Denitration reactor hoisted by magnetic force

Abstract

The invention discloses a denitration reactor. The reactor comprises a reactor shell and a plurality of catalyst bed layers, each catalyst bed layer comprises a supporting beam, a catalyst module and a magnetic hoisting beam; more than one catalyst mounting door is arranged at the position, corresponding to each catalyst bed layer, of the reactor shell; the projection center line of the catalyst hoisting beam in the vertical direction penetrates through the center point of each catalyst module, and the hoisting beam is communicated with the catalyst mounting door of the layer; and the plurality of hoisting trolleys are arranged below the hoisting beam, electromagnetic modules are arranged at the lower parts of the hoisting trolleys, a magnet is arranged at the center above each catalyst module, and the electromagnetic modules are in one-to-one correspondence with the magnets on the catalyst modules below the electromagnetic modules. According to the denitration reactor, automatic installation of the catalyst module can be achieved, and meanwhile automatic ash removal operation of the denitration module can be achieved. The denitration reactor provided by the invention can reduce the height of the reactor or increase the filling amount of the catalyst.

Description

technical field [0001] The invention belongs to the technical field of waste gas denitrification, and in particular relates to a denitrification reactor hoisted by magnetic force. Background technique [0002] Many industrial flue gases contain a large amount of nitrogen oxides. Nitrogen oxides are easily discharged into the atmosphere to form acid rain and photochemical smog, which brings harm to the ecological environment and human health. Domestic control of NOx emissions is becoming increasingly stringent. [0003] Selective catalytic reduction (SCR) method is currently the most important dry flue gas denitrification technology in industrial applications. SCR denitrification technology is a process in which reducing gas NH3 reacts with NOx in flue gas to generate nitrogen and water under the action of a solid catalyst within a suitable temperature range. SCR denitrification technology is widely used because of its advantages of convenient operation, simple implementati...

AI Technical Summary

Problems solved by technology

However, this method has the following problems: (1) There are still a series of disadvantages caused by the use of steam soot blowing; (2) There are restrictions on the size of the reactor, which is not suitable for denitrification reactors with large flue gas volumes; (3) The supporting structure needs to occupy a large space, which is not applicable to the limited installation space

However, this method has problems such as inconvenient installation of the catalyst module, and dead areas on the catalyst tray.

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