CN209173571U - A kind of joint removing purification system for flue gas pollutant - Google Patents

Abstract

The utility model discloses a kind of joints for flue gas pollutant to remove purification system, including the heating reaction furnace and denitrating tower logical by flue connection；The fire door of the heating reaction furnace is equipped with temperature inductor, the outer wall of the heating reaction furnace is magnetic conductive metal material layer, the outside of the outer wall is equipped with electromagnetic heating coil, the magnetic field of the electromagnetic heating coil is corresponding with the magnetic field of the outer wall, so as to carry out electromagnetic heating to heating reaction furnace, low energy consumption, and the thermal efficiency is high, energy conservation and environmental protection reduces costs；Several reducing agent spray heads are installed, the reducing agent spray head is connected with for ammonia system, and is equipped with control valve in the heating reaction furnace；Utility model has the advantages that good purification, low energy consumption, and the thermal efficiency is high, and energy conservation and environmental protection extends service life, reduces costs, improves work efficiency.

Description

A kind of joint removing purification system for flue gas pollutant

Technical field

The utility model relates to a kind of denitrating system, specifically a kind of joint for flue gas pollutant removes purification System belongs to denitrating system field.

Background technique

In China's energy resource structure, coal occupies main status.A big chunk of consumption of coal is used for power generation.Combustion Nitrogen oxides caused by coal power generation (NOx) is to cause one of major pollutants of atmosphere pollution.Currently, domestic and international various mainstreams Flue gases purification, although these Technical comparings are mature, industrial achievement is very high, after all generally existing purification of these technologies Flue gas in nitrogen oxides and oxysulfide remove halfway phenomenon.It is entitled that " combined denitration for coal-burning boiler fills Set " application No. is the Chinese utility model patents of " 201620769605.1 " to disclose a kind of combined denitration for coal-burning boiler Device, including heating reaction furnace and denitrating tower；The fire door of the heating reaction furnace is equipped with temperature inductor, in the heating furnace If heating component and main pipe reducing agent spray gun are installed, the heating reaction furnace is connect with the denitrating tower by flue in；It is described The bottom of denitrating tower is liquid storage tank, opens up air inlet in the top tower wall of the liquid storage tank, the flue is connected, in the air inlet Several layers denitrating catalyst interlayer is installed above mouthful.However, device removing clean-up effect is poor, production cost is increased.

Utility model content

To solve the above-mentioned problems, the utility model devises a kind of joint removing purification system for flue gas pollutant System, good purification, low energy consumption, and the thermal efficiency is high, and energy conservation and environmental protection extends service life, reduces costs, and improves work effect Rate.

The technical solution of the utility model are as follows:

A kind of joint removing purification system for flue gas pollutant, including passing sequentially through the logical heating reaction of flue connection Furnace, bag filter and denitrating tower；The outer wall of the heating reaction furnace is magnetic conductive metal material layer, is set on the outside of the outer wall There is electromagnetic heating coil, the magnetic field of the electromagnetic heating coil is corresponding with the magnetic field of the outer wall, so as to anti-to heating Furnace is answered to carry out electromagnetic heating, low energy consumption, and the thermal efficiency is high, and energy conservation and environmental protection reduces costs；It is equipped in the heating reaction furnace hollow Disk is sprayed, the hollow spray disk is equipped with the venthole passed through convenient for flue gas, the shape of the hollow spray disk and the heating reaction furnace Cross section be adapted, the hollow spray disk be equipped with several reducing agent spray heads, the hollow spray disk is connected with for ammonia system, and sets There is control valve；The inside sidewalls of the bag filter are equipped with erosion resistant coating, and the erosion resistant coating includes acid resistant adhesive mortar, the acidproof glue It is equipped with hexsteel in mud, effectively completely cuts off sour corrosion flue gas corrosion, prevents corrosion of the flue gas to bag filter, extends cloth bag and removes Dirt device service life.

Further, the bottom of the denitrating tower is liquid storage tank, opens up air inlet in the top tower wall of the liquid storage tank, even The flue is connect, several layers denitrating catalyst interlayer is installed above the air inlet；The top of the denitrating tower is equipped with exhaust Mouthful, the exhaust outlet is connected with smoke discharging pipe and smoke-returning pipeline respectively, and the exhaust ports are equipped with monitoring ammonia in flue gas gas and contain The flue gas on-line continuous monitoring device of amount, the smoke discharging pipe are equipped with smoke evacuation electric control valve, and the smoke-returning pipeline is equipped with back cigarette Electric control valve, the smoke discharging pipe are connected with ambient atmosphere, and the smoke-returning pipeline passes through gasing pump and the denitrating tower Liquid storage tank is connected；The output end of the flue gas on-line continuous monitoring device is electrically connected with the input terminal of controller, the control The import and export of device is connected respectively at the smoke evacuation electric control valve with the control of cigarette electric control valve is returned, according to flue gas on-line continuous The detection numerical value of monitoring device controls smoke evacuation electric control valve by controller and returns the opening and closing of cigarette electric control valve, when flue gas exists When the detection numerical value of line continuous monitoring device complies with standard, controller control smoke evacuation electric control valve is opened, while it is electronic to return cigarette Regulating valve is closed, and flue gas is discharged into atmosphere；When the detection numerical value of flue gas on-line continuous monitoring device does not meet standard, controller control System smoke evacuation electric control valve is closed, while being returned cigarette electric control valve and being opened, and flue gas enters denitrating tower and then secondary de- by air inlet Nitre, denitration effect are good.Wherein, the controller is connected by temperature controller with electromagnetic heating coil control, controls the electricity The heating work of magnetic heating coil.

Further, the bottom of the bag filter is equipped with ash bucket, and top is equipped with acoustic wave soot blower, the sound wave ashing The sounding end of device is protruded into cloth bag, can star acoustic wave soot blower during being dusted by bag filter, and sound wave is clear Grey device gives bag filter one superpower sound wave, successful distance of the superpower sound wave to one oscillation in surface of bag filter, side It helps dust to fall into ash bucket, realizes that online ash removal, good dedusting effect extend the service life of bag filter.

Utility model has the advantages that good purification, low energy consumption, and the thermal efficiency is high, and energy conservation and environmental protection was extended using the longevity Life, reduces costs, improves work efficiency.

The utility model is described in further detail with reference to the accompanying drawings and examples.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment.

Specific embodiment

The preferred embodiment of the utility model is illustrated below, it should be understood that preferred embodiment described herein It is only used for describing and explaining the present invention, is not used to limit the utility model.

Embodiment 1

As shown in Figure 1, a kind of joint for flue gas pollutant removes purification system, including passes sequentially through flue connection and lead to Heating reaction furnace 1, bag filter 2 and denitrating tower 3；The fire door of the heating reaction furnace 1 is equipped with temperature inductor 11, institute The outer wall for stating heating reaction furnace 1 is magnetic conductive metal material layer, and the outside of the outer wall is equipped with electromagnetic heating coil 12, the electricity The magnetic field of magnetic heating coil 12 is corresponding with the magnetic field of the outer wall, so as to carry out electromagnetic heating, energy to heating reaction furnace Consume low, the thermal efficiency is high, and energy conservation and environmental protection reduces costs；Hollow spray disk 13, the hollow spray are equipped in the heating reaction furnace 1 Disk 13 is equipped with the venthole passed through convenient for flue gas, and the shape of the hollow spray disk and the cross section of the heating reaction furnace 1 are mutually fitted It answers, the hollow spray disk is equipped with several reducing agent spray heads, and the hollow spray disk is connected with for ammonia system, and is equipped with control valve；Institute The inside sidewalls for stating bag filter 2 are equipped with erosion resistant coating, and the erosion resistant coating includes acid resistant adhesive mortar, and tortoise is equipped in the acid resistant adhesive mortar First net effectively completely cuts off sour corrosion flue gas corrosion, prevents corrosion of the flue gas to bag filter, extends bag filter and uses the longevity Life.

The bottom of the denitrating tower 3 is liquid storage tank 31, opens up air inlet 33 in the top tower wall of the liquid storage tank 31, is connected The flue is equipped with several layers denitrating catalyst interlayer 32 above the air inlet 33；The top of the denitrating tower 3 is equipped with row Port 3, the exhaust outlet are connected with smoke discharging pipe 34 and smoke-returning pipeline 35 respectively, and the exhaust ports are equipped in monitoring flue gas The flue gas on-line continuous monitoring device 36 of ammonia level, the smoke discharging pipe 34 are equipped with smoke evacuation electric control valve, described time smoke pipe Road 35 is equipped with back cigarette electric control valve, and the smoke discharging pipe 34 is connected with ambient atmosphere, and the smoke-returning pipeline 35 passes through gas transmission Pump is connected with the liquid storage tank 31 of the denitrating tower 3；The output end of the flue gas on-line continuous monitoring device and controller it is defeated Enter end electrical connection, the import and export of the controller respectively at the smoke evacuation electric control valve and returns cigarette electric control valve control phase Even, according to the detection numerical value of flue gas on-line continuous monitoring device, smoke evacuation electric control valve is controlled by controller and returns cigarette electric adjustable The opening and closing for saving valve, when the detection numerical value of flue gas on-line continuous monitoring device complies with standard, controller control smoke evacuation motorized adjustment Valve is opened, while being returned cigarette electric control valve and being closed, and flue gas is discharged into atmosphere；When flue gas on-line continuous monitoring device detection numerical value not When complying with standard, controller control smoke evacuation electric control valve close, while return cigarette electric control valve open, flue gas by air inlet into Enter denitrating tower and then secondary denitration, denitration effect is good.Wherein, the controller passes through temperature controller and the electromagnetic heating coil control System is connected, and controls the heating work of the electromagnetic heating coil.

The bottom of the bag filter 2 is equipped with ash bucket, and top is equipped with acoustic wave soot blower 21, the acoustic wave soot blower 21 Sounding end is protruded into cloth bag, can star acoustic wave soot blower 21, sound wave ashing during being dusted by bag filter 2 Device gives bag filter 2 one superpower sound waves, successful distance of the superpower sound wave to one oscillation in surface of bag filter 2, side It helps dust to fall into ash bucket, realizes that online ash removal, good dedusting effect extend the service life of bag filter.

The reducing agent jet pipe raising is successively connected with gasifier and ammonia tank for ammonia pipeline, and ammonia mixes with flue gas ratio Lower than 5%.

The denitrating catalyst interlayer is in honeycomb structure, and every layer is respectively set soot blower, improves catalytic effect.

Claims (1)

1. a kind of joint for flue gas pollutant removes purification system, it is characterised in that: logical including passing sequentially through flue connection Heating reaction furnace, bag filter and denitrating tower；The outer wall of the heating reaction furnace is magnetic conductive metal material layer, described outer The outside of wall is equipped with electromagnetic heating coil, and the magnetic field of the electromagnetic heating coil is corresponding with the magnetic field of the outer wall；It is described to add Hollow spray disk is equipped in thermal reaction furnace, the hollow spray disk is equipped with the venthole passed through convenient for flue gas, the shape of the hollow spray disk The cross section of shape and the heating reaction furnace is adapted, and the hollow spray disk is equipped with several reducing agent spray heads, the hollow spray disk It is connected with for ammonia system, and is equipped with control valve；The inside sidewalls of the bag filter are equipped with erosion resistant coating, and the erosion resistant coating includes Acid resistant adhesive mortar, the acid resistant adhesive mortar is interior to be equipped with hexsteel；

The bottom of the denitrating tower is liquid storage tank, opens up air inlet in the top tower wall of the liquid storage tank, connects the flue, institute It states and several layers denitrating catalyst interlayer is installed above air inlet；The top of the denitrating tower is equipped with exhaust outlet, the exhaust outlet It is connected respectively with smoke discharging pipe and smoke-returning pipeline, the flue gas that the exhaust ports are equipped with monitoring ammonia in flue gas Gas content connects online Continuous monitoring device, the smoke discharging pipe are equipped with smoke evacuation electric control valve, and the smoke-returning pipeline is equipped with back cigarette electric control valve, described Smoke discharging pipe is connected with ambient atmosphere, and the smoke-returning pipeline is connected by gasing pump with the liquid storage tank of the denitrating tower；Institute The output end for stating flue gas on-line continuous monitoring device is electrically connected with the input terminal of controller, the import and export of the controller respectively at The smoke evacuation electric control valve is connected with the control of cigarette electric control valve is returned；The controller is added by temperature controller and the electromagnetism Heat coil control is connected, and controls the heating work of the electromagnetic heating coil；

The bottom of the bag filter is equipped with ash bucket, and top is equipped with acoustic wave soot blower, and the sounding end of the acoustic wave soot blower is stretched Enter in cloth bag.