CN203392849U - Byproduct steam hydrogen chloride synthetic system with tail gas treatment device - Google Patents
Byproduct steam hydrogen chloride synthetic system with tail gas treatment device Download PDFInfo
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- CN203392849U CN203392849U CN201320320246.8U CN201320320246U CN203392849U CN 203392849 U CN203392849 U CN 203392849U CN 201320320246 U CN201320320246 U CN 201320320246U CN 203392849 U CN203392849 U CN 203392849U
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- hydrogen chloride
- byproduct steam
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Abstract
The utility model discloses a byproduct steam hydrogen chloride synthetic system with a tail gas treatment device, and belongs to the field of chemical equipment. The byproduct steam hydrogen chloride synthetic system with the tail gas treatment device comprises a byproduct steam hydrogen chloride synthetic furnace and a steam pocket connected with the byproduct steam hydrogen chloride synthetic furnace as well as the tail gas treatment device, wherein the tail gas treatment device is connected with a hydrogen chloride gas outlet, namely a trichlorosilane synthetic furnace with silicon powder. The byproduct steam hydrogen chloride synthetic system provided by the utility model has the advantages that the steel water-cooling wall furnace cylinder is arranged on a high temperature region section of the synthetic furnace, a graphite material furnace cylinder is arranged on the top and bottom region sections of a synthetic section, the byproduct steam hydrogen chloride synthetic system overcomes the defects that the intensity of a graphite furnace cylinder is low, the operating temperature is limited and the top and bottom of the synthetic section are easy to corrode, the heat energy in the hydrogen chloride synthesis is fully utilized, and the hydrogen chloride tail gas after treatment is discharged through arranging the tail gas treatment device and can meet an environmental requirement.
Description
Technical field
The utility model relates to chemical industry equipment field, particularly a kind of byproduct steam hydrogenchloride synthesis system with exhaust gas processing device.
Background technology
When chlorine and hydrogen reaction generate hydrogenchloride, follow and discharge a large amount of reaction heat: 0.5H
2+ 0.5Cl
2=HCl-22.063Kcal/mol, often synthetic 1 kilogram of gaseous hydrogen chloride is emitted 605.11Kcal heat, is equivalent to the heat content of 0.95kg middle pressure steam.Chlorine and hydrogen react and generate hydrogenchloride with burning form in synthetic furnace, and flame kernel district temperature reaches more than 2500 ℃, and the hydrogen chloride gas temperature of generation is more than 2000 ℃, and these heats are considerable, can be used for byproduct steam completely.
Heat energy utilization in synthetic for hydrogenchloride, domesticly mainly contains two kinds of methods.A kind of is to use steel manufactured water jacket hydrogen chloride synthesizer by-product hot water.Another kind is to use the hydrogen chloride synthetic furnace by-product hot water of graphite-made or the steam of 0.2～0.3Mpa pressure.
In realizing process of the present utility model, contriver finds that prior art at least exists following problem:
Steel synthetic furnace holds corrosion-vulnerable in furnace roof portion and bottom, and work-ing life is short, and the hot water of by-product is of limited application.
Because graphite is non-brittleness material, be subject to the restriction of intensity and use temperature, as the pressure-containing parts steaming, there is certain hidden danger in safety in graphite furnace cylinder when byproduct steam.Hot water or the low-pressure steam range of application of the hydrogen chloride synthetic furnace by-product of employing graphite-made are limited equally.
Summary of the invention
In order to solve the problem of prior art, the utility model embodiment provides a kind of byproduct steam hydrogenchloride synthesis system with exhaust gas processing device.Described technical scheme is as follows:
The utility model embodiment provides a kind of byproduct steam hydrogenchloride synthesis system with exhaust gas processing device, described in there is exhaust gas processing device byproduct steam hydrogenchloride synthesis system comprise byproduct steam hydrogen chloride synthetic furnace and the drum being attached thereto;
The described byproduct steam hydrogenchloride synthesis system with exhaust gas processing device also comprises exhaust gas processing device, and described exhaust gas processing device is connected with hydrogen chloride gas outlet, is the trichlorosilane synthetic furnace with silica flour.
Particularly, the agent structure of described byproduct steam hydrogen chloride synthetic furnace is divided into synthetic combustion section, water wall steam generation section and hydrogenchloride cooling section from bottom to top;
At the bottom of described synthetic combustion section has graphite furnace, be provided with graphite furnace cylinder and bulb socket at the bottom of described graphite furnace, described bulb socket is connected with quartz lamp head;
Described graphite furnace bottom is provided with steel socket, and described graphite furnace cylinder periphery arranges outer steel shell, has cooling water channel between at the bottom of described outer steel shell and graphite furnace.
Particularly, described water wall steam generation section comprises water-cooled fireplace cylinder, and described water-cooled fireplace Tong upper end arranges upper end annular header tank, and described water-cooled fireplace Tong bottom arranges lower end annular header tank.
Particularly, the water-cooled fireplace cylinder that described water-cooled fireplace cylinder is steel.
Particularly, the outer setting of described hydrogenchloride cooling section has the outer steel shell of cooling-water duct, and the inside of described hydrogenchloride cooling section arranges graphite inwall.
Particularly, described hydrogenchloride cooling section has transition section, and described transition section top is provided with piece block hole type graphite heat transfer block, and described transition section one side is provided with hydrogen chloride gas outlet;
Described graphite heat exchange block has intermediate flow channel, and described graphite heat exchange block top is provided with upper cover.
Particularly, described drum is steam generation tripping device;
Described drum one end is provided with byproduct steam output tube, and the other end is provided with supplementary hose;
Described drum connects to form steam generating system by upcast, downtake and described water wall steam generation section.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The steel water-cooled fireplace cylinder arranging by synthetic furnace high temperature section, the graphite material stove cylinder that synthesis stage top and bottom section arrange, both overcome the low and restricted shortcoming of use temperature of graphite furnace cylinder intensity, overcome again synthesis stage top and bottom and held corrosion-prone shortcoming, the heat energy of hydrogenchloride in synthetic is fully used; By exhaust gas processing device is set, make to discharge again after hydrogen chloride tail gas processing again, meet environmental requirement.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the byproduct steam hydrogenchloride synthesis system with exhaust gas processing device that provides of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
The utility model embodiment provides a kind of byproduct steam hydrogenchloride synthesis system with exhaust gas processing device, referring to Fig. 1, described in there is exhaust gas processing device byproduct steam hydrogenchloride synthesis system comprise byproduct steam hydrogen chloride synthetic furnace 1, drum 2 and exhaust gas processing device 3.
Particularly, the agent structure of byproduct steam hydrogen chloride synthetic furnace 1 is divided into synthetic combustion section 11, water wall steam generation section 12, hydrogenchloride cooling section 13 from bottom to top; The top of synthetic combustion section 11 is provided with water wall steam generation section 12, and the top of water wall steam generation section 12 is provided with hydrogenchloride cooling section 13; Water wall steam generation section 12 forms steam generating system with drum 2.
Particularly, synthetic combustion section 11 has at the bottom of graphite furnace 111, at the bottom of graphite furnace, be provided with graphite furnace cylinder 112 on 111, at the bottom of graphite furnace, 111 bottoms are provided with bulb socket 113, bulb socket 113 is connected with quartz lamp head 114, graphite furnace Di111 end is provided with steel socket 115, and graphite furnace cylinder 112 peripheries are provided with outer steel shell 116, at the bottom of outer steel shell 116 and graphite furnace, between 111, have cooling water channel.
Wherein, synthetic combustion section 11 is interior graphite furnace is set at the bottom of 111, graphite furnace cylinder 112, make the bottom of byproduct steam hydrogen chloride synthetic furnace 1 be difficult for being chlorinated hydrogen-type corrosion.
Particularly, water wall steam generation section 12 comprises water-cooled fireplace cylinder 121, the water-cooled fireplace cylinder that water-cooled fireplace cylinder 121 is steel, water-cooled fireplace Tong121 upper end arranges upper end annular header tank 122, and water-cooled fireplace Tong121 bottom arranges lower end annular header tank 123; Water wall steam generation section 12 has steel water-cooled fireplace cylinder 121, its structure is the closed cylinder being welded into by fin seamless steel tube for boiler, in water-cooled fireplace cylinder steel pipe, after the reaction heat of soft water absorbing hydrogen chloride gas, rise, through upper condensate sump 122, collect and enter drum 2, part water is vaporized into steam output, and part Shui Yu lower end annular header tank 123 is pump around circuit together.
Particularly, hydrogenchloride cooling section 13 comprises transition section 131, and transition section 131 tops are provided with piece block hole type graphite heat transfer block 132, and piece block hole type graphite heat transfer block 132 has intermediate flow channel 130; Transition section 131 1 sides are provided with hydrogen chloride gas outlet 133, and graphite heat exchange block 132 tops are provided with upper cover 134, and the outer setting of hydrogenchloride cooling section 13 forms the outer steel shell 135 of cooling-water duct, and the inside of hydrogenchloride cooling section 13 arranges graphite inwall 136.
Wherein, at the interior graphite inwall 136 that arranges of hydrogenchloride cooling section 13, make the top of byproduct steam hydrogen chloride synthetic furnace 1 be difficult for being chlorinated hydrogen-type corrosion.
Particularly, drum 2 is steam generation tripping device, and the superheated water of being come by the water-cooled fireplace cylinder 121 of steel flashes off steam and exports in drum.Drum 2 connects to form steam generating system by upcast 124, downtake 125 with water wall steam generation section 12.Drum 2 one end are provided with byproduct steam output tube 21, and the other end is provided with and supplements hose 22.
Particularly, exhaust gas processing device 3 is connected with hydrogen chloride gas outlet 133, is the trichlorosilane synthetic furnace with silica flour.In trichlorosilane synthetic furnace, temperature is controlled at 80-310 ℃, and silica flour and hydrogenchloride react, and generates trichlorosilane and silicon tetrachloride.The trichlorosilane and the silicon tetrachloride gas that generate are removed dust and high chlorosilane through settling vessel, cyclonic separator and deep bed filter, pressurize, then be condensed into liquid with-35 ℃ of refrigerants through water-cooled by membrane compressor.Non-condensable gases enters tail gas eluting column by liquid seal can, discharge after soda acid drip washing is up to standard.Trichlorosilane and silicon tetrachloride compound (trichlorosilane content is 80-85%) enter pressurizing tower, adopt the separation of purifying continuously of two towers, by controlling certain reflux ratio, the product and the content of silicon tetrachloride that finally obtain trichlorosilane content and be and be more than 99% are more than 95% by product.
A kind of working process with the byproduct steam hydrogenchloride synthesis system of exhaust gas processing device that the utility model embodiment provides is: the chlorine, the hydrogen that by surge tank, are come enter in stove through bulb socket 113, the synthesizing chlorinated hydrogen that burns on quartz lamp head 114, hydrogen chloride gas upwards enters in the furnace chamber 120 of steam generation section 12; The heat of hydrogen chloride gas passes to the soft water in water-cooled fireplace cylinder 121, after the reaction heat of soft water absorbing hydrogen chloride gas, rise, through upper end annular header tank 122, assemble by upcast 124 and enter drum 2, part water is vaporized into steam through byproduct steam output tube 21 outputs, other soft water enters water-cooled fireplace cylinder lower end annular header tank 123 by downtake 125, again enter in water-cooled fireplace cylinder steel pipe, soft water relies on density difference constantly to complete self-circulation between drum and steam generation section; Circulation soft water, when absorbing heat generation steam, also cools down high-temp chlorination hydrogen.Through preliminary cooling hydrogen chloride gas, further upwards by intermediate flow channel 130, enter hydrogen chloride gas cooling section 13, after rising to top upper cover 134, turn back again downwards, cooling by water coolant heat exchange in graphite heat exchange block 132 longitudinal holes and graphite heat exchange block 132 transverse holes, arrive transition section 131 rear sides to exporting through hydrogen chloride gas outlet 133, cooled hydrogen chloride gas temperature can reach below 40 ℃, can, directly for follow-up, be not absorbed hydrogen chloride gas completely and discharge after exhaust gas processing device washing absorption is up to standard.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
1. heat utilization rate is high.Often synthetic 1t hydrogen chloride gas can by-product middle pressure steam 0.6～0.7t.The production 120t/d high purity hydrochloric acid of take is example, approximately 24 tons of hydrochloric acid synthesis system device full production producing steams in time, and steam unit price is in 150.00 yuan/ton, and year drives 330 days, approximately 1,180,000 yuan of year wound benefits; The production 160t/d hydrogenchloride of take is example, approximately 104 tons of hydrogenchloride synthesis system device full production producing steams in time, and steam unit price is in 150.00 yuan/ton, and year drives 330 days, approximately 514.8 ten thousand yuan of year wound benefits.
2. because the synthetic heat release major part of hydrogenchloride is used for occurring steam, compare with the conventional type of furnace, circulating cooling water consumption significantly reduces.With 160t/d hydrogen chloride synthetic furnace, calculate, the heat of output per hour is 4.026 * 106kcal/h, this part heat 68% left and right is taken away with the form of byproduct steam, if the mode with recirculated cooling water is moved heat, need to consume the cooling water inflow (recirculated cooling water temperature rise is by 6 ℃) of 458t/h, by general circulating water device configuration, need about 80kW power current, electricity price, by 0.5 yuan/degree, can be saved approximately 31.6 ten thousand yuan of electric power charges every year.
3. hydrogenchloride synthesis system by-product in, low-pressure steam can be directly incorporated in, low-pressure steam pipe network, and the synthetic furnace of by-product 0.2～0.3MPa steam need to be set up independent steam user network.This programme can be saved the investment of setting up independent steam pipe system.
4. the tail gas of hydrogen chloride synthetic furnace can be accomplished direct discharge up to standard, has not only reduced pollution, has also reduced the power consumption of hydraulic jet pump suction.
A kind of byproduct steam hydrogenchloride synthesis system with exhaust gas processing device that the utility model embodiment provides, the steel water-cooled fireplace cylinder arranging by synthetic furnace high temperature section, the graphite material stove cylinder that synthesis stage top and bottom section arrange, both overcome the low and restricted shortcoming of use temperature of graphite furnace cylinder intensity, overcome again synthesis stage top and bottom and held corrosion-prone shortcoming, thereby make the synthetic heat utilization rate of hydrogenchloride bring up to 70%, byproduct steam pressure can regulate between 0.8～1.4MPa, byproduct steam working pressure can regulate between 0.2～1.4MPa, in can being incorporated to, low pressure steam net is used, heat energy is fully used, by exhaust gas processing device is set, make to discharge again after hydrogen chloride tail gas processing again, meet environmental requirement.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a byproduct steam hydrogenchloride synthesis system with exhaust gas processing device, described in there is exhaust gas processing device byproduct steam hydrogenchloride synthesis system comprise byproduct steam hydrogen chloride synthetic furnace and the drum being attached thereto; It is characterized in that,
The described byproduct steam hydrogenchloride synthesis system with exhaust gas processing device also comprises exhaust gas processing device, and described exhaust gas processing device is connected with hydrogen chloride gas outlet, is the trichlorosilane synthetic furnace with silica flour.
2. the byproduct steam hydrogenchloride synthesis system with exhaust gas processing device according to claim 1, is characterized in that,
The agent structure of described byproduct steam hydrogen chloride synthetic furnace is divided into synthetic combustion section, water wall steam generation section and hydrogenchloride cooling section from bottom to top;
At the bottom of described synthetic combustion section has graphite furnace, be provided with graphite furnace cylinder and bulb socket at the bottom of described graphite furnace, described bulb socket is connected with quartz lamp head;
Described graphite furnace bottom is provided with steel socket, and described graphite furnace cylinder periphery arranges outer steel shell, has cooling water channel between at the bottom of described outer steel shell and graphite furnace.
3. the byproduct steam hydrogenchloride synthesis system with exhaust gas processing device according to claim 2, it is characterized in that, described water wall steam generation section comprises water-cooled fireplace cylinder, described water-cooled fireplace Tong upper end arranges upper end annular header tank, and described water-cooled fireplace Tong bottom arranges lower end annular header tank.
4. the byproduct steam hydrogenchloride synthesis system with exhaust gas processing device according to claim 3, is characterized in that, the water-cooled fireplace cylinder that described water-cooled fireplace cylinder is steel.
5. the byproduct steam hydrogenchloride synthesis system with exhaust gas processing device according to claim 2, is characterized in that, the outer setting of described hydrogenchloride cooling section has the outer steel shell of cooling-water duct, and the inside of described hydrogenchloride cooling section arranges graphite inwall.
6. the byproduct steam hydrogenchloride synthesis system with exhaust gas processing device according to claim 2, is characterized in that,
Described hydrogenchloride cooling section has transition section, and described transition section top is provided with piece block hole type graphite heat transfer block, and described transition section one side is provided with hydrogen chloride gas outlet;
Described graphite heat exchange block has intermediate flow channel, and described graphite heat exchange block top is provided with upper cover.
7. the byproduct steam hydrogenchloride synthesis system with exhaust gas processing device according to claim 2, is characterized in that,
Described drum is steam generation tripping device;
Described drum one end is provided with byproduct steam output tube, and the other end is provided with supplementary hose;
Described drum connects to form steam generating system by upcast, downtake and described water wall steam generation section.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320320246.8U CN203392849U (en) | 2013-06-05 | 2013-06-05 | Byproduct steam hydrogen chloride synthetic system with tail gas treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320320246.8U CN203392849U (en) | 2013-06-05 | 2013-06-05 | Byproduct steam hydrogen chloride synthetic system with tail gas treatment device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950892A (en) * | 2014-03-23 | 2014-07-30 | 德阳劲达节能科技有限责任公司 | All-steel hydrogen chloride synthesis furnace device |
| CN107055472A (en) * | 2017-03-09 | 2017-08-18 | 江苏大和氯碱化工有限公司 | A kind of byproduct steam hydrochloric acid synthesis system |
| CN107416840A (en) * | 2017-06-26 | 2017-12-01 | 张兆民 | A kind of polycrystalline silicon material method of purification |
-
2013
- 2013-06-05 CN CN201320320246.8U patent/CN203392849U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950892A (en) * | 2014-03-23 | 2014-07-30 | 德阳劲达节能科技有限责任公司 | All-steel hydrogen chloride synthesis furnace device |
| CN103950892B (en) * | 2014-03-23 | 2016-06-22 | 德阳劲达节能科技有限责任公司 | All-steel hydrogen chloride synthesis furnace apparatus |
| CN107055472A (en) * | 2017-03-09 | 2017-08-18 | 江苏大和氯碱化工有限公司 | A kind of byproduct steam hydrochloric acid synthesis system |
| CN107416840A (en) * | 2017-06-26 | 2017-12-01 | 张兆民 | A kind of polycrystalline silicon material method of purification |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20140605 |