Preheating type straw carbonizing apparatus for recovering waste heat

Abstract

The invention discloses a preheating type straw carbonizing apparatus for recovering waste heat. The preheating type straw carbonizing apparatus comprises a carbonizing apparatus main body, wherein a spiral pushing device is mounted at the top of the carbonizing apparatus main body; a feeding hopper is mounted at the top of the spiral pushing device; a drying bin is arranged inside the carbonizing apparatus main body; a stirring rod is mounted inside the drying bin; a servo motor is mounted at a position, corresponding to the stirring rod, on the carbonizing apparatus main body; and a first electromagnetic valve is mounted below the drying bin. According to the invention, a pollution-free straw carbonizing apparatus capable of achieving complete carbonization is designed, a high-temperature carbonizing cavity is communicated with the drying bin through a waste heat return pipe, high-temperature waste gas generated during carbonization enters the drying bin through the waste heat return pipe to dry straws, and meanwhile, the stirring rod is used for stirring materials uniformly, thereby preventing damp straws from being burnt insufficiently, improving the carbonization efficiency of the straws, and reducing heat energy consumption.

Description

technical field [0001] The invention relates to the field of straw carbonization, in particular to a waste heat recovery preheating type straw carbonization device. Background technique [0002] Straw is an efficient and long-term raw material for light industry, textiles and building materials. It can not only partially replace bricks, wood and other materials, but also effectively protect cultivated land and forest resources. The insulation, decoration and durability of straw wall panels are all superior. [0003] Traditional straw carbonization equipment feeds discontinuously, which affects the carbonization process, easily causes waste of heat source, high carbonization cost, and the exhaust gas generated during the carbonization process, the general equipment adopts the method of direct discharge, polluting the atmospheric environment, even if it is slightly treated , There will also be indeterminate pollution, so we propose a waste heat recovery preheating straw carbo...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a waste heat recovery and preheating straw carbonization device to solve the problem that the feeding of straw carbonization equipment in the prior art is discontinuous, which affects the carbonization process, easily causes waste of heat sources, and the cost of carbonization is high. The exhaust gas generated in the environment, the general equipment adopts the direct discharge method, polluting the atmospheric environment, even if it is treated slightly, there will be indeterminate pollution problems

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