CN104711056A - High-concentration combusting water-coal-slurry preparation technology - Google Patents
High-concentration combusting water-coal-slurry preparation technology Download PDFInfo
- Publication number
- CN104711056A CN104711056A CN201510137684.4A CN201510137684A CN104711056A CN 104711056 A CN104711056 A CN 104711056A CN 201510137684 A CN201510137684 A CN 201510137684A CN 104711056 A CN104711056 A CN 104711056A
- Authority
- CN
- China
- Prior art keywords
- coal
- water
- slurry
- coal slurry
- water coal
- 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
Landscapes
- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention relates to a high-concentration combusting water-coal-slurry preparation technology. Impurities in water-coal-slurry can be removed through grinding, filtering, buffering and shearing; meanwhile, particle size distribution of the water-coal-slurry is optimized; over-grinding in the grinding process is prevented; the rheological property of the water-coal-slurry is improved; the viscosity of the water-coal-slurry is reduced; the water-coal-slurry is fully combusted; after being buffered and sheared, the stability of the water-coal-slurry is relatively good and the water-coal-slurry can be mixed more uniformly; the fluidity and the concentration are enhanced; and the water-coal-slurry is easy to store.
Description
Technical field
The present invention relates to a kind of high density metabolic water coal slurry pulping process.
Background technology
Coal water slurry is by carrying out grinding and filtering decon, the efficiency of combustion of coal water slurry can be improved, the coal water slurry particle diameter that existing water-coal-slurry slurring technique can be made is not good to joining, concentration is on the low side, particularly weak coal, long bituminous coal and steam coal, causes the metabolic water Slurry Combustion of preparation insufficient, easily stifled rifle, the pollutent severe overweights such as discharge exhaust gas dust, the commercial application that have impact on coal water slurry is promoted.
Summary of the invention
The present invention proposes a kind of metabolic water coal slurry pulping process, size grading optimization, metabolic water coal slurry that concentration is higher can be prepared.
For realizing this purpose, the method applied in the present invention is: a kind of high density metabolic water coal slurry pulping process, and described processing step is as follows:
(1) coal charge is carried out efficiency crushing, the coal charge of bulk is broken into fritter, take the coal charge after metered amount and enter in ball mill, and in ball mill, add water and dispersion agent;
(2) water and coal charge mix and grind by ball mill, make water and coal charge be mixed into metabolic water coal slurry primary water coal slurry, and primary water coal slurry flows into screen cloth and filters from ball mill exit;
(3) primary water coal slurry is stored in surge tank and carries out detection analysis after filtering, and qualified primary water coal slurry enters workshop section of sizing mixing, and underproof primary water coal slurry is then returned in ball mill by recovery and again grinds;
(4) in qualified primary water coal slurry, add stablizer, deliver in colour strainer after stirring for some time, flow to long-pending stock tank carry out secondary fine filtration in colour strainer after, obtain the secondary water coal slurry that particle is thinner;
(5), after secondary water coal slurry stablizes 30 ~ 60min by stirring in stabilizing machine, it is carried out high strength shearing by high shear intensified pump;
(6) finished product is become by flowing into refiner stirring 2 ~ 3h after the shearing of high shear intensified pump.
The content of described dispersion agent is 0.002 ~ 0.004 of coal feed weight, and weaker concn solid content is 17% ~ 19%.
The content of described stablizer is 0.0002 ~ 0.0004 of coal feed weight, and weaker concn solid content is 17% ~ 19%.
Its beneficial effect is: by grinding, filtration, buffering, shear, not only by the Impurity removal in coal water slurry, can optimize coal water slurry size distribution, what prevent in process of lapping is overground simultaneously, improve CWS Reological Properties energy, reduce viscosity in aqueous coal slurries, make its sufficient combustion, after cushioning and shearing, the stability of coal water slurry is better, mixing is more even, strengthens mobility and concentration, makes it easily store.
Embodiment
All features disclosed in this specification sheets, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this specification sheets (comprising any accessory claim, summary), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
The present invention proposes a kind of high density metabolic water coal slurry pulping process, be intended to make that slurry size grading is more optimized, the metabolic water coal slurry of good stability, good fluidity.Coal charge containing coal cinder is carried out efficiency crushing, makes it form uniform small-particle coal charge; Small-particle coal charge by carrying out computation weigh after steel coal hopper, and drops in ball mill; Be mixed into water and dispersion agent in ball mill, the weight of dispersion agent is 0.003 of coal feed weight; In ball mill, ball mill grinds coal charge and will be dispersed in preparation in water becomes primary water coal slurry; Primary water coal slurry carries out thick level filtration by screen cloth, enters in surge tank after elimination impurity; Primary water coal slurry carries out detection and analyzes in surge tank, and underproof coal water slurry is returned in ball mill by recovery and again grinds, and qualified coal water slurry then adds stablizer and stirs in surge tank, and the amount of stablizer is 0.0003 of coal feed weight; Primary water coal slurry after buffering is delivered in colour strainer and is stirred, and by the method for filtering under pressure in colour strainer, makes the particle secondary fine filtering in primary water coal slurry and becomes secondary water coal slurry, can meet burning spray gun nozzle needs like this; Secondary water coal slurry flows in long-pending stock tank, flows into stabilizing machine, carry out stirring 30 ~ 60min, water, coal, medicament are combined together in stabilizing machine by long-pending stock tank, and anti-sealing coal is separated; Secondary water coal slurry after stable is by the screw rod shearing of high shear intensified pump, reduce the viscosity of coal water slurry, its rheological is strengthened, and finally flowing into refiner stirring 2 ~ 3h becomes finished product coal water slurry, and cool water mixture burning efficiency is now high, good fluidity, be easy to transport, and good stability, be easy to store, directly directly can use stored in slurry can, or be delivered in conveyer by meter screw stem pump and carry.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (3)
1. a high density metabolic water coal slurry pulping process, is characterized in that, described processing step is as follows:
(1) coal charge is carried out efficiency crushing, the coal charge of bulk is broken into fritter, take the coal charge after metered amount and enter in ball mill, and in ball mill, add water and dispersion agent;
(2) water and coal charge mix and grind by ball mill, make water and coal charge be mixed into metabolic water coal slurry primary water coal slurry, and primary water coal slurry flows into screen cloth and filters from ball mill exit;
(3) primary water coal slurry is stored in surge tank and carries out detection analysis after filtering, and qualified primary water coal slurry enters workshop section of sizing mixing, and underproof primary water coal slurry is then returned in ball mill by recovery and again grinds;
(4) in qualified primary water coal slurry, add stablizer, deliver in colour strainer after stirring for some time, flow to long-pending stock tank carry out secondary fine filtration in colour strainer after, obtain the secondary water coal slurry that particle is thinner;
(5), after secondary water coal slurry stablizes 30 ~ 60min by stirring in stabilizing machine, it is carried out high strength shearing by high shear intensified pump;
(6) finished product is become by flowing into refiner stirring 2 ~ 3h after the shearing of high shear intensified pump.
2. high density metabolic water coal slurry pulping process according to claim 1, is characterized in that, the content of described dispersion agent is 0.002 ~ 0.004 of coal feed weight, and weaker concn solid content is 17% ~ 19%.
3. high density metabolic water coal slurry pulping process according to claim 1, is characterized in that, the content of described stablizer is 0.0002 ~ 0.0004 of coal feed weight, and weaker concn solid content is 17% ~ 19%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137684.4A CN104711056A (en) | 2015-03-26 | 2015-03-26 | High-concentration combusting water-coal-slurry preparation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137684.4A CN104711056A (en) | 2015-03-26 | 2015-03-26 | High-concentration combusting water-coal-slurry preparation technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104711056A true CN104711056A (en) | 2015-06-17 |
Family
ID=53410776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510137684.4A Pending CN104711056A (en) | 2015-03-26 | 2015-03-26 | High-concentration combusting water-coal-slurry preparation technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104711056A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111269737A (en) * | 2020-02-25 | 2020-06-12 | 兖矿水煤浆气化及煤化工国家工程研究中心有限公司 | Production method of micronized ultra-clean coal fuel liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042373A (en) * | 1988-10-31 | 1990-05-23 | 中国矿业大学北京研究生部 | Prepare water coal slurry fuel process with coal separating plant's duff |
| CN101956992A (en) * | 2010-09-06 | 2011-01-26 | 江苏秋林重工股份有限公司 | Low rank coal fuel coal water slurry and gasified coal water slurry complete production unit |
| CN103968407A (en) * | 2014-05-22 | 2014-08-06 | 江苏秋林重工股份有限公司 | Pulverized coal pulping equipment and pulping method thereof |
-
2015
- 2015-03-26 CN CN201510137684.4A patent/CN104711056A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042373A (en) * | 1988-10-31 | 1990-05-23 | 中国矿业大学北京研究生部 | Prepare water coal slurry fuel process with coal separating plant's duff |
| CN101956992A (en) * | 2010-09-06 | 2011-01-26 | 江苏秋林重工股份有限公司 | Low rank coal fuel coal water slurry and gasified coal water slurry complete production unit |
| CN103968407A (en) * | 2014-05-22 | 2014-08-06 | 江苏秋林重工股份有限公司 | Pulverized coal pulping equipment and pulping method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111269737A (en) * | 2020-02-25 | 2020-06-12 | 兖矿水煤浆气化及煤化工国家工程研究中心有限公司 | Production method of micronized ultra-clean coal fuel liquid |
| CN111269737B (en) * | 2020-02-25 | 2022-03-01 | 兖矿水煤浆气化及煤化工国家工程研究中心有限公司 | Production method of micronized ultra-clean coal fuel liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109569837B (en) | Crushing and grinding process for treating nickel-copper sulfide ore | |
| CN102765889B (en) | Preparation method for tailing barren rock-made high-strength concrete containing coal ash | |
| CN101928824B (en) | Sintered ore production method capable of reducing sintered solid fuel consumption and improving strength | |
| CN103214198B (en) | Cement production method | |
| CN105646113A (en) | Pulverized coal ammonium nitrate fuel oil explosive and preparation method and application thereof | |
| EP0130788B1 (en) | Process for producing a coal-water slurry | |
| JP5478988B2 (en) | Cement manufacturing method | |
| CN106622600A (en) | Powder grinding device | |
| CN109880663A (en) | A kind of low energy consumption is interrupted the water-coal-slurry and preparation method thereof of grain size distribution completely | |
| CN104711056A (en) | High-concentration combusting water-coal-slurry preparation technology | |
| CN107987905A (en) | A kind of method that dry and wet joint ore grinding prepares high concentration coal blending water-coal-slurry | |
| CN104402279A (en) | Preparation technology of tailing ultrafine powder used in cement mixture and concrete admixture | |
| CN104192451A (en) | Device and method for impacting mineral powder by adopting compressed gas to solve hardening of hopper mineral powder | |
| CN106987290B (en) | A method of improving pipeline transportation water-coal-slurry end product concentration | |
| CN107907391A (en) | Sampling machine for crushing and dividing minerals | |
| CN201762299U (en) | Complete set of equipment for producing coal water slurry fuel and gasification coal water slurry by low rank coal | |
| CN202045757U (en) | High-quality aggregate processing production equipment | |
| CN105950238A (en) | System for preparing coal water slurry | |
| CN107164005B (en) | A kind of water-coal-slurry and preparation method thereof | |
| CN203513619U (en) | Grain size distribution device for pulping cyclic shunting of water coal slurry | |
| CN101691927A (en) | Water coal slurry device and production process thereof | |
| CN207562817U (en) | A kind of system for improving pipeline transportation water-coal-slurry end product concentration | |
| CN101691926A (en) | Container moving type water-coal-slurry device and production process thereof | |
| RU2637119C2 (en) | Line for producing fine-dispersed coal-water slurry | |
| CN104190567B (en) | A kind of activity excitant atomising device for metal tailings grinding system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150617 |