In the modern production of hazardous chemicals, all-in-one filter, washing and drying machines are widely used. The all-in-one filter, washing and drying machine can realize the closed continuous operation of the whole process, which greatly improves the safety of hazardous chemical production. However, there are many points worthy of attention in the actual operation and application process. The application of the filter, washing and drying integrated machine in the production of hazardous chemicals is mainly discussed.
Precautions for the integrated filter washing and drying machine in the production of hazardous chemicals Due to the high risk of hazardous chemical production, it is necessary to pay attention to some of the risk factors in the process of using the integrated filter washing and drying machine for processing and production To be controlled, in order to better ensure the safety of production.
1. Precautions in the filtration process Filtration is a very critical step in the work of the filter, washing and drying integrated machine. It mainly passes the solid-liquid mixture obtained from the upstream processing reaction through the filtering, washing and drying integrated machine, and uses the pressure difference method to treat the solid-liquid mixture. Separate by filtration. In practical applications, there are mainly three forms of pressure filtration, vacuum suction filtration and pressure vacuum hybrid filtration. The selection of specific methods also needs to be selected in combination with the characteristics of the processed products.
Among them, pressure filtration is a widely used method. During the working process, it mainly adds compressed air, nitrogen or other inert gases to the filter, washing and drying machine, but the selection of specific gases still needs to be based on hazardous chemical conditions. Product production characteristics, so as not to affect the stability of hazardous chemicals. For example: when there are some flammable and explosive chemical substances in the processed raw materials, when choosing compressed gas at this time, air cannot be used, but inert gas should be used
2. Precautions in the washing process After the filtration process is completed, the obtained raw materials need to be washed. This process is completed in the filter, washing and drying machine, and the whole is in a sealed state. There are more spray devices inside the all-in-one filter, washing and drying machine to spray the washing liquid, so that the washing liquid can be evenly distributed inside the equipment and improve the washing efficiency.
After the washing function is turned on, the inside of the equipment mainly performs rotational movement and vertical axial movement, and the added raw materials can be fully washed during this process. In this process, it is worth noting that attention should be paid to the selection of washing liquid, and the chemical properties of the washing raw materials need to be considered comprehensively, especially when washing substances with poor stability, more attention should be paid to the selection of washing liquid to avoid Something unexpected happened during cleaning.
3. Precautions in the drying process Drying is the next processing process after washing. The current all-in-one filtering, washing and drying machines usually use vacuum drying and hot air drying, and more are used in the production and processing of hazardous chemicals. The way of vacuum drying is more guaranteed in terms of safety.
Usually, a lot of dust will be generated during the drying process. If the processed chemical raw materials are easily oxidized or not stable enough, explosions may occur during this stage. Therefore, it is necessary to effectively control the internal environment in the drying process. At the same time, it is also necessary to pay attention to the accuracy of the operation. For example, during the drying process, the speed used should be as slow as possible, and the paddles cannot be started in the material, so as not to damage the motor and affect the sealing performance of the equipment. , resulting in the leakage of hazardous chemicals.
Discussion on the advantages and disadvantages of the all-in-one filter, washing and drying machine The advantages and disadvantages of the application of the all-in-one filter, washing and drying machine in the production of hazardous chemicals are very obvious.
1. Application advantages of filter washing and drying integrated machine In the past production and processing process, filtration, washing and drying are all processed by independent equipment, such as centrifuges, dryers, washing tanks, etc. The sealing performance of this processing technology is relatively Poor, in the production and processing of some hazardous chemicals, it is more likely to leak or explode, the safety performance is lower, and the production efficiency displayed is also lower . In the all-in-one filter, washing and drying machine, the three processes of filtration, washing and drying are integrated into the same equipment, which not only reduces the number of equipment, but also greatly improves the production efficiency, allowing filtration, washing, The three drying processes are all completed in a sealed state. Applying it to the production of hazardous chemicals can greatly improve the safety of processing and production.
2. Disadvantages of the integrated filter, washing and drying machine The structure of the integrated filtering, washing and drying machine still has imperfections. There will be a certain gap between the filter device and the stirring paddle of the equipment, which will cause the filter medium There will be some residual powder remaining in it. Although great improvements have been made in technology, the problems of remaining fans have not been completely resolved
Wuxi ZhangHua Machinery developed and produced the integrated filter, washing and drying machine, the invention patent number: ZL201721560677.6. It has achieved a major breakthrough in chemical equipment technology, broken the foreign monopoly, and greatly reduced the price of the integrated filtering, washing and drying machine. ZhangHua Machinery looks forward to creating value for more customer brands, welcome to customize your exclusive filter washing and drying machine