Waste horizontal screening fluidized pyrolysis device

Abstract

The invention discloses a rubbish transverse motion screening, fluidifying and pyrolyzing device. To overcome the defects that an existing rubbish pyrolyzing device is blocked easily and generates dioxin, and the maintenance and use expense is high, a screening mechanism is arranged below the side of a rubbish inlet, a gas phase pyrolyzing chamber is arranged above the screening mechanism, at least two solid phase pyrolyzing chambers are arranged below the screening mechanism, each solid phase pyrolyzing chamber is provided with inclined walls connected with each other, each solid phase pyrolyzing chamber is provided with a burnout chamber, a wind cavity and an ash channel, each wind cavity is communicated with the corresponding burnout chamber through a wind channel of an interlayer, each ash channel is communicated with the corresponding burnout chamber and penetrates the corresponding interlayer and the corresponding wind cavity, and the wind cavities are connected with a hot air conveying mechanism. The device is used for carrying out rubbish pyrolyzing treatment and can pyrolyze and screen rubbish at the same time, the rubbish can be classified, fluidified and pyrolyzed in separated chambers, pyrolysis blocking can be prevented, environment-friendly pyrolysis without generating dioxin can be achieved better, the construction investment and pyrolysis energy consumption can be reduced, and the operation and maintenance cost is low.

Description

technical field [0001] The invention relates to a garbage treatment device, in particular to a garbage horizontal screening fluidization pyrolysis device. Background technique [0002] Garbage pyrolysis is a waste treatment method widely used in developed countries. In Japan and other countries where arable land is scarce, the proportion of waste incineration and pyrolysis treatment reaches 65-80%. However, the existing waste incineration pyrolysis treatment device has the following disadvantages: [0003] First, the existing waste incineration pyrolysis device cannot automatically screen the waste during the incineration and pyrolysis process, and implement classification and gradual pyrolysis, which is prone to stagnation in the incineration process, making the pyrolysis state, and preventing the formation of dioxins Environmentally friendly pyrolysis is difficult to achieve. The existing garbage mixture contains domestic organic matter, plastic, glass, tiles, metal, cem...

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Problems solved by technology

[0003] First, the existing waste incineration pyrolysis device cannot automatically screen the waste during the incineration and pyrolysis process, and implement classification and gradual pyrolysis, which is prone to stagnation in the incineration process, making the pyrolysis state, and preventing the formation of dioxins Environmentally friendly pyrolysis is difficult to achieve

The existing garbage mixture contains domestic organic matter, plastic, glass, tiles, metal, cement blocks and other components. It is difficult to classify and treat before incineration, and the cost is high. Therefore, in practice, the garbage mixture is directly put into the furnace for incineration and pyrolysis.

However, the problem caused by the pyrolysis of the waste mixture directly into the furnace for incineration is that the incineration temperature is difficult to adapt to the organic waste that is prone to dioxin and the inorganic waste that is easy to cause stagnation and affect the incineration state and slag discharge.

The congestion and blockage of the incineration process not only increases the maintenance cost, but also changes the incineration state, affects the control of inhibiting the formation of dioxins in the early stage of incineration, increases the difficulty and cost of subsequent dioxins treatment, and increases the subsequent flue gas purification and removal of dioxins. Possibility of Secondary Pollution Caused by Dioxins

[0004] The second is that the existing incinerator process mechanism units are horizontally extended, occupy a large area, and require a large one-time investment

In this regard, it is difficult to build without a developed economic foundation and strong investment capabilities

[0005] The third is that the existing waste incineration pyrolysis device requires a lot of auxiliary energy, and the utilization efficiency of the heat generated by waste incineration itself is not high enough, resulting in high operating costs of waste incineration

However, none of these technologies can perform automatic screening and classification of garbage in pyrolysis and progressive pyrolysis, and cannot better prevent pyrolysis stagnation and generation of dioxins. The practicability is not strong, and the pyrolysis operation benefits are not high

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