CN207546167U - A kind of fume desulfurizing tower air flume conveying device - Google Patents
A kind of fume desulfurizing tower air flume conveying device Download PDFInfo
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- CN207546167U CN207546167U CN201721263861.4U CN201721263861U CN207546167U CN 207546167 U CN207546167 U CN 207546167U CN 201721263861 U CN201721263861 U CN 201721263861U CN 207546167 U CN207546167 U CN 207546167U
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- desulfurizing tower
- air flume
- conveying device
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Abstract
The utility model is related to flue gas desulfurization technique fields, more particularly to a kind of fume desulfurizing tower air flume conveying device, including air flume, it is arranged on the rotational flow generator of air flume discharge end, the rotational flow generator includes receiving the chamber that gathers materials of cycle cigarette ash exported from air flume discharge end, the the first taper diffuser connected with the chamber that gathers materials is provided with above the chamber that gathers materials, the big end of the first taper diffuser is set upward, the small end endoporus of the first taper diffuser connects the chamber that gathers materials, several are along the circumferential direction distributed on the inner wall of the first taper diffuser for carrying out the first guide vane of eddy flow guiding to cycle cigarette ash.A kind of fume desulfurizing tower of the utility model improves the airflow stability of desulphurization circulating in desulfurizing tower with air flume conveying device, improves the cleanliness and efficiency of desulfurization.
Description
Technical field
The utility model is related to flue gas desulfurization technique fields, and in particular to a kind of fume desulfurizing tower is conveyed with air flume and filled
It puts.
Background technology
Air flume conveying device is the continous way pneumatic transport equipment for conveying dry powdery material diagonally downward.It is defeated
When sending material, material is blown into air by high-end feeding upper shell, while from roots blower to the lower housing of air flume.Air leads to
The air-permeable layer of overstocked cloth hole is fluidized material between being distributed in material particles.Because groove body has downward gradient, fluidization
Material under the effect of gravity just along groove body forward slip, reach conveying purpose.
When flue gas desulfurization operation is carried out in the fume desulfurizing tower using semidry method, sulfur dioxide and other acid in flue gas
Property gas reacted with alkaline calcium hydroxide, the atomized water being added in desulfurizing tower, generate calcium sulfite and calcium sulfate and other
Calcium salt removes sulfur dioxide and other sour gas.In subsequent treatment process, needed by the cigarette ash of first desulfurization and dedusting
It is again fed in desulfurizing tower and carries out circulation desulfurization processing, to improve the cleanliness of flue gas desulfurization, wherein the conveying of cycle cigarette ash
It needs to realize by air flume.
Existing air flume conveying device during fume desulfurizing tower for having the following problems:
First, when carrying out the conveying of cycle cigarette ash using air flume, cycle cigarette ash is the discharge end by air flume
Be fed directly in desulfurizing tower, cycle cigarette ash from discharge end out be directly under fall in desulfurizing tower, more collect in desulfurizing tower
In, it is uneven to be easy to cause cycle cigarette ash dispersion, so as to cannot adequately be mixed with calcium hydroxide, the atomized water in desulfurizing tower
It closes, causes the reduction of Desulfovibrio efficiency.
Second, after cycle cigarette ash enters desulfurizing tower, it is to drive what is risen by the ascending air from boiler smoke, works as pot
When the pressure of kiln gas reduces, circulation rate of the cycle cigarette ash in desulfurizing tower is slower or occurs that stable take off cannot be formed
The situation of sulfur cycle can equally reduce the efficiency of desulfurization.
Utility model content
To solve the above-mentioned problems, the utility model proposes a kind of fume desulfurizing tower air flume conveying devices, it is intended to
The dispersibility in cycle cigarette ash desulfurizing tower is improved, promotes desulphurization circulating of the cycle cigarette ash in desulfurizing tower, and then improve desulfurization
Efficiency.Specific technical solution is as follows:
A kind of fume desulfurizing tower air flume conveying device including air flume, is arranged on air flume discharge end
Rotational flow generator, the rotational flow generator include receiving gathering materials for the cycle cigarette ash exported from air flume discharge end
Chamber is provided with the first taper diffuser connected with the chamber that gathers materials, the first taper diffusion above the chamber that gathers materials
The big end of pipe is set upward, and the small end endoporus of the first taper diffuser connects the chamber that gathers materials, in the first taper diffuser
Inner wall on be along the circumferential direction distributed with several for cycle cigarette ash carry out eddy flow guiding the first guide vane.
In above-mentioned technical proposal, rotational flow generator is equipped in air flume discharge end, cycle cigarette ash enters rotational flow generator
Afterwards, change flow direction under the first taper diffuser and the effect of the first guide vane, form the eddy flow diffused up, be conducive to recycle
Cigarette ash is fully spread in desulfurizing tower, is evenly distributed, so as to improve the efficiency of desulfurization.
As a further improvement, a kind of fume desulfurizing tower of the utility model with air flume conveying device described
The inside of one taper diffuser has also been coaxially disposed the second taper diffuser, and the big end of the second taper diffusion is set upward
It puts, the outer wall of the second taper diffusion is connected with the first guide vane.
In addition, several are along the circumferential direction distributed on the inner wall of the second taper diffuser for recycling cigarette ash
Carry out the second guide vane of eddy flow guiding.
The setting of above-mentioned double diffusion pipe and double guide vanes can cause the formation of eddy flow to be easier.
As a preferred embodiment, the quantity of first guide vane and the second guide vane is 7 or more, and is equal
Cloth.
In the utility model, gas flow optimized room is additionally provided in the lower end of the chamber that gathers materials, the gas flow optimized room is with gathering materials
Chamber is connected by being arranged on the gas flow optimized room with the air-permeable layer between the chamber that gathers materials, and compression is provided on gas flow optimized room
The air inlet pipe of air.
Wherein, the air-permeable layer includes upper strata porous plate, the lower floor being connected on the porous plate of upper strata fluidisation cloth.
The setting of said flow control room in desulfurizing tower inside smoke pressure reduction, can increase the fortune of cycle cigarette ash
Dynamic speed ensures the stability of circulation desulfurization, improves the efficiency of desulfurization.
In order to realize the adjustability of cycle cigarette ash flow velocity, first be also provided in the air inlet pipe for being serially connected in gas flow optimized room
Flow control motor-driven valve.By change into the compressed air of gas flow optimized room, the flow velocity of cycle cigarette ash can be adjusted.
A kind of fume desulfurizing tower of the utility model further includes controller with air flume conveying device, is arranged on eddy flow hair
First gas flow sensor on raw device, the first gas flow sensor, first flow control motor-driven valve difference are electrical
Connect controller.
It is above-mentioned diffuser setting first gas flow sensor can accurate control loop cigarette ash eddy flow flow velocity.
A kind of fume desulfurizing tower of the utility model is further included with air flume conveying device is arranged on smoke feed channel
On second gas flow sensor, the second gas flow sensor and controller are electrically connected.
The setting of second gas flow sensor on above-mentioned smoke feed channel can measure the flue gas stream in flue
Speed when finding that flue gas flow rate reduces in desulfurizing tower, can increase the compressed air into gas flow optimized room by controller
Flow, so as to forming stable air-flow in desulfurizing tower, improve the stability of circulation desulfurization.
As to further improvement of the utility model, the utility model, which further includes to be arranged on, gathers materials chamber and the first taper expands
Rotating device between separate tube, the rotating device include substrate, are disposed on the substrate lower end and back to a pair of of circular cone of setting
Roller bearing, axial fixing plate, the substrate, which is fixed on, to gather materials on chamber, and the first taper diffuser passes through a pair of circle
Cone roller bearing is pivotally installed on the substrate, and pass through axial fixing plate and carry out axial restraint.
Above-mentioned rotating device realizes the rotation of the first taper diffuser under the action of the compressed air in gas flow optimized room
Turn, so as to greatly improve the eddy flow effect of rotational flow generator generation.
In addition, in order to enable the work of rotating device is more reliable, between the first taper diffuser and substrate, axial restraint
The high-temperature resistant seal ring for preventing cigarette ash from entering in the pair of tapered roller bearing is additionally provided between plate and substrate.
In order to improve the effect of desulfurization, be additionally provided in the intracavitary of gathering materials for add desulfurizing agent to material head, it is described
It is connected to material head by feed pipe with the batcher of desulfurizing agent, it is electronic that second flow control is serially connected on the feed pipe
Valve, the second flow control the batcher of motor-driven valve, desulfurizing agent to be electrically connected respectively with controller.
As further Optimal improvements, the rotational flow generator of the air flume discharge end is located in desulfurization inner wall of tower
The heart, the upper end of the rotational flow generator are located at below seven apertures in the human head Venturi tube, and apart from seven apertures in the human head Venturi tube lower end 2500-3500mm
In the range of, ranging from 90 ° of the first taper diffuser of the rotational flow generator and the coning angle of the second taper diffuser~
120°。
In the utility model, PLC controller may be used in controller.
It should be noted that a kind of fume desulfurizing tower air flume conveying device of the utility model can also be in desulfurization
It is reverse mounted in tower, i.e., the rotational flow generator of above-mentioned the utility model is rotated integrally 180 ° so that the first taper diffuser court
Lower setting.It is reverse mounted advantageously reduce cycle cigarette ash in the gathering of the chamber that gathers materials, avoid blocking.
The beneficial effects of the utility model are:
First, a kind of fume desulfurizing tower air flume conveying device of the utility model is set in air flume discharge end
After thering is rotational flow generator, cycle cigarette ash to enter rotational flow generator, change under the first taper diffuser and the effect of the first guide vane
Become flow direction, form the eddy flow diffused up, be conducive to cycle cigarette ash and fully spread in desulfurizing tower, is evenly distributed, so as to improve
The cleanliness of desulfurization.
Second, a kind of fume desulfurizing tower air flume conveying device of the utility model is provided with gas flow optimized room, root
Flue gas flow rate in the desulfurizing tower measured according to sensor, come adjust cycle cigarette ash flow velocity, with and ensure in desulfurizing tower formed stablize
Desulphurization circulating speed, improve the cleanliness and efficiency of desulfurization.
Third, a kind of fume desulfurizing tower air flume conveying device of the utility model, in gathering materials for rotational flow generator
Intracavitary be additionally provided with for add desulfurizing agent to material head so that desulfurizing agent can be sufficiently mixed by eddy flow with recycling cigarette ash,
Further improve the cleanliness and efficiency of desulfurization.
4th, a kind of fume desulfurizing tower air flume conveying device of the utility model, the rotation after being further improved
Flow-generator can realize rotation under the action of compressed air, so as to greatly improve the eddy flow effect of rotational flow generator generation
Fruit.
Description of the drawings
Fig. 1 is a kind of structure diagram of fume desulfurizing tower air flume conveying device of the utility model;
Fig. 2 is the partial enlarged view for being related to rotational flow generator part in Fig. 1;
Fig. 3 is the vertical view of the rotational flow generator part in Fig. 2;
Fig. 4 is a kind of improved structure schematic diagram to Fig. 1;
Fig. 5 is the partial enlarged view of Fig. 4.
In figure:1st, air flume, 2, rotational flow generator, 3, gather materials chamber, the 4, first taper diffuser, the 5, first water conservancy diversion leaf
Piece, the 6, second taper diffuser, the 7, second guide vane, 8, gas flow optimized room, 9, air-permeable layer, 10, the air inlet pipe of compressed air,
11st, upper strata porous plate, 12, lower floor's fluidisation cloth, 13, first flow control motor-driven valve, 14, controller, 15, first gas flow velocity passes
Sensor, 16, second gas flow sensor, 17, desulfurizing tower, 18, seven apertures in the human head Venturi tube, 19, to material head, 20, feed pipe, 21,
Second flow controls motor-driven valve, 22, the batcher of desulfurizing agent, 23, tapered roller bearing, 24, high-temperature resistant seal ring, 25, substrate,
26th, axial fixing plate.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and the protection model of the utility model cannot be limited with this
It encloses.
Embodiment for a kind of fume desulfurizing tower air flume conveying device of the utility model as shown in Figures 1 to 3, packet
Air flume 1, the rotational flow generator 2 for being arranged on 1 discharge end of air flume are included, the rotational flow generator 2 includes coming for receiving
The chamber 3 that gathers materials of the cycle cigarette ash exported from 1 discharge end of air flume, is provided in the top for gathering materials chamber 3 and gathers materials with described
The first taper diffuser 4 that chamber 3 connects, the big end of the first taper diffuser 4 are set upward, the first taper diffuser
4 small end endoporus connects the chamber 3 that gathers materials, several use are along the circumferential direction distributed on the inner wall of the first taper diffuser 4
In the first guide vane 5 that eddy flow guiding is carried out to cycle cigarette ash.
As a further improvement, a kind of fume desulfurizing tower of the present embodiment with air flume conveying device described first
The inside of taper diffuser 4 has also been coaxially disposed the second taper diffuser 6, and the big end of the second taper diffusion 6 is set upward
It puts, the outer wall of the second taper diffusion 6 is connected with the first guide vane 5.
In addition, several are along the circumferential direction distributed on the inner wall of the second taper diffuser 6 for recycling cigarette
Ash carries out the second guide vane 7 of eddy flow guiding.
As a preferred embodiment, the quantity of 5 and second guide vane 7 of the first guide vane is 7 or more, and is
It is uniformly distributed.
In the present embodiment, gas flow optimized room 8 is additionally provided in the lower end for gathering materials chamber 3, the gas flow optimized room 8 is with gathering materials
Chamber 3 is connected by the air-permeable layer 9 being arranged between the gas flow optimized room 8 and the chamber 3 that gathers materials, and is set on gas flow optimized room 8
There is the air inlet pipe 10 of compressed air.
Wherein, the air-permeable layer 9 includes upper strata porous plate 11, the lower floor being connected on upper strata porous plate 11 fluidisation cloth 12.
In order to realize the adjustability of cycle cigarette ash flow velocity, it is also provided with being serially connected in the in the air inlet pipe 10 of gas flow optimized room
One flow control motor-driven valve 13.
A kind of fume desulfurizing tower of the present embodiment further includes controller 14 with air flume conveying device, is arranged on eddy flow hair
First gas flow sensor 15 on raw device, the first gas flow sensor 15, first flow control motor-driven valve 13 divide
It electricity Xing Lianjie not controller 14.
The first gas flow sensor 15 of the present embodiment is located on the first diffuser 4 of rotational flow generator 2.
A kind of fume desulfurizing tower of the present embodiment is further included with air flume conveying device to be arranged on smoke feed channel
Second gas flow sensor 16, the second gas flow sensor 16 is electrically connected with controller 14.
As to further improvement of this embodiment, the present embodiment, which further includes, is arranged on 3 and first taper of chamber diffusion of gathering materials
Rotating device between pipe 4, the rotating device include substrate 25, are disposed on the substrate lower end and back to a pair of of circular cone of setting
Roller bearing 23, axial fixing plate 26, the substrate 25, which is fixed on, to gather materials on chamber 3, and the first taper diffuser 4 is by described
A pair of of tapered roller bearing 23 be pivotally mounted on the substrate 25, and pass through axial fixing plate 26 carry out it is axial solid
It is fixed.
In addition, in order to enable the work of rotating device is more reliable, between the first taper diffuser 4 and substrate 25, axially
The high-temperature resistant seal ring for preventing cigarette ash from entering in the pair of tapered roller bearing 23 is additionally provided between fixed plate 26 and substrate 25
24。
In the present embodiment, in order to improve the effect of desulfurization, it is additionally provided with to add desulfurizing agent in the chamber 3 that gathers materials
It is described to be connected to material head 19 by feed pipe 20 with the batcher 22 of desulfurizing agent to material head 19, it is gone here and there on the feed pipe 20
Be connected to second flow control motor-driven valve 21, second flow control motor-driven valve 21, desulfurizing agent batcher 22 respectively with control
Device 14 is electrically connected.
As the improvement that advanced optimizes of the present embodiment, the rotational flow generator 2 of the air flume discharge end is located at desulfurization
17 inner wall center of tower, the upper end of the rotational flow generator 2 are located at 18 lower section of seven apertures in the human head Venturi tube, and apart from seven apertures in the human head Venturi tube 18
In the range of the 2500-3500mm of lower end, the first taper diffuser 4 of the rotational flow generator 2 and the circular cone of the second taper diffuser 6
Ranging from 90 °~120 ° of angle.
In the present embodiment, controller uses PLC controller.
In the present embodiment, all components inside desulfurizing tower are manufactured using wear-resistant material or are arranged using anti-wear
It applies.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, under the premise of the utility model technical principle is not departed from, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (10)
1. a kind of fume desulfurizing tower air flume conveying device, it is characterised in that including air flume, be arranged on air flume
The rotational flow generator of discharge end, the rotational flow generator include receiving the cycle cigarette ash exported from air flume discharge end
The chamber that gathers materials, be provided with the first taper diffuser connected with the chamber that gathers materials above the chamber that gathers materials, first cone
The big end of shape diffuser is set upward, and the small end endoporus of the first taper diffuser connects the chamber that gathers materials, in first taper
Several are along the circumferential direction distributed on the inner wall of diffuser for carrying out the first guide vane of eddy flow guiding to cycle cigarette ash.
2. a kind of fume desulfurizing tower air flume conveying device according to claim 1, it is characterised in that:Described first
The inside of taper diffuser has also been coaxially disposed the second taper diffuser, and the big end of the second taper diffusion is set upward,
The outer wall of the second taper diffusion is connected with the first guide vane.
3. a kind of fume desulfurizing tower air flume conveying device according to claim 2, it is characterised in that:Described
Several are along the circumferential direction distributed on the inner wall of two taper diffusers to lead for carrying out the second of eddy flow guiding to cycle cigarette ash
Flow blade.
4. a kind of fume desulfurizing tower air flume conveying device according to claim 1, it is characterised in that:In the collection
The lower end of material chamber is additionally provided with gas flow optimized room, and the gas flow optimized room and the chamber that gathers materials are by being arranged on the gas flow optimized room and collection
Air-permeable layer between material chamber is connected, and the air inlet pipe of compressed air is provided on gas flow optimized room.
5. a kind of fume desulfurizing tower air flume conveying device according to claim 4, it is characterised in that:It is described ventilative
Layer includes upper strata porous plate, the lower floor being connected on the porous plate of upper strata fluidisation cloth.
6. a kind of fume desulfurizing tower air flume conveying device according to claim 4, it is characterised in that:Further include string
The first flow control motor-driven valve being connected in the air inlet pipe of gas flow optimized room.
7. a kind of fume desulfurizing tower air flume conveying device according to claim 5 or 6, it is characterised in that:Also wrap
The first gas flow sensor for include controller, being arranged on rotational flow generator, the second gas being arranged on smoke feed channel
Body flow sensor, the first gas flow sensor, second gas flow sensor, first flow control motor-driven valve difference
It is electrically connected controller.
8. a kind of fume desulfurizing tower air flume conveying device according to claim 1, it is characterised in that:It further includes and sets
It puts in the rotating device between chamber and the first taper diffuser that gathers materials, the rotating device includes substrate, is disposed on the substrate down
It holds and back to a pair of of tapered roller bearing, the axial fixing plate of setting, the substrate, which is fixed on, to gather materials on chamber, first taper
Diffuser is pivotally installed on the substrate by a pair of of tapered roller bearing, and is carried out by axial fixing plate
Axial restraint.
9. a kind of fume desulfurizing tower air flume conveying device according to claim 1, it is characterised in that:In the collection
Material intracavitary be additionally provided with for add desulfurizing agent to material head, it is described to be connected to material head by feed pipe with the batcher of desulfurizing agent
It connects, second flow control motor-driven valve is serially connected on the feed pipe, the second flow controls the feed of motor-driven valve, desulfurizing agent
Machine is electrically connected respectively with controller.
10. a kind of fume desulfurizing tower air flume conveying device according to claim 1, it is characterised in that:The sky
The rotational flow generator of gas skewed slot discharge end is located at desulfurization inner wall of tower center, and the upper end of the rotational flow generator is located at seven apertures in the human head venturi
Below pipe, and in the range of seven apertures in the human head Venturi tube lower end 2500-3500mm, the first taper diffuser of the rotational flow generator
And second ranging from 90 °~120 ° of coning angle of taper diffuser.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109453644A (en) * | 2018-12-20 | 2019-03-12 | 福建龙净脱硫脱硝工程有限公司 | Dry FGD process reactor and its material pre-mixing apparatus |
CN110841465A (en) * | 2019-12-17 | 2020-02-28 | 安徽欣创节能环保科技股份有限公司 | Flue gas cyclone distributor for rotary spray desulfurization |
CN111603919A (en) * | 2020-06-23 | 2020-09-01 | 中冶赛迪重庆信息技术有限公司 | Flow equalizing structure of large-diameter tower body and large-diameter tower body |
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2017
- 2017-09-29 CN CN201721263861.4U patent/CN207546167U/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109453644A (en) * | 2018-12-20 | 2019-03-12 | 福建龙净脱硫脱硝工程有限公司 | Dry FGD process reactor and its material pre-mixing apparatus |
CN109453644B (en) * | 2018-12-20 | 2024-07-05 | 福建龙净脱硫脱硝工程有限公司 | Dry flue gas purifying reactor and material premixing device thereof |
CN110841465A (en) * | 2019-12-17 | 2020-02-28 | 安徽欣创节能环保科技股份有限公司 | Flue gas cyclone distributor for rotary spray desulfurization |
CN111603919A (en) * | 2020-06-23 | 2020-09-01 | 中冶赛迪重庆信息技术有限公司 | Flow equalizing structure of large-diameter tower body and large-diameter tower body |
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