Water glass solution heat recycling device used for white carbon black production

Abstract

The invention belongs to the technical field of high temperature water glass solution recycling used for white carbon black production and in particular relates to a water glass solution heat recycling device used for the white carbon black production. The water glass solution heat recycling device comprises a drum type rotary spherical digester, wherein the rear side of the drum type rotary spherical digester is communicated with a buffer tower, and an alkaline residue geosynclines is formed in the bottom of the buffer tower; the rear side of the buffer tower is connected with a plate heat exchanger, the plate heat exchanger is communicated with a cold water inlet pipe, a hot water outlet pipe and a cold material outlet pipe, the other end of the hot water output pipe is communicated witha hot water storage tank, and the hot water storage tank is communicated with a raw material water inlet pipe; and the cold material outlet pipe is communicated with a pressure filter I, and the pressure filter I is connected with a concentrated alkaline storage tank. The water glass solution heat recycling device provided by the invention has the advantages that the plate heat exchanger is arranged, so that heat exchange can be carried out between the high temperature water glass solution and running water, hot water temperature is raised for dissolution of the drum type rotary spherical digester, dissolution efficiency of the drum type rotary spherical digester can be increased, thermal energy during production can be effectively utilized, and air pollution is avoided; meanwhile, temperature of the cooled water glass solution is lowered to be below 60 DEG C after the heat exchange is carried out, life of a filter plate is prolonged, and economic benefit is obvious.

Description

technical field [0001] The invention belongs to the technical field of recovery of high-temperature water glass solution for white carbon black production, and in particular relates to a heat recovery device for water glass solution for white carbon black production. Background technique [0002] Water glass solution (sodium silicate) is an important raw material in the production of white carbon black. The preparation of water glass solution is to add solid water glass and water into the roller steaming ball according to a certain proportion, and then inject steam at a certain pressure. A solution of a certain concentration made within a certain period of time. The temperature of this solution is as high as 150 ° C. The water glass solution dissolved by the steaming ball opens the steaming ball discharge valve, and the internal pressure of the steaming ball presses the high temperature water glass solution into the buffer tower. After staying in the buffer tower for 10-20 m...

AI Technical Summary

Problems solved by technology

[0002] Water glass solution (sodium silicate) is an important raw material in the production of white carbon black. The preparation of water glass solution is to add solid water glass and water into the roller steaming ball according to a certain proportion, and then inject steam at a certain pressure. A solution of a certain concentration made within a certain period of time. The temperature of this solution is as high as 150 ° C. The water glass solution dissolved by the steaming ball opens the steaming ball discharge valve, and the internal pressure of the steaming ball presses the high temperature water glass solution into the buffer tower. After staying in the buffer tower for 10-20 minutes, open the slag discharge valve at the bottom of the buffer tower, and pump part of the alkali slag into the concentrated alkali storage tank for standby. The heat of the high-temperature water glass solution is not recovered, and the heat loss is large

Images