Solid-liquid separation device for hazardous waste treatment

Abstract

The utility model discloses a solid-liquid separation device for hazardous waste treatment, and relates to the technical field of hazardous waste treatment, and the scheme is as follows: the solid-liquid separation device for hazardous waste treatment comprises a solid-liquid separation box body, and a waste feeding port is formed in the top end of the solid-liquid separation box body; a filtrate outlet is formed in the bottom end of the solid-liquid separation box body; the rotary drum penetrates through the waste feeding opening, the rotary drum is rotationally connected with the solid-liquid separation box body, and a plurality of positioning caulking grooves are formed in the inner wall of the top end of the rotary drum in the circumferential direction; a plurality of liquid drainage holes are formed in the surface of the separation filter cartridge, a plurality of embedded tenons are arranged on the outer wall of the top end of the separation filter cartridge in the circumferential direction, the separation filter cartridge can be embedded into the rotary drum, and the embedded tenons are clamped into the positioning caulking grooves respectively; the driving assembly can drive the rotary drum to rotate in the axial direction. The filter cartridge can be quickly disassembled and conveniently cleaned, the solid-liquid separation efficiency is remarkably improved, and the continuity and stability of hazardous waste treatment are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of hazardous waste treatment technology, specifically to a solid-liquid separation device for hazardous waste treatment. Background Technology

[0002] In the hazardous waste treatment industry, solid-liquid separation is a core step in ensuring safe and efficient disposal. The liquid components of hazardous waste often contain pollutants such as heavy metal ions, toxic organic solvents, and highly corrosive acids and alkalis. If not separated, these harmful substances can easily pollute water bodies and the atmosphere through soil infiltration and runoff diffusion. For example, the leakage of waste liquid containing mercury or cadmium will pose a long-term threat to groundwater safety, causing irreversible ecological damage. Simultaneously, toxic liquids adsorbed on solid surfaces can be released secondaryly under environmental influences, exacerbating the pollution risk.

[0003] A solid-liquid separation device for hazardous waste treatment, disclosed in authorization announcement number (CN222218853U), includes a treatment tank and a solid-liquid separation assembly. A drain outlet is embedded in the bottom left outer wall of the treatment tank. The solid-liquid separation assembly includes a filter cartridge and an outer sleeve. The outer sleeve is fixedly fitted onto the outer side of the middle portion of the filter cartridge, and the top of the filter cartridge is connected to the treatment tank via a bearing connection. In use, the hazardous waste requiring solid-liquid separation is first added to the inside of the filter cartridge, and the mesh structure of the filter cartridge facilitates solid-liquid separation.

[0004] The structure disclosed in this patent has defects in practical applications, specifically as follows: In the hazardous waste solid-liquid separation device, an outer sleeve is fixedly fitted around the middle of the filter cartridge, and the top of the filter cartridge is rotatably connected to the processing box via a bearing, causing the effective filtration area of ​​the filter cartridge to be completely built into the processing box. When processing fibrous and viscous substances, these substances easily entangle and adhere to the surface and pores of the filter cartridge, causing blockage. Once blocked, operators need to clean and maintain the filter cartridge. However, due to the filter cartridge being fixedly installed inside the processing box, the operating space is extremely narrow, the cleaning process is complex and inefficient, not only significantly increasing manual maintenance costs but also easily leading to prolonged equipment downtime. This seriously affects the continuity and processing efficiency of hazardous waste solid-liquid separation operations, and reduces the stability and reliability of system operation. Utility Model Content

[0005] The purpose of this utility model is to provide a solid-liquid separation device for hazardous waste treatment. It addresses the problems in the existing technology where the filter cartridge is fixedly installed inside the treatment tank, resulting in limited operating space and cumbersome processes during cleaning and maintenance, leading to poor continuity of solid-liquid separation operations and low treatment efficiency. The device provides a solution that enables quick disassembly and convenient cleaning of the filter cartridge, significantly improving solid-liquid separation efficiency and ensuring the continuity and stability of hazardous waste treatment.

[0006] This utility model is achieved through the following technical solution:

[0007] A solid-liquid separation device for hazardous waste treatment includes: a solid-liquid separation chamber with a waste inlet at the top and a filtrate outlet at the bottom; a rotating drum passing through the waste inlet and rotatably connected to the solid-liquid separation chamber, with multiple positioning grooves along the circumferential direction on the inner wall of the top of the drum; a separation filter cylinder with multiple drainage holes on its surface and multiple engaging tenons along the circumferential direction on the outer wall of the top of the filter cylinder, allowing the filter cylinder to be embedded inside the rotating drum, with the multiple engaging tenons respectively engaging in the multiple positioning grooves; and a drive assembly connected to the rotating drum, capable of driving the rotating drum to rotate axially.

[0008] Furthermore, in this invention, at least one of the positioning grooves is equipped with a locking component at its top, which can lock the locking tenon in the positioning groove.

[0009] Furthermore, in this utility model, the above-mentioned fitting and locking assembly includes an elastic reset member, a fitting and locking pin, and an assembly groove formed at the top of the positioning groove; one end of the elastic reset member is connected to the bottom wall of the assembly groove, and the other end of the elastic reset member is connected to the fitting and locking pin; the fitting and locking pin is at least partially located outside the assembly groove, and the fitting and locking pin can lock the fitting tenon in the positioning groove.

[0010] Furthermore, in this utility model, the aforementioned locking pin includes a first linkage segment and a second linkage segment; one end of the first linkage segment is connected to the elastic reset member, and the other end of the first linkage segment is rotatably connected to the second linkage segment; a guide slope is provided on the second linkage segment away from the first linkage segment, and the guide slope can guide and cooperate with the locking tenon.

[0011] Furthermore, in this invention, the polygonal cross-section of the assembly groove and the outer contour of the second linkage segment are adapted to the inner contour of the assembly groove; wherein, the second linkage segment can be moved out of the assembly groove and can rotate axially relative to the first linkage segment, thereby adjusting the spatial position of the guide slope.

[0012] Furthermore, in this utility model, the aforementioned drive assembly includes a motor, a gear ring, a gear, and a mounting base; the mounting base is mounted on the solid-liquid separation tank, the motor is mounted on the mounting base, and the output end of the motor is connected to the gear; the gear ring is fitted onto the outside of the rotating drum, and the gear ring can mesh with the gear.

[0013] Furthermore, in this utility model, the inner wall of the waste inlet is provided with a rotating groove along the circumferential direction; the outer wall of the rotating cylinder is provided with a rotating guide block along the circumferential direction, the rotating guide block is engaged in the rotating groove, and the rotating cylinder can rotate relative to the waste inlet.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0015] 1. In this application, the separator filter cartridge is connected to the positioning groove on the inner wall of the rotating drum via a locking tenon, and can be easily pulled out of the rotating drum. When the drain hole becomes clogged due to the processing of fibrous or sticky substances, the operator can quickly remove the separator filter cartridge for cleaning, greatly improving maintenance efficiency. Simultaneously, after solid-liquid separation is completed, the separator filter cartridge can also be easily pulled out of the rotating drum to remove the intercepted solid waste.

[0016] 2. In this application, the second linkage section of the locking pin is provided with a guide slope. When installing and disassembling the filter cartridge, the operator can adjust the position of the guide slope by rotating the first and second linkage sections relative to each other. During installation, the guide slope can guide the locking tenon to smoothly engage into the positioning groove; during disassembly, it can also allow the locking tenon to smoothly disengage from the positioning groove. Even one person can easily complete the operation, improving operational efficiency. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 A perspective view of a solid-liquid separation device for hazardous waste treatment;

[0019] Figure 2 This is a partial schematic diagram of a solid-liquid separation device for hazardous waste treatment;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a three-dimensional view of the separation filter cartridge;

[0022] Figure 5 A cross-sectional view of the locking pin;

[0023] Figure 6 This is a cross-sectional view of the solid-liquid separation tank.

[0024] The attached diagram shows the markings and corresponding component names:

[0025] 1-Solid-liquid separation chamber, 2-Waste inlet, 3-Filtrate outlet, 4-Rotating drum, 5-Separation filter cartridge, 6-Positioning groove, 7-Gear ring, 8-Mounting base, 9-Motor, 10-Gear, 11-Drain hole, 12-Matching tenon, 13-Assembly groove, 14-Matching locking pin, 15-Elastic reset component, 16-Rotating groove, 17-Rotating guide block, 18-Second linkage section, 19-First linkage section, 20-Guide inclined surface. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0027] Example

[0028] Please refer to Figure 1 , Figure 4 and Figure 6 This utility model provides a solid-liquid separation device for hazardous waste treatment. Specifically, it includes a solid-liquid separation chamber 1, a rotating drum 4, a separation filter cartridge 5, and a drive assembly. The solid-liquid separation chamber 1 serves as the system carrier. A waste inlet 2 at the top of the chamber 1 is used for the initial loading of hazardous waste, while a filtrate outlet 3 at the bottom serves as the directional discharge outlet for the separated liquid waste. The rotating drum 4 passes through the waste inlet 2 and is rotatably connected to the solid-liquid separation chamber 1 via a rotating joint. The rotating drum 4 has a through-type design, with one end extending into the working space inside the solid-liquid separation chamber 1 and the other end exposed outside. Positioning grooves 6 evenly distributed along the circumferential direction on the inner wall of the top of the rotating drum 4 form a positioning and assembly interface with the separation filter cartridge 5.

[0029] As the core component for solid-liquid separation, the separating filter cartridge 5 has regularly arranged drainage holes 11 on its surface, forming a high-efficiency filtration channel. Multiple interlocking tenons 12 and multiple positioning grooves 6 on the outer wall of the top of the separating filter cartridge 5 form a mechanical interlocking structure, achieving gapless fastening assembly with the aid of gravity. This design ensures both the coaxial rotation of the separating filter cartridge 5 and the rotating drum 4 and facilitates quick disassembly and installation.

[0030] During operation, hazardous waste is fed into the top of the separation filter cartridge 5 and falls to the bottom of the cartridge under gravity, entering the separation space. After the drive assembly is activated, the rotating drum 4 drives the separation filter cartridge 5 to rotate at high speed. Under the action of centrifugal force, liquid components pass through the drain hole 11 into the bottom of the solid-liquid separation chamber 1 and are collected and processed through the filtrate outlet 3; solid substances remain inside the separation filter cartridge 5 due to centrifugal force and the interception effect of the filter cartridge 5. After the separation operation is completed and the centrifugal force field disappears, the operator can safely disassemble the separation filter cartridge 5 and use anti-pollution tools to remove the solid hazardous waste.

[0031] To address the potential clogging of the drain hole 11 caused by fibrous and highly viscous hazardous waste, this device supports the rapid disassembly of the separation filter cartridge 5. The separation filter cartridge 5 can be unblocked and maintained using specialized cleaning tools. Compared with traditional integrated separation equipment, this can effectively reduce downtime for maintenance, improve the system's continuous operation capability and processing efficiency, and meet the professional and efficient needs of hazardous waste treatment.

[0032] It should be noted that, in order to ensure the fully enclosed operation of the hazardous waste centrifugal separation process, a sealing component can be configured at the top of the separation filter cartridge 5, and a sealing component can also be installed between the rotating drum 4 and the waste inlet 2, to build a double leak-proof barrier and completely eliminate the possibility of liquid spillage.

[0033] Please refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 In some embodiments of this application, at least one positioning groove 6 is fitted with a locking assembly at its top. When the separating filter cartridge 5 is embedded inside the rotating drum 4, the circumferentially arranged locking tenons 12 on the outer wall of the separating filter cartridge 5 and the positioning groove 6 on the inner wall of the rotating drum 4 form a mechanical interlock. Under the power transmission of the drive assembly, the rotating drum 4 drives the separating filter cartridge 5 to rotate synchronously, realizing the centrifugal separation of hazardous waste. However, centrifugal force and equipment vibration can easily cause mechanical interference to the locking structure, which may cause relative displacement between the locking tenons 12 and the positioning groove 6, or even lead to connection failure.

[0034] When the separator filter cartridge 5 is installed inside the rotating drum 4, the locking assembly locks the locking tenon 12 into the positioning groove 6, thereby firmly securing the separator filter cartridge 5 inside the rotating drum 4. This design effectively resists the dynamic loads generated during centrifugation, ensuring that the separator filter cartridge 5 remains stable during high-speed rotation and preventing loose connections from affecting separation efficiency or causing safety hazards.

[0035] Specifically, the locking assembly consists of an elastic reset member 15, a locking pin 14, and an assembly groove 13. The assembly groove 13 is located at the top of the positioning groove 6, providing a mounting carrier for each component. The elastic reset member 15 uses a corrosion-resistant special spring. One end of the elastic reset member 15 is fixed to the bottom wall of the assembly groove 13, and the other end is connected to the locking pin 14, ensuring long-term stable operation under harsh working conditions. As the core actuator, the locking pin 14, under the action of the elastic reset member 15, normally extends out of the assembly groove 13, forming an initial locked standby state.

[0036] During the installation of the separator filter cartridge 5, the operator manually applies force to press the locking pin 14, causing it to retract into the assembly groove 13 against the elastic force of the elastic reset member 15. At this time, the elastic reset member 15 is in a compressed and energy-storing state. After the locking tenon 12 on the outer wall of the separator filter cartridge 5 is precisely aligned and engaged with the positioning groove 6 on the inner wall of the rotating cylinder 4, the operator removes the external force. The elastic reset member 15 immediately releases its stored elastic potential energy, driving the locking pin 14 to pop out quickly. The end of the locking pin 14 precisely rests above the locking tenon 12, forming a mechanical limiting structure that firmly restrains the locking tenon 12 within the positioning groove 6.

[0037] For example, the locking pin 14 is composed of a first linkage segment 19 and a second linkage segment 18, which are connected by a rotating joint to ensure that flexible relative rotation performance can be maintained under complex working conditions.

[0038] One end of the first linkage section 19 is rigidly connected to the elastic reset member 15, serving as the hub for power transmission; the other end of the first linkage section 19 is rotatably connected to the second linkage section 18, forming an adjustable mechanical transmission system. The end of the second linkage section 18 is provided with a guide slope 20, which adopts a streamlined curved surface design and forms a guiding fit structure with the fitting tenon 12. In the naturally extended state of the elastic reset member 15, the guide slope 20 protrudes outward from the assembly groove 13, in a ready-to-work posture.

[0039] During the installation of the separator filter cartridge 5, the operator simply rotates the first linkage section 19 and the second linkage section 18 to a preset angle, so that the guide slope 20 faces upward. When the locking tenon 12 is aligned with the positioning groove 6 and pressed down, the guide slope 20 decomposes the vertical pressure into a component force along the axial direction of the assembly groove 13. This component force drives the second linkage section 18 to overcome the resistance of the elastic reset member 15 and smoothly retract into the assembly groove 13, providing space for the complete insertion of the locking tenon 12. After the locking tenon 12 is precisely in place, the elastic reset member 15 immediately releases its stored energy, which drives the second linkage section 18 to pop out quickly through the first linkage section 19, positioning the second linkage section 18 above the locking tenon 12, forming a stable mechanical limiting barrier that effectively resists the dynamic load generated by centrifugal operation.

[0040] When disassembling the separator filter cartridge 5, the operator rotates the first linkage section 19 and the second linkage section 18 in the opposite direction to adjust the guide slope 20 downwards. As the separator filter cartridge 5 is lifted, the moment the engaging latch 12 contacts the guide slope 20, the slope again performs a force conversion, transforming the upward pulling force into a pushing force into the assembly groove 13, causing the second linkage section 18 to automatically retract and avoid the pull. This process requires no additional tools and can be completed quickly by simply rotating and pulling with one hand.

[0041] For example, the assembly slot 13 adopts a polygonal cross-section structure, and the outer contour of the second linkage segment 18 is machined to form a shape fit and size adaptation relationship with the inner contour of the assembly slot 13. On the one hand, when the second linkage segment 18 is embedded in the assembly slot 13, the geometric constraint formed by the polygonal contour effectively restricts its rotation around the axial direction, eliminates the angular deviation of the guide slope 20 caused by misoperation, and ensures the stability of the locking component in centrifugal operation; on the other hand, the tight contour adaptation significantly improves the movement guidance accuracy of the second linkage segment 18 in the slot, reduces shaking and displacement, and enhances the overall structural rigidity.

[0042] When the position of the guide ramp 20 needs to be adjusted, the operator applies external force to pull the second linkage section 18 axially out of the assembly groove 13. During this process, the elastic reset member 15 is simultaneously stretched and stores elastic potential energy. After the second linkage section 18 is completely freed from the constraint of the assembly groove 13, it can rotate freely relative to the first linkage section 19, adjusting the guide ramp 20 to the required angle. Subsequently, the second linkage section 18 is released, and the elastic reset member 15 immediately releases its stored energy, driving the second linkage section 18 to precisely reset along the axis of the assembly groove 13. In the natural state of the elastic reset member 15, the guide ramp 20 protrudes outward from the assembly groove 13, and the second linkage section 18 is partially embedded in the groove, forming a stable standby working position, providing reliable support for the rapid installation and disassembly of the separator filter cartridge 5.

[0043] The first linkage segment 19 and the second linkage segment 18 can be rotatably connected by means of pin connection, bearing connection, ball joint connection, etc. These connection methods are common knowledge to those skilled in the art, and therefore will not be described in detail here. Based on the rotational function provided by the above connection methods, the second linkage segment 18 can move inside and outside the assembly groove 13, and can rotate axially relative to the first linkage segment 19, thereby realizing flexible adjustment of the spatial position of the guide slope 20.

[0044] Please refer to Figure 1 In some embodiments of this application, the mounting base 8 serves as a stable support for the drive assembly and is securely mounted on the solid-liquid separation tank 1. The motor 9, as a power source, is mounted on the mounting base 8. The output end of the motor 9 is connected to the gear 10, such as via a keyed or splined connection, ensuring lossless power transmission to the gear 10. The gear ring 7 is tightly fitted onto the outside of the rotating drum 4, and the two are integrated through an interference fit or other reliable connection method. The tooth profile parameters of the gear ring 7 are precisely matched to those of the gear 10. When the motor 9 drives the gear 10 to rotate, the gear 10 and the gear ring 7 achieve smooth and efficient meshing transmission, smoothly transmitting power to the rotating drum 4, causing the rotating drum 4 to rotate at high speed and stably.

[0045] Please refer to Figure 6 In some embodiments of this application, a rotating groove 16 is formed around the inner wall of the waste inlet 2 in a circumferential direction. The rotating groove 16 undergoes a fine surface treatment process, such as grinding and polishing, to achieve an extremely low surface roughness, thereby greatly reducing the friction force when the rotating drum 4 rotates. A rotating guide block 17 is securely installed on the outer wall of the rotating drum 4 along the circumferential direction. The shape of the rotating guide block 17 is precisely designed and machined according to the contour of the rotating groove 16.

[0046] The rotating guide block 17 and the rotating groove 16 engage precisely, forming a highly efficient mating structure with guiding and positioning functions. This engagement method not only gives the rotating drum 4 the ability to rotate flexibly relative to the waste inlet 2, but also precisely constrains the rotation trajectory of the rotating drum 4, ensuring that the rotating drum 4 rotates strictly along the preset path.

[0047] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A solid-liquid separation device for hazardous waste treatment, characterized in that, include: A solid-liquid separation tank (1) is provided with a waste inlet (2) at the top and a filtrate outlet (3) at the bottom. Rotary drum (4), the rotary drum (4) passes through the waste inlet (2), the rotary drum (4) is rotatably connected to the solid-liquid separation box (1), and the inner wall of the top of the rotary drum (4) is provided with multiple positioning grooves (6) along the circumferential direction; The separation filter cartridge (5) has multiple drainage holes (11) on its surface. The outer wall of the top of the separation filter cartridge (5) is provided with multiple fitting tenons (12) along the circumferential direction. The separation filter cartridge (5) can be embedded inside the rotating cylinder (4). The multiple fitting tenons (12) are respectively engaged in the multiple positioning grooves (6). A drive assembly is connected to the rotating drum (4) and is capable of driving the rotating drum (4) to rotate axially.

2. The solid-liquid separation device for hazardous waste treatment according to claim 1, characterized in that, At least one of the positioning grooves (6) is fitted with a locking component at its top end, the locking component being capable of locking the locking tenon (12) within the positioning groove (6).

3. The solid-liquid separation device for hazardous waste treatment according to claim 2, characterized in that, The fitting and locking assembly includes an elastic reset member (15), a fitting and locking pin (14), and an assembly groove (13) opened at the top of the positioning groove (6); One end of the elastic reset member (15) is connected to the bottom wall of the assembly groove (13), and the other end of the elastic reset member (15) is connected to the fitting locking pin (14); The fitting locking pin (14) is at least partially located outside the assembly groove (13), and the fitting locking pin (14) is capable of locking the fitting tenon (12) in the positioning groove (6).

4. The solid-liquid separation device for hazardous waste treatment according to claim 3, characterized in that, The locking pin (14) includes a first linkage section (19) and a second linkage section (18); One end of the first linkage segment (19) is connected to the elastic reset member (15), and the other end of the first linkage segment (19) is rotatably connected to the second linkage segment (18); The second linkage segment (18) is provided with a guide slope (20) at a distance away from the first linkage segment (19), and the guide slope (20) can guide and cooperate with the fitting tenon (12).

5. The solid-liquid separation device for hazardous waste treatment according to claim 4, characterized in that, The cross-section of the assembly groove (13) is a polygon, and the outer contour of the second linkage segment (18) is adapted to the inner contour of the assembly groove (13). The second linkage segment (18) can be moved out of the assembly slot (13), and the second linkage segment (18) can rotate axially relative to the first linkage segment (19) to adjust the spatial position of the guide slope (20).

6. The solid-liquid separation apparatus for hazardous waste treatment according to any one of claims 1 to 5, characterized in that, The drive assembly includes a motor (9), a gear ring (7), a gear (10), and a mounting base (8); The mounting base (8) is mounted on the solid-liquid separation tank (1), the motor (9) is mounted on the mounting base (8), and the output end of the motor (9) is connected to the gear (10); The gear ring (7) is fitted onto the outside of the rotating cylinder (4), and the gear ring (7) can mesh with the gear (10).

7. The solid-liquid separation apparatus for hazardous waste treatment according to any one of claims 1 to 5, characterized in that, The inner wall of the waste inlet (2) is provided with a rotating groove (16) along the circumferential direction; A rotating guide block (17) is installed on the outer wall of the rotating drum (4) along the circumferential direction. The rotating guide block (17) is engaged in the rotating groove (16), and the rotating drum (4) can rotate relative to the waste inlet (2).

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