Simple and rapid flue gas cooling and dust removal pretreatment device and method

Abstract

The invention relates to a simple and rapid flue gas cooling and dust removal pretreatment device. The device comprises a flue gas inlet pipe (1), a nozzle (2), a spiral flue (3), an ash discharging pipe fitting (4), an ash clearing valve (5) and a flue gas discharging pipe (6), wherein the flue gas inlet pipe (1) is connected with the spiral flue (3), the nozzle (2) is arranged on the flue gas inlet pipe (1), an outlet of the spiral flue (3) is connected with the ash discharging pipe fitting (4) and the flue gas discharging pipe (6), and the ash clearing valve (5) is arranged on the ash discharging pipe fitting (4). Compared with the prior art, the device is applicable to flue gas purification treatment on occasions where scene conditions are limited, equipment is required to be dismounted and transported, emergency treatment is required and the like.

Description

technical field [0001] The invention belongs to the flue gas rapid cooling and dust removal technology in the field of environmental protection. In particular, it involves the use of spraying cooling water into the flue to quickly cool the flue gas, and then utilizes the dual effects of centrifugal force and gravity on the flue gas passing through the spiral descending flue to initially separate the dust from the flue gas, and finally discharge it through the ash hopper. A device for rapid cooling of flue gas and pre-dust removal. Background technique [0002] Incineration technology has become one of the main technologies for waste disposal in my country. In the process of disaster relief such as earthquakes and floods, it is often necessary to use incineration to sterilize, harmlessly and reduce the amount of domestic and medical waste at the disaster site. At the same time, in the process of industrial site restoration, heat treatment is often used to treat the soil of ...

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Problems solved by technology

However, these devices are generally complex in structure, relatively large, and inconvenient to install and transport.

In disaster relief sites and site restoration sites, since the processing site is constantly changing, the site conditions may be limited by the site area, transportation conditions and other conditions, and a simple flue gas cooling device that can be easily installed and transported is required.

However, some current invention patents that have been disclosed, such as CN103432887A, etc. do not involve equipment such as flue gas cooling; or as described in CN108246093A, its flue gas cooling system is relatively complicated and huge, and is not suitable for waste incineration smoke in occasions such as emergency relief or site restoration. Gas treatment

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