Extrusion solid-liquid separator

Abstract

The invention provides an extrusion solid-liquid separator, and relates to the technical field of sludge treatment. The extrusion solid-liquid separator comprises an extrusion mechanism, the extrusion mechanism comprises a spiral shaft and a conical pipe, the spiral shaft is rotatably arranged in the conical pipe, the conical pipe is provided with a pipe bottom, the inner surface of the pipe bottom is provided with a plurality of containing grooves extending in the axial direction of the conical pipe, and the pipe bottom is provided with a plurality of liquid outlet holes communicated with the containing grooves; each containing groove is internally provided with a plurality of extrusion plates, a gap is formed between every two adjacent extrusion plates in each containing groove, and when the spiral shaft rotates, the extrusion plates can move in the radial direction of the conical pipe; and the discharging pipe is communicated with the lower side of the accommodating groove. Triple dehydration is achieved through spiral extrusion dehydration, primary extrusion dehydration and secondary extrusion dehydration, and the dehydration effect is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment, and in particular to an extrusion solid-liquid separator. Background Art

[0002] Sludge treatment is an integral part of the sewage treatment process. As the degree of sewage treatment increases, the amount of sludge produced also increases. Sludge contains a large amount of organic matter and nutrients. If it is discharged directly without treatment, it will cause serious pollution to the environment.

[0003] Solid-liquid separation technology is a key link in sludge treatment. It can effectively reduce the volume of sludge and reduce the cost of subsequent treatment. Most traditional solid-liquid separation equipment such as belt filters, centrifuges and plate and frame filter presses have problems such as low dehydration efficiency and high moisture content of treated sludge. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an extrusion solid-liquid separator.

[0005] The present invention provides an extrusion solid-liquid separator, comprising: An extrusion mechanism, the extrusion mechanism comprising a spiral shaft and a tapered tube, the spiral shaft being rotatably disposed in the tapered tube, the tapered tube having a tube bottom, the inner surface of the tube bottom being provided with a plurality of receiving grooves extending along the axial direction of the tapered tube, the tube bottom being provided with a plurality of liquid outlet holes communicating with the receiving grooves; Extrusion plates, a plurality of the extrusion plates are arranged in each of the accommodating grooves, gaps are formed between adjacent extrusion plates in each of the accommodating grooves, and when the spiral shaft rotates, the extrusion plates can move along the radial direction of the tapered tube; A discharge pipe is communicated with a lower side of the accommodating tank.

[0006] Optionally, the diameter of the spiral blades of the spiral shaft gradually decreases from the large-diameter end to the small-diameter end of the tapered tube, and the pitch of the spiral blades of the spiral shaft gradually decreases from the large-diameter end to the small-diameter end of the tapered tube.

[0007] Optionally, an arc-shaped groove is provided on the circumference of the spiral blade of the spiral shaft, and the side of the extrusion plate facing the inside of the conical tube is set as an arc-shaped surface portion. When the arc-shaped groove rotates to the arc-shaped surface portion, at least part of the extrusion plate protrudes out of the accommodating groove, and when the arc-shaped groove rotates away from the arc-shaped surface portion, the extrusion plate retracts into the accommodating groove.

[0008] Optionally, the extrusion solid-liquid separator also includes a reset mechanism, which includes a spring, a guide shaft and a baffle, one end of the guide shaft is connected to the bottom surface of the extrusion plate, and the other end of the guide shaft passes through the bottom of the tube and is connected to the baffle, the spring is sleeved on the guide shaft, and the two ends of the spring are respectively connected to the outer surface of the bottom of the tube and the baffle, when the arc groove rotates away from the arc surface portion, the spring is in a stretched state, and when the arc groove rotates to the arc surface portion, the spring recovers from the stretched state to a natural state.

[0009] Optionally, the reset mechanism also includes a push rod, one end of which is connected to the baffle, and the other end of which faces the outer surface of the bottom of the tube. When the spring recovers from the stretched state to the natural state, the push rod can hit the outer surface of the bottom of the tube.

[0010] Optionally, the reset mechanism also includes a tamping pin and a bracket, the bracket is connected to the push rod and / or the baffle, one end of a plurality of the tamping pins is connected to the bracket, and the other ends of the plurality of the tamping pins pass through the corresponding liquid outlet holes into the containing groove.

[0011] Optionally, a plurality of insertion holes are provided on the bottom surface of the extrusion plate, and a plurality of the tamping pins are inserted into corresponding insertion holes.

[0012] Optionally, the extrusion solid-liquid separator also includes a shell, the conical tube is horizontally installed in the shell, the shell includes a feed port and a partition, the feed port is connected to the shell and communicated with the large-diameter end of the conical tube, the partition is connected to the shell, the small-diameter end of the conical tube is connected to the partition, and the partition is provided with a discharge port communicated with the small-diameter end of the conical tube.

[0013] Optionally, the extrusion solid-liquid separator also includes a pressure plate, which is connected to the shell through a mounting frame, and the pressure plate is sleeved on the shaft body of the spiral shaft, and an extrusion space is formed between the pressure plate and the discharge port.

[0014] Optionally, the extrusion solid-liquid separator further includes a first box body, a second box body and a third box body, the first box body is connected to the discharge pipe, the second box body is connected to the plurality of liquid outlet holes, and the third box body is connected to the discharge port.

[0015] The beneficial effect of the extrusion solid-liquid separator of the present invention is that the sludge can be transported from the large-diameter end of the conical tube to the small-diameter end through the rotation of the spiral shaft, and the spiral extrusion dehydration effect of the sludge is achieved. The slurry extruded by the spiral enters the receiving tank from the gap. The rotation of the spiral shaft can also make the extrusion plate move along the radial direction of the conical tube, that is, when the slurry passes through the gap, the adjacent extrusion plates can intermittently move in the receiving tank to achieve the initial extrusion dehydration process of the slurry. After the initial extrusion dehydration, the slurry enters the receiving tank. Since the bottom of the conical tube is inclined, the slurry flows from the higher side of the receiving tank to the lower side. In this process, it is squeezed by multiple extrusion plates to achieve the secondary extrusion dehydration process of the slurry. The water that meets the discharge standard is discharged from the liquid outlet, and a small amount of small sludge pieces are discharged from the discharge pipe. In summary, triple dehydration is achieved through spiral extrusion dehydration, primary extrusion dehydration and secondary extrusion dehydration, which significantly improves the dehydration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an extrusion solid-liquid separator according to an embodiment of the present invention; Figure 2 A three-dimensional diagram of an extruded solid-liquid separator according to an embodiment of the present invention; Figure 3 It is a schematic structural diagram of the spiral shaft and the extrusion plate in the extrusion solid-liquid separator of the embodiment of the present invention when they are in sliding contact; Figure 4 It is a schematic diagram of the structure of an extrusion plate in an extrusion solid-liquid separator according to an embodiment of the present invention; Figure 5 for Figure 1 A magnified view of the structure at A; Figure 6 It is a schematic structural diagram of the extrusion plate in the extrusion solid-liquid separator according to an embodiment of the present invention when it is retracted into the accommodating tank.

[0017] Explanation of the reference numerals: 1. Shell; 11. Feed inlet; 12. Partition; 121. Discharge outlet; 2. Extrusion mechanism; 21. Screw shaft; 211. Arc groove; 22. Conical tube; 221. Bottom of tube; 2211. Accommodation groove; 2212. Liquid outlet; 3. Extrusion plate; 31. Socket; 4. Reset mechanism; 41. Ramming pin; 42. Bracket; 43. Push rod; 44. Spring; 45. Guide shaft; 46. Baffle; 5. Pressure plate; 6. Discharge pipe; 7. Gap. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment", "some embodiments", "exemplarily" and "one embodiment" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or embodiments in a suitable manner.

[0021] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0022] The Z axis in the accompanying drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the up, and the negative direction of the Z axis represents the down; the X axis in the accompanying drawings represents the horizontal direction, and is designated as the left and right positions, and the positive direction of the X axis represents the left side, and the negative direction of the X axis represents the right side; the Y axis in the accompanying drawings represents the front and back positions, and the positive direction of the Y axis represents the front side, and the negative direction of the Y axis represents the back side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0023] The embodiment of the present invention provides an extrusion solid-liquid separator, including: an extrusion mechanism 2, the extrusion mechanism 2 includes a spiral shaft 21 and a conical tube 22, the spiral shaft 21 is rotatably arranged in the conical tube 22, the conical tube 22 has a tube bottom 221, the inner surface of the tube bottom 221 is provided with a plurality of receiving grooves 2211 extending along the axial direction of the conical tube 22, and the tube bottom 221 is provided with a plurality of liquid outlet holes 2212 connected with the receiving grooves 2211; an extrusion plate 3, each receiving groove 2211 is provided with a plurality of extrusion plates 3, and a gap 7 is formed between adjacent extrusion plates 3 in each receiving groove 2211, and when the spiral shaft 21 rotates, the extrusion plate 3 can move along the radial direction of the conical tube 22; a discharge pipe 6, and the discharge pipe 6 is connected with the lower side of the receiving groove 2211.

[0024] In this optional embodiment, combined with Figure 1 and Figure 2 As shown in the figure, the rotation of the spiral shaft 21 can transport the sludge from the large-diameter end of the conical tube 22 to the small-diameter end, and the spiral extrusion dehydration effect of the sludge is achieved. The slurry extruded by the spiral enters the receiving groove 2211 from the gap 7. The rotation of the spiral shaft 21 can also make the extrusion plate 3 move along the radial direction of the conical tube 22, that is, when the slurry passes through the gap 7, the adjacent extrusion plates 3 can intermittently move in the receiving groove 2211, so as to achieve the initial extrusion dehydration process of the slurry. After the initial extrusion dehydration, the slurry The liquid enters the containing tank 2211. Since the bottom 221 of the conical tube 22 is inclined, the slurry flows from the higher side of the containing tank 2211 to the lower side. In this process, it is squeezed by multiple squeezing plates 3, realizing the secondary squeezing and dehydration process of the slurry. The water that meets the discharge standard is discharged from the liquid outlet 2212, and a small amount of small sludge pieces are discharged from the discharge pipe 6. In summary, triple dehydration is achieved through spiral squeezing dehydration, primary squeezing dehydration and secondary squeezing dehydration, which significantly improves the dehydration effect.

[0025] Optionally, the diameter of the spiral blade of the spiral shaft 21 gradually decreases from the large-diameter end to the small-diameter end of the tapered tube 22 , and the pitch of the spiral blade of the spiral shaft 21 gradually decreases from the large-diameter end to the small-diameter end of the tapered tube 22 .

[0026] In this optional embodiment, the design of the conical tube 22 enables the space for sludge to be gradually reduced when the sludge moves from the large-diameter end to the small-diameter end of the conical tube 22, thereby increasing the pressure on the sludge and improving the efficiency of solid-liquid separation. At the same time, the reduction in the pitch of the spiral blades means that the number of spiral blades increases per unit length, which causes the sludge to move faster inside the spiral shaft 21. Because the sludge needs to pass through more blades within the same distance, the sludge is more compressed in a smaller space, which helps to promote the solid particles in the sludge to gather more tightly and improve the solid-liquid separation effect of the sludge.

[0027] Furthermore, an arc-shaped groove 211 is provided on the circumference of the spiral blade of the spiral shaft 21, and a side surface of the extrusion plate 3 facing the inside of the conical tube 22 is provided as an arc-shaped portion. When the arc-shaped groove 211 rotates to the arc-shaped portion, at least part of the extrusion plate 3 protrudes out of the accommodating groove 2211, and when the arc-shaped groove 211 rotates away from the arc-shaped portion, the extrusion plate 3 retracts into the accommodating groove 2211.

[0028] In this optional embodiment, if Figure 4 As shown, the receiving groove 2211 is in the shape of a long strip, and three receiving grooves 2211 are provided on the inner surface of the tube bottom 221 along the axial direction (X-axis direction), and each receiving groove 2211 is provided with a plurality of extrusion plates 3, as shown in FIG. Figure 3As shown in FIG. 1 , three arc grooves 211 are provided on the circumference of the lower half of the blade at the end of the spiral blade, and the rest of the circumference of the blade is in sliding contact with the inner circumference of the tapered tube 22. When the blade rotates, the three arc grooves 211 can sequentially slide in contact with the arc surface of the extrusion plate 3, so that the extrusion plate 3 intermittently extends out of the accommodating groove 2211 or retracts into the accommodating groove 2211. Figure 3 As shown, the three arc grooves 211 are in sliding contact with the arc surface parts of the three extrusion plates 3. At this time, the three extrusion plates 3 all protrude from the accommodating grooves 2211. In other words, the arc surface parts of the three extrusion plates 3 protrude from the inner surface of the conical tube 22. When the blade rotates and the rest of the blade circumference is in sliding contact with the arc surface part of the extrusion plate 3, the extrusion plate 3 will be squeezed into the accommodating groove 2211 due to the absence of the arc groove 211.

[0029] Optionally, the extrusion solid-liquid separator also includes a reset mechanism 4, which includes a spring 44, a guide shaft 45 and a baffle 46. One end of the guide shaft 45 is connected to the bottom surface of the extrusion plate 3, and the other end of the guide shaft 45 passes through the bottom of the tube 221 and is connected to the baffle 46. The spring 44 is sleeved on the guide shaft 45, and the two ends of the spring 44 are respectively connected to the outer surface of the bottom of the tube 221 and the baffle 46. When the arc groove 211 rotates away from the arc surface portion, the spring 44 is in a stretched state. When the arc groove 211 rotates to the arc surface portion, the spring 44 recovers from the stretched state to a natural state.

[0030] In this optional embodiment, combined with Figure 5 and Figure 6 As shown, when the arc groove 211 rotates away from the arc surface part, the spring 44 is in a stretched state, and the spring 44 has elastic potential energy. At this time, the extrusion plate 3 is completely accommodated in the accommodating groove 2211. In other words, one side of the arc surface part of the extrusion plate 3 sinks into the accommodating groove 2211, so that other parts of the spiral blades of the spiral shaft 21 will not interfere during rotation. When the arc groove 211 rotates to the arc surface part, the spring 44 releases the elastic potential energy and recovers from the stretched state to the natural state. At this time, at least part of the extrusion plate 3 protrudes from the accommodating groove 2211.

[0031] Furthermore, the reset mechanism 4 also includes a push rod 43, one end of which is connected to the baffle 46, and the other end of the push rod 43 faces the outer surface of the tube bottom 221. When the spring 44 recovers from the stretched state to the natural state, the push rod 43 can hit the outer surface of the tube bottom 221.

[0032] In this optional embodiment, combined with Figure 5 and Figure 6As shown, the outer surface of the bottom 221 of the tube is intermittently impacted by the push rod 43, so that the slurry adhering to the inner bottom surface of the containing groove 2211 gradually flows toward the lower side of the containing groove 2211 under the action of vibration, thereby passing through the extrusion action of multiple extrusion plates 3 in turn. It should be noted that the slurry after spiral extrusion dehydration and initial extrusion dehydration contains very little impurities. Therefore, after the extrusion action of multiple extrusion plates 3, only a small amount of small sludge pieces are discharged from the discharge pipe 6.

[0033] Optionally, the reset mechanism 4 also includes a tamping pin 41 and a bracket 42, the bracket 42 is connected to the top rod 43 and / or the baffle 46, one end of the plurality of tamping pins 41 is connected to the bracket 42, and the other ends of the plurality of tamping pins 41 pass through the corresponding liquid outlet holes 2212 into the accommodating groove 2211.

[0034] In this optional embodiment, combined with Figure 5 and Figure 6 As shown, the diameter of the tamping needle 41 is smaller than the inner diameter of the liquid outlet hole 2212. When the baffle 46 moves back and forth, the tamping needle 41 can intermittently perform a pumping movement in the liquid outlet hole 2212. When the baffle 46 moves toward the bottom surface of the tube bottom 221, the tamping needle 41 moves upward in the liquid outlet hole 2212, so that part of the sludge slurry blocked in the liquid outlet hole 2212 can be brought back to the containing tank 2211 for squeezing and dehydration, thereby improving the dehydration effect. When the baffle plate 46 moves in a direction away from the bottom surface of the tube bottom 221, the tamping needle 41 moves downward in the liquid outlet 2212, so that part of the sludge slurry blocked in the liquid outlet 2212 can be brought out. No matter the sludge slurry is brought back into the containing tank 2211 or brought out, the purpose of tamping the liquid outlet 2212 can be achieved, thereby avoiding the problem of poor liquid discharge caused by blockage of the liquid outlet 2212.

[0035] Furthermore, a plurality of insertion holes 31 are provided on the bottom surface of the extrusion plate 3 , and a plurality of tamping pins 41 are inserted into corresponding insertion holes 31 .

[0036] In this optional embodiment, combined with Figure 5 and Figure 6 As shown, by inserting the top end of the tamping pin 41 into the corresponding socket 31, the tamping pin 41 can limit the extrusion plate 3 when it moves back and forth, so that the extrusion plate 3 will not be slightly tilted. In other words, the distance between each position of the bottom surface of the extrusion plate 3 and the bottom surface of the accommodating groove 2211 can always be kept equal, thereby improving the uniformity of the extrusion plate 3 when extruding the sludge slurry. When the tamping pin 41 needs to be replaced, the tamping pin 41 can be directly pulled out from the corresponding socket 31.

[0037] Optionally, the extrusion solid-liquid separator also includes a shell 1, and the conical tube 22 is horizontally installed in the shell 1. The shell 1 includes a feed port 11 and a partition 12. The feed port 11 is connected to the shell 1 and communicated with the large-diameter end of the conical tube 22. The partition 12 is connected to the shell 1, and the small-diameter end of the conical tube 22 is connected to the partition 12. The partition 12 is provided with a discharge port 121 that is communicated with the small-diameter end of the conical tube 22.

[0038] In this optional embodiment, the sludge to be dehydrated is injected into the large-diameter end of the conical tube 22 from the feed port 11, and then the sludge is transported toward the small-diameter end of the conical tube 22 through the spiral shaft 21, thereby realizing the primary and secondary dehydration processes of the sludge.

[0039] Furthermore, the extrusion solid-liquid separator also includes a pressure plate 5, which is connected to the housing 1 through a mounting frame. The pressure plate 5 is sleeved on the shaft body of the screw shaft 21, and an extrusion space is formed between the pressure plate 5 and the discharge port 121.

[0040] In this optional embodiment, if Figure 1 As shown, the diameter of the pressure plate 5 is larger than the diameter of the discharge port 121, so that the sludge is subjected to greater pressure when passing through the extrusion space, thereby improving the efficiency of solid-liquid separation. In other optional embodiments, the position and pressure of the pressure plate 5 can also be adjusted to control the final water content of the sludge. By adjusting the distance between the pressure plate 5 and the discharge port 121, the extrusion force can be changed to meet different sludge treatment requirements.

[0041] Optionally, the extrusion solid-liquid separator further includes a first box body, a second box body and a third box body, the first box body is connected to the discharge pipe 6 , the second box body is connected to the plurality of liquid outlet holes 2212 , and the third box body is connected to the discharge port 121 .

[0042] In this optional embodiment, if Figure 1 and Figure 2 As shown, along the negative direction of the X-axis are the first box body, the second box body and the third box body respectively. The first box body is connected to the discharge pipe 6, so that it can collect small sludge pieces after secondary extrusion and dehydration. The second box body is connected to multiple liquid outlet holes 2212, that is, the second box body can be located directly below the multiple liquid outlet holes 2212 to collect water after secondary extrusion, and the third box body can be located directly below the discharge port 121 to collect the sludge blocks squeezed by the pressure plate 5.

[0043] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. An extrusion solid-liquid separator, characterized in that: include: An extrusion mechanism (2), the extrusion mechanism (2) comprising a spiral shaft (21) and a conical tube (22), the spiral shaft (21) being rotatably disposed in the conical tube (22), the conical tube (22) having a tube bottom (221), the inner surface of the tube bottom (221) being provided with a plurality of receiving grooves (2211) extending along the axial direction of the conical tube (22), the tube bottom (221) being provided with a plurality of liquid outlet holes (2212) communicating with the receiving grooves (2211); extrusion plates (3), wherein a plurality of the extrusion plates (3) are arranged in each of the accommodating grooves (2211), gaps (7) are formed between adjacent extrusion plates (3) in each of the accommodating grooves (2211), and when the spiral shaft (21) rotates, the extrusion plates (3) can move in the radial direction of the conical tube (22); A discharge pipe (6), the discharge pipe (6) being in communication with a lower side of the containing groove (2211).

2. The extrusion solid-liquid separator according to claim 1, characterized in that: The diameter of the spiral blade of the spiral shaft (21) gradually decreases from the large-diameter end to the small-diameter end of the tapered tube (22), and the pitch of the spiral blade of the spiral shaft (21) gradually decreases from the large-diameter end to the small-diameter end of the tapered tube (22).

3. The extrusion solid-liquid separator according to claim 2, characterized in that: An arc-shaped groove (211) is provided on the circumference of the spiral blade of the spiral shaft (21); a side surface of the extrusion plate (3) facing the inside of the conical tube (22) is provided as an arc-shaped surface; when the arc-shaped groove (211) rotates onto the arc-shaped surface, at least part of the extrusion plate (3) protrudes out of the accommodating groove (2211); when the arc-shaped groove (211) rotates away from the arc-shaped surface, the extrusion plate (3) retracts into the accommodating groove (2211).

4. The extrusion solid-liquid separator according to claim 3, characterized in that: The extrusion solid-liquid separator further comprises a reset mechanism (4), the reset mechanism (4) comprising a spring (44), a guide shaft (45) and a baffle (46), one end of the guide shaft (45) being connected to the bottom surface of the extrusion plate (3), the other end of the guide shaft (45) passing through the tube bottom (221) and being connected to the baffle (46), the spring (44) being sleeved on the guide shaft (45), the two ends of the spring (44) being respectively connected to the outer surface of the tube bottom (221) and the baffle (46), when the arc groove (211) is rotated away from the arc surface portion, the spring (44) is in a stretched state, and when the arc groove (211) is rotated onto the arc surface portion, the spring (44) is restored from the stretched state to a natural state.

5. The extrusion solid-liquid separator according to claim 4, characterized in that: The reset mechanism (4) further comprises a push rod (43), one end of the push rod (43) being connected to the baffle (46), and the other end of the push rod (43) being directed toward the outer surface of the tube bottom (221); when the spring (44) is restored from the stretched state to the natural state, the push rod (43) is able to impact the outer surface of the tube bottom (221).

6. The extrusion solid-liquid separator according to claim 5, characterized in that: The reset mechanism (4) further comprises a tamping pin (41) and a bracket (42); the bracket (42) is connected to the push rod (43) and / or the baffle (46); one end of a plurality of the tamping pins (41) is connected to the bracket (42); the other ends of the plurality of the tamping pins (41) pass through the corresponding liquid outlet holes (2212) into the containing groove (2211).

7. The extrusion solid-liquid separator according to claim 6, characterized in that: The bottom surface of the extrusion plate (3) is provided with a plurality of insertion holes (31), and a plurality of tamping pins (41) are inserted into corresponding insertion holes (31).

8. The extrusion solid-liquid separator according to any one of claims 1 to 7, characterized in that: The extrusion solid-liquid separator further comprises a shell (1), the conical tube (22) being installed horizontally in the shell (1), the shell (1) comprising a feed port (11) and a partition (12), the feed port (11) being connected to the shell (1) and communicating with the large-diameter end of the conical tube (22), the partition (12) being connected to the shell (1), the small-diameter end of the conical tube (22) being connected to the partition (12), and the partition (12) being provided with a discharge port (121) communicating with the small-diameter end of the conical tube (22).

9. The extrusion solid-liquid separator according to claim 8, characterized in that: The extrusion solid-liquid separator further comprises a pressure plate (5), wherein the pressure plate (5) is connected to the housing (1) via a mounting frame, the pressure plate (5) is sleeved on the shaft body of the screw shaft (21), and an extrusion space is formed between the pressure plate (5) and the discharge port (121).

10. The extrusion solid-liquid separator according to claim 8, characterized in that: The extrusion solid-liquid separator further comprises a first box body, a second box body and a third box body, the first box body being in communication with the discharge pipe (6), the second box body being in communication with the plurality of liquid outlet holes (2212), and the third box body being in communication with the discharge port (121).

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