Spray pipe device with guide plate for uniformly dividing particles and mercury removal flue equipment thereof

Abstract

The invention discloses a spray pipe device with a guide plate for uniformly dividing particles and a mercury removal flue equipment thereof, and belongs to the technical field of mercury control in coal-fired flue gas. The spray pipe device comprises a spray pipe and a plurality of guide plates; the longitudinal section of the spray pipe is rectangular, and the spray pipe comprises an inlet section, a corner section and a nozzle section which are sequentially connected; the inlet section is used for butting a particle feeding pipe, and the nozzle section is used for butting a flue pipe wall;each guide plate comprises a guide section, a bent blade and a straight wall flow dividing plate which are sequentially connected; each guide section is parallel to the nozzle section and is evenly distributed in the nozzle section, the front end of each guide section is flush with the nozzle of the nozzle section, and the nozzle is evenly divided into a plurality of independent small nozzles; thebending angles of each bent blade and corner section are equal; each straight wall flow dividing plate is parallel to the inlet section and equally divides the inlet section in the width direction ofthe inlet section. On the basis of the spray pipe device, the uniformity of the distribution of an adsorbent in the flue can be improved under the condition that the spray pipe is not increased, so that the mercury removal capacity is improved.

Description

technical field [0001] The invention belongs to the technical field of mercury control in coal-fired flue gas, and relates to a deflector nozzle device for injecting mercury-removing adsorbents, more specifically, to a nozzle device for uniformly dividing particles by a deflector and its removal device. Mercury flue equipment. Background technique [0002] Mercury is a kind of nerve poison, which is highly cumulative and irreversible, and poses a great threat to human health. Coal-fired power plants are one of the most important sources of anthropogenic mercury pollution. With the continuous improvement of environmental protection requirements, it is of great significance to seek efficient, economical and environmentally friendly mercury control technologies. [0003] In the prior art, mercury removal devices are usually used to remove mercury in flue gas by using high-efficiency adsorption materials. The current main research focuses on two aspects: mercury removal adsorp...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a nozzle device for evenly distributing particles by a deflector plate and its mercury removal flue equipment, which are used for spraying mercury removal adsorbent particles. A plurality of deflectors are set in the nozzle, and the granular adsorbent is evenly divided by the deflector and sprayed into the flue through a rectangular surface, so that the uniform distribution of the adsorbent in the flue can be improved without increasing the nozzle performance, thereby improving the mercury removal capacity, thereby solving the technical problems of poor mercury removal capacity due to too few nozzles in the prior art, and technically difficult technical problems if additional nozzles are added

Images