Introduction to the performance and advantages of the barrel-cone reaction, filtration and drying all-in-one machine
In the production process of raw materials, the common production process is: reaction → crystallization → filtration → washing → filtration → drying. In the old process production equipment, each unit operation has corresponding unit equipment. The equipment is highly dispersed, and often requires manual operation, which is labor-intensive. During the material transfer process, the exposure time is long and human pollution is serious. Aiming at these problems, Wuxi ZhangHua Machinery has successfully developed a barrel-cone reaction, filtration and drying integrated machine on the basis of introducing and assimilating foreign advanced technology.
The domestic reaction, filtration and drying integrated machine is in the developing stage, and there are inevitably many shortcomings. Most of the equipment cannot realize the extrusion of the filter cake during the filtration process, and it is prone to cracking and open circuit of the filter cake, which affects the normal operation of the filtration; too much reliance on the stirring paddle, excessive pursuit of improving the equipment from the improvement of the structure of the stirring paddle The overall performance increases the cost of the equipment but the effect is not obvious; relying solely on the heat transfer of the jacket, the heat transfer area is small, the drying effect is poor, and the efficiency is very low; limited by the structure, the discharge is not complete and the product yield is low. The barrel-cone reaction, filtration and drying all-in-one machine developed and produced by Wuxi ZhangHua has proposed an effective solution to the above problems in terms of structure and process.
Working principle of barrel-cone reaction, filtration and drying all-in-one machine
The barrel-cone reaction, filtration and drying all-in-one machine developed and produced by Wuxi ZhangHua is in the same closed space, and the temperature of the jacket is controlled to carry out the pressurization or vacuum reaction of the material. After the reaction is over, after the material is heated and concentrated in vacuum, the temperature is lowered to crystallize and the reaction product is precipitated; the stirring spindle is started to make the lower cone filter plate pressurize or vacuum the crystallized solid-liquid mixture, and use the pressure difference at both ends of the filter cake and the stirring screw to Squeeze with squeeze for solid-liquid separation; add washing water to further remove the reaction liquid in the filter cake and remove impurities, and dry solid phase can be obtained after the solid-liquid separation process; start the internal heating ribbon to The material is heated and vacuum dried to finally obtain a product with a certain dryness.
Equipment structure of barrel-cone reaction, filtration and drying all-in-one machine
The barrel-cone reaction, filtration and drying integrated machine developed and produced by Wuxi ZhangHua is a barrel-cone structure. There are heating jackets on the cylinder and the lower cone to heat or cool the materials. There is a hollow inside the multi-function machine. The shaft and the variable-angle variable-lead hollow screw stirring device stir to stir and lift the material, and push out the material when discharging.
A conical filtering device with a relatively complex structure is installed in the lower cone, and a specially designed non-dead angle quick-opening discharge device or a non-dead angle pneumatic discharge ball valve is installed at the bottom of the equipment.
The performance and advantages of the barrel-cone reaction, filtration and drying all-in-one machine developed and produced by Wuxi ZhangHua
From the actual operation and use of the barrel-cone multi-function machine to process various materials, it can be found that the barrel-cone continuous filter dryer has many advantages, the main performances are as follows:
①Multiple functions in one machine, which can complete various operations such as reaction, extraction, filtration, repeated filtration, washing, and drying in one machine, and the finished product can be obtained directly.
②The operation is flexible, and the operation cycle can be adjusted by adjusting the filter pressure difference, rotation speed, screw extrusion lead, etc., so as to adapt to the change of process conditions.
③This machine can form a very thin filter cake on the surface of the filter medium or filter under the condition of no filter cake. The filtration rate per unit filtration area is very high, so the equipment is small and compact.
④Fully closed system, the operating environment is quite good, especially suitable for dealing with toxic, flammable, explosive dangerous products and delicious food biological products and pharmaceuticals that are not allowed to be polluted.
⑤ It can be concentrated and filtered.
Especially when it is necessary to wash the material, the material can be concentrated first, washed thoroughly in the suspension state, and finally press-filtered, which can reduce the handling of the material, reduce waste, and do not need to be repulped during washing. The product quality is very high.
⑥ It can be used for three operations of reaction, filtration, and drying, so that the functions of the three unit equipment can be completed on this one equipment, so that the equipment cost, floor area, labor intensity, energy consumption, etc. are greatly reduced.
⑦The power consumption of this machine is low, and the extruded filter cake generally has lower water content than the flat three-in-one, and the operation is also convenient.
The barrel-cone reaction, filtration and drying integrated machine developed and produced by Wuxi ZhangHua can complete multiple unit operations such as reaction, crystallization, filtration, washing, drying and unloading in one device. Since each process of the production process is carried out in a closed environment, it can improve the production environment, improve product quality, and realize the integration of equipment and automation of production, especially suitable for the production of raw materials and fine chemicals.