Solid-liquid separator for filterable sludge

By designing a solid-liquid separator with an inverted conical liquid head and a spiral guide channel inside the tank, the problem of insufficient solid-liquid separation under high viscosity biogas slurry was solved, achieving efficient solid-liquid separation and filtration, and ensuring stable equipment operation.

CN224485278UActive Publication Date: 2026-07-14JIANGSU SUGANG QINGNENG BIOENERGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU SUGANG QINGNENG BIOENERGY CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Due to its high viscosity, biogas slurry results in insufficient solid-liquid separation, low filtration efficiency, and easy entry of solid particles into the liquid, leading to poor filtration and difficulty in purification.

Method used

A solid-liquid separator was designed, including a tank, a tank frame, a liquid pipe, a pump, a seepage channel, a conical liquid head, and a liquid level sensor. The liquid flow is guided by the inverted conical structure and spiral guide channel of the conical liquid head. Combined with the filtration structure of the seepage channel, solid-liquid separation is achieved. The liquid level sensor monitors the liquid level to control the operation of the pump.

Benefits of technology

It improves solid-liquid separation efficiency, effectively intercepts solid particles, ensures filtration effect, ensures stable equipment operation, and enhances the efficiency of biogas slurry purification treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of solid-liquid separating machines capable of filtering biogas slurry, comprising: tank body;Tank frame, tank frame forms support to tank body;Pipe seat, pipe seat is set in the lower of tank frame;Liquid pipe, liquid pipe is erected on pipe seat;Connecting frame, one end of connecting frame is fixedly connected with the bottom of tank body, and the other end is fixedly connected with liquid pipe;Pump, pump is connected with liquid pipe;Liquid seepage passage, liquid seepage passage is set in the upper of liquid pipe, and liquid seepage passage is communicated with the bottom of tank body;Taper liquid head, taper liquid head is installed in the top of liquid seepage passage;Liquid level sensor, liquid level sensor is set in the top of tank body.The solid-liquid separating machine capable of filtering biogas slurry of the utility model has high separation efficiency, good filtering effect, can effectively intercept solid particles, and equipment runs stably.
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Description

Technical Field

[0001] This utility model relates to the technical field of solid-liquid separation, and in particular to a solid-liquid separator that can filter biogas slurry. Background Technology

[0002] Biogas slurry exhibits high viscosity due to the presence of various viscous components. This restricts the flow properties of the solid and liquid phases, making it difficult to achieve sufficient stratification through natural settling and forming a clear solid-liquid interface. This insufficient stratification caused by high viscosity allows solid components to easily enter the filtration stage along with the viscous liquid, reducing filtration efficiency. It also results in a significant amount of residual solid impurities in the filtered liquid, hindering the achievement of ideal filtration effects and posing a considerable obstacle to the purification of biogas slurry. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this utility model is to propose a solid-liquid separator that can filter biogas slurry, which has high separation efficiency, good filtration effect, can effectively intercept solid particles, and the equipment operates stably.

[0005] To achieve the above objectives, this utility model proposes a solid-liquid separator capable of filtering biogas slurry, comprising:

[0006] Tank body;

[0007] A can rack that supports the can body;

[0008] A tube holder, wherein the tube holder is disposed below the tank rack;

[0009] Liquid tube, which is mounted on the tube seat;

[0010] A connecting frame, one end of which is fixedly connected to the bottom of the tank body, and the other end of which is fixedly connected to the liquid pipe;

[0011] A pump, which is connected to the liquid pipe;

[0012] A seepage channel is provided above the liquid pipe and is connected to the bottom of the tank.

[0013] A conical liquid head, which is installed on top of the seepage channel;

[0014] A liquid level sensor is disposed on the top of the tank.

[0015] This utility model discloses a solid-liquid separator for filtering biogas slurry, which has high separation efficiency, good filtration effect, can effectively intercept solid particles, and the equipment operates stably.

[0016] In addition, the solid-liquid separator capable of filtering biogas slurry proposed in this application may also have the following additional technical features:

[0017] Specifically, the bottom of the conical liquid head is sealed to the top of the seepage channel.

[0018] Specifically, the connecting frame is fixedly connected to the bottom of the tank and the liquid pipe by bolts.

[0019] Specifically, the liquid level sensor is fixedly mounted on the inner top of the tank via a suspension bracket.

[0020] Specifically, the pump is coaxially connected to the liquid pipe, and the output end of the pump is connected to the flow channel of the liquid pipe.

[0021] Specifically, the conical liquid head has an inverted conical structure, and the bottom of the conical liquid head is adapted to fit and engage with the top of the seepage channel.

[0022] Specifically, the top of the seepage channel is provided with an annular positioning groove, and the bottom of the conical liquid head is embedded in the annular positioning groove to achieve coaxial positioning of the two.

[0023] Specifically, the inner wall of the conical liquid head is provided with a spiral guide groove.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0026] Figure 1 This is a schematic diagram of the structure of a solid-liquid separator capable of filtering biogas slurry according to an embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram of the liquid pipe and its connecting components in a solid-liquid separator capable of filtering biogas slurry according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the liquid removal pipe in a solid-liquid separator for filtering biogas slurry according to an embodiment of the present invention.

[0029] As shown in the figure: 1. Tank body; 2. Tank rack; 3. Pipe seat; 4. Liquid pipe; 5. Connecting frame; 6. Pump; 7. Leakage channel; 8. Conical liquid head; 9. Liquid level sensor. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0031] The following is in conjunction with the appendix Figure 1-3 The solid-liquid separator for filtering biogas slurry, as described in the embodiments of the present invention, includes:

[0032] Tank 1, as the core container for solid-liquid separation, is used to store the biogas slurry to be treated and provides space for static settling.

[0033] Tank rack 2 provides support for tank body 1.

[0034] Tube seat 3 is located below tank rack 2.

[0035] Liquid pipe 4 is mounted on pipe seat 3.

[0036] The connecting frame 5 is fixedly connected at one end to the bottom of the tank 1 and at the other end to the liquid pipe 4.

[0037] Pump 6 is connected to liquid pipe 4.

[0038] Leakage channel 7 is located above liquid pipe 4 and is connected to the bottom of tank 1.

[0039] Conical liquid head 8 is installed on top of the seepage channel 7.

[0040] Liquid level sensor 9 is located on the top of tank 1.

[0041] Specifically, the biogas slurry to be treated is injected from the top of tank 1. Tank frame 2 supports tank 1 to maintain a stable static state. Liquid level sensor 9 monitors the biogas slurry level in the tank in real time to prevent overflow or excessively low liquid level. When the biogas slurry is static in tank 1, solid particles settle to the bottom due to gravity, and the supernatant flows to the bottom of tank 1 under gravity. It is guided by cone head 8 and converges to seepage channel 7. The installation structure of cone head 8 ensures that the liquid flows to the top of seepage channel 7. Seepage channel 7 intercepts fine solid particles that have not settled through its own filtration structure. The filtered liquid enters the interior of seepage channel 7 and flows to liquid pipe 4. Connecting bracket 5 fixes the connection between the bottom of tank 1 and liquid pipe 4 to ensure a sealed and stable liquid delivery path. Pipe seat 3 supports liquid pipe 4 to keep it in a fixed position. After pump 6 starts, it draws out the filtered liquid through liquid pipe 4 and delivers it to the subsequent treatment stage. At the same time, liquid level sensor 9 continuously monitors the liquid level. When the liquid level is lower than the set value, pump 6 can be stopped to avoid idling.

[0042] In one embodiment of this utility model, the bottom of the conical liquid head 8 is sealed to the top of the seepage channel 7.

[0043] Specifically, this design effectively prevents unfiltered biogas slurry at the bottom of tank 1 from flowing directly into the interior of the seepage channel 7 or the liquid pipe 4 through the gap at the connection between the two, ensuring that all liquid flowing to the seepage channel 7 must be guided by the cone head 8 and then filtered through the filter structure of the seepage channel 7.

[0044] In one embodiment of this utility model, the connecting frame 5 is fixedly connected to the bottom of the tank body 1 and the liquid pipe 4 by bolts.

[0045] Specifically, the connecting frame 5 is fixed to the bottom of the tank 1 and the liquid pipe 4 with bolts, which ensures that the connection between the two is stable and resists vibration and impact.

[0046] In one embodiment of this utility model, the liquid level sensor 9 is fixedly mounted on the inner top of the tank 1 by a suspension bracket.

[0047] Specifically, the liquid level sensor 9 is fixed to the inner top of the tank 1 by a suspension bracket. This not only stabilizes the sensor position and prevents displacement caused by liquid sloshing or equipment vibration, ensuring accurate liquid level monitoring, but also allows it to directly contact the surface of the biogas slurry inside the tank, capturing liquid level changes in real time. The suspension design also facilitates height adjustment and reduces contact with settled solids at the bottom of the tank.

[0048] In one embodiment of this utility model, the pump 6 is coaxially connected to the liquid pipe 4, and the output end of the pump 6 is connected to the flow channel of the liquid pipe 4.

[0049] Specifically, the coaxial connection between the pump 6 and the liquid pipe 4 reduces the conveying resistance, while the connection between the output end and the flow channel ensures smooth liquid flow and improves conveying efficiency.

[0050] In one embodiment of this utility model, the cone-shaped liquid head 8 has an inverted cone shape, and the bottom of the cone-shaped liquid head 8 is adapted to fit the top of the seepage channel 7.

[0051] Specifically, the liquid head is an inverted cone shape, which can guide the liquid to converge.

[0052] In one embodiment of this utility model, the top of the seepage channel 7 is provided with an annular positioning groove, and the bottom of the conical liquid head 8 is embedded in the annular positioning groove to achieve coaxial positioning of the two.

[0053] Specifically, the annular positioning groove at the top of the seepage channel allows the bottom of the conical liquid head to be embedded, achieving precise coaxial positioning of the two.

[0054] In one embodiment of this utility model, a spiral guide groove is formed on the inner wall of the conical liquid head 8.

[0055] Specifically, the spiral guide groove on the inner wall of the cone liquid head can guide the liquid to flow in a spiral manner, so that the liquid flows evenly to the permeate passage and improves the filtration efficiency.

[0056] In actual use, the biogas slurry to be treated is injected from the top of tank 1 and allowed to settle within the tank supported by tank frame 2. Solid particles settle to the bottom, and the supernatant is guided and collected by the spiral guide channel of the inverted conical liquid head 8. It then enters the seepage channel through a sealed and coaxial positioning structure with the seepage channel 7 to complete filtration. After filtration, the liquid is pumped out and transported by pump 6 through the liquid pipe 4 fixed by connecting frame 5. The pipe seat 3 supports the liquid pipe for stability. The liquid level sensor 9 suspended inside the top of the tank monitors the liquid level in real time, and the pump stops when the liquid level is low.

[0057] In summary, the solid-liquid separator for filtering biogas slurry according to this embodiment of the invention has high separation efficiency, good filtration effect, and can effectively intercept solid particles. The equipment operates stably.

[0058] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A solid-liquid separator capable of filtering biogas slurry, characterized in that, include: Tank body (1); A can rack (2) that supports the can body (1); Tube seat (3), the tube seat (3) is disposed below the tank rack (2); Liquid pipe (4), the liquid pipe (4) is mounted on the pipe seat (3); A connecting frame (5) is provided, one end of which is connected to the bottom of the tank (1) and the other end of which is connected to the liquid pipe (4). Pump (6), the pump (6) is connected to the liquid pipe (4); Leakage channel (7), the leakage channel (7) is located above the liquid pipe (4), and the leakage channel (7) is connected to the bottom of the tank (1); A conical liquid head (8) is installed on top of the seepage channel (7); A liquid level sensor (9) is disposed on the top of the tank (1).

2. The solid-liquid separator capable of filtering biogas slurry according to claim 1, characterized in that: The bottom of the cone-shaped liquid head (8) is sealed to the top of the seepage channel (7).

3. The solid-liquid separator for filtering biogas slurry according to claim 1, characterized in that: The connecting frame (5) is fixedly connected to the bottom of the tank (1) and the liquid pipe (4) by bolts respectively.

4. The solid-liquid separator for filtering biogas slurry according to claim 1, characterized in that: The liquid level sensor (9) is fixedly mounted on the inner top of the tank (1) by a suspension bracket.

5. The solid-liquid separator for filtering biogas slurry according to claim 1, characterized in that: The pump (6) is coaxially connected to the liquid pipe (4), and the output end of the pump (6) is connected to the flow channel of the liquid pipe (4).

6. The solid-liquid separator for filtering biogas slurry according to claim 1, characterized in that: The conical liquid head (8) has an inverted conical structure, and the bottom of the conical liquid head (8) is adapted to fit the top of the seepage channel (7).

7. The solid-liquid separator for filtering biogas slurry according to claim 1, characterized in that: The top of the seepage channel (7) is provided with an annular positioning groove, and the bottom of the conical liquid head (8) is embedded in the annular positioning groove to achieve coaxial positioning of the two.

8. The solid-liquid separator for filtering biogas slurry according to claim 1, characterized in that: The inner wall of the cone liquid head (8) is provided with a spiral guide groove.