CN222225444U - Movable dust removal discharge hopper - Google Patents
Movable dust removal discharge hopper Download PDFInfo
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- CN222225444U CN222225444U CN202420324354.0U CN202420324354U CN222225444U CN 222225444 U CN222225444 U CN 222225444U CN 202420324354 U CN202420324354 U CN 202420324354U CN 222225444 U CN222225444 U CN 222225444U
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- 239000000428 dust Substances 0.000 title claims abstract description 303
- 238000001914 filtration Methods 0.000 claims description 25
- 210000000078 claw Anatomy 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 15
- 230000005484 gravity Effects 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000011362 coarse particle Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
本申请涉及除尘料斗的技术领域，尤其涉及移动式除尘卸料斗，为了解决卸料时吸尘器难以将敞开的料斗内的全部粉尘吸走、造成大量粉尘排放的问题，其包括工作架，所述工作架上设置有外斗，所述外斗的顶端安装在工作架上，所述外斗的底端悬空设置；所述外斗内安装有内斗，所述内斗安装在外斗的顶端，所述内斗的底端悬空设置；所述外斗与内斗之间形成除尘风道，所述外斗上安装有负压装置，所述负压装置的吸风口设置在除尘风道内；所述负压装置的吸风口安装有过滤装置；所述内斗内安装有蔽尘装置。本申请具有减少卸料过程中粉尘排放的效果。
The present application relates to the technical field of dust removal hoppers, and in particular to a mobile dust removal unloading hopper. In order to solve the problem that it is difficult for a vacuum cleaner to suck away all the dust in an open hopper during unloading, resulting in a large amount of dust emission, the present application includes a working frame, an outer hopper is arranged on the working frame, the top of the outer hopper is mounted on the working frame, and the bottom of the outer hopper is suspended in the air; an inner hopper is installed in the outer hopper, the inner hopper is installed at the top of the outer hopper, and the bottom of the inner hopper is suspended in the air; a dust removal air duct is formed between the outer hopper and the inner hopper, a negative pressure device is installed on the outer hopper, and the air suction port of the negative pressure device is arranged in the dust removal air duct; a filter device is installed at the air suction port of the negative pressure device; and a dust shielding device is installed in the inner hopper. The present application has the effect of reducing dust emission during unloading.
Description
Technical Field
The application relates to the technical field of dust removal hoppers, in particular to a movable dust removal discharge hopper.
Background
In the grain transportation industry, it is often necessary to discharge grains from a pallet or train to a destination using a claw-type engagement hopper driven by a crane. In the unloading process, grains directly enter the hopper from a high position, collide with the inner wall of the hopper and lift a large amount of dust, and the dust enters the air to seriously influence the air quality. Therefore, a dust removal device is needed to remove dust in the unloading process.
The dust removing device in the prior art is usually a mobile dust collector, and an air suction inlet of the mobile dust collector is placed in a hopper to suck dust. In order to improve the dust collection effect, the power of the dust collector is usually increased, but the excessive suction force is easy to suck away grain particles, so that the total weight of grains is reduced. Because the dust collector in the hopper has limited power, the dust collector is difficult to suck all dust in the opened hopper, and a large amount of dust is discharged, so the dust collector needs to be improved.
Disclosure of utility model
In order to reduce dust emission in the unloading process, the application provides a movable dust removal unloading hopper.
The application provides a movable dust removal discharge hopper which adopts the following technical scheme:
The movable dust removing and discharging hopper comprises a working frame, wherein an outer hopper is arranged on the working frame, the top end of the outer hopper is arranged on the working frame, the bottom end of the outer hopper is arranged in a suspended mode, an inner hopper is arranged in the outer hopper, the top end of the inner hopper is arranged in a suspended mode, a dust removing air channel is formed between the outer hopper and the inner hopper, a negative pressure device is arranged on the outer hopper, an air suction inlet of the negative pressure device is arranged in the dust removing air channel, a filtering device is arranged at the air suction inlet of the negative pressure device, and a dust shielding device is arranged in the inner hopper.
Through adopting above-mentioned technical scheme, operating personnel promotes the work frame and removes the position that needs the discharge with the work frame, and the bottom of outer bucket aligns the conveyer belt this moment. And starting the negative pressure device, wherein the negative pressure device forces air in the dust removal air channel to enter the suction inlet of the negative pressure device through the filtering device and then to be discharged outside the outer bucket, and negative pressure is formed in the dust removal air channel to force air in the inner bucket to enter the outer bucket through the dust shielding device and then enter the dust removal air channel. The operator controls the material claw to clamp the grain and then transfer the grain to the upper part of the inner hopper, the grain is put into the inner hopper, and the grain passes through the dust shielding device and enters the outer hopper. The dust that grain and dust shielding device collide and raise is driven by the air current that negative pressure device formed and passes dust shielding device and get into in the outer fight, and the dust in the outer fight is difficult to get into in the inner fight through dust shielding device, leads to the dust reverse escape to the air. The dust entering the outer hopper and the dust raised by collision between the grain and the inner wall of the outer hopper are driven by the air flow formed by the negative pressure device to enter the dust removing air duct, the air flow drives the dust to pass through the filtering device, the filtering device keeps the dust at the air suction inlet of the filtering device and then slides down along the inner wall of the outer hopper, and the clean air flows out along with the grain from the discharge outlet of the outer hopper, passes through the filtering device and enters the negative pressure device, and is discharged into the outside air by the negative pressure device. The dust emission in the unloading process is reduced, and the method is environment-friendly.
Optionally, the included angle between the inclined side wall of the outer bucket and the horizontal direction is 50 degrees, and the inclined side wall of the inner bucket is parallel to the inclined side wall of the outer bucket.
Through adopting above-mentioned technical scheme, the contained angle of outer bucket slope lateral wall 50 degrees compares in the obtuse angle and can guide grain to leave outer bucket under the effect of gravity fast, also reduces the grain impact and causes the grain dispersion to raise a large amount of dust's possibility on the outer bucket inner wall that the slope is mild. The air flow at the edge of the inner hopper moves along the inclined inner wall of the inner hopper in a direction away from the dust shielding device, the air flow at the center of the inner hopper vertically moves downwards, and the negative pressure device controls the air flow to rotate in a direction close to the negative pressure device and moves along the inclined outer wall of the inner hopper and the inclined inner wall of the outer hopper in a direction close to the negative pressure device. The air flow at the edge and the center forms a whirling air flow between the inner hopper and the outer hopper, and the whirling air flow drives all dust to enter the dust removal air duct. The efficiency of guiding raise dust is improved.
Optionally, the dust shielding device comprises a dust shielding plate, wherein the peripheral wall of the dust shielding plate is connected with the inner wall of the inner hopper, a plurality of dust shielding grooves are formed in the dust shielding plate, the dust shielding grooves penetrate through the top wall and the bottom wall of the dust shielding plate, the inner wall of the dust shielding grooves are obliquely arranged, and the inner wall of the dust shielding grooves is inclined downwards and inwards.
Optionally, the side length of the dust-shielding groove near the center of the dust-shielding plate is longer than the side length of the dust-shielding groove near the edge of the dust-shielding plate.
Through adopting above-mentioned technical scheme, when the material claw put in grain, grain pile into grain heap in dust cover board center department, dust cover groove in dust cover board center department is covered by grain and is difficult to ventilate, but dust cover groove in dust cover board edge department exposes, and the air current can be followed dust cover groove in dust cover board edge department and get into outer fight, with grain and dust absorption away that the collision of dust cover board was raised, reduces the quantity that the dust got into the air. The side length of the dust shielding groove near the center of the grain pile is larger than that of the dust shielding groove at the edge, the grain passing through the dust shielding plate at the center and the edge of the grain pile passes through the dust shielding groove at a uniform speed, and the dust shielding plate enables the grain pile to be dispersed and enter the outer hopper. And the air flow generated by the negative pressure device in the process of dispersion and falling is used for winding the raised dust into the dust removing air duct. And because the side length of the bottom of the dust-shielding groove is smaller than that of the top, dust raised in the outer hopper is difficult to enter the inner hopper through the dust-shielding groove.
Optionally, the negative pressure device includes a plurality of fans, the fan is installed in dust removal wind channel, the inlet scoop and the filter equipment intercommunication of fan, the air outlet and the outside air intercommunication of fan.
Optionally, the filtering device comprises a bag type dust collector, an electromagnetic valve and an air compressor, wherein the bag type dust collector is arranged in a dust collection air duct, one side of the bag type dust collector is connected with an outer hopper, the other side of the bag type dust collector is connected with an inner hopper, an air suction inlet of the fan is connected with an air outlet of the bag type dust collector, the electromagnetic valve is arranged on the outer hopper and is communicated with the bag type dust collector, the air compressor is arranged at one end, far away from the bag type dust collector, of the electromagnetic valve, and the electromagnetic valve controls output of the air compressor.
By adopting the technical scheme, before discharging, all fans are started, the fans suck air in the dust removal air duct into the fans through the bag type dust remover, then the air is discharged out of the outer hopper, and at the moment, the electromagnetic valve is closed. When the hopper discharges, the air flow generated by the fan drives the dust raised in the inner hopper and the outer hopper to reach the air suction port of the bag type dust collector, a part of dust particles with coarse particles and high density in the air flow are settled in the outer hopper under the action of gravity, and the dust with fine particle size and low density is deposited on the surface of the filter bag. When the bag type dust collector works for a specified time and dust on the surface of the filter bag needs to be cleaned, the control instrument controls the electromagnetic valve to open so that compressed air in the air compressor ejects jet air flow through the electromagnetic valve, induced air flow is formed to enter the filter bag of the bag type dust collector, instant positive pressure rapid expansion occurs in the filter bag, dust deposited on the outer side of the filter bag falls off, and the dust leaves the outer hopper along the inner side wall of the outer hopper along with grains under the action of gravity. The condition that the total gram weight of grains is reduced due to the fact that a large amount of dust adheres to the bag type dust collector is reduced.
Optionally, a plurality of air holes are formed in the side wall of the inner bucket, the air holes are higher than the dust shielding device, a baffle is arranged on the outer wall of the inner bucket and is in sliding fit with the inner bucket, the baffle can cover one end of the air holes close to the outer bucket, a movable frame is mounted on the inner bucket and is movably arranged at the top end of the inner bucket, an elastic piece is arranged between the movable frame and the inner bucket, the top wall of the movable frame can prop against a claw for moving materials, the movable frame is connected with the baffle, and the movable frame drives the baffle to reciprocate in the vertical direction.
Optionally, the baffle is kept away from the vertical lateral wall that the bottom of movable frame can outstanding the inner bucket to shelter from some dust removal wind channel.
Through adopting above-mentioned technical scheme, when unloading, the claw removes to directly over the inner bucket and descends, and the bottom of claw and the roof contact of movable frame in the claw decline in-process to drive the movable frame and move down, the movable frame moves down and drives the baffle through the pole and move down, until the baffle exposes the wind hole, the bottom of baffle blocks partial dust removal wind channel. Negative pressure generated by the fan sucks air into the dust removing air duct from the air hole, and air flow sucks dust raised by collision of grains and the dust shielding plate into the dust removing air duct through the air hole and is filtered by the bag type dust remover. The bottom of baffle shelters from the first half in dust removal wind channel, and the sectional area in dust removal wind channel reduces, avoids leading to the air current pressure in the outer bucket to reduce because of the opening of wind hole, influences the collection effect to the dust in the outer bucket.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The operator promotes the work frame and removes the position that needs the discharge with the work frame, and the bottom of outer bucket aligns the conveyer belt this moment. And starting the negative pressure device, wherein the negative pressure device forces air in the dust removal air channel to enter the suction inlet of the negative pressure device through the filtering device and then to be discharged outside the outer bucket, and negative pressure is formed in the dust removal air channel to force air in the inner bucket to enter the outer bucket through the dust shielding device and then enter the dust removal air channel. The operator controls the material claw to clamp the grain and then transfer the grain to the upper part of the inner hopper, the grain is put into the inner hopper, and the grain passes through the dust shielding device and enters the outer hopper. The dust that grain and dust shielding device collide and raise is driven by the air current that negative pressure device formed and passes dust shielding device and get into in the outer fight, and the dust in the outer fight is difficult to get into in the inner fight through dust shielding device, leads to the dust reverse escape to the air. The dust entering the outer hopper and the dust raised by collision between the grain and the inner wall of the outer hopper are driven by the air flow formed by the negative pressure device to enter the dust removing air duct, the air flow drives the dust to pass through the filtering device, the filtering device keeps the dust at the air suction inlet of the filtering device and then slides down along the inner wall of the outer hopper, and the clean air flows out along with the grain from the discharge outlet of the outer hopper, passes through the filtering device and enters the negative pressure device, and is discharged into the outside air by the negative pressure device. Dust emission in the unloading process is reduced, and the method is environment-friendly;
2. The included angle of the outer bucket side wall 50 degrees is compared with an obtuse angle, so that grains can be quickly guided to leave the outer bucket under the action of gravity, and the possibility that grains are impacted on the inner wall of the outer bucket with gentle gradient to cause grains to scatter and fly a large amount of dust is also reduced. The air flow at the edge of the inner hopper moves along the inclined inner wall of the inner hopper in a direction away from the dust shielding device, the air flow at the center of the inner hopper vertically moves downwards, and the negative pressure device controls the air flow to rotate in a direction close to the negative pressure device and moves along the inclined outer wall of the inner hopper and the inclined inner wall of the outer hopper in a direction close to the negative pressure device. The air flow at the edge and the center forms a whirling air flow between the inner hopper and the outer hopper, and the whirling air flow drives all dust to enter the dust removal air duct. The dust guiding efficiency is improved;
3. when unloading, the claw moves to the position right above the inner hopper and descends, the bottom of the claw contacts with the top wall of the movable frame in the descending process of the claw and drives the movable frame to move downwards, and the movable frame moves downwards to drive the baffle to move downwards through the rod until the baffle exposes the air hole, and the bottom of the baffle blocks part of the dust removal air duct. Negative pressure generated by the fan sucks air into the dust removing air duct from the air hole, and air flow sucks dust raised by collision of grains and the dust shielding plate into the dust removing air duct through the air hole and is filtered by the bag type dust remover. The bottom of baffle shelters from the first half in dust removal wind channel, and the sectional area in dust removal wind channel reduces, avoids leading to the air current pressure in the outer bucket to reduce because of the opening of wind hole, influences the collection effect to the dust in the outer bucket.
Drawings
FIG. 1 is a schematic view of a mobile dust removing discharge hopper according to example 1 of the present application.
FIG. 2 is a sectional view of a mobile dust hopper according to example 1 of the present application.
FIG. 3 is a schematic view showing the structure of a mobile dust removing discharge hopper according to example 2 of the present application.
FIG. 4 is a sectional view of a mobile dust hopper according to example 2 of the present application.
The reference numerals are 1, a working frame, 11, wheels, 2, an outer bucket, 3, an inner bucket, 31, a wind hole, 32, a baffle, 33, a movable frame, 34, an elastic piece, 4, a negative pressure device, 41, a fan, 5, a filtering device, 51, a bag type dust remover, 52, an electromagnetic valve, 53, an air compressor, 6, a dust shielding device, 61, a dust shielding plate, 62, a dust shielding groove, 7, a dust removing air duct, 8 and a conveyor belt.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses a movable dust removal discharge hopper.
Example 1
Referring to fig. 1 and 2, the mobile dust removing discharge hopper includes a work frame 1, wheels 11 are provided at the bottom end of the work frame 1, the wheels 11 are rotatably connected with the bottom end of the work frame 1, and the work frame 1 can move on the ground. The top of work frame 1 is provided with outer fight 2, and the vertical outer wall on outer fight 2 top is connected with the inner wall on work frame 1 top through the welding, and the roof of outer fight 2 outstanding roof setting of work frame 1. The bottom of the outer bucket 2 is suspended, and the bottom of the outer bucket 2 can be aligned with a conveyor belt 8 for transporting the unloaded grains away. An inner bucket 3 is arranged in the outer bucket 2, and the axis of the inner bucket 3 coincides with the axis of the outer bucket 2. The side length and the height of the inner bucket 3 are smaller than those of the outer bucket 2, the inner bucket 3 is arranged at the top end of the outer bucket 2 through a rod, and the top wall of the inner bucket 3 is higher than that of the outer bucket 2. The bottom of the inner bucket 3 is suspended, and a dust removal air duct 7 is formed between the inner wall of the outer bucket 2 and the outer wall of the inner bucket 3. The outer bucket 2 is provided with a negative pressure device 4, and an air suction inlet of the negative pressure device 4 passes through the outer bucket 2 and is arranged in the dust removal air duct 7. The negative pressure device 4 is arranged at the air suction port and is provided with a filtering device 5, and the filtering device 5 can filter dust in the air. The dust shielding device 6 is arranged in the inner hopper 3, grains pass through the dust shielding device 6 and enter the outer hopper 2, and dust in the outer hopper 2 is difficult to return into the inner hopper 3 through the dust shielding device 6.
The operator pushes the work frame 1 to move the work frame 1 to the position to be unloaded, and the bottom end of the outer bucket 2 is aligned with the conveyor belt 8. The negative pressure device 4 is started, the negative pressure device 4 forces air in the dust removal air duct 7 to enter the air suction inlet of the negative pressure device 4 through the filtering device 5 and then to be discharged outside the outer bucket 2, and negative pressure is formed in the dust removal air duct 7 to force air in the inner bucket 3 to enter the outer bucket 2 through the dust shielding device 6 and then enter the dust removal air duct 7. The operator controls the claw to clamp the grain and then transfers the grain to the upper part of the inner bucket 3, the grain is put into the inner bucket 3, and the grain passes through the dust shielding device 6 and enters the outer bucket 2. The dust raised by the collision of the grain and the dust shielding device 6 is driven by the airflow formed by the negative pressure device 4 to pass through the dust shielding device 6 and enter the outer bucket 2, and the dust in the outer bucket 2 is difficult to reversely escape into the air after entering the inner bucket 3 through the dust shielding device 6. Dust entering the outer hopper 2 and dust raised by collision between grains and the inner wall of the outer hopper 2 are driven by air flow formed by the negative pressure device 4 to enter the dust removal air duct 7, the air flow drives the dust to pass through the filtering device 5, the filtering device 5 blocks the dust outside the filtering device 5 and then slides along the inclined inner wall of the outer hopper 2, the dust and the grain flow out along with the grains from the discharge hole of the outer hopper 2, clean air passes through the filtering device 5 and enters the negative pressure device 4, and the air is discharged into the outside air by the negative pressure device 4. The dust emission in the unloading process is reduced, and the method is environment-friendly.
Referring to fig. 1 and 2, the inclined side wall of the outer bucket 2 forms an angle of 50 degrees with the horizontal direction, and the inclined side wall of the inner bucket 3 is parallel to the inclined side wall of the outer bucket 2. The included angle of 50 degrees compares in the obtuse angle can guide grain to leave outer bucket 2 fast under the effect of gravity, also reduces the grain impact and causes the grain dispersion to raise a large amount of dust's possibility on the outer bucket 2 inner wall that the slope is mild. The air flow at the edge of the inner bucket 3 moves along the inclined inner wall of the inner bucket 3 in a direction away from the dust shielding device 6, and when the air flow protrudes out of the bottom end of the side wall of the inner bucket 3, the negative pressure device 4 controls the air flow to rotate in a direction approaching the negative pressure device 4 and moves along the inclined outer wall of the inner bucket 3 in a direction approaching the negative pressure device 4. The air flow at the center of the inner bucket 3 moves vertically downward, and when the air flow protrudes from the bottom end of the side wall of the inner bucket 3, the negative pressure device 4 controls the air flow to rotate in a direction approaching the negative pressure device 4 and moves in a direction approaching the negative pressure device 4 along the inclined inner wall of the outer bucket 2. The air flow at the edge and the center forms a whirling air flow between the inner hopper 3 and the outer hopper 2, and the whirling air flow drives all dust into the dust removal air duct 7. Improving the efficiency and effect of guiding dust.
Referring to fig. 2, the dust shielding device 6 includes a dust shielding plate 61, and a peripheral wall of the dust shielding plate 61 is connected to an inner wall of the inner bucket 3 by bolts. The dust-shielding plate 61 is provided with a plurality of dust-shielding grooves 62, and the dust-shielding grooves 62 penetrate through the top wall and the bottom wall of the dust-shielding plate 61. The inner wall of the dust-shielding groove 62 is inclined, and the inner wall of the dust-shielding groove 62 is inclined downward and inward. The length of the side of the dust-shielding groove 62 near the center of the dust-shielding plate 61 is longer than the length of the side of the dust-shielding groove 62 near the edge of the dust-shielding plate 61.
When grains are put in the claw, the grains are piled up into grain piles at the center of the dust shielding plate 61, the dust shielding groove 62 at the center of the dust shielding plate 61 is covered by the grains and is difficult to ventilate, but the dust shielding groove 62 at the edge of the dust shielding plate 61 is exposed, air flow can enter the outer hopper 2 from the dust shielding groove 62 at the edge of the dust shielding plate 61, the grains are collided with the dust shielding plate 61 to suck up dust, and the amount of dust entering air is reduced. The side length of the dust shielding groove 62 near the center of the grain stack is longer than that of the dust shielding groove 62 at the edge, the grain passing through the dust shielding plate 61 at the center and the edge of the grain stack is uniform in speed through the dust shielding groove 62, and the dust shielding plate 61 enables the grain stack to be dispersed and enter the outer hopper 2. The air flow generated by the negative pressure device 4 during the dispersion and falling process winds the raised dust into the dust removal air duct 7. And since the side length of the bottom of the dust-shielding groove 62 is smaller than that of the top, dust raised in the outer hopper 2 is difficult to enter the inner hopper 3 through the dust-shielding groove 62.
Referring to fig. 2, the negative pressure device 4 includes a plurality of fans 41, in this embodiment, four fans 41 are provided according to the dust amount, and the four fans 41 are located at four corners of the outer bucket 2, respectively. The housing of the blower 41 is connected with the side wall of the outer bucket 2 through bolts. The air suction openings of the four fans 41 are respectively communicated with the filtering device 5, and the air outlets of the fans 41 are communicated with the outside air. The filtering device 5 comprises a bag type dust collector 51, four bag type dust collectors 51 are arranged in the embodiment, the four bag type dust collectors 51 are respectively arranged on four sides of the outer bucket 2, and the dust collection range of the four bag type dust collectors 51 covers the section of the whole dust collection air duct 7. The bag type dust collector 51 is arranged in the dust collection air duct 7, one side of the shell of the bag type dust collector 51 is connected with the outer bucket 2, and the other side is connected with the inner bucket 3. The air suction opening of the fan 41 is connected with the air outlet of the bag type dust collector 51, and the air suction opening of the bag type dust collector 51 is arranged towards the bottom end of the dust removal air duct 7.
The filter bags of the bag type dust collector 51 are in a group, each group of filter bags is connected with one electromagnetic valve 52, four electromagnetic valves 52 are arranged in the embodiment, the outer shell of each electromagnetic valve 52 is arranged on the outer side wall of the outer bucket 2 through bolts, and each electromagnetic valve 52 is communicated with an air outlet of the bag type dust collector 51. An air compressor 53 is installed at one end of the electromagnetic valve 52 far away from the bag collector 51, and the electromagnetic valve 52 controls the output of the air compressor 53. The four solenoid valves 52 are controlled by a controller which controls the solenoid valves 52 to open once every prescribed time elapses.
Before discharging, all fans 41 are started, the fans 41 suck air in the dust removal air duct 7 into the fans 41 through the bag type dust remover 51, the air is discharged out of the outer hopper 2, and the electromagnetic valve 52 is closed at the moment. When the hopper discharges, the air flow generated by the fan 41 drives the dust raised in the inner hopper 3 and the outer hopper 2 to reach the air suction inlet of the bag type dust collector 51, the flow speed is reduced due to the sudden expansion of the air flow cross-section area, a part of dust particles with coarse particles and high density in the air flow are settled in the outer hopper 2 under the action of gravity, and after the dust particles with fine particle size and small density enter the bag type dust collector 51, the dust is deposited on the surface of the filter bag through the combined effect of inertial collision and screening on the surface of the filter bag.
The resistance value of the bag house 51 increases with the thickness of the dust layer on the surface of the filter bag, and in order to avoid that the resistance value exceeds a predetermined value and the filtration cannot be continued, the dust on the surface of the filter bag needs to be cleaned. After the bag type dust collector 51 works for a specified time, the controller controls the electromagnetic valve 52 to open so that compressed air in the air compressor 53 sprays jet air flow through the electromagnetic valve 52, induced air flow is formed to enter a filter bag of the bag type dust collector 51, instant positive pressure rapid expansion occurs in the filter bag, dust deposited on the outer side of the filter bag falls off, and the dust leaves the outer hopper 2 along the inner side wall of the outer hopper 2 under the action of gravity.
The embodiment 1 is implemented by the principle that an operator pushes the work frame 1 above the conveyor belt 8 and turns on all fans 41. The claw is controlled to discharge, grains are piled on the dust shielding plate 61 and enter the outer hopper 2 through the dust shielding groove 62, and then fall on the conveyor belt 8 along the inclined inner wall of the outer hopper 2, so that the discharging is completed. The air flow generated by the fan 41 is used for sucking up the dust generated by collision of grains and the dust shielding plate 61 and the dust generated by scattering falling of the grains through the dust shielding plate 61 into the dust removing air duct 7, the dust is left on the bag type dust collector 51 by the air through the bag type dust collector 51, the fan 41 is used for discharging the clean air flow out of the outer hopper 2, and the dust discharge in the discharging process is reduced. In the unloading gap, the dust adhered to the bag type dust collector 51 is shaken off by the pulse air flow output by the air compressor 53 and the electromagnetic valve 52, and is carried away along with the grains, so that the condition that the total gram weight of the grains is reduced due to the fact that a large amount of dust adheres to the bag type dust collector 51 is reduced.
Example 2
Referring to fig. 3 and 4, since the grain stack easily shields all the dust shielding grooves 62 on the dust shielding plate 61 during discharging, the air flow cannot send the dust raised by collision of the grain and the dust shielding plate 61 into the outer hopper 2, and the dust can be directly dissipated in the air, so that the air quality is affected. In order to reduce the discharge of this part of dust, the side wall of the inner hopper 3 is provided with a plurality of air holes 31. The wind holes 31 are distributed on the vertical side walls around the inner hopper 3, and the wind holes 31 are higher than the dust shielding device 6. The air hole 31 communicates the inner bucket 3 with the dust removal air duct 7. The baffle 32 is arranged on the outer wall around the inner bucket 3, the baffle 32 is in sliding fit with the inner bucket 3, and the baffle 32 can cover one end of the wind hole 31, which is close to the outer bucket 2. The movable frame 33 is arranged on the inner bucket 3, and the movable frame 33 is movably arranged at the top end of the inner bucket 3. An elastic member 34 is disposed between the movable frame 33 and the inner bucket 3, and in this embodiment, the elastic member 34 is a spring. The top wall of the movable frame 33 can be propped against a claw for moving materials. The movable frame 33 is provided with a rod through a bolt, the rod passes through the top wall of the outer bucket 2 and is connected with the baffle 32 through a bolt, and the movable frame 33 drives the baffle 32 to reciprocate in the vertical direction. The baffle 32 is far away from the bottom end of the movable frame 33, can protrude out of the vertical side wall of the inner hopper 3, and shields part of the dust removal air flue 7.
The embodiment 2 is implemented by the principle that when discharging, the claw moves to the position right above the inner hopper 3 and descends, the bottom of the claw contacts with the top wall of the movable frame 33 in the descending process of the claw, the movable frame 33 is driven to move downwards, the movable frame 33 moves downwards through the rod to drive the baffle 32 to move downwards until the baffle 32 exposes the air hole 31, and the bottom of the baffle 32 blocks part of the dust removal air duct 7. The negative pressure generated by the fan 41 sucks air into the dust-removing air duct 7 from the air hole 31, and the air flow sucks dust raised by the collision of grains with the dust-shielding plate 61 into the dust-removing air duct 7 through the air hole 31 and filters the dust by the bag type dust collector 51. The bottom of the baffle 32 shields the upper half part of the dust removal air duct 7, the sectional area of the dust removal air duct 7 is reduced, and the influence on the collection effect of dust in the outer hopper 2 caused by the reduction of the air flow pressure in the outer hopper 2 due to the opening of the air hole 31 is avoided.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (8)
1. The movable dust removal and discharge hopper is characterized by comprising a working frame (1), wherein an outer hopper (2) is arranged on the working frame (1), the top end of the outer hopper (2) is arranged on the working frame (1), the bottom end of the outer hopper (2) is arranged in a suspended mode, an inner hopper (3) is arranged in the outer hopper (2), the top end of the inner hopper (3) is arranged in a suspended mode, a dust removal air channel (7) is formed between the outer hopper (2) and the inner hopper (3), a negative pressure device (4) is arranged on the outer hopper (2), an air suction inlet of the negative pressure device (4) is arranged in the dust removal air channel (7), a filtering device (5) is arranged at the air suction inlet of the negative pressure device (4), and a dust shielding device (6) is arranged in the inner hopper (3).
2. The mobile dust removal discharging hopper as set forth in claim 1, wherein the inclined side wall of the outer hopper (2) forms an angle of 50 degrees with the horizontal direction, and the inclined side wall of the inner hopper (3) is parallel to the inclined side wall of the outer hopper (2).
3. The mobile dust removal and discharge hopper as set forth in claim 1, wherein the dust shielding device (6) comprises a dust shielding plate (61), the peripheral wall of the dust shielding plate (61) is connected with the inner wall of the inner hopper (3), a plurality of dust shielding grooves (62) are formed in the dust shielding plate (61), the dust shielding grooves (62) penetrate through the top wall and the bottom wall of the dust shielding plate (61), the inner wall of the dust shielding grooves (62) is obliquely arranged, and the inner wall of the dust shielding grooves (62) is obliquely inclined downwards and inwards.
4. A mobile dust removing discharge hopper as set forth in claim 3, wherein the side length of the dust shielding groove (62) near the center of the dust shielding plate (61) is longer than the side length of the dust shielding groove (62) near the edge of the dust shielding plate (61).
5. The mobile dust removal and discharge hopper as set forth in claim 1, wherein the negative pressure device (4) comprises a plurality of fans (41), the fans (41) are installed in the dust removal air duct (7), the air suction openings of the fans (41) are communicated with the filtering device (5), and the air outlets of the fans (41) are communicated with the outside air.
6. The mobile dust removal and discharge hopper as set forth in claim 5, wherein the filter device (5) comprises a bag type dust collector (51), an electromagnetic valve (52) and an air compressor (53), the bag type dust collector (51) is installed in the dust removal air duct (7), one side of the bag type dust collector (51) is connected with the outer hopper (2), the other side of the bag type dust collector is connected with the inner hopper (3), an air suction inlet of the fan (41) is connected with an air outlet of the bag type dust collector (51), the electromagnetic valve (52) is installed on the outer hopper (2), the electromagnetic valve (52) is communicated with the bag type dust collector (51), the air compressor (53) is installed at one end, far away from the bag type dust collector (51), of the electromagnetic valve (52) and the output of the air compressor (53) is controlled by the electromagnetic valve (52).
7. The movable dust removal and discharge hopper according to claim 1 is characterized in that a plurality of air holes (31) are formed in the side wall of the inner hopper (3), the air holes (31) are higher than a dust shielding device (6), a baffle plate (32) is arranged on the outer wall of the inner hopper (3), the baffle plate (32) is in sliding fit with the inner hopper (3), the baffle plate (32) can cover one end, close to the outer hopper (2), of the air holes (31), a movable frame (33) is mounted on the inner hopper (3), the movable frame (33) is movably arranged at the top end of the inner hopper (3), an elastic piece (34) is arranged between the movable frame (33) and the inner hopper (3), the top wall of the movable frame (33) can be abutted against a claw for moving materials, the movable frame (33) is connected with the baffle plate (32), and the movable frame (33) drives the baffle plate (32) to reciprocate in the vertical direction.
8. The mobile dust removal and discharge hopper as set forth in claim 7, wherein the baffle plate (32) is far away from the bottom end of the movable frame (33) and can protrude out of the vertical side wall of the inner hopper (3) and shield part of the dust removal air duct (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420324354.0U CN222225444U (en) | 2024-02-21 | 2024-02-21 | Movable dust removal discharge hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420324354.0U CN222225444U (en) | 2024-02-21 | 2024-02-21 | Movable dust removal discharge hopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222225444U true CN222225444U (en) | 2024-12-24 |
Family
ID=93906075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420324354.0U Active CN222225444U (en) | 2024-02-21 | 2024-02-21 | Movable dust removal discharge hopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222225444U (en) |
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2024
- 2024-02-21 CN CN202420324354.0U patent/CN222225444U/en active Active
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