CN109631569A - A kind of environmentally friendly smelting rotary kiln handling the cadmium of lead containing zinc-iron dangerous waste material - Google Patents
A kind of environmentally friendly smelting rotary kiln handling the cadmium of lead containing zinc-iron dangerous waste material Download PDFInfo
- Publication number
- CN109631569A CN109631569A CN201811506126.0A CN201811506126A CN109631569A CN 109631569 A CN109631569 A CN 109631569A CN 201811506126 A CN201811506126 A CN 201811506126A CN 109631569 A CN109631569 A CN 109631569A
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- CN
- China
- Prior art keywords
- iron
- kiln body
- cadmium
- kiln
- containing zinc
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/10—Rotary-drum furnaces, i.e. horizontal or slightly inclined internally heated, e.g. by means of passages in the wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/30—Arrangements of partitions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/34—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/36—Arrangements of air or gas supply devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/38—Arrangements of cooling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/42—Arrangement of controlling, monitoring, alarm or like devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
- F27B2007/025—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type with different chambers, e.g. treatment zones
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/10—Scrap material used as charge
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of environmentally friendly smelting rotary kilns for handling the cadmium of lead containing zinc-iron dangerous waste material, it is equipped with air-supply burner (4) in the material preheating chamber (5) of kiln body (1) leading portion, is equipped with heating device (7), burner (8) in the smelting room (6) in kiln body (1) middle section；Air preheater (11) are equipped in the cooling chamber (10) of kiln body (1) back segment；Sealing device (12) and automatic slag discharge device, sponge iron concentration equipment are equipped in the tail portion of kiln body (1)；The present invention is suitable for the low-temperature environment-friendly processing of the cadmium dangerous waste materials of lead containing zinc-iron such as chimney soot, meet environmental protection, energy-saving and emission-reduction, recycling economy requirement, have the characteristics that production cost is low, high degree of automation, will play a significant role in the processing of the cadmium dangerous waste material of lead containing zinc-iron.
Description
Technical field
The present invention relates to a kind of non-ferrous metal metallurgy equipment, especially a kind of environmental protection for handling the cadmium of lead containing zinc-iron dangerous waste material
Smelting rotary kiln belongs to cryogenic metallurgy technical field.
Background technique
The chimney soot and lead of steel plant, zinc, copper work chimney soot and slag charge in, because containing the hazardous materials such as zinc-iron lead cadmium
Matter belongs to dangerous waste material, deals with very troublesome, needs to expend a large amount of manpower and financial resources and is handled.At present to containing zinc
The processing of iron lead cadmium dangerous waste material is generally used common rotary kiln coal powder injection powder high-temp combustion and smelts, and there are following disadvantages for the technique
End: 1) exhausted air quantity is big, more containing heavy metal in exhaust gas；2) kiln body is also easy to produce bonding, and equipment life is short；3) smelting chamber temperature is uneven
Weighing apparatus, efficiency is low, and kiln body is easily-deformable；4) product quality is poor；5) production is not easy to manipulate.
Summary of the invention
Technical problem to be solved by the present invention lies in the environmental protection for providing a kind of processing cadmium of lead containing zinc-iron dangerous waste material to smelt
Rotary kiln carries out efficient and environmentally friendly smelting to the dangerous waste material of the cadmium of lead containing zinc-iron, to overcome above-mentioned the deficiencies in the prior art.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
A kind of environmentally friendly smelting rotary kiln handling the cadmium of lead containing zinc-iron dangerous waste material, it includes kiln body, is equipped with kiln in the bottom of kiln body
Body transmission device is equipped with bag collection device, feed inlet and bleeding point in the front end of kiln body；The leading portion of kiln body is material preheating
Room is equipped with air-supply burner in material preheating chamber；The middle section of kiln body is to smelt room, is filled smelting room equipped with indirect heating
It sets, burner, storage lead go out lead device and radiant heat gear；The back segment of kiln body is cooling chamber, is filled in cooling chamber equipped with air preheat
It sets, is equipped with sealing device and automatic slag discharge device, sponge iron concentration equipment in the tail portion of kiln body.
The environmentally friendly smelting rotary kiln of the above-mentioned processing cadmium dangerous waste material of lead containing zinc-iron, the indirect heating apparatus, burning
Device is natural gas or the multiple multi-section-combustion device of other combustible anoxics, is transferred heat to by the kiln wall of thermal conducting material and smelts room.
The environmentally friendly smelting rotary kiln of the processing cadmium of lead containing zinc-iron dangerous waste material above-mentioned, the air-supply burner, air
Preheating device is residual heat using device, by thermal conducting material indirect heating, improves ignition temperature and temperature utilizing status.
Beneficial effects of the present invention: compared with prior art, the invention has the characteristics that:
1, environmentally friendly degree is very high, and the feature of environmental protection is very good.Heating source of the present invention is air preheat, natural gas anoxic repeated combustion and smelting
The full combustion of exhaust gas (co) is refined, the tolerance of generation is about 1/5th of existing common rotary kiln exhausted air quantity, and low temperature smelting
It is few to refine the harmful components generated, rule can be closed after filter device simple process, directly idle discharge is put.The quantity of slag after smelting is also very
Few, the main component (zinc-iron lead cadmium oxygen) in material has all been extracted, and without the additional increased cinder of traditional rotary kiln burning coal
Equal waste residues.And cooling water is recycled, without other waste water.
2, low energy consumption.The present invention can directly burn in material preheating chamber close to the air-supply burner that middle section is arranged useless
Coal gas and zinc fume in gas, the multistage for largely increasing thermal energy, energy saving, while natural gas and preheated air repeatedly fire
It burns, also improves combustion efficiency.The present invention is low temperature smelting, and integral heat sink is few, and exhausted air quantity is few, and it is few to take away heat, energy-saving effect
It is good.
3, superior product quality, the rate of recovery are high.The present invention uses low temperature smelting, generally strongly reducing atmosphere, product time oxidation
Leaded iron tramp is few in zinc, and impurity containing zinc-iron is few in lead bullion, superior product quality；Whole strongly reducing atmosphere keeps sponge iron oxidation few,
Iron purity is high.
4, service life of kiln body is long.Smelting process of the invention carries out under low-temperature reduction atmosphere, is different by multistage in kiln
What the control of atmosphere was realized, be oxidizing atmosphere, burning waste gas, heated material in material preheating chamber；Room and back segment are smelted in middle section
Cooling chamber is strongly reducing atmosphere, realizes the atmosphere protection of reducing and smelting and galvanized iron, and kiln wall bonding is few, and corrosion is also few, can be substantially
Kiln body service life is improved, cost is greatly reduced.
The present invention is a kind of novel low-temperature environment-friendly smelting rotary kiln, can be adapted for steel plant's chimney soot (lead containing zinc-iron
The dangerous waste material of cadmium) low-temperature environment-friendly smelt, be also applied for lead, zinc, copper work chimney soot and slag charge low-temperature environment-friendly smelt, meet
The characteristics of environmental protection, energy-saving and emission-reduction, the requirement of circular economy have production cost low, high degree of automation, is used for steel plant's chimney
When grey (the dangerous waste material of the cadmium of lead containing zinc-iron) processing, also have the characteristics that the zinc-iron rate of recovery is high.The present invention endangers in the cadmium of lead containing zinc-iron
It will play a significant role in the processing of waste material.
Patent No. ZL201110341126.1 in application in 2011 of the present invention and present inventor, Publication No.
The electric heating smelting rotary kiln (hereinafter referred to as former patent) of CN102393138A, application number 201710572254.4 in 2017, have with
Lower essential distinction:
1, heating method is entirely different: the heating source of former patent is mainly electricity, is directly heated by electric heating body.The application uses
Natural gas or other combustible combustions, indirect heat transfer.
2, section is respectively provided with more sufficient heat-exchanger rig before and after kiln body, by air preheat to higher temperature, improves natural gas
With the combustion efficiency of exhaust gas.
Detailed description of the invention
Fig. 1 is principle schematic diagram of the invention.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Specific embodiment
Embodiment 1: as shown in Figure 1, including kiln body 1, kiln body 1 uses rotary kiln form, is equipped with kiln in the bottom of kiln body 1
Body transmission device 2 can drive the average rate in smelting process of kiln body 1 slowly constantly to rotate by kiln body transmission device 2.In kiln
1 front end of body is equipped with bag collection device 15, feed inlet and bleeding point 3, and material is added in kiln body 1 by feed inlet and bleeding point 3.
The leading portion of kiln body 1 is material preheating chamber 5, in material preheating chamber 5 close to smelting at room 6 equipped with air-supply burner 4, air-supply burning
Device 4 can be with intelligent control air quantity, coal gas and zinc fume in direct burning waste gas, heated material, energy saving.Kiln body 1
Middle section is to smelt room 6, and indirect heating apparatus 7 and burner 8, indirect heating apparatus 7 and burner are equipped on smelting room 6
8 be natural gas or the multiple multi-section-combustion device of other combustible anoxics, it can be achieved that full combustion.It can be arranged in smelting room 6 more
A temperature probe, and temperature signal is back to controller, by controller adjusting burner 8, to realize automatic temperature controlling
Low temperature smelting.Storage lead is equipped at the rear portion for smelting room 6 and goes out lead device 13 and radiation heat shield 9, and radiation heat shield 9 is for blocking smelting
The radiant heat of refining room 6 reaches cooling chamber 10, energy saving；The back segment of kiln body 1 is cooling chamber 10, and it is pre- to be equipped with air in cooling chamber 10
Thermal 11, air-supply burner 4, air preheater 11 are residual heat using device, by thermal conducting material indirect heating, are mentioned
Combustion temperatures and combustion efficiency.In the tail portion of kiln body 1 equipped with sealing device 12 and automatic slag discharge device, sponge iron magnetic separation dress
It sets.
Embodiments of the present invention are not limited to the above embodiments, and that makes without departing from the purpose of the present invention is various
Within variation all belongs to the scope of protection of the present invention.
Claims (3)
1. a kind of environmentally friendly smelting rotary kiln for handling the cadmium of lead containing zinc-iron dangerous waste material, it is characterised in that: including kiln body (1), in kiln
The bottom of body (1) is equipped with kiln body transmission device (2), is equipped with bag collection device (15), feed inlet and pumping in the front end of kiln body (1)
Port (3)；The leading portion of kiln body (1) is material preheating chamber (5), is equipped with air-supply burner (4) in material preheating chamber (5)；Kiln body
(1) middle section is to smelt room (6), goes out lead device equipped with indirect heating apparatus (7), burner (8), storage lead smelting room (6)
(13) and heat shield (9) are radiated；The back segment of kiln body (1) is cooling chamber (10), is equipped with air preheater in cooling chamber (10)
(11)；Sealing device (12) and automatic slag discharge device, sponge iron concentration equipment are equipped in the tail portion of kiln body (1).
2. the environmentally friendly smelting rotary kiln of the processing cadmium of lead containing zinc-iron dangerous waste material according to claim 1, it is characterised in that: institute
Indirect heating apparatus (7), the burner (8) stated are natural gas or the multiple multi-section-combustion device of other combustible anoxics, are passed through
The kiln wall of thermal conducting material, which transfers heat to, smelts room (6).
3. the environmentally friendly smelting rotary kiln of the processing cadmium of lead containing zinc-iron dangerous waste material according to claim 1, it is characterised in that: institute
Air-supply burner (4), the air preheater (11) stated are residual heat using device, by thermal conducting material indirect heating, are mentioned
Combustion temperatures and combustion efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506126.0A CN109631569A (en) | 2018-12-10 | 2018-12-10 | A kind of environmentally friendly smelting rotary kiln handling the cadmium of lead containing zinc-iron dangerous waste material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506126.0A CN109631569A (en) | 2018-12-10 | 2018-12-10 | A kind of environmentally friendly smelting rotary kiln handling the cadmium of lead containing zinc-iron dangerous waste material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109631569A true CN109631569A (en) | 2019-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811506126.0A Pending CN109631569A (en) | 2018-12-10 | 2018-12-10 | A kind of environmentally friendly smelting rotary kiln handling the cadmium of lead containing zinc-iron dangerous waste material |
Country Status (1)
| Country | Link |
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| CN (1) | CN109631569A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046386A (en) * | 2022-08-12 | 2022-09-13 | 淄博市鲁中耐火材料有限公司 | Rotary solid material calcining device |
| CN115342633A (en) * | 2022-08-19 | 2022-11-15 | 山东省红森林新材料科技有限公司 | Combined rotary kiln and system and method for deoiling, dezincing and recovering light and thin scrap steel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353250A (en) * | 2011-11-02 | 2012-02-15 | 徐建成 | Zinc-cadmium electric heating smelting rotary kiln |
| CN102393138A (en) * | 2011-11-02 | 2012-03-28 | 徐建成 | Electric heating smelting rotary kiln |
| CN102766718A (en) * | 2012-07-24 | 2012-11-07 | 新冶高科技集团有限公司 | Method for producing sponge iron and zinc-rich materials by blast furnace zinc-containing ash |
| CN107218802A (en) * | 2017-07-13 | 2017-09-29 | 贵州仙劲锌业有限公司 | A kind of low-temperature environment-friendly electric heating smelting rotary kiln for handling the cadmium dangerous waste material of lead containing zinc-iron |
| CN107326185A (en) * | 2017-07-13 | 2017-11-07 | 贵州仙劲锌业有限公司 | A kind of low-temperature environment-friendly smelting process of the cadmium of lead containing zinc-iron dangerous waste material |
| CN207019461U (en) * | 2017-07-13 | 2018-02-16 | 贵州仙劲锌业有限公司 | Handle the low-temperature environment-friendly electric heating smelting rotary kiln of the cadmium dangerous waste material of lead containing zinc-iron |
-
2018
- 2018-12-10 CN CN201811506126.0A patent/CN109631569A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353250A (en) * | 2011-11-02 | 2012-02-15 | 徐建成 | Zinc-cadmium electric heating smelting rotary kiln |
| CN102393138A (en) * | 2011-11-02 | 2012-03-28 | 徐建成 | Electric heating smelting rotary kiln |
| CN102766718A (en) * | 2012-07-24 | 2012-11-07 | 新冶高科技集团有限公司 | Method for producing sponge iron and zinc-rich materials by blast furnace zinc-containing ash |
| CN107218802A (en) * | 2017-07-13 | 2017-09-29 | 贵州仙劲锌业有限公司 | A kind of low-temperature environment-friendly electric heating smelting rotary kiln for handling the cadmium dangerous waste material of lead containing zinc-iron |
| CN107326185A (en) * | 2017-07-13 | 2017-11-07 | 贵州仙劲锌业有限公司 | A kind of low-temperature environment-friendly smelting process of the cadmium of lead containing zinc-iron dangerous waste material |
| CN207019461U (en) * | 2017-07-13 | 2018-02-16 | 贵州仙劲锌业有限公司 | Handle the low-temperature environment-friendly electric heating smelting rotary kiln of the cadmium dangerous waste material of lead containing zinc-iron |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046386A (en) * | 2022-08-12 | 2022-09-13 | 淄博市鲁中耐火材料有限公司 | Rotary solid material calcining device |
| CN115046386B (en) * | 2022-08-12 | 2022-11-04 | 淄博市鲁中耐火材料有限公司 | Rotary solid material calcining device |
| CN115342633A (en) * | 2022-08-19 | 2022-11-15 | 山东省红森林新材料科技有限公司 | Combined rotary kiln and system and method for deoiling, dezincing and recovering light and thin scrap steel |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190416 |