CN219334512U

CN219334512U - Dust collecting device for vertical shaft impact crusher

Info

Publication number: CN219334512U
Application number: CN202223532322.XU
Authority: CN
Inventors: 李怀明
Original assignee: Gansu Kangxing Technology Co ltd
Current assignee: Gansu Kangxing Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-07-14
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of dust collection of crushers, and provides a dust collection device for a vertical shaft impact crusher, which comprises a feeding hopper, a double-fork type discharging hopper, a dust collection pipe, a sealing cover, a dust collection box, an air guide pipe and a sedimentation tank; the feeding hopper is communicated with a feeding chute of the feeding belt conveyor and the crusher, and the feeding port is provided with an elastic sealing plate; the double-fork type discharging hopper is communicated with two discharging openings of the crusher; the sealing cover is arranged at the tail part of the blanking belt conveyor, and the bottom of the double-fork type blanking hopper is communicated with the top of the sealing cover; dust collecting pipes are arranged at the top of the discharging box, the side wall and the top of the sealing cover and are communicated with a dust collecting box, the dust collecting box is connected with an air guiding pipe, and the air guiding pipe extends into the sedimentation tank; the dust collection pipe is connected with a cleaning pipe. The utility model can skillfully introduce dust into the dust collection device by taking high-speed rotating airflow generated by the vertical shaft impact crusher as power by using a simple structure, thereby avoiding energy consumption, realizing high-efficiency dust recovery and orderly discharge of airflow under reduced pressure, fundamentally avoiding secondary dust generation and having extremely low investment and operation cost.

Description

Dust collecting device for vertical shaft impact crusher

Technical Field

The utility model relates to the technical field of dust collection of crushers, in particular to a dust collection device for a vertical shaft impact crusher.

Background

The vertical shaft impact crusher is commonly called a sand making machine, is high-energy low-consumption equipment with international advanced level, has the performance of playing an irreplaceable role in various ore fine crushing equipment, is a first-choice equipment in the fields of artificial sand making and stone shaping, and is widely applied to crushing various ores, cements, refractory materials, alumina clinker, silicon carbide, glass raw materials, machine-made building sand, stones and various metallurgical slag.

The working principle of the vertical shaft impact crusher is as follows: the impeller rotating at high speed throws out the materials, and the materials are impacted to the material lining layer in the vortex crushing cavity to carry out strong self-crushing, so that the fine crushing of the materials is realized. In the operation process of the vertical shaft impact crusher, due to the high-speed rotation (1700-2000 r/min) of the impeller, strong rotary airflow (the flow rate is 60-70 m/s) is generated in the crushing cavity, and the crushed material is discharged from the discharging opening, and a large amount of dust is carried out, so that the environment is seriously polluted. The existing dust treatment mode adopted by the vertical shaft impact crusher is as follows: the gap between the blanking opening of the crusher and the blanking conveyor belt is sealed by rubber, and meanwhile, the dust collection pipeline is connected with a dust collection unit to suck dust-containing air into the dust collector for dust collection, so that dust overflow is reduced. The rotary airflow generated in the crushing cavity is the root of dust generation, the dust-containing airflow is unstable when the crusher is started, operated and stopped, the dust collected by the dust collector is easy to generate secondary dust, the dust collection effect of the hard mode is not ideal, the energy consumption is high, the early investment and the operation cost are high, and the problem of dust overflow cannot be effectively solved.

Disclosure of Invention

Aiming at the problems existing in the prior art, the dust collection device for the vertical shaft impact crusher provided by the utility model can ingeniously introduce dust into the dust collection device by taking high-speed rotating airflow generated by the vertical shaft impact crusher as power by utilizing a simple structure, so that the energy consumption of dust collection is avoided, the efficient recovery of the dust and the pressure reduction and orderly discharge of the airflow are realized, the generation of secondary dust is fundamentally avoided, and meanwhile, the investment in the early stage and the cost of dust collection operation are extremely low.

The technical scheme of the utility model is as follows:

the dust collecting device for the vertical shaft impact crusher comprises a feeding hopper 3, an elastic sealing plate 4, a double-fork type discharging hopper 6, a first dust collecting pipe 7, a second dust collecting pipe 8, a third dust collecting pipe 9, a first sealing cover 10, a dust collecting box 13, an induced draft pipe 14 and a sedimentation tank 15; a feeding belt conveyor 1 is arranged above the crusher 5, a discharging belt conveyor 11 is arranged below the crusher 5, a feeding chute is arranged at a discharge hole of the feeding belt conveyor 1, a feed hole of a feed hopper 3 is communicated with a discharge hole of the feeding chute, the discharge hole is communicated with a feed hole of the crusher 5, baffles are inwards extended at the left side and the right side of the feed hole of the feed hopper 3, and one end of an elastic sealing plate 4 is fixed on the right baffle, and the other end of the elastic sealing plate is positioned below the left baffle;

the double-fork type discharging hopper 6 comprises a left discharging hopper 6-1, a right discharging hopper 6-2 and a discharging box 6-3, two mounting holes are symmetrically formed in the two sides of the top of the discharging box 6-3, discharging holes of the left discharging hopper 6-1 and the right discharging hopper 6-2 are respectively fixed in the two mounting holes, and the feeding holes are respectively communicated with the two discharging holes of the crusher 5; the first sealing cover 10 is arranged at the tail part of the blanking belt conveyor 11, and a discharge hole formed in the bottom of the blanking box 6-3 is communicated with a feed hole formed in the top of the first sealing cover 10;

the feed inlet of the first dust collecting pipe 7 is communicated with the top of the blanking box 6-3, the feed inlet of the second dust collecting pipe 8 is communicated with the top of the first sealing cover 10 and is positioned on one side of the blanking box 6-3 far away from the tail end of the blanking belt conveyor 11, the feed inlet of the third dust collecting pipe 9 is communicated with the side wall of the blanking box 6-3, the discharge outlets of all dust collecting pipes are communicated with one side of the dust collecting box 13, the bottom of the other side of the dust collecting box 13 is communicated with the air inlet of the air guiding pipe 14, and the air outlet of the air guiding pipe 14 extends into the sedimentation tank 15; all dust collecting pipes are communicated with a cleaning pipe 12, and a valve is arranged on the cleaning pipe 12.

Further, a second sealing cover 2 is arranged at the discharge port of the feeding belt conveyor 1.

Further, the hopper 3 includes upper feed portion, the lower feed portion of intercommunication each other, the vertical setting of lower feed portion, upper feed portion sets up to the left slope, the cross-section of the perpendicular to central line of hopper 3 is the rectangle, the feed inlet of upper feed portion with the discharge gate butt joint of feed chute, the feed inlet intercommunication of breaker 5 has the hopper of falling round platform form, the discharge gate of lower feed portion stretches into the hopper of falling round platform form and with the discharge gate butt joint of hopper of falling round platform form.

Further, the included angle between the central line of the upper feeding part and the central line of the lower feeding part is 130-150 degrees.

Further, the elastic sealing plate 4 comprises a plurality of first rubber sealing strips which are sequentially arranged, a first pressing plate is arranged above the right end of the elastic sealing plate 4, and the first pressing plate and the plurality of first rubber sealing strips are fixedly connected with the top of the right baffle plate through screws.

Further, a discharge hole is formed in the head end of the first sealing cover 10, nylon cloth is arranged at the head end of the first sealing cover, and the tail end of the nylon cloth is fixedly connected with the top end and two sides of the discharge hole of the first sealing cover 10; the tail end of the first sealing cover 10 is provided with a rubber sealing plate, the outer side of the rubber sealing plate is provided with a second pressing plate, the second pressing plate and the rubber sealing plate are fixedly connected with the outer wall of the tail end of the first sealing cover 10 through screws, the bottom end of the rubber sealing plate contacts with the belt of the blanking belt conveyor 11, and the bottom end of the second pressing plate is higher than the bottom end of the rubber sealing plate; the two sides of the first sealing cover 10 are respectively provided with a second rubber sealing strip, the outer sides of the second rubber sealing strips are respectively provided with a third pressing plate, the third pressing plates and the second rubber sealing strips are fixedly connected with the outer walls of the corresponding sides of the first sealing cover 10 through screws, and the bottom ends of the second rubber sealing strips are contacted with the belt of the blanking belt conveyor 11.

Further, the nylon cloth covers the length of the belt of the blanking belt conveyor 11 to be not less than 800mm.

Further, the first dust collecting pipe 7 and the second dust collecting pipe 8 comprise vertical pipes, horizontal pipes and inclined pipes which are sequentially communicated, the third dust collecting pipe 9 comprises horizontal pipes and inclined pipes which are sequentially communicated, the vertical pipes of the first dust collecting pipe 7 and the blanking box 6-3, the vertical pipes of the second dust collecting pipe 8 and the first sealing cover 10, the horizontal pipes of the third dust collecting pipe 9 and the blanking box 6-3 are all communicated through horn-shaped dust collecting openings, and all the inclined pipes are all communicated with the dust collecting box 13; the water outlet of the cleaning pipe 12 is communicated with the highest point at the bottom of the corresponding horizontal pipe, and a spray head is arranged at the water outlet, is clung to the inner wall at the bottom of the corresponding horizontal pipe, and faces the dust conveying direction in the corresponding horizontal pipe.

Further, the vertical section of the dust collection box 13 is a pentagon with the upper right corner removed, the first dust collection pipe 7, the second dust collection pipe 8 and the third dust collection pipe 9 are connected with the left side wall of the dust collection box 13, and the air guide pipe 14 is connected with the right vertical side wall of the dust collection box 13.

Further, the vertical section of the sedimentation tank 15 is an inverted isosceles trapezoid, and the air outlet of the air guide pipe 14 is located at one side of the sedimentation tank 15 away from the oblique side of the inverted isosceles trapezoid.

The beneficial effects of the utility model are as follows:

(1) According to the utility model, the feeding hopper is arranged at the feeding port of the crusher, the elastic sealing plate is arranged at the inner side of the top of the feeding hopper, the double-fork type discharging hopper is arranged at the discharging port of the crusher, the sealing cover is arranged at the tail part of the discharging belt conveyor below the double-fork type discharging hopper, the dust collecting pipes are respectively arranged at the top and the side wall of the discharging box of the double-fork type discharging hopper and the position, close to the head end, of the top of the sealing cover and are communicated with one side of the dust collecting box, the induced air pipe is arranged at the other side of the dust collecting box and is communicated with the sedimentation tank, so that the high-speed rotary airflow generated by the vertical shaft impact crusher is ingeniously introduced into the dust collecting device as power, the disadvantage is changed into the advantage, the energy consumption of dust collection is avoided, the efficient recovery of the dust and the decompression orderly discharge of the airflow are realized, the generation of secondary dust is avoided from the root, the dust collection cost of the early investment and the dust collection operation is extremely low, and the technical problems of the secondary dust collection, the unsatisfactory dust collection effect, the high energy consumption and the early investment and the high operation cost caused by the high-speed rotary airflow discharge of the existing vertical shaft impact crusher technology are effectively solved.

(2) According to the utility model, the sealing cover is arranged at the discharge hole of the feeding belt conveyor, so that dust generated in the feeding process can be reduced, and preliminary dust prevention is realized.

(3) According to the utility model, the rectangular feeding hopper is arranged, the lower feeding part of the rectangular feeding hopper is vertically arranged, the upper feeding part is obliquely arranged leftwards, one end of the elastic sealing plate is fixed on the right side of the feeding inlet of the feeding hopper, and the other end of the elastic sealing plate is arranged below the left baffle of the feeding inlet of the feeding hopper, so that the elastic sealing plate can be skillfully sprung up by utilizing the elasticity of the elastic sealing plate when not feeding, and can be skillfully pushed down by utilizing the weight of materials when feeding, the dynamic sealing of the feeding inlet of the feeding hopper is realized, and the elastic sealing plate is further jacked up when the high-speed rotating airflow generated by the crusher moves upwards, so that the sealing effect of the feeding inlet of the feeding hopper is enhanced, the channel for upwards discharging the high-speed rotating airflow is blocked, and the high-speed rotating airflow can only be discharged through the dust collecting component below the feeding inlet of the crushing machine, and the dust collecting efficiency and the dust collecting effect are greatly improved.

(4) According to the utility model, the sealing cover is arranged at the tail part of the blanking belt conveyor, the nylon cloth with the length of not less than 800mm is covered at the head end of the sealing cover for dynamic sealing, the rear end of the sealing cover is sealed by adopting a mode of a back steel plate behind the rubber, and friction soft sealing is formed between the rubber sealing strips and the belt on two sides, so that the sealing effect of the sealing cover can be enhanced, dust leakage at the sealing cover is prevented, and the dust collection effect and efficiency are further improved.

(5) According to the utility model, the horn-shaped dust collection openings are arranged at the feed inlets of the dust collection pipes, so that the dust collection effect can be enhanced, and the dust collection efficiency can be improved.

(6) According to the utility model, the cleaning pipe is arranged at the highest point of the bottom of the horizontal pipe of each dust collecting pipe, the valve is arranged on the cleaning pipe, the spray head is arranged at the water outlet of the cleaning pipe and is clung to the inner wall of the bottom of the corresponding horizontal pipe, and the direction of the spray head faces the dust conveying direction in the corresponding horizontal pipe, so that the water source can be connected to wash the dust deposited in the dust collecting pipe along the air flow direction in the dust collecting pipe after the dust collecting time is longer, and the persistence and the stability of the dust collecting operation are improved.

(7) According to the utility model, the vertical section of the dust box is rectangular, the pentagon obtained by removing the upper right corner is arranged, so that the dust box is in a trapezoid shape, each dust collecting pipe is connected with the opposite side of the inclined plane of the dust box, and the air guiding pipe is connected with the vertical surface below one side of the inclined plane of the dust box, so that air flow can quickly enter the air guiding pipe after the dust box is mixed, the dust collecting effect is enhanced, and the dust collecting efficiency is improved.

(8) According to the utility model, the sedimentation tank is arranged, the air outlet of the air guide pipe is inserted into the sedimentation tank, and the vertical section of the sedimentation tank is in the shape of an inverted isosceles trapezoid, so that the dust collection effect can be further improved, and secondary dust is avoided.

Drawings

Fig. 1 is a schematic structural view of a dust collecting device for a vertical shaft impact crusher according to the present utility model in a specific embodiment.

Fig. 2 is a cross-sectional view of a double-fork type hopper and two dust collecting pipes connected with the same in a dust collecting device for a vertical shaft impact crusher according to the present utility model.

In the figure, a 1-feeding belt conveyor, a 2-second sealing cover, a 3-feeding hopper, a 4-elastic sealing plate, a 5-crusher, a 6-double-fork type blanking hopper, a 6-1-left blanking hopper, a 6-2-right blanking hopper, a 6-3-blanking box, a 7-first dust collecting pipe, an 8-second dust collecting pipe, a 9-third dust collecting pipe, a 10-first sealing cover, a 11-blanking belt conveyor, a 12-cleaning pipe, a 13-dust collecting box, a 14-air guiding pipe and a 15-sedimentation tank.

Detailed Description

The utility model will be further described with reference to the drawings and detailed description.

What needs to be specifically stated is: the "left" and "right" of the left and right hoppers 6-1, 6-2 "in the present utility model are based on the directions shown in fig. 2, and the" left "," right "and" upper "," lower "," top "and" bottom "are based on the directions shown in fig. 1, the head and tail of the belt conveyor are divided according to the material conveying direction, that is, the material flows from the tail of the belt conveyor to the head, the head and tail of the first sealing cap 10 are the ends near the head and tail of the blanking belt conveyor 11, respectively, and the two sides of the first sealing cap 10 are the front and rear sides with respect to the head and tail thereof, that is, the front and rear sides shown in fig. 1, which are merely for convenience of description and simplicity of description, and are not indicative or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore are not to be construed as limiting the present utility model.

As shown in fig. 1, the dust collecting device for the vertical shaft impact crusher comprises a feeding hopper 3, an elastic sealing plate 4, a double-fork type discharging hopper 6, a first dust collecting pipe 7, a second dust collecting pipe 8, a third dust collecting pipe 9, a first sealing cover 10, a dust collecting box 13, an air guiding pipe 14 and a sedimentation tank 15; the top of breaker 5 is provided with feed band conveyer 1, the below is provided with unloading band conveyer 11, the discharge gate of feed band conveyer 1 is provided with the feed chute, the feed inlet of feed hopper 3 with the discharge gate intercommunication of feed chute, the discharge gate with the feed inlet intercommunication of breaker 5, the feed inlet left side of feed hopper 3, the equal inwards extension in right side have the baffle, the one end of elastic sealing plate 4 is fixed on the right side baffle, the other end is located left side baffle below.

As shown in fig. 2, the double-fork type discharging hopper 6 comprises a left discharging hopper 6-1, a right discharging hopper 6-2 and a discharging box 6-3, wherein two mounting holes are symmetrically formed in two sides of the top of the discharging box 6-3, discharging holes of the left discharging hopper 6-1 and the right discharging hopper 6-2 are respectively fixed in the two mounting holes, and feeding holes are respectively communicated with the two discharging holes of the crusher 5; the first sealing cover 10 is arranged at the tail part of the blanking belt conveyor 11, and a discharge hole formed in the bottom of the blanking box 6-3 is communicated with a feed hole formed in the top of the first sealing cover 10.

In order to reduce the dust that produces in the feed process, set up second sealed cowling 2 at the discharge gate of feed band conveyer 1, realize preliminary dustproof.

The feeding hopper 3 comprises an upper feeding part and a lower feeding part which are mutually communicated, the lower feeding part is vertically arranged, the upper feeding part is obliquely arranged leftwards, the section of the feeding hopper 3 perpendicular to the central line is rectangular, the feeding inlet of the upper feeding part is in butt joint with the discharging outlet of the feeding chute, the feeding inlet of the crusher 5 is communicated with an inverted circular table-shaped feeding hopper, and the discharging outlet of the lower feeding part extends into the inverted circular table-shaped feeding hopper and is in butt joint with the discharging outlet of the inverted circular table-shaped feeding hopper. The included angle between the central line of the upper feeding part and the central line of the lower feeding part is 130-150 degrees. The size of the hopper 3 is determined according to the model of the crusher 5 and the position of the feeding belt conveyor 1, and in this embodiment, the length×width×height=600 mm×400mm×500mm of the hopper 3.

The elastic sealing plate 4 comprises a plurality of first rubber sealing strips which are sequentially arranged, the plurality of first rubber sealing strips form a multi-strip-shaped elastic sealing plate, the right side of the multi-strip-shaped elastic sealing plate is fixed on the right side edge of the feeding hole of the rectangular feeding hopper 3, and a first pressing plate is arranged above the right end of the elastic sealing plate 4 and is fixedly connected with the top of the right baffle plate through screws. When the feeding is not performed, the elastic sealing plate 4 is sprung upwards under the action of elastic force, and the left side of the elastic sealing plate is clamped under the inward turning edge, namely the left side baffle plate, at the left side of the feeding port of the rectangular feeding hopper 3 so as to seal the feeding port; during feeding, the elastic sealing plate 4 is pushed open under the action of the weight of the materials, so that dynamic sealing is realized between the entered materials and the elastic sealing plate 4.

According to the utility model, the rectangular feeding hopper 3 is arranged, the lower feeding part of the rectangular feeding hopper is vertically arranged, the upper feeding part is obliquely arranged leftwards, one end of the elastic sealing plate 4 is fixed on the right side of the feeding inlet of the feeding hopper 3, and the other end of the elastic sealing plate is arranged below the left baffle of the feeding inlet of the feeding hopper 3, so that the elastic sealing plate 4 can be skillfully sprung upwards by utilizing the elasticity of the elastic sealing plate 4 when not feeding, the elastic sealing plate 4 can be skillfully pushed downwards by utilizing the weight of materials when feeding, the dynamic sealing of the feeding inlet of the feeding hopper 3 is realized, the elastic sealing plate 4 is further jacked when the high-speed rotating airflow generated by the crusher 5 moves upwards, the sealing effect of the feeding inlet of the feeding hopper 3 is enhanced, the upward discharging channel of the high-speed rotating airflow is blocked, the high-speed rotating airflow can only be discharged through the dust collecting component below the feeding inlet of the crusher 5, and the dust collecting efficiency and the dust collecting effect are greatly improved.

In order to enhance the sealing effect of the first sealing cover 10, dust at the first sealing cover 10 is prevented from leaking, dust collection effect and efficiency are further improved, the front end of the first sealing cover 10 is covered with nylon cloth for dynamic sealing, the rear end of the first sealing cover is sealed in a mode of adopting a back steel plate behind a rubber, and friction soft sealing is formed between rubber sealing strips and belts on two sides of the first sealing cover. Specifically, the head end of the first sealing cover 10 is provided with a discharge hole and nylon cloth, the tail end of the nylon cloth is fixedly connected with the top end and two sides of the discharge hole of the first sealing cover 10, the nylon cloth is preferably flexible nylon cloth with wrinkles, the nylon cloth covers the belt of the blanking belt conveyor 11, the length of the belt conveyor 11 is not less than 800mm, broken materials entering the first sealing cover 10 are transported from the tail of the blanking belt conveyor 11 to the head, and dust is primarily weakened by the nylon cloth in the transportation process and then transported from the tail of the nylon cloth; the tail end of the first sealing cover 10 is provided with a rubber sealing plate, the outer side of the rubber sealing plate is provided with a second pressing plate, the second pressing plate and the rubber sealing plate are fixedly connected with the outer wall of the tail end of the first sealing cover 10 through screws, the bottom end of the rubber sealing plate contacts with the belt of the blanking belt conveyor 11, and the bottom end of the second pressing plate is higher than the bottom end of the rubber sealing plate; the two sides of the first sealing cover 10 are respectively provided with a second rubber sealing strip, the outer sides of the second rubber sealing strips are respectively provided with a third pressing plate, the third pressing plates and the second rubber sealing strips are fixedly connected with the outer walls of the corresponding sides of the first sealing cover 10 through screws, and the bottom ends of the second rubber sealing strips are contacted with the belt of the blanking belt conveyor 11 and cut into the inner sides of the belt, so that friction soft sealing is formed between the second rubber sealing strips and the belt. In this embodiment, the first pressing plate, the second pressing plate, and the third pressing plate are all steel plates.

The top and the side wall of the blanking box 6-3 of the double-fork blanking hopper 6 and the top of the first sealing cover 10 near the head end are respectively provided with dust collecting pipes which are communicated with one side of a dust collecting box 13, the diameters of dust collecting pipes are DN300mm, and the dust collecting pipes are respectively welded between the left blanking hopper 6-1, the right blanking hopper 6-2 and the middle blanking box 6-3, between the middle blanking box 6-3 and the first sealing cover 10, between the first dust collecting pipe 7 and the middle blanking box 6-3, between the second dust collecting pipe 8 and the first sealing cover 10 and between the third dust collecting pipe 9 and the middle blanking box 6-3. In this embodiment, the first dust collecting pipe 7 and the second dust collecting pipe 8 each include a vertical pipe, a horizontal pipe and a downward inclined pipe which are sequentially communicated, and the third dust collecting pipe 9 includes a horizontal pipe and a downward inclined pipe which are sequentially communicated. The vertical pipe of the first dust collecting pipe 7 is communicated with the discharging box 6-3, the vertical pipe of the second dust collecting pipe 8 is communicated with the first sealing cover 10, the horizontal pipe of the third dust collecting pipe 9 is communicated with the discharging box 6-3 through a horn-shaped dust collecting opening, so that the dust collecting effect is enhanced, and the dust collecting efficiency is improved. All inclined tubes are in communication with the dust bin 13. After the dust collection time is longer, dust is easy to deposit in the dust collection pipe, the cleaning pipe 12 is arranged, the water outlet of the cleaning pipe 12 is communicated with the highest point at the bottom of the corresponding horizontal pipe, the spray head is arranged at the water outlet, the spray head is tightly attached to the inner wall at the bottom of the corresponding horizontal pipe and faces the dust conveying direction in the corresponding horizontal pipe, a water source can be connected to wash the dust collection pipe along the airflow direction in the dust collection pipe, and the persistence and the stability of dust collection operation are improved. In this embodiment, the diameter of the cleaning tube 12 is DN20mm.

In this embodiment, the vertical cross section of dust collection box 13 is the rectangle and removes the pentagon that the upper right corner obtained for dust collection box 13 is "ladder" shape, first dust collecting pipe 7, second dust collecting pipe 8, third dust collecting pipe 9 are connected with the left side wall of dust collection box 13, induced air pipe 14 with the vertical lateral wall central point in right of dust collection box 13 puts and is connected, makes dust air current get into from the inclined plane offside of dust collection box 13, flows out from inclined plane one side below, makes the air current can get into induced air pipeline fast after the dust collection box mixes, has strengthened dust collection effect, has improved dust collection efficiency. The "ladder" dust box 13 has dimensions of 800mm for the upper base, 2000mm for the lower base, 600mm wide, and 1500mm high.

In this embodiment, in order to further improve the dust collection effect, avoid generating secondary dust, the vertical cross section of the sedimentation tank 15 is an inverted isosceles trapezoid, and the air outlet of the air intake pipe 14 is located at one side of the sedimentation tank 15 away from the oblique side of the inverted isosceles trapezoid. Wherein, the pipe diameter of the air guiding pipe 14 is DN400mm, the depth of the tail end inserted into the water in the sedimentation tank 15 is about 150mm, and the size of the sedimentation tank 15 is 12mm at the upper bottom, 5m at the lower bottom, 6m wide and 2m high.

The working principle of the utility model is described below with reference to the accompanying drawings:

the materials automatically flow to the rectangular feed inlet of the feed hopper 3 through the feed chute of the discharge port of the feed belt conveyor 1, the materials push away the multi-strip elastic sealing plate 4 of the rectangular feed inlet due to self weight and then enter the box of the crusher 5 through the feed hopper 3, and the materials are transversely thrown into the lining plate and the material layer on the inner wall of the crushing cavity under the action of the impeller rotating at high speed (1700-2000 r/min), so that the materials are strongly collided with the lining plate and the materials to be self-crushed. The crushed qualified products enter the double-fork type blanking hopper 6 through the sieve plate below the cavity and flow into the first sealing cover 10 to be transported to the storage bin through the blanking belt conveyor 11. During the period, dust generated by crushing and dust carried by a rotating airflow generated by high-speed rotation of an impeller of the crusher 5 enter a dust collection box 13 for mixing under the action of the high-speed rotating airflow (the flow speed is 60-70 m/s), and finally are discharged into a sedimentation tank 15 through an air guide pipe 14, the dust enters water in the sedimentation tank 15 for sedimentation and is cleaned regularly, and air overflows from the water surface of the sedimentation tank 15, so that the effective recovery of the dust and the orderly discharge of the high-speed rotating airflow generated in the crushing process are realized. Meanwhile, according to the dust accumulation condition in the dust collecting device, a gap for stopping the crusher 5 is opened, the cleaning pipe 12 is opened, and water is used for flushing the dust accumulation in the dust collecting device into the sedimentation tank 15, so that the use efficiency of the dust collecting device is ensured.

The dust-containing air flow of the crusher 5 is unstable during startup, operation and shutdown, and secondary dust is easy to generate. In this embodiment, when the breaker 5 starts, the interior elastic sealing plate 4 of rectangular feed inlet of hopper 3 is automatic to be bounced and is sealed the rectangular feed inlet, and behind the air current that the impeller rotation of breaker 5 produced carried the interior dust of breaker box up, upwards had not exhaust passageway, can only discharge through the dust collection subassembly of feed opening below, and dust collection efficiency is more than 96%, has effectively solved the problem of dust pollution environment when the breaker starts. In another embodiment of the utility model, when the crusher 5 is used for feeding production, the material flow automatically enters the rectangular feeding hole, and the multi-strip elastic sealing plate 4 is pushed away by the self weight of the material flow, so that dynamic sealing is formed between the material flow and the multi-strip elastic sealing plate 4, therefore, dust produced by the crusher 5 in the crushing process is not discharged upwards, and can only be discharged through the dust collection component below the feeding hole, the dust collection efficiency is more than 92%, and the problem that the dust pollutes the environment in the crusher production process is effectively solved. In another embodiment of the utility model, when the crusher 5 is stopped, the feeding is stopped first, the multi-strip elastic sealing plate 4 at the rectangular feeding hole automatically bounces to seal the rectangular feeding hole, and because dust generated by stopping the crusher 5 has no upward discharge channel, the dust can only be discharged along with the air flow through the dust collection component below the feeding hole, the dust collection efficiency is more than 95%, and the problem of dust pollution to the environment when the crusher is stopped is effectively solved.

Therefore, the utility model skillfully introduces the dust into the dust collection device by taking the high-speed rotating air flow generated by the vertical shaft impact crusher as power through a simple structural design, which is beneficial to avoiding the energy consumption of dust collection, realizing the efficient recovery of the dust and the decompression orderly discharge of the air flow, fundamentally avoiding the generation of secondary dust, simultaneously having extremely low investment and dust collection operation cost, and effectively solving the technical problems of unsatisfactory secondary dust and dust collection effect, high energy consumption, high investment and operation cost caused by the discharge of the high-speed rotating air flow in the existing dust collection technology of the vertical shaft impact crusher.

It should be apparent that the above-described embodiments are merely some, but not all, embodiments of the present utility model. The above examples are only for explaining the present utility model and do not limit the scope of the present utility model. Based on the above embodiments, all other embodiments, i.e. all modifications, equivalents and improvements made within the spirit and principles of the present application, which are obtained by persons skilled in the art without making creative efforts are within the scope of the present utility model claimed.

Claims

1. The dust collection device for the vertical shaft impact crusher is characterized by comprising a feeding hopper (3), an elastic sealing plate (4), a double-fork type discharging hopper (6), a first dust collection pipe (7), a second dust collection pipe (8), a third dust collection pipe (9), a first sealing cover (10), a dust collection box (13), an induced air pipe (14) and a sedimentation tank (15); a feeding belt conveyor (1) is arranged above the crusher (5), a discharging belt conveyor (11) is arranged below the crusher, a feeding chute is arranged at a discharge hole of the feeding belt conveyor (1), a feed hole of the feed hopper (3) is communicated with a discharge hole of the feeding chute, a discharge hole of the feed hopper is communicated with a feed hole of the crusher (5), baffles are inwards extended at the left side and the right side of the feed hole of the feed hopper (3), and one end of the elastic sealing plate (4) is fixed on the right baffle, and the other end of the elastic sealing plate is positioned below the left baffle;

the double-fork type discharging hopper (6) comprises a left discharging hopper (6-1), a right discharging hopper (6-2) and a discharging box (6-3), two mounting holes are symmetrically formed in two sides of the top of the discharging box (6-3), discharging holes of the left discharging hopper (6-1) and the right discharging hopper (6-2) are respectively fixed in the two mounting holes, and the feeding holes are respectively communicated with two discharging holes of the crusher (5); the first sealing cover (10) is arranged at the tail part of the blanking belt conveyor (11), and a discharge hole formed in the bottom of the blanking box (6-3) is communicated with a feed hole formed in the top of the first sealing cover (10);

the feeding ports of the first dust collecting pipes (7) are communicated with the top of the blanking box (6-3), the feeding ports of the second dust collecting pipes (8) are communicated with the top of the first sealing cover (10) and are positioned on one side, far away from the tail end of the blanking belt conveyor (11), of the blanking box (6-3), the feeding ports of the third dust collecting pipes (9) are communicated with the side wall of the blanking box (6-3), the discharging ports of all dust collecting pipes are communicated with one side of the dust collecting box (13), the bottom of the other side of the dust collecting box (13) is communicated with the air inlet of the air guide pipe (14), and the air outlet of the air guide pipe (14) extends into the sedimentation tank (15); all dust collecting pipes are communicated with a cleaning pipe (12), and a valve is arranged on the cleaning pipe (12).

2. Dust collector for vertical shaft impact crusher according to claim 1, characterized in that the discharge opening of the feed belt conveyor (1) is provided with a second sealing cap (2).

3. The dust collecting device for a vertical shaft impact crusher according to claim 1, wherein the hopper (3) comprises an upper feeding part and a lower feeding part which are communicated with each other, the lower feeding part is vertically arranged, the upper feeding part is obliquely arranged leftwards, the section of the hopper (3) perpendicular to a central line is rectangular, a feeding port of the upper feeding part is in butt joint with a discharging port of the feeding chute, a feeding port of the crusher (5) is communicated with an inverted circular table-shaped feeding hopper, and a discharging port of the lower feeding part extends into the inverted circular table-shaped feeding hopper and is in butt joint with a discharging port of the inverted circular table-shaped feeding hopper.

4. A dust collector apparatus for a vertical shaft impact crusher according to claim 3 wherein the angle between the center line of the upper feed portion and the center line of the lower feed portion is 130 ° to 150 °.

5. The dust collection device for the vertical shaft impact crusher according to claim 1, wherein the elastic sealing plate (4) comprises a plurality of first rubber sealing strips which are sequentially arranged, a first pressing plate is arranged above the right end of the elastic sealing plate (4), and the first pressing plate is fixedly connected with the tops of the right side baffle plates through screws and the plurality of first rubber sealing strips.

6. The dust collecting device for the vertical shaft impact crusher according to claim 1, wherein the head end of the first sealing cover (10) is provided with a discharge hole and nylon cloth, and the tail end of the nylon cloth is fixedly connected with the top end and two sides of the discharge hole of the first sealing cover (10); the tail end of the first sealing cover (10) is provided with a rubber sealing plate, the outer side of the rubber sealing plate is provided with a second pressing plate, the second pressing plate and the rubber sealing plate are fixedly connected with the outer wall of the tail end of the first sealing cover (10) through screws, the bottom end of the rubber sealing plate is contacted with a belt of the blanking belt conveyor (11), and the bottom end of the second pressing plate is higher than the bottom end of the rubber sealing plate; the two sides of the first sealing cover (10) are respectively provided with a second rubber sealing strip, the outer sides of the second rubber sealing strips are respectively provided with a third pressing plate, the third pressing plates and the second rubber sealing strips are fixedly connected with the outer walls of the corresponding sides of the first sealing cover (10) through screws, and the bottom ends of the second rubber sealing strips are in contact with a belt of the blanking belt conveyor (11).

7. The dust collecting device for a vertical shaft impact crusher according to claim 6, wherein the nylon cloth covers the length of the belt of the blanking belt conveyor (11) not less than 800mm.

8. The dust collection device for the vertical shaft impact crusher according to claim 1, wherein the first dust collection pipe (7) and the second dust collection pipe (8) comprise vertical pipes, horizontal pipes and downward inclined pipes which are sequentially communicated, the third dust collection pipe (9) comprises horizontal pipes and downward inclined pipes which are sequentially communicated, the vertical pipes of the first dust collection pipe (7) and the blanking box (6-3), the vertical pipes of the second dust collection pipe (8) and the first sealing cover (10) and the horizontal pipes of the third dust collection pipe (9) and the blanking box (6-3) are communicated through horn-shaped dust collection openings, and all the inclined pipes are communicated with the dust collection box (13); the water outlet of the cleaning pipe (12) is communicated with the highest point at the bottom of the corresponding horizontal pipe, the water outlet is provided with a spray head, and the spray head is clung to the inner wall at the bottom of the corresponding horizontal pipe and faces the dust conveying direction in the corresponding horizontal pipe.

9. The dust collecting device for the vertical shaft impact crusher according to claim 1, wherein the vertical section of the dust collecting box (13) is a pentagon with a right upper corner removed, the first dust collecting pipe (7), the second dust collecting pipe (8) and the third dust collecting pipe (9) are connected with the left side wall of the dust collecting box (13), and the induced air pipe (14) is connected with the right vertical side wall of the dust collecting box (13).

10. The dust collecting device for the vertical shaft impact crusher according to claim 1, wherein the vertical section of the sedimentation tank (15) is an inverted isosceles trapezoid, and the air outlet of the air guide pipe (14) is positioned at one side of the inner part of the sedimentation tank (15) far away from the inclined edge of the inverted isosceles trapezoid.