Efficient and clean coal-gas coproduction device

Abstract

The invention relates to an efficient and clean coal-gas coproduction device. The efficient and clean coal-gas coproduction device comprises a crushing-drying device, an incinerator, a secondary combustion chamber and a quench tower, wherein a furnace body on one side of the incinerator is provided with a second feeding hole; the furnace body on the other side of the incinerator is provided with aflue gas outlet; the flue gas outlet is in communication with the secondary combustion chamber; the secondary combustion chamber is in communication with the quench tower; a plurality of crushing-drying chambers are formed in the crushing-drying device; the crushing-drying chambers are in communication with one another; bevel gear cutters are arranged in the crushing-drying chambers; inner side walls of the crushing-drying chambers are provided with first gas inlets; a first heat exchanger is arranged between the secondary combustion chamber and the quench tower; a second heat exchanger is arranged behind the quench tower in a communication way; the second heat exchanger is in communication with the first gas inlets; a side wall of the secondary combustion chamber is provided with a second gas inlet; and the first heat exchanger is in communication with the second gas inlet. Through the adoption of the efficient and clean coal-gas coproduction device, heat produced by the combustion of waste is utilized repeatedly, and the utilization ratio of the heat produced by the combustion of waste is increased. The efficient and clean coal-gas coproduction device is more energy-efficient and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of waste treatment, in particular to the field of high-efficiency clean carbon-gas cogeneration devices. Background technique [0002] With the development of industry, the hazardous waste discharged in the industrial production process is increasing day by day. It is estimated that the annual production of hazardous waste in the world is 330 million tons. Due to the serious pollution and potential serious impact of hazardous waste, in industrially developed countries Hazardous waste has been called "political waste"; during the traditional incineration process of hazardous waste, the hot flue gas generated will be sent to the secondary combustion chamber for further intensified combustion to completely degrade dioxins, and then the hot flue gas Rapid cooling to avoid the regeneration of dioxin-like substances; in fact, the main temperature range for the regeneration of dioxin-like substances is 550°C to 350...

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Problems solved by technology

[0005] As a further optimization scheme of the present invention, the incinerator is also provided with a chain grate, and several garbage turning wheels are arranged on the chain grate. The garbage turning wheels include 4 right-angle grooves, and the whole is in the shape of a "swastika". When rotating, the material enters the groove, and with the rotation of the device 12, the garbage in the groove gradually rises and falls, thereby playing the role of turning the garbage, making the garbage incinerated more fully, and solving the problem of the chain grate type incinerator. The disadvantage that the internal material cannot be turned during the incineration process leads to insufficient combustion

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