CN104498720A - Pyrolyzing and resource recovery system for noble metals - Google Patents
Pyrolyzing and resource recovery system for noble metals Download PDFInfo
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- CN104498720A CN104498720A CN201410783082.1A CN201410783082A CN104498720A CN 104498720 A CN104498720 A CN 104498720A CN 201410783082 A CN201410783082 A CN 201410783082A CN 104498720 A CN104498720 A CN 104498720A
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- air outlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention relates to a pyrolyzing and resource recovery system for noble metals. The pyrolyzing and resource recovery system comprises an electric incineration furnace, a secondary combustion chamber, a quenching tower, a cloth-bag dust remover, a spraying tower and an induced draft fan, wherein an air outlet of the electric incineration furnace is connected with a gas inlet of the secondary combustion chamber; the secondary combustion chamber is internally provided with a diesel combustion engine and an oxygen-supplying gas inlet; a gas outlet of the secondary combustion chamber is communicated with a dust falling chamber by a pipeline to carry out dust falling; and a gas outlet of the dust falling chamber is connected with a gas inlet of a heat exchanger. The pyrolyzing and resource recovery system has the advantages that solid waste is incinerated and gasified under the poor-oxygen condition, and the dust generation amount is small, so that the recovery of noble metals is guaranteed; and the pyrolyzing and resource recovery system can be used for metal-resource recovery and processing enterprises, and has the beneficial effects that the materials can be circularly utilized and the cost can be saved.
Description
Technical field
The present invention relates to a kind of incineration disposal device, a kind of precious metal pyrolysis and resource recovering system, belong to environmental protection equipment technical field specifically.
Background technology
Rare metal is rare and gain the name with it, now once after being familiar with by people, separate from beneath exploitation continuously, enter industrial production, become industry, modern science and technology, modern national defense to lack can not key player, the foundation stone that constitute modern civilization the same as ferrous metal and non-ferrous metal.
All getting from materials recycling with the gold of new scale production, platinum, palladium major part now, is the main body of Footwall drift for the waste material ornament high containing noble metal amount.Reclaiming the every profession and trade of profit minimizing headed by electronic industry of industry, saving when using precious metal as far as possible, thus cause bullion content in waste material to decline, unit take-back cost rising; Metal market value is long-term lower, as precious metal valency gos up again, saves and will rise once again with the wind replacing precious metal.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, a kind of precious metal pyrolysis and resource recovering system are provided, effectively can collect out precious metal from metal garbage and carry out second stage employ, the waste gas produced in whole burning process is through the absorption of device, directly do not discharge to external world, pollution is reduced to minimum.
In order to solve above technical problem, the invention provides a kind of precious metal pyrolysis and resource recovering system, comprise burning electric furnace, secondary combustion chamber, quench tower, sack cleaner, spray column and induced draft fan, the described air outlet of burning electric furnace is connected with the inlet mouth of secondary combustion chamber, diesel combustion machine and oxygenating inlet mouth is provided with in described secondary combustion indoor, the air outlet of described secondary combustion chamber is delivered to dust-settling compartment through pipeline and is carried out depositing dust, the air outlet of described dust-settling compartment is connected with the inlet mouth of interchanger, the inlet mouth of quench tower is delivered in the air outlet of described interchanger through pipeline, chilling shower nozzle is provided with in described quench tower, described chilling shower nozzle is connected with lye vat by lye pump, the gas cooled by described quench tower is connected with described spray column by two branch roads through the air outlet of quench tower, first branch road is connected with the inlet mouth of sack cleaner with described spray column by the first stopping valve, Dry absorption device successively, second branch road is then directly connected with the inlet mouth of described spray column by the pipeline of installation second stopping valve, shower nozzle in described spray column is connected with circulation alkali pond by alkali liquor absorption pump, and the absorption liquid bottom described spray column delivers to described circulation alkali pond by pipeline, the air outlet of described spray column is connected through the blast inlet of pipeline with described induced draft fan, and the air outlet of described induced draft fan directly delivers to smoke stack emission through pipeline.
The technical scheme that the present invention limits further is: aforesaid precious metal pyrolysis and resource recovering system, also air compressor is comprised in described incineration system, described air compressor air outlet is connected with described quench tower, Dry absorption device and sack cleaner through pipeline, blowback is carried out by the pressurized air of compressor, effectively can improve the property passed through of gas, in the work-ing life of raising equipment, reduce the failure rate of equipment.
Aforesaid precious metal pyrolysis and resource recovering system, the oxygenating of described secondary combustion chamber is provided by oxygenating blower fan, the air outlet of described oxygenating blower fan is after the shell side preheating of described interchanger, be connected with the oxygenating inlet mouth of described secondary combustion chamber through pipeline, ensure that in-furnace temperature constant temperature is in more than 1100 DEG C, fail in a room perfect combustion produce organic exhaust gas, again through high-temp combustion destroy, reach discharging standards.
Further, aforesaid precious metal pyrolysis and resource recovering system, described chimney jambs arranges permanent thieff hatch, is convenient to carry out environmental protection tests at any time; Described induced draft fan is by Frequency Converter Control, and described inverter control signal is provided by the temperature sensor collection be arranged on described burning electric furnace.
The invention has the beneficial effects as follows:
The furnace body combustion chamber of incinerator of the present invention adopts vertical refractory materials type, heat anoxycausis with electrically heated, temperature of combustion maintains 600 ~ 800 DEG C, oxidation operation in waste can be become CO (carbon monoxide converter) gas, furnace volume is large, and stove load is greater than 250,000 kilocalories/(M
3* H), enough deal with the multifuel combustion of various high molecular waste material, applied widely and stable.Solid waste sends into furnace body combustion chamber by artificial batch by movable tray, and movable tray adopts heat-resistance stainless steel material, is designed to concavity, prevents liquid waste from overflowing outside stove.Secondary combustion chamber fire resisting material of furnace body selects amphoteric refractory, high temperature resistant, simultaneously can anti-highly basic and mixing acid, and corrosion-resistant, furnace body is cast by refractory materials and formed.In-furnace temperature constant temperature in more than 1100 DEG C, fail in a room perfect combustion produce organic exhaust gas, again through high-temp combustion destroy, reach discharging standards.Induced draft fan adopts variable frequency adjustment, can guarantee in stove to be negative-pressure firing, not have back-fire combustion phenomena, improve processing safety.Free-standing chimney arranges permanent thieff hatch, is convenient to carry out environmental protection tests at any time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
embodiment 1
A kind of precious metal pyrolysis that the present embodiment provides and resource recovering system, structure as shown in Figure 1, comprise and burn electric furnace 1, secondary combustion chamber 2, quench tower 5, sack cleaner 6, air compressor 11, spray column 7 and induced draft fan 8, solid waste sends into burning electric furnace combustion chamber by artificial batch by movable tray 16, the air outlet burning electric 1 stove is connected with the inlet mouth of secondary combustion chamber 2, diesel combustion machine 13 and oxygenating inlet mouth is provided with in secondary combustion chamber 2, the diesel oil of diesel combustion machine directly comes from pipe network, the air outlet of secondary combustion chamber 2 is delivered to dust-settling compartment 3 through pipeline and is carried out depositing dust, the air outlet of dust-settling compartment 3 is connected with the inlet mouth of interchanger 4, the inlet mouth of quench tower 5 is delivered in the air outlet of interchanger 4 through pipeline, chilling shower nozzle is provided with in quench tower 5, chilling shower nozzle is connected with lye vat 15 ' by lye pump 14 ', be connected with spray column by two branch roads through the air outlet of quench tower by quench tower cold 5 gas but, first branch road is connected with the inlet mouth of sack cleaner 6 with spray column 7 by the first stopping valve, Dry absorption device 10 successively, and air compressor 11 air outlet is connected with quench tower 5, Dry absorption device 10 and sack cleaner 6 through pipeline, second branch road is then directly connected with the inlet mouth of spray column 7 by the pipeline of installation second stopping valve, and the shower nozzle in spray column 7 is connected with circulation alkali pond 15 by alkali liquor absorption pump 14, and the absorption liquid bottom spray column 7 delivers to circulation alkali pond 15 by pipeline, the air outlet of spray column 7 is connected through the blast inlet of pipeline with air inducing 8 machine, and the air outlet of induced draft fan 8 is directly delivered to chimney 9 through pipeline and discharged, and induced draft fan is by Frequency Converter Control, and inverter control signal provides by being arranged on the temperature sensor collection of burning on electric furnace, the oxygenating of secondary combustion chamber is provided by oxygenating blower fan 12, and the air outlet of oxygenating blower fan 12, after the shell side preheating of interchanger 4, is connected with the oxygenating inlet mouth of secondary combustion chamber 2 through pipeline.
The principle of work of the present embodiment: noble metal materials is sent into by operator's batch and burned electric furnace 1 combustion chamber, anoxycausis is heated with electrically heated, temperature of combustion maintains 600 ~ 800 DEG C, residual waste gas enters secondary combustion chamber 2, the diesel oil sprayed into by secondary burner is lighted, according to burning 3T(temperature, time, eddy current) principle is fully oxidized in secondary combustion indoor, pyrolysis, burning, more than the 1100 DEG C pyrolysis of secondary combustion chamber high temperature reach free from extraneous odour, ordorless, smokeless complete combustion effect, make its combustion efficacy and destroy clearance more than 99.99%, enter settling pocket 3 system removing dust and enter G-G interchanger 4 and be cooled to about 800 DEG C, flue gas enters quench tower 5 and utilizes industrial alkali liquid fast cooling to about 200 DEG C, avoid the resynthesis of dioxin in flue gas, flue gas after cooling enters Dry absorption device, utilize powder electroless plating dioxin, flue gas enters sack cleaner 6 and removes dust, flue gas enter spray absorber 7 utilize industrial alkali liquid absorb process after, the gas up to standard meeting emission standard enters air through exhaust blower 8 by chimney 9.The ashes containing precious metals such as gold, platinum, porpezites of the rear generation of burning are by artificial taking-up, screening, recycling.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (5)
1. a precious metal pyrolysis and resource recovering system, comprise burning electric furnace, secondary combustion chamber, quench tower, sack cleaner, spray column and induced draft fan, it is characterized in that: the described air outlet of burning electric furnace is connected with the inlet mouth of secondary combustion chamber, diesel combustion machine and oxygenating inlet mouth is provided with in described secondary combustion indoor, the air outlet of described secondary combustion chamber is delivered to dust-settling compartment through pipeline and is carried out depositing dust, the air outlet of described dust-settling compartment is connected with the inlet mouth of interchanger, the inlet mouth of quench tower is delivered in the air outlet of described interchanger through pipeline, chilling shower nozzle is provided with in described quench tower, described chilling shower nozzle is connected with lye vat by lye pump, the gas cooled by described quench tower is connected with described spray column by two branch roads through the air outlet of quench tower, first branch road is connected with the inlet mouth of sack cleaner with described spray column by the first stopping valve, Dry absorption device successively, second branch road is then directly connected with the inlet mouth of described spray column by the pipeline of installation second stopping valve, shower nozzle in described spray column is connected with circulation alkali pond by alkali liquor absorption pump, and the absorption liquid bottom described spray column delivers to described circulation alkali pond by pipeline, the air outlet of described spray column is connected through the blast inlet of pipeline with described induced draft fan, and the air outlet of described induced draft fan directly delivers to smoke stack emission through pipeline.
2. according to the precious metal pyrolysis described in claim 1 and resource recovering system, it is characterized in that: in described incineration system, also comprise air compressor, described air compressor air outlet is connected with described quench tower, Dry absorption device and sack cleaner through pipeline.
3. according to the precious metal pyrolysis described in claim 1 and resource recovering system, it is characterized in that: the oxygenating of described secondary combustion chamber is provided by oxygenating blower fan, the air outlet of described oxygenating blower fan, after the shell side preheating of described interchanger, is connected with the oxygenating inlet mouth of described secondary combustion chamber through pipeline.
4. precious metal pyrolysis according to claim 1 and resource recovering system, is characterized in that: described chimney jambs arranges permanent thieff hatch.
5. according to the precious metal pyrolysis described in claim 1 and resource recovering system, it is characterized in that: described induced draft fan is by Frequency Converter Control, and described inverter control signal is provided by the temperature sensor collection be arranged on described burning electric furnace.
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| CN201410783082.1A CN104498720A (en) | 2014-12-16 | 2014-12-16 | Pyrolyzing and resource recovery system for noble metals |
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| CN201410783082.1A CN104498720A (en) | 2014-12-16 | 2014-12-16 | Pyrolyzing and resource recovery system for noble metals |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525081A (en) * | 2017-10-13 | 2017-12-29 | 大连科林能源工程技术开发有限公司 | A kind of energy saving and environment friendly processing system of discarded metal paint kettle recycling |
| CN107636177A (en) * | 2015-07-15 | 2018-01-26 | 贺利氏德国有限责任两合公司 | For method and apparatus of the burn off containing precious metal material |
| CN107642785A (en) * | 2017-06-21 | 2018-01-30 | 太仓隆尹机电有限公司 | Waste combustion processing system and equipment |
| CN108504871A (en) * | 2018-03-20 | 2018-09-07 | 孟婷婷 | Precious metal recovery device and method in circuit board incineration tail gas |
| CN111895413A (en) * | 2020-08-11 | 2020-11-06 | 国网湖北省电力有限公司孝感供电公司 | Material waste cable pyrolysis recycling and disposal device and using method thereof |
| CN113969353A (en) * | 2020-07-23 | 2022-01-25 | 黄石加柯环保科技有限公司 | Waste treatment method and treatment equipment for electronic component support plate |
| CN114951230A (en) * | 2022-05-10 | 2022-08-30 | 新疆中博启瑞农业科技有限公司 | Low-purity residual film pyrolysis separation and recovery equipment and method |
| CN116445727A (en) * | 2023-06-14 | 2023-07-18 | 浙江凤登绿能环保股份有限公司 | Method for preparing effective gas and recycling rare noble metals by high-temperature melting and gasification of organic wastes |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107636177A (en) * | 2015-07-15 | 2018-01-26 | 贺利氏德国有限责任两合公司 | For method and apparatus of the burn off containing precious metal material |
| CN107642785A (en) * | 2017-06-21 | 2018-01-30 | 太仓隆尹机电有限公司 | Waste combustion processing system and equipment |
| CN107525081A (en) * | 2017-10-13 | 2017-12-29 | 大连科林能源工程技术开发有限公司 | A kind of energy saving and environment friendly processing system of discarded metal paint kettle recycling |
| CN107525081B (en) * | 2017-10-13 | 2023-09-22 | 大连科林能源工程技术开发有限公司 | Energy-saving and environment-friendly treatment system for recycling waste metal paint barrels |
| CN108504871A (en) * | 2018-03-20 | 2018-09-07 | 孟婷婷 | Precious metal recovery device and method in circuit board incineration tail gas |
| CN113969353A (en) * | 2020-07-23 | 2022-01-25 | 黄石加柯环保科技有限公司 | Waste treatment method and treatment equipment for electronic component support plate |
| CN111895413A (en) * | 2020-08-11 | 2020-11-06 | 国网湖北省电力有限公司孝感供电公司 | Material waste cable pyrolysis recycling and disposal device and using method thereof |
| CN114951230A (en) * | 2022-05-10 | 2022-08-30 | 新疆中博启瑞农业科技有限公司 | Low-purity residual film pyrolysis separation and recovery equipment and method |
| CN116445727A (en) * | 2023-06-14 | 2023-07-18 | 浙江凤登绿能环保股份有限公司 | Method for preparing effective gas and recycling rare noble metals by high-temperature melting and gasification of organic wastes |
| CN116445727B (en) * | 2023-06-14 | 2023-09-15 | 浙江凤登绿能环保股份有限公司 | Method for preparing effective gas and recycling rare noble metals by high-temperature melting and gasification of organic wastes |
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Application publication date: 20150408 |