CN106277705A - Process and the system of smelting furnace is returned in the direct mummification of pickling mud - Google Patents
Process and the system of smelting furnace is returned in the direct mummification of pickling mud Download PDFInfo
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- CN106277705A CN106277705A CN201610867687.8A CN201610867687A CN106277705A CN 106277705 A CN106277705 A CN 106277705A CN 201610867687 A CN201610867687 A CN 201610867687A CN 106277705 A CN106277705 A CN 106277705A
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- Prior art keywords
- mud
- pickling
- smelting furnace
- bar screen
- feeding end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005554 pickling Methods 0.000 title claims abstract description 49
- 238000003723 Smelting Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000010802 sludge Substances 0.000 claims abstract description 44
- 238000001035 drying Methods 0.000 claims abstract description 39
- 230000018044 dehydration Effects 0.000 claims abstract description 28
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000011282 treatment Methods 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims description 3
- 238000002036 drum drying Methods 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000013590 bulk material Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention discloses a kind of direct mummification of pickling mud and returns process and the system of smelting furnace, said method comprising the steps of: step 1: collect pickling sludge water, pickling sludge water is pressed and delivered to dehydration equipment；Step 2: the pickling sludge water of pressurized treatments is carried out processed；Mud after dehydration is pressed into sludge cake；Step 3: carry out drying process by sludge cake；Step 4: the sludge cake dried is carried out drying and processing；Step 5: use bar screen to carry out sifting sort according to the diameter of the sludge cake dried；Step 6: diameter is fallen less than the sludge cake sieve of rod spacing and is transported to high hopper to add smelting furnace when smelting；Step 7: will be unscreened drop out sludge cake be transported to the further hand breaking of laydown area process, store up；The present invention effectively reduces slag former consumption, reduces raw metal consumption, improves the recovery rate of metal, and not affects environment.
Description
Technical field
The present invention relates to a kind of direct mummification of pickling mud and return process and the system of smelting furnace.
Background technology
Rustless steel there will be the iron scale of black, yellow in the course of processing, in order to improve stainless outward appearance and resistance to
Radioactivity, the rustless steel after processing must carry out acid wash passivation process, and main purpose is to remove product after welding, high temperature process process
Raw iron scale, being allowed to bright as silver has light, and makes the surface after process form one layer of oxide-film with chromium as main matter, will not
Produce the erosion of secondary oxygen again, thus improve the surface corrosion quality of stainless steel products, extend system service life.
Along with the exhaustion day by day of resource and improving constantly of environmental requirement, iron and steel energy-saving and emission-reduction work faces choosing of sternness
War.The sludge quantity that acid-washing stainless steel produces accounts for the 3%～5% of stainless steel output, containing valuable metals such as Ni, Cr, Fe in mud
Element, contains CaF simultaneously2、CaO、SiO2、CaSO4Deng material.In recent years, to the minimizing of acid-washing stainless steel mud, innoxious,
The research of recycling treatment gets more and more, and is not only the needs of environmental conservation, is also the requirement of sustainable development, realizes especially following
The embodiment of ring economy.
Pickling mud does not contain only more CaF2, also containing a small amount of CaO simultaneously, fusing point is relatively low, necessarily
Furnace temperature under, the fusion temperature of flux is the lowest, and the degree of superheat is the highest, and mobility is the best, reaction be just proceeded more quickly, smelting can be returned
Stove replace fluorite to use as slagging agent.It addition, containing many metallics such as Fe, Cr, Ni etc. in mud, can improve
The recovery rate of iron of smelting furnace, reduces raw metal consumption.
At present, most domestic rustless steel manufacturer remains simple landfill of piling up and processes pickling mud；
This method simple and fast, with low cost, but this can cause large area land resource occupied, the most also environment is produced potential danger
Evil.
Summary of the invention
For the problems referred to above, the present invention provides the waste of a kind of effective minimizing acid-washing stainless steel mud and the pickling dirt of pollution
Process and the system of smelting furnace is returned in the direct mummification of mud.
For reaching above-mentioned purpose, the process of smelting furnace, described method are returned in the present invention a kind of pickling direct mummification of mud
Comprise the following steps:
Step 1: collect pickling sludge water, pickling sludge water is pressed and delivered to dehydration equipment；
Step 2: the pickling sludge water of pressurized treatments is carried out processed；Mud after dehydration is pressed into sludge cake；
Step 3: carry out drying process by sludge cake；
Step 4: the sludge cake dried is carried out drying and processing；
Step 5: use bar screen to carry out sifting sort according to the diameter of the sludge cake dried；
Step 6: diameter is fallen less than the sludge cake sieve of rod spacing and is transported to high hopper to add when smelting and smelting
Stove；
Step 7: will be unscreened drop out sludge cake be transported to the further hand breaking of laydown area process, store up.
It is also preferred that the left the flue gas produced in described step 4 is carried out dust removal process.
The present invention provides a kind of and returns smelting furnace process system for the direct mummification of pickling mud, and described system includes slag
Stock pump, at least one dehydration equipment, stockyard of pickling mud, loading transporting equipment, receiver bin, drying plant, bar screen, heap
Deposit district, blanking bin；
Described Pulp pump feeding mouth connects with mud pit, and dehydration equipment feeding end described in described Pulp pump discharging opening connects；
Described dehydration equipment discharge end and the first belt feeder and the second belt feeder feeding end connect, described first belt feeder and
Stockyard feeding end of described second belt feeder discharge end and described pickling mud is connected；
Described loading transporting equipment connects stockyard discharge end of described pickling mud and described receiver bin feeding end respectively；
Described receiver bin discharge end and the 3rd belt feeder feeding end connect, and described 3rd belt discharge end sets with described drying
Standby feeding end connects；
Described drying plant discharge end is connected with described bar screen feeding end, and the 4th belt feeder feeding end is arranged on described rod
Bar grizzl(e)y lower end；The lower mud of described bar screen sieve drops down onto feeding end on the 4th belt feeder, the discharge end of described 4th belt feeder and institute
State ground blanking bin feeding end to connect；Described ground blanking bin discharge end is connected with high hopper feeding end；Described high hopper discharging
End is connected with smelting furnace feeding end；
Described bar screen discharge end is connected with described district's feeding end of storing up.
It is also preferred that the left described dehydration equipment is filter press or belt filter press, described dehydration equipment is used for pickling mud
The solid-liquid separation of water, and the aqueous guarantee value of mud is 15%.
It is also preferred that the left described drying plant is rotary drum drying machine, three-cylinder drier or disk dehydrator；Described drying plant
Inclination angle is 0～5 °, and drying medium is coal gas or natural gas；The mud of described drying plant dries temperature≤700 DEG C, drying
Aqueous guarantee value≤3% of mud.
It is also preferred that the left described bar screen is electronic bar screen, the inclination angle 0 of described bar screen～5 °, the rod of described bar screen
Gap is 80mm, and double-amplitude is 11 ± 1mm.
It is also preferred that the left described receiver bin is fixedly connected with hopper wall vibrator.
It is also preferred that the left described drying plant upper end is also connected with dedusting pipeline, cyclone dust extractor and air-introduced machine in turn.
The system of smelting furnace is returned in the direct mummification of pickling mud of the present invention can effectively reduce the wave of acid-washing stainless steel mud
Take and pollute, the comprehensive utilization of mud can be realized again, improving the recovery rate of metal, reduce the mud impact on environment, have relatively
High economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is that smelting furnace system layout is returned in the direct mummification of pickling mud of the present invention；
Fig. 2 is A-A sectional view in Fig. 1；
Fig. 3 is B-B sectional view in Fig. 1.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
Embodiment 1
The process of smelting furnace is returned in the present embodiment a kind of pickling direct mummification of mud, said method comprising the steps of:
Step 1: collect pickling sludge water, by Pulp pump, pickling sludge water is pressed and delivered to dehydration equipment；
Step 2: the pickling sludge water of pressurized treatments is carried out processed by dehydration equipment；And by the mud after dehydration
It is pressed into sludge cake；
Step 3: sludge cake is placed on stockyard of pickling mud and carries out drying process；
Step 4: the sludge cake dried is carried out drying and processing by drying plant；
Step 5: use bar screen to carry out sifting sort according to the diameter of the sludge cake dried；
Step 6: diameter is fallen less than the sludge cake sieve of rod spacing and is transported to high hopper to add when smelting and smelting
Stove；
Step 7: bar screen is unscreened the sludge cake dropped out and is transported to laydown area further hand breaking process, stores up.
The flue gas produced in described step 4 is carried out dust removal process；The dust produced in drying plant is by air-introduced machine
Effect, removing dust pipeline 15 to cyclone dust extractor 10 is discharged after processing.
The present embodiment can effectively reduce slag former consumption, reduces raw metal consumption, improves the recovery rate of metal；By acidity
Returning smelting furnace after the direct mummification of mud, more traditional pellet forming process cost is lower；Realize the circulation after pickling sludge drying processes
Utilize, will not be to environmental effects.
Embodiment 2
The present embodiment provides the direct mummification of pickling mud of a kind of corresponding above-described embodiment process to return smelting furnace system,
Described system include Pulp pump 4, at least one dehydration equipment 3, stockyard of pickling mud, load transporting equipment 5, receiver bin 6,
Drying plant 8, bar screen 9, store up district, blanking bin 13；
Described Pulp pump 4 feeding mouth and mud pit UNICOM, described Pulp pump 4 discharging opening and described dehydration equipment 3 feeding end
Connect；
The discharging of described dehydration equipment 3 is connected by the first belt feeder 1 and the second belt feeder 2 feeding end；Described first belt
Stockyard feeding end of the discharge end of machine 1 and described second belt feeder 2 and described pickling mud is connected；
Described loading transporting equipment 5 connects stockyard discharge end of described pickling mud and described receiver bin 6 respectively
Feeding end；
Described receiver bin 6 discharge end and the 3rd belt feeder 7 feeding end connect；Described 3rd belt feeder 7 discharge end is with described
Drying plant 8 feeding end connects；
Described drying plant 8 discharge end is connected with described bar screen 9 feeding end, and the 4th belt feeder 12 feeding end is located at described
Bar screen 9 lower end；The lower mud of described bar screen 9 sieve drops down onto the 4th belt feeder 12 feeding end, described 4th belt feeder 12 discharge end
It is connected with described ground blanking bin 13 feeding end；Described ground blanking bin 13 discharge end is connected with high hopper feeding end；A described high position
Feed bin discharge end is connected with smelting furnace feeding end；
Described bar screen 9 discharge end is connected with described district's feeding end of storing up；
Described dehydration equipment 3 is filter press or belt filter press, described dehydration equipment 3 consolidating for pickling sludge water
Liquid separates, and the aqueous guarantee value of mud is 15%；
Described drying plant 8 is rotary drum drying machine, three-cylinder drier or disk dehydrator；Described drying plant 8 inclination angle
Being 0～5 °, drying medium is coal gas or natural gas；The mud of described drying plant dries temperature≤700 DEG C, the mud of drying
Aqueous guarantee value≤3%.
Described bar screen 9 is electronic bar screen, the inclination angle 0 of described bar screen 9～5 °, the rod gap of described bar screen 9
For 80mm, double-amplitude is 11 ± 1mm.
Described receiver bin 6 is fixedly connected with hopper wall vibrator 14；
The pressurization of pickling sludge water is delivered to described dehydration equipment 3 by the present embodiment Pulp pump 4, and described dehydration equipment 3 is by mud
The mud of dehydration to 15% and is pressed into sludge cake by dehydration；The sludge cake of compacting is by the first belt feeder 1 and the second belt feeder 2
Being transported to stockyard of described pickling mud dry, the mud after described loader 5 will dry a period of time is transported to described
Receiver bin 6, described receiver bin 6 is provided with hopper wall vibrator 14, it is ensured that mud can unload completely to the 3rd belt feeder 7, the 3rd skin
Mud is unloaded to described drying plant 8 by band machine 7 subsequently, and the mud after drying unloads automatically to described bar screen 9, described bar screen
The grating spacing of 9 is 80mm, and the upper mud landing of described bar screen 9 sieve is transported to the further hand breaking in stockyard and processes, stores up, sieve
Lower mud falls on the 4th belt feeder 12, and lower for sieve mud is transported to ground blanking bin 13 by described 4th belt feeder 12 subsequently, described
Dewatered sludge is transported to smelting shop high hopper to add in smelting furnace when smelting by ground blanking bin 13 bottom belt machine.
The present embodiment can effectively reduce waste and the pollution of acid-washing stainless steel mud, and the low cost that can realize again mud is combined
Close and utilize, have preferable economic benefit and social benefit.
Above, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with basis
Those skilled in the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, all should contain
Within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim is defined.
Claims (8)
1. the process of smelting furnace is returned in the direct mummification of pickling mud, it is characterised in that: said method comprising the steps of:
Step 1: collect pickling sludge water, pickling sludge water is pressed and delivered to dehydration equipment；
Step 2: the pickling sludge water of pressurized treatments is carried out processed；Mud after dehydration is pressed into sludge cake；
Step 3: carry out drying process by sludge cake；
Step 4: the sludge cake dried is carried out drying and processing；
Step 5: use bar screen to carry out sifting sort according to the diameter of the sludge cake dried；
Step 6: diameter is fallen less than the sludge cake sieve of rod spacing and is transported to high hopper to add smelting furnace when smelting；
Step 7: be transported to laydown area further hand breaking process by being unscreened the sludge cake dropped out, store up.
The process of smelting furnace is returned in a kind of direct mummification of pickling mud the most as claimed in claim 1, it is characterised in that: to described
The flue gas produced in step 4 carries out dust removal process.
3. smelting furnace system is returned in the direct mummification of pickling mud, it is characterised in that: described system include Pulp pump, at least one
Dehydration equipment, stockyard of pickling mud, load transporting equipment, receiver bin, drying plant, bar screen, store up district, bulk material ground
Blanking bin；
Described Pulp pump feeding mouth connects with mud pit, and dehydration equipment feeding end described in described Pulp pump discharging opening connects；
Described dehydration equipment discharge end and the first belt feeder and the second belt feeder feeding end connect, described first belt feeder and described
Stockyard feeding end of second belt feeder discharge end and described pickling mud is connected；
Described loading transporting equipment connects stockyard discharge end of described pickling mud and described receiver bin feeding end respectively；
Described receiver bin discharge end and the 3rd belt feeder feeding end connect, and described 3rd belt discharge end enters with described drying plant
Material end connects；
Described drying plant discharge end is connected with described bar screen feeding end, and the 4th belt feeder feeding end is arranged on described bar screen
Lower end；The lower mud of described bar screen sieve drops down onto the 4th belt feeder feeding end, the discharge end of described 4th belt feeder and described underground
Feed bin feeding end connects；Described ground blanking bin discharge end is connected with high hopper feeding end；Described high hopper discharge end and smelting
Furnace feeding end connects；
Described bar screen discharge end is connected with described district's feeding end of storing up.
4. smelting furnace system is returned in a kind of direct mummification of pickling mud, it is characterised in that: described dehydration equipment
For filter press or belt filter press, described dehydration equipment is for the solid-liquid separation of pickling sludge water, and the aqueous guarantee of mud
Value is 15%.
5. smelting furnace system is returned in a kind of direct mummification of pickling mud, it is characterised in that: described drying plant
For rotary drum drying machine, three-cylinder drier or disk dehydrator；Described drying plant inclination angle is 0～5 °, and drying medium is coal gas
Or natural gas；The mud of described drying plant dries temperature≤700 DEG C, aqueous guarantee value≤3% of mud of drying.
6. smelting furnace system is returned in a kind of direct mummification of pickling mud, it is characterised in that: described bar screen is
Electronic bar screen, the inclination angle 0 of described bar screen～5 °, the rod gap of described bar screen is 80mm, and double-amplitude is 11 ± 1mm.
7. smelting furnace system is returned in a kind of direct mummification of pickling mud, it is characterised in that: described receiver bin is solid
Determine connection and have hopper wall vibrator.
8. smelting furnace system is returned in a kind of direct mummification of pickling mud, it is characterised in that: described drying plant
Upper end is also connected with dedusting pipeline, cyclone dust extractor and air-introduced machine in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867687.8A CN106277705A (en) | 2016-09-29 | 2016-09-29 | Process and the system of smelting furnace is returned in the direct mummification of pickling mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867687.8A CN106277705A (en) | 2016-09-29 | 2016-09-29 | Process and the system of smelting furnace is returned in the direct mummification of pickling mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106277705A true CN106277705A (en) | 2017-01-04 |
Family
ID=57716752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610867687.8A Pending CN106277705A (en) | 2016-09-29 | 2016-09-29 | Process and the system of smelting furnace is returned in the direct mummification of pickling mud |
Country Status (1)
| Country | Link |
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| CN (1) | CN106277705A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107056012A (en) * | 2017-05-18 | 2017-08-18 | 中冶华天工程技术有限公司 | A kind of strand annealing process dries the method and system of pickling sludge |
| CN108796209A (en) * | 2017-04-26 | 2018-11-13 | 宝山钢铁股份有限公司 | A kind of processing of grinding roller sludge and utilize method |
| CN109231742A (en) * | 2018-11-19 | 2019-01-18 | 宝武集团环境资源科技有限公司 | A kind of processing method of acid sludge |
| CN111434783A (en) * | 2019-01-15 | 2020-07-21 | 宝山钢铁股份有限公司 | Slag former for electric furnace steelmaking and manufacturing method thereof |
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| WO1988003048A1 (en) * | 1986-10-29 | 1988-05-05 | Merai Josef | Process and installation for dewatering waste water sludge |
| CN1686877A (en) * | 2005-04-06 | 2005-10-26 | 西安建筑科技大学 | Dry treatment system for reclaimed sludge from steel converter |
| CN102417287A (en) * | 2011-10-17 | 2012-04-18 | 太仓天策多媒体设计有限公司 | Sludge treatment system and method |
| CN104312654A (en) * | 2014-10-16 | 2015-01-28 | 无锡华光锅炉股份有限公司 | Fuel sludge preparation device |
| CN204185500U (en) * | 2014-11-13 | 2015-03-04 | 酒钢集团吉瑞再生资源开发有限责任公司 | Stainless steel slag is dried, pneumatic separation device |
| CN206069676U (en) * | 2016-09-29 | 2017-04-05 | 中冶华天南京工程技术有限公司 | Smelting furnace system is returned in the direct mummification of pickling sludge |
-
2016
- 2016-09-29 CN CN201610867687.8A patent/CN106277705A/en active Pending
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| WO1988003048A1 (en) * | 1986-10-29 | 1988-05-05 | Merai Josef | Process and installation for dewatering waste water sludge |
| CN1686877A (en) * | 2005-04-06 | 2005-10-26 | 西安建筑科技大学 | Dry treatment system for reclaimed sludge from steel converter |
| CN102417287A (en) * | 2011-10-17 | 2012-04-18 | 太仓天策多媒体设计有限公司 | Sludge treatment system and method |
| CN104312654A (en) * | 2014-10-16 | 2015-01-28 | 无锡华光锅炉股份有限公司 | Fuel sludge preparation device |
| CN204185500U (en) * | 2014-11-13 | 2015-03-04 | 酒钢集团吉瑞再生资源开发有限责任公司 | Stainless steel slag is dried, pneumatic separation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796209A (en) * | 2017-04-26 | 2018-11-13 | 宝山钢铁股份有限公司 | A kind of processing of grinding roller sludge and utilize method |
| CN107056012A (en) * | 2017-05-18 | 2017-08-18 | 中冶华天工程技术有限公司 | A kind of strand annealing process dries the method and system of pickling sludge |
| CN109231742A (en) * | 2018-11-19 | 2019-01-18 | 宝武集团环境资源科技有限公司 | A kind of processing method of acid sludge |
| CN111434783A (en) * | 2019-01-15 | 2020-07-21 | 宝山钢铁股份有限公司 | Slag former for electric furnace steelmaking and manufacturing method thereof |
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