Flushing device for polyolefin catalyst mother liquor recovery vacuum pump

Abstract

The utility model discloses a flushing device for a polyolefin catalyst mother liquor recovery vacuum pump, and belongs to the technical field of polyolefin production. Comprising a flushing table, a flushing frame is fixedly arranged on the flushing table, and a water tank is arranged on the flushing frame; a flushing pump is arranged in the water tank, and the output end of the flushing pump is connected with a flushing pipe located in the flushing frame. A groove is formed in the flushing pipe, and a water column adjusting structure is rotationally arranged in the groove; a controller is arranged on one side of the flushing frame and is in circuit connection with the flushing pump; a filtering frame is placed on the washing table and is fixed in the washing frame through an inserting structure, and a filtering net is arranged at the bottom of the filtering frame; a storage groove is formed in the washing table, and the storage groove communicates with the filtering frame; the storage groove communicates with the water tank through a backflow pipe. By arranging the water column adjusting structure, the thickness of the water column can be rapidly changed under the condition that the flushing pipe is not replaced, and therefore cleaning of different vacuum pump components can be dealt with.

Description

Technical Field

[0001] The utility model provides a flushing device for a polyolefin catalyst mother liquid recovery vacuum pump, belonging to the technical field of polyolefin production. Background Art

[0002] Polyolefin catalyst mother liquor is a liquid containing catalyst residues and reaction products used in the polyolefin production process. These catalyst mother liquors usually contain solid particles, sediments and other impurities. Vacuum pumps play an important role in recovering polyolefin catalyst mother liquors. Using vacuum pumps, mother liquors containing catalyst residues can be extracted, processed or transferred to the next production link, thereby maintaining the normal operation of production equipment and ensuring the continuity and stability of the production process. Since the catalyst mother liquor contains solid particles and sediments, long-term operation will cause problems such as pipeline blockage and pump damage. Therefore, it is necessary to regularly disassemble and flush the vacuum pump for recovering polyolefin catalyst mother liquor.

[0003] The structure of a vacuum pump is relatively complex, often including the vacuum pump body, blades, rotors, pipes connecting the pump body, internal seals, filters, etc. To ensure the flushing effect, these parts that may have residual particles and impurities must be thoroughly flushed. However, the various parts of the vacuum pump are of different sizes, and different flushing methods are often required for different parts. For example, when flushing large parts such as the main structure and blades, a thicker water column is often required to achieve fast and efficient flushing; while for small seals, filters, and other parts that are prone to impurities stuck in corners, a large water column is often not required, but a slender water column with strong impact force is required to easily clean out impurities that are not easy to flush. Therefore, when cleaning different parts of the vacuum pump, staff often need to replace different cleaning nozzles, which is very troublesome. Utility Model Content

[0004] The technical problem to be solved by the utility model is that when disassembling and cleaning the components of a vacuum pump for recovering a polyolefin catalyst mother liquid, different cleaning nozzles are often required to be replaced for different components, which is very troublesome.

[0005] In order to solve the above problems, the utility model proposes a technical solution: a flushing device for a polyolefin catalyst mother liquor recovery vacuum pump, comprising a flushing table, a flushing rack is fixedly arranged on the flushing table, and a water tank is arranged on the flushing rack; a flushing pump is arranged in the water tank, and the output end of the flushing pump is connected to a flushing pipe located in the flushing rack; a groove is provided in the flushing pipe, and a water column adjustment structure is rotatably arranged in the groove; a controller is provided on one side of the flushing rack, and the controller is connected to the flushing pump circuit; a filter frame is placed on the flushing table, the filter frame is fixed in the flushing rack through a plug-in structure, and a filter net is arranged at the bottom of the filter frame; a storage tank is provided in the flushing table, and the storage tank is connected with the filter frame; the storage tank is connected with the water tank through a reflux pipe.

[0006] As an improvement, the water column adjustment structure includes a rotating plate and an adjustment hole; the rotating plate is rotatably arranged relative to the groove, and a portion of the rotating plate is located in the groove; the adjustment holes are evenly distributed in a circular shape on the rotating plate, and there are four adjustment holes, and the four adjustment holes are of different sizes.

[0007] As an improvement, a rotating motor is fixedly arranged on the flushing rack, and the rotating motor is connected to the controller circuit; a rotating shaft is fixedly connected to the output shaft of the rotating motor, and the rotating plate is fixedly sleeved on the rotating shaft.

[0008] As an improvement, a reflux pump connected to the controller circuit is provided in the storage tank in the flushing station, and the output end of the reflux pump is connected to the reflux pipe.

[0009] As an improvement, the plug-in structure includes a positioning rod and a fixing plate; a spring groove is opened in the flushing rack, the positioning rod is located in the spring groove, and the fixing plate is fixedly sleeved on the positioning rod; positioning holes are opened on both sides of the filter frame, the positioning rod is inserted into the positioning holes; a compression spring is arranged in the spring groove and sleeved on the positioning rod.

[0010] As an improvement, the compression spring has a reserved compression amount during installation.

[0011] Beneficial effects of the utility model:

[0012] A groove is provided in the flushing pipe, and a water column adjustment structure is rotatably provided in the groove. By providing the water column adjustment structure, the thickness of the water column can be quickly changed without replacing the flushing pipe, so as to cope with the cleaning of different vacuum pump components. At the same time, the controller is connected to the flushing pump circuit, and can adjust the power of the flushing pump accordingly after changing the thickness of the water column, so as to control the appropriate flow rate to flush the vacuum pump components, and quickly and conveniently realize the adjustment of the water column and flow rate formed by the flushing pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1The utility model is a stereoscopic diagram of a flushing device for a polyolefin catalyst mother liquid recovery vacuum pump.

[0014] Figure 2 It is a stereoscopic diagram from another perspective of a flushing device for a polyolefin catalyst mother liquid recovery vacuum pump according to the utility model.

[0015] Figure 3 The utility model is a cross-sectional view of a flushing platform and a filter frame of a flushing device for a polyolefin catalyst mother liquid recovery vacuum pump.

[0016] Figure 4 The utility model is a three-dimensional diagram of a water column regulating structure of a flushing device for a polyolefin catalyst mother liquid recovery vacuum pump.

[0017] Figure 5 The utility model is a partial cross-sectional view of a flushing frame of a flushing device for a polyolefin catalyst mother liquid recovery vacuum pump.

[0018] 1. Flushing table; 2. Flushing rack; 3. Controller; 4. Water tank; 5. Filter frame; 6. Reflux pipe; 7. Flushing pump; 8. Flushing pipe; 9. Reflux pump; 10. Groove; 11. Rotating plate; 12. Adjusting hole; 13. Rotating motor; 14. Rotating shaft; 15. Spring slot; 16. Positioning rod; 17. Compression spring; 18. Fixing plate; 19. Positioning hole. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] according to Figure 1-5 As shown: The utility model provides a flushing device for a polyolefin catalyst mother liquid recovery vacuum pump: comprising a flushing table 1, a flushing frame 2 is fixedly arranged on the flushing table 1, and a water tank 4 is arranged on the flushing frame 2; a flushing pump 7 is arranged in the water tank 4, and the output end of the flushing pump 7 is connected to a flushing pipe 8 located in the flushing frame 2; a groove 10 is provided in the flushing pipe 8, and a water column adjustment structure is rotatably arranged in the groove 10; a controller 3 is provided on one side of the flushing frame 2, and the controller 3 is connected to the flushing pump 7 circuit; a filter frame 5 is placed on the flushing table 1, the filter frame 5 is fixed in the flushing frame 2 through a plug-in structure, and a filter net is arranged at the bottom of the filter frame 5; a storage tank is provided in the flushing table 1, and the storage tank is connected with the filter frame 5; the storage tank is connected with the water tank 4 through a reflux pipe 6.

[0021] By setting a water column adjustment structure, the thickness of the water column can be quickly changed without replacing the flushing tube 8, so as to cope with the cleaning of different vacuum pump components. At the same time, the controller 3 can adjust the power of the flushing pump 7 accordingly after changing the thickness of the water column, so as to control the appropriate flow rate to flush the vacuum pump components.

[0022] like Figure 4 As shown, the water column adjustment structure includes a rotating plate 11 and an adjustment hole 12; the rotating plate 11 is rotatably arranged relative to the groove 10, and a part of the rotating plate 11 is located in the groove 10, so that the water in the flushing pipe 8 can flow out through the adjustment hole 12; the adjustment holes 12 are evenly distributed in a circular shape on the rotating plate 11, and there are four adjustment holes 12, and the four adjustment holes 12 are of different sizes, which can adjust the thickness of the water column in four gears.

[0023] A rotating motor 13 is fixedly arranged on the flushing rack 2, and the rotating motor 13 is connected to the controller 3 circuit; a rotating shaft 14 is fixedly connected to the output shaft of the rotating motor 13, and the rotating plate 11 is fixedly sleeved on the rotating shaft 14. The rotating motor 13 and the rotating shaft 14 can provide power for the rotation of the rotating plate 11. At the same time, when the rotating motor 13 works once, the controller 3 can make corresponding adjustments to the power of the flushing pump 7.

[0024] A reflux pump 9 connected to the controller 3 circuit is provided in the storage tank in the rinse station 1, and the output end of the reflux pump 9 is connected to the reflux pipe 6. The reflux pump 9 can be used to reintroduce the filtered water into the water tank 4, which is convenient for water recycling and avoids waste of water resources.

[0025] like Figure 5 As shown, the plug-in structure includes a positioning rod 16 and a fixing plate 18; a spring slot 15 is provided in the flushing frame 2, the positioning rod 16 is located in the spring slot 15, and the fixing plate 18 is fixedly sleeved on the positioning rod 16; positioning holes 19 are provided on both sides of the filter frame 5, and the positioning rod 16 is inserted into the positioning holes 19, which facilitates the disassembly and cleaning of the filter frame 5; a compression spring 17 sleeved on the positioning rod 16 is provided in the spring slot 15. The compression spring 17 has a reserved compression amount when installed, which can continuously generate a pressing force on the filter frame 5, thereby increasing the placement stability of the filter frame 5.

[0026] Principle of the utility model

[0027] like Figure 1-3 This is a normal use state diagram of the present application. The disassembled parts of the vacuum pump are placed in the filter frame 5. The flushing pump 7 in the water tank 4 can spray the water in the water tank 4 through the flushing pipe 8 to flush the vacuum pump parts in the filter frame 5. The waste water after flushing is filtered by the filter net and then enters the flushing station 1 for storage; after a period of time, the reflux pump 9 is started to guide the filtered waste water into the water tank 4, so that the water can be recycled and resources can be saved.

[0028] like Figure 4As shown, when the thickness of the water column needs to be adjusted, the rotating motor 13 is started, and the rotating plate 11 rotates under the drive of the rotating shaft 14, so that the different adjustment holes 12 are aligned with the center of the flushing pipe 8, thereby correspondingly adjusting the thickness of the water column flowing out of the flushing pipe 8. When the rotating motor 13 is working, the controller 3 can control and adjust the power of the flushing pump 7 accordingly, thereby correspondingly adjusting the flushing flow rate and improving the flushing effect. Therefore, the present application can quickly and conveniently adjust the thickness of the flushing water column according to the parts to be flushed, thereby realizing rapid cleaning of different parts.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A flushing device for a polyolefin catalyst mother liquid recovery vacuum pump, comprising a flushing table (1), a flushing frame (2) fixedly arranged on the flushing table (1), a water tank (4) arranged on the flushing frame (2); a flushing pump (7) arranged in the water tank (4), and an output end of the flushing pump (7) connected to a flushing pipe (8) located in the flushing frame (2); characterized in that: A groove (10) is provided in the flushing pipe (8), and a water column regulating structure is rotatably arranged in the groove (10); a controller (3) is provided on one side of the flushing rack (2), and the controller (3) is connected to the flushing pump (7) in an electric circuit; a filter frame (5) is placed on the flushing table (1), the filter frame (5) is fixed in the flushing rack (2) through a plug-in structure, and a filter net is provided at the bottom of the filter frame (5); a storage tank is provided in the flushing table (1), and the storage tank is connected to the filter frame (5); the storage tank is connected to the water tank (4) through a reflux pipe (6).

2. A flushing device for a polyolefin catalyst mother liquid recovery vacuum pump according to claim 1, characterized in that: The water column regulating structure comprises a rotating plate (11) and regulating holes (12); the rotating plate (11) is rotatably arranged relative to the groove (10), and a portion of the rotating plate (11) is located in the groove (10); the regulating holes (12) are evenly distributed in a circular shape on the rotating plate (11), four regulating holes (12) are arranged, and the four regulating holes (12) are of different sizes.

3. A flushing device for a polyolefin catalyst mother liquid recovery vacuum pump according to claim 2, characterized in that: A rotating motor (13) is fixedly arranged on the flushing frame (2), and the rotating motor (13) is connected to the controller (3) circuit; a rotating shaft (14) is fixedly connected to the output shaft of the rotating motor (13), and the rotating plate (11) is fixedly sleeved on the rotating shaft (14).

4. A flushing device for a polyolefin catalyst mother liquid recovery vacuum pump according to claim 1, characterized in that: A reflux pump (9) connected to the controller (3) circuit is arranged in the storage tank in the flushing station (1), and the output end of the reflux pump (9) is connected to the reflux pipe (6).

5. The flushing device for a polyolefin catalyst mother liquid recovery vacuum pump according to claim 1, characterized in that: The plug-in structure comprises a positioning rod (16) and a fixing plate (18); a spring groove (15) is provided in the flushing frame (2), the positioning rod (16) is located in the spring groove (15), and the fixing plate (18) is fixedly sleeved on the positioning rod (16); positioning holes (19) are provided on both sides of the filter frame (5), the positioning rod (16) is inserted into the positioning holes (19); a compression spring (17) sleeved on the positioning rod (16) is provided in the spring groove (15).

6. A flushing device for a polyolefin catalyst mother liquid recovery vacuum pump according to claim 5, characterized in that: The compression spring (17) has a reserved compression amount during installation.

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