CN103961970A - Dry-method arsenic-recovery quenching column system for arsenic-containing smeltingflue gas - Google Patents
Dry-method arsenic-recovery quenching column system for arsenic-containing smeltingflue gas Download PDFInfo
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- CN103961970A CN103961970A CN201410134958.XA CN201410134958A CN103961970A CN 103961970 A CN103961970 A CN 103961970A CN 201410134958 A CN201410134958 A CN 201410134958A CN 103961970 A CN103961970 A CN 103961970A
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- flue gas
- cold column
- arsenic
- flash cold
- tower body
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Abstract
The invention relates to a dry-method arsenic-recovery quenching column system for arsenic-containing smeltingflue gas. The system comprises a quenching column body, a flue gas inlet and a flue gas outlet, wherein the flue gas inlet is arranged at the top of the quenching column body; the flue gas outlet is arranged at the bottom of the quenching column body; the quenching column bodyand the flue gas outlet are connected in a sealed manner; a flue gas guiding plate is arranged between the quenching column bodyand the flue gas inlet; at least one two-fluidinside-mixing type spray gun is arranged on the side wall of the upper part of the quenching column body, the head of each two-fluidinside-mixing type spray gun is arranged inside the quenching column body, and the tail of each two-fluidinside-mixing type spray gun is arranged outside the quenching column body; the tail of each two-fluidinside-mixing type spray gun is connected with a liquid charging pipe and a gas charging pipe, and a liquid flow regulating valve and a gas flow regulating valve are arranged on each liquid charging pipe and each gas charging pipe respectively. By the aid of the system, the hot flue gas can be quickly cooled to therequired temperature in the column, meanwhile, the exhausted flue gas does not contain water, the inner wall of the column is free from liquidcondensation, and the control effect is good.
Description
Technical field
The present invention relates to flue gas and receive arsenic equipment technical field, specifically a kind of containing arsenic flue gas during smelting dry method receipts arsenic flash cold column system.
Background technology
In nonferrous metallurgical process, harmful element arsenic contained in ore has entered flue gas system after roasting, and for preventing that arsenic from entering atmosphere, contaminated environment must separate arsenic and reclaim from flue gas.The technique that reclaims arsenic from flue gas has two kinds of wet method and dry method.Wherein wet arsenic technique is used early, the first roasting of high arsenic ore, and flue gas enters relieving haperacidity purification section after most dirt is accepted in dedusting; Use again three grades of washings of diluted acid of 3-20%, finally produce the concentrated sulfuric acid; Collect containing AS
2o
3solution is through removing S0
2gas, Jin mono-Walk cooling crystallization, centrifuge washing dehydration and dry, make AS
2o
3product.Wet arsenic is received arsenic in sulfuric acid purification workshop section, has investment large, the high deficiency of cost recovery.It is two-section roasting that dry method is received arsenic technique, and the roasting kiln roasting by ore in fluidisation state makes arsenic volatilization wherein enter flue gas.Then flue gas is being separated out arsenic through flash cold column chilling.Wherein, flash cold column is most important, if shower water deficiency, smoke gas excess Temperature causes flue gas arsenic content high, affects the rate of recovery of arsenic, and flue-gas temperature is too high will burn out cloth bag; If shower water is excessive, flue-gas temperature is too low, will cause condensation and dewfall, causes equipment corrosion, and bonding cloth bag rises SR; If shower water is inhomogeneous, flue gas is lowered the temperature gradually, the AS of gaseous state
2o
3can be varied to vitreum blocking pipe.
Existing flash cold column, generally, at smoke inlet position mounting spray head, is not easy to control flow distribution, and easily stops up, and equipment cost is high.
Summary of the invention
The present invention is in order to overcome the deficiencies in the prior art, provide a kind of simple in structure, hot flue gas can be cooled to rapidly in tower to desired temperature, the flue gas of simultaneously discharging is not moisture, and inner wall of tower no liquid is condensed, controlled and effective receives arsenic flash cold column system containing arsenic flue gas during smelting dry method.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of containing arsenic flue gas during smelting dry method receipts arsenic flash cold column system, comprise flash cold column tower body, be arranged at the gas approach at flash cold column tower body top and be arranged at the exhanst gas outlet of flash cold column tower body bottom, between described flash cold column tower body and exhanst gas outlet, be tightly connected, between described flash cold column tower body and gas approach, be provided with smoke deflector; Described flash cold column tower body upper portion side wall is provided with at least one two-fluid internal-mixing spray gun, and described two-fluid internal-mixing gun head is arranged at flash cold column tower body inside, and afterbody is arranged at flash cold column tower body outside; Described two-fluid internal-mixing spray gun afterbody is connected with liquid feed pipe and gas feed pipe, on described liquid feed pipe and gas feed pipe, is respectively equipped with liquid flow regulating valve and gas flow regulating valve.
Further, described two-fluid internal-mixing spray gun is one or more, in the time being multiple,
Two-fluid internal-mixing spray gun is uniformly distributed in the form of a ring in flash cold column tower body.
Again further, described exhanst gas outlet is also provided with temperature monitoring.
Specifically, described temperature monitoring is thermocouple.
Further, between described liquid flow regulating valve and gas flow regulating valve and exhanst gas outlet temperature monitoring, be connected with holding wire.
The invention has the beneficial effects as follows:
The mist droplet forming by two-fluid internal-mixing spray gun sprays in high-temperature flue gas, and this mist droplet absorbs heat in evaporation process, thereby flue-gas temperature is declined rapidly, makes the AS of gaseous state
2o
3be frozen into solid, there is coalescence in this solid and mist droplet collision, forms larger particles.Gas, the flow quantity of the temperature that exports flue gas by monitoring to two-fluid internal-mixing spray gun carries out fine adjustment, can be used for the fast cooling containing arsenic flue gas during smelting, makes the AS of gaseous state
2o
3be frozen into solid, system is automatically controlled, is not stopped up, safe and reliable, and SR is little, energy-saving and water-saving, and cost is low.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In Fig. 1: gas approach 1, smoke deflector 2, flash cold column tower body 3, exhanst gas outlet 4, two-fluid internal-mixing spray gun 5, liquid flow regulating valve 6, liquid feed pipe 7, gas flow regulating valve 8, gas feed pipe 9, thermocouple 10, holding wire 11.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
As shown in Figure 1, a kind of containing arsenic flue gas during smelting dry method receipts arsenic flash cold column system, comprise flash cold column tower body 3, be arranged at the gas approach 1 at flash cold column tower body top and be arranged at the exhanst gas outlet 4 of flash cold column tower body bottom, between flash cold column tower body 3 and gas approach 1, be provided with smoke deflector 2, between flash cold column tower body 3 and exhanst gas outlet 4, be tightly connected; Exhanst gas outlet 4 is provided with thermocouple 10; Flash cold column tower body 3 upper portion side wall are provided with at least one two-fluid internal-mixing spray gun 5, two-fluid internal-mixing spray gun 5 heads are positioned at flash cold column tower body inside, afterbody is positioned at flash cold column tower body outside, and when two-fluid internal-mixing spray gun 5 is while being multiple, it is uniformly distributed in the form of a ring in flash cold column tower body; Two-fluid internal-mixing spray gun 5 afterbodys are connected with liquid feed pipe 7 and gas feed pipe 9, are respectively equipped with liquid flow regulating valve 6 and gas flow regulating valve 8 on liquid feed pipe and gas feed pipe.Between liquid flow regulating valve 6 and gas flow regulating valve 8 and thermocouple 10, be connected with holding wire 11.
Too low in order to prevent near the local temperature of flash cold column tower body wall part, form As
2o
3vitreum, is incubated flash cold column tower body.
Flue gas is entered in flash cold column tower body after being arranged at the smoke deflector distribution between gas approach and flash cold column tower body by gas approach, the mist droplet that two-fluid internal-mixing spray gun forms sprays in high-temperature flue gas, this mist droplet constantly evaporates absorption heat, and being gasified totally in the certain distance of flash cold column tower body bottom, the temperature of high-temperature flue gas declines rapidly, the AS of gaseous state
2o
3be frozen into solid, and with mist droplet collision, coalescence occur, form larger particles, the ash-laden gas after cooling enters follow-up dedusting and receives arsenic system.
In the present embodiment, adopt two-fluid internal-mixing spray gun, produce the droplet that average diameter is less than 70 μ m, and by injection flow rate is accurately controlled, make the droplet can rapid evaporation, thereby the temperature of flue gas can be declined rapidly, and AS after solidifying
2o
3particle is also dry ash, and the sack cleaner that is beneficial to rear operation is collected.
Claims (5)
1. receive arsenic flash cold column system containing arsenic flue gas during smelting dry method for one kind, comprise flash cold column tower body, be arranged at the gas approach at flash cold column tower body top and be arranged at the exhanst gas outlet of flash cold column tower body bottom, between described flash cold column tower body and exhanst gas outlet, be tightly connected, it is characterized in that: between described flash cold column tower body and gas approach, be provided with smoke deflector; Described flash cold column tower body upper portion side wall is provided with at least one two-fluid internal-mixing spray gun, and described two-fluid internal-mixing gun head is arranged at flash cold column tower body inside, and afterbody is arranged at flash cold column tower body outside; Described two-fluid internal-mixing spray gun afterbody is connected with liquid feed pipe and gas feed pipe, on described liquid feed pipe and gas feed pipe, is respectively equipped with liquid flow regulating valve and gas flow regulating valve.
2. one according to claim 1 is received arsenic flash cold column system containing arsenic flue gas during smelting dry method, it is characterized in that: described two-fluid internal-mixing spray gun is one or more, and in the time being multiple, two-fluid internal-mixing spray gun is uniformly distributed in the form of a ring in flash cold column tower body.
3. one according to claim 1 is received arsenic flash cold column system containing arsenic flue gas during smelting dry method, it is characterized in that: described exhanst gas outlet is also provided with temperature monitoring.
4. one according to claim 3 is received arsenic flash cold column system containing arsenic flue gas during smelting dry method, it is characterized in that: described temperature monitoring is thermocouple.
5. receive arsenic flash cold column system according to the one described in claim 1 or 3 containing arsenic flue gas during smelting dry method, it is characterized in that: between described liquid flow regulating valve and gas flow regulating valve and exhanst gas outlet temperature monitoring, be connected with holding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134958.XA CN103961970B (en) | 2013-10-16 | 2014-04-04 | A kind of containing arsenic flue gas during smelting dry method receipts arsenic flash cold column system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483921.3 | 2013-10-16 | ||
| CN201310483921 | 2013-10-16 | ||
| CN201410134958.XA CN103961970B (en) | 2013-10-16 | 2014-04-04 | A kind of containing arsenic flue gas during smelting dry method receipts arsenic flash cold column system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103961970A true CN103961970A (en) | 2014-08-06 |
| CN103961970B CN103961970B (en) | 2016-01-20 |
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ID=51232261
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410134958.XA Active CN103961970B (en) | 2013-10-16 | 2014-04-04 | A kind of containing arsenic flue gas during smelting dry method receipts arsenic flash cold column system |
| CN201420162798.5U Expired - Lifetime CN203886384U (en) | 2013-10-16 | 2014-04-04 | Dry-process arsenic recycling flash cold column system for arsenic-containing smelting flue gas |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420162798.5U Expired - Lifetime CN203886384U (en) | 2013-10-16 | 2014-04-04 | Dry-process arsenic recycling flash cold column system for arsenic-containing smelting flue gas |
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| CN (2) | CN103961970B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105087946A (en) * | 2015-09-02 | 2015-11-25 | 云南锡业股份有限公司铜业分公司 | System and method for recycling arsenic from copper smelting smoke dust |
| CN105671321A (en) * | 2016-04-19 | 2016-06-15 | 济源市欣欣实业有限公司 | Metallurgical off-gas quench tower for dry-method arsenic collection |
| CN107596854A (en) * | 2017-10-13 | 2018-01-19 | 北京创昱科技有限公司 | The processing unit and method of a kind of tail gas of steam containing arsenic |
| CN109340804A (en) * | 2018-10-08 | 2019-02-15 | 新中天环保股份有限公司 | A kind of chilling tower of two-fluid spray system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103961970B (en) * | 2013-10-16 | 2016-01-20 | 江苏蓝电环保股份有限公司 | A kind of containing arsenic flue gas during smelting dry method receipts arsenic flash cold column system |
| CN110280125B (en) * | 2019-06-27 | 2022-03-11 | 上海交通大学 | Containing arsenic and SO3Dry purification method of smelting flue gas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275743A (en) * | 2008-04-30 | 2008-10-01 | 浙江大学 | Danger waste material rotary type fluidization cold slag three-segment incinerator |
| CN101701716A (en) * | 2009-11-16 | 2010-05-05 | 常州市武进东方除尘设备有限公司 | Quenching device for processing smoke generated by burning garbage and smoke processing system thereof |
| CN102494347A (en) * | 2011-12-14 | 2012-06-13 | 江苏中奥健康环保科技发展有限公司 | Flue gas quenching tower |
| CN203886384U (en) * | 2013-10-16 | 2014-10-22 | 泰兴电除尘设备厂有限公司 | Dry-process arsenic recycling flash cold column system for arsenic-containing smelting flue gas |
-
2014
- 2014-04-04 CN CN201410134958.XA patent/CN103961970B/en active Active
- 2014-04-04 CN CN201420162798.5U patent/CN203886384U/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275743A (en) * | 2008-04-30 | 2008-10-01 | 浙江大学 | Danger waste material rotary type fluidization cold slag three-segment incinerator |
| CN101701716A (en) * | 2009-11-16 | 2010-05-05 | 常州市武进东方除尘设备有限公司 | Quenching device for processing smoke generated by burning garbage and smoke processing system thereof |
| CN102494347A (en) * | 2011-12-14 | 2012-06-13 | 江苏中奥健康环保科技发展有限公司 | Flue gas quenching tower |
| CN203886384U (en) * | 2013-10-16 | 2014-10-22 | 泰兴电除尘设备厂有限公司 | Dry-process arsenic recycling flash cold column system for arsenic-containing smelting flue gas |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105087946A (en) * | 2015-09-02 | 2015-11-25 | 云南锡业股份有限公司铜业分公司 | System and method for recycling arsenic from copper smelting smoke dust |
| CN105671321A (en) * | 2016-04-19 | 2016-06-15 | 济源市欣欣实业有限公司 | Metallurgical off-gas quench tower for dry-method arsenic collection |
| CN107596854A (en) * | 2017-10-13 | 2018-01-19 | 北京创昱科技有限公司 | The processing unit and method of a kind of tail gas of steam containing arsenic |
| CN109340804A (en) * | 2018-10-08 | 2019-02-15 | 新中天环保股份有限公司 | A kind of chilling tower of two-fluid spray system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103961970B (en) | 2016-01-20 |
| CN203886384U (en) | 2014-10-22 |
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Address after: 225400, No. 68, Huan Xi Road, Taixing City Industrial Zone, Jiangsu, Taizhou Applicant after: JIANGSU LANDIAN ENVIRONMENTAL PROTION CO., LTD. Address before: 225400, Zhenxing Road, Taixing Industrial Zone, Taizhou, Jiangsu 6, China Applicant before: TAIXING ELECTROSTATIC PRECIPITATION EQUIPMENT FACTORY CO., LTD. |
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