Liquid ring vacuum pump for Hard Sugar

White sugar, grain by grain. White sugar in our lives is made in this way: in essence, sugar is not a grain by grain, it is crystallized. The liquid ring vacuum pump sucks the air out of the tank containing sugar, leaving the sugar in a dry state. Make sugar dry and crystallize.

In sugar industry, evaporative crystallization process must be adopted to produce sugar. In the whole process of sugar production, vacuum filtration, vacuum crystallization, vacuum compression, vacuum transmission of gas and vacuum packaging are used. After more than ten years of application, liquid ring vacuum pump is the most suitable technology for sugar production.

In the past, the piston vacuum pump was used in sugar mills because of its disadvantages such as high fuel consumption, large vibration and easy to be damaged. Later, the negative pressure produced by the water jet pump was used to replace the piston vacuum pump in sugar mills. It has low efficiency and high power consumption. At the same time, it consumes a lot of water, which pollutes the environment and needs to pay a huge cost of pollution control. By investigating the use characteristics of each link in sugar industry, a new generation of vacuum system for boiling and evaporating sugar has been designed and manufactured according to the characteristics of large suction volume, high crystallization and high vacuum required for boiling sugar in sugar factories. The system mainly includes water ring vacuum pump, condenser and other equipment. 2BV water ring vacuum pump is mainly used in sugar industry in four aspects: boiling sugar, evaporation, suction filter, vacuum water diversion.

The use of hydraulic jet condenser in sugar mills is limited by water temperature. When the water temperature is 45 C, the vacuum will not exceed -0.08MPa. Most sugar factories use circulating water. When the weather temperature is high, the temperature of circulating water will be higher (some sugar factories are as high as 55 C). The vacuum of sugar boiling tank is only -0.07 MPa, which is not conducive to extracting juice. The boiling process is difficult, and the boiling time is prolonged. This results in the top cage of materials, especially low-grade materials, which seriously restricts the completion of daily crushing quota. 。 The problem of boiling sugar and evaporating vacuum can be well solved by using NADE vacuum system for boiling sugar and evaporating sugar. For example, when a sugar factory used a hydraulic jet condenser, the boiling time of boiling a can of methyl sugar was 4 to 4.5 hours, and that of boiling a can of triose was more than 6 hours. The vacuum system of boiling sugar evaporated by NADE was reduced, and that of boiling methyl sugar was 1.5 to 2.5 hours, and that of boiling triose was 4 to 4.5 hours.

The application of 2BV liquid ring vacuum pump in sugar mill has the following advantages:

Compared with the hydraulic jet condenser, the NADE vacuum system for sugar boiling and evaporation can greatly reduce water and sewage charges and save costs. Its water consumption is only one fifth of that of the water jet condenser, which greatly saves the water consumption along the river. Especially for sugar mills which lack water resources or have high environmental protection requirements, it is a cost-effective investment to use NADE to boil sugar and evaporate vacuum system. At the same time, it reduces environmental pollution and benefits future generations. Compared with the reciprocating vacuum pump, the 2BV liquid ring vacuum pump equipped with the system has the advantages of simple structure, no need to replace parts, no need to add lubricant in the operation process, large pumping capacity, faster vacuum recovery (only a few minutes), energy saving effect up to 30%, no internal wear and tear in the operation of the equipment, no need to repair, and can be realized. Long-term trouble-free operation, easy installation, extremely simple operation.


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