CN203782198U - Iron ore magnetizing and roasting furnace - Google Patents
Iron ore magnetizing and roasting furnace Download PDFInfo
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- CN203782198U CN203782198U CN201320803055.7U CN201320803055U CN203782198U CN 203782198 U CN203782198 U CN 203782198U CN 201320803055 U CN201320803055 U CN 201320803055U CN 203782198 U CN203782198 U CN 203782198U
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- furnace
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- iron ore
- magnetization
- furnace wall
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Abstract
The utility model relates to an iron ore magnetizing and roasting furnace. The magnetizing and roasting furnace comprises a furnace body, a hearth and a furnace body lining fireproof layer, wherein the furnace body comprises a feeding opening at the top, a furnace wall and a furnace body bottom; the magnetizing and roasting furnace also comprises a magnetizing device which is arranged at the bottom of the furnace body; a discharging opening is formed in the furnace wall; a slope is also formed in the bottom of the furnace body. The magnetizing and roasting furnace is simple in structure and capable of directly roasting and magnetizing raw ore; meanwhile, the magnetizing and roasting furnace is also capable of appropriately roasting the iron ore, fully and uniformly magnetizing the iron ore and effectively improving the quality of the iron ore.
Description
Technical field
The utility model relates to a kind of industrial furnace, particularly a kind of iron ore magnetization roasting furnace.
Background technology
China is existing a large amount of iron ore of low ore grade resources, and the iron grade of these iron ores is between 20%-50%.To iron ore of low ore grade, conventionally adopting physical chemistry beneficiation method to carry out enrichment recycling, there is the problems such as the rate of recovery is low, cost recovery is high in these beneficiation methods, thereby the utilization ratio of current iron ore of low ore grade is very low.
Magnetizing roasting is to process one of effective ways of iron ore of low ore grade, its be at heated condition by the devolatilization in iron ore, and high price iron is reduced into the process of iron at a low price.Traditional magnetizing roasting process adopts shaft kiln or rotary kiln conventionally, and frit, bonding easily appear in its production process, energy consumption is large, susceptibility is low, magnetize the technical matters such as inhomogeneous.
In order to improve roasting and magnetization effect, some magnetization stoving ovens have been there are at present.For example, CN101392989 discloses a kind of suspending magnetization roasting furnace, and this magnetization roasting furnace comprises body of heater and cyclonic separator, and the top of body of heater is provided with discharge port and is fixedly connected with the opening for feed of cyclonic separator; On cyclonic separator top cover, be fixed with vapor pipe, the lower end of the cone table of cyclonic separator is fixedly connected with drainage conduit, body of heater lower end is vertically provided with cone table and vertical conduit, and be fixedly connected with in aggregatesly, on furnace wall, cone bottom, be respectively equipped with the heat supply mouth of opening for feed, aid burning and for the heat supply entrance of thermal bake-out device.This magnetization roasting furnace is, by roasting device, ore is carried out to roasting, cause ore roasting not or local excessive roasting, and magnetized degree is not thorough yet.CN101775486 discloses a kind of enclosed magnetic reduction furnace, and it comprises hopper, feed valve, magnetizing roasting chamber, burning chamber, bleeder valve, furnace base, and feed valve is located between hopper and magnetizing roasting chamber; Burning chamber is positioned at both sides, magnetizing roasting chamber; Bleeder valve is positioned at bottom, magnetizing roasting chamber.The magnetizing roasting chamber of this magnetic reduction furnace is sealed, and this structure preparation technology is loaded down with trivial details, and the magnetization effect of ore is unsatisfactory.Meanwhile, existing magnetizing roasting furnace volume is little, and throughput is limited, can not meet the needs of large-scale industrial production.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of iron ore magnetization roasting furnace, and this magnetization roasting furnace is simple in structure, easy to operate, can be by raw ore appropriateness roasting and full and uniform magnetization.
The concrete technical scheme of the utility model is as follows:
The utility model provides a kind of iron ore magnetization roasting furnace, the body of heater of this magnetization roasting furnace comprises furnace wall and furnace bottom, the cavity being surrounded by furnace wall is burner hearth, liner flame retardant coating is fixed on the inwall of described furnace wall, wherein, body of heater comprises the opening for feed being surrounded by edge, top, furnace wall and is positioned at the basifacial discharge port of furnace wall side; Body of heater also comprises the magnetization body of wall being fixedly connected with furnace wall, in magnetization body of wall, buries and is cast with magnetizing assembly.
Further improve, magnetizing assembly comprises electro-magnet or permanent magnet.
The operational process of this magnetization roasting furnace is: first by raw ore and fuel mix, in opening for feed joins burner hearth; Then pilot fuel, fuel carries out roasting to raw ore, and magnetizing assembly magnetizes raw ore simultaneously; Finally obtain appropriate roasting and abundant magnetized ore.
For the convenience operating, magnetization body of wall is the slope that is arranged on the junction of furnace wall that discharge port is relative and furnace bottom.The cross section on slope can present trilateral or trapezoidal, and certainly, other shapes of the simple deformation that those skilled in the art can easily expect, all within this novel protection domain.
Specifically, when the cross section on slope is triangular in shape, slope comprises and produces inclined-plane, the first vertical surface, the bottom surface of horizontal component and the side of extending to two ends, and the first vertical surface, side are fixedly connected with furnace wall, and bottom surface is fixedly connected with furnace bottom.
When the cross section on slope is trapezoidal, slope comprises and produces the inclined-plane, the first vertical surface, bottom surface of horizontal component and side, the second vertical surface extending to two ends, and the first vertical surface, side are fixedly connected with furnace wall, and bottom surface is fixedly connected with furnace bottom.
Preferred inclined-plane comprises curved surface or faces directly.
The 1/6-1/2 that preferred ramp height is furnace wall.
This magnetization roasting furnace can be built into different shapes or size according to the feature in place and need of production, can also in parallelly build, and can realize so large-scale iron ore magnetizing roasting.When this magnetization roasting furnace size is larger, can be set to two or more by discharge port, between discharge port, partition can be set.
For Real-Time Monitoring and control magnetizing roasting process and maturing temperature, body of heater is also fixedly connected with observing and controlling chamber, this observing and controlling chamber comprises observing and controlling chamber main body, entrance, temperature probe and spy hole, observing and controlling chamber main body embeds in body of heater, the breach of the entrance of observing and controlling chamber for forming on furnace wall, temperature probe and spy hole are arranged in the main body of observing and controlling chamber.
Preferably, observing and controlling chamber main body is surrounded by sloping core body, vertical body of wall, corridor, extends in corridor outside body of heater.
For fear of the waste gas producing in magnetizing roasting process, directly discharge, this magnetization roasting furnace is also provided with flue gas recovery device at top.
The beneficial effects of the utility model: the iron ore magnetization roasting furnace that the utility model provides is simple in structure, easy to operate, can directly carry out roasting magnetization to raw ore, by ore appropriateness roasting and full and uniform magnetization; Slope in magnetization roasting furnace contributes to, by action of gravity, the ore after roasting magnetization is extruded into discharge port; And this magnetization roasting furnace is provided with observing and controlling chamber, it can monitor roasting and the magnetization situation of stoving oven; The flue gas recovery device at magnetization roasting furnace top can carry out collection and treatment, protection of the environment to obnoxious flavour.
Accompanying drawing explanation
Fig. 1. the structural representation of iron ore magnetization roasting furnace of the present utility model;
Fig. 2. the A-A of Fig. 1 is to sectional view;
Fig. 3. the structural representation of iron ore magnetization roasting furnace of the present utility model;
Fig. 4. the B-B of Fig. 3 is to sectional view;
Fig. 5. the C-C of Fig. 3 is to sectional view;
Fig. 6. the structural representation of iron ore magnetization roasting furnace of the present utility model;
Fig. 7. the D-D of Fig. 6 is to sectional view;
Fig. 8. the structural representation of iron ore magnetization roasting furnace of the present utility model;
1-body of heater, 2-burner hearth, 3-liner flame retardant coating, 4-magnetizing assembly, 5-observing and controlling chamber, 6-temperature probe, 7-flue gas recovery device, 8-magnetizes body of wall, 9-the first vertical surface, 11-opening for feed, 12-furnace wall, 13-furnace bottom, 14-discharge port, 15-slope, 16-inclined-plane, 17-the second vertical surface, 18-bottom surface, 20-cuts off, 21-entrance, 22-sloping core body, the vertical body of wall of 23-, 24-corridor, 25-spy hole.
Embodiment
Embodiment 1
The utility model provides a kind of iron ore magnetization roasting furnace, as shown in Figure 1, the body of heater 1 of this magnetization roasting furnace comprises that furnace wall 12, furnace bottom 13, the slope 15(being fixedly connected with furnace wall 12 magnetize body of wall 8), the cavity being surrounded by furnace wall 12 is burner hearth 2, liner flame retardant coating 3 is fixed on the inwall of described furnace wall 12, and body of heater 1 comprises the opening for feed 11 being surrounded by 12 edges, top, furnace wall and is positioned at the basifacial discharge port 14 of furnace wall 12 side; In slope 15, bury and be cast with 3 magnetizing assemblys 4.
Shown in Fig. 2, slope 15 is arranged on furnace wall 12 that discharge port 14 is relative and the junction of furnace bottom 13, the cross section on this slope 15 is triangular in shape, comprise and produce inclined-plane 16, the first vertical surface 9, the bottom surface 18 of horizontal component and the side of extending to two ends, described the first vertical surface 9, side are fixedly connected with furnace wall 12, bottom surface 18 is fixedly connected with furnace bottom 13, and inclined-plane 16 is curved surface, and the height on this slope 15 is 1/2 of furnace wall 12.
Embodiment 2
The utility model provides a kind of iron ore magnetization roasting furnace, as shown in Fig. 3, Fig. 4 and Fig. 5; As different from Example 1, the cross section journey on the slope 15 of this magnetization roasting furnace is trapezoidal, and its front side also comprises the second vertical surface 17, and inclined-plane 16 is for facing directly; The height on this slope 15 is 1/3 of furnace wall 12; Discharge port 14 is two, and between discharge port 14, is provided with the partition 20 being fixedly connected with furnace wall 12; When the burner hearth 2 of magnetization roasting furnace is larger, increase the quantity of discharge port 14, and arrange betwixt and cut off 20, can make ore magnetization more full and uniform; Magnetizing assembly 4 is buried to casting in slope 15, and specifically limited 15 positions, slope, also can further improve magnetization effect, make the full and uniform magnetization of ore.
Embodiment 3
The utility model provides a kind of iron ore magnetization roasting furnace, as shown in Figure 6 and Figure 7; Different from embodiment 2, this magnetizing roasting furnace body 1 is also fixedly connected with observing and controlling chamber 5, observing and controlling chamber 5 comprises observing and controlling chamber main body, entrance 21, temperature probe 6 and spy hole 25, observing and controlling chamber main body embeds in body of heater 1, the entrance 21 of observing and controlling chamber 5 is the breach of furnace wall 12, this observing and controlling chamber main body is surrounded by sloping core body 22, vertical body of wall 23, corridor 24, corridor 24 is to the outer extension of body of heater 1, temperature that can Real-Time Monitoring roasting and observe the roasting situation in burner hearth 2, further guarantee that fuel in magnetization roasting furnace can sustained combustion, thereby can make the roasting of ore appropriateness.
Embodiment 4
As shown in Figure 8, the utility model is also provided with flue gas recovery device 7 at the top of iron ore magnetization roasting furnace, and this flue gas recovery device 7 can be processed the obnoxious flavour that magnetization roasting furnace is discharged, thus protection of the environment.
The above embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of claims of the present utility model.
Claims (7)
1. an iron ore magnetization roasting furnace, the body of heater of described magnetization roasting furnace (1) comprises furnace wall (12) and furnace bottom (13), and the cavity being surrounded by described furnace wall (12) is burner hearth (2), and liner flame retardant coating (3) is fixed on the inwall of described furnace wall (12), it is characterized in that
Described body of heater (1) comprises the opening for feed (11) being surrounded by edge, furnace wall (12) top and is positioned at the basifacial discharge port of furnace wall (12) side (14);
Described body of heater (1) also comprises the magnetization body of wall (8) being fixedly connected with described furnace wall (12), buries and be cast with magnetizing assembly (4) in described magnetization body of wall (8);
Described magnetization body of wall (8) is for being arranged on the slope (15) of the junction of described furnace wall (12) that described discharge port (14) is relative and furnace bottom (13);
Described discharge port (14) is at least two, is provided with the partition (20) being fixedly connected with described furnace wall (12) between described discharge port (14);
Described body of heater (1) is also fixedly connected with observing and controlling chamber (5), described observing and controlling chamber (5) comprises observing and controlling chamber main body, entrance (21), temperature probe (6) and spy hole (25), described observing and controlling chamber main body embeds in described body of heater (1), the entrance (21) of described observing and controlling chamber (5) is that described temperature probe (6), spy hole (25) are arranged in the main body of described observing and controlling chamber at described furnace wall (12) the upper breach forming.
2. iron ore magnetization roasting furnace as claimed in claim 1, it is characterized in that, the cross section on described slope (15) is triangular in shape, comprise and produce inclined-plane (16), the first vertical surface (9), bottom surface (18) of horizontal component and the side of extending to two ends, described the first vertical surface (9), side are fixedly connected with furnace wall (12), and described bottom surface (18) are fixedly connected with furnace bottom (13).
3. iron ore magnetization roasting furnace as claimed in claim 1, it is characterized in that, the cross section on described slope (15) is trapezoidal, comprise and produce inclined-plane (16), the first vertical surface (9), bottom surface (18) of horizontal component and side, the second vertical surface (17) extending to two ends, described the first vertical surface (9), side are fixedly connected with furnace wall (12), and described bottom surface (18) are fixedly connected with furnace bottom (13).
4. iron ore magnetization roasting furnace as claimed in claim 2 or claim 3, is characterized in that, described inclined-plane (16) comprise curved surface or face directly.
5. iron ore magnetization roasting furnace as claimed in claim 2, is characterized in that, the height of described slope (15) is the 1/6-1/2 of furnace wall (12).
6. iron ore magnetization roasting furnace as claimed in claim 1, is characterized in that, described magnetizing assembly (4) comprises electro-magnet or permanent magnet.
7. iron ore magnetization roasting furnace as claimed in claim 1, is characterized in that, described observing and controlling chamber main body is surrounded by sloping core body (22), vertical body of wall (23), corridor (24), and extend outside body of heater (1) described corridor (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803055.7U CN203782198U (en) | 2013-12-09 | 2013-12-09 | Iron ore magnetizing and roasting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803055.7U CN203782198U (en) | 2013-12-09 | 2013-12-09 | Iron ore magnetizing and roasting furnace |
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| Publication Number | Publication Date |
|---|---|
| CN203782198U true CN203782198U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320803055.7U Expired - Fee Related CN203782198U (en) | 2013-12-09 | 2013-12-09 | Iron ore magnetizing and roasting furnace |
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| CN (1) | CN203782198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076080A1 (en) * | 2015-11-02 | 2017-05-11 | 深圳金美威电子有限公司 | Reduction roasting method for iron ore |
-
2013
- 2013-12-09 CN CN201320803055.7U patent/CN203782198U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076080A1 (en) * | 2015-11-02 | 2017-05-11 | 深圳金美威电子有限公司 | Reduction roasting method for iron ore |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20141209 |
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| EXPY | Termination of patent right or utility model |