Light calcium carbonate introduction
Today, with rapid developing of economy, the demand for calcium powder is increasing, but in the calcium powder production system, large particle materials or impurities appear, which affects the quality of the product. This screening problem has become Manufacturers and engineers are the most headaches, they are looking for the best screening equipment.
However, in the past, most of the screening equipment used by manufacturers producing light calcium was mainly scraper screens, air sorters and cyclone mills. These equipments have some drawbacks.
Analysis of Advantages and Disadvantages of Lightweight Calcium Carbonate Traditional Screening Equipment
Advantages: the output is relatively large;
Disadvantages: there is dust flying, polluting the environment and the screen is easy to break, the fineness is not guaranteed; at the same time, the dust flying in the production process causes a certain degree of damage to the health of the production workers. Maintenance, serial connection with the host, compact structure.
Advantages: It can ensure the fineness of materials;
Disadvantages: large investment, large power consumption; at the same time, the grinding chamber is easy to bond and difficult to clean, no screen operation, excessive impurities in the sieve.
Advantages: no screen loss, the output is relatively large;
Disadvantages: large power consumption, large volume, high equipment cost;
At the same time, it is not easy to break up the agglomerated particles, the fineness of the finished product is not guaranteed, and the fiber material is easily mixed into the finished powder, resulting in no guarantee of product quality.
Working principle of Gaofu light calcium carbonate screening system
In view of the shortcomings of the above three kinds of equipment, our company's scientific and technical personnel developed and produced a light calcium special airflow screening system based on the original airflow screen technology, and successively obtained eight invention patents, which solved the light calcium sieve in one fell swoop. The multiple problems in the sub-process have made outstanding contributions to the calcium powder industry.
Working principle of Gaofu light calcium screening system
The dried light calcium powder is quantitatively sent to the coarse screening inlet through a screw conveyor, and the large particles and foreign matter are first removed. Then enter the airflow screen host, accelerate by the rotating impeller and spray to the screen according to the set guiding angle, the calcium powder particles with the smaller diameter than the mesh aperture, and the airflow passing through the screen and falling over the bottom plate of the lower part of the host, thereby The guide churn at the location leads to the entrance of the draft duct.
At this point, the finished calcium powder enters the cyclone with the airflow, and the calcium powder falls into the silo and is discharged into the packaging bag by the packaging machine. The gas with a small amount of calcium powder is sent into the bag filter by the induced draft fan, and the gas is discharged. A small amount of calcium powder is sucked into the cyclone through the pipeline under the dust collector and circulated into the packaging machine. The efficiency of the cyclone is close to 100%. The impurities are discharged from the outside of the machine by the slag outlet on the side of the main unit.
Advantages and flow chart of Gaofu light calcium carbonate screening system
The screening area is 5 square meters and the output is 5 tons/hour.
Low energy consumption
It can save 10 kWh per hour, save 200 yuan in electricity a day, and save 6,000 yuan in electricity every month.
Environmentally and non-pollution
Ensure that the environmental dust is below 9 mg/m3 and meet the national standard.
It meets work work standards, energy conservation standards, environmental protection standards, safety standards, and easy operation standards.
Schematic diagram of light calcium carbonate screening system Light calcium Carbonate screening system
Introduction of core equipment for Gaofu light calcium carbonate screening system
The core equipment of the Gaofu light calcium carbonate screening system mainly consists of a coarse sieve, a main engine, a cyclone collector and a pulse dust collector. This ensures that the screening system has the functions of crushing, dispersing, screening, etc., and also ensures the fineness, whiteness and purity of the material, so that the whole production line has no dust flying to meet the energy saving and environmental protection effect.
|Using horizontal airflow sieve instead of roller sieve, it is 3 times of the output of ordinary roller-passing screen, high screening efficiency, good atomization effect, automatic slag discharge, bearing isolation, no dust, less maintenance, and host Series and compact.||It adopts the fan-gear form and has a power of 18.5 kW. It effectively utilizes the host's conveying capacity to ensure that the finished product in the mainframe can reach the cyclone collector quickly. The area of the impeller screen is increased to 5 square meters, and the output at the time of the platform is up to 10 tons/hour.|
|The closed cage is used to prevent the material from flowing backwards. The eyepiece is installed to observe the material. The large-capacity cyclone collecting box can be used to collect the material at 99% at one time. The down-rotating XL55-600 with the whirlwind cap is designed to reduce the wind pressure loss.||The cyclone type pulse dust collector is used to pre-treat the dust-containing gas, reduce the pressure of the filter bag, and improve the conveying capacity. The number of filter bags is 40.|
Light calcium carbonate application industry
|Calcium carbonate is one of the earliest and largest bulk fillers used in the rubber industry. Calcium carbonate is filled in rubber in large quantities, which can increase the volume of the product, thereby saving expensive natural rubber and reducing costs. Calcium carbonate can be obtained by filling rubber. It has higher tensile strength, tear strength, and stronger reinforcing effect in natural rubber and synthetic rubber than pure rubber sulfide, and can adjust the consistency.||Calcium carbonate can play a skeleton role in plastic products, it has a great effect on the dimensional stability of plastic products, it can improve the hardness of the products, and it also can improve the surface gloss and surface flatness of the products. The addition of calcium carbonate to general plastic products can improve the heat resistance. Since the whiteness of calcium carbonate is above 90%, it can also replace the expensive white pigment to achieve a certain whitening effect.|
|Calcium carbonate is a large amount in the paint industry, and it is an indispensable skeleton. The amount of the calcium carbonate is more than 30% in the thick paint, and the phenolic enamel paint is more than 39% of the phenolic fine pattern wrinkle paint.||The application is more widely used in the waterborne coating industry, and the coating can be made without sedimentation, easy to disperse, and has good gloss. The amount of the waterborne coating is 20-60%.|
In addition, calcium carbonate plays an important role in the paper industry to ensure the strength, whiteness and low cost of paper. It can play a certain role in the cable industry. It can also act as a friction agent for toothpaste.
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