2017-06

Application of Domestic Polymerization Laboratory Reactor

2017-06-20

Domestic polymerization laboratory reactors have been widely used in domestic PVC production plants, playing an important role in the development of China's PVC industry. According to preliminary statistics, by 2002, the total capacity of polymerization laboratory reactors in domestic PVC laboratory reactor production devices was about 13000m3, of which the total capacity of domestic laboratory reactors was about 11500m3, accounting for 78% of the total. 30m3 polymerization laboratory reactor has once become the main laboratory reactor type for PVC production plants in China. With the continuous expansion of the production plant scale, domestic 70m3 laboratory reactor has become the first choice for newly expanded PVC plants. By the end of 2003, more than 20 70 m3 laboratory reactors had been put into use in domestic PVC production plants, and more than 70 were under manufacturing.

2017-04

Structural characteristics of automatic material feeding device for magnetic reaction kettle

2017-04-22

The automatic material feeding device of the magnetic reaction kettle is provided with a support, and the silo is fixed on the support. The upper part of the silo is provided with a feeding port, and the lower part of the silo is provided with a feeder; The feeding device further includes a temperature measuring device for measuring the temperature in the reaction kettle; The discharge control device is used to compare the temperature measured by the temperature measuring device with the set temperature of the reactor, and control the operation of the discharge device based on the comparison results. The magnetic reaction kettle automatic material feeding device can track and feed materials in real time based on the reaction temperature in the reaction kettle. The material is not easy to agglomerate, the feeding is uniform, and the measurement is accurate. It is suitable for promotion and application in processes requiring the addition of powdered materials in the chemical and pharmaceutical fields. On the outer wall of the upper end of the reaction kettle, an annular waterproof protective ring with a channel is installed. Each side of the annular waterproof protective ring is provided with a polymer concrete protective layer. The lower end of the annular waterproof protective ring channel is connected with a number of drainage pipes. The waterproof protective device for the reaction kettle can effectively prevent the contact between the liquid and the reaction kettle and the waterproof protective ring, reduce the corrosion of the liquid to the reaction kettle and the waterproof protective ring, and improve the service life of the reaction kettle and the waterproof protective ring. The overflow protection device of the magnetic reaction kettle includes a cylinder, a drain port arranged at the lower side of the cylinder, a docking conduit arranged at the center of the upper end face of the cylinder, an air outlet arranged at the upper end face of the cylinder, a columnar floating body arranged directly below the docking conduit, and an elastic gasket used to seal the lower port of the docking conduit; Wherein one end of the docking conduit is connected to the overflow port of the reaction kettle, and the other end extends into the cylinder body; The elastic washer is arranged on the upper end face of the columnar floating body. The overflow protection device can not only temporarily store the overflow, but also prevent the overflow within a certain range, feedback control the feeding device or send an alarm signal.

2017-04

Requirements and Development Trend of Magnetic Reactor in Chemical Production

2017-04-21

1. Large volume magnetic reactor is an effective way and development trend to increase production, reduce quality errors between batch production, and reduce product costs. Magnetic reaction kettles for dye production are mostly below 6000L in China, and some in other industries reach 30m ³； In foreign countries, there are 20000 to 40000 liters in the dye industry, while other industries can reach 120 meters ³。 2. The agitator of magnetic reaction kettle has developed from a single agitator to a dual agitator or an external pump for forced circulation. In foreign countries, in addition to being equipped with an agitator, the magnetic reactor body is also rotated along a horizontal line, thereby improving the reaction speed. 3. Replacing cumbersome intermittent manual operations with production automation and continuity, such as adopting program control, can not only ensure stable production, improve product quality, increase revenue, reduce physical labor, but also eliminate environmental pollution. 4. The magnetic reactor utilizes heat energy reasonably, selects the best process operating conditions, strengthens thermal insulation measures, improves heat transfer efficiency, and minimizes heat loss. The residual heat or heat generated after the reaction is fully utilized. The application of heat pipe technology will be the direction of development in the future.

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