CN106011461A - Method for enabling phenol hydrogen sludge to participate in pellet ore proportioning - Google Patents
Method for enabling phenol hydrogen sludge to participate in pellet ore proportioning Download PDFInfo
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- CN106011461A CN106011461A CN201610513116.4A CN201610513116A CN106011461A CN 106011461 A CN106011461 A CN 106011461A CN 201610513116 A CN201610513116 A CN 201610513116A CN 106011461 A CN106011461 A CN 106011461A
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- phenol hydrogen
- phenol
- bentonite
- mud
- hydrogen sludge
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for enabling phenol hydrogen sludge to participate in pellet ore proportioning. Grain size of iron ore concentrate powder is 200 meshes and iron content is greater than 64%; grain size of bentonite powder is 200 meshes and content of phenol hydrogen sludge is greater than 95%; grain size of phenol hydrogen sludge is 200 meshes and content of phenol hydrogen sludge is greater than 80%; and the content (in percentage by weight) of the iron ore concentrate powder, the phenol hydrogen sludge and the bentonite is as follows: 95.0-98.0% of iron ore concentrate powder, 1.0-2.0% of the phenol hydrogen sludge and 2.0-3.0% of bentonite. According to the method, the phenol hydrogen sludge participates in pellet ore proportioning comprehensive utilization for iron-making, so that the comprehensive utilization problem of the phenol hydrogen sludge is effectively solved, resources are effectively utilized, and environmental pollution is reduced.
Description
Technical field
The invention belongs to metallurgical method, be also the method for a kind of solid waste material comprehensive utilization, refer specifically to a kind of phenol hydrogen dirty
Mud participates in the method that pelletizing joins ore deposit.
Technical background
The biochemical treatment of waste water is the polluter that the metabolism by microorganism processes in waste water, typically may be used
To be divided into two big classes, i.e. Aerobic Process for Treatment and anaerobic treatment.Aerobic Process for Treatment is to make good use of the new of oxygen animalcule under the effect of aeration
Pollutant in old metabolic activity removal waste water, the active sludge of common aerobic treatment process, CASS, CAST, SBR,
MBR, catalytic oxidation, the method such as oxidation ditch；Anaerobic treatment is to utilize the metabolism of anaerobe in the case of starvation
The pollutant in waste water are removed in effect, and common anaerobic technique has hydrolysis acidification, UASB, ABF, IC etc..
The main purpose of biological wastewater treatment has following 3 points: 1. flocculating and remove in waste water can not the colloid of natural sedimentation
Shape solids；2. Organic substance that is stable and that remove in waste water；3. nutrient nitrogen and phosphorus are removed.
Phenol hydrogen mud is that the biochemical waste water of coking processes the waste material produced in technical process, main containing in biochemical waste water process
Organic substance, reductive organic matter and inorganic matter of the pollutant that cannot remove such as difficult degradation etc., is formed after concentrating filter pressing
Mud cake.Phenol hydrogen mud is because ash height coking process cannot digest, and current national requirements for environmental protection is strict, also cannot externally discharge,
Require that enterprise realizes inner loop and utilizes.Coke-oven plant once carried out spraying for preventing dump by introducing coal yard outside phenol hydrogen sludge slurry
Airborne dust, but owing to the uniformity sprayed cannot be guaranteed, cause coke quality to fluctuate.For this reason, it may be necessary to other conjunction of research and probe
Suitable comprehensive Utilization Ways.
Summary of the invention
It is an object of the invention to provide a kind of phenol hydrogen mud and participate in the method that pelletizing joins ore deposit comprehensive utilization, make phenol hydrogen mud obtain
To effectively utilizing, and reduce pollution environment.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that
Phenol hydrogen mud participates in the method that pelletizing joins ore deposit, fine iron breeze granularity-200 mesh and iron content more than 64%；Bentonite powder
Degree-200 mesh content are more than 95%, and phenol hydrogen mud-200 mesh content is more than 80%, between fine iron breeze, phenol hydrogen mud, bentonite
Percentage by weight is: fine iron breeze 95.0-98.0%, phenol hydrogen mud 1.0～2.0%, bentonite 2.0～3.0%.
The present invention uses phenol hydrogen pressure filter mud to replace on-the-spot pelletizing concentrate on a small quantity, by changing bentonite ore ratio, investigating
Phenol hydrogen pressure filter mud adapted ratio is on quality of green pellets and the impact of ripe ball quality.Finally determine when bentonite consumption 2.5-3.0%
Time can filter mud 2% with addition of phenol hydrogen pressure, can filter mud 1% with addition of phenol hydrogen pressure bentonite consumption 2.0% when.
The beneficial effect of the invention: phenol hydrogen mud is used for participating in steel-making pelletizing and joins ore deposit comprehensive utilization, effectively by the present invention
Solve the problem of complex utilization of phenol hydrogen mud, decrease the pollution to environment simultaneously.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment: phenol hydrogen mud participates in the method that pelletizing joins ore deposit
The raw material used is pelletizing concentrate, phenol hydrogen pressure filter mud, the bentonite mixed.Mixing pelletizing concentrate, the filter dirt of phenol hydrogen pressure
Mud and bentonite are from Xiangtan Iron and Steel production scene, and material performance is shown in Tables 1 and 2:
The main physical and chemical indexes of table 1 pelletizing concentrate (%)
Table 2 bentonite physical and chemical indexes
Xiangtan Iron and Steel pelletizing essence belongs to the higher ore deposit of ferrous grade and disclosure satisfy that Shaft Furnace Pelletizing Process is to original basic demand.From grain
From the point of view of Du ,-200 mesh grain size contents are higher than 80%.Bentonite quality is general, and expansion capacity 3.0mL/g is in reduced levels.
Matching method: the used raw material of pelletizing is all by pelletizing after manually mixing.Dispensing is with 5kg iron-bearing material as base every time
Standard, bentonite is the most additional, when manually mixing, adds and a certain amount of pre-wets moisture, make mixture moisture low
In green-ball adequate moisture.
Pelletizing test is carried out in disc balling machine.Its important technological parameters is: a diameter of ∮ 1000mm, limit height H=
200mm, rotating speed 18r/min, inclination angle is 47 °.During pelletizing, every batch of material amount is 5kg.The green-ball made sieves through artificial, 10 ~
The green-ball of 13mm is qualified green-ball.Part its comprcssive strength of green-ball sampling and measuring, drop strength and green-ball moisture, remaining green-ball is used
Containment pockets saves backup oven test.
Oven test uses pipe type calciner, green-ball 10min preheating time, preheats temperature 900 DEG C.During green-ball roasting
Between 10min, sintering temperature 1250 DEG C.
Testing program: this test uses phenol hydrogen pressure filter mud to replace on-the-spot pelletizing concentrate on a small quantity, has investigated different bentonite
Proportioning, the on-the-spot pelletizing concentrate ratio impact on quality of green pellets of replacement.In whole process of the test, according to bentonite and two kinds of iron content
The difference of Raw Material Blending Ratio, has 4 schemes, refers to table 3.Result of the test is shown in Table 4.
Mix proportion scheme (%) tested by table 3
Table 4 result of the test
From table 4 result of the test: compare with benchmark, during bentonite ore ratio 3%, pelletizing concentrate adds the phenol hydrogen pressure filter of 2%
Mud is conducive to improving quality of green pellets, but pellet comprcssive strength can decline more.Main cause is that phenol hydrogen pressure filter mud is containing few
Amount viscosity Organic substance, beneficially pelletizing improve the intensity of green-ball, but after contained Organic substance roasting, vaporization at high temperature forms hole,
So comprcssive strength declines.
Example 2 reduce by 0.5% bentonite i.e. bentonite with addition of phenol hydrogen mud after 2.5% with addition of 2% time, quality of green pellets index and
Pellet strength is below reference scheme, although the phenol cementitious energy of hydrogen mud being described but bentonitic function can not being replaced, and roasting
The volatilization of burning process Organic substance forms hole, so comprcssive strength declines.
Example 3 reduce by 0.5% bentonite i.e. bentonite with addition of phenol hydrogen mud in after 2.5% with addition of 1% time, quality of green pellets index
Making moderate progress, ripe ball comprcssive strength is declined slightly.Illustrate to be conducive to improving quality of green pellets index with addition of the phenol hydrogen mud of 1%, but phenol
Hydrogen mud can not replace bentonitic function, and the volatilization of roasting process Organic substance forms hole, causes comprcssive strength to decline.
Conclusion (of pressure testing): phenol hydrogen pressure filter mud can be used for pelletizing production in right amount, and when not changing bentonite consumption, usage amount can
To reach 2%；In the case of reduction by 0.5% is bentonitic, usage amount can only control within 1%.
Claims (1)
1. phenol hydrogen mud participates in the method that pelletizing joins ore deposit, fine iron breeze granularity-200 mesh and Fe content more than 75%；Bentonite powder
Degree-200 mesh content are more than 95%, and phenol hydrogen mud-200 mesh content is more than 80%, it is characterised in that: fine iron breeze, phenol hydrogen mud, swollen
Percentage by weight between profit soil is: fine iron breeze 95-98, phenol hydrogen mud 1～2, bentonite 2.0～3.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513116.4A CN106011461A (en) | 2016-07-04 | 2016-07-04 | Method for enabling phenol hydrogen sludge to participate in pellet ore proportioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513116.4A CN106011461A (en) | 2016-07-04 | 2016-07-04 | Method for enabling phenol hydrogen sludge to participate in pellet ore proportioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106011461A true CN106011461A (en) | 2016-10-12 |
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ID=57105002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610513116.4A Pending CN106011461A (en) | 2016-07-04 | 2016-07-04 | Method for enabling phenol hydrogen sludge to participate in pellet ore proportioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106011461A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004076134A (en) * | 2002-08-21 | 2004-03-11 | Nippon Steel Corp | Method for pelletizing raw material for iron making |
| CN102409169A (en) * | 2010-09-25 | 2012-04-11 | 北京君致清科技有限公司 | Pellet ore binder prepared by taking sludge generated in sewage treatment as raw material |
| CN104060092A (en) * | 2013-09-24 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Biochemical sludge processing method |
-
2016
- 2016-07-04 CN CN201610513116.4A patent/CN106011461A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004076134A (en) * | 2002-08-21 | 2004-03-11 | Nippon Steel Corp | Method for pelletizing raw material for iron making |
| CN102409169A (en) * | 2010-09-25 | 2012-04-11 | 北京君致清科技有限公司 | Pellet ore binder prepared by taking sludge generated in sewage treatment as raw material |
| CN104060092A (en) * | 2013-09-24 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Biochemical sludge processing method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |
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| WD01 | Invention patent application deemed withdrawn after publication |