CN208526245U

CN208526245U - A kind of flue gas desulfurization denitration dust-removing device

Info

Publication number: CN208526245U
Application number: CN201820645164.3U
Authority: CN
Inventors: 王春灵
Original assignee: Dalian Great Yu Water Technology Co Ltd
Current assignee: Dalian Great Yu Water Technology Co Ltd
Priority date: 2018-05-02
Filing date: 2018-05-02
Publication date: 2019-02-22
Anticipated expiration: 2028-05-02

Abstract

The utility model discloses a kind of flue gas desulfurization denitration dust-removing devices in fume treatment field, cavity including shell and enclosure interior, smoke inlet is provided on the side side wall of shell, top is provided with exhanst gas outlet, bottom is equipped with thick liquid discharge mouth, and upper spacer, lower clapboard are equipped in the cavity, is equipped with venthole on the upper spacer and lower clapboard, cavity is divided into upper chamber, middle chamber and lower chambers by upper spacer and lower clapboard；Demister and adsorption layer are equipped in the upper chamber, middle chamber includes horizontally disposed spray equipment, and bottom chamber is equipped with reactive absorption device.The apparatus structure is simple, good purification and will not generate secondary pollution.

Description

A kind of flue gas desulfurization denitration dust-removing device

Technical field

The utility model relates to fume treatment field, specially a kind of flue gas desulfurization denitration dust-removing device.

Background technique

With the continuous intensification of countries in the world process of industrialization, SO₂、NO_XPollution has been more than that smoke contamination becomes atmospheric environment The first big pollutant, it in addition to destroy ecological environment can also form photochemical fog, endanger human health.Both at home and abroad for de- Sulphur denitration dust collecting device has certain research, but since existing equipment is there are cost height, processing is complicated, the comprehensive effect of desulphurization denitration dedusting Can be bad situations such as, causes desulphurization denitration dust removal problem not yet thoroughly to solve so far.

Utility model content

The purpose of this utility model is to provide a kind of flue gas desulfurization denitration dust-removing devices, to solve in above-mentioned background technique The problem of proposition.

To achieve the above object, the utility model provides the following technical solutions: a kind of flue gas desulfurization denitration dust-removing device, packet The cavity of shell and enclosure interior is included, smoke inlet is provided on the side side wall of shell, top is provided with exhanst gas outlet, bottom Portion is equipped with thick liquid discharge mouth, and upper spacer, lower clapboard are equipped in the cavity, is equipped with venthole on the upper spacer and lower clapboard, on Cavity is divided into upper chamber, middle chamber and lower chambers by partition and lower clapboard；It is characterized by: being equipped with demisting in the upper chamber Device and adsorption layer, spray equipment is horizontally disposed in middle chamber, and bottom chamber is equipped with reactive absorption device, the reactive absorption device Including open-topped cylindrical reaction chamber, the reaction chamber bottom is equipped with smoke inlet and lye import, the smoke inlet and cigarette The connection of gas entrance, the lye import connect lye pond by liquid feeding pump；Rotary drum is equipped in reaction chamber, the rotary drum is a cylinder Body, be provided on outer cylinder spacing uniformly, the groove of deep equality, rotary drum is bolted on a center bolt, described Center bolt connects motor, and rotation is driven by the motor.

Preferably, mixer is equipped at the smoke inlet, the mixer is equipped with ozone inlet, and the ozone inlet connects Ozone generator is connect, spraying device is additionally provided in mixer, the spraying device connection hydrogen peroxide stores injected system；It is described double Oxygen water storage injected system includes dioxygen water storage apparatus and hydrogen peroxide activation device.

Preferably, the lower chambers are externally connected to circulating pump, and the spray equipment of the circulating pump and middle chamber connects.

Preferably, the spray equipment is provided at least one layer of spraying layer.

Preferably, blocking apparatus is provided with below the demister.

Preferably, desulphurization denitration adsorbent is equipped in the adsorption layer.

Compared with prior art, the utility model has the beneficial effects that

1) due to the high speed rotation of rotary drum in reactive absorption device, lye is got rid of from rotary drum to reaction under the influence of centrifugal force Chamber interior walls, and then low pressure void area is formed in rotary drum groove, flue gas pierces groove since density is small and along rotary drum Tortuous Surface It rises, the time of contact of the gas holdup and lye and flue gas in lye is considerably increased, so that the pollutant and alkali that adulterate in flue gas The collision probability of liquid greatly improves；

2) mixer is set at smoke inlet, hydrogen peroxide, ozone and flue gas are mixed, while will be not easy in flue gas by alkali The NO oxidation that liquid removes can be dissolved in the ionic compound (HNO of water₂、HNO₃), then further removed by lye, and it is excessive H₂O₂、O₃It is then decomposed in subsequent purification process, secondary pollution will not be generated；

3) flue gas passes through adsorption layer before device out, can further adsorb the SO for not being absorbed reaction₂、 NO_X, purification Effect is good.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

In figure: 1 smoke inlet, 2 mixers, 3 spraying devices, 4 smoke inlets, 5 motors, 6 rotary drums, 7 thick liquid discharge mouths, 8 lye into Mouth, 9 liquid feeding pumps, 10 lye ponds, 11 reaction chambers, 12 circulating pumps, 13 lower clapboards, 14 spraying layers, 15 upper spacers, 16 blocking apparatus, 17 adsorption layers, 18 exhanst gas outlets, 19 demisters, 20 hydrogen peroxide activate device, 21 dioxygen water storage apparatus, 22 ozone generators.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Referring to Fig. 1, the utility model provides a kind of technical solution: a kind of flue gas desulfurization denitration dust-removing device, including shell The cavity of body and enclosure interior is provided with smoke inlet 1 on the side side wall of shell, and top is provided with exhanst gas outlet 18, bottom Portion is equipped with thick liquid discharge mouth 7, and upper spacer 15, lower clapboard 13 are equipped in the cavity, is equipped on the upper spacer 15 and lower clapboard 13 Cavity is divided into upper chamber, middle chamber and lower chambers by venthole, upper spacer 15 and lower clapboard 13；It is equipped with and removes in the upper chamber Day with fog 19 and adsorption layer 17, spray equipment is horizontally disposed in middle chamber, and bottom chamber is equipped with reactive absorption device, the reaction suction Receiving apparatus includes open-topped cylindrical reaction chamber 11, and 11 bottom of reaction chamber is equipped with smoke inlet 4 and lye import 8, institute It states smoke inlet 4 to be connected to smoke inlet 1, the lye import 8 connects lye pond 10 by liquid feeding pump 9；It is equipped in reaction chamber 11 Rotary drum 6, the rotary drum 6 are a cylindrical body, be provided on outer cylinder spacing uniformly, the groove of deep equality, rotary drum 6 passes through bolt It is fixed on a center bolt, the center bolt connects motor 5, and rotation is driven by the motor 5.The flue gas enters Mixer 2 is equipped at mouth 1, the mixer 2 is equipped with ozone inlet, and the ozone inlet connects ozone generator 22, mixer 2 It is inside additionally provided with spraying device 3, the spraying device 3 connects hydrogen peroxide and stores injected system.The lower chambers are externally connected to Circulating pump 12, the circulating pump 12 are connect with the spray equipment of middle chamber；The spray equipment is provided at least one layer of spraying layer 14, spraying layer 14 includes sprayed slurry circulation line and absorbs slurry nozzle, nozzle then following by connection middle chamber and lower chambers Ring pumps 12 to provide lye.

Specifically, the storage of hydrogen peroxide described in the present embodiment injected system includes that dioxygen water storage apparatus 21 and hydrogen peroxide swash Removable mounting sets 20.

Specifically, the lower section of demister 19 described in the present embodiment is provided with blocking apparatus 16.

Specifically, being equipped with desulphurization denitration adsorbent in adsorption layer 17 described in the present embodiment.

The working principle of the present embodiment:

Flue gas is mixed through mixer 2 with ozone and hydrogen peroxide, at the same NO by ozone and hydrogen peroxide oxidation at NO₂、N₂O₅、 NO₃, then SO₂、NO₂、N₂O₅、NO₃The H that can be dissolved in water is generated Deng being further dissolved in water and reacting with water₂SO₃、HNO₂、 HNO₃, enter in the reaction chamber 11 of lower chambers under the drive of flue gas stream, come into full contact with lye and react generation salt, together When flue gas in particulate matter contact, when hitting, the fine smoke in flue gas will be captured or adhere to, thus make tiny flue dust from It is separated in flue gas, completes once desulfurization denitration dust collecting；Therefore when flue gas leaves lower chambers and enters middle chamber, most pollution Object has been absorbed reaction, remaining SO₂、NO₂、N₂O₅、NO₃With particulate matter etc. can and the spray liquid in the indoor spray equipment of lumen Drop forward contacts, and is washed by spray droplet, removes the remaining pollutant of flue gas, completes secondary sulphur denitration dust collecting；By secondary de- Flue gas after sulphur denitration dust collecting enters upper chamber, using absorption after blocking apparatus 16 removes salt fog and demister 19 removes water Chimney is discharged into from exhanst gas outlet 18 after the dedusting of desulphurization denitration three times of layer 17.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of flue gas desulfurization denitration dust-removing device, the cavity including shell and enclosure interior is set on the side side wall of shell It is equipped with smoke inlet (1), top is provided with exhanst gas outlet (18), and bottom is equipped with thick liquid discharge mouth (7), and upper spacer is equipped in the cavity (15), lower clapboard (13) are equipped with venthole, upper spacer (15) and lower clapboard on the upper spacer (15) and lower clapboard (13) (13) cavity is divided into upper chamber, middle chamber and lower chambers；It is characterized by: in the upper chamber be equipped with demister (19) and Adsorption layer (17), spray equipment is horizontally disposed in middle chamber, and bottom chamber is equipped with reactive absorption device, the reactive absorption device Including open-topped cylindrical reaction chamber (11), reaction chamber (11) bottom is equipped with smoke inlet (4) and lye import (8), The smoke inlet (4) is connected to smoke inlet (1), and the lye import (8) passes through liquid feeding pump (9) connection lye pond (10)；Instead It answers in room (11) and is equipped with rotary drum (6), the rotary drum (6) is a cylindrical body, and it is uniform, deep equality that spacing is provided on outer cylinder Groove, rotary drum (6) are bolted on a center bolt, and the center bolt connects motor (5), and pass through the motor (5) it is rotated to drive.

2. a kind of flue gas desulfurization denitration dust-removing device according to claim 1, it is characterised in that: the smoke inlet (1) Place is equipped with mixer (2), and the mixer (2) is equipped with ozone inlet, and the ozone inlet connects ozone generator (22), mixing It is additionally provided with spraying device (3) in device (2), spraying device (3) the connection hydrogen peroxide stores injected system；The hydrogen peroxide storage Injected system includes dioxygen water storage apparatus (21) and hydrogen peroxide activation device (20).

3. a kind of flue gas desulfurization denitration dust-removing device according to claim 1 or 2, it is characterised in that: the lower chambers It is externally connected to circulating pump (12), the circulating pump (12) connect with the spray equipment of middle chamber.

4. a kind of flue gas desulfurization denitration dust-removing device according to claim 3, it is characterised in that: the spray equipment setting There are at least one layer of spraying layer (14).

5. a kind of flue gas desulfurization denitration dust-removing device according to claim 4, it is characterised in that: the demister (19) Lower section is provided with blocking apparatus (16).

6. a kind of flue gas desulfurization denitration dust-removing device according to claim 5, it is characterised in that: in the adsorption layer (17) Equipped with desulphurization denitration adsorbent.