Purification device for treating soil heavy metal pollution

Abstract

The invention provides a purification device for treating soil heavy metal pollution, and belongs to the technical field of soil treatment, the purification device comprises a treatment frame assembly, an inner reaction barrel assembly, a vibration material dispersing assembly, a raking component, a medicament spraying assembly, a lifting component, a discharging opening and closing assembly and a discharging assembly, soil can be conveyed to the vibration barrel while crushing teeth are utilized to crush the soil in advance, the vibration barrel is driven to move up and down in a reciprocating mode in a rotating state through cooperation of a curved-surface circumferential sliding way of a unique structure and a sliding wheel, and the raking component is used in a combined mode, so that the raking effect is improved. The soil before treatment can be efficiently and multiply crushed; the pesticide spraying assembly and the lifting component are used together, so that pesticide uniform scattering action can be performed on soil particles falling into the reaction barrel, and uniform mixing is realized; and the discharging opening and closing assembly is matched with the discharging assembly, so that automatic discharging work can be realized on the basis of safety.

Description

Technical Field

[0001] The present invention relates to the technical field of soil treatment, and particularly relates to a purification device for treating heavy metal pollution in soil. Background Art

[0002] Improper industrial emissions of waste water and waste residues from industries such as metallurgy, electroplating, and chemical engineering, as well as agricultural pollution caused by long-term use of pesticides and fertilizers containing heavy metals (such as cadmium in phosphate fertilizers) and sewage irrigation, are the main sources of heavy metals in soil. This not only directly destroys the soil microbial community, reduces soil fertility, but also accumulates through the food chain, affects the growth of animals and plants, and poses a hazard to human health.

[0003] In the prior art, before the agent reacts with the soil, in order to improve the uniformity of the contact reaction between the soil and the agent, simple stirring or tilling actions are mostly relied on to pre-treat the soil. However, in actual operation, due to the lack of an efficient pre-crushing process for the soil, large pieces of soil cannot come into contact with the agent for reaction, resulting in low reaction efficiency. Especially for clayey soil, there are disadvantages of poor applicability. Summary of the Invention

[0004] The purpose of the present invention is to provide a purification device for treating heavy metal pollution in soil. The conical spiral column and the vibrating material cylinder form a cooperative drive, which can both convey the soil to the vibrating material cylinder and perform prior crushing of the soil using the crushing teeth. Combining the curved surface circumferential slideway and the sliding wheel to form a rolling contact, driving the vibrating material cylinder to form a reciprocating up and down movement under rotation, and using the raking and dispersing component to perform multiple crushing operations on the soil before it enters the reaction barrel, so that the soil can be fully crushed before reacting with the agent. And using the cooperation of the lifting component and the vibrating and dispersing component to realize the lifting and turning operation of the soil particles entering the reaction barrel during the spraying process of the agent spraying component, improving the reaction contact uniformity between the agent and the soil particles.

[0005] The purpose of the present invention is achieved through the following technical solution. A purification device for treating heavy metal pollution in soil includes a treatment frame assembly, an inner reaction barrel assembly, a vibrating and dispersing assembly, a raking and dispersing component, an agent spraying component, and a lifting component. The treatment frame assembly includes a main barrel body and crushing teeth. The inner reaction barrel assembly includes a reaction barrel. The vibrating and dispersing assembly includes a vibrating material cylinder, a curved surface circumferential slideway, and a sliding wheel. The raking and dispersing component includes raking claws. The agent spraying component includes a spraying pipe. The lifting component includes lifting claws;

[0006] One side of the top wall of the main barrel body is rotatably connected with a conical spiral column. Crushing teeth are arranged on the outer surface of the spiral of the conical spiral column. The reaction barrel is rotatably connected to the inner bottom end of the main barrel body. A hexagonal column is rotatably connected to the middle of the upper inner part of the main barrel body. The middle part of the inner part of the vibrating material cylinder elastically bounces upward and is slidably connected with the hexagonal column. The curved surface circumferential slideway is fixedly connected to the outer surface of the vibrating material cylinder. The bottom surfaces of the sliding wheels rotatably connected to the inner wall of the main barrel body are all in rolling connection with the top surface of the curved surface circumferential slideway. The top end of the curved surface circumferential slideway is in transmission connection with the top end of the conical spiral column. The rake claws elastically bounce downward and are slidably connected to the upper inner part of the main barrel body;

[0007] A Y-shaped fixed pipe is fixedly connected to the middle part of the inner part of the main barrel body. The spraying pipe is installed in the branch pipe of the Y-shaped fixed pipe. A top connection rotary seat is rotatably connected to the outer bottom of the vibrating material cylinder. The top ends of the arranged and distributed lifting claws are respectively slidably connected with the Y-shaped fixed pipe and are all fixedly connected to the top connection rotary seat.

[0008] The use process of the technical solution of the present invention is as follows:

[0009] When the conical spiral column rotates, the soil to be treated externally can be conveyed by the conical spiral column to the inner top of the main barrel body and fall into the inner groove of the vibrating material cylinder. The bottom of the vibrating material cylinder is provided with vibrating sieve holes. When the conical spiral column rotates, it can synchronously drive the hexagonal column to form a rotating action. The hexagonal column drives the vibrating material cylinder to rotate. When the vibrating material cylinder rotates, through the elastic cooperation transmission formed by the upward bounce of the curved surface circumferential slideway fixedly connected to the vibrating material cylinder and the sliding wheel, the vibrating material cylinder can be driven to reciprocally move up and down along the undulating path of the curved surface circumferential slideway during rotation, and perform a vibrating sieve action on the soil falling into the inner groove of the vibrating material cylinder;

[0010] Within the range of the reciprocating up and down movement stroke of the vibrating material cylinder, the bottom end of the rake claws is always elastically abutted against the inner groove surface of the vibrating material cylinder. Cooperating with the rotation and reciprocating up and down movement actions formed by the vibrating material cylinder itself, the rake claws can perform a crushing operation on the soil entering the inner groove of the vibrating material cylinder;

[0011] The crushed soil particles fall downward into the inner cavity of the reaction barrel. After accumulating to a certain extent, an external chemical agent supply device connected to the spraying pipe is started, so that the treatment chemical agent is only sprayed downward from the outlets of each group of spraying pipes into the inner cavity of the reaction barrel;

[0012] The chemical agent interacts with the heavy metals in the soil to achieve the dissolution of heavy metals. Subsequently, through the soil leaching and remediation process, the heavy metals can be recovered from it, realizing the purification operation of heavy metals in the soil;

[0013] After laying a layer of soil particles flat on the inner cavity bottom surface of the reaction barrel, an external chemical agent supply device connected to the spraying pipe can be started, so that as the soil particles vibrate and sieve from the vibrating material cylinder to the reaction barrel, the chemical agent continuously sprayed from the spraying pipe can uniformly contact and react with the soil particles;

[0014] In addition, the reaction barrel itself can also rotate automatically, and cooperate with the reciprocating up and down movement of the vibrating barrel, which can drive the top connecting rotating seat and the lifting claw that are slidably connected to the Y-shaped fixed tube and screwed to the outer bottom of the vibrating barrel to form a reciprocating up and down movement, so that the lifting claw can form a lifting and turning action on the soil particles falling into the reaction barrel, so that the contact reaction between the soil particles in the reaction barrel and the reagent is more uniform.

[0015] By adopting the above technical solution, the present invention can achieve the following beneficial effects:

[0016] (1) The purpose of setting the conical spiral column in a conical shape and a variable pitch structure in the present invention is to provide a larger accommodation space through the large diameter of the inlet end to prevent soil accumulation and blockage. At the same time, the crushing teeth provided on the outer surface of the spiral of the conical spiral column can generate radial extrusion force by using the conical surface, thereby promoting frictional crushing of soil particles.

[0017] (2) When the conical spiral column rotates, the present invention can also synchronously drive the hexagonal column to form a continuous rotational motion. By utilizing the vibrating barrel that is elastically slidably connected to the hexagonal column upward, in conjunction with the rolling contact formed by the curved circumferential slideway outside the vibrating barrel and the sliding wheel at a fixed position, the vibrating barrel can be driven to form a reciprocating up and down motion while rotating. The reciprocating up and down motion of the vibrating barrel itself can not only form a vibrating sieve effect, but also, in conjunction with the rotational motion of the vibrating barrel itself, the rake claw that is always in contact with the inner groove surface of the vibrating barrel can form a rake-scattering operation on the soil that falls into the inner groove of the vibrating barrel, thereby efficiently crushing the soil.

[0018] (3) After the soil particles fall from the vibrating barrel into the reaction barrel, the reciprocating up and down movement of the vibrating barrel can also drive the lifting claws located in the inner cavity of the reaction barrel to form a lifting action in conjunction with the spraying operation of the spray pipe, thereby improving the uniformity of the contact reaction between the soil particles and the reagent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the processing rack assembly of the present invention from a first viewing angle;

[0022] Figure 3 It is a structural schematic diagram of the processing rack assembly of the present invention from a second viewing angle;

[0023] Figure 4 It is a schematic structural diagram of the conical spiral column part of the present invention;

[0024] Figure 5 It is a schematic structural diagram of the inner reaction barrel assembly of the present invention;

[0025] Figure 6 It is a schematic structural diagram of the vibrating material spreading assembly of the present invention;

[0026] Figure 7 It is a schematic structural diagram of the transmission between the hexagonal column and the conical spiral column of the present invention;

[0027] Figure 8 It is a schematic structural diagram of the curved surface circumferential slideway part of the present invention;

[0028] Figure 9 It is a schematic structural diagram of the rake spreading member of the present invention;

[0029] Figure 10 It is a schematic structural diagram of the medicament spraying assembly of the present invention;

[0030] Figure 11 It is a schematic structural diagram of the Y-shaped fixed pipe and the lifting slide seat part of the present invention;

[0031] Figure 12 It is a schematic structural diagram of the lifting member of the present invention;

[0032] Figure 13 It is a schematic structural diagram of the discharging rotary plate part of the present invention;

[0033] Figure 14 It is a schematic structural diagram of the discharging opening and closing assembly of the present invention;

[0034] Figure 15 It is a schematic transmission structural diagram of the discharging opening and closing assembly of the present invention;

[0035] Figure 16 It is a schematic structural diagram of the discharging assembly of the present invention.

[0036] Reference numerals:

[0037] 1. Processing frame assembly; 2. Inner reaction barrel assembly; 3. Vibration feeding assembly; 4. Raking and spreading member; 5. Chemical agent spraying assembly; 6. Lifting member; 7. Discharging opening and closing assembly; 8. Discharging assembly; 101. Bottom frame; 102. Main barrel body; 103. Feeding box; 104. Conical hopper; 105. Conical spiral column; 106. Bottom rotating base; 107. Material passing box; 108. Top rotating base; 109. Material passing hole; 110. Feeding bevel gear; 111. Crushing teeth; 201. Rotating sleeve; 202. Reaction barrel; 203. Hollow shaft; 204. Central bevel gear; 205. Servo motor; 206. Driving bevel gear; 301. Main rotating shaft; 302. Rotating motor; 303. Top seat of main shaft; 304. Hexagonal column; 305. Side sleeve; 306. Inner sliding frame; 307. Vibrating hopper; 308. Curved circumferential slideway; 309. Sliding wheel; 310. Rotating driving bevel gear; 311. Rotating bevel gear; 312. Top connecting bevel gear; 313. Vibration connecting spring; 314. Sliding wheel seat; 401. Top connecting arm; 402. Slide column; 403. Slide seat; 404. Bottom connecting plate of slide column; 405. Raking claw; 406. Follow-up compression spring; 501. Chemical agent tank; 502. Plunger pump; 503. Spraying pipe; 504. Spraying head; 505. Y-shaped pipe fixing; 601. Lifting slide seat; 602. Bottom connecting seat; 603. Top connecting rotating seat; 604. Lifting slide column; 605. Lifting claw; 701. Discharging hole; 702. Fixed shaft; 703. Discharging rotating plate; 704. Outer fixing sleeve; 705. Coil spring; 706. Positioning arm; 707. Positioning block; 708. Opening gear; 709. Pushing slide seat; 710. Pushing rack; 711. Side rod; 712. Travel switch; 713. Touching block; 714. Pushing motor; 715. Pushing gear; 801. Discharging hopper; 802. Discharging auger; 803. Side rotating seat; 804. Discharging bevel gear; 805. Discharging driving bevel gear. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] As Figures 1 - 16 shown, a purification device for treating heavy metal pollution in soil, a conical spiral column 105 is rotatably connected to the top wall on one side of the main barrel body 102 in the treatment rack assembly 1. The conical spiral column 105 is not only of a conical structure but also has a pitch that gradually decreases towards the main barrel body 102, which can realize the feeding work from the lower position to the higher position. Crushing teeth 111 are arranged on the outer surface of the spiral of the conical spiral column 105. The reaction barrel 202 is rotatably connected to the inner bottom end of the main barrel body 102. A hexagonal column 304 is rotatably connected to the middle of the upper inner end of the main barrel body 102. The middle part of the vibration feeding cylinder 307 elastically slides upwards and is in sliding connection with the hexagonal column 304. A curved surface circumferential slideway 308 is fixedly connected to the outer surface of the vibration feeding cylinder 307. The bottom surfaces of the rotatably connected sliding wheels 309 arranged on the inner wall of the main barrel body 102 are all in rolling connection with the top surface of the curved surface circumferential slideway 308. The top end of the curved surface circumferential slideway 308 is in transmission connection with the top end of the conical spiral column 105;

[0041] The curved surface circumferential slideway 308 is formed by connecting several groups of curved surface paths with the same undulating path. The bottom surfaces of several groups of rotatably connected sliding wheels 309 arranged on the inner wall of the main barrel body 102 can be respectively in rolling connection with the same positions at the top ends of the curved surfaces of each group of undulating paths with the same undulating path in the curved surface circumferential slideway 308;

[0042] The rake claws 405 elastically slide downwards and are in sliding connection with the upper inner part of the main barrel body 102, and the bottom of the rake claws 405 is inserted into the inner groove of the vibration feeding cylinder 307;

[0043] A Y-shaped fixed pipe 505 is fixedly connected to the middle part of the inner part of the main barrel body 102, and the Y-shaped fixed pipe 505 is located directly above the reaction barrel 202. The spraying pipe 503 is installed in the branch pipe of the Y-shaped fixed pipe 505 and is communicated with an external chemical agent supply device;

[0044] A top connection rotary seat 603 is rotatably connected to the outer bottom of the vibration feeding cylinder 307. The top ends of the arranged and distributed lifting claws 605 are respectively in sliding connection with the Y-shaped fixed pipe 505, and are all fixedly connected to the top connection rotary seat 603 and extend into the inner cavity of the reaction barrel 202;

[0045] The working principle is as follows:

[0046] When the conical spiral column 105 rotates, the soil to be processed outside can be conveyed by the conical spiral column 105 to the inner top of the main barrel 102 and then fall into the inner groove of the vibrating cylinder 307. The bottom of the vibrating cylinder 307 is provided with vibrating sieve holes. Since the top end of the hexagonal column 304 is drivingly connected to the top end of the conical spiral column 105, when the conical spiral column 105 rotates, it can synchronously drive the hexagonal column 304 to form a rotating motion. The hexagonal column 304 drives the vibrating cylinder 307 to rotate. Since the vibrating cylinder 307 is elastically and upwardly slidably connected to the hexagonal column 304, and the top end of the curved surface circumferential slideway 308 is always in elastic rolling contact with the sliding wheel 309, when the vibrating cylinder 307 rotates, it can drive the vibrating cylinder 307 to reciprocally move up and down along the undulating path of the curved surface circumferential slideway 308 itself through the cooperative drive formed by the upward elastic movement of the curved surface circumferential slideway 308 fixedly connected to the vibrating cylinder 307 and the sliding wheel 309, and perform a vibrating sieve action on the soil falling into the inner groove of the vibrating cylinder 307;

[0047] And because under the drive of the downward elastic movement of the rake claw 405 itself, within the range of the up-and-down reciprocating movement stroke of the vibrating cylinder 307, the bottom end of the rake claw 405 is always elastically abutted against the inner groove surface of the vibrating cylinder 307. Cooperating with the rotation and reciprocating up-and-down movement actions formed by the vibrating cylinder 307 itself, the rake claw 405 can perform a crushing operation on the soil entering the inner groove of the vibrating cylinder 307, aiming to eliminate the caking in the soil and make it form uniform granular shape, so that the soil can enter the reaction barrel 202 in granular form for the medicament spraying treatment operation;

[0048] The crushed soil particles fall downward into the inner cavity of the reaction barrel 202. After accumulating to a certain extent, start the external medicament supply device connected to the spraying pipe 503, so that the treatment medicament is only sprayed downward from the outlets of each group of spraying pipes 503 into the inner cavity of the reaction barrel 202;

[0049] The medicament interacts with the heavy metals in the soil to achieve the dissolution of heavy metals. Subsequently, through the soil leaching and remediation process, the heavy metals can be recovered from it, realizing the purification operation of heavy metals in the soil;

[0050] The spraying dose of the medicament is determined according to the treatment capacity of the reaction barrel 202. After laying a layer of soil particles flat on the inner cavity bottom surface of the reaction barrel 202, the external medicament supply device connected to the spraying pipe 503 can be started, so that as the soil particles fall from the vibrating sieve of the vibrating cylinder 307 to the reaction barrel 202, the medicament continuously sprayed from the spraying pipe 503 can uniformly contact and react with the soil particles;

[0051] The reaction barrel 202 itself can also rotate automatically, and cooperate with the reciprocating up and down movement of the vibrating barrel 307, which can drive the top connecting rotating seat 603 and the lifting claw 605 that are slidably connected to the Y-shaped fixed tube 505 and screwed to the outer bottom of the vibrating barrel 307 to form a reciprocating up and down movement. Due to the unique arrow-shaped structure of the lifting claw 605 itself, the lifting claw 605 can form a lifting and flipping action on the soil particles falling into the reaction barrel 202, so that the contact reaction between the soil particles in the reaction barrel 202 and the reagent is more uniform;

[0052] The bottom of the reaction barrel 202 is provided with a normally closed outlet, which can discharge the soil particles after being treated with the agent.

[0053] The specific structure of the processing rack assembly 1 and the inner reaction barrel assembly 2 is as follows: Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the main barrel body 102 is fixedly installed on one side of the top of the bottom frame 101, and the charging box 103 is fixedly installed on the other side of the top of the bottom frame 101. A conical barrel 104 is connected between the side wall of the main barrel body 102 and the side wall of the charging box 103. The conical spiral column 105 is screwed inside the conical barrel 104. The side wall profile of the conical barrel 104 matches the taper of the conical spiral column 105.

[0054] A bottom rotating seat 106 is fixedly installed on the bottom surface of the inner cavity of the feeding box 103, and the bottom end of the rotating shaft of the conical spiral column 105 is rotatably connected to the bottom rotating seat 106. A feeding box 107 is fixedly connected to the upper end of the inner wall of the main barrel body 102, and the outlet end of the conical barrel 104 extends into the inner cavity of the feeding box 107. A top rotating seat 108 is fixedly installed on the top of the feeding box 107, and the upper end of the rotating shaft of the conical spiral column 105 is rotatably connected to the top rotating seat 108. The feeding bevel gear 110 is plugged and fixed on the top of the rotating shaft of the conical spiral column 105. A feeding hole 109 is connected to the bottom of the feeding box 107, and the outlet of the feeding hole 109 is directly opposite to the inner groove position of the vibrating barrel 307.

[0055] The soil to be processed is poured into the feeding box 103. After the conical spiral column 105 rotates, the crushing teeth 111 provided on the spiral outer surface of the conical spiral column 105 can be used to crush and transport the soil entering the conical barrel 104.

[0056] The soil particles initially crushed by the conical spiral column 105 can enter the feeding box 107 and then fall downward from the feeding hole 109 into the inner groove of the vibrating barrel 307.

[0057] A rotary sleeve 201 is fixedly installed at the middle of the bottom end of the main barrel body 102, and a hollow shaft 203 is fixedly installed at the middle of the bottom end of the reaction barrel 202, and the hollow shaft 203 is rotatably connected to the rotary sleeve 201;

[0058] The central bevel gear 204 is inserted and fixed to the hollow shaft 203. A servo motor 205 is fixedly installed on the inner cavity bottom surface of the main barrel body 102. The driving bevel gear 206 is inserted and fixed in the rotating shaft of the servo motor 205 and meshes with the central bevel gear 204, so as to form a separate rotating motion of the reaction barrel 202 itself.

[0059] The specific structures of the vibrating material scattering assembly 3 and the raking member 4 are as Figure 6 , Figure 7 , Figure 8 and Figure 9 shown. The rotating motor 302 is fixedly installed inside the chassis 101. The top middle part of the main barrel body 102 is fixedly installed with a main shaft top seat 303. The top end of the main rotating shaft 301 is rotatably connected to the main shaft top seat 303, and the bottom end passes through the hollow shaft 203 and is drivingly connected to the rotating motor 302;

[0060] A rotating drive bevel gear 310 is inserted and fixed in the rotating shaft of the rotating motor 302. A rotating bevel gear 311 is inserted and fixed at the bottom end of the main rotating shaft 301. The rotating drive bevel gear 310 meshes with the rotating bevel gear 311, so as to form a rotating motion of the main rotating shaft 301 and the hexagonal column 304 fixed to the main rotating shaft 301;

[0061] The top connecting bevel gear 312 meshes on one side of the feeding bevel gear 110 and is fixedly connected to the upper end of the main rotating shaft 301, so as to form a synchronous rotating motion of the main rotating shaft 301 and the conical spiral column 105;

[0062] The hexagonal column 304 is sleeved and fixed on the upper end of the main rotating shaft 301. An inner sliding frame 306 is fixedly connected to the middle part inside the vibrating material cylinder 307. The inner sliding frame 306 is slidably connected to the hexagonal column 304. Side sleeves 305 are fixedly connected to both the upper and lower ends of the hexagonal column 304. A vibration connecting spring 313 is sleeved and installed in the hexagonal column 304. One side of the vibration connecting spring 313 is clamped to the bottom end of the inner sliding frame 306, and the other side is clamped to a group of side sleeves 305 at the bottom end. The vibration connecting spring 313 can provide an elastic supporting force for the structure composed of the inner sliding frame 306 and the vibrating material cylinder 307 to slide upward along the hexagonal column 304;

[0063] Sliding wheel seats 314 are arranged and fixedly installed in the side wall of the main barrel body 102. The shaft ends of the sliding wheels 309 on the same side are rotatably connected to the sliding wheel seats 314, so as to form a state where the sliding wheels 309 can rotate freely. When the vibrating material cylinder 307 elastically slides upward along the curved circumferential slideway 308, and in cooperation with the rotating motion of the vibrating material cylinder 307 itself, the top end of the curved circumferential slideway 308 can form a rolling contact and cooperation with the sliding wheels 309;

[0064] The top connecting arm 401 is fixedly connected horizontally to the top end of the inner side wall of the main barrel body 102. The top end of the rake claw 405 is fixedly connected to the sliding seat 403. A pair of sliding columns 402 are fixedly connected vertically in the top connecting arm 401. The sliding seat 403 is slidably connected to the sliding columns 402. The bottom of the sliding column 402 is fixedly connected to a sliding column bottom connecting plate 404, and the installation positions of the sliding column bottom connecting plate 404 and the sliding column 402 do not interfere with the reciprocating up and down movement of the vibrating material cylinder 307;

[0065] A follower compression spring 406 is sleeved and installed in each group of sliding columns 402. One side of the follower compression spring 406 is clamped to the sliding seat 403, and the other side is clamped to the top connecting arm 401. It can make the bottom end of the rake claw 405 always contact the inner groove surface of the vibrating material cylinder 307 under the elastic supporting force of the follower compression spring 406 within the reciprocating up and down movement range of the vibrating material cylinder 307;

[0066] And the position where the bottom end of the rake claw 405 contacts the inner groove surface of the vibrating material cylinder 307 is a cylindrical structure, which can form a relatively smooth movement of the bottom end of the rake claw 405 relative to the inner groove surface of the vibrating material cylinder 307.

[0067] The specific structures of the chemical agent spraying assembly 5 and the lifting member 6 are as Figure 10 、 Figure 11 and Figure 12 shown. The chemical agent tank 501 and the plunger pump 502 are both fixedly installed on the chassis 101. Different branch pipes of the Y-shaped fixed pipe 505 are fixedly connected to the side wall of the main barrel body 102, and a through hole for passing the main rotating shaft 301 is provided in the middle of the Y-shaped fixed pipe 505;

[0068] The bottom end of each group of spraying pipes 503 is arranged and connected with a spray head 504. The spray head 504 passes through the pipe wall of the Y-shaped fixed pipe 505 and extends below the Y-shaped fixed pipe 505. The inlets of each group of spraying pipes 503 extend from the ends of the branch pipes of the Y-shaped fixed pipe 505 and are connected to the outlet of the plunger pump 502 through a hose. The inlet of the plunger pump 502 is connected to the chemical agent tank 501 through a hose;

[0069] The plunger pump 502 can extract the chemical agent in the chemical agent tank 501, enter each group of spraying pipes 503, and spray downward through the arranged and distributed spray heads 504;

[0070] A lifting sliding seat 601 is installed and fixed in each branch pipe of the Y-shaped fixed pipe 505, and the lifting sliding seat 601 does not affect the spraying pipe 503. The top end of the bottom connecting seat 602 is fixedly connected to the inner sliding frame 306. The top connecting rotating seat 603 is rotatably connected to the main body of the bottom connecting seat 602. The lifting sliding columns 604 are arranged and fixedly connected to the bottom end of the top connecting rotating seat 603. The lifting sliding columns 604 on the same side are slidably connected to the lifting sliding seat 601. The lifting claw 605 is fixedly connected to the bottom end of the lifting sliding column 604;

[0071] Since the top connecting rotary seat 603 is freely rotatably connected to the bottom connecting seat 602, and the lifting slide 604 fixed to the top connecting rotary seat 603 is slidably connected to the lifting slide 601, when the vibration barrel 307 moves back and forth up and down in a rotating state, it can drive the structure composed of the top connecting rotary seat 603, the lifting slide 604 and the lifting claw 605 to move guided by the sliding fit formed by the lifting slide 604 and the lifting slide 601.

[0072] The specific structure of the discharge opening and closing component 7 that can realize the discharge of the soil particles in the reaction barrel 202 after the treatment by the agent and the discharge component 8 that cooperates with the opening of the discharge hole 701 to realize the automatic discharge is as follows: Figure 13 , Figure 14 , Figure 15 and Figure 16 As shown, the bottom of the reaction barrel 202 is an inclined structure, the discharge hole 701 is opened at the oblique lower end of the bottom of the reaction barrel 202, a fixed shaft 702 is fixed to the outer bottom of the rotary sleeve 201, one end of the discharge rotary plate 703 is rotatably connected to the fixed shaft 702, and the bottom of the discharge rotary plate 703 is fixedly connected with an opening gear 708 and an outer fixed sleeve 704 in sequence with the fixed shaft 702 as the center, and a coil spring 705 is installed in the inner ring of the outer fixed sleeve 704, and one end of the coil spring 705 is clamped with the fixed shaft 702, and the other end is clamped with the outer fixed sleeve 704;

[0073] The other end of the discharge rotary plate 703 is fixedly connected with a positioning arm 706, and the positioning block 707 is fixedly connected to the outer bottom of the reaction barrel 202. The coil spring 705 can form a supporting elastic force for the discharge rotary plate 703 to rotate relative to the fixed shaft 702, so that when there is no external force, the discharge rotary plate 703 will rotate to a position to cover the discharge hole 701, and the positioning arm 706 just abuts against the positioning block 707, so that the reaction barrel 202 can safely process soil particles;

[0074] The push slide 709 is fixedly installed on the lower end of the side wall of the main barrel body 102, and the push rack 710 is slidably connected to the push slide 709. A side rod 711 is fixedly connected to one side of the push slide 709, and a travel switch 712 is fixedly installed in pairs at the top of the side rod 711. A touch block 713 is fixedly installed at the top of the push rack 710. A push motor 714 is fixedly installed on one side of the base frame 101. A push gear 715 is inserted and fixed in the rotating shaft of the push motor 714, and the push gear 715 is meshed with the push rack 710, which can drive the push rack 710 to form a sliding action in the push slide 709, and the touch of the two sets of travel switches 712 by the touch block 713 can control the moving stroke of the push rack 710, so that when the reaction barrel 202 is in a state of processing soil particles, the push rack 710 moves to a position where it does not contact the opening gear 708 and does not interfere with the rotation of the reaction barrel 202;

[0075] Moreover, the reaction barrel 202 itself can achieve fixed-point stay relative to the rotational position of the swivel sleeve 201. There are various methods to control the fixed-point rotational stay of the reaction barrel 202, which can be achieved through the servo driver connected to the servo motor 205, or by installing a touch switch between the reaction barrel 202 and the main barrel body 102. This is the prior art and will not be elaborated further.

[0076] The outer wall of the discharge hopper 801 is fixedly connected to the bottom main body of the main barrel body 102. The discharge auger 802 is rotatably connected to the inner lower end of the discharge hopper 801. Side swivel seats 803 are fixedly installed at both ends of the lower side wall of the discharge hopper 801. The two ends of the rotating shaft of the discharge auger 802 are respectively rotatably connected to the side swivel seats 803 at different positions. The bottom end of the main rotating shaft 301 is inserted and fixed with a discharge drive bevel gear 805. One side of the discharge drive bevel gear 805 is engaged with a discharge bevel gear 804. The discharge bevel gear 804 is inserted and fixed to the outer end of the rotating shaft of the discharge auger 802.

[0077] After the soil particles in the reaction barrel 202 are reacted and processed, in cooperation with the fixed-point rotational stay of the reaction barrel 202 itself, the reaction barrel 202 is rotated to a position where the discharge hole 701 is directly opposite to the top opening of the discharge hopper 801. By touching the travel switch 712 with the touch block 713, the push rack 710 is pushed inward to a position where it meshes with the opening gear 708. Through the cooperation formed by the push rack 710 and the opening gear 708, after overcoming the supporting elastic force of the coil spring 705, the discharge rotary plate 703 is rotated to the position of opening the discharge hole 701.

[0078] The processed soil particles in the reaction barrel 202 fall downward from the discharge hole 701 into the discharge hopper 801. During the rotation of the main rotating shaft 301, on the one hand, it can drive the lifting claws 605 to form a reciprocating lifting operation in the reaction barrel 202 through the transmission mechanism, preventing the processed soil particles from accumulating in the reaction barrel 202. On the other hand, it can drive the rotation of the discharge auger 802 to form an automatic discharging operation of the soil particles entering the inside of the discharge hopper 801.

[0079] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A purification device for treating heavy metal pollution in soil, comprising a treatment frame assembly (1) and an inner reaction barrel assembly (2), characterized in that: It further includes a vibrating material spreading assembly (3), a raking member (4), a medicament spraying assembly (5) and a lifting member (6); The treatment frame assembly (1) includes a main barrel body (102) and crushing teeth (111), the inner reaction barrel assembly (2) includes a reaction barrel (202), the vibrating material spreading assembly (3) includes a vibrating material cylinder (307), a curved circumferential slideway (308) and sliding wheels (309), the raking member (4) includes raking claws (405), the medicament spraying assembly (5) includes a spraying pipe (503), and the lifting member (6) includes lifting claws (605); A conical spiral column (105) is rotatably connected to the top wall on one side of the main barrel body (102), and crushing teeth (111) are arranged on the outer surface of the conical spiral column (105). The reaction barrel (202) is rotatably connected to the inner bottom end of the main barrel body (102). A hexagonal column (304) is rotatably connected to the middle of the upper inner end of the main barrel body (102). The middle part of the inner part of the vibrating material cylinder (307) elastically slides upward and is in sliding connection with the hexagonal column (304). The curved circumferential slideway (308) is fixedly connected to the outer surface of the vibrating material cylinder (307). The bottom surfaces of the sliding wheels (309) rotatably connected to the inner wall of the main barrel body (102) are all in rolling connection with the top surface of the curved circumferential slideway (308). The top end of the curved circumferential slideway (308) is in transmission connection with the top end of the conical spiral column (105). The raking claws (405) elastically slide downward and are in sliding connection with the upper inner part of the main barrel body (102). A Y-shaped fixed pipe (505) is fixedly connected to the middle part inside the main barrel body (102). The spraying pipe (503) is installed in the branch pipe of the Y-shaped fixed pipe (505). A top connection rotary seat (603) is rotatably connected to the outer bottom of the vibrating material cylinder (307). The top ends of the arranged and distributed lifting claws (605) are respectively in sliding connection with the Y-shaped fixed pipe (505) and are all fixedly connected to the top connection rotary seat (603).

2. The purification device for treating heavy metal pollution in soil according to claim 1, wherein: The treatment frame assembly (1) further includes a bottom frame (101), a feeding box (103) and a feeding bevel gear (110). The main barrel body (102) is fixedly installed on one side of the top end of the bottom frame (101). The feeding box (103) is fixedly installed on the other side of the top end of the bottom frame (101). A conical material cylinder (104) is connected between the side wall of the main barrel body (102) and the side wall of the feeding box (103). The conical spiral column (105) is rotatably connected inside the conical material cylinder (104). A bottom rotary seat (106) is fixedly installed on the inner cavity bottom surface of the feeding box (103). The bottom end of the rotating shaft of the conical spiral column (105) is rotatably connected to the bottom rotary seat (106). A feeding box (107) is fixedly connected to the upper end of the inner side wall of the main barrel body (102). A top rotary seat (108) is fixedly installed at the top end of the feeding box (107). The upper end of the rotating shaft of the conical spiral column (105) is rotatably connected to the top rotary seat (108). The feeding bevel gear (110) is inserted and fixed at the top end of the rotating shaft of the conical spiral column (105). A feeding hole (109) is connected to the bottom of the feeding box (107).

3. The purification device for treating heavy metal pollution in soil according to claim 2, characterized in that: The inner reaction barrel assembly (2) further comprises a central bevel gear (204) and a driving bevel gear (206); a rotary sleeve (201) is fixedly mounted at the middle of the bottom end of the main barrel body (102); a hollow shaft (203) is fixedly mounted at the middle of the bottom end of the reaction barrel (202); the hollow shaft (203) is rotationally connected to the rotary sleeve (201); the central bevel gear (204) is plugged and fixed to the hollow shaft (203); a servo motor (205) is fixedly mounted on the bottom surface of the inner cavity of the main barrel body (102); the driving bevel gear (206) is plugged and fixed in the rotating shaft of the servo motor (205) and meshes with the central bevel gear (204).

4. A purification device for treating heavy metal pollution in soil according to claim 3, characterized in that: The vibrating bulk material assembly (3) further comprises a main rotating shaft (301), a rotating motor (302), a top connecting bevel gear (312) and a sliding wheel seat (314); the rotating motor (302) is fixedly mounted inside the base frame (101); a main shaft top seat (303) is fixedly mounted at the middle of the top end of the main barrel body (102); the top end of the main rotating shaft (301) is rotationally connected to the main shaft top seat (303); the bottom end passes through a hollow shaft (203) and is transmission-connected to the rotating motor (302); a rotating drive bevel gear (310) is inserted and fixed in the rotating shaft of the rotating motor (302); a rotating bevel gear (311) is inserted and fixed at the bottom end of the main rotating shaft (301); the rotating drive bevel gear (310) is meshed with the rotating bevel gear (311); the top connecting bevel gear (312) is meshed with the feeding wheel. The hexagonal column (304) is fixedly connected to the upper end of the main rotating shaft (301), and the inner middle part of the vibration barrel (307) is fixedly connected to the inner slide (306), the inner slide (306) is slidably connected to the hexagonal column (304), and the two ends of the hexagonal column (304) are fixedly connected to the side sleeve (305). A vibration connecting spring (313) is sleeved and installed in the hexagonal column (304), one side of the vibration connecting spring (313) is clamped to the bottom end of the inner slide (306), and the other side is clamped to a group of side sleeves (305) at the bottom end. The sliding wheel seat (314) is arranged and installed and fixed in the side wall of the main barrel body (102), and the shaft end of the sliding wheel (309) on the same side is rotatably connected to the sliding wheel seat (314).

5. A purification device for treating heavy metal pollution in soil according to claim 1, 2, 3 or 4, characterized in that: The raking and spreading component (4) further comprises a top connecting arm (401) and a sliding seat (403), wherein the top connecting arm (401) is fixedly connected to the top end of the inner wall of the main barrel body (102), the top end of the raking claw (405) is fixedly connected to the sliding seat (403), the top connecting arm (401) is vertically fixedly connected to a pair of sliding posts (402), the sliding seat (403) is slidably connected to the sliding posts (402), the bottom of the sliding posts (402) is fixedly connected to a sliding post bottom connecting plate (404), and a follower compression spring (406) is sleeved and installed in each group of sliding posts (402), one side of the follower compression spring (406) is clamped to the sliding seat (403), and the other side is clamped to the top connecting arm (401).

6. A purification device for treating heavy metal pollution in soil according to claim 2, 3 or 4, characterized in that: The medicine spraying assembly (5) further comprises a medicine box (501) and a plunger pump (502). The medicine box (501) and the plunger pump (502) are fixedly mounted on the base frame (101). Different branches of the Y-shaped fixed pipe (505) are fixedly connected to the side wall of the main barrel (102). The bottom end of each group of spraying pipes (503) is arranged and connected with a spray head (504). The spray head (504) is fixed on the pipe wall of the Y-shaped fixed pipe (505). The inlet of each group of spraying pipes (503) extends from the end of the branch of the Y-shaped fixed pipe (505) and is connected to the outlet of the plunger pump (502) through a hose. The inlet of the plunger pump (502) is connected to the medicine box (501) through the hose.

7. A purification device for treating heavy metal pollution in soil according to claim 4, characterized in that: The lifting component (6) also includes a bottom connecting seat (602) and a lifting slide (604). A lifting slide (601) is fixedly installed in each group of branch pipes of the Y-shaped fixed pipe (505). The top end of the bottom connecting seat (602) is fixedly connected to the inner slide (306), the top connecting rotary seat (603) is rotatably connected to the main body of the bottom connecting seat (602), the lifting slide (604) is arranged and fixedly connected to the bottom end of the top connecting rotary seat (603), the lifting slide (604) on the same side is slidably connected to the lifting slide (601), and the lifting claw (605) is fixedly connected to the bottom end of the lifting slide (604).

8. A purification device for treating heavy metal pollution in soil according to claim 2, 3, 4 or 7, characterized in that: A material discharge opening and closing assembly (7) is also installed between the bottom of the reaction barrel (202) and the main barrel body (102). The material discharge opening and closing assembly (7) comprises a material discharge hole (701), a material discharge rotary plate (703), a coil spring (705), a positioning block (707), a push slide seat (709), a push rack (710) and a side rod (711). The material discharge hole (701) is opened at the oblique lower end of the bottom of the reaction barrel (202). A fixed shaft (702) is fixed to the outer bottom of the rotary sleeve (201). One end of the material discharge rotary plate (703) is rotatably connected to the fixed shaft (702). The bottom of the material discharge rotary plate (703) is fixedly connected to an opening gear (708) and an outer fixed sleeve (704) in sequence. The coil spring (705) is installed in the inner ring of the outer fixed sleeve (704), and one end of the coil spring (705) is clamped to the fixed shaft (702), and the other end is clamped to the fixed shaft (702). The outer fixed sleeve (704) is fixed, and the other end of the material discharge rotary plate (703) is fixedly connected with a positioning arm (706), and the positioning block (707) is fixedly connected to the outer bottom of the reaction barrel (202). The push slide (709) is fixedly installed at the lower end of the side wall of the main barrel body (102), and the push rack (710) is slidably connected with the push slide (709). One side of the push slide (709) is fixedly connected with a side rod (711), and the top of the side rod (711) is fixedly installed with a travel switch (712) in pairs. The top of the push rack (710) is fixedly installed with a touch block (713), and one side of the bottom frame (101) is fixedly installed with a push motor (714), and a push gear (715) is inserted and fixed in the rotating shaft of the push motor (714), and the push gear (715) is meshed with the push rack (710).

9. The purification device for treating heavy metal pollution in soil according to claim 4 or 7, characterized in that: At the bottom of the main barrel body (102), a discharging assembly (8) is further installed. The discharging assembly (8) includes a discharging hopper (801) and a discharging auger (802). The outer wall of the discharging hopper (801) is fixedly connected to the bottom end body of the main barrel body (102). The discharging auger (802) is rotatably connected to the inner lower end of the discharging hopper (801). At both ends of the lower side wall of the discharging hopper (801), side rotating seats (803) are fixedly installed. The two ends of the rotating shaft of the discharging auger (802) are respectively rotatably connected to different side rotating seats (803). At the bottom end of the main rotating shaft (301), a discharging transmission bevel gear (805) is inserted and fixed. On one side of the discharging transmission bevel gear (805), a discharging bevel gear (804) is engaged. The discharging bevel gear (804) is inserted and fixed to the outer end of the rotating shaft of the discharging auger (802).

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