Discharging mechanism for polyolefin catalyst tank

Abstract

The discharging mechanism for the polyolefin catalyst tank comprises a base, a storage tank body, a discharging pipe, a pushing head, a blocking cover and cleaning cotton, the storage tank body is fixedly installed at the top end of the base, the bottom of the storage tank body is fixedly connected and communicated with the discharging pipe, and the bottom of the discharging pipe is fixedly connected and communicated with the discharging pipe; a connecting buckle is fixedly welded to the upper portion of one end of the discharging pipe and fixedly connected with the blocking cover, a pushing head is transversely and slidably connected to an opening in the other end of the discharging pipe, and the outer side of the pushing head is fixedly connected with one end of a hydraulic cylinder; the push head is arranged to clean catalyst residues in the discharging pipe, so that blockage is reduced, and the discharging efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of catalyst tanks, and in particular to a discharging mechanism for a polyolefin catalyst tank. Background Art

[0002] Polyolefin is a thermoplastic resin obtained by polymerization of ethylene. It is odorless, non-toxic, feels like wax, has excellent low-temperature resistance, good chemical stability, and can withstand corrosion from most acids and alkalis. Polyolefin catalysts are mainly transition metal compounds such as titanium chemically bonded to a magnesium-containing carrier. They have the advantages of high catalytic efficiency, good overall performance of the produced polymers, and low cost.

[0003] Application No. 202220075239.5 discloses a discharge structure for a magnesium-titanium polyolefin catalyst tank, including a storage tank body, a support frame, a limit bar, a limit plate and a nitrogen buffer tank, etc. By arranging a sealing plate at the discharge port and a waterproof layer on the outside of the storage tank body, the interior of the storage tank body is in a sealed state to prevent pollutants such as water vapor and dust from affecting the catalyst. By arranging a nitrogen compressor and a nitrogen buffer tank at one end of the discharge pipe, compressed ammonia is blown out in the discharge pipe to drive the catalyst to flow in the discharge pipe to avoid congestion of the catalyst in the discharge pipe.

[0004] However, in use, there are the following defects:

[0005] Although compressed nitrogen is used to drive the catalyst to flow out of the discharge pipe, there will inevitably be residual catalyst on the inner wall of the discharge pipe. After solidification over a long period of time, the internal volume of the discharge pipe will be reduced, thereby affecting the discharge efficiency. Utility Model Content

[0006] The purpose of the present application is to provide a discharge mechanism for a polyolefin catalyst tank, which solves the problem raised in the background technology that although compressed nitrogen is used to drive the catalyst to flow out of a discharge pipe, there will inevitably be residual catalyst on the inner wall of the discharge pipe, which will reduce the internal volume of the discharge pipe after solidification over a long period of time, thereby affecting the discharge efficiency.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a discharging mechanism for a polyolefin catalyst tank, comprising a base, a storage tank body, a discharge pipe, a pusher head, a baffle cover and a cleaning cotton, the storage tank body is fixedly installed on the top of the base, the bottom of the storage tank body is fixedly connected to and communicated with the discharge pipe, the bottom of the discharge pipe is fixedly connected to and communicated with the discharge pipe, a connecting buckle is fixedly welded above one end of the discharge pipe, the connecting buckle is fixedly connected to the baffle cover, the other end of the discharge pipe is laterally slidably connected to a pusher head at the opening, and the outer side of the pusher head is fixedly connected to one end of the hydraulic cylinder.

[0008] In this technical solution, the catalyst in the storage tank body enters the discharge pipe through the discharge pipe, the nitrogen compressor is started, and the ejected nitrogen passes through the nitrogen buffer tank and enters the discharge pipe, thereby pushing the catalyst out from one end of the discharge pipe. The discharge pipe can be shielded by the baffle cover and the connecting buckle, thereby reducing the external dust from entering the discharge pipe and contaminating the catalyst. In the process of discharging, catalyst residue will inevitably remain in the discharge pipe, which will gradually solidify and stick to the inner wall of the discharge pipe over time, which may cause blockage. The residual catalyst can be cleaned by the push head, hydraulic cylinder and power supply box. After the power supply box supplies power to the hydraulic cylinder, the hydraulic cylinder gradually extends, thereby driving the push head to move from one end of the discharge pipe to the other end. Since the diameter of the push head is consistent with the diameter of the discharge pipe, the residue on the inner wall can be scraped off and pushed out from one end of the baffle cover, thereby reducing the accumulation of catalyst and avoiding blockage of the discharge pipe. By putting cleaning cotton on the opening edge of the discharge pipe, when the push head returns to the original path after cleaning, the cleaning cotton can absorb and intercept the catalyst that may be retained on the push head and the side wall of the hydraulic cylinder, thereby keeping the push head and the hydraulic cylinder clean and reducing the contact between the catalyst and the air.

[0009] As an optional solution of the technical solution of the present application, the other end of the hydraulic cylinder is movably connected to the outer wall of the power supply box.

[0010] As an optional solution of the technical solution of the present application, a cleaning cotton is detachably installed on the edge of the discharge pipe opening on one side of the push block.

[0011] As an optional solution of the technical solution of the present application, the top end of the discharge pipe on one side of the feed pipe is fixedly connected and connected to an air inlet pipe, the upper side wall of the air inlet pipe is fixedly connected to a nitrogen buffer tank, and the other end of the nitrogen buffer tank is fixedly connected to a nitrogen compressor.

[0012] As an optional solution of the technical solution of the present application, a filling port is provided at the top of the storage tank body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present application can clean the residual catalyst through a pusher head, a hydraulic cylinder and a power supply box. After the power supply box supplies power to the hydraulic cylinder, the hydraulic cylinder gradually extends, thereby driving the pusher head to move from one end of the discharge pipe to the other end. Since the diameter of the pusher head is consistent with the diameter of the discharge pipe, the residue on the inner wall can be scraped off and pushed out from one end of the baffle cover, thereby reducing the accumulation of the catalyst and avoiding blockage of the discharge pipe.

[0015] 2. In the present application, cleaning cotton is put on the opening edge of the discharge pipe. When the pusher head returns to the original path after cleaning, the cleaning cotton can absorb and intercept the catalyst that may be retained on the pusher head and the side wall of the hydraulic cylinder, thereby keeping the pusher head and the hydraulic cylinder clean and reducing the contact between the catalyst and the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is an overall view of a discharge mechanism for a polyolefin catalyst tank of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of a discharge pipe of a discharge mechanism for a polyolefin catalyst tank of the present application;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of a discharge pipe of a discharge mechanism for a polyolefin catalyst tank according to the present application.

[0020] In the figure: 1. Storage tank body; 2. Base; 3. Feeding pipe; 4. Discharging pipe; 5. Connecting buckle; 6. Cover; 7. Power supply box; 8. Hydraulic cylinder; 9. Push head; 10. Nitrogen compressor; 11. Nitrogen buffer tank; 12. Inlet pipe; 13. Cleaning cotton; 14. Filling port. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, they are further explained below in conjunction with specific implementation methods.

[0022] like Figure 1 As shown, a discharging mechanism for a polyolefin catalyst tank includes a base 2, a storage tank body 1, a discharge pipe 3, a push head 9, a baffle 6 and a cleaning cotton 13. The storage tank body 1 is fixedly mounted on the top of the base 2, and a filling port 14 is opened on the top of the storage tank body 1.

[0023] like Figure 1 As shown, a cleaning cotton 13 is detachably installed at the edge of the opening of the discharge pipe 4 on one side of the push block, and the cleaning cotton 13 can absorb and intercept the catalyst on the push head 9 and the hydraulic cylinder 8.

[0024] like Figure 2 As shown, a connecting buckle 5 is fixedly welded on the upper end of one end of the discharge pipe 4 , and the connecting buckle 5 is fixedly connected to a blocking cover 6 , which can reduce the entry of external dust into the discharge pipe 4 .

[0025] like Figure 2As shown, the top of the discharge pipe 4 on one side of the feed pipe 3 is fixedly connected and communicated with an air inlet pipe 12 , the upper side wall of the air inlet pipe 12 is fixedly connected to a nitrogen buffer tank 11 , and the other end of the nitrogen buffer tank 11 is fixedly connected to a nitrogen compressor 10 .

[0026] like Figure 3 As shown, the bottom of the storage tank body 1 is fixedly connected and communicated with a feed pipe 3, the bottom of the feed pipe 3 is fixedly connected and communicated with a discharge pipe 4, the other end opening of the discharge pipe 4 is laterally slidably connected with a push head 9, the outer side of the push head 9 is fixedly connected to one end of a hydraulic cylinder 8, and the other end of the hydraulic cylinder 8 is movably connected to the outer wall of the power supply box 7, the push head 9 is inclined in design and has the same inner diameter as the discharge pipe 4, so that the catalyst on the inner wall can be scraped off.

[0027] In actual use, the catalyst in the storage tank body 1 enters the discharge pipe 4 through the feed pipe 3, the nitrogen compressor 10 is started, and the ejected nitrogen passes through the nitrogen buffer tank 11 and enters the discharge pipe 4, thereby pushing the catalyst to leave from one end of the discharge pipe 4. The discharge pipe 4 can be shielded by the baffle 6 and the connecting buckle 5, thereby reducing the entry of external dust into the discharge pipe 4 to contaminate the catalyst. In the process of discharging, it is inevitable that residual catalyst will remain in the discharge pipe 4, which will gradually solidify and stick to the inner wall of the discharge pipe 4 over time, which may cause blockage. The residual catalyst can be cleaned by the push head 9, the hydraulic cylinder 8 and the power supply box 7. After the electric box 7 supplies power to the hydraulic cylinder 8, the hydraulic cylinder 8 gradually extends, thereby driving the push head 9 to move from one end of the discharge pipe 4 to the other end. Since the diameter of the push head 9 is consistent with the diameter of the discharge pipe 4, the residue on the inner wall can be scraped off and pushed out from one end of the baffle 6, thereby reducing the accumulation of catalyst and avoiding the blockage of the discharge pipe 4. By putting cleaning cotton 13 on the opening edge of the discharge pipe 4, when the push head 9 returns to the original path after cleaning, the cleaning cotton 13 can absorb and intercept the catalyst that may be retained on the side walls of the push head 9 and the hydraulic cylinder 8, thereby keeping the push head 9 and the hydraulic cylinder 8 clean and reducing the contact between the catalyst and the air.

Claims

1. A discharging mechanism for a polyolefin catalyst tank, comprising a base (2), a storage tank body (1), a discharge pipe (3), a pusher head (9), a stopper (6) and a cleaning cotton (13), characterized in that: A storage tank body (1) is fixedly mounted on the top of the base (2); a feed pipe (3) is fixedly connected to and communicated with the bottom of the storage tank body (1); the bottom of the feed pipe (3) is fixedly connected to and communicated with a discharge pipe (4); a connecting buckle (5) is fixedly welded above one end of the discharge pipe (4); the connecting buckle (5) is fixedly connected to a blocking cover (6); a push head (9) is laterally slidably connected to the opening at the other end of the discharge pipe (4); and the outer side of the push head (9) is fixedly connected to one end of a hydraulic cylinder (8).

2. A discharging mechanism for a polyolefin catalyst tank according to claim 1, characterized in that: The other end of the hydraulic cylinder (8) is movably connected to the outer wall of the power supply box (7).

3. A discharging mechanism for a polyolefin catalyst tank according to claim 1, characterized in that: A cleaning cotton (13) is detachably mounted on the edge of the opening of the discharge pipe (4) on one side of the pusher head.

4. A discharging mechanism for a polyolefin catalyst tank according to claim 1, characterized in that: The top end of the discharge pipe (4) on one side of the feed pipe (3) is fixedly connected and communicated with an air inlet pipe (12); the upper side wall of the air inlet pipe (12) is fixedly connected to a nitrogen buffer tank (11); and the other end of the nitrogen buffer tank (11) is fixedly connected to a nitrogen compressor (10).

5. A discharging mechanism for a polyolefin catalyst tank according to claim 1, characterized in that: A filling port (14) is provided at the top of the storage tank body (1).

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