CN203612973U - Device for separating and recycling waste ammonia gas discharged in process of LED (light-emitting diode) production through membrane components - Google Patents

Device for separating and recycling waste ammonia gas discharged in process of LED (light-emitting diode) production through membrane components Download PDF

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Publication number
CN203612973U
CN203612973U CN201320720997.9U CN201320720997U CN203612973U CN 203612973 U CN203612973 U CN 203612973U CN 201320720997 U CN201320720997 U CN 201320720997U CN 203612973 U CN203612973 U CN 203612973U
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China
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ammonia
ammonia water
led
membrane separation
entrance
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CN201320720997.9U
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Chinese (zh)
Inventor
金向华
李荷庆
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Jinhong Gas Co ltd
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Suzhou Jinhong Gas Co Ltd
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Abstract

The utility model discloses a device for separating and recycling waste ammonia gas discharged in the process of LED (light-emitting diode) production through membrane components. The device comprises an air temperature type gas cooler, a precision filter, a booster fan, membrane separation components, ammonia water circulating tanks, ammonia water circulating pumps, plate heat exchangers, a freezing machine unit, a freezing water circulating pump, a saturated ammonia water tank and a saturated ammonia water output pump, wherein the air outlet of the air temperature type gas cooler is connected with the inlet of the precision filter, the outlet of the precision filter is connected with the inlet of the booster fan, the outlet of the booster fan is connected with the inlet of one membrane separation component, the outlets of the membrane separation components are connected with the inlets of the ammonia water circulating tanks, and the ammonia water circulating pumps are arranged at the outlets of the ammonia water circulating tanks; two pipelines are arranged on each ammonia water circulating pump, one pipeline is connected with the inlet of one plate heat exchanger, the outlet of one plate heat exchanger is connected with the inlet of the freezing machine unit, and the other pipeline is connected with the inlet of the saturated ammonia water tank. According to the device, the waste ammonia gas discharged in the process of LED production can be absorbed into ammonia water by the membrane components, the absorption rate can reach 99.9%, and the ammonia water concentration can reach about 25%, so that the environment problem caused by discharging waste ammonia gas in the process of LED production can be solved, and the recycle utilization rate is high.

Description

A kind of membrane component of using is from the device that reclaims the useless ammonia of discharge in LED production
Technical field
The utility model relates in LED production processes waste gas technical field, and particularly a kind of components apart that adopts hydrophilic hollow fibre film composition reclaims the device that discharges the ammonia that gives up in LED production.
Background technology
(LED) main raw material(s) of photodiode in gas-phase deposition is ultra-pure ammonia, nitrogen, hydrogen, MO source.The at high temperature vapour deposition of trimethyl-gallium and ammonia generates gan.
And in order to make full use of the MO source that price is more expensive, it is greatly excessive to need in ultra-pure ammonia vapour deposition, the utilization ratio in whole reaction process is less than 1%, and the ammonia of redundance is discharged together with carrier gas nitrogen, hydrogen.And ammonia is obnoxious flavour environmental protection treatment in addition, can legal discharge.The method of processing at present LED production discharging waste gas has: the one, discharge ammonia is neutralized with sulfuric acid, and the later waste liquid of neutralization enters sewage work and processes; The 2nd, adopt packing tower that discharge ammonia is absorbed as to ammoniacal liquor, ammoniacal liquor is undersold; The 3rd, adopt film-falling absorption tower will discharge ammonia and absorb into ammoniacal liquor, ammoniacal liquor is undersold;
Because the neutralisation in aforesaid method is to transfer the pollution, environmental issue is not solved at all.And the method for two absorption ammoniacal liquor, because the ammonia concentration in LED discharging waste gas is only less than 20%, all the other nitrogen, density of hydrogen have reached 80% left and right, cause the solubleness of ammonia in water greatly to reduce, and are less than 10%, and the added value of ammoniacal liquor is extremely low.Due to the reduction that the ammonia in waste gas dissolves in water, in the end in qualified discharge process, must use sulfuric acid to neutralize.Still had a strong impact on environment, and recovery utilization rate is low.
Utility model content
Utility model object of the present utility model is the shortcoming in order to overcome above-mentioned background technology, the membrane module that adopts hydrophilic hollow fibre film composition is provided, ammonia during LED is produced in the mixed gas of the nitrogen of discharge, hydrogen, ammonia is absorbed as ammoniacal liquor, nitrogen in mixed gas, hydrogen are discharged at another of film due to not hydrophilic, the device that makes LED process gas be reclaimed and purify.
The technical solution of the utility model is: a kind of membrane component of using is from the device that reclaims the useless ammonia of discharge in LED production, it comprises: air temperature type gas cooler, accurate filter, booster fan, membrane separation assemblies, ammonia circulation tank, ammonia circulation pump, plate-type heat exchanger, freezing unit, chilled water circulating pump, saturated ammonia water pot, saturated ammoniacal liquor Send out pump, described air temperature type gas cooler air outlet is connected with accurate filter entrance, accurate filter outlet connects booster fan entrance, booster fan outlet junctional membrane separation assembly entrance, membrane separation assemblies outlet connects ammonia circulation tank entrance, ammonia circulation tank exit is provided with ammonia circulation pump, ammonia circulation pump is provided with two pipelines, a wherein pipeline connecting plate type heat exchanger entrance, plate-type heat exchanger outlet connects freezing unit entrance, another pipeline connects saturated ammonia water pot entrance.
Described freezing unit exit is provided with chilled water circulating pump, and saturated ammonia water pot exit is provided with saturated ammoniacal liquor Send out pump.
Described air temperature type gas cooler is finned air vaporizer.
Described booster fan is that its force value of aluminium alloy booster fan is minimum for 0.01MPa, is 0.05MPa to the maximum.
Described membrane separation assemblies adopts hydrophilic hollow fibre film.
The water temperature span of control of described freezing unit be minimum be 0 ℃, be up to 2 ℃.
Described membrane separation assemblies is minimum is one group, and every group of membrane separation assemblies all connects ammonia circulation tank and connect ammonia circulation pump again, ammonia circulation pump connecting plate type interchanger.
The beneficial effects of the utility model are: the utility model membrane module can reach 99.9% by the specific absorption that in LED production, the useless ammonia of discharge is absorbed as ammoniacal liquor, ammonia concn can reach 25% left and right, solved the environmental issue of the useless ammonia of discharge during LED produces, and recovery utilization rate is high.
Accompanying drawing explanation
Fig. 1 is five groups of membrane separation assemblies structural representations that the utility model adopts;
Fig. 2 is that the utility model adopts single mode separation assembly structural representation;
Wherein: 1, air temperature type gas cooler, 2, accurate filter, 3, booster fan, 4, membrane separation assemblies, 5, ammonia circulation tank, 6, ammonia circulation pump, 7, plate-type heat exchanger, 8, freezing unit, 9, chilled water circulating pump, 10, saturated ammonia water pot, 11, saturated ammoniacal liquor Send out pump.
Embodiment
The present embodiment be a kind of with membrane component from reclaim LED produce in the device of the useless ammonia of discharge, it comprises: air temperature type gas cooler (1), accurate filter (2), booster fan (3), membrane separation assemblies (4), ammonia circulation tank (5), ammonia circulation pump (6), plate-type heat exchanger (7), freezing unit (8), chilled water circulating pump (9), saturated ammonia water pot (10), saturated ammoniacal liquor Send out pump (11).
As shown in Figure 1, air temperature type gas cooler (1) is that its air outlet of finned air vaporizer is connected with accurate filter (2) entrance, accurate filter (2) outlet connects booster fan (3) entrance, booster fan (3) outlet junctional membrane separation assembly (4) entrance, described membrane separation assemblies (4) adopts hydrophilic hollow fibre film, membrane separation assemblies (4) outlet connects ammonia circulation tank (5) entrance, ammonia circulation tank (5) exit is provided with ammonia circulation pump (6), ammonia circulation pump (6) is provided with two pipelines, a wherein pipeline connecting plate type interchanger (7) entrance, plate-type heat exchanger (7) outlet connects freezing unit (8) entrance, described freezing unit (8) exit is provided with chilled water circulating pump (9), another pipeline connects saturated ammonia water pot (10) entrance, and saturated ammonia water pot (10) exit is provided with saturated ammoniacal liquor Send out pump (11).
Membrane separation assemblies (4) is that one group of membrane separation assemblies (4) all connects ammonia circulation tank (5) and connects ammonia circulation pump (6), ammonia circulation pump (6) connecting plate type interchanger (7) again as shown in Figure 2.

Claims (7)

  1. One kind with membrane component from reclaim LED produce in the device of the useless ammonia of discharge, it comprises: air temperature type gas cooler, accurate filter, booster fan, membrane separation assemblies, ammonia circulation tank, ammonia circulation pump, plate-type heat exchanger, freezing unit, chilled water circulating pump, saturated ammonia water pot, saturated ammoniacal liquor Send out pump, it is characterized in that described air temperature type gas cooler air outlet is connected with accurate filter entrance, accurate filter outlet connects booster fan entrance, booster fan outlet junctional membrane separation assembly entrance, membrane separation assemblies outlet connects ammonia circulation tank entrance, ammonia circulation tank exit is provided with ammonia circulation pump, ammonia circulation pump is provided with two pipelines, a wherein pipeline connecting plate type heat exchanger entrance, plate-type heat exchanger outlet connects freezing unit entrance, another pipeline connects saturated ammonia water pot entrance.
  2. 2. a kind of membrane component of using according to claim 1 is from the device that reclaims the useless ammonia of discharge in LED production, and the freezing unit exit described in it is characterized in that is provided with chilled water circulating pump, and saturated ammonia water pot exit is provided with saturated ammoniacal liquor Send out pump.
  3. 3. a kind of membrane component of using according to claim 1 is from the device that reclaims the useless ammonia of discharge in LED production, and the air temperature type gas cooler described in it is characterized in that is finned air vaporizer.
  4. 4. a kind of membrane component of using according to claim 1 is from the device that reclaims the useless ammonia of discharge in LED production, and the booster fan described in it is characterized in that is the minimum 0.01MPa of being of its force value of aluminium alloy booster fan, is 0.05MPa to the maximum.
  5. 5. a kind of membrane component of using according to claim 1 is from the device that reclaims the useless ammonia of discharge in LED production, and the membrane separation assemblies described in it is characterized in that adopts hydrophilic hollow fibre film.
  6. According to claim 1 a kind of with membrane component from reclaim LED produce in the device of the useless ammonia of discharge, the water temperature span of control that it is characterized in that described freezing unit be minimum be 0 ℃, be up to 2 ℃.
  7. 7. a kind of membrane component of using according to claim 1 is from the device that reclaims the useless ammonia of discharge in LED production, it is characterized in that described membrane separation assemblies minimum be one group, every group of membrane separation assemblies all connects ammonia circulation tank and connects ammonia circulation pump again, ammonia circulation pump connecting plate type interchanger.
CN201320720997.9U 2013-11-15 2013-11-15 Device for separating and recycling waste ammonia gas discharged in process of LED (light-emitting diode) production through membrane components Expired - Lifetime CN203612973U (en)

Priority Applications (1)

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CN201320720997.9U CN203612973U (en) 2013-11-15 2013-11-15 Device for separating and recycling waste ammonia gas discharged in process of LED (light-emitting diode) production through membrane components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320720997.9U CN203612973U (en) 2013-11-15 2013-11-15 Device for separating and recycling waste ammonia gas discharged in process of LED (light-emitting diode) production through membrane components

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CN203612973U true CN203612973U (en) 2014-05-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103818930A (en) * 2013-11-15 2014-05-28 苏州金宏气体股份有限公司 Device for separating and recycling waste ammonia discharged during LED (light emitting diode) production through membrane component and operating method of device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103818930A (en) * 2013-11-15 2014-05-28 苏州金宏气体股份有限公司 Device for separating and recycling waste ammonia discharged during LED (light emitting diode) production through membrane component and operating method of device

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C14 Grant of patent or utility model
GR01 Patent grant
CP03 Change of name, title or address

Address after: 215152 Anmin Road, Panyang Industrial Park, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province

Patentee after: Jinhong Gas Co.,Ltd.

Address before: 215143 No. 6 Anmin Road, Panyang Industrial Park, Huangduo Town, Xiangcheng District, Suzhou City, Jiangsu Province

Patentee before: SUZHOU JINHONG GAS Co.,Ltd.

CP03 Change of name, title or address
CX01 Expiry of patent term

Granted publication date: 20140528

CX01 Expiry of patent term