CN203866370U - Pretreatment and compounding system for pellet ferriferous raw materials for iron steel metallurgy - Google Patents
Pretreatment and compounding system for pellet ferriferous raw materials for iron steel metallurgy Download PDFInfo
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- CN203866370U CN203866370U CN201420279108.4U CN201420279108U CN203866370U CN 203866370 U CN203866370 U CN 203866370U CN 201420279108 U CN201420279108 U CN 201420279108U CN 203866370 U CN203866370 U CN 203866370U
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Abstract
A pretreatment and compounding system for pellet ferriferous raw materials for iron steel metallurgy is characterized by comprising an incoming material belt conveyor used for transporting iron ore concentrate to a high pressure roller chamber, a roller sieving machine arranged below a nose of the incoming material belt conveyor, an iron ore concentrate buffering cabin arranged below the roller sieving machine, a movable dosing machine arranged below the iron ore concentrate buffering cabin, a high pressure roller arranged below the nose of the dosing machine, a by-pass chute arranged on one side of the high pressure roller and a compounding belt conveyor used for transporting materials discharged from the high pressure roller or the by-pass chute into the compounding chamber sequentially in the material stream direction, wherein a bentonite and dust storing and feeding system is arranged in the compounding chamber and is used for transporting bentonite and dust to the compounding belt conveyor, the bentonite and the dust are sent to the following process together with the iron ore concentrate on the compounding belt conveyor; the occupied area of the compounding chamber is reduced, the capital construction investment is reduced, material transport and loss is reduced, and operation energy consumption is saved.
Description
Technical field
The utility model relates to pre-treatment of raw material and batching in material field of metallurgy, refers more particularly to pellet iron-bearing material pre-treatment and feed proportioning system for ferrous metallurgy.
Background technology
At metallurgy, with in pellet production field, the iron ore concentrate that water content is qualified can not meet the needs of green-ball pelletizing completely, and pelletizing operation need to be considered granularity and the specific surface area of iron ore concentrate equally.Current existing technique is by high pressure roller mill operation, the granularity of iron ore concentrate and specific surface area to be improved, to meet the requirement of pellet forming process, make the iron ore concentrate with qualified water content, granularity and specific surface area in batching conveyor drive is transported to batching ore deposit groove, concentrate batching.Existing iron-bearing material pre-treatment and proportioning process be specifically as shown in Figure 1: the iron ore concentrate in pellet feed drops down onto successively batching conveyor drive and treats together to enter next procedure with other raw materials after supplied materials conveyor drive, roller type sieving machine, iron ore concentrate storehouse, constant feeder, high-pressure roller mill, transhipment conveyor drive, iron ore concentrate storehouse, Vibrating funnel, disk feeder, batching electronic scale; Wilkinite in pellet feed is by air conveying to wilkinite storehouse, then after revolution feeding machine, batching electronic scale, drops down onto batching conveyor drive and treat together to enter next procedure with other raw materials; Dust in pellet feed is by air conveying to dust storehouse, then after revolution feeding machine, batching electronic scale, drops down onto batching conveyor drive and treat together to enter next procedure with other raw materials.There are the following problems for it:
1, iron ore concentrate storehouse and wilkinite storehouse, dust storehouse are all arranged in proportioning room inside, and in proportioning room, ore storage bin number is more, causes the floor space of proportioning room large, and facility investment and capital construction cost increase.
2, high pressure roller mill chamber and proportioning room are arranged apart, cause iron ore concentrate have bad luck stroke long, have bad luck often, have bad luck the loss causing in process large, the expense of once investment, energy consumption and operating repairs of having bad luck equipment and conveyor gallery is large.
Summary of the invention
The purpose of this utility model is for a kind of ferrous metallurgy addressing the above problem pellet iron-bearing material pre-treatment and feed proportioning system are provided, to reduce proportioning room floor space, to reduce capital construction investment, minimizing material is had bad luck and scatter and disappear, save operation energy consumption.
The technical solution of the utility model is:
Pellet iron-bearing material pre-treatment and a feed proportioning system for ferrous metallurgy, is characterized in that, according to streams direction, comprises successively:
Supplied materials endless belt conveyor, indoor for iron ore concentrate is transported to high pressure roller mill;
Roller type sieving machine, is arranged on described supplied materials endless belt conveyor head below, for screening out lump ore and foreign material;
Iron ore concentrate surge bunker, is arranged on described roller type sieving machine below, the iron ore concentrate through sieving for access storage;
Mobile constant feeder, is arranged on described iron ore concentrate surge bunker below, for weighing the weight of material being fallen by iron ore concentrate surge bunker and regulating feeding coal by speed control by frequency variation;
High-pressure roller mill, is arranged on described mobile dosing machine head below, for accepting described mobile constant feeder feed and material being carried out to roll-in milled processed;
Bypass chute, is arranged on described high-pressure roller mill one side, while requiring for meet batching at described high-pressure roller mill trouble shooting or iron ore concentrate, accepts described mobile constant feeder and moves to the material that transfer its top;
Batching endless belt conveyor, for carrying the material of being transferred by described high-pressure roller mill or bypass chute in proportioning room;
Wilkinite and dust are stored, feeding system, are arranged in described proportioning room, for carrying wilkinite and dust to described batching endless belt conveyor, transport next process to together with iron ore concentrate on batching endless belt conveyor.
Pellet iron-bearing material pre-treatment and feed proportioning system for above-mentioned ferrous metallurgy, described wilkinite is stored, feeding system is comprised of wilkinite surge bunker, the batching electronic scale that is connected in the revolution feeding machine with speed control by frequency variation function of described wilkinite surge bunker bottom and is located at described revolution feeding machine below, and described wilkinite surge bunker is provided with electric gate valve with turning round between feeding machine; Described dust is stored, feeding system is comprised of dust surge bunker, the batching electronic scale that has speed control by frequency variation function revolution feeding machine and be located at described revolution feeding machine below that is connected in described dust surge bunker bottom, and described dust surge bunker is provided with electric gate valve with turning round between feeding machine.
Pellet iron-bearing material pre-treatment and feed proportioning system for above-mentioned ferrous metallurgy, on described wilkinite surge bunker and dust surge bunker, be equipped with radar level gauge and the level gage of weighing, described radar level gauge and the level gage of weighing have high, high and low three kinds of material level alert levels, and its signal output part is connected with the central controller signal input part in watch-keeping cubicle.
Pellet iron-bearing material pre-treatment and feed proportioning system for above-mentioned ferrous metallurgy, described wilkinite and dust surge bunker arrange respectively two feed openings, to realize a-worker-a-backup or to work simultaneously, while guaranteeing a feed opening equipment failure maintenance therein, whole process system still can normally be worked.
Pellet iron-bearing material pre-treatment and feed proportioning system for above-mentioned ferrous metallurgy, the weighing-up wave output terminal of described batching electronic scale is connected with revolution feeding machine signal feedback input terminus, measurement signal is fed back to revolution feeding machine, revolution feeding machine is according to the Signal Regulation feeding coal receiving, and two equipment complete the adjusting with addition of amount for material jointly.
Pellet iron-bearing material pre-treatment and feed proportioning system for above-mentioned ferrous metallurgy, described batching electronic scale adopts frequency control way, and wilkinite or dust feed-type adopt two frequency conversion batching modes, further to guarantee the precision of batching.
The beneficial effects of the utility model are:
1, adopt iron ore concentrate in feed proportioning system and wilkinite, dust arranged apart.Iron ore concentrate is participated in batching directly after high pressure roller mill, and the iron ore concentrate storehouse that is positioned at proportioning room inside is no longer set.Such processing set-up, first, has reduced the ore storage bin number in proportioning room, and then reduced floor space, facility investment and the capital construction cost of proportioning room, and high pressure roller mill chamber and proportioning room can be arranged apart, also can integral arrangement, layout pattern is relatively flexible, is easy to regular job and maintenance; Secondly, shorten having bad luck stroke and having bad luck number of times of iron ore concentrate, also reduced the loss causing during iron ore concentrate is had bad luck, and the expense of having bad luck once investment and energy consumption and the operating repairs of equipment and conveyor gallery.
2, iron ore concentrate surge bunker can be stored a certain amount of iron ore concentrate (being generally 3 hours consumptions), and when before storehouse, the system fault is overhauled, after in storehouse, material can guarantee storehouse, system is normally worked; When behind storehouse, the system fault is overhauled, before storehouse, system supplied materials can enter smoothly in surge bunker and store.Before and after regulating with this, the different situation of operating rate between system, solves the impact that host process ability, operation and maintenance situation are brought.
3, mobile constant feeder flows for high-pressure roller mill provides stable supplied materials material.It not only has weighing function, adopts weight batching principle, and can speed control by frequency variation, can adjust motor speed according to weighing result, with this, changes feeding coal.In addition, when high-pressure roller mill trouble shooting or material meet the demands, mobile constant feeder can be transported to iron ore concentrate in bypass chute, participates in batching directly.
4, high-pressure roller mill can further grind iron ore concentrate, improves granularity and the specific surface area of iron ore concentrate, with iron ore concentrate granularity and the specific surface area that guarantees to enter in feed proportioning system, meets processing requirement.In addition, described high-pressure roller mill carries bypass chute, as the short-circuit protection of whole process system in the utility model.When high-pressure roller mill trouble shooting or iron ore concentrate supplied materials meet batching and require, described bypass chute can, as the short-circuit device of roller mill, make iron ore concentrate participate in burden process directly.
5, revolution feeding machine can regulate the falling material amount of controlling wilkinite or dust surge bunker, and it adopts speed control by frequency variation, can according to production requirement regulate material with addition of amount.
6, between revolution feeding machine and wilkinite and dust surge bunker, electric gate valve is set respectively, when closing described electric gate valve, can stops material in wilkinite or dust surge bunker due to outside action of gravity discharge storehouse.Its effect can be summarized as 2 points: first, when wilkinite or dust, through air conveying, while entering surge bunker, close described electric gate valve, can prevent from overflowing from below Hatch Opening because malleation in storehouse causes the pulverulent material of fluidized; In addition, when bottom is turned round feeding machine trouble shooting or do not worked, close described electric gate valve, can prevent that in storehouse, material turns round on feeding machine because action of gravity is pressed in, and cause overhauling and to start.
Accompanying drawing explanation
Fig. 1 is existing pellet proportioning system flow block diagram;
Fig. 2 is the structural representation of pellet iron-bearing material pre-treatment and feed proportioning system for ferrous metallurgy described in the utility model.
Sequence number explanation in figure: 1 supplied materials endless belt conveyor, 2 roller type sieving machines, 3 iron ore concentrate surge bunkers, 4 move constant feeder, 5 high-pressure roller mills, 6 bypass chutes, 7 wilkinite surge bunkers, 8 dust surge bunkers, 9 revolution feeding machines, 10 batching electronic scales, 11 batching endless belt conveyor, 12 electric gate valves.
Embodiment
As shown in Figure 2, ferrous metallurgy of the present utility model is mainly that iron ore concentrate storehouse in proportioning room is independent with the pre-treatment of pellet iron-bearing material and feed proportioning system, can consider with proportioning room arranged apart, or by high pressure roller mill chamber and the unified layout of proportioning room, in the present embodiment, high pressure roller mill chamber and proportioning room is arranged apart.The iron ore concentrate of qualified water content does not enter proportioning room, but first enters high-pressure roller mill, then directly has bad luck to batching endless belt conveyor 11.For achieving the above object, pellet iron-bearing material pre-treatment and feed proportioning system for this ferrous metallurgy, comprise successively according to streams direction: supplied materials endless belt conveyor 1; Roller type sieving machine 2, is arranged on described supplied materials endless belt conveyor 1 head below; Iron ore concentrate surge bunker 3, is arranged on described roller type sieving machine 2 belows, the iron ore concentrate through sieving for access storage; Mobile constant feeder 4, is arranged on described iron ore concentrate surge bunker 3 belows, for weighing the weight of material being fallen by iron ore concentrate surge bunker 3 and regulating feeding coal by speed control by frequency variation; High-pressure roller mill 5, is arranged on described mobile constant feeder 4 head belows, for accepting described mobile constant feeder 4 feeds and material being carried out to roll-in milled processed; Bypass chute 6, is arranged on described high-pressure roller mill 5 one sides, while requiring for meet batching at described high-pressure roller mill 4 trouble shootings or iron ore concentrate, accepts described mobile constant feeder 4 and moves to the material that transfer its top; Batching endless belt conveyor 11, for carrying the material of being transferred by described high-pressure roller mill 5 or bypass chute 6 in proportioning room; Wilkinite and dust are stored, feeding system, are arranged in described proportioning room, for carrying wilkinite and dusts to described batching endless belt conveyor 11, transport next process to together with iron ore concentrate on batching endless belt conveyor 11.Wherein, described wilkinite is stored, feeding system is comprised of wilkinite surge bunker 7, the batching electronic scale 10 that is connected in the revolution feeding machine 9 with speed control by frequency variation function of described wilkinite surge bunker 7 bottoms and is located at described revolution feeding machine 9 belows, and described wilkinite surge bunker 7 is provided with electric gate valve 12 with turning round between feeding machine 9; Described dust is stored, feeding system is comprised of dust surge bunker 8, the batching electronic scale 10 that has speed control by frequency variation function revolution feeding machine 9 and be located at described revolution feeding machine 9 belows that is connected in described dust surge bunker 8 bottoms, and described dust surge bunker 8 is provided with electric gate valve 12 with turning round between feeding machine 9.On described wilkinite surge bunker 7 and dust surge bunker 8, be equipped with radar level gauge and the level gage of weighing, described radar level gauge and the level gage of weighing have high, high and low three kinds of material level alert levels, and its signal output part is connected with the central controller signal input part in watch-keeping cubicle.Described wilkinite, dust surge bunker 7,8 arrange respectively two feed openings, to realize a-worker-a-backup or to work simultaneously.The weighing-up wave output terminal of described batching electronic scale 10 is connected to revolution feeding machine 9 signal input parts, measurement signal is fed back to revolution feeding machine 9, revolution feeding machine 9 is according to the Signal Regulation feeding coal receiving, and two equipment complete the adjusting with addition of amount for material jointly.Described batching electronic scale also can adopt frequency control way, and wilkinite or dust feed-type adopt two frequency conversion batching modes, further to guarantee the precision of batching.
Technical process: have bad luck to high pressure roller mill indoor through the qualified water content iron ore concentrate of neutralizing treatment or the iron ore concentrate origin material belt type transfer roller 1 of process drying treatment in material storage yard, first through roller type sieving machine 2, screen out lump ore and foreign material, form of small iron particles concentrate enters the interior storage of iron ore concentrate surge bunker 3 by sieve roller gap, iron ore concentrate surge bunker 3 bottoms configure mobile constant feeder 4, mobile constant feeder 4 is accurately controlled the inventory of discharging in storehouse, and material is sent into high-pressure roller mill 5.Material, by after high pressure roller mill, can drop down onto on batching endless belt conveyor 11, participates in batching (if when high-pressure roller mill trouble shooting and material grind operation without roller, material can directly be dropped down onto on batching endless belt conveyor 11 and be participated in batching by bypass chute 6); Wilkinite and the dust of being sent here by pneumatic transporting accepted respectively and stored to wilkinite surge bunker 7 and dust surge bunker 8, open electric gate valve 12,9 speed control by frequency variations of revolution feeding machine realize feed, batching electronic scale 10 weighing sections weigh material on scale, signal feedback is given revolution feeding machine 9, by revolution feeding machine 9 control material in top wilkinites or dust surge bunker with addition of amount, finally, on batching electronic scale 10, material drops down onto on batching endless belt conveyor 11, jointly enters next process with the iron ore concentrate through the operation of roller mill.
Claims (6)
1. pellet iron-bearing material pre-treatment and a feed proportioning system for ferrous metallurgy, is characterized in that, according to streams direction, comprises successively:
Supplied materials endless belt conveyor, for being transported to iron ore concentrate roller mill compounding plant;
Roller type sieving machine, is arranged on described supplied materials endless belt conveyor head below, for screening out lump ore and foreign material;
Iron ore concentrate surge bunker, is arranged on described roller type sieving machine below, the iron ore concentrate through sieving for access storage;
Mobile constant feeder, is arranged on described iron ore concentrate surge bunker below, for weighing the weight of material being fallen by iron ore concentrate surge bunker and regulating feeding coal by speed control by frequency variation;
High-pressure roller mill, is arranged on described mobile dosing machine head below, for accepting described mobile constant feeder feed and material being carried out to roll-in milled processed;
Bypass chute, is arranged on described high-pressure roller mill one side, while requiring for meet batching at described high-pressure roller mill trouble shooting or iron ore concentrate, accepts described mobile constant feeder and moves to the material that transfer its top;
Batching endless belt conveyor, for carrying the material of being transferred by described high-pressure roller mill or bypass chute in proportioning room;
Wilkinite and dust are stored, feeding system, are arranged in described proportioning room, for carrying wilkinite and dust to described batching endless belt conveyor, transport next process to together with iron ore concentrate on batching endless belt conveyor.
2. pellet iron-bearing material pre-treatment and feed proportioning system for ferrous metallurgy according to claim 1, it is characterized in that: described wilkinite is stored, feeding system is comprised of wilkinite surge bunker, the batching electronic scale that is connected in the revolution feeding machine with speed control by frequency variation function of described wilkinite surge bunker bottom and is located at described revolution feeding machine below, described wilkinite surge bunker is provided with electric gate valve with turning round between feeding machine; Described dust is stored, feeding system is comprised of dust surge bunker, the batching electronic scale that has speed control by frequency variation function revolution feeding machine and be located at described revolution feeding machine below that is connected in described dust surge bunker bottom, and described dust surge bunker is provided with electric gate valve with turning round between feeding machine.
3. pellet iron-bearing material pre-treatment and feed proportioning system for ferrous metallurgy according to claim 2, it is characterized in that: on described wilkinite surge bunker and dust surge bunker, be equipped with radar level gauge and the level gage of weighing, described radar level gauge and the level gage of weighing have high, high and low three kinds of material level alert levels, and its signal output part is connected with the central controller signal input part in watch-keeping cubicle.
4. pellet iron-bearing material pre-treatment and feed proportioning system for ferrous metallurgy according to claim 2, is characterized in that: described wilkinite and dust surge bunker arrange respectively two feed openings.
5. pellet iron-bearing material pre-treatment and feed proportioning system for ferrous metallurgy according to claim 2, is characterized in that: the weighing-up wave output terminal of described batching electronic scale is connected with revolution feeding machine signal feedback input terminus.
6. pellet iron-bearing material pre-treatment and feed proportioning system for ferrous metallurgy according to claim 2, is characterized in that: described batching electronic scale adopts frequency control way, and wilkinite or dust feed-type adopt two frequency conversion batching modes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279108.4U CN203866370U (en) | 2014-05-29 | 2014-05-29 | Pretreatment and compounding system for pellet ferriferous raw materials for iron steel metallurgy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279108.4U CN203866370U (en) | 2014-05-29 | 2014-05-29 | Pretreatment and compounding system for pellet ferriferous raw materials for iron steel metallurgy |
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| Publication Number | Publication Date |
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| CN203866370U true CN203866370U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420279108.4U Withdrawn - After Issue CN203866370U (en) | 2014-05-29 | 2014-05-29 | Pretreatment and compounding system for pellet ferriferous raw materials for iron steel metallurgy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966430A (en) * | 2014-05-29 | 2014-08-06 | 中冶北方（大连）工程技术有限公司 | Ferrous metallurgy pellet iron-containing raw material preprocessing and dosing system |
| CN114620461A (en) * | 2022-02-08 | 2022-06-14 | 广西钢铁集团有限公司 | Pellet ore grading transfer method |
-
2014
- 2014-05-29 CN CN201420279108.4U patent/CN203866370U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966430A (en) * | 2014-05-29 | 2014-08-06 | 中冶北方（大连）工程技术有限公司 | Ferrous metallurgy pellet iron-containing raw material preprocessing and dosing system |
| CN103966430B (en) * | 2014-05-29 | 2015-11-18 | 中冶北方（大连）工程技术有限公司 | The ferrous metallurgy pre-treatment of pellet iron-bearing material and feed proportioning system |
| CN114620461A (en) * | 2022-02-08 | 2022-06-14 | 广西钢铁集团有限公司 | Pellet ore grading transfer method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141008 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |