Filter pressing and suction filtration all-in-one machine and filter pressing and suction filtration equipment

By using the Great Wall type filter plate unit and micro-pressure circulation unit in the pressure filtration and suction filtration integrated machine, the problems of filter cloth clogging and sight glass contamination are solved, efficient filtration separation and real-time monitoring are achieved, and production efficiency and operation are improved. Safety.

CN222384365UActive Publication Date: 2025-01-24ZHEJIANG HISOAR PHARMA +2
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Patent Information

Application Number
CN202420995204.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-09
Publication Date
2025-01-24
Estimated Expiration
2034-05-09

AI Technical Summary

Technical Problem

During the filter pressing or suction filtration process, the filter cloth lacks effective support, which can easily lead to clogging or damage, and the inner wall of the view mirror is prone to adhere to materials, affecting monitoring and operation safety.

Method used

An integrated machine for pressure filtration and suction filtration was designed, using a Great Wall-type filter plate unit to support the filter cloth, reducing the support contact area to avoid clogging, and monitoring the status of the filter plate unit online through a micro-pressure circulation unit. At the same time, the sight glass self-cleaning unit uses compressed air to form a fan-shaped purge airflow to remove material attachments on the inner surface of the sight glass.

Benefits of technology

It effectively reduces filter cloth clogging, improves filtration separation efficiency, ensures real-time monitoring of the filter plate unit and cleaning of the sight glass, and improves operational safety and production efficiency.

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Abstract

The utility model discloses a filter pressing and suction filtration all-in-one machine and filter pressing and suction filtration equipment. The filter pressing and suction filtration all-in-one machine comprises an operation cavity, a filter plate unit is arranged in the operation cavity, the operation cavity is divided into a discharging cavity and a liquid collecting cavity by the filter plate unit, the discharging cavity is provided with a feeding port, and the liquid collecting cavity is provided with a discharging port; the filter plate unit comprises filter cloth and a filter screen frame located below the filter cloth, and the sight glass self-cleaning unit is installed outside the operation cavity and comprises a sight glass support and a sight glass installed on the sight glass support; and the micro-pressure circulating unit comprises a circulating pipe arranged between the feeding pipe and the discharging opening, and a monitoring sight glass is arranged on the circulating pipe. According to the filter pressing and suction filtration all-in-one machine, the filter cloth blocking phenomenon is reduced, whether the filter plate units are damaged or not is monitored on line in real time, and fan-shaped blowing airflow is formed towards the inner surface of the sight glass through compressed air, so that operators can observe the dynamic suction and filter pressing production process in real time.
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Description

Technical Field

[0001] The present application relates to the technical field of material filtration and separation, and in particular to a filter press and filtration all-in-one machine and filter press and filtration equipment. Background Art

[0002] In the food, pharmaceutical, chemical and other industries, the filtration and separation of many materials are mainly completed by pressure filtration or suction filtration. However, in the actual production process, the materials lack effective support for the filter screen or filter cloth during the filtration process, and there are cases where the filter bag or filter screen is damaged or blocked. If it is not discovered in time, it will cause product contamination or affect normal operations. In addition, the sight glass on the filter housing often adheres to the inner wall of the sight glass due to material splashing, evaporation, condensation, etc., making it impossible to effectively observe and monitor the material production process in real time. Utility Model Content

[0003] The purpose of the present application is to provide an integrated filter press and filtration machine and filter press and filtration equipment, which can effectively support the filter cloth while reducing the support contact area, thereby reducing the filter cloth clogging phenomenon, and monitor whether the filter plate unit is damaged online at all times, observe the material status, and form a fan-shaped purge airflow to the inner surface of the sight glass through compressed air to clean the material attachments or mixed liquids generated on the inner surface of the sight glass during production, which is beneficial for operators to observe the dynamic extraction and filter press production process at all times.

[0004] The technical solution of the present application provides an integrated filter press and filtration machine, comprising: a working chamber, a filter plate unit is arranged in the working chamber, the filter plate unit divides the working chamber into a discharge chamber and a liquid collection chamber, the discharge chamber is provided with a feed inlet, and the liquid collection chamber is provided with a discharge outlet; the filter plate unit comprises a filter cloth and a filter screen frame located below the filter cloth, the filter screen frame comprises a filter plate frame and a filter plate net located below the filter plate frame, the filter plate frame comprises at least two concentrically arranged support rings, the filter plate net is provided with filter holes, and the filter holes are connected to the space between two adjacent support rings; a sight glass self-cleaning unit, the sight glass self-cleaning unit is installed outside the working chamber, comprises a sight glass bracket and a sight glass installed on the sight glass bracket, the sight glass bracket is provided with a purge hole, and the outlet of the purge hole faces the inner surface of the sight glass; a micro-pressure circulation unit, the micro-pressure circulation unit comprises a circulation pipe installed between the feed pipe and the discharge outlet, and a monitoring sight glass is installed on the circulation pipe.

[0005] Optionally, the filter plate frame and the filter plate mesh are located on the same plate, at least two of the support rings are arranged on the front side of the plate, the filter holes are opened on the back side of the plate, and the filter holes are connected to the space between the corresponding two support rings.

[0006] Optionally, a material distribution unit is further provided in the working chamber, and the material distribution unit includes a material distributor, and the material distributor is connected to a feed pipe extending from the feed port into the discharge chamber, and at least two evenly arranged material distribution ports are provided at the bottom of the material distributor.

[0007] Optionally, the distributor is connected to the feed pipe by a clamping ring, the distributor is rotatably arranged around the clamping ring, and an inclined distribution pipe is connected to the upper side of the material distribution port.

[0008] Optionally, the integrated filter press and filtration machine also includes a sight hole lamp self-cleaning unit installed outside the working chamber, the sight hole lamp self-cleaning unit includes a sight hole lamp bracket and a sight hole lamp and an observation mirror installed on the sight hole lamp bracket, the sight hole lamp bracket is provided with a blowing hole, the sight hole lamp is located on the front side of the observation mirror, and the blowing hole is located on the back side of the observation mirror and faces the observation mirror.

[0009] Optionally, the integrated filter press and filtration machine also includes a temperature control unit, which includes a first temperature control interlayer arranged on the outside of the discharge chamber and a second temperature control interlayer arranged on the outside of the feed pipe, and the first temperature control interlayer and the second temperature control interlayer are connected through a connecting pipe.

[0010] Optionally, the integrated filter press and filtration machine further comprises a safety anti-pollution unit, which comprises a breathing tube and a respirator and a breathing valve installed on the breathing tube, wherein a sterile filter element is arranged in the respirator.

[0011] Optionally, a pressure gauge and a bursting disc are connected to the breathing tube.

[0012] Optionally, the integrated filter press and filtration machine further comprises a liquid collecting tank, the inlet of the liquid collecting tank is connected to the liquid outlet via a liquid collecting pipe, a liquid collecting valve is installed on the liquid collecting pipe, and the liquid collecting tank is also connected to a vacuum pipe.

[0013] The present application also provides a filter pressing and filtration equipment, comprising a filter pressing and filtration integrated machine and an isolator as described in any one of the above, wherein the filter pressing and filtration integrated machine is embedded in the isolator.

[0014] The above technical solution has the following beneficial effects:

[0015] The integrated filter press and filtration machine and the filter press and filtration equipment provided by the present application adopt a unique Great Wall type filter plate unit to effectively support the filter cloth while reducing the support contact area, thereby reducing filter cloth clogging, shortening the filtration separation time, and improving production efficiency. Through the micro-pressure circulation unit, the filter plate unit is monitored online in real time to see if there is any damage, and the material status is observed. The sight glass self-cleaning unit uses compressed air to form a fan-shaped purge airflow to the inner surface of the sight glass, which cleans the material attachments or mixed liquids generated on the inner surface of the sight glass during production, which is beneficial for the operator to observe the dynamic extraction and pressure filtration production process at all times. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a filter press and filtration machine in one embodiment of the present application.

[0017] Figure 2 Schematic diagram of the layered structure of the filter plate unit in one embodiment of the present application.

[0018] Figure 3 A schematic diagram of the layered structure of the filter frame in one embodiment of the present application.

[0019] Figure 4 It is a structural schematic diagram of a self-cleaning unit of a mirror in one embodiment of the present application.

[0020] Figure 5 This is a schematic diagram of the structure of the mirror self-cleaning unit during purging in one embodiment of the present application.

[0021] Figure 6 Schematic diagram of the structure of a material distribution unit in one embodiment of the present application.

[0022] Figure 7 It is a schematic diagram of the structure of the self-cleaning unit of the sight hole lamp in one embodiment of the present application.

[0023] Figure 8 This is a structural schematic diagram of a liquid collecting tank connected to the bottom of the working chamber in one embodiment of the present application.

[0024] Fig. 9 This is a schematic diagram of the structure of the filter press and filtration equipment in one embodiment of the present application.

[0025] Reference Numbers

[0026] 1- micro-pressure circulation unit, 11- circulation pipe, 12- micro-pressure pump, 13- monitoring mirror, 131 first monitoring mirror, 132- second monitoring mirror, 14- circulation valve, 15- vent valve, 16- sampling valve.

[0027] 2-temperature control unit, 21-first temperature control interlayer, 22-connecting pipe, 23-second temperature control interlayer, 24-heat source inflow pipe, 25-heat pipe outflow pipe.

[0028] 3- material distribution unit, 31- feeding pipe, 32- material distributor, 33- distribution pipe, 34- clamping ring.

[0029] 4-sight mirror self-cleaning unit, 41-pneumatic button, 42-sight mirror pneumatic valve, 43-compressed air, 44-sight mirror, 45-purge hole, 46-attachment, 47-sight mirror bracket.

[0030] 5-sight hole lamp self-cleaning unit, 51-sight hole lamp switch, 52-pneumatic valve, 53-observation mirror, 54-sight hole lamp, 55-sight hole for mirror blowing, 56-sight hole lamp bracket.

[0031] 6-filter plate unit, 61-filter cloth, 62-filter mesh frame, 621-filter plate frame, 622-filter plate mesh, 623-support ring, 624-filter hole.

[0032] 7-Discharging cavity.

[0033] 8-Liquid collection cavity.

[0034] 9-Liquid collection valve.

[0035] 10-liquid collecting tank, 101-vacuum valve.

[0036] 110-safety anti-pollution unit, 111-respirator, 112-breathing valve, 113-bursting disc, 114-pressure gauge, 115-breathing tube.

[0037] 120-isolator, 121-vacuum drying oven. DETAILED DESCRIPTION

[0038] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0039] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a variety of structural modes and implementation modes can be replaced by those skilled in the art. Therefore, the following specific implementation methods and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction on the technical solution of the utility model.

[0040] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0041] The present application provides a filter pressing and extraction integrated machine, comprising: a working chamber, a sight glass self-cleaning unit 4 and a micro-pressure circulation unit 1.

[0042] Please refer to Figure 1 A filter plate unit 6 is arranged in the working chamber, and the filter plate unit 6 divides the working chamber into a discharge chamber 7 and a liquid receiving chamber 8. The discharge chamber 7 is provided with a feed inlet, and the liquid receiving chamber 8 is provided with a discharge port.

[0043] The filter plate unit 6 includes a filter cloth 61 and a filter screen frame 62 located below the filter cloth 61, the filter screen frame 62 includes a filter plate frame 621 and a filter plate net 622 located below the filter plate frame 621, the filter plate frame 621 includes at least two concentrically arranged support rings 623, and the filter plate net 622 is provided with a filter hole 624, and the filter hole 624 is connected to the space between two adjacent support rings 623. Figures 2 to 3 As shown, the solids in the material are separated into solid and liquid through the filter cloth 61 and the filter frame 62, and the liquid phase enters the liquid collection chamber 8, completing the suction filtration or pressure filtration production process. At least two concentrically arranged support rings 623 make the cross section of the filter plate frame 621 present a "J"-shaped continuous structure. The "J"-shaped continuous structure realizes intermittent and suspended support for the filter cloth 61, reducing the supporting contact area of ​​the filter cloth 61, thereby reducing the clogging phenomenon of the filter cloth 61, shortening the filtration separation time, and improving production efficiency.

[0044] The mirror self-cleaning unit 4 is installed outside the working chamber, and includes a mirror bracket 47 and a mirror 44 installed on the mirror bracket 47. The mirror bracket 47 is provided with a purge hole 45, and the outlet of the purge hole 45 faces the inner surface of the mirror 44. The mirror bracket 47 is installed on the outer wall of the discharge chamber 7. Figures 4 to 5 As shown, the purge hole 45 is connected to a compressed gas channel and a sight glass pneumatic valve 42 installed on the compressed gas channel, and a pneumatic button 41 is installed on the sight glass pneumatic valve 42. When the clean compressed air 43 passes through the sight glass pneumatic valve 42, it passes through the multi-channel purge hole 45 with a certain angle to form a fan-shaped purge airflow to the inner surface of the sight glass 44, and the material attachment 46 or mixed liquid on the inner surface of the sight glass 44 is purged clean, which is conducive to the operator to observe the dynamic extraction and filter pressing production process at any time. According to the production observation requirements, the pneumatic button 41 can be pressed at any time to perform the jog purge. In order to achieve a more ideal purge effect and facilitate the operator to observe the dynamic view of the sight glass 44, the purge medium can be selected according to the material characteristics. Clean compressed air 43, pure steam, nitrogen, etc.

[0045] The micro-pressure circulation unit 1 includes a circulation pipe 11 installed between the feed pipe 31 and the discharge port, and a monitoring mirror 13 is installed on the circulation pipe 11. The filtrate of the liquid collection chamber 8 flows back to the feed pipe 31 through the monitoring mirror 13 on the circulation pipe 11 to complete the micro-pressure online circulation. During the production process, by observing the state of the filtrate in the monitoring mirror 13 at any time, if it is found that there are solids or abnormal suspended matter in the filtrate, it is judged that the filter cloth 61 is leaking or damaged, and timely repairs are made to avoid waste. A circulation valve 14 and a micro-pressure pump 12 can also be set on the circulation pipe 11. The circulation valve 14 controls the opening and closing of the circulation pipe 11, and the micro-pressure pump 12 provides power for the circulation.

[0046] like Figure 1 As shown, the monitoring mirror 13 can be provided with two, namely, a first monitoring mirror 131 and a second monitoring mirror 132 installed on the circulation pipe 11. The portion of the circulation pipe 11 between the first monitoring mirror 131 and the second monitoring mirror 132 is U-shaped, and a sampling valve 16 and a vent valve 15 are provided at the bottom. The sampling valve 16 can dynamically sample, and the sample can reflect the real situation of the material in the working chamber to the greatest extent. The vent valve 15 can be opened when impurities are present to remove the impurities deposited at the bottom of the U-shaped pipe.

[0047] The present application adopts a unique Great Wall type filter plate unit 6, which effectively supports the filter cloth 61 while reducing the supporting contact area, thereby reducing the clogging of the filter cloth 61, shortening the filtration separation time, and improving production efficiency. Through the micro-pressure circulation unit 1, the filter plate unit 6 is monitored online at all times to see if it is damaged, and the material status is observed. The sight glass self-cleaning unit 4 forms a fan-shaped purge airflow toward the inner surface of the sight glass 44 through compressed air 43, and the material attachment 46 or mixed liquid generated on the inner surface of the sight glass 44 during production is blown away, which is beneficial for the operator to observe the dynamic extraction and pressure filtration production process at all times.

[0048] As an optional embodiment, the filter plate frame 621 and the filter plate net 622 are located on the same plate, at least two support rings 623 are arranged on the front of the plate, and the filter holes 624 are opened on the back of the plate, and the filter holes 624 are connected to the space between the corresponding two support rings 623. Figures 2 to 3 As shown, the filter plate frame 621 and the filter plate net 622 are an integrated structure, and regular filter holes 624 adapted to the material are opened thereon. The integrated structure significantly enhances the support force for the material.

[0049] As an optional embodiment, a material distribution unit 3 is further provided in the working chamber, and the material distribution unit 3 includes a material distributor 32, and the material distributor 32 is connected to a feed pipe 31 extending from the feed port into the discharge chamber 7, and at least two evenly arranged material distribution ports are provided at the bottom of the material distributor 32. Figure 6 As shown, the feed from the feed pipe 31 is uniformly distributed by the distributor 32 and discharged through the distribution port, thereby increasing the uniformity of the discharge.

[0050] As an optional embodiment, the distributor 32 is connected to the feed pipe 31 by a clamping ring 34, and the distributor 32 is rotatably arranged around the clamping ring 34. The upper portion of the material distribution port is connected to a distribution pipe 33 arranged obliquely. Figure 6 As shown, the distribution pipe 33 extends downward and forms an acute angle with the vertical direction. Under the action of the material pressure, a reverse thrust is generated to push the distributor 32 to rotate freely for feeding. The lower end of the feed pipe 31 is connected to the clamp ring 34 by a clamping connection. A clamping protrusion is arranged on the outer side of the feed pipe 31. The distributor 32 is provided with an annular clamping groove in which the clamping protrusion is embedded. There is no bearing structure, which avoids the contact between the lubricating oil and the product and contamination of the product. When it rotates, it uses liquid material lubrication to reduce friction. The distribution pipe 33 is set at an angle. When the material flows, a reverse thrust is generated to push the distributor 32 to rotate clockwise or counterclockwise, so that the material flows evenly to the upper surface of the entire filter cloth 61, avoiding the problem of accumulation and reducing the filtering efficiency due to the lack of this structure, which causes the material to be concentrated in some local filtering.

[0051] As an optional embodiment, the filter press and filtration machine further comprises a sight hole lamp self-cleaning unit 5 installed outside the working chamber, the sight hole lamp self-cleaning unit 5 comprises a sight hole lamp bracket 56 and a sight hole lamp 54 and an observation mirror 53 installed on the sight hole lamp bracket 56, the sight hole lamp bracket 56 is installed on the outer wall of the working chamber and has a blow hole 55, the sight hole lamp 54 is located on the front side of the observation mirror 53, and the blow hole 55 is located on the back side of the observation mirror 53 and faces the observation mirror 53. The function of the sight hole lamp self-cleaning unit 5 is the same as that of the sight mirror self-cleaning unit 4, such as Figure 7 As shown, when the clean compressed air 43 blows the inner surface of the observation mirror 53 through the blowing hole 55 in a fan-shaped manner until it is clean and transparent. The observation hole light 54 can be an LED light 54. After turning on the observation hole light switch 51, the LED light 54 lights up, and the light passes through the observation mirror 53 to provide a lighting source for the discharge cavity 7, as shown in FIG. Figure 1 As shown, the sight hole lamp self-cleaning unit 5 and the sight mirror self-cleaning unit 4 are both located on two opposite sides of the working chamber, so that personnel can conduct dynamic production observation from the sight mirror 44 on the symmetrical side during production.

[0052] As an optional embodiment, the filter press and filtration machine further includes a temperature control unit 2, the temperature control unit 2 includes a first temperature control interlayer 21 arranged outside the discharge chamber 7 and a second temperature control interlayer 23 arranged outside the feed pipe 31, the first temperature control interlayer 21 and the second temperature control interlayer 23 are connected through a temperature control tube. Figure 1 and Figure 8As shown, the second temperature control interlayer 23 is connected to a heat source inflow pipe 24, and the first temperature control interlayer 21 is connected to a heat source outflow pipe 25, to prevent low-temperature crystallization due to the characteristics of some materials during material feeding and filtering, resulting in material blockage.

[0053] As an optional embodiment, the filter press and filtration machine further includes a safety anti-pollution unit 110, which includes a breathing tube 115, a respirator 111 and a respirator valve 112 installed on the breathing tube, and a sterile filter element is arranged in the respirator 111. Figure 6 As shown, the respirator 111 in the embodiment of the present application is designed with a 0.22 micron sterile filter element to prevent gas backflow and avoid external air contamination of materials. The breathing tube 115 is connected to the discharge chamber 7, and the breathing valve 112 is controlled to open according to production needs to sterilely replenish air or break the vacuum in the discharge chamber 7.

[0054] As an optional embodiment, the breathing tube 115 is connected to a pressure gauge 114 and a bursting disc 113. Figure 6 As shown, the pressure in the discharge chamber 7 will be constantly displayed on the pressure gauge 114. When the pressure exceeds a preset safety value, the bursting disc 113 will burst to ensure the safety of personnel and containers.

[0055] As an optional embodiment, the filter press and filtration machine further comprises a liquid collecting tank 10, the inlet of the liquid collecting tank 10 is connected to the liquid outlet via a liquid collecting pipe, a liquid collecting valve 9 is installed on the liquid collecting pipe, and a vacuum pipe is also connected to the liquid collecting tank 10. Figure 8 As shown, a vacuum valve 101 is provided on the vacuum pipeline, and vacuum is connected to the vacuum valve 101 to generate negative pressure for suction filtration. The liquid collecting tank 10 serves as a buffer to collect the liquid phase material in the liquid collecting chamber 8, thereby preventing the liquid phase material in the liquid collecting chamber 8 from being filled up and affecting the normal operation of the system, so that the suction filter can run continuously, improve production efficiency and reduce labor.

[0056] The present application also provides a filter press and filtration equipment, including a filter press and filtration integrated machine and an isolator 120 as described in any one of the above, and the filter press and filtration integrated machine is embedded in the isolator 120. The filter press and filtration integrated machine provided in the present application is embedded in the isolator 120, and the feed pipe 31, the heat source inflow pipe 24, the heat pipe outflow pipe 25, and the liquid receiving valve 9 are all led out of the isolator 120. The entire production process of filtering the material after feeding and transferring the material to the vacuum drying oven 121 after taking the material is carried out under the protection of the A-level laminar flow unit of the isolator 120. Under the control of the aseptic production control system, the entire production process protects the product from contamination before packaging, realizes aseptic and dust-free isolation operation, reduces interference factors such as personnel and environment, and can reach OEB4 or above, reduce environmental pollution, and improve product quality.

[0057] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0058] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principles of the present invention, several other modifications can be made, which should also be considered as the protection scope of the present invention.

Claims

1. A filter press and filtration integrated machine, characterized in that: include: A working chamber, wherein a filter plate unit is arranged in the working chamber, wherein the filter plate unit divides the working chamber into a discharge chamber and a liquid receiving chamber, wherein the discharge chamber is provided with a feed inlet, and the liquid receiving chamber is provided with a discharge outlet; The filter plate unit comprises a filter cloth and a filter screen frame located below the filter cloth, the filter screen frame comprises a filter plate frame and a filter plate net located below the filter plate frame, the filter plate frame comprises at least two concentrically arranged support rings, the filter plate net is provided with a filter hole, and the filter hole is connected to the space between two adjacent support rings; A mirror self-cleaning unit, the mirror self-cleaning unit is installed outside the working chamber, and comprises a mirror bracket and a mirror mounted on the mirror bracket, the mirror bracket is provided with a purge hole, and the outlet of the purge hole faces the inner surface of the mirror; A micro-pressure circulation unit comprises a circulation pipe installed between a feed pipe and a discharge port, and a monitoring mirror is installed on the circulation pipe.

2. The integrated filter press and filtration machine according to claim 1, characterized in that: The filter plate frame and the filter plate net are located on the same plate, at least two support rings are arranged on the front side of the plate, the filter holes are opened on the back side of the plate, and the filter holes are connected to the space between the corresponding two support rings.

3. The integrated filter press and filtration machine according to claim 1, characterized in that: A material distribution unit is also provided in the working chamber, and the material distribution unit includes a material distributor, and the material distributor is connected to a feed pipe extending from the feed port into the discharge chamber, and at least two evenly arranged material distribution ports are provided at the bottom of the material distributor.

4. The integrated filter press and filtration machine according to claim 3, characterized in that: The distributor is connected to the feed pipe by a clamping ring, the distributor is rotatably arranged around the clamping ring, and an inclined distribution pipe is connected to the upper side of the material distribution port.

5. The integrated filter press and filtration machine according to claim 1, characterized in that: The integrated filter press and filtration machine also includes a sight hole lamp self-cleaning unit installed outside the working chamber, the sight hole lamp self-cleaning unit includes a sight hole lamp bracket and a sight hole lamp and an observation mirror installed on the sight hole lamp bracket, the sight hole lamp bracket is provided with a blowing hole, the sight hole lamp is located on the front side of the observation mirror, and the blowing hole is located on the back side of the observation mirror and faces the observation mirror.

6. The integrated filter press and filtration machine according to claim 1, characterized in that: The integrated filter press and filtration machine also includes a temperature control unit, which includes a first temperature control interlayer arranged on the outside of the discharge chamber and a second temperature control interlayer arranged on the outside of the feed pipe, and the first temperature control interlayer and the second temperature control interlayer are connected through a connecting pipe.

7. The integrated filter press and filtration machine according to claim 1, characterized in that: The integrated filter press and filtration machine also includes a safety anti-pollution unit, which includes a breathing tube, a respirator and a breathing valve installed on the breathing tube, and a sterile filter element is arranged in the respirator.

8. The integrated filter press and filtration machine according to claim 7, characterized in that: The breathing tube is connected with a pressure gauge and a bursting disc.

9. The integrated filter press and filtration machine according to any one of claims 1 to 8, characterized in that: The integrated filter press and filtration machine also includes a liquid collecting tank, the inlet of the liquid collecting tank is connected to the discharge port through a liquid collecting pipe, a liquid collecting valve is installed on the liquid collecting pipe, and a vacuum pipe is also connected to the liquid collecting tank.

10. A filter press or filtration device, characterized in that: It comprises the integrated filter press and filtration machine and the isolator as described in any one of claims 1 to 9, wherein the integrated filter press and filtration machine is embedded in the isolator.