CN204891566U - Glass kiln gas cleaning device - Google Patents

Glass kiln gas cleaning device Download PDF

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Publication number
CN204891566U
CN204891566U CN201520567159.1U CN201520567159U CN204891566U CN 204891566 U CN204891566 U CN 204891566U CN 201520567159 U CN201520567159 U CN 201520567159U CN 204891566 U CN204891566 U CN 204891566U
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CN
China
Prior art keywords
flue gas
heat exchanger
controller
denitration
ammonia
Prior art date
Application number
CN201520567159.1U
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Chinese (zh)
Inventor
陈金东
王�忠
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江苏百川玻璃灯饰有限公司
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Priority to CN201520567159.1U priority Critical patent/CN204891566U/en
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Publication of CN204891566U publication Critical patent/CN204891566U/en

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    • Y02A50/2344

Abstract

The utility model discloses a glass kiln gas cleaning device, through adding controller, flue gas analyzer and flow control valve in the denitration subassembly, the supply volume that can establish the control with fixed set -point ammonia according to the NOX concentration in denitration reactor exit when guaranteeing NOX emission standard, has improved the utilization ratio of ammonia. The export at the sweetener simultaneously is equipped with the heat exchanger, and the heat that will follow the high temperature flue gas of output among the denitration reactor is transformed into the sweetener exit, has improved from the temperature of the flue gas of sweetener output, and then has improved the buoyancy of flue gas, has alleviated the corruption of sweetener low reaches flue and chimney, has reduced thermal waste in improve equipment life.

Description

Glass furnace fume purifier

Technical field

The utility model relates to industrial waste gas processing technology field, is specifically related to a kind of glass furnace fume purifier.

Background technology

Glass-melting furnace refers to the Thermal Equipment for fusion cast glass batch in glass manufacture, can discharge a large amount of flue gas in high temperature melt process, and the major pollutants in flue gas are SO 2, NO xand fine solid particle, if these pollutants are directly discharged in air will cause serious pollution to environment, do not meet sustainable development idea.The flue gas of discharging to purify glass furnace needs to carry out dedusting, denitration and desulfurization process to flue gas.At present conventional denitration technology is that ammonia and flue gas carry out catalytic selectivity reduction reaction under the effect of catalyst, but existing denitration technology can not the quantity delivered of conservative control ammonia.In addition, current most widely used desulfur technology is wet desulphurization, but lower through the flue-gas temperature of the method desulfurization, and buoyancy and the extension of flue gas are low, easily in desulphurization plant downstream flue and chimney, form condensation, Long-Time Service can cause desulphurization plant downstream flue and chimney to corrode.

Utility model content

In order to overcome prior art deficiency, the utility model provides a kind of glass furnace fume purifier, and object is the quantity delivered of ammonia in conservative control denitrating technique, improves the flue-gas temperature that wet desulphurization exports simultaneously.

Technical solution of the present utility model: glass furnace fume purifier, comprise electric cleaner, denitration assembly, desulphurization plant and chimney, the entrance of described electric cleaner and the outlet of kiln, described denitration assembly comprises Benitration reactor, ammonia tank, be located at the pressure-reducing valve on ammonia tank, the ammonia preheater be connected with pressure-reducing valve, described ammonia preheater is communicated with denitration reactor inlet by flow control valve, the outlet of described electric cleaner is communicated with denitration reactor inlet, it is characterized in that: the utility model also comprises heat exchanger, the high temperature inlet of described heat exchanger is communicated with out of stock reactor outlet, the low-temperature outlet of heat exchanger is communicated with the entrance of desulphurization plant, the flue gas that described desulphurization plant exports is input to chimney through heat exchanger again, described denitration assembly also comprises controller, described controller is connected with flow control valve, described controller comprises control module, comparison module and memory module, Benitration reactor exit NO is housed in described memory module xconcentration standard setting value, described electric cleaner exit and Benitration reactor exit are respectively equipped with flue gas analyzer one and flue gas analyzer two, and described flue gas analyzer one, flue gas analyzer two are connected with controller.

Preferred the utility model also comprises quenching and tempering device, and the outlet of described quenching and tempering device is communicated with the entrance of electric cleaner.

Also air-introduced machine is provided with between preferred described Benitration reactor and desulphurization plant.

Preferred described controller is PLC.

Preferred described heat exchanger is gas-gas heat exchanger.

The beneficial effects of the utility model: controller, flue gas analyzer and flow control valve in the assembly of denitration described in the utility model can according to the NO in Benitration reactor exit xconcentration set point controls the quantity delivered of ammonia, at guarantee NO xwhile discharge standard, improve the utilization rate of ammonia.Described heat exchanger, the heat of the high-temperature flue gas exported from Benitration reactor is transformed into desulphurization plant exit, improve the temperature of the flue gas exported from desulphurization plant, and then improve the buoyancy of flue gas, alleviate the corrosion of desulphurization plant downstream flue and chimney, while improving service life of equipment, decrease the waste of heat.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is described further: glass furnace fume purifier, comprises electric cleaner 1, quenching and tempering device 2, denitration assembly, desulphurization plant 3, heat exchanger 4 and chimney 5.The entrance of described electric cleaner 1 and the outlet of kiln 6, the outlet of described quenching and tempering device 2 is communicated with the entrance of electric cleaner 1, and described electric cleaner 1 exit is provided with flue gas analyzer 1.Described denitration assembly comprises Benitration reactor 8, controller 9, ammonia tank 10, the ammonia preheater 12 being located at the pressure-reducing valve 11 on ammonia tank 10 and being connected with pressure-reducing valve 11.Described ammonia preheater 12 is communicated with Benitration reactor 8 entrance by flow control valve 13, and the outlet of described electric cleaner 1 is communicated with Benitration reactor 8 entrance.The exit of described Benitration reactor 8 is provided with flue gas analyzer 2 14.Described flue gas analyzer 1, flue gas analyzer 2 14 are connected with controller 9 with flow control valve 13.Preferred described controller 9 is PLC, and described controller 9 comprises control module, comparison module and memory module, houses Benitration reactor 8 exit NO in described memory module xconcentration standard setting value.Also be provided with air-introduced machine 15 between described Benitration reactor 8 and desulphurization plant 3, preferred described air-introduced machine 15 is positioned at flue gas analyzer 2 14 downstream.Described heat exchanger 4 is gas-gas heat exchanger, the high temperature inlet of heat exchanger 4 and out of stock reactor 8 outlet, and the low-temperature outlet of heat exchanger 4 is communicated with the entrance of desulphurization plant 3, and the flue gas that described desulphurization plant 3 exports is input to chimney 5 through heat exchanger 4 again.

Specific works process:

From kiln 6 export flue gas through electric cleaner 1, fine particle in removing flue gas, quenching and tempering device 2 between kiln 6 and electric cleaner 1 is for changing coalescence characteristic and the charging performance of fine particle, and then raising efficiency of dust collection, alleviate the metal oxide such as calcic, sodium fine particle to the blockage of the micro orifice of catalyst.Flue gas is input to Benitration reactor 8 process from electric cleaner 1, and through flue gas analyzer 1, flue gas analyzer 1 is by the NO in the flue gas that analyzes xconcentration is transferred to controller 9, and controller 9 is according to the NO set in these data and controller 9 xwith the aperture of the burden control flow control valve 13 of ammonia, by appropriate ammonia input Benitration reactor 8, the mist of ammonia and flue gas is catalysed and reduced into N in Benitration reactor 8 under the effect of catalyst 2and H 2o, realizes the object of denitration.Flue gas after catalytic reduction is in input desulphurization plant 3 process, and through flue gas analyzer 2 14, flue gas analyzer 2 14 is by the NO in the flue gas that analyzes xcontroller 9 is transferred to, the NO that the comparison module in controller 9 will analyze with the concentration of ammonia xconcentration and memory module in the nitre reactor exit NO that deposits xconcentration standard setting value compares, and the concentration of the ammonia analyzed and zero is compared simultaneously, according to the aperture of comparative result adjustment flow control valve 13.As NO in flue gas xconcentration tune up the aperture of flow control valve when being greater than typical set value, as NO in flue gas xconcentration be equal to or less than typical set value and the concentration of ammonia is greater than zero time, turn the aperture of flow control valve down.Thus ensure that NO in the flue gas exported from Benitration reactor 8 xconcentration meet the standard value of setting, unnecessary ammonia can not be wasted simultaneously, improve the utilization rate of ammonia.The flue gas exported from Benitration reactor 8 inputs desulphurization plant 3 under the effect of air-introduced machine 15, flue gas before entering desulphurization plant 3 through heat exchanger 4, heat under the effect of heat exchanger in flue gas is transferred to the output of desulphurization plant 3, export from desulphurization plant 3 temperature entering the flue gas of chimney for improving, and then improve the buoyancy of flue gas, alleviate the corrosion of desulphurization plant downstream flue and chimney 5, while improving service life of equipment, decrease the waste of heat, meet sustainable development idea.

To sum up, the utility model produces a desired effect.

Claims (5)

1. glass furnace fume purifier, comprise electric cleaner, denitration assembly, desulphurization plant and chimney, the entrance of described electric cleaner and the outlet of kiln, described denitration assembly comprises Benitration reactor, ammonia tank, be located at the pressure-reducing valve on ammonia tank, the ammonia preheater be connected with pressure-reducing valve, described ammonia preheater is communicated with denitration reactor inlet by flow control valve, the outlet of described electric cleaner is communicated with denitration reactor inlet, it is characterized in that: also comprise heat exchanger, the high temperature inlet of described heat exchanger is communicated with out of stock reactor outlet, the low-temperature outlet of heat exchanger is communicated with the entrance of desulphurization plant, the flue gas that described desulphurization plant exports is input to chimney through heat exchanger again, described denitration assembly also comprises controller, described controller is connected with flow control valve, described controller comprises control module, comparison module and memory module, Benitration reactor exit NO is housed in described memory module xconcentration standard setting value, described electric cleaner exit and Benitration reactor exit are respectively equipped with flue gas analyzer one and flue gas analyzer two, and described flue gas analyzer one, flue gas analyzer two are connected with controller.
2. glass furnace fume purifier according to claim 1, is characterized in that: also comprise quenching and tempering device, and the outlet of described quenching and tempering device is communicated with the entrance of electric cleaner.
3. glass furnace fume purifier according to claim 1, is characterized in that: be also provided with air-introduced machine between Benitration reactor and desulphurization plant.
4. glass furnace fume purifier according to claim 1, is characterized in that: controller is PLC.
5. glass furnace fume purifier according to claim 1, is characterized in that: heat exchanger is gas-gas heat exchanger.
CN201520567159.1U 2015-07-31 2015-07-31 Glass kiln gas cleaning device CN204891566U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520567159.1U CN204891566U (en) 2015-07-31 2015-07-31 Glass kiln gas cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520567159.1U CN204891566U (en) 2015-07-31 2015-07-31 Glass kiln gas cleaning device

Publications (1)

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CN204891566U true CN204891566U (en) 2015-12-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105758204A (en) * 2016-04-20 2016-07-13 盐城工学院 Treatment and evaluation device and method for tunnel kiln flue gas
CN106139899A (en) * 2016-07-29 2016-11-23 南通天蓝环保能源成套设备有限公司 The SCR denitration control system of incinerator and method
CN108014615A (en) * 2018-01-09 2018-05-11 杭州临江环保热电有限公司 A kind of boiler waste gas processing system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105758204A (en) * 2016-04-20 2016-07-13 盐城工学院 Treatment and evaluation device and method for tunnel kiln flue gas
CN105758204B (en) * 2016-04-20 2018-02-23 盐城工学院 The processing of tunnel kiln smoke-gas and evaluating apparatus and method
CN106139899A (en) * 2016-07-29 2016-11-23 南通天蓝环保能源成套设备有限公司 The SCR denitration control system of incinerator and method
CN108014615A (en) * 2018-01-09 2018-05-11 杭州临江环保热电有限公司 A kind of boiler waste gas processing system
CN108014615B (en) * 2018-01-09 2020-04-07 杭州临江环保热电有限公司 Boiler waste gas treatment system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151223

Termination date: 20170731