CN201128749Y - System for producing cold bonding block with steel making and steel rolling sludge - Google Patents
System for producing cold bonding block with steel making and steel rolling sludge Download PDFInfo
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- CN201128749Y CN201128749Y CNU200720190279XU CN200720190279U CN201128749Y CN 201128749 Y CN201128749 Y CN 201128749Y CN U200720190279X U CNU200720190279X U CN U200720190279XU CN 200720190279 U CN200720190279 U CN 200720190279U CN 201128749 Y CN201128749 Y CN 201128749Y
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Abstract
The utility model discloses a device system for cold-block consolidation though production of sludge production in steel making and rolling, consisting of a feeding device, a plurality of delivery devices, a drying device, a cooling device, s careening device, a mixing device and a molding device, etc.; the steel rolling scales are input in the 1<#> delivery device (1) through the hopper; the steelmaking sludge is input in the 2<#> delivery device through the hopper; the discharge hole of the 1<#> delivery device (1) is connected with the middle part of the 2<#> delivery device (2); the discharge hole of the 2<#> delivery device (2) is connected with the middle part of a 3<#> delivery device (3); the discharge hole of the 3<#> delivery device (3) is connected with the inlet orifice of a drying/cooling/screening integrated device (4); the utility model achieves high efficiency utilization of the sources of steel-making sludge and steel rolling scales. The utility model achieves short flow and high efficiency utilization of the steel-making sludge and the steel rolling sludge, and is characterized by the advantages of high throughput capacity, simple processing technology and low cost.
Description
Technical field
The utility model belongs to the recycling field of ferrous metallurgy sludge, relate to the device systems that utilizes steel-making and steel rolling mud to produce cold fixed type piece, refer more particularly to and utilize converter steelmaking OG mud and steel scale of steel rolling to be mixed with the device systems of cold fixed type piece as converter steelmaking slag former and refrigerant.
Background technology
Iron and steel enterprise produces a large amount of dust and mud in steelmaking process, 1 ton of steel of the every refining of iron and steel enterprise's converter steelmaking produces the ion dust mud contaning of 15-20kg, and its iron content and calcium are higher, are good steelmaking feeds.At present, the most of iron and steel enterprises of China as raw materials for sintering, deposit big problems but bof sludge is used for sintered material with steel making dust slime, major cause is its moisture height, and fine size can worsen the sintered material ventilation property, influence the SINTERING PRODUCTION technical indicator, sinter quality is descended.Simultaneously, these dirt mud are in transportation and have bad luck the easily new secondary pollution of generation in the process, influence cleaner production and resource recycling.Therefore, need the new Technology of exploitation to realize the harmless treatment and the recycling of steel making dust slime.
Relevant employing steel making dust slime is made the existing at home report of patent that steelmaking slag agent is made in cold fixed ball reuse steel-making.Patent (CN 99125177.6) discloses a kind of device systems of producing steelmaking slag agent with steel-making converter mud, dedusting steel-smelting converter mud with addition of fuel and annexation, is utilized and carries out sintering, fragmentation, screening after evenly mixing device, aging device and the shaped device compression moulding and make the steel-making composite slag.This method need be again through multiple working procedures such as sintering, fragmentation and screenings after adopting brick extruding machine and brick pressing machine that mud is pressed into base, the flow process complexity, and cost is higher.Patent (CN 1244708C) discloses the device systems of the fixed agglomeration of a kind of steel making dust slime cold high pressure, this patented technology is a raw material with moisture steel making dust slime greater than 8%, with polyvinyl formal, silica flour, black liquor etc. is binding agent, raw material at first is dried to moisture and is about 5-8%, temperature is not more than 80 ℃, prepare burden then, raw material is controlled at 100 with the binding agent proportioning: the ratio of 1-3 is carried out three roads and is mixed stirring, stir the back material and carry out high-pressure molding, the thing piece puts in storage after super-dry after the moulding, at last as steelmaking slag agent.In the disclosure patented technology owing to adopt the direct drying steel making dust slime, hot blast directly contacts with dried material, produce a large amount of high humidity flue dust dust of forming by water vapour, dust and flue gas, need supporting very complicated dust-removal system, and can produce new dirt dirt and dye problem, in production application, need to be optimized improvement.In addition and since this technology will be at first with the dried material moisture controlled at 5-8%, must handle through redrying after the moulding, cause the process system complexity, and waste energy and easily cause new dust secondary pollution, this also needs to be optimized improvement.Patent (CN 1070690A) discloses a kind of " method of dedusting steel-smelting converter mud balling-up ", in wet dirt mud, add lime powder after, mixing, digest, make ball, oven dry, screening as steelmaking slag agent.This method easily causes synthetic slag iron grade to reduce, and the result of use of synthetic slag descends.
Summary of the invention
In order to solve the deficiencies in the prior art, the utility model provides a kind of device systems that utilizes steel-making and steel rolling mud to produce cold fixed type piece, can effectively overcome the dust removal problem of dehumidification system and effectively avoid the secondary pollution problem.
The technical scheme that adopts of the present utility model is: steel scale of steel rolling enters the 1# handling equipment by hopper, and steel-smelting sewage sludge enters the 2# handling equipment by hopper; 1# handling equipment discharge port is connected with the middle part of 2# handling equipment; The discharge port of 2# handling equipment links to each other with the inlet of 3# handling equipment, and the discharge port of 3# handling equipment links to each other with dry, cooling, screening integrated apparatus feeding mouth; Drying, cooling, screening integrated apparatus discharge port link to each other with the feeding mouth of lift technique, the discharge port of lift technique links to each other with mixing device buffering feed bin feeding mouth, and the discharge port of mixing device buffering feed bin links to each other with the mixing device feeding mouth by metering device; Binding agent Storage Silo discharge port links to each other with pump intake, and the discharge port of pump links to each other with the opening for feed of mixing device; The discharge port of mixing device links to each other with shaper, and shaper outlet links to each other with chain and pan conveyor, and the discharge end of chain and pan conveyor is connected with the inlet of roller screen, and roller screen exports and is connected with finished product bin, finished product by automotive to steelshop.Described drying, cooling, screening integrated apparatus belong to the integrated apparatus that roller dryer, cylinder cooler and trommel screen extension set are connected by method hurdle dish, and this device is with one heart with changeing contact drying, cooling indirectly.Described lift technique can adopt chapelet or buried scraper lift and Pneumatic ash conveying machine.
Adopt this system, (1) at first presses uniform mixing by a certain percentage with steel-smelting sewage sludge and steel scale of steel rolling, mixes the back material and carries out drying treatment; (2) dried material with binding agent uniform mixing and directly coldmoulding, is made cold fixed type piece after the cooling screening; (3) cold fixed type piece adds in the converter in proportion, as the slag former and the refrigerant of converter steelmaking.Reach purpose energy-efficient, clean environment firendly, realize that the short flow process resource utilization of steel-making ion dust mud contaning and steel scale of steel rolling is efficiently utilized.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Fig. 1 is a system diagram of the present utility model.
Among the figure: the 1.1# handling equipment; 2.2# handling equipment; 3.3# handling equipment; 4. dry, cooling with sieve integrated apparatus; 5. lift technique; 6. mixing device cushions feed bin; 7. metering device; 8. mixing device; 9. binding agent Storage Silo; 10. pump; 11. shaper; 12. apron conveyor; 13. roller screen; 14. finished product bin; 15. steelshop.
Embodiment
As shown in fig. 1: steel scale of steel rolling enters 1# handling equipment 1 by hopper, and steel-smelting sewage sludge enters 2# handling equipment 2 by hopper; The middle part of 1# handling equipment 1 discharge port and 2# handling equipment 2 links; The inlet of the discharge port of 2 # handling equipment 2 and 3# handling equipment 3 links, and the discharge port of 3# handling equipment 3 links with dry, cooling, screening integrated apparatus 4 feeding mouths; Feeding mouth dry, that cool off, sieve integrated apparatus 4 discharge ports and lift technique 5 links, the discharge port of lift technique 5 links to each other with mixing device buffering feed bin 6 feeding mouths, and the discharge port of mixing device buffering feed bin 6 links by metering device 7 and mixing device 8 feeding mouths; Binding agent Storage Silo 9 discharge ports and pump 10 inlets link, and the opening for feed of the discharge port of pump 10 and mixing device 8 links; The discharge port of mixing device 8 links to each other with shaper 11, shaper 11 outlets link to each other with chain and pan conveyor 12, the discharge end of chain and pan conveyor 12 is connected with the inlet of roller screen 13, and roller screen 13 outlet is connected with finished product bin 14, finished product by automotive to steelshop 15.Described drying, cooling, screening integrated apparatus 4 belong to the integrated apparatus that roller dryer, cylinder cooler and trommel screen extension set are connected by method hurdle dish, this device is with one heart with changeing, contact drying, cooling indirectly, outlet mixture water ratio is less than 2%wt, temperature control is lower than 85 ℃, and the screen underflow granularity is controlled to be＜10mm.Described lift technique 5 can adopt chapelet or buried scraper lift and Pneumatic ash conveying machine, and this equipment work temperature is in 100 ℃.The binding agent ratio control that adopts is 6%-15%, and the binding agent kind is one or more and water glass, the algae soil in treated starch, coal tar, the coke tar refuse, one or more the combination in the slag fine powder.
With steel-smelting sewage sludge and the steel scale of steel rolling of handling certain factory is example: the device systems that adopts utilization steel-making that the utility model relates to and steel rolling mud to produce cold fixed type piece, with the steel-smelting sewage sludge of certain factory and steel scale of steel rolling by weight 20: 3 uniform mixing, material drying cooling screening back, mixing back and binding agent were by weight 100: 6 uniform mixing, cold fixed type piece is made in the direct coldmoulding of mixed material.The dry cooling screening of the mixture of steel scale of steel rolling and steel-smelting sewage sludge back mixture water ratio is less than 2%wt, and temperature control is lower than 85 ℃, and the screen underflow granularity is controlled to be＜10mm; The binding agent that adopts is a treated starch; The cold fixed type piece that obtains is that diameter is the oval ball of 15mm, and TFe content is greater than 50%, and ultimate compression strength is 1200N.The cold fixed type piece that will obtain through this system handles is added into slag former and the refrigerant of converter as converter steelmaking in the ratio of steel 5kg per ton, can be completely achieved the comprehensive treating process of steel-making OG mud and steel scale of steel rolling, and effect is remarkable:
1) steelmaking process operating environment, operating process, converter slag effect, cooling-down effect are not all produced detrimentally affect; By the detection to quality product and environmental pollution index, newly synthetic dissolving agent product can not cause product quality problem, does not produce new environmental pollution yet.
2) newly synthetic slag former product can substitute the part Ore Imported fully as the converter steelmaking slag, helps improving converter steelmaking slag speed.By steel-making OG mud and the direct rotary kiln steel-making of steel rolling iron scale, realized the plain short flow process recycle of iron, fundamentally changed the knot that in the past iron scale flashed back earlier, advanced blast furnace, enter the conventional iron plain long flow process recycling technology of converter at last from sintering again.
3) this device systems has that treatment capacity is big, complete processing is simple, low cost and other advantages.
Claims (3)
1. one kind is utilized steel-making and steel rolling mud to produce the device systems of cold fixed type piece, and it is characterized in that: steel scale of steel rolling enters 1# handling equipment (1) by hopper, and steel-smelting sewage sludge enters 2# handling equipment (2) by hopper; 1# handling equipment (1) discharge port is connected with the middle part of 2# handling equipment (2); The discharge port of 2# handling equipment (2) links to each other with the inlet of 3# handling equipment (3), and the discharge port of 3# handling equipment (3) links to each other with dry, cooling, screening integrated apparatus (4) feeding mouth; Drying, cooling, screening integrated apparatus (4) discharge port link to each other with the feeding mouth of lift technique (5), the discharge port of lift technique (5) links to each other with mixing device buffering feed bin (6) feeding mouth, and the discharge port of mixing device buffering feed bin (6) links to each other with mixing device (8) feeding mouth by metering device (7); Binding agent Storage Silo (9) discharge port links to each other with pump (10) inlet, and the discharge port of pump (10) links to each other with the opening for feed of mixing device (8); The discharge port of mixing device (8) links to each other with shaper (11), shaper (11) outlet links to each other with chain and pan conveyor (12), the discharge end of chain and pan conveyor (12) is connected with the inlet of roller screen (13), roller screen (13) outlet is connected with finished product bin (14), finished product by automotive to steelshop.
2. utilization steel-making according to claim 1 and steel rolling mud are produced the device systems of cold fixed type piece, it is characterized in that: described drying, cooling, screening integrated apparatus (4) connect as one by ring flange for roller dryer, cylinder cooler and trommel screen extension set, and this device is with one heart with changeing.
3. utilization steel-making according to claim 1 and steel rolling mud are produced the device systems of cold fixed type piece, it is characterized in that: described lift technique (5) can adopt chapelet or buried scraper lift or Pneumatic ash conveying machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720190279XU CN201128749Y (en) | 2007-11-21 | 2007-11-21 | System for producing cold bonding block with steel making and steel rolling sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720190279XU CN201128749Y (en) | 2007-11-21 | 2007-11-21 | System for producing cold bonding block with steel making and steel rolling sludge |
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| Publication Number | Publication Date |
|---|---|
| CN201128749Y true CN201128749Y (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU200720190279XU Expired - Fee Related CN201128749Y (en) | 2007-11-21 | 2007-11-21 | System for producing cold bonding block with steel making and steel rolling sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630534A (en) * | 2016-12-23 | 2017-05-10 | 广州大学 | Drying system for sludge treatment |
| CN110055412A (en) * | 2019-04-28 | 2019-07-26 | 广东飞南资源利用股份有限公司 | A kind of method of cupric tin electroplating sludge and desulfurized gesso of flue gas slag cooperative disposal and synthetical recovery copper and tin |
-
2007
- 2007-11-21 CN CNU200720190279XU patent/CN201128749Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630534A (en) * | 2016-12-23 | 2017-05-10 | 广州大学 | Drying system for sludge treatment |
| CN106630534B (en) * | 2016-12-23 | 2020-04-28 | 广州大学 | Drying system for treating sludge |
| CN110055412A (en) * | 2019-04-28 | 2019-07-26 | 广东飞南资源利用股份有限公司 | A kind of method of cupric tin electroplating sludge and desulfurized gesso of flue gas slag cooperative disposal and synthetical recovery copper and tin |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20161121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |