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Huanggang processing combined multi-effect evaporator price

Release time: 2020-02-08 19:26:13

The biological fermentation tank is mainly composed of a tank body, agitator, baffle, air distributor, cooling pipe (or jacket), defoamer, manhole, integrated sight glass and other main components.

Multi-effect evaporators are often used to treat high-salt wastewater produced by chemical production, food processing plants, pharmaceutical production, oil and gas collection and processing enterprises in the process of production. How to improve the efficiency of multi-effect evaporators, so as to further reduce the production cost of products and improve economic benefits, is what many manufacturers using multi-effect evaporators need to know.

The ammonium sulfate waste liquid is generally treated by evaporation and crystallization, which not only solves the problem of polluting the environment with sulfur-containing tail gas, but also recycles ammonium sulfate and increases economic benefits. In the production of ammonium sulfate solid products, in order to save energy and reduce consumption, a large amount of heat is used to reduce energy consumption and reduce operating costs. Today, MVR evaporation technology is generally used instead of multi-effect evaporation technology.

The vacuum of the three-effect evaporator is too high: (1) The temperature of the cooling water inlet of the concentration equipment is too low, and the vacuum of the equipment is too high. Although high vacuum increases the effective temperature difference between the heated steam and the boiling point of the material, it is advantageous to increase heat transfer and accelerate the rate of evaporation. However, since the latent heat of evaporation of the secondary steam increases as the degree of vacuum increases, the steam consumption increases accordingly. (2) The evaporation rate is greatly reduced due to low pressure or steam flow rate. (3) In equipment using a soft drink separator, the condensate discharge is bad due to plugging the water separator, which makes the heater water serious. In addition, if the quality of the heated steam is poor, or the insulation of the cold steam pipe is poor, and the water inside the heater is severe, it will make heat transfer difficult and make the vacuum too high. (4) The severe coking of the heater surface reduces the heat transfer coefficient of the heating surface, the evaporation rate decreases, and the vacuum degree of the pot exceeds the standard.

MVR evaporation system evaporation has decreased. Cause: The inner wall of the main heater has excessive scaling or deposits. Treatment method: Start and execute the system cleaning program, and perform on-line cleaning of the MVR evaporation system.

Scope of forced circulation evaporation crystallizer: single-effect, double-effect, multi-effect forced circulation evaporator, suitable for scaling, crystallinity, heat sensitivity (low temperature), high concentration, high viscosity and containing insoluble solids, etc. Evaporation and concentration in food, pharmaceutical, environmental protection engineering, waste liquid evaporation and recovery industries.

The forced circulation evaporation crystallizer equipment has a wide range of adaptable material characteristics. Among them, it is mainly aimed at materials that are easy to scale in the evaporation process, materials that have crystal precipitation during the evaporation process, materials that have a corresponding increase in viscosity as the concentration increases, materials that have insoluble solids, etc .;

In the multi-effect evaporation device, the steam generated by heating the first effect by the new steam does not enter the condenser, but is reused as the heating medium of the second effect. This can effectively reduce the consumption of new steam by about 50%. Reusing this principle can further reduce the consumption of new steam. The maximum heating temperature of the first effect and the minimum boiling temperature of the last effect form a total temperature difference, which is distributed among the effects. As a result, the temperature difference per effect decreases as the number of effects increases. Therefore, the heating area must be increased to achieve the specified evaporation rate. Preliminary estimates indicate that the effective heating area increases in proportion to the efficiency, so that the amount of steam saved gradually decreases while the investment cost increases significantly.

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