A soil chemical eluviation agent mixing and configuring device

Abstract

This application relates to the field of soil remediation agent preparation technology, and discloses a soil chemical leaching agent mixing and preparation device, including a base plate, support legs, a main mixing cylinder, a premixing cylinder, an automatic proportioning and feeding mechanism, and a mixing assembly; the support legs are fixedly installed on the top of the base plate; the main mixing cylinder is fixedly installed on the top of the support legs; the premixing cylinder is fixedly installed on the top of the main mixing cylinder, and the bottom of the premixing cylinder is connected to the main mixing cylinder; the automatic proportioning and feeding mechanism is set on the base plate and is used to transport various liquid and solid raw materials for preparing soil chemical leaching agents into the premixing cylinder in proportion. This application has the following advantages and effects: it can transport and accurately measure various liquid and solid raw materials, realize automatic feeding in proportion, achieve high proportioning accuracy, reduce manual labor intensity, reduce the risk of personnel contact with chemical agents, and improve the mixing effect and mixing uniformity, meeting the multi-component preparation requirements of soil chemical leaching agents.

Description

Technical Field

[0001] This application relates to the field of soil remediation agent preparation technology, and in particular to a soil chemical leaching agent mixing and preparation device. Background Technology

[0002] The core function of soil chemical leaching agents is to transfer pollutants from the solid phase to the liquid phase of soil through chemical reactions (such as desorption, chelation, dissolution, solubilization, or complexation), thereby achieving the remediation of contaminated soil. With the increasing demand for industrial contaminated site remediation, soil chemical leaching agents are mostly multi-component systems combining solid and liquid phases. In the production and preparation of soil chemical leaching agents, the requirements for the precision of raw material proportions, the uniformity of mixing, the efficiency of formulation, and safety are becoming increasingly stringent.

[0003] In existing technologies, the mixing and preparation of soil chemical leaching agents largely relies on manual weighing and feeding, resulting in low proportioning accuracy, errors, high labor intensity, and risks of personnel contact with chemicals. Furthermore, the mixing and stirring structures are relatively simple, prone to uneven mixing and dead zones, making it difficult to simultaneously meet the requirements for automatic proportioning and integrated mixing of multiple solid and liquid raw materials, leading to low mixing efficiency. Therefore, we propose a soil chemical leaching agent mixing and preparation device to solve the above problems. Summary of the Invention

[0004] The purpose of this application is to provide a soil chemical leaching agent mixing and preparation device that can achieve automatic feeding according to proportion, high proportioning accuracy, reduce manual labor intensity, reduce the risk of personnel contact with chemical agents, and improve mixing effect and mixing uniformity.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a soil chemical leaching agent mixing and preparation device, comprising a base plate, support legs, a main mixing cylinder, a premixing cylinder, an automatic proportioning and feeding mechanism, and a stirring and mixing component; the support legs are fixedly installed on the top of the base plate; the main mixing cylinder is fixedly installed on the top of the support legs; the premixing cylinder is fixedly installed on the top of the main mixing cylinder, and the bottom of the premixing cylinder is connected to the main mixing cylinder; the automatic proportioning and feeding mechanism is set on the base plate and is used to transport various liquid and solid raw materials for preparing the soil chemical leaching agent to the premixing cylinder in proportion; the automatic proportioning and feeding mechanism includes multiple sets of uniformly distributed liquid raw material feeding components and multiple sets of uniformly distributed solid raw material feeding components; the liquid raw material feeding components are used to transport the liquid raw materials for preparing the soil chemical leaching agent to the premixing cylinder, and the solid raw material feeding components are used to transport the solid raw materials for preparing the soil chemical leaching agent to the premixing cylinder; the stirring and mixing component is set on the main mixing cylinder and the premixing cylinder and is used to stir and mix the raw materials.

[0006] Optionally, the liquid raw material feeding assembly includes a liquid raw material storage cylinder, a liquid transfer pump, a suction pipe, an outlet pipe, and a liquid flow sensor; the liquid raw material storage cylinder is fixedly installed on the top of the base plate; the liquid transfer pump is fixedly installed on the top of the liquid raw material storage cylinder; one end of the suction pipe is fixedly connected to the suction end of the liquid transfer pump, and the other end of the suction pipe extends into the liquid raw material storage cylinder; one end of the outlet pipe is fixedly connected to the discharge end of the liquid transfer pump, and the other end of the outlet pipe extends into the premixing cylinder; the liquid flow sensor is fixedly installed on the outlet pipe.

[0007] Optionally, the top of the liquid raw material storage cylinder is provided with a liquid filling hole, a plug is installed in the internal thread of the liquid filling hole, and a fixing block is fixedly sleeved on the liquid outlet pipe, with one end of the fixing block being fixedly connected to the outer wall of the main mixing cylinder.

[0008] Optionally, the solid raw material feeding assembly includes a solid raw material storage cylinder, a solid raw material conveying pump, a suction pipe, a discharge pipe, and a solid flow sensor; the solid raw material storage cylinder is fixedly installed on the top of the base plate; the solid raw material conveying pump is fixedly installed on the top of the solid raw material storage cylinder; one end of the suction pipe is fixedly connected to the suction end of the solid raw material conveying pump, and the other end of the suction pipe extends into the solid raw material storage cylinder; one end of the discharge pipe is fixedly connected to the discharge end of the solid raw material conveying pump, and the other end of the discharge pipe extends into the premixing cylinder; the solid flow sensor is fixedly installed on the discharge pipe.

[0009] Optionally, the top of the solid raw material storage cylinder is provided with a feeding hole, a plug is installed in the internal thread of the feeding hole, and a fixing block is fixedly sleeved on the discharge pipe, with one end of the fixing block fixedly connected to the outer wall of the main mixing cylinder.

[0010] Optionally, the mixing assembly includes a vertical shaft, multiple premixing baffles, multiple stirring paddles, and a motor; the vertical shaft is rotatably installed inside the premixing cylinder, with its bottom end extending into the main mixing cylinder; multiple premixing baffles are all fixedly installed on the vertical shaft and are evenly distributed, and all the multiple premixing baffles are located inside the premixing cylinder; multiple stirring paddles are all fixedly installed on the vertical shaft and are evenly distributed, and all the multiple stirring paddles are located inside the main mixing cylinder; the motor is fixedly installed on the top of the premixing cylinder, and the output shaft end of the motor is fixedly connected to the top end of the vertical shaft.

[0011] Optionally, a bulk material hood located inside the main mixing cylinder is fixedly sleeved on the vertical shaft. The top of the bulk material hood is slidably attached to the inner wall of the top of the main mixing cylinder. The inner diameter of the bulk material hood decreases sequentially from top to bottom. The bulk material hood has multiple evenly distributed bulk material holes.

[0012] Optionally, a discharge pipe is fixedly installed at the bottom center of the main mixing cylinder, and an end cap is threaded onto the bottom end of the discharge pipe.

[0013] Optionally, a plug is fixedly installed on the bottom inner wall of the end cap, and the top of the plug slides through the discharge pipe.

[0014] Optionally, a plurality of concentration sensors are fixedly installed on the outer wall of the main mixing cylinder in a uniformly distributed manner, and the detection ends of the plurality of concentration sensors extend into the main mixing cylinder.

[0015] This application includes at least one of the following beneficial technical effects:

[0016] 1. This application designs multiple sets of liquid raw material feeding components and multiple sets of solid raw material feeding components, which can respectively transport and accurately measure multiple liquid raw materials and multiple solid raw materials, realize automatic feeding according to proportion, high proportion accuracy, no need for manual feeding, reduce labor intensity, reduce the risk of personnel contact with chemical agents, avoid large errors and low efficiency of manual proportioning, and meet the multi-component configuration requirements of soil chemical leaching agents.

[0017] 2. This application designs a premixing cylinder and a main mixing cylinder, and uses them in conjunction with a stirring and mixing component. This allows the raw materials to be initially dispersed and premixed in the premixing cylinder before being fully stirred in the main mixing cylinder, thereby improving the mixing effect and uniformity.

[0018] 3. The material hood and material outlet designed in this application can centrifugally disperse the premixed raw materials in the main mixing cylinder, making the raw materials more evenly distributed and further improving the mixing effect and mixing uniformity.

[0019] 4. This application is designed with multiple concentration sensors, which can accurately determine whether the concentration of soil chemical leaching agent is uniform, and ensure that the prepared soil chemical leaching agent meets the standards and is usable. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front-view stereoscopic structural diagram of this embodiment.

[0022] Figure 2 This is a top-view three-dimensional structural diagram of this embodiment.

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure in a partial cross-section of the main view in this embodiment.

[0024] Figure 4 This is a three-dimensional structural diagram of the liquid raw material feeding component.

[0025] Figure 5 This is a three-dimensional structural diagram of the solid material feeding component.

[0026] Figure 6 This is a three-dimensional structural diagram of the stirring and mixing component.

[0027] Figure 7 This is a three-dimensional structural diagram of the end cap and plug.

[0028] In the diagram, 1. Base plate; 2. Support leg; 3. Main mixing cylinder; 4. Premixing cylinder; 5. Liquid raw material feeding assembly; 51. Liquid raw material storage cylinder; 52. Liquid transfer pump; 53. Suction pipe; 54. Discharge pipe; 55. Liquid flow sensor; 56. Plug one; 57. Fixing block one; 6. Solid raw material feeding assembly; 61. Solid raw material storage cylinder; 62. Solid raw material transfer pump; 63. Suction pipe; 64. Discharge pipe; 65. Solid flow sensor; 66. Plug two; 67. Fixing block two; 7. Stirring and mixing assembly; 71. Vertical shaft; 72. Premixing baffle plate; 73. Stirring paddle; 74. Motor; 75. Distributing hood; 76. Distributing hole; 8. Discharge pipe; 9. End cap; 10. Plug column; 11. Concentration sensor. Detailed Implementation

[0029] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] See Figures 1-7 This application provides a soil chemical leaching agent mixing and preparation device, including a base plate 1, support legs 2, a main mixing cylinder 3, a premixing cylinder 4, an automatic proportioning and feeding mechanism, and a stirring and mixing assembly 7. The support legs 2 are fixedly installed on the top of the base plate 1; the main mixing cylinder 3 is fixedly installed on the top of the support legs 2; the premixing cylinder 4 is fixedly installed on the top of the main mixing cylinder 3, and the bottom of the premixing cylinder 4 is connected to the main mixing cylinder 3; the automatic proportioning and feeding mechanism is set on the base plate 1 and is used to transport various liquid and solid raw materials for preparing the soil chemical leaching agent to the premixing cylinder 4 in proportion. The automatic proportioning and feeding mechanism includes multiple sets of uniformly distributed liquid raw material feeding assemblies 5 and multiple sets of uniformly distributed solid raw material feeding assemblies 6. The liquid raw material feeding assemblies 5 are used to transport the liquid raw materials for preparing the soil chemical leaching agent to the premixing cylinder 4, and the solid raw material feeding assemblies 6 are used to transport the solid raw materials for preparing the soil chemical leaching agent to the premixing cylinder 4; the stirring and mixing assembly 7 is set on the main mixing cylinder 3 and the premixing cylinder 4 and is used to stir and mix the raw materials.

[0031] In this embodiment, the liquid raw material feeding assembly 5 includes a liquid raw material storage cylinder 51, a liquid transfer pump 52, a suction pipe 53, an outlet pipe 54, and a liquid flow sensor 55. The liquid raw material storage cylinder 51 is fixedly installed on the top of the base plate 1. The liquid transfer pump 52 is fixedly installed on the top of the liquid raw material storage cylinder 51. One end of the suction pipe 53 is fixedly connected to the suction end of the liquid transfer pump 52, and the other end of the suction pipe 53 extends into the liquid raw material storage cylinder 51. One end of the outlet pipe 54 is fixedly connected to the discharge end of the liquid transfer pump 52, and the other end of the outlet pipe 54 extends into the premixing cylinder 4. A flow sensor 55 is fixedly installed on the liquid outlet pipe 54. The liquid raw material storage cylinder 51 is used to hold one of the liquid raw materials for preparing the soil chemical leaching agent, such as water, acid and alkali solutions (dilute hydrochloric acid, dilute sulfuric acid, ammonia), oxidants (hydrogen peroxide, sodium persulfate solution, reducing solution), surfactants, and wetting agents. The liquid transfer pump 52 is used to transport the liquid raw material into the premixing cylinder 4, eliminating the need for manual feeding and reducing the risk of personnel coming into contact with chemical agents. The liquid flow sensor 55 is used to detect the amount of liquid raw material entering the premixing cylinder 4, ensuring the accuracy of the soil chemical leaching agent mixing.

[0032] In this embodiment, a liquid filling hole is provided at the top of the liquid raw material storage cylinder 51, and a plug 56 is installed in the internal thread of the liquid filling hole. A fixing block 57 is fixedly sleeved on the liquid outlet pipe 54. One end of the fixing block 57 is fixedly connected to the outer wall of the main mixing cylinder 3. The design of the liquid filling hole and the plug 56 is to facilitate the addition of liquid raw materials into the liquid raw material storage cylinder 51. The design of the fixing block 57 can enhance the stability of the liquid outlet pipe 54.

[0033] In this embodiment, the solid raw material feeding assembly 6 includes a solid raw material storage cylinder 61, a solid raw material conveying pump 62, a suction pipe 63, a discharge pipe 64, and a solid flow sensor 65. The solid raw material storage cylinder 61 is fixedly installed on the top of the base plate 1. The solid raw material conveying pump 62 is fixedly installed on the top of the solid raw material storage cylinder 61. One end of the suction pipe 63 is fixedly connected to the suction end of the solid raw material conveying pump 62, and the other end of the suction pipe 63 extends into the solid raw material storage cylinder 61. One end of the discharge pipe 64 is fixedly connected to the discharge end of the solid raw material conveying pump 62, and the other end of the discharge pipe 64 extends into the premixing cylinder 4. The solid flow sensor 65 is fixedly installed on the top of the solid raw material storage cylinder 61. The solid raw material storage cylinder 61, fixedly installed on the discharge pipe 64, is used to hold one of the solid raw materials for preparing soil chemical leaching agents, such as organic acids (citric acid, oxalic acid), chelating agents (disodium EDTA, DTPA), pH adjusters (sodium carbonate, sodium bicarbonate, sodium hydroxide granules), and solid additives (powdered surfactants, coagulants). The solid raw material conveying pump 62 is used to pump the solid raw materials into the premixing cylinder 4, eliminating the need for manual feeding and reducing the risk of personnel contact with chemical agents. The solid flow sensor 65 is used to detect the amount of solid raw material entering the premixing cylinder 4, ensuring the accuracy of the soil chemical leaching agent mixing.

[0034] In this embodiment, a feeding hole is provided at the top of the solid raw material storage cylinder 61, and a plug 66 is installed in the internal thread of the feeding hole. A fixing block 67 is fixedly sleeved on the discharge pipe 64. One end of the fixing block 67 is fixedly connected to the outer wall of the main mixing cylinder 3. The design of the feeding hole and the plug 66 is to facilitate the addition of solid raw materials into the solid raw material storage cylinder 61. The design of the fixing block 67 can enhance the stability of the discharge pipe 64.

[0035] In this embodiment, the mixing assembly 7 includes a vertical shaft 71, multiple premixing baffles 72, multiple stirring paddles 73, and a motor 74. The vertical shaft 71 is rotatably installed inside the premixing cylinder 4, and its bottom end extends into the main mixing cylinder 3. The multiple premixing baffles 72 are all fixedly installed on the vertical shaft 71 and are evenly distributed, and are all located inside the premixing cylinder 4. The multiple stirring paddles 73 are all fixedly installed on the vertical shaft 71 and are evenly distributed, and are all located inside the main mixing cylinder 3. The motor 74 is fixedly installed on the top of the premixing cylinder 4, and its output shaft is fixedly connected to the top of the vertical shaft 71. The motor 74 is used to drive the vertical shaft 71 to rotate. By using the vertical shaft 71 to drive the multiple premixing baffles 72 to rotate, the various solid or liquid raw materials entering the premixing cylinder 4 can be dispersed, achieving premixing of the raw materials. By using the vertical shaft 71 to drive the multiple stirring paddles 73 to rotate, all the raw materials in the main mixing cylinder 3 can be stirred and mixed evenly.

[0036] In this embodiment, a material hood 75 is fixedly sleeved on the vertical shaft 71 and located inside the main mixing cylinder 3. The top of the material hood 75 slides against the inner wall of the top of the main mixing cylinder 3. The inner diameter of the material hood 75 decreases from top to bottom. The material hood 75 has multiple evenly distributed material holes 76. The design of the material hood 75 and the material holes 76 can, on the one hand, collect the premixed raw materials falling from the premixing cylinder 4, and on the other hand, use the centrifugal force generated by the rotation of the material hood 75 to throw the premixed raw materials out from the multiple material holes 76, so that the premixed raw materials are evenly scattered in the internal space of the main mixing cylinder 3, laying the foundation for the uniform mixing of all raw materials and improving the uniformity and efficiency of the mixing of raw materials.

[0037] In this embodiment, a discharge pipe 8 is fixedly installed at the bottom center of the main mixing cylinder 3, and an end cap 9 is threaded onto the bottom end of the discharge pipe 8. The discharge pipe 8 and the end cap 9 are designed to discharge the prepared soil chemical leaching agent outside the main mixing cylinder 3.

[0038] In this embodiment, a plug 10 is fixedly installed on the bottom inner wall of the end cap 9. The top of the plug 10 slides through the discharge pipe 8. The plug 10 is used to block the discharge pipe 8. During the mixing process, it can prevent some raw materials from entering the discharge pipe 8 and not being fully mixed.

[0039] In this embodiment, multiple concentration sensors 11 are fixedly installed on the outer wall of the main mixing cylinder 3 in a uniformly distributed manner. The detection ends of the multiple concentration sensors 11 extend into the main mixing cylinder 3. The concentration sensors 11 are used to detect the concentration of the soil chemical leaching agent mixed and configured in the main mixing cylinder 3. By utilizing the synergistic effect of multiple concentration sensors 11, it is possible to accurately determine whether the concentration of the soil chemical leaching agent is uniform.

[0040] In this embodiment, it should be noted that the multiple liquid transfer pumps 52, multiple liquid flow sensors 55, multiple solid raw material transfer pumps 62, multiple solid flow sensors 65, motor 74, and multiple concentration sensors 11 are all electrically connected to an external controller, and the multiple liquid flow sensors 55, multiple solid flow sensors 65, and multiple concentration sensors 11 are all electrically connected to an external display screen. The wiring connection method, wiring diagram, and control method are mature technologies in the field. The appropriate model is selected according to the actual use. These are conventional technical means that can be reasonably selected and implemented by those skilled in the art based on their ordinary technical knowledge without creative labor. Therefore, they will not be described in detail here.

[0041] Based on the above structure, the working principle of the soil chemical leaching agent mixing and preparation device provided in this application is as follows:

[0042] The various solid raw materials required for preparing the soil chemical leaching agent are loaded into the corresponding solid raw material storage cylinder 61, and the various liquid raw materials are loaded into the corresponding liquid raw material storage cylinder 51. The multiple plugs 1 56 are sealed into the corresponding liquid filling holes in turn, and the multiple plugs 2 66 are sealed into the corresponding material filling holes in turn, thus completing the preparation work before preparation.

[0043] When preparing soil chemical leaching agents, firstly, multiple solid raw material conveying pumps 62 are started to operate. The corresponding solid raw materials are drawn from the corresponding solid raw material storage cylinder 61 through the corresponding suction pipe 63 and sent into the premixing cylinder 4 through the discharge pipe 64. During this process, the solid flow sensor 65 can monitor the feed amount of solid raw materials in real time. When the feed amount of solid raw materials reaches the set ratio, the operation of multiple solid raw material conveying pumps 62 is stopped in sequence, thus completing the precise automatic feeding of solid raw materials.

[0044] Next, multiple liquid transfer pumps 52 are started to operate, and the corresponding liquid raw materials are drawn from the corresponding liquid raw material storage cylinder 51 through the corresponding suction pipe 53 and sent into the premixing cylinder 4 through the liquid outlet pipe 54. During this process, the liquid flow sensor 55 can monitor the feed amount of liquid raw materials in real time. When the feed amount of liquid raw materials reaches the set ratio, multiple liquid transfer pumps 52 are stopped in sequence, thus completing the precise automatic feeding of liquid raw materials.

[0045] During the automatic feeding of solid and liquid raw materials, the motor 74 is controlled to operate. The output shaft of the motor 74 drives the vertical shaft 71 to rotate. The vertical shaft 71 drives multiple premixing baffles 72 to rotate inside the premixing cylinder 4. At the same time, the vertical shaft 71 drives multiple stirring paddles 73 and a material distribution hood 75 to rotate inside the main mixing cylinder 3. The rotation of the multiple premixing baffles 72 can initially disperse and premix the solid and liquid raw materials entering the premixing cylinder 4. The premixed raw materials fall into the material distribution hood 75. Using the centrifugal force generated by the rotation of the material distribution hood 75, the premixed raw materials are evenly thrown out from the material distribution hole 76 into the interior of the main mixing cylinder 3, so that the premixed raw materials are evenly distributed inside the main mixing cylinder 3. At the same time, the continuous stirring of the stirring paddles 73 can make all raw materials fully mixed and evenly mixed, eliminating dead corners.

[0046] During the mixing process, multiple concentration sensors 11 are used to detect the concentration and uniformity of the mixed soil chemical leaching agent at multiple points in real time. When the concentration of the mixed solution reaches a uniform level, the motor 74 is stopped, the end cap 9 at the bottom of the discharge pipe 8 is unscrewed, and the plug 10 is removed from the discharge pipe 8 along with the end cap 9. The prepared soil chemical leaching agent can then be smoothly discharged from the discharge pipe 8. After the discharge is completed, the next batch can be prepared and mixed according to the above steps.

[0047] The foregoing has provided a detailed description of the soil chemical leaching agent mixing and preparation device provided in this application. Specific embodiments have been used to illustrate the principles and implementation methods of this application. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A soil chemical eluate mixing arrangement, characterised in that, include: Base plate (1); The support leg (2) is fixedly installed on the top of the base plate (1); The main mixing cylinder (3) is fixedly installed on the top of the support leg (2); A premixing cylinder (4) is fixedly installed on the top of the main mixing cylinder (3), and the bottom of the premixing cylinder (4) is connected to the main mixing cylinder (3); An automatic proportioning and feeding mechanism is set on the base plate (1) and is used to transport various liquid raw materials and solid raw materials for preparing soil chemical leaching agents to the premixing cylinder (4) in proportion. The automatic proportioning and feeding mechanism includes multiple sets of uniformly distributed liquid raw material feeding components (5) and multiple sets of uniformly distributed solid raw material feeding components (6). The liquid raw material feeding components (5) are used to transport the liquid raw materials for preparing soil chemical leaching agents to the premixing cylinder (4), and the solid raw material feeding components (6) are used to transport the solid raw materials for preparing soil chemical leaching agents to the premixing cylinder (4). A stirring and mixing assembly (7) is disposed on the main mixing cylinder (3) and the premixing cylinder (4) for stirring and mixing the raw materials.

2. A soil chemical eluate mixing arrangement according to claim 1, wherein, The liquid raw material feeding assembly (5) includes: A liquid raw material storage cylinder (51) is fixedly installed on the top of the base plate (1); A liquid transfer pump (52) is fixedly installed on the top of the liquid raw material storage cylinder (51); The suction tube (53) is fixedly connected at one end to the suction end of the liquid transfer pump (52), and the other end of the suction tube (53) extends into the liquid raw material storage cylinder (51). One end of the outlet pipe (54) is fixedly connected to the discharge end of the liquid transfer pump (52), and the other end of the outlet pipe (54) extends into the premixing cylinder (4); A liquid flow sensor (55) is fixedly installed on the liquid outlet pipe (54).

3. A soil chemical eluate mixing arrangement according to claim 2, wherein, The top of the liquid raw material storage cylinder (51) is provided with a liquid filling hole, and a plug (56) is installed in the internal thread of the liquid filling hole. A fixing block (57) is fixedly sleeved on the liquid outlet pipe (54), and one end of the fixing block (57) is fixedly connected to the outer wall of the main mixing cylinder (3).

4. The soil chemical leaching agent mixing and preparation device according to claim 1, characterized in that, The solid raw material feeding assembly (6) includes: A solid raw material storage cylinder (61) is fixedly installed on the top of the base plate (1); A solid raw material conveying pump (62) is fixedly installed on the top of the solid raw material storage cylinder (61); The suction pipe (63) is fixedly connected at one end to the suction end of the solid raw material conveying pump (62), and the other end of the suction pipe (63) extends into the solid raw material storage cylinder (61). The discharge pipe (64) is fixedly connected at one end to the discharge end of the solid raw material conveying pump (62), and the other end of the discharge pipe (64) extends into the premixing cylinder (4); A solid flow sensor (65) is fixedly installed on the discharge pipe (64).

5. The soil chemical leaching agent mixing and preparation device according to claim 4, characterized in that, The top of the solid raw material storage cylinder (61) is provided with a feeding hole, and a plug (66) is installed in the internal thread of the feeding hole. A fixing block (67) is fixedly sleeved on the discharge pipe (64), and one end of the fixing block (67) is fixedly connected to the outer wall of the main mixing cylinder (3).

6. The soil chemical leaching agent mixing and preparation device according to claim 1, characterized in that, The stirring and mixing assembly (7) includes: A vertical shaft (71) is rotatably mounted inside the premixing cylinder (4), with the bottom end of the vertical shaft (71) extending into the main mixing cylinder (3); Multiple premixed spoilers (72) are fixedly installed on the vertical shaft (71) and are evenly distributed. The multiple premixed spoilers (72) are located inside the premixing cylinder (4). Multiple stirring paddles (73) are fixedly installed on the vertical shaft (71) and are evenly distributed. All of the stirring paddles (73) are located inside the main mixing cylinder (3). The motor (74) is fixedly installed on the top of the premixing cylinder (4), and the output shaft end of the motor (74) is fixedly connected to the top end of the vertical shaft (71).

7. The soil chemical leaching agent mixing and preparation device according to claim 6, characterized in that, A material hood (75) located inside the main mixing cylinder (3) is fixedly sleeved on the vertical shaft (71). The top of the material hood (75) slides against the inner wall of the top of the main mixing cylinder (3). The inner diameter of the material hood (75) decreases from top to bottom. The material hood (75) has multiple evenly distributed material holes (76).

8. The soil chemical leaching agent mixing and preparation device according to claim 1, characterized in that, A discharge pipe (8) is fixedly installed at the bottom center of the main mixing cylinder (3), and an end cap (9) is threaded onto the bottom end of the discharge pipe (8).

9. The soil chemical leaching agent mixing and preparation device according to claim 8, characterized in that, A plug (10) is fixedly installed on the bottom inner wall of the end cap (9), and the top of the plug (10) slides through the discharge pipe (8).

10. The soil chemical leaching agent mixing and preparation device according to claim 1, characterized in that, Multiple concentration sensors (11) are fixedly installed on the outer wall of the main mixing cylinder (3) in a uniformly distributed manner, and the detection ends of the multiple concentration sensors (11) extend into the main mixing cylinder (3).

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