low sulfur high carbon Calcined coal carbonraiser

Calcined coal recarburizer is the main raw material for the production of carbon steel, and high-quality calcined coal recarburizer is a necessary raw material for the production of high-quality carbon steel. At present, high-quality carbon steel manufacturers in the world use calcined coal for recarburization In the production process, the calcined coal recarburizer needs to be dried with high-temperature gas. In the existing technology, the gas with waste heat is discharged into the surrounding air after use, which is easy to cause heat pollution, and leads to energy waste, which is not energy-saving. Environmental friendly.

In order to solve the above problems, a waste heat recovery treatment device for calcined coal carburant processing is provided, which has the advantages of being able to recycle the used gas, avoid energy waste, energy saving and environmental protection, etc. The waste heat recovery treatment device for calcined coal carburant processing, It includes a hollow drying box in the shape of a cuboid. Inside the drying box, there is a conveyor belt for transporting the raw material of the calcined coal carburizer along its length direction. Several ventilation slots are evenly distributed on the conveyor belt; A second air spray head is arranged between the upper and lower belts in the middle position, and one side of the second air spray head is connected with an air inlet pipe for supplying high-temperature gas to the second air spray head, and the drying box located directly above the second air spray head An air pump is fixedly installed on the top side wall, and the left and right sides of the air pump are provided with two first air spray heads distributed around it, and the air outlet of the air pump is respectively connected with the two first air spray heads through an air guide tube. The air inlet of the drying box is located in the drying box and is fixedly equipped with a suction head; the upper side of one end of the drying box is installed with a feeding structure for feeding the conveyor belt, and the lower side of the other end of the drying box is provided with a suction head located on the conveyor belt. The outlet on the lower right end.With the above-mentioned structure, materials are added to the conveyor belt in the drying box through the calcined coal carburizer feeding structure, and the conveyor belt transports the calcined coal carburant material from the feeding structure to the discharge port, and the air intake pipe passes through the outside The high-temperature gas supply equipment is ventilated to the second nozzle, and the high-temperature gas passes through the ventilation slots on the conveyor belt to dry the raw material of the calcined coal carburizer, and the air pump located directly above the first nozzle passes through the suction nozzle, The gas guide pipe and the first gas injection head dry and heat the raw material of the calcined coal carburizer on the conveyor belt on both sides of the second gas nozzle with the recovered gas, so as to realize the cleaning of the upper surface and the lower surface of the calcined coal carburizer on the conveyor belt. Drying and heating, the calcined coal carburant after drying and heating can be exported to the drying box through the discharge port through the conveyor belt.

The interior of the calcined coal carburizer drying box is provided with several transmission rollers rotating along its length direction, and these transmission rollers are connected to each other through a transmission belt, and one end of one of the transmission rollers is driven by a motor to rotate, and the transmission The conveying direction of the belt is from the feed structure to the discharge port. The feed structure of the calcined coal carburant includes a feed hopper, the lower outlet of the feed hopper is connected with a guide pipe, and one end of the guide pipe passes through the top side wall of the drying box and extends to the oven. Dry box interior. The material guide pipe is arranged obliquely, and the inclination of the material guide pipe points to the transmission direction of the conveyor belt, and a baffle is fixedly arranged on the side opposite to the direction of the material guide pipe in the drying box. Exhaust pipes are fixedly connected to both ends of the drying box, and the jet direction of the first jet head is respectively towards the side opposite to the air pump. The lower side of the calcined coal carburant drying box is provided with more than two sets of supporting structures evenly distributed along its length direction, each group includes two columns, and the upper ends of the two columns are fixedly connected to the bottom side of the drying box, The lower ends of the two columns are fixedly connected with anti-skid pads. The inner bottom surface of the drying box is provided with two sliding tables distributed centering on the outlet. The outer side of the calcined coal recarburiser transmission roller shaft is provided with a rotary concave surface centered on its central axis.

The beneficial effect of the new calcined coal carburizer production process is that the used gas can be recovered and processed through the cooperation of the first gas injection head, air guide pipe, air pump and suction head, so as to realize the recovery and utilization of heat of the gas and avoid energy waste. Energy saving and environmental protection, the cooperation of the first jet head and the second jet head can heat and dry the upper and lower surfaces of the calcined coal carburizer, improving the drying efficiency.