assembly, 281 mounting plate, 282 electromagnetic push rod, 283 conical sealing sleeve. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figure 1-Figure 7As shown, a pulse dust removal device for a feed production line includes a dust removal box 1 and a control cabinet 2 arranged on one side of the dust removal box 1. The bottom of the dust removal box 1 is fixedly connected to a dust collecting hopper assembly 3, and the upper end of the side wall of the dust collecting hopper assembly 3 is plugged with a dust inlet pipe 4. The interior of the dust removal box 1 is provided with a plurality of dust filter bag assemblies 5, and the upper end of the side wall of the dust removal box 1 is plugged with a clean air exhaust pipe 6. It also includes: a mounting plate 7, the mounting plate 7 is fixedly mounted on the upper side of the interior of the dust removal box 1, the end surface of the mounting plate 7 is provided with a plurality of mounting holes 8, and a mounting ring 9 is installed inside each mounting hole 8, each dust filter bag assembly 5 can be detachably mounted on the bottom of the matching mounting ring 9, the bottom of the dust filter bag assembly 5 is detachably mounted with a chassis 10, and two connecting columns 11 are fixedly provided between the chassis 10 and the matching mounting ring 9. The pulse cleaning unit 12 is installed on the side wall of the dust removal box 1, and each air outlet end of the pulse cleaning unit 12 is arranged above the corresponding installation hole 8. The pulse cleaning unit 12 includes multiple transverse tubes 121. The lower side tube wall of each transverse tube 121 is fixedly plugged with a pulse blowing tube 122, and each pulse blowing tube 122 is arranged above the corresponding installation hole 8. A blowing electric control valve 123 is installed inside each pulse blowing tube 122. A compressed air generating assembly 124 is installed on the outer wall of the dust removal box 1, and each transverse tube 121 is connected to the air outlet end of the compressed air generating assembly 124. A pulse electric control valve 125 is installed inside each transverse tube 121. The blowing electric control valve 123, the compressed air generating assembly 124 and the pulse electric control valve 125 are all electrically connected to the control cabinet 2.

[0020] The light heating assembly 13 is installed at the upper end of the chassis 10 and is arranged on the inner side of the dust filter bag assembly 5. Each light heating assembly 13 includes an annular heat insulation cover 131 installed on the end face of the chassis 10, and an annular heating lamp tube 132 is fixedly installed on the inner wall of the annular heat insulation cover 131. The outer side of the annular heating lamp tube 132 is provided with a conical transparent cover 133, and the conical transparent cover 133 is fixedly connected to the inner wall of the annular heat insulation cover 131. The annular heating lamp tube 132 is electrically connected to the control cabinet 2.

[0021] The chassis 10 is installed with a thermal trigger component 14, each thermal trigger component 14 includes a fixed column 141 fixedly installed on the top of the chassis 10, and the fixed column 141 is arranged on the inner side of the annular heat insulation cover 131, and the outer wall of the fixed column 141 is fixedly sleeved with a reflective film sleeve 142, a conical insulating thermal head 143 is arranged above the fixed column 141, and an insulating blocking block 144 is fixedly installed at the bottom of the conical insulating thermal head 143, the insulating blocking block 144 is installed with a thermistor 145, and the thermistor 145 is arranged on the inner side of the conical insulating thermal head 143, the thermistor 145 is electrically connected to the measurement circuit of the control cabinet 2, the air intake groove 25 is opened at the bottom of the fixed column 141, and within a certain temperature range, the thermistor 145 has its own resistance increasing as the temperature decreases.

[0022] The air guide unit 15 is installed at the bottom of the chassis 10. The control cabinet 2 controls the air guide unit 15 to work according to the electrical signal output by the heat conduction trigger component 14. Cylinders 17 are arranged on both sides of the chassis 10. The upper air inlet end of the cylinder 17 is fixedly connected with the air guide unit 15 through an upper air filling pipe 18. The lower air inlet end of the cylinder 17 is fixedly connected with the air guide unit 15 through a lower air filling pipe 19. The telescopic ends of the two cylinders 17 are fixedly connected with guide sliders 20, and the two guide sliders 20 are slidably connected with the column wall of the connecting column 11 on the same side. The opposite ends of the two guide sliders 20 are fixedly connected with a movable sleeve 21. , and the movable sleeve 21 is sleeved on the outside of the dust bag assembly 5, a support ring 22 is arranged below the movable sleeve 21, and the support ring 22 is fixedly plugged with the two cylinders 17, an air pump 24 is fixedly connected to the bottom of the chassis 10, an air suction groove 25 is opened inside the heat conduction trigger assembly 14, and the air suction groove 25 is connected to the air suction end of the air pump 24, and a group of air suction holes 26 are opened on the groove wall of the air suction groove 25, and an air collection trigger assembly 27 and a plugging assembly 28 are arranged inside the guide unit 15, and the air collection trigger assembly 27 and the plugging assembly 28 work in cooperation with each other, and each guide unit 15 includes a collection trigger assembly 27 fixedly installed at the bottom of the chassis 10. The air hood 151 is provided with a cylinder 152 fixedly mounted at the bottom of the air hood 151, an upper air cavity 153 and a lower air cavity 154 are provided inside the cylinder 152, an upper air inlet pipe 155 is fixedly plugged into the upper air cavity 153, a lower air inlet pipe 156 is fixedly plugged into the lower air cavity 154, and both the upper air inlet pipe 155 and the lower air inlet pipe 156 are connected to the interior of the air hood 151, an air inlet electric control valve 157 is installed inside the upper air inlet pipe 155 and the lower air inlet pipe 156, exhaust holes 158 are provided on the side walls of the upper air cavity 153 and the lower air cavity 154, and exhaust electric control valves 157 are installed inside the two exhaust holes 158. 9. The two upper air-inflating tubes 18 are both fixedly connected to the upper air cavity 153, and the two lower air-inflating tubes 19 are both fixedly connected to the lower air cavity 154. The top outer edge of the support ring 22 and the bottom of the movable sleeve 21 are fixedly connected with a flexible sealing sleeve 23. The air pump 24 is arranged on the inner side of the air collecting cover 151. The air inlet electric control valve 157, the exhaust electric control valve 159 and the air pump 24 are all electrically connected to the control cabinet 2. The cylinder 17 includes components such as a cylinder barrel, a piston rod, a piston, a seal, and a pipe joint. The lower air-inflating tube 19 can inflate air to the bottom of the piston to move the piston upward, and the upper air-inflating tube 18 can inflate air to the top of the piston to move the piston downward.

[0023] The damage warning unit 16 is installed on the inner side of the dust bag assembly 5. The control cabinet 2 controls the diversion unit 15 to work according to the electrical signal output by the damage warning unit 16. Each damage warning unit 16 includes a heat insulation groove ring 161 arranged on the inner side of the dust bag assembly 5, and a ring-shaped photosensitive resistor 162 is fixedly installed inside the heat insulation groove ring 161. A heat insulation transparent ring 163 is fixedly installed at the notch of the heat insulation groove ring 161. The light emitted by the annular heating lamp 132 passes through the heat insulation transparent ring 163 to irradiate the photosensitive surface of the annular photosensitive resistor 162. The gas collection trigger component 27 is arranged on the gas collection cover 151. Internally, the sealing component 28 is connected to the cylinder 152, and the control cabinet 2 controls the operation of the gas collecting trigger component 27 according to the electrical signal output by the annular photosensitive resistor 162. The control cabinet 2 controls the operation of the sealing component 28 and the diversion unit 15 according to the electrical signal output by the gas collecting trigger component 27. The photosensitive element of the annular photosensitive resistor 162 will decrease its own resistance synchronously as the light intensity increases within a certain range of light intensity. The heat insulation groove ring 161 is an annular plate with an annular groove at the bottom. The annular photosensitive resistor 162 and the heat insulation transparent ring 163 are both installed in the annular groove.

[0024] Each gas collecting trigger assembly 27 includes a hard tube 271 fixedly mounted on the inner wall of the gas collecting hood 151, and a conical air hole 272 connected to the hard tube 271 is provided on the side wall of the gas collecting hood 151. A breathable electric control valve 273 is installed inside the hard tube 271, and an air pressure switch 274 is fixedly mounted on the inner wall of the gas collecting hood 151. The breathable electric control valve 273 and the air pressure switch 274 are both electrically connected to the control cabinet 2. An air pressure sensing sheet is provided at the moving contact of the air pressure switch 274. Under the action of air pressure, the sensing sheet will deform, thereby pushing the moving contact to close. When the air pressure reaches the set value, the moving contact of the air pressure switch 274 will be closed by back pressure.

[0025] Each blocking component 28 includes a mounting plate 281 fixedly mounted on the outer wall of the cylinder 152, and two electromagnetic push rods 282 are fixedly inserted on the end face of the mounting plate 281. The telescopic ends of the two electromagnetic push rods 282 are commonly fixedly connected with a conical sealing sleeve 283, and the conical sealing sleeve 283 is slidably connected to the cylinder 152. The outer diameter of the conical sealing sleeve 283 is larger than the inner diameter of the support ring 22. The electromagnetic push rod 282 is electrically connected to the control cabinet 2. When the electromagnetic part inside the electromagnetic push rod 282 is energized, it will generate a magnetic repulsion force on the permanent magnet, so that its telescopic end can be pushed outward by the permanent magnet.

[0026] The operating principle of the present invention is now described as follows: when treating feed production dust, the dust-containing airflow enters through the dust inlet pipe 4, the dust airflow enters the dust removal box 1, and passes through each dust filter bag assembly 5 and is discharged through the clean air discharge pipe 6, and the dust filter bag assembly 5 can intercept the dust in the dust airflow on the inner side of the dust removal box 1, so that the dust generated during feed production can be collected, and when the dust filtration is started, the control cabinet 2 is started; After the control cabinet 2 is started, each annular heating lamp 132 will be started synchronously (the set heating temperature is 50℃±1℃), and the annular heating lamp 132 will emit light, which will be projected to the fixed column 141. Under the action of the reflective film sleeve 142, part of the light will be reflected to the side wall of the dust filter bag assembly 5, so that the dust filter bag assembly 5 can be heated (due to heat loss, the temperature of the side wall of the dust filter bag assembly 5 is about 40℃). As the dust filter bag assembly 5 heats up, the temperature of the dust attached to the outer surface of the dust filter bag assembly 5 will also rise (due to the dust Dust adheres to the surface of the dust filter bag assembly 5, and the airflow flowing through the dust attachment position is reduced, so the dust temperature at this position will increase). The moisture contained in the increased dust is easily volatilized under the action of the surrounding airflow, thereby reducing the moisture in the dust, and trying to avoid the dust from adhering to the outer surface of the dust filter bag assembly 5 due to moisture, making it easier for the dust to separate from the dust filter bag assembly 5. Since the insulating blocking block 144 is also exposed to light, the temperature at the thermistor 145 will also rise. However, since the external wind flow passes through the dust filter bag assembly 5 and then flows through the fixed The column 141, the conical insulating heat-conducting head 143 and the insulating blocking block 144 are located at the positions of the thermistor 145. Therefore, the wind flow will take away part of the heat around the thermistor 145, making the temperature at the thermistor 145 relatively low (usually around 35°C). However, as the dust adheres to the outer surface of the dust filter bag assembly 5, the airflow flowing through the inside of the dust filter bag assembly 5 will gradually decrease. At this time, since the airflow flowing through the thermistor 145 decreases, the heat loss rate of the thermistor 145 slows down, so the temperature at the thermistor 145 will gradually increase. In the range of 0℃ to 150℃, its own resistance decreases as the temperature rises, and the measuring circuit of the control cabinet 2 will measure the electrical signal strength of the connection circuit of the thermistor 145. When the outer surface of the dust filter bag assembly 5 is covered by dust adhesion to about 70%, the temperature at the thermistor 145 will gradually rise to above 45℃. At this time, the measuring circuit of the control cabinet 2 measures that the electrical signal strength of the connection circuit of the thermistor 145 is higher than 10mA, and then the control cabinet 2 will start the dust cleaning work of the dust filter bag assembly 5 at this position; When the control cabinet 2 starts the dust cleaning operation, it will control the air pump 24 at the corresponding dust filter bag assembly 5 to perform a timed operation for 1 minute, and control the air intake electric control valve 157 inside the lower air intake pipe 156 on this side and the exhaust electric control valve 159 at the upper air cavity 153 to be energized and opened for 1 minute. At this time, the air pump 24 will inhale clean air from the inside of the dust filter bag assembly 5 through the air intake groove 25 and the air intake hole 26, and transport the air from the lower air intake end of the two cylinders 17 to the inside of the cylinder 17 through the air collecting cover 151, the lower air intake pipe 156, the lower air cavity 154 and the lower inflation pipe 19. Since the air pressure under the piston inside the cylinder 17 increases, the piston of the cylinder 17 will push its telescopic end to move the two guide sliders 20 upward (cylinder 1 When the piston moves upward, the air above the piston is discharged into the upper air chamber 153 through the upper inflation pipe 18, and is discharged through the exhaust hole 158 inside the upper air chamber 153), thereby driving the movable sleeve 21 to move upward synchronously, and then the flexible sealing sleeve 23 can be stretched and unfolded upward. After the air pump 24 and the air intake electric control valve 157 finish working for 1 minute, the air intake electric control valve 157 inside the lower air intake pipe 156 and the exhaust electric control valve 159 at the upper air chamber 153 are both powered off and closed, and the air pump 24 stops working. At this time, the top of the movable sleeve 21 is against the bottom of the mounting ring 9 on the same side, so that the movable sleeve 21 and the unfolded flexible sealing sleeve 23 can be used to cover the side wall of the dust filter bag assembly 5 at this position; Subsequently, the control cabinet 2 will control the operation of the spraying electric control valve 123, the pulse electric control valve 125 and the compressed air generating assembly 124 at the corresponding position, the pulse electric control valve 125 and the spraying electric control valve 123 will be powered on and opened, and the compressed air generating assembly 124 can supply compressed air to the inside of the transverse pipe 121 (the compressed air is generated by the air compressor and stored in the air storage tank to ensure that there is sufficient pressure and air volume to supply the dust cleaning demand, and the transverse pipe 121 is connected to the air storage tank), and the air flow inside the transverse pipe 121 will be ejected through the pulse spray pipe 122 opened by the spraying electric control valve 123, so that the air can be sprayed to the dust filter bag assembly 5 at that position. The high-pressure airflow is sprayed inside. Under the action of the high-pressure airflow, the dust attached to the outer surface of the dust bag assembly 5 will be blown off by the back-blowing. Since the outer side of the dust bag assembly 5 is shielded by the movable sleeve 21 and the flexible sealing sleeve 23, the back-blown airflow carries the shaken-off dust and is sprayed downward along the flexible sealing sleeve 23. Since the flexible sealing sleeve 23 guides the pulsed airflow downward, the shaken-off dust is gathered and the force of the dust falling downward is increased. Therefore, the shaken-off dust can be made to fall directly into the dust collecting hopper assembly 3 as much as possible, reducing the possibility that the shaken-off dust will be attached to the outer surface of the dust bag assembly 5 again due to the flow of airflow. After the spraying electric control valve 123, the pulse electric control valve 125 and the compressed air generating assembly 124 have finished working, the control cabinet 2 will control the air pump 24 to work again. At the same time, the control cabinet 2 controls the air intake electric control valve 157 inside the upper air intake pipe 155 and the exhaust electric control valve 159 on the side wall of the lower air cavity 154 to be powered on and opened. At this time, the pistons inside the two cylinders 17 drive the movable sleeve 21 to move back, and the excess air under the piston of the cylinder 17 is discharged through the exhaust hole 158 of the lower air cavity 154. After the air pump 24 works again for 1 minute, the control cabinet 2 controls the air pump 24 to stop working, and controls the air intake electric control valve 157 inside the upper air intake pipe 155 and the exhaust electric control valve 159 on the side wall of the lower air cavity 154 to be powered off and closed. At this point, the cleaning work of a single dust filter bag assembly 5 is completed. Since only the blocked dust filter bag assembly 5 is cleaned, unnecessary cleaning work can be reduced. Secondly, after the dust filter bag assembly 5 is blocked, the cleaning work of the dust filter bag assembly 5 can be started in time. The control cabinet 2 numbers each thermal element 145 (for example, number 1, number 2, number 3, etc.). When the measurement circuit of the control cabinet 2 measures that the electrical signal strength of the connection circuit of more than one thermal element 145 is higher than 10mA, under the control of the control cabinet 2, the dust filter bag assembly 5 corresponding to the thermal element 145 with the smallest number is cleaned first, and then the remaining dust filter bag assemblies 5 are cleaned in order from small to large numbers. When the control cabinet 2 has started the cleaning work for one of the dust filter bag assemblies 5, the control cabinet 2 will control the current cleaning work to end, and then clean other dust filter bag assemblies 5 according to the number size, so as to ensure the cleaning effect of each dust filter bag assembly 5. In the process of filtering and separating feed dust, due to long-term effects of wind pressure, dust impact, etc., the filter holes of the dust filter bag assembly 5 will be worn, enlarged, or even damaged. At this time, the dust filtering effect of the dust filter bag assembly 5 on the dust becomes worse, and part of the dust will be discharged along with the airflow through the dust filter bag assembly 5. When such a phenomenon occurs, since the airflow entering the dust filter bag assembly 5 carries dust that has not been effectively filtered, the dust will block part of the light projected to the heat-insulating transparent ring 163, thereby reducing the light intensity received by the annular photosensitive resistor 162, thereby reducing the electrical conductivity of the photosensitive element inside the annular photosensitive resistor 162. When the measurement circuit of the control cabinet 2 detects that the electrical signal strength of the connection circuit of the annular photosensitive resistor 162 is lower than 4mA, the control cabinet 2 will control the air pump 24 to work and control the ventilation electric control valve 273 at this position to open. At this time, part of the air delivered to the inside of the air collecting cover 151 by the air pump 24 will be discharged through the conical ventilation hole 272. Since the aperture of the conical ventilation hole 272 is limited (the aperture of the air outlet end is 1mm), the air delivered to the inside of the air collecting cover 151 by the air pump 24 cannot be discharged in time. As the air inside the air collecting cover 151 becomes higher and higher, the moving contact of the air pressure switch 274 will be closed by the back pressure under the action of the air pressure (the air pressure switch 274 is closed by the back pressure). The moving contact of the pressure switch 274 is provided with an air pressure sensing sheet. Under the action of air pressure, the sensing sheet will be deformed, thereby pushing the moving contact to close. When the air pressure reaches 1MPa, the moving contact of the air pressure switch 274 will be closed by back pressure). At this time, the control cabinet 2 will receive the closing electrical signal of the air pressure switch 274. The control cabinet 2 will determine that the dust filter bag assembly 5 at this position has a poor filtering effect and cannot effectively filter dust. At this time, the control cabinet 2 will start the sealing action of the dust filter bag assembly 5 on this side (because the intake pressure is not continuously stable, the intake pressure may fluctuate and increase. At this time, due to the excessive intake pressure, the mesh of the dust filter bag assembly 5 is squeezed The pressure fluctuation is only short-lived, so the air pressure delivered to the air collecting hood 151 by the air pump 24 is not enough to close the moving contact of the air pressure switch 274. Therefore, the false triggering phenomenon caused by such occasional dust escape can be reduced). At the same time, an alarm message is sent through its own alarm module (such as a buzzer). After receiving the alarm message, the personnel should replace the problematic dust filter bag assembly 5 in time (wherein, the control cabinet 2 will display the position or number of the problematic dust filter bag assembly 5 through its own display screen, so that the staff can replace the problematic dust filter bag assembly 5); When the control cabinet 2 starts to seal the dust bag assembly 5, the control cabinet 2 will control the air pump 24, the air inlet electric control valve 157 inside the lower air inlet pipe 156 and the exhaust electric control valve 159 on the side wall of the upper air cavity 153 to work again for 1 minute, the air pump 24 works again, and the corresponding air inlet electric control valve 157 and exhaust electric control valve 159 are powered on and opened again, so that the movable sleeve 21 rises and abuts against the mounting ring 9. At the same time, the control cabinet 2 controls the two electromagnetic push rods 282 to be powered on, and the two electromagnetic push rods 282 are powered on. The push rod 282 can push the conical sealing sleeve 283 on the same side to move upward and abut against the support ring 22, thereby sealing the inner hole of the support ring 22. At this time, since the dust filter bag assembly 5 at this position is blocked, the dust airflow will not pass through the dust filter bag assembly 5, thereby preventing unfiltered dust from escaping. After the timing of 1 minute of work is over, the air pump 24 is powered off and stops working, and the air intake electric control valve 157 inside the lower air intake pipe 156 and the exhaust electric control valve 159 on the side wall of the upper air cavity 153 are powered off and closed again.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pulse dust removal device for a feed production line, comprising a dust removal box (1) and a control cabinet (2) arranged on one side of the dust removal box (1), the bottom of the dust removal box (1) is fixedly connected to a dust collecting hopper assembly (3), the upper end of the side wall of the dust collecting hopper assembly (3) is plugged with a dust inlet pipe (4), a plurality of dust filter bag assemblies (5) are arranged inside the dust removal box (1), and the upper end of the side wall of the dust removal box (1) is plugged with a clean air exhaust pipe (6), characterized in that: Also includes: A mounting plate (7) is fixedly mounted on the upper inner side of the dust removal box (1); a plurality of mounting holes (8) are provided on the end surface of the mounting plate (7); a mounting ring (9) is installed inside each mounting hole (8); each dust filter bag assembly (5) can be detachably mounted on the bottom of a matching mounting ring (9); a bottom plate (10) is detachably mounted on the bottom of the dust filter bag assembly (5); and two connecting columns (11) are fixedly provided between the bottom plate (10) and the matching mounting ring (9); A pulse cleaning unit (12) is installed on the side wall of the dust removal box (1), and each air outlet end of the pulse cleaning unit (12) is arranged above a corresponding mounting hole (8); A light-irradiation heating component (13) is mounted on the upper end of the chassis (10) and is arranged on the inner side of the dust filter bag component (5); the chassis (10) is equipped with a heat-conducting trigger component (14); A guide unit (15) is installed at the bottom of the chassis (10); the control cabinet (2) controls the operation of the guide unit (15) according to an electrical signal output by the heat conduction trigger component (14); cylinders (17) are provided on both sides of the chassis (10); an upper air inlet end of the cylinder (17) and the guide unit (15) are fixedly connected to an upper air filling pipe (18); a lower air inlet end of the cylinder (17) and the guide unit (15) are fixedly connected to a lower air filling pipe (19); the telescopic ends of the two cylinders (17) are fixedly connected to guide sliders (20); the two guide sliders (20) are slidably connected to the column wall of the connecting column (11) on the same side; and opposite ends of the two guide sliders (20) are fixedly connected to the connecting column (11) on the same side. A movable sleeve (21) is connected, and the movable sleeve (21) is sleeved on the outside of the dust bag assembly (5); a support ring (22) is arranged below the movable sleeve (21), and the support ring (22) is fixedly plugged with the two cylinders (17); an air pump (24) is fixedly connected to the bottom of the chassis (10); an air suction groove (25) is provided inside the heat conduction trigger assembly (14), and the air suction groove (25) is connected to the air suction end of the air pump (24); a group of air suction holes (26) are provided on the groove wall of the air suction groove (25); an air collection trigger assembly (27) and a blocking assembly (28) are provided inside the guide unit (15), and the air collection trigger assembly (27) and the blocking assembly (28) work in coordination with each other; The damage warning unit (16) is installed on the inner side of the dust bag assembly (5), and the control cabinet (2) controls the flow guide unit (15) to operate according to the electrical signal output by the damage warning unit (16).

2. A pulse dust removal device for a feed production line according to claim 1, characterized in that: The pulse cleaning unit (12) comprises a plurality of transverse tubes (121), the lower tube wall of each transverse tube (121) being fixedly connected with a pulse blowing tube (122), and each pulse blowing tube (122) being arranged above a corresponding mounting hole (8), and each pulse blowing tube (122) being internally installed with a blowing electric control valve (123), and the outer wall of the dust removal box (1) being installed with a compressed air generating assembly (124), and each transverse tube (121) being connected with an air outlet end of the compressed air generating assembly (124), and each transverse tube (121) being internally installed with a pulse electric control valve (125), and the blowing electric control valve (123), the compressed air generating assembly (124) and the pulse electric control valve (125) being electrically connected to the control cabinet (2).

3. A pulse dust removal device for a feed production line according to claim 1, characterized in that: Each of the light-irradiating heating assemblies (13) comprises an annular heat-insulating cover (131) mounted on the end surface of the chassis (10), and an annular heating lamp tube (132) is fixedly mounted on the inner wall of the annular heat-insulating cover (131), a conical transparent cover (133) is provided on the outer side of the annular heating lamp tube (132), and the conical transparent cover (133) is fixedly connected to the inner wall of the annular heat-insulating cover (131), and the annular heating lamp tube (132) is electrically connected to the control cabinet (2).

4. A pulse dust removal device for a feed production line according to claim 3, characterized in that: Each of the thermally conductive triggering components (14) comprises a fixed column (141) fixedly mounted on the top of the chassis (10), and the fixed column (141) is arranged on the inner side of the annular heat insulation cover (131), and the outer wall of the fixed column (141) is fixedly sleeved with a reflective film sleeve (142), a conical insulating thermal conductive head (143) is arranged above the fixed column (141), and an insulating blocking block (144) is fixedly mounted on the bottom of the conical insulating thermal conductive head (143), a thermistor (145) is installed on the insulating blocking block (144), and the thermistor (145) is arranged on the inner side of the conical insulating thermal conductive head (143), the thermistor (145) is electrically connected to the measurement circuit of the control cabinet (2), and the air suction groove (25) is opened at the bottom of the fixed column (141).

5. A pulse dust removal device for a feed production line according to claim 4, characterized in that: Each of the air guide units (15) comprises an air collecting hood (151) fixedly mounted on the bottom of the chassis (10), and a cylinder (152) is fixedly mounted on the bottom of the air collecting hood (151), an upper air cavity (153) and a lower air cavity (154) are provided inside the cylinder (152), an upper air intake pipe (155) is fixedly plugged into the upper air cavity (153), and a lower air intake pipe (156) is fixedly plugged into the lower air cavity (154), and both the upper air intake pipe (155) and the lower air intake pipe (156) are connected to the interior of the air collecting hood (151), and both the upper air intake pipe (155) and the lower air intake pipe (156) are installed with an air intake electric control valve (157), and the The side walls of the upper air cavity (153) and the lower air cavity (154) are both provided with exhaust holes (158), and exhaust electric control valves (159) are installed inside the two exhaust holes (158). The two upper air filling tubes (18) are both fixedly connected to the upper air cavity (153), and the two lower air filling tubes (19) are both fixedly connected to the lower air cavity (154). The top outer edge of the support ring (22) and the bottom of the movable sleeve (21) are fixedly connected with a flexible sealing sleeve (23). The air pump (24) is arranged on the inner side of the air collecting cover (151), and the air intake electric control valve (157), the exhaust electric control valve (159) and the air pump (24) are all electrically connected to the control cabinet (2).

6. A pulse dust removal device for a feed production line according to claim 5, characterized in that: Each of the damage warning units (16) comprises a heat-insulating groove ring (161) arranged on the inner side of the dust bag assembly (5), and an annular photosensitive resistor (162) is fixedly installed inside the heat-insulating groove ring (161), and a heat-insulating transparent ring (163) is fixedly installed at the notch of the heat-insulating groove ring (161), and light emitted by the annular heating lamp (132) passes through the heat-insulating transparent ring (163) to irradiate the photosensitive surface of the annular photosensitive resistor (162), the gas collection trigger assembly (27) is arranged inside the gas collection cover (151), and the blocking assembly (28) is connected to the cylinder (152), and the control cabinet (2) controls the gas collection trigger assembly (27) to work according to the electrical signal output by the annular photosensitive resistor (162), and the control cabinet (2) controls the blocking assembly (28) and the guide unit (15) to work according to the electrical signal output by the gas collection trigger assembly (27).

7. A pulse dust removal device for a feed production line according to claim 6, characterized in that: Each of the gas collecting trigger assemblies (27) comprises a hard tube (271) fixedly mounted on the inner wall of the gas collecting hood (151); a conical air hole (272) connected to the hard tube (271) is provided on the side wall of the gas collecting hood (151); a gas permeable electric control valve (273) is installed inside the hard tube (271); a gas pressure switch (274) is fixedly mounted on the inner wall of the gas collecting hood (151); and both the gas permeable electric control valve (273) and the gas pressure switch (274) are electrically connected to the control cabinet (2).

8. A pulse dust removal device for a feed production line according to claim 7, characterized in that: Each of the blocking components (28) comprises a mounting plate (281) fixedly sleeved on the outer wall of the cylinder (152), and two electromagnetic push rods (282) are fixedly plugged into the end surface of the mounting plate (281), the telescopic ends of the two electromagnetic push rods (282) are fixedly connected to a conical sealing sleeve (283), and the conical sealing sleeve (283) is slidably connected to the cylinder (152), the outer diameter of the conical sealing sleeve (283) is greater than the inner diameter of the support ring (22), and the electromagnetic push rod (282) is electrically connected to the control cabinet (2).

Images