Limestone powder calcining furnace

Abstract

The invention discloses a limestone powder calcining furnace which comprises a furnace body, wherein the left side and the middle of the upper surface of the furnace body are connected with a feedinghopper and a motor B respectively; a motor A is arranged below the furnace body; output shafts of the motor A and the motor B are respectively connected with a stirring shaft A and a stirring shaft B;stirring blades are connected to the stirring shaft A and the stirring shaft B; high-temperature belts are connected to the middle of the inner side wall of the furnace body; the upper and lower parts of the inner side wall of the furnace body are connected with guide plates; the lower surfaces of the guide plates and the high-temperature belts are connected with material blowing devices; the lower surfaces of the stirring blades are connected with poking devices; the outer side of the stirring shaft A is connected with a discharge tower through a bearing; the outer side of the lower part ofthe furnace body is sleeved by a cooling sleeve; the lower part of the right side of the cooling sleeve is connected with a liquid inlet pipe; the upper part of the left side of the cooling sleeve isconnected with the inlet end of a steam drum through a liquid outlet pipe; the outlet end of the steam drum is connected with the stirring shaft A through a steam pipe; and the left side and the rightside of the lower surface of the furnace body are connected with discharge tubes. The limestone powder calcining furnace has the advantages of thorough calcination, wall adhesion prevention, high discharge efficiency, energy conservation and environment protection.

Description

technical field [0001] The invention belongs to the technical field of calcination equipment, in particular to a limestone powder calcination furnace. Background technique [0002] In the process of mine processing, a large amount of limestone powder will be produced. Limestone powder is piled up in the mine as mine waste, which occupies a large area, causes waste of resources, and pollutes the environment. Calciner can be used to calcine and reuse limestone powder. The existing calcination furnace has a fast feeding speed, and only one long stirring shaft is used for stirring. The stirring shaft needs to be made of special heat-resistant steel. The wall sticking phenomenon occurs, the unloading efficiency is low, and the high-temperature harmful exhaust gas is directly discharged into the environment, polluting the environment; therefore, it is urgent to design a low-cost, slow down the feeding speed, and the limestone powder is calcined thoroughly, avoiding the wall sticki...

AI Technical Summary

Problems solved by technology

[0002] In the process of mine processing, a large amount of limestone powder will be produced. Limestone powder is piled up in the mine as mine waste, which occupies a large area, causes waste of resources, and pollutes the environment. Calciner can be used to calcine and reuse limestone powder. The existing calcination furnace has a fast feeding speed, and only one long stirring shaft is used for stirring. The stirring shaft needs to be made of special heat-resistant steel. The wall sticking phenomenon occurs, the unloading efficiency is low, and the high-temperature harmful exhaust gas is directly discharged into the environment, polluting the environment; therefore, it is urgent to design a low-cost, slow down the feeding speed, and the limestone powder is calcined thoroughly, avoiding the wall sticking phenomenon, unloading Limestone powder calcination furnace with high material efficiency, effective use of waste heat in tail gas, treatment of tail gas and then discharge to the environment, reduction of tail gas pollution to the environment, energy saving and environmental protection

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