Phosphoric acid purification filter convenient to maintain

Abstract

The utility model relates to the technical field of phosphoric acid purification processing, in particular to a phosphoric acid purification filter convenient to maintain, which comprises a phosphoric acid purification cylinder, a connecting cylinder arranged on the right side of the phosphoric acid purification cylinder, a first mounting disc fixedly mounted on the right side of the phosphoric acid purification cylinder, and a second mounting disc fixedly mounted on the left side of the connecting cylinder, the first mounting disc is in threaded connection with the second mounting disc, and a purification mechanism is arranged between the first mounting disc and the second mounting disc; the purification mechanism comprises a phosphoric acid filter screen, a filter frame is fixedly installed on the outer side of the phosphoric acid filter screen, and a plurality of supporting connecting rods are installed on the filter frame in a screwed mode. Through the purification mechanism, the stirring blade is driven by the electric motor to rotate and scrape on the side surface of the phosphoric acid filter screen, so that impurities attached to the phosphoric acid filter screen can be scraped, the phosphoric acid filter screen is prevented from being blocked by the impurities, and the phosphoric acid filter screen always keeps a high-efficiency filtering function; in addition, the problem that the filter screen is blocked by impurities is solved, and practicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphoric acid purification and processing, in particular to a filter for phosphoric acid purification which is convenient for maintenance. Background Technique

[0002] Phosphoric acid is an important chemical raw material, which is widely used in multiple industries. Its production process includes two main methods: thermal method and wet method. The production methods of phosphoric acid are mainly divided into thermal phosphoric acid (PA) and wet-process phosphoric acid (WPA). Thermal phosphoric acid uses yellow phosphorus as raw material, and is made into phosphoric acid after oxidation, hydration and demisting at high temperature. Wet-process phosphoric acid is obtained by decomposing phosphate rock powder with inorganic acids such as sulfuric acid, nitric acid or hydrochloric acid to obtain crude phosphoric acid, and then through a purification process to obtain phosphoric acid products.

[0003] In the production of wet-process phosphoric acid, the purification filter is one of the key equipment, which is used to remove impurities in phosphoric acid and improve product quality. However, there are many impurities in phosphoric acid during the production of wet-process phosphoric acid, and the purification filter will be blocked by impurities during daily use and needs to be cleaned regularly. The daily maintenance is time-consuming and laborious. For this reason, we propose a filter for phosphoric acid purification which is convenient for maintenance to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings in the prior art, and to propose a filter for phosphoric acid purification which is convenient for maintenance.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A filter for phosphoric acid purification which is convenient for maintenance, including a phosphoric acid purification cylinder. A connecting cylinder is arranged on the right side of the phosphoric acid purification cylinder. A first mounting plate is fixedly installed on the right side of the phosphoric acid purification cylinder. A second mounting plate is fixedly installed on the left side of the connecting cylinder. The first mounting plate is screwed to the second mounting plate. A purification mechanism is arranged between the first mounting plate and the second mounting plate; the purification mechanism includes a phosphoric acid filter screen. A filter frame is fixedly installed on the outside of the phosphoric acid filter screen. A number of support connecting rods are screwed and installed on the filter frame. A central part of the number of support connecting rods is fixedly installed with an electric motor. A rotating shaft is fixedly installed on the output end of the electric motor. A number of stirring blades are fixedly installed on the rotating shaft. Inner sides of the number of stirring blades are in contact with the phosphoric acid filter screen.

[0007] Preferably, a left mounting flange is fixedly installed on the left side of the phosphoric acid purification cylinder, and a right mounting flange is fixedly installed on the right side of the connecting cylinder.

[0008] Preferably, a slag discharge pipe is communicated and installed on the lower side of the connecting cylinder, and a solenoid valve is fixedly installed on the slag discharge pipe.

[0009] Preferably, an installation groove is formed inside the first installation disc, and the filter frame is arranged inside the installation groove.

[0010] Preferably, the outer side of the electric motor is wrapped with an anti-corrosion sealing rubber sleeve.

[0011] Preferably, an internal abutting groove is formed inside the second installation disc, and an abutting rubber ring is installed inside the internal abutting groove, and the abutting rubber ring abuts against the filter frame.

[0012] Preferably, a sealing rubber ring is installed at the port of the second installation disc, and the sealing rubber ring is located inside the screwing point of the first installation disc and the second installation disc.

[0013] Compared with the related art, a filter for phosphoric acid purification that is easy to maintain proposed by the present utility model has the following beneficial effects:

[0014] In the present utility model, for a filter for phosphoric acid purification that is easy to maintain, through the provided purification mechanism, the purification and filtration main body in the purification mechanism is a phosphoric acid filter mesh for filtering impurities in phosphoric acid. A stirring blade is rotatably scraped on the side of the phosphoric acid filter mesh by using an electric motor. This setting can scrape off the impurities attached to the phosphoric acid filter mesh, avoid the blockage of the phosphoric acid filter mesh by impurities, and keep the phosphoric acid filter mesh always maintaining a high-efficiency filtering function. In addition, there is no need to worry about the problem of the filter mesh being blocked by impurities. At the same time, the entire purification mechanism is arranged between the first installation disc and the second installation disc, and the first installation disc and the second installation disc are installed by screwing, which is convenient for later disassembly and maintenance of the internally provided purification mechanism, enhancing the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a filter for phosphoric acid purification that is easy to maintain proposed by the present utility model;

[0016] Figure 2 is a three-dimensional disassembled structural schematic diagram of a filter for phosphoric acid purification that is easy to maintain proposed by the present utility model;

[0017] Figure 3 is a partial three-dimensional structural schematic of a filter for phosphoric acid purification that is easy to maintain proposed by the present utility model Figure 1 ;

[0018] Figure 4 is a partial three-dimensional structural schematic of a filter for phosphoric acid purification that is easy to maintain proposed by the present utility model Figure 2 ;

[0019] Figure 5 is a partial three-dimensional structural schematic of a filter for phosphoric acid purification that is easy to maintain proposed by the present utility modelFigure 3 。

[0020] In the figure: 1. Phosphoric acid purification cylinder; 2. Connecting cylinder; 3. Left mounting flange; 4. Right mounting flange; 5. First mounting plate; 6. Second mounting plate; 7. Slag discharge pipe; 8. Solenoid valve; 9. Phosphoric acid filter screen; 10. Filter frame; 11. Support connecting rod; 12. Electric motor; 13. Rotating shaft; 14. Stirring blade; 15. Mounting groove; 16. Inner abutting groove; 17. Abutting rubber ring; 18. Sealing rubber ring. Specific embodiments

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Refer to Figures 1-5 , a filter for phosphoric acid purification that is convenient for maintenance: including a phosphoric acid purification cylinder 1, a connecting cylinder 2 is arranged on the right side of the phosphoric acid purification cylinder 1, a first mounting plate 5 is fixedly installed on the right side of the phosphoric acid purification cylinder 1, a second mounting plate 6 is fixedly installed on the left side of the connecting cylinder 2, the first mounting plate 5 and the second mounting plate 6 are screwed together, and a purification mechanism is arranged between the first mounting plate 5 and the second mounting plate 6.

[0023] In this mode, the purification mechanism includes a phosphoric acid filter screen 9, a filter frame 10 is fixedly installed on the outside of the phosphoric acid filter screen 9, a number of support connecting rods 11 are screwed and installed on the filter frame 10, an electric motor 12 is fixedly installed in the central part of the number of support connecting rods 11, a rotating shaft 13 is fixedly installed on the output end of the electric motor 12, a number of stirring blades 14 are fixedly installed on the rotating shaft 13, and the inner sides of the number of stirring blades 14 are in contact with the phosphoric acid filter screen 9.

[0024] Through the above setting, the electric motor 12 is used to drive the rotating shaft 13 to drive the stirring blades 14 to rotate, so that the stirring blades 14 rotate and scrape on the side of the phosphoric acid filter screen 9, so that the impurities attached to the phosphoric acid filter screen 9 are scraped off by the stirring blades 14, so that the phosphoric acid filter screen 9 is not easily blocked by impurities during daily use, so that the phosphoric acid filter screen 9 always maintains a good filtering efficiency, and at the same time, the maintenance period of the phosphoric acid filter screen 9 is also correspondingly improved, and there is no need to worry about its daily filtering blockage problem.

[0025] In this mode, the outside of the electric motor 12 is wrapped with an anti-corrosion sealing rubber sleeve.

[0026] Through the above setting, the anti-corrosion sealing rubber sleeve wrapped outside the electric motor 12 enables the electric motor 12 to maintain normal operation in the phosphoric acid solution, and at the same time, the anti-corrosion sealing rubber sleeve prevents the outside of the electric motor 12 from being corroded by the acidic solution.

[0027] In this mode, a left mounting flange 3 is fixedly installed on the left side of the phosphoric acid purification cylinder 1, and a right mounting flange 4 is fixedly installed on the right side of the connecting cylinder 2.

[0028] Through the above settings, the utility model can be screwed and installed on the pipeline in the wet-process phosphoric acid production and processing through the left mounting flange 3 and the right mounting flange 4, which is also convenient for later disassembly and maintenance.

[0029] In this mode, a slag discharge pipe 7 is connected and installed on the lower side of the connecting cylinder 2, and a solenoid valve 8 is fixedly installed on the slag discharge pipe 7.

[0030] Through the above settings, the slag discharge pipe 7 is arranged on the lower side of the connecting cylinder 2. Then, when the stirring blades 14 rotate driven by the electric motor 12, the impurities scraped off from the phosphoric acid filter screen 9 by the stirring blades 14 slide to the lower side of the connecting cylinder 2. Then, whenever the filtering work is completed, by opening the solenoid valve 8, the impurities can be discharged from the inside of the connecting cylinder 2. This setting is convenient for daily cleaning of the residual impurities in the connecting cylinder 2.

[0031] In this mode, a sealing rubber ring 18 is installed at the port of the second mounting disc 6, and the sealing rubber ring 18 is located inside the screwing point of the first mounting disc 5 and the second mounting disc 6.

[0032] Through the above settings, the sealing rubber ring 18 arranged at the port of the second mounting disc 6 enables the port connection of the first mounting disc 5 and the second mounting disc 6 to maintain a sealing performance when they are connected and installed. The sealing rubber ring 18 is located inside the screwing point of the first mounting disc 5 and the second mounting disc 6, so the screwing point will not affect the sealing performance of the sealing rubber ring 18.

[0033] In this mode, an installation groove 15 is formed inside the first mounting disc 5, the filter frame 10 is arranged inside the installation groove 15, an internal abutting groove 16 is formed inside the second mounting disc 6, and an abutting rubber ring 17 is installed inside the internal abutting groove 16, and the abutting rubber ring 17 abuts against the filter frame 10.

[0034] Through the above settings, the installation groove 15 is used to provide an internal installation point for the filter frame 10. The abutting rubber ring 17 installed inside the internal abutting groove 16 will abut against the filter frame 10 inside the installation groove 15 when the first mounting disc 5 and the second mounting disc 6 are screwed together, and together with the installation groove 15, the filter frame 10 is restricted inside the installation groove 15.

[0035] The working principle of a phosphoric acid purification filter provided by the utility model, which is convenient for maintenance, is as follows:

[0036] During use, the phosphoric acid solution flows from the connecting cylinder 2 into the phosphoric acid purification cylinder 1. In the flow path, the phosphoric acid solution will pass through the phosphoric acid filter screen 9. When passing through the phosphoric acid filter screen 9, the impurities in the phosphoric acid solution are filtered out inside the connecting cylinder 2, and the impurities in the phosphoric acid solution that enter the phosphoric acid purification cylinder 1 through the phosphoric acid filter screen 9 are completely filtered out. During the filtering process of the phosphoric acid filter screen 9, the electric motor 12 can be started to drive the stirring blade 14 to rotate and scrape the impurities on the phosphoric acid filter screen 9, so that the phosphoric acid filter screen 9 maintains a high filtering efficiency. The scraped impurities fall to the bottom of the connecting cylinder 2. Whenever the filtering work is completed, by opening the solenoid valve 8, the impurities can be discharged from the inside of the connecting cylinder 2.

[0037] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A filter for phosphoric acid purification that is convenient for maintenance, characterized in that, It includes a phosphoric acid purification cylinder (1). A connecting cylinder (2) is arranged on the right side of the phosphoric acid purification cylinder (1). A first mounting plate (5) is fixedly installed on the right side of the phosphoric acid purification cylinder (1). A second mounting plate (6) is fixedly installed on the left side of the connecting cylinder (2). The first mounting plate (5) is screwed to the second mounting plate (6). A purification mechanism is arranged between the first mounting plate (5) and the second mounting plate (6). The purification mechanism includes a phosphoric acid filter screen (9). A filter frame (10) is fixedly installed on the outside of the phosphoric acid filter screen (9). A number of support connecting rods (11) are screwed and installed on the filter frame (10). A central part of the number of support connecting rods (11) is fixedly installed with an electric motor (12). A rotating shaft (13) is fixedly installed on the output end of the electric motor (12). A number of stirring blades (14) are fixedly installed on the rotating shaft (13). The inner sides of the number of stirring blades (14) are in contact with the phosphoric acid filter screen (9).

2. The filter for purifying phosphoric acid that is convenient for maintenance according to claim 1, wherein, A left mounting flange (3) is fixedly installed on the left side of the phosphoric acid purification cylinder (1). A right mounting flange (4) is fixedly installed on the right side of the connecting cylinder (2).

3. The filter for purifying phosphoric acid that is convenient for maintenance according to claim 1, wherein, A slag discharge pipe (7) is communicated and installed on the lower side of the connecting cylinder (2). A solenoid valve (8) is fixedly installed on the slag discharge pipe (7).

4. The filter for purifying phosphoric acid which is convenient for maintenance according to claim 1, wherein, An installation groove (15) is formed on the inner side of the first mounting plate (5). The filter frame (10) is arranged on the inner side of the installation groove (15).

5. A filter for phosphoric acid purification that is easy to maintain according to claim 1, characterized in that, The outside of the electric motor (12) is wrapped with an anti-corrosion sealing rubber sleeve.

6. The filter for purifying phosphoric acid that is easy to maintain according to claim 1, wherein, An internal abutment groove (16) is formed on the inner side of the second mounting plate (6). An abutment rubber ring (17) is installed on the inner side of the internal abutment groove (16). The abutment rubber ring (17) abuts against the filter frame (10).

7. The filter for purifying phosphoric acid that is convenient for maintenance according to claim 1, wherein, A sealing rubber ring (18) is installed at the port of the second mounting plate (6). The sealing rubber ring (18) is located inside the screwing point of the first mounting plate (5) and the second mounting plate (6).

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