Views: 0 Author: Site Editor Publish Time: 2025-10-12 Origin: Site
Power and Travel System: Equipped with a 36KW four-stroke diesel engine as the power source, combined with a crawler chassis and hydraulic motor drive, it enables the entire vehicle to move, steer, and brake, adapting to the complex ground environment of steel plants.
Hydraulic and Electrical Control System: Adopts a 16MPa hydraulic piston pump to provide pressure. Through the electrical control system, it realizes ±110° rotation of the upper vehicle, movement of the injection pipe, and switching of operation modes, supporting both on-vehicle manual operation and off-vehicle line control.
Injection Execution System: Composed of two-stage (large and small) telescopic injection pipes with a total stroke of 12m, it can achieve ±170° rotation and tilt angles of 12° upward/20° downward, ensuring the nozzle accurately covers key parts of the furnace such as trunnions and molten pools.
Feeding and Mixing System: Includes a material tank, a quantitative feeder, and a mixer. After the gunning material is conveyed by the rotor-type feeder, it is mixed with 12-15% high-pressure water in the mixer to form a paste-like mixture, which is then sprayed out at high speed through the spray gun.
Raw Material Supply: Refractory gunning materials (magnesium-based, aluminum-based, etc.) are loaded into the material tank and conveyed quantitatively by the rotor-type feeder at a rate of 0.5-1m³/h.
Gas-Liquid Mixing: After the powder enters the mixer, it is uniformly mixed with cooling water delivered by a high-pressure water pump to form a paste-like material with strong adhesion.
Directional Injection: The paste is sprayed at high speed through a high-temperature-resistant spray gun onto the damaged parts of the furnace lining. A cooling jacket on the outer layer of the spray gun is filled with cooling water to prevent damage from high temperatures.
Instant Forming: The sprayed layer is sintered and solidified within 10 minutes under the high temperature of the furnace body, forming a dense refractory repair layer.
Strong High-Temperature Adaptability: It can operate directly in a hot environment above 1000°C without the need for furnace shutdown and cooling, greatly shortening the furnace repair time.
Outstanding Repair Efficiency: Its operation efficiency is 10 times that of manual roller brushing. It can complete the gunning of one ton of material in 10 minutes and only requires two operators.
Significant Economy: It extends the furnace service life by more than 30%, reduces the consumption of refractory materials, lowers the maintenance cost per ton of steel, and at the same time reduces the labor intensity of workers.
Low Operation and Maintenance Costs: The all-pneumatic model has no transmission components and requires no lubrication, resulting in a low failure rate. Maintenance only involves regular inspection of wear on the material tank and spray gun.
Hot Emergency Repair: Immediately repair the molten wear areas of the furnace lining after slag tapping, without interrupting production.
Key Part Maintenance: Conduct regular reinforcement on vulnerable areas such as trunnions and slag lines to prevent sudden damage.
Multi-Equipment Compatibility: Can be used for both cold and hot repair of electric furnaces, ladles, mixer furnaces, and iron tapping spouts, realizing multi-purpose use of one machine.
