What is a water-cooled spiral slag cooler?

Slag cooler Slag cooler is mainly composed of cylinder, slag inlet box, slag outlet box, power transmission device, chassis and electrical control system. Both the cylinder and the partition frame are water-cooled wall structures, and slag baffles are welded on the inner walls of the cylinder and the partition frame. The slag cooler is mainly composed of an inner and outer double-layer sealing sleeve welded with fixed spiral blades, a slag inlet and outlet device, an exhaust device, a water inlet and outlet device, a transmission device and a base. When the slag cooler is driven by the transmission device to rotate slowly, the high-temperature slag discharged by the boiler is guided forward by the spiral blades in the inner barrel of the sleeve, and the cooling water carries away the heat in the jacket between the inner barrel and the outer barrel, and the cooling air continuously carries away the heat in the inner barrel of the jacket, so that the hot slag is gradually cooled. Dry slag discharge is adopted to keep the activity of slag and improve the comprehensive utilization value of slag. The heat is absorbed by the cooling water and then enters the system for recycling.

It eliminates the environmental pollution of the boiler room, completely improves the labor hygiene conditions of the slag discharge post, and has a positive effect on energy saving and environmental protection. The sleeve rotates integrally to propel materials, and there is no relative movement between the spiral blade and the cylinder, so the whole machine has long service life, low power consumption and low noise. Using wind and water to exchange heat with dispersed slag at the same time, the slag cooling effect is good, the water consumption is small, and there is no special requirement for water quality. The cooling water can be the circulating cooling water of power plant or the general industrial water, which can reduce the capital investment and operation cost without desalination and softening. It is a new type of continuous slag discharge with energy saving, electricity saving, water saving and land saving. Through the special structure set in the slag cooler, the slag quantity can be automatically and continuously adjusted in a large range according to the boiler load, which is beneficial to stabilizing the boiler bed pressure. Adopt cylinder rotation, no spiral rotor, novel concept, reasonable structure, few wearing parts and convenient installation and maintenance.