CN203370451U - Two-stage wet-type efficient desulfurization and dust collection device - Google Patents

Two-stage wet-type efficient desulfurization and dust collection device Download PDF

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Publication number
CN203370451U
CN203370451U CN201320426062.XU CN201320426062U CN203370451U CN 203370451 U CN203370451 U CN 203370451U CN 201320426062 U CN201320426062 U CN 201320426062U CN 203370451 U CN203370451 U CN 203370451U
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type
dust
desulfurization
wet
dust collection
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Inventor
廖厚伍
袁春琼
彭勇强
卢鑫
黄爱良
曹国华
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Hunan Zhengming environmental Limited by Share Ltd
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HUNAN ZHENGMING ENVIRONMENTAL ENGINEERING Co Ltd
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Abstract

The utility model discloses a two-stage wet-type efficient desulfurization and dust collection device. The device comprises a first stage of double-elbow type high-intensity turbulent channel wet-type desulfurization and dust collection device and a second stage of multi-spraying wet-type desulfurization and dust collection device which are mutually communicated, wherein the first stage of double-elbow type high-intensity turbulent channel wet-type desulfurization and dust collection device comprises a double-elbow type high-intensity turbulent channel and a desulfurization liquid spraying device; the second stage of multi-spraying wet-type desulfurization and dust collection device comprises a tower body, wherein a water tank, a mist spraying layer and a dehydrating mist removing device are sequentially formed in the tower body from bottom to top; the two-stage wet-type efficient desulfurization and dust collection device comprises two stages of desulfurization and dust collection devices connected in series, the desulfurization efficiency and the dust collection efficiency are the sum of those of the two desulfurization and dust collection devices, therefore, the dust collection problem of high-concentration smoke and dust of a circulating fluidized bed boiler and a pulverized coal fired boiler can be solved, and meanwhile, the high-difficulty flue gas desulfurization problem in burning high-sulfur coals and ultra high-sulfur coals slime can also be solved, and further, the emission of pollutants of high-concentration smoke and dust, sulfur dioxide and the like can reach the latest environmental protection standard.

Description

A kind of two-stage Wet-type high-efficient desulfation dust-extraction device
Technical field
The utility model belongs to the technical field of waste gas treatment in environment-friendly engineering, is specifically related to a kind of two-stage Wet-type high-efficient desulfation dust-extraction device be useful in Industrial Boiler, boiler of power plant and the improvement of various furnace flue gas.
Background technology
Along with social progress and expanding economy, various station boilers, Industrial Stoves, electric arc furnaces, particularly coal-burned industrial boiler get more and more, correspondingly, environmental pressure is increased the weight of to consequently atmosphere pollution to be on the rise, for this reason, various environmental law Laws & Regulations are also put into effect gradually, and present more and more harsh trend, to adapt to day by day rugged environment, prevent and treat demand.
Current, middle-size and small-size power plant boiler, mediumand smallscale industrial boilers and various kiln have a large capacity and a wide range, under the situation of more and more harsh environmental law Laws & Regulations, must seek and develop new equipment and process, reach new environmental emission standard to guarantee that it is produced comprehensively, at present to being divided into following two classes the improvement technology of flue gas, flue dust, dust and sulfur dioxide:
One class: big-and-middle-sized power plant boiler flue gas is first through electrostatic precipitation, bag-type dust or the dedusting of electricity bag, then carries out wet process of FGD, or first bag-type dust then adopts semi-dry desulphurization, and this type of effect is generally better;
Two classes: middle-size and small-size power plant boiler, particularly mediumand smallscale industrial boilers and Industrial Stoves and electric arc furnaces, because being subject to investment limitation or place limits, directly by dedusting and desulphurization integrated equipment, administered, but for the high-concentration fume dust content 20000~60000mg/m of CFBB or pulverized-coal fired boiler 3and the highly difficult flue gas desulfurization situation of burning high sulfur coal or ultra-high-sulfur(UHS) coal slime, after general dedusting and desulphurization integrated equipment is administered, do not reach environmental emission standard, for present stricter up-to-date environmental emission standard, especially can not be up to standard, Given this, the researcher of our company is in conjunction with the work experience in year more than working desulfurization and dedusting work eleven, and the practice experience of 200 multinomial desulfurization and dedusting engineerings of hosting or participation, further use for reference international and domestic all kinds of waste gas pollution control and treatment technology, and do one's utmost to design a kind of two-stage Wet-type high-efficient desulfation dust-extraction device.
The utility model content
The problem existed for prior art, the purpose of this utility model is to provide a kind of two-stage Wet-type high-efficient desulfation dust-extraction device, it is in series by the two-step desulfurization dust arrester, desulfuration efficiency and efficiency of dust collection are the summations of two cover desulfation dust-extraction devices, thereby, it can solve the dust removal problem of the high concentration flue dust of CFBB and pulverized-coal fired boiler, and the highly difficult flue gas desulfurization problem of burning high sulfur coal and extra-high-speed sulphur coal slime, and then, make the discharge of the pollutants such as flue dust to high concentration, sulfur dioxide reach up-to-date environmental protection standard.
A kind of two-stage Wet-type high-efficient desulfation dust-extraction device that the utility model provides, it comprises that the two curved strong turbulent flow passageway wet desulfurization dust-removing devices of the first order and the second level arranged that is interconnected sprays wet desulfurization dust-removing device more, wherein, the two curved strong turbulent flow passageway wet desulfurization dust-removing devices of the described first order comprise two curved strong turbulent flow passageway and doctor solution spray equipment, wherein, described two curved strong turbulent flow passageway comprises and is the first bend that is bent downwardly setting, and be the second bend that is bent upwards setting, the mouth spray of described doctor solution spray equipment is located in described two curved strong turbulent flow passageway, and be positioned at the intersection of described the first bend and described the second bend, the described second level sprays wet desulfurization dust-removing device more and comprises tower body, be disposed with from bottom to top tank, spraying layer and dehydrating demisting device in described tower body, be provided with into mouth and enter for described the second bend in the sidewall of described tower body, describedly advance mouth and be located between described spraying layer and described tank.
Further, inboard and the outside of corresponding described two curved strong turbulent flow passageway are respectively equipped with the described doctor solution spray equipment of a row;
Further, the number of plies of described spraying layer is multilayer;
Further, the number of plies of described spraying layer is three layers;
Further, described spraying layer comprises the atomizing inlet pipe and is installed on the nozzle on described atomizing inlet pipe, and the spray angle of described nozzle is 90 to 120 degree;
Further, described dehydrating demisting device is rotational flow plate defroster or baffle type mist eliminator.
Based on disclosing of above technical scheme, the utility model possesses following beneficial effect:
A kind of two-stage Wet-type high-efficient desulfation dust-extraction device that the utility model provides, it comprises that the two curved strong turbulent flow passageway wet desulfurization dust-removing devices of the first order and the second level arranged that is interconnected sprays wet desulfurization dust-removing device more, wherein, the two curved strong turbulent flow passageway wet desulfurization dust-removing devices of the described first order comprise two curved strong turbulent flow passageway and doctor solution spray equipment, wherein, described two curved strong turbulent flow passageway comprises and is the first bend that is bent downwardly setting, and be the second bend that is bent upwards setting, the mouth spray of described doctor solution spray equipment is located in described two curved strong turbulent flow passageway, and be positioned at the intersection of described the first bend and described the second bend, the described second level sprays wet desulfurization dust-removing device more and comprises tower body, be disposed with from bottom to top tank in described tower body, spraying layer and dehydrating demisting device, be provided with into mouth and enter for described the second bend in the sidewall of described tower body, describedly advance mouth and be located between described spraying layer and described tank, described two-stage Wet-type high-efficient desulfation dust-extraction device is in series by the two-step desulfurization dust arrester, desulfuration efficiency and efficiency of dust collection are the summations of two cover desulfation dust-extraction devices, thereby, it can solve the dust removal problem of the high concentration flue dust of CFBB and pulverized-coal fired boiler, and the highly difficult flue gas desulfurization problem of burning high sulfur coal and extra-high-speed sulphur coal slime, and then, make the discharge of the pollutants such as flue dust to high concentration, sulfur dioxide reach up-to-date environmental protection standard.
The accompanying drawing explanation
The structural representation of a kind of two-stage Wet-type high-efficient desulfation dust-extraction device that Fig. 1 provides for the utility model.
The drawing reference numeral explanation
Two curved strong turbulent flow passageway 1
The first bend 11
The second bend 12
Doctor solution spray equipment 2
Tower body 3
Tank 4
Spraying layer 5
Atomizing inlet pipe 51
Nozzle 52
Dehydrating demisting device 6
The specific embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment:
The problem existed for prior art, the purpose of this utility model is to provide a kind of two-stage Wet-type high-efficient desulfation dust-extraction device, it is in series by the two-step desulfurization dust arrester, desulfuration efficiency and efficiency of dust collection are the summations of two cover desulfation dust-extraction devices, thereby, it can solve the dust removal problem of the high concentration flue dust of CFBB and pulverized-coal fired boiler, and the highly difficult flue gas desulfurization problem of burning high sulfur coal and extra-high-speed sulphur coal slime, and then, make the discharge of the pollutants such as flue dust to high concentration, sulfur dioxide reach up-to-date environmental protection standard.
Refer to Fig. 1, a kind of two-stage Wet-type high-efficient desulfation dust-extraction device (not label) that the utility model provides, it comprises that the two curved strong turbulent flow passageway wet desulfurization dust-removing devices (not label) of the first order and the second level arranged that is interconnected sprays wet desulfurization dust-removing device (not label) more, wherein, the two curved strong turbulent flow passageway wet desulfurization dust-removing devices of the described first order comprise two curved strong turbulent flow passageway 1 and doctor solution spray equipment 2, described two curved strong turbulent flow passageway 1 comprises and is the first bend 11 that is bent downwardly setting, and be the second bend 12 that is bent upwards setting, the mouth spray of described doctor solution spray equipment 2 is located in described two curved strong turbulent flow passageway 1, and be positioned at the intersection of described the first bend 11 and described the second bend 12, in the present embodiment, inboard and the outside of corresponding described two curved strong turbulent flow passageway 1 are respectively equipped with the described doctor solution spray equipment 2 of a row.Doctor solution flow velocity in described two curved strong turbulent flow passageway 1 is higher, and described two curved strong turbulent flow passageway 1 is had from washing away and self-cleaning function, flue gas flow rate in described two curved strong turbulent flow passageway 1 is designed to 20 to 30m/s, turbulence effect is strong, the inboard flue gas of described the first bend 11 becomes the outside while arriving described the second bend 12, make turbulent flow evenly, adopt described two curved strong turbulent flow passageway 1 arrange and make stroke longer, the reaction time of carrying out desulfurization and dedusting is also longer.
Refer to Fig. 1, the described second level sprays wet desulfurization dust-removing device more and comprises tower body 3, be disposed with from bottom to top tank 4 in described tower body 3, spraying layer 5 and dehydrating demisting device 6, described dehydrating demisting device 6 can be rotational flow plate defroster or baffle type mist eliminator (baffle type mist eliminator can be designed to Flat defroster or ridge type demister), be provided with into mouth (not label) and enter for described the second bend 12 in the sidewall of described tower body 3, describedly advance mouth and be located between described spraying layer 5 and described tank 4, the number of plies of described spraying layer 5 is multilayer, and it is different and different that the concrete number of plies is looked the practical sulphur removal dust removing effects, in the present embodiment, the number of plies of described spraying layer 5 is three layers.Described spraying layer 5 comprises atomizing inlet pipe 51 and is installed on the nozzle 52 on described atomizing inlet pipe 51, and in the present embodiment, the spray angle of described nozzle 52 is 90 to 120 degree.
Based on disclosing of above technical scheme, the utility model possesses following beneficial effect:
A kind of two-stage Wet-type high-efficient desulfation dust-extraction device that the utility model provides, it comprises that the two curved strong turbulent flow passageway wet desulfurization dust-removing devices of the first order and the second level arranged that is interconnected sprays wet desulfurization dust-removing device more, wherein, the two curved strong turbulent flow passageway wet desulfurization dust-removing devices of the described first order comprise two curved strong turbulent flow passageway 1 and doctor solution spray equipment 2, wherein, described two curved strong turbulent flow passageway 1 comprises and is the first bend 11 that is bent downwardly setting, and be the second bend 12 that is bent upwards setting, the mouth spray of described doctor solution spray equipment 2 is located in described two curved strong turbulent flow passageway 1, and be positioned at the intersection of described the first bend 11 and described the second bend 12, the described second level sprays wet desulfurization dust-removing device more and comprises tower body 3, be disposed with from bottom to top tank 4 in described tower body 3, spraying layer 5 and dehydrating demisting device 6, be provided with into mouth and enter for described the second bend 12 in the sidewall of described tower body 3, describedly advance mouth and be located between described spraying layer 5 and described tank 4, further, corresponding described dehydrating demisting device 6 is provided with spray head cleaning device, it is in series described two-stage Wet-type high-efficient desulfation dust-extraction device by the two-step desulfurization dust arrester, desulfuration efficiency and efficiency of dust collection are the summations of two cover desulfation dust-extraction devices, thereby, it can solve the dust removal problem of the high concentration flue dust of CFBB and pulverized-coal fired boiler, and the highly difficult flue gas desulfurization problem of burning high sulfur coal and extra-high-speed sulphur coal slime, and then, make the discharge of the pollutants such as flue dust to high concentration, sulfur dioxide reach up-to-date environmental protection standard.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obvious realization of the present utility model is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present utility model and technical scheme to carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all in protection domain of the present utility model.

Claims (6)

1. a two-stage Wet-type high-efficient desulfation dust-extraction device, it is characterized in that, it comprises that the two curved strong turbulent flow passageway wet desulfurization dust-removing devices of the first order and the second level arranged that is interconnected sprays wet desulfurization dust-removing device more, wherein, the two curved strong turbulent flow passageway wet desulfurization dust-removing devices of the described first order comprise two curved strong turbulent flow passageway and doctor solution spray equipment, wherein
Described two curved strong turbulent flow passageway comprises and is the first bend that is bent downwardly setting and is the second bend that is bent upwards setting, the mouth spray of described doctor solution spray equipment is located in described two curved strong turbulent flow passageway, and is positioned at the intersection of described the first bend and described the second bend;
The described second level sprays wet desulfurization dust-removing device more and comprises tower body, be disposed with from bottom to top tank, spraying layer and dehydrating demisting device in described tower body, be provided with into mouth and enter for described the second bend in the sidewall of described tower body, describedly advance mouth and be located between described spraying layer and described tank.
2. two-stage Wet-type high-efficient desulfation dust-extraction device according to claim 1, is characterized in that, inboard and the outside of corresponding described two curved strong turbulent flow passageway are respectively equipped with the described doctor solution spray equipment of a row.
3. two-stage Wet-type high-efficient desulfation dust-extraction device according to claim 1, is characterized in that, the number of plies of described spraying layer is multilayer.
4. two-stage Wet-type high-efficient desulfation dust-extraction device according to claim 3, is characterized in that, the number of plies of described spraying layer is three layers.
5. two-stage Wet-type high-efficient desulfation dust-extraction device according to claim 1, is characterized in that, described spraying layer comprises the atomizing inlet pipe and be installed on the nozzle on described atomizing inlet pipe, and the spray angle of described nozzle is 90 to 120 degree.
6. two-stage Wet-type high-efficient desulfation dust-extraction device according to claim 1, is characterized in that, described dehydrating demisting device is rotational flow plate defroster or baffle type mist eliminator.
CN201320426062.XU 2013-07-17 2013-07-17 Two-stage wet-type efficient desulfurization and dust collection device Active CN203370451U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105920961A (en) * 2016-06-16 2016-09-07 无锡锡能锅炉有限公司 Pulverized coal fired boiler chimney dedusting device
CN106121712A (en) * 2016-08-16 2016-11-16 国电建投内蒙古能源有限公司 Colliery horizontal tunneling boring high effect dust cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105920961A (en) * 2016-06-16 2016-09-07 无锡锡能锅炉有限公司 Pulverized coal fired boiler chimney dedusting device
CN106121712A (en) * 2016-08-16 2016-11-16 国电建投内蒙古能源有限公司 Colliery horizontal tunneling boring high effect dust cleaner
CN106121712B (en) * 2016-08-16 2018-08-14 国电建投内蒙古能源有限公司 Coal mine horizontal tunneling boring high effect dust cleaner

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Address after: No. A2, No. A2, Jinhai Road, No. 128, Jinhai Road, Changsha City, Changsha

Patentee after: Hunan Zhengming environmental Limited by Share Ltd

Address before: 410016 Hunan province Changsha Furong district ancient road No. 129 Hunan Keller park two building 7 room 1301

Patentee before: HUNAN ZHENGMING ENVIRONMENTAL ENGINEERING CO., LTD.