CN201186935Y - Flow division control device for supplying electric stove with high temperature direct reduced iron - Google Patents
Flow division control device for supplying electric stove with high temperature direct reduced iron Download PDFInfo
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- CN201186935Y CN201186935Y CNU2008200061768U CN200820006176U CN201186935Y CN 201186935 Y CN201186935 Y CN 201186935Y CN U2008200061768 U CNU2008200061768 U CN U2008200061768U CN 200820006176 U CN200820006176 U CN 200820006176U CN 201186935 Y CN201186935 Y CN 201186935Y
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- reduced iron
- flow
- high temperature
- splitter
- control device
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Abstract
A shunt control device is applicable to the direct multi-point feeding of high-temperature direct reduced iron products of the steel metallurgical industry to a smelting electric furnace. The reduced iron can generate the self-flow by the self-gravity under a certain slope by utilizing the nature that the powder reduced iron can generate the self-flow by the self-gravity under the certain slope and carrying out the downward tilt arrangement of a material groove; a material flow which is input by the material groove is divided to 2 to 3 shares of the materials through a first-stage shunt, the single share of the materials which is come from the first-stage shunt is led into a second-stage shunt through a material distributing groove, a material distributing pipe supplies the high-temperature reduced iron which is come from a final-stage shunt to a charging hole of the smelting electric furnace, thereby improving the melting ability of the electric furnace, shortening the smelting cycle and increasing the yield of the electric furnace. The device has simple technology, lightweight device, airtight transportation, no dust pollution and ability of retaining physical heat of the high-temperature reduced iron, the rate of each share of the material flow can be arbitrarily controlled, the investment is less, the operation cost is low, the maintenance is convenient, the device is economic and practical, so the heat of the reduced iron can be high efficiently utilized.
Description
Technical field
The utility model relates to a kind of flow-dividing control device to electric furnace supplying high temperature direct-reduced iron, and the high temperature direct-reduced iron product that can be used for ferrous metallurgy industry is realized the direct feeding of multiple spot to electric melting furnace.
Background technology
Electric furnace steel making is a furnace charge with steel scrap or direct-reduced iron (DRI), steel scrap resource worsening shortages, and its quality has been difficult to satisfy the requirement of Electric furnace steel making, because direct-reduced iron is pure and stable components because of quality, become the desirable furnace charge and the indispensable thinner of alternative steel scrap, smelting high-quality steel and special steel.Therefore, since the 1950's, the direct-reduced iron production development is rapid, and 21 century, direct-reduced iron production has become one of focus of world steel industrial development.Because the energy consumption of smelter accounts for the 15%-25% of industrial sector energy consumption, therefore, waste heat recovery energy-saving and cost-reducing and direct-reduced iron is extremely important.The high temperature direct-reduced iron of discharging in the direct reduction furnace is conveyed into the molten bath of electric melting furnace rapidly, is one of energy-saving scheme of direct-reduced iron novel process in recent years.The practice explanation, temperature has only 1000 ℃ hot reduced iron to go into stove, goes into stove with cold reduced iron and compares, ton iron economize on electricity 250～300KWh.
At present, generally providing the equipment of pyritous hot reduced iron to the electric furnace molten bath is to adopt heat-stable chain bucket elevator, drag conveyer, heat-stable minute hopper and star feeder combination, finishes from reduction furnace to the electric furnace feed.Yet production practice prove, promote because this chain-bucket equipment is open type, the star feed, the apron conveyor operation, integral device is complicated heavy, work-ing life is short, and adopting open conveying, high-temperature dust and thermal pollution are very serious, cause investment huge, water power consumption consumption is high, the running cost height, the reduced iron heat waste is more, does not reach the heat recovery energy-saving and the environmental requirement of expection.
The utility model content
Be supplied to the shortcoming and defect of furnace equipment at existing high temperature direct-reduced iron, the utility model provides a kind of beyond example novel flow-dividing control device in the world, this device adopts multiple spot flow-dividing control feed principle, utilize the diffusing shape material of high temperature reduction iron under certain slope, to have the characteristic of deadweight gravity flow, automatically split into the multiply materials flow by controlled flashboard, multiple spot is distributed into each discharging point of electric melting furnace, simplified transportation equipment, these two operations of direct reduction and electric furnace are fused, the reduced iron high-temperature residual heat is directly utilized, thereby improve the smelting capacity of electric furnace, improve output and operating rate.
Flow-dividing control device to electric furnace supplying high temperature direct-reduced iron of the present utility model comprises reduction furnace 9, receives from the chute 1 and the electric melting furnace 10 of the diffusing shape high temperature direct-reduced iron of reduction furnace output, described chute 1 downward-sloping setting makes described reduced iron can produce gravity flow by deadweight under certain slope; To first step splitter 2, be used for the controlled flashboard of materials flow in first step splitter 2 that receives split into the multiply material.Material-dividing groove 5 is used for second stage splitter 8 is introduced in the sub-thread materials flow from first step splitter 2.Cloth tube 6 is used for respectively and will supplies with described electric melting furnace 10 from the per share materials flow that is introduced into through material-dividing groove 5 of splitter.Flange 3 and pad 4 are installed between chute 1, first step splitter 2, second stage splitter 8 material-dividing grooves 5 and the cloth tube 6, with they airtight linking together, realize that the airtight insulation of reduced iron materials flow transmits.
The utility model device also comprises second stage splitter 8, is used for the per share materials flow that is introduced into through material-dividing groove 5 from first step splitter 2 is split into 2 strands of material again, finally supplies with the movable loading point of described electric melting furnace 10 through cloth tube 6.
Described chute 1 inner chamber size determines that according to the globule size and the materials flow amount of blanking width, material the gradient of chute 1 is determined according to the flowability of reduced iron, should be improved 8～15 ° greater than the moving angle of rest (repose) of powder; The length of chute 1 is according to carrying horizontal throw and drop height to determine through actual computation.At chute 1, first step splitter 2, second stage splitter 8, all to be equipped with on the material-dividing groove 5 and to check cleaning eye 7, it is made by steel sheet and insulating refractory, which is provided with eye hole, is used for observing at any time the mobility status of reduced iron.And can manually manually take off and install.Describedly be used to connect chute 1, first step splitter 2, second stage splitter 8, the pad 4 between the flange 3 of material-dividing groove 5, cloth tube 6 is that the resilient material of, anti-electrostatic high temperature resistant by a kind of energy, absorption thermal expansion is made.
The utility model device does not need power, technology is simple and direct, and device is light and handy practical, and stream number of share of stock amount and per share materials flow amount can arbitrarily be adjusted manually, less investment, running cost is low, airtight operation, and no dust is to the pollution of environment, system's good heat insulating, can keep the reduced iron heat preferably, recycle the physics heat of reduced iron, reduce the electrosmelting power consumption.
Description of drawings
Fig. 1 is the synoptic diagram that is divided into 4 strands flow-dividing control device first embodiment to 1 of electric furnace supplying high temperature direct-reduced iron of the present utility model.
Fig. 2 is the synoptic diagram that is divided into 6 strands flow-dividing control device second embodiment to 1 of electric furnace supplying high temperature direct-reduced iron of the present utility model.
Fig. 1 adopts identical label with the corresponding component with identical function shown in Fig. 2, and the art-recognized meanings of these labels is:
1, chute; 2, first step splitter; 3, flange; 4, pad; 5, material-dividing groove;
6, cloth tube; 7, check cleaning eye; 8, second stage splitter; 9, reduction furnace;
10, electric melting furnace.
Embodiment
Below in conjunction with the specific embodiment of Fig. 1 and Fig. 2, describe the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron of the present utility model for example in detail.Device of the present utility model is not limited to specifying of following examples shown in the drawings.
The utility model device is made up of reduction furnace 9, electric melting furnace 10, chute 1, first step splitter 2, flange 3, pad 4, material-dividing groove 5, cloth tube 6, inspection cleaning eye 7 and second stage splitter 8.From the diffusing shape material of reduction furnace 9 effusive high temperature reduction iron, through having the chute 1 introducing first step splitter 2 that certain slope is installed, so, first step splitter 2 will be 2～3 bursts of materials flows from reduction furnace 9 effusive 1 strand of high temperature reduction iron charge diverting flow, Fig. 1 is that 1 strand of high temperature reduction iron charge diverting flow is the embodiment of 2 bursts of materials flows, and Fig. 2 is that 1 strand of high temperature reduction iron charge diverting flow is the embodiment of 3 bursts of materials flows.Described these materials flows are introduced second stage splitter 8 through material-dividing groove 5, and per share material is divided into 2 strands of material, falls into each movable loading point of electric melting furnace 10 by cloth tube 6.Adopt the utility model device, 1 strand of high temperature reduction iron charge stream is divided into 4 strands of material (as shown in Figure 1) or 6 strands of material (as shown in Figure 2), has realized quick multiple spot cloth.Flange 3 and pad 4 are installed between chute, splitter, material-dividing groove, the cloth tube, realize that the rapid sealing insulation of reduced iron materials flow transmits.
The utility model device is by being provided with airtight chute in the reduction furnace exit, utilize gravity, make the high temperature direct-reduced iron under the effect of deadweight, from the chute pipeline that tilts, flow into splitter, a plurality of flashboards are shunted under the extradition of angles in splitter, reduced iron is split into the multiply materials flow automatically by material-dividing groove 5, and per share materials flow is gone into the specified zone of electric furnace by cloth tube 6 drainages.
In the embodiment of the utility model device, establish the main element of 1～2 manual flashboard in the first step splitter 2 as shunting, regulate the flashboard opening angle, the reduced iron of the hopper 1 that can flow automatically in the future is divided into 2～3 strands.Second stage splitter 8 is to adopt the main element of 1 flashboard as shunting.Flashboard is made by the high-grade heat-resistant wear resisting steel, can be competent at 800～1050 ℃ long term high temperature operation, flashboard is the section form in a fine stern garden of sub-material for the benefit of, their turning axle is a hollow structure, can air-cooled or water-cooled, the flashboard angle of revolution is 0～150 °, and manually there is the calibration control device splitter outside on the turning handle, by manual operation.
For checking the mobile and liner wear pattern of reduced iron in hopper, the splitter, and necessary cleaning, on chute 1, first step splitter 2, material-dividing groove 5, all be equipped with and check cleaning eye 7, by opening and closing manually, it is made by steel sheet and insulating refractory, which is provided with eye hole, be used for observing at any time the mobility status of reduced iron.And can manually manually take off easily and install.
Connect with flange 3 between chute 1, first step splitter 2 and second stage splitter 8, material-dividing groove 5, the cloth tube 6,3 of flanges are equipped with heat-resisting, anti-electrostatic, can absorb the pad 4 that the resilient material of thermal expansion is made into.
The utility model device also is applicable to the flow-dividing control of low-temperature reduction iron, comprises that the multiple spot of hot wafering, cold pelletizing reduced iron, the right lump ore reduced iron adding of cold day electric furnace is reinforced.Similarly, also applicable to the allied equipment of non-ferrous metal metallurgy.In addition, according to principle of the present utility model, one total materials flow can be divided into 2 strands or 3 strands, can realize the materials flow of 2-9 thigh after the combination, each burst materials flow amount can arbitrarily be controlled, less investment, running cost is low, can reduce investment outlay more than 80%, reduce working cost more than 90%, and maintenance is convenient, and economical and practical, the heat of reduced iron gets the efficient use.
Claims (10)
1, a kind of flow-dividing control device to electric furnace supplying high temperature direct-reduced iron comprises reduction furnace (9), receives from the chute (1) and the electric melting furnace (10) of the diffusing shape high temperature direct-reduced iron of reduction furnace output, it is characterized in that:
The downward-sloping setting of described chute (1) makes described reduced iron can produce gravity flow by deadweight under certain slope;
First step splitter (2) is used for the controlled flashboard of materials flow in first step splitter (2) through chute (1) input split into 2～3 strands of material;
Material-dividing groove (5) is used for second stage splitter (8) is introduced in the sub-thread materials flow from first step splitter (2);
Cloth tube (6) is used for respectively and will supplies with the corresponding charging bole of described electric melting furnace (10) from the per share materials flow that is introduced into through material-dividing groove (5) of last step splitter;
Flange (3) and pad (4) are installed between chute (1), first step splitter and second stage splitter (2,8), material-dividing groove (5) and the cloth tube (6), with they airtight linking together, realize the airtight transmission of reduced iron materials flow.
2, the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron according to claim 1, it is characterized in that first step splitter (2) is to adopt the main element of 1～2 flashboard as shunting, flashboard is a section form in fine stern garden, be beneficial to sub-material, its turning axle is a hollow structure, can air-cooled or water-cooled, 0～150 ° of flashboard angle of revolution, manually there is the calibration control device splitter outside on the turning handle.
3, the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron according to claim 1, it is characterized in that described second stage splitter (8) is used for the per share materials flow that is introduced into through material-dividing groove (5) from first step splitter (2), split into 2 strands of material again, supply with the corresponding charging bole of described electric melting furnace (10) through cloth tube (6).
4, the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron according to claim 3, it is characterized in that second stage splitter (8) is to adopt the main element of 1 flashboard as shunting, flashboard is a section form in fine stern garden, be beneficial to sub-material, its turning axle is a hollow structure, can air-cooled or water-cooled, 0～150 ° of flashboard angle of revolution, manually there is the calibration control device splitter outside on the turning handle.
5, the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron according to claim 1, it is characterized in that first step splitter (2) and second stage splitter (8) made by the high-grade heat-resistant wear resisting steel that can be competent at the long term high temperature operation, be for the high-temperature bulk reduced iron custom-designed.
6, the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron according to claim 1, it is characterized in that described chute (1) inner chamber size is definite according to the materials flow amount, the gradient of chute (1) determines that according to the flowability of reduced iron the length of chute (1) is according to carrying horizontal throw and drop height to determine as calculated.
7, the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron according to claim 6, it is characterized in that the chute (1) and the inner chamber of material-dividing groove (5) are rectangle or square, in be lined with the heat-resistant and wear-resistant material that has heat insulation function concurrently, its shell is made by steel plate.
8, the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron according to claim 1 is characterized in that cloth tube (6) is by the high-grade heat-resistant wearable cast steel manufacturing that can be competent at the long term high temperature operation, and the cross section is circular.
9, the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron according to claim 1, it is characterized in that on chute (1), first step splitter (2), material-dividing groove (5), all being equipped with the inspection cleaning eye of making by steel sheet and insulating refractory (7), which is provided with eye hole, be used for observing at any time the mobility status of reduced iron.
10, the flow-dividing control device to electric furnace supplying high temperature direct-reduced iron according to claim 1, it is characterized in that the pad (4) between the described flange (3) that is used to connect chute (1), first step splitter (2), material-dividing groove (5), cloth tube (6), be by can be high temperature resistant, the resilient material of anti-electrostatic, absorption thermal expansion makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200061768U CN201186935Y (en) | 2008-02-18 | 2008-02-18 | Flow division control device for supplying electric stove with high temperature direct reduced iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200061768U CN201186935Y (en) | 2008-02-18 | 2008-02-18 | Flow division control device for supplying electric stove with high temperature direct reduced iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201186935Y true CN201186935Y (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200061768U Expired - Lifetime CN201186935Y (en) | 2008-02-18 | 2008-02-18 | Flow division control device for supplying electric stove with high temperature direct reduced iron |
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| Country | Link |
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| CN (1) | CN201186935Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041339A (en) * | 2010-12-30 | 2011-05-04 | 攀钢集团冶金工程技术有限公司 | Equipment and method for transferring thermal state directly reduced metal product |
| CN104386469A (en) * | 2014-10-11 | 2015-03-04 | 中冶天工集团有限公司 | Multi-station material proportioning swinging hopper and multi-station material proportioning method thereof |
| CN105563618A (en) * | 2016-02-24 | 2016-05-11 | 许正明 | Device for manufacturing stone by reducing smelting electric furnace slag |
-
2008
- 2008-02-18 CN CNU2008200061768U patent/CN201186935Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041339A (en) * | 2010-12-30 | 2011-05-04 | 攀钢集团冶金工程技术有限公司 | Equipment and method for transferring thermal state directly reduced metal product |
| CN104386469A (en) * | 2014-10-11 | 2015-03-04 | 中冶天工集团有限公司 | Multi-station material proportioning swinging hopper and multi-station material proportioning method thereof |
| CN105563618A (en) * | 2016-02-24 | 2016-05-11 | 许正明 | Device for manufacturing stone by reducing smelting electric furnace slag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN LOMON MINING + METALLURGY CO., LTD. Free format text: FORMER OWNER: SICHUAN LOMON GROUP CO., LTD. Effective date: 20091030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091030 Address after: Anning Industrial Park, Sichuan city of Panzhihua province Yanbian County zip code: 617100 Patentee after: Sichuan Lomon Mining & Metallurgy Co., Ltd. Address before: Sichuan city of Mianzhu Province Lu Xuan longmang group, zip code: 618200 Patentee before: Longmang Group Co., Ltd., Sichuan Prov |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090128 |
|
| CX01 | Expiry of patent term |