CN103966430B - The ferrous metallurgy pre-treatment of pellet iron-bearing material and feed proportioning system - Google Patents
The ferrous metallurgy pre-treatment of pellet iron-bearing material and feed proportioning system Download PDFInfo
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- CN103966430B CN103966430B CN201410230945.2A CN201410230945A CN103966430B CN 103966430 B CN103966430 B CN 103966430B CN 201410230945 A CN201410230945 A CN 201410230945A CN 103966430 B CN103966430 B CN 103966430B
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Abstract
A kind of the ferrous metallurgy pre-treatment of pellet iron-bearing material and feed proportioning system, is characterized in that, comprise successively according to streams direction: supplied materials endless belt conveyor, for iron ore concentrate is transported to high pressure roller mill indoor; Roller type sieving machine, is arranged on below supplied materials belt conveyer head, iron ore concentrate surge bunker, is arranged on below roller type sieving machine; Mobile constant feeder, is arranged on below iron ore concentrate surge bunker; High-pressure roller mill, is arranged on below mobile dosing machine head; Bypass chute, is arranged on high-pressure roller mill side; Batching endless belt conveyor, for carrying the material of being transferred by high-pressure roller mill or bypass chute in proportioning room; Wilkinite and dust are stored, feeding system, are arranged in proportioning room, for batching endless belt conveyor conveying wilkinite and dust, transport next process to together with the iron ore concentrate on batching endless belt conveyor.Which reduce proportioning room floor space, reduce capital construction investment, decrease material and have bad luck and scatter and disappear, save operation energy consumption.
Description
Technical field
The present invention relates to pre-treatment of raw material and batching in material field of metallurgy, refer more particularly to the iron-bearing material pre-treatment of ferrous metallurgy pellet and feed proportioning system.
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 needs granularity and the specific surface area of considering iron ore concentrate equally.Current existing technique is improved the granularity of iron ore concentrate and specific surface area by high pressure roller mill operation, to meet the requirement of pellet forming process, the iron ore concentrate with qualified water content, granularity and specific surface area is transported in the groove of batching ore deposit through batching conveyor drive, carries out concentrating batching.Existing iron-bearing material pre-treatment and proportioning process are concrete as shown in Figure 1: the iron ore concentrate in pellet feed drops down onto batching conveyor drive successively 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 by air conveying to wilkinite storehouse, then drop down onto batching conveyor drive and treats together to enter next procedure with other raw materials after revolution feeding machine, batching electronic scale; Dust in pellet feed by air conveying to dust storehouse, then drop down onto batching conveyor drive and treats together to enter next procedure with other raw materials after revolution feeding machine, batching electronic scale.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, then cause the floor space of proportioning room large, facility investment and capital construction cost increase.
2, high pressure roller mill room and proportioning room arranged apart, cause iron ore concentrate have bad luck stroke long, have bad luck often, it is large to have bad luck the loss caused in process, have bad luck once the investing of equipment and conveyor gallery, energy consumption and operating repairs expense large.
Summary of the invention
The object of the invention is to provide a kind of ferrous metallurgy pellet iron-bearing material pre-treatment of solving the problem and feed proportioning system, reducing proportioning room floor space, reduction capital construction investment, reducing material and have bad luck and scatter and disappear, save operation energy consumption.
Technical scheme of the present invention is:
A kind of the ferrous metallurgy pre-treatment of pellet iron-bearing material and feed proportioning system, is characterized in that, comprise successively according to streams direction:
Supplied materials endless belt conveyor, for being transported to high pressure roller mill indoor by iron ore concentrate;
Roller type sieving machine, is arranged on below described supplied materials belt conveyer head, for screening out lump ore and foreign material;
Iron ore concentrate surge bunker, is arranged on below described roller type sieving machine, for the access also iron ore concentrate of storage through sieving;
Mobile constant feeder, is arranged on below described iron ore concentrate surge bunker, for weighing the weight of material that fallen by iron ore concentrate surge bunker and regulating feeding coal by speed control by frequency variation;
High-pressure roller mill, is arranged on below described mobile dosing machine head, for accepting described mobile constant feeder feed and carrying out roll-in milled processed to material;
Bypass chute, is arranged on described high-pressure roller mill side, for when described high-pressure roller mill trouble shooting or iron ore concentrate meet dispensing requirements, accepts described mobile constant feeder and moves to the material of transferring above it;
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 described batching endless belt conveyor conveying wilkinite and dust, transport next process to together with the iron ore concentrate on batching endless belt conveyor.
Above-mentioned ferrous metallurgy pellet iron-bearing material pre-treatment and feed proportioning system, the storage of described wilkinite, feeding system by wilkinite surge bunker, be connected to the revolution feeding machine with speed control by frequency variation function bottom described wilkinite surge bunker and the batching electronic scale be located at below described revolution feeding machine forms, be provided with electric gate valve between described wilkinite surge bunker and revolution feeding machine; The storage of described dust, feeding system turn round feeding machine and the batching electronic scale be located at below described revolution feeding machine forms by dust surge bunker, the speed control by frequency variation function that has be connected to bottom described dust surge bunker, are provided with electric gate valve between described dust surge bunker and revolution feeding machine.
Above-mentioned ferrous metallurgy pellet iron-bearing material pre-treatment and feed proportioning system, described wilkinite surge bunker and dust surge bunker are equipped with radar level gauge and level gage of weighing, described radar level gauge and 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.
Above-mentioned ferrous metallurgy pellet iron-bearing material pre-treatment and feed proportioning system, described wilkinite and dust surge bunker arrange two feed opening respectively, to realize a-worker-a-backup or to work simultaneously, when ensureing a feed opening equipment failure maintenance wherein, whole process system still can normally work.
Above-mentioned ferrous metallurgy pellet iron-bearing material pre-treatment and feed proportioning system, the weighing-up wave output terminal of described batching electronic scale is connected with revolution feeding machine signal feedback input terminus, so that measurement signal is fed back to revolution feeding machine, revolution feeding machine is according to the Signal Regulation feeding coal received, and two equipment complete jointly for the adjustment of material with addition of amount.
Above-mentioned ferrous metallurgy pellet iron-bearing material pre-treatment and feed proportioning system, described batching electronic scale adopts frequency control way, and wilkinite or dust feed-type adopt two frequency conversion batching mode, to ensure the precision of preparing burden further.
The invention has the beneficial effects as follows:
1, adopt iron ore concentrate in feed proportioning system and wilkinite, dust arranged apart.Iron ore concentrate participates in batching directly after high pressure roller mill, no longer arranges the iron ore concentrate storehouse being positioned at proportioning room inside.Such processing set-up, first, decreases the ore storage bin number in proportioning room, and then decrease the floor space of proportioning room, facility investment and capital construction cost, and high pressure roller mill room 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, decrease during iron ore concentrate is had bad luck the loss caused, and have bad luck the expense of once investment and energy consumption and operating repairs of equipment and conveyor gallery.
2, iron ore concentrate surge bunker can store a certain amount of iron ore concentrate (being generally 3 hours consumptions), and when the system fault before storehouse is overhauled, in storehouse, material can ensure system worked well behind storehouse; When the system fault behind storehouse is overhauled, before storehouse, system supplied materials can enter storage in surge bunker smoothly.Regulate with this situation that between the system of front and back, operating rate is different, solve the impact that host processing power, operation and maintenance situation are brought.
3, mobile constant feeder provides stable supplied materials stream for high-pressure roller mill.It not only has weighing function, adopts weight batching principle, and can speed control by frequency variation, can adjust motor speed, change feeding coal with this according to weighing result.In addition, when high-pressure roller mill trouble shooting or material meet the demands, iron ore concentrate can be transported in bypass chute by mobile constant feeder, participates in batching directly.
4, high-pressure roller mill can grind further to iron ore concentrate, improves granularity and the specific surface area of iron ore concentrate, to ensure to enter iron ore concentrate granularity in feed proportioning system and specific surface area meets processing requirement.In addition, described high-pressure roller mill carries bypass chute, as the short-circuit protection of process system whole in the present invention.When high-pressure roller mill trouble shooting or iron ore concentrate supplied materials meet dispensing requirements, described bypass chute can, as the short-circuit device of roller mill, make iron ore concentrate participate in burden process directly.
5, turning round feeding machine can the falling material amount of regulable control 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, turn round feeding machine and between wilkinite and dust surge bunker, electric gate valve is set respectively, when electric gate valve described in closing, the material in wilkinite or dust surge bunker can be stoped to discharge outside storehouse due to action of gravity.Its effect can be summarized as 2 points: first, when wilkinite or dust through air conveying enter surge bunker time, the electric gate valve described in closedown, can prevent due to malleation in storehouse cause the pulverulent material of fluidized from below Hatch Opening overflow; In addition, when bottom revolution feeding machine trouble shooting or when not working, the electric gate valve described in closedown, can prevent material in storehouse from turning 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 ferrous metallurgy pellet iron-bearing material pre-treatment of the present invention and feed proportioning system.
In figure, sequence number illustrates: 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 pellet iron-bearing material pre-treatment of the present invention and feed proportioning system are mainly by independent for iron ore concentrate storehouse in proportioning room, can consider with proportioning room arranged apart, or arrange unified to high pressure roller mill room and proportioning room, in the present embodiment by high pressure roller mill room and proportioning room 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 on batching endless belt conveyor 11.For achieving the above object, this ferrous metallurgy pre-treatment of pellet iron-bearing material and feed proportioning system, comprise successively according to streams direction: supplied materials endless belt conveyor 1; Roller type sieving machine 2, is arranged on below described supplied materials endless belt conveyor 1 head; Iron ore concentrate surge bunker 3, is arranged on below described roller type sieving machine 2, for the access also iron ore concentrate of storage through sieving; Mobile constant feeder 4, is arranged on below described iron ore concentrate surge bunker 3, for weighing the weight of material that 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 below described mobile constant feeder 4 head, for accepting described mobile constant feeder 4 feed and carrying out roll-in milled processed to material; Bypass chute 6, is arranged on described high-pressure roller mill 5 side, for when the trouble shooting of described high-pressure roller mill 4 or iron ore concentrate meet dispensing requirements, accepts described mobile constant feeder 4 and moves to the material of transferring above it; 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 dust to described batching endless belt conveyor 11, transport next process to together with the iron ore concentrate on batching endless belt conveyor 11.Wherein, the storage of described wilkinite, feeding system by wilkinite surge bunker 7, be connected to the revolution feeding machine 9 with speed control by frequency variation function bottom described wilkinite surge bunker 7 and the batching electronic scale 10 be located at below described revolution feeding machine 9 forms, be provided with electric gate valve 12 between described wilkinite surge bunker 7 and revolution feeding machine 9; The storage of described dust, feeding system turn round feeding machine 9 and the batching electronic scale 10 be located at below described revolution feeding machine 9 forms by dust surge bunker 8, the speed control by frequency variation function that has be connected to bottom described dust surge bunker 8, are provided with electric gate valve 12 between described dust surge bunker 8 and revolution feeding machine 9.Described wilkinite surge bunker 7 and dust surge bunker 8 are equipped with radar level gauge and level gage of weighing, described radar level gauge and 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 two feed opening respectively, 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 part, measurement signal to be fed back to revolution feeding machine 9, revolution feeding machine 9 is according to the Signal Regulation feeding coal received, and two equipment complete jointly for the adjustment of material with addition of amount.Described batching electronic scale also can adopt frequency control way, and wilkinite or dust feed-type adopt two frequency conversion batching mode, to ensure the precision of preparing burden further.
Technical process: the qualified water content iron ore concentrate through neutralizing treatment in material storage yard or the iron ore concentrate origin material belt type transfer roller 1 through drying treatment are had bad luck to high pressure roller mill indoor, first lump ore and foreign material are screened out through roller type sieving machine 2, form of small iron particles concentrate enters storage in iron ore concentrate surge bunker 3 by sieve roller gap, iron ore concentrate surge bunker 3 bottom configures mobile constant feeder 4, mobile constant feeder 4 accurately controls 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 are without the need to the operation of roller mill, material directly drops down onto on batching endless belt conveyor 11 by bypass chute 6 and participates in batching); Wilkinite surge bunker 7 and dust surge bunker 8 accept respectively and store the wilkinite and dust sent here by pneumatic transporting, open electric gate valve 12, the speed control by frequency variation of revolution feeding machine 9 realizes feed, batching electronic scale 10 weighing section weighs material on scale, signal feedback gives revolution feeding machine 9, by revolution feeding machine 9 control top wilkinite or dust surge bunker in material 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 grinding operation through roller.
Claims (6)
1. the ferrous metallurgy pre-treatment of pellet iron-bearing material and a feed proportioning system, is characterized in that, comprises successively according to streams direction:
Supplied materials endless belt conveyor, for being transported to roller mill compounding plant by iron ore concentrate;
Roller type sieving machine, is arranged on below described supplied materials belt conveyer head, for screening out lump ore and foreign material;
Iron ore concentrate surge bunker, is arranged on below described roller type sieving machine, for the access also iron ore concentrate of storage through sieving;
Mobile constant feeder, is arranged on below described iron ore concentrate surge bunker, for weighing the weight of material that fallen by iron ore concentrate surge bunker and regulating feeding coal by speed control by frequency variation;
High-pressure roller mill, is arranged on below described mobile dosing machine head, for accepting described mobile constant feeder feed and carrying out roll-in milled processed to material;
Bypass chute, is arranged on described high-pressure roller mill side, for when described high-pressure roller mill trouble shooting or iron ore concentrate meet dispensing requirements, accepts described mobile constant feeder and moves to the material of transferring above it;
Batching endless belt conveyor, for carrying the material of being transferred by described high-pressure roller mill or bypass chute in proportioning room;
Wilkinite storage and feeding system and dust storage and feeding system, be arranged in described proportioning room, for described batching endless belt conveyor conveying wilkinite and dust, transport next process to together with the iron ore concentrate on batching endless belt conveyor.
2. ferrous metallurgy pellet iron-bearing material pre-treatment according to claim 1 and feed proportioning system, it is characterized in that: the storage of described wilkinite and feeding system by wilkinite surge bunker, be connected to the revolution feeding machine with speed control by frequency variation function bottom described wilkinite surge bunker and the batching electronic scale be located at below described revolution feeding machine forms, be provided with electric gate valve between described wilkinite surge bunker and revolution feeding machine; The storage of described dust and feeding system turn round feeding machine and the batching electronic scale be located at below described revolution feeding machine forms by dust surge bunker, the speed control by frequency variation function that has be connected to bottom described dust surge bunker, are provided with electric gate valve between described dust surge bunker and revolution feeding machine.
3. ferrous metallurgy pellet iron-bearing material pre-treatment according to claim 2 and feed proportioning system, it is characterized in that: described wilkinite surge bunker and dust surge bunker are equipped with radar level gauge and level gage of weighing, described radar level gauge and 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. ferrous metallurgy pellet iron-bearing material pre-treatment according to claim 2 and feed proportioning system, is characterized in that: described wilkinite surge bunker and dust surge bunker arrange two feed opening respectively.
5. ferrous metallurgy pellet iron-bearing material pre-treatment according to claim 2 and feed proportioning system, 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. ferrous metallurgy pellet iron-bearing material pre-treatment according to claim 2 and feed proportioning system, is characterized in that: described batching electronic scale adopts frequency control way, and wilkinite or dust feed-type adopt two frequency conversion batching mode.
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| CN106440818B (en) * | 2016-11-01 | 2018-05-29 | 中冶焦耐(大连)工程技术有限公司 | A kind of compact heat sinter movement system and technique |
| CN109353850A (en) * | 2018-12-04 | 2019-02-19 | 辽宁工程技术大学 | A kind of intelligent loading system in fire dress station |
| CN114212793A (en) * | 2022-01-05 | 2022-03-22 | 中冶东方工程技术有限公司 | Metal silicon smelting batching system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101643841A (en) * | 2009-08-21 | 2010-02-10 | 武汉钢铁(集团)公司 | Additive for improving metallurgical performance of all Fe2O3 pellets and use method thereof |
| CN203613239U (en) * | 2013-12-04 | 2014-05-28 | 河南昱千鑫金属科技有限公司 | Automatical batching powder ball pressing system |
| CN203866370U (en) * | 2014-05-29 | 2014-10-08 | 中冶北方（大连）工程技术有限公司 | Pretreatment and compounding system for pellet ferriferous raw materials for iron steel metallurgy |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643841A (en) * | 2009-08-21 | 2010-02-10 | 武汉钢铁(集团)公司 | Additive for improving metallurgical performance of all Fe2O3 pellets and use method thereof |
| CN203613239U (en) * | 2013-12-04 | 2014-05-28 | 河南昱千鑫金属科技有限公司 | Automatical batching powder ball pressing system |
| CN203866370U (en) * | 2014-05-29 | 2014-10-08 | 中冶北方（大连）工程技术有限公司 | Pretreatment and compounding system for pellet ferriferous raw materials for iron steel metallurgy |
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