Catalyst recovery device in propionitrile production process

Abstract

The utility model discloses a catalyst recovery device in a propionitrile production process, which comprises a support frame, an electromagnetic filtering reaction kettle arranged at the upper part of the support frame, and a fixed flange arranged at the upper part of the electromagnetic filtering reaction kettle, a connecting flange is arranged on the upper portion of the fixing flange, the connecting flange and the fixing flange are fixed through fixing bolts, and an electromagnetic filter mounting base is arranged in the center of the connecting flange. When used catalyst enters the electromagnetic filter, the catalyst is acted by a strong magnetic field, and catalyst particles are captured by the magnetic field and adsorbed in a specific area of the filter due to the fact that the catalyst particles generally have certain magnetism or can be attracted by the magnetic field. And non-magnetic liquid and gas components or liquid and gas components which are not easily attracted by a magnetic field continuously flow, pass through other parts of the filter and are discharged, and as time goes on, a certain amount of catalyst is accumulated on the electromagnetic filter, so that the catalyst can be conveniently recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a catalyst recovery technical field, more specifically, a catalyst recovery device in the production process of propionitrile. BACKGROUND

[0002] Acrylonitrile is an important organic chemical raw material, mainly used for producing synthetic fibers (such as acrylic), synthetic rubber and plastics, etc. In industrial production, the production of acrylonitrile usually adopts specific chemical processes, which are based on complex chemical reactions, aiming at efficiently and safely producing high-quality products. The main raw materials for acrylonitrile production include propylene, ammonia and air (or pure oxygen). Propylene, as the starting material, is converted into acrylonitrile through a series of chemical reactions. Ammonia, as another key raw material for ammonia oxidation reaction, reacts with propylene under the action of catalyst. Air or pure oxygen provides the oxygen atoms required for oxidation.

[0003] In the production process of propionitrile, catalysts are used for reaction, and the catalysts can be recycled and filtered for reuse. Therefore, it is necessary to provide a new technical solution to solve the problem. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a catalyst recovery device in the production process of propionitrile to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a catalyst recovery device in the production process of propionitrile, comprising: a support frame, the upper part of the support frame is provided with an electromagnetic filtration reaction kettle, and the upper part of the electromagnetic filtration reaction kettle is provided with a fixed flange, the upper part of the fixed flange is provided with a connecting flange, and the connecting flange and the fixed flange are fixed through fixed bolts, the center of the connecting flange is provided with an electromagnetic filter mounting seat, and the inside of the electromagnetic filter mounting seat is provided with an electromagnetic filter, the electromagnetic filter extends to the inside of the electromagnetic filtration reaction kettle, the bottom of the electromagnetic filtration reaction kettle is provided with a feed liquid inlet, and the side of the electromagnetic filter mounting seat is provided with a feed liquid outlet, the feed liquid inlet and the feed liquid outlet are connected with the electromagnetic reactor, the upper part of the electromagnetic filter mounting seat is provided with a fixed cover plate, and the fixed cover plate is fixedly connected with the electromagnetic filter, the side of the electromagnetic filter mounting seat is provided with a fixed seat, and the inside of the fixed seat is provided with a movable rod, the movable rod and the fixed seat are rotatably connected, and the surface of the movable rod is provided with a locking piece, the locking piece and the movable rod are threadedly connected, and the periphery of the fixed cover plate is provided with a clamping groove matched with the movable rod.

[0006] As a preferred embodiment of the utility model, the outside of the electromagnetic filtration reaction kettle is provided with a jacket, and the two sides of the jacket are respectively provided with a cooling water inlet and a cooling water outlet, and the surface of the jacket is provided with a controller.

[0007] In a preferred embodiment of this utility model, the bottom of the jacket is provided with a cooling water chamber drain port.

[0008] In a preferred embodiment of this utility model, the bottom of the electromagnetic filtration reactor is provided with an oil chamber drain port.

[0009] In a preferred embodiment of this utility model, the surface of the fixed cover plate is provided with a handle for fixed installation.

[0010] In a preferred embodiment of this utility model, the surface of the locking member is provided with a rotating connecting ring.

[0011] In a preferred embodiment of this utility model, a thermometer, a temperature sensor, and a pressure gauge are provided on the upper part of the fixed flange.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention features an electromagnetic filtration reactor mounted on the upper part of a support frame, with a fixed flange on the upper part of the reactor. A connecting flange is located above the fixed flange and secured to the fixed flange with bolts. An electromagnetic filter mounting base is positioned at the center of the connecting flange, and an electromagnetic filter is installed inside the mounting base, extending into the interior of the electromagnetic filtration reactor. A liquid inlet is located at the bottom of the reactor, and a liquid outlet is located on the side of the mounting base. Both the liquid inlet and outlet are connected to the electromagnetic reactor. The catalyst is transported to the electromagnetic filter through a pipeline system via the liquid inlet. During this process, a pump or other fluid transport equipment may be needed to ensure continuous flow of the mixture. When the used catalyst enters the electromagnetic filter, it is acted upon by a strong magnetic field. Because catalyst particles typically possess a certain degree of magnetism or are attracted by a magnetic field, they are captured and adsorbed in a specific area of ​​the filter. Simultaneously, non-magnetic or less magnetically attracted liquid and gas components continue to flow, passing through other parts of the filter and being discharged. Over time, a certain amount of catalyst accumulates on the electromagnetic filter, facilitating its recycling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a side view of the structure of this utility model from another angle.

[0017] In the figure: 1, support frame; 2, jacket; 3, controller; 4, connecting flange; 5, electromagnetic filter mounting seat; 6, fixed cover plate; 7, handle; 8, temperature sensor; 9, thermometer; 10, pressure gauge; 11, feed liquid outlet; 12, cooling water inlet; 13, electromagnetic filter reaction kettle; 14, fixed flange; 15, oil cavity blowdown; 16, cooling water outlet; 17, feed liquid inlet; 18, cooling water cavity blowdown; 19, fixed seat; 20, movable rod; 21, locking piece; 22, lifting ring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figures 1-3 The present application provides a technical solution: a catalyst recovery device in propionitrile production process,

[0020] In view of the above problems to be solved: in the propionitrile production process, catalysts are used for reaction, and the catalysts can be recovered and filtered for reuse.

[0021] The solution is as follows: a catalyst recovery device in a propionitrile production process, comprising: a support frame 1, the upper part of the support frame 1 is provided with an electromagnetic filtering reaction kettle 13, and the upper part of the electromagnetic filtering reaction kettle 13 is provided with a fixed flange 14, the upper part of the fixed flange 14 is provided with a connecting flange 4, and the connecting flange 4 and the fixed flange 14 are fixed by fixed bolts, the center of the connecting flange 4 is provided with an electromagnetic filter mounting seat 5, and the inside of the electromagnetic filter mounting seat 5 is provided with an electromagnetic filter, the electromagnetic filter extends to the inside of the electromagnetic filtering reaction kettle 13, the bottom of the electromagnetic filtering reaction kettle 13 is provided with a feed liquid inlet 17, and the side of the electromagnetic filter mounting seat 5 is provided with a feed liquid outlet 11, the feed liquid inlet 17 and the feed liquid outlet 11 are connected with the electromagnetic reactor, the upper part of the electromagnetic filter mounting seat 5 is provided with a fixed cover plate 6, and the fixed cover plate 6 is fixedly connected with the electromagnetic filter, the side of the electromagnetic filter mounting seat 5 is provided with a fixed seat 19, and the inside of the fixed seat 19 is provided with a movable rod 20, the movable rod 20 and the fixed seat 19 are rotatably connected, and the surface of the movable rod 20 is provided with a locking piece 21, the locking piece 21 and the movable rod 20 are threadedly connected, the periphery of the fixed cover plate 6 is provided with a clamping groove matched with the movable rod 20, the upper part of the support frame 1 is provided with the electromagnetic filtering reaction kettle 13, the upper part of the electromagnetic filtering reaction kettle 13 is provided with the fixed flange 14, the upper part of the fixed flange 14 is provided with the connecting flange 4, the connecting flange 4 and the fixed flange 14 are fixed by fixed bolts, the center of the connecting flange 4 is provided with the electromagnetic filter mounting seat 5, and the inside of the electromagnetic filter mounting seat 5 is provided with the electromagnetic filter, the electromagnetic filter extends to the inside of the electromagnetic filtering reaction kettle 13, the bottom of the electromagnetic filtering reaction kettle 13 is provided with the feed liquid inlet 17, and the side of the electromagnetic filter mounting seat 5 is provided with the feed liquid outlet 11, the feed liquid inlet 17 and the feed liquid outlet 11 are connected with the electromagnetic reactor, the catalyst is transported from the feed liquid inlet 17 to the electromagnetic filter through the pipeline system, in this process, a pump or other fluid conveying equipment may be used to ensure the continuous flow of the mixture, when the used catalyst enters the electromagnetic filter, it will be affected by a strong magnetic field, because the catalyst particles usually have certain magnetism or can be attracted by the magnetic field, they will be captured and adsorbed by the magnetic field in a certain area of the filter, at the same time, the liquid and gas components which are non-magnetic or not easy to be attracted by the magnetic field continue to flow through other parts of the filter and are discharged, with the passage of time, a certain amount of catalyst will accumulate on the electromagnetic filter, which is convenient for recycling.

[0022] Further improved, as Figure 1 , 2As shown: The electromagnetic filtration reactor 13 is externally equipped with a jacket 2, and cooling water inlet 12 and cooling water outlet 16 are respectively provided on both sides of the jacket 2. A controller 3 is provided on the surface of the jacket 2. The design of the jacket 2 and the cooling water inlet and outlet enables the electromagnetic filtration reactor 13 to control the temperature. By adjusting the flow rate and temperature of the cooling water through the controller 3, the temperature inside the reactor can be effectively controlled, ensuring temperature stability during the catalyst recovery process.

[0023] Further improvements, such as Figure 3 As shown: The bottom of the jacket 2 is provided with a cooling water chamber drain port 18, which facilitates the regular cleaning of dirt and impurities inside the jacket 2 and prevents the cooling water pipe from becoming blocked.

[0024] Further improvements, such as Figure 2 As shown: The bottom of the electromagnetic filter reactor 13 is provided with an oil chamber drain port 15. The design of the oil chamber drain port 15 facilitates the cleaning of oil and other impurities accumulated at the bottom of the reactor.

[0025] Further improvements, such as Figure 1 As shown: The surface of the fixed cover plate 6 is provided with a handle 7 for fixed installation. The design of the handle 7 makes it easy for operators to open and close the fixed cover plate 6, and facilitates the maintenance and cleaning of the electromagnetic filter.

[0026] Further improvements, such as Figure 3 As shown: The surface of the locking member 21 is provided with a rotating lifting ring 22. The design of the lifting ring 22 facilitates the installation and disassembly of the electromagnetic filter using lifting equipment, especially when the electromagnetic filter needs to be replaced or repaired.

[0027] Further improvements, such as Figure 1 As shown: The upper part of the fixed flange 14 is equipped with a thermometer 9, a temperature sensor 8 and a pressure gauge 10. This arrangement enables the operator to monitor key parameters such as temperature and pressure inside the reactor in real time.

[0028] Working principle: the utility model discloses a support frame 1 is provided with electromagnetic filtration reation kettle 13 and the upper portion of electromagnetic filtration reation kettle 13 is provided with fixed flange 14, and the upper portion of fixed flange 14 is provided with connecting flange 4 and is fixed through fixed bolt between connecting flange 4 and fixed flange 14, and the center of connecting flange 4 is provided with electromagnetic filter mounting seat 5 and the inside of electromagnetic filter mounting seat 5 is provided with electromagnetic filter, and electromagnetic filter extends to the inside of electromagnetic filtration reation kettle 13, and the bottom of electromagnetic filtration reation kettle 13 is provided with liquid inlet 17 and the side of electromagnetic filter mounting seat 5 is provided with liquid outlet 11, and liquid inlet 17 and liquid outlet 11 are connected with electromagnetic reactor, and the catalyst is transported to electromagnetic filter by pipeline system from liquid inlet 17, in this process, it may need to use pump or other fluid conveying equipment to ensure the continuous flow of mixture, when the used catalyst enters electromagnetic filter, it will be affected by a strong magnetic field, as catalyst particles usually have certain magnetism or can be attracted by magnetic field, they will be captured by magnetic field and adsorbed in the specific area of filter, at the same time, non-magnetic or not easily attracted by magnetic field liquid and gas components continue to flow, pass through other parts of filter and discharge, with the elapse of time, a certain amount of catalyst will accumulate on electromagnetic filter, and recycling is facilitated.

[0029] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0030] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change.

[0031] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A catalyst recovery apparatus in a propionitrile production process, characterized by: Include: Support frame (1), the upper part of the support frame (1) is provided with an electromagnetic filter reaction kettle (13), and the upper part of the electromagnetic filter reaction kettle (13) is provided with a fixed flange (14), the upper part of the fixed flange (14) is provided with a connecting flange (4), and the connecting flange (4) and the fixed flange (14) are fixed by fixed bolts, the center of the connecting flange (4) is provided with an electromagnetic filter mounting seat (5), and the inside of the electromagnetic filter mounting seat (5) is provided with an electromagnetic filter, the electromagnetic filter extends to the inside of the electromagnetic filter reaction kettle (13), the bottom of the electromagnetic filter reaction kettle (13) is provided with a liquid inlet (17), and the side of the electromagnetic filter mounting seat (5) is provided with a liquid outlet (11), the liquid inlet (17) and the liquid outlet (11) are communicated with the electromagnetic reactor, the upper part of the electromagnetic filter mounting seat (5) is provided with a fixed cover plate (6), and the fixed cover plate (6) is fixedly connected with the electromagnetic filter, the side of the electromagnetic filter mounting seat (5) is provided with a fixed seat (19), and the inside of the fixed seat (19) is provided with a movable rod (20), the movable rod (20) and the fixed seat (19) are rotatably connected, and the surface of the movable rod (20) is provided with a locking piece (21), the locking piece (21) and the movable rod (20) are threadedly connected, and the periphery of the fixed cover plate (6) is provided with a clamping groove matched with the movable rod (20).

2. A catalyst recovery apparatus in a propionitrile production process according to claim 1, characterized in that: The outside of the electromagnetic filter reaction kettle (13) is provided with a jacket (2), and the two sides of the jacket (2) are provided with a cooling water inlet (12) and a cooling water outlet (16), respectively, and the surface of the jacket (2) is provided with a controller (3).

3. A catalyst recovery apparatus in a propionitrile production process according to claim 2, characterized in that: The bottom of the jacket (2) is provided with a cooling water cavity blowdown (18).

4. A catalyst recovery apparatus in a propionitrile production process according to claim 1, characterized in that: The bottom of the electromagnetic filter reaction kettle (13) is provided with an oil cavity blowdown (15).

5. A catalyst recovery apparatus in a propionitrile production process according to claim 1, characterized in that: The surface of the fixed cover plate (6) is provided with a fixedly installed handle (7).

6. A catalyst recovery apparatus in a propionitrile production process according to claim 1, characterized in that: The surface of the locking piece (21) is provided with a rotatably connected lifting ring (22).

7. A catalyst recovery apparatus in a propionitrile production process according to claim 1, characterized in that: The upper part of the fixed flange (14) is provided with a thermometer (9), a temperature sensor (8) and a pressure gauge (10).

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