Efficient filtering and separating device for phosphoric acid purification

By incorporating an installation mechanism and multi-stage filtration layers into the phosphoric acid purification unit, the problem of frequent filter replacement is solved, enabling rapid installation, removal, and cleaning of the filters, thereby improving filtration efficiency and ease of maintenance.

CN224156527UActive Publication Date: 2026-04-24KUNMING HENGHUI MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNMING HENGHUI MASCH MFG CO LTD
Filing Date
2025-02-27
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing phosphoric acid purification equipment requires frequent replacement of filter equipment during the filtration process and lacks quick loading and unloading functions, which affects the filtration effect and maintenance efficiency.

Method used

An installation mechanism is installed in the phosphoric acid purification device to enable quick installation and removal of the filter. The filter can be easily replaced by a threaded rod and motor drive. The combination of multi-stage filter layers and agitators improves filtration efficiency and cleanliness.

Benefits of technology

It enables quick filter replacement and cleaning maintenance, improves the efficiency and filtration effect of filtration equipment, and simplifies the maintenance process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224156527U_ABST
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Abstract

The utility model relates to an efficient filtering and separating device for phosphoric acid purification. The efficient filtering and separating device comprises a treatment tank and a filter arranged on one side of the treatment tank, a separation mechanism for intercepting large-particle impurities in a phosphoric acid solution is mounted in the treatment tank, liquid enters the filter and is filtered by the multi-stage filter layer during filtration, the filtered liquid is discharged through the drainage pipe, when many impurities exist in the treatment tank, the discharge valve pipe is opened to discharge the impurities, and when the filter needs to be replaced, the filter is replaced, and the filter is replaced. A first motor is started to drive a threaded rod to rotate, the surface of the threaded rod and a pushing tray are installed in a threaded mode, the pushing tray and an installation sleeve at the top of the pushing tray are driven to move downwards, one end of a liquid conveying pipe of the filter is detached, and the filter is detached from the installation sleeve and replaced with a new filter. One end of the infusion tube extrudes the rubber layer sleeve, so that the sealing performance is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of phosphoric acid purification equipment, specifically a high-efficiency filtration and separation device for phosphoric acid purification. Background Technology

[0002] Purified phosphoric acid treatment is a common industrial wastewater treatment method that effectively removes harmful substances such as phosphates. It generally includes a pretreatment stage (in phosphate plants, the raw material is mainly wastewater containing phosphates, requiring the removal of metal ions such as iron, copper, and zinc, as well as some large organic molecules and other impurities during pretreatment). Pretreatment employs chemical co-precipitation, adding coagulants such as FeCl3 and Ca(OH)2, along with coagulant aid PAC, to gradually aggregate suspended solids and form precipitates. In existing technologies, the phosphoric acid containing large particles after separation needs to be filtered. Filtration equipment is used to filter the phosphoric acid, but this requires frequent replacement and lacks a quick loading and unloading mechanism.

[0003] For example, the authorized patent document with application number 202420100738.4 discloses a wet-process dilute phosphoric acid high-efficiency filtration and purification device, which includes a device body. The top of the device body is provided with an inlet, which is connected to the inlet. The bottom of the device body is provided with an outlet, which is connected to the device body. A filter cloth is provided on the inner wall of the device body below the inlet. A transmission roller one and a transmission roller two are rotatably connected to both sides of the inner wall of the filter cloth. A drive motor is connected to the outer side of the transmission roller two. The drive motor drives the transmission roller two to rotate counterclockwise. A cleaning mechanism is provided at the transmission roller two.

[0004] The aforementioned patents suffer from the problem that the filtration equipment needs to be replaced frequently and lacks the function of quick loading and unloading of the filtration equipment. Therefore, we need to provide a high-efficiency filtration and separation device for phosphoric acid purification. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency filtration and separation device for phosphoric acid purification. An installation mechanism is provided on one side of the treatment tank to quickly replace the filter. During use, the filter may accumulate impurities and dirt, affecting its filtration effect. The quick loading and unloading function makes the cleaning and maintenance of the filter easier and more efficient, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency filtration and separation device for phosphoric acid purification, comprising:

[0007] Treatment tank and filter installed on one side of the treatment tank;

[0008] The processing tank is equipped with a separation mechanism for intercepting large particles of impurities in the phosphoric acid solution.

[0009] The processing tank is equipped with an installation mechanism on one side for quick loading and unloading of the filter.

[0010] Preferably, one side of the treatment tank is connected to an infusion pipe, the inside of which is connected to a pump body, and the outlet of the infusion pipe is connected to the top of the filter.

[0011] Preferably, the filter includes a housing disposed on one side of the treatment tank, the housing having multiple filter layers installed inside, a drain pipe connected to one side of the housing, a connecting pipe connected to the top of the housing, a fixing ring fixedly installed inside the connecting pipe, a rubber sleeve fixedly installed on the top of the fixing ring, and the outlet of the infusion tube being in contact with the top of the rubber sleeve.

[0012] Preferably, the installation mechanism includes an installation sleeve disposed on the surface of the housing, a push tray fixedly installed at the bottom of the installation sleeve, a fixing frame fixedly installed on one side of the processing tank, a threaded rod rotatably installed inside the fixing frame, the surface of the threaded rod being threaded into the inside of the push tray, and a first motor installed at the lower end of the threaded rod.

[0013] Preferably, the separation mechanism includes a feeding valve pipe embedded in the top of the treatment tank, the bottom of the treatment tank is funnel-shaped, the bottom of the treatment tank is connected to a discharge valve pipe, and the interior of the treatment tank is provided with a stirring element for mixing the phosphoric acid solution and precipitant inside the treatment tank.

[0014] Preferably, the stirring component includes a second motor fixedly installed on the top of the processing tank. The output end of the second motor passes through the top of the inner wall of the processing tank and is equipped with a stirring rod. Two stirring blades are fixedly installed on both sides of the stirring rod.

[0015] Preferably, the surface of the treatment tank has an embedded observation window.

[0016] Preferably, one side of the mounting sleeve has a reserved groove for placing the drain pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention features an installation mechanism on one side of the treatment tank, enabling quick replacement of the filter. During use, the filter may accumulate impurities and dirt, affecting its filtration efficiency. The quick installation and removal function makes cleaning and maintenance of the filter easier and more efficient. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a perspective view of the stirring component of this utility model;

[0021] Figure 3 This is a perspective view of the installation mechanism of this utility model;

[0022] Figure 4 This is a perspective view of the filter of this utility model.

[0023] In the diagram: 1. Processing tank; 2. Filter; 21. Shell; 22. Multi-stage filter layer; 23. Drain pipe; 24. Connecting pipe; 25. Fixing ring; 26. Adhesive sleeve; 3. Separation mechanism; 31. Feed valve pipe; 32. Discharge valve pipe; 30. Agitator; 301. Second motor; 302. Agitator rod; 303. Agitator blade; 4. Mounting mechanism; 41. Mounting sleeve; 42. Push tray; 43. Fixing frame; 44. Threaded rod; 45. First motor; 5. Infusion pipe; 6. Pump body; 7. Observation window. Detailed Implementation

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

[0025] Please see Figure 1-4 This utility model provides a technical solution: a high-efficiency filtration and separation device for phosphoric acid purification, comprising:

[0026] Processing tank 1 and filter 2 installed on one side of processing tank 1;

[0027] The interior of the treatment tank 1 is equipped with a separation mechanism 3 for intercepting large particulate impurities in the phosphoric acid solution;

[0028] A mounting mechanism 4 for quick installation and removal of filter 2 is provided on one side of the treatment tank 1;

[0029] Specifically, the installation mechanism 4 on one side of the treatment tank 1 enables quick replacement of the filter 2. The filter 2 may accumulate impurities and dirt during use, affecting its filtration effect. The quick installation and removal function makes the cleaning and maintenance of the filter 2 easier and more efficient.

[0030] One side of the treatment tank 1 is connected to an infusion pipe 5, and the inside of the infusion pipe 5 is connected to a pump body 6. The outlet of the infusion pipe 5 is connected to the top of the filter 2.

[0031] In this embodiment, phosphoric acid solution is poured into the treatment tank 1 through the feeding valve pipe 31 at the top, and a precipitant is added into the treatment tank 1 at the same time. The second motor 301 is started to drive the stirring rod 302 to rotate. The stirring blades 303 on the surface of the stirring rod 302 thoroughly mix the solution in the treatment tank 1. After stirring for a period of time, the second motor 301 is turned off, and sedimentation occurs in the treatment tank 1. Large particles of impurities accumulate at the bottom of the inner wall of the treatment tank 1. The pump body 6 is started to pump the upper liquid into the filter 2 through the infusion pipe 5. The condition inside the treatment tank 1 can be observed through the observation window 7 to determine whether sedimentation has been completed. The liquid enters the filter 2 and is filtered through multiple filtration layers 2. 2. Filtration is performed, and the filtered liquid is discharged through the drain pipe 23. When there are a lot of impurities in the treatment tank 1, the discharge valve pipe 32 is opened to discharge the impurities. When the filter 2 needs to be replaced, the first motor 45 is started to drive the threaded rod 44 to rotate. The surface of the threaded rod 44 is installed with the internal thread of the push tray 42, which drives the push tray 42 and the mounting sleeve 41 on its top to move down. One end of the filter 2 infusion pipe 5 is removed, and the filter 2 is removed from the mounting sleeve 41 and replaced with a new filter 2. The connecting pipe 24 on the top of the filter 2 is adapted to one end of the infusion pipe 5, and the end of the infusion pipe 5 is squeezed to the rubber sleeve 26 to improve the sealing performance.

[0032] The filter 2 includes a housing 21 disposed on one side of the treatment tank 1. A multi-stage filter layer 22 is installed inside the housing 21. A drain pipe 23 is connected to one side of the housing 21. A connecting pipe 24 is connected to the top of the housing 21. A fixing ring 25 is fixedly installed inside the connecting pipe 24. A rubber sleeve 26 is fixedly installed on the top of the fixing ring 25. The water outlet of the infusion tube 5 is in contact with the top of the rubber sleeve 26.

[0033] Specifically, the liquid enters the filter 2 and is filtered by the multi-stage filter layer 22. The filtered liquid is discharged through the drain pipe 23. The connecting pipe 24 at the top of the filter 2 is adapted to one end of the infusion pipe 5, and the infusion pipe 5 is squeezed with the rubber sleeve 26 to improve the sealing performance.

[0034] The mounting mechanism 4 includes a mounting sleeve 41 disposed on the surface of the housing 21, a push tray 42 fixedly mounted on the bottom of the mounting sleeve 41, a fixing frame 43 fixedly mounted on one side of the processing tank 1, a threaded rod 44 rotatably mounted inside the fixing frame 43, the surface of the threaded rod 44 being threadedly mounted to the inside of the push tray 42, and a first motor 45 mounted on the lower end of the threaded rod 44.

[0035] Furthermore, when the filter 2 needs to be replaced, the first motor 45 is started to drive the threaded rod 44 to rotate. The surface of the threaded rod 44 is installed with the internal thread of the push tray 42, which drives the push tray 42 and the mounting sleeve 41 on its top to move down. One end of the filter 2 infusion tube 5 is removed, and the filter 2 is removed from the mounting sleeve 41 and replaced with a new filter 2.

[0036] The separation mechanism 3 includes a feeding valve pipe 31 embedded in the top of the processing tank 1, a funnel-shaped bottom of the processing tank 1, a discharge valve pipe 32 connected to the bottom of the processing tank 1, and a stirring element 30 for mixing the phosphoric acid solution and precipitant inside the processing tank 1.

[0037] It should be noted that the phosphoric acid solution is poured into the treatment tank 1 through the feeding valve pipe 31 at the top, and a precipitant is added into the treatment tank 1 at the same time. The solution in the treatment tank 1 is thoroughly mixed by the agitator 30. After stirring for a period of time, the second motor 301 is turned off, and sedimentation takes place in the treatment tank 1. Large particles of impurities accumulate at the bottom of the inner wall of the treatment tank 1. The pump body 6 is started to pump the upper liquid into the filter 2 through the infusion pipe 5. The condition inside the treatment tank 1 can be observed through the observation window 7 to determine whether sedimentation has been completed. When there are a lot of impurities in the treatment tank 1, the discharge valve pipe 32 is opened to discharge the impurities.

[0038] The stirring component 30 includes a second motor 301 fixedly installed on the top of the processing tank 1. The output end of the second motor 301 passes through the top of the inner wall of the processing tank 1 and is equipped with a stirring rod 302. Two stirring blades 303 are fixedly installed on both sides of the stirring rod 302.

[0039] Specifically, the second motor 301 is started to drive the stirring rod 302 to rotate. The stirring blades 303 on the surface of the stirring rod 302 fully mix the solution in the treatment tank 1. After stirring for a period of time, the second motor 301 is turned off, and sedimentation occurs in the treatment tank 1. Large particles of debris accumulate at the bottom of the inner wall of the treatment tank 1.

[0040] The condition inside the treatment tank 1 can be observed through the observation window 7 to determine whether sedimentation has been completed. The observation window 7 is embedded in the surface of the treatment tank 1.

[0041] A pre-reserved groove for placing the drain pipe 23 is provided on one side of the mounting sleeve 41;

[0042] A reserved groove is provided for placing the drain pipe 23 on the surface of the filter 2, so as to prevent the filter 2 from being unable to be installed in the installation sleeve 41.

[0043] This device pours phosphoric acid solution into the treatment tank 1 through the feeding valve pipe 31 at the top of the treatment tank 1, and simultaneously adds a precipitant into the treatment tank 1. The second motor 301 is started, driving the stirring rod 302 to rotate. The stirring blades 303 on the surface of the stirring rod 302 thoroughly mix the solution in the treatment tank 1. After stirring for a period of time, the second motor 301 is turned off, and sedimentation occurs in the treatment tank 1. Large particles of impurities accumulate at the bottom of the inner wall of the treatment tank 1. The pump body 6 is started to pump the upper liquid into the filter 2 through the infusion pipe 5. The condition inside the treatment tank 1 can be observed through the observation window 7 to determine whether sedimentation is complete. The liquid enters the filter 2 and is filtered through multiple filter layers 22. The filtered liquid is discharged through the drain pipe 23. When there is a lot of debris in the treatment tank 1, the discharge valve pipe 32 is opened to discharge the debris. When the filter 2 needs to be replaced, the first motor 45 is started to drive the threaded rod 44 to rotate. The surface of the threaded rod 44 is installed with the internal thread of the push tray 42, which drives the push tray 42 and the mounting sleeve 41 on its top to move down. One end of the filter 2 infusion pipe 5 is removed and the filter 2 is removed from the mounting sleeve 41 to replace it with a new filter 2. The connecting pipe 24 on the top of the filter 2 is adapted to one end of the infusion pipe 5, and the end of the infusion pipe 5 is squeezed to the rubber sleeve 26 to improve the sealing performance.

Claims

1. A high-efficiency filtration and separation device for phosphoric acid purification, characterized in that, include: Processing tank (1) and filter (2) disposed on one side of processing tank (1); The processing tank (1) is equipped with a separation mechanism (3) for intercepting large particles of impurities in the phosphoric acid solution. The processing tank (1) is provided with an installation mechanism (4) for quick loading and unloading of the filter (2) on one side. The installation mechanism (4) includes an installation sleeve (41) disposed on the surface of the housing (21), a push tray (42) is fixedly installed at the bottom of the installation sleeve (41), a fixing frame (43) is fixedly installed on one side of the processing tank (1), a threaded rod (44) is rotatably installed inside the fixing frame (43), the surface of the threaded rod (44) is threaded with the inside of the push tray (42), and a first motor (45) is installed at the lower end of the threaded rod (44).

2. The high-efficiency filtration and separation device for phosphoric acid purification according to claim 1, characterized in that: One side of the treatment tank (1) is connected to an infusion pipe (5), and the inside of the infusion pipe (5) is connected to a pump body (6). The outlet of the infusion pipe (5) is connected to the top of the filter (2).

3. The high-efficiency filtration and separation device for phosphoric acid purification according to claim 2, characterized in that: The filter (2) includes a housing (21) disposed on one side of the treatment tank (1). A multi-stage filtration layer (22) is installed inside the housing (21). A drain pipe (23) is connected to one side of the housing (21). A connecting pipe (24) is connected to the top of the housing (21). A fixing ring (25) is fixedly installed inside the connecting pipe (24). A rubber sleeve (26) is fixedly installed on the top of the fixing ring (25). The outlet of the infusion tube (5) is in contact with the top of the rubber sleeve (26).

4. The high-efficiency filtration and separation device for phosphoric acid purification according to claim 1, characterized in that: The separation mechanism (3) includes a feeding valve pipe (31) embedded in the top of the processing tank (1), the bottom of the processing tank (1) is provided with a funnel shape, the bottom of the processing tank (1) is connected to a discharge valve pipe (32), and the interior of the processing tank (1) is provided with a stirring element (30) for mixing the phosphoric acid solution and precipitant in the processing tank (1).

5. The high-efficiency filtration and separation device for phosphoric acid purification according to claim 4, characterized in that: The stirring component (30) includes a second motor (301) fixedly installed on the top of the processing tank (1). The output end of the second motor (301) passes through the top of the inner wall of the processing tank (1) and is equipped with a stirring rod (302). Two stirring blades (303) are fixedly installed on both sides of the stirring rod (302).

6. The high-efficiency filtration and separation device for phosphoric acid purification according to claim 5, characterized in that: The surface of the processing tank (1) is embedded with an observation window (7).

7. The high-efficiency filtration and separation device for phosphoric acid purification according to claim 1, characterized in that: The mounting sleeve (41) has a reserved groove on one side for placing the drain pipe (23).

Citation Information

Patent Citations

  • Efficient filtering and purifying device for wet-process dilute phosphoric acid

    CN221513750U