Spraying, heating and atomizing device for spraying ammonia water for denitration

Abstract

The invention discloses a spraying, heating and atomizing device for spraying ammonia water for denitration, and relates to the field of atomizing devices. The device comprises a denitration spray gun, an atomization nozzle is assembled at one end of the denitration spray gun, a first connector is fixedly installed on the lower surface of the end, away from the atomization nozzle, of the denitration spray gun, a second connector is movably connected to the lower surface of the first connector, and a second connecting pipe is assembled at one end of the second connector. When the atomization device is used, a threaded rod on one side of an atomization nozzle is rotated, so that the threaded rod drives a first bevel gear to rotate, a second bevel gear meshed with the first bevel gear drives a fan-shaped plate to rotate, the fan-shaped plate gradually covers a fan-shaped hole formed in one end of a fixing block, and the size of the fan-shaped hole in the atomization nozzle is controlled; the atomization spraying amount of the reducing agent can be controlled, and waste of the atomizing agent is reduced.

Description

technical field [0001] The invention relates to the technical field of atomization devices, in particular to a spray heating atomization device for denitrification and spraying ammonia water. Background technique [0002] Atomization refers to the operation of dispersing liquid into tiny droplets through nozzles or high-speed airflow. The numerous dispersed droplets that are atomized can trap particulate matter in the gas. The methods of liquid atomization include pressure atomization, gas atomization and Sonic atomization, etc., means that the liquid is turned into small droplets through a special device, and sprayed out in the form of mist. [0003] In the denitrification system, one of the cores is to spray the gaseous reducing agent (mainly ammonia water) evenly into the flue gas. In order to increase the effective contact between the reducing agent and the flue gas, the reducing agent needs to be atomized and sprayed into the flue gas. Generally, When spraying, the den...

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Problems solved by technology

[0003] In the denitrification system, one of the cores is to spray the gaseous reducing agent (mainly ammonia water) evenly into the flue gas. In order to increase the effective contact between the reducing agent and the flue gas, the reducing agent needs to be atomized and sprayed into the flue gas. Generally, When spraying, the denitrification spray gun will be used for operation, but the size of the hole at the nozzle of the denitrification spray gun is fixed, so that the amount of atomized atomization sprayed is always the same during the spraying process, so the operator cannot be very good according to the smoke. The size of the air adjusts the amount of atomizing agent sprayed from the nozzle of the spray gun. It is easy to spray too much atomizing agent, resulting in waste of atomizing agent and increasing the overall cost of use.

[0004] In addition, when the reducing agent is introduced into the denitrification spray gun, it is generally connected with the denitrification spray gun through the connecting pipe. There are many fixed parts, on the one hand, it is easy to lose, on the other hand, it is inconvenient to install and disassemble during use

[0005] In general, in order to prevent the reducing agent from clogging the atomizing nozzle, it is necessary to filter the reducing agent entering the nozzle. The filtered filtrate is located on the filter screen, which is easy to form accumulation and cause the filter screen to be easily blocked. Traditionally, the filter screen is mostly manually removed. Take it out for cleaning, so that it cannot be cleaned during the use of the filter, which will affect the atomization effect of the reducing agent. In view of the above situation, we propose a spray heating atomization device for denitrification and ammonia spraying

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