CN210229598U - High efficiency nanometer calcium carbonate desulphurization unit - Google Patents
High efficiency nanometer calcium carbonate desulphurization unit Download PDFInfo
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- CN210229598U CN210229598U CN201920623756.XU CN201920623756U CN210229598U CN 210229598 U CN210229598 U CN 210229598U CN 201920623756 U CN201920623756 U CN 201920623756U CN 210229598 U CN210229598 U CN 210229598U
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- calcium carbonate
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Abstract
The utility model discloses a high efficiency nanometer calcium carbonate desulphurization unit, including adding feed bin, rose box and desulfurizing tower, be equipped with lower circulation desulfurization district and upper circulation desulfurization district in the desulfurizing tower, upper circulation desulfurization district from the top down is equipped with defroster and multiunit in proper order and sprays the layer, per two sets of all be provided with porous tray between the layer sprays, it includes shower and equidistance a plurality of nozzles of installing on the shower to spray the layer, desulfurizing tower top and bottom are provided with blast pipe and row's material pipe respectively. The utility model discloses the practicality is good, has not only improved desulfurated efficiency, can reduce the quantity of absorbent moreover, and the by-product purity that the desulfurization formed is also higher simultaneously.
Description
Technical Field
The utility model relates to a desulfurization technical field especially relates to a high efficiency nanometer calcium carbonate desulphurization unit.
Background
The wet limestone-gypsum desulfurizing process mainly utilizes limestone as absorbent, the limestone is pulverized into powder, then mixed with water and stirred to obtain limestone slurry, then the limestone slurry is fed into desulfurizing tower and contacted with flue gas, and the sulfur dioxide in the flue gas, calcium carbonate in the slurry and blown oxygen gas are reacted to produce calcium sulfate so as to attain the goal of desulfurization.
Most desulfurization techniques at present often let in the desulfurizing tower with the flue gas directly, then react with alkaline material, and the solid impurity that this kind of desulfurization mode not only generated is more, has reduced the purity of by-product (gypsum), can consume more alkaline absorbent moreover, and desulfurization efficiency is not high, consequently, we propose a high efficiency nanometer calcium carbonate desulphurization unit.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a high-efficiency nanometer calcium carbonate desulfurization device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a high efficiency nanometer calcium carbonate desulphurization unit, is including adding feed bin, rose box and desulfurizing tower, be equipped with down circulation desulfurization district and upper loop desulfurization district in the desulfurizing tower, upper loop desulfurization district from the top down is equipped with defroster and multiunit in proper order and sprays the layer, and is per two sets of all be provided with porous tray between the layer sprays, it includes spray header and equidistance a plurality of nozzles of installing on the spray header to spray the layer, desulfurizing tower top and bottom are provided with blast pipe and row's material pipe respectively.
Preferably, the top intercommunication of rose box has the flue gas pipe, the equidistance is provided with the filter equipment of I structure in the rose box, filter equipment includes two baffles that set up from top to bottom and installs the filter screen between two baffles, the bottom intercommunication of rose box has the intake pipe, and the intake pipe runs through the lateral wall of desulfurizing tower and extends to in the desulfurizing tower.
Preferably, the bottom of adding the feed bin is connected with the unloading pipe, and fixed mounting has the counter on the unloading pipe, the one end intercommunication that the feed bin was kept away from to the unloading pipe has the thick liquid case, be provided with the motor on the roof of thick liquid case, install the stirring rod on the output shaft of motor, and the stirring rod is located the thick liquid incasement.
Preferably, lower circulation desulfurization district includes the fan, the air exit of fan is connected with the air-supply line, the air-supply line runs through the lateral wall of desulfurizing tower and extends to in the desulfurizing tower.
Preferably, the blower is a roots blower.
Preferably, the slurry tank is connected with a feed pump through a hose, and the output end of the feed pump is connected with the spray pipe.
The utility model has the advantages that:
1. through the filter equipment who sets up the I-shaped structure, can force the flue gas to pass through each filter screen, filter dust and other particles in the flue gas, make the flue gas that gets into in the desulfurizing tower no longer contain solid particle, can generate the higher by-product of purity after sulphide and the reaction of nanometer calcium carbonate solution to the consumption of absorbent has been reduced.
2. Through setting up the spoiler, can make the flue gas form the backward flow in reaction zone territory, increase with the reaction time of nanometer calcium carbonate solution, need not increase the height of desulfurizing tower and just can reach ideal desulfurization effect.
3. Through setting up porous tray and roots's fan, can the equipartition flue gas, increase gas-liquid area of contact, the oxygen content moderate degree in the desulfurizing tower improves and is favorable to calcium carbonate solution and sulphide reaction, improves desulfurization efficiency.
4. The nano calcium carbonate is used as a desulfurization absorbent, has better effect than the common alkaline articles, and can improve the desulfurization efficiency by 15 to 20 percent.
To sum up, the utility model discloses the practicality is good, has not only improved desulfurated efficiency, can reduce the quantity of absorbent moreover, and the by-product purity that the desulfurization formed is also higher simultaneously.
Drawings
FIG. 1 is a schematic structural diagram of a high-efficiency nano calcium carbonate desulfurization device provided by the present invention;
fig. 2 is a schematic structural diagram of a filter box part in a high-efficiency nano calcium carbonate desulfurization device provided by the utility model.
In the figure: the device comprises a flue gas pipe 1, a baffle 2, a filter screen 3, a filter box 4, a spray pipe 5, an exhaust pipe 6, a demister 7, a porous tray 8, a spoiler 9, a nozzle 10, an air inlet pipe 11, a desulfurizing tower 12, a fan 13, a discharge pipe 14, a feed pump 15, a slurry tank 16, a metering device 17, a feed bin 18, a stirring rod 19 and a discharge pipe 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a high efficiency nanometer calcium carbonate desulphurization unit, including adding feed bin 18, rose box 4 and desulfurizing tower 12, be equipped with down circulation desulfurization district and upper loop desulfurization district in the desulfurizing tower 12, upper loop desulfurization district from the top down is equipped with defroster 7 and multiunit in proper order and sprays the layer, every two sets of spraying all are provided with porous tray 8 between the layer, can equally divide the flue gas that rises, increase gas-liquid area of contact, it includes spray pipe 5 and equidistance a plurality of nozzles 10 of installing on spray pipe 5 to spray the layer, adjacent two sets of spray nozzles 10 that set up on the layer are not in same vertical plane, desulfurizing tower 12 top and bottom are provided with blast pipe 6 and row's material pipe 14 respectively.
The top of the filter box 4 is communicated with a flue gas pipe 1, filter devices of I-shaped structures are equidistantly arranged in the filter box 4, each filter device comprises two baffles 2 arranged up and down and a filter screen 3 arranged between the two baffles, the aperture size of each filter screen 3 is 2-10 mm, each filter screen 3 can be replaced, the bottom of the filter box 4 is communicated with an air inlet pipe 11, and each air inlet pipe 11 penetrates through the side wall of the desulfurizing tower 12 and extends into the desulfurizing tower 12.
The bottom of adding feed bin 18 is connected with unloading pipe 20, and fixed mounting has counter 17 on unloading pipe 20, and the nanometer calcium carbonate's that counter 17 can the accurate control add volume can not cause the too big or undersize condition of reaction liquid concentration, and the one end intercommunication that unloading pipe 20 kept away from adding feed bin 18 has thick liquid case 16, is provided with the motor on the roof of thick liquid case 16, installs stirring rod 19 on the output shaft of motor, and stirring rod 19 is located thick liquid case 16.
The lower circulating desulfurization area comprises a fan 13, an air outlet of the fan 13 is connected with an air inlet pipe, and the air inlet pipe penetrates through the side wall of the desulfurization tower 12 and extends into the desulfurization tower 12.
The blower 13 is a Roots blower, the impeller and the shaft of the Roots blower are of an integral structure, and the impeller is free of abrasion and can continuously operate for a long time.
The slurry tank 16 is connected with a feed pump 15 through a hose, and the output end of the feed pump 15 is connected with the spray pipe 5.
The utility model discloses during the use, nanometer calcium carbonate is earlier ground by the breaker, smash the back, transport again in adding feed bin 18, nanometer calcium carbonate is as desulfurization process's absorbent, fall in adding feed bin 18 in counter 17, counter 17 can accurately be got quantitative nanometer calcium carbonate and drop into slurry tank 16, add behind the appropriate amount of water and continuously stir by stirring rod 19 and prevent to deposit, even reaction liquid is carried in shower 5 by 15 pressurizations of charge pump, spout after atomizing through nozzle 10, contain sulphur waste gas from flue gas pipe 1 enter into rose box 4 in, along the passageway motion that baffle 2 is constituteed, filter screen 3 will not burn completely or waste material large granule filters down, then the flue gas is from intake pipe 11 entering desulfurizing tower 12 in, then upward move.
Part of nano calcium carbonate solution is stored at the bottom of the desulfurizing tower 12, flue gas rotates and rises in the desulfurizing tower 12 under the action of the spoiler 9 and reacts with falling nano calcium carbonate fog liquid to generate calcium sulfite, the fan 13 blows air into the nano calcium carbonate solution at the bottom of the desulfurizing tower 12 to facilitate the reaction of the calcium carbonate solution and sulfide, the calcium sulfite falling from the upper part of the desulfurizing tower 12 is oxidized again to generate calcium sulfate, the calcium sulfate is a byproduct (gypsum) in the desulfurizing process, the rest nano calcium carbonate solution falls to the bottom of the desulfurizing tower 12 and can be used as a secondary reactant for reuse, the flue gas is uniformly dispersed at the porous tray 8 after being filtered by the first layer of spray nozzles 10, the nano calcium carbonate solution is atomized again to be sprayed out by the second layer of spray nozzles 10 to react with the flue gas, the sulfur content of the flue gas after passing through the multilayer reaction zone reaches the emission standard, and finally moisture is removed, is discharged through the exhaust pipe 6.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a high efficiency nanometer calcium carbonate desulphurization unit, is including adding feed bin (18), rose box (4) and desulfurizing tower (12), its characterized in that, be equipped with down circulation desulfurization district and upper loop desulfurization district in desulfurizing tower (12), upper loop desulfurization district from the top down is equipped with defroster (7) and multiunit in proper order and sprays the layer, and is per two sets of spray and all be provided with porous tray (8) between the layer, spray a plurality of nozzles (10) that the layer includes shower (5) and equidistance installation on shower (5), desulfurizing tower (12) top and bottom are provided with blast pipe (6) respectively and arrange material pipe (14).
2. The high-efficiency nano calcium carbonate desulfurization device according to claim 1, characterized in that two symmetrical side walls of the filter box (4) are respectively communicated with a flue gas pipe (1) and an air inlet pipe (11), the air inlet pipe (11) penetrates through the side wall of the desulfurization tower (12) and extends into the desulfurization tower (12), the filter device with an I-shaped structure is equidistantly arranged in the filter box (4), and the filter device comprises two baffles (2) arranged on the left and right and a filter screen (3) arranged between the two baffles (2).
3. The high-efficiency nano calcium carbonate desulfurization device according to claim 1, characterized in that a blanking pipe (20) is connected to the bottom of the feeding bin (18), a meter (17) is fixedly installed on the blanking pipe (20), one end of the blanking pipe (20) far away from the feeding bin (18) is communicated with a slurry tank (16), a motor is arranged on the top wall of the slurry tank (16), a stirring rod (19) is installed on an output shaft of the motor, and the stirring rod (19) is located in the slurry tank (16).
4. The high-efficiency nano calcium carbonate desulfurization device according to claim 1, characterized in that the lower circulating desulfurization zone comprises a fan (13), the air outlet of the fan (13) is connected with an air inlet pipe, and the air inlet pipe penetrates through the side wall of the desulfurization tower (12) and extends into the desulfurization tower (12).
5. The high-efficiency nano calcium carbonate desulfurization device according to claim 4, characterized in that the blower (13) is a Roots blower.
6. The high-efficiency nano calcium carbonate desulfurization device according to claim 3, characterized in that the slurry tank (16) is connected with a feed pump (15) through a hose, and the output end of the feed pump (15) is connected with the spray pipe (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920623756.XU CN210229598U (en) | 2019-05-05 | 2019-05-05 | High efficiency nanometer calcium carbonate desulphurization unit |
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| CN201920623756.XU CN210229598U (en) | 2019-05-05 | 2019-05-05 | High efficiency nanometer calcium carbonate desulphurization unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619404A (en) * | 2020-12-18 | 2021-04-09 | 江苏康玉环保科技有限公司 | Granulator flue gas treatment equipment with function of beam flue gas desulfurization |
| CN112844023A (en) * | 2020-12-29 | 2021-05-28 | 浙江宝峰热电有限公司 | Flue gas ammonia water wet desulphurization equipment |
| CN113694710A (en) * | 2021-09-29 | 2021-11-26 | 山西省工业设备安装集团有限公司 | Coke oven flue gas desulfurization and purification device |
-
2019
- 2019-05-05 CN CN201920623756.XU patent/CN210229598U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619404A (en) * | 2020-12-18 | 2021-04-09 | 江苏康玉环保科技有限公司 | Granulator flue gas treatment equipment with function of beam flue gas desulfurization |
| CN112844023A (en) * | 2020-12-29 | 2021-05-28 | 浙江宝峰热电有限公司 | Flue gas ammonia water wet desulphurization equipment |
| CN113694710A (en) * | 2021-09-29 | 2021-11-26 | 山西省工业设备安装集团有限公司 | Coke oven flue gas desulfurization and purification device |
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Denomination of utility model: A high efficiency nano calcium carbonate desulfurization device Effective date of registration: 20211230 Granted publication date: 20200403 Pledgee: Jiangxi Yongfeng Rural Commercial Bank Co.,Ltd. Pledgor: JIANGXI JIUFENG NANO CALCIUM CARBONATE CO.,LTD. Registration number: Y2021980017292 |