Electrical refractory gunning machine
An electrical refractory gunning machine is a specialized piece of equipment used in high-temperature industrial applications, such as steelmaking, cement production, and other metallurgical processes. It is designed to apply refractory materials (heat-resistant linings) to the internal surfaces of furnaces, kilns, ladles, and other vessels that are exposed to extreme heat.
Electrical refractory gunning machine is a specialized, electrically powered device that applies refractory materials (such as refractory concrete, ceramic coatings, and fireclay) to the linings of high-temperature industrial equipment (such as furnaces, kilns, boilers, and ladles) using a high-speed spray gun.

Its core functions include:
1. Efficient Repair: Rapidly repairs the refractory layer of industrial furnace linings, extending equipment life.
2. Precise Application: Suitable for small-area repairs or when precise control of material thickness is required.
3. Adaptable: Capable of handling dry, wet, or premixed refractory materials to meet diverse process requirements.

Features and components of electrical refractory gunning machine:
1. Electrical Power System:
– Unlike traditional pneumatic or diesel-powered gunning machines, the electrical version is powered by an electric motor.
– Offers precise control over the feeding and spraying mechanisms.
– Environmentally friendly and suitable for indoor or enclosed environments where emissions are a concern.
2. Refractory Material Feeding System:
– Typically includes a hopper for holding dry or pre-mixed refractory material (such as castables, gunning mixes, or ramming materials).
– A screw conveyor or auger system feeds the material consistently into the delivery system.
3. High-Pressure Delivery System:
– Uses an electric pump or rotor-stator mechanism to propel the mixed refractory material through a delivery hose.
– Ensures uniform application and good adhesion to vertical or overhead surfaces.
4. Gunning Lance or Nozzle:
– The operator controls a flexible hose with a nozzle to direct the refractory spray onto the repair area.
– Some systems include robotic arms for automated application in hard-to-reach areas.
5. Control Panel:
– Allows the operator to adjust material flow rate, water ratio, and pressure.
– May include PLC (Programmable Logic Controller) integration for automation and monitoring.

Applications of electrical refractory gunning machine:
– Repair and relining of basic oxygen furnaces (BOF) and electric arc furnaces (EAF).
– Maintenance of blast furnace runners and tapholes.
– Lining of ladles, torpedoes, and cement kilns.