Resin esterification reaction processing kettle

Abstract

This utility model discloses a resin esterification reaction processing vessel, relating to the field of resin esterification processing technology. The vessel body includes a heater installed within it. The heater comprises annular coils arranged in a rectangular array, with a heat transfer medium inlet pipe and a heat transfer medium outlet pipe fixedly connected to both ends of the coils. A one-way backwashing connector is also fixedly connected to the annular coils in an annular array, and the annular coils are fixedly connected to the inner side of the reaction vessel body. This utility model utilizes inclined through-holes and sliding baffles at their ends to close the heat transfer medium during normal flow. When the cleaning fluid moves in the reverse direction, it is discharged through the through-holes, thereby rapidly rinsing the inner side of the reaction vessel body, improving the cleaning efficiency and thus enhancing the esterification effect.

Description

Technical Field

[0001] This utility model specifically relates to the field of resin esterification processing technology, and more specifically to a resin esterification reaction processing kettle. Background Technology

[0002] Resin esterification refers to the process by which active groups such as hydroxyl and carboxyl groups in resin molecules react with alcohols, acids, or ester compounds to form ester bonds and chemically modify the resin. The resin esterification reactor is the core equipment used for the resin esterification reaction. The esterification reactor usually consists of a main container, a stirring system, a heating / cooling system, a material inlet and outlet device, a separation and reflux system, and a control system. The esterification reaction occurs between acids and alcohols (or compounds containing hydroxyl groups) under conditions such as catalysts and heating to produce ester resins.

[0003] However, in practice, it has been noted that the resin produced by esterification has a high viscosity in the later stages of the reaction, and its molecular chains contain polar groups, which easily lead to physical or chemical adsorption on the metal surface of the reactor wall. Therefore, residues will still be generated on the inner wall after the material is discharged. When the resin is esterified again, the raw materials and residues will combine. The residual coking or cross-linked resin may adsorb some of the catalyst, reducing its activity, resulting in a decrease in the reaction rate and a prolongation of the reaction time. Therefore, the interior needs to be cleaned after each esterification. However, due to the complex internal structure, the cleaning process is complicated and takes a long time. Utility Model Content

[0004] The purpose of this invention is to provide a resin esterification reaction vessel. Through an inclined, through-hole spray nozzle and a sliding baffle at its end, the nozzle can be closed during normal flow of the heat transfer medium. When the cleaning liquid moves in the reverse direction, it is discharged through the through-hole spray nozzle, thereby rapidly rinsing the inner side of the reaction vessel. This improves the speed and efficiency of cleaning residues inside the reaction vessel, thus enhancing the esterification effect. This addresses the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A resin esterification reaction processing vessel includes a reaction vessel body and a heater installed in the reaction vessel body. The heater includes annular coils arranged in a rectangular array, and the two ends of the annular coils are respectively fixedly connected to a heat transfer medium inlet pipe and a heat transfer medium outlet pipe.

[0007] The annular coil is also fixedly connected with a one-way backwashing connector in an annular array, and the annular coil is fixedly connected to the inner side of the reactor body, while both ends of the annular coil extend through the reactor body to the outer side.

[0008] As a further technical solution of this utility model, the heat-conducting medium inlet pipe and the heat-conducting medium outlet pipe are respectively fixedly connected to the side of the reactor body, and the inner side of the annular coil is connected to the inner side of the heat-conducting medium inlet pipe and the heat-conducting medium outlet pipe respectively.

[0009] As a further technical solution of this utility model, the one-way backwashing connector includes a main medium flow pipe connected to the annular coil, and a branch pipe integrally provided on the side of the main medium flow pipe, and an inclined through spray hole is provided in the branch pipe, while the end of the through spray hole is connected to the inner side of the main medium flow pipe.

[0010] As a further technical solution of this utility model, a T-shaped groove is provided on the side of the main medium flow pipe near the branch pipe, and a serpentine spring and a sliding baffle are movably connected to the inner side of the T-shaped groove.

[0011] As a further technical solution of this utility model, the two sides of the serpentine spring are engaged with the T-shaped groove, and the sliding baffle is slidably engaged with the inner side of the T-shaped groove. The sliding baffle covers the end of the through spray hole, and the sliding baffle is integrally provided on the side away from the serpentine spring.

[0012] As a further technical solution of this utility model, a stirrer is movably connected to the inner side of the reactor body, and the end of the stirrer passes through the reactor body and is connected to the drive motor above the reactor body, and the drive motor is fixedly connected to the reactor body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the heat-conducting medium enters the annular coil arranged in a rectangular array through the heat-conducting medium inlet pipe, flows through the inner side of the annular coil, and is discharged from the heat-conducting medium outlet pipe. At this time, the heat-conducting medium flows clockwise, which is the same as the elastic force of the serpentine spring. Under the cooperation of the two, the sliding baffle blocks the end of the through water spray hole, thereby preventing the heat-conducting medium from flowing out from the inner side of the through water spray hole, ensuring the normal flow of the heat-conducting medium, and thus heating the resin raw material inside the reactor body;

[0015] 2. In this invention, the cleaning fluid is fed into a ring coil arranged in a rectangular array through a heat transfer medium outlet pipe. After the heat transfer medium flows through the inside of the ring coil, it is discharged through the heat transfer medium inlet pipe. At this time, the heat transfer medium flows counterclockwise. The pressure of the cleaning fluid during the flow will push the sliding baffle to slide inside the T-shaped groove through the opening and closing protrusion, so that the sliding baffle moves away from the inside of the through spray hole. At this time, a part of the cleaning fluid will be sprayed onto the inner wall of the reactor body through the through spray hole to clean the residue remaining inside the reactor body, thereby improving the cleaning efficiency and thus improving the esterification effect.

[0016] 3. This utility model divides the annular coil into multiple segments by using unidirectional backwash joints arranged in a ring array on the annular coil. The multiple segments of the annular coil and the unidirectional backwash joints facilitate the quick disassembly and replacement of any damaged segment of the annular coil and the unidirectional backwash joint, thereby reducing maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0018] Figure 2 This utility model Figure 1 Another perspective view.

[0019] Figure 3 This utility model Figure 2 A magnified view of a portion of the image.

[0020] Figure 4 This is a three-dimensional structural diagram of the heater in this utility model.

[0021] Figure 5 This utility model Figure 4 A magnified view of a portion of the image.

[0022] Figure 6 This is a three-dimensional structural diagram of the unidirectional backwashing connector in this utility model.

[0023] Figure 7 This utility model Figure 6 Rear view.

[0024] Figure 8 This utility model Figure 7 CC section view.

[0025] Figure 9 This is a schematic diagram showing the position and structure of the serpentine spring and sliding baffle in this utility model.

[0026] In the picture:

[0027] Frame body-1, reactor body-2, feed inlet-3, drive motor-4, condenser-5, water distributor-6, water storage tank-7, reflux pipe-8, heater-9, heat transfer medium inlet pipe-91, heat transfer medium outlet pipe-92, annular coil-93, one-way backwash connector-94, main medium flow pipe-941, branch pipe-942, through spray hole-943, T-shaped chute-944, serpentine spring-945, sliding baffle-946, opening and closing protrusion-947, reactor body support-10, steam outlet pipe-11. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-9 This utility model embodiment provides a resin esterification reaction processing kettle, including...

[0030] The reactor body 2 is equipped with a heater 9. The heater 9 includes annular coils 93 arranged in a rectangular array, and the two ends of the annular coils 93 are respectively fixedly connected to a heat transfer medium inlet pipe 91 and a heat transfer medium outlet pipe 92.

[0031] Among them, the annular coil 93 is also fixedly connected with a one-way backwashing connector 94 in an annular array, and the annular coil 93 is fixedly connected to the inner side of the reactor body 2, while both ends of the annular coil 93 extend through the reactor body 2 to the outer side.

[0032] By adopting the above technical solution, the annular coil 93 is divided into multiple segments by the annular array of one-way backwash connectors 94 on the annular coil 93. The multiple segments of the annular coil 93 and the one-way backwash connectors 94 facilitate the quick disassembly and replacement of any damaged segment of the annular coil 93 and the one-way backwash connectors 94, thereby reducing maintenance costs.

[0033] Furthermore, the heat transfer medium inlet pipe 91 and the heat transfer medium outlet pipe 92 are respectively fixedly connected to the side of the reactor body 2, and the inner side of the annular coil 93 is connected to the inner side of the heat transfer medium inlet pipe 91 and the heat transfer medium outlet pipe 92 respectively.

[0034] Furthermore, the one-way backwash connector 94 includes a main medium flow pipe 941 that communicates with the annular coil 93, and a branch pipe 942 integrally provided on the side of the main medium flow pipe 941. An inclined through spray hole 943 is provided in the branch pipe 942, and the end of the through spray hole 943 is connected to the inner side of the main medium flow pipe 941.

[0035] More specifically, the main medium flow pipe 941 is provided with a T-shaped groove 944 on the side near the branch pipe 942, and a serpentine spring 945 and a sliding baffle 946 are movably connected to the inner side of the T-shaped groove 944.

[0036] By adopting the above technical solution, the cleaning fluid is sent into the annular coil 93 arranged in a rectangular array through the heat transfer medium outlet pipe 92. After the heat transfer medium flows through the inside of the annular coil 93, it is discharged through the heat transfer medium inlet pipe 91. At this time, the heat transfer medium flows counterclockwise. The pressure of the cleaning fluid during the flow will push the sliding baffle 946 to slide inside the T-shaped groove 944 through the opening and closing protrusion 947, so that the sliding baffle 946 moves away from the inside of the through spray hole 943. At this time, a part of the cleaning fluid will be sprayed onto the inner wall of the reactor body 2 through the through spray hole 943 to clean the residue remaining on the inside of the reactor body 2, thereby improving the cleaning efficiency and thus improving the esterification effect.

[0037] Furthermore, the two sides of the serpentine spring 945 are engaged with the T-shaped groove 944, and the sliding baffle 946 is slidably engaged with the inner side of the T-shaped groove 944. The sliding baffle 946 covers the end of the through spray hole 943, and the side of the sliding baffle 946 away from the serpentine spring 945 is integrally provided with the sliding baffle 946.

[0038] Furthermore, a stirrer is movably connected to the inner side of the reactor body 2, and the end of the stirrer passes through the reactor body 2 and is connected to the drive motor 4 above the reactor body 2. The drive motor 4 is fixedly connected to the reactor body 2.

[0039] Furthermore, a condenser 5 is provided above the reactor body 2, and a steam outlet pipe 11 is fixedly connected between the condenser 5 and the reactor body 2. The inner side of the steam outlet pipe 11 is connected to one end of the condenser 5 and the inner side of the reactor body 2.

[0040] Furthermore, a water distributor 6 is fixedly connected to the end of the condenser 5 away from the steam outlet pipe 1, and a water storage tank 7 is fixedly connected to the bottom of the water distributor 6. A return pipe 8 is fixedly connected to the side of the water distributor 6, and the other end of the return pipe 8 is connected to the reactor body 2.

[0041] Furthermore, the outer side of the reactor body 2 is welded with a reactor body support 10 in a ring array, and a frame body 1 is provided below the reactor body 2, while the reactor body 2 is fixedly connected to the frame body 1 above by the reactor body support 10.

[0042] More specifically, the reactor body 2 is provided with a feed inlet 3 on the top, and the feed inlet 3 is also provided with a sealing cover. The water separator 6 is connected to the water storage tank 7 and the return pipe 8 respectively, so that the separated water and water-carrying agent enter the water storage tank 7 and the reactor body 2 respectively.

[0043] The working principle of this utility model is as follows: In use, the resin raw material is first poured into the inner side of the reactor body 2 through the feed inlet 3. Then, the drive motor 4 drives the stirrer inside the reactor body 2 to rotate, stirring the raw material inside. Simultaneously, the heat transfer medium enters the annular coil 93 through the heat transfer medium inlet pipe 91. The heat in the heat transfer medium is used to heat the raw material through the annular coil 93. The heat transfer medium in the annular coil 93 is discharged from the heat transfer medium outlet pipe 92. At this time, the heat transfer medium flows smoothly along the inner side of the annular coil 93. The pointer moves, thereby pushing the sliding baffle 946 to block the end of the through spray hole 943 through the opening and closing protrusion 947. At the same time, the spring thrust of the serpentine spring 945 ensures the sealing effect of the through spray hole 943. The raw materials inside the reactor body 2 will undergo esterification reaction. The steam generated during the reaction will enter the condenser 5 through the steam outlet pipe 11 for condensation. The condensed liquid enters the water separator 6 for separation. The water is sent from the bottom of the water separator 6 to the inside of the water storage tank 7. The water-containing agent is returned to the reactor body 2 for recycling.

[0044] During cleaning, the heat-conducting medium inside the annular coil 93 is first drained. Then, the cleaning fluid is fed back into the annular coil 93 through the heat-conducting medium outlet pipe 92. The cleaning fluid rotates counterclockwise inside the annular coil 93. At this time, the cleaning fluid pushes the sliding baffle 946 away from the end of the through-spray hole 943 through the opening and closing protrusion 947. Part of the cleaning fluid is sprayed onto the inner wall of the reactor body 2 through the through-spray hole 943, thereby quickly cleaning the residue on the inner wall of the reactor body 2, shortening the cleaning time, improving the cleaning effect, and thus improving the esterification quality. The structure is simple, the operation is very convenient, and it effectively reduces the intensity of manual labor.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A resin esterification reaction vessel, characterized in that: include The reactor body (2) is equipped with a heater (9). The heater (9) includes an annular coil (93) arranged in a rectangular array. The two ends of the annular coil (93) are respectively fixedly connected to a heat transfer medium inlet pipe (91) and a heat transfer medium outlet pipe (92). Among them, the annular coil (93) is also fixedly connected with a one-way backwashing connector (94) in an annular array, and the annular coil (93) is fixedly connected to the inner side of the reactor body (2), and both ends of the annular coil (93) extend through the reactor body (2) to the outside.

2. The resin esterification reaction vessel according to claim 1, characterized in that: The heat transfer medium inlet pipe (91) and heat transfer medium outlet pipe (92) are respectively fixedly connected to the side of the reactor body (2), and the inner side of the annular coil (93) is connected to the inner side of the heat transfer medium inlet pipe (91) and heat transfer medium outlet pipe (92).

3. The resin esterification reaction vessel according to claim 2, characterized in that: The one-way backwash connector (94) includes a main medium flow pipe (941) connected to the annular coil (93), and a branch pipe (942) is integrally provided on the side of the main medium flow pipe (941). An inclined through spray hole (943) is provided in the branch pipe (942), and the end of the through spray hole (943) is connected to the inside of the main medium flow pipe (941).

4. The resin esterification reaction vessel according to claim 3, characterized in that: The main medium flow pipe (941) is provided with a T-shaped groove (944) on the side near the branch pipe (942), and a serpentine spring (945) and a sliding baffle (946) are movably connected to the inner side of the T-shaped groove (944).

5. The resin esterification reaction vessel according to claim 4, characterized in that: The two sides of the serpentine spring (945) are engaged with the T-shaped groove (944), and the sliding baffle (946) is slidably engaged with the inner side of the T-shaped groove (944). The sliding baffle (946) covers the end of the through water spray hole (943), and the side of the sliding baffle (946) away from the serpentine spring (945) is integrally provided with the sliding baffle (946).

6. The resin esterification reaction vessel according to claim 5, characterized in that: A stirrer is movably connected to the inner side of the reactor body (2), and the end of the stirrer passes through the reactor body (2) and is connected to the drive motor (4) above the reactor body (2). The drive motor (4) is fixedly connected to the reactor body (2).

7. The resin esterification reaction vessel according to claim 6, characterized in that: A condenser (5) is provided above the reactor body (2), and a steam outlet pipe (11) is fixedly connected between the condenser (5) and the reactor body (2). The inner side of the steam outlet pipe (11) is connected to one end of the condenser (5) and the inner side of the reactor body (2).

8. The resin esterification reaction vessel according to claim 7, characterized in that: The condenser (5) is also fixedly connected to a water separator (6) at one end away from the steam outlet pipe (11), and a water storage tank (7) is fixedly connected to the bottom of the water separator (6). A return pipe (8) is also fixedly connected to the side of the water separator (6), and the other end of the return pipe (8) is connected to the reactor body (2).

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