A cement kiln collaborative disposal device for contaminated soil and a method for treating the contaminated soil

Abstract

The invention relates to the technical field of contaminated soil treatment, and proposes a device for co-disposing contaminated soil in a cement kiln and a treatment method thereof, comprising a shell, a drying component for drying soil added into the shell, and a crushing component for crushing the dried soil, wherein a shaking table for receiving the soil crushed by the crushing component is arranged inside the shell, and a driving component for driving the shaking table to shake back and forth is arranged outside the shell; in the invention, an output shaft of a driving unit drives a first power arm to rotate, and then a second power arm pushes and pulls the shaking table back and forth, so that the shaking table shakes back and forth with the first rotating shaft as the center, so that soil particles falling into the shaking table are fully screened through a screen, and the screened fine soil particles directly enter a material receiving frame through a material guide plate of a material guide member, which can better screen out fine soil particles compared with the prior art, and solves the problem in the prior art that soil is easy to cause material jamming and affects the filtering and screening effect.

Description

Technical Field

[0001] The present invention relates to the technical field of contaminated soil treatment, and in particular to a cement kiln coordinated contaminated soil treatment device and a treatment method thereof. Background Art

[0002] Contaminated soil is extremely harmful to the environment and human health. How to properly dispose of contaminated soil is the key. The cement kiln incineration technology of contaminated soil has been industrialized. The cement kiln mixes organic pollutants in the soil with oxygen and burns them under high temperature conditions to produce carbon dioxide and water, and mixes the incineration residues into cement clinker to make cement products. However, the traditional cement incineration process requires a lot of manpower, such as manual loading and unloading, material transportation, etc., which results in low efficiency in the treatment of contaminated soil. In the prior art, the contaminated soil to be treated is added to the crushing box and crushed by the crushing drum, and then the crushed soil is sieved by the up and down swing of the sieve plate. After the screening is completed, it falls into the receiving barrel, and the receiving barrel is transmitted to the side close to the kiln body by the screw, and the receiving barrel is lifted by the winch, and the crushed contaminated soil is poured into the kiln body for incineration treatment. The contaminated soil is treated by automation, thereby improving the treatment efficiency of the contaminated soil. However, in the prior art, due to the different dryness and humidity of the contaminated soil, if the soil is directly crushed, the wet soil is easy to cause clogging of the crushing device, thereby affecting the normal treatment of the contaminated soil.

[0003] After searching, the publication number CN115213204A discloses a contaminated soil cement kiln coordinated disposal system, including a shell, a crushing component and a drying component. The drying component includes a stirring blade, a first rotating shaft, a second rotating shaft and a hot air blower. The stirring blade is used to stir the contaminated soil. The first rotating shaft is fixedly connected to the stirring blade, and the second rotating shaft is rotatably connected to the shell. The hot air blower is installed on the outside of the shell. The contaminated soil to be treated is added to the inside of the shell from the top of the shell. The first rotating shaft and the second rotating shaft are driven by two motors to rotate in opposite directions respectively. When the rotating shaft rotates, the stirring blade is driven to rotate. The stirring blade rotates to turn over the contaminated soil. At the same time, the hot air blower blows hot air into the inside of the shell, thereby realizing the drying treatment of the contaminated soil, avoiding the wet soil from clogging the crushing device when the contaminated soil is subsequently crushed, thereby ensuring the normal treatment of the contaminated soil.

[0004] However, the above technology still has the following problems: the above technology discharges the crushed soil particles into an inclined outer cylinder through a funnel, filters the crushed contaminated soil through a filter screen, and discharges the filtered contaminated soil from the lower end of the outer shell by gravity. Due to the irregularity of the crushed soil particles and the contact friction between the soil particles and the filter screen, the soil is difficult to be discharged from the outer cylinder only by the component force of gravity in the inclined direction, which causes material jamming and affects the filtering and screening effect. Summary of the invention

[0005] The present invention provides a cement kiln coordinated disposal device for contaminated soil and a treatment method thereof, which solves the problem in the prior art that soil easily causes material jamming and affects filtering and screening effects.

[0006] The technical solution of the present invention is as follows: A device for the coordinated disposal of contaminated soil by a cement kiln comprises a shell, a drying component for drying the soil added into the shell, and a crushing component for crushing the dried soil, a shaking table for receiving the soil crushed by the crushing component is arranged in the shell, a driving component for driving the shaking table to shake back and forth is arranged outside the shell, a discharge port is arranged at the bottom of the shaking table, and a material guide member for guiding the small particles of dried soil screened by the shaking of the shaking table to both sides is arranged below the discharge port, a discharge component for discharging large particles of dried soil discharged from the shaking table out of the shell under the synchronous drive of the driving component is arranged below the material guide member, an abrasive component for grinding and pressing the dried soil particles in cooperation with the shaking of the shaking table is arranged in the shaking table, a stirring component for stirring the dried soil particles in cooperation with the shaking of the shaking table is arranged in the material guide member, and a receiving frame for collecting the small particles of dried soil discharged by the material guide member and the discharge component is arranged on the inner side of the bottom of the shell.

[0007] Preferably, the upper part of the shaking table is bucket-shaped, the lower part of the shaking table is cylindrical, and the bottom is hollowed out to form a feeding port of the shaking table.

[0008] Preferably, ribs are provided on both sides of the upper part of the shaking table, and both sides of the bottom of the shaking table are hollowed out, and a screen whose surface is flush with the inner wall of the shaking table is fixed at the hollowed out part.

[0009] Preferably, the driving assembly includes a driving unit, which is fixed on the outer wall of the shell, and a first pulley and a first power arm are fixed on the output shaft of the driving unit, the length direction of the first power arm is perpendicular to the output axis of the driving unit, the first pulley coincides with the output axis of the driving unit, the first power arm is hinged to a second power arm at one end away from the output shaft of the driving unit, and the second power arm is hinged to the middle position of the rocking bed at one end away from the first power arm.

[0010] Preferably, the abrasive assembly includes a rotating rod, which is rotatably connected to the shaking table, one end of the rotating rod passes through the outside of the shaking table and is fixedly connected to the second power arm, and a fan-shaped block is fixed at the position where the rotating rod is located inside the shaking table, and the first grinding blocks are symmetrically fixed on both sides of the bottom of the fan-shaped block, and the second grinding blocks are symmetrically fixed on both sides of the bottom of the bucket body of the shaking table.

[0011] Preferably, the top of the second grinding block is provided with an arc-shaped convex surface which smoothly transitions to the end of the screen, and the bottom of the second grinding block is provided with an arc-shaped concave surface which matches the first grinding block.

[0012] Preferably, the material guiding member comprises a material guiding frame, the material guiding frame is fixed in the shell, and material guiding plates distributed in a herringbone pattern are fixed on both sides of the material guiding frame.

[0013] Preferably, the stirring assembly includes a first rotating shaft, both ends of which pass through the shaking table and the material guide frame and are rotatably connected to the shell, a circular groove is opened on the outer side of the cylindrical part of the shaking table, an annular tooth is fixed in the circular groove, a first gear is fixed at the position of the first rotating shaft located in the annular tooth, a second rotating shaft is rotatably connected to the inner side of the material guide frame, a second gear meshing with the first gear and the annular tooth is fixed on the second rotating shaft, and a plurality of annularly distributed stirring rods are fixed on the inner side of the cylindrical part of the shaking table.

[0014] Preferably, the discharge assembly includes a cylinder, which is fixed to the shell, one end of the cylinder extends outside the shell, the upper half of the cylinder located in the shell is provided with a material receiving port, a roller is rotatably connected to the cylinder, and the roller is coaxially arranged with the cylinder, one end of the roller passes through the cylinder and the shell and is fixed with a second pulley, the second pulley is connected to the first pulley through a transmission belt, a spiral blade is fixed to the roller located in the cylinder, a discharge port is provided at the bottom of one end of the cylinder located outside the shell, and a row of filter holes arranged along the length direction of the cylinder are provided at the bottom of the part of the cylinder located in the shell.

[0015] Based on the above device, the present invention also proposes a method for treating contaminated soil in a cement kiln, comprising the following steps:

[0016] Step 1: Add the contaminated soil to be treated into the shell, and use the drying component to dry the initial soil so that the moisture of the soil evaporates and is dried;

[0017] Step 2: the dried soil is crushed by a crushing assembly to obtain fine dried soil particles;

[0018] Step 3: The dried soil particles crushed by the crushing component fall into the shaking table. The shaking table is driven by the driving component to continuously shake in the shell, so that the crushed dried soil particles can be screened. The screened fine soil particles directly enter the receiving frame through the guide member. The larger dried soil particles are further ground and pressed by the abrasive component in cooperation with the shaking shaking table. After being refined, they enter the discharge component through the guide member. The stirring component in the guide member cooperates with the shaking shaking table to stir the soil particles at the discharge port at the bottom of the shaking table to prevent blockage.

[0019] Step 4: the discharge component, under the synchronous driving of the driving component, continuously pushes the dried soil particles discharged by the material guide member to the outside of the shell, and screens out the fine soil particles again during the pushing process, and scatters them in the receiving frame for collection.

[0020] The beneficial effects of the present invention are:

[0021] The output shaft of the driving unit in the present invention drives the first power arm to rotate, and then the second power arm pushes and pulls the shaking table back and forth, so that the shaking table shakes back and forth with the first rotating shaft as the center, so that the soil particles falling into the shaking table are fully screened through the screen, and the screened fine soil particles directly enter the material receiving frame through the material guide plate of the material guide member. Compared with the prior art, the fine soil particles can be better screened out, and the problem that the soil in the prior art is easy to cause material jamming and affect the filtering and screening effect is solved;

[0022] In the present invention, when the shaking table swings around the first rotating shaft, since the second power arm is fixedly connected to the rotating rod, the speed difference between the rotating rod and the shaking table causes the fan-shaped block to swing relatively in the shaking table, and then the first grinding blocks on both sides of the bottom of the fan-shaped block and the second grinding blocks on both sides of the bottom of the shaking table are pressed to grind and press the larger soil particles;

[0023] In the present invention, when the shaking table is shaken with the first rotating shaft as the center, the first rotating shaft is driven to rotate by the meshing of the annular teeth in the circular groove and the second gear, and by the meshing of the second gear and the first gear, and the rotation direction of the first rotating shaft is always opposite to the shaking and swinging direction of the shaking table, so that the stirring rod on the first rotating shaft can stir the soil particles at the feeding port of the shaking table to prevent the feeding port from being blocked by the soil particles;

[0024] The material guide frame of the material guide member in the present invention scatters the soil particles discharged from the material outlet of the shaking table into the cylinder through the material receiving port, and the output shaft of the driving unit drives the first pulley to rotate. Under the transmission action of the transmission belt, the roller shaft is driven to rotate through the second pulley, and then the spiral blade pushes the soil particles in the cylinder toward the end where the material outlet is located and sends them out of the shell. The soil particles being pushed can be further screened through the filter holes at the bottom of the cylinder.

[0025] The filter holes at the bottom of the cylinder in the present invention can scatter the fine soil particles in a row in the middle of the material receiving frame, and the fine soil particles scattered by the shaking table can be scattered on both sides of the material receiving frame under the guidance of the material guide plates on both sides of the material guide frame. Multi-point material discharge is achieved through the guidance effect of the material guide piece, which is conducive to the dispersion of soil in the material receiving frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Figure 1This is a schematic diagram of the structure of a cement kiln collaborative disposal of contaminated soil device proposed by the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the shaking table, material guide and driving assembly proposed by the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the driving assembly proposed by the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the shaking table and the material guide member proposed in the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the shaking table proposed by the present invention;

[0032] Figure 6 This is a schematic diagram of the cross-sectional structure of the shaking table proposed by the present invention;

[0033] Figure 7 A schematic diagram of the structure of the abrasive assembly proposed by the present invention;

[0034] Figure 8 for Figure 6 The enlarged structural diagram at A in the middle;

[0035] Fig. 9 This is a schematic diagram of the structure of the discharge assembly proposed by the present invention;

[0036] In the figure: 1, shell; 2, shaking table; 21, rib; 22, screen; 23, circular groove; 24, annular gear; 25, second grinding block; 251, arc convex surface; 252, arc concave surface; 3, material receiving frame; 4, driving assembly; 41, first power arm; 42, second power arm; 43, first pulley; 44, driving unit; 5, discharge assembly; 51, cylinder; 52, material receiving port; 53, roller; 54, second pulley; 55, spiral blade; 56, discharge port; 6, material guide; 61, material guide frame; 62, material guide plate; 7, abrasive assembly; 71, rotating rod; 72, fan-shaped block; 73, first grinding block; 8, stirring assembly; 81, first rotating shaft; 82, first gear; 83, stirring rod; 84, second rotating shaft; 85, second gear. DETAILED DESCRIPTION

[0037] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1 and Figure 2The present invention provides a technical solution: a cement kiln coordinated disposal device for contaminated soil, comprising a shell 1, a drying component for drying the soil added to the shell 1, and a crushing component for crushing the dried soil, wherein the structural forms of the drying component and the crushing component can refer to the cited patent, or other forms can be used to achieve the drying and crushing of the contaminated soil, a shaking table 2 for receiving the soil crushed by the crushing component is arranged in the shell 1, a driving component 4 for driving the shaking table 2 to reciprocate is arranged outside the shell 1, a feeding port is arranged at the bottom of the shaking table 2, and a There is a material guide member 6 for guiding the small dried soil particles screened by the shaking of the shaking table 2 to both sides, a discharge component 5 is arranged below the material guide member 6, and discharges the large dried soil particles discharged by the shaking table 2 to the outside of the shell 1 under the synchronous drive of the driving component 4, an abrasive component 7 is arranged in the shaking table 2, and the dried soil particles are ground and pressed in coordination with the shaking of the shaking table 2. A stirring component 8 is arranged in the material guide member 6, and the dried soil particles are stirred in coordination with the shaking of the shaking table 2. A receiving frame 3 for collecting the small dried soil particles discharged by the material guide member 6 and the discharge component 5 is arranged on the inner side of the bottom of the shell 1.

[0039] See also Figure 3 and Figure 4 The upper part of the shaking table 2 is bucket-shaped, the lower part of the shaking table 2 is cylindrical, and the bottom is hollowed out to form a feeding port of the shaking table 2. The upper part of the shaking table 2 is provided with ribs 21 on both sides, and the bottom of the shaking table 2 is hollowed out on both sides, and a screen 22 whose surface is flush with the inner wall of the shaking table 2 is fixed at the hollowed-out part, which can facilitate the rolling of soil particles on the screen 22 and prevent material jamming.

[0040] See also Figure 2 and Figure 3 The driving assembly 4 includes a driving unit 44, which is fixed on the outer wall of the shell 1. A first pulley 43 and a first power arm 41 are fixed on the output shaft of the driving unit 44. The length direction of the first power arm 41 is perpendicular to the output axis of the driving unit 44. The first pulley 43 coincides with the output axis of the driving unit 44. The end of the first power arm 41 away from the output shaft of the driving unit 44 is hinged with a second power arm 42. The end of the second power arm 42 away from the first power arm 41 is hinged to the middle position of the shaking table 2. The driving unit 44 is composed of a motor and a reduction box. The output shaft of the driving unit 44 drives the first power arm 41 to rotate, and then the second power arm 42 pushes and pulls the shaking table 2 back and forth, so that the shaking table 2 shakes back and forth with the first rotating shaft 81 as the center, so that the soil particles dropped into the shaking table 2 are fully screened through the screen 22.

[0041] See also Figure 5 , Figure 6 , Figure 7 and Figure 8The abrasive assembly 7 includes a rotating rod 71, which is rotatably connected to the shaking table 2. One end of the rotating rod 71 passes through the outside of the shaking table 2 and is fixedly connected to the second power arm 42. A fan-shaped block 72 is fixed at the position where the rotating rod 71 is located in the shaking table 2. First grinding blocks 73 are symmetrically fixed on both sides of the bottom of the fan-shaped block 72. Second grinding blocks 25 are symmetrically fixed on both sides of the bottom of the bucket body of the shaking table 2. The top of the second grinding block 25 is provided with an arc-shaped convex surface 251 that smoothly transitions to the end of the screen 22. The bottom of the second grinding block 25 is provided with an arc-shaped concave surface 252 that is compatible with the first grinding block 73. When the shaking table 2 swings around the first rotating shaft 81 as the center, since the second power arm 42 is fixedly connected to the rotating rod 71, the speed difference between the rotating rod 71 and the shaking table 2 causes the fan-shaped block 72 to swing relatively in the shaking table 2, and then the first grinding blocks 73 on both sides of the bottom of the fan-shaped block 72 and the second grinding blocks 25 on both sides of the bottom of the shaking table 2 are pressed to grind and press the larger soil particles, such as Figure 8 As shown, the soil particles that have not been screened out pass through the arc convex surface 251 and enter the surface gap between the arc concave surface 252 and the first grinding block 73. When the fan-shaped block 72 swings closely in the shaking table 2, the soil particles can be ground and pressed by the first grinding block 73 and the arc concave surface 252, so that the soil particles are crushed. When the fan-shaped block 72 swings far away in the shaking table 2, the crushed soil particles can fall from the discharge port.

[0042] See also Figure 4 The material guide member 6 includes a material guide frame 61 , which is fixed in the housing 1 , and material guide plates 62 distributed in a herringbone pattern are fixed on both sides of the material guide frame 61 .

[0043] See also Figure 5 The stirring assembly 8 includes a first rotating shaft 81, both ends of which penetrate the shaking table 2 and the material guide frame 61 and are rotatably connected to the housing 1. A circular groove 23 is provided on the outer side of the cylindrical part of the shaking table 2, and a ring gear 24 is fixed in the circular groove 23. The first rotating shaft 81 is located in the ring gear 24 and a first gear 82 is fixed therein. A second rotating shaft 84 is rotatably connected to the inner side of the material guide frame 61, and a second gear 85 meshing with the first gear 82 and the ring gear 24 is fixed on the second rotating shaft 84. The first rotating shaft 81 is located in the cylindrical part of the shaking table 2. A plurality of annularly distributed stirring rods 83 are fixed on the inner side. When the shaking table 2 is shaken with the first rotating shaft 81 as the center, the first rotating shaft 81 is driven to rotate by the meshing of the annular teeth 24 in the circular groove 23 and the second gear 85, and by the meshing of the second gear 85 and the first gear 82. The rotation direction of the first rotating shaft 81 is always opposite to the shaking and swinging direction of the shaking table 2. Therefore, the stirring rods 83 on the first rotating shaft 81 can stir the soil particles at the discharge port of the shaking table 2 to prevent the discharge port from being blocked by the soil particles.

[0044] See also Figure 2 and Fig. 9The discharging assembly 5 includes a cylinder 51, which is fixed to the shell 1. One end of the cylinder 51 extends outside the shell 1. The upper half of the cylinder 51 located in the shell 1 is provided with a material receiving port 52. A roller 53 is rotatably connected in the cylinder 51, and the roller 53 is coaxially arranged with the cylinder 51. One end of the roller 53 passes through the cylinder 51 and the shell 1 and is fixed with a second pulley 54. The second pulley 54 is connected to the first pulley 43 through a transmission belt. The roller 53 is located in the cylinder 51 and is fixed with a spiral blade 55. A discharge port 56 is provided at the bottom of one end of the cylinder 51 located outside the shell 1. A row of filter holes arranged along the length direction of the cylinder 51 are provided at the bottom of the part of the cylinder 51 located in the shell 1. The material guide frame 61 of the material guide member 6 will shake the table The soil particles discharged from the discharge port are scattered in the cylinder 51 through the receiving port 52, and the output shaft of the driving unit 44 drives the first pulley 43 to rotate. Under the transmission action of the transmission belt, the roller shaft 53 is driven to rotate through the second pulley 54, and then the spiral blade 55 spirally pushes the soil particles in the cylinder 51 to the end where the discharge port 56 is located and sends them out of the shell 1. The soil particles being pushed can be further screened through the filter holes at the bottom of the cylinder 51, and then the fine soil particles are scattered in a row in the middle position of the receiving frame 3. Under the guidance of the guide plates 62 on both sides of the guide frame 61, the fine soil particles scattered from the shaking table 2 can be scattered on both sides of the inside of the receiving frame 3. The multi-point discharge is achieved through the drainage action of the guide member 6, which is conducive to the dispersion of the soil in the receiving frame 3.

[0045] A method for treating contaminated soil by co-disposing of contaminated soil in a cement kiln comprises the following steps:

[0046] Step 1: Add the contaminated soil to be treated into the housing 1, and use the drying component to dry the initial soil so that the moisture of the soil evaporates and is dried;

[0047] Step 2: the dried soil is crushed by a crushing assembly to obtain fine dried soil particles;

[0048] In step three, the dried soil particles crushed by the crushing assembly fall into the shaking table 2, and the shaking table 2 is continuously shaken in the shell 1 driven by the driving assembly 4, so that the crushed dried soil particles can be screened. Specifically, the output shaft of the driving unit 44 drives the first power arm 41 to rotate, and then the second power arm 42 reciprocates to push and pull the shaking table 2, so that the shaking table 2 reciprocates around the first rotating shaft 81, so that the soil particles falling into the shaking table 2 are fully screened through the screen 22, and the screened fine soil particles directly enter the receiving frame 3 through the guide plate 62 of the guide member 6, and the larger dried soil particles are further ground and pressed by the abrasive assembly 7 in cooperation with the shaking shaking table 2, and after being refined, they enter the discharge assembly 5 through the guide member 6. This process is specifically as follows: when the shaking table 2 swings around the first rotating shaft 81, since the second power arm 42 is fixedly connected to the rotating rod 71, the rotating The speed difference between the rod 71 and the shaking table 2 causes the fan-shaped block 72 to swing relatively in the shaking table 2, and then the first grinding blocks 73 on both sides of the bottom of the fan-shaped block 72 and the second grinding blocks 25 on both sides of the bottom of the shaking table 2 are pressed to grind the larger soil particles, and the stirring assembly 8 in the guide member 6 cooperates with the shaking shaking table 2 to stir the soil particles at the bottom discharge port of the shaking table 2 to prevent blockage. This process is specifically as follows: in the process of the shaking table 2 shaking around the first rotating shaft 81 as the center, the first rotating shaft 81 is driven to rotate by the meshing of the annular tooth 24 in the circular groove 23 and the second gear 85, and by the meshing of the second gear 85 and the first gear 82, and the rotation direction of the first rotating shaft 81 is always opposite to the shaking and swinging direction of the shaking table 2, so that the stirring rod 83 on the first rotating shaft 81 can stir the soil particles at the discharge port of the shaking table 2 to prevent the soil particles from blocking the discharge port;

[0049] Step 4: the discharge assembly 5, under the synchronous drive of the driving assembly 4, continuously pushes the dried soil particles discharged by the guide member 6 to the outside of the shell 1, and screens out the fine soil particles again during the pushing process, and scatters them in the receiving frame 3 for collection. This process is specifically as follows: the guide frame 61 of the guide member 6 scatters the soil particles discharged from the feeding port of the shaking table 2 in the cylinder 51 through the receiving port 52, the output shaft of the driving unit 44 drives the first pulley 43 to rotate, and under the transmission action of the transmission belt, the roller shaft 53 is driven to rotate through the second pulley 54. The soil particles in the cylinder 51 are pushed to the end where the discharge port 56 is located by the spiral blade 55 and sent out of the shell 1. The soil particles being pushed can be further screened through the filter holes at the bottom of the cylinder 51, and the fine soil particles are scattered in a row in the middle of the receiving frame 3. The fine soil particles scattered by the shaking table 2 can be scattered on both sides of the inside of the receiving frame 3 by the drainage of the guide plates 62 on both sides of the guide frame 61. Multi-point feeding is achieved through the drainage effect of the guide member 6, which is conducive to the dispersion of the soil in the receiving frame 3.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cement kiln collaborative disposal device for contaminated soil, comprising a shell (1), a drying component for drying soil added to the shell (1), and a crushing component for crushing the dried soil, characterized in that: A shaking table (2) for receiving soil crushed by the crushing assembly is arranged inside the shell (1), a driving assembly (4) for driving the shaking table (2) to shake back and forth is arranged outside the shell (1), a discharge port is arranged at the bottom of the shaking table (2), and a guide member (6) is arranged below the discharge port to guide small dry soil particles screened by the shaking of the shaking table (2) to both sides, and a guide member (6) is arranged below the guide member (6) to guide the dry soil discharged from the shaking table (2) under the synchronous drive of the driving assembly (4). A discharge assembly (5) is provided for discharging large particles of dried soil out of the housing (1); a grinding assembly (7) is provided in the shaking table (2) for grinding and pressing the dried soil particles in cooperation with the shaking table (2); a stirring assembly (8) is provided in the material guide (6) for stirring the dried soil particles in cooperation with the shaking table (2); and a receiving frame (3) is provided on the inner side of the bottom of the housing (1) for collecting small particles of dried soil discharged by the material guide (6) and the discharge assembly (5); The driving assembly (4) comprises a driving unit (44), the driving unit (44) being fixed on the outer wall of the housing (1), a first pulley (43) and a first power arm (41) being fixed on the output shaft of the driving unit (44), the length direction of the first power arm (41) being perpendicular to the output axis of the driving unit (44), the first pulley (43) and the output axis of the driving unit (44) being coincident, an end of the first power arm (41) away from the output shaft of the driving unit (44) being hinged to a second power arm (42), and an end of the second power arm (42) away from the first power arm (41) being hinged to the middle of the rocking table (2); The abrasive assembly (7) comprises a rotating rod (71), the rotating rod (71) being rotatably connected to the rocking table (2), one end of the rotating rod (71) passing through the outside of the rocking table (2) and being fixedly connected to the second power arm (42), a sector block (72) being fixed to the position of the rotating rod (71) located inside the rocking table (2), first grinding blocks (73) being symmetrically fixed to both sides of the bottom of the sector block (72), and second grinding blocks (25) being symmetrically fixed to both sides of the bottom of the bucket body of the rocking table (2).

2. The device for co-disposing contaminated soil by cement kiln according to claim 1, characterized in that: The upper part of the shaking table (2) is bucket-shaped, the lower part of the shaking table (2) is cylindrical, and the bottom is hollowed out to form a discharge port of the shaking table (2).

3. The device for co-disposing contaminated soil by cement kiln according to claim 2, characterized in that: The upper part of the shaking table (2) is provided with retaining edges (21) on both sides, the bottom of the shaking table (2) is hollowed out on both sides, and a screen (22) having a surface flush with the inner wall of the shaking table (2) is fixed at the hollowed-out part.

4. The device for co-disposing contaminated soil by cement kiln according to claim 1, characterized in that: The top of the second grinding block (25) is provided with an arc-shaped convex surface (251) that smoothly transitions to the end of the screen (22), and the bottom of the second grinding block (25) is provided with an arc-shaped concave surface (252) that matches the first grinding block (73).

5. The device for co-disposing contaminated soil by cement kiln according to claim 1, characterized in that: The material guide member (6) comprises a material guide frame (61), the material guide frame (61) being fixed in the housing (1), and material guide plates (62) distributed in a herringbone pattern being fixed on both sides of the material guide frame (61).

6. The device for co-disposing contaminated soil by cement kiln according to claim 5, characterized in that: The stirring assembly (8) comprises a first rotating shaft (81), the two ends of which pass through the shaking table (2) and the material guide frame (61) and are rotatably connected to the housing (1); a circular groove (23) is provided on the outer side surface of the cylindrical portion of the shaking table (2), an annular tooth (24) is fixed in the circular groove (23); a first gear (82) is fixed to the portion of the first rotating shaft (81) located in the annular tooth (24); a second rotating shaft (84) is rotatably connected to the inner side of the material guide frame (61), a second gear (85) meshing with the first gear (82) and the annular tooth (24) is fixed to the second rotating shaft (84); and a plurality of annularly distributed stirring rods (83) are fixed to the inner side of the cylindrical portion of the shaking table (2).

7. The device for co-disposing contaminated soil by cement kiln according to claim 1, characterized in that: The discharge assembly (5) comprises a cylinder (51), the cylinder (51) being fixed to the shell (1), one end of the cylinder (51) extending outside the shell (1), a material receiving port (52) being provided at the upper half of the cylinder (51) located inside the shell (1), a roller (53) being rotatably connected inside the cylinder (51), and the roller (53) being coaxially arranged with the cylinder (51), one end of the roller (53) passing through the cylinder (51) and the shell (1) and being fixed with a second pulley (54), the second pulley (54) being transmission-connected to the first pulley (43) via a transmission belt, a spiral blade (55) being fixed at the roller (53) located inside the cylinder (51), a material discharge port (56) being provided at the bottom of one end of the cylinder (51) located outside the shell (1), and a row of filter holes being arranged along the length direction of the cylinder (51) being provided at the bottom of the part of the cylinder (51) located inside the shell (1).

8. A method for treating contaminated soil by co-disposal of cement kilns, The device for co-disposing contaminated soil by cement kiln according to claim 1 is characterized in that: The following steps are involved: Step 1: Add the contaminated soil to be treated into the shell (1), and use the drying component to dry the initial soil so that the moisture in the soil evaporates and is dried; Step 2: the dried soil is crushed by a crushing assembly to obtain fine dried soil particles; Step 3: The dried soil particles crushed by the crushing component fall into the shaking table (2). The shaking table (2) is driven by the driving component (4) to continuously shake in the housing (1), so that the crushed dried soil particles can be screened. The screened fine soil particles directly enter the receiving frame (3) through the guide member (6). The grinding component (7) cooperates with the shaking shaking table (2) to further grind and press the larger dried soil particles. After being refined, the particles enter the discharge component (5) through the guide member (6). The stirring component (8) in the guide member (6) cooperates with the shaking shaking table (2) to stir the soil particles at the discharge port at the bottom of the shaking table (2) to prevent blockage. In step 4, the discharge component (5) is driven synchronously with the drive component (4) to continuously push the dried soil particles discharged by the guide member (6) to the outside of the housing (1), and in the process of pushing the materials, the fine soil particles are screened out again and scattered in the receiving frame (3) for collection.

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