chiller for sand mill and grinder

Product Introduction
When a sand mill is working, the internal grinding temperature generally should not exceed 65 degrees Celsius. If it exceeds the protection temperature of the sand mill, the temperature switch will act, and the sand mill will automatically stop for protection, thus affecting the production efficiency. Conversely, if the internal grinding temperature is too low, the viscosity of the grinding slurry will be too high, and the driving motor will not be able to drive it, and it may even cause the grinding motor to burn out. This shows the necessity of matching a cooling system for the sand mill.
The functions of the Chuanben sand mill cooling system during the sand grinding process are as follows:
1. Effectively control the dehydration of the slurry. Most of the energy consumed during grinding is converted into heat, raising the temperature of the air and materials. For a ball mill, if the internal temperature of the grinding chamber is too high, it will cause the slurry to dehydrate, which will have an adverse effect on the setting time and strength of the slurry. The Chuanben sand mill cooling system can prevent this from happening.
2. During the sand grinding process, an air film is formed on the surface of the slurry due to the adsorption of some air, which hinders the electrostatic interaction between particles and avoids the adsorption and coagulation on the particle surface. However, when the temperature exceeds 100°C, the air film adsorbed on the particle surface is destroyed. Under the electrostatic effect, adsorption and agglomeration occur between particles and between particles and the liner of the grinding media, which has a buffering effect on grinding and reduces the grinding efficiency. This effect increases with the increase in the specific surface area of the product and the increase in the temperature inside the mill. Therefore, water cooling can improve the grinding efficiency.
3. When grinding cement, the temperature of the material entering the mill is generally higher than that when grinding raw materials, and the product fineness is also finer. Therefore, the temperature inside the mill is relatively high. If it is not cooled, the temperature of the cylinder is too high. On the one hand, the gap between the liners will become smaller due to thermal expansion. In severe cases, the liners will squeeze together and bulge, breaking the screws of the liners. On the other hand, the temperature of the cylinder will also be conducted to the hollow shaft, causing the temperature of the hollow shaft to be too high and leading to equipment accidents. Therefore, water cooling will improve the safe operation of the equipment.
Product Features
1. The main machine uses compressors imported from European, American, and Japanese brands as the core power, featuring reliable operation, *** , and low noise;
2. Adopts the technology of multiple compressors in parallel, with better performance. That is, each compressor has an independent refrigeration circuit, and the evaporators are completely independent;
3. Adopts a Bomp microcomputer controller, with high precision, *** use, adjustable temperature, and realizes fully automatic intelligent control. All compressors are commanded by a unified microcomputer control system, starting and shutting down one by one, and will never interfere with each other;
4. Equipped with various safety protection devices, *** , low noise, long service life, and simple operation;
5. The whole machine has a box-type shell structure, with beautiful appearance and compact structure, and the operation status of the unit can be checked at any time; the unit can come with a water tank according to the cooling capacityand circulating water pump;
6. Safety protection and indication functions are complete. The unit runs. Protection level: IP54
7. The water system of the unit can withstand a pressure of 0.9 - 1.0 Mpa, and the fluorine system can withstand a pressure of 3.5 - 4.0 Mpa, with high-intensity pressure testing.
8. With MODBUS485 protocol, it can achieve remote monitoring (optional) through networking.
9. Full Chinese man-machine operation interface, dynamic observation, real-time adjustment, beautiful and grand.
10. After being debugged by the automatic constant temperature test bench, it leaves the factory. The performance of the unit reaches the optimal state. The unit can run continuously for 24 hours a day.
Safety protection performance
1. Compressor overload protection: When the load is too large and the temperature is too high, the machine stops running to avoid damage to the compressor;
2. Compressor delayed start protection;
3. Reverse phase and phase loss protection: When the power supply is in reverse phase or has a phase loss, the machine stops running to avoid burning out the compressor or water pump;
4. High and low pressure and high pressure over-temperature protection;
5. Oil pressure switch protection;
6. Anti-icing protection;
7. Water flow switch protection;
8. Short circuit protection;
9. Abnormal alarm: When the machine malfunctions, the fault indicator light turns on, making the cause of the fault clear at a glance;
After-sales service
1. The whole machine is guaranteed for one year (due to quality problems of the machine itself)
2. After receiving the customer's call and the "Equipment Failure Notice", through remote maintenance. If it cannot be maintained, arrive at the site within 24
3. hours within Guangdong Province and arrive at the site within 48 hours outside Guangdong Province.
After the warranty period expires, provide spare parts and materials related to the long-term and stable operation of this equipment under normal use at a preferential price. Provide 24-hour all-weather service.