CN207405194U - A kind of blast furnace dedusting ash ironmaking rotary kiln - Google Patents
A kind of blast furnace dedusting ash ironmaking rotary kiln Download PDFInfo
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- CN207405194U CN207405194U CN201721260705.2U CN201721260705U CN207405194U CN 207405194 U CN207405194 U CN 207405194U CN 201721260705 U CN201721260705 U CN 201721260705U CN 207405194 U CN207405194 U CN 207405194U
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- regulating cavity
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- auxiliary regulating
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Abstract
The utility model is related to a kind of blast furnace dedusting ash ironmaking rotary kilns, belong to the comprehensive utilization device technical field of metallurgical solid waste, including the kiln body being obliquely installed, combustion chamber is provided in kiln body, kiln body is provided outside segmented auxiliary regulating cavity, and segmented auxiliary regulating cavity is included from the high-end preheating section auxiliary regulating cavity set gradually to low side, reduction section auxiliary regulating cavity, granulated iron section auxiliary regulating cavity and fusing section auxiliary regulating cavity；Segmented auxiliary regulating cavity is both provided with inlet and outlet and temperature sensor, and combustion chamber is interior to be respectively arranged with temperature sensor with segmented auxiliary regulating cavity correspondence position, and temperature sensor and inlet and outlet are electrically connected with control device.The utility model has is provided with combustion chamber and segmented auxiliary regulating cavity on rotary kiln, and blast furnace dedusting ash can accurately be controlled to smelt iron the temperature in each stage, the advantages of using direct reduction in rotary kiln.
Description
Technical field
The utility model is related to a kind of blast furnace dedusting ash ironmaking rotary kiln, the comprehensive utilization for belonging to metallurgical solid waste is set
Standby technical field, is particularly suitable for blast furnace dedusting ash direct ironmaking.
Background technology
There are valuable elements such as iron, zinc, carbon in blast furnace dedusting ash, wherein, iron, zinc exist in the form of an oxide, and carbon is main
For coke blacking, recycled to improve energy utilization rate, it is necessary to which iron, zinc are reduced.Chinese invention patent CN106834576A, it is open
A kind of clinker iron-smelting process extracted with rotary kiln after zinc oxide, for iron recycling using indirect mode, i.e. first use
Rotary kiln extracts zinc oxide, hereafter, then by clinker feeding electric arc furnaces, is reduced iron using electric arc furnaces.But it is asked there are following
Topic, first, need to be recycled using two equipment of rotary kiln and electric arc furnaces, one to increase cost recovery, and two need to two
A equipment is respectively controlled, and adds the maintenance difficulties of later stage operation；Second is that for iron recycling using indirect mode,
The zinc extraction process and reaction temperature for needing dependence preamble are difficult to control, and iron recovering effect is very unstable.
The content of the invention
To solve above technical deficiency, the utility model provides a kind of blast furnace dedusting ash ironmaking rotary kiln,
Combustion chamber and segmented auxiliary regulating cavity are provided on rotary kiln, blast furnace dedusting ash can accurately be controlled to smelt iron the temperature in each stage
Degree, using direct reduction in rotary kiln.
The technical solution of the utility model is as follows：A kind of blast furnace dedusting ash ironmaking rotary kiln, including the kiln being obliquely installed
Body, the high-end of the kiln body are provided with blast furnace ash import and reducing agent import, and the low side of kiln body is provided with slag-drip opening, the outlet of liquid iron
And gas vent；
Combustion chamber is provided in kiln body, the high-end of combustion chamber is provided with combustion chamber outlet, and the low side of combustion chamber is provided with combustion
Burn chamber import and air intlet；
Kiln body is provided outside segmented auxiliary regulating cavity, the segmented auxiliary regulating cavity include from it is high-end to low side successively
Preheating section auxiliary regulating cavity, reduction section auxiliary regulating cavity, granulated iron section auxiliary regulating cavity and the fusing section auxiliary regulating cavity of setting；
The segmented auxiliary regulating cavity is both provided with inlet and outlet and temperature sensor, is adjusted in combustion chamber with segmented auxiliary
Section chamber correspondence position is respectively arranged with temperature sensor, and the temperature sensor and inlet and outlet are electrically connected with control device.
The technical solution of the utility model further includes：Preheating section inlet and outlet are provided on the preheating section auxiliary regulating cavity,
Reduction section inlet and outlet are provided on reduction section auxiliary regulating cavity, granulated iron section inlet and outlet are provided on granulated iron section auxiliary regulating cavity, are melted
Change and fusing section inlet and outlet are provided on section auxiliary regulating cavity, the preheating section inlet and outlet, reduction section inlet and outlet, granulated iron section inlet and outlet
It is electrically connected respectively with the output terminal of control device with fusing section inlet and outlet.
The technical solution of the utility model further includes：The temperature sensor is electrically connected with the input terminal of control device.
The technical solution of the utility model further includes：The high-end and low side of the kiln body is respectively arranged with sealing device, kiln
Body low side is equipped with close to sealing device position and lays bricks, and described one end laid bricks is provided with dovetail groove, and the other end laid bricks is set
There is the dovetail convex block to match with dovetail groove.
The technical solution of the utility model further includes：The outside of the kiln body is provided with transmission device and at least two
Seat.
The beneficial effects of the utility model are：Combustion chamber is set in kiln body, by being arranged on combustion chamber lower position
Agent burns release heat is added in combustion chamber import into combustion chamber, which reduces for blast furnace dedusting ash and reducing agent
It reacts to reduce iron；Also, in order to make full use of heat, according to the differential responses rank of dedusting ash each position in kiln body
Combustion chamber import is arranged on the low side of combustion chamber, so that the heat of high temperature is corresponding with the fusing section of high temperature demands by section；This
Outside, accurately controlled in order to the temperature to each stage of reaction, segmented auxiliary regulating cavity is provided with outside kiln body, each
Temperature sensor and inlet and outlet are mounted on segmented auxiliary regulating cavity, at the same it is corresponding with segmented auxiliary regulating cavity in combustion chamber
There are also installed temperature sensor, the temperature value of detection is sent in control device by temperature sensor to be compared with setting value for position
Compared with, when detection temperature is more than or during less than design temperature scope, control device, which sends actuating signal and will import and export, to be opened, with into
The heat transfer medium of outlet connection, which enters in segmented auxiliary regulating cavity, to be cooled down or is heated up, and is believed until temperature sensor detects
When number meeting design temperature scope, control device control inlet and outlet are closed.The utility model can utilize direct reduction in rotary kiln, and
The reaction temperature in each stage is accurately controlled in ironmaking processes, there is preferable blast furnace dedusting gray iron recovering effect.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model.
Fig. 2 is the utility model brick construction schematic diagram.
Fig. 3 is scheme of installation of laying bricks.
1st, kiln body, 2, sealing device, 3, preheating section auxiliary regulating cavity, 31, preheating section inlet and outlet, 4, reduction section auxiliary adjustment
Chamber, 41, reduction section inlet and outlet, 5, granulated iron section auxiliary regulating cavity, 51, granulated iron section inlet and outlet, 6, fusing section auxiliary regulating cavity, 61,
Melt section inlet and outlet, 7, combustion chamber, 8, control device, 9, transmission device, 10, bearing, 11, blast furnace ash import, 12, slag-drip opening,
13rd, liquid iron exports, and 14, gas vent, 15, combustion chamber outlet, 16, combustion chamber import, 17, temperature sensor, 18, lay bricks,
181st, dovetail groove, 182, dovetail convex block, 19, air intlet.
Specific embodiment
Below in conjunction with attached drawing, by embodiment, the utility model is described in further detail.
As shown in Figure 1, a kind of blast furnace dedusting ash ironmaking rotary kiln of the utility model, including the kiln body 1 being obliquely installed,
The outside of kiln body 1 is equipped with transmission device 9, and to drive rotary kiln slow rotation, the outside of kiln body 1, which is also spaced, is equipped with bearing
10, to provide support.
The high-end of kiln body 1 is provided with blast furnace ash import 11, and the low side of kiln body 1 is provided with slag-drip opening 12,13 and of liquid iron outlet
Gas vent 14；Combustion chamber 7 is provided in kiln body 1, combustion chamber 7 it is high-end be provided with combustion chamber outlet 15, combustion chamber 7 it is low
End is provided with combustion chamber import 16 and air intlet 19；Kiln body 1 is provided outside segmented auxiliary regulating cavity, and segmented auxiliary is adjusted
Saving chamber is included from high-end to low side preheating section auxiliary regulating cavity 3 successively, reduction section auxiliary regulating cavity 4, granulated iron section auxiliary adjustment
Chamber 5 and fusing section auxiliary regulating cavity 6；The inlet and outlet and temperature being connected with control device 8 are both provided in segmented auxiliary regulating cavity
Sensor 17 is spent, combustion chamber 7 is interior to be respectively arranged with the temperature being connected with control device 8 with segmented auxiliary regulating cavity correspondence position
Sensor 17.
During work, combustion medium spontaneous combustion chamber import 16 adds in, air adds in from air intlet 19 and provides burning requisite oxygen
Gas, combustion medium exothermic heat of reaction in combustion chamber 7, substance after burning are expelled to from combustion chamber outlet 15 from specified containers carry out
Reason avoids causing secondary pollution.Blast furnace dedusting ash from blast furnace ash import 11 add in kiln body 1 in, and under the heat of combustion chamber 7 into
Coke in row reduction reaction, wherein blast furnace ash is used as reducing agent, and when coke content is few, coke can be filled in blast furnace ash,
Material is slowly advanced forward with the rotation of kiln body 1 with angle of inclination, the low side until reaching kiln body, and liquid iron after reduction is from liquid
13 discharge of iron outlet, the solid slag after reaction are discharged from slag-drip opening 12, and the gas for reacting generation is expelled to finger from gas vent 14
Constant volume device avoids causing secondary pollution.
In the process, the temperature sensor 17 in combustion chamber 7 and segmented auxiliary regulating cavity in real time will detection
As a result control device 8 is delivered to, control device 8 opens or closes the disengaging of different auxiliary regulating cavities according to result after the comparison
Mouthful, and high temperature or cold heat transfer media is into or out by importing and exporting, until temperature reaches stage of reaction requirement.Specifically
Ground, the reaction temperature setting value in each stage can be preheating section at 800 DEG C or so in control device 8, reduction section at 1000 DEG C or so,
Granulated iron section is at 1200 DEG C or so, and liquid iron section is at 1400 DEG C or so.
In the utility model, sealing device 2 is separately installed at the both ends of kiln body 1, since low side is in fusing Duan Qiwen
Degree is higher, 18 is designed to tie as shown in Figures 2 and 3 in order to avoid due to loss of connectivity issue of laying bricks caused by high temperature, will lay bricks
Structure, i.e. laying bricks, 18 both ends separately design dovetail groove 181 and dovetail convex block 182, and plug connection is carried out using dovetail configuration,
It can ensure that connection is reliable.
The above, is only the preferred embodiment of the utility model, and limit in any form is not done to the utility model
System, done all any modification, equivalent and improvement etc., should be included in this reality within the spirit and principle of the utility model
Within new protection domain.
Claims (5)
1. a kind of blast furnace dedusting ash ironmaking rotary kiln, including the kiln body being obliquely installed（1）, it is characterised in that：The kiln body（1）
High-end be provided with blast furnace ash import（11）, kiln body（1）Low side be provided with slag-drip opening（12）, liquid iron outlet（13）Go out with gas
Mouthful（14）；
Kiln body（1）Inside it is provided with combustion chamber（7）, combustion chamber（7）It is high-end be provided with combustion chamber outlet（15）, combustion chamber（7）'s
Low side is provided with combustion chamber import（16）And air intlet（19）；
Kiln body（1）Be provided outside segmented auxiliary regulating cavity, the segmented auxiliary regulating cavity include from it is high-end to low side successively
The preheating section auxiliary regulating cavity of setting（3）, reduction section auxiliary regulating cavity（4）, granulated iron section auxiliary regulating cavity（5）With fusing section auxiliary
Adjusting cavity（6）；
The segmented auxiliary regulating cavity is both provided with inlet and outlet and temperature sensor（17）, combustion chamber（7）It is interior auxiliary with segmented
Adjusting cavity correspondence position is helped to be respectively arranged with temperature sensor（17）, the temperature sensor（17）It is filled with inlet and outlet with control
It puts（8）Electrical connection.
2. a kind of blast furnace dedusting ash ironmaking rotary kiln as described in claim 1, it is characterised in that：The preheating section auxiliary is adjusted
Save chamber（3）On be provided with preheating section inlet and outlet（31）, reduction section auxiliary regulating cavity（4）On be provided with reduction section inlet and outlet（41）,
Granulated iron section auxiliary regulating cavity（5）On be provided with granulated iron section inlet and outlet（51）, melt section auxiliary regulating cavity（6）On be provided with fusing section
Inlet and outlet（61）, the preheating section inlet and outlet（31）, reduction section inlet and outlet（41）, granulated iron section inlet and outlet（51）With fusing section disengaging
Mouthful（61）Respectively with control device（8）Output terminal electrical connection.
3. a kind of blast furnace dedusting ash ironmaking rotary kiln as claimed in claim 2, it is characterised in that：The temperature sensor
（17）With control device（8）Input terminal electrical connection.
4. a kind of blast furnace dedusting ash ironmaking rotary kiln as described in claims 1 to 3 is any, it is characterised in that：The kiln body
（1）High-end and low side be respectively arranged with sealing device（2）, kiln body（1）Low side is close to sealing device（2）Position, which is equipped with, lays bricks
（18）, it is described to lay bricks（18）One end be provided with dovetail groove（181）, lay bricks（18）The other end be provided with and dovetail groove（181）
The dovetail convex block to match（182）.
5. a kind of blast furnace dedusting ash ironmaking rotary kiln as claimed in claim 4, it is characterised in that：The kiln body（1）It is outer
Portion is provided with transmission device（9）With at least two bearings（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260705.2U CN207405194U (en) | 2017-09-28 | 2017-09-28 | A kind of blast furnace dedusting ash ironmaking rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260705.2U CN207405194U (en) | 2017-09-28 | 2017-09-28 | A kind of blast furnace dedusting ash ironmaking rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207405194U true CN207405194U (en) | 2018-05-25 |
Family
ID=62406921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721260705.2U Active CN207405194U (en) | 2017-09-28 | 2017-09-28 | A kind of blast furnace dedusting ash ironmaking rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207405194U (en) |
-
2017
- 2017-09-28 CN CN201721260705.2U patent/CN207405194U/en active Active
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