Solid-liquid separation pretreatment device

Abstract

The utility model belongs to the technical field of solid-liquid separation, and discloses a solid-liquid separation pretreatment device which comprises a shell, a crushing mechanism and a vibrating mechanism, the shell is provided with a separation chamber, a feed port, a discharge port and a slag outlet, the feed port, the discharge port and the slag outlet are respectively communicated with the separation chamber, the crushing mechanism is arranged at the feed port, and the vibrating mechanism is arranged at the discharge port. The crusher is configured to crush materials entering from the feeding hole; the vibration mechanism comprises a filter plate and a first driving assembly, the filter plate is arranged in the separation chamber, located between the feeding port and the discharging port and extends to the slag outlet, the first driving assembly can drive the filter plate to vibrate, and materials entering from the feeding port can fall to the filter plate under the action of gravity; one part of the materials can penetrate through the filter plate to fall to the discharge port, and the other part of the materials can move to the slag outlet through vibration of the filter plate. According to the utility model, the passing of liquid and small particles is accelerated, the treatment efficiency is improved, the automatic discharge of large-particle materials is realized, and the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid -liquid separation technical field especially is related to a solid -liquid separation pretreatment device. BACKGROUND

[0002] In oil and gas resource exploration and development, waste drilling fluid is one of the main pollutants, and with the development of deep well, horizontal well and unconventional oil and gas resources, its production is growing, and waste drilling fluid contains various pollutants, and if not handled properly, it can seriously damage the environment. When some treatment equipment treats the backflow waste drilling fluid, no pretreatment link is set, but solid-liquid separation is directly carried out by vibration stirring and other ways. Because the waste drilling fluid may wrap large particle rock chips or plant roots and other waste materials, such waste materials have large volume, which increases the burden of the solid-liquid separation device in the treatment process, may affect the stable operation of the device, and even cause damage to the device.

[0003] In view of the above problems, the prior art sets a solid-liquid separation pretreatment device, which comprises a crushing unit and a filtering unit. After the waste drilling fluid enters the feed bin, it is first extruded and ground by the high-speed rotating roller, and the large waste materials are crushed into smaller particles, which are discharged through the bottom outlet of the feed bin. The crushed materials then enter the filtering unit, and the liquid and the fine solid particles meeting the particle size requirement after crushing can smoothly pass through the pores of the filter screen plate and be discharged through the discharge port, completing the preliminary link of solid-liquid separation.

[0004] However, large particles are easy to block the pores of the filter screen plate, resulting in a significant decrease in the filtration speed of the liquid and small particle solids, and a decrease in the amount of materials passing through the filter screen plate per unit time, thereby reducing the treatment efficiency of the solid-liquid separation link. In addition, manual cleaning of the filter screen plate is required frequently, which is labor-intensive. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a solid-liquid separation pretreatment device, which not only has high treatment efficiency, but also has low labor cost.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The solid-liquid separation pretreatment device comprises:

[0008] A housing is provided with a separation chamber, a feed inlet, a discharge outlet and a slag outlet, and the feed inlet, the discharge outlet and the slag outlet are respectively communicated with the separation chamber;

[0009] A crushing mechanism is arranged at the feed inlet and configured to crush the materials entering from the feed inlet;

[0010] The vibrating mechanism comprises a filter plate and a first driving assembly, the filter plate is arranged in the separation chamber between the feeding port and the discharging port and extends to the slag discharging port, the first driving assembly can drive the filter plate to vibrate, the material entering from the feeding port can fall to the filter plate under the action of gravity, and the filter plate can screen the material into two parts, one part of the material can fall to the discharging port through the filter plate, and the other part of the material can move to the slag discharging port through the vibration of the filter plate.

[0011] Further, one end of the filter plate away from the slag discharging port is rotationally connected to the shell, the vibrating mechanism further comprises a vibrating frame and a connecting piece, the first driving assembly comprises a first driving motor and a rotating disc, the first driving motor is fixedly arranged on the shell, the rotating disc is connected to the output end of the first driving motor, one end of the connecting piece is rotationally connected to the rotating disc, and the other end of the connecting piece is rotationally connected to the vibrating frame, and the vibrating frame is rotationally connected to the filter plate.

[0012] Further, the crushing mechanism comprises a crushing assembly and a second driving assembly, and the second driving assembly can drive the crushing assembly to rotate.

[0013] Further, the crushing assembly comprises a first crushing piece, the second driving assembly comprises a second driving motor, a driving wheel and a first driven wheel, the second driving motor is fixedly arranged on the shell, the driving wheel is connected to the output end of the second driving motor, the first driven wheel is sleeved on the first crushing piece and arranged on the feeding port, and the first driven wheel is in transmission connection with the driving wheel.

[0014] Further, the crushing assembly further comprises a second crushing piece, the second driving assembly further comprises a second driven wheel, the second driven wheel is sleeved on the second crushing piece and arranged on the feeding port, the second driven wheel is in transmission connection with the driving wheel, and the rotating directions of the second driven wheel and the first driven wheel are opposite when the driving wheel operates.

[0015] Further, the first crushing piece comprises a first cutting blade, the second crushing piece comprises a second cutting blade, and the first cutting blade and the second cutting blade are both provided with sawtooth grooves on the sides facing each other.

[0016] Further, the crushing mechanism further comprises a crushing cylinder, the crushing cylinder is arranged in the feeding port and partially extends into the separation chamber, the crushing cylinder is provided with a liquid inlet channel communicated with the separation chamber, and the crushing assembly is arranged in the liquid inlet channel.

[0017] Further, an end of the liquid inlet channel away from the separation chamber is provided with a guide port, and the inner wall surface of the guide port gradually approaches the axis of the liquid inlet channel in the direction towards the liquid inlet channel.

[0018] Further, the separation chamber comprises an upper chamber and a lower chamber in communication with each other, the lower chamber is funnel-shaped, the discharge port is located at the bottom of the lower chamber, the feeding port is located at the top of the upper chamber, and the slag discharge port is located at the side of the upper chamber.

[0019] Further, the solid-liquid separation pretreatment device further comprises a discharge pipe communicated with the discharge port.

[0020] The solid-liquid separation pretreatment device has the advantages that:

[0021] The solid-liquid separation pretreatment device has the advantages that: when the solid-liquid mixture is treated, the large-particle material is first crushed into small particles by the crushing mechanism, so as to avoid the impact and damage of the large-particle material on the device and create favorable conditions for subsequent filtration; then, the material falls to the filter plate under the action of gravity, the first driving assembly can drive the filter plate to vibrate, so that the material is dispersed on the filter plate, which is beneficial to the smooth passing of the liquid and the small solid particles meeting the particle size requirement through the pores of the filter plate and falling to the discharge port, thereby accelerating the filtration speed of the liquid and the small-particle solid, improving the material amount passing through the filter plate per unit time, and further improving the treatment efficiency; meanwhile, the large-particle material that cannot pass through the filter plate can be moved to the slag discharge port through the vibration of the filter plate, so that the large-particle material is automatically discharged, and the large-particle material on the filter plate does not need to be manually cleaned frequently, thereby reducing the labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a first structure schematic view of the solid-liquid separation pretreatment device;

[0023] Figure 2 is a second structure schematic view of the solid-liquid separation pretreatment device;

[0024] Figure 3 is a sectional view of the solid-liquid separation pretreatment device;

[0025] Figure 4 is Figure 3 is an enlarged view of A in the figure;

[0026] Figure 5 is Figure 3 is an enlarged view of B in the figure.

[0027] In the figure:

[0028] 1, shell; 100, separation chamber; 1001, upper chamber; 1002, lower chamber;

[0029] 2, crushing mechanism; 21, crushing assembly; 211, first crushing piece; 2111, first cutting blade; 2112, first receiving column; 2113, first annular plate; 212, second crushing piece; 2121, second cutting blade; 2122, second annular plate; 2100, sawtooth groove; 22, second driving assembly; 221, second driving motor; 222, driving wheel; 223, first driven wheel; 224, second driven wheel;

[0030] 3, vibration mechanism; 31, filter plate; 32, first driving assembly; 321, first driving motor; 322, turntable; 33, vibration frame; 34, connecting piece;

[0031] 4, discharge pipe;

[0032] 5, support piece. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar parts or parts having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0034] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the description of the present application, unless explicitly defined and limited otherwise, the "upper" or "lower" of the second feature of the feature can include the direct contact of the first and second features, or the contact of the feature and the second feature through another feature between them. Moreover, the feature "above", "above" and "above" of the second feature includes the feature directly above and obliquely above the second feature, or only indicates that the feature is higher than the second feature in horizontal height. The feature "below", "below" and "below" of the second feature includes the feature directly below and obliquely below the second feature, or only indicates that the feature is lower than the second feature in horizontal height.

[0036] The technical scheme of the utility model is further illustrated below in combination with the drawings and through specific embodiments.

[0037] As Figures 1-5 shown, the utility model provides a kind of solid-liquid separation pretreatment device, including shell 1, crushing mechanism 2 and vibration mechanism 3, shell 1 is provided with separation chamber 100, feed inlet, discharge outlet and slag outlet, feed inlet, discharge outlet and slag outlet are communicated in separation chamber 100 respectively;Crushing mechanism 2 is arranged at feed inlet, is configured as the material that is smashed from feed inlet enters;Vibration mechanism 3 includes filter plate 31 and first drive assembly 32, filter plate 31 is arranged in separation chamber 100, between feed inlet and discharge outlet and extends to slag outlet, first drive assembly 32 can drive filter plate 31 vibration, material that enters from feed inlet can fall to filter plate 31 under the action of gravity, filter plate 31 can screen material into two parts, part of material can pass through filter plate 31 and fall to discharge outlet, another part of material can be moved to slag outlet by filter plate 31 vibration.

[0038] When solid-liquid mixture material is handled, first, large particle material is smashed into smaller particle by crushing mechanism 2, avoid the impact and damage of large particle material to device, simultaneously create favorable condition for subsequent filtration;Then, material falls to filter plate 31 under the action of gravity, first drive assembly 32 can drive filter plate 31 vibration, so that material disperses on filter plate 31, is favorable for liquid and small solid particle meeting the requirement of particle size to pass through the aperture of filter plate 31 smoothly, and fall to discharge outlet, to accelerate the filtration speed of liquid and small particle solid, improve the material amount passing through filter plate 31 in unit time, to further improve processing efficiency;Meanwhile, large particle material that cannot pass through filter plate 31 can be moved to slag outlet by filter plate 31 vibration, realize the automatic discharge of large particle material, do not need to clean large particle material on filter plate 31 frequently by hand, to reduce labor cost.

[0039] Specifically, as Figure 3 and Figure 5As shown, the filter plate 31 is rotationally connected to the shell 1 away from the slag outlet, the vibration mechanism 3 further comprises a vibration frame 33 and a connecting piece 34, the first driving assembly 32 comprises a first driving motor 321 and a rotating disc 322, the first driving motor 321 is fixedly arranged on the shell 1, the rotating disc 322 is connected to the output end of the first driving motor 321, one end of the connecting piece 34 is rotationally connected to the rotating disc 322, and the other end is rotationally connected to the vibration frame 33, and the vibration frame 33 is rotationally connected to the filter plate 31. The first driving motor 321 serves as a power source, converts the rotary motion of the motor into the circumferential motion of the rotating disc 322 through the connecting rotating disc 322, and changes the position of the connecting piece 34 with the rotation of the rotating disc 322 when the rotating disc 322 performs the circumferential motion. Since the connecting piece 34 is rotationally connected to the rotating disc 322 and the vibration frame 33, the connecting piece 34 can convert the circumferential motion of the rotating disc 322 into the reciprocating pushing action on the vibration frame 33. With the reciprocating swing of the vibration frame 33, the filter plate 31 starts to reciprocate with the rotational connection point between the filter plate 31 and the shell 1 as the axis. By adjusting the parameters of the first driving motor 321, the frequency and amplitude of the vibration can be accurately controlled, so that the optimal vibration parameters can be adjusted according to different material characteristics and processing requirements, so as to improve the processing efficiency and separation effect.

[0040] In the embodiment, the filter plate 31 is arranged obliquely, and the height of the filter plate 31 gradually decreases towards the slag outlet. The large-particle material that cannot pass through the filter plate 31 can more smoothly move to the slag outlet under the joint action of its own gravity and the vibration of the filter plate 31, thereby accelerating the discharge speed of the large-particle material and improving the working efficiency of the processing device.

[0041] Specifically, as shown in the figure, Figure 1 The crushing mechanism 2 comprises a crushing assembly 21 and a second driving assembly 22, the second driving assembly 22 can drive the crushing assembly 21 to rotate, rapidly crush the material entering from the feeding port, break the large waste into smaller particles, shorten the crushing time of the material, and improve the processing efficiency of the entire solid-liquid separation pretreatment device.

[0042] More specifically, as shown in the figure, Figure 4As shown, the crushing assembly 21 includes a first crushing piece 211, the second driving assembly 22 includes a second driving motor 221, a driving wheel 222 and a first driven wheel 223, the second driving motor 221 is fixedly arranged on the shell 1, the driving wheel 222 is connected to the output end of the second driving motor 221, the first driven wheel 223 is sleeved on the first crushing piece 211 and arranged at the feeding port, and the first driven wheel 223 is drivingly connected to the driving wheel 222. By adjusting the rotating speed of the second driving motor 221, the rotating speed of the driving wheel 222 can be changed, and then the rotating speed of the first driven wheel 223 and the first crushing piece 211 can be accurately controlled. In the face of high-hardness materials, the rotating speed can be increased to enhance the crushing degree; for easily crushed materials, the rotating speed can be reduced to save energy and crush the materials, thereby improving the adaptability of the device to different materials.

[0043] More specifically, the crushing assembly 21 further includes a second crushing piece 212, and the second driving assembly 22 further includes a second driven wheel 224, the second driven wheel 224 is sleeved on the second crushing piece 212 and arranged at the feeding port, and the second driven wheel 224 is drivingly connected to the driving wheel 222. When the driving wheel 222 operates, the rotating directions of the second driven wheel 224 and the first driven wheel 223 are opposite. The two crushing pieces apply force from different directions, which can more comprehensively crush the materials, improve the fineness and completeness of crushing, and ensure better material basis for the subsequent solid-liquid separation link.

[0044] In the embodiment, the driving wheel 222, the first driven wheel 223 and the second driven wheel 224 are all bevel gears, and the first driven wheel 223 and the second driven wheel 224 are respectively meshingly connected with the driving wheel 222.

[0045] In other embodiments, the driving wheel 222, the first driven wheel 223 and the second driven wheel 224 are all conical wheels, and the first driven wheel 223 and the second driven wheel 224 are both abutted with the driving wheel 222 and drivingly connected through friction.

[0046] In other embodiments, the first driven wheel 223 and the second driven wheel 224 are both drivingly connected with the driving wheel 222 through winding transmission belts, and one of them is drivingly connected with the driving wheel 222 through winding a cross belt, so that when the driving wheel 222 operates, the rotating directions of the second driven wheel 224 and the first driven wheel 223 are opposite.

[0047] More specifically, the first crushing piece 211 includes a first cutting blade 2111, and the second crushing piece 212 includes a second cutting blade 2121, and the first cutting blade 2111 and the second cutting blade 2121 are both provided with sawtooth grooves 2100 on the side facing each other. The sawtooth grooves 2100 increase the contact area between the cutting blades and the materials, and are more likely to tear and cut the materials during cutting, thereby enhancing the cutting and crushing effect.

[0048] In the embodiment, the first crushing member 211 further comprises a first receiving column 2112 and a first annular plate 2113, the first cutting blades 2111 are provided in plurality, the plurality of first cutting blades 2111 are circumferentially and uniformly distributed, one end is connected to the first receiving column 2112, and the other end is connected to the inner wall of the first annular plate 2113, and the first driven wheel 223 is sleeved on the outer wall of the first annular plate 2113.

[0049] In the embodiment, the second crushing member 212 further comprises a second receiving column and a second annular plate 2122, the second cutting blades 2121 are provided in plurality, the plurality of second cutting blades 2121 are circumferentially and uniformly distributed, one end is connected to the second receiving column, and the other end is connected to the inner wall of the second annular plate 2122, the second receiving column abuts against the first receiving column 2112, and the second driven wheel 224 is sleeved on the outer wall of the second annular plate 2122.

[0050] Specifically, as shown in Figure 3 The crushing mechanism 2 further comprises a crushing cylinder 23, the crushing cylinder 23 is arranged in the feeding port and partially extends into the separation chamber 100, the crushing cylinder 23 is provided with a liquid inlet channel communicated with the separation chamber 100, and the crushing assembly 21 is arranged in the liquid inlet channel. The liquid inlet channel provides a specific working space for the crushing assembly 21, avoids the material from being randomly dispersed near the feeding port, and when the material flows in the liquid inlet channel, the material is constrained by the channel wall, the movement track is more regular, the material can fully interact with the crushing assembly 21, and the crushing quality is improved.

[0051] In the embodiment, the inner wall of the liquid inlet channel is provided with a first annular groove and a second annular groove, the outer wall of the crushing cylinder 23 is provided with a connecting groove, the first annular groove and the second annular groove are both communicated with the connecting groove, the first driven wheel 223 is sleeved on the first crushing member 211 and extends into the first annular groove, the second driven wheel 224 is sleeved on the second crushing member 212 and extends into the second annular groove, and the driving wheel 222 extends into the connecting groove and is in meshing connection with the first driven wheel 223 and the second driven wheel 224.

[0052] More specifically, one end of the liquid inlet channel away from the separation chamber 100 is provided with a guide port 230, and the inner wall surface of the guide port 230 gradually approaches the axis of the liquid inlet channel in the direction towards the liquid inlet channel. The inner wall surface of the guide port 230 gradually converges the material, avoids the material from being dispersed or deviated at the inlet of the liquid inlet channel, ensures that the material orderly enters the liquid inlet channel and centrally contacts the crushing assembly 21, and improves the action efficiency of the material and the crushing assembly 21.

[0053] In the embodiment, the liquid inlet channel is provided with a guide outlet at one end away from the guide opening 230. In the direction away from the liquid inlet channel, the inner wall surface of the guide outlet gradually moves away from the axis of the liquid inlet channel. The material coming out of the liquid inlet channel is gradually dispersed when leaving the channel, and the material is more dispersed on the filter plate 31, and the filter holes on the filter plate 31 are less likely to be blocked, which is more conducive to the smooth passage of liquid and fine solid particles meeting the particle size requirements through the filter holes.

[0054] Specifically, as shown in Figure 3 the separation chamber 100 includes an upper chamber 1001 and a lower chamber 1002 in communication with each other. The lower chamber 1002 is funnel-shaped, the discharge opening is located at the bottom of the lower chamber 1002, the feed opening is located at the top of the upper chamber 1001, and the slag discharge opening is located at the side of the upper chamber 1001. The funnel-shaped lower chamber 1002 can guide the material to flow quickly to the discharge opening under the action of gravity, reduce the residence time of the material in the separation chamber 100, and speed up the processing process.

[0055] Specifically, the solid-liquid separation pretreatment device further comprises a discharge pipe 4 which is communicated with the discharge opening. The discharge pipe 4 not only can guide the material to flow out smoothly, but also is convenient for docking with other equipment.

[0056] In the embodiment, the discharge pipe 4 extends in the horizontal direction.

[0057] In other embodiments, the discharge pipe 4 can also be inclined.

[0058] Specifically, as shown in Figure 1 the solid-liquid separation pretreatment device further comprises a plurality of support members 5 which are spaced apart in the circumferential direction, one end of which is connected to the housing 1, and the other end of which abuts against the reference surface, and the discharge pipe 4 is a certain height away from the reference surface. The plurality of support members 5 are uniformly spaced apart in the circumferential direction, providing extremely balanced support force for the entire treatment device, so that the treatment device can stand stably; the discharge pipe 4 is kept a certain height away from the reference surface, which is convenient for material discharge.

[0059] In the embodiment, the support member 5 is provided with four.

[0060] In other embodiments, the number of support members 5 is not limited to four, and can be reasonably arranged according to the size of the housing 1.

[0061] In other embodiments, the support member 5 can also not be provided, and the solid-liquid separation pretreatment device can be fixed in a wall-mounted or suspended manner.

[0062] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A solid-liquid separation pretreatment device, characterized in that, include: The shell (1) is provided with a separation chamber (100), a feed inlet, a discharge outlet and a slag outlet, and the feed inlet, the discharge outlet and the slag outlet are respectively connected to the separation chamber (100). Crushing mechanism (2), which is located at the feed inlet and is configured to crush the material entering from the feed inlet; Vibration mechanism (3), the vibration mechanism (3) includes a filter plate (31) and a first drive assembly (32). The filter plate (31) is disposed in the separation chamber (100), located between the feed inlet and the discharge outlet and extending to the slag outlet. The first drive assembly (32) can drive the filter plate (31) to vibrate. The material entering from the feed inlet can fall onto the filter plate (31) under the action of gravity. The filter plate (31) can screen the material into two parts. One part of the material can pass through the filter plate (31) and fall to the discharge outlet. The other part of the material can be moved to the slag outlet by the vibration of the filter plate (31). The filter plate (31) is rotatably connected to the housing (1) at one end away from the slag outlet. The vibration mechanism (3) further includes a vibration frame (33) and a connecting piece (34). The first drive assembly (32) includes a first drive motor (321) and a turntable (322). The first drive motor (321) is fixedly mounted on the housing (1). The turntable (322) is connected to the output end of the first drive motor (321). One end of the connecting piece (34) is rotatably connected to the turntable (322), and the other end is rotatably connected to the vibration frame (33). The vibration frame (33) is rotatably connected to the filter plate (31).

2. The solid-liquid separation pretreatment device according to claim 1, characterized in that, The crushing mechanism (2) includes a crushing component (21) and a second driving component (22), the second driving component (22) being able to drive the crushing component (21) to rotate.

3. The solid-liquid separation pretreatment device according to claim 2, characterized in that, The crushing assembly (21) includes a first crushing element (211), and the second driving assembly (22) includes a second driving motor (221), a driving wheel (222) and a first driven wheel (223). The second driving motor (221) is fixedly mounted on the housing (1), the driving wheel (222) is connected to the output end of the second driving motor (221), the first driven wheel (223) is sleeved on the first crushing element (211) and located at the feed inlet, and the first driven wheel (223) is drivenly connected to the driving wheel (222).

4. The solid-liquid separation pretreatment device according to claim 3, characterized in that, The crushing assembly (21) further includes a second crushing element (212), and the second driving assembly (22) further includes a second driven wheel (224). The second driven wheel (224) is sleeved on the second crushing element (212) and disposed at the feed inlet. The second driven wheel (224) is connected to the driving wheel (222) in a driving connection. When the driving wheel (222) is in motion, the second driven wheel (224) and the first driven wheel (223) rotate in opposite directions.

5. The solid-liquid separation pretreatment device according to claim 4, characterized in that, The first crushing component (211) includes a first cutting blade (2111), and the second crushing component (212) includes a second cutting blade (2121). The first cutting blade (2111) and the second cutting blade (2121) are provided with serrated grooves (2100) on opposite sides.

6. The solid-liquid separation pretreatment device according to claim 2, characterized in that, The pulverizing mechanism (2) also includes a pulverizing cylinder (23), which passes through the feed inlet and extends partially into the separation chamber (100). The pulverizing cylinder (23) is provided with a liquid inlet channel communicating with the separation chamber (100), and the pulverizing component (21) is disposed in the liquid inlet channel.

7. The solid-liquid separation pretreatment device according to claim 6, characterized in that, The liquid inlet channel is provided with a guide port (230) at one end away from the separation chamber (100), and the inner wall surface of the guide port (230) gradually approaches the axis of the liquid inlet channel along the direction toward the liquid inlet channel.

8. The solid-liquid separation pretreatment device according to claim 1, characterized in that, The separation chamber (100) includes an upper chamber (1001) and a lower chamber (1002) that are interconnected. The lower chamber (1002) is funnel-shaped. The discharge port is located at the bottom of the lower chamber (1002), the feed port is located at the top of the upper chamber (1001), and the slag discharge port is located on the side of the upper chamber (1001).

9. The solid-liquid separation pretreatment apparatus according to any one of claims 1-8, characterized in that, The solid-liquid separation pretreatment device also includes a discharge pipe (4), which is connected to the discharge port.

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