Water-cooling spiral conveyor

Abstract

The invention discloses a water-cooling spiral conveyor. The water-cooling spiral conveyor comprises a shell; a conveying shaft is arranged in the shell in the length direction in a penetrating mode;a motor for driving the conveying shaft to rotate is arranged outside the shell; spiral blades used for crushing ash are arranged on the surface of the conveying shaft; a discharging opening allowingthe ash to leave is formed in the lower surface of the shell; a row of water spraying heads are arranged on the upper surface of the shell in the length direction of the shell; a water pump, which isused for supplying water to the water spraying heads, and a water storage tank are arranged outside the shell; the water spraying heads point to the conveying shaft; a mesh belt conveyor used for receiving the ash is arranged below the discharging opening; a collecting frame used for collecting water and fine slag is arranged below the mesh belt conveyor; and the collecting frame is connected withthe water storage tank through a heat exchanger. Water is directly sprayed on ash and the conveying shaft by means of the water spraying heads so as to realize direct cooling of the conveyor and materials; and conveying of high-temperature materials can be achieved by using a traditional spiral conveyor, so that the production cost is reduced.

Description

technical field [0001] The present invention relates to a screw conveyor, more particularly, it relates to a water-cooled screw conveyor. Background technique [0002] The fuel used in biomass fuel power plants is waste from agricultural and forestry production such as straw, wheat straw, corn stalks, branches and bark, etc. These fuel ash contains a certain amount of trace elements such as potassium, which can be used as fertilizer or field. Biomass fuel usually contains a certain amount of alkali metal, which is prone to slagging after burning in the boiler. The industry usually uses a water-cooled screw ash machine to crush the slag discharged from the boiler, and then cool it to below 80°C for transport to the field. [0003] Notification number CN102556608B, the patent of publication date 2014-03-26 discloses a high temperature resistant screw conveyor, including: a motor control system and a material conveying system, and also includes a coaxial arrangement between th...

AI Technical Summary

Problems solved by technology

However, this kind of conveyor can only solve the problem of heat insulation of the motor, and the temperature of the conveyed materials cannot be cooled, and subsequent processes need to be added to cool down, so there will be a problem of low processing efficiency

Images