CN202380056U - Horizontal movement-fixed-bed magnetization reductive roasting device - Google Patents
Horizontal movement-fixed-bed magnetization reductive roasting device Download PDFInfo
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- CN202380056U CN202380056U CN2011202530095U CN201120253009U CN202380056U CN 202380056 U CN202380056 U CN 202380056U CN 2011202530095 U CN2011202530095 U CN 2011202530095U CN 201120253009 U CN201120253009 U CN 201120253009U CN 202380056 U CN202380056 U CN 202380056U
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Abstract
The utility model relates to a horizontal movement-fixed-bed magnetization reductive roasting device, which comprises a feeding system, a fixed bed with horizontal movement, a kiln body composed of a blast drying chamber, a draft drying chamber, a heating chamber and a reduction chamber, a combustion chamber, an automatic control system, a draft and hot air recycling system and an anti-oxidation ore discharging system. The feeding system is positioned above the front end of the fixed bed with horizontal movement; a scraper conveyor is connected at the tail end of the fixed bed with horizontal movement; each chamber of the kiln body is connected with the fixed bed with horizontal movement, and the top of the kiln body is connected with the combustion chamber, the bottom of the kiln body is connected with the draft and hot air recycling system, and the tail of the kiln body is connected with the anti-oxidation ore discharging system; and the automatic control system is connected with the feeding system, the kiln body and the anti-oxidation ore discharging system respectively. The horizontal movement-fixed-bed magnetization reductive roasting device effectively utilizes waste heat inside the heating chamber and the reduction chamber, realizes the reduction process of iron ore and ore powder, and therefore not only is the fuel consumption for roasting ore reduced, but also the cost for mineral processing is decreased.
Description
Technical field
The utility model relates to the iron ore roasting technology, relates in particular to move horizontally-fixed-bed type magnetization reduction calciner.
Background technology
Along with the fast development of iron and steel enterprise, the contradiction of inadequate resource is on the rise, and in order to reduce production costs, domestic enterprise has to develop refractory ore.Production practice and a large amount of scientific payoffss prove, calcining magnetic separation is to handle the difficult effective way of selecting ferric oxide ore.At present; The iron ore magnetization reduction roasting apparatus of using in the industrial production mainly contains: shaft furnace, rotary kiln, fluidizing furnace, tunnel etc.; Though can reach the purpose of magnetizing roasting to a certain extent; But exist ore grain size suitable, be prone to problems such as sticking kiln, roasting efficient are low, can only be like the roasting of Anshan type shaft furnace process magnetization reduction to lump ore as main raw material, its desired raw material granularity is at 15～75mm; Fine ores (less than 15mm) a large amount of when like this, broken is then poor because of ventilation property, furnace caking, reduction effect difference can't adopt the shaft furnace magnetizing roasting.The magnetization reduction roasting industrial production of fine ore adopts rotary kiln technology to carry out at present; Domestic only have several families to use; Rotary kiln is the horizontal round shape roasting apparatus of a kind of hollow; Because the sealing difficulty of rotary kiln head, tail is big and kiln in phenomenons such as the high-temperature zone ring formation is serious, cause that rotary kiln productivity is low, roasting efficient is low, restricted further developing of rotary kiln magnetization reduction roasting technology.Fluidizing furnace is that a kind of transverse section is circular shaft furnace, but the roasting fine ore, but have problems such as ore deposit stream has some setbacks, production efficiency is low, wayward equally.This shows also there is not a kind of magnetizing roasting equipment that can stablize, efficiently handle fine ore at present.
The utility model content
The utility model technical problem to be solved provide a kind of efficiently, move horizontally cheaply-fixed-bed type magnetization reduction calciner.
For addressing the above problem; The utility model is described to move horizontally-fixed-bed type magnetization reduction calciner, and it is characterized in that: kiln body, combustion chamber, automatic control system, exhausting and the hot air circulation that this device comprises feeding system, the fixed bed that moves horizontally, be made up of blower kiln, exhausting kiln, heating chamber and reduction chamber utilized system and anti-oxidation ore discharge system; Said feeding system is positioned at the front end top of the said fixed bed that moves horizontally; The end of the said fixed bed that moves horizontally is connected with the scraper plate machine; Each chamber of said kiln body links to each other with the said fixed bed that moves horizontally, and its top links to each other with said combustion chamber, and its bottom utilizes system to link to each other with said exhausting and hot air circulation, and its afterbody links to each other with said anti-oxidation ore discharge system; Said automatic control system links to each other with anti-oxidation ore discharge system with said feeding system, kiln body respectively.
Said feeding system is made up of the material distributing machine that ore storage bin I, ore storage bin II and bottom thereof link to each other; Said material distributing machine is positioned at the front end top of the said fixed bed that moves horizontally; Said material distributing machine is provided with flow quantity control instrument, and this flow quantity control instrument links to each other with said automatic control system.
The length of the said fixed bed that moves horizontally is 60～150m, and is made up of the grillflooring of even setting.
The top of said blower kiln utilizes system to communicate with said exhausting and hot air circulation, and its bottom communicates through valve I with the bottom of said heating chamber and the top of said exhausting kiln; The bottom of said exhausting kiln utilizes system to communicate with said exhausting and hot air circulation; Said heating chamber top communicates with said heating system; The top of said reduction chamber is provided with the reducing gas pipeline, and its bottom links to each other with top one side of said heating chamber; The indoor temperature probe that is equipped with of said heating chamber and said reduction, this temperature probe links to each other with automatic control system.
One side of said combustion chamber is respectively equipped with gas line, air line, its bottom with said heating chamber in the mineral aggregate layer communicate.
Said exhausting and hot air circulation utilize system to comprise chimney, and bottom one side of this chimney communicates through valve II with the bottom of said exhausting kiln, and its top one side communicates through valve III with the top of said blower kiln.
The bottom of said blower kiln communicates through valve IV with the bottom of said heating chamber.
Said anti-oxidation ore discharge system is meant water cooling plant or dry and cold device; Said water cooling plant or dry and cold device are provided with controller, and this controller links to each other with said automatic control system.
Said water cooling plant is the pond of interior water-filling, and an end top in this pond links to each other with the terminal bottom of said fixed bed; Be connected with the machine of taking out of in the said pond.
Said dry and cold device is the ore storage bin of interior inflated with nitrogen, and an end of this ore storage bin links to each other with the bottom of said scraper plate machine.
The utility model compared with prior art has the following advantages:
1, effectively utilize the waste heat of heating chamber and reduction chamber, reduce the fuel consumption of roasted ore:
Kiln body in the utility model is divided into four Room, i.e. blower kiln, exhausting kiln, heating chamber and reduction chamber.The thermal source of blower kiln and exhausting kiln all comes from the hot waste gas of heating chamber, and its effect mainly is to utilize the waste heat of heating chamber that ore is carried out preheating, reaches the heat-up time of shortening heating chamber and the purpose of energy-saving and emission-reduction; The thermal source of heating chamber mainly comes from the heat that the burning of outside coke-oven gas or mixed gas is produced, and its effect mainly is that ore is heated to the needed reduction temperature of magnetization reduction roasting; The reductive agent that adopt the reduction chamber is coal gas or solid fuel, and its effect mainly is to control the needed best reducing atmosphere of fine ore magnetization reduction through the size of regulating reduction dosage; The hot waste gas of reduction chamber is forced and is incorporated into heating chamber, is used as secondhand energy.
2, owing to after the ore magnetizing roasting, at high temperature enter and be easy to the oxidized preceding state of roasting of getting back in the air, magnetizing roasting was lost efficacy; Therefore; For preventing the ore oxidation again after the roasting, the utility model is provided with anti-oxidation ore discharge system---water cooling plant and air-cooling apparatus at kiln body tail (mine-discharging terminal), and the former directly enters roasted ore in the water; Fast the cooling back is with the discharge of equipment such as the machine of taking out of, and the latter feeds nitrogen and discharges below ore is cooled to needed temperature in sealed vessel.。
3, can realize the magnetization reduction process of iron ore, breeze through the utility model, the iron in ore mineral become be easy to the ore dressing separation, reduce beneficiation cost.
4, owing to be provided with automatic control system in the utility model, therefore, the controlled variable of roasting process is easy to realize PLC control.
5, owing to maturing temperature in the utility model relatively low (except that heating chamber, equal＜850 ℃), therefore, not high to the requirements of type selecting of equipment material.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Among the figure: the fixed bed 10-ore storage bin I 11-ore storage bin II 12-chimney 13-that the 1-material distributing machine 2-3-of blower kiln exhausting kiln 4-heating chamber 5-reduction chamber 6-gas line 7-air line 8-combustion chamber 9-moves horizontally takes out of machine 14-scraper plate machine 15-reducing gas pipeline.
Embodiment
As shown in Figure 1; Move horizontally-fixed-bed type magnetization reduction calciner, the fixed bed 9 that this device comprises feeding system, move horizontally, kiln body, combustion chamber 8, automatic control system, exhausting and the hot air circulation be made up of blower kiln 2, exhausting kiln 3, heating chamber 4 and reduction chamber 5 are utilized system and anti-oxidation ore discharge system.Feeding system is positioned at the front end top of the fixed bed 9 that moves horizontally; The end of the fixed bed 9 that moves horizontally is connected with scraper plate machine 14; Each chamber of kiln body links to each other with the fixed bed that moves horizontally 9, and its top links to each other with combustion chamber 8, and its bottom utilizes system to link to each other with exhausting and hot air circulation, and its afterbody links to each other with anti-oxidation ore discharge system; Automatic control system links to each other with anti-oxidation ore discharge system with feeding system, kiln body respectively.
Wherein:
Feeding system is made up of the material distributing machine 1 that ore storage bin I 10, ore storage bin II 11 and bottom thereof link to each other; Material distributing machine 1 is positioned at the front end top of the fixed bed 9 that moves horizontally; Material distributing machine 1 is provided with flow quantity control instrument, and this flow quantity control instrument links to each other with automatic control system.
The length of the fixed bed 9 that moves horizontally is 60～150m, and is made up of the grillflooring of even setting.
The top of blower kiln 2 utilizes system to communicate with exhausting and hot air circulation, and its bottom communicates through valve I with the bottom of heating chamber 4 and the top of exhausting kiln 3; The bottom of exhausting kiln 3 utilizes system to communicate with exhausting and hot air circulation; Heating chamber 4 tops communicate with heating system; The top of reduction chamber 5 is provided with reducing gas pipeline 15, and its bottom links to each other with top one side of heating chamber 4.The bottom of blower kiln 2 communicates through valve IV with the bottom of heating chamber 4; Be equipped with temperature probe in heating chamber 4 and the reduction chamber 5, this temperature probe links to each other with automatic control system.
One side of combustion chamber 8 is respectively equipped with gas line 6, air line 7, its bottom with heating chamber 4 in the mineral aggregate layer communicate.
Exhausting and hot air circulation utilize system to comprise chimney 12, and bottom one side of this chimney communicates through valve II with the bottom of exhausting kiln 3, and its top one side communicates through valve III with the top of blower kiln 2.
Anti-oxidation ore discharge system is meant water cooling plant or dry and cold device; Water cooling plant or dry and cold device are provided with controller, and this controller links to each other with automatic control system.Water cooling plant is the pond of interior water-filling, and an end top in this pond links to each other with fixed bed 9 terminal bottoms, is connected with the machine of taking out of 13 in the pond; Dry and cold device is the airtight relatively ore storage bin of interior inflated with nitrogen, and an end of this ore storage bin links to each other with the bottom of scraper plate machine 14.
Claims (10)
1. move horizontally-fixed-bed type magnetization reduction calciner, it is characterized in that: the fixed bed (9) that this device comprises feeding system, move horizontally, kiln body, combustion chamber (8), automatic control system, exhausting and the hot air circulation be made up of blower kiln (2), exhausting kiln (3), heating chamber (4) and reduction chamber (5) are utilized system and anti-oxidation ore discharge system; Said feeding system is positioned at the front end top of the said fixed bed that moves horizontally (9); The end of the said fixed bed that moves horizontally (9) is connected with scraper plate machine (14); Each chamber of said kiln body links to each other with the said fixed bed that moves horizontally (9), and its top links to each other with said combustion chamber (8), and its bottom utilizes system to link to each other with said exhausting and hot air circulation, and its afterbody links to each other with said anti-oxidation ore discharge system; Said automatic control system links to each other with anti-oxidation ore discharge system with said feeding system, kiln body respectively.
2. as claimed in claim 1 moving horizontally-fixed-bed type magnetization reduction calciner is characterized in that: said feeding system is made up of the material distributing machine (1) that ore storage bin I (10), ore storage bin II (11) and bottom thereof link to each other; Said material distributing machine (1) is positioned at the front end top of the said fixed bed that moves horizontally (9); Said material distributing machine (1) is provided with flow quantity control instrument, and this flow quantity control instrument links to each other with said automatic control system.
3. as claimed in claim 1 moving horizontally-fixed-bed type magnetization reduction calciner is characterized in that: the length of the said fixed bed that moves horizontally (9) is 60～150m, and is made up of the grillflooring of even setting.
4. as claimed in claim 1 moving horizontally-fixed-bed type magnetization reduction calciner; It is characterized in that: the top of said blower kiln (2) utilizes system to communicate with said exhausting and hot air circulation, and its bottom communicates through valve I with the bottom of said heating chamber (4) and the top of said exhausting kiln (3); The bottom of said exhausting kiln (3) utilizes system to communicate with said exhausting and hot air circulation; Said heating chamber (4) top communicates with said heating system; The top of said reduction chamber (5) is provided with reducing gas pipeline (15), and its bottom links to each other with top one side of said heating chamber (4); Be equipped with temperature probe in said heating chamber (4) and the said reduction chamber (5), this temperature probe links to each other with said automatic control system.
5. as claimed in claim 1 moving horizontally-fixed-bed type magnetization reduction calciner is characterized in that: a side of said combustion chamber (8) is respectively equipped with gas line (6), air line (7), its bottom with said heating chamber (4) in the mineral aggregate layer communicate.
6. as claimed in claim 1 moving horizontally-fixed-bed type magnetization reduction calciner; It is characterized in that: said exhausting and hot air circulation utilize system to comprise chimney (12); Bottom one side of this chimney communicates through valve II with the bottom of said exhausting kiln (3), and its top one side communicates through valve III with the top of said blower kiln (2).
7. as claimed in claim 1 moving horizontally-fixed-bed type magnetization reduction calciner is characterized in that: the bottom of said blower kiln (2) communicates through valve IV with the bottom of said heating chamber (4).
8. as claimed in claim 1 moving horizontally-fixed-bed type magnetization reduction calciner is characterized in that: said anti-oxidation ore discharge system is meant water cooling plant or dry and cold device; Said water cooling plant or dry and cold device are provided with controller, and this controller links to each other with said automatic control system.
9. as claimed in claim 8 moving horizontally-fixed-bed type magnetization reduction calciner is characterized in that: said water cooling plant is the pond of interior water-filling, and an end top in this pond links to each other with the terminal bottom of said fixed bed (9); Be connected with the machine of taking out of (13) in the said pond.
10. as claimed in claim 8 moving horizontally-fixed-bed type magnetization reduction calciner is characterized in that: said dry and cold device is the ore storage bin of interior inflated with nitrogen, and an end of this ore storage bin links to each other with the bottom of said scraper plate machine (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202530095U CN202380056U (en) | 2011-07-14 | 2011-07-14 | Horizontal movement-fixed-bed magnetization reductive roasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202530095U CN202380056U (en) | 2011-07-14 | 2011-07-14 | Horizontal movement-fixed-bed magnetization reductive roasting device |
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| Publication Number | Publication Date |
|---|---|
| CN202380056U true CN202380056U (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202530095U Expired - Fee Related CN202380056U (en) | 2011-07-14 | 2011-07-14 | Horizontal movement-fixed-bed magnetization reductive roasting device |
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| CN (1) | CN202380056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108285972A (en) * | 2017-01-09 | 2018-07-17 | 湖北凤山矿业有限公司 | A kind of iron ore magnetizing roast method and its device |
-
2011
- 2011-07-14 CN CN2011202530095U patent/CN202380056U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108285972A (en) * | 2017-01-09 | 2018-07-17 | 湖北凤山矿业有限公司 | A kind of iron ore magnetizing roast method and its device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20130714 |