CN206291730U - A kind of adverse current roasting system - Google Patents
A kind of adverse current roasting system Download PDFInfo
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- CN206291730U CN206291730U CN201621371809.6U CN201621371809U CN206291730U CN 206291730 U CN206291730 U CN 206291730U CN 201621371809 U CN201621371809 U CN 201621371809U CN 206291730 U CN206291730 U CN 206291730U
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- outlet
- calcining kiln
- feed bin
- bin
- comminutor
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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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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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
- Y02P10/25—Process efficiency
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a kind of adverse current roasting system; including calcining kiln; comminutor, transmission belt and several be arranged on feed bin above transmission belt; material is connected through transmission belt with the import of comminutor in feed bin; the outlet lower section of comminutor is provided with collecting bin; the boosted machine lifting of outlet of collecting bin is connected with the charging aperture at the top of calcining kiln; it is divided into low temperature in the kiln body burner hearth of calcining kiln from top to bottom and bakees area, middle temperature baking area and high temperature baking area, water-cooled slag chute is provided with below calcining kiln outlet at bottom.The utility model can continuously be calcined, and eliminate traditional approach coal gas or natural gas continuous ignition device, granulation material vertical drop and thermal current reverse flow, take full advantage of remaining heat energy, bakee granulation material to remove physics moisture, and dehydration rate reaches more than 80%.
Description
Technical field
The utility model belongs to non-ferrous metal pyrometallurgical smelting technical field, is specifically related to a kind of adverse current roasting system.
Background technology
Traditional blast furnace reduction melting technology, first has to be calcined pretreatment mineral, and burning machine is generally ring type roasting
Machine and belt type roasting machine；Next filters out qualified roasting block, then is transported to blast furnace reduction melting, and output metal or alloy is produced
Product.Traditional burning machine thermal energy consumption is big, and occupation area of equipment is big, and cost of investment is high, roasting time it is short and be heated it is uneven, into
Product rate is low, and flue dust collecting system sealing effect is poor, environmental pollution is big.In view of this, have and set than a kind of necessity new roasting of design
Standby and roasting system.
Utility model content
The purpose of this utility model is to overcome the shortcomings of prior art, adapts to reality need, there is provided a kind of adverse current is roasted
Burning system.
In order to realize the purpose of utility model, the technical scheme that utility model is used for：
A kind of adverse current roasting system, including calcining kiln, comminutor, transmission belt and several be arranged on material above transmission belt
Storehouse, material is connected through transmission belt with the import of comminutor in feed bin, the outlet of comminutor lower section is provided with collecting bin, and collecting bin goes out
The boosted machine lifting of mouth is connected with the charging aperture at the top of calcining kiln, is divided into low temperature baking in the kiln body burner hearth of calcining kiln from top to bottom
Area, middle temperature bakee area and high temperature bakees area, and water-cooled slag chute is provided with below calcining kiln outlet at bottom.
Feeding warehouse is provided with the top of the calcining kiln kiln body, distributing device is provided with feeding warehouse, the bottom of kiln body is provided with discharging
Storehouse, the both sides of discharge bin are connected through pipeline with air blower.
Feed bin includes three non-ferrous metal solid waste material feed bins, a fine coal feed bin and an agstone feed bins.
There are Turbogrid plates the bosom both sides of discharge bin.
The flue outlet of calcining kiln is provided with the flue being connected with dust-precipitator, the outlet connection air exhauster of dust-precipitator, air exhauster
Outlet be connected with the entrance of desulfurizing tower, the outlet of desulfurizing tower is connected with chimney.
The utility model is adapted to the sintering pretreatment of non-ferrous metal solid waste material, is that next step oxygen-enriched side-blowing smelts creation bar
Part.Dangerous waste non-ferrous metal slag with various grades disposably completes mechanical water as raw material by dispensing, granulation, adverse current calcining kiln
Point, the baking of chemical moisture, then roasting obtains being adapted to the sintering pellet of regeneration reducing stove.Energy consumption 60% can be saved, operation is saved
Cost 50%.
This have the advantage that compared with traditional belt type roasting machine or circular grate pelletizing machine：
1. can continuously be calcined, eliminate traditional approach coal gas or natural gas continuous ignition device.
2. granulation material vertical drop and thermal current reverse flow, takes full advantage of remaining heat energy, bakee granulation material with
Removing physics moisture, dehydration rate reaches more than 80%.
3. overcome the temperature of tradition roasting dew point, bed of material overly moist, condensed water phenomenon such as occur, it is to avoid occur sposh,
Mushy stage, enhances the gas permeability of material.
4. equipment is simple, and floor space is small, and cost of investment is the 50% of conventional art.
5. material residence time in kiln body is long, is heated evenly, and roasting agglomerate yield rate is higher by 0.5 than conventional art-
1 times.
6. water-cooled slag chute is used so that roasting efficiency improves 4 times, has reclaimed waste heat.
7., for the castaway slag wet basis material of hydrometallurgy output, wherein 35% chemically combined water of crystallization can be removed effectively,
Energy consumption is only the 40% of traditional approach.
8., for the non-ferrous metal element rich in low melting point, prereduction effect can be reached.
The utility model nonferrous metals recycling rate is high, without secondary environmental pollution.
Brief description of the drawings
Fig. 1 is the structural representation of utility model.
In figure, non-ferrous metal solid waste material feed bin 1,2,3, fine coal feed bin 4, agstone feed bin 5, calcining kiln 6, transmission belt 7,
Distributing device 8, comminutor 9, collecting bin 10, elevator 11, feeding warehouse 12, flue 13, Turbogrid plates 14, air blower 15, discharge bin 16,
Water-cooled slag chute 17, low temperature bakees area 18, and middle temperature bakees area 19, and high temperature bakees area 20, dust-precipitator 21, desulfurizing tower 22, air exhauster
23, chimney 24.
Specific embodiment
Utility model is further illustrated with reference to the accompanying drawings and examples：
Embodiment：It is shown in Figure 1.
A kind of adverse current roasting system, including calcining kiln 6, comminutor 9, transmission belt 7 and several be arranged on the top of transmission belt 7
Feed bin, material is connected through transmission belt with the import of comminutor 9 in feed bin, and the outlet of comminutor 9 lower section is provided with collecting bin 10, collects
Outlet boosted machine 11 lifting of feed bin 10 is connected with the charging aperture at the top of calcining kiln 6, and the kiln body burner hearth of calcining kiln 6 is interior from upper past
Under be divided into low temperature bakee area 18, middle temperature bakee area 19 and high temperature baking area 20, be provided with water-cooled slag below the outlet at bottom of calcining kiln 6
Chute 17.
Feed bin has 5, in 5 feed bins, there is the material of solid waste containing non-ferrous metal feed bin 3,1 storehouse of fine coal material 4,1 lime stone
Filler bin 5, classifies non-ferrous metal slag charge according to metal content is high, medium and low in non-ferrous metal solid waste material feed bin, i.e., according to grade
Less than 30%, 30%-50%, more than 50% classification point storehouse.
With water or the solution containing similar non-ferrous metal is as wetting agent when pelletizing, additive agstone consumption is comminutor 9
The 5%-15% of weight is expected after dispensing；Pulverized coal consumption is the 10%-30% for expecting to weigh after dispensing.
Calcining kiln 6 is vertical structure, and top is charging aperture, and bottom is discharging opening, and body of heater is manufactured for ordinary carbon steel, and inwall is built
Refractory brick is built for burner hearth, with natural gas or heavy oil as fuel, continuous burning of once lighting a fire.Charging aperture is provided with feeding warehouse 12 and cigarette
Distributing device 8 is provided with cover, feeding warehouse 12, the inlet amount of calcining kiln 6 is to be controlled by discharging opening signal, it is ensured that sintering effect, to control
Material residence time in burner hearth, the discharging opening lower section of kiln body sets discharge bin 16, and the both sides of discharge bin 16 are through pipeline and air blast
Machine 15 is connected, and there are Turbogrid plates 14 the bosom both sides of discharge bin 16, and the discharging opening discharge of sintering pellet self-unloading hopper 16 falls into
Rapidly cooled down in water-cooled slag chute 17.
Three humidity provinces are divided into calcining kiln 6 from top to bottom, 100-200 DEG C of baking wet basis pellet of temperature dries it
Removing wherein physics moisture, as discharging opening blowing is operated, pellet continues vertical drop to compared with low temperature baking area, temperature in burner hearth
200-300 DEG C, further removing wherein chemically combined water of crystallization, is further continued for vertical drop and bakees 300-500 DEG C of area and height in middle temperature
Temperature bakees 600-900 DEG C of area；Ensure that pellet residence time in burner hearth is no less than 2 h, complete reduction sintering process.
Petticoat pipe is connected through flue 13 with dust-precipitator 21, and the outlet connection air exhauster 23 of dust-precipitator 21, air exhauster 23 is exported and taken off
Sulphur tower 22 is connected, and the gas after desulfurization is discharged by 60m chimneys 24.Air blower 15 can be for oxygen-enriched air, and air exhauster 23 can be with
Guiding flue gas enters flue 13, can form gas-solid opposite adverse current when both work in kiln.
Specific calcination stepses of the present utility model are as follows；
Step 1：Non-ferrous metal will be contained and be crushed to big small pellets within 5 mm, according to copper in waste material or nickel non-ferrous metal
Total content is divided into tri- kinds of 1%-30%, 30%-50%, 50%-60%, is respectively added in three non-ferrous metal solid waste material feed bins, by 120
Mesh above coal dust and 120 mesh above agstones, are respectively added in corresponding feed bin；
Step 2：By three kinds of waste materials according to 1:1:2 ratio dispensings, claim metering to be transported to respectively in transmission belt 7, together by belt
When claim metering to be sent in transmission belt 7 by belt according to the ratio of waste material gross weight 10% and 5% respectively coal dust and agstone；Continuously
Uniformly it is sent in granulator 9, grain of the particle diameter size in 10-50 mm scopes is prepared according to the stirring that adds water of moisture content 20%
Material；
Step 3：The pellet that granulator 9 is made is collected by collecting bin 10, and pellet is uniformly arranged into elevator 11, is carried
The feeding warehouse 12 that pellet is uniformly put into machine 11 calcining kiln 6 is risen, pellet is slipped to the distributing device 8 inside feeding warehouse 12 from feed bin
In, and uniformly fallen into kiln body burner hearth by distributing device 8；
Step 4：Air blower 15 and air exhauster 23 are opened, makes thermal current countercurrently upward, bakee the pellet of wet basis, make it
Removing wherein physics moisture is dried, as discharging opening blowing is operated, pellet continuation vertical drop bakees area to compared with low temperature in burner hearth,
200-300 DEG C of temperature, further removing wherein chemically combined water of crystallization, is further continued for vertical drop and bakees 300-500 DEG C of area in middle temperature
600-900 DEG C of area is bakeed with high temperature；Ensure that pellet residence time in burner hearth is no less than 2 h, complete reduction sintering process；
Step 5：The pellet of completion reduction sintering process falls into water-cooled slag chute 17 along discharge bin and rapidly cools down, and adjusts
Cooling water flow 30-50 m3/h, the pellet temperature after roasting is reduced to less than 100 DEG C；
Step 6：The pellet sintered after screening roasting, selects pellet diameter size to enter next step operation for 6-30 mm, is not inconsistent
Return granulator 9 after desired pellet is directly returned or screened again is closed to continue to pelletize.
Claims (5)
1. a kind of adverse current roasting system, including calcining kiln（6）, comminutor（9）, transmission belt（7）Transmission belt is arranged on several
（7）The feed bin of top, it is characterised in that material is through transmission belt and comminutor in feed bin（9）Import connection, comminutor（9）'s
Outlet lower section is provided with collecting bin（10）, collecting bin（10）The boosted machine of outlet（11）Lifting and calcining kiln（6）The charging at top
Mouth connection, calcining kiln（6）Kiln body burner hearth in be divided into from top to bottom low temperature bakee area（18）, middle temperature bakee area（19）Dried with high temperature
Roasting area（20）, calcining kiln（6）Water-cooled slag chute is provided with below outlet at bottom（17）.
2. a kind of adverse current roasting system according to claim 1, it is characterised in that the calcining kiln（6）The top of kiln body
It is provided with feeding warehouse（12）, feeding warehouse（12）Inside it is provided with distributing device（8）, the bottom of kiln body is provided with discharge bin（16）, discharge bin（16）
Both sides through pipeline and air blower（15）Connection.
3. a kind of adverse current roasting system according to claim 1, it is characterised in that feed bin includes that three non-ferrous metals are consolidated
Waste material feed bin（1、2、3）, a fine coal feed bin（4）With an agstone feed bin（5）.
4. a kind of adverse current roasting system according to claim 2, it is characterised in that discharge bin（16）Bosom both sides
There are Turbogrid plates（14）.
5. a kind of adverse current roasting system according to any one of Claims 1-4, it is characterised in that calcining kiln（6）Cigarette
Road outlet is provided with and dust-precipitator（21）The flue of connection（13）, dust-precipitator（21）Outlet connection air exhauster（23）, air exhauster
（23）Outlet and desulfurizing tower（22）Entrance connection, desulfurizing tower（22）Outlet and chimney（24）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621371809.6U CN206291730U (en) | 2016-12-14 | 2016-12-14 | A kind of adverse current roasting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621371809.6U CN206291730U (en) | 2016-12-14 | 2016-12-14 | A kind of adverse current roasting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206291730U true CN206291730U (en) | 2017-06-30 |
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ID=59104353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621371809.6U Active CN206291730U (en) | 2016-12-14 | 2016-12-14 | A kind of adverse current roasting system |
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| Country | Link |
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| CN (1) | CN206291730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798776A (en) * | 2018-12-14 | 2019-05-24 | 浙江开化合成材料有限公司 | A kind of automatic slag-tapping system of thermal energy recycling |
-
2016
- 2016-12-14 CN CN201621371809.6U patent/CN206291730U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798776A (en) * | 2018-12-14 | 2019-05-24 | 浙江开化合成材料有限公司 | A kind of automatic slag-tapping system of thermal energy recycling |
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