(Involvement in activities) Factors affecting production under load in evaporation material preparation

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The last edit to this post was made by 1025199692 on 2009-8-11 at 20:26. Factors affecting production under load during evaporation and material preparation: 1. Adjustment of the crusher’s load: a. When operating the system under increased load, it is necessary to first ensure an appropriate load on the crusher, so as to maintain the proper particle size of the material crushed by it. b. The operating conditions of the crusher are closely related to the moisture and biuret content in the final urea product; therefore, it is necessary to further control the hardness of granular urea. While ensuring appropriate levels of moisture and biuret, the amount of formaldehyde added should be adjusted accordingly. c. During high-load production, it is necessary to control the liquid level and temperature in the granulation chamber promptly while cleaning the crusher, so as to ensure that the load does not exceed acceptable levels once the crusher is operating normally, and to reduce the amount of overflow from the flat screen. 2. During the loading process, attention should be paid to the quality of the finished product: a. Moisture content. During the loading process, it is necessary to ensure that the urine resulting from low-pressure decomposition is of satisfactory quality; at the same time, it is important to keep the vacuum level and temperature in the evaporator within adjustable ranges in order to control the moisture content of the final product ； In the large-particle urea recovery system, a certain height should be maintained to reduce the load on the evaporation system. Ensuring proper moisture levels allows the crusher to operate for longer periods of time, while also reducing dust generation in the granulation system; this helps maintain stable production levels and consistent operating conditions in the granulation process. b. Biuret. During high-load production, the formation of biuret is reduced due to higher moisture levels, so special attention should be paid to the hardness of the finished product. c. Particle size and recycling rate of the finished product: In high-load production, the particle size determines the quality of the output; meanwhile, whether the recycling rate is normal directly affects the stability of the granulation system’s operation as well as the amount of granules produced. It is necessary to maintain a high recycling rate in order to reduce the amount of material that overflows from the screen and the load on the crusher. 3. The impact of production under increased load on the granulator and its operating conditions: a. The granulation process in the granulator generates a large amount of dust, and the granulation cycle is relatively short. b. The control of negative pressure, bed layer, and temperature in the granulator is decisive for urea granulation.