Material mixing assembly based on anti-alkylation system

Abstract

The utility model discloses a material mixing assembly based on an anti-alkylation system, which comprises a mixing pipe, one end of the mixing pipe is welded and communicated with a main material inlet pipe, the other end of the mixing pipe is welded and communicated with a mixed material outlet pipe, the top of the mixing pipe is welded with an ingredient inlet pipe, and the bottom end face of the ingredient inlet pipe extends into the mixing pipe. The top of the ingredient inlet pipe is welded and communicated with an auxiliary ingredient pipe, two spray heads are mounted on the outer wall, close to the bottom end face, of the ingredient inlet pipe, and the two spray heads and the main materials are sprayed in opposite directions. According to the utility model, the two spray heads are arranged on the intersection end surface of the proportioning material and the main material, so that the proportioning material is converged with the main material in a spraying manner, and the spraying direction is opposite to the flow direction of the main material, so that the mixing effect of the main material and the proportioning material is improved, and the main material and the proportioning material are subjected to an anti-alkylation reaction in a reactor, and the mixing efficiency is improved. The generation of byproduct heavy aromatics is reduced, and meanwhile, the service life of the catalyst is also prolonged.

Description

Technical Field

[0001] This utility model relates to the field of anti-hydrocarbonation application technology, and in particular to a material mixing component based on an anti-hydrocarbonation system. Background Technology

[0002] The dehydrocarbonization system is a chemical process used to convert poly(ethylbenzene) into ethylbenzene. This system is particularly important in the petrochemical industry because it can not only increase the yield of ethylbenzene, but also effectively utilize by-products and reduce resource waste. The main function of the dehydrocarbonization reactor is to convert poly(isopropylbenzene) back into cumene through the dehydrocarbonization reaction with benzene, thereby reducing the consumption of benzene and propylene.

[0003] The original two pipelines for the main liquid material and the proportioning material were merged into a unified pipeline before entering the dehydrocarbonization system, resulting in uneven mixing of the materials and uneven reaction during the dehydrocarbonization process. This led to an increase in the amount of heavy aromatics produced as a byproduct and also affected the service life of the catalyst. Therefore, this invention proposes a material mixing component based on the dehydrocarbonization system. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a material mixing component based on a dehydrocarbonization system. By setting two nozzles at the intersection of the proportioned material and the main material, the proportioned material is sprayed to merge with the main material, and the spraying direction is set opposite to the flow direction of the main material, thereby improving the mixing effect of the main material and the proportioned material. As a result, after entering the reactor for dehydrocarbonization reaction, the generation of by-product heavy aromatics is reduced, and the service life of the catalyst is also extended.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a material mixing component based on a dehydrocarbonization system, including a mixing pipe, one end of which is welded to a main material inlet pipe, the other end of which is welded to a mixing outlet pipe, a batching inlet pipe welded to the top of the mixing pipe, and the bottom end face of the batching inlet pipe extending into the interior of the mixing pipe, a batching auxiliary pipe welded to the top of the batching inlet pipe, two nozzles installed on the outer wall of the batching inlet pipe near the bottom end face, and the spraying direction of the two nozzles being opposite to the flow direction of the main material inlet pipe, and a baffle is provided on the outer wall of the batching inlet pipe at the middle position of the two nozzles.

[0006] The present invention is further configured such that: a valve A is installed at the middle position of the main material inlet pipe, and the inner diameter of the main material inlet pipe is smaller than the inner diameter of the mixing pipe.

[0007] Through the above technical solution, valve A can be used to control the opening and closing of the main material inlet pipe, making it convenient for the main material to be mixed to flow into the interior of the mixing pipe.

[0008] The present invention is further configured such that: a valve B is installed at the middle position of the mixing discharge pipe, and a reactor is connected to the end face of the mixing discharge pipe; the inner diameter of the mixing discharge pipe is equal to the inner diameter of the main material inlet pipe.

[0009] Through the above technical solution, valve B can be used to control the opening and closing of the mixing discharge pipe, so that the mixed material can enter the external reactor for reaction.

[0010] The present invention is further configured such that: the feed inlet pipe is L-shaped, and a manual valve, a regulating valve and a flow meter are installed sequentially in the direction of flow; at the same time, the inner diameter of the main feed inlet pipe is equal to twice the inner diameter of the feed inlet pipe.

[0011] The above technical solution allows for easy opening and closing of the feed pipe using a manual valve, while the flow rate of the feed pipe can be controlled using a regulating valve. Furthermore, the addition of a flow meter enables real-time monitoring of the proportioned materials, facilitating the uniform mixing of the proportioned materials and the main materials.

[0012] The present invention is further configured such that: the sub-pipe for dispensing is inverted U-shaped, the inlet is located near the hand valve, the outlet is located near the flow meter, and a valve C is installed on the top of the sub-pipe for dispensing.

[0013] Through the above technical solution, valve C can be used to control the opening and closing of the batching sub-pipe, thereby facilitating the input of batching materials in coordination with the batching inlet pipe.

[0014] The present invention is further configured such that: the baffle is arranged in an umbrella shape, and the outer wall is provided with multiple slots, the multiple slots are arranged equidistantly in the circumferential direction on the baffle, and the end face of the baffle is fixedly connected to a connecting column, and the end face of the connecting column is installed on the outer wall of the feeding pipe.

[0015] Through the above technical solution, the connecting column can stably install the baffle on the outer wall of the batching inlet pipe, and the multiple slots opened on the baffle can be used to divide the main material, thereby making the main material and the proportioned material evenly mixed.

[0016] The present invention is further configured such that the circumferential center of the stop block and the circumferential center of the main material inlet pipe are on the same horizontal plane.

[0017] The above technical solution allows the main material to accurately impact the surface of the baffle after passing through the main material inlet pipe, thereby enabling the main material to diffuse and mix with the sprayed proportioned material, thus improving the mixing efficiency.

[0018] The beneficial effects of this utility model are as follows:

[0019] The material mixing component based on the dehydrocarbonization system proposed in this utility model has two nozzles at the intersection of the proportioned material and the main material, so that the proportioned material is sprayed to merge with the main material, and the spraying direction is set opposite to the flow direction of the main material, thereby improving the mixing effect of the main material and the proportioned material. As a result, after entering the reactor for dehydrocarbonization reaction, the generation of by-product heavy aromatics is reduced, and the service life of the catalyst is also extended. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the material mixing component based on the anti-hydrocarbonation system of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the material mixing component based on the anti-hydrocarbonation system of this utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0023] In the diagram: 1. Mixing pipe; 2. Main material inlet pipe; 21. Valve A; 3. Mixing outlet pipe; 31. Valve B; 4. Batching inlet pipe; 41. Manual valve; 42. Regulating valve; 43. Flow meter; 5. Batching auxiliary pipe; 51. Valve C; 6. Nozzle; 7. Baffle; 71. Groove; 72. Connecting column. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0025] like Figures 1-2As shown, the material mixing component based on the dehydrocarbonization system includes a mixing pipe 1. One end of the mixing pipe 1 is welded to a main material inlet pipe 2. A valve A21 is installed in the middle of the main material inlet pipe 2, and the inner diameter of the main material inlet pipe 2 is smaller than the inner diameter of the mixing pipe 1. The valve A21 can be used to control the opening and closing of the main material inlet pipe 2, facilitating the flow of the main material to be mixed into the interior of the mixing pipe 1. The other end of the mixing pipe 1 is welded to a mixing outlet pipe 3. A valve B31 is installed in the middle of the mixing outlet pipe 3, and a reactor is connected to the end face of the mixing outlet pipe 3. The inner diameter of the mixing outlet pipe 3 is equal to the inner diameter of the main material inlet pipe 2. The valve B31 can be used to control the flow of the mixing outlet pipe 3. The mixing pipe 1 is equipped with an opening and closing control system to allow the mixed materials to enter the external reactor for reaction. A feeding inlet pipe 4 is welded to the top of the mixing pipe 1, and the bottom end of the feeding inlet pipe 4 extends into the interior of the mixing pipe 1. The feeding inlet pipe 4 is L-shaped and is equipped with a manual valve 41, a regulating valve 42, and a flow meter 43 sequentially in the flow direction. The inner diameter of the main material inlet pipe 2 is twice the inner diameter of the feeding inlet pipe 4, facilitating the opening and closing control of the feeding inlet pipe 4 using the manual valve 41. The regulating valve 42 controls the flow rate of the feeding inlet pipe 4, and the flow meter 43 allows for real-time monitoring of the proportioned materials, ensuring uniform mixing of the proportioned materials and the main material. The top of the feeding inlet pipe 4... A sub-pipe 5 is welded and connected. The sub-pipe 5 is inverted U-shaped, with its inlet near the hand valve 41 and its outlet near the flow meter 43. A valve C51 is installed at the top of the sub-pipe 5, which can be used to control the opening and closing of the sub-pipe 5, thus facilitating the input of materials that can be proportioned in conjunction with the feed pipe 4. Two nozzles 6 are installed on the outer wall of the feed pipe 4 near the bottom end face, and the spraying direction of the two nozzles 6 is opposite to the flow direction of the main feed pipe 2. A baffle 7 is set on the outer wall of the feed pipe 4, located between the two nozzles 6. The baffle 7 is umbrella-shaped and has multiple slots 71 on its outer wall. 1. The baffles 7 are arranged equidistantly in a circular direction. The end face of the baffles 7 is fixedly connected to the connecting post 72, and the end face of the connecting post 72 is installed on the outer wall of the feeding pipe 4. The connecting post 72 can stably install the baffles 7 on the outer wall of the feeding pipe 4. The baffles 7 are divided by multiple slots 71 opened on the baffles 7, so that the main material and the proportioned material can be mixed evenly. The circumferential center of the baffles 7 and the circumferential center of the main material feeding pipe 2 are at the same level, so that the main material can accurately impact the surface of the baffles 7 after passing through the main material feeding pipe 2, so that the main material can diffuse and then mix with the sprayed proportioned material, thereby improving the mixing efficiency.

[0026] In use, the present invention first injects the corresponding main material and proportioned material through the main material inlet pipe 2 and the proportioning inlet pipe 4 respectively. Then, after the main material passes through the main material inlet pipe 2, it impacts the baffle 7. The main material can be divided into multiple portions by the multiple slots 71. At the same time, after the proportioned material passes through the proportioning inlet pipe 4, it is diffused and sprayed out through two nozzles 6, so that the sprayed proportioned material and the divided main material are quickly and evenly mixed. Finally, it enters the external reactor through the mixing outlet pipe 3 for reaction.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A material mixing assembly based on a dehydrocarbonization system, comprising a mixing tube (1), characterized in that: One end of the mixing pipe (1) is welded to the main material inlet pipe (2), and the other end of the mixing pipe (1) is welded to the mixing outlet pipe (3). The top of the mixing pipe (1) is welded to the batching inlet pipe (4), and the bottom end face of the batching inlet pipe (4) extends into the interior of the mixing pipe (1). The top of the batching inlet pipe (4) is welded to the batching sub-pipe (5). Two nozzles (6) are installed on the outer wall of the batching inlet pipe (4) near the bottom end face, and the spraying direction of the two nozzles (6) is opposite to the flow direction of the main material inlet pipe (2). A baffle (7) is provided on the outer wall of the batching inlet pipe (4) in the middle of the two nozzles (6).

2. The material mixing component based on the anti-hydrocarbonation system according to claim 1, characterized in that: A valve A (21) is installed in the middle of the main material inlet pipe (2), and the inner diameter of the main material inlet pipe (2) is smaller than the inner diameter of the mixing pipe (1).

3. The material mixing component based on the anti-hydrocarbonation system according to claim 2, characterized in that: A valve B (31) is installed in the middle of the mixing discharge pipe (3), and a reactor is connected to the end face of the mixing discharge pipe (3). The inner diameter of the mixing discharge pipe (3) is equal to the inner diameter of the main material inlet pipe (2).

4. The material mixing component based on the anti-hydrocarbonation system according to claim 3, characterized in that: The feed inlet pipe (4) is L-shaped and is equipped with a hand valve (41), a regulating valve (42) and a flow meter (43) in sequence in the direction of flow. Meanwhile, the inner diameter of the main feed inlet pipe (2) is twice the inner diameter of the feed inlet pipe (4).

5. The material mixing component based on the anti-hydrocarbonation system according to claim 4, characterized in that: The sub-pipe (5) is U-shaped, with the inlet near the hand valve (41) and the outlet near the flow meter (43). A valve C (51) is installed on the top of the sub-pipe (5).

6. The material mixing component based on the anti-hydrocarbonation system according to claim 1, characterized in that: The baffle (7) is arranged in an umbrella shape and has multiple slots (71) on its outer wall. The multiple slots (71) are arranged equidistantly in the circumferential direction on the baffle (7). A connecting column (72) is fixedly connected to the end face of the baffle (7), and the end face of the connecting column (72) is installed on the outer wall of the feed pipe (4).

7. The material mixing component based on the anti-hydrocarbonation system according to claim 6, characterized in that: The circumferential center of the stop block (7) is on the same horizontal plane as the circumferential center of the main material inlet pipe (2).

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