Quick start-stop type hazardous waste incineration device and incineration method

Abstract

The invention discloses a quick start-stop type hazardous waste incineration device and an incineration method. Existing disposal technical equipment is difficult to adapt to frequent start and stop conditions, and is difficult to achieve better effects in the aspects of reliability, environmental protection and economical efficiency of hazardous waste disposal. The device comprises a quick-start-stop incinerator (2), the quick-start-stop incinerator comprises an incinerator body (13), an incinerator fused salt shell (12) is installed on the outer layer of the incinerator body, an inlet of the incinerator body is connected with a hazardous waste storage bin (1), an outlet of the incinerator body is connected with an inlet of a burnout furnace (3), a bottom outlet of the burnout furnace is connected with a slag bin (7), and the slag bin (7) is connected with a slag storage bin (8). A flue gas outlet at the upper part of the flue gas inlet is connected with a salt-smoke heat exchanger (4), the salt-smoke heat exchanger is respectively connected with a low-temperature molten salt pump (5), a three-way valve (14) and flue gas purification equipment (10), the low-temperature molten salt pump is connected with a low-temperature molten salt tank (6), and the three-way valve is respectively connected with a high-temperature molten salt tank (9), the low-temperature molten salt pump and the low-temperature molten salt tank. The invention is used for the quick start-stop type hazardous waste incineration device.

Description

technical field [0001] The invention relates to the technical field of solid waste disposal, in particular to a rapid start-stop type hazardous waste incineration device and an incineration method. Background technique [0002] With the acceleration of social and economic development and industrialization in China, the discharge of hazardous waste is also increasing. In 2019, the domestic production of hazardous waste was close to 90 million tons. By 2020, due to the impact of the new crown pneumonia epidemic, the generated medical hazardous waste will increase substantially. , the domestic hazardous waste may exceed 100 million tons in 2020; [0003] There are three main methods of hazardous waste disposal in my country, including comprehensive utilization, disposal and storage. With the development of the environmental protection industry, the proportion of comprehensive utilization in hazardous waste disposal in my country is getting higher and higher. In 2019, the propor...

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Problems solved by technology

[0003] There are mainly three methods of hazardous waste disposal in my country, including comprehensive utilization, disposal and storage. With the development of the environmental protection industry, the proportion of comprehensive utilization in hazardous waste disposal in my country is getting higher and higher. In 2019, the proportion of hazardous waste disposal methods reached 35%. % or more. At present, the main hazardous waste disposal technologies are incineration and melting disposal, and the technical equipment used are incinerator and melting furnace respectively. However, the amount of hazardous waste generated per unit time is small and not fixed, and it is difficult To maintain stable load operation, the load changes greatly, and due to the complex composition and changeable characteristics of hazardous waste, the number of unplanned shutdowns of hazardous waste disposal equipment is often frequent, which has an adverse impact on the life and normal operation of disposal equipment ; Existing disposal technology and equipment are difficult to adapt to frequent start and stop, and it is difficult to achieve good results in terms of reliability, environmental protection and economy of hazardous waste disposal

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