Polymer Dosing System
Polymers preparation and dosing system, is an automatic continuous process, dedicated for the preparation of chemicals used in the water and wastewater treatment. It dissolve dry chemical/polymer powder or can be customized to dilute concentrated solutions.
Feature:
Polymer Dosing System,Chemical dosing system,Powder dosing system,Chlorine Dosing System ,PAM Polymer Preparation unit YIXING HOLLY TECHNOLOGY CO.,LTD. , https://www.watertreatment-machine.com
With this drying method, chemical unit operations such as concentration or filtration can be omitted, and a 30-50-up granular product can be obtained with a very short drying time. The drying time is generally 5-30s. The spray dryer is suitable for the drying of highly decomposable materials in the process of concentration of high-temperature heat-sensitive materials and liquids. The product has good fluidity and fast dissolvability.
The gas-solid two-phase contact surface area in the spray dryer is large, but the gas-solid two-phase dialysis ladder flow, so the volumetric heat transfer coefficient is small, generally 23-116, the hot air temperature is 250-500 degrees Celsius in the cocurrent operation, and the countercurrent operation It is 200-300 degrees Celsius. Industrial-scale spray dryers typically have a thermal efficiency of 40%-50%. With foreign spray dryers with waste heat recovery, the thermal efficiency can reach 70%. This type of spray dryer is only economical when the production capacity is greater than 100kg (water)/h.
The spray-dried products are fine particles. In order to meet the requirements of environmental protection laws and regulations, the spray dryer system uses only cyclone dust collectors to separate products and purify the exhaust gas is not enough. Generally, it is also necessary to use a bag filter to purify the dust in the exhaust gas. Less than 50 gases (standard state), or with a wet scrubber, can reduce the dust content of the exhaust gas. The company's LPG high-speed centrifugal spray dryer has maintained its best-selling position in the chemical industry since the first half of the year. Currently, it is equipped with higher technology. The more refined ZLPG-type Chinese medicine extract spray dryer and TPG-type intelligent seasoning spray-dryer are increasingly showing advantages in the market, and are purchased for the majority of pharmaceutical companies and food factories.
The technical equipment of ceramic raw material processing has not been a big breakthrough for many years. In the production process of the powder, the spray dryer realizes an unattended monitoring system. The key data of the inlet and outlet air temperature, air volume, mud pressure, and moisture in the spray dryer can be processed through the processing software to analyze the system in real time. Factors that can simulate the manual operation to adjust the temperature of the hot blast stove, the flow of the slurry, etc., and eventually replace human operations. In the aspect of improving the utilization and quality of the powder, a spray tower powder cooler capable of rapidly cooling the powder temperature and controlling the humidity of the powder was introduced.
Spraying dryers in China's ceramics machinery companies have taken a leap forward in the use of fuels in the past two years. From the original oil-burning to the use of coal-water slurry as a clean energy, not only fuel costs have been saved, but also a reduction. Pollution of the atmosphere. Spray dryer is one of the main process equipments of ceramic enterprises. The energy consumption of this link accounts for a large proportion of the total energy consumption of the production line. The cost of using coal water slurry can reduce the cost by 20% compared with oil burning, so the water coal slurry The promotion is very fast, and in just over a year, its usage far exceeds the value of the power industry, and it has become the dominant industry for the replacement of coal water slurry.
1, Dosing, dissolving and feeding function are integrated, full automatic operation. Well designed dosing and heating device can reduce polymer caking;
2, Polymer and water inletting are adjustable, All concentration of the liquid can be reached according to your needs. The machine will remind to add polymer when the polymer reaches low level;
3, Optional: Vacuum feeding machine, Online dilution system; Tank material: SS304 or SS316L, Polypropylene, FRP, etc.
Application of Spray Dryer in Processing Ceramic Raw Materials
Spray Dryer Spray dryers are dryers that process solutions, suspensions, or slurries. The spray dryer is a method of spraying, so that the material is dispersed into the hot air mist droplets. The materials are in contact with the hot air in a co-current, counter-current, or mixed-flow manner, so that the moisture evaporates quickly to achieve the purpose of drying.