Search

CN-224220768-U - Rectifying device for furfural production

CN224220768UCN 224220768 UCN224220768 UCN 224220768UCN-224220768-U

Abstract

The utility model relates to a relevant technical field of furfural production, an embodiment of the disclosure provides a rectifying device for furfural production, and it includes shell and heat transfer clarification plant, and heat transfer clarification plant sets up at the shell top, and preheating component sets up inside the shell, and the inner tube sets up inside the shell, and exhaust component sets up on inner tube and shell, and stirring heating component sets up inside the shell, and preheating component includes the inner cover, and the inner cover is fixed at shell top one end, and shell outer wall internally mounted has a plurality of first heating pipe, and shell one side is provided with the access pipe, and the access pipe is linked together with the inner cover is inside, the inner cover bottom is provided with the dispersion hole. Through the technical scheme, the technical problems that a large amount of heat energy is required to be consumed and the heating efficiency is low in order to enable all raw materials to reach the evaporation temperature in the prior art are solved.

Inventors

  • DU ZELIN
  • Du Zhenxian
  • BIAN LEI
  • WANG HONGLIANG
  • ZHANG YONG

Assignees

  • 石家庄市藁城区康丰化工有限公司

Dates

Publication Date
20260512
Application Date
20250603

Claims (8)

  1. 1. A rectifying device for producing furfural, which is characterized by comprising: The heat exchange purification device comprises a shell (1) and heat exchange purification equipment (2), wherein the heat exchange purification equipment (2) is arranged at the top of the shell (1); A preheating component (4), wherein the preheating component (4) is arranged inside the shell (1); An inner pipeline (3) and an exhaust assembly (6), wherein the inner pipeline (3) is arranged inside the shell (1), and the exhaust assembly (6) is arranged on the inner pipeline (3) and the shell (1); a stirring heating assembly (5), wherein the stirring heating assembly (5) is arranged inside the shell (1); The preheating component (4) comprises an inner cover (4-1), the inner cover (4-1) is fixed at one end of the top of the outer shell (1), a plurality of first heating pipes (4-2) are installed inside the outer wall of the outer shell (1), an access pipe (4-3) is arranged on one side of the outer shell (1), the access pipe (4-3) is communicated with the inner part of the inner cover (4-1), and dispersing holes (4-4) are formed in the bottom of the inner cover (4-1).
  2. 2. The rectifying device for furfural production according to claim 1, wherein the stirring and heating assembly (5) comprises a central shaft (5-1), the central shaft (5-1) is rotatably connected inside the shell (1), a driving motor (5-2) is arranged on one side of the shell (1), and an output end of the driving motor (5-2) is connected with the central shaft (5-1).
  3. 3. The rectifying device for furfural production according to claim 2, characterized in that spiral blades (5-3) are arranged at two ends of the central shaft (5-1), a plurality of fixing rods (5-4) are arranged on the inner wall of the shell (1), rectifying fillers (5-5) are fixedly connected between the fixing rods (5-4), the rectifying fillers (5-5) are rotationally sleeved outside the central shaft (5-1), and a plurality of groups of second heating pipes (5-6) are fixedly connected inside the shell (1).
  4. 4. The rectifying device for furfural production according to claim 1, wherein the exhaust assembly (6) comprises a plurality of air inlets (6-1), the air inlets (6-1) are uniformly formed in the side end faces of the inner pipelines (3), one ends of the inner pipelines (3) are located outside the shell (1), and a second motor (6-2) is arranged at one ends of the inner pipelines (3).
  5. 5. The rectifying device for furfural production according to claim 4, wherein a spiral impeller (6-3) is arranged at the output end of the second motor (6-2), the spiral impeller (6-3) is positioned in the inner pipeline (3), a connecting pipeline (6-4) is arranged at the top of one end of the inner pipeline (3), and one end of the connecting pipeline (6-4) is connected with the air inlet end of the heat exchange purification equipment (2).
  6. 6. A rectifying unit for furfural production according to claim 3, characterized in that the spiral directions of a pair of said spiral blades (5-3) are opposite.
  7. 7. Rectifying device for the production of furfural according to claim 1, characterized in that the surface of said housing (1) on which said first heating pipe (4-2) is mounted is of an inclined structure, said inner cover (4-1) being located at the highest of the inclined portions of said housing (1).
  8. 8. A rectifying device for producing furfural according to claim 3, characterized in that a plurality of groups of the second heating pipes (5-6) are uniformly distributed on the periphery of the central shaft (5-1) in a circular ring-shaped point position.

Description

Rectifying device for furfural production Technical Field The embodiment of the disclosure relates to the technical field related to furfural production, in particular to a rectifying device for furfural production. Background Furfural is used as an important chemical raw material and is widely applied to a plurality of fields of petroleum, chemical industry, medicine and the like. In the production process of furfural, rectification is a key link, and the purpose of the rectification is to obtain a high-purity furfural product from a reaction product through separation and purification. However, the existing rectifying device for furfural production has a plurality of problems in the operation process, and the production efficiency and the product quality are seriously affected. Currently, many rectifying devices for producing furfural have shortcomings in terms of raw material treatment, and the mode of intensively inputting raw materials and heating together is inefficient. In actual production, the reaction product components are complex, including furfural, moisture, and other impurities. When these materials are intensively fed into a rectifying apparatus, it is difficult to make each component under optimal evaporation and separation conditions when heated together due to a large difference in boiling points of the components. For example, furfural has a boiling point of about 161.7 ℃ while water has a boiling point of 100 ℃ and other impurities have different boiling points. When concentrated heating, low boiling point components may be excessively evaporated, while high boiling point furfural is not sufficiently separated, so that the rectification efficiency is low, and the purity of the product is difficult to ensure. In addition, concentrated heating also easily causes waste of energy. In order to achieve the evaporation temperature of all the raw materials, a large amount of heat energy is often consumed, wherein a part of the heat energy is excessively absorbed by the low-boiling components, and the energy actually used for separating the furfural is relatively insufficient. This not only increases the production cost, but also places an additional burden on the environment. At the same time, this heating also affects the service life of the rectification apparatus, since local overheating can lead to damage and corrosion of the equipment parts. Along with the continuous increase of the demand of the market for the furfural and the increasing of the demand for the quality of products, the development of a rectifying device for the production of the furfural, which can optimize the raw material heating mode and improve the rectifying efficiency, is urgent. The method is beneficial to reducing the production cost, improving the product quality, enhancing the market competitiveness of enterprises and promoting the sustainable development of the furfural industry. Disclosure of utility model In order to overcome the defects, the embodiment of the disclosure provides a rectifying device for furfural production, which solves the technical problems that a large amount of heat energy is required to be consumed and the heating efficiency is low in order to enable all raw materials to reach the evaporation temperature in the prior art. According to one aspect, at least one embodiment of the present disclosure provides a rectifying device for producing furfural, which is characterized by comprising: the heat exchange purification device is arranged at the top of the shell; a preheating assembly disposed inside the housing; The inner pipeline is arranged inside the shell, and the exhaust assembly is arranged on the inner pipeline and the shell; The stirring heating assembly is arranged inside the shell; The preheating component comprises an inner cover, the inner cover is fixed at one end of the top of the shell, a plurality of first heating pipes are installed inside the outer wall of the shell, an access pipe is arranged on one side of the shell and communicated with the inside of the inner cover, and dispersing holes are formed in the bottom of the inner cover. As a further technical scheme, the stirring heating assembly comprises a central shaft, the central shaft is rotationally connected inside the shell, a driving motor is arranged on one side of the shell, and the output end of the driving motor is connected with the central shaft. As a further technical scheme, both ends of the central shaft are provided with helical blades, the inner wall of the shell is provided with a plurality of fixing rods, rectification filler is fixedly connected between the fixing rods, the rectification filler is rotationally sleeved outside the central shaft, and a plurality of groups of second heating pipes are fixedly connected inside the shell. As a further technical scheme, exhaust assembly includes a plurality of air inlet, the air inlet is evenly offered inner tube side terminal surface, inner tube one end is loc