Apparatus for preparing solid waste leaching solution

Abstract

The present invention relates to the technical field of solid waste testing. Disclosed is an apparatus for preparing a solid waste leaching solution. The apparatus for preparing a solid waste leaching solution comprises a base, a pretreatment mechanism, sample bottles, a cabinet, an overturn oscillation mechanism and a suction filtration device, wherein the pretreatment mechanism is arranged above the base and is used for weighing, crushing and sieving solid waste; the cabinet is arranged at the top of the base; the sample bottles and the overturn oscillation mechanism are both arranged on the inner side of the cabinet; and the sample bottles are used for containing crushed solid waste mixed with a leaching agent. By means of the apparatus for preparing a solid waste leaching solution, solid waste to be crushed is weighed synchronously while being fed into a treatment cylinder, without the need for transferring the solid waste after a crushing operation, thereby simplifying operation steps. Compared with some apparatuses that use mechanical arms for transferring, the present invention effectively reduces the manufacturing and usage costs, shortens the operation time, and improves the operation efficiency.

Description

A solid waste leachate preparation device Technical Field

[0001] This invention relates to the field of solid waste testing technology, and in particular to a solid waste leachate preparation device. Background Technology

[0002] Solid waste refers to solid waste materials generated during production, daily life, and other activities that cannot be reused or directly discharged into the natural environment. These wastes may contain hazardous substances, posing potential risks to the environment and human health. The management and treatment of solid waste is one of the important issues in environmental protection and sustainable development.

[0003] The solid waste leaching toxicity leaching method is one of the standardized testing methods used to assess the release potential of toxic substances in solid waste. This method is usually used to determine the degree of leaching of toxic substances (such as heavy metals, organic compounds, etc.) in solid waste under specific conditions in order to assess their potential harm to the environment and human health.

[0004] The leaching treatment of solid waste toxicity requires a series of operations such as crushing, weighing, leachate preparation, oscillating leaching, and filtration. Existing equipment, such as Chinese invention patent with publication number CN117463749A, discloses a solid waste toxicity leachate preparation system, which includes a weighing module for weighing the sample processed by the crushing and mixing modules, a flipping mixing module for conducting leaching experiments on the sample accurately weighed by the weighing module, and a pressure filter module for filtering the leachate processed by the flipping mixing module. This system not only avoids the risk of sample contamination from manual operation, but also greatly improves the accuracy and efficiency of the work through automation, and reduces the physical intensity of manual labor.

[0005] The aforementioned solid waste leaching toxicity leachate preparation system requires the use of a robotic arm to weigh the crushed sample, which increases equipment costs and hinders its promotion and use. Furthermore, it wastes a significant amount of time in the crushing and weighing steps, reducing the overall efficiency of the operation. Therefore, a solid waste leaching toxicity preparation device is provided to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a solid waste leachate preparation device that can solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a solid waste leachate preparation device, comprising a base, a pretreatment mechanism, a sample bottle, a chassis, a tilting and oscillating mechanism, and a filtration device;

[0008] The pretreatment unit is located above the machine base and is used to weigh, crush and screen solid waste;

[0009] The chassis is located on the top of the base, and the sample bottle and the oscillation mechanism are both located inside the chassis. The sample bottle is used to hold the solid waste mixed with the extractant after crushing, and the oscillation mechanism is used to oscillate the solid waste in the sample bottle.

[0010] A secondary chassis is connected to the side of the main chassis. The filtration device is located inside the secondary chassis and is used to perform filtration treatment on the leachate from the vibrated solid waste.

[0011] Preferably, the pretreatment mechanism includes an annular weighing sensor, a treatment cylinder, and a connecting seat. An annular weighing sensor with its sensing end horizontally facing upward is provided on the top of the housing. A treatment cylinder for holding solid waste is provided inside the annular weighing sensor. A horizontally distributed connecting seat is integrally formed on the outer wall of the middle section of the treatment cylinder, and the connecting seat overlaps the sensing end of the annular weighing sensor.

[0012] Preferably, the pretreatment mechanism further includes a bracket, a support, a motor A, and a crushing blade. The support is mounted on the top of the machine housing at the position behind the annular weighing sensor. The top of the support is parallel to the annular weighing sensor. A bracket is fixedly connected between the bottom of the annular weighing sensor and the support. The top of the support is equipped with a motor A whose output shaft is coaxially distributed with the processing cylinder. The output shaft of the motor A is fixedly connected to the crushing blade through a coupling. The crushing blade extends to the inside of the processing cylinder.

[0013] Preferably, the pretreatment mechanism further includes a screen and a sealing cover. The screen is detachably installed on the inner wall of the treatment cylinder near its bottom, and a sealing cover is detachably installed at the bottom opening of the treatment cylinder to close it. The solid waste to be crushed is fed into the treatment cylinder and weighed simultaneously, eliminating the need to transfer the solid waste after the crushing operation.

[0014] Preferably, the flipping oscillation mechanism includes a rotating shaft, V-shaped clamps A, V-shaped clamps B, and a motor B. The rotating shaft is rotatably connected between the inner walls of the two sides of the housing. Three sets of V-shaped clamps A and B arranged in a circular array are integrally connected to the outer wall of the rotating shaft. The V-shaped clamps A and B are symmetrically distributed with respect to the cross-section of the rotating shaft. The motor B is located on the outer wall of the housing and is located inside the auxiliary housing. The output shaft of the motor B is fixedly connected to one end of the rotating shaft through a coupling. The sample bottle is placed between each set of V-shaped clamps A and V-shaped clamps B.

[0015] Preferably, the flipping oscillation mechanism further includes a fixed seat, a movable seat, and a hand-tightening screw. Multiple sets of fixed seats are installed on the inner side of the V-shaped clamp B in a linear array. Movable seats are symmetrically distributed above the fixed seats near the V-shaped clamp A. Vertically arranged screw holes are opened on the surface of the V-shaped clamp A at positions opposite to each set of movable seats. A hand-tightening screw is threaded into the screw holes on the V-shaped clamp A. One end of the hand-tightening screw extends between the V-shaped clamp A and the V-shaped clamp B and is rotatably connected to the movable seat. The fixed seat and the movable seat can clamp the sample bottle inside.

[0016] Preferably, the filtration device includes a filtration apparatus, a liquid outlet pipe, a liquid extraction pipe, a discharge pipe, a sample outlet pipe, a storage opening, a sample inlet pipe, a lower cylinder, a flexible hose, a miniature cylinder, and a docking cylinder. The filtration apparatus is mounted on a secondary housing, and its output end is connected to the liquid outlet pipe. A lower cylinder is mounted on the top of the secondary housing, and a docking cylinder is positioned above it. Filter paper can be sandwiched between the lower cylinder and the docking cylinder. A flexible hose communicating with the interior of the docking cylinder is connected to the top of the docking cylinder, and the end of the flexible hose is connected to the liquid extraction pipe. The bottom end of the lower cylinder is connected to the input end of the filtration apparatus via a pipe. A miniature cylinder is also mounted on the top of the secondary housing. The free end of the cylinder is connected to the side wall of the docking cylinder. The front side of the auxiliary housing is integrally formed with a storage hole. The bottom of the sealing cap is connected to a discharge pipe that communicates with its interior. The outer wall of the sample bottle is connected to an inlet pipe and an outlet pipe that communicate with its interior near its top and bottom, respectively. Both the inlet pipe and the outlet pipe are equipped with solenoid valves. The outlet pipe can be connected to the inlet pipe on the sample bottle through a pipe. The side wall of the main housing near the auxiliary housing has an opening that extends to the inside of the auxiliary housing. The liquid extraction pipe extends to the inside of the main housing through the opening. The outlet pipe on the sample bottle can be connected to the liquid extraction pipe through a pipe.

[0017] Preferably, the surface of the chassis is integrally formed with an access opening, and a cover that can be movably connected to the access opening is provided on the chassis. The inside of the chassis is also provided with a heating component for heating and a cooling component for cooling. The temperature control component is embedded in the auxiliary chassis. The chassis is located between the pretreatment mechanism and the filtration device. Through the setting of the tumbling and oscillating mechanism, the solid waste mixed with leachate can be tumbled and oscillated to ensure the efficient leaching of harmful substances in the solid waste. During the tumbling and oscillation process, the sealable structure of the chassis and the temperature control of the heating and cooling components can further ensure the leaching rate and effect.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] (1) The solid waste leachate preparation equipment, through the setting of the pretreatment mechanism, feeds the solid waste to be crushed into the treatment cylinder and weighs it at the same time. There is no need to transfer the solid waste after the crushing operation, which simplifies the operation steps. Compared with some equipment that uses robotic arms for transfer, it effectively reduces manufacturing and use costs, shortens operation time, and improves operation efficiency. In addition, the separate and detachable structural design of the treatment cylinder, screen and other components makes it convenient to screen and discharge the solid waste after weighing and crushing, as well as to clean it. The structure is novel and practical, which is conducive to promotion and use.

[0020] (2) The solid waste leachate preparation equipment can perform tumbling and oscillation treatment on the solid waste mixed with leachate through the setting of the tumbling and oscillation mechanism, so as to ensure the efficient leaching of harmful substances in the solid waste. During the tumbling and oscillation process, the enclosed structure of the machine box and the temperature control treatment of the heating and cooling components can further ensure the leaching rate and effect. After oscillation, the mixture of solid waste and leachate in the sample bottle can also be filtered. The equipment is easy for operators to operate the whole set of solid waste leaching and toxicity leaching treatment operations. It has a high degree of automation, practicality and safety. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 is a perspective view of an embodiment of the present invention;

[0023] Figure 2 is a top view of an embodiment of the present invention;

[0024] Figure 3 is a cross-sectional view of an embodiment of the present invention;

[0025] Figure 4 is an enlarged view of part A in an embodiment of the present invention;

[0026] Figure 5 is an enlarged view of part B in an embodiment of the present invention;

[0027] Figure 6 is a side view of an embodiment of the present invention;

[0028] Figure 7 is a front view of an embodiment of the present invention;

[0029] Figure 8 is an enlarged view of part C in an embodiment of the present invention;

[0030] Figure 9 is a structural diagram of the auxiliary chassis according to an embodiment of the present invention;

[0031] Figure 10 is an enlarged view of part D in an embodiment of the present invention;

[0032] Figure 11 is a structural diagram of the processing cylinder according to an embodiment of the present invention.

[0033] Reference numerals: 1. Base; 2. Pre-processing mechanism; 21. Ring-shaped load cell; 22. Support; 23. Processing cylinder; 24. Overlapping seat; 25. Screen plate; 26. Support; 27. Motor A; 28. Crushing blade; 29. ​​Sealing cap; 3. Sample bottle; 4. Machine casing; 5. Tilting and oscillating mechanism; 51. Rotating shaft; 52. V-shaped clamp A; 53. V-shaped clamp B; 54. Fixed seat; 55. Movable seat; 56. Hand 57. Screw; 6. Motor B; 7. Auxiliary housing; 8. Housing cover; 9. Heating assembly; 10. Refrigeration assembly; 11. Filtering device; 12. Filtering instrument; 13. Liquid outlet pipe; 14. Liquid extraction pipe; 15. Discharge pipe; 16. Sample outlet pipe; 17. Storage opening; 18. Sample inlet pipe; 19. Lower cylinder; 100. Flexible hose; 1011. Miniature cylinder; 1012. Connecting cylinder; 13. Temperature control assembly. Detailed Implementation

[0034] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0038] Please refer to Figures 1-11. This invention provides a solid waste leachate preparation device, comprising: a base 1 and a pretreatment mechanism 2, the pretreatment mechanism 2 being located above the base 1 and used for weighing, crushing, and sieving solid waste; a sample bottle 3, a housing 4, and a vortexing mechanism 5, the housing 4 being located on top of the base 1, the sample bottle 3 and the vortexing mechanism 5 being located inside the housing 4, the sample bottle 3 being used to hold the crushed solid waste mixed with the leachate extractant, and the vortexing mechanism 5 being used to vortex and vibrate the solid waste inside the sample bottle 3; and a filtration device 10, a secondary housing 6 being connected to the side of the housing 4, the filtration device 10 being located inside the secondary housing 6 and used for filtration of the vibrated solid waste leachate.

[0039] The pretreatment mechanism 2 includes an annular weighing sensor 21, a processing cylinder 23, and a connecting seat 24. An annular weighing sensor 21 with its sensing end horizontally upwards is mounted on top of the housing 4. A processing cylinder 23 for holding solid waste is located inside the annular weighing sensor 21. A horizontally distributed connecting seat 24 is integrally formed on the outer wall of the middle section of the processing cylinder 23, and the connecting seat 24 overlaps the sensing end of the annular weighing sensor 21. The pretreatment mechanism 2 also includes a bracket 22, a support 26, a motor A27, and a crushing blade 28. A support 26 is mounted on the top of the housing 4 at a position behind the annular weighing sensor 21. The top of the support 26 is parallel to the annular weighing sensor 21. A bracket 22 is fixedly connected between the bottom of the annular weighing sensor 21 and the support 26. A motor A27 with its output shaft coaxially distributed with the processing cylinder 23 is mounted on the top of the support 26. The output shaft of A27 is fixedly connected to the crushing blade 28 via a coupling. The crushing blade 28 extends to the inside of the processing cylinder 23. The pre-processing mechanism 2 also includes a screen 25 and a sealing cover 29. The screen 25 is detachably installed on the inner wall of the processing cylinder 23 near its bottom. The sealing cover 29 is detachably installed at the bottom opening of the processing cylinder 23 to close it. With the setting of the pre-processing mechanism 2, the solid waste to be crushed is fed into the processing cylinder 23 and weighed simultaneously. There is no need to transfer the solid waste after the crushing operation, which simplifies the operation steps. Compared with some equipment that uses a robotic arm for transfer, it effectively reduces manufacturing and use costs, shortens operation time, and improves operation efficiency. In addition, the separate and detachable structural design of the processing cylinder 23, screen 25 and other components makes it convenient to screen and discharge the solid waste after weighing and crushing, as well as to clean it.

[0040] Secondly, the oscillation mechanism 5 includes a rotating shaft 51, V-shaped clamps A52 and B53, and a motor B57. The rotating shaft 51 is rotatably connected between the inner walls of both sides of the housing 4. Three sets of V-shaped clamps A52 and B53 arranged in a circular array are integrally connected to the outer wall of the rotating shaft 51. The V-shaped clamps A52 and B53 are symmetrically distributed with respect to the cross-section of the rotating shaft 51. The motor B57 is located on the outer wall of the housing 4, inside the auxiliary housing 6. The output shaft of the motor B57 is fixedly connected to one end of the rotating shaft 51 via a coupling. The sample bottle 3 is positioned between each set of V-shaped clamps A52 and B53. The surface of the housing 4 has an integrally formed loading / unloading opening, and a cover 7 is movably connected to the loading / unloading opening on the housing 4 to cover it. The inner side is also provided with a heating component 8 for heating and a cooling component 9 for cooling; the temperature control component 11 is embedded in the chassis 4; the chassis 4 is located between the pretreatment mechanism 2 and the filtration device 10. The flipping oscillation mechanism 5 also includes a fixed seat 54, a movable seat 55 and a hand-tightening screw 56. Multiple sets of fixed seats 54 are installed on the inner side of the V-shaped clamping plate B53 in a linear array. Movable seats 55 are symmetrically distributed with the fixed seats 54 at the position above the fixed seat 54 near the V-shaped clamping plate A52. Vertically arranged screw holes are opened on the surface of the V-shaped clamping plate A52 at the position opposite to each set of movable seats 55. The screw holes on the V-shaped clamping plate A52 are threaded with a hand-tightening screw 56. One end of the hand-tightening screw 56 extends between the V-shaped clamping plate A52 and the V-shaped clamping plate B53 and is rotatably connected to the movable seat 55.The filtration device 10 includes a filtration apparatus 101, an outlet pipe 102, a suction pipe 103, a discharge pipe 104, a sample outlet pipe 105, a storage opening 106, a sample inlet pipe 107, a lower cylinder 108, a flexible hose 109, a miniature cylinder 1010, and a docking cylinder 1011. The filtration apparatus 101 is mounted on the auxiliary housing 6. The output end of the filtration apparatus 101 is connected to the outlet pipe 102. The lower cylinder 108 is installed on the top of the auxiliary housing 6, and the docking cylinder 1011 is positioned above the lower cylinder 108. A filter can be placed between the lower cylinder 108 and the docking cylinder 1011. The top of the paper-connecting cylinder 1011 is connected to a flexible tube 109 that communicates with its interior. The end of the flexible tube 109 is connected to a liquid extraction pipe 103. The bottom end of the lower cylinder 108 is connected to the input end of the filter 101 via a pipe. The top of the auxiliary housing 6 is also equipped with a miniature cylinder 1010. The free end of the miniature cylinder 1010 is connected to the side wall of the connecting cylinder 1011. The front side of the auxiliary housing 6 is integrally formed with a storage opening 106. The bottom of the sealing cap 29 is connected to a discharge pipe 104 that communicates with its interior. The outer wall of the sample bottle 3 is located near its top and bottom. The sample bottle 3 is connected to an inlet pipe 107 and an outlet pipe 105, which are respectively connected to the internal parts of the sample bottle 3. Both the inlet pipe 107 and the outlet pipe 105 are equipped with solenoid valves. The outlet pipe 104 can be connected to the inlet pipe 107 on the sample bottle 3 via a pipe. An opening extending into the interior of the auxiliary housing 6 is provided on the side wall of the housing 4 near the auxiliary housing 6. The liquid extraction pipe 103 extends into the interior of the housing 4 through this opening. The outlet pipe 105 on the sample bottle 3 can be connected to the liquid extraction pipe 103 via a pipe. The fixed base 54 and the movable base 55 can clamp the sample bottle 3 within them. The sample bottle 3 can be rotated... The rotating oscillation mechanism 5 allows for the tumbling and oscillation of solid waste in the mixed leachate, ensuring efficient leaching of harmful substances. During the tumbling and oscillation process, the enclosed structure of the casing 4, along with the temperature control of the heating component 8, cooling component 9, and temperature control component 11, allows the leaching temperature within the casing 4 to be adjusted and maintained at a constant temperature, further guaranteeing the leaching rate and effect. After oscillation, the mixture of solid waste and leachate in the sample bottle 3 can also be filtered. The equipment is convenient for operators to perform the entire solid waste leaching and toxicity leaching treatment operation.

[0041] Operating method and working principle: The solid waste sample to be processed is sent into the processing cylinder 23. The ring weighing sensor 21 weighs the solid waste sample. After an appropriate amount of solid waste sample is added, the motor A27 drives the crushing blade 28 to crush the solid waste sample. The discharge pipe 104 is connected to the sample inlet pipe 107 above the sample bottle. Then the valve on the sample inlet pipe 107 is opened. After crushing, the sample falls into the sample bottle 3 through the sieve 25 with a hole diameter of 9.5 mm for collection.

[0042] After the solid waste sample in the treatment cylinder 23 is completely sieved, the volume of the extractant is calculated based on the weight and water content of the solid waste sample. Extractant #2 is selected with a liquid-to-solid ratio of 20:1L:KG. The extractant is a mixture of water and glacial acetic acid. 17.25ml of glacial acetic acid is diluted to 1L with reagent water. The extractant is then sent into the sample bottle 3 through the pipeline and mixed with the crushed solid waste sample.

[0043] Sample bottle 3 is placed between fixed seat 54 and movable seat 55 inside the machine box 4. The hand screw 56 is turned to drive the movable seat 55 to press down on sample bottle 3. Sample bottle 3 is clamped between fixed seat 54 and movable seat 55. The control motor B57 is started, which drives sample bottle 3 to flip. The solid waste sample mixed with leaching agent inside sample bottle 3 is shaken. At the same time, the box cover 7 is closed and the knob of temperature control component 11 is adjusted to ensure that the leaching temperature (23±2℃) is maintained inside the machine box 4.

[0044] After inversion and oscillation, the sample outlet pipe 105 at the bottom of sample bottle 3 is connected to the liquid extraction pipe 103 using a flexible tube. Then, using tweezers, a 0.6-0.8 μm microporous filter membrane is inserted between the lower cylinder 108 and the docking cylinder 1011. The free end of the micro cylinder 1010 is controlled to contract, causing the docking cylinder 1011 to descend and clamp the filter membrane. The vacuum filter 101 is controlled to perform vacuum filtration on the leachate of solid waste in sample bottle 3. The filtrate obtained by vacuum filtration is discharged through the liquid outlet pipe 102.

[0045] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A solid waste leachate preparation device, characterized in that, include: The machine base (1) and the pre-treatment mechanism (2) are located above the machine base (1) and are used to weigh, crush and screen solid waste. Sample bottle (3), machine box (4) and oscillation mechanism (5), the machine box (4) is located on the top of the machine base (1), the sample bottle (3) and the oscillation mechanism (5) are both located inside the machine box (4), the sample bottle (3) is used to hold the solid waste mixed with the extractant after crushing, and the oscillation mechanism (5) is used to oscillate the solid waste in the sample bottle (3); The filter device (10) is connected to the side of the housing (4) and the filter device (10) is located inside the housing (6) and is used to filter the leachate of the oscillated solid waste.

2. The solid waste leachate preparation equipment according to claim 1, characterized in that: The pretreatment mechanism (2) includes an annular weighing sensor (21), a treatment cylinder (23) and a connecting seat (24). An annular weighing sensor (21) with its sensing end facing upward is provided above the housing (4). A treatment cylinder (23) for holding solid waste is provided inside the annular weighing sensor (21). A horizontally distributed connecting seat (24) is integrally formed on the outer wall of the middle section of the treatment cylinder (23). The connecting seat (24) overlaps the sensing end of the annular weighing sensor (21).

3. The solid waste leachate preparation equipment according to claim 2, characterized in that: The pretreatment mechanism (2) also includes a bracket (22), a support (26), a motor A (27), and a crushing blade (28). The support (26) is mounted on the top of the housing (4) at the position behind the annular weighing sensor (21). The top of the support (26) is parallel to the annular weighing sensor (21). The bracket (22) is fixedly connected between the bottom of the annular weighing sensor (21) and the support (26). The top of the support (26) is provided with a motor A (27) whose output shaft is coaxially distributed with the processing cylinder (23). The output shaft of the motor A (27) is fixedly connected to the crushing blade (28) through a coupling. The crushing blade (28) extends to the inside of the processing cylinder (23).

4. The solid waste leachate preparation equipment according to claim 3, characterized in that: The pretreatment mechanism (2) also includes a screen (25) and a sealing cover (29). The screen (25) is detachably installed on the inner wall of the treatment cylinder (23) near its bottom, and the sealing cover (29) is detachably installed at the bottom opening of the treatment cylinder (23) to close it.

5. The solid waste leachate preparation equipment according to claim 1, characterized in that: The flipping oscillation mechanism (5) includes a rotating shaft (51), V-shaped clamp A (52), V-shaped clamp B (53) and a motor B (57). The rotating shaft (51) is rotatably connected between the inner walls of the two sides of the housing (4). Three sets of V-shaped clamp A (52) and V-shaped clamp B (53) arranged in a ring array are integrally connected to the outer wall of the rotating shaft (51). The V-shaped clamp A (52) and V-shaped clamp B (53) are symmetrically distributed with respect to the cross-section of the rotating shaft (51). The motor B (57) is provided on the outer wall of the housing (4). The motor B (57) is located inside the auxiliary housing (6). The output shaft of the motor B (57) is fixedly connected to one end of the rotating shaft (51) through a coupling. The sample bottle (3) is located between each set of V-shaped clamp A (52) and V-shaped clamp B (53).

6. The solid waste leachate preparation equipment according to claim 5, characterized in that: The flipping oscillation mechanism (5) also includes a fixed seat (54), a movable seat (55), and a hand-tightening screw (56). Multiple sets of fixed seats (54) are installed on the inner side of the V-shaped clamping plate B (53) in a linear array. Movable seats (55) are symmetrically distributed above the fixed seats (54) near the V-shaped clamping plate A (52). Vertically arranged screw holes are opened on the surface of the V-shaped clamping plate A (52) at positions opposite to each set of movable seats (55). The hand-tightening screw (56) is threaded into the screw holes on the V-shaped clamping plate A (52). One end of the hand-tightening screw (56) extends between the V-shaped clamping plate A (52) and the V-shaped clamping plate B (53) and is rotatably connected to the movable seat (55). The fixed seat (54) and the movable seat (55) can clamp the sample bottle (3) inside.

7. The solid waste leachate preparation equipment according to claim 4, characterized in that: The filtration device (10) includes a filtration unit (101), an outlet pipe (102), a suction pipe (103), a discharge pipe (104), a sample outlet pipe (105), a storage opening (106), a sample inlet pipe (107), a lower cylinder (108), a flexible tube (109), a miniature cylinder (1010), and a docking cylinder (1011). The filtration unit (101) is mounted on the auxiliary housing (6), and the output end of the filtration unit (101) is connected to the outlet pipe (108). 2) A lower cylinder (108) is installed on the top of the auxiliary housing (6). A connecting cylinder (1011) is set above the lower cylinder (108). Filter paper can be sandwiched between the lower cylinder (108) and the connecting cylinder (1011). A flexible tube (109) communicating with the inside of the connecting cylinder (1011) is connected to the top of the connecting cylinder (1011). A liquid extraction pipe (103) is connected to the end of the flexible tube (109). The bottom end of the lower cylinder (108) is connected to the input end of the vacuum filter (101) through a pipe. The top of the casing (6) is also equipped with a miniature cylinder (1010), the free end of which is connected to the side wall of the docking cylinder (1011). The front of the auxiliary casing (6) is integrally formed with a storage opening (106). The bottom of the sealing cap (29) is connected to a discharge pipe (104) that communicates with its interior. The outer wall of the sample bottle (3) is connected to an inlet pipe (107) and an outlet pipe (105) that communicate with its interior, respectively, near its top and bottom. Both the inlet pipe (107) and the outlet pipe (105) are equipped with solenoid valves. The outlet pipe (104) can be connected to the inlet pipe (107) on the sample bottle (3) through a pipe. The side wall of the chassis (4) near the auxiliary chassis (6) has an opening that extends to the inside of the auxiliary chassis (6). The liquid extraction pipe (103) extends to the inside of the chassis (4) through the opening. The outlet pipe (105) on the sample bottle (3) can be connected to the liquid extraction pipe (103) through a pipe.

8. The solid waste leachate preparation equipment according to claim 7, characterized in that: The surface of the chassis (4) is integrally formed with a pick-up and drop-off opening, and a cover (7) that can cover the pick-up and drop-off opening is movably connected to the chassis (4); the inside of the chassis (4) is also provided with a heating component (8) for heating and a cooling component (9) for cooling, and a temperature control component (11) is embedded in the auxiliary chassis (6). The chassis (4) is located between the pretreatment mechanism (2) and the filtration device (10).

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