CN202224047U

CN202224047U - Boiler flue gas purifying equipment

Info

Publication number: CN202224047U
Application number: CN2011203388256U
Authority: CN
Inventors: 武军芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-09
Filing date: 2011-09-09
Publication date: 2012-05-23
Anticipated expiration: 2021-09-09

Abstract

Boiler flue gas purifying equipment comprises a heating tank, a water-washing, desulfurizing and dedusting device, a high-pressure sprinkling, decarbonizing and lifting tower, a flue gas purifying tower and a flue gas circulating pipeline, wherein the front end of the heating tank is connected with a boiler; the water-washing, desulfurizing and dedusting device is arranged behind the heating tank; the front end of the high-pressure sprinkling, decarbonizing and lifting tower is connected with the heating tank; the back end of the high-pressure sprinkling, decarbonizing and lifting tower is directly connected with the flue gas purifying tower; and the flue gas circulating pipeline is arranged among the heating tank, the water-washing, desulfurizing and dedusting device and the high-pressure sprinkling, decarbonizing and lifting tower. Dust and sulfur dioxide in boiler flue gas are purified by the water-washing, desulfurizing and dedusting device, the desulfurized and dedusted flue gas is heated and dried by the heating tank, carbon dioxide in the flue gas is absorbed by an organic amine solution, and high-pressure water mist is sprinkled by a saline sprinkling device to remove organic amines from the flue gas, so that the boiler flue gas is purified highly to come up to relevant emission standards.

Description

A kind of boiler flue gas purification equipment

Technical field

The utility model relates to a kind of cleaning equipment, is particularly useful for the purified treatment of black smoke, dust, sulfur dioxide and the carbon dioxide pollution thing of boiler emission, belongs to the isolation of purified technical field.

Background technology

Containing materials such as a large amount of black smokes, dust, sulfur dioxide and carbon dioxide in the boiler emission gas, is one of primary pollution source of atmosphere pollution, and in the today of advocating low-carbon environment-friendly, countries in the world are more and more stricter to the qualification of boiler emission gas; And existing cleaning equipment is paid attention to the processing to dust and sulfur dioxide mostly; It like the patent No. 200320127493.2 a kind of wind-suction type washing desulfurizing dust-collector; Its dust clearance rate can reach 99%, and flue gas desulphuization rate can reach 90%, but not good enough to the clean-up effect of black smoke and carbon dioxide; The boiler flue gas purification equipment that meets the zero graceful black smoke of Green, zero dust, zero sulfur dioxide, zero CO2 emission standard is the problem of current urgent need research.

The utility model content

The purpose of the utility model is the deficiency to prior art, and a kind of boiler flue gas purification equipment is provided, and it wafts through heating tank, washing desulfurizing dust-collector, high-pressure spraying decarburization and rises tower and column for smoke purification is realized the high purification to boiler emission gas.

The said problem of the utility model realizes with following technical proposals:

A kind of boiler flue gas purification equipment; Comprise in the formation that heating tank, washing desulfurizing dust-collector, high-pressure spraying decarburization waft and rise tower, column for smoke purification and flue gas circulation duct; Said heating tank front end is connected with boiler plant, and said washing desulfurizing dust-collector is arranged in after the heating tank, and said high-pressure spraying decarburization is waftd and risen the tower front end and link to each other with heating tank; The rear end directly connects column for smoke purification, and said flue gas circulation duct is arranged in heating tank, washing desulfurizing dust-collector, high-pressure spraying decarburization are waftd and risen between the tower.

Above-mentioned boiler flue gas purification equipment, said heating tank comprise gas communication pipeline two parts behind in line flue gas flowing lumen of boiler and the desulfurization and dedusting.The in line flue gas flowing lumen of said boiler is by the heating tank housing; Import A, outlet B, ash discharging hole and shell holder are formed; Said heating tank housing is a rectangular structure; Said import A and outlet B are arranged in heating tank housing top, and said ash discharging hole is arranged in heating tank housing bottom centre position, and said shell holder is arranged in the heating tank two bottom sides; The gas communication line arrangement is made up of one group of heat pipe, import C and outlet D in the middle of the in line flue gas flowing lumen of boiler behind the said desulfurization and dedusting, and said import C is connected with the heat pipe lower end, and said outlet D is connected with the heat pipe upper end.

Above-mentioned boiler flue gas purification equipment; Said high-pressure spraying decarburization is waftd and is risen that tower comprises ammoniacal liquor pond, water pump, spray equipment, wafing rises tower shell, spoiler, air blast, pressure-air import, gas approach E and exhanst gas outlet F; Said ammoniacal liquor pond is arranged in the bottom, and said water pump is deep in the ammoniacal liquor pond through pipeline one end, and the other end is connected with spray equipment; Said spray equipment is arranged in to waft and rises tower shell top; Said wafing rises tower shell bottom and places in the middle of the ammoniacal liquor pond, and pressure-air import and gas approach E are set in its side, within it the wall one group of spoiler that has through hole and guiding gutter of installation that tilts; At its top exhanst gas outlet F is set, said air blast is connected with the pressure-air import.

Above-mentioned boiler flue gas purification equipment; Said column for smoke purification comprises purifying column housing, gas approach G, curved surface shunting guide plate, brine sparge device, brine outlet and exhanst gas outlet H; Said purifying column housing bottom is provided with gas approach G; Said curved surface shunting guide plate places gas approach G top and is fixedly connected with purifying column housing bottom surface through support; Said brine sparge device is arranged in the purifying column case top, and said brine outlet is arranged in purifying column housing bottom side, and said exhanst gas outlet H is arranged on the purifying column top.

Above-mentioned boiler flue gas purification equipment, said flue gas circulation duct is provided with flange at connecting portion, and is connected with corresponding interface through securing member with each composition facility import department forced-and-induced draft fan being set, and the corner is rounding off.

Above-mentioned boiler flue gas purification equipment also is provided with the high pressure brine EGR in the formation, said high pressure brine EGR is connected with column for smoke purification.

The utility model carries out purified treatment through the washing desulfurizing dust-collector to dust in the boiler smoke and sulfur dioxide, and 99% dust and 90% sulfur dioxide are removed; The flue gas of the waste heat that utilizes the in line flue gas of boiler through heating tank again after to desulfurization and dedusting heats and dries processing, and here residual a part of dust can sink at the bottom of jar in the flue gas, thereby has realized dedusting again; The decarburization of flue gas entering high-pressure spraying utilizes organic amine solution that the carbon dioxide in the flue gas is absorbed, and sulfur dioxide residual in the flue gas is further purified after wafing and rising tower; Brine sparge device ejection high-pressure water mist in the column for smoke purification can be removed the organic amine material in the flue gas, can remove other impurity in the flue gas again; Flue gas is after treatment introduced boiler furnace again, and the carbon monoxide in the flue gas is further burnt.Through above measure, realized the high purification of boiler smoke, reached the zero graceful black smoke of Green, zero dust, zero sulfur dioxide, zero CO2 emission standard-required.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the heating tank structural representation;

Fig. 3 is that the high-pressure spraying decarburization is waftd and risen the tower structure sketch map;

Fig. 4 is the purification tower structure sketch map.

Each label is among the figure: 1, heating tank, 1-1, heating tank housing, 1-2, import A, 1-3, outlet B, 1-4, outlet D; 1-5, heat pipe, 1-6, import C, 1-7, ash discharging hole, 1-8, shell holder, 2, the washing desulfurizing dust-collector; 3, the high-pressure spraying decarburization is waftd and is risen tower, 3-1, ammoniacal liquor pond, and 3-2, water pump, 3-3, spray equipment, 3-4, wafing rises tower shell; 3-5, spoiler, 3-6, air blast, 3-7, pressure-air import, 3-8, gas approach E, 3-9, exhanst gas outlet F; 4, column for smoke purification, 4-1, purifying column housing, 4-2, gas approach G, 4-3, curved surface shunting guide plate, 4-4, brine sparge device; 4-5, brine outlet, 4-6, exhanst gas outlet H, 5, the flue gas circulation duct, 6, the high pressure brine EGR, 7, boiler.

The specific embodiment

Referring to Fig. 1; During constituting, the utility model comprises that heating tank 1, washing desulfurizing dust-collector 2, high-pressure spraying decarburization waft and rise tower 3, column for smoke purification 4 and flue gas circulation duct 5; Said heating tank 1 front end is connected with boiler 7; Said washing desulfurizing dust-collector 2 is arranged in after the heating tank 1; Said high-pressure spraying decarburization is waftd and is risen tower 3 front ends and link to each other with heating tank 1, and the rear end directly connects column for smoke purification 4, and said flue gas circulation duct 5 is arranged in heating tank 1, washing desulfurizing dust-collector 2, high-pressure spraying decarburization and wafts and rise between the tower 3.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model operation principle is following: the flue gas of from boiler 7, discharging gets into heating tank 1 through flue gas circulation duct 5 and import A 1-2 under the effect of forced-and-induced draft fan.Flue gas is full of heating tube tank shell 1-1 after outlet B 1-3 and flue gas circulation duct 5 get into washing desulfurizing dust-collector 2; After this carried out the removing of twice dust removal process and sulfur dioxide, flue gas was got among the heat pipe 1-5 in the heating tank 1 with import C 1-6 by flue gas circulation duct 5.Flue gas behind the desulfurization and dedusting carries out heat exchange at this and the in line flue gas of boiler that is full of heating tank housing 1-1, makes the flue gas behind the desulfurization and dedusting be heated oven dry.In the heat exchanging process, a part of dust in the flue gas behind in line flue gas of boiler and the desulfurization and dedusting can sink at the bottom of the jar (can regularly through the ash discharging hole cleaning), realizes dedusting for the third time.Flue gas among the heat pipe 1-5 wafts through the decarburization of gas approach E 3-8 entering high-pressure spraying and rises tower 3 subsequently, and hot flue gas penetrates in the ammoniacal liquor pond under the forced-and-induced draft fan effect, the residual dust in the flue gas is carried out the 4th time remove; Carbon dioxide in the flue gas and the organic amine mixed solution among the 3-1 of ammoniacal liquor pond carry out abundant chemical reaction simultaneously, thereby remove the most carbon dioxide in the flue gas; The pressure-air of filling through air blast 3-6 and the pressure-air import 3-7 flue gas that rises among the tower shell 3-4 that promotes to waft upwards floats liter; Spray the high-pressure water mist that contains the organic amine material through water pump 3-2 and high-pressure spraying device 3-3, realize thorough removing carbon dioxide residual in the flue gas, sulfur dioxide and dust; The one group of spoiler reducing smoke that has through hole and guiding gutter that rises on the tower shell 3-4 inwall that tilts to be installed in to waft floats the water smoke that lifting speed also refluxes and condenses, and flue gas and organic amine material are fully reacted, and further improves de-carbon, desulfurized effect.Flue gas after the decarburization gets into column for smoke purification 4 through exhanst gas outlet F 3-9; The brine sparge device ejection that is positioned at gas cleaning tower shell 4-1 top contains the high-pressure water mist of certain proportion salt solution; Organic amine material in the flue gas is thoroughly removed; Remove other impurity in the flue gas simultaneously; The curved surface shunting guide plate 4-3 that is positioned at the purifying column bottom makes the flue gas that gets into column for smoke purification evenly disperse to rise on the one hand, and the water smoke water conservancy diversion to condensing makes it get back to the high pressure brine EGR through brine outlet 4-5 on the other hand.Flue gas through purified treatment is introduced boiler furnace again, and the carbon monoxide in the flue gas is further burnt.So far boiler smoke has been reached the zero graceful black smoke of Green, zero dust, zero sulfur dioxide, zero CO2 emission standard-required by high purification.

Claims

1. boiler flue gas purification equipment; It is characterized in that; Comprise in the formation that heating tank (1), washing desulfurizing dust-collector (2), high-pressure spraying decarburization waft and rise tower (3), column for smoke purification (4) and flue gas circulation duct (5); Said heating tank (1) front end is connected with boiler (7), and said washing desulfurizing dust-collector (2) is arranged in heating tank (1) afterwards, and said high-pressure spraying decarburization is waftd and risen tower (3) front end and link to each other with heating tank (1); The rear end connects column for smoke purification (4), and said flue gas circulation duct (5) is arranged in heating tank (1), washing desulfurizing dust-collector (2), high-pressure spraying decarburization and wafts and rise between the tower (3).

2. boiler flue gas purification equipment according to claim 1; It is characterized in that; Said heating tank (1) comprises gas communication pipeline two parts behind in line flue gas flowing lumen of boiler and the desulfurization and dedusting, and the in line flue gas flowing lumen of said boiler is by heating tank housing (1-1), import A (1-2), outlet B (1-3), ash discharging hole (1-7) and shell holder (1-8) composition; Said heating tank housing (1-1) is a rectangular structure; Said import A (1-2) and outlet B (1-3) are arranged in heating tank housing (1-1) top, and said ash discharging hole (1-7) is arranged in centre position, heating tank housing (1-1) bottom, and said shell holder (1-8) is arranged in the heating tank two bottom sides; The gas communication pipe is arranged in the middle of the in line flue gas flowing lumen of boiler behind the said desulfurization and dedusting; Be made up of one group of heat pipe (1-5), import C (1-6) and outlet D (1-4), said import C (1-6) is connected with the heat pipe lower end, and said outlet D (1-4) is connected with the heat pipe upper end.

3. boiler flue gas purification equipment according to claim 1 and 2; It is characterized in that; Said high-pressure spraying decarburization is waftd and is risen that tower (3) comprises ammoniacal liquor pond (3-1), water pump (3-2), spray equipment (3-3), wafing rises tower shell (3-4), spoiler (3-5), air blast (3-6), pressure-air import (3-7), gas approach E (3-8) and exhanst gas outlet F (3-9); Said ammoniacal liquor pond (3-1) is arranged in the bottom; Said water pump (3-2) is deep in the ammoniacal liquor pond (3-1) through pipeline one end; The other end is connected with spray equipment (3-3), and said spray equipment (3-3) is arranged in to waft and rises tower shell (3-4) top, and said wafing rises tower shell bottom and place in the middle of the ammoniacal liquor pond (3-1); Pressure-air import (3-7) and gas approach E (3-8) are set in its side; Wall tilts one group of spoiler (3-5) that has through hole and guiding gutter is installed within it, and exhanst gas outlet F (3-9) is set at its top, and said air blast (3-6) is connected with pressure-air import (3-7).

4. boiler flue gas purification equipment according to claim 3; It is characterized in that; Said column for smoke purification (4) comprises purifying column housing (4-1), gas approach G (4-2), curved surface shunting guide plate (4-3), brine sparge device (4-4), brine outlet (4-5) and exhanst gas outlet H (4-6); Said purifying column housing (4-1) bottom is provided with gas approach G (4-2); Said curved surface shunting guide plate (4-3) places gas approach G (4-2) top and is fixedly connected with purifying column housing bottom surface through support; Said brine sparge device (4-4) is arranged in the purifying column case top, and said brine outlet (4-5) is arranged in purifying column housing bottom side, and said exhanst gas outlet H (4-6) is arranged on the purifying column top.

5. boiler flue gas purification equipment according to claim 4; It is characterized in that said flue gas circulation duct (5) is provided with flange with each composition facility import department forced-and-induced draft fan being set in the junction; And be connected with corresponding interface through securing member, the corner is rounding off.

6. boiler flue gas purification equipment according to claim 5 is characterized in that, also is provided with high pressure brine EGR (6) in the formation, and said high pressure brine EGR (6) is connected with column for smoke purification (5).