A purification column for preparing isoprene

Abstract

The utility model belongs to isoprene preparation technical field especially relates to a preparation isoprene's rectifying column, including base, the base top installs preparation device, preparation device left side bottom is provided with evaporation device, preparation device right side is provided with condensation collection device, preparation device includes reaction structure and distribution structure, distribution structure installs in reaction structure top, distribution structure includes asynchronous motor, asynchronous motor output end is connected with transmission part, transmission part inside installation has rotating shaft, rotating shaft bottom end is connected with distribution layer, distribution layer outer surface installs limit strip, limit strip outer surface is connected with limit ring. This preparation isoprene's rectifying column, through the setting of preparation device, utilizes asynchronous motor to drive distribution layer rotation through transmission part and rotating shaft, thereby to the distribution liquid leakage of reaction liquid, thereby effectively makes reaction liquid and filler even contact.

Description

Technical Field

[0001] This utility model relates to the field of isoprene preparation technology, specifically a purification tower for preparing isoprene. Background Technology

[0002] Isoprene, commonly known as 2-methyl-1,3-butadiene, is an organic compound with the molecular formula C5H8. It is a colorless, volatile liquid, insoluble in water but soluble in most organic solvents such as ethanol and ether. It can be prepared by propylene dimerization and is used in the synthesis of rubber and butyl rubber monomers.

[0003] In the preparation process of the purification tower, packing material is required as a carrier. The packing material is filled with inert solids and other materials, which are necessary materials for the preparation of isoprene. However, the packing material in the existing purification tower is fixed in blocks inside the tower, which reduces the contact area between some inert solids and other materials and the reactants, or even prevents them from contacting the reactants. This reduces the preparation rate of isoprene and increases production costs.

[0004] As disclosed in Chinese Patent CN215823089U, a refining tower for preparing isoprene is constructed by a tower body, a distributor penetrating the upper end of the tower body, a conical packing at the upper interior of the tower body, multiple uniformly distributed rings on the sidewalls of the conical packing, a stepped packing inside the conical packing, a funnel-shaped packing at the lower end of the conical packing, plate-shaped packing between the funnel-shaped packing, and a monitoring device at the lower interior of the tower body. This increases the contact area between inert solids and reactants, preventing a decrease in the contact area between some inert solids and reactants, or even preventing contact with reactants, which would lead to a reduction in the isoprene preparation rate, thereby improving the efficiency of isoprene preparation and reducing production costs.

[0005] However, the purification towers used in the existing technology do not facilitate the uniform distribution of the reaction solution during the preparation process, thereby reducing the reaction contact area between the reaction solution and the packing material and affecting the preparation effect.

[0006] Therefore, we urgently need to provide a purification tower for preparing isoprene. Utility Model Content

[0007] The purpose of this invention is to provide a purification tower for preparing isoprene, so as to solve the problem mentioned in the background art that the purification tower used in the prior art is not convenient for uniformly distributing the reaction liquid during the preparation process, thereby reducing the reaction contact area between the reaction liquid and the packing and affecting the preparation effect.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a refining tower for preparing isoprene, comprising a base, a preparation device mounted on the top of the base, an evaporation device disposed at the bottom left side of the preparation device, and a condensation collection device mounted on the right side of the preparation device.

[0009] The preparation apparatus includes a reaction structure and a distribution structure, wherein the distribution structure is mounted on top of the reaction structure.

[0010] The distribution structure includes an asynchronous motor, the output end of which is connected to a transmission component. A rotating shaft is installed inside the transmission component, and a distribution layer is connected to the bottom end of the rotating shaft. A limit strip is installed on the outer surface of the distribution layer, and a limit ring is connected to the outer surface of the limit strip.

[0011] Preferably, the reaction structure includes a tower body, an inlet pipe is installed on the middle left side of the outer surface of the tower body near the top, and a packing layer is installed inside the tower body near the bottom.

[0012] Preferably, the bottom end of the asynchronous motor is detachably connected to the top surface of the tower body, the bottom of the tower body is fixedly connected to the middle of the top surface of the base, the outer surface of the limiting ring is fixedly connected to the inner wall of the tower body, the outer surface of the limiting strip is slidably connected to the inner wall of the convex annular groove in the middle of the limiting ring, and the outer surface of the rotating shaft is connected to the middle of the top surface of the tower body through a sealed bearing. The transmission component is a worm gear with a worm wheel meshing on its outer surface. The worm gear is connected to the output end of the asynchronous motor, the inside of the worm wheel is connected to the rotating shaft, and several through holes are opened on the top surface of the distribution layer.

[0013] Preferably, the evaporation device includes a liquid extraction pipe, a liquid pump is connected to the left end of the liquid extraction pipe, an evaporator is connected to the output end of the liquid pump, and a delivery pipe is installed in the middle of the top surface of the evaporator.

[0014] Preferably, the end of the liquid extraction pipe away from the liquid pump is connected to the middle left side of the tower body near the bottom, and the end of the delivery pipe away from the evaporator is connected to the middle left side of the tower body near the bottom.

[0015] Preferably, the condensation collection device includes an outlet pipe, the right end of which is connected to a condensation tank, the bottom of the outer surface of the condensation tank is connected to a liquid collection pipe, the bottom end of the liquid collection pipe is connected to a liquid storage tank, and a condensation tube is installed on the outer surface of the condensation tank.

[0016] Preferably, the end of the outlet pipe furthest from the condenser is connected to the middle right side of the outer surface of the tower body near the top, and the outer surface of the condenser pipe abuts against the outer surface of the condenser tank. The condenser pipe is spirally wound around the outside of the condenser tank, and the liquid storage tank can collect and store the product.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The purification tower for preparing isoprene utilizes an asynchronous motor to drive the distribution layer to rotate via a transmission component and a rotating shaft, thereby distributing and discharging the reaction liquid and effectively ensuring uniform contact between the reaction liquid and the packing material.

[0019] 2. The purification tower for preparing isoprene, through the setting of a condensation collection device, utilizes condenser tubes to facilitate rapid and uniform condensation of the condenser, thereby ensuring rapid collection and storage of the product after preparation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 This is an enlarged view of the internal structure of this utility model;

[0022] Figure 3 This is an enlarged view of the internal structure of the distribution structure of this utility model;

[0023] Figure 4 This is an enlarged view of the evaporation device of this utility model;

[0024] Figure 5 This is an enlarged view of the condensation collection device of this utility model.

[0025] In the diagram: 1. Base; 101. Tower body; 102. Liquid inlet pipe; 103. Packing layer; 104. Asynchronous motor; 105. Transmission component; 106. Rotating shaft; 107. Distribution layer; 108. Limiting strip; 109. Limiting ring; 201. Liquid extraction pipe; 202. Liquid pump; 203. Evaporator; 204. Delivery pipe; 301. Gas outlet pipe; 302. Condenser; 303. Liquid collection pipe; 304. Liquid storage tank; 305. Condenser pipe. Detailed Implementation

[0026] 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.

[0027] Example 1:

[0028] Due to the problem that existing purification towers do not facilitate uniform distribution of the reaction solution during the preparation process, thus reducing the reaction contact area between the reaction solution and the packing material and affecting the preparation effect, please refer to... Figures 1-3The embodiment provides a purification tower for preparing isoprene, which can effectively improve the uniform contact reaction effect between the reaction liquid and the packing during the preparation process. The purification tower for preparing isoprene includes a base 1, a preparation device is installed on the top of the base 1, an evaporation device is provided on the bottom left side of the preparation device, and a condensation collection device is installed on the right side of the preparation device.

[0029] The preparation apparatus includes a reaction structure and a distribution structure, with the distribution structure mounted on top of the reaction structure. The distribution structure includes an asynchronous motor 104, with a transmission component 105 connected to the output end of the asynchronous motor 104. A rotating shaft 106 is installed inside the transmission component 105, and a distribution layer 107 is connected to the bottom end of the rotating shaft 106. A limiting strip 108 is installed on the outer surface of the distribution layer 107, and a limiting ring 109 is connected to the outer surface of the limiting strip 108. The reaction structure includes a tower body 101, with an inlet pipe 102 installed on the middle left side of the outer surface of the tower body 101 near the top. A packing layer 103 is installed inside the tower body 101 near the bottom.

[0030] The bottom of the asynchronous motor 104 is detachably connected to the top surface of the tower body 101. The bottom of the tower body 101 is fixedly connected to the middle of the top surface of the base 1. The outer surface of the limiting ring 109 is fixedly connected to the inner wall of the tower body 101. The outer surface of the limiting strip 108 is sealed and slidably connected to the inner wall of the convex annular groove in the middle of the limiting ring 109. The outer surface of the rotating shaft 106 is connected to the middle of the top surface of the tower body 101 through a sealed bearing.

[0031] By using the preparation device, the asynchronous motor 104 drives the distribution layer 107 to rotate via the transmission component 105 and the rotating shaft 106, thereby distributing and discharging the reaction liquid, thus effectively making the reaction liquid and the filler in uniform contact.

[0032] During the preparation process, the reaction liquid enters the tower body 101 through the inlet pipe 102. The asynchronous motor 104 is started to drive the transmission component 105. The asynchronous motor 104 drives the worm to rotate. The outer surface of the worm meshes with the worm wheel. The worm wheel drives the rotating shaft 106 to rotate. Thus, the rotating shaft 106 drives the distribution layer 107 to rotate. During the rotation, the distribution layer 107 is sealed and slidably connected to the inner wall of the convex annular groove in the middle of the limiting ring 109 through the outer surface of the limiting strip 108. This ensures the stability of the distribution layer 107 during the rotation. As a result, several through holes are opened on the top surface of the distribution layer 107 to allow liquid to leak evenly. This ensures uniform contact between the reaction liquid and the packing layer 103, effectively improving the reaction effect.

[0033] Example 2:

[0034] Based on Implementation 1, in the existing technology, the condensation rate affects the preparation accuracy during the condensation and collection of distilled products. Please refer to [reference needed]. Figures 4-5This embodiment provides a refining tower for preparing isoprene, which effectively solves the problem of product condensation during preparation. The refining tower includes an evaporation device comprising a liquid extraction pipe 201. A liquid pump 202 is connected to the left end of the liquid extraction pipe 201, and an evaporator 203 is connected to the output end of the liquid pump 202. A delivery pipe 204 is installed in the middle of the top surface of the evaporator 203. The end of the liquid extraction pipe 201 away from the liquid pump 202 is connected to the left side of the tower body 101 near the bottom, and the end of the delivery pipe 204 away from the evaporator 203 is connected to the left side of the tower body 101 near the bottom.

[0035] The condensation collection device includes an outlet pipe 301, the right end of which is connected to a condenser tank 302. A liquid collecting pipe 303 is connected to the bottom of the outer surface of the condenser tank 302, and the bottom end of the liquid collecting pipe 303 is connected to a liquid storage tank 304. A condenser pipe 305 is installed on the outer surface of the condenser tank 302. The end of the outlet pipe 301 away from the condenser tank 302 is connected to the middle right side of the outer surface of the tower body 101 near the top. The outer surface of the condenser pipe 305 abuts against the outer surface of the condenser tank 302.

[0036] By setting up a condensation collection device, the condenser tube 305 facilitates rapid and uniform condensation of the condenser tank 302, thereby ensuring rapid collection and storage of the product after preparation.

[0037] The liquid pump 202 is started and pumps the reaction liquid through the liquid extraction pipe 201, and then delivers it to the evaporator 203. The steam after evaporation in the evaporator 203 is delivered to the tower body 101 through the delivery pipe 204. After the steam reaches the top of the tower body 101, it is delivered into the condenser 302 through the gas outlet pipe 301. The condenser 302 is rapidly condensed by the circulation condensation through the condenser pipe 305. The condensate enters the storage tank 304 through the liquid collection pipe 303, thereby effectively improving the condensation preparation effect of the product.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A refining column for preparing isoprene, comprising a base (1), characterized in that: The base (1) is equipped with a preparation device on top, an evaporation device is provided on the bottom left side of the preparation device, and a condensation collection device is installed on the right side of the preparation device; The preparation apparatus includes a reaction structure and a distribution structure, wherein the distribution structure is installed on top of the reaction structure; The distribution structure includes an asynchronous motor (104), the output end of which is connected to a transmission component (105). A rotating shaft (106) is installed inside the transmission component (105), and a distribution layer (107) is connected to the bottom end of the rotating shaft (106). A limit strip (108) is installed on the outer surface of the distribution layer (107), and a limit ring (109) is connected to the outer surface of the limit strip (108).

2. The purification tower for preparing isoprene according to claim 1, characterized in that: The reaction structure includes a tower body (101), an inlet pipe (102) is installed on the middle left side of the outer surface of the tower body (101) near the top, and a packing layer (103) is installed inside the tower body (101) near the bottom.

3. The purification tower for preparing isoprene according to claim 2, characterized in that: The bottom end of the asynchronous motor (104) is detachably connected to the top surface of the tower body (101). The bottom of the tower body (101) is fixedly connected to the middle of the top surface of the base (1). The outer surface of the limiting ring (109) is fixedly connected to the inner wall of the tower body (101). The outer surface of the limiting strip (108) is sealed and slidably connected to the inner wall of the convex annular groove in the middle of the limiting ring (109). The outer surface of the rotating shaft (106) is connected to the middle of the top surface of the tower body (101) through a sealed bearing.

4. The purification tower for preparing isoprene according to claim 1, characterized in that: The evaporation device includes a liquid extraction pipe (201), the left end of which is connected to a liquid pump (202), the output end of which is connected to an evaporator (203), and a delivery pipe (204) is installed in the middle of the top surface of the evaporator (203).

5. A refining column for preparing isoprene according to claim 4, characterized in that: The end of the liquid extraction pipe (201) away from the liquid pump (202) is connected to the middle left side of the tower body (101) near the bottom, and the end of the delivery pipe (204) away from the evaporator (203) is connected to the middle left side of the tower body (101) near the bottom.

6. The purification tower for preparing isoprene according to claim 1, characterized in that: The condensation collection device includes an outlet pipe (301), the right end of which is connected to a condensation tank (302), the bottom of the outer surface of the condensation tank (302) is connected to a liquid collection pipe (303), the bottom end of the liquid collection pipe (303) is connected to a liquid storage tank (304), and a condensation pipe (305) is installed on the outer surface of the condensation tank (302).

7. A purification tower for preparing isoprene according to claim 6, characterized in that: The end of the outlet pipe (301) away from the condenser (302) is connected to the middle right side of the outer surface of the tower body (101) near the top, and the outer surface of the condenser pipe (305) abuts against the outer surface of the condenser (302).

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