CN204601971U - A kind of Multistage desulfuration system - Google Patents
A kind of Multistage desulfuration system Download PDFInfo
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- CN204601971U CN204601971U CN201520266958.5U CN201520266958U CN204601971U CN 204601971 U CN204601971 U CN 204601971U CN 201520266958 U CN201520266958 U CN 201520266958U CN 204601971 U CN204601971 U CN 204601971U
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Abstract
The utility model discloses a kind of Multistage desulfuration system, comprise sack cleaner, dust-removal and desulfurizing heat riser, outer circulation pond, Inner eycle pond, oxidation pond, filter press, first, second cyclone, the assemblies such as clear water reserviors and slurrying pond.Wherein be provided with the multistage dust-removal and desulfurizing cylinder that is communicated with successively and dehydration tube, flue gas in dust-removal and desulfurizing heat riser to heat up again the assemblies such as room.The utility model structure is simple, and operating cost is low, can realize the efficient removal to sulfur dioxide in flue gas, and substantially can not produce waste water, waste gas etc., not only can not cause secondary pollution, also achieves effective utilization of resource, environmental protection.
Description
Technical field
The utility model relates to a kind of desulfurizer, particularly a kind of Multistage desulfuration system.
Background technology
Human health in the environmental pollution serious threat that atmosphere pollution brings.Wherein the facilities exhaust such as boiler is one of main source causing atmosphere pollution containing SO 2 tail gas.Especially, in the coal that China produces, sulfur content is higher, can produce a large amount of sulfur dioxide gas during burning.For this reason, industry have employed various ways to overcome this problem.Such as, a kind of mode wherein to be burnt front desulfurization to coal, namely by coal washing, removed by the sulfur in fire coal, reaches Filter Tuber For Clean Coal burning, reduce SO
2discharge object, but the installations and facilities of its disposable input are taken, annual running cost and equipment maintenance cost too high, not easily apply.All the other conventional modes carry out desulfurization to combustion tail gas, method mainly contains ammonia process, amine process, Citrate Buffer, alkaline process etc., but also ubiquity device structure is complicated, investment is large for these methods, the problems such as operating cost is high, and it is poor to the removal effect of sulfur dioxide in tail gas, desulfurization degree is low, and also easily causes secondary pollution.
Utility model content
The purpose of this utility model is to provide a kind of Multistage desulfuration system, to overcome deficiency of the prior art.
For realizing aforementioned utility model object, the technical solution adopted in the utility model comprises:
A kind of Multistage desulfuration system, comprise sack cleaner, dust-removal and desulfurizing heat riser, outer circulation pond, Inner eycle pond, oxidation pond and filter press, described sack cleaner is provided with smoke inlet, and the exhanst gas outlet of described sack cleaner is communicated with the multistage dust-removal and desulfurizing cylinder be located in dust-removal and desulfurizing heat riser successively through the smoke inlet of dust-removal and desulfurizing heat riser, also be provided with dehydration tube and flue gas in described dust-removal and desulfurizing heat riser to heat up again room, the described flue gas again room of intensification is distributed between the smoke inlet of dust-removal and desulfurizing heat riser and the smoke inlet of first order dust-removal and desulfurizing cylinder, heat up the again purifying smoke entrance of room and the purifying smoke outlet of described flue gas is communicated with the exhanst gas outlet of afterbody dust-removal and desulfurizing cylinder and chimney respectively, wherein the discharge outlet of first order dust-removal and desulfurizing cylinder is communicated with outer circulation pond, the discharge outlet of all the other dust-removal and desulfurizing cylinders at different levels is communicated with Inner eycle pond, in described, outer circulation pond communicates with each other, and Inner eycle pond is also communicated with the water transport port of dust-removal and desulfurizing cylinder at different levels, described outer circulation pond is communicated with the first cyclone, the discharge outlet of described first cyclone is communicated with Inner eycle pond, concentrated solution outlet is communicated with oxidation pond, the oxidation sweetening slag outlet of described oxidation pond is communicated with the second cyclone, the discharge outlet of described second cyclone is communicated with oxidation pond, concentrated solution outlet is communicated with filter press, the discharge outlet of described filter press is communicated with clear water reserviors, described clear water reserviors are communicated with respectively with Inner eycle pond and slurrying pond, and described slurrying pond is communicated with Inner eycle pond.
Further, described multistage dust-removal and desulfurizing cylinder comprises the first, second, third, fourth, the 5th, the 6th grade of dust-removal and desulfurizing cylinder be communicated with successively.
Further, the exhanst gas outlet of described sack cleaner is communicated with through the smoke inlet of air-introduced machine with dust-removal and desulfurizing heat riser.
Further, described filter press adopts vacuum belt press filter.
Further, described slurrying pond is communicated with lime bin.
Further, described Inner eycle pond first internal circulation pump is communicated with the water transport port of dust-removal and desulfurizing cylinder at different levels.
Further, described outer circulation pond second internal circulation pump is communicated with the first cyclone.
Further, described oxidation pond is communicated with oxidation fan.
Further, the oxidation sweetening slag outlet of described oxidation pond is communicated with the second cyclone through filter pressing pump.
Compared with prior art, advantage of the present utility model comprises: this Multistage desulfuration system architecture is simple, operating cost is low, the efficient removal to sulfur dioxide in flue gas can be realized, and substantially can not produce waste water, waste gas etc., not only can not cause secondary pollution, also achieve effective utilization of resource, environmental protection, can be applicable to catalysis flue gas desulfurization, boiler desulfurization, coke oven desulfurization etc.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Multistage desulfuration system in the utility model one exemplary embodiments;
Description of reference numerals: flue gas 1, sack cleaner 2, air-introduced machine 3, dust-removal and desulfurizing heat riser 4, 1# dust-removal and desulfurizing cylinder 41, 2# dust-removal and desulfurizing cylinder 42, 3# dust-removal and desulfurizing cylinder 43, 4# dust-removal and desulfurizing cylinder 44, 5# dust-removal and desulfurizing cylinder 45, 6# dust-removal and desulfurizing cylinder 46, chimney 5, buck 6, outer circulation pond 7, Inner eycle pond 8, internal circulation pump 91, outer circulation pump 92, lime bin 10, slurrying pond 11, cyclone 12, oxidation pond 13, filter pressing pump 14, cyclone 15, vacuum belt press filter 16, clear water reserviors 17, clarified water pump 18, oxidation fan 19, desulfurization slag 20.
Detailed description of the invention
Below in conjunction with accompanying drawing and comparatively typical case study on implementation, the technical solution of the utility model is further described.
Refer to shown in Fig. 1, a kind of Multistage desulfuration system that the present embodiment relates to comprises the assemblies such as sack cleaner 2, dust-removal and desulfurizing heat riser 4, outer circulation pond 7, Inner eycle pond 8, oxidation pond 13 and filter press 16.
Further, described sack cleaner is provided with smoke inlet, and the exhanst gas outlet of described sack cleaner is communicated with the multistage dust-removal and desulfurizing cylinder be located in dust-removal and desulfurizing heat riser successively through the smoke inlet of dust-removal and desulfurizing heat riser, also be provided with dehydration tube and flue gas in described dust-removal and desulfurizing heat riser to heat up again room, the described flue gas again room of intensification is distributed between the smoke inlet of dust-removal and desulfurizing heat riser and the smoke inlet of first order dust-removal and desulfurizing cylinder, heat up the again purifying smoke entrance of room and the purifying smoke outlet of described flue gas is communicated with the exhanst gas outlet of afterbody dust-removal and desulfurizing cylinder and chimney respectively, wherein the discharge outlet of first order dust-removal and desulfurizing cylinder is communicated with outer circulation pond, the discharge outlet of all the other dust-removal and desulfurizing cylinders at different levels is communicated with Inner eycle pond, in described, outer circulation pond communicates with each other, and Inner eycle pond is also communicated with the water transport port of dust-removal and desulfurizing cylinder at different levels, described outer circulation pond is communicated with the first cyclone, the discharge outlet of described first cyclone is communicated with Inner eycle pond, concentrated solution outlet is communicated with oxidation pond, described oxidation pond is communicated with oxidation fan, the oxidation sweetening slag outlet of described oxidation pond is communicated with the second cyclone through filter pressing pump, the discharge outlet of described second cyclone is communicated with oxidation pond, concentrated solution outlet is communicated with filter press, the discharge outlet of described filter press is communicated with clear water reserviors, described clear water reserviors are communicated with respectively with Inner eycle pond and slurrying pond, and described slurrying pond is communicated with Inner eycle pond, and be also communicated with lime bin.
Wherein, described dust-removal and desulfurizing heat riser can also adopt any form known to industry, such as similar with Multistage desulfuration temperature rising integrated device described in CN201840968U structure.Such as, described multistage dust-removal and desulfurizing cylinder can comprise the first, second, third, fourth, the 5th, the 6th grade of dust-removal and desulfurizing cylinder be communicated with successively.
Wherein, the exhanst gas outlet of described sack cleaner is communicated with through the smoke inlet of air-introduced machine with dust-removal and desulfurizing heat riser.
Wherein, described filter press adopts vacuum belt press filter 16.
Wherein, described Inner eycle pond first internal circulation pump is communicated with the water transport port of dust-removal and desulfurizing cylinder at different levels, and described outer circulation pond second internal circulation pump is communicated with the first cyclone.
Further, the operation principle of this Multistage desulfuration system is as follows:
Boiler emission flue gas forms high-temperature flue gas and sends into dust-removal and desulfurizing heat riser by air-introduced machine after deduster dedusting, after 1#, 2#, 3#, 4#, 5#, 6# dust-removal and desulfurizing cylinder (hereinafter referred to as desulfurization cylinder) in this dust-removal and desulfurizing heat riser, dehydration tube, the flue gas returned in this dust-removal and desulfurizing heat riser high-temperature flue gas before room and dust-removal and desulfurizing that heats up again carries out heat exchange successively, finally enters smoke stack emission.
The water that 1# desulfurization cylinder flows out flows into outer circulation pond, is communicated with Inner eycle pond.The water of 2#, 3#, 4#, 5#, 6# desulfurization cylinder and dehydration tube flows into Inner eycle pond, returns 1#, 2#, 3#, 4#, 5#, 6# desulfurization cylinder by internal circulation pump.
Lime powder is drawn by tank car and squeezes into lime bin storage, control unloading valve according to the pH value in Inner eycle pond or sulfur dioxide emissioning concentration and regulate the amount of lime adding slurrying pond, by clarified water pump, the clear water be press-filtered out is squeezed into slurrying pond, the ororrhea making certain density flows to into Inner eycle pond.
Desulfurization slag squeezes into cyclone by outer circulation pump from outer circulation pond, and the concentrate flowed out bottom cyclone flows into oxidation pond aerating oxidation, and supernatant flows into Inner eycle pond; Squeeze into cyclone by filter pressing pump from oxidation pond after desulfurization slag oxidation in oxidation pond to be separated, bottom cyclone, water outlet is the bulky grain desulfurization slag slurries be concentrated, inflow vacuum belt press filter press dry, the current that cyclone apex flows out return oxidation pond and continue oxidation, and the desulfurization slag that filter press press dry is transported.Filter press filter liquor flows into clear water reserviors, squeezes into Inner eycle pond and lime slurrying by clarified water pump.
Should be appreciated that above-described embodiment is only and technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (9)
1. a Multistage desulfuration system, it is characterized in that comprising sack cleaner, dust-removal and desulfurizing heat riser, outer circulation pond, Inner eycle pond, oxidation pond and filter press, described sack cleaner is provided with smoke inlet, and the exhanst gas outlet of described sack cleaner is communicated with the multistage dust-removal and desulfurizing cylinder be located in dust-removal and desulfurizing heat riser successively through the smoke inlet of dust-removal and desulfurizing heat riser, also be provided with dehydration tube and flue gas in described dust-removal and desulfurizing heat riser to heat up again room, the described flue gas again room of intensification is distributed between the smoke inlet of dust-removal and desulfurizing heat riser and the smoke inlet of first order dust-removal and desulfurizing cylinder, heat up the again purifying smoke entrance of room and the purifying smoke outlet of described flue gas is communicated with the exhanst gas outlet of afterbody dust-removal and desulfurizing cylinder and chimney respectively, wherein the discharge outlet of first order dust-removal and desulfurizing cylinder is communicated with outer circulation pond, the discharge outlet of all the other dust-removal and desulfurizing cylinders at different levels is communicated with Inner eycle pond, in described, outer circulation pond communicates with each other, and Inner eycle pond is also communicated with the water transport port of dust-removal and desulfurizing cylinder at different levels, described outer circulation pond is communicated with the first cyclone, the discharge outlet of described first cyclone is communicated with Inner eycle pond, concentrated solution outlet is communicated with oxidation pond, the oxidation sweetening slag outlet of described oxidation pond is communicated with the second cyclone, the discharge outlet of described second cyclone is communicated with oxidation pond, concentrated solution outlet is communicated with filter press, the discharge outlet of described filter press is communicated with clear water reserviors, described clear water reserviors are communicated with respectively with Inner eycle pond and slurrying pond, and described slurrying pond is communicated with Inner eycle pond.
2. Multistage desulfuration system according to claim 1, is characterized in that described multistage dust-removal and desulfurizing cylinder comprises the first, second, third, fourth, the 5th, the 6th grade of dust-removal and desulfurizing cylinder be communicated with successively.
3. Multistage desulfuration system according to claim 1, is characterized in that the exhanst gas outlet of described sack cleaner is communicated with through the smoke inlet of air-introduced machine with dust-removal and desulfurizing heat riser.
4. Multistage desulfuration system according to claim 1, is characterized in that described filter press adopts vacuum belt press filter.
5. Multistage desulfuration system according to claim 1, is characterized in that described slurrying pond is communicated with lime bin.
6. Multistage desulfuration system according to claim 1, is characterized in that described Inner eycle pond first internal circulation pump is communicated with the water transport port of dust-removal and desulfurizing cylinder at different levels.
7. Multistage desulfuration system according to claim 1, is characterized in that described outer circulation pond second internal circulation pump is communicated with the first cyclone.
8. Multistage desulfuration system according to claim 1, is characterized in that described oxidation pond is communicated with oxidation fan.
9. Multistage desulfuration system according to claim 1, is characterized in that the oxidation sweetening slag outlet of described oxidation pond is communicated with the second cyclone through filter pressing pump.
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| CN201520266958.5U CN204601971U (en) | 2015-04-28 | 2015-04-28 | A kind of Multistage desulfuration system |
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| CN201520266958.5U CN204601971U (en) | 2015-04-28 | 2015-04-28 | A kind of Multistage desulfuration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578001A (en) * | 2021-07-29 | 2021-11-02 | 苏州迈沃环保工程有限公司 | Device and method for treating tail gas in aluminum phosphide production process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578001A (en) * | 2021-07-29 | 2021-11-02 | 苏州迈沃环保工程有限公司 | Device and method for treating tail gas in aluminum phosphide production process |
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Address after: 215000 room 2405, floor 24, building 1, Lingyu Business Plaza, No. 66, qinglonggang Road, high speed railway new town, Xiangcheng District, Suzhou, Jiangsu Province Patentee after: Suzhou Zhongmai New Energy Technology Co.,Ltd. Address before: 215000 Anmin Road, Huangdao Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU MOEWE ENVIRONMENTAL ENGINEERING Co.,Ltd. |