Novel filtering, washing and drying integrated device and process

Abstract

The invention belongs to the technical field of process equipment, in particular to a novel filtering, washing and drying integrated device and a process. The novel filtering, washing and drying integrated device comprises a roller, a rotary shaft, a gas-liquid distribution system and a process control system, wherein the roller is coaxially and fixedly connected with the rotary shaft; and the roller and the gas-liquid distribution system are connected through a rotating joint. According to the novel filtering, washing and drying integrated device provided by the invention, the processes of filtering, washing and drying are completely carried out in one device, and thus, the production efficiency is high, dead angles are avoided, uniform quality of products is realized, material breakage ratios are low, the device conforms to the GMP (Good Manufacturing Practices) sanitary standard, and the automation level is high.

Description

technical field [0001] The invention belongs to the technical field of process equipment, and in particular relates to a novel filtering, washing and drying integrated device and process. Background technique [0002] Traditionally, the three processes of filtration, washing and drying are completed independently in unit equipment such as centrifuge (or filter), washing kettle (trough), dryer (or oven), and the integrated filtering, washing and drying machine (commonly known as "three "In one", hereinafter referred to as "three in one") has the ability to complete from feeding to product discharge in one equipment, reducing the number of equipment and space occupation, reducing labor intensity, reducing material pollution by people and the environment during the process, etc. Therefore, it has been widely used in chemical industry, medicine, light industry, biology, traditional Chinese medicine, food, agricultural product processing and other fields in recent years. [0003...

AI Technical Summary

Problems solved by technology

There must be a layer of material in the gap, which brings five problems: one is to form a dead zone during the washing process, which affects the washing efficiency; the other is to affect the heat exchange efficiency between the material and the wall and reduce the drying efficiency; The radial temperature is not uniform, resulting in uneven product quality (the temperature near the wall is the highest, and the center temperature is the lowest); the fourth is that there are residual materials during unloading, and the discharge is incomplete, which affects the yield or causes mixed batch pollution; fifth, in the Under the mechanical force of stirring, cutting, shearing or extrusion, it is easy to cause the material to break, pulverize or change the crystal form

[0006] (2) The drying process is heated by the heat medium in the equipment jacket, which belongs to heat conduction heating. Compared with the convection drying process, the drying efficiency is significantly reduced

[0007] (3) The existing "three-in-one" is equipped with a solid particle trap at the gas outlet to intercept the solid powder entrained by the air flow, but because the filter area is small, the exhaust trap is often blocked, even if the exhaust filter The outlet is equipped with a back-blowing system, and the blown-off material has not waited to fall to the main material layer, but is quickly brought to the trap by the rising airflow, causing repeated clogging of the filter, and the more serious it is in the later stage of drying

[0008] In short, because the existing "three-in-one" filtration process is static filtration, there is a dead zone in the washing process, and the drying process relies on heat conduction heating and stirring to crush the material, resulting in low production efficiency, uneven product quality, and easy blockage of the filter screen. Problems such as destroying the crystal form of materials and low degree of automation, therefore, limit the promotion and application of "three-in-one" in certain fields and certain products

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