CN201648085U - Wastewater and scrap treatment system in steel production - Google Patents
Wastewater and scrap treatment system in steel production Download PDFInfo
- Publication number
- CN201648085U CN201648085U CN2009202727354U CN200920272735U CN201648085U CN 201648085 U CN201648085 U CN 201648085U CN 2009202727354 U CN2009202727354 U CN 2009202727354U CN 200920272735 U CN200920272735 U CN 200920272735U CN 201648085 U CN201648085 U CN 201648085U
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- waste water
- waste
- coking
- iron
- steel production
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Abstract
The utility model discloses a wastewater and scrap treatment system in steel production, which is provided with a waste liquid pump (2). The waste liquid pump (2) pumps coking wastewater generated by coking production equipment (1) into a red mud pond (3), wet type dedusting equipment (5) is provided with a settling pond (6), and the settling pond (6) is communicated with the red mud pond (3). By adopting the above technical scheme, the wastewater and scrap treatment system in steel production can completely recycle phenol-cyanogen wastewater containing toxic substances in coking process, comprehensively utilizes wastes, reduces environmental pollution, achieves the purpose of finally removing the waste, reduces fresh water usage, and is extremely small in occupation of an integral process, simple and reasonable in process and little in investment.
Description
Technical field
The utility model belongs to the technical field that metallurgical industry is produced, and relates to its coking, steel-making and ironmaking production technique, and more particularly, the utility model relates to waste water, the waste disposal system of Iron and Steel Production.
Background technology
Coking chemical waste water is the waste water that produces in raw coal high temperature carbonization, gas purification and Chemicals treating process, its main source has three: the one, and remained ammonia, it is the waste water that generates in the dry distillation of coal and coal gas cooling, its water yield accounts for the over half of coking chemical waste water total amount, is the main source of coking chemical waste water; The 2nd, the waste water that generates in the gas purification process divides dried up etc. as gas final cold water and crude benzol; The 3rd, in treating processes such as tar, crude benzol, reach the waste water that other occasion produces.Coking chemical waste water is the trade effluent that contains a large amount of Persistent organic pollutants, and its complicated component contains hazardous and noxious substances such as a large amount of phenol, cyanogen, benzene, ammonia nitrogen, and the coking chemical waste water of the discharging that exceeds standard causes serious pollution to environment.
At present, the wastewater treatment difficulty that contains objectionable impuritiess such as benzene, phenol, cyanogen that is produced in the coking production process is big, weak effect.In a lot of enterprises treatment facility, but do not move in order to save cost yet, caused the waste water that contains a large amount of objectionable impuritiess to efflux, contaminate environment and caused injury to the biology in the water body, this part waste water is difficult to handle really, particularly some small-sized coking plants can't up to standardly or clear-cut just not handled after the processing at all.
" red soil " viscosity that dedusting steel-smelting converter produces is big, and main component is Fe
2O
3, it is also difficult to handle moulding with pressure filter, often stops up filter cloth and causes equipment failure, and this material drippage everywhere is red a slice, and extremely difficult cleaning is very big to environmental influence.
The utility model content
First problem to be solved in the utility model provides a kind of waste water, waste disposal of Iron and Steel Production and utilizes method; its objective is the refuse of unmanageable waste water that produces in the coking production process and dedusting steel-smelting converter generation is combined comprehensive treating process; energy-saving and emission-reduction, the protection environment.
To achieve these goals, the technical scheme taked of the utility model is:
Waste water, the waste disposal of this Iron and Steel Production provided by the utility model are utilized method, be applied to coking production technology, steel-smelting production process, described coking production technology produces coking chemical waste water, in described steel-smelting production process, produces the waste material of red soil shape through wet dust removal technology;
Described coking chemical waste water pumps into the red soil pond by waste drains pump;
Described waste material through wet dust removal generation red soil shape, through the settling tank post precipitation, the throw out of its red soil shape enters the red soil pond;
Adopt the slag stock pump, with the mixture pump of the throw out of the red soil shape in the described red soil pond and coking chemical waste water to mixing and blending machine, with raw materials for sintering mixing stirring, formation sintering spice;
Described sintering spice is delivered to sinter machine and is carried out sintering, forms the sintering mineral aggregate.
Described sintering mineral aggregate is delivered to iron-smelting blast furnace as iron-smelting raw material, and the user that gives gas uses the blast furnace gas that described iron-smelting blast furnace produces.
The primary water that the waste material post precipitation produces in the described settling tank is back to steel-making converter, uses for the wet dust removal technology of wet-scrubbing equipment.
The sinter fume that described sinter machine produces discharges by the flue gas desulfurization device processing and after reaching emission standard.
Described coking production process using A-A-O method utilizes the method for biochemical and materialization comprehensive treating process that coking chemical waste water is handled, and the sewage after the processing reduces the content of phenol cyanogen.
Second problem to be solved in the utility model provides the waste water that is used to implement above-described Iron and Steel Production, the treatment system that waste disposal is utilized method, and its goal of the invention is identical with technique scheme.
Concrete technical scheme is:
Described treatment system comprises coking production equipment, is located at the wet-scrubbing equipment on the steel-making converter, establishes waste drains pump in this system, and described waste drains pump pumps into the red soil pond with the coking chemical waste water that coking production equipment produces; Described wet-scrubbing equipment is established settling tank, and described settling tank is communicated with the red soil pond.
Described treatment system is established the slag stock pump, and described slag stock pump is communicated with mixing and blending machine, and the discharge port of described mixing and blending machine is communicated with sinter machine.
Be provided with the device of carrying the sintering mineral aggregate between described sinter machine and the iron-smelting blast furnace.
The sinter fume venting port of described sinter machine is communicated with flue gas desulfurization device.
Described settling tank adopts mounted ramp type precipitator.
The utility model adopts technique scheme, integrate environmental protection, energy-conservation, finally can be by the processing of sintering to flue gas desulfurization technique, objectionable impurities is transformed into from water in the flue gas and iron-smelting blast furnace in, objectionable impurities is successively decreased step by step, and the wastewater containing phenol and cyanide that coking process is produced contains toxic substance all to be recycled, and waste is fully utilized, reduced pollution, reached the purpose of final removal environment; Reduced new water consumption simultaneously; Whole technology is taken up an area of very little, and technical process is simplified, and technology is simple, reasonable, less investment; Solve coking chemical waste water, steel-making " red soil " all the time and handled difficult problem.
Description of drawings
Below expressed content of this Figure of description and the mark among the figure are made brief description:
Fig. 1 is a structural representation of the present utility model.
Be labeled as among the figure:
1, coking production equipment, 2, waste drains pump, 3, the red soil pond, 4, steel-making converter, 5, wet-scrubbing equipment, 6, settling tank, 7, the slag stock pump, 8, mixing and blending machine, 9, sinter machine, 10, iron-smelting blast furnace, 11, the coal gas user, 12, flue gas desulfurization device.
Embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and principle of work, the manufacturing process of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present utility model structure expressed as Fig. 1, the utility model provides waste water, the waste disposal of Iron and Steel Production and utilizes method, and the treatment system of implementing this method.Described processing and utilizing method is applied to coking production technology, steel-smelting production process, and described coking production technology produces coking chemical waste water.
Because the wastewater containing phenol and cyanide that coking production technology produces contains toxic substance, intractability is big, adopts this treatment process all to recycle, and has reduced the pollution to environment, has reduced new water consumption simultaneously.Dedusting steel-smelting converter red soil viscosity is big, and it is difficult to handle, existing all recovery, and whole technology is taken up an area of very little.
Embodiment of the present utility model is that the production technique of this method is:
In described steel-smelting production process, produce the waste material of red soil shape through wet dust removal technology;
Described coking chemical waste water pumps into red soil pond 3 by waste drains pump 2;
Described waste material through wet dust removal generation red soil shape, through settling tank 6 post precipitations, the throw out of its red soil shape enters red soil pond 3;
Adopt slag stock pump 7, with the mixture pump of the throw out of the red soil shape in the described red soil pond 3 and coking chemical waste water to mixing and blending machine 8, with raw materials for sintering mixing stirring, formation sintering spice;
Described sintering spice is delivered to sinter machine 9 and is carried out sintering, forms the sintering mineral aggregate.
The red soil that utilizes efficient tilted plate separator to handle converter dust-removing after wastewater containing phenol and cyanide that the utility model produces coking production technology and the steel-making combines, and utilizes pipeline directly to carry the use for the user, and waste is fully utilized.
Described sintering mineral aggregate is delivered to iron-smelting blast furnace 10 as iron-smelting raw material, and the user that gives gas uses the blast furnace gas that described iron-smelting blast furnace 10 produces.
The primary water that the waste material post precipitation produces in the settling tank 6 is back to steel-making converter 4, uses for the wet dust removal technology of wet-scrubbing equipment 5.
The recycling of primary water has reduced new water consumption.Save a large amount of fresh waters, reduced production cost.
The sinter fume that sinter machine 9 described in the utility model produces discharges by flue gas desulfurization device 12 processing and after reaching emission standard.
By the processing of sintering to flue gas desulfurization technique, objectionable impurities is transformed into from water in the flue gas and iron-smelting blast furnace in, objectionable impurities is successively decreased step by step, finally accomplishes near zero release.
Coking production process using A-A-O method described in the utility model utilizes the method for biochemical and materialization comprehensive treating process that coking chemical waste water is handled, and the sewage after the processing reduces the content of phenol cyanogen.
The production technique of A-A-O method is made up of three sections biological treatment devices, and according to microorganism existence form difference, A-A-O technology comprises activated sludge process and biomembrance process again.This technology is passed through anaerobism, anoxic and aerobic three sections processing successively with pretreated waste water, and its characteristics are to increase the anaerobism section on the basis of general anoxic/aerobic process (A/O).The anaerobism section can be preferably to the sewage hydrolyzing acidifying, so that improve anoxic/aerobic processing efficiency (acidication impels the coking chemical waste water biodegradability to improve).This technology is the domestic biological denitrification process of advanced Treatment of Wastewater in Coking at present.
But above-mentioned utilization method biochemical and the materialization comprehensive treating process is handled coking chemical waste water, and the sewage after the processing still contains objectionable impuritiess such as phenol cyanogen.
Second problem to be solved in the utility model provides the waste water that is used to implement above-described Iron and Steel Production, the treatment system that waste disposal is utilized method, and its goal of the invention is identical with technique scheme.
Concrete technical scheme is:
Treatment system described in the utility model comprises coking production equipment 1, is located at the wet-scrubbing equipment 5 on the steel-making converter 4, establishes waste drains pump 2 in this system, and described waste drains pump 2 pumps into red soil pond 3 with the coking chemical waste water that coking production equipment 1 produces; Described wet-scrubbing equipment 5 is established settling tank 6, and described settling tank 6 is communicated with red soil pond 3.
Described treatment system is established slag stock pump 7, and described slag stock pump 7 is communicated with mixing and blending machine 8, and the discharge port of described mixing and blending machine 8 is communicated with sinter machine 9.
Be provided with the device of carrying the sintering mineral aggregate between sinter machine 9 described in the utility model and the iron-smelting blast furnace 10.The blast furnace gas that iron-smelting blast furnace 10 produces directly is sent to coal gas user 11 and uses.
The sinter fume venting port of described sinter machine 9 is communicated with flue gas desulfurization device.
Finally can be by the processing of sintering to flue gas desulfurization technique, from water, be transformed in the flue gas objectionable impurities and iron-smelting blast furnace in, and objectionable impurities successively decreases step by step, reaches the purpose of final removal.
The technical parameter of above-described treatment system:
1, on average reclaims 2 tons/hour of dedusting steel-smelting converter dry ash amounts;
2, from the volumetric concentration 30%～45% of the red soil of tilted plate separator discharging;
3, the concentration that is sent to the sintering spice by slag stock pump room is 5%～15%, on average per hour dilution with 13～16 tons of coking chemical waste waters;
4, being sent to the agglomerating pipeline specifications is Φ 219 * 8mm, the about 1030m of length;
5, slag stock pump lift 1.6MPa.
Described settling tank 6 adopts mounted ramp type precipitator.
Adopted and efficiently tiltedly pulled the direct delivery technology of settling vessel and pipeline, made technical process simplify.
The utility model technology integrates environmental protection, energy-conservation, and technology is simple, reasonable, and less investment has solved the problem of coking chemical waste water, steel-making " red soil " difficult treatment for a long time.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (5)
1. the waste water of an Iron and Steel Production, waste disposal system, comprise coking production equipment (1), be located at the wet-scrubbing equipment (5) on the steel-making converter (4), it is characterized in that: establish waste drains pump (2) in this system, described waste drains pump (2) pumps into red soil pond (3) with the coking chemical waste water that coking production equipment (1) produces; Described wet-scrubbing equipment (5) is established settling tank (6), and described settling tank (6) is communicated with red soil pond (3).
2. according to waste water, the waste disposal system of the described Iron and Steel Production of claim 1, it is characterized in that: described treatment system is established slag stock pump (7), described slag stock pump (7) is communicated with mixing and blending machine (8), and the discharge port of described mixing and blending machine (8) is communicated with sinter machine (9).
3. according to waste water, the waste disposal system of the described Iron and Steel Production of claim 2, it is characterized in that: be provided with the device of carrying the sintering mineral aggregate between described sinter machine (9) and the iron-smelting blast furnace (10).
4. according to waste water, the waste disposal system of the described Iron and Steel Production of claim 2, it is characterized in that: the sinter fume venting port of described sinter machine (9) is communicated with flue gas desulfurization device (12).
5. according to waste water, the waste disposal system of the described Iron and Steel Production of claim 1, it is characterized in that: described settling tank (6) adopts mounted ramp type precipitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202727354U CN201648085U (en) | 2009-12-16 | 2009-12-16 | Wastewater and scrap treatment system in steel production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202727354U CN201648085U (en) | 2009-12-16 | 2009-12-16 | Wastewater and scrap treatment system in steel production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201648085U true CN201648085U (en) | 2010-11-24 |
Family
ID=43113314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202727354U Expired - Lifetime CN201648085U (en) | 2009-12-16 | 2009-12-16 | Wastewater and scrap treatment system in steel production |
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| Country | Link |
|---|---|
| CN (1) | CN201648085U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734776B (en) * | 2009-12-16 | 2011-08-17 | 芜湖新兴铸管有限责任公司 | Method for processing and utilizing wastewater and waste material in steel production and processing system thereof |
| CN106191349A (en) * | 2016-07-26 | 2016-12-07 | 舞阳钢铁有限责任公司 | A kind of Iron industry waste water uses system and method at line generalization |
-
2009
- 2009-12-16 CN CN2009202727354U patent/CN201648085U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734776B (en) * | 2009-12-16 | 2011-08-17 | 芜湖新兴铸管有限责任公司 | Method for processing and utilizing wastewater and waste material in steel production and processing system thereof |
| CN106191349A (en) * | 2016-07-26 | 2016-12-07 | 舞阳钢铁有限责任公司 | A kind of Iron industry waste water uses system and method at line generalization |
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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: 20101124 Effective date of abandoning: 20091216 |