阅读说明：本技术 一种抗静电高分子片材加工原料洁净装置 (Clean device of antistatic polymer sheet processing raw materials ) 是由 高永飞 于 2021-08-05 设计创作，主要内容包括：本发明公开了一种抗静电高分子片材加工原料洁净装置,涉及抗静电高分子材料加工设备技术领域,包括除杂箱体,还包括输送组件以及风选组件,输送组件用于将外界物料输送至风选组件一侧进行风选除杂；风选组件包括风选室,风选室下方依次安装第一储料箱、第二储料箱以及第三储料箱,用于对除杂后的物料进行储存；输送组件将物料输送至送风组件部位,送风组件将物料的中的杂质和灰尘向吸风组件处吹送,吸风组件可以再次提供风力,将灰尘与杂质向吸风组件处吸附过滤,有效弥补了部分杂质与灰尘由于风力的减弱而随物料一同落至第一储料箱、第二储料箱以及第三储料箱内,具有高效、高精确度除杂的效果。(The invention discloses a cleaning device for processing raw materials of an antistatic polymer sheet, which relates to the technical field of antistatic polymer material processing equipment, and comprises an impurity removal box body, a conveying component and a winnowing component, wherein the conveying component is used for conveying an external material to one side of the winnowing component for winnowing and impurity removal; the air separation component comprises an air separation chamber, wherein a first storage box, a second storage box and a third storage box are sequentially arranged below the air separation chamber and used for storing the materials after impurity removal; the conveying assembly conveys the material to the air supply assembly position, and the air supply assembly blows impurity and dust in with the material to the subassembly department of induced drafting, and the subassembly of induced drafting can provide wind-force once more, adsorbs the filtration with dust and impurity to the subassembly department of induced drafting, has effectively compensatied partial impurity and dust because weakening of wind-force and has fallen to first storage case, second storage case and third storage incasement along with the material together, has the effect of high efficiency, high accuracy edulcoration.)

1. The device for cleaning the antistatic polymer sheet processing raw materials comprises an impurity removal box body (1), and is characterized by further comprising a conveying assembly and a winnowing assembly;

the conveying assembly and the winnowing assembly are both arranged in the impurity removal box body (1), and the conveying assembly is used for conveying external materials to one side of the winnowing assembly for winnowing and impurity removal;

the winnowing component comprises a winnowing chamber (3), wherein a first storage box (37), a second storage box (36) and a third storage box (35) are sequentially arranged below the winnowing chamber (3) and used for storing the materials after impurity removal;

the winnowing component further comprises an air supply component and an air suction component, the air supply component and the air suction component are arranged at two ends of the impurity removal box body (1) oppositely, the air supply component is used for blowing impurities in materials conveyed by the conveying component to the air suction component, and the air suction component is used for adsorbing, filtering and collecting the impurities blown to the materials through the air supply component.

2. The cleaning device for processing raw materials of antistatic polymer sheets as claimed in claim 1, wherein the conveying assembly comprises a conveying cylinder (4), the conveying cylinder (4) is installed at the top in the impurity removal box body (1), a feed inlet (12) is formed in the top end of one side of the conveying cylinder (4), a flood dragon blade conveying rod (2) is arranged between the conveying cylinders (4), a driving motor (15) is arranged at one end of the outer side of the impurity removal box body (1), the output end of the driving motor (15) penetrates through the side wall of the impurity removal box body (1) and is fixedly connected with the flood dragon blade conveying rod (2), a first-stage filter screen (11), a second-stage filter screen (10) and a third-stage filter screen (9) are arranged at the bottom of the conveying cylinder (4), the first-stage filter screen (11), the second-stage filter screen (10) and the third-stage filter screen (9) are communicated with the winnowing chamber (3), and the first-stage filter screen (11), The diameters of the filter screen holes of the second-level filter screen (10) and the third-level filter screen (9) are increased in sequence.

3. The device for cleaning antistatic polymer sheet processing raw material according to claim 1 or 2, wherein the air supply assembly comprises an air supply box (5), the air supply box (5) is fixedly installed between the side walls of the trash box body (1), an air cylinder (31) is arranged at the bottom of the trash box body (1), a first air cavity (38) is arranged at one side of the air cylinder (31) facing the air supply box (5), a first air supply pipe (8) is arranged at the top of the first air cavity (38), an air supply outlet (6) is arranged in the air supply box (5), one end of the first air supply pipe (8) far away from the first air cavity (38) is connected with the air supply outlet (6), a first air inlet pipe (39) is arranged at one side of the first air cavity (38) opposite to the first air supply pipe (8), a one-way valve limited to air inlet is arranged between the first air inlet pipes (39), and a one-way valve limited to air outlet is arranged between the first air supply pipes (8), the piston (30) is oppositely arranged in the cylinder (31), and the piston (30) is connected with a pushing component for pushing the piston to reciprocate in the cylinder (31).

4. The device for cleaning antistatic polymer sheet processing raw material according to claim 3, wherein the air suction assembly comprises an air suction box (19), the air suction box (19) is fixedly connected with the air supply box (5) and the side wall of the impurity removal box body (1) relatively, the air suction box (19) comprises an air suction opening (17), a second air cavity (25) is arranged in one side of the cylinder (31) relative to the first air cavity (38), the top of the second air cavity (25) is connected with a second air inlet pipe (21), one side of the second air cavity (25) relative to the second air inlet pipe (21) is connected with a second air supply pipe (26), one end of the second air inlet pipe (21) far away from the cylinder (31) is communicated with the air suction opening (17), a one-way valve limited to air inlet is arranged between the second air inlet pipes (21), and a one-way valve limited to air exhaust is arranged between the second air supply pipes (26), a precise filter screen (18) is arranged between the air suction boxes (19), and one side opposite to the air suction opening (17) is connected with an ash removing component.

5. The cleaning device for the antistatic polymer sheet processing raw material as claimed in claim 4, wherein the pushing component comprises a first bevel gear (14), the output end of the driving motor (15) is fixedly connected with the first bevel gear (14), the first bevel gear (14) is meshed with a second bevel gear (16), one end of the second bevel gear (16) far away from the first bevel gear (14) is fixedly connected with a rotating shaft (7), the tail end of the rotating shaft (7) extends to be fixedly connected with a half gear (23), the pistons (30) on two sides are respectively fixedly connected with a rack plate (22) through guide rods (13), the rack plate (22) is intermittently meshed with the half gear (23), an expansion spring (32) is arranged on the outer side of the guide rods (13), one end of the expansion spring (32) is fixedly connected with the cylinder (31), and the other end of the expansion spring is fixedly connected with the rack plate (22).

6. The device for cleaning the antistatic polymer sheet processing raw material as claimed in claim 5, wherein a third air cavity (27) is arranged between the air cylinders (31), the top end of the third air cavity (27) is connected with a third air supply pipe (28), one side of the third air supply pipe (28) is connected with a third air inlet pipe (29), air supply branch pipes (34) are arranged among the first storage tank (37), the second storage tank (36) and the third storage tank (35), one side of each air supply branch pipe (34) facing the air separation chamber (3) is provided with an air blowing port (33), a filter screen is arranged among the air blowing ports (33), the bottom ends of the air supply branch pipes (34) are respectively communicated with the third air supply pipe (28), one-way valves only used for air outlet are arranged among the third air supply pipes (28), and one-way valves only used for air inlet are arranged among the third air inlet pipes (29).

7. The device for cleaning the antistatic polymer sheet processing raw material as claimed in claim 6, wherein the dust removing component comprises a dust storage box (20), the dust storage box (20) is inserted between the side walls of the impurity removing box body (1), a dust storage port of the dust storage box (20) is communicated with an upper air suction box (19), and dust falling in the air suction box (19) can fall into the dust storage box (20) through the dust storage port under the action of gravity.

8. The cleaning device for the antistatic polymer sheet processing raw material as claimed in claim 7, wherein the bottom wall of the impurity removing box body (1) is symmetrically and fixedly provided with supporting legs (24) at two sides, and the supporting legs (24) are used for fixedly supporting the equipment.

Technical Field

The invention relates to the technical field of antistatic high polymer material processing equipment, in particular to a cleaning device for processing raw materials of an antistatic high polymer sheet.

Background

The antistatic polymer material is mostly a composite material with a surface composite conductive layer or filled with conductive filler, and the antistatic polymer material can also be composed of intrinsic conductive polymer material. Antistatic polymer materials are widely used in the field of manufacturing and using precision electronic instruments where dust and gas explosion prevention is required.

The raw materials of the antistatic polymer sheet need to be screened and decontaminated in the production and processing process, in the prior art, an air blower is usually adopted to carry out winnowing and decontamination on impurities in the materials, however, the screening mode has great disadvantages, when the wind power of the air blower is too small, because the blown wind power is gradually weakened along with the increase of the distance between the blown wind power and an air supply assembly, part of impurities and dust can fall down along with the materials, when the wind power of the air blower is too large, the small particle materials in departments can be blown into a filter box along with the impurities, and therefore, the defects are great.

Disclosure of Invention

The invention aims to provide a device for cleaning antistatic high polymer sheet processing raw materials, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an antistatic polymer sheet processing raw material cleaning device comprises an impurity removal box body, a conveying assembly and a winnowing assembly;

the conveying assembly and the winnowing assembly are arranged in the impurity removal box body, and the conveying assembly is used for conveying external materials to one side of the winnowing assembly to perform winnowing impurity removal;

the air separation component comprises an air separation chamber, wherein a first storage box, a second storage box and a third storage box are sequentially arranged below the air separation chamber and used for storing the materials after impurity removal;

the winnowing subassembly still includes the air supply subassembly and the subassembly that induced drafts, the air supply subassembly with induced drafts subassembly relative arrangement at edulcoration box both ends, the air supply subassembly is arranged in blowing to the subassembly that induced drafts with the impurity in the material that the conveying subassembly was carried, the subassembly that induced drafts is used for adsorbing the filtration collection through the impurity that the air supply subassembly blown to.

Preferably, conveying component includes a conveying cylinder, a conveying cylinder is installed at the top in the edulcoration box, conveying cylinder one side top sets up the feed inlet, set up flood dragon blade and carry the pole between the conveying cylinder, edulcoration box outside one end sets up driving motor, the driving motor output runs through edulcoration box lateral wall and flood dragon blade and carries pole fixed connection, the conveying cylinder bottom sets up one-level filter screen, second grade filter screen and tertiary filter screen, one-level filter screen, second grade filter screen and tertiary filter screen and air separation chamber intercommunication, the filter screen hole diameter of one-level filter screen, second grade filter screen and tertiary filter screen increases in proper order.

Preferably, the air supply assembly comprises an air supply box, the air supply box is fixedly installed between side walls of the impurity removal box body, a cylinder is arranged at the bottom of the impurity removal box body, a first air cavity is arranged on the cylinder towards one side of the air supply box, a first air supply pipe is arranged at the top of the first air cavity, an air supply opening is formed in the air supply box, one end, away from the first air cavity, of the first air supply pipe is connected with the air supply opening, a first air inlet pipe is arranged on one side of the first air supply pipe relative to the first air cavity, a check valve only used for air inlet is arranged between the first air inlet pipes, a check valve only used for air outlet is arranged between the first air supply pipes, a piston is arranged in the cylinder relatively, and the piston is connected with a pushing component used for pushing the piston to reciprocate in the cylinder.

Preferably, the subassembly that induced drafts includes the case that induced drafts, induced drafts the case relative with supply-air box and edulcoration box lateral wall fixed connection, the case that induced drafts includes the inlet scoop, set up the second air chamber for one side of first air chamber in the cylinder, second air chamber top connection second air-supply pipe, second air chamber are connected the second supply-air pipe for one side of second air-supply pipe, and the one end and the inlet scoop intercommunication of cylinder are kept away from to the second air-supply pipe, set up the check valve that only admits air between the second air-supply pipe, are provided with the check valve that only limits only to exhaust between the second air-supply pipe, set up the precision filter screen between the case that induced drafts, are connected the ash removal part with one side that the inlet scoop is relative.

Preferably, the pushing component comprises a first bevel gear, the output end of the driving motor is fixedly connected with the first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is far away from one end of a rotating shaft of the first bevel gear, the tail end of the rotating shaft extends to be fixedly connected with a half gear and two sides of the rotating shaft, the piston extends to be fixedly connected with a rack plate through a guide rod respectively, the rack plate is intermittently meshed with the half gear, an extension spring is arranged on the outer side of the guide rod, one end of the extension spring is fixedly connected with a cylinder, and one end of the extension spring is fixedly connected with the rack plate.

Preferably, be provided with the third air cavity between the cylinder, third blast pipe is connected on third air cavity top, connects the third inlet air pipe for one side of third blast pipe, all set up air supply branch pipe between first storage case, second storage case and third storage case, air supply branch pipe sets up the mouth of blowing towards one side of air separation chamber, sets up the filter screen between the mouth of blowing, air supply branch pipe bottom respectively with third blast pipe intercommunication, be equipped with the check valve that only gives vent to anger between the third blast pipe, be equipped with the check valve that only admits air between the third inlet air pipe.

Preferably, the ash removal part includes the ash storage box, the ash storage box is pegged graft between edulcoration box side wall, the ash storage mouth and the top case intercommunication that induced drafts of ash storage box, the dust that falls in the case that induced drafts can fall to the ash storage incasement through the ash storage mouth under the action of gravity.

Preferably, the supporting legs are symmetrically and fixedly installed on two sides of the bottom wall of the impurity removing box body and used for fixedly supporting the equipment.

Compared with the prior art, the invention has the beneficial effects that:

the method comprises the steps of placing a material to be purified at one end of a conveying assembly, starting the conveying assembly, conveying the material to an air supply assembly part by the conveying assembly, enabling the material and impurities in the conveying assembly to fall under the action of gravity, starting the air supply assembly in the falling process, blowing the impurities and dust in the material to an air suction assembly by the air supply assembly due to the fact that the mass of the impurities and the mass of the dust are far smaller than that of the material, enabling the material to fall into a first material storage box, a second material storage box and a third material storage box respectively, enabling the air suction assembly to provide wind again due to the fact that the wind force blown out by the air supply assembly is gradually weakened along with the increase of the distance between the air supply assembly and the air supply assembly, adsorbing and filtering the dust and the impurities to the air suction assembly, effectively making up the fact that part of the impurities and the dust fall into the first material storage box, the second material storage box and the third material storage box along with the material due to the weakening of the wind force, has the effect of high-efficiency and high-precision impurity removal.

Drawings

FIG. 1 is a schematic structural diagram of an apparatus for cleaning antistatic polymer sheet processing materials.

FIG. 2 is an enlarged schematic structural view of a cleaning apparatus for antistatic polymer sheet processing materials, shown in FIG. 1 at A.

Fig. 3 is a schematic structural diagram of a storage box in a device for cleaning antistatic polymer sheet processing raw materials.

FIG. 4 is a schematic view of a blowing port of an antistatic polymer sheet processing material cleaning device.

FIG. 5 is a schematic view of a dust storage box in a cleaning device for antistatic polymer sheet processing materials.

In the figure: 1-impurity removal box body; 2-flood dragon blade conveying rods; 3-an air separation chamber; 4-a delivery cylinder; 5-air supply box; 6-air supply outlet; 7-a rotating shaft; 8-a first blast pipe; 9-three-stage filter screen; 10-a secondary filter screen; 11-first-stage filter screen; 12-a feed inlet; 13-a guide bar; 14-bevel gear one; 15-driving the motor; 16-bevel gear two; 17-an air suction opening; 18-precision screen; 19-an air suction box; 20-ash storage box; 21-a second air inlet pipe; 22-a rack plate; 23-half gear; 24-support legs; 25-a second air cavity; 26-a second air supply pipe; 27-a third air cavity; 28-a third blast pipe; 29-a third air inlet pipe; 30-a piston; 31-a cylinder; 32-a telescoping spring; 33-blowing-up port; 34-air supply branch pipes; 35-a third storage bin; 36-a second storage bin; 37-a first storage bin; 38-a first air cavity; 39-first air inlet pipe.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific embodiments.

Referring to fig. 1-3, an apparatus for cleaning antistatic polymer sheet processing material comprises an impurity removing box 1, a conveying assembly and a winnowing assembly, the conveying component and the winnowing component are both arranged in the impurity removal box body 1, the conveying component is used for conveying external materials to one side of the winnowing component for winnowing and impurity removal, the winnowing component comprises a winnowing chamber 3, a first storage box 37, a second storage box 36 and a third storage box 35 are sequentially arranged below the winnowing chamber 3, used for storing the materials after impurity removal, the winnowing component also comprises an air supply component and an air suction component, the air supply assembly and the air suction assembly are oppositely arranged at two ends of the impurity removal box body 1, the air supply assembly is used for blowing impurities in the materials conveyed by the conveying assembly to the air suction assembly, and the air suction assembly is used for adsorbing, filtering and collecting the impurities blown by the air supply assembly;

specifically, in this embodiment, a material to be purified is placed at one end of the conveying assembly, the conveying assembly is started, the conveying assembly conveys the material to the air supply assembly, under the action of gravity, the material and the impurities in the conveying assembly fall, and in the falling process, the air supply assembly is started, since the mass of the impurities and the mass of the dust are far smaller than that of the material, the air supply assembly blows the impurities and the dust in the material to the air suction assembly, the material falls into the first storage box 37, the second storage box 36 and the third storage box 35 respectively, however, the wind force blown by the air supply assembly is gradually weakened along with the increase of the distance from the air supply assembly, the air suction assembly can provide wind force again, the dust and the impurities are adsorbed and filtered to the air suction assembly, and part of the impurities and the dust fall into the first storage box 37 along with the material due to the weakening of the wind force, and the problem that part of the impurities and the dust fall into the first storage box 37 along with the material due to the weakening of the wind force is effectively solved, The second storage box 36 and the third storage box 35 have an efficient and highly accurate impurity removal effect.

As a further scheme of the embodiment of the invention, the conveying assembly comprises a conveying cylinder 4, the conveying cylinder 4 is installed at the top in the impurity removing box body 1, a feed inlet 12 is formed in the top end of one side of the conveying cylinder 4, an auger blade conveying rod 2 is arranged between the conveying cylinders 4, a driving motor 15 is arranged at one end of the outer side of the impurity removing box body 1, the output end of the driving motor 15 penetrates through the side wall of the impurity removing box body 1 and is fixedly connected with the auger blade conveying rod 2, a primary filter screen 11, a secondary filter screen 10 and a tertiary filter screen 9 are arranged at the bottom of the conveying cylinder 4, the primary filter screen 11, the secondary filter screen 10 and the tertiary filter screen 9 are communicated with the winnowing chamber 3, and the diameters of the filter screens of the primary filter screen 11, the secondary filter screen 10 and the tertiary filter screen 9 are sequentially increased;

specifically, in this embodiment, to wait to screen edulcoration material and add to transport cylinder 4 in through feed inlet 12, start driving motor 15, driving motor 15 drives flood dragon blade and carries pole 2 and rotate, flood dragon blade is carried pole 2 and is carried the material by one-level filter screen 11 to tertiary filter screen 9 department in proper order, at the in-process of carrying, partial impurity and granule pass one-level filter screen 11 respectively, second grade filter screen 10 and tertiary filter screen 9 fall to winnowing chamber 3 in, through one-level filter screen 11, setting gradually of second grade filter screen 10 and tertiary filter screen 9, can guarantee to fall in the even follow transport cylinder 4 of in-process material of carrying, effectively avoid material once only to fall in the traditional mode, lead to the selection by winnowing subassembly to be difficult to effectively with the phenomenon of impurity follow material detached.

As a further scheme of the embodiment of the invention, the air supply assembly comprises an air supply box 5, the air supply box 5 is fixedly installed between the side walls of the trash box body 1, a cylinder 31 is arranged at the bottom of the trash box body 1, a first air cavity 38 is arranged on one side of the cylinder 31 facing the air supply box 5, a first air supply pipe 8 is arranged at the top of the first air cavity 38, an air supply outlet 6 is arranged in the air supply box 5, one end, far away from the first air cavity 38, of the first air supply pipe 8 is connected with the air supply outlet 6, a first air inlet pipe 39 is arranged on one side of the first air cavity 38 opposite to the first air supply pipe 8, a one-way valve limited to air inlet is arranged between the first air inlet pipes 39, a one-way valve limited to air outlet is arranged between the first air supply pipes 8, a piston 30 is oppositely arranged in the cylinder 31, and the piston 30 is connected with a pushing component for pushing the piston to reciprocate in the cylinder 31;

specifically, in the present embodiment, the piston 30 is pushed by the pushing member to reciprocate in the cylinder 31, and the cylinder 31 sucks the external air into the first air chamber 38 through the first air inlet duct 39 and delivers the external air to the air blowing port 6 through the first air blowing duct 30.

As a further scheme of the embodiment of the invention, the air suction assembly comprises an air suction box 19, the air suction box 19 is fixedly connected with the side wall of the impurity removing box body 1 relative to the air supply box 5, the air suction box 19 comprises an air suction opening 17, one side of the cylinder 31 relative to the first air cavity 38 is provided with a second air cavity 25, the top of the second air cavity 25 is connected with a second air inlet pipe 21, one side of the second air cavity 25 relative to the second air inlet pipe 21 is connected with a second air supply pipe 26, one end of the second air inlet pipe 21 far away from the cylinder 31 is communicated with the air suction opening 17, a one-way valve limited to air inlet is arranged between the second air inlet pipes 21, a one-way valve limited to exhaust is arranged between the second air supply pipes 26, a precision filter screen 18 is arranged between the air suction boxes 19, and one side of the air suction opening 17 is connected with an ash removing component;

specifically, in this embodiment, the piston 30 is pushed by the pushing component to reciprocate in the cylinder 31, the cylinder 31 sucks air into the second air cavity 25 through the air suction opening 17 and the second air inlet pipe 21 and discharges the air through the second air supply pipe 26, the filter screen 18 filters dust and impurities in the air sucked into the air suction opening 17, and the dust and the impurities fall into the dust removing component under the action of gravity.

As a further scheme of the embodiment of the invention, the pushing component comprises a first bevel gear 14, the output end of the driving motor 15 is fixedly connected with the first bevel gear 14, the first bevel gear 14 is meshed with a second bevel gear 16, one end of the second bevel gear 16, which is far away from the first bevel gear 14, is fixedly connected with a rotating shaft 7, the tail end of the rotating shaft 7 extends and is fixedly connected with a half gear 23, the pistons 30 on two sides respectively extend and are fixedly connected with a rack plate 22 through guide rods 13, the rack plate 22 is intermittently meshed with the half gear 23, an extension spring 32 is arranged on the outer side of the guide rods 13, one end of the extension spring 32 is fixedly connected with a cylinder 31, and the other end of the extension spring is fixedly connected with the rack plate 22;

specifically, in this embodiment, the driving motor 15 drives the first bevel gear 14 to rotate, the first bevel gear 14 drives the rotating shaft 7 to rotate and the half gear 23 to rotate by rotating with the second bevel gear 16, the half gear 23 pushes the two side guide rods 13 and the piston 30 to move inwards at the same time by meshing with the rack plate 22, the rack plate 22 extrudes the extension spring 32 to contract to generate elastic force, and when the half gear 23 loses meshing with the rack plate 22, the extension spring 32 pushes the piston 30 to reset under the action of the elastic force.

As a further scheme of the embodiment of the present invention, a third air cavity 27 is disposed between the air cylinders 31, the top end of the third air cavity 27 is connected to a third air supply pipe 28, one side of the third air supply pipe 28 is connected to a third air supply pipe 29, air supply branch pipes 34 are disposed between the first storage tank 37, the second storage tank 36 and the third storage tank 35, one side of the air supply branch pipes 34 facing the air separation chamber 3 is provided with air blowing ports 33, a filter screen is disposed between the air blowing ports 33, the bottom ends of the air supply branch pipes 34 are respectively communicated with the third air supply pipe 28, a one-way valve limited to air outlet is disposed between the third air supply pipes 28, and a one-way valve limited to air inlet is disposed between the third air supply pipes 29;

specifically, in the present embodiment, by reciprocating the pistons 30 in the cylinders 31 on both sides, the cylinders 31 draw the outside air into the third air chamber 27 through the third air inlet pipe 29 and deliver the outside air to the air blowing ports 33 through the third air delivery pipe 28, and by providing the air blowing ports 33, part of the dust and impurities falling down to the first storage tank 37, the second storage tank 36 and the third storage tank 35 along with the material can be effectively blown up into the air separation chamber 3 again.

As a further solution of the embodiment of the present invention, referring to fig. 1-5, the dust removing component includes a dust storage box 20, the dust storage box 20 is inserted between the side walls of the impurity removing box body 1, a dust storage opening of the dust storage box 20 is communicated with an upper suction box 19, and dust falling from the suction box 19 can fall into the dust storage box 20 through the dust storage opening under the action of gravity.

As a further scheme of the embodiment of the invention, supporting legs 24 are symmetrically and fixedly arranged on two sides of the bottom wall of the impurity removing box body 1, and the supporting legs 24 are used for fixedly supporting the equipment.

The working principle of the invention is as follows: placing a material to be subjected to impurity removal at one end of a conveying component, starting a driving motor 15, driving the driving motor 15 to drive a dragon blade conveying rod 2 to rotate, conveying the material to a third-stage filter screen 9 from a first-stage filter screen 11 by the dragon blade conveying rod 2, enabling partial impurities and particles to pass through the first-stage filter screen 11, the second-stage filter screen 10 and the third-stage filter screen 9 respectively and fall into a winnowing chamber 3 in the conveying process, ensuring that the material uniformly falls from a conveying cylinder 4 in the conveying process by sequentially arranging the first-stage filter screen 11, the second-stage filter screen 10 and the third-stage filter screen 9, effectively avoiding the phenomenon that the impurities are difficult to be effectively removed from the material by the winnowing component in the traditional mode because the mass of the impurities and the dust is far smaller than that of the material, starting an air supply component to blow the impurities and the dust in the material to the air suction component in the falling process, the materials respectively fall into the first storage box 37, the second storage box 36 and the third storage box 35, however, the wind power blown by the air supply assembly gradually weakens along with the increase of the distance from the air supply assembly, the air suction assembly can provide the wind power again to adsorb and filter the dust and the impurities to the air suction assembly, so that the problem that part of the impurities and the dust fall into the first storage box 37, the second storage box 36 and the third storage box 35 along with the materials due to the weakening of the wind power is effectively solved, and the high-efficiency and high-accuracy impurity removal effect is achieved.

While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.