A soil screening device for a mobile soil washing remediation plant

Abstract

The utility model provides a kind of soil screening device, comprising: screening device, crushing device, collection frame and conveying device;Screening device includes shell, stick component and buffer floor, stick component is fixedly installed in the inside of shell, buffer floor is fixedly installed in the inside of shell;Crushing device is set in the inside of shell, and crushing device is used to crush the unqualified material screened out by stick component;Collection frame is set in the inside of screening device.The utility model provides a kind of soil screening device, by crushing device, the unqualified material screened out by screening device is crushed, then is conveyed back to the feed inlet of screening device by conveying device, so that the unqualified material screened out by screening device is crushed and conveyed back to screen again to form cycle, so that the unqualified material screened out by screening device does not need to be stored, then unified crushing is carried out, time is saved, and work efficiency is increased.

Description

Technical Field

[0001] This utility model relates to the field of soil leaching and remediation, and in particular to a soil screening device. Background Technology

[0002] Soil leaching remediation is a remediation technology that involves injecting a specific leaching agent into contaminated soil. The leaching agent interacts with the pollutants in the soil through physicochemical reactions, transferring the pollutants from the surface of soil particles or pores to the liquid phase. The leachate is then separated, collected, and treated to achieve soil purification. Its core principle is to break the bond between pollutants and the soil matrix, transforming solid pollutants into a migratory liquid form for removal.

[0003] In existing technologies, soil leaching remediation can be achieved using mobile soil leaching remediation vehicles. These vehicles are equipped with pre-screening devices that screen the soil. Unqualified soil and other materials are conveyed and stored via belt conveyors, requiring subsequent crushing by crushing equipment before washing, thus reducing work efficiency.

[0004] Therefore, it is necessary to provide a new soil screening device to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a soil screening device that solves the technical problem in related technologies where the waiting time for treating substandard soil is too long, leading to reduced work efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides a soil screening device, including: a screening device, a crushing device, a collection frame, and a conveying device;

[0007] The screening device includes a shell, a bar assembly, and a buffer base plate. The bar assembly is fixedly installed inside the shell, and the buffer base plate is fixedly installed inside the shell.

[0008] The crushing device is located inside the shell and is used to crush the unqualified materials screened out by the bar assembly.

[0009] The collection frame is disposed inside the screening device;

[0010] The conveying device is located on one side of the housing and is used to convey the material discharged from the collection frame.

[0011] Preferably, the crushing device includes two drive motors and two crushing rollers. The two drive motors are fixedly installed on one side of the housing, and the two crushing rollers are rotatably connected to the inside of the screening device.

[0012] Preferably, the conveying device includes a conveying pipe, a rotating rod, a spiral blade, and a servo motor. The conveying pipe is fixedly installed on one side of the screening device, the rotating rod is rotatably connected to the inside of the conveying pipe, the spiral blade is fixedly connected to the surface of the rotating rod, and the servo motor is fixedly installed at one end of the conveying pipe.

[0013] Preferably, the output end surface of the drive motor is provided with a transmission component, and the transmission component is connected to a cleaning roller.

[0014] Preferably, the housing is provided with a vibration device, which includes a vibration motor and multiple reset components. The vibration motor is fixedly installed at the bottom of the collection frame, and the multiple reset components are also fixedly installed at the bottom of the collection frame.

[0015] Preferably, a connecting pad is fixedly installed at one end of the collection frame, and the other end of the connecting pad is fixedly installed inside the housing.

[0016] A mobile soil leaching remediation device includes a mobile unit, a conveyor belt, a mixing and feeding machine, a scrubbing machine, a dewatering device, and a soil screening device. The conveyor belt is fixedly installed on the top of the mobile unit, the mixing and feeding machine is fixedly installed on the top of the mobile unit, the scrubbing machine is fixedly installed on the top of the mobile unit, and the dewatering device is fixedly installed on the top of the mobile unit.

[0017] Compared with related technologies, the soil screening device provided by this utility model has the following beneficial effects:

[0018] This utility model provides a soil screening device. After crushing the unqualified materials screened by the screening device, the crushed materials are transported back to the feed inlet of the screening device by the conveying device. This process of crushing the unqualified materials screened by the screening device and then transporting them back for screening forms a cycle. This eliminates the need to store the unqualified materials screened by the screening device and then crush them uniformly, saving time and increasing work efficiency. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a first embodiment of a soil screening device provided by this utility model;

[0020] Figure 2 for Figure 1 The diagram shows the structure of the conveying device.

[0021] Figure 3 A schematic diagram of the structure of a second embodiment of a soil screening device provided by this utility model;

[0022] Figure 4 for Figure 3 A cross-sectional structural schematic diagram of the screening device shown;

[0023] Figure 5 A schematic diagram of the structure of the mobile soil washing and remediation equipment provided by this utility model.

[0024] The following are the labels in the diagram: 1. Screening device, 2. Crushing device, 21. Drive motor, 22. Crushing roller, 3. Collection frame, 4. Conveying device, 41. Conveying pipe, 42. Rotating rod, 43. Spiral blade, 44. Servo motor, 5. Transmission device, 6. Cleaning roller, 7. Vibration device, 71. Vibration motor, 72. Reset component, 8. Connecting pad, 9. Moving device, 10. Conveyor belt, 11. Mixing feeder, 12. Scrubbing machine, 13. Dewatering device. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] Please refer to the following: Figure 1 , Figure 2 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a soil screening device provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the conveying device.

[0028] A soil screening device includes: a screening device 1, a crushing device 2, a collection frame 3, and a conveying device 4;

[0029] The screening device 1 includes a housing 101, a bar assembly 102, and a buffer base plate 103. The bar assembly 101 is fixedly installed inside the housing 101, and the buffer base plate 103 is fixedly installed inside the housing 101.

[0030] The crushing device 2 is disposed inside the housing 101, and the crushing device 2 is used to crush the unqualified materials screened out by the bar assembly 102;

[0031] The collection frame 3 is disposed inside the screening device 1;

[0032] The conveying device 4 is disposed on one side of the housing 101, and the conveying device 4 is used to convey the material discharged from the collection frame 3.

[0033] Please refer to the following: Figure 2The screening device 1 includes a shell 101, a bar assembly 102, and a buffer base plate 103. One end of both the bar assembly 102 and the buffer base plate 103 is inclined downward. The bar assembly 102 is installed inside the pre-screening device and is arranged in a stepped manner. Compared with traditional screens, the bar assembly 102 is more conducive to material flow and separation. To further avoid clogging of the bar assembly, the buffer base plate 103 is set above the bar assembly. The buffer base plate 103 is used to buffer the soil feed and prevent large materials from directly contacting the bar assembly. The pre-screening device performs preliminary screening of the raw materials to remove larger impurities or particles, preparing for subsequent processing.

[0034] Crushing device 2 is a hammer crusher, used by screening device 1 to crush unqualified materials.

[0035] The conveying device 4 is a conveyor belt, which is used to transport the material crushed by the crushing device 2 to the inside of the screening device 1, where it is re-screened. This eliminates the need for storage before crushing, thus increasing work efficiency.

[0036] Please refer to the following: Figure 2 The crushing device 2 includes two drive motors 21 and two crushing rollers 22. The two drive motors 21 are fixedly installed on one side of the housing 101, and the two crushing rollers 22 are rotatably connected to the inside of the screening device 1.

[0037] The output ends of the two drive motors 21 are respectively connected to one end of the two crushing rollers 22 through couplings. After the two drive motors 21 are started, they drive the two crushing rollers 22 to rotate to one side, thereby crushing the unqualified materials screened out by the screening device 1.

[0038] Please refer to the following: Figure 1 , Figure 2 The conveying device 4 includes a conveying pipe 41, a rotating rod 42, a spiral blade 43, and a servo motor 44. The conveying pipe 41 is fixedly installed on one side of the screening device 1. The rotating rod 42 is rotatably connected to the inside of the conveying pipe 41. The spiral blade 43 is fixedly connected to the surface of the rotating rod 42. The servo motor 44 is fixedly installed at one end of the conveying pipe 41.

[0039] One side of the conveying pipe 41 is connected to one side of the screening device 1 through the feed pipe, so that the material collected by the collection frame 3 enters the interior of the conveying pipe 41.

[0040] The output end of the servo motor 44 is connected to one end of the rotating rod 42 via a coupling. After the servo motor 44 is started, it drives the rotating rod 42 to rotate to one side, thereby driving the spiral blade 43 to rotate to one side and conveying the material that enters the conveying pipe 41.

[0041] A discharge pipe is fixedly installed on one side of the conveying pipe 41. After the spiral blade 43 conveys the material to one side to a suitable position, it is discharged into the interior of the screening device 1 through the discharge pipe.

[0042] The working principle of the soil screening device provided by this utility model is as follows:

[0043] In use, the screening device 1 buffers the soil entering through the feed inlet of the housing 101 via the buffer bottom plate 103, and then slides to one side into the surface of the bar assembly 102. After the bar assembly 102 screens the incoming material, the unqualified material will enter the interior of the crushing device 2 through the discharge port at one end of the housing 101 to crush the material. The crushed material falls into the interior of the collection frame 3 and is discharged into the interior of the conveying device 4, and then conveyed to the interior of the screening device 1.

[0044] Compared with related technologies, the soil screening device provided by this utility model has the following beneficial effects:

[0045] This utility model provides a soil screening device. After the unqualified material screened by the screening device 1 is crushed by the crushing device 2, it is transported back to the feed inlet of the screening device 1 by the conveying device 4. Thus, the unqualified material screened by the screening device 1 is crushed and transported back for screening to form a cycle. Therefore, it is not necessary to store the unqualified material screened by the screening device 1 and then crush it uniformly, which saves time and increases work efficiency.

[0046] Second Embodiment

[0047] Please refer to the following: Figure 3 and Figure 4 Based on the soil screening device provided in the first embodiment of this application, the second embodiment of this application proposes another soil screening device. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0048] Specifically, the second embodiment of this application provides a soil screening device that differs in that it also includes a transmission component 5, which is disposed at the output end of the drive motor 21, and the transmission component 5 is connected to a cleaning roller 6.

[0049] The transmission component 5 is a synchronous belt with a synchronous pulley, a belt with a pulley, and a chain with a chain pulley. It is used to connect the drive motor 21 and the cleaning roller 6, so that when the drive motor 21 drives the crushing roller 22 to rotate to one side, the cleaning roller 6 rotates to one side. The cleaning roller 6 is a roller brush, which cleans the soil attached to the surface of the crushing roller 22.

[0050] Please refer to the following: Figure 4 The housing 101 is equipped with a vibration device 7, which includes a vibration motor 71 and multiple reset components 72. The vibration motor 71 is fixedly installed at the bottom of the collection frame 3, and the multiple reset components 72 are also fixedly installed at the bottom of the collection frame 3.

[0051] The other ends of the multiple reset pieces 72 are respectively fixedly installed on both sides of the inner wall of the housing 101, so as to make the collection frame 3 vibrate after the vibration motor 71 is started, so as to prevent the material collected inside the collection frame 3 from getting blocked and affecting the feeding.

[0052] Please refer to the following: Figure 4 One end of the collection frame 3 is fixedly installed with a connecting pad 8, and the other end of the connecting pad 8 is fixedly installed inside the housing 101.

[0053] The connecting pad 8 is used to prevent the material inside the collection frame 3 from falling into the gap between one end of the collection frame 3 and the screening device 1 when it is conveyed to one end.

[0054] The working principle of the soil screening device provided by this utility model is as follows:

[0055] In use, the vibration motor 71 is started to drive the collection frame 3 to vibrate, which in turn drives multiple reset parts 72 to retract, so that the material inside the collection frame 3 enters the inside of the conveying pipe 41.

[0056] Compared with related technologies, the soil screening device provided by this utility model has the following beneficial effects:

[0057] This utility model provides a soil screening device, which uses a vibration device 7 to vibrate the collection frame 3 to prevent the crushed material from falling into the collection frame 3 and causing blockage.

[0058] This utility model also provides a mobile soil washing and remediation device.

[0059] Please refer to the following: Figure 5 The mobile soil leaching remediation equipment includes a mobile device 9, a conveyor belt 10, a mixing and feeding machine 11, a scrubbing machine 12, a dewatering device 13, and a soil screening device as described in any one of the above. The conveyor belt 10 is fixedly installed on the top of the mobile device 9, the mixing and feeding machine 11 is fixedly installed on the top of the mobile device 9, the scrubbing machine 12 is fixedly installed on the top of the mobile device 9, and the dewatering device 13 is fixedly installed on the top of the mobile device 9.

[0060] The mobile device 9 is a truck used to tow the screening device 1, conveyor belt 10, mixing feeder 11, scrubbing machine 12, and dewatering device 13 for movement.

[0061] The conveyor belt 10 is used to transport qualified materials screened out by the screening device 1 into the interior of the mixing feeder 11.

[0062] The blades of the mixing feeder 11 are arranged in a bidirectional spiral pattern, and polyurethane scrapers are installed on the blades. The reverse spiral blades and the forward spiral blades work together to ensure that the soil is evenly mixed during the mixing process. A spray water pipe is installed on the upper part of the mixing feeder 11. The mixing feeder 11 is used for mixing and feeding, ensuring that the soil or materials can be effectively entered, mixed and transported so that the soil and leachate are fully mixed. A maintenance manhole is opened on the top of the circulating water tank, which is convenient for operators to inspect, clean or maintain the inside of the water tank. The built-in submersible pump provides water for scrubbing. The guardrail can prevent operators from accidentally falling from the circulating water tank during operation. A ladder is provided to facilitate operators to enter the equipment for maintenance and cleaning.

[0063] The mixing feeder 11 conveys the material into the scrubbing machine 12, which is a cylindrical soil scrubbing machine mainly used for scrubbing the material. The cleaned soil then enters the dewatering device 13.

[0064] The dewatering device 13 is a spiral sand washing machine, a wheel sand washing machine, or a vibrating stone washing machine, which separates building material particles from soil. After passing through the dewatering device 13, the soil is discharged through the conveyor belt 10 at the tail end of the moving device 9.

[0065] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A soil screening device, characterized in that, include: Screening devices, crushing devices, collection frames, and conveying devices; The screening device includes a shell, a bar assembly, and a buffer base plate. The bar assembly is fixedly installed inside the shell, and the buffer base plate is fixedly installed inside the shell. The crushing device is located inside the shell and is used to crush the unqualified materials screened out by the bar assembly. The collection frame is disposed inside the screening device; The conveying device is located on one side of the housing and is used to convey the material discharged from the collection frame.

2. The soil screening device according to claim 1, characterized in that, The crushing device includes two drive motors and two crushing rollers. The two drive motors are fixedly installed on one side of the housing, and the two crushing rollers are rotatably connected to the inside of the screening device.

3. The soil screening device according to claim 1, characterized in that, The conveying device includes a conveying pipe, a rotating rod, a spiral blade, and a servo motor. The conveying pipe is fixedly installed on one side of the screening device, the rotating rod is rotatably connected to the inside of the conveying pipe, the spiral blade is fixedly connected to the surface of the rotating rod, and the servo motor is fixedly installed at one end of the conveying pipe.

4. A soil screening device according to claim 2, characterized in that, The output end surface of the drive motor is provided with a transmission component, and the transmission component is connected to a cleaning roller.

5. A soil screening device according to claim 1, characterized in that, The housing is equipped with a vibration device, which includes a vibration motor and multiple reset components. The vibration motor is fixedly installed at the bottom of the collection frame, and the multiple reset components are also fixedly installed at the bottom of the collection frame.

6. A soil screening device according to claim 1, characterized in that, A connecting pad is fixedly installed at one end of the collection frame, and the other end of the connecting pad is fixedly installed inside the housing.

7. A mobile soil leaching remediation device, characterized in that, The device includes a mobile unit, a conveyor belt, a mixing and feeding machine, a scrubbing machine, a dewatering device, and a soil screening device as described in any one of claims 1-6. The conveyor belt is fixedly installed on the top of the mobile unit, the mixing and feeding machine is fixedly installed on the top of the mobile unit, the scrubbing machine is fixedly installed on the top of the mobile unit, and the dewatering device is fixedly installed on the top of the mobile unit.

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