CN203678225U - Experimental apparatus for recovering light-emitting diode LED discharged waste ammonia gas as ammonia water - Google Patents
Experimental apparatus for recovering light-emitting diode LED discharged waste ammonia gas as ammonia water Download PDFInfo
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- CN203678225U CN203678225U CN201320789142.1U CN201320789142U CN203678225U CN 203678225 U CN203678225 U CN 203678225U CN 201320789142 U CN201320789142 U CN 201320789142U CN 203678225 U CN203678225 U CN 203678225U
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- Prior art keywords
- ammonia
- absorption tower
- gas
- ammonia absorption
- steel cylinder
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 235000011114 ammonium hydroxide Nutrition 0.000 title claims abstract description 23
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 title abstract description 9
- 239000002699 waste material Substances 0.000 title abstract description 7
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 81
- 238000010521 absorption reaction Methods 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 239000001257 hydrogen Substances 0.000 claims abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract 2
- 238000007710 freezing Methods 0.000 abstract 2
- 238000004064 recycling Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 238000013022 venting Methods 0.000 abstract 1
- 239000008246 gaseous mixture Substances 0.000 description 6
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910002601 GaN Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Sorption Type Refrigeration Machines (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses an experimental apparatus for recovering light-emitting diode (LED) discharged waste ammonia gas as ammonia water. The experimental apparatus comprises a high-purity ammonia steel bottle, a high-purity nitrogen steel bottle, a high-purity hydrogen steel bottle, a gas mixer, a freezing device, an ammonia gas absorption tower, an ammonia water circulating pump and a tail gas absorption plant, wherein gases of the high-purity ammonia steel bottle, the high-purity nitrogen steel bottle and the high-purity hydrogen steel bottle are connected to an inlet of the gas mixer; an outlet of the gas mixer is connected to a gas inlet of the ammonia gas absorption tower; the freezing device is connected to a coil on the inner side of the bottom of the ammonia gas absorption tower; an inlet of the ammonia water circulating pump is communicated with a bottommost part of the ammonia gas absorption tower, and an outlet is connected to a spraying device above a packing layer at the top end of the ammonia gas absorption tower; the tail gas absorption plant is connected to a venting port at the top of the ammonia gas absorption tower. The experimental apparatus disclosed by the utility model is low in investment, small in size and light in weight, and is capable of effectively removing a waste ammonia mixed gas discharged by an LED plant, so that an ammonia water recovery rate is above 98% and ammonia water concentration is 25%, thus meeting requirements of customers on waste ammonia gas emission; meanwhile, the device disclosed by the utility model can prepare raw material ammonia water from the waste ammonia mixed gas having no economic value, thus recycling waste materials and creating a certain economic benefit.
Description
Technical field
The utility model relates to waste gas and reclaims field, the device that particularly the useless Ammonia recovery of a kind of LED discharge is ammoniacal liquor.
Background technology
Ammonia is a large amount of gas using in MOCVD technique.MOCVD is a kind of Novel air phase epitaxy growing technology growing up on the basis of vapor phase epitaxial growth, utilizes ammonia to act on trimethyl gallium that on sapphire, to form gallium nitride light-emitting diode by vapor phase growth be LED.Recognize that from LED factory every MOCVD uses ultra-pure ammonia approximately 40 ㎏ every day, almost all need to discharge.Therefore, directly discharge or need useless ammonia amount to be processed to reach more than 20,000 tons from LED factory every year.The main method of processing at present LED factory ammonia has acid wash, membrane absorption method and combustion method.Acid wash not only needs to lay in a large amount of sulfuric acid, and the ammonium sulfate generating is starved very difficult sale; Combustion method can generate oxynitrides, also can produce certain pollution, and treatment facility cost is higher to atmosphere, and energy consumption is also larger; Membrane absorption method can be prepared the ammoniacal liquor of 22% left and right, but equipment cost is higher, and occupation area of equipment is excessive.Therefore, solving MOCVD fire grate puts the recovery problem of useless ammonia and has become LED manufacturer, possession environmental administration, social environment problem in the urgent need to address.
Utility model content
The purpose of this utility model is the shortcoming in order to overcome above-mentioned background technology, and a kind of LED discharge device that useless Ammonia recovery is ammoniacal liquor is provided, and solves the market demand of LED industry to useless ammonia gaseous mixture processing.
The technical solution of the utility model is: the experimental provision that the useless Ammonia recovery of a kind of LED discharge is ammoniacal liquor, and it comprises: high-purity ammon steel cylinder, High Purity Nitrogen steel cylinder, High Purity Hydrogen steel cylinder, gas mixer, refrigerating plant, ammonia absorption tower, ammonia circulation pump, device for absorbing tail gas, Mini-adjustable valve, Pressure gauge, spinner flowmeter, stop valve, described high-purity ammon steel cylinder, High Purity Nitrogen steel cylinder, High Purity Hydrogen steel cylinder connects gas mixer air inlet by three pipelines respectively, on every pipeline, be all connected with Mini-adjustable valve, described Mini-adjustable valve Bonding pressure table, Pressure gauge connects spinner flowmeter, described ammonia absorption tower inner tip is that packing layer is provided with spray equipment, bottom is provided with coil pipe, described gas mixer gas outlet connects 10cm place, inner tip packing layer below, ammonia absorption tower, described refrigerating plant is connected with the coil pipe of ammonia absorption tower inner bottom, described ammonia circulation pump inlet is communicated with ammonia absorption tower bottommost, outlet is connected with the spray equipment on the apex filler layer of ammonia absorption tower, described top, ammonia absorption tower is provided with blowdown piping, and this blowdown piping is connected with device for absorbing tail gas.
Described ammonia circulation pump is provided with stop valve with the pipeline that the spray equipment on the apex filler layer of ammonia absorption tower is connected, and is also provided with a blowdown piping, and blowdown piping is provided with Mini-adjustable valve.
The blowdown piping that described top, ammonia absorption tower is connected with device for absorbing tail gas is provided with Pressure gauge, and Pressure gauge rear end connects Mini-adjustable valve.
Described ammonia absorption tower apex filler layer is 700Y plastic silk screen ripple.
The beneficial effects of the utility model are: the utility model small investment, volume is little, quality is light, can effectively remove the useless ammonia gaseous mixture of LED factory discharge, make to reclaim ammoniacal liquor rate and reach more than 98%, and ammonia concn reaches 25%, meet the requirement of client to useless ammonia emission; Meanwhile, adopt this device, will have no the useless ammonia gaseous mixture of economic worth and prepare raw material ammonia water, turn waste into wealth, created certain economic benefit.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Wherein: 1, high-purity ammon steel cylinder, 2, High Purity Nitrogen steel cylinder, 3, High Purity Hydrogen steel cylinder, 4, gas mixer, 5, refrigerating plant, 6, ammonia absorption tower, 7, ammonia circulation pump, 8, device for absorbing tail gas, 9, Mini-adjustable valve, 10, Pressure gauge, 11, spinner flowmeter, 12, Pressure gauge, 13, Mini-adjustable valve, 14, stop valve, 15, Mini-adjustable valve.
The specific embodiment
The present embodiment is the experimental provision that the useless Ammonia recovery of a kind of LED discharge is ammoniacal liquor, and it comprises: high-purity ammon steel cylinder (1), High Purity Nitrogen steel cylinder (2), High Purity Hydrogen steel cylinder (3), gas mixer (4), refrigerating plant (5), ammonia absorption tower (6), ammonia circulation pump (7), device for absorbing tail gas (8), Mini-adjustable valve (9), Pressure gauge (10), spinner flowmeter (11), stop valve (14).
As shown in Figure 1, high-purity ammon steel cylinder (1), High Purity Nitrogen steel cylinder (2), High Purity Hydrogen steel cylinder (3) connects gas mixer (4) air inlet by three pipelines respectively, on every pipeline, be all connected with Mini-adjustable valve (9), described Mini-adjustable valve (9) Bonding pressure table (10), Pressure gauge (10) connects spinner flowmeter (11), described ammonia absorption tower (6) inner tip is that packing layer is provided with spray equipment, bottom is provided with coil pipe, described gas mixer (4) gas outlet connects 10cm place, inner tip packing layer below, ammonia absorption tower (6), described refrigerating plant (5) is connected with the coil pipe of ammonia absorption tower (6) inner bottom, described ammonia circulation pump (7) import is communicated with ammonia absorption tower (6) bottommost, outlet is connected with the spray equipment on the apex filler layer of ammonia absorption tower (6), the systemic ammoniacal liquor in ammonia absorption tower (6) is by ammonia circulation pump (7) circulation, described top, ammonia absorption tower (6) is provided with blowdown piping, this blowdown piping is connected with device for absorbing tail gas (8), ammonia circulation pump (7) is provided with stop valve (14) with the pipeline that the spray equipment on the apex filler layer of ammonia absorption tower (6) is connected, and is also provided with a blowdown piping, and blowdown piping is provided with Mini-adjustable valve (15), the blowdown piping that top, ammonia absorption tower (6) is connected with device for absorbing tail gas (8) is provided with Pressure gauge (12), and Pressure gauge (12) rear end connects Mini-adjustable valve (13).
By Mini-adjustable valve (9) and the spinner flowmeter (11) of adjustments of gas blender (4) front end, control ammonia, the proportioning of nitrogen and hydrogen, entering gas mixer (4) with a certain proportion of three strands of gas fully mixes, the gaseous mixture (ammonia volume fraction 13～20%) obtaining enters bottom, ammonia absorption tower (6), gaseous mixture rises and fully contacts with the 700Y plastic silk screen ripple packing on top, ammonia absorption tower (6), the chilled water of bottom, ammonia absorption tower (6) arrives ammonia absorption tower (6) tower top spray by ammonia circulation pump (7), fully contact with the gaseous mixture rising on bottom, ammonia absorption tower (6) and absorb ammonia, ammoniacal liquor in ammonia absorption tower (6) is controlled at-5～0 ℃ by refrigerating plant (5).In the time that ammonia concn reaches 25%, by Mini-adjustable valve (15) discharging, then ammonia absorption tower (6) bottom is supplemented to chilled water, tower top is exhaust emissions, enters the device for absorbing tail gas (8) that dilute sulfuric acid is housed and absorbs.
Can reclaim the useless ammonia of LED discharge more than 98% by this device, meet the technical indicator of LED company to useless ammonia emission, and be recovered to raw material ammonia water, create higher economic benefit.Calculate with a LED company that has 50 MOCVD stoves, annual recyclable 25% ammoniacal liquor 2000t, the creation of value is recoverable cost in nearly 200,000, one to two years, has solved the useless ammonia emission problem of LED company simultaneously.
Claims (4)
1. the experimental provision that the useless Ammonia recovery of LED discharge is ammoniacal liquor, it comprises: high-purity ammon steel cylinder, High Purity Nitrogen steel cylinder, High Purity Hydrogen steel cylinder, gas mixer, refrigerating plant, ammonia absorption tower, ammonia circulation pump, device for absorbing tail gas, Mini-adjustable valve, Pressure gauge, spinner flowmeter, stop valve, is characterized in that described high-purity ammon steel cylinder, High Purity Nitrogen steel cylinder, High Purity Hydrogen steel cylinder connects gas mixer air inlet by three pipelines respectively, on every pipeline, be all connected with Mini-adjustable valve, described Mini-adjustable valve Bonding pressure table, Pressure gauge connects spinner flowmeter, described ammonia absorption tower inner tip is that packing layer is provided with spray equipment, bottom is provided with coil pipe, described gas mixer gas outlet connects 10cm place, inner tip packing layer below, ammonia absorption tower, described refrigerating plant is connected with the coil pipe of ammonia absorption tower inner bottom, described ammonia circulation pump inlet is communicated with ammonia absorption tower bottommost, outlet is connected with the spray equipment on the apex filler layer of ammonia absorption tower, described top, ammonia absorption tower is provided with blowdown piping, and this blowdown piping is connected with device for absorbing tail gas.
2. the experimental provision that the useless Ammonia recovery of LED discharge according to claim 1 is ammoniacal liquor, it is characterized in that described ammonia circulation pump is provided with stop valve with the pipeline that the spray equipment on the apex filler layer of ammonia absorption tower is connected, also be provided with a blowdown piping, blowdown piping is provided with Mini-adjustable valve.
3. the experimental provision that the useless Ammonia recovery of LED discharge according to claim 1 is ammoniacal liquor, is characterized in that the blowdown piping that described top, ammonia absorption tower is connected with device for absorbing tail gas is provided with Pressure gauge, and Pressure gauge rear end connects Mini-adjustable valve.
4. the experimental provision that the useless Ammonia recovery of LED discharge according to claim 1 is ammoniacal liquor, is characterized in that described ammonia absorption tower apex filler layer is 700Y plastic silk screen ripple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789142.1U CN203678225U (en) | 2013-12-05 | 2013-12-05 | Experimental apparatus for recovering light-emitting diode LED discharged waste ammonia gas as ammonia water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789142.1U CN203678225U (en) | 2013-12-05 | 2013-12-05 | Experimental apparatus for recovering light-emitting diode LED discharged waste ammonia gas as ammonia water |
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| Publication Number | Publication Date |
|---|---|
| CN203678225U true CN203678225U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320789142.1U Expired - Lifetime CN203678225U (en) | 2013-12-05 | 2013-12-05 | Experimental apparatus for recovering light-emitting diode LED discharged waste ammonia gas as ammonia water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203678225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111803857A (en) * | 2020-05-28 | 2020-10-23 | 南通大学 | Aluminum ash harmless treatment recycling system and working method thereof |
| CN112209407A (en) * | 2019-07-10 | 2021-01-12 | 赣州力信达冶金科技有限公司 | Method for converting ammonia tail gas into concentrated ammonia water |
-
2013
- 2013-12-05 CN CN201320789142.1U patent/CN203678225U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112209407A (en) * | 2019-07-10 | 2021-01-12 | 赣州力信达冶金科技有限公司 | Method for converting ammonia tail gas into concentrated ammonia water |
| CN111803857A (en) * | 2020-05-28 | 2020-10-23 | 南通大学 | Aluminum ash harmless treatment recycling system and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140702 |
|
| CX01 | Expiry of patent term |