CN106755987A - Inexpensive short route sludge reclaims pressure ball new technology - Google Patents
Inexpensive short route sludge reclaims pressure ball new technology Download PDFInfo
- Publication number
- CN106755987A CN106755987A CN201611199574.1A CN201611199574A CN106755987A CN 106755987 A CN106755987 A CN 106755987A CN 201611199574 A CN201611199574 A CN 201611199574A CN 106755987 A CN106755987 A CN 106755987A
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- Prior art keywords
- sludge
- ball
- sewage
- drying
- processed
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Classifications
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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
-
- 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
- C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- 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)
- Treatment Of Sludge (AREA)
Abstract
The present invention provides a kind of inexpensive short route sludge and reclaims pressure ball new technology, comprises the following steps：Step 1：The collection treatment of sewage and flue gas：Including：The collection treatment and the collection of flue gas of sewage are processed；Step 2：Plaster cream processed；Plaster cream processed is comprised the following steps：d：Mixing cream processed：The pie sludge obtained in step 1 and dedusting ash are added into binding agent and is well mixed, obtain plaster cream；Wherein, pie sludge and the weight ratio of dedusting ash are 1：8.5 to 1：7.5；e：Drying：By Step d obtain plaster cream carry out drying and processing, after drying moisture control 10% to 15%, natural drying 35 hours after drying；Step 3：Pressure ball：The plaster cream that step 2 is obtained suppresses balling-up in ball press, and dries naturally 24 hours, obtains sludge ball；The moisture control of sludge ball is below 5% in this step, and strength control is not crushed can bear 500N pressure.
Description
Technical field
The present invention relates to the waste utilization technology in a kind of steelmaking process, more particularly to a kind of inexpensive short route is dirty
Mud reclaims pressure ball new technology.
Background technology
In the prior art, the byproduct sludge of steel mill generation, dedusting ash are used for sintered material, former technological process
For：Sludge, dedusting ash → sintering deposit → blast furnace（Molten iron）→ steel-making, technological process long process waste is big.In this regard, refining
Steel mill has attempted to reduce to be lost using various methods shortening flow use sludge and dedusting ash self-loopa, all fails effectively solution
Certainly.
The content of the invention
The shortcoming of prior art, returns it is an object of the invention to provide a kind of inexpensive short route sludge in view of the above
Pressure ball new technology is received, for solving above mentioned problem of the prior art.
In order to achieve the above objects and other related objects, a kind of inexpensive short route sludge recovery pressure ball of present invention offer is new
Technique, comprises the following steps：
Step 1：The collection treatment of sewage and flue gas：Including：The collection treatment and the collection of flue gas of sewage are processed；
Wherein,
The collection treatment of the sewage comprises the following steps：
a：The sewage produced during converter gas purification is slipped by sewage and is entered groove settling vessel and is carried out precipitation process；
b：Sewage after precipitation process is processed by filter press squeezing, pie sludge is obtained, the water content of pie sludge is less than
30%；
The collection treatment of the flue gas comprises the following steps：
c:By pipeline entering the flue gas produced during converter gas purification devaporizer and carrying out water drenching treatment, make
Bulky grain dust in flue gas is drenched and is settled down to cold ash silo, obtains dedusting ash；
Step 2：Plaster cream processed；
The plaster cream processed is comprised the following steps：
d：Mixing cream processed：The pie sludge obtained in step 1 and dedusting ash are added into binding agent and is well mixed, obtain plaster
Cream；Wherein, pie sludge and the weight ratio of dedusting ash are 1：8.5 to 1：7.5；
e：Drying：By Step d obtain plaster cream carry out drying and processing, after drying moisture control 10% to 15%, after drying from
So dry 3-5 hours；The purpose of the step is to improve the intensity of plaster cream.
Step 3：Pressure ball：The plaster cream that step 2 is obtained suppresses balling-up in ball press, and dries naturally 24 hours, obtains
Obtain sludge ball；The moisture control of sludge ball is below 5% in this step, and strength control is not crushed can bear 500N pressure.The step
The rapid sludge ball for obtaining as pneumatic steelmaking raw material.
Preferably, need to remove the large granule in dust in the step c of step 1, make Task-size Controlling in 1mm2Below；
I.e. the sieve aperture of 1mm × 1mm can be filtered.
Preferably, pie sludge and the weight ratio of dedusting ash are 1 in step 2：8..
Preferably, binding agent described in step 2 is bentonite, and the ratio that it accounts for plaster cream gross weight is 8% to 12%.
Preferably, the pressure of ball press selection is 13-15Mpa during pressure ball in step 3.
As described above, inexpensive short route sludge of the invention reclaims pressure ball new technology, have the advantages that：Contrast
Other ball press techniques, by adding adhesive, sludge and dedusting ash are mixed thoroughly according to a certain percentage, on 13-15MPa forcing presses
Compacting balling-up, the intensity that sludge dedusting ash ball is surveyed after logical steam drying reaches use requirement, and batch production is used in converter, energy
Produce a desired effect, sludge ball can equivalent substitution ore use.By shortening flow, byproduct sludge, dedusting ash enter steel-making
The cost that converter is used is greatly reduced.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages of the invention and effect easily.
Embodiment 1：
The present invention provides a kind of inexpensive short route sludge and reclaims pressure ball new technology, comprises the following steps：
Step 1：The collection treatment of sewage and flue gas：Including：The collection treatment and the collection of flue gas of sewage are processed；
Wherein,
The collection treatment of the sewage comprises the following steps：
a：The sewage produced during converter gas purification is slipped by sewage and is entered groove settling vessel and is carried out precipitation process；
b：Sewage after precipitation process is processed by filter press squeezing, pie sludge is obtained, the water content of pie sludge is less than
30%；
The collection treatment of the flue gas comprises the following steps：
c:By pipeline entering the flue gas produced during converter gas purification devaporizer and carrying out water drenching treatment, make
Bulky grain dust in flue gas is drenched and is settled down to cold ash silo, obtains dedusting ash；
Step 2：Plaster cream processed；
The plaster cream processed is comprised the following steps：
d：Mixing cream processed：The pie sludge obtained in step 1 and dedusting ash are added into bentonite and is well mixed, obtain plaster
Cream；Wherein, pie sludge and the weight ratio of dedusting ash are 1：10；The ratio that bentonite accounts for plaster cream gross weight is 8%.
e：Drying：The plaster cream that Step d is obtained is carried out into drying and processing, moisture control is in 10% to 15%, drying after drying
Natural drying 4 hours afterwards；The purpose of the step is to improve the intensity of plaster cream.
Step 3：Pressure ball：The plaster cream that step 2 is obtained suppresses balling-up in ball press, and dries naturally 24 hours, obtains
Obtain sludge ball；The moisture control of sludge ball is below 5% in this step, and strength control is not crushed can bear 500N pressure.This step
The pressure of ball press selection is 13Mpa during pressure ball in rapid.
The sludge ball that the step is obtained can be used as the raw material of pneumatic steelmaking.
Embodiment 2：The difference from Example 1 of embodiment 2 is：Bentonite accounts for the ratio of plaster cream gross weight in step 2
It is 10%；The pressure of ball press selection is 14Mpa in step 3.
Embodiment 3：The difference from Example 1 of embodiment 3 is：Bentonite accounts for the ratio of plaster cream gross weight in step 2
It is 12%；The pressure of ball press selection is 15Mpa in step 3.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
Into all equivalent modifications or change, should be covered by claim of the invention.
Claims (5)
1. a kind of inexpensive short route sludge reclaims pressure ball new technology, it is characterised in that comprise the following steps：
Step 1：The collection treatment of sewage and flue gas：Including：The collection treatment and the collection of flue gas of sewage are processed；
Wherein,
The collection treatment of the sewage comprises the following steps：
a：The sewage produced during converter gas purification is slipped by sewage and is entered groove settling vessel and is carried out precipitation process；
b：Sewage after precipitation process is processed by filter press squeezing, pie sludge is obtained, the water content of pie sludge is less than
30%；
The collection treatment of the flue gas comprises the following steps：
c:By pipeline entering the flue gas produced during converter gas purification devaporizer and carrying out water drenching treatment, make
Bulky grain dust in flue gas is drenched and is settled down to cold ash silo, obtains dedusting ash；
Step 2：Plaster cream processed；
The plaster cream processed is comprised the following steps：
d：Mixing cream processed：The pie sludge obtained in step 1 and dedusting ash are added into binding agent and is well mixed, obtain plaster
Cream；Wherein, pie sludge and the weight ratio of dedusting ash are 1：8.5 to 1：7.5；
e：Drying：By Step d obtain plaster cream carry out drying and processing, after drying moisture control 10% to 15%, after drying from
So dry 3-5 hours；
Step 3：Pressure ball：The plaster cream that step 2 is obtained suppresses balling-up in ball press, and dries naturally 24 hours, obtains dirty
Mud ball；The moisture control of sludge ball is below 5% in this step, and strength control is not crushed can bear 500N pressure；The step is obtained
Sludge ball as pneumatic steelmaking raw material.
2. inexpensive short route sludge according to claim 1 reclaims pressure ball new technology, it is characterised in that：In step 1
Need to remove the large granule in dust in step c, make Task-size Controlling in 1mm2Below；I.e. the sieve aperture of 1mm × 1mm can be filtered.
3. inexpensive short route sludge according to claim 1 reclaims pressure ball new technology, it is characterised in that：Cake in step 2
Shape sludge is 1 with the weight ratio of dedusting ash：8.
4. inexpensive short route sludge according to claim 1 reclaims pressure ball new technology, it is characterised in that：Institute in step 2
Binding agent is stated for bentonite, the ratio that it accounts for plaster cream gross weight is 8% to 12%.
5. inexpensive short route sludge according to claim 1 reclaims pressure ball new technology, it is characterised in that：Pressed in step 3
The pressure of ball press selection is 13-15Mpa during ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199574.1A CN106755987A (en) | 2016-12-22 | 2016-12-22 | Inexpensive short route sludge reclaims pressure ball new technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199574.1A CN106755987A (en) | 2016-12-22 | 2016-12-22 | Inexpensive short route sludge reclaims pressure ball new technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106755987A true CN106755987A (en) | 2017-05-31 |
Family
ID=58899518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611199574.1A Pending CN106755987A (en) | 2016-12-22 | 2016-12-22 | Inexpensive short route sludge reclaims pressure ball new technology |
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| Country | Link |
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| CN (1) | CN106755987A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628735A (en) * | 2019-02-14 | 2019-04-16 | 武汉科技大学 | The method for preparing cooled agglomerated pellet using revolving furnace mud |
| CN110293112A (en) * | 2019-06-12 | 2019-10-01 | 山东钢铁股份有限公司 | The reuse method of special steel dedusting ash and steel rolling greasy filth |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316531A (en) * | 2001-02-26 | 2001-10-10 | 莱钢集团矿山建设有限公司 | Cold-consolidated rusted cake containing iron dust |
| CN101519722A (en) * | 2009-03-25 | 2009-09-02 | 韶关市曲江盛大工业物资有限公司 | Method for utilizing iron containing metallurgical dust |
| CN101549530A (en) * | 2008-12-30 | 2009-10-07 | 重庆科技学院 | Fast-setting water-hardening sludge cold hardened pellet and preparation method thereof |
-
2016
- 2016-12-22 CN CN201611199574.1A patent/CN106755987A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316531A (en) * | 2001-02-26 | 2001-10-10 | 莱钢集团矿山建设有限公司 | Cold-consolidated rusted cake containing iron dust |
| CN101549530A (en) * | 2008-12-30 | 2009-10-07 | 重庆科技学院 | Fast-setting water-hardening sludge cold hardened pellet and preparation method thereof |
| CN101519722A (en) * | 2009-03-25 | 2009-09-02 | 韶关市曲江盛大工业物资有限公司 | Method for utilizing iron containing metallurgical dust |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628735A (en) * | 2019-02-14 | 2019-04-16 | 武汉科技大学 | The method for preparing cooled agglomerated pellet using revolving furnace mud |
| CN110293112A (en) * | 2019-06-12 | 2019-10-01 | 山东钢铁股份有限公司 | The reuse method of special steel dedusting ash and steel rolling greasy filth |
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Application publication date: 20170531 |