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CN-224202037-U - Vacuum vibration drying equipment

CN224202037UCN 224202037 UCN224202037 UCN 224202037UCN-224202037-U

Abstract

The utility model relates to the technical field of vacuum drying, and discloses vacuum vibration drying equipment, which comprises a drying tank and a heating component arranged in the drying tank, wherein the heating component comprises a plurality of heating pipes which are arranged at intervals along a first direction, each heating pipe is arranged to be bent in a plurality of times along a second direction perpendicular to the first direction, a medium flows in the heating pipe, the medium can transfer heat to the drying tank through the heating pipe, and two ends of the heating pipe respectively penetrate out of the drying tank and are used for being connected with an external heating circulation mechanism. Therefore, the plurality of heating pipes in the drying tank can divide the inner part of the drying tank into a plurality of heating areas, thereby shortening the distance of heat transfer required by each heating pipe. Therefore, compared with the in-situ heating mode of the external heating sleeve in the prior art, the utility model reduces the time for transferring heat to the position far away from the heating source in the drying tank, thereby improving the drying efficiency of the equipment.

Inventors

  • ZHANG LIGUO
  • YIN ZHE
  • SHEN GANG
  • SHAN WEIFENG
  • TIAN JIAXIN
  • WU XIAOHONG

Assignees

  • 中国石油化工股份有限公司
  • 中国石化催化剂有限公司
  • 中石化催化剂（北京）有限公司

Dates

Publication Date
20260505
Application Date
20250305

Claims (10)

  1. 1. Vacuum vibration drying apparatus, characterized by comprising a drying tank (1) and a heating assembly (2) arranged in the drying tank (1), the heating assembly (2) comprising a plurality of heating pipes (201) arranged at intervals along a first direction; Each heating pipe (201) is arranged to be bent in a plurality of times along a second direction perpendicular to the first direction, medium flows into the heating pipe (201), the medium can transfer heat into the drying tank (1) through the heating pipe (201), and two ends of the heating pipe (201) respectively penetrate out of the drying tank (1) and are used for being connected with an external heating circulation mechanism.
  2. 2. Vacuum vibration drying apparatus according to claim 1, characterized in that a set of heat transfer fins (202) is provided on the outer wall surface of each section of straight tube (2011) of the heating tube (201).
  3. 3. Vacuum vibration drying apparatus according to claim 2, wherein each group of the heat transfer fins (202) includes a plurality of heat transfer fins (202), and the plurality of heat transfer fins (202) are arranged at intervals along the circumferential direction corresponding to the straight pipe (2011).
  4. 4. Vacuum vibration drying apparatus according to claim 2, characterized in that the length of the bent pipe (2012) at the bottom side of the heating pipe (201) is greater than the length of the bent pipe (2012) at the top side of the heating pipe (201).
  5. 5. Vacuum vibration drying apparatus according to any one of claims 1-4, characterized in that the bottom of the drying tank (1) is provided with a drain (3), and that the drain (3) is provided with a filter assembly (4).
  6. 6. Vacuum vibration drying apparatus according to claim 5, characterized in that a stationary table (5) is provided at the drain port (3), the filter assembly (4) being detachably arranged on the stationary table (5).
  7. 7. Vacuum vibration drying apparatus according to claim 6, characterized in that the filter assembly (4) comprises a filter screen (401) and a fixing ring (402) sleeved on the outer periphery of the filter screen (401), the fixing ring (402) being detachably connected with the fixing table (5).
  8. 8. Vacuum vibration drying apparatus according to claim 7, characterized in that the fixing ring (402) is provided with a plurality of fixing holes (403), each fixing hole (403) being provided with a fixing member (6), the fixing member (6) being adapted to detachably fix the fixing ring (402) to the fixing table (5).
  9. 9. Vacuum vibration drying apparatus according to claim 6, characterized in that the fixing table (5) is detachably connected with a sealing cover (7), the sealing cover (7) is covered on one side of the filter assembly (4) away from the drying tank (1), and a drain valve (701) is arranged on the sealing cover (7).
  10. 10. Vacuum vibration drying apparatus according to claim 1, characterized in that the vacuum vibration drying apparatus further comprises an air charging and exhausting mechanism (8) for charging or exhausting air into the drying tank (1).

Description

Vacuum vibration drying equipment Technical Field The utility model relates to the technical field of vacuum drying, in particular to vacuum vibration drying equipment. Background In the production of polyolefin catalysts, the drying step is a crucial step, the main purpose of which is to remove a large amount of solvent from the catalyst in order to obtain the dry powder form of the catalyst. In view of the heat sensitive nature of polyolefin catalysts, vacuum vibration drying equipment is commonly employed in the industry to treat such catalysts to ensure their performance is not compromised. The working principle of the vacuum vibration drying equipment is that the solvent is evaporated and dried under the vacuum state. During the drying process, vibration is applied to the drying tank to drive the catalyst to be fluidized and move in the tank. However, before the vibration action is applied to the drying tank, the solvent in the tank needs to be reduced to a certain value, so that the phenomenon that the catalyst cannot be fluidized due to excessive solvent content of the catalyst is avoided. At present, an external heating mode is generally adopted for a drying tank for bearing a solvent in vacuum vibration drying equipment. Specifically, a heating sleeve is arranged on the outer wall surface of the drying tank body, and a medium with a certain temperature is introduced into the heating sleeve, so that the catalyst in the drying tank body is heated. However, this heating method has problems in that a long period of time is required to transfer heat from the inner wall surface position of the drying tank to the central region inside the tank due to low heat transfer efficiency between the solvent in the tank and the dried catalyst particles, resulting in an increase in drying time of the apparatus and thus an influence on production efficiency. Disclosure of utility model The present utility model aims to overcome the above technical problems of the prior art. In order to achieve the above object, the present utility model provides a vacuum vibration drying apparatus including a drying tank and a heating assembly disposed within the drying tank, the heating assembly including a plurality of heating pipes spaced apart along a first direction; Each heating pipe is arranged to be bent in a plurality of times along a second direction perpendicular to the first direction, medium flows in the heating pipe, the medium can transfer heat to the drying tank through the heating pipe, and two ends of the heating pipe respectively penetrate out of the drying tank and are used for being connected with an external heating circulation mechanism. Optionally, a group of heat transfer fins are arranged on the outer wall surface of each section of straight pipe of the heating pipe. Optionally, each set of heat transfer fins comprises a plurality of heat transfer fins, and the plurality of heat transfer fins are arranged at intervals along the circumference of the corresponding straight tube. Optionally, the length of the elbow at the bottom side of the heating tube is greater than the length of the elbow at the top side of the heating tube. Optionally, a liquid outlet is arranged at the bottom of the drying tank, and a filtering component is arranged at the liquid outlet. Optionally, the liquid outlet is provided with a fixed table, and the filter assembly is detachably arranged on the fixed table. Optionally, the filter component comprises a filter screen and a fixed ring sleeved on the outer periphery of the filter screen, and the fixed ring is detachably connected with the fixed table. Optionally, a plurality of fixing holes are formed in the fixing ring, and fixing pieces are arranged in each fixing hole and used for detachably fixing the fixing ring on the fixing table. Optionally, the fixed table is detachably connected with a sealing cover, the sealing cover is covered on one side of the filter assembly far away from the drying tank, and a liquid discharge valve is arranged on the sealing cover. Optionally, the vacuum vibration drying apparatus further comprises an air charging and exhausting mechanism for charging or exhausting air into the drying tank. According to the technical scheme, the medium can directly heat the catalyst from the inside of the drying tank through the heating pipes, so that heat loss is reduced, and meanwhile, the plurality of heating pipes in the drying tank can divide the inside of the drying tank into a plurality of heating areas, so that the distance of heat transfer required by each heating pipe is shortened. Therefore, compared with the in-situ heating mode of the external heating sleeve in the prior art, the utility model reduces the time for transferring heat to the position far away from the heating source in the drying tank, thereby improving the drying efficiency of the equipment. Drawings Fig. 1 is a schematic structural view of a vacuum vibration drying apparatus; fig. 2 is an e