Horizontal type coal briquette drying machine

Abstract

The invention relates to a horizontal type coal briquette drying machine. The horizontal type coal briquette drying machine comprises a drying cavity, a chain plate conveying mechanism arranged in the drying cavity, a feed hopper arranged on the top of the drying cavity, a discharging conveying belt arranged on one side of the bottom of the drying cavity, a heating system, an air circulating device and a tail gas recovery device. Coal briquettes make reciprocating motion in the chain plate conveying mechanism and fall layer by layer until the coal briquettes are dried by the discharging conveying belt and are conveyed out of the drying machine. The air circulating device separates water vapor and then conveys dry hot air back into the drying cavity, and the surfaces of the coal briquettes can be dried more quickly; furthermore, the tail gas recovery device leads flue waste gas of an oil furnace into the drying cavity so that waste heat utilization can further be increased, and the energy consumption of the entire drying finance is greatly lowered; in particular, a rigid grating plate can be guided by a guide rail to carry and dump the coal briquettes, the moving mode of the rigid grating plate is simple, in this way, the structure of the guide rail is made simple, the material falling section falls down slowly, the coal briquettes roll down evenly, the hard collision of the grating plate and other equipment is relieved, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention belongs to the field of drying equipment and relates to a horizontal briquette dryer. Background technique [0002] At present, coal is still used as the main combustion in many places, but direct combustion of ordinary lump coal is prone to smoke and produces a lot of pollutants. Therefore, the country vigorously promotes the use of briquette coal, and uses industrialized methods to process raw coal to reduce the generation of harmful gases. Grinding anthracite coal for desulfurization and adding an appropriate amount of catalyst to make environmentally friendly briquettes is an effective measure to use as fuel, which can reduce the excitation calorific value, solidify polluted gases and ash powder, and cause little environmental pollution. The removal of moisture in briquette molding is the key to provide industrialized production steps, and the high efficiency, high output and energy saving of drying equipment become the key to the des...

AI Technical Summary

Problems solved by technology

[0004] (1) The chain plate and the guide rail are matched during the unloading process, the chain plate is directly turned downward to discharge, without buffer settings, it is easy to cause the briquettes with high moisture content to break when falling and the briquettes to accumulate on the chain plate, resulting in briquettes Reduced pass rate and reduced drying efficiency;

[0005] (2) When the chain plate turns directly around the sprocket, the impact force caused by the chain plate turning directly acts on the chain plate conveying device, which affects the service life of the chain plate conveying device;

[0006] (3) When operating at full load, the briquettes will slide down at the moi angle as a whole, and the briquettes will form accumulations, which is not conducive to the uniform drying of the briquettes;

[0008] Chinese patent application 2014104025116 discloses a dryer, but the load-bearing chain plate mechanism is complicated, resulting in a complicated structure of the guide slide rail, and multiple structures are linked and coordinated during work, resulting in poor reliability of the equipment, high manufacturing and maintenance costs, and overall The volume of the machine is too large. Although there is heat recovery, the heat recovery efficiency is extremely low, and the energy consumption has not changed much. The heat conduction oil pipes are arranged in parallel rows, and the oil return temperature of the heat dissipation pipe in the center is higher than that of the heat dissipation pipes on the side. oil temperature, resulting in the disadvantage of uneven heat dissipation efficiency in heat dissipation

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