CN201445909U - Recovery plant for tail gas produced by silver nitrate - Google Patents
Recovery plant for tail gas produced by silver nitrate Download PDFInfo
- Publication number
- CN201445909U CN201445909U CN2009200357013U CN200920035701U CN201445909U CN 201445909 U CN201445909 U CN 201445909U CN 2009200357013 U CN2009200357013 U CN 2009200357013U CN 200920035701 U CN200920035701 U CN 200920035701U CN 201445909 U CN201445909 U CN 201445909U
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- tail gas
- alkali lye
- silver nitrate
- absorption tower
- spray
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Abstract
The utility model discloses a recovery plant for tail gas produced by sliver nitrate, which comprises a first tail gas absorption tower and a second tail gas absorption tower which have cylindrical structure; the bottom of the first tail gas absorption tower is provided with an alkaline liquor pool which is communicated with the inner cavity of the first tail gas absorption tower and contains first alkaline liquor; the wall of the lower part of the first tail gas absorption tower is provided with a tail gas input port; a first spraying device is arranged in the cavity at the upper part of the first tail gas absorption tower; the wall of the top of the first tail gas absorption tower is provided with a first tail gas output port; the bottom of the second tail gas absorption tower is provided with the alkaline liquor pool which is communicated with the inner cavity of the second tail gas absorption tower and contains second alkaline liquor; the wall of the lower part of the second tail gas absorption tower is provided with a first tail gas input port; a second spraying device is arranged in the cavity at the upper part of the second tail gas absorption tower; the wall of the top of the second tail gas absorption tower is provided with a tail gas output port; the tail gas output port and a tail gas output pipe are connected; and the first tail gas output port is communicated with the first tail gas input port by the first tail gas output pipe. The recovery plant not only can eliminate the pollution of harmful tail gas to air, and protect environment, but also can change harmful tail gas to useful chemical raw material, and make waste profitable, thus being suitable for promotion and use in production of sliver nitrate.
Description
Technical field
The utility model relates to the retracting device of the pernicious gas that is produced in a kind of industrial production, particularly the retracting device of the harmful tail gas that is produced in silver nitrate production.
Background technology
Industrially produce silver nitrate by silver and nitric acid reaction, the Main Ingredients and Appearance of the tail gas of producing in the process to be produced at silver nitrate is nitrogen oxide NO
2And NO, and NO
2Reaching NO all is harmful gas, also is important atmosphere pollution; In addition, NO
2In atmospheric environment, be subjected to also can generate photochemical oxidant O after the solar ultraviolet irradiation with hydrocarbon
3Reach the compound of other multiple complexity, thereby caused the secondary pollution of photochemical pollution, harm humans survival environment; At present, because harmful tail gas that domestic silver nitrate manufacturer will be produced in often will producing directly enters in the atmosphere, therefore, caused the serious environmental pollution.
The utility model content
The technical problems to be solved in the utility model provides a kind of silver nitrate and produces device for recovering tail gas, and it not only can eliminate the pollution of harmful tail gas to air, the protection environment, and will be harmful to tail gas and become useful industrial chemicals, bring good to and remove all evil, turn waste into wealth.
For solving the problems of the technologies described above, a kind of silver nitrate that the utility model adopted is produced device for recovering tail gas, and it comprises first tail gas absorber and second tail gas absorber that is tubular construction respectively; The bottom of described first tail gas absorber is provided with and its intracavity inter-connection and the alkali lye pond that holds first alkali lye, and bottom tower wall is provided with the tail gas input port, is provided with first spray equipment in the upper column chamber, and the top drum wall is provided with the first tail gas delivery outlet; The bottom of described second tail gas absorber is provided with and its intracavity inter-connection and the alkali lye pond that holds second alkali lye, bottom tower wall is provided with the first tail gas input port, be provided with second spray equipment in the upper column chamber, the top drum wall is provided with the tail gas delivery outlet, and described tail gas delivery outlet links to each other with the tail gas efferent duct; The described first tail gas delivery outlet is connected with the described first tail gas input port by the first tail gas efferent duct.
Described first spray equipment can be made of at least one first spray head, first spray pump and alkali lye carrier pipe, one end of described first spray pump links to each other with first spray head by the alkali lye carrier pipe, and the other end links to each other with the alkali lye pond that holds first alkali lye by the alkali lye carrier pipe; Described second spray equipment can be made of at least one second spray head, second spray pump and alkali lye carrier pipe, one end of described second spray pump links to each other with second spray head by the alkali lye carrier pipe, and the other end links to each other with the alkali lye pond that holds second alkali lye by the alkali lye carrier pipe.
Described first alkali lye is preferably ammoniacal liquor or NaOH, and described second alkali lye is preferably NaOH or ammoniacal liquor.
After adopting such structure, because harmful tail gas NO
2And NO enter behind first tail gas absorber with spray through first spray equipment or atomizing after first alkali lye, the utility model is preferably the ammoniacal liquor reaction, fall into the alkali lye pond behind most generation ammonium nitrate and the ammonium nilrite, the tail gas of another little part and reaction, after the first tail gas efferent duct flows into second tail gas absorber with spray through second spray equipment or atomizing after second alkali lye, the utility model is preferably the NaOH reaction, all generate sodium nitrate, natrium nitrosum and steam, sodium nitrate, natrium nitrosum falls into the alkali lye pond, and steam enters in the atmosphere through the tail gas efferent duct.This shows harmful tail gas NO
2And eliminate fully behind the alkaline reaction of NO in first, second tail gas absorber, the gas that enters in the atmosphere is harmless steam, thereby has protected environment, and will be harmful to tail gas and become useful industrial chemicals and recycled, and turns waste into wealth.
As a kind of improvement of the present utility model, in first tail gas absorber below described first spray head and second spray head and the tower chamber of second tail gas absorber, also be respectively equipped with the sieve plate that one deck at least has densely covered tail gas through hole.Sieve plate of the present utility model preferably is provided with three to five layers, and the space certain distance is fixedly installed on the tower cavity wall of first, second tail gas absorber.After adopting such structure, can make spray or atomizing after alkali lye and NO
2And the contact area of NO is bigger, reacts more abundant, thereby improves absorption efficiency.
As another kind of improvement the of the present utility model, also be connected with liquid cylinder and blower fan in turn on the described tail gas efferent duct, the upper end of this liquid cylinder links to each other with the tail gas efferent duct, and the lower end links to each other with the described alkali lye pond that holds second alkali lye by pipeline.After adopting such structure, can will enter the reacted material of tail gas efferent duct with steam on the one hand, the utility model is preferably sodium nitrate and natrium nitrosum, makes it fall into the alkali lye pond again, thereby can be recycled more fully; By the drainage of blower fan, steam is discharged quickly on the other hand, increase work efficiency.
As another improvement of the present utility model, also be respectively equipped with the alkali lye device for supplying on the described alkali lye pond that holds first, second alkali lye, this alkali lye device for supplying is made of liquid level sensor, electric control gear, infusion pump and the alkali lye that is connected with the alkali lye pond of described first, second alkali lye respectively.After adopting such structure, can in time replenish the alkali lye amount in the alkali lye pond, thereby guarantee normally carrying out of spray work.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Fig. 1 produces the structural representation of device for recovering tail gas for the utility model silver nitrate.
The specific embodiment
Produce device for recovering tail gas referring to a kind of silver nitrate shown in Figure 1, comprise first tail gas absorber 1 and second tail gas absorber 2 of cylindrical or cone barrel structure; The bottom of described first tail gas absorber 1 is provided with its intracavity inter-connection and holds the alkali lye pond 1-1 of first alkali lye, bottom tower wall is provided with tail gas input port 1-2, be provided with the first spray equipment 1-3 in the upper column chamber, the top drum wall is provided with the first tail gas delivery outlet 1-4; The bottom of described second tail gas absorber 2 is provided with its intracavity inter-connection and holds the alkali lye pond 2-1 of second alkali lye, bottom tower wall is provided with the first tail gas input port 2-2, be provided with the second spray equipment 2-3 in the upper column chamber, the top drum wall is provided with tail gas delivery outlet 2-4, and described tail gas delivery outlet 2-4 links to each other with tail gas efferent duct 3; The described first tail gas delivery outlet 1-4 is connected with the described first tail gas input port 2-2 by the first tail gas efferent duct 4.
It is 14 ammoniacal liquor or NaOH that first alkali lye of the present utility model is preferably pH value; When first alkali lye was ammoniacal liquor, described second alkali lye was the NaOH of pH value 14; When first alkali lye was NaOH, described second alkali lye was the ammoniacal liquor of pH value 14.
The described first spray equipment 1-3 is made of at least one first spray head 1-3-1, the first spray pump 1-3-2 and alkali lye carrier pipe 5, the end of the described first spray pump 1-3-2 links to each other with the first spray head 1-3-1 by alkali lye carrier pipe 5, and the other end links to each other with the alkali lye pond 1-1 that holds first alkali lye by alkali lye carrier pipe 5; The described second spray equipment 2-3 is made of at least one second spray head 2-3-1, the second spray pump 2-3-2 and alkali lye carrier pipe 5, the end of the described second spray pump 2-3-2 links to each other with the second spray head 2-3-1 by alkali lye carrier pipe 5, and the other end links to each other with the alkali lye pond 2-1 that holds second alkali lye by alkali lye carrier pipe 5.
For make spray or atomizing after the alkali lye and the contact area of tail gas bigger, react more abundant, can in the tower chamber of first, second tail gas absorber 1,2 below the first spray head 1-3-1 and the second spray head 2-3-1, be respectively provided to the sieve plate 6 that few one deck has densely covered tail gas through hole.Sieve plate 6 of the present utility model preferably is provided with three to five layers, and the space certain distance is fixedly connected on the tower cavity wall of first, second tail gas absorber 1,2, and the aperture of sieve aperture can be between 3～15 millimeters on the described sieve plate 6.
As shown in Figure 1, also be connected with liquid cylinder 7 and blower fan 8 in turn on tail gas efferent duct 3, the upper end of this liquid cylinder 7 links to each other with tail gas efferent duct 3, and the lower end links to each other with the described alkali lye pond 2-1 that holds second alkali lye by pipeline.After liquid cylinder 7 is installed, can make reacted material like this, for example sodium nitrate and natrium nitrosum fall into the alkali lye pond again, thereby can be recycled more fully, turn waste into wealth.
For in time replenishing the alkali lye amount in the alkali lye pond, guarantee normally carrying out of spray work, can be respectively equipped with the alkali lye device for supplying on described alkali lye pond 1-1, the 2-1 that holds first, second alkali lye, this alkali lye device for supplying is by liquid level sensor, electric control gear, infusion pump and constitute with the alkali lye pond 1-1 of described first, second alkali lye, the alkali lye that 2-1 is connected respectively.When the alkali lye in alkali lye pond 1-1, the 2-1 was lower than the predetermined value of setting, liquid level sensor was about to the signal of telecommunication and is sent to electric control gear like this, made the infusion pump of electric control gear control in time replenish alkali lye to the alkali lye pond, and is not shown in the figures.
The course of work of the utility model device for recovering tail gas is as follows: the harmful tail gas NO that produces in silver nitrate is produced
2And NO enters in first tail gas absorber 1 by pipeline and the tail gas input port 1-2 that is arranged on first tail gas absorber, the 1 bottom tower wall, with the first alkali lye ammoniacal liquor reaction after injection in the tower or the atomizing, fall into the alkali lye pond behind most generation ammonium nitrate and the ammonium nilrite, the tail gas of another little part and reaction, second alkali lye NaOH reaction after the first tail gas efferent duct 4 flows into second tail gas absorber 2 and after second spray equipment sprays or atomizes, all generate sodium nitrate, natrium nitrosum and steam, sodium nitrate, natrium nitrosum falls into the alkali lye pond, and steam enters in the atmosphere through tail gas efferent duct 3.
Claims (7)
1. a silver nitrate is produced device for recovering tail gas, and described tail gas is nitrogen oxide NO
2And NO, it is characterized in that: this device comprises first tail gas absorber (1) and second tail gas absorber (2) that is tubular construction respectively; The bottom of described first tail gas absorber (1) is provided with and its intracavity inter-connection and the alkali lye pond (1-1) that holds first alkali lye, bottom tower wall is provided with tail gas input port (1-2), be provided with first spray equipment (1-3) in the upper column chamber, the top drum wall is provided with the first tail gas delivery outlet (1-4); The bottom of described second tail gas absorber (2) is provided with and its intracavity inter-connection and the alkali lye pond (2-1) that holds second alkali lye, bottom tower wall is provided with the first tail gas input port (2-2), be provided with second spray equipment (2-3) in the upper column chamber, the top drum wall is provided with tail gas delivery outlet (2-4), and described tail gas delivery outlet (2-4) links to each other with tail gas efferent duct (3); The described first tail gas delivery outlet (1-4) is connected with the described first tail gas input port (2-2) by the first tail gas efferent duct (4).
2. silver nitrate according to claim 1 is produced device for recovering tail gas, it is characterized in that: described first spray equipment (1-3) is made of at least one first spray head (1-3-1), first spray pump (1-3-2) and alkali lye carrier pipe (5), one end of described first spray pump (1-3-2) links to each other with first spray head (1-3-1) by alkali lye carrier pipe (5), and the other end links to each other with the alkali lye pond (1-1) that holds first alkali lye by alkali lye carrier pipe (5); Described second spray equipment (2-3) is made of at least one second spray head (2-3-1), second spray pump (2-3-2) and alkali lye carrier pipe (5), one end of described second spray pump (2-3-2) links to each other with second spray head (2-3-1) by alkali lye carrier pipe (5), and the other end links to each other with the alkali lye pond (2-1) that holds second alkali lye by alkali lye carrier pipe (5).
3. silver nitrate according to claim 1 is produced device for recovering tail gas, it is characterized in that: in the tower chamber of first tail gas absorber (1) of described first spray head (1-3-1) and second spray head (2-3-1) below and second tail gas absorber (2), also be respectively equipped with the sieve plate (6) that one deck at least has densely covered tail gas through hole.
4. silver nitrate according to claim 3 is produced device for recovering tail gas, and it is characterized in that: described sieve plate (6) is provided with three to five layers, and the space certain distance is fixedly installed on the tower cavity wall of first, second tail gas absorber (1,2).
5. silver nitrate according to claim 4 is produced device for recovering tail gas, it is characterized in that: the aperture that described sieve plate (6) is gone up sieve aperture is 3～15 millimeters.
6. silver nitrate according to claim 1 is produced device for recovering tail gas, it is characterized in that: also be connected with liquid cylinder (7) and blower fan (8) on the described tail gas efferent duct (3) in turn, the upper end of this liquid cylinder (7) links to each other with tail gas efferent duct (3), and the lower end links to each other with the described alkali lye pond (2-1) that holds second alkali lye by pipeline.
7. produce device for recovering tail gas according to each described silver nitrate in the claim 1 to 6, it is characterized in that: also be respectively equipped with the alkali lye device for supplying on the described alkali lye pond (1-1,2-1) that holds first, second alkali lye, this alkali lye device for supplying is made of liquid level sensor, electric control gear, infusion pump and the alkali lye that is connected with the alkali lye pond (1-1,2-1) of described first, second alkali lye respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200357013U CN201445909U (en) | 2009-03-17 | 2009-03-17 | Recovery plant for tail gas produced by silver nitrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200357013U CN201445909U (en) | 2009-03-17 | 2009-03-17 | Recovery plant for tail gas produced by silver nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201445909U true CN201445909U (en) | 2010-05-05 |
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ID=42550617
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200357013U Expired - Fee Related CN201445909U (en) | 2009-03-17 | 2009-03-17 | Recovery plant for tail gas produced by silver nitrate |
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| CN (1) | CN201445909U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810289A (en) * | 2016-05-20 | 2016-07-27 | 浙江光隆能源科技股份有限公司 | Aluminium paste used for back-polished polycrystalline solar cell and preparation method for aluminum paste |
| CN105869707A (en) * | 2016-05-20 | 2016-08-17 | 浙江光隆能源科技股份有限公司 | Aluminum paste for water boiling resistant solar cell and preparation method of solar cell |
| CN107731345A (en) * | 2016-07-05 | 2018-02-23 | 浙江光隆能源科技股份有限公司 | The high-tensile strength of improvement prevents the preparation method of the hidden back of solar cell silver paste split |
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2009
- 2009-03-17 CN CN2009200357013U patent/CN201445909U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810289A (en) * | 2016-05-20 | 2016-07-27 | 浙江光隆能源科技股份有限公司 | Aluminium paste used for back-polished polycrystalline solar cell and preparation method for aluminum paste |
| CN105869707A (en) * | 2016-05-20 | 2016-08-17 | 浙江光隆能源科技股份有限公司 | Aluminum paste for water boiling resistant solar cell and preparation method of solar cell |
| CN105869707B (en) * | 2016-05-20 | 2017-11-14 | 浙江光隆能源科技股份有限公司 | Aluminium paste for water boiling resistance solar cell and preparation method thereof |
| CN107689263A (en) * | 2016-05-20 | 2018-02-13 | 浙江光隆能源科技股份有限公司 | A kind of preparation method for carrying on the back the aluminium paste that polishing polycrystalline solar cell uses |
| CN107689263B (en) * | 2016-05-20 | 2019-02-15 | 浙江光隆能源科技股份有限公司 | A kind of preparation method for the aluminium paste that back polishing polycrystalline solar cell uses |
| CN107731345A (en) * | 2016-07-05 | 2018-02-23 | 浙江光隆能源科技股份有限公司 | The high-tensile strength of improvement prevents the preparation method of the hidden back of solar cell silver paste split |
| CN107731345B (en) * | 2016-07-05 | 2019-02-15 | 浙江光隆能源科技股份有限公司 | The preparation method of the back of solar cell silver paste of the anti-crack of the high-tensile strength of improvement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100505 Termination date: 20140317 |