Solid hazardous waste and liquid hazardous waste cooperative disposal incinerator and disposal method

Abstract

The invention discloses a solid hazardous waste and liquid hazardous waste cooperative disposal incinerator and a disposal method. The solid hazardous waste and liquid hazardous waste cooperative disposal incinerator comprises a first rotary kiln combustion chamber, a first fluidized bed combustion chamber, a second combustion chamber and a rear smoke channel. The first rotary kiln combustion chamber is provided with a feed port, a rotary kiln combustion-supporting air inlet and a waste gas outlet. The first fluidized bed combustion chamber is provided with a fluidized air inlet and a waste gas outlet. A hearth of the first fluidized bed combustion chamber is filled with a quartz sand bed material. A waste liquid spraying device is arranged on the upper side of the quartz sand bed material. The fluidized air inlet is connected with a fluidization draught fan. The waste liquid spraying device is externally connected with a waste liquid pump. The second combustion chamber is provided with two waste gas inlets, a secondary air inlet and a waste gas outlet. The two waste gas inlets are connected with the waste gas outlet of the first rotary kiln combustion chamber and the waste gas outlet of the first fluidized bed combustion chamber correspondingly. Liquid is incinerated in the first fluidized bed combustion chamber, solid is incinerated in a rotary kiln, the corresponding materials are converted into gas-phase substances in the first combustion chambers, and then the gas-phase substances enter the common second combustion chamber, so that the problem that the liquid waste disposal capacity of an existing rotary kiln is not sufficient can be solved.

Description

Technical field [0001] The invention relates to the technical field of hazardous waste treatment, in particular to an incinerator and a treatment method for co-processing solid hazardous waste and liquid hazardous waste. Background technique [0002] With the development of society and economy, the number and types of industrial wastes, especially hazardous wastes, continue to increase, which has attracted great attention from the government and the public. The local discharge and unreasonable disposal of hazardous waste will endanger people's health, and long-term accumulation will severely damage the ecological environment on which mankind depends, and the extent of damage is much greater than that of domestic waste. Hazardous waste has become a prominent public hazard worldwide. Actively develop new technologies, new processes, and new equipment, carry out centralized management and comprehensive disposal of hazardous waste, and reduce and eliminate its pollution. [0003] Rota...

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Problems solved by technology

[0007] The invention provides an incinerator and treatment method for co-processing solid hazardous waste and liquid hazardous waste. Aiming at the problems of the existing rotary kiln incinerators in the disposal of hazardous waste, the disposal phase state is single and the disposal capacity of liquid hazardous waste is weak. The mixed furnace type with a relatively independent combustion zone can complement the advantages and disadvantages of the fluidized bed incinerator and the rotary kiln incinerator. The liquid is burned in the fluidized bed-combustion chamber, and the solid is burned in the rotary kiln. In the center, the corresponding materials are converted into gas phase substances and then enter the common secondary combustion chamber, which can solve the shortcomings of the original rotary kiln’s insufficient capacity to dispose of liquid waste, improve the disposal capacity of hazardous waste with different physical properties and cannot be mixed, and better control secondary combustion. The combustion temperature of the combustion chamber makes the system run stably and reliably

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