Liquid inlet pipeline of filtrate collecting tank of filter press

Abstract

The utility model belongs to the technical field of hazardous waste treatment, and particularly relates to a filter press filtrate collecting tank liquid inlet pipeline which comprises a front liquid inlet pipe, a sludge collecting tank and a rear liquid inlet pipe, the front liquid inlet pipe is connected with the filtrate collecting tank in a sealed mode, and the rear liquid inlet pipe is connected with a filtrate storage tank in a sealed mode. The sludge collecting tank is as wide as the front liquid inlet pipe and the rear liquid inlet pipe, the depth of the sludge collecting tank is 1.3-1.5 times that of the front liquid inlet pipe and the rear liquid inlet pipe, a vertical wall is arranged on one side of the sludge collecting tank, an inclined slope is arranged on the other side of the sludge collecting tank, the bottom of the front liquid inlet pipe is connected with the upper part of the vertical wall, and the bottom of the rear liquid inlet pipe is connected with the lower part of the inclined slope. According to the utility model, the sludge accumulated in the pipeline can be greatly reduced, the filtrate is clearer, the sludge entering the filtrate collecting tank is obviously reduced, and the cleaning period of the filtrate tank is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of hazardous waste treatment technology, and in particular to an inlet pipe for a filter press filtrate collection tank. Background Technology

[0002] Physicochemical treatment processes, as one of the main technologies for hazardous waste treatment, have advantages such as relatively low treatment costs and small equipment footprint.

[0003] In chemical precipitation treatment processes, wastewater is primarily rendered harmless through various chemical reactions in reaction tanks. After treatment, the wastewater passes through a solid-liquid separation system, and the sludge is sent to a landfill for safe disposal. The filtrate is transported via pipeline to a storage tank for clarification and further treatment for reuse / discharge. Existing solid-liquid separation equipment mainly consists of chamber filter presses. During sludge unloading, some sludge inevitably falls into the filtrate collection tank, or due to minor deformation of the filter plates and frames, uneven filter cloth, or other reasons, some sludge leaks into the filtrate collection tank. Therefore, long-term operation can easily lead to sludge accumulation in the pipelines, affecting the effluent. At the same time, some sludge enters the filtrate storage tank, causing sludge accumulation in the tank. Therefore, the filtrate still requires a sedimentation process after solid-liquid separation. Generally, the solid-liquid separation equipment is located on the second floor of the workshop, and the equipment height is relatively low, making it unsuitable for large-volume horizontal flow sedimentation equipment.

[0004] Therefore, a small device / facility is needed to remove suspended solids (sludge) during the filtrate transport to the filtrate tank in order to improve production efficiency. Utility Model Content

[0005] This utility model provides an inlet pipe for a filter press filtrate collection tank, which aims to provide a small device / facility to remove suspended solids (sludge) during the filtrate transportation to the filtrate tank in order to improve production efficiency.

[0006] This utility model provides the following technical solution:

[0007] A filter press filtrate collection tank inlet pipe includes a front inlet pipe, a sludge collection tank, and a rear inlet pipe. The front inlet pipe is sealed to the filtrate collection tank, and the rear inlet pipe is sealed to the filtrate storage tank. The sludge collection tank has the same width as the front and rear inlet pipes, and its depth is 1.3-1.5 times the depth of the front and rear inlet pipes. The sludge collection tank has a vertical wall on one side and an inclined slope on the other side. The bottom of the front inlet pipe is connected to the upper part of the vertical wall, and the bottom of the rear inlet pipe is connected to the upper part of the inclined slope. A sludge discharge pipe is provided at the bottom of the sludge collection tank, and a valve is connected to the sludge discharge pipe.

[0008] In one possible implementation, the inclination angle of the inclined slope is 45-60°.

[0009] In one possible implementation, a filter plate is provided at the inclined slope, and the inclination angle of the filter plate is adapted to the inclination angle of the inclined slope.

[0010] The filter plate is provided with filter holes, and the central axis of the filter holes is parallel to the central axis of the inlet pipe and the rear inlet pipe, so that the filtrate can flow horizontally through the filter holes.

[0011] In one possible implementation, the size of the filter holes on the filter plate gradually increases from bottom to top.

[0012] In one possible implementation, the filter plate is a rectangular plate, a limiting plate is provided on the inclined slope, the limiting plate and the inclined slope form a slot, the rectangular plate is inserted into the slot, and the width of the rectangular plate is adapted to the width of the sludge collection tank.

[0013] In one possible implementation, the filter plate is an arc-shaped plate, a sleeve is fixed on the side plate of the rear liquid inlet pipe, an insertion rod is provided on the back side of the filter plate, the insertion rod is inserted into the sleeve to complete the upper positioning of the arc-shaped plate, and the lower part of the arc-shaped plate is in contact with the pipe body of the rear liquid inlet pipe.

[0014] In one possible implementation, the filter plate extends into the rear inlet pipe and is 2 / 3 the height of the rear inlet pipe.

[0015] In one possible implementation, the inlet pipe, sludge collection tank, and rear inlet pipe are integrally formed.

[0016] In one possible implementation, the inlet pipe, sludge collection tank, and rear inlet pipe are provided with cover plates.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0018] In this utility model, a filter press filtrate collection tank inlet pipe includes a front inlet pipe, a sludge collection tank, and a rear inlet pipe. The front inlet pipe guides the filtrate in the filtrate collection tank through the sludge collection tank, which is used to settle and filter the sludge in the filtrate. The rear inlet pipe sends the treated filtrate into the filtrate storage tank. This can significantly reduce the sludge accumulated in the pipe, make the filtrate clearer, significantly reduce the amount of sludge entering the filtrate collection tank, and greatly extend the cleaning cycle of the filtrate tank.

[0019] The sludge collection tank has a vertical wall on the side near the inlet pipe and an inclined slope on the side near the rear inlet pipe. The vertical wall on the side near the inlet pipe prevents the high-speed liquid from directly impacting the sedimentation zone, reducing turbulence. The inclined slope has an angle of 45-60° to balance sludge sliding and reduce disturbance, and extends the sedimentation zone without obstructing the flow of filtrate.

[0020] The filter plate has progressively larger pore sizes from bottom to top, increasing from 10mm at the bottom to 25mm. The filter plate is at a 45° angle to the horizontal. This 45° installation angle optimizes the fluid flow path, reduces local eddies and resistance, and makes the fluid distribution more uniform. The pore size gradually increases from bottom to top, forming a pore size gradient. The smaller pores at the bottom can trap larger particles of impurities, while the larger pores at the top can improve the filtrate throughput. Since the filtrate contains less sludge, this design improves the overall filtration efficiency while maintaining the filtration effect.

[0021] The inner wall of the sleeve constrains the horizontal displacement of the insertion rod, the arc-shaped bottom fits against the bottom surface of the inlet pipe to restrict the vertical displacement, and the extension line of the plate body is collinear with the slope surface to ensure a fixed angle, forming a multi-dimensional limit to prevent the filter plate from shifting due to vibration or fluid impact. The bottom of the filter plate fits seamlessly with the bottom surface of the inlet pipe to form a continuous and smooth flow channel, reducing turbulence and pressure loss caused by structural abrupt changes in the fluid and reducing energy consumption.

[0022] The insert rod is located on the back side of the filter plate (not the front side) to avoid interfering with the main flow direction, prevent eddies from forming around the insert rod that could lead to sludge accumulation, and reduce the risk of wear from fluid impact. Attached Figure Description

[0023] Figure 1 A schematic diagram of the installation structure of the inlet pipe of the filter press filtrate collection tank provided in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the inlet pipe of the filter press filtrate collection tank provided in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the sludge collection tank structure of the inlet pipe of the filter press filtrate collection tank provided in Embodiment 1 of this utility model;

[0026] Figure 4 This is a schematic diagram of the filter plate structure of the inlet pipe of the filter press filtrate collection tank provided in Embodiment 1 of this utility model;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the sludge collection tank of the filter press filtrate collection tank in embodiment 1 of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal structure of the sludge collection tank of the filter press filtrate collection tank inlet pipe provided in Embodiment 2 of this utility model;

[0029] Figure 7 for Figure 6 Enlarged structural diagram of section A in the middle;

[0030] Figure 8 This is a schematic diagram of the filter plate structure of the inlet pipe of the filter press filtrate collection tank provided in Embodiment 2 of this utility model;

[0031] Figure 9 This is a schematic diagram of the cross-sectional structure of a sludge collection tank in the inlet pipe of a filter press filtrate collection tank provided in Embodiment 2 of this utility model.

[0032] Figure label:

[0033] 1. Filter press; 2. Filtrate collection tank; 3. Inlet pipe; 4. Filtrate storage tank;

[0034] 301. Cover plate; 302. Inlet liquid pipe; 303. Flange; 304. Sludge collection tank; 305. Sludge discharge pipe; 306. Inclined slope; 307. Rear liquid inlet pipe; 308. Limiting plate; 309. Slot; 310. Rectangular plate; 311. Filter hole; 312. Sleeve; 313. Insertion hole; 314. Arc-shaped plate; 315. Insert rod; 316. Ear plate. Detailed Implementation

[0035] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0036] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0037] In this embodiment of the invention, 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. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0038] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0039] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0040] In the prior art, filtrate collection tanks 2 are provided on both sides of the filter press 1. After the filter press 1 performs filtration, the filtrate is introduced into the filtrate collection tank 2 through the guide plate at the bottom. When unloading sludge, the guide plate at the bottom rotates downward around the axis, and a sludge discharge port is formed between the two guide plates. During the sludge unloading process, some sludge will inevitably fall into the filtrate collection tank 2, or some sludge will leak into the filtrate collection tank 2 due to slight deformation of the plate frame, uneven filter cloth, or other reasons.

[0041] After the filtrate collection tank 2 merges at one end, it is connected to the main pipeline through flange 303. The rear end of the main pipeline is sealed to the inlet of the filtrate storage tank 4 through flange 303.

[0042] After being filtered by the filter press 1, the filtrate will be collected into the filtrate storage tank 4 through the filtrate collection tank 2 and the main pipeline. Some of the sludge that falls into the filtrate collection tank 2 will also be carried into the filtrate storage tank 4, which leads to the problem of sludge accumulation in the filtrate storage tank 4.

[0043] like Figure 1 As shown, in this utility model, a filter press 1 filtrate collection tank 2 inlet pipe 3 is provided between the filtrate collection tank 2 and the filtrate storage tank 4 for filtering and collecting sludge in the filtrate, thereby preventing sludge from depositing into the filtrate storage tank 4.

[0044] Specifically, such as Figure 2 As shown, a filter press 1 has a filtrate collection tank 2 inlet pipe 3, which includes a front inlet pipe 302, a sludge collection tank 304 and a rear inlet pipe 307. The front inlet pipe 302 is used to guide the filtrate in the filtrate collection tank 2 through the sludge collection tank 304. The sludge collection tank 304 is used to filter the sludge in the filtrate. The rear inlet pipe 307 is used to send the treated filtrate into the filtrate storage tank 4.

[0045] The front end of the inlet pipe 302 is provided with a flange 303, and the rear end is connected to the sludge collection tank 304. The inlet pipe 302 is sealed to the main pipe of the filtrate collection tank 2 through the flange 303. The filtrate collected in the filtrate collection tank 2 is sent into the sludge collection tank 304 at the rear through the inlet pipe 302.

[0046] The sludge collection tank 304 is located between the inlet pipe 302 and the rear inlet pipe 307. To facilitate sludge sedimentation, the sludge collection tank 304 is deeper than both the inlet pipe 302 and the rear inlet pipe 307, by at least 30%-50%, ensuring sufficient sludge settling and preventing resuspension. To improve sedimentation efficiency and minimize disturbance within the sludge collection tank 304, the side of the sludge collection tank 304 closest to the inlet pipe 302 is designed as a vertical wall, while the side of the sludge collection tank 304 closest to the rear inlet pipe 307... The inclined slope 306 is set up with a vertical wall on one side of the inlet pipe 302 to block the high-speed inflow of liquid from directly impacting the sedimentation zone and reduce turbulence. The height of the vertical wall should be at least 0.5-1 times higher than the diameter of the inlet pipe. The inclined slope 306 has an inclination angle of 45-60° to balance sludge sliding and reduce disturbance, and to extend the sedimentation zone without obstructing the flow of filtrate. A sludge discharge port is also set at the bottom of the sludge collection tank 304, which is connected to the sludge discharge pipe 305, and the sludge discharge pipe 305 is connected to a valve.

[0047] One end of the rear inlet pipe 307 is connected to the sludge collection tank 304, and the other end is also equipped with a flange 303. The rear inlet pipe 307 is sealed to the inlet of the filtrate storage tank 4 through the flange 303, so that the filtrate after sedimentation and filtration in the sludge collection tank 304 is sent to the filtrate storage tank 4 for storage.

[0048] Specifically, the inlet pipe 302 and the outlet pipe 307 are U-shaped pipes, each including a front side plate, a rear side plate and a U-shaped bottom plate;

[0049] The sludge collection tank 304 includes a front trapezoidal plate, a rear trapezoidal plate, a rectangular bottom plate, a left inclined slope 306, and a right side plate. The front trapezoidal plate, the rear trapezoidal plate, the rectangular bottom plate, the left inclined slope 306, and the right side plate enclose a trapezoidal cavity for sedimentation and filtration of sludge in the flowing filter water.

[0050] The front trapezoidal plate and rear trapezoidal plate of the sludge collection tank 304 are in the same plane as the front side plate and rear side plate. The U-shaped bottom plate of the inlet pipe 302 is connected to the upper part of the vertical wall, and the U-shaped bottom plate of the rear inlet pipe 307 is connected to the upper part of the inclined slope 306 to avoid turbulence or dead corners of sludge deposition caused by abrupt structural changes.

[0051] Specifically, the sludge discharge port is located in the middle of the rectangular base plate. To facilitate smoother sludge discharge, the rectangular base plate can be made into a cone shape, with the sludge discharge port located at the bottom of the cone, thus allowing the sludge on the base plate to be easily guided to the sludge discharge port.

[0052] Furthermore, a filter plate is installed on the inclined slope 306. The inclination of the filter plate is adapted to the inclination of the inclined slope 306 of the sludge collection tank 304. The filter plate extends into the rear liquid inlet pipe 307 at an inclination, and the height of the top of the filter plate is 2 / 3 of the height of the rear liquid inlet pipe 307. Through gravity separation, larger particles are intercepted by the filter plate and slide into the sludge area, while the filtrate enters the rear liquid inlet pipe 307 through the plate holes.

[0053] The inlet pipe 302, sludge collection tank 304 and rear inlet pipe 307 are integrally formed, eliminating the weak sealing points of the split connection.

[0054] The central axis of the filter holes of the filter plate is parallel to the central axis of the rear liquid inlet pipe 307, so that the filtrate can flow horizontally through the filter holes of the filter plate and reduce the turbulence generated when the filtrate passes through the filter holes 311.

[0055] The filter plate has progressively larger pore sizes from bottom to top, increasing from 10mm at the bottom to 25mm. The filter plate is at a 45° angle to the horizontal. This 45° installation angle optimizes the fluid flow path, reduces local eddies and resistance, and makes the fluid distribution more uniform. The pore size gradually increases from bottom to top, forming a pore size gradient. The smaller pores at the bottom can trap larger particles of impurities, while the larger pores at the top can improve the filtrate throughput. Since the filtrate contains less sludge, this design improves the overall filtration efficiency while maintaining the filtration effect.

[0056] In Example 1, specifically, a slot 309 is provided on the inclined slope 306 of the sludge collection tank 304 for inserting a filter plate, thereby fixing the filter plate on the inclined slope 306. Specifically, a limiting plate 308 is fixed on the inclined slope 306. One side of the limiting plate 308 is fixedly connected to the inclined slope 306, and the other side is fixedly connected to the trapezoidal side plate of the sludge collection tank 304. An extension rod is integrally provided at the upper end of the limiting plate 308. The extension rod is parallel to the inclined slope 306, and a gap is left between the extension rod and the inclined slope 306. Due to the large weight of the filter plate, after being inserted into the slot 309, it only tends to move downwards. When the filter plate is inserted into the gap, the inclined slope 306 limits the lower side of the filter plate, the limiting plate 308 limits the lower end face of the filter plate, the extension rod limits the upper side of the filter plate, and the trapezoidal side plates on both sides of the sludge collection tank 304 limit the two sides of the filter plate, thereby completing the fixation of the filter plate. The multi-faceted limiting effectively resists vibration or fluid impact, preventing the filter plate from shifting or falling off. The filter plate is directly inserted into the slot 309 formed by the extension rod and the inclined slope 306 without the need for complicated fasteners. Disassembly only requires vertical lifting, which facilitates cleaning or replacement of the filter plate and reduces downtime.

[0057] The extension rod and the limiting plate 308 are integrally formed to prevent the filter plate from warping or deforming under pressure, ensuring long-term stable operation. The slot 309 and the limiting components can be made of stainless steel or polymer materials to adapt to the high humidity and high corrosion environment of sludge.

[0058] The filter plate is set as a rectangular plate 310, and the width of the filter plate is adapted to the width of the sludge collection tank 304. Since the front trapezoidal plate, the rear trapezoidal plate, the front side plate, and the rear side plate of the sludge collection tank 304 are in the same plane, the width of the filter plate is also adapted to the width of the rear liquid inlet pipe 307.

[0059] In Example 2, the filter plate is configured as an arc-shaped plate 314. The upper part is rectangular and adaptable to the upper part of the rear liquid inlet pipe 307, and the lower part is arc-shaped and adaptable to the bottom of the rear liquid inlet pipe 307. Inclined sleeves 312 are fixed on the side walls on both sides of the rear liquid inlet pipe 307. A through insertion hole 313 is provided in the sleeve 312. An insertion rod 315 adapted to the sleeve 312 is provided on the filter plate. The inclination angle of the sleeve 312 is consistent with the installation path of the filter plate. When the insertion rod 315 is inserted, it can slide naturally into the sleeve 312 through the inclined surface to achieve "blind insertion" and quick positioning. The filter plate is positioned by inserting the insert rod 315 into the sleeve 312. The inner wall of the sleeve 312 restricts the horizontal displacement of the insert rod 315. The arc-shaped bottom fits against the bottom surface of the inlet pipe to restrict the vertical displacement. The extension line of the plate body is collinear with the slope surface to ensure a fixed angle, forming a multi-dimensional positioning to prevent the filter plate from shifting due to vibration or fluid impact. The bottom of the filter plate fits seamlessly with the bottom surface of the inlet pipe to form a continuous and smooth flow channel, reducing turbulence and pressure loss caused by structural changes, reducing energy consumption. The plate body is located on the extension line of the inclined slope 306.

[0060] The insertion rod 315 is set on the back water surface of the filter plate, that is, on the side facing the rear liquid inlet pipe 307. The insertion rod 315 is located on the back water surface of the filter plate (non-current side) to avoid interfering with the mainstream direction, prevent eddies from forming around the insertion rod 315 that could lead to sludge accumulation, and reduce the risk of wear on the insertion rod 315 due to fluid impact.

[0061] Specifically, two ear plates 316 are fixed on one side of the arc-shaped plate 314, and a plug rod 315 is fixed on the ear plate 316 and arranged parallel to the arc-shaped plate 314.

[0062] Furthermore, cover plates 301 are also provided on the inlet pipe 302, the sludge collection tank 304 and the rear inlet pipe 307.

[0063] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A filter press filtrate collection tank inlet pipe, characterized in that, The system includes an inlet pipe (302), a sludge collection tank (304), and a rear inlet pipe (307). The inlet pipe (302) is sealed to the filtrate collection tank (2), and the rear inlet pipe (307) is sealed to the filtrate storage tank (4). The sludge collection tank (304) is the same width as the inlet pipe (302) and the rear inlet pipe (307), and the depth of the sludge collection tank (304) is equal to the depth of the inlet pipe (302) and the rear inlet pipe (307). The depth of the inlet pipe (307) is 1.3-1.5 times that of the sludge collection tank (304). One side of the sludge collection tank (304) is provided with a vertical wall and the other side is provided with an inclined slope (306). The bottom of the inlet pipe (302) is connected to the upper part of the vertical wall, and the bottom of the rear inlet pipe (307) is connected to the upper part of the inclined slope (306). The bottom of the sludge collection tank (304) is provided with a sludge discharge pipe (305), and the sludge discharge pipe (305) is connected with a valve.

2. The inlet pipe of the filter press filtrate collection tank according to claim 1, characterized in that, The inclination angle of the inclined slope (306) is 45-60°.

3. The inlet pipe of the filter press filtrate collection tank according to claim 2, characterized in that, A filter plate is provided at the inclined slope (306), and the inclination angle of the filter plate is adapted to the inclination angle of the inclined slope (306).

4. The inlet pipe of the filter press filtrate collection tank according to claim 3, characterized in that, The filter plate is provided with filter holes (311), and the central axis of the filter holes (311) is parallel to the central axis of the inlet pipe (302) and the outlet pipe (307) so that the filtrate can flow horizontally through the filter holes (311).

5. The inlet pipe of the filter press filtrate collection tank according to claim 4, characterized in that, The size of the filter holes on the filter plate gradually increases from bottom to top.

6. The inlet pipe of the filter press filtrate collection tank according to claim 5, characterized in that, The filter plate is a rectangular plate (310). A limiting plate (308) is provided on the inclined slope (306). The limiting plate (308) and the inclined slope (306) form a slot (309). The rectangular plate (310) is inserted into the slot (309). The width of the rectangular plate (310) is adapted to the width of the sludge collection tank (304).

7. The inlet pipe of the filter press filtrate collection tank according to claim 5, characterized in that, The filter plate is an arc-shaped plate (314). A sleeve (312) is fixed on the side plate of the rear liquid inlet pipe (307). A rod (315) is provided on the back side of the filter plate. The rod (315) is inserted into the sleeve (312) to complete the upper positioning of the arc-shaped plate (314). The lower part of the arc-shaped plate (314) is in contact with the pipe body of the rear liquid inlet pipe (307).

8. The inlet pipe of the filter press filtrate collection tank according to claim 6 or 7, characterized in that, The filter plate extends into the rear inlet pipe (307) and its height is 2 / 3 of the height of the rear inlet pipe (307).

9. The inlet pipe of the filter press filtrate collection tank according to claim 1, characterized in that, The inlet pipe, sludge collection tank (304) and rear inlet pipe (307) are integrally formed.

10. The inlet pipe of the filter press filtrate collection tank according to claim 9, characterized in that, The inlet pipe, sludge collection tank (304) and rear inlet pipe (307) are equipped with cover plates (301).

Images