Calcium carbide waste heat recycling and utilizing system

Abstract

The invention discloses a calcium carbide waste heat recycling and utilizing system. The calcium carbide waste heat recycling and utilizing system comprises a calcium carbide pot, a waste heat boiler,a fully-automatic intelligent conveying system, a smoke air system and a PLC control system, wherein hot air which flows through a cooling channel of the calcium carbide pot to heat up is fed into the waste heat boiler by the smoke gas system to subject to waste heat recycling; the PLC control system controls the fully-automatic intelligent conveying system to work; the system is simple in equipment structure, is high in degree of automation, recycles waste heat in a calcium carbide furnace outlet liquid and calcium carbide cooling process, and is high in waste heat recovery rate; the coolingflue is connected end to end to form a sealed cooling space, so that amount of leaked air is effectively reduced, and the waste heat recovery rate is increased; and cooling air and smoke gas are adopted as a heat exchange medium, so that a production process is safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of energy recovery and utilization, and relates to a calcium carbide waste heat recovery and utilization system. Background technique [0002] The chemical name of calcium carbide is calcium carbide, and the molecular formula is CaC 2 , the appearance is grey, brown yellow, black or brown block solid, it is the basic raw material of organic synthesis chemical industry, a series of organic compounds can be synthesized by using calcium carbide as raw material, and it can provide raw materials for industry, agriculture and medicine. [0003] The calcium carbide industry was born at the end of the 19th century, and the electrothermal process is still used in industrial production so far. Melt coke and calcium oxide in an electric furnace at about 2200°C to produce calcium carbide liquid, which flows into the calcium carbide pot from the discharge port of the calcium carbide furnace, and the calcium carbide pot ...

AI Technical Summary

Problems solved by technology

After the heat exchange is completed, it needs to be lifted manually to the unloading yard

Therefore, there are shortcomings such as low degree of system automation and inability to realize continuous utilization of waste heat.

[0012] The existing patent scheme "a calcium carbide furnace sensible heat recovery equipment", the authorized announcement number is: CN103776271A, has the disadvantages of low heat exchange efficiency of calcium carbide furnace car, low degree of automation control, etc.

Images