Settling separation system for industrial lignin extraction processes

Abstract

The utility model discloses a precipitate separation system for industrial lignin extraction process relates to industrial lignin extraction technical field. The utility model discloses a precipitate separation tank, and the precipitate separation tank includes the pool body, the cover plate of sealed setting in the upper portion of pool body and sets up the drain end in the bottom of pool body, the built -in precipitate chamber and the buffer chamber of pool body, and the overflow board is arranged between precipitate chamber and buffer chamber, and is provided with the circulating pipe between precipitate chamber and buffer chamber, and the drain pipe is still connected with the setting of buffer chamber middle part, and the inside one end of precipitate chamber is linked together with drain end, and the inside of precipitate chamber is provided with the inclined guide block, and the lowest part of inclined guide block is located at the opening edge of drain end. The utility model discloses set up precipitate chamber and buffer chamber in the pool body, and utilize overflow board and separate, realized the staged precipitation and orderly flow of suspension, not only improved the sedimentation efficiency, also effectively avoided the phenomenon that liquid backflow or disturbed the sediment, promoted the effect and stability of solid - liquid separation.

Description

Technical Field

[0001] This invention belongs to the field of industrial lignin extraction technology, and in particular relates to a precipitation separation system used in the industrial lignin extraction process. Background Technology

[0002] In the industrial lignin extraction process, precipitation separation is a crucial step, primarily used to effectively separate solid particles from the liquid medium in a lignin suspension. Traditional precipitation separation equipment often employs open sedimentation tanks or simple settling tanks, relying mainly on gravity to allow solid particles to settle naturally, with the clarified liquid overflowing from the top. However, these traditional devices have several shortcomings in practical applications, such as:

[0003] Traditional sedimentation equipment has a relatively simple internal structure and lacks a reasonable flow guidance and separation design, resulting in irregular liquid flow paths. This can easily lead to short-circuit flow, backflow, or disturbance of the settled material, thus affecting sedimentation efficiency and separation effect. Secondly, most equipment does not have a circulation treatment mechanism, and cannot automatically return substandard effluent for reprocessing, resulting in large fluctuations in effluent quality, which is not conducive to the stable operation of subsequent processes.

[0004] To address these issues, we provide a precipitation separation system for industrial lignin extraction processes. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a precipitation separation system for industrial lignin extraction, comprising a precipitation separation tank, the precipitation separation tank including a tank body, a cover plate sealed on the upper part of the tank body, and a drain end located at the bottom of the tank body; the tank body contains a precipitation chamber and a buffer chamber, an overflow plate is provided between the precipitation chamber and the buffer chamber, and a circulation pipe is provided between the precipitation chamber and the buffer chamber, and a drain pipe is also connected to the middle of the buffer chamber; the drain end is connected to one end of the interior of the precipitation chamber, and an inclined guide block is provided inside the precipitation chamber, the lowest point of the inclined guide block being located at the opening edge of the drain end.

[0007] The present invention is further configured such that the upper part of the overflow plate is provided with guide grooves at equal intervals, and the edge of the overflow plate is equipped with an installation strip, which is fixed to the inner side wall of the sedimentation separation tank.

[0008] The present invention is further provided in that the upper mounting surface of the pool body is provided with a sealing groove, the sealing groove is provided with a sealing strip, the sealing strip is sealed between the upper side of the pool body and the cover plate, and the upper mounting surface of the pool body and the corner of the cover plate are provided with slots for fastener installation.

[0009] The present invention is further configured such that one end of the circulation pipe is connected to the lower part of the buffer chamber and is equipped with a pump body, and the other end of the circulation pipe is connected to the upper part of the sedimentation chamber.

[0010] The present invention is further configured such that the buffer room has an internal detection sensor, and the detection sensor, the pump body, and the remote control terminal form a circulating sedimentation feedback system.

[0011] The present invention is further configured such that one end of the cover plate is equipped with a feed pipe, and the feed pipe passes through the cover plate and is connected to the sedimentation chamber.

[0012] The present invention is further configured such that a baffle is sealed at the other end of the cover plate, and a transparent observation window is embedded in the middle of the baffle plate, the transparent observation window being located directly above the buffer chamber.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model achieves graded sedimentation and orderly flow of suspension by setting a sedimentation chamber and a buffer chamber in the pool and separating them with an overflow plate. This not only improves sedimentation efficiency but also effectively avoids liquid backflow or disturbance of the settled matter, thereby improving the effect and stability of solid-liquid separation. The inclined guide block helps to concentrate and guide the settled solid particles to the discharge end opening, which is convenient for subsequent centralized discharge, reduces the difficulty of slag removal and the frequency of manual maintenance, and improves the automation level and ease of operation of the equipment.

[0015] 2. This utility model introduces a circulating sedimentation path composed of a circulation pipe and a pump body, and combines a detection sensor with a remote control terminal to form a closed-loop feedback control system. When the turbidity or suspended solids concentration of the liquid in the buffer chamber is detected to be too high, the circulation pump can be automatically started to send the substandard liquid back to the sedimentation chamber for secondary treatment, ensuring that the quality of the effluent is always within a controllable range, which significantly improves the intelligence and operational reliability of the system.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the pool body of this utility model;

[0020] Figure 3 This is a schematic diagram of one end of the pool body of this utility model;

[0021] Figure 4 This is a schematic diagram of the other end of the pool body of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 100. Sedimentation separation tank; 101. Tank body; 101a. Drainage pipe; 101b. Circulation pipe; 101c. Sedimentation chamber; 101d. Buffer chamber; 101e. Mounting strip; 101f. Overflow plate; 101g. Sealing groove; 101h. Pump body; 102. Cover plate; 102a. Feed pipe; 102b. Baffle; 102c. Transparent observation window; 103. Discharge end; 104. Inclined guide block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] Please see Figure 1-4 This utility model relates to a precipitation separation system for industrial lignin extraction, comprising a precipitation separation tank 100. The precipitation separation tank 100 includes a tank body 101, a cover plate 102 sealed on the upper part of the tank body 101, and a discharge end 103 located at the bottom of the tank body 101. The tank body 101 contains a precipitation chamber 101c and a buffer chamber 101d. An overflow plate 101f separates the precipitation chamber 101c and the buffer chamber 101d. The upper part of the overflow plate 101f has equidistant guide grooves. The edge of the flow plate 101f is equipped with an installation strip 101e, which is fixed to the inner side wall of the sedimentation separation tank 100. A circulation pipe 101b is provided between the sedimentation chamber 101c and the buffer chamber 101d. A drain pipe 101a is also connected to the middle of the buffer chamber 101d. The discharge end 103 is connected to one end of the interior of the sedimentation chamber 101c. An inclined guide block 104 is provided inside the sedimentation chamber 101c. The lowest point of the inclined guide block 104 is located at the opening edge of the discharge end 103.

[0027] Specifically, one end of the circulation pipe 101b is connected to the lower interior of the buffer chamber 101d and is equipped with a pump body 101h; the other end of the circulation pipe 101b is connected to the upper interior of the sedimentation chamber 101c; the buffer chamber 101d has a built-in detection sensor, and the detection sensor, the pump body 101h, and the remote control terminal form a circulation sedimentation feedback system.

[0028] Furthermore, one end of the cover plate 102 is equipped with a feed pipe 102a, which passes through the cover plate 102 and connects to the sedimentation chamber 101c. The other end of the cover plate 102 is sealed with a baffle 102b, and a transparent observation window 102c is embedded in the middle of the baffle 102b. The transparent observation window 102c is located directly above the buffer chamber 101d. A sealing groove 101g is provided on the upper mounting surface of the pool body 101. A sealing strip is built into the sealing groove 101g and is sealed between the upper side of the pool body 101 and the cover plate 102. Slots for fastener installation are provided at the corners of the upper mounting surface of the pool body 101 and the cover plate 102.

[0029] The precipitation separation system provided in this embodiment is mainly used in the industrial lignin extraction process, realizing the effective precipitation and separation of lignin suspension. Its principle is as follows: the lignin suspension to be treated enters the precipitation chamber 101c of the precipitation separation tank 100 through the feed pipe 102a on the cover plate 102. During this process, the solid particles in the liquid gradually settle to the bottom of the tank under the action of gravity. To improve sedimentation efficiency and prevent precipitates from being disturbed and resuspended, an inclined guide block 104 is installed in the sedimentation chamber 101c. This inclined guide block 104 guides the precipitates to the edge of the discharge end 103 opening for easy subsequent centralized discharge. Meanwhile, the sedimentation chamber 101c and the buffer chamber 101d are separated by an overflow plate 101f. The overflow plate 101f is equipped with a guide channel, allowing the liquid that has undergone preliminary sedimentation to overflow into the buffer chamber 101d in a uniform distribution, thereby avoiding turbulence and backflow. A drain pipe 101a is installed in the middle of the buffer chamber 101d to discharge the upper clear liquid, achieving solid-liquid separation. In addition, a circulation pipe 101b is connected between the buffer chamber 101d and the sedimentation chamber 101c. One end of the circulation pipe 101b is connected to the bottom of the buffer chamber 101d, and the other end is connected to the top of the sedimentation chamber 101c. A pump body 101h is installed in the pipe to form a circulating flow path. When the detection sensor detects that the turbidity or suspended solids concentration of the liquid in the buffer chamber 101d exceeds the set threshold, the signal is fed back to the remote control terminal, and the pump 101h is started to transport the insufficiently settled liquid back to the sedimentation chamber 101c for secondary sedimentation, thus forming a closed-loop feedback control system to ensure the separation effect.

[0030] The entire sedimentation separation tank 100 is equipped with a sealing cover plate 102 at the top. On the one hand, the sealing groove 101g and sealing strip ensure the airtightness of the system and reduce external pollution and odor emission. On the other hand, the cover plate 102 is equipped with a transparent observation window 102c, which allows operators to monitor the clarification status of the buffer chamber 101d in real time. Fastener installation slots are also provided at the corners of the cover plate 102 and the tank body for quick disassembly and maintenance.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A precipitation separation system for industrial lignin extraction processes, comprising a precipitation separation tank (100), characterized in that: The sedimentation separation tank (100) includes a tank body (101), a cover plate (102) sealed on the upper part of the tank body (101), and a drain end (103) located at the bottom of the tank body (101). The tank body (101) contains a sedimentation chamber (101c) and a buffer chamber (101d). An overflow plate (101f) is provided between the sedimentation chamber (101c) and the buffer chamber (101d). A circulation pipe (101b) is provided between the sedimentation chamber (101c) and the buffer chamber (101d). A drain pipe (101a) is also connected to the middle of the buffer chamber (101d). The drain end (103) is connected to one end of the interior of the sedimentation chamber (101c). An inclined guide block (104) is provided inside the sedimentation chamber (101c). The lowest point of the inclined guide block (104) is located at the opening edge of the drain end (103).

2. The precipitation separation system for industrial lignin extraction according to claim 1, characterized in that, The overflow plate (101f) has equidistant guide grooves on its upper part, and the edge of the overflow plate (101f) is equipped with an installation strip (101e), which is fixed to the inner side wall of the sedimentation separation tank (100).

3. The precipitation separation system for industrial lignin extraction according to claim 1, characterized in that, A sealing groove (101g) is provided on the upper mounting surface of the pool body (101). A sealing strip is built into the sealing groove (101g). The sealing strip is sealed between the upper side of the pool body (101) and the cover plate (102). The upper mounting surface of the pool body (101) and the corner of the cover plate (102) are both provided with slots for fastener installation.

4. The precipitation separation system for industrial lignin extraction according to claim 1, characterized in that, One end of the circulation pipe (101b) is connected to the lower interior of the buffer chamber (101d) and is equipped with a pump body (101h). The other end of the circulation pipe (101b) is connected to the upper interior of the sedimentation chamber (101c).

5. The precipitation separation system for industrial lignin extraction according to claim 4, characterized in that, The buffer chamber (101d) has a built-in detection sensor, and the detection sensor, pump body (101h), and remote control terminal form a circulating sedimentation feedback system.

6. The precipitation separation system for industrial lignin extraction according to claim 1, characterized in that, The cover plate (102) is equipped with a feed pipe (102a) at one end, and the feed pipe (102a) passes through the cover plate (102) and is connected to the sedimentation chamber (101c).

7. The precipitation separation system for industrial lignin extraction according to claim 1, characterized in that, The other end of the cover plate (102) is sealed with a baffle (102b), and a transparent observation window (102c) is embedded in the middle of the baffle (102b). The transparent observation window (102c) is located directly above the buffer chamber (101d).

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