A soil remediation all-in-one machine internal particle crushing and mixing combination structure

Abstract

The application relates to a particle crushing and mixing combined structure in a soil remediation all-in-one machine, which comprises claw machine components, an upper crushing cutter roll, a middle crushing cutter roll and a lower crushing cutter roll arranged in sequence along the particle material flow direction, wherein the upper crushing cutter roll, the middle crushing cutter roll and the lower crushing cutter roll are arranged in a triangular shape in space, the upper crushing cutter roll adopts a cylindrical cutter roll, and the middle crushing cutter roll and the lower crushing cutter roll adopt baffle-shaped cutter rolls. Compared with the prior art, the particle crushing and mixing device in the traditional soil remediation all-in-one machine is changed from a single combination of each crushing cutter roll to a reasonable cutter roll combination, which is beneficial to greatly improving the uniformity and mixing quality of the particle mixing in the system under the premise of not damaging the soil and the crushing and mixing effect of the agent particles, and reducing the overall energy consumption of the mixing device.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of stirring mixing equipment, and relates to a particle breaking and mixing combined structure in a soil remediation all-in-one machine. BACKGROUND

[0002] Heavy metal pollution in soil has the characteristics of long-term, irreversibility and concealment. For a long time, domestic and foreign researchers have carried out a large amount of research on remediation technologies for heavy metal contaminated soil, which can be mainly divided into three categories: biological remediation, physical remediation and chemical remediation. As a kind of chemical remediation technology, solidification and stabilization technology is widely used in the disposal of various hazardous wastes. The essence of this technology is to use chemical agents to treat contaminated soil, which has the characteristics of rapidness, effectiveness, economy and the like. In recent years, this technology has been applied in the remediation of contaminated soil in mining areas.

[0003] The main equipment for solidification and stabilization treatment of heavy metal contaminated soil in mining areas is a soil breaking all-in-one machine, and a breaking and mixing system is the core equipment of the soil breaking all-in-one machine. The better the mixing effect of soil and agent particles, the better the remediation effect of the solidification and stabilization treatment of soil.

[0004] Chinese patent CN209109306U discloses a soil remediation breaking and mixing device, which comprises a shell, a breaking device and a mixing device. The breaking device is located at the upper part of the mixing device, and the breaking device comprises a first driving shaft and a soil cutting knife. The mixing device comprises a second driving shaft and a mixing hammer. The upper part of the shell is provided with an inlet. The particle breaking effect and operation convenience of the device in specific use still need to be improved. SUMMARY

[0005] The purpose of the present application is to provide a particle breaking and mixing combined structure in a soil remediation all-in-one machine.

[0006] The purpose of the present application can be achieved by the following technical solutions.

[0007] A particle breaking and mixing combined structure in a soil remediation all-in-one machine comprises claw machine assemblies, an upper breaking knife roller, a middle breaking knife roller and a lower breaking knife roller arranged in sequence along the flow direction of particle materials, wherein the upper breaking knife roller, the middle breaking knife roller and the lower breaking knife roller are arranged in a triangular shape in space, the upper breaking knife roller adopts a cylindrical knife roller, and the middle breaking knife roller and the lower breaking knife roller adopt baffle-shaped knife rollers.

[0008] Further, the upper breaking knife roller and the middle breaking knife roller, and the middle breaking knife roller and the lower breaking knife roller have partial overlaps in the projection along the horizontal direction, respectively.

[0009] Further, the middle breaking knife roller and the lower breaking knife roller are arranged in a left-right arrangement diagonal line design near the bottom position.

[0010] Further, the rotation directions of the middle and lower breaking knife rollers are opposite.

[0011] Further, the rotation directions of the middle and lower breaking knife rollers and their relative positions satisfy that, during operation, the granular materials in the area between the middle and lower breaking knife rollers are thrown upward.

[0012] Further, the claw machine assembly comprises a first knife roller shaft and a plurality of claw machine blade groups installed along the first knife roller shaft in axial direction, each claw machine blade group comprising a claw machine bracket and a plurality of claw machine blades installed on the claw machine bracket. Further, each claw machine blade group comprises 3-6 claw machine blades, the cutting edges of each claw machine blade pointing in the same clockwise or counterclockwise direction, and the central angles between adjacent claw machine blades being 60-120°.

[0013] Further, the cylindrical knife roller comprises a second knife roller shaft and a plurality of cylindrical knife roller blade groups installed along the second knife roller shaft in axial direction, each cylindrical knife roller blade group comprising a cylindrical knife roller bracket and a plurality of cylindrical knife roller blade bodies installed on the cylindrical knife roller bracket. Further, each cylindrical knife roller blade group comprises three to four cylindrical knife roller blade bodies with a diameter of 5-10 cm, and the central angles between adjacent cylindrical knife roller blade bodies being 90-120°.

[0014] Further, the baffle-shaped knife roller comprises a third knife roller shaft and a plurality of baffle-shaped knife roller blade groups installed along the third knife roller shaft in axial direction, each baffle-shaped knife roller blade group comprising a baffle-shaped knife roller bracket and a plurality of baffle-shaped knife roller blade bodies installed on the baffle-shaped knife roller bracket.

[0015] Further, each baffle-shaped knife roller blade group comprises 3-4 baffle-shaped knife roller blade bodies with a length of 15-25 cm and a width of 5-10 cm, and the central angles between adjacent baffle-shaped knife roller blade bodies being 90-120°.

[0016] Further, the upper, middle and lower breaking knife rollers are respectively 1.5-2 m, 1-1.5 m and 0.5-1 m away from the bottom discharge area.

[0017] Further, the rotation speed of the claw machine assembly is 100-200 rpm.

[0018] The rotation speeds of the cylindrical and baffle-shaped knife rollers are the same, being 500-900 rpm.

[0019] Further, the intervals between adjacent two claw machine blade groups, or two cylindrical knife roller blade groups, or two baffle-shaped knife roller blade groups are respectively 10-20 cm.

[0020] Further, the rotating direction and position of the claw machine assembly satisfy that the granular material falls into the upper crushing guide roller under the action of gravity and the stirring of the claw machine assembly.

[0021] It is found through research that the cylindrical crushing knife roller has good crushing effect, but the mixing effect of the granules is poor. The baffle-shaped knife roller can effectively improve the mixing effect of the granules, but the power is high, and the structure of the knife roller is easy to be damaged. In order to solve the defects of the crushing knife roller of the traditional soil remediation all-in-one machine, a granular crushing and mixing combined structure with excellent crushing and mixing effect in the soil remediation all-in-one machine is developed. In the crushing and mixing combined structure of the present application, the upper crushing knife roller adopts a cylindrical form, and the middle and lower crushing knife rollers adopt a baffle form. Under the premise of not significantly affecting the granular crushing effect and considering the power consumption, the mixing uniformity and mixing quality of the soil and the granular pesticide in the system are improved.

[0022] The core innovation of the present application lies in improving the combined form of the crushing knife rollers at the upper, middle and lower positions. At different positions, appropriate knife roller forms are designed based on the different purposes of each crushing knife roller. The upper crushing knife roller is closest to the claw machine, and should adopt a cylindrical form knife roller with better crushing effect on the granules and lower power consumption, and it is not suitable to adopt a baffle form which can cause the granules to splash. The middle and lower crushing knife rollers are closer to the device base, and in order to avoid the rapid sinking and accumulation of the granules due to gravity, they should be designed in the form of a baffle, which can enhance the contact area of the granules and the knife roller, enhance the rebound effect of the granules, enhance the mixing uniformity of the granules, and improve the mixing quality of the soil and the granular pesticide.

[0023] Before the stirring starts, the granular material starts from the upper position of the crushing and mixing combined structure, the soil is sent to the uppermost claw machine by the material belt at a certain speed to complete the pre-stirring. Under the action of gravity and the claw machine, the soil and the granular pesticide then fall into the upper crushing knife roller, the upper crushing knife roller drives the stirring blades to rotate clockwise, the middle crushing knife roller (baffle form) rotates counterclockwise, the soil and the granular pesticide start to mix uniformly, and the lower crushing knife roller (baffle form) rotates clockwise to further enhance the mixing of the granules. During the stirring process, the three knife roller shafts and the crushing knife rollers move relative to each other, and when the soil and the granular pesticide move to the rotating motion area of the knife roller shafts and the crushing knife rollers, the material produces a large tangential motion speed after being interacted by the two pairs of knife roller blades, and the position of the material changes constantly with the different motion speeds of the material. The soil and the granular material are subjected to strong convection and shear mixing under the joint action of the two pairs of knife roller blades. Finally, with the stirring and mixing of the blades, the material naturally settles to the bottom of the equipment under the action of gravity to achieve the unloading at the end of the mixing.

[0024] In the movement stirring process of each broken knife roll, the linear distance interval between the blades of the upper broken knife roll (cylindrical form) is large, which can make the soil and pesticide particles pre-stirred by the claw machine smoothly settle in the secondary stirring of the middle and lower broken knife rolls after the first stirring of the upper knife roll. The contact area of the middle and lower broken knife rolls (baffle form) with particles is greatly improved during stirring. Based on the special form of the baffle, the particles will rebound after falling on the baffle, preventing the particles from directly settling at the bottom, which can effectively enhance the broken mixing uniformity of the particles and the mixing quality of the particles.

[0025] The power of the cylindrical knife roll is much smaller than that of the baffle type knife roll, and the claw machine speed is reduced, so that the energy consumption of the whole soil mixing system is greatly reduced.

[0026] The force symmetry of the baffle-shaped knife roll is relatively good, and the load distribution is uniform. The symmetrical design of the middle and lower broken knife rolls left and right near the bottom can effectively play the role of uniform force of the baffle, so that the mixing quality of the soil and pesticide particles is greatly improved.

[0027] The particles flow along the baffle during the impact with the baffle, and during the stirring process of the middle and lower broken knife rolls, the particles do not immediately settle at the bottom of the equipment, but repeatedly rebound in the middle and lower broken knife rolls, which can enhance the broken mixing effect.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] 1) The shape of the broken knife roll is improved, and the middle and lower broken knife rolls in the form of baffle help to enhance the mixing and breaking effect of the soil and pesticide particles, so that the mixing uniformity and mixing quality of the soil and pesticide particles are greatly improved;

[0030] 2) The combination form of the upper, middle and lower broken knife rolls is reasonably designed, which is beneficial to greatly improving the mixing quality and mixing uniformity of the particles in the structure without damaging the breaking effect of the soil and pesticide particles.

[0031] 3) The rotation speed performance of each rotating mechanism is optimized, and the rotation speed is adjusted to the best state respectively, so that the mixing uniformity and mixing quality of the particles are best while saving the system energy consumption BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic view of the particle broken mixing combination structure in the soil remediation all-in-one machine of the present application;

[0033] Figure 2 It is a structural schematic view of the claw machine assembly;

[0034] Figure 3It is a structure schematic diagram of claw machine blade group;

[0035] Figure 4 It is a structure schematic diagram of cylindrical knife roll;

[0036] Figure 5 It is a structure schematic diagram of cylindrical knife roll blade group;

[0037] Figure 6 It is a structure schematic diagram of baffle-shaped knife roll;

[0038] Figure 7 It is a structure schematic diagram of baffle-shaped knife roll blade group;

[0039] Marked in the figure:

[0040] 1-claw machine assembly, 11-first knife roll shaft, 12-claw machine support, 13-claw machine blade;

[0041] 2-upper breaking knife roll, 21-second knife roll shaft, 22-cylindrical knife roll support, 23-cylindrical knife roll blade;

[0042] 3-middle breaking knife roll, 31-third knife roll shaft, 32-baffle-shaped knife roll support, 33-baffle-shaped knife roll blade;

[0043] 4-lower breaking knife roll. DETAILED DESCRIPTION

[0044] The present application will be described in detail below in conjunction with the drawings and specific embodiments. The embodiments are implemented on the premise of the technical scheme of the present application, and detailed implementation modes and specific operation processes are given, but the protection scope of the present application is not limited to the following embodiments.

[0045] In the following embodiments, if there is no special description of the function components or structures, it is indicated that they are all conventional components and structures adopted in the field to realize the corresponding functions.

[0046] In order to optimize the crushing and mixing effect of soil and pesticide particles and the like, the present application provides a particle crushing and mixing combination structure in a soil remediation all-in-one machine. The structure can be seen from Figures 1 to 7 as shown, including claw machine assembly, upper breaking knife roll, middle breaking knife roll and lower breaking knife roll arranged in sequence along the particle material flow direction, wherein the upper breaking knife roll, the middle breaking knife roll and the lower breaking knife roll are arranged in a triangular shape in space, the upper breaking knife roll adopts a cylindrical knife roll, and the middle breaking knife roll and the lower breaking knife roll adopt a baffle-shaped knife roll.

[0047] In some specific embodiments, please refer to Figure 1 as shown, the upper breaking knife roll and the middle breaking knife roll, and the middle breaking knife roll and the lower breaking knife roll have partial overlap in the projection along the horizontal direction, respectively.

[0048] In some specific embodiments, the middle breaking knife roll and the lower breaking knife roll are arranged in a left-right diagonal design near the bottom position.

[0049] In some specific embodiments, the rotation directions of the middle breaking knife roll and the lower breaking knife roll are opposite.

[0050] Further, the rotation directions of the middle breaking knife roll and the lower breaking knife roll and the relative positions thereof satisfy that, during operation, the particle materials in the region between the middle breaking knife roll and the lower breaking knife roll are driven upward and thrown back.

[0051] In some specific embodiments, the claw machine assembly comprises a first knife roll shaft, and a plurality of claw machine blade groups installed along the first knife roll shaft in axial direction, each claw machine blade group being composed of a claw machine support and a plurality of claw machine blades installed on the claw machine support. Further, each claw machine blade group is composed of 3-6 claw machine blades, the cutting edges of each claw machine blade pointing in the same clockwise direction or counterclockwise direction, and the central angles between adjacent claw machine blades being 60-120°.

[0052] In some specific embodiments, the cylindrical knife roll comprises a second knife roll shaft, and a plurality of cylindrical knife roll blade groups installed along the second knife roll shaft in axial direction, each cylindrical knife roll blade group being composed of a cylindrical knife roll support and a plurality of cylindrical knife roll blade bodies installed on the cylindrical knife roll support. Further, each cylindrical knife roll blade group is composed of three to four cylindrical knife roll blade bodies with a diameter of 5-10 cm, and the central angles between adjacent cylindrical knife roll blade bodies being 90-120°.

[0053] In some specific embodiments, the baffle-shaped knife roll comprises a third knife roll shaft, and a plurality of baffle-shaped knife roll blade groups installed along the third knife roll shaft in axial direction, each baffle-shaped knife roll blade group being composed of a baffle-shaped knife roll support and a plurality of baffle-shaped knife roll blade bodies installed on the baffle-shaped knife roll support. Further, each baffle-shaped knife roll blade group is composed of 3-4 baffle-shaped knife roll blade bodies with a length of 15-25 cm and a width of 5-10 cm, and the central angles between adjacent baffle-shaped knife roll blade bodies being 90-120°.

[0054] In some specific embodiments, the intervals between adjacent two claw machine blade groups, or two cylindrical knife roll blade groups, or two baffle-shaped knife roll blade groups are 10-20 cm.

[0055] In some specific embodiments, the rotation speed of the claw machine assembly is 100-200 rpm.

[0056] The rotation speeds of the cylindrical knife roll and the baffle-shaped knife roll are the same, being 500-900 rpm.

[0057] In some specific embodiments, the rotation direction and position of the claw machine assembly satisfy the following condition: the particulate material falls into the upper crushing guide roller under the action of gravity and the stirring action of the claw machine assembly.

[0058] Each of the above implementation methods can be implemented individually, or in any combination of two or more.

[0059] The above implementation methods will be described in more detail below with reference to specific embodiments.

[0060] Example 1:

[0061] like Figures 1 to 7 As shown in the figure, this embodiment provides a particle crushing and mixing combination structure in an integrated soil remediation machine. Its main body includes a crushing and mixing chamber, as well as a claw machine assembly, an upper crushing cutter roller, a middle crushing cutter roller and a lower crushing cutter roller located in the crushing and mixing chamber.

[0062] Please see again. Figure 1 As shown, the upper crushing cutter roller and the middle crushing cutter roller, as well as the middle crushing cutter roller and the lower crushing cutter roller, partially overlap in their horizontal projections. Specifically, the three are arranged in a triangular shape in space.

[0063] In this embodiment, the rotation directions of the intermediate crushing roller and the lower crushing roller are opposite. The rotation directions and relative positions of the intermediate and lower crushing rollers satisfy the following: during operation, the granular material in the area between the intermediate and lower crushing rollers is driven upwards and thrown back. The rotation direction and position of the claw assembly satisfy the following: under the influence of gravity and the stirring action of the claw assembly, the granular material falls into the upper crushing guide roller.

[0064] Please see again. Figure 2 and Figure 3 As shown, the gripper assembly includes a first cutter roller shaft and three sets of gripper blades spaced apart along the axial direction of the first cutter roller shaft. Each set of gripper blades consists of a gripper bracket and three gripper blades mounted on the gripper bracket. The interval between two adjacent gripper blade sets is 10-20cm. The blades of each gripper blade face a uniform clockwise or counterclockwise direction, and the central angle interval between adjacent gripper blades is 120°.

[0065] Please see again. Figure 4 and Figure 5 As shown, the cylindrical cutter roller includes a second cutter roller shaft and three sets of cylindrical cutter roller blades spaced apart along the axial direction of the second cutter roller shaft. Each set of cylindrical cutter roller blades consists of a cylindrical cutter roller support and four cylindrical cutter roller blades mounted on the cylindrical cutter roller support. The interval between two adjacent sets of cylindrical cutter roller blades is 10-20cm, and the central angle interval between two adjacent cylindrical cutter roller blades is 90°.

[0066] Please see again Figure 6 and Figure 7 As shown in FIG. 1, the baffle-shaped cutter roller comprises a third cutter roller shaft and three groups of baffle-shaped cutter blade groups which are installed along the axial direction of the third cutter roller shaft, each group of baffle-shaped cutter blade groups is composed of a baffle-shaped cutter roller support and a plurality of baffle-shaped cutter blade bodies which are installed on the baffle-shaped cutter roller support. In this embodiment, each group of baffle-shaped cutter blade groups is composed of four baffle-shaped cutter blade bodies which are cuboids with a length of 15-25 cm and a width of 5-10 cm. The central angles of adjacent two baffle-shaped cutter blade bodies are 90°. The intervals of adjacent two baffle-shaped cutter blade groups are 10-20 cm.

[0067] In this embodiment, the heights from the upper, middle and lower breaking cutter rollers to the bottom discharge area can be 1.5-2 m, 1-1.5 m and 0.5-1 m respectively. The rotating speed of the claw machine assembly is 100-200 rpm. The rotating speed of the cylindrical cutter roller and the baffle-shaped cutter roller is the same, which is 500-900 rpm.

[0068] The special working state of the crushing and mixing combination structure in the soil remediation all-in-one machine in this embodiment is set and simulated. In the special simulation, the particle sizes of the soil and the reagent particles are set to be 1.0 cm and 0.6 cm respectively. The different rotating speed combinations of the claw machine, the upper, middle and lower breaking cutter rollers are adjusted respectively. The mixing uniformity and mixing quality of the soil and the reagent particles are calculated. The specific results are summarized in Table 1.

[0069] The first special working state calculation of the crushing and mixing combination structure in the soil remediation all-in-one machine in this embodiment: in this special working state, the rotating speeds of the claw machine assembly and the upper, middle and lower breaking cutter rollers in the crushing device are set to be 100, 600, 600 and 600 rpm respectively. Through calculation, it is obtained that the mixing quality of the soil and the reagent particles is 95.9% under this kind of operating setting.

[0070] The second special working state calculation of the crushing and mixing combination structure in the soil remediation all-in-one machine in this embodiment: in this special working state, the rotating speeds of the claw machine and the upper, middle and lower breaking cutter rollers in the crushing structure are set to be 100, 150, 600 and 600 rpm respectively. Through calculation, it is obtained that the mixing quality of the soil and the reagent particles is 96.7% under this kind of operating setting.

[0071] Table 1 The mixing quality calculation results of soil-reagent (1.0 cm / 0.6 cm) in this embodiment

[0072]

[0073]

[0074] In order to better verify the superiority of the crushing and mixing combination structure of the present application, another comparative analysis is carried out on the cylindrical crushing knife roller or the baffle-shaped crushing knife roller alone. In the two combinations of the knife rollers, two optimal working conditions are selected for illustration.

[0075] The first combination form is to use only the baffle-shaped crushing knife roller. The first special working state calculation of the crushing and mixing combination structure in the soil remediation all-in-one machine in this comparative example is as follows: in this special working state, the rotating speeds of the internal claw machine assembly and the upper, middle and lower crushing knife rollers are set to 150, 300, 600 and 600 rpm, respectively. Through calculation, it is obtained that the soil and pesticide particle mixing quality is 79.1% under this running setting.

[0076] The second special working state calculation of the crushing and mixing combination structure in the soil remediation all-in-one machine in this comparative example is as follows: in this special working state, the rotating speeds of the internal claw machine assembly and the upper, middle and lower crushing knife rollers are set to 150, 300, 600 and 900 rpm, respectively. Through calculation, it is obtained that the soil and pesticide particle mixing quality is 80.2% under this running setting.

[0077] The second combination form is to use only the baffle-shaped crushing knife roller. The first special working state calculation of the crushing and mixing combination structure in the soil remediation all-in-one machine in this comparative example is as follows: in this special working state, the rotating speeds of the internal claw machine assembly and the upper, middle and lower crushing knife rollers are set to 150, 300, 600 and 600 rpm, respectively. Through calculation, it is obtained that the soil and pesticide particle mixing quality is 81.6% under this running setting.

[0078] The second special working state calculation of the crushing and mixing combination structure in the soil remediation all-in-one machine in this comparative example is as follows: in this special working state, the rotating speeds of the internal claw machine assembly and the upper, middle and lower crushing knife rollers are set to 150, 300, 600 and 900 rpm, respectively. Through calculation, it is obtained that the soil and pesticide particle mixing quality is 80.4% under this running setting.

[0079] Table 2: Mixing quality calculation results of soil-pesticide (1.0 cm / 0.6 cm) when other knife roller combinations work

[0080]

[0081] Overall, the application changes the single combination form of the particle crushing and mixing device in the traditional soil remediation all-in-one machine. The upper crushing roller adopts a cylindrical form, the middle crushing roller and the lower crushing roller adopt a baffle form, and the reasonably designed roller combination form is beneficial to greatly improving the uniformity and mixing quality of the particles in the system under the premise of not damaging the soil and the crushing and mixing effect of the particles, and reducing the overall energy consumption of the mixing device.

[0082] The above description of the embodiments is for the purpose of enabling a person of ordinary skill in the art to understand and use the application. Those skilled in the art can obviously make various modifications to these embodiments and apply the general principles described herein to other embodiments without having to undergo creative labor. Therefore, the application is not limited to the above embodiments, and improvements and modifications made by those skilled in the art without departing from the scope of the application should be within the scope of protection of the application.

Claims

1. A particle crushing and mixing combination structure for an integrated soil remediation machine, characterized in that, The device includes a claw machine assembly, an upper crushing cutter roller, a middle crushing cutter roller, and a lower crushing cutter roller arranged sequentially along the flow direction of the particulate material. The upper crushing cutter roller, the middle crushing cutter roller, and the lower crushing cutter roller are arranged in a triangular shape in space. The upper crushing cutter roller is a cylindrical cutter roller, and the middle crushing cutter roller and the lower crushing cutter roller are baffle-shaped cutter rollers. The upper crushing cutter roller and the middle crushing cutter roller, as well as the middle crushing cutter roller and the lower crushing cutter roller, partially overlap in their horizontal projections. The claw machine assembly includes a first cutter roller shaft and a plurality of claw machine blade groups installed at intervals along the axial direction of the first cutter roller shaft. Each claw machine blade group consists of a claw machine bracket and a plurality of claw machine blades installed on the claw machine bracket. The cylindrical cutter roller includes a second cutter roller shaft and a plurality of cylindrical cutter roller blade groups installed at intervals along the axial direction of the second cutter roller shaft. Each cylindrical cutter roller blade group consists of a cylindrical cutter roller support and a plurality of cylindrical cutter roller blade bodies installed on the cylindrical cutter roller support. The baffle-shaped cutter roller includes a third cutter roller shaft and a plurality of baffle cutter roller blade groups installed at intervals along the axial direction of the third cutter roller shaft. Each baffle cutter roller blade group consists of a baffle cutter roller bracket and a plurality of baffle cutter roller blade bodies installed on the baffle cutter roller bracket. The interval between two adjacent claw machine blade groups, or two cylindrical cutter roller blade groups, or two baffle cutter roller blade groups is 10-20cm. Each set of claw machine blades consists of 3-6 claw machine blades. The blades of each claw machine blade face the same clockwise or counterclockwise direction, and the central angle interval between adjacent claw machine blades is 60~120°. Each group of circular cutter roller blades consists of three to four cylindrical cutter roller blades with a diameter of 5-10cm, and the central angle interval between two adjacent cylindrical cutter roller blades is 90-120°. Each set of baffle roller blades consists of 3-4 rectangular baffle roller blades, each 15-25cm long and 5-10cm wide, with a central angle interval of 90-120° between adjacent baffle roller blades.

2. The particle crushing and mixing combination structure of the integrated soil remediation machine according to claim 1, characterized in that, The middle and lower crushing cutter rollers are arranged diagonally near the bottom.

3. The particle crushing and mixing combination structure of the integrated soil remediation machine according to claim 1, characterized in that, The intermediate crushing cutter roller and the lower crushing cutter roller rotate in opposite directions.

4. The particle crushing and mixing combination structure of the integrated soil remediation machine according to claim 3, characterized in that, The rotation direction and relative position of the intermediate crushing cutter roller and the lower crushing cutter roller satisfy the following condition: during operation, the granular material in the area between the intermediate crushing cutter roller and the lower crushing cutter roller is driven upward and thrown back.

5. The particle crushing and mixing combination structure of the integrated soil remediation machine according to claim 1, characterized in that, The upper crushing cutter roller, the middle crushing cutter roller, and the lower crushing cutter roller are respectively 1.5~2m, 1~1.5m, and 0.5~1m above the bottom unloading area.

6. The particle crushing and mixing combination structure of the integrated soil remediation machine according to claim 1, characterized in that, The rotational speed of the claw machine component is 100~200 rpm; The cylindrical cutter roller and the baffle-shaped cutter roller rotate at the same speed, which is 500~900 rpm.

7. The particle crushing and mixing combination structure of the integrated soil remediation machine according to claim 1, characterized in that, The rotation direction and position of the claw machine assembly satisfy the following condition: under the influence of gravity and the stirring action of the claw machine assembly, the particulate material falls into the upper crushing guide roller.

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