Hydrotalcite washing water staged treatment device

Abstract

The invention relates to the technical field of hydrotalcite, in particular to a hydrotalcite washing water staged treatment device which comprises at least two communicated filtering systems, and each filtering system comprises a liquid storage tank, a filtering device, an input assembly and an output assembly; the filtering device comprises a filtering box and a plurality of filtering assemblies, the filtering box is provided with a plurality of cavities, the filtering assemblies are installed in the cavities respectively, the filtering assemblies are configured to divide the cavities into areas to be filtered and filtrate areas, the stock solution tank is communicated with the areas to be filtered through the input assembly, and the filtrate areas in the cavities are communicated with the output assembly; every two adjacent filtering systems are divided into a first-stage filtering system and a second-stage filtering system along the flowing direction of liquid. Each stage of filtering system comprises a plurality of independent chambers for treating the stock solution, so that the stock solution treatment efficiency of each stage of filtering system is ensured, and the condition that the stock solution can be treated timely and efficiently by the stage treatment device is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of hydrotalcite, and in particular to a hydrotalcite washing and classification treatment device. Background Art

[0002] As a new functional material, hydrotalcite is increasingly used in many areas such as plastic heat stabilizer, greenhouse film insulation agent, smoke suppression and flame retardant, catalyst, and gastric acid medicine.

[0003] The synthesis of hydrotalcite often requires a dilute solution, requiring solid-liquid separation. During this separation process, large amounts of wash water are required for repeated washing, necessitating the recycling of the wash water. Current treatment methods typically involve grading the wash water through filter plates with varying pore sizes. While this process allows for recycling, the wash water contains relatively small impurities and the pore sizes of the filter plates are also relatively small, resulting in a slow grading rate and impacting wash water recovery. Summary of the Invention

[0004] In order to solve the problem of slow recovery rate of washing water, the present application provides a hydrotalcite washing water classification treatment device.

[0005] The present application provides a hydrotalcite washing and classification treatment device, which adopts the following technical solution:

[0006] A hydrotalcite washing water classification treatment device comprises at least two interconnected filtration systems, wherein the filtration system comprises a liquid storage tank, a filtration device, an input component and an output component;

[0007] The liquid storage tank is used to store the raw liquid to be processed;

[0008] The filtration device includes a filter box and multiple filter assemblies. The filter box has multiple unconnected chambers along its height direction. The multiple filter assemblies are respectively installed in the multiple chambers. The filter assemblies are configured to separate the chamber into a to-be-filtered area and a filtrate area. The liquid in the to-be-filtered area is filtered by the filter assemblies and then flows into the filtrate area. The raw liquid tank is connected to the to-be-filtered area in each chamber through the input assembly. The filtrate area in each chamber is connected to the output assembly, and the output assembly extends to the outside of the filter box.

[0009] The two adjacent filtration systems are divided into a primary filtration system and a secondary filtration system along the flow direction of the liquid. The output component in the primary filtration system is connected to the liquid storage tank in the secondary filtration system. The filter pores of the filter component in the primary filtration system are larger than the filter pores of the filter component in the secondary filtration system.

[0010] Optionally, a hydrotalcite washing water classification treatment device further includes a flow monitoring component, which includes multiple flow meters, each flow meter is installed on the output component, and each flow meter corresponds to each filtrate area one by one, so that the flow meter can obtain the flow rate of each filtrate area when it is output through the output component in real time.

[0011] Optionally, a hydrotalcite washing water classification treatment device further includes an alarm component and a control component, the alarm component includes a plurality of alarms, and the plurality of alarms are communicatively connected to the plurality of flow meters via the control component;

[0012] The control component is configured to control an alarm corresponding to the flow meter to sound an alarm when the flow rate obtained by the flow meter is less than or equal to a first preset flow rate.

[0013] Optionally, a hydrotalcite washing water classification treatment device further includes a valve assembly, the valve assembly including a plurality of solenoid valves, the plurality of solenoid valves being mounted on the input assembly, each solenoid valve corresponding to each filtrate zone, so that the solenoid valve controls the opening and closing of the input assembly and the filtrate zone;

[0014] The control component is communicatively connected with the plurality of electromagnetic valves, and is configured to control the electromagnetic valve corresponding to the flow meter to close when the flow rate obtained by the flow meter is less than or equal to a first preset flow rate.

[0015] Optionally, the control component is configured to control the solenoid valve corresponding to the flow meter to fully open when the flow rate obtained by the flow meter is greater than a second preset flow rate, wherein the second preset flow rate is greater than the first preset flow rate;

[0016] When the flow rate obtained by the flow meter is between the first preset flow rate and the second preset flow rate, the electromagnetic valve corresponding to the flow meter is controlled to partially open.

[0017] Optionally, the filter assembly includes a frame and a filter plate installed in the frame. The side of the filter box has an opening connected to the chamber. The frame is inserted into the chamber through the opening so that the filter plate separates the chamber into a filtered area and a filtrate area.

[0018] Optionally, sealing strips are provided on the end surfaces where the frame abuts the chamber.

[0019] Optionally, the filter plate is arranged in an arc shape as a whole, and the middle part of the filter plate is lower than the edge part of the filter plate.

[0020] Optionally, the input assembly includes an input main pipe, an input branch pipe, and an input pump;

[0021] The input main pipe is connected to the liquid storage tank, and the water inlet of the input main pipe is located at the bottom end of the liquid storage tank. The input pump is installed at the water inlet of the input pipe. There are multiple input branch pipes, and one end of the multiple input branch pipes is respectively connected to the multiple areas to be filtered one by one, and the other ends of the multiple input branch pipes are respectively connected to the input main pipe.

[0022] Optionally, the output component includes an output main pipe and an output branch pipe, and there are multiple output branch pipes. One end of the multiple output branch pipes is connected to the multiple filtrate areas one by one, and the other ends of the multiple output branch pipes extend to the outside of the filter box and are respectively connected to the output main pipe.

[0023] In summary, this application has the following beneficial effects:

[0024] 1. Each level of the filtration system contains multiple independent chambers for raw liquid treatment, thereby ensuring the efficiency of each level of the filtration system in processing the raw liquid, ensuring that the graded treatment device can process the raw liquid in a timely and efficient manner, and ensuring the demand for washing water in the hydrotalcite production system;

[0025] 2. By setting up flow monitoring components, alarm components, control components and valve components, it is convenient for staff to judge the real-time filtering status of the filter components. When the filter components are seriously blocked, the filter components can be replaced in time to ensure the filtering efficiency of the filtration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a hydrotalcite washing and classification treatment device according to an embodiment of the present application.

[0027] Figure 2 It is a structural schematic diagram of a filter assembly in a hydrotalcite washing water classification treatment device according to an embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. Liquid storage tank; 2. Filter device; 21. Filter box; 211. Area to be filtered; 212. Filtrate area; 22. Filter assembly; 221. Frame; 222. Filter plate; 223. Sealing strip; 3. Input assembly; 31. Input main pipe; 32. Input branch pipe; 33. Input pump; 4. Output assembly; 41. Output main pipe; 42. Output branch pipe; 5. Flow meter; 6. Alarm; 7. Solenoid valve. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] Please refer to Figure 1 and Figure 2A hydrotalcite wash water grading treatment device includes at least two interconnected filtration systems. Exemplarily, the filtration systems are provided as a primary filtration system and a secondary filtration system. The pore size of the primary filtration system is larger than that of the secondary filtration system, enabling the grading treatment device to perform secondary filtration on the wash water, thereby ensuring the purity of the wash water after filtration. The filtration system includes a liquid storage tank 1, a filtration device 2, an input assembly 3, and an output assembly 4.

[0032] The liquid storage tank 1 is used to store the raw liquid to be processed. Exemplarily, the liquid storage tank 1 is connected to the washing water outlet of the hydrotalcite production system, so that the washing water in the hydrotalcite production system can directly enter the classification treatment device.

[0033] The filter device 2 includes a filter box 21 and multiple filter components 22. The filter box 21 has multiple unconnected chambers along its height direction. Exemplarily, there are three chambers. Multiple filter components 22 are respectively installed in multiple chambers. The filter components 22 are configured to separate the chambers into a to-be-filtered area 211 and a filtrate area 212. The liquid level in the to-be-filtered area 211 is the raw liquid from the liquid storage tank 1 entering the filter box 21, and the liquid in the filtrate area 212 is the filtrate after the raw liquid is filtered by the filter components 22. The liquid in the to-be-filtered area 211 is filtered by the filter components 22 and then flows to the filtrate area 212. The raw liquid tank is connected to the to-be-filtered area 211 in each chamber via the input component 3. Exemplarily, the input component 3 has a liquid distribution pipe connected to each chamber, so that the liquid in the raw liquid tank can be transported to the to-be-filtered area 211 respectively. The filtrate area 212 in each chamber is connected to the output component 4, and the output component 4 extends to the outside of the filter box 21. In addition, one end of the output component 4 extending to the filter box 21 is connected to the liquid storage tank 1 in the next-level filtration system, or one end of the output component 4 extending to the filter box 21 is connected to the wash water inlet in the hydrotalcite production system.

[0034] The two adjacent filtration systems are divided into a primary filtration system and a secondary filtration system along the flow direction of the liquid. The output component 4 in the primary filtration system is connected to the liquid storage tank 1 in the secondary filtration system. The filter pores of the filter component 22 in the primary filtration system are larger than the filter pores of the filter component 22 in the secondary filtration system.

[0035] By adopting the above technical solution, when wash water needs to be graded, the raw liquid to be processed is stored in the liquid storage tank 1. The raw liquid is then transported to the filtration area 211 in each chamber through the input component 3. The raw liquid in the filtration area is then filtered by multiple filter components 22 and enters the filtrate area 212. The liquid in the filtrate area 212 is then discharged through the output component 4 and enters the next level of filtration system. The raw liquid is filtered and treated repeatedly through the above steps to obtain clean wash water. Moreover, each level of the filtration system contains multiple chambers for independent raw liquid treatment, thereby ensuring the efficiency of the raw liquid treatment of each level of the filtration system, ensuring that the graded treatment device can timely and efficiently treat the raw liquid, and ensuring the demand for wash water in the hydrotalcite production system.

[0036] In some embodiments, please refer to Figure 1 and Figure 2 The hydrotalcite washing water classification treatment device also includes a flow monitoring component, which includes multiple flow meters 5. Each flow meter 5 is installed on the output component 4. Each flow meter 5 corresponds to each filtrate area 212 one by one, so that the flow meter 5 can obtain the flow rate of each filtrate area 212 when it is output through the output component 4 in real time.

[0037] Exemplarily, the flow meter 5 is an anti-corrosion flow meter 5, thereby preventing the flow meter 5 from being easily damaged during use.

[0038] By adopting the above technical solution and setting up a flow meter 5, the flow rate of each filtrate area 212 when outputting through the output component 4 can be obtained in real time. The staff can judge the filtering situation of each chamber on the raw liquid based on the flow rate. The larger the flow rate, the better the effect of the filter component 22 in each chamber on filtering the raw liquid. The smaller the flow rate, the blockage of the filter component 22 in each chamber, which leads to poor filtering effect of the filter component 22 on the raw liquid. This makes it easier for the staff to replace or maintain the filter component 22, thereby ensuring the efficiency of the filtration system in treating the raw liquid.

[0039] In some embodiments, please refer to Figure 1 and Figure 2 The hydrotalcite washing water classification treatment device further includes an alarm component and a control component. The alarm component includes multiple alarms 6. For example, the alarms 6 can be light alarms 6, voice alarms 6, or light and voice alarms 6. The multiple alarms 6 are connected to the multiple flow meters 5 in a one-to-one communication manner via the control component.

[0040] The control component is configured to control the alarm 6 corresponding to the flow meter 5 to sound an alarm when the flow rate obtained by the flow meter 5 is less than or equal to the first preset flow rate.

[0041] By adopting the above technical solution and providing the alarm component and the control component, when the flow rate obtained by the flow meter 5 is less than or equal to the first preset flow rate, the control component can control the alarm 6 to sound an alarm, thereby enabling the staff to promptly discover that the filter component 22 in the chamber is seriously clogged, affecting the efficiency of filtering the raw liquid, so as to facilitate timely replacement of the filter component 22.

[0042] In some embodiments, please refer to Figure 1 and Figure 2 The hydrotalcite washing water classification treatment device also includes a valve assembly, which includes multiple solenoid valves 7. The multiple solenoid valves 7 are installed on the input assembly 3. Each solenoid valve 7 corresponds to each filtrate area 212 one by one, so that the solenoid valve 7 controls the opening and closing between the input assembly 3 and the filtrate area 212.

[0043] The control component is in communication connection with the plurality of electromagnetic valves 7 , and is configured to control the electromagnetic valve 7 corresponding to the flow meter 5 to close when the flow rate obtained by the flow meter 5 is less than or equal to a first preset flow rate.

[0044] By adopting the above technical solution and setting a valve assembly, when the flow rate obtained by the flow meter 5 is less than or equal to the first preset flow rate, the controller controls the solenoid valve 7 corresponding to the flow meter 5 to close, thereby avoiding that when the filter assembly 22 is seriously blocked, the input assembly 3 continues to transport the raw liquid into the chamber, causing the raw liquid to accumulate in the to-be-filtered area 211 in the chamber, thereby affecting the subsequent replacement or maintenance of the filter assembly 22 in the chamber.

[0045] In some embodiments, please refer to Figure 1 and Figure 2 The control component is configured to control the solenoid valve 7 corresponding to the flowmeter 5 to fully open when the flow rate obtained by the flowmeter 5 is greater than the second preset flow rate, wherein the second preset flow rate is greater than the first preset flow rate.

[0046] When the flow rate obtained by the flow meter 5 is between the first preset flow rate and the second preset flow rate, the solenoid valve 7 corresponding to the flow meter 5 is controlled to be partially opened.

[0047] By adopting the above technical solution, when the flow rate obtained by the flow meter 5 is greater than the second preset flow rate, it means that the filter holes in the filter component 22 are basically not blocked. When the flow rate obtained by the flow meter 5 is between the first preset flow rate and the second preset flow rate, it means that the filter holes in the filter component 22 are partially blocked. Although it does not affect the efficiency of the filter component 22 in filtering the raw liquid, the partial blockage of the filter holes will cause the filtering effect of the filter component 22 on the raw liquid to be reduced. If the raw liquid is added to the chamber at the same liquid inlet rate as before, the raw liquid in the to-be-filtered area 211 will gradually increase and even overflow the filter box 21. Therefore, when the flow rate obtained by the flow meter 5 is between the first preset flow rate and the second preset flow rate, the solenoid valve 7 corresponding to the flow meter 5 is controlled to partially open to reduce the rate of entry into the chamber and avoid excessive raw liquid overflowing the filter box 21.

[0048] In some embodiments, please refer to Figure 1 and Figure 2 The filter assembly 22 includes a frame 221 and a filter plate 222 installed in the frame 221. The side of the filter box 21 has an opening connected to the chamber. The frame 221 is inserted into the chamber through the opening so that the filter plate 222 separates the chamber into a to-be-filtered area 211 and a filtrate area 212.

[0049] Exemplarily, two baffles are extended on both sides of the lower middle portion of the filter box 21 in the chamber so that the two baffles form a groove for accommodating the frame 221. The frame 221 is clamped in the groove, thereby installing the filter assembly 22 in the chamber.

[0050] By adopting the above technical solution, it is convenient for the staff to install or remove the filter assembly 22 from the filter box 21, thereby facilitating the staff to maintain or replace the filter assembly 22.

[0051] In some embodiments, please refer to Figure 1 and Figure 2 The end surfaces of the frame 221 that abut against the chamber are both provided with sealing strips 223 .

[0052] Illustratively, the sealing strip 223 is at least partially embedded in the frame 221 , and at least partially abuts against the end surface of the chamber.

[0053] By adopting the above technical solution and providing the sealing strip 223 , the sealing between the frame 221 and the chamber is ensured.

[0054] In some embodiments, the filter plate 222 is arranged in an arc shape as a whole, and the middle portion of the filter plate 222 is lower than the edge portion of the filter plate 222 .

[0055] By adopting the above technical solution, not only the area of ​​the filter plate 222 can be increased, thereby improving the contact area between the filter plate 222 and the raw liquid, thereby ensuring the filtering efficiency of the filter plate 222 on the raw liquid, but also in the process of the filter plate 222 filtering the raw liquid, the impurities accumulated on the filter plate 222 can be pushed by the flow of the raw liquid and accumulated in the middle position of the filter plate 222 as much as possible. Compared with the flat filter plate 222, the arc-shaped filter plate 222 has a longer service life.

[0056] In some embodiments, please refer to Figure 1 and Figure 2 The input component 3 includes an input main pipe 31 , an input branch pipe 32 and an input pump 33 .

[0057] The input main pipe 31 is connected to the liquid storage tank 1, and the water inlet of the input main pipe 31 is located at the bottom end of the liquid storage tank 1. The input pump 33 is installed at the water inlet of the input pipe. There are multiple input branch pipes 32. One end of the multiple input branch pipes 32 is respectively connected to the multiple areas to be filtered 211 in a one-to-one correspondence, and the other ends of the multiple input branch pipes 32 are respectively connected to the input main pipe 31.

[0058] The plurality of solenoid valves 7 are arranged in a one-to-one correspondence with the plurality of input branch pipes 32 .

[0059] By adopting the above technical solution, when it is necessary to transport the raw liquid into the chamber, the input pump 33 is started, and the input pump 33 can transport the raw liquid in the liquid storage tank 1 to each chamber in sequence through the input main pipe 31 and the input air duct.

[0060] In some embodiments, please refer to Figure 1 and Figure 2 The output component 4 includes an output main pipe 41 and an output branch pipe 42. There are multiple output branch pipes 42. One end of the multiple output branch pipes 42 is connected to the multiple filtrate areas 212 one by one, and the other ends of the multiple output branch pipes 42 extend to the outside of the filter box 21 and are respectively connected to the output main pipe 41.

[0061] The plurality of flow meters 5 and the plurality of output branch pipes 42 are arranged in a one-to-one correspondence.

[0062] By adopting the above technical solution, the output branch pipes 42 can output the liquid in each filtrate area 212, which is then collected through the output main pipe 41 and then transported to the next level filtration system or hydrotalcite production system.

[0063] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hydrotalcite washing water classification treatment device, characterized in that: It comprises at least two interconnected filtering systems, wherein the filtering system comprises a liquid storage tank (1), a filtering device (2), an input component (3) and an output component (4); The liquid storage tank (1) is used to store the raw liquid to be processed; The filtering device (2) comprises a filtering box (21) and a plurality of filtering components (22). The filtering box (21) has a plurality of mutually unconnected chambers along its height direction. The plurality of filtering components (22) are respectively installed in the plurality of chambers. The filtering components (22) are configured to separate the chamber into a to-be-filtered area (211) and a filtrate area (212). The liquid in the to-be-filtered area (211) is filtered by the filtering components (22) and then flows to the filtrate area (212). The raw liquid tank is connected to the to-be-filtered area (211) in each chamber through the input component (3). The filtrate area (212) in each chamber is connected to the output component (4), and the output component (4) extends to the outside of the filtering box (21). Two adjacent filter systems are divided into a primary filter system and a secondary filter system along the flow direction of the liquid, the output component (4) in the primary filter system is connected to the liquid storage tank (1) in the secondary filter system, and the filter holes of the filter component (22) in the primary filter system are larger than the filter holes of the filter component (22) in the secondary filter system.

2. A hydrotalcite washing water classification treatment device according to claim 1, characterized in that: The invention also includes a flow monitoring component, wherein the flow monitoring component includes a plurality of flow meters (5), each of the flow meters (5) being mounted on the output component (4), and each of the flow meters (5) corresponding to each of the filtrate areas (212) one by one, so that the flow meters (5) can obtain the flow rate of each of the filtrate areas (212) when outputting through the output component (4) in real time.

3. A hydrotalcite washing water classification treatment device according to claim 2, characterized in that: It also includes an alarm component and a control component, wherein the alarm component includes a plurality of alarms (6), and the plurality of alarms (6) are connected to the plurality of flow meters (5) in a one-to-one communication manner through the control component; The control component is configured to control the alarm (6) corresponding to the flow meter (5) to issue an alarm when the flow rate obtained by the flow meter (5) is less than or equal to a first preset flow rate.

4. A hydrotalcite washing water classification treatment device according to claim 3, characterized in that: The device further comprises a valve assembly, wherein the valve assembly comprises a plurality of solenoid valves (7), wherein the plurality of solenoid valves (7) are mounted on the input assembly (3), and each solenoid valve (7) corresponds to each of the liquid-to-be-filtrate areas (212) in a one-to-one manner, so that the solenoid valves (7) control the opening and closing between the input assembly (3) and the liquid-to-be-filtrate area (212); The control component is in communication connection with the plurality of solenoid valves (7), and is configured to control the solenoid valve (7) corresponding to the flow meter (5) to close when the flow rate obtained by the flow meter (5) is less than or equal to a first preset flow rate.

5. The hydrotalcite washing water classification treatment device according to claim 4, characterized in that: The control element is configured to control the solenoid valve (7) corresponding to the flow meter (5) to fully open when the flow rate obtained by the flow meter (5) is greater than a second preset flow rate, wherein the second preset flow rate is greater than the first preset flow rate; When the flow rate obtained by the flow meter (5) is between the first preset flow rate and the second preset flow rate, the electromagnetic valve (7) corresponding to the flow meter (5) is controlled to be partially opened.

6. A hydrotalcite washing water classification treatment device according to any one of claims 1 to 5, characterized in that: The filter assembly (22) comprises a frame (221) and a filter plate (222) installed in the frame (221); the side of the filter box (21) has an opening connected to the chamber; the frame (221) is inserted into the chamber through the opening, so that the filter plate (222) separates the chamber into the area to be filtered (211) and the filtrate area (212).

7. The hydrotalcite washing water classification treatment device according to claim 6, characterized in that: The end surfaces of the frame (221) that abut against the chamber are both provided with sealing strips (223).

8. The hydrotalcite washing water classification treatment device according to claim 6, characterized in that: The filter plate (222) is arranged in an arc shape as a whole, and the middle portion of the filter plate (222) is lower than the edge portion of the filter plate (222).

9. A hydrotalcite washing water classification treatment device according to any one of claims 1 to 5, characterized in that: The input assembly (3) includes an input main pipe (31), an input branch pipe (32) and an input pump (33); The input main pipe (31) is connected to the liquid storage tank (1), and the water inlet of the input main pipe (31) is located at the bottom end of the liquid storage tank (1). The input pump (33) is installed at the water inlet of the input pipe. A plurality of input branch pipes (32) are provided. One end of each of the plurality of input branch pipes (32) is connected to a plurality of the areas to be filtered (211) in a one-to-one correspondence, and the other ends of each of the plurality of input branch pipes (32) are connected to the input main pipe (31).

10. A hydrotalcite washing water classification treatment device according to any one of claims 1 to 5, characterized in that: The output assembly (4) comprises an output main pipe (41) and an output branch pipe (42). A plurality of the output branch pipes (42) are provided. One end of each of the plurality of output branch pipes (42) is connected to a plurality of the filtrate areas (212) in a one-to-one correspondence. The other ends of each of the plurality of output branch pipes (42) extend to the outside of the filter box (21) and are connected to the output main pipe (41) respectively.

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