CN209752609U - High-efficient desulfurization dust removal integrated device - Google Patents
High-efficient desulfurization dust removal integrated device Download PDFInfo
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- CN209752609U CN209752609U CN201822102298.3U CN201822102298U CN209752609U CN 209752609 U CN209752609 U CN 209752609U CN 201822102298 U CN201822102298 U CN 201822102298U CN 209752609 U CN209752609 U CN 209752609U
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Abstract
The utility model discloses a high-efficiency desulfurization and dust removal integrated device, which comprises a slurry tank (1), a desulfurization unit outer cylinder (7), a flue gas collecting pipe (4), a tubular dust and mist eliminator (5), a Y-shaped impeller (2), a slurry supply pipe (3), a Venturi (8) and a raw flue gas inlet (9) which are sequentially communicated; the utility model provides a pair of high-efficient desulfurization dust removal integrated device, the device is high-efficient desulfurization is realized to half section down, high-efficient dust removal defogging is realized to the first section, so the desulfurization is removed dust and can be accomplished in one set of device, need not the thick liquid nozzle, reach very high gas-liquid mass transfer rate with the fierce torrent of thick liquid on the impeller, and simultaneously, the device is really just a miniature absorption tower, can be according to the size of flue gas volumn, nimble its device quantity of arrangement and the mode of arranging, can be according to the environment in actual place, in accordance with the most simple and convenient construction scheme of adoption of local control.
Description
Technical Field
The utility model relates to an energy-concerving and environment-protective technical field especially relates to a high-efficient desulfurization dust removal integrated device.
Background
With the enhancement of environmental awareness, the atmospheric pollution control, the water environment treatment and the soil treatment realize full coverage, haze treatment, river growth in actual implementation, zero tolerance to environmental illegal behaviors and the like in local government work reports, and become environmental protection hot words of two parties in 2017. Air treatment targets are determined everywhere, and practical promotion of treatment measures is approached. In the face of haze treatment pressure in Jingjin Ji area, Beijing proposed that in 2017, the annual average concentration of fine particulate matters is struggled to be controlled to be about 60 micrograms/cubic meter. The Tianjin government work report provides that 7 coal-electric units and 380 coal-fired boilers need to be shut down instead of turning off and eliminating 100 laggard enterprises, the reduction of the average PM concentration in 2.5 years is better than that in the last year, and the national 'ten atmosphere' target task is completed.
by the end of 2017, large-scale thermal power projects are basically finished, and medium and small boilers, steel making, aluminum smelting, ships and other chemical and non-electric factories face environmental control pressure and have to be discharged and treated, the small projects are large in quantity and wide in range, the smoke discharge amount of a single project is small, and a large improvement space is provided in the aspect of smoke treatment. The existing traditional wet absorption tower has the defects of large occupied area, multiple devices, high operation cost and the like, and cannot bear the economic or field aspect for small projects. On one hand, in the face of severe environmental situation, the flue gas needs to be intensively treated, and on the other hand, a simple flue gas treatment scheme with low cost is lacked.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a high-efficiency desulfurization and dust removal integrated device, which comprises a slurry tank (1), n desulfurization unit outer cylinders (7), a flue gas collecting pipe (4) and a tubular dust and mist eliminator (5) which are sequentially communicated, and m Y-shaped impellers (2), n slurry supply pipes (3), m venturis (8) and an original flue gas inlet (9), wherein m and n are both more than or equal to 2; y type impeller (2) are installed in desulfurization unit urceolus (7), confession thick liquid pipe (3) set up in desulfurization unit urceolus (7) and with urceolus (7) are seamless zonulae occludens, supply thick liquid pipe with Y type impeller (2) axis is parallel, tubular dust removal defroster (5) are equipped with defroster wash pipe (6), desulfurization unit urceolus (7) are the long straight urceolus of a plurality of little nipple joints connections, venturi (8) are arranged Y type impeller (2) top, former flue gas entry (9) set up in thick liquid case (1) upper portion.
And the outer cylinder (7) of the desulfurization unit is connected with the top cover of the slurry tank (1) by a flange. The Y-shaped impeller (2) is a fixed impeller with a rotary vane. The distance between the pipe orifice of the pulp supply pipe (3) and the central axis is 5-30 cm. And the outer cylinder (7) of the desulfurization unit is connected with the flue gas collecting pipe (4), and the flue gas collecting pipe (4) is connected with the tubular dust and mist remover (5) through bolts and flanges. The flue gas collecting pipe (4) is a non-standard three-way pipe. The diameter of the outer cylinder (7) of the desulfurization unit is 0.3-3 m. The outer cylinder (7) of the desulfurization unit is connected in a buckling mode, and the joint is welded by a plastic welding rod. The raw flue gas inlet (9) is at least 0.5m higher than the highest liquid level of the slurry tank.
the utility model provides a pair of high-efficient desulfurization dust removal integrated device, gas-liquid mass transfer rate is high, and desulfurization dust removal effect is good, and the running resistance is little, simple structure, the installation and the maintenance of being convenient for, difficult jam, the reliability is high. The cost is low, the running cost is low, and the integrated device for desulfurization and dust removal has high cost performance.
Drawings
FIG. 1 is a diagram: the utility model discloses a front view of a high-efficiency desulfurization and dust removal integrated device;
in the figure: 1-a slurry tank, 2-Y-shaped impellers, 3-a slurry supply pipe, 4-a flue gas collecting pipe, 5-a tubular dust and mist removing device, 6-a flushing water pipe, 7-a desulfurization unit outer cylinder, 8-a venturi and 9-a raw flue gas inlet;
FIG. 2 is a diagram of: the utility model discloses high-efficient desulfurization dust removal integrated device's import and export SO2Comparing the images;
FIG. 3 is a diagram of: the utility model discloses a desulfurization efficiency chart of a high-efficiency desulfurization and dust removal integrated device;
FIG. 4 is a diagram of: the utility model discloses a side view of the high-efficiency desulfurization dust-removal integrated device;
FIG. 5 is a diagram: the utility model discloses high-efficient desulfurization dust removal integrated device's Y type impeller sketch map.
Detailed Description
The following detailed description of the embodiments of the integrated desulfurization and dust removal device will be made with reference to the accompanying drawings, which are provided for illustration only and are not intended to limit the scope of the invention, and the modifications of the equivalent forms of the invention by those skilled in the art will fall within the scope defined by the appended claims.
As shown in figure 1, the utility model provides a high-efficient desulfurization dust removal integrated device, in this embodiment, single set of the device includes thick liquid case (1), 6Y type impeller (2), 2 confession thick liquid pipe (3), 1 flue gas collection pipe (4), 1 tubular dust removal defroster (5), 1 washing water pipe (6), 2 desulfurization unit urceolus (7), 6 venturi (8) and former flue gas entry (9). The slurry box (1), the Y-shaped impeller (2), the slurry supply pipe (3), the outer cylinder (7) of the desulfurization unit and the Venturi (8) form a desulfurization unit. This device need do waterproof sealing treatment, avoids leaking thick liquid and runs thick liquid.
The slurry tank (1) is positioned below the outer cylinder (7) of the desulfurization unit, and a pressure sensor is arranged above the liquid level of the slurry tank. The outer cylinder (7) of the desulfurization unit is arranged on the top cover of the slurry tank (1), and the connection mode of the outer cylinder and the slurry tank (1) can adopt flange connection or other structures, such as firm splicing modes of welding, riveting and the like.
The Y-shaped impeller (2) is a fixed impeller with blades and arranged in the outer cylinder (7) of the desulfurization unit, and comprises an impeller center and blades, wherein the impeller center is a closed area, the blades are uniformly distributed around the central closed area (see figure 5), the number of the impellers can be increased or reduced according to the efficiency requirement, and in the embodiment, 3Y-shaped impellers (2) are arranged in each outer cylinder (7) of the desulfurization unit. And sealing the outer edge of the impeller and the outer cylinder of the desulfurization unit.
Confession thick liquid pipe (3) are seamless zonulae occludens with desulfurization unit urceolus (7), supply thick liquid pipe (3) to get into desulfurization unit urceolus (7) back, insert along Y type impeller (2) axis, and the mouth of pipe is 5 ~ 30cm apart from the axis.
The flue gas collecting pipe (4) is a non-standard three-way pipe, three pipe orifices of the flue gas collecting pipe are respectively connected with two outer cylinders of the desulfurization unit and a tubular dust and mist remover, namely the flue gas collecting pipe is connected with the tubular dust and mist remover after the two outer cylinders of the desulfurization unit are collected by the flue gas collecting pipe. The design can reduce the quantity of tubular dust and mist eliminator, and the whole structure is simplified. Between desulfurization unit urceolus and the flue gas collection pipe, all adopt bolt flange to connect between flue gas collection pipe and the tubular dust removal defroster, flange and flange lug connection need place the rubber pad. And a pressure sensor is arranged on the smoke collecting pipe (4).
The tubular dust and mist removing device (5) is a proprietary mature product of the company, and the technical characteristics thereof can be found in Chinese patent CN201410642040.6 "a deep dust and mist removing device". The tubular dust and mist removal device (5) is provided with a mist removal device flushing water pipe (6).
Desulfurization unit urceolus (7) are a long straight urceolus that a plurality of little nipple joints concatenation formed, adopt the buckle mode to connect between the little nipple joint, and the seam adopts the welding of plastics welding rod. And (4) performing sealing and waterproof treatment on the joint after splicing, wherein the diameter of the outer cylinder of the desulfurization unit is 0.3-3 m. The venturi (8) is arranged above each Y-shaped impeller (2), and the position of the original flue gas inlet (9) is at least 0.5m higher than the highest liquid level of the slurry tank (1).
the operating smoke amount of a single set of device is 9000-12000 m3/h, and during actual use, the number and the arrangement mode of the device are determined according to the total smoke amount. Fig. 4 is an example of the simultaneous use of three sets of devices according to the present invention. Flue gas gets into the thick liquid case from former flue gas entry (9), then equally divide by lower supreme and get into each desulfurization unit, joins through flue gas collection pipe (4) and gets into tubular dust removal defroster (5), and at last after the dust removal defogging, the clean flue is joined into by defroster upper portion.
Specifically, the utility model discloses a high-efficient desulfurization dust removal integrated device, the thick liquid is by supplying thick liquid pipe flow to topmost layer Y type impeller center, former flue gas is by thick liquid case liquid level top entering system simultaneously, and get into the desulfurization unit of this device from bottom to top, when through the Y type, it is rotatory to produce high-speed centrifugation, with the thick liquid contact by central inflow, partial flue gas flow direction blade top center joins, all the other partial flue gases will be held and broken up into the liquid drop and carry the high-speed centrifugation rotation of production equidirectional production that makes it by the thick liquid that the center flows in, and upwards climb, because the top venturi makes the internal diameter narrow, rotatory thick liquid drop receives the venturi inclined plane to obstruct and collects its water conservancy diversion to the center, meet with central from bottom to top flue gas, and blow up and fall back the impeller by it. When the pressure below the upper impeller and the gravity of the slurry above the upper impeller reach a dynamic balance, the slurry flowing in the slurry supply pipe mixes and renews the slurry of the upper impeller, and the redundant slurry falls onto the lower impeller from gaps among blades of the impellers, and the turbulent flow process is formed on the upper impeller.
the former flue gas passes through this device desulfurization unit after, collects the back with the flue gas of two desulfurization units by the flue gas collection pipe, gets into the dust removal unit of this device, tubular dust removal defroster promptly, can carry out the desorption to micronic dust and liquid drop that the flue gas carried after the desulfurization to realize the purpose of high-efficient desulfurization dust removal integration.
The absorbent used in the device can be Na2CO3、NaOH、Ca(OH)2The performance of the apparatus is explained below by using a conventional alkaline absorbent (note: the amount of flue gas is 9000 m)3And h, correspondingly assembling three sets of devices as shown in figure 1):
As shown in FIG. 2, the sulfur content was 6500mg/Nm3Under the condition of high-sulfur flue gas, the lowest flue gas can be removed to 20mg/m by using the device3Left and right. Specifically, the method comprises the following steps: when the smoke amount reaches 7500m3At the time of/h, a liquid holding layer begins to form on the Y-shaped impeller, the desulfurization efficiency rapidly rises, and the outlet sulfur content rapidly decreases to 200mg/m3About, when the smoke volume is from 7500m3Increase/h to 9000m3The desulfurization resistance and the desulfurization efficiency are increased in a certain linear relation (as shown in figure 3), the sulfur content of the clean flue gas is reduced in a certain linear relation, and when the flue gas volume reaches 9000-9500 m3At the hour, the thickness of the liquid holding layer is rapidly increased, the fluctuation of a resistance curve and an efficiency curve is large and tends to the highest value of the efficiency of the device, and when the smoke volume exceeds 9500m3H, and when the sulfur content is further increased, the desulfurization resistance is kept about 3.5KPa, the desulfurization efficiency is kept about 99.7 percent, and the outlet SO2Keeping the concentration at 20-25 mg/m3. As the resistance of the system is gradually increased along with the increase of the smoke amount, in combination with the resistance curve in (figure 3), under the set of set parameters, the recommended operation smoke interval is 8500-9000 m3In the range, the desulfurization efficiency is 98-99.5%, and the resistance is 1.5-2.5 KPa.
In addition, the dust removal effect is as follows:
Table one: dust removal statistical table
To sum up, the utility model provides a high-efficient desulfurization dust removal integrated device, its desulfurization is efficient, and the running resistance is little, simple structure, and the reliability is high, easily installation and maintenance. The novel desulfurizing and dedusting device is very suitable for small boilers, steel making, aluminum smelting, ships and other chemical and non-electric factories. High-efficient desulfurization is realized to half section under the device, the high-efficient dust removal defogging is realized to first half section, so the desulfurization is removed dust and can be accomplished in one set of device, need not the slurry nozzle in addition, reach very high gas-liquid mass transfer rate with the fierce torrent of slurry on the impeller, also avoid the condition that traditional wet process absorption tower nozzle blockked up, and simultaneously, the device is really just a miniature absorption tower, can be according to the size of flue gas volumn, its device quantity of nimble arrangement and the mode of arranging, can be according to the environment in actual place, in accordance with the most simple and convenient construction scheme of adoption of local conditions.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
Claims (9)
1. The utility model provides a high-efficient desulfurization dust removal integrated device which characterized in that: the device comprises a slurry tank (1), n outer cylinders (7) of a desulfurization unit, a flue gas collecting pipe (4), a tubular dust and mist remover (5), m Y-shaped impellers (2), n slurry supply pipes (3), m venturis (8) and a raw flue gas inlet (9), wherein both m and n are more than or equal to 2; y type impeller (2) are installed in desulfurization unit urceolus (7), confession thick liquid pipe (3) set up in desulfurization unit urceolus (7) and with urceolus (7) are seamless zonulae occludens, supply thick liquid pipe with Y type impeller (2) axis is parallel, tubular dust removal defroster (5) are equipped with defroster washing water pipe (6), desulfurization unit urceolus (7) are the long straight urceolus of a plurality of little nipple joints connections, venturi (8) are arranged Y type impeller (2) top, former flue gas entry (9) set up in thick liquid case (1) upper portion.
2. The integrated desulfurization and dust removal device of claim 1, wherein: the outer cylinder (7) of the desulfurization unit is connected with the top cover of the slurry tank (1) by a flange.
3. The integrated desulfurization and dust removal device of claim 1, wherein: the Y-shaped impeller (2) is a fixed impeller with a rotary vane.
4. The integrated desulfurization and dust removal device of claim 1, wherein: the distance between the pipe orifice of the pulp supply pipe (3) and the central axis is 5-30 cm.
5. the integrated desulfurization and dust removal device of claim 1, wherein: and the outer cylinder (7) of the desulfurization unit is connected with the flue gas collecting pipe (4), and the flue gas collecting pipe (4) is connected with the tubular dust and mist remover (5) through bolts and flanges.
6. The integrated desulfurization and dust removal device of claim 1, wherein: the flue gas collecting pipe (4) is a non-standard three-way pipe.
7. The integrated desulfurization and dust removal device of claim 1, wherein: the diameter of the outer cylinder (7) of the desulfurization unit is 0.3-3 m.
8. The integrated desulfurization and dust removal device of claim 1, wherein: the outer cylinder (7) of the desulfurization unit is connected in a buckling mode, and the joint is welded by a plastic welding rod.
9. The integrated desulfurization and dust removal device of claim 1, wherein: the raw flue gas inlet (9) is at least 0.5m higher than the highest liquid level of the slurry tank.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116116191A (en) * | 2023-01-04 | 2023-05-16 | 广东鸿星环保科技有限公司 | Efficient denitration treatment system for concurrent flow direction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116116191A (en) * | 2023-01-04 | 2023-05-16 | 广东鸿星环保科技有限公司 | Efficient denitration treatment system for concurrent flow direction |
| CN116116191B (en) * | 2023-01-04 | 2023-11-14 | 广东鸿星环保科技有限公司 | Efficient denitration treatment system for concurrent flow direction |
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