CN115254939A

CN115254939A - Cadmium-contaminated soil remediation equipment

Info

Publication number: CN115254939A
Application number: CN202210944050.XA
Authority: CN
Inventors: 秦培鑫; 罗阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-11-01

Abstract

The invention relates to the technical field of soil remediation, in particular to cadmium-polluted soil remediation equipment, which comprises a reaction kettle, a first feeding pipe and a second feeding pipe, wherein the first feeding pipe and the second feeding pipe are fixedly connected to two sides of the upper end surface of the reaction kettle; the lower end surface of the reaction kettle is annularly fixed with a supporting leg, and the middle part of the reaction kettle is fixedly connected with a discharge pipe; the upper end face middle part fixedly connected with motor of reation kettle, reation kettle's inside from last broken mechanism, reaction mechanism and the screening mechanism that down distributes in proper order can realize a series of processes to soil breakage, reaction, screening. According to the invention, by designing the crushing mechanism, the reaction mechanism and the screening mechanism, the stirring rod is driven by a motor to be matched to fully crush the large caking soil entering the reaction kettle, then the soil and the reaction microspheres are fully mixed and contact-reacted, and the treated soil is further screened and filtered, so that better soil treatment and remediation are realized, the soil remediation efficiency and the treatment effect are improved, and the residual quantity of heavy metal cadmium is reduced.

Description

Cadmium-contaminated soil remediation equipment

Technical Field

The invention relates to the technical field of soil remediation, in particular to cadmium-polluted soil remediation equipment.

Background

Cadmium is an unnecessary element for human bodies and has been listed as one of hazardous chemical substances in global significance by the environmental planning agency of the united nations; cadmium enters soil, not only can cause soil dysfunction and soil quality reduction and influence plant growth, but also can be absorbed and enriched by plants and transferred into a food chain to harm human life and health. The national soil pollution survey bulletin in 2014 shows that the cadmium pollution condition of the soil in China is not optimistic. In 2016, 5 months, "action plan for soil pollution control" (ten items of soil), clearly indicates "to organize governing and remediation preferentially in areas concentrated in polluted cultivated lands".

Therefore, the prevention and control of the heavy metal pollution of farmland soil become a great strategic demand of China, and the research focus of scientists in recent years on how to repair the heavy metal polluted soil, including repairing the cadmium polluted soil.

The method adopts the high-enrichment heavy metal plants to extract the heavy metals in the soil, namely, special high-absorption heavy metal plants are planted in the heavy metal contaminated soil, and the heavy metals in the soil are extracted and separated by harvesting mature plants, so that the content of the heavy metal elements in the soil is reduced, and the method is an effective heavy metal contaminated soil remediation technology.

Because the growth cycles of the plants are long, the time consumption is long because the plants are used for extracting and separating heavy metal ions in the soil; when the plant is removed, root system residue is generated, the content of the residue is high, and the repair is not thorough; the adsorption efficiency is low, and the defects of high requirement on the land capability, sensitivity to pollution concentration and the like exist.

Therefore, the cadmium-polluted soil remediation equipment is provided.

Disclosure of Invention

The invention aims to provide cadmium-polluted soil remediation equipment to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the cadmium contaminated soil remediation equipment comprises a reaction kettle, a first feeding pipe and a second feeding pipe, wherein the first feeding pipe and the second feeding pipe are fixedly connected to two sides of the upper end surface of the reaction kettle;

the lower end surface of the reaction kettle is annularly fixed with a supporting leg, and the middle part of the reaction kettle is fixedly connected with a discharge pipe;

the middle part of the upper end surface of the reaction kettle is fixedly connected with a motor;

the inside from last down distributes in proper order of reation kettle has crushing mechanism, reaction mechanism and screening mechanism, can realize breaking, reacting, screening a series of processes to soil.

Preferably, the crushing mechanism comprises a crushing plate, a crushing cavity, a first filter plate and crushing teeth; a stirring rod is vertically arranged at the center inside the reaction kettle, and the upper end of the stirring rod is fixed with an output shaft of the motor;

the inside fixedly connected with toper filter one that is close to the upper end of reation kettle, and the toper filter forms broken chamber between one and the inside upper end of reation kettle, the puddler runs through a filter plate center and is connected rather than rotating through the bearing, and the puddler surface that is located broken chamber is from last three broken boards of group that down distributes in proper order equidistance, and a set of broken board quantity is three to the annular distribution is fixed with broken tooth at the puddler surface, the adjacent surface equidistance of upper and lower broken board, the broken board passes through sliding assembly with the reation kettle inner wall and is connected, and the broken board comprises high tenacity metal.

Preferably, the sliding assembly comprises annular grooves, balls and connecting blocks, annular grooves are formed in the inner wall of the reaction kettle and correspond to the three groups of crushing plates, and the annular grooves are distributed in a wavy structure;

wherein the high point and the low point adjacent design between the adjacent annular, the inside sliding connection of annular has the connecting block, and the connecting block is fixed with the breaker.

Preferably, the connecting block and the longitudinal section of the ring groove are in a triangular structure, the limiting cannot be separated, and the connecting block and three adjacent surfaces of the inner surface of the ring groove are connected with balls in an embedded mode.

Preferably, the reaction mechanism comprises stirring blades, a reaction chamber, a second filter plate and a shifting sheet, the second filter plate is fixedly connected to the middle position inside the reaction kettle, the connecting structure of the stirring rod and the second filter plate is the same as that of the first filter plate, the reaction chamber is formed between the first filter plate and the second filter plate, and the stirring blades are distributed on the outer surface of the stirring rod in the reaction chamber at equal intervals;

the outer surface of the reaction kettle is communicated with three openings, the three openings are located on the upper sides of the two filter plates and correspond to the two filter plates in an inclination angle mode, the upper end faces of the two filter plates are provided with slope angle matching shifting pieces, and one ends of the shifting pieces are fixed with the stirring rod.

Preferably, three collecting boxes are annularly distributed on the outer surface of the reaction kettle at positions corresponding to the reaction cavity, openings correspond to collecting notches formed in the side surfaces of the collecting boxes, and magnets are connected with the edges of the notches in an embedded mode;

a sliding block and a sliding chute are arranged between the collection box and the reaction kettle, the outer surface of the reaction kettle is provided with the sliding chute, the sliding block is fixed with the collection box, and the sliding block is positioned in the sliding chute and is in sliding connection;

adjacent fixedly connected with arc solid fixed ring between the collecting box, and solid fixed ring is connected with the collecting box through dismantling the connected mode.

Preferably, the screening mechanism comprises a screening chamber, a third filter plate and a guide assembly, the third filter plate is horizontally arranged in the reaction kettle at a position close to the lower end, the third filter plate and the second filter plate form the screening chamber, the lower end of the stirring rod penetrates through the center of the third filter plate and extends to the lower side of the third filter plate, the bottom of the stirring rod is connected with the third filter plate through the drive assembly, and the three edges of the filter plate are connected with the inner wall of the reaction kettle through the guide assembly;

the stirring rod is driven to rotate by the motor, and soil subjected to reaction filtering is further screened under the matching of the driving assembly and the guide assembly.

Preferably, the drive assembly includes cam, connecting rod, gyro wheel, the sliding tray has transversely been seted up to the up end central point of three filter, and the sliding tray longitudinal section is cross structural design, the lower extreme of puddler extends to the downside of three filter through the sliding tray, the inside sliding connection of sliding tray has the bearing, and the bearing cup joints the surface at the puddler, the lower extreme fixedly connected with cam of puddler, and one side level of cam rotates and is connected with the gyro wheel, the up end center of gyro wheel rotates and is connected with the connecting rod, and the upper end and the filter of connecting rod are three fixed.

Preferably, the guide assembly comprises a rubber pad, a guide rod, a guide groove, a spring and a frame;

the diameter of the filter plate III is smaller than the inner diameter of the reaction kettle;

the outer fixedly connected with frame of following of filter three, the guide way has been seted up with the sliding tray correspondence direction symmetry in the both sides of frame, the inside swing joint of guide way has the guide arm, be connected with the spring between guide arm and the guide way, and the other end and the reation kettle inner wall of guide arm are fixed, the length of guide arm is greater than guide way length, the upper and lower both sides of guide arm all are provided with the rubber pad, and the rubber end is the annular distribution one end and splices with the frame, and the other end splices with the reation kettle inner wall, the downside splices sealed rubber pad on the sliding tray.

Preferably, the first filter plate, the second filter plate and the third filter plate are designed to be stainless steel mesh structures, and the filter aperture is gradually decreased from top to bottom.

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

according to the invention, by designing the crushing mechanism, the reaction mechanism and the screening mechanism, the stirring rod is driven by a motor to be matched to fully crush the large caking soil entering the reaction kettle, then the soil and the reaction microspheres are fully mixed and contact-reacted, and the treated soil is further screened and filtered, so that better soil treatment and remediation are realized, the soil remediation efficiency and the treatment effect are improved, and the residual quantity of heavy metal cadmium is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is a combination view of a ring groove and a reaction vessel according to the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 2 according to the present invention;

FIG. 5 is a combination view of the breaker plate and breaker teeth of the present invention;

FIG. 6 is an enlarged view of the invention at B of FIG. 2;

FIG. 7 is a cross-sectional view taken at C-C of FIG. 2 in accordance with the present invention;

fig. 8 is a top view of the filter plate of the present invention.

Description of reference numerals:

1. a reaction kettle; 11. a feeding pipe I; 12. a feeding pipe II; 13. supporting legs; 14. a discharge pipe; 2. a motor; 21. a stirring rod;

3. a collection box; 31. a collection slot; 32. a chute; 321. a slider; 33. a fixing ring;

4. a crushing mechanism; 41. a breaker plate; 42. a crushing chamber; 43. a first filter plate; 44. a ring groove; 45. a ball bearing; 46. connecting blocks; 47. crushing teeth;

5. a reaction mechanism; 51. a stirring blade; 52. a reaction chamber; 53. a second filter plate; 54. a shifting sheet;

6. a screening mechanism; 61. a screening chamber; 62. a third filter plate; 63. a guide assembly; 64. a cam; 65. a connecting rod; 66. A roller; 67. a sliding groove;

631. a rubber pad; 632. a guide bar; 633. a guide groove; 634. a spring; 635. and (6) a frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

the cadmium contaminated soil remediation equipment comprises a reaction kettle 1, a first feeding pipe 11 and a second feeding pipe 12, wherein the first feeding pipe 11 and the second feeding pipe 12 are fixedly connected to two sides of the upper end surface of the reaction kettle 1;

the lower end surface of the reaction kettle 1 is annularly fixed with a supporting leg 13, and the middle part is fixedly connected with a discharging pipe 14;

the middle part of the upper end surface of the reaction kettle 1 is fixedly connected with a motor 2;

the inside from last down distributes in proper order of reation kettle 1 has crushing mechanism 4, reaction mechanism 5 and screening mechanism 6, can realize to soil crushing, reaction, screening a series of processes.

By adopting the technical scheme, the crushing mechanism 4, the reaction mechanism 5 and the screening mechanism 6 are designed, the stirring rod 21 is driven by the motor 2 to fully crush the large caked soil entering the reaction kettle 1, then the soil and the reaction microspheres are fully mixed and contact to react, and the treated soil is further screened and filtered, so that the better soil treatment and remediation are realized, the soil remediation efficiency and the treatment effect are improved, and the residual quantity of heavy metal cadmium is reduced.

As an embodiment of the present invention, as shown in fig. 2 and 5, the crushing mechanism 4 includes a crushing plate 41, a crushing chamber 42, a first filter plate 43, crushing teeth 47; the reaction kettle 1 is characterized in that a stirring rod 21 is vertically arranged at the center inside the reaction kettle 1, the upper end of the stirring rod 21 is fixed with an output shaft of a motor 2, a first conical filter plate 43 is fixedly connected to a position, close to the upper end, inside the reaction kettle 1, a crushing cavity 42 is formed between the first conical filter plate 43 and the upper end inside the reaction kettle 1, the stirring rod 21 penetrates through the center of the first filter plate 43 and is rotatably connected with the first filter plate through a bearing, three groups of crushing plates 41 are sequentially distributed on the outer surface of the stirring rod 21, located in the crushing cavity 42, from top to bottom, at equal intervals, one group of crushing plates 41 is three and is annularly distributed on the outer surface of the stirring rod 21, crushing teeth 47 are distributed and fixed on adjacent surfaces of the upper crushing plate 41 and the lower crushing plate at equal intervals, the crushing plates 41 are connected with the inner wall of the reaction kettle 1 through a sliding assembly, the crushing plates 41 are made of high-toughness metal, the sliding assembly comprises annular grooves 44, balls 45 and a connecting block 46, annular grooves 44 are formed in corresponding positions of the inner wall of the reaction kettle 1, and the annular grooves 44 are distributed in a wavy structure; wherein the adjacent design of high point and low point between adjacent annular 44, the inside sliding connection of annular 44 has connecting block 46, and connecting block 46 is fixed with crushing plate 41, connecting block 46 is spacing indelible for the triangle-shaped structure with the longitudinal section of annular 44, connecting block 46 and the equal embedded ball 45 that is connected with of three adjacent faces of annular 44 internal surface.

By adopting the technical scheme, firstly, a user discharges reaction microspheres into an inner cavity of a reaction kettle 1 through a feeding pipe II 12, cadmium-polluted soil is discharged into the reaction kettle 1 through a feeding pipe I11, the reaction microspheres are calcium alginate sodium polyacrylate microspheres, the calcium alginate sodium polyacrylate microspheres and the cadmium-polluted soil are stirred according to equal proportion, the calcium alginate sodium polyacrylate microspheres and the cadmium-polluted soil initially enter a crushing cavity 42, a motor 2 is synchronously started, the motor 2 drives a stirring rod 21 to rotate, the crushing plate 41 positioned in the crushing cavity 42 is further driven to rotate, at the moment, a connecting block 46 at one end of the crushing plate 41 slides and moves in an annular groove 44, the friction resistance between the connecting block 46 and the annular groove 44 can be reduced through the design of a ball 45, so that the crushing plate 41 is smooth in the moving process, and under the action of the annular groove 44 with a wavy structure, the crushing plate 41 made of high-toughness metal materials is oppositely bent through the wavy annular groove 44 to extrude large agglomerated soil mixed in the crushing plate 41 and further crush the large agglomerated soil by using the crushing teeth 47, then the crushing plate 41 is rotated to move and is relatively bent to repeatedly crush the soil in the crushing plate, wherein large agglomerated soil possibly remains near the stirring rod 21, and the crushing plate 41 is bent to extrude a crushing blind area, so that the first filter plate 43 is designed to be conical, the soil flows downwards under the stirring effect and flows outwards under the slope angle of the first filter plate 43, and further the first filter plate 43 is matched with the bending state of the lowermost crushing plate 41 to extrude the crushing plate for further crushing, and the gap between the adjacent crushing plates 41 in the bending extrusion state is larger than the diameter of the reaction microspheres, so that the extrusion damage to the reaction microspheres is avoided, and the aperture of the first filter plate 43 is larger than the diameter of the reaction microspheres.

As an embodiment of the present invention, as shown in fig. 1 and fig. 2, the reaction mechanism 5 includes a stirring blade 51, a reaction chamber 52, a second filter plate 53, and a shifting sheet 54, the second filter plate 53 is fixedly connected to the middle position inside the reaction kettle 1, the connection structure of the stirring rod 21 and the second filter plate 53 is the same as that of the first filter plate 43, the reaction chamber 52 is formed between the first filter plate 43 and the second filter plate 53, and the stirring blades 51 are annularly and equidistantly distributed on the outer surface of the stirring rod 21 located inside the reaction chamber 52; the outer surface of the reaction kettle 1 is provided with three openings in a penetrating way, the three openings are positioned on the upper side of the second filter plate 53 and correspond to the inclination angle of the second filter plate 53, the upper end face of the second filter plate 53 is provided with a shifting piece 54 matched with the slope angle, one end of the shifting piece 54 is fixed with the stirring rod 21, three collecting boxes 3 are annularly distributed on the outer surface of the reaction kettle 1 at positions corresponding to the reaction cavity 52, the openings correspond to collecting notches 31 formed in the side faces of the collecting boxes 3, and the edges of the notches of the openings and the collecting boxes are connected with magnets in an embedded way; a sliding block 321 and a sliding groove 32 are arranged between the collection box 3 and the reaction kettle 1, the sliding groove 32 is formed in the outer surface of the reaction kettle 1, the sliding block 321 is fixed with the collection box 3, and the sliding block 321 is positioned in the sliding groove 32 and is in sliding connection; adjacent fixedly connected with arc fixed ring 33 between the collecting box 3, and fixed ring 33 is connected with collecting box 3 through dismantling the connected mode.

Through adopting above-mentioned technical scheme, based on above-mentioned embodiment, soil gets into inside reaction chamber 52 through filter two 53 after the crushing and preliminary stirring reaction of broken mechanism 4, and intensive reaction mixes under stirring vane 51's stirring effect, because filter two 53 diameters are less than the reaction microballon, consequently, after waiting to react, soil sees through filter two 53 and flows downwards, and the reaction microballon stops at filter two 53 upside, user's accessible arc solid fixed ring 33 cooperation slider 321 and spout 32 rotate collecting box 3 this moment, it corresponds with the notch magnetic force adsorption of reation kettle 1 surface to collect the magnet of notch 31 department through collecting box 3, here notch coincidence, the reaction microballon then gets into collecting box 3 through notch and collection notch 31 inside and accomplishes the collection to the reaction microballon, it is worth noting, filter two 53 is the toper structural design equally, make the reaction microballon flow to the outside under its domatic angle effect and further cooperate the plectrum 54 of being connected with puddler 21 to accomplish the collection work of reaction microballon, after collecting and accomplishing, the same slider 321 and spout 32 sliding connection of spout 32, it makes the notch, close again, because the dislocation reaction microballon is taken out after the collecting box 3 can be dismantled again.

As an embodiment of the present invention, as shown in fig. 2 and 6 to 8, the screening mechanism 6 includes a screening chamber 61, a third filter plate 62, and a guide assembly 63, the third filter plate 62 is horizontally disposed inside the reaction vessel 1 near the lower end, the screening chamber 61 is formed between the third filter plate 62 and the second filter plate 53, the lower end of the stirring rod 21 penetrates through the center of the third filter plate 62 and extends to the lower side of the third filter plate 62, the bottom of the stirring rod 21 is connected with the third filter plate 62 through a driving assembly, and the edge of the third filter plate 62 is connected with the inner wall of the reaction vessel 1 through the guide assembly 63; the stirring rod 21 is driven to rotate by the motor 2, the soil subjected to reaction filtering is further screened under the matching of the driving assembly and the guide assembly 63, the driving assembly comprises a cam 64, a connecting rod 65 and a roller 66, a sliding groove 67 is transversely formed in the center of the upper end face of the filter plate III 62, the longitudinal section of the sliding groove 67 is in a cross-shaped structural design, the lower end of the stirring rod 21 extends to the lower side of the filter plate III 62 through the sliding groove 67, a bearing is connected to the inside of the sliding groove 67 in a sliding manner and is sleeved on the outer surface of the stirring rod 21, the cam 64 is fixedly connected to the lower end of the stirring rod 21, the roller 66 is horizontally and rotatably connected to one side of the cam 64, the connecting rod 65 is rotatably connected to the center of the upper end face of the roller 66, the upper end of the connecting rod 65 is fixed to the filter plate III 62, and the guide assembly 63 comprises a rubber pad 631, a guide rod 632, a guide groove 633, a spring 634 and a frame 635; the diameter of the filter plate III 62 is smaller than the inner diameter of the reaction kettle 1; outer fixedly connected with frame 635 of following of filter three 62, guide groove 633 has been seted up to the both sides of frame 635 and sliding tray 67 correspondence direction symmetry, the inside swing joint of guide groove 633 has guide arm 632, be connected with spring 634 between guide arm 632 and the guide groove 633, and guide arm 632's the other end and reation kettle 1 inner wall are fixed, guide arm 632's length is greater than guide groove 633 length, guide arm 632's upper and lower both sides all are provided with rubber pad 631, and the rubber end is the splice of ring-shaped distribution one end and frame 635, and the other end splices with reation kettle 1 inner wall, the downside also splices sealed rubber pad 631 on the sliding tray 67, filter 43, filter two 53 and three 62 three of filters are the design of stainless steel network structure, and filter aperture down steadilys decrease in proper order from last.

By adopting the technical scheme, based on the above embodiment, after the reacted soil penetrates through the second filter plate 53 and enters the interior of the screening chamber 61, at this time, the cam 64 is driven by the stirring rod 21 to rotate, the cam 64 is in continuous rolling contact with the roller 66 connected with the lower side of the third filter plate 62 through the connecting rod 65, the third filter plate 62 is enabled to continuously move left and right under the shape action of the cam 64, the cam is in sliding connection with the guide rod 632 in the guide groove 633, the spring 634 is continuously extruded, the stirring rod 21 is compressed and reset, the same stirring rod 21 can also perform relative displacement in the sliding groove 67 arranged on the upper end face of the third filter plate 62, a space is provided for the left and right displacement of the third filter plate 62, screening and filtering of the soil are realized through the mode, the soil repairing effect is further increased, and it is worth noting that the design purpose of the rubber pad 631 is that the influence on the guide assembly 63 and the driving assembly caused by the soil entering a gap between the filter plate 62 and the guide assembly is avoided while the displacement shaking of the third filter plate 62 in the reaction kettle 1.

The working principle is as follows: firstly, a user discharges reaction microspheres into an inner cavity of a reaction kettle 1 through a feeding pipe II 12, cadmium-polluted soil is discharged into the reaction kettle 1 through a feeding pipe I11, the reaction microspheres are calcium alginate sodium polyacrylate microspheres, the calcium alginate sodium polyacrylate microspheres and the cadmium-polluted soil are stirred according to equal proportion and enter a crushing cavity 42 preliminarily, a motor 2 is started synchronously, the motor 2 drives a stirring rod 21 to rotate, a crushing plate 41 positioned in the crushing cavity 42 is further driven to rotate, at the moment, a connecting block 46 at one end of the crushing plate 41 slides and displaces inside an annular groove 44, the friction resistance between the connecting block 46 and the annular groove 44 can be reduced through the design of balls 45, the movement process of the crushing plate 41 is smooth, and under the action of the annular groove 44 with a wavy structure, the crushing plate 41 made of high-toughness metal materials is oppositely bent through the wavy annular groove 44 to extrude large agglomerated soil mixed in the crushing plate 41 and further crush the large agglomerated soil by using the crushing teeth 47, then the crushing plate 41 is rotated to displace and bend oppositely, so that the soil in the crushing plate is repeatedly crushed, wherein larger agglomerated soil possibly remains near the stirring rod 21, and the crushing plate 41 bends to extrude a crushing blind area, so that the first filter plate 43 is designed to be conical, the soil flows downwards under the stirring effect and flows outwards under the slope angle of the first filter plate 43, and further the first filter plate 43 is matched with the bending state of the lowermost crushing plate 41 to extrude and further crush, and the gap between the adjacent crushing plates 41 in the bending extrusion state is larger than the diameter of the reaction microspheres, so that the reaction microspheres are prevented from being extruded and damaged, the diameter of the first filter plate 43 is larger than the diameter of the reaction microspheres, and the reaction microspheres can conveniently pass through;

soil enters the reaction cavity 52 through the second filter plate 53 after being crushed and subjected to preliminary stirring reaction by the crushing mechanism 4, and is fully reacted and mixed under the stirring action of the stirring blade 51, the diameter of the second filter plate 53 is smaller than that of the reaction microspheres, therefore, after the reaction is finished, the soil flows downwards through the second filter plate 53, and the reaction microspheres stay on the upper side of the second filter plate 53, at the moment, a user can rotate the collection box 3 through the arc-shaped fixing ring 33 in cooperation with the sliding block 321 and the sliding groove 32, the magnet at the collection notch 31 of the collection box 3 corresponds to the notch magnet on the outer surface of the reaction kettle 1 in a magnetic adsorption manner, the notches are overlapped, the reaction microspheres enter the collection box 3 through the notches and the collection notch 31 to complete the collection of the reaction microspheres, and it is worth noting that the second filter plate 53 is also designed in a conical structure, so that the reaction microspheres can flow outwards under the action of the slope angle thereof and further cooperate with the stirring sheet 54 connected with the stirring rod 21 to complete the collection of the reaction microspheres, after the collection is finished, the collection box 3 is also rotated again to ensure that the notches are staggered, the notches are closed, and the next reaction microspheres can be taken out detachably connected with the collection box 3, and the collection box 3;

soil after the reaction permeates through filter two 53 and gets into inside screening chamber 61, puddler 21 drive cam 64 rotates this moment, the continuous gyro wheel 66 rolling contact who is connected through connecting rod 65 with filter three 62 downside of cam 64, make filter three 62 constantly shift about under the effect of cam 64 shape, through guide arm 632 at the inside sliding connection of guide slot 633, and constantly extrude spring 634, compress, reset, the inside relative displacement of sliding slot 67 that same puddler 21 also can be seted up at filter three 62 up end, displacement provides the space about for filter three 62, realize the screening filtration to soil through this mode, further increase soil remediation effect, it is worth noting that the design purpose of this rubber pad 631 is when not influencing filter three 62 and the inside displacement of reation kettle 1 rocks, avoid soil to get into the gap between the two and produce the influence to direction subassembly 63 and drive assembly.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. Cadmium contaminated soil remediation equipment comprises a reaction kettle (1), a first feeding pipe (11) and a second feeding pipe (12), wherein the first feeding pipe and the second feeding pipe are fixedly connected to the two sides of the upper end face of the reaction kettle (1);

the lower end surface of the reaction kettle (1) is annularly fixed with a supporting leg (13), and the middle part is fixedly connected with a discharging pipe (14);

upper end face middle part fixedly connected with motor (2) of reation kettle (1), its characterized in that:

the inside from last down of reation kettle (1) distributes in proper order and has broken mechanism (4), reaction unit (5) and screening mechanism (6), can realize a series of processes to soil breakage, reaction, screening.

2. The cadmium-contaminated soil remediation device of claim 1, wherein: the crushing mechanism (4) comprises a crushing plate (41), a crushing cavity (42), a first filter plate (43) and crushing teeth (47); a stirring rod (21) is vertically arranged at the center of the interior of the reaction kettle (1), and the upper end of the stirring rod (21) is fixed with an output shaft of the motor (2);

the inside of reation kettle (1) is close to position fixedly connected with toper filter (43) of upper end, and forms broken chamber (42) between toper filter (43) and reation kettle (1) inside upper end, puddler (21) run through filter plate (43) center and rotate rather than through the bearing and be connected, and puddler (21) surface that is located broken chamber (42) is from last down three broken boards (41) of group that distribute in proper order equidistance, and a set of broken board (41) quantity is three to the annular distribution is at puddler (21) surface, and the adjacent surface equidistance of upper and lower broken board (41) distributes and is fixed with broken tooth (47), broken board (41) pass through sliding assembly with reation kettle (1) inner wall and are connected, and broken board (41) comprise high tenacity metal.

3. The cadmium-contaminated soil remediation device of claim 2, wherein: the sliding assembly comprises ring grooves (44), balls (45) and connecting blocks (46), the ring grooves (44) are formed in the inner wall of the reaction kettle (1) and correspond to the three groups of crushing plates (41), and the ring grooves (44) are distributed in a wavy structure;

wherein the high points and the low points between the adjacent ring grooves (44) are designed adjacently, the inside of the ring grooves (44) is connected with a connecting block (46) in a sliding way, and the connecting block (46) is fixed with the crushing plate (41).

4. The cadmium-contaminated soil remediation device of claim 3, wherein: the connecting block (46) and the longitudinal section of the ring groove (44) are in a triangular structure and are limited and cannot be separated, and balls (45) are embedded into three adjacent surfaces of the inner surface of the connecting block (46) and the inner surface of the ring groove (44).

5. The cadmium-contaminated soil remediation device of claim 1, wherein: the reaction mechanism (5) comprises stirring blades (51), a reaction chamber (52), a second filter plate (53) and a shifting sheet (54), the second filter plate (53) is fixedly connected to the middle position inside the reaction kettle (1), the connection structure of the stirring rod (21) and the second filter plate (53) is the same as that of the first filter plate (43), the reaction chamber (52) is formed between the first filter plate (43) and the second filter plate (53), and the stirring blades (51) are annularly and equidistantly distributed on the outer surface of the stirring rod (21) positioned inside the reaction chamber (52);

the outer surface of reaction kettle (1) link up and has seted up three opening, and three opening is located filter two (53) upside and corresponds with filter two (53) inclination unanimously, the up end of filter two (53) is provided with domatic angle matching plectrum (54), and the one end of plectrum (54) is fixed with puddler (21).

6. The cadmium-contaminated soil remediation device of claim 5, wherein: three collecting boxes (3) are annularly distributed on the outer surface of the reaction kettle (1) at positions corresponding to the reaction cavity (52), openings of the three collecting boxes correspond to collecting notches (31) formed in the side surfaces of the collecting boxes (3), and magnets are connected with the edges of the notches in an embedded mode;

a sliding block (321) and a sliding groove (32) are arranged between the collection box (3) and the reaction kettle (1), the sliding groove (32) is formed in the outer surface of the reaction kettle (1), the sliding block (321) is fixed with the collection box (3), and the sliding block (321) is located in the sliding groove (32) and is in sliding connection;

adjacent fixedly connected with arc solid fixed ring (33) between collecting box (3), and solid fixed ring (33) are connected with collecting box (3) through dismantling the connected mode.

7. The cadmium-contaminated soil remediation device of claim 1, wherein: screening mechanism (6) are including screening chamber (61), three (62) of filter, direction subassembly (63), the inside position level that is close to the lower extreme of reation kettle (1) is provided with three (62) of filter, form screening chamber (61) between three (62) of filter and two (53) of filter, the lower extreme of puddler (21) runs through three (62) centers of filter and extends to the downside of three (62) of filter, be connected through drive assembly between the bottom of puddler (21) and three (62) of filter, three (62) edges of filter pass through direction subassembly (63) and reation kettle (1) inner wall connection.

8. The cadmium-contaminated soil remediation device of claim 7, wherein: the drive assembly includes cam (64), connecting rod (65), gyro wheel (66), sliding tray (67) have transversely been seted up to the up end central point of filter three (62), and sliding tray (67) longitudinal section is cross structural design, the lower extreme of puddler (21) extends to the downside of filter three (62) through sliding tray (67), the inside sliding connection of sliding tray (67) has the bearing, and the bearing cup joints the surface at puddler (21), the lower extreme fixedly connected with cam (64) of puddler (21), and one side level of cam (64) rotates and is connected with gyro wheel (66), the up end center of gyro wheel (66) rotates and is connected with connecting rod (65), and the upper end of connecting rod (65) is fixed with filter three (62).

9. The cadmium-contaminated soil remediation device of claim 7, wherein: the guide assembly (63) comprises a rubber pad (631), a guide rod (632), a guide groove (633), a spring (634) and a frame (635);

the diameter of the filter plate III (62) is smaller than the inner diameter of the reaction kettle (1);

outer edge fixedly connected with frame (635) of filter three (62), the both sides of frame (635) correspond the direction symmetry with sliding tray (67) and have seted up guide way (633), the inside swing joint of guide way (633) has guide arm (632), be connected with spring (634) between guide arm (632) and guide way (633), and the other end and reation kettle (1) inner wall of guide arm (632) are fixed, the length of guide arm (632) is greater than guide way (633) length, the upper and lower both sides of guide arm (632) all are provided with rubber pad (631), and the rubber end is the splice of ring-shaped distribution one end and frame (635), and the other end splices with reation kettle (1) inner wall, the downside also splices to seal up and has rubber pad (631) on sliding tray (67).

10. The cadmium-contaminated soil remediation device of claim 7, wherein: the first filter plate (43), the second filter plate (53) and the third filter plate (62) are designed to be stainless steel mesh structures, and the filter aperture is decreased gradually from top to bottom.