vacuum dryer

Abstract

The invention relates to a vacuum dryer. It includes a motor and a cylinder driven by the motor. A vacuum head fixedly connected to the cylinder is arranged inside the cylinder. A vacuum filter head is arranged on the vacuum head, and a vacuum tube protruding from the cylinder is fixed on the vacuum head. The vacuum head of the present invention is fixed on the cylinder body and a plurality of vacuum filter heads are arranged on it. When working, the motor drives the cylinder body to rotate through the transmission device, the vacuum head rotates with the cylinder body, and the air in the cylinder body passes through the vacuum head and The vacuum tube fixedly connected to the vacuum head realizes vacuuming; since the vacuum tube is fixedly connected to the vacuum head and rotates synchronously with the cylinder, it is fixedly connected to the related sealing parts and connecting parts, so it is connected to the related connecting parts, There will be no abrasion between the seals, so there is no air leakage, material pollution and other problems in this structure, which can effectively improve the drying effect and drying quality of materials.

Description

technical field [0001] The invention relates to a vacuum dryer, which is specifically used for drying materials that cannot withstand high temperatures, materials that are easy to vaporize, materials that cannot be damaged by crystallization, strong stimulation, toxic materials, and materials with residual volatiles. technical background [0002] For the drying of materials whose drying temperature cannot be too high, in order to reduce the drying temperature, it is necessary to place the materials in a dryer with a certain degree of vacuum, and reduce the drying temperature by reducing the pressure to achieve effective drying of the materials; the existing vacuum The vacuum mechanism of the dryer includes a vacuum tube extending into the cylinder, and a vacuum filter head is arranged on the vacuum tube. The vacuum tube and the vacuum filter head are fixed during operation, and the cylinder rotates, so that the materials raised during rotation will not block the filter head. ...

AI Technical Summary

Problems solved by technology

[0002] For the drying of materials whose drying temperature cannot be too high, in order to reduce the drying temperature, it is necessary to place the materials in a dryer with a certain degree of vacuum, and reduce the drying temperature by reducing the pressure to achieve effective drying of the materials; the existing vacuum The vacuum mechanism of the dryer includes a vacuum tube extending into the cylinder, and a vacuum filter head is arranged on the vacuum tube. The vacuum tube and the vacuum filter head are fixed during operation, and the cylinder rotates, so that the materials raised during rotation will not block the filter head. (Usually the filling factor is 50~60%) to achieve vacuuming; but during the rotation of the vacuum tube, the sealing performance of the connection with the cylinder is easily damaged, resulting in air leakage, affecting the vacuum degree in the cylinder, and affecting the drying of materials At the same time, due to the wear of the vacuum tube during the rotation process and the seal, some abrasive powder or some tiny particles in the air enter the cylinder, thereby polluting the materials in the cylinder and causing some materials such as fine chemicals, Pollution of medicines and food can cause unusable problems, resulting in a great waste of materials

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