The type of tunnel type sterilization spray dryer: Tunnel-type sterilization spray dryer is also called tunnel oven. It mainly sterilizes, dehydrates and depyrogenates antibiotic bottles. There are two types of tunnel-heat sterilization: one is hot air circulation (that is, parallel flow of hot air). Far-infrared radiation is the common point of dry heat sterilization.
Hot air circulation tunnel type sterilization spray dryer Hot air circulation tunnel type sterilization spray dryer was originally evolved from the products of Bosch and B+S.
Tunnel type sterilization spray dryer features:
(1) easy to control the temperature and hot air pressure difference; (2) uniform temperature distribution; (3) the length of the entire box is far shorter than the infrared radiation type.
But the imperfections are:
(1) Hot-air circulation type tunnel-type sterilization drying adopts high-efficiency filter which is more expensive than 350°C, and its use cost is relatively high; (2) As the hot air circulation type preheating section heats up faster, the tube of the bottle There is a certain requirement for wall uniformity.
The far-infrared radiation type tunnel-type sterilization spray dryer Far-infrared radiation-type tunnel-type sterilization dryer is, in a sense, a domestic product, and it is also derived from the evolution of Calumatic and IMA. Its characteristics: (1) When sterilized and dried, it is exposed to the dual effects of radiant heat and hot air laminar hot air, and its heat penetration is strong; (2) The cost of spare parts is relatively low. But the imperfections are: (1) It is influenced greatly by the airflow in the box and the opening and closing of the electric heating pipe, and there is a higher requirement for the air pressure control before and after the oven; (2) The length of the box is determined by the relaxation of the heating. The type of hot air circulation should be long; (3) Only the entire row of bottles can be used to push the bottle in, so that the temperature of the bottle can be basically the same, so that the heat penetration index can be basically ensured.
For a long time, the high-temperature, high-humidity environment of the Chinese herbal extract spray dryer in the injection molding workshop is a difficult problem to overcome. With the growing shortage of labor shortages, more and more factories are also trying their best to improve the working environment of workers. However, the installation of central air-conditioning in the workshop is too costly. The addition of fine dust from the hopper pressure spray granulation dryer is also not conducive to long-term work in a fully confined environment.
In recent years, due to the shortage of resources, the more restrictive the high-speed centrifugal spray dryers are used by the power plants. In particular, spray dryers are located in southern cities and industrial areas in some regions, and each satellite has a deadline of 2-3 working days. It greatly reduces work efficiency. The issue of energy conservation has also been more mentioned by business managers.
The moisture in the injection molding workshop mainly comes from the exhaust gas discharged from the hopper pressure spray dryer, and the high temperature is mainly the heating system of the hopper pressure spray granulation dryer and the injection molding machine. The hot air recovery system is installed on a hopper pressure spray granulation drying machine, and a blower air jet spray dryer of a pressure spray granulation dryer is used to re-inhale the exhaust gas discharged from the pressure dryer spray granulation dryer into a pressure spray spray. In the dryer dryer, there is no need to connect the power supply separately to recover the hot air. The hot air recovery system is equipped with a filter pressure spray granulation dryer, which can filter and recover the dust. Because the suction pressure spray drying equipment granulates the dryer with clean hot air, it can save 20-30% of the heating power of the pressure spray granulation drying equipment. In this way, the use of a hot air recovery system utilizes the recycling of exhaust gas, which saves electric energy, reduces the temperature inside the building, and also cleans the air. Reduce dust pollution in the workshop.
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