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CN-121971911-A - Low-cost combined recovery device for BDO byproduct butanol

CN121971911ACN 121971911 ACN121971911 ACN 121971911ACN-121971911-A

Abstract

The application provides a low-cost combined recovery device for BDO byproduct butanol, which relates to the technical field of butanol recovery and comprises a reaction tower arranged on a horizontal plane, wherein a feed pipe is fixedly connected to the reaction tower, a filter screen is fixedly connected to the inside of the feed pipe, a strip-shaped scraper is connected to one side of the filter screen in a sliding manner and is used for cleaning the surface of the filter screen, a pushing cylinder is fixedly connected to the side wall of the feed pipe, and an output shaft of the pushing cylinder is fixedly connected with the strip-shaped scraper. The application can effectively solve the problems of equipment blockage, abrasion, mass transfer efficiency reduction and the like caused by particles in the traditional recovery process, and ensure the continuous and stable operation of the BDO byproduct butanol recovery device.

Inventors

  • ZHENG DAKE
  • ZHANG CHANGXIANG
  • SUN JUNWEI
  • ZHANG ZHAOLEI
  • ZHENG HUAILIANG
  • LI MENG

Assignees

  • 河南丰利源新材料有限公司

Dates

Publication Date
20260505
Application Date
20260330

Claims (9)

  1. 1. The low-cost combined recovery device for BDO byproduct butanol is characterized by comprising a reaction tower (1) arranged on a horizontal plane, wherein a feed pipe (11) is fixedly connected to the reaction tower (1), a filter screen (12) is fixedly connected to the inside of the feed pipe (11), a strip-shaped scraper (13) is slidably connected to one side of the filter screen (12), the strip-shaped scraper (13) is used for cleaning the surface of the filter screen (12), a pushing cylinder (14) is fixedly connected to the side wall of the feed pipe (11), and an output shaft of the pushing cylinder (14) is fixedly connected with the strip-shaped scraper (13).
  2. 2. The BDO byproduct butanol low-cost combined recovery device of claim 1, wherein a pushing rack (2) is fixedly connected to the side wall of the strip-shaped scraping plate (13), a rotating gear (21) is rotatably connected to the side wall of the feeding pipe (11), the rotating gear (21) can be meshed with the pushing rack (2) and rotate under the driving of the pushing rack (2), a discharging hole (22) is formed in the feeding pipe (11), a rotating turning plate (23) is rotatably connected to the feeding pipe (11), a driven gear (24) is fixedly connected to the side wall of the rotating turning plate (23), the driven gear (24) can be meshed with the rotating gear (21), and the rotating turning plate (23) can block communication of the feeding pipe (11).
  3. 3. The low-cost combined recovery device of BDO byproduct butanol according to claim 2, wherein an elastic spring piece (3) is fixedly connected to the filter screen (12), a pushing block (31) is fixedly connected to the strip-shaped scraping plate (13), the pushing block (31) can collide with the elastic spring piece (3) when moving downwards, and the elastic spring piece (3) is used for driving the filter screen (12) to vibrate to a certain extent.
  4. 4. The BDO byproduct butanol low-cost combined recovery device of claim 2, wherein a collecting chute (4) slides on the feeding pipe (11), the collecting chute (4) is arranged below the discharging hole (22), the collecting chute (4) is used for collecting impurities on the filter screen (12), and an opening of the collecting chute (4) can be plugged in the process that the rotating turning plate (23) rotates towards the position close to the collecting chute (4).
  5. 5. The BDO byproduct butanol low-cost combined recovery device according to claim 2, wherein a connecting pipe (5) is rotatably connected inside the reaction tower (1), the connecting pipe (5) is arranged in a hollow mode, a rotating pipe (51) is rotatably sleeved inside the connecting pipe (5), a connecting block (52) is rotatably communicated with the connecting pipe (5), three distributing pipes (53) are fixedly connected to the connecting block (52), the distributing pipes (53) are axially distributed on the connecting block (52), distributing holes (54) are formed in the distributing pipes (53), and the rotating pipe (51) is fixedly connected with the connecting block (52).
  6. 6. The BDO byproduct butanol low-cost combined recovery device according to claim 5, wherein a first pushing tube (6) is fixedly connected inside the reaction tower (1), the first pushing tube (6) is fixedly communicated with the connecting tube (5), the first pushing tube (6) is fixedly communicated with the feeding tube (11), pushing paddles (61) are fixedly connected to the rotating tube (51), and the pushing paddles (61) are used for pushing the rotating tube (51) to drive the distributing tube (53) to rotate after liquid enters the connecting tube (5).
  7. 7. The low-cost combined recovery device of BDO byproduct butanol according to claim 2, wherein a second pushing tube (7) is arranged on the reaction tower (1), the second pushing tube (7) is communicated with the feeding tube (11), and the second pushing tube (7) is used for introducing liquid for desorption.
  8. 8. The low-cost combined recovery device of BDO byproduct butanol according to claim 2, wherein a storage filter plate (8) is fixedly connected inside the reaction tower (1), and the storage filter plate (8) can store adsorbed materials and enable the materials needing to be desorbed to fall onto the storage filter plate (8).
  9. 9. The low-cost combined recovery device of BDO byproduct butanol according to claim 2, wherein a heating wire (9) for heating the inside of the reaction tower (1) is arranged at the position of the cylinder wall of the reaction tower (1).

Description

Low-cost combined recovery device for BDO byproduct butanol Technical Field The application relates to the technical field of butanol recovery, in particular to a low-cost combined recovery device for BDO byproduct butanol. Background BDO by-products refer to by-products such as tetrahydrofuran, gamma-butyrolactone, n-butanol and the like which are generated in the production process of the 1, 4-butanediol, and in BDO hydrogenation processes such as an alkynal method, a maleic anhydride method and the like, when excessive hydrogen is generated, the reaction temperature is higher or the catalyst selectivity change initiates excessive hydrogenation, BDO or an intermediate product gamma-butyrolactone can be further hydrocracked to generate butanol, and the butanol is mainly used as a paint and ink solvent and is also an important chemical raw material for preparing plasticizers, medical intermediates, fragrances and herbicides. When the particles enter the rectifying tower, the particles are attached to the surface of the tower plate or the filler, so that the gas-liquid mass transfer efficiency is reduced, the butanol separation and purification effect is poor, the product purity and the yield are reduced, and the particles are easy to bond with heavy components to form scaling and coke in a high-temperature rectifying section, so that the heat exchange efficiency is further reduced, the equipment blockage is aggravated, the continuous stable operation of the whole recycling device is finally influenced, and the turbidity of the recovered butanol product is possibly exceeded, and the impurity content is disqualified. In summary, when the BDO byproduct butanol is recovered, the BDO byproduct butanol needs to be initially filtered to protect equipment components such as a pump body, a valve and the like. Disclosure of Invention In view of the above, the application provides a low-cost combined recovery device of BDO byproduct butanol, which is used for reducing the consumption of byproduct butanol during recovery, and pushing a distribution pipe to rotate through the flow velocity of butanol, so that the butanol can be conveniently and uniformly distributed when being adsorbed. In order to solve the technical problems, the invention provides a low-cost combined recovery device for BDO byproduct butanol, which comprises a reaction tower arranged on a horizontal plane, wherein a feed pipe is fixedly connected to the reaction tower, a filter screen is fixedly connected to the inside of the feed pipe, a strip-shaped scraper is slidably connected to one side of the filter screen and is used for cleaning the surface of the filter screen, a pushing cylinder is fixedly connected to the side wall of the feed pipe, and an output shaft of the pushing cylinder is fixedly connected with the strip-shaped scraper. Through adopting above-mentioned technical scheme, can carry out preliminary filtration to BDO byproduct butanol to get rid of the small amount of solid impurity that is generated because of the reaction in the crude, reduce the probability that impurity blocks up the adsorbent pore, and can increase adsorption efficiency and adsorbent life-span. Optionally, fixedly connected with promotes the rack on the lateral wall of bar scraper blade, rotate on the lateral wall of inlet pipe and be connected with rotation gear, rotation gear can with promote rack engagement, and it rotates to promote under the drive of rack, the discharge gate has been seted up on the inlet pipe, rotate on the inlet pipe and be connected with the rotation and turn over the board, fixedly connected with driven gear on the lateral wall of turning over the board, driven gear can with rotation gear engagement, just the rotation turns over the board can be right the UNICOM of inlet pipe carries out the separation. Through adopting above-mentioned technical scheme, effectively avoided impurity at the inside piling up of inlet pipe to the problem that the impurity probably causes the jam in the clearance process has been solved. Simultaneously, under the non-clearance state, rotate and turn over the position that the board can rotate to closing the discharge gate, separation inlet pipe's UNICOM prevents that the material from leaking or impurity from flowing back. The linkage control mechanism realizes the automatic and efficient discharge of impurities, ensures the continuous and stable operation of the device, avoids the reduction of recovery efficiency caused by blockage, and further improves the recovery efficiency of BDO byproduct butanol and the overall reliability of the device. Optionally, fixedly connected with elasticity shell fragment on the filter screen, fixedly connected with promotes the piece on the bar scraper blade, promote the piece can collide with elasticity shell fragment when moving down, elasticity shell fragment is used for driving the filter screen and carries out vibrations of certain degree. Through adopting above-mentioned