(Attend the event) Major Survey on Urea Granulation Nozzles
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This post was last edited by 1025199692 on 2009-9-6 at 18:32. The main manufacturers of urea granulation nozzles at present are the 11th Aerospace Research Institute in Zhejiang Wenling, Baoji, and others. Dear users, please share the actual usage situations of their urea granulation machines in a realistic manner so that we can conduct a comparison! Please fill in the following information: 1\ The daily production capacity of the urea production facility; 2\ The diameter and height of the urea granulation tower, as well as the location of the tower; 3\ The manufacturer of the urea granulation nozzles; 4\ Usage details: whether the urea particles form balls and stick together, what the proportion of first-class products is, whether there are hollow particles, and what the temperature of the urea particles is, etc.
This post was last edited by 1025199692 on 2009-9-6 at 18:32. Here’s my introduction: 1\ Our company is Aerospace Institute No. 1, a manufacturer of urea granulation nozzles. 2\ The urea production facility has a daily capacity of 1,200 tons. 3\ The diameter of the urea granulation tower is 19 meters, and its height is 90 meters; the tower is located in East China. 4\ Operational status: Urea particles sometimes clump together; the quality rate of first-class products is around 97%; there are no hollow particles, and the temperature of the urea particles ranges from 45 to 55 degrees Celsius.
1\ Daily production capacity of the urea production plant: 1740. 2\ Diameter of the urea granulation tower: 21m; height of the tower: 90m. Location of the tower: South. 3\ Manufacturer of the urea granulation nozzles: Aerospace Institute No. 11. 4\ Usage status: Whether the urea particles form balls and stick together; none. What is the percentage of first-class products? 98%. Are there any hollow balls? None. Temperature of the urea particles: 65°C in summer; 40–50°C otherwise
1\ Daily production capacity of the urea production plant: 750 tons. 2\ Location of the tower: South. 3\ Manufacturer of the urea granulation nozzles: Aerospace Institute No. 11. 4\ Usage status: Whether the urea particles form balls and stick together; none. What is the percentage of first-class products? 98%. Are there any hollow balls? None
The nozzles in model 11 are atmospheric pressure nozzles, which tend to cause overflow. I wonder what other users think about this?
This post was last edited by Fan Zhou Wu Hu on 2009-9-10 01:28. Question to expert long198600: What is a constant-pressure nozzle? Besides atmospheric pressure nozzles, what other types of nozzles are there for high tower granulation?
Features of the nozzles produced by 11: These nozzles ensure operation under pressure-free conditions. The granulator uses side feeding, and it relies entirely on the liquid level inside the nozzle to adjust to changes in load, rather than relying on the liquid level in the feed pipe as is the case with granulators using central feeding used by some manufacturers in China. It prevents fluctuations in system operating parameters and changes in production capacity from affecting the operation of the nozzles, keeping them in their designed state and ensuring the quality of granulation. Centrifugal feed granulators designed abroad generally incorporate pressure relief measures to ensure the stable operation of the granulation nozzles (for example: Chitianhua, Lutianhua, etc.). When replacing nozzles on the central feeding granulators used by some domestic manufacturers, we adopted a special pressure relief method to ensure that the nozzles could operate without pressure, achieving excellent results (3 sets in Mianyang, Sichuan; Linquan in Anhui, Yong’an in Fujian, and Meifeng 3 Urine, etc.). Nozzles produced in Wenling, Zhejiang, that do not come with an overflow device are what we call pressure-operated nozzles.