Device for extracting waste catalyst in tubular reactor
Through the device composed of wire brush, blowing pipette and limiting plate, the problem of catalyst coking in the tube reactor is solved, and the complete cleaning of the catalyst and efficient replacement of new catalysts are achieved, ensuring the long-term operation of the reactor.
Patent Information
- Application Number
- CN202422567156.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In the prior art, the catalyst coking in the tubular reactor results in the inability to thoroughly clean up, affecting the performance of catalyst replacement and new catalysts.
The device consisting of a wire brush, a blowing straw, a limiting plate and a blow-sucking integrated machine is used to clean the catalyst through blow-blow disturbance and suction mode, and combine the wire brush to clean the coke to ensure the complete extraction of the catalyst.
The catalyst is thoroughly cleaned up, the reactor structure is protected, and the new catalyst is operated for a long period of high loads and long cycles.
Smart Images
Figure CN223249273U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste catalyst extraction tools, in particular to a device for extracting waste catalysts from a tubular reactor. Background Art
[0002] The shell-and-tube reactors currently used in chemical production, after a period of operation, have reduced catalyst activity in the reactor and are no longer able to meet production needs, requiring catalyst replacement. The spent catalyst is extracted from the reactor tubes and then loaded with new catalyst to ensure normal production. The existing method of extracting the catalyst is to insert an air source tube into the tubes, blow air to stir the catalyst, and then use a vacuum to extract the spent catalyst. However, some spent catalysts coke inside the reactor tubes during the chemical production process and cannot be extracted, which affects the replacement of the catalyst and the performance of the new catalyst. Utility Model Content
[0003] The purpose of the utility model is to solve the defects of the existing reactor tubes that the catalyst coke cannot be extracted and the residual catalyst on the inner wall of the tubes cannot be thoroughly cleaned. The purpose of the utility model is to provide a device for extracting waste catalyst from a tube-type reactor.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solution: a device for extracting waste catalyst from a tubular reactor, including a wire brush 1, a blowing and suction pipe 2, a limiting plate 3, a blowing and suction integrated machine 4, and an inlet hose 5.
[0005] The wire brush 1 is fixed to the bottom of the blowing and suction pipe 2, the limiting plate 3 is fixed to the upper part of the blowing and suction pipe 2 by welding, the outlet of the blowing and suction machine 4 is connected to the blowing and suction pipe 2, and the inlet of the blowing and suction machine 4 is connected to the inlet hose 5.
[0006] Furthermore, the wire brush 1 is made of cylindrical stainless steel with an inner diameter of 18 mm and an outer diameter of 22 mm.
[0007] Furthermore, the blowing and suction pipe 2 is made of alloy steel, has a length of 1800 mm and an outer diameter of 18 mm.
[0008] Furthermore, the limiting plate 3 is made of stainless steel and is fixed at 1600 mm above the blowing and suction pipe 2 .
[0009] Furthermore, the inlet hose 5 is made of rubber.
[0010] Compared with the existing gas source pipe extraction catalyst device, the utility model has the following advantages.
[0011] The utility model discloses a device for extracting waste catalyst from a tubular reactor. A blowing and suction pipe 2 is connected to a limit plate 3 to prevent the blowing and suction pipe 2 from extending too long and damaging the wire mesh at the bottom of the reactor tubular reactor, thereby protecting the bottom structure of the reactor and enhancing the safety of the device.
[0012] The utility model discloses a device for extracting waste catalyst from a shell-and-tube reactor. The blower-suction machine 4 uses the blowing mode to disturb the compacted catalyst in the shell and tube, and uses the suction mode to suck out the catalyst in the shell and tube. The wire brush 1 can effectively clean the coked and residual catalyst inside the shell and tube, ensuring that the inside of the shell and tube is unobstructed, so that the new catalyst can meet the requirements of high-load and long-cycle operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is a structural schematic diagram of a device for extracting waste catalyst from a shell-and-tube reactor. DETAILED DESCRIPTION
[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0015] In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle", "inside", "top", "bottom end", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, for example, they can mean fixed connection, detachable connection, or integral connection; they can mean mechanical connection or electrical connection; they can mean direct connection, indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0016] The present invention will be described in further detail below with reference to the accompanying drawings.
[0017] like Figure 1As shown, the utility model provides a device for extracting waste catalyst from a shell-and-tube reactor, comprising a wire brush 1, a blowing and suction pipe 2, a limiting plate 3, a blowing and suction integrated machine 4, and an inlet hose 5.
[0018] The wire brush 1 is fixed to the bottom of the blowing and suction pipe 2. The wire brush 1 is made of cylindrical stainless steel with an inner diameter of 18 mm and an outer diameter of 22 mm. The blowing and suction pipe 2 is made of alloy steel, 1800 mm long and 18 mm in outer diameter. The limiting plate 3 is fixed to the upper part of the blowing and suction pipe 2 by welding. The outlet of the blowing and suction machine 4 is connected to the blowing and suction pipe 2. The limiting plate 3 is made of stainless steel and is fixed at 1600 mm above the blowing and suction pipe 2 to prevent the blowing and suction pipe 2 from extending too long and damaging the wire mesh at the bottom of the reactor tube. The inlet of the blowing and suction machine 4 is connected to the inlet hose 5.
[0019] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
[0020] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A device for extracting waste catalyst from a shell-and-tube reactor, comprising a wire brush (1), a blowing and suction pipe (2), a limit plate (3), a blowing and suction integrated machine (4), and an inlet hose (5), characterized in that The wire brush (1) is fixed to the bottom of the blowing and suction pipe (2), the limiting plate (3) is fixed to the upper part of the blowing and suction pipe (2) by welding, the outlet of the blowing and suction machine (4) is connected to the blowing and suction pipe (2), and the inlet of the blowing and suction machine (4) is connected to the inlet hose (5).
2. The device for extracting spent catalyst from a shell-and-tube reactor according to claim 1, characterized in that The wire brush (1) is cylindrical and made of stainless steel, with an inner diameter of 18 mm and an outer diameter of 22 mm.
3. The device for extracting spent catalyst from a shell-and-tube reactor according to claim 1, characterized in that The blowing and suction pipe (2) is made of alloy steel, has a length of 1800 mm and an outer diameter of 18 mm.
4. The device for extracting spent catalyst from a shell-and-tube reactor according to claim 1, characterized in that The limiting plate (3) is made of stainless steel and is fixed at 1600 mm above the blowing and suction pipe (2).
5. The device for extracting spent catalyst from a shell-and-tube reactor according to claim 1, characterized in that The inlet hose (5) is made of rubber.