Polyacrylamide cutting and conveying device

Abstract

The invention provides a polyacrylamide cutting and conveying device which belongs to a grain manufacturing device. A discharging device is transversely connected with a discharging opening of a polymerization kettle; the outlet of the discharging device is connected with a grinding device which is internally provided with a cutting screw rod; one end of the cutting screw rod is connected with a motor, and the other end of the cutting screw rod is connected with a weighing material box; a discharging screw rod is arranged at the bottom inside the weighing material box and is vertically connected with a material conveying screw rod outside a box body; the tail end of the material conveying screw rod is connected with a granulator; and a blanking valve is arranged on a pipeline between the discharging opening of the polymerization kettle and the discharging device. According to the polyacrylamide cutting and conveying device disclosed by the invention, equipment and operation systems can realize that in an industrial production process of polyacrylamide, with the mounting cost 80% less than that of the previous process, and on the basis of automation, colloids with smaller grain sizes can uniformly enter the granulator, and the colloids which enter the granulator by virtue of the material conveying screw rod are most dispersed colloids with small grain sizes, the granulator can achieve the capacity of 1 ton to 50 tons per hour within a normal load, and further, the capacity of a single production line can reach 15,000 tons per year.

Description

technical field [0001] The invention belongs to a device for making granules, in particular to a polyacrylamide cutting and conveying device. Background technique [0002] Polyacrylamide is a linear water-soluble polymer, which is obtained by polymerizing acrylamide. Polyacrylamide is suitable for industries such as dyeing, papermaking, food, construction, metallurgy, mineral processing, coal powder, oil field, aquatic product processing and fermentation, and wastewater treatment with high organic colloid content. At the present stage, there are quite large-scale production enterprises in China, and relatively advanced production technology is used. In the reaction granulation section, four polymerizers are used for double pre-grinding in parallel to alternately feed the granulator. The fully reacted material in the reactor is a high-viscosity jelly. It is difficult to unload and transport jelly. The unloading method in foreign countries adopts the dumping form. This form...

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Problems solved by technology

At present, the cylinder pressure discharge polymerization kettle is mostly used in China. This polymerization method has the advantages of convenient operation and low equipment investment. However, due to the current technology, the polymerization kettle must be installed at a higher position, which makes equipment installation difficult. Big, high cost of installing supporting facilities

Moreover, the volume of the colloid entering the granulator in this process is large, and the discharge rate of the granulator is low. In addition, the pressure discharge of the reactor is very unstable. When a certain side of the colloid in the reactor deviates, air leakage will occur. At this time Unloading with air pressure

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