Slag discharge device for pyrolysis and gasification furnace of household waste

Abstract

The invention discloses a slag discharge device for a pyrolysis and gasification furnace of household waste. The slag discharge device for the pyrolysis and gasification furnace of the household wastecomprises the pyrolysis and gasification furnace and a slag discharge device body arranged at the bottom of the pyrolysis and gasification furnace; the slag discharge device body comprises a slag discharge pipe, a hydraulic oil cylinder and a push rod piston, a slag hopper is arranged below the interior of the pyrolysis and gasification furnace, a slag falling port is formed below the slag hopperand communicated with the slag discharge pipe, the hydraulic oil cylinder is connected with the push rod piston, a slag outlet is formed in one end of the slag discharge pipe, and the length of the push rod piston is larger than that of the slag falling port. The slag discharge device can achieve the effect of an air preheater, the temperature is guaranteed, and the energy consumption is reduced;the problems are solved that a traditional slag discharge system is huge and complicated, too much auxiliary equipment is arranged, the energy consumption is large, and the operation and maintenancecost is high; the problems of slag blockage and secondary pollution are solved, and the device has the advantages that the device is easy and reliable, the operation and maintenance cost is low, slagdischarge is smooth with a fixed quantity, incineration is thorough, and the ignition loss rate is low.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to a slagging device for a domestic garbage pyrolysis gasifier. Background technique [0002] With the acceleration of urban modernization, the discharge of primary garbage is increasing day by day. Traditional garbage disposal methods cause serious land and air pollution, making it difficult to adapt to sustainable development. At present, many garbage disposals often use garbage pyrolysis and gasification devices. , using the thermal instability of organic matter in garbage, pyrolysis and semi-coking gasification, the process of cracking organic matter to form various new combustible gases, which is more environmentally friendly than incineration and realizes sustainable energy utilization. However, the mainstream waste pyrolysis gasification devices currently on the market mainly have the following shortcomings: [0003] The drying structure, the traditional one is the...

AI Technical Summary

Problems solved by technology

Disadvantages: (1) The dust-proof baffle affects the observation line of sight

The anti-dust baffle is generally installed in the center of the fire viewing tube, which affects the observation line of sight

(2) Without heat insulation measures, it is easy to cause safety accidents

The fire viewing tube is directly inserted into the furnace, usually made of metal material, which conducts heat quickly, which will cause the entire fire viewing device to form a high temperature, which is likely to cause burns and safety accidents during observation and replacement of glass.

(3) Viewing angle of fire is narrow

There are also a small number of gasifiers with built-in air channels, but due to the influence of the temperature in the furnace, the flue gas will burn in the gasifier, which affects the gasification effect. The working status of the mixing materials in the

Disadvantages and deficiencies: (1) The flow rate of flue gas is slow

Due to the impact of the garbage pile pressure on the upper layer of the gasification layer, the exhaust of the flue gas is blocked, the circulation is not smooth, and the extraction speed is slow

(2) Low gasification efficiency

Due to the poor flow of flue gas and slow flow speed, part of the combustible gas produced by gasification has been burned in the gasifier, and at the same time, the temperature in the gasifier is too high, which has an adverse effect on the gasification effect.

(3) Affect the effect of flue gas treatment. Affected by the slow flow speed of flue gas and low gasification efficiency, the amount of combustible gas entering the combustion chamber is not enough, resulting in too low combustion room temperature, and the harmful components in the flue gas cannot be destroyed. The effect of flue gas treatment

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