CN115582416A

CN115582416A - Heavy metal contaminated soil repair equipment

Info

Publication number: CN115582416A
Application number: CN202211356802.7A
Authority: CN
Inventors: 柴喜日; 陈杏
Original assignee: Jiaxing Tiancheng Environmental Protection Equipment Co ltd
Current assignee: Jiaxing Tiancheng Environmental Protection Equipment Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-01-10

Abstract

The invention belongs to the field of soil remediation, and particularly relates to heavy metal contaminated soil remediation equipment which comprises a bottom plate, wherein a collecting barrel is fixedly arranged above the bottom plate, two soil inlet bins are fixedly arranged at one end, far away from the bottom plate, of the collecting barrel, crushing rollers are rotatably arranged in the two soil inlet bins, a screen is arranged at one side, close to the bottom plate, of each group of crushing rollers, a mixing disc is fixedly arranged below the screen, a plurality of soil leakage holes are formed in the surface of the mixing disc, a rotating rod is rotatably arranged at the center position in the collecting barrel, and a plurality of stirring rods are fixedly arranged at one end, far into the collecting barrel, of the rotating rod. The farmland soil polluted by the heavy metals can be repaired by utilizing the specific medicinal powder, so that the content of the heavy metals in the soil is reduced, and the farmland needs are met.

Description

Heavy metal contaminated soil repair equipment

Technical Field

The invention belongs to the field of soil remediation, and particularly relates to heavy metal contaminated soil remediation equipment.

Background

With the development of society, soil under the feet of people is gradually polluted, wherein the most important thing is the heavy metal pollution of the soil, plants growing on the soil polluted by the heavy metal can be polluted by the heavy metal, and if crops are planted on the polluted farmland soil, the health of people can be directly influenced. Most of the heavy metal soil remediation technologies at present are used for treating large-area soil in a centralized manner, the remediation effect is not obvious enough, and the treatment time is long, so that the heavy metal soil remediation technology cannot be well applied in a large range. Most of the devices for repairing the soil collect polluted soil in a concentrated manner and then repair the polluted soil, so that the medicines for repairing the soil are wasted, and the repairing effect is not obvious.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides heavy metal contaminated soil remediation equipment which can be used for remedying the farmland soil contaminated by heavy metals by using specific medicinal powder, so that the content of the heavy metals in the soil is reduced and the farmland needs are met.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a heavy metal contaminated soil repair equipment, includes the bottom plate, the fixed collecting vessel that is provided with in top of bottom plate, the collecting vessel is kept away from the fixed two soil storehouse, two of advancing the fixed screen cloth that is provided with of one end of bottom plate, two advance the inside rotation in soil storehouse and be provided with two sets of broken rolls that can twist with the soil piece garrulous, every group broken roll is close to bottom plate one side and is provided with the screen cloth that can sift out the boulder, the fixed hybrid disc that is provided with in screen cloth below, open on the hybrid disc surface has a plurality of hourglass native holes, the inside central point of collecting vessel puts the rotation and is provided with the dwang, the inside that the collecting vessel was stretched out to dwang one end, the fixed a plurality of puddlers that are provided with of one end of the inside of collecting vessel that are deepened into to the dwang, the periphery evenly distributed of puddler along the dwang, the fixed baffle that is provided with of one end of collecting vessel inside is deepened out to the dwang, the fixed a plurality of hydraulic telescoping column is provided with first hydraulic pump.

Preferably, each crushing roller has one end extending out of the soil inlet bin, one end of each crushing roller extending out of the soil inlet bin is fixedly provided with a driven gear, each group of driven gears are in meshed transmission, one side of each soil inlet bin far away from the baffle is fixedly provided with a first driving motor, the output end of each driving motor is fixedly provided with a driving gear, and the driving gear is in meshed transmission with an adjacent driven gear; the inside of collecting vessel is stretched out to the one end of dwang, the fixed second driving motor that is provided with in one side that the collecting vessel was kept away from to the baffle, the one end fixed connection that the collecting vessel was stretched out to second driving motor's output and dwang. The large clods are crushed into small clods, so that the restoration of the soil polluted by the medicinal powder can be accelerated.

Preferably, a plurality of convex blocks are uniformly distributed on the outer circumferential surface of each crushing roller, a sliding cavity is formed in each convex block, a first sliding block is arranged in each sliding cavity in a sliding mode, an ejector rod is fixedly arranged at one end, far away from the crushing roller, of each first sliding block, a flexible sleeve ring is arranged at one end, far away from the crushing roller, of each ejector rod, and a first spring is connected between one side, close to the crushing roller, of each first sliding block and each convex block.

Preferably, every a plurality of spouts have all been opened to the both sides in advance the storehouse, every the both sides of screen cloth all are fixed and are provided with the connecting rod, every the connecting rod stretches out into the soil storehouse through the spout, the connecting rod is close to one side fixed rack that is provided with of broken roll, every side the top of spout is fixed and is provided with third driving motor, every third driving motor's output end is fixed and is provided with the half-gear, half-gear and rack intermittent type nature meshing transmission. Prevent that big stone from entering collecting vessel inside influence stability of inner assembly

Preferably, the fixed a plurality of bracing pieces that are provided with between the outer periphery that the hybrid disc is close to the collecting vessel bucket wall and the collecting vessel, the central point of hybrid disc puts to open there is the opening, one side that the puddler was kept away from to the hybrid disc is rotated and is provided with the sleeve, the sleeve cup joints on the dwang with dwang synchronous revolution, one side that the sleeve is close to the puddler is opened there is smooth notch, the dwang is close to the fixed kicking block that can go deep into smooth notch inside, every of being provided with of one end that the puddler is close to the hybrid disc is fixed and is provided with the sloping block, the fixed a plurality of hybrid bars that are provided with on the outer periphery of sleeve, every the surface of hybrid bar bottom and hybrid disc is closely laminated, every the hybrid bar is kept away from telescopic one end and is opened there is the inclined plane. The sloping block can break the convex block flowing down from the upper soil leakage hole along with the rotation of the stirring rod to prevent agglomeration.

Preferably, the fixed several powder storehouses that are provided with in the collecting vessel outside, every open the inside in powder storehouse has the powder chamber, every the powder storehouse is fixed to be set up in the hybrid disk top, every the one end that the collecting vessel was kept away from in the powder storehouse is provided with demountable installation's cang gai, every the one end that the cang gai was kept away from in the powder storehouse is deepened the inside of collecting vessel, every the powder storehouse is deepened the fixed connecting block that is provided with of the inside one end of collecting vessel, every one side that the connecting block is close to the dwang is opened there is the notch of spilling the medicine, every intercommunication each other between notch of spilling the medicine and the powder chamber, every the inside slip of notch of spilling is provided with the second slider that can completely cut off intercommunication between powder chamber and the notch of spilling the medicine, every one side that the powder chamber was kept away from to the second slider is fixed to be provided with arc-shaped baffle, every along the soil piece flow direction be close to gradually, every be connected with a plurality of second springs between second slider and the dwang block. Arc baffle is close to the mixture that the different weight powder of dwang can realize different levels soil along soil block flow direction gradually, can effectual use of saving powder.

Preferably, every the fixed through-hole that is provided with of one end that cowl is close to the second slider, every the inside slip of through-hole is provided with the stereoplasm pipeline, every the one end that the through-hole was deepened to the stereoplasm pipeline is opened has a plurality of powder that can leave the powder intracavity and is blown the mouth of blowing to the dwang direction, every the fixed air pump that is provided with in connecting block bottom, every the stereoplasm pipeline passes through the air pump air feed. The air flow blown out from the air blowing opening can blow the medicine powder falling from the upper part to the central position of the collecting barrel, so that the comprehensive contact between the medicine powder and the soil can be ensured

Preferably, a bottom cover is fixedly arranged above the bottom plate, the collecting barrel can be sleeved above the bottom cover, a plurality of second hydraulic telescopic columns capable of lifting the collecting barrel are fixedly arranged on the outer circumferential surface of the bottom of the collecting barrel, and a second hydraulic pump for providing hydraulic pressure for the second hydraulic telescopic columns is fixedly arranged on one side, far away from the collecting barrel, of the bottom plate.

Preferably, the fixed conveyer belt that is provided with two inside transport soil blocks in storehouse into soil, every of bottom plate top the surface of conveyer belt all is fixed and is provided with a plurality of shelves native boards, every the both sides of conveyer belt all are fixed and are provided with the backplate, every one side that the backplate is close to the bottom plate all is fixed and is provided with a plurality of supporting legs, two one side that the conveyer belt was kept away from each other is fixed and is provided with the driven fourth driving motor of drive conveyer belt.

Preferably, a soil shoveling device capable of producing soil blocks onto the conveyor belt is arranged on one side, away from the collecting barrel, of each conveyor belt, and two rows of crawler wheels driving the equipment to move are arranged on one side, away from the collecting barrel, of the bottom plate.

Has the advantages that:

1. according to the invention, through the matching of the arc-shaped blocking rod and the mixing rod, the mixing of the medicinal powder with different weight in different levels of soil is realized, and the use of the medicinal powder can be effectively saved.

1. 2, the invention realizes more uniform and comprehensive mixing of the medicinal powder and the soil by matching the arc-shaped stop lever with the hard pipeline, and can effectively improve the soil remediation efficiency.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of a collection bucket;

FIG. 4 is a front view of the collection bucket;

FIG. 5 is a top view of the collection bucket;

FIG. 6 is an axial cross-sectional view taken along line A-A of FIG. 4;

FIG. 7 is a cross-sectional view taken at B-B of FIG. 5;

FIG. 8 is an enlarged view of a portion of FIG. 7 at C;

fig. 9 is a partially enlarged view of fig. 7 at D.

In the figure: the device comprises a bottom plate 10, a collecting barrel 11, a soil inlet bin 12, a crushing roller 13, a screen 14, a mixing disc 18, a soil leakage hole 19, a rotating rod 15, a stirring rod 16, a baffle 55, a first hydraulic telescopic column 54, a first hydraulic pump 56, a driven gear 26, a first driving motor 28, a driving gear 27, a second driving motor 57, a lug 21, a sliding cavity 22, a first sliding block 23, a top rod 24, a flexible lantern ring 20, a first spring 25, a sliding groove 29, a connecting rod 30, a rack 33, a third driving motor 31, a half gear 32, a supporting rod 34, an opening 39, a sleeve 37, a smooth notch 38, a top block 36, a sloping block 69, a mixing rod 40, a sloping surface 41, a powder bin 17, a powder cavity 53, a bin cover 52, a connecting block 42, a pesticide spraying notch 43, a second sliding block 44, an arc-shaped blocking rod 46, a second spring 50, a through hole 47, a hard pipeline 48, a gas blowing hole 51, an air pump 49, a bottom cover 60, a second hydraulic telescopic column 58, a second hydraulic pump 59, a conveyor belt 63, a soil blocking plate 64, a guard plate 61, a guard plate 62, a fourth soil scraper wheel 65, a support leg wheel 66 and a support leg wheel 66.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

With reference to fig. 1-9, a heavy metal contaminated soil remediation device, including bottom plate 10, the fixed collecting vessel 11 that is provided with in top of bottom plate 10, the fixed two soil feeding bins 12 that are provided with in one end that bottom plate 10 was kept away from to collecting vessel 11, two soil feeding bins 12 are inside to be rotated and are provided with two sets of breaking rolls 13 that can twist with the clod, every group breaking roll 13 is close to bottom plate one side and is provided with the screen cloth 14 that can sieve out the boulder, the fixed hybrid disc 18 that is provided with in screen cloth 14 below, open on the surface of hybrid disc 18 has a plurality of hourglass native hole 19, the inside central point of collecting vessel 11 puts to rotate and is provided with dwang 15, the inside of collecting vessel 11 is stretched out to dwang 15 one end, the fixed a plurality of puddlers 16 that is provided with to the one end that dwang 15 deepened into the inside of collecting vessel 11, puddler 15 deepens the fixed baffle 55 that is provided with in one end that goes out the inside of collecting vessel 11, baffle 55 is close to one side fixed a plurality of collecting vessel 11 is provided with a plurality of hydraulic telescopic column 54, the fixed first hydraulic pump 56 that is provided with.

Furthermore, one end of each crushing roller 13 extends into the soil bin 12, one end of each crushing roller 13 extending into the soil bin 12 is fixedly provided with a driven gear 26, each group of driven gears 26 are in meshed transmission with each other, one side of each soil bin 12, which is far away from the baffle 55, is fixedly provided with a first driving motor 28, the output end of each driving motor 28 is fixedly provided with a driving gear 27, and the driving gear 27 is in meshed transmission with one adjacent driven gear 26; one end of the rotating rod 15 extends out of the collecting barrel 11, a second driving motor 57 is fixedly arranged on one side of the baffle plate 55 far away from the collecting barrel 11, and the output end of the second driving motor 57 is fixedly connected with one end of the rotating rod 15 extending out of the collecting barrel 11.

Furthermore, a plurality of convex blocks 21 are uniformly distributed on the outer circumferential surface of each crushing roller 13, a sliding cavity 22 is formed in each convex block 21, a first sliding block 23 is arranged in each sliding cavity 22 in a sliding mode, one end, far away from the crushing roller 13, of each first sliding block 23 is fixedly provided with a push rod 24, one end, far away from the crushing roller 13, of each push rod 24 is provided with a flexible sleeve ring 20, and a first spring 25 is connected between one side, close to the crushing roller 13, of each first sliding block 23 and the convex block 21.

Furthermore, a plurality of sliding grooves 29 are formed in two sides of each soil inlet bin 12, connecting rods 30 are fixedly arranged on two sides of each screen 14, each connecting rod 30 extends out of the soil inlet bin 12 through the corresponding sliding groove 29, a rack 33 is fixedly arranged on one side, close to the crushing roller 13, of each connecting rod 30, a third driving motor 31 is fixedly arranged above each sliding groove 29, a half gear 32 is fixedly arranged at the output end of each third driving motor 31, and the half gear 32 and the rack 33 are in intermittent meshing transmission.

Furthermore, a plurality of support rods 34 are fixedly arranged between the outer circumferential surface of the mixing disc 18 close to the wall of the collecting barrel 11 and the collecting barrel 11, an opening 39 is formed in the center of the mixing disc 18, a sleeve 37 is rotatably arranged on one side of the mixing disc 18 far away from the stirring rod 16, the sleeve 37 is sleeved on the rotating rod 15 and rotates synchronously with the rotating rod 15, a smooth notch 38 is formed in one side of the sleeve 37 close to the stirring rod 16, a top block 36 capable of penetrating into the smooth notch 38 is fixedly arranged at one end of the rotating rod 15 close to the stirring rod 16, an inclined block 69 is fixedly arranged on one side of each stirring rod 16 close to the mixing disc 18, a plurality of mixing rods 40 are fixedly arranged on the outer circumferential surface of the sleeve 37, the bottom of each mixing rod 40 is tightly attached to the surface of the mixing disc 18, and an inclined surface 41 is formed at one end of each mixing rod 40 far away from the sleeve 37.

Further, a plurality of powder bins 17 are fixedly arranged outside the collecting barrel 11, a powder cavity 53 is formed in each powder bin 17, each powder bin 17 is fixedly arranged above the mixing disc 18, a detachably mounted bin cover 52 is arranged at one end, far away from the collecting barrel 11, of each powder bin 17, one end, far away from the bin cover 52, of each powder bin 17 penetrates into the collecting barrel 11, a connecting block 42 is fixedly arranged at one end, far away from the collecting barrel 11, of each powder bin 17, one side, close to the rotating rod 15, of each connecting block 42 is provided with a powder spreading notch 43, each powder spreading notch 43 is communicated with the powder cavity 53, a second sliding block 44 capable of isolating communication between the powder cavity 53 and the powder spreading notch 43 is arranged in each powder spreading notch 43 in a sliding mode, an arc-shaped baffle 46 is fixedly arranged at one side, far away from the powder cavity 53, of each arc-shaped baffle 46 is gradually close to the powder cavity 15 along the flow direction of the soil blocks, and a plurality of second springs 50 are connected between each second sliding block 44 and the connecting block 42.

Furthermore, a through hole 47 is fixedly arranged at one end of each arc-shaped baffle 46 close to the second sliding block 46, a hard pipeline 48 is slidably arranged in each through hole 47, one end of each hard pipeline 48, which penetrates into the through hole 47, is provided with a plurality of air blowing openings 51 which can blow the medicine powder left in the medicine powder cavity 53 to the rotating rod 15, an air pump 49 is fixedly arranged at the bottom of each connecting block 42, and each hard pipeline 48 supplies air through the air pump 49.

Further, a bottom cover 60 is fixedly arranged above the bottom plate 10, the collecting barrel 11 can be sleeved above the bottom cover 60, a plurality of second hydraulic telescopic columns 58 capable of lifting the collecting barrel 11 are fixedly arranged on the outer circumferential surface of the bottom of the collecting barrel 11, and a second hydraulic pump 59 for supplying hydraulic pressure to the second hydraulic telescopic columns 58 is fixedly arranged on one side of the bottom plate 10 far away from the collecting barrel 11.

Further, two conveyor belts 63 for conveying soil blocks into the soil bin 12 are fixedly arranged above the bottom plate 10, a plurality of soil blocking plates 64 are fixedly arranged on the outer surface of each conveyor belt 63, guard plates 61 are fixedly arranged on two sides of each conveyor belt 63, a plurality of support legs 62 are fixedly arranged on one side, close to the bottom plate 10, of each guard plate 61, and a fourth drive motor 65 for driving the conveyor belts 63 to drive is fixedly arranged on one side, away from each other, of each conveyor belt 63.

Furthermore, a soil shoveling device 66 capable of producing soil blocks onto the conveyor belts 63 is arranged on one side of each conveyor belt 63 away from the collecting barrel 11, and two rows of track wheels 67 for driving the device to move are arranged on one side of the bottom plate 10 away from the collecting barrel 11.

The working principle is as follows: initially, the powder bin 53 is filled with a sufficient amount of powder to improve the heavy metal content of the soil, the bin cover 52 is closed, the crawler wheels 67 are started to bring the device close to the soil to be repaired, the soil shoveling device 66 is aligned with the soil, and the fourth driving motor 65 is started to drive the conveyor belt 63 to start transmission. Starting the first hydraulic pump 56 controls the first hydraulic telescopic column 54 to shorten, the longest distance to get the rotating rod 15 deep inside the collecting tub 11, and then the first hydraulic telescopic column 54 stops shortening.

The first driving motor 28 and the air pump 49 are started, the driving gear 27 starts to drive the driven gear 26 to start rotating under the action of the first telescopic motor 28, and the crushing roller 13 entering the soil bin 12 also starts to synchronously rotate. The third driving motor 31 is started, and the half gear 32 starts to drive the screen mesh 14 to pitch up and down continuously under the action of the third driving motor 31.

After the equipment is stable in state, the soil shoveling device 66 is started to shovel the polluted soil to the rear conveying belt 63, the surface soil in a certain range is firstly shoveled out in a centralized mode in the soil shoveling process, and the equipment is operated to shovel out the soil in a slightly deeper layer after the surface soil is shoveled out. The heavy metal content of the surface soil is higher than that of the deep soil, and the centralized treatment effect of the high-content heavy metal soil is better and more convenient. Soil on the conveyer belt 63 can be taken into inside the soil storehouse 12 by conveyer belt 63, the inside soil of entering soil storehouse 12 can be squeezed into little garrulous fast by broken roll 13, if wrapping up some great harder stones in soil and being fast will push up ejector pin 24 into spout 29 when rolling 13 through broken, flexible lantern ring 20 can cave in and avoid big stone head piece, let big stone head piece directly through broken roll 13, the soil piece that is squeezed into little shiver can directly pass through screen cloth 14, and big stone head piece can fall on screen cloth 14. Pitching the screen 14 up and down causes small clumps of soil flowing down the top to quickly pass through the screen 14, while large clumps of stone cannot pass through the screen 14 and can be fed out into the silo.

When the clods fall to the mixing plate 18, the second driving motor 57 is started, the rotating lever 15 starts to rotate by the driving of the second driving motor 57, and the stirring lever 16 and the mixing lever 40 start to rotate by the driving of the rotating lever 15. The inclined surface 41 of the mixing rod 40 pushes against the arc-shaped stopper 46 when rotated, the second slider 44 slides away from the stirring rod 16 against the elastic force of the second spring 50 when the mixing rod 40 pushes against the arc-shaped stopper 46, and the powder in the powder chamber 53 falls downward through the medicine dispensing notch 43 when the second slider 44 slides. When the arc-shaped stopper 46 slides backwards, the hard pipe 48 extends out of the through hole 47, and the air blowing port 51 on the surface of the hard pipe 48 blows the medicine powder falling from above to the central part of the collecting vessel 11. The contact area of the medicine powder and the soil blocks can be increased by blowing the medicine powder to the middle part of the collecting barrel 11, and the repair of the medicine powder to heavy metal soil can be accelerated.

After the mixing rod 40 passes the arcuate stop 46, the second slider 44 will re-block the dispensing slot 43 under the action of the second spring 50. The clod that falls on hybrid disc 18 can be by mixing pole 40 directly fall into collecting vessel 11 bottom through leaking the soil hole, can fall into collecting vessel 11 bottom again after scattering by sloping block 69 above puddler 16 when the clod falls into collecting vessel 11 bottom, and what the soil of collecting vessel 11 bottom can be spread under the effect of puddler 16 levels more loose, is favorable to the reaction of powder and soil.

The first hydraulic telescopic column 54 gradually raises the rotating rod 15 during the rotation of the rotating rod 15, and keeps the stirring rod 16 above the soil accumulated inside the collecting vessel 11 at that time. The ascending position of dwang 15 after the top soil is shoveled out can make kicking block 36 go deep into inside smooth notch 38, and along with the rising sleeve 37 of dwang 15 also can be taken and is kept away from mixing disc 18 gradually, gliding distance between arc shelves pole 46 and inclined plane 41 shortens gradually after mixing rod 40 rises, and the back-off volume of second slider 44 also diminishes gradually, and the powder volume that falls down from powder chamber 53 also diminishes gradually. The heavy metal content of the deep soil is low, the dosage of the medicinal powder which is the same as that of the surface soil does not need to be added, and the dosage of the medicinal powder can be greatly saved.

After the heavy metal contaminated soil in the area is collected inside the collecting barrel 11, all motors are turned off to wait for the soil and the medicine powder to react for a period of time inside the collecting barrel 11, after the reaction is finished, the second hydraulic pump 59 is started to control the second hydraulic telescopic column 58 to lift the collecting barrel 11, and then the repaired soil is refilled.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.

Claims

1. A heavy metal contaminated soil remediation device comprises a bottom plate (10), a collecting barrel (11) is fixedly arranged above the bottom plate (10), it is characterized in that one end of the collecting barrel (11) far away from the bottom plate (10) is fixedly provided with two soil inlet bins (12), two groups of crushing rollers (13) capable of twisting soil blocks into pieces are rotatably arranged in the two soil inlet bins (12), one side of each group of crushing rollers (13) close to the bottom plate is provided with a screen (14) capable of screening out large stones, a mixing disc (18) is fixedly arranged below the screen (14), the surface of the mixing disc (18) is provided with a plurality of soil leaking holes (19), a rotating rod (15) is rotatably arranged at the center position in the collecting barrel (11), one end of the rotating rod (15) extends out of the inner part of the collecting barrel (11), a plurality of stirring rods (16) are fixedly arranged at one end of the rotating rod (15) which extends into the collecting barrel (11), the stirring rods (16) are uniformly distributed along the circumferential surface of the rotating rod (15), a baffle plate (55) is fixedly arranged at one end of the rotating rod (15) which is deeper than the inner part of the collecting barrel (11), one side of the baffle plate (55) close to the collecting barrel (11) is fixedly provided with a plurality of first hydraulic telescopic columns (54), and one end, far away from the baffle plate (55), of each first hydraulic telescopic column (54) is fixedly provided with a first hydraulic pump (56).

2. The heavy metal contaminated soil remediation device of claim 1, wherein each crushing roller (13) has one end extending out of the soil inlet bin (12), a driven gear (26) is fixedly arranged at the end of each crushing roller (13) extending out of the soil inlet bin (12), each set of driven gears (26) is in meshed transmission with each other, a first driving motor (28) is fixedly arranged at one side of each soil inlet bin (12) far away from the baffle plate (55), a driving gear (27) is fixedly arranged at the output end of each driving motor (28), and the driving gear (27) is in meshed transmission with an adjacent one of the driven gears (26); the inside of collecting vessel (11) is stretched out to the one end of dwang (15), one side that collecting vessel (11) were kept away from in baffle (55) is fixed and is provided with second driving motor (57), the one end fixed connection that collecting vessel (11) was stretched out with dwang (15) to the output of second driving motor (57).

3. The heavy metal contaminated soil remediation device according to claim 1, wherein a plurality of convex blocks (21) are uniformly distributed on the outer circumferential surface of each crushing roller (13), a sliding cavity (22) is formed inside each convex block (21), a first sliding block (23) is slidably arranged inside each sliding cavity (22), a push rod (24) is fixedly arranged at one end, away from the crushing roller (13), of each first sliding block (23), a flexible sleeve ring (20) is arranged at one end, away from the crushing roller (13), of each push rod (24), and a first spring (25) is connected between one side, close to the crushing roller (13), of each first sliding block (23) and the convex block (21).

4. The heavy metal contaminated soil remediation device of claim 1, wherein a plurality of sliding grooves (29) are formed in two sides of each soil inlet bin (12), connecting rods (30) are fixedly arranged on two sides of each screen (14), each connecting rod (30) extends out of each soil inlet bin (12) through each sliding groove (29), a rack (33) is fixedly arranged on one side, close to the crushing roller (13), of each connecting rod (30), a third driving motor (31) is fixedly arranged above each sliding groove (29), a half gear (32) is fixedly arranged at an output end of each third driving motor (31), and the half gear (32) and the rack (33) are in intermittent meshing transmission.

5. The heavy metal contaminated soil remediation device of claim 1, wherein a plurality of support rods (34) are fixedly arranged between the outer circumferential surface of the mixing disc (18) close to the wall of the collecting barrel (11) and the collecting barrel (11), an opening (39) is formed in the center of the mixing disc (18), one side of the mixing disc (18) far away from the stirring rod (16) is rotatably provided with a sleeve (37), the sleeve (37) is sleeved on the rotating rod (15) and synchronously rotates with the rotating rod (15), one side of the sleeve (37) close to the stirring rod (16) is provided with a smooth notch (38), one end of the rotating rod (15) close to the stirring rod (16) is fixedly provided with a top block (36) capable of penetrating into the inside of the smooth notch (38), each side of the stirring rod (16) close to the mixing disc (18) is fixedly provided with a sloping block (69), a plurality of mixing rods (40) are fixedly arranged on the outer circumferential surface of the sleeve (37), the bottom of each mixing rod (40) is closely attached to the surface of the mixing disc (18), and one end of each mixing rod (40) is far away from a sloping surface (41).

6. The heavy metal contaminated soil remediation device of claim 1, collecting vessel (11) outside is fixed to be provided with a plurality of powder storehouse (17), every the inside in powder storehouse (17) is opened there is powder chamber (53), every powder storehouse (17) is fixed to be set up in hybrid disc (18) top, every the one end that collecting vessel (11) were kept away from in powder storehouse (17) is provided with demountable installation's cang gai (52), every the one end that cang gai (52) was kept away from in powder storehouse (17) is deepened into the inside of collecting vessel (11), every powder storehouse (17) is deepened into the fixed connecting block (42) that is provided with of one end inside of collecting vessel (11), every connecting block (42) are close to one side of dwang (15) and are opened and are spilt notch (43), every intercommunication each between spilt notch (43) and powder chamber (53) communicates each other, every spilt notch (43) inside sliding of dwang notch (43) is provided with can completely cut off the second slider (44) that communicates between powder chamber (53) and the spilt notch (43), every second slider (44) one side of keeping away from powder chamber (53) is provided with fixed baffle (46) of arc shape, every second slider (46) are close to the flow between every second slider (46) and every arc-shaped spring block (46) are connected with each other gradually.

7. The heavy metal contaminated soil remediation device of claim 6, wherein a through hole (47) is fixedly formed in one end, close to the second slider (46), of each arc-shaped baffle (46), a hard pipeline (48) is slidably arranged inside each through hole (47), a plurality of air blowing openings (51) capable of blowing the medicine powder left in the medicine powder cavity (53) towards the rotating rod (15) are formed in one end, deep into the through hole (47), of each hard pipeline (48), an air pump (49) is fixedly arranged at the bottom of each connecting block (42), and each hard pipeline (48) supplies air through the air pump (49).

8. The heavy metal contaminated soil remediation device according to claim 1, wherein a bottom cover (60) is fixedly arranged above the bottom plate (10), the collecting bucket (11) can be sleeved above the bottom cover (60), a plurality of second hydraulic telescopic columns (58) capable of lifting the collecting bucket (11) are fixedly arranged on the outer circumferential surface of the bottom of the collecting bucket (11), and a second hydraulic pump (59) for supplying hydraulic pressure to the second hydraulic telescopic columns (58) is fixedly arranged on one side of the bottom plate (10) far away from the collecting bucket (11).

9. The heavy metal contaminated soil remediation device according to claim 1, wherein two conveyor belts (63) for conveying soil blocks to the interior of the soil inlet bin (12) are fixedly arranged above the bottom plate (10), a plurality of soil blocking plates (64) are fixedly arranged on the outer surface of each conveyor belt (63), guard plates (61) are fixedly arranged on two sides of each conveyor belt (63), a plurality of support legs (62) are fixedly arranged on one side, close to the bottom plate (10), of each guard plate (61), and a fourth driving motor (65) for driving the conveyor belts (63) to transmit power is fixedly arranged on one side, away from each other, of each conveyor belt (63).

10. The heavy metal contaminated soil remediation device of claim 9, wherein each conveyor belt (63) is provided with a soil shoveling device (66) capable of producing soil blocks onto the conveyor belt (63) at a side away from the collection bucket (11), and two rows of track wheels (67) are provided at a side of the base plate (10) away from the collection bucket (11) to move the device.