CN108159845A - The device and technique of tail gas during a kind of recycling purification cubic boron nitride - Google Patents
The device and technique of tail gas during a kind of recycling purification cubic boron nitride Download PDFInfo
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- CN108159845A CN108159845A CN201711403220.9A CN201711403220A CN108159845A CN 108159845 A CN108159845 A CN 108159845A CN 201711403220 A CN201711403220 A CN 201711403220A CN 108159845 A CN108159845 A CN 108159845A
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- tail gas
- boron nitride
- water
- cubic boron
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
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- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention provides the devices and technique that a kind of recycling purifies tail gas during cubic boron nitride, including cylinder stainless steel tank body, the cylinder stainless steel tank body top is equipped with lid, air draft pipe is connected on lid, lid is connect by air draft pipe with exhaust fan, exhaust fan is connect by air draft pipe with tail gas absorber, blender is equipped in the cylinder stainless cylinder of steel body, blender connects motor, the tail gas absorber upper end is internally provided with three-level spray equipment, first water outlet of the three-level spray equipment and water circulating pump connects, first water inlet of water circulating pump is connect with water tank, second water inlet of water circulating pump and the bottom of tail gas absorber connect, second water outlet of water circulating pump is connect with water tank.The present invention will purify the tail gas generated during cubic boron nitride by the retracting device and rationally handle and utilize, and reduce explosion danger and the ammonia actual bodily harm caused by operating personnel caused by hydrogen.
Description
Technical field
The invention belongs to cubic boron nitrides to purify field, the ammonia more particularly to generated in cubic boron nitride purification process
With the device and technique of the recycling of hydrogen.
Background technology
Cubic boron nitride is that nature is not present, it be synthesized under superhigh-temperature and-pressure by hexagonal boron nitride and catalyst and
Come, be the novel new high-tech product of another occurred after the advent of diamond.It has very high hardness, thermostabilization
Property and chemical inertness and the excellent properties such as good infrared shape and wider energy gap, its hardness are only second to Buddha's warrior attendant
Stone, but thermal stability is known as Ferrious material member larger chemical stability far above diamond.The mill of Cubic Boron Nitride Abrasives
It cuts that performance is very excellent, the processing of difficult grind material can not only be competent at, improve productivity, moreover it is possible to effectively improve the grinding matter of workpiece
Amount.The use of cubic boron nitride is contributed greatly the one of intermetallic composite coating, is caused grinding that revolutionary variation occurs, is grinding technique
Second leap.
But in synthesizing cubic boron nitride, there is the hexagonal boron nitride close to half and be not converted into cubic boron nitride, because
This, needs to purify it after synthesizing cubic boron nitride, and cubic boron nitride from the material of mixing is purified and is come out.Traditional purification
Technique is to be separated hexagonal boron nitride and cubic boron nitride using S type shaking tables.Due to being nitrogenized in high temperature and pressure synthesis of cubic
The presence for having part metals lithium and hexagonal boron nitride as catalyst, and in Synthetic block using lithium metal and nitride is needed in boron,
Following react can occur when impregnating in water：
2Li+2H2O=2LiOH+H2↑
3LiOH+HBN=LiBO2+Li2O+NH3↑
The traditional handicraft of most enterprises is to let alone both gases to be discharged into air at present, and hydrogen is insufficient in cross-ventilation
In the case of burning can be caused even to explode, and ammonia directly contributes air pollution and body can be caused to endanger on-site personnel
Evil.
Invention content
The above problem caused by the tail gas generated during to solve purification cubic boron nitride, the present invention provide a kind of return
Receive device and technique that recycling purifies tail gas during cubic boron nitride.The present invention will purify cube nitrogen by the retracting device
Change the tail gas generated during boron rationally handle and utilize, explosion danger and ammonia are to operating personnel caused by reducing hydrogen
Caused by actual bodily harm.
To achieve the above object, the technical solution adopted by the present invention is：
The device of tail gas during a kind of recycling purification cubic boron nitride, including cylinder stainless steel tank body, the circle
Cylinder stainless steel tank body top is equipped with lid, and air draft pipe is connected on lid, and lid is connect by air draft pipe with exhaust fan, takes out
Wind turbine is connect by air draft pipe with tail gas absorber, and blender, blender connection are equipped in the cylinder stainless cylinder of steel body
Motor, the tail gas absorber upper end are internally provided with three-level spray equipment, and the first of the three-level spray equipment and water circulating pump
Water outlet connects, and the first water inlet of water circulating pump connect with water tank, the second water inlet of water circulating pump and tail gas absorber
Bottom connects, and the second water outlet of water circulating pump is connect with water tank.
Preferably, the cylinder stainless steel tank body bottom is arc-shaped, and bottom center is equipped with baiting valve.
Preferably, the tail gas absorber includes tower body, the top connection discharge duct of tower body.
Preferably, the air draft pipe between the stainless steel tank body and exhaust fan is equipped with valve.
Preferably, the air draft pipe between the stainless steel tank body and exhaust fan is equipped with and boils sour process tail gas entrance, with
The outlet for boiling sour process tail gas discharge line is connected by valve.
The technique of tail gas, is carried using recycling described above during a kind of recycling purification cubic boron nitride
The device of tail gas, includes the following steps during pure cubic boron nitride：
1）Bar containing cubic boron nitride is poured into stainless cylinder of steel body, water is added in, bar is submerged；
2）Start blender, open simultaneously the valve and exhaust fan on air draft pipe；
3）Open the switch of water circulating pump and three-level spray equipment.
Compared with prior art, beneficial effects of the present invention are：
The present invention handles generated in cubic boron nitride purification process originally two kinds of tail gas well, and wherein hydrogen passes through pipe
Road enters in absorption tower, and concentration reduces and contains certain steam, is discharged into air with making hydric safe, wherein ammonia passes through
Pipeline enters in absorption tower all to be absorbed by water, and the water in absorption tower is become alkalinity, can be used for absorbing in subsequent handling
Acid mist in this way turns waste into wealth ammonia, reduces the use of raw material while also protects environment.
Description of the drawings
Fig. 1 is recycling tail gas unit structure diagram of the present invention；
In figure：1- stainless steel tank bodies, 2- baiting valves, 3- blenders, 4- motors, 5- lids, 6- air draft pipes, 7- exhaust fans, 8-
Tail gas absorber, 9- three-level spray equipments, 10- water circulating pumps, 11- valves, 12- water tanks, 13- boil sour process tail gas discharge pipe
Road.
Specific embodiment
Fig. 1 is shown during a kind of a kind of recycling purification cubic boron nitride of embodiment according to the present invention
The device of tail gas, the specifically recycling of hydrogen and ammonia to being generated during purification cubic boron nitride, the device packet
It includes：Cylinder stainless steel tank body 1, for giving the bar containing cubic boron nitride and the space of water offer hybrid reaction, its underpart
The spherical baiting valve 2 of a diameter of 60mm is installed to be arc-shaped, and at bottom center of circle position, is pacified on the top of stainless steel tank body 1
Equipped with the blender 3 with double-deck paddle, blender 3 is connect by shaft coupling with motor 4, and motor 4 is driven by shaft coupling and stirred
Device 3 rotates, and the top of stainless steel tank body 1 is equipped with lid 5, and the material of lid 5 is polypropylene, can on stainless steel tank body 1
Portion seals very well, and air draft pipe 6 is connected on the lid 5, and air draft pipe 6 connects exhaust fan 7, and air draft pipe 6 is preferably resistance to
The expoxy glass steel material of soda acid, air draft pipe 6 are connect with tail gas absorber 8, specifically, air draft pipe 6 passes through exhaust fan 7
Air outlet is connect with the bottom of tail gas absorber 8, and tail gas absorber 8 is fiber glass epoxy, and tail gas absorber 8 is internally provided with three-level
Spray equipment 9, three-level spray equipment 9 are connect with outer loop water pump 10, and water circulating pump 10 connects water tank 12, water tank 12 and tail gas
The bottom connection on absorption tower, particularly, the three-level spray equipment 9 is connect with the first water outlet of water circulating pump 10, cycle
First water inlet of water pump 10 is connect with water tank 12, and the second water inlet of water circulating pump 10 is connect with the bottom of tail gas absorber 8,
Second water outlet of water circulating pump 10 is connect with water tank 12.
In the present embodiment, a diameter of 700mm of stainless steel tank body 1, wall thickness 8mm.
In the present embodiment, the air draft pipe 6 between the stainless steel tank body 1 and exhaust fan 7 is equipped with valve 11.
In the present embodiment, tail gas absorber 8 include tower body, tower body top connection discharge duct, tower body it is a diameter of
1500mm is highly 6000mm, discharge duct 10000mm, a diameter of 300mm.
In the present embodiment, the air draft pipe 6 between the stainless steel tank body 1 and exhaust fan 7, which is equipped with, boils sour process tail gas
Entrance is connect with the outlet for boiling sour process tail gas discharge line 13 by valve 11, is produced in the process using cubic boron nitride is purified
Raw ammonia neutralisation treatment boils the acid mist generated in sour technical process, and two kinds of gases are effectively treated, solve asking for exhaust emissions
Topic.
According to above device, during recycling of the present invention purification cubic boron nitride the technique of tail gas specifically include with
Lower step：
1）Bar containing cubic boron nitride is poured into stainless cylinder of steel body, water is added in, bar is submerged；
2）Start blender, open simultaneously the valve and exhaust fan on air draft pipe；
3）Open the switch of water circulating pump and three-level spray equipment.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. the device of tail gas during a kind of recycling purification cubic boron nitride, which is characterized in that stainless including cylinder
Cylinder of steel body, the cylinder stainless steel tank body top are equipped with lid, connect air draft pipe on lid, lid by air draft pipe with
Exhaust fan connects, and exhaust fan is connect by air draft pipe with tail gas absorber, and stirring is equipped in the cylinder stainless cylinder of steel body
Device, blender connection motor, the tail gas absorber upper end are internally provided with three-level spray equipment, and the three-level spray equipment is with following
The first water outlet connection of ring water pump, the first water inlet of water circulating pump connect with water tank, the second water inlet of water circulating pump and
The bottom connection of tail gas absorber, the second water outlet of water circulating pump are connect with water tank.
2. the device of tail gas, feature during a kind of recycling purification cubic boron nitride according to claim 1
It is, the cylinder stainless steel tank body bottom is arc-shaped, and bottom center is equipped with baiting valve.
3. the device of tail gas, feature during a kind of recycling purification cubic boron nitride according to claim 1
It is, the tail gas absorber includes tower body, the top connection discharge duct of tower body.
4. the device of tail gas, feature during a kind of recycling purification cubic boron nitride according to claim 1
It is, the air draft pipe between the stainless steel tank body and exhaust fan is equipped with valve.
5. the device of tail gas, feature during a kind of recycling purification cubic boron nitride according to claim 1
It is, the air draft pipe between the stainless steel tank body and exhaust fan is equipped with and boils sour process tail gas entrance, with boiling sour technique tail
The outlet of gas discharge line is connected by valve.
6. the technique of tail gas during a kind of recycling purification cubic boron nitride, which is characterized in that utilize claim 1 ~ 5
The device of tail gas, includes the following steps during any one of them recycling purification cubic boron nitride：
1）Bar containing cubic boron nitride is poured into stainless cylinder of steel body, water is added in, bar is submerged；
2）Start blender, open simultaneously the valve and exhaust fan on air draft pipe；
3）Open the switch of water circulating pump and three-level spray equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711403220.9A CN108159845A (en) | 2017-12-22 | 2017-12-22 | The device and technique of tail gas during a kind of recycling purification cubic boron nitride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711403220.9A CN108159845A (en) | 2017-12-22 | 2017-12-22 | The device and technique of tail gas during a kind of recycling purification cubic boron nitride |
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| Publication Number | Publication Date |
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| CN108159845A true CN108159845A (en) | 2018-06-15 |
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| CN201711403220.9A Pending CN108159845A (en) | 2017-12-22 | 2017-12-22 | The device and technique of tail gas during a kind of recycling purification cubic boron nitride |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203890087U (en) * | 2014-06-03 | 2014-10-22 | 俞经纹 | Gas stripping blow-off method ammonia nitrogen recycling treatment device |
| JP2015208721A (en) * | 2014-04-26 | 2015-11-24 | 喜弘 松村 | Rapid and continuous separation deodorizing device |
| CN205570074U (en) * | 2016-04-19 | 2016-09-14 | 方思傑 | Novel industry tail -gas clean -up tower |
| CN206621963U (en) * | 2017-02-10 | 2017-11-10 | 惠州市鸿宇泰科技有限公司 | A kind of three-level ammonia-containing exhaust recycling system |
| CN107488767A (en) * | 2016-06-13 | 2017-12-19 | 张家港市丰乐汽车设备有限公司 | A kind of slag steam treatment spray column |
-
2017
- 2017-12-22 CN CN201711403220.9A patent/CN108159845A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015208721A (en) * | 2014-04-26 | 2015-11-24 | 喜弘 松村 | Rapid and continuous separation deodorizing device |
| CN203890087U (en) * | 2014-06-03 | 2014-10-22 | 俞经纹 | Gas stripping blow-off method ammonia nitrogen recycling treatment device |
| CN205570074U (en) * | 2016-04-19 | 2016-09-14 | 方思傑 | Novel industry tail -gas clean -up tower |
| CN107488767A (en) * | 2016-06-13 | 2017-12-19 | 张家港市丰乐汽车设备有限公司 | A kind of slag steam treatment spray column |
| CN206621963U (en) * | 2017-02-10 | 2017-11-10 | 惠州市鸿宇泰科技有限公司 | A kind of three-level ammonia-containing exhaust recycling system |
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Application publication date: 20180615 |
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