Continuous reaction production line consisting of multiple serially connected reaction kettles

Abstract

The invention discloses a continuous reaction production line consisting of multiple serially connected reaction kettles. The production line is formed by connecting multiple reaction kettles in series through material conveying pipes connected between the kettles; raw materials continuously enter the production line from the start end and then forcedly pass through all the reaction kettles in sequence; after being reacted, the raw materials are discharged from a material outlet in the tail end; height differences exist between all the reaction kettles; the materials enter the kettle from a material inlet in the lower side of the former kettle, then overflow from an overflow opening in the upper side of the kettle and flows into the material inlet in the lower side of the next kettle due to the fall action. The fall size is set according to the property of the materials in the kettles. The continuous reaction production line is reasonable in structure and high in working performance.

Description

technical field [0001] The invention relates to a continuous reaction production line. Background technique [0002] In the acid quenching or pickling production projects of non-ferrous metals, rare earth elements, high-purity silicon products, high-purity graphite, etc., it is often necessary to process tens of thousands of tons of raw materials. In the production projects of fracturing agents and other aspects, the designed annual output is more than 10,000 tons. In this regard, the traditional method is to expand the volume of the reactor (or reaction tank) and increase the number of reactors (or tanks), single operation, single control. [0003] The above traditional methods bring the following problems, which have always affected the safety and economy of equipment and production. The main issues are: [0004] 1. In pickling and acid quenching projects, it is generally required to use strong acids (HF, HCl, HNO 3 、H 2 SO 4 etc.) and high temperature conditions, so...

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Problems solved by technology

[0004] 1. In pickling and acid quenching projects, it is generally required to use strong acids (HF, HCl, HNO 3 、H 2 SO 4 etc.) and high temperature conditions, so reactors and other equipment must be lined with PTFE or precious metals for corrosion protection, and the production of related large-scale reaction equipment is more difficult, and the transportation, installation, maintenance costs and use risks are high

[0005] 2. During the production process of each reaction equipment, there are many auxiliary times for feeding and discharging materials, which reduces the actual working time of the reactor, reduces the utilization rate of the equipment, and even affects the inconsistent quality indicators of each batch of products.

[0006] 3. For the feeding and discharging of each reactor, corresponding pipelines, pumps, valves and other supporting materials must be equipped. The cost of supporting materials is high, and there are many fault points that may occur during operation, which increases the cost of operation and maintenance.

[0007] 4. There must also be a set of control and testing means for each reactor that is produced separately

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