CN105883793B - Method and device for recovering diamond by adding water into chlorine and under negative pressure - Google Patents
Method and device for recovering diamond by adding water into chlorine and under negative pressure Download PDFInfo
- Publication number
- CN105883793B CN105883793B CN201410795322.XA CN201410795322A CN105883793B CN 105883793 B CN105883793 B CN 105883793B CN 201410795322 A CN201410795322 A CN 201410795322A CN 105883793 B CN105883793 B CN 105883793B
- Authority
- CN
- China
- Prior art keywords
- chlorine
- diamond
- liquid seal
- liquid
- negative pressure
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a method and a device for recovering diamond by adding water into chlorine and negative pressure, which solves the problems of leakage of harmful gases such as chlorine, acid mist and the like and environmental pollution in the prior art, and is characterized in that: the chlorine absorption and acid liquor corrosion processes are carried out under negative pressure, and the process operation can be divided into three steps: charging, discharging inert gas and absorbing chlorine. Because the production process is carried out under negative pressure, and the inert gas is completely absorbed by the residual chlorine and is discharged after being washed by ammonia water, the influence of harmful gases such as chlorine, acid mist and the like on the environment is greatly reduced.
Description
One, the technical field
The invention belongs to the field of resource recovery and environmental protection, and particularly relates to a method and a device for recovering diamonds at negative pressure by a chlorine method.
Second, background Art
Synthetic diamonds are artificially synthesized under high temperature and high pressure conditions. It has the same chemical composition, crystal structure and physicochemical properties as natural diamond. It has maximum hardness, extremely strong wear resistance and stability. With the rapid development of building and real estate industries in decorative stone, oil drilling and the like, the demand for artificial diamond and products thereof is increasing dramatically. China is a large country for producing and using diamonds and diamond tools, consumes a large amount of diamonds every year and also generates a large amount of diamond waste products. The diamond waste contains not only expensive diamond particles but also substances with high recycling value (such as tungsten carbide, copper, cobalt, nickel and the like). The recovery and reuse of the diamond is a good project which saves resources and is beneficial to the nation and the people.
The diamond tool is formed by firmly bonding diamond particles into a whole body with different shapes by using bonding metal such as copper, iron and the like. The recovery of diamond waste products is to corrode and dissolve bonding metals such as copper, iron and the like, and then to filter the bonding metals to obtain diamond particles. In the existing method for recovering diamond by adding water to chlorine, the gas pressure in a container for chlorine absorption and acid liquor corrosion is greater than the environmental pressure in the recovery production process, and the problems of leakage of harmful gases such as chlorine, acid mist and the like and environmental pollution exist.
Third, the invention
The invention aims to provide a method and a device for recovering diamonds by adding water into chlorine and under negative pressure aiming at the defects in the existing method for recovering diamonds.
The technical scheme of the invention is as follows: the method for recovering the diamond by adding water into chlorine and under negative pressure comprises the following process flows:
(1) filling the absorption corrosion columns with the waste diamond products as fillers through the feed inlet;
(2) filling the liquid seal tank at the feed inlet with water, adding a certain amount of ammonia water into the tail gas liquid seal tank, adding a certain amount of water into the liquid storage tank, and continuously spraying the water in the liquid storage tank through the spray head;
(3) firstly, covering a diamond outlet liquid seal tank cover and a feed inlet liquid seal tank cover, and then closing the communicating valve;
(5) when water flows out of the tail gas pipe, the communicating valve is opened;
(6) allowing chlorine to rise from the bottom of the absorption corrosion column and pass through the wetted diamond waste packing layer to be continuously absorbed by water under negative pressure;
(7) when the negative pressure in the absorption corrosion column is reduced to the liquid seal height that the liquid seal tank left and right side liquid level difference is less than the feed inlet liquid seal tank and the diamond outlet liquid seal tank, the chlorine gas introduction amount is reduced, the tank covers of the two tanks are opened, diamond waste fillers are supplemented to the absorption corrosion column through the feed inlet, and diamond particles are fished from the diamond outlet liquid seal tank;
(8) when the liquid levels of the left side and the right side of the liquid seal tank are quickly equal, stopping introducing chlorine;
(9) and (5) repeating the operations from (3) to (8) when the liquid level of the liquid seal tank is unchanged until the diamond waste product is corroded.
A device for recovering diamonds by adding water into chlorine and negative pressure comprises an absorption corrosion column, a liquid storage tank, a pump, a spiral body and the like, wherein a diamond outlet liquid seal tank is arranged at the bottom of the absorption corrosion column and is connected with the liquid storage tank through a communicating pipe with a communicating valve and a chlorine gas bottle through a pipeline with a chlorine gas valve; the top is provided with a spiral feed inlet, a tail gas pipe connected with the liquid seal tank, and a liquid inlet pipe connected with a pump outlet pipe and provided with a spray nozzle, wherein the pump inlet pipe is inserted into the bottom of the liquid storage tank.
The invention has the beneficial effects that: the process of chlorine absorption and acid liquor corrosion reaction is carried out under negative pressure, and the inert gas is completely absorbed by the residual chlorine and is discharged after being washed by ammonia water, so that the influence of harmful gases such as chlorine and acid mist on the environment is greatly reduced.
The invention will be further explained with reference to the drawings.
Fourthly, explanation of the attached drawings:
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a spray head, 2 is a pump, 3 is a tail gas pipe, 4 is a liquid seal groove, 5 is a liquid storage tank, 6 is a communicating valve, 7 is a diamond outlet liquid seal tank, 8 is a metering scale, 9 is a chlorine bottle, 10 is a chlorine valve, 11 is diamond waste packing, 12 is an absorption corrosion column, 13 is a crankshaft, 14 is a feed inlet, and 15 is a spiral body.
Fifth, detailed description of the invention
As shown in figure 1, a device for adding water into chlorine and recovering diamond under negative pressure comprises an absorption corrosion column 12, a liquid storage tank 5, a pump 2, a spiral body 15 and the like, wherein the bottom of the absorption corrosion column 12 is provided with a diamond outlet liquid seal tank 7 which is connected with the liquid storage tank 5 through a communicating pipe with a communicating valve 6 and is connected with a chlorine bottle 9 through a pipeline with a chlorine valve 10; the top is provided with a spiral body 15 feeding hole 14, a tail gas pipe 3 connected with the liquid seal tank 4, and a liquid inlet pipe with a spray head 1 connected with an outlet pipe of the pump 2, wherein the inlet pipe of the pump 2 is inserted into the bottom of the liquid storage tank 5.
When the method is implemented, the material is fed in the first step, the crankshaft 13 is shaken, and the diamond waste is conveyed into the absorption corrosion column 12 as a filler through the spiral body 15 at the feeding hole 14; the liquid seal tank of the feed inlet 14 is filled with water, a certain amount of ammonia water is added into the tail gas liquid seal tank 4, a certain amount of water is added into the liquid storage tank 5, and the pump 2 is started to continuously spray the water in the liquid storage tank 5 through the spray head 1. Secondly, discharging inert gas, covering a diamond outlet liquid seal tank 7 cover and a feeding port 14 liquid seal tank cover, and closing a communicating valve; when water flows out of the tail gas pipe 3, the communicating valve 6 is opened, so that the liquid level of the absorption corrosion column 12 is lowered, the liquid level on the right side of the liquid seal groove 4 is raised, and the interior of the absorption corrosion column 12 is in negative pressure. Thirdly, chlorine gas is absorbed, a chlorine gas valve 10 is opened, the chlorine gas rises from the bottom of an absorption corrosion column 12, the chlorine gas is continuously absorbed by water under negative pressure through a wetted diamond waste packing 11 layer, the negative pressure in the absorption corrosion column 12 is gradually reduced due to the accumulation of inert gas, and the liquid level at the left side of the liquid seal tank 4 slowly rises; when the negative pressure in the absorption corrosion column 12 is reduced to the level difference between the left side and the right side of the liquid seal tank 4 which is smaller than the liquid seal height of the liquid seal tank of the feed port 14 and the liquid seal tank of the diamond outlet 7, the introduction amount of chlorine is reduced, the tank covers of the two tanks are opened, diamond waste fillers are supplemented to the absorption corrosion column 12 through the feed port 14, and diamond particles are fished from the liquid seal tank of the diamond outlet 7; when the negative pressure in the absorption corrosion column 12 is close to zero and the liquid levels on the left side and the right side of the liquid seal tank 4 are quickly equal, the introduction of chlorine is stopped, the remained chlorine is continuously absorbed, so that the negative pressure in the absorption corrosion column 12 is increased, and the liquid level on the left side of the liquid seal tank 4 is increased and the liquid level on the right side is decreased. And when the residual chlorine is absorbed and the liquid level of the liquid seal tank is unchanged, repeating the second step and the third step until the diamond waste products are corroded.
Claims (2)
1. A method for recovering diamond by adding water into chlorine and under negative pressure is characterized in that: the process flow is as follows:
(1) filling the absorption corrosion columns with the waste diamond products as fillers through the feed inlet;
(2) filling the liquid seal tank at the feed inlet with water, adding a certain amount of ammonia water into the tail gas liquid seal tank, adding a certain amount of water into the liquid storage tank, and continuously spraying the water in the liquid storage tank through the spray head;
(3) firstly, covering a diamond outlet liquid seal tank cover and a feed inlet liquid seal tank cover, and then closing the communicating valve;
(5) when water flows out of the tail gas pipe, the communicating valve is opened;
(6) allowing chlorine to rise from the bottom of the absorption corrosion column and pass through the wetted diamond waste packing layer to be continuously absorbed by water under negative pressure;
(7) when the negative pressure in the absorption corrosion column is reduced to the liquid seal height that the liquid seal tank left and right side liquid level difference is less than the feed inlet liquid seal tank and the diamond outlet liquid seal tank, the chlorine gas introduction amount is reduced, the tank covers of the two tanks are opened, diamond waste fillers are supplemented to the absorption corrosion column through the feed inlet, and diamond particles are fished from the diamond outlet liquid seal tank;
(8) when the liquid levels of the left side and the right side of the liquid seal tank are quickly equal, stopping introducing chlorine;
(9) and (5) repeating the operations from (3) to (8) when the liquid level of the liquid seal tank is unchanged until the diamond waste product is corroded.
2. A device for recovering diamonds by adding water into chlorine and under negative pressure consists of an absorption corrosion column (12), a liquid storage tank (5), a pump (2) and a spiral body (15), wherein the bottom of the absorption corrosion column (12) is provided with a diamond outlet liquid seal tank (7) which is connected with the liquid storage tank (5) through a communicating pipe with a communicating valve (6) and is connected with a chlorine bottle (9) through a pipeline with a chlorine valve (10); the top is provided with a spiral body (15) feeding hole (14), a tail gas pipe (3) connected with the liquid seal groove (4), a liquid inlet pipe connected with an outlet pipe of the pump (2) and provided with a spray head (1), and the inlet pipe of the pump (2) is inserted into the bottom of the liquid storage tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795322.XA CN105883793B (en) | 2014-12-11 | 2014-12-11 | Method and device for recovering diamond by adding water into chlorine and under negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795322.XA CN105883793B (en) | 2014-12-11 | 2014-12-11 | Method and device for recovering diamond by adding water into chlorine and under negative pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105883793A CN105883793A (en) | 2016-08-24 |
| CN105883793B true CN105883793B (en) | 2020-02-11 |
Family
ID=56700103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410795322.XA Active CN105883793B (en) | 2014-12-11 | 2014-12-11 | Method and device for recovering diamond by adding water into chlorine and under negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105883793B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745514A (en) * | 2008-12-02 | 2010-06-23 | 北京有色金属研究总院 | Comprehensive resource recycling method for waste diamond tool |
| EP2269952A2 (en) * | 2001-08-30 | 2011-01-05 | Tadamasa Fujimura | Stable aqueous suspension liquid of finely divided particles metallic film containing diamond particles and method of producing the same |
| CN102660685A (en) * | 2012-05-07 | 2012-09-12 | 南昌大学 | Method for recycling waste diamond tool |
| CN103254571A (en) * | 2013-05-10 | 2013-08-21 | 河北工业大学 | Preparation method of nano diamond/epoxy resin composite material |
-
2014
- 2014-12-11 CN CN201410795322.XA patent/CN105883793B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2269952A2 (en) * | 2001-08-30 | 2011-01-05 | Tadamasa Fujimura | Stable aqueous suspension liquid of finely divided particles metallic film containing diamond particles and method of producing the same |
| CN101745514A (en) * | 2008-12-02 | 2010-06-23 | 北京有色金属研究总院 | Comprehensive resource recycling method for waste diamond tool |
| CN102660685A (en) * | 2012-05-07 | 2012-09-12 | 南昌大学 | Method for recycling waste diamond tool |
| CN103254571A (en) * | 2013-05-10 | 2013-08-21 | 河北工业大学 | Preparation method of nano diamond/epoxy resin composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105883793A (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205634901U (en) | Retrieve device of diamond | |
| CN105645406A (en) | Recovery method of diamond | |
| CN105883793B (en) | Method and device for recovering diamond by adding water into chlorine and under negative pressure | |
| CN205773379U (en) | A kind of large-scale quartz sand acid eccysis ferrum knot screen | |
| CN204752215U (en) | Continuous recovery unit of diamond who packs is made to reactant | |
| CN105883791B (en) | Reactant makees the diamond continuous recovery method and device of filler | |
| CN204412020U (en) | A kind of waste gas minute-pressure storage absorption plant | |
| CN201329242Y (en) | Acrylonitrile tail gas recovery device | |
| CN103521059A (en) | Recovery method for hydrogen chloride gas produced in production process for 3,5-dichloro-4-aminobenzotrifluoride | |
| CN105709568A (en) | Waste gas micro-pressure storage and absorption device and method for manufacturing same | |
| CN112610275B (en) | Comprehensive evaluation index system and design method for gas production rate of salt cavern gas storage | |
| CN204784671U (en) | Atmospheric pressure jar | |
| CN203145914U (en) | Automatic high-pressure sand discharging device | |
| CN204677754U (en) | A kind of pressure storage tank | |
| CN205576008U (en) | Fracturing fluid is retrieved scour protection and is lost sand removal system | |
| CN204737729U (en) | Device of diamond is retrieved to chlorine | |
| CN204338138U (en) | Chlorine method reclaims adamantine pressure control absorption plant | |
| CN211755953U (en) | Device for separating HW11 dangerous waste iron filings impurities | |
| CN210683194U (en) | Volatile liquid filling system | |
| CN204918075U (en) | Type of nai pollution of loading softens ion exchange reaction tower of resin | |
| CN207981404U (en) | A kind of silicon carbide overflow tank | |
| CN107684770A (en) | One kind backwash poor liquid filter of desulfurization | |
| CN103463900A (en) | Reaction gas deduster | |
| CN102537652A (en) | Method for displacing impurities at bottom of water sealed tank of gas holder without shutdown as well as gas holder | |
| CN205701766U (en) | Underground work devil liquor recovery tank truck inner wall automatic clearing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200117 Address after: 438000 Zhangyang Road, Huangzhou Railway Station Economic Development Zone, Huanggang City, Hubei Province Applicant after: Hubei rongmeng Environmental Protection Technology Co., Ltd Address before: 3 unit 2, Huanggang experimental primary school, 61 Shengli Street, Huangzhou District, Hubei, Huanggang 438000, China 302 Applicant before: Zeng Zhouhua |