Phosphorus oxychloride production filtering device

Abstract

The utility model relates to the technical field of phosphorus oxychloride production, in particular to a phosphorus oxychloride production filtering device. According to the technical scheme, the device comprises a filter box, a sleeve is fixedly installed on the upper surface of the filter box, a liquid inlet pipe is fixedly connected to the outer surface of the sleeve, an electric push rod is fixedly installed on the upper surface of the sleeve, a conical block is fixedly installed at the output end of the electric push rod, and the conical block is located in the filter box; a rotating pipe is rotatably mounted at the bottom of the inner wall of the filter box, a funnel-shaped filter screen is fixedly mounted on the upper surface of the rotating pipe, a residue discharge valve is fixedly mounted on the lower surface of the rotating pipe, and a liquid outlet pipe is fixedly connected to one side of the lower surface of the filter box. When impurities in phosphorus oxychloride are filtered out through the filter screen, the impurities are prevented from being accumulated on the filter screen, so that the filtering performance of the filter screen is ensured, the filter screen is prevented from being blocked, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphorus oxychloride production, in particular to a phosphorus oxychloride production filtering device. Background Art

[0002] Phosphorus oxychloride is a colorless, highly irritating and corrosive liquid. It is widely used in the chemical industry as a chlorinating agent and an organic synthesis catalyst. It is also widely used in industries such as semiconductor doping sources and optical fiber materials. During the production of phosphorus oxychloride, the phosphorus oxychloride generated by the reaction contains a certain amount of impurities. This part of the impurities needs to be filtered out to improve the purity of the phosphorus oxychloride.

[0003] At present, in the process of using a filter to filter out impurities in phosphorus oxychloride, as the impurities accumulated on the filter increase, the filtering performance of the filter decreases, and even causes the filter to be blocked. For this reason, we propose a phosphorus oxychloride production filtration device. Utility Model Content

[0004] The utility model aims to provide a phosphorus oxychloride production filtering device, which has the advantages of preventing the impurities from accumulating on the filter screen when filtering out impurities in the phosphorus oxychloride through the filter screen, thereby ensuring the filtering performance of the filter screen, avoiding the clogging of the filter screen, and improving the filtering efficiency, and solves the problem that in the process of filtering out impurities in the phosphorus oxychloride by using the filter screen, the filtering performance of the filter screen is reduced, and even the filter screen is blocked as the impurities accumulated on the filter screen increase.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a phosphorus oxychloride production filtration device, comprising a filter box, a sleeve is fixedly installed on the upper surface of the filter box, a liquid inlet pipe is fixedly connected to the outer surface of the sleeve, an electric push rod is fixedly installed on the upper surface of the sleeve, a conical block is fixedly installed on the output end of the electric push rod, and the conical block is located inside the filter box, a rotating tube is rotatably installed at the bottom of the inner wall of the filter box, a funnel-shaped filter is fixedly installed on the upper surface of the rotating tube, a slag discharge valve is fixedly installed on the lower surface of the rotating tube, and a liquid outlet pipe is fixedly connected to one side of the lower surface of the filter box.

[0006] Preferably, an observation port is provided on the outer surface of the filter box, and a transparent plate is fixedly installed inside the observation port.

[0007] Preferably, a sealing ring is fixedly installed on the outer surface of the funnel-shaped filter near the upper surface.

[0008] Preferably, a plurality of brush strips are fixedly installed in a circular array at equal intervals on the inner wall of the filter box, and the ends of the brush strips are located inside the funnel-shaped filter. A transmission box is fixedly installed on the lower surface of the filter box, and a rotating motor is fixedly installed on one side of the lower surface of the transmission box.

[0009] Preferably, the end of the rotating motor output shaft is fixedly connected with a motor gear, the outer surface of the rotating tube is fixedly sleeved with a transmission gear, and the transmission gear and the motor gear are meshed, and the transmission gear and the motor gear are both located inside the transmission box.

[0010] Preferably, four legs are fixedly installed at equal intervals in a circular array near the edge of the lower surface of the filter box.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model achieves the effect of avoiding accumulation of impurities on the filter screen when filtering impurities in phosphorus oxychloride through the filter screen, thereby ensuring the filtering performance of the filter screen, avoiding clogging of the filter screen, and improving the filtering efficiency by arranging a filter box, a sleeve, an electric push rod, a conical block, a liquid inlet pipe, a funnel-shaped filter screen, a rotating pipe, a liquid outlet pipe and a slag discharge valve. The phosphorus oxychloride enters the sleeve from the liquid inlet pipe and slides and disperses around along the outer surface of the conical block. The electric push rod drives the conical block to rise and fall to adjust the distance between the conical block and the sleeve, so that the flow rate of phosphorus oxychloride entering the filter box can be adjusted. The phosphorus oxychloride flowing down from the outer surface of the conical block flows from the edge of the funnel-shaped filter screen to the center, and plays a role in flushing impurities adhered to the inner wall of the funnel-shaped filter screen, so that the impurities are flushed to the central bottom end of the funnel-shaped filter screen and then collected in the rotating pipe. The impurities can be discharged by opening the slag discharge valve, and the filtered phosphorus oxychloride is discharged from the liquid outlet pipe.

[0013] 2. The utility model provides an observation port and a transparent plate, so that the situation inside the filter box can be observed through the transparent plate inside the observation port, thereby controlling the flow of phosphorus oxychloride entering the filter box, avoiding excessive phosphorus oxychloride liquid inside the funnel-shaped filter screen, and failing to flush impurities adhering to the inner wall of the funnel-shaped filter screen into the rotating tube.

[0014] 3. The utility model achieves the effect of brushing off the stubborn impurities adhering to the funnel-shaped filter screen and avoiding clogging of the filter screen by arranging a brush bar, a rotating motor, a motor gear, a transmission gear and a transmission box. The rotating motor drives the rotating tube and the funnel-shaped filter screen to rotate through the meshing transmission gear and the motor gear, and the brush bar brushes off the stubborn impurities adhering to the funnel-shaped filter screen and prevents clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of A.

[0019] Figure numerals: 1. liquid outlet pipe; 2. support leg; 3. filter box; 4. liquid inlet pipe; 5. electric push rod; 6. sleeve; 7. observation port; 8. transparent plate; 9. transmission box; 10. rotating motor; 11. slag discharge valve; 12. rotating pipe; 13. funnel-shaped filter; 14. brush strip; 15. sealing ring; 16. cone block; 17. transmission gear; 18. motor gear. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Embodiment 1

[0022] like Figure 1-Figure 3 As shown, a phosphorus oxychloride production filtering device proposed by the utility model includes a filter box 3, a sleeve 6 is fixedly installed on the upper surface of the filter box 3, and a liquid inlet pipe 4 is fixedly connected to the outer surface of the sleeve 6. The phosphorus oxychloride liquid enters the sleeve 6 from the liquid inlet pipe 4, and an electric push rod 5 is fixedly installed on the upper surface of the sleeve 6. A conical block 16 is fixedly installed on the output end of the electric push rod 5, and the conical block 16 is located inside the filter box 3. A rotating tube 12 is rotatably installed at the bottom of the inner wall of the filter box 3, and the two ends of the rotating tube 12 are respectively located outside and inside the filter box 3. The rotating tube 12 and the filter box 3 are rotatably connected through a sealing bearing, and a funnel-shaped filter screen 13 is fixedly installed on the upper surface of the rotating tube 12. A sealing ring 15 is fixedly installed on the outer surface of the funnel-shaped filter screen 13 near the upper surface. The sealing ring 15 seals the gap between the funnel-shaped filter screen 13 and the filter box 3.

[0023] A slag discharge valve 11 is fixedly installed on the lower surface of the rotating tube 12, a liquid outlet pipe 1 is fixedly connected to one side of the lower surface of the filter box 3, an observation port 7 is provided on the outer surface of the filter box 3, and a transparent plate 8 is fixedly installed inside the observation port 7. The situation inside the filter box 3 can be observed through the transparent plate 8 inside the observation port 7, so that the flow rate of phosphorus oxychloride entering the filter box 3 can be controlled to avoid excessive phosphorus oxychloride liquid inside the funnel-shaped filter screen 13, and impurities adhered to the inner wall of the funnel-shaped filter screen 13 cannot be washed into the rotating tube 12. Four legs 2 are fixedly installed at equal intervals in a circular array near the edge of the lower surface of the filter box 3.

[0024] When the utility model is in use, phosphorus oxychloride enters the sleeve 6 from the liquid inlet pipe 4, and slides down and disperses around along the outer surface of the cone block 16, and the cone block 16 is driven to rise and fall by the electric push rod 5 to adjust the distance between the cone block 16 and the sleeve 6, so that the flow rate of phosphorus oxychloride entering the filter box 3 can be adjusted, and the phosphorus oxychloride flowing down from the outer surface of the cone block 16 flows from the edge of the funnel-shaped filter screen 13 to the center, and plays a role in flushing impurities adhered to the inner wall of the funnel-shaped filter screen 13, so that the impurities are flushed to the central bottom end of the funnel-shaped filter screen 13, and then collected in the rotating tube 12, and the impurities can be discharged by opening the slag discharge valve 11, and the filtered phosphorus oxychloride is discharged from the liquid outlet pipe 1.

[0025] Embodiment 2

[0026] like Figure 2-Figure 4 As shown, a phosphorus oxychloride production filtration device proposed by the utility model, compared with the first embodiment, this embodiment also includes a plurality of brush strips 14 fixedly installed in an annular array on the inner wall of the filter box 3 at equal intervals, and the ends of the brush strips 14 are located inside the funnel-shaped filter screen 13, a transmission box 9 is fixedly installed on the lower surface of the filter box 3, a rotating motor 10 is fixedly installed on one side of the lower surface of the transmission box 9, a motor gear 18 is fixedly connected to the end of the output shaft of the rotating motor 10, a transmission gear 17 is fixedly sleeved on the outer surface of the rotating tube 12, and the transmission gear 17 and the motor gear 18 are meshed, and the transmission gear 17 and the motor gear 18 are both located inside the transmission box 9.

[0027] In this embodiment, the rotating motor 10 drives the rotating tube 12 and the funnel-shaped filter screen 13 to rotate through the meshing transmission gear 17 and the motor gear 18, and the brush strip 14 brushes away the stubborn impurities adhering to the funnel-shaped filter screen 13 to prevent clogging.

[0028] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A phosphorus oxychloride production filtering device, comprising a filter box (3), characterized in that: A sleeve (6) is fixedly mounted on the upper surface of the filter box (3), a liquid inlet pipe (4) is fixedly connected to the outer surface of the sleeve (6), an electric push rod (5) is fixedly mounted on the upper surface of the sleeve (6), a conical block (16) is fixedly mounted on the output end of the electric push rod (5), and the conical block (16) is located inside the filter box (3), a rotating tube (12) is rotatably mounted on the bottom of the inner wall of the filter box (3), a funnel-shaped filter screen (13) is fixedly mounted on the upper surface of the rotating tube (12), a slag discharge valve (11) is fixedly mounted on the lower surface of the rotating tube (12), and a liquid outlet pipe (1) is fixedly connected to one side of the lower surface of the filter box (3).

2. A phosphorus oxychloride production filtering device according to claim 1, characterized in that: The outer surface of the filter box (3) is provided with an observation port (7), and a transparent plate (8) is fixedly installed inside the observation port (7).

3. A phosphorus oxychloride production filtering device according to claim 1, characterized in that: A sealing ring (15) is fixedly mounted on the outer surface of the funnel-shaped filter screen (13) near the upper surface.

4. A phosphorus oxychloride production filtering device according to claim 1, characterized in that: The inner wall of the filter box (3) is fixedly mounted with a plurality of brush strips (14) in an annular array at equal intervals, and the ends of the brush strips (14) are located inside the funnel-shaped filter screen (13). A transmission box (9) is fixedly mounted on the lower surface of the filter box (3), and a rotating motor (10) is fixedly mounted on one side of the lower surface of the transmission box (9).

5. A phosphorus oxychloride production filtering device according to claim 4, characterized in that: The end of the output shaft of the rotating motor (10) is fixedly connected with a motor gear (18), the outer surface of the rotating tube (12) is fixedly sleeved with a transmission gear (17), and the transmission gear (17) and the motor gear (18) are meshed, and the transmission gear (17) and the motor gear (18) are both located inside the transmission box (9).

6. A phosphorus oxychloride production filtering device according to claim 1, characterized in that: Four legs (2) are fixedly installed in an annular array at equal intervals near the edge of the lower surface of the filter box (3).

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