CN109777541A - A kind of method for producing water coal slurry - Google Patents
A kind of method for producing water coal slurry Download PDFInfo
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- CN109777541A CN109777541A CN201811580805.2A CN201811580805A CN109777541A CN 109777541 A CN109777541 A CN 109777541A CN 201811580805 A CN201811580805 A CN 201811580805A CN 109777541 A CN109777541 A CN 109777541A
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Abstract
The invention discloses a kind of method for producing water coal slurry, the raw material of the water-coal-slurry includes following components, and in parts by mass, preparing raw material includes 50-70 parts of water, 120-130 parts of coal dust, 1-10 parts of dispersing agent and 0.5-2 parts of stabilizer；Specific preparation method is the following steps are included: coal dust is once ground in S1, rod mill: 120-130 parts of coal dust being added in rod mill, starting rod mill grinds coal dust.Dispersing agent of the present invention is naphthalene system dispersing agent, dispersing agent in compared to the prior art, naphthalene system dispersing agent cost in the present invention is lower, dispersibility is more preferable with stability, device of the present invention is less simultaneously, and the equipment cost when present invention is implemented is effectively reduced, and whole preparation process is relatively simple, secondary filter can guarantee the final granularity of water-coal-slurry again, prevent the coal dust of bulky grain or other substances from influencing stability.
Description
Technical field
The present invention relates to COAL-WATER SLURRY TECHNOLOGY field, in particular to a kind of method for producing water coal slurry.
Background technique
Water-coal-slurry be by about 65% coal, 34% water and 1% a kind of low dirt for being obtained by Physical Processing of additive
Dye, high efficiency, can pipeline generation oily coal based fluid fuel, it changes the traditional combustion mode of coal, shows huge
Environmental protection and energy saving advantage, especially in recent years, after the technology path of waste resource recovery, the environment-protective water coal succeeded in developing
Slurry, can substantially increase the environmental benefit of water-coal-slurry under the premise of not increase expense, enrich the guarantor of coal resources in China
Under barrier, water-coal-slurry also has become most basic, the most economical clear energy sources of the energy such as substitution oil, gas.
Water-coal-slurry in the prior art causes preparation cost higher due to the defect of preparation method, at the same stability and
Dispersibility is not ideal enough, there are also being exactly that equipment used in preparation process is excessive, and preparation process is complex, not can guarantee
The granularity of final water-coal-slurry.
Therefore, it is necessary to solve the above problems to invent a kind of method for producing water coal slurry.
Summary of the invention
The purpose of the present invention is to provide a kind of method for producing water coal slurry, used dispersing agent is naphthalene system dispersing agent, phase
Compared with dispersing agent in the prior art, the naphthalene system dispersing agent cost in the present invention is lower, and dispersibility is more preferable with stability, leads to simultaneously
It crosses and the coal dust after primary grinding is back to the secondary grinding of rod mill progress, compared to ball mill, the use cost of rod mill is more
It is low, the equipment cost when present invention is implemented is effectively reduced, while device of the present invention is less, whole preparation process is more
Simply, secondary filter can guarantee the final granularity of water-coal-slurry again, prevent the coal dust of bulky grain or other substances from influencing to stablize
Property, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of method for producing water coal slurry, the water-coal-slurry
Raw material includes following components, and in parts by mass, preparing raw material includes 50-70 parts of water, 120-130 parts of coal dust, 1-10 parts of dispersing agent
With 0.5-2 parts of stabilizer；
Specific preparation method the following steps are included:
Coal dust is once ground in S1, rod mill: 120-130 parts of coal dust are added in rod mill, starting rod mill to coal dust into
Row grinding；
S2, coal dust sieving: the coal dust after primary grinding is filtered using sieve, the mesh size is less than or equal to 3mm；
Coal powder second is ground in S3, rod mill: the particle after sieving being less than or equal to 3mm and is added in rod mill again, again
Start rod mill and secondary grinding is carried out to the coal dust after sieving；
S4, coal dust weigh: by the taking-up in rod mill, then weighing 80-90 parts of coal dust；
Pulverized coal grinding in S5, ball mill: 80-90 parts of coal dust are added in ball mill and is ground；
S6, dispersing agent weigh: weighing 1-10 parts of dispersing agent, by mass percentage, the dispersing agent includes naphthalene sulfonate
60%, soda ash 10%, alkali lignin 30% and anhydrous sodium metasilicate 10%；
S7, dispersing agent are added: will be in 1-10 parts of dispersing agent 80-90 parts of the coal dusts being added in ball mill；
S8, stabilizer weigh: weighing 0.5-2 parts of stabilizer；
S9, stabilizer are added: by 0.5-2 parts of stabilizer in 50-70 parts of water 80-90 parts of the coal dusts being added in ball mill；
S10, mixed grinding: 80-90 parts of coal dust, 1-10 parts of dispersing agent and 0.5-2 parts of stabilizer are ground, milling time is set
It is set to 10-20 minutes, grinding temperature is set as 20-40 DEG C, and ripe mill water-coal-slurry solution is made；
S11, the sieving of ripe mill water-coal-slurry solution: ripe mill water-coal-slurry solution is filtered using sieve, the mesh size is less than
Equal to 2mm, finished product water-coal-slurry；
S12, water-coal-slurry solution one-time detection: using viscosity measurements equipment and Concentration Testing be set as respectively to finished product water-coal-slurry into
Row detection, when viscosity in aqueous coal slurries is less than or equal to 1200PaS, concentration is that 55% the above are one-time detection qualifications；
S13, water-coal-slurry solution secondary detection: standing 90 days in shady place for the water-coal-slurry of one-time detection qualification, no hardness precipitating
It is as final qualified.
Preferably, milling time is set as 30-40 minutes in the S1.
Preferably, milling time is set as 20-30 minutes in the S3.
Preferably, milling time is set as 10-20 minutes in the S5.
Technical effect and advantage of the invention:
1, in the present invention dispersing agent that uses for naphthalene system dispersing agent, compared to the prior art in dispersing agent, it is of the invention in naphthalene
It is that dispersing agent cost is lower, while dispersibility is more preferable with stability；
2, the present invention carries out secondary grinding by the way that the coal dust after primary grinding is back to rod mill, compared to ball mill, rod milling
The use cost of machine is lower, the equipment cost when present invention is implemented is effectively reduced, while device of the present invention is less, whole
Production procedure is relatively simple, and secondary filter can guarantee the final granularity of water-coal-slurry again, prevent bulky grain coal dust or its
He influences stability by substance.
Detailed description of the invention
Fig. 1 is overall flow structural schematic diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
The present invention provides a kind of method for producing water coal slurry as shown in Figure 1, the raw material of the water-coal-slurry includes following components, is pressed
Mass parts meter, preparing raw material includes 50 parts of water, 120 parts of coal dust, 1 part of dispersing agent and 0.5 part of stabilizer；
Specific preparation method the following steps are included:
Coal dust is once ground in S1, rod mill: 120 parts of coal dust being added in rod mill, starting rod mill grinds coal dust
Mill, milling time are set as 30 minutes；
S2, coal dust sieving: the coal dust after primary grinding is filtered using sieve, the mesh size is less than or equal to 3mm；
Coal powder second is ground in S3, rod mill: the particle after sieving being less than or equal to 3mm and is added in rod mill again, again
Start rod mill and secondary grinding is carried out to the coal dust after sieving, milling time is set as 20 minutes；
S4, coal dust weigh: by the taking-up in rod mill, then weighing 80 parts of coal dust；
Pulverized coal grinding in S5, ball mill: 80 parts of coal dust are added in ball mill and is ground, milling time is set as 10 points
Clock；
S6, dispersing agent weigh: weighing 1 part of dispersing agent, by mass percentage, the dispersing agent includes naphthalene sulfonate 60%, pure
Alkali 10%, alkali lignin 30% and anhydrous sodium metasilicate 10%；
S7, dispersing agent are added: will be in 1 part of dispersing agent 80 parts of the coal dust being added in ball mill；
S8, stabilizer weigh: weighing 0.5 part of stabilizer；
S9, stabilizer are added: by 0.5 part of stabilizer in 50 parts of water 80 parts of the coal dusts being added in ball mill；
S10, mixed grinding: 80 parts of coal dust, 1 part of dispersing agent and 0.5 part of stabilizer are ground, milling time is set as 10 points
Clock, grinding temperature are set as 20 DEG C, and ripe mill water-coal-slurry solution is made；
S11, the sieving of ripe mill water-coal-slurry solution: ripe mill water-coal-slurry solution is filtered using sieve, the mesh size is less than
Equal to 2mm, finished product water-coal-slurry；
S12, water-coal-slurry solution one-time detection: using viscosity measurements equipment and Concentration Testing be set as respectively to finished product water-coal-slurry into
Row detection, when viscosity in aqueous coal slurries be less than or equal to 1200PaS, concentration be 55% the above are one-time detection qualification；
S13, water-coal-slurry solution secondary detection: standing 90 days in shady place for the water-coal-slurry of one-time detection qualification, no hardness precipitating
It is as final qualified.
It chooses the water-coal-slurry that 100 parts of above-mentioned technical proposals prepare and carries out one-time detection, 200 grams every part, final acceptance number
It is 95 parts, then carries out secondary detection, final acceptance number is 93 parts.
Embodiment 2
The present invention provides a kind of method for producing water coal slurry as shown in Figure 1, the raw material of the water-coal-slurry includes following components, is pressed
Mass parts meter, preparing raw material includes 60 parts of water, 125 parts of coal dust, 5 parts of dispersing agent and 1.3 parts of stabilizer；
Specific preparation method the following steps are included:
Coal dust is once ground in S1, rod mill: 125 parts of coal dust being added in rod mill, starting rod mill grinds coal dust
Mill, milling time are set as 35 minutes；
S2, coal dust sieving: the coal dust after primary grinding is filtered using sieve, the mesh size is less than or equal to 3mm；
Coal powder second is ground in S3, rod mill: the particle after sieving being less than or equal to 3mm and is added in rod mill again, again
Start rod mill and secondary grinding is carried out to the coal dust after sieving, milling time is set as 25 minutes；
S4, coal dust weigh: by the taking-up in rod mill, then weighing 85 parts of coal dust；
Pulverized coal grinding in S5, ball mill: 85 parts of coal dust are added in ball mill and is ground, milling time is set as 15 points
Clock；
S6, dispersing agent weigh: weighing 5 parts of dispersing agent, by mass percentage, the dispersing agent includes naphthalene sulfonate 60%, pure
Alkali 10%, alkali lignin 30% and anhydrous sodium metasilicate 10%；
S7, dispersing agent are added: will be in 5 parts of dispersing agent 85 parts of the coal dusts being added in ball mill；
S8, stabilizer weigh: weighing 1.3 parts of stabilizer；
S9, stabilizer are added: by 1.3 parts of stabilizer in 60 parts of water 85 parts of the coal dusts being added in ball mill；
S10, mixed grinding: 85 parts of coal dust, 5 parts of dispersing agent and 1.3 parts of stabilizer are ground, milling time is set as 15 points
Clock, grinding temperature are set as 30 DEG C, and ripe mill water-coal-slurry solution is made；
S11, the sieving of ripe mill water-coal-slurry solution: ripe mill water-coal-slurry solution is filtered using sieve, the mesh size is less than
Equal to 2mm, finished product water-coal-slurry；
S12, water-coal-slurry solution one-time detection: using viscosity measurements equipment and Concentration Testing be set as respectively to finished product water-coal-slurry into
Row detection, when viscosity in aqueous coal slurries is less than or equal to 1200PaS, concentration is that 55% the above are one-time detection qualifications；
S13, water-coal-slurry solution secondary detection: standing 90 days in shady place for the water-coal-slurry of one-time detection qualification, no hardness precipitating
It is as final qualified.
It chooses the water-coal-slurry that 100 parts of above-mentioned technical proposals prepare and carries out one-time detection, 200 grams every part, final acceptance number
It is 99 parts, then carries out secondary detection, final acceptance number is 99 parts.
Embodiment 3
The present invention provides a kind of method for producing water coal slurry as shown in Figure 1, the raw material of the water-coal-slurry includes following components, is pressed
Mass parts meter, preparing raw material includes 70 parts of water, 130 parts of coal dust, 10 parts of dispersing agent and 2 parts of stabilizer；
Specific preparation method the following steps are included:
Coal dust is once ground in S1, rod mill: 130 parts of coal dust being added in rod mill, starting rod mill grinds coal dust
Mill, milling time are set as 40 minutes；
S2, coal dust sieving: the coal dust after primary grinding is filtered using sieve, the mesh size is less than or equal to 3mm；
Coal powder second is ground in S3, rod mill: the particle after sieving being less than or equal to 3mm and is added in rod mill again, again
Start rod mill and secondary grinding is carried out to the coal dust after sieving, milling time is set as 30 minutes；
S4, coal dust weigh: by the taking-up in rod mill, then weighing 90 parts of coal dust；
Pulverized coal grinding in S5, ball mill: 90 parts of coal dust are added in ball mill and is ground, milling time is set as 20 points
Clock；
S6, dispersing agent weigh: weigh 10 parts of dispersing agent, by mass percentage, the dispersing agent include naphthalene sulfonate 60%,
Soda ash 10%, alkali lignin 30% and anhydrous sodium metasilicate 10%；
S7, dispersing agent are added: will be in 10 parts of dispersing agent 90 parts of the coal dusts being added in ball mill；
S8, stabilizer weigh: weighing 2 parts of stabilizer；
S9, stabilizer are added: by 2 parts of stabilizer in 70 parts of water 90 parts of the coal dusts being added in ball mill；
S10, mixed grinding: 90 parts of coal dust, 10 parts of dispersing agent and 2 parts of stabilizer are ground, milling time is set as 20 points
Clock, grinding temperature are set as 40 DEG C, and ripe mill water-coal-slurry solution is made；
S11, the sieving of ripe mill water-coal-slurry solution: ripe mill water-coal-slurry solution is filtered using sieve, the mesh size is less than
Equal to 2mm, finished product water-coal-slurry；
S12, water-coal-slurry solution one-time detection: using viscosity measurements equipment and Concentration Testing be set as respectively to finished product water-coal-slurry into
Row detection, when viscosity in aqueous coal slurries is less than or equal to 1200PaS, concentration is that 55% the above are one-time detection qualifications；
S13, water-coal-slurry solution secondary detection: standing 90 days in shady place for the water-coal-slurry of one-time detection qualification, no hardness precipitating
It is as final qualified.
It chooses the water-coal-slurry that 100 parts of above-mentioned technical proposals prepare and carries out one-time detection, 200 grams every part, final acceptance number
It is 96 parts, then carries out secondary detection, final acceptance number is 94 parts.
Following table can be obtained by above-described embodiment 1-3:
| Amount detection | Every part of weight | One-time detection acceptance number | Secondary detection acceptance number | |
| Embodiment 1 | 100 parts | 200 grams | 95 parts | 93 parts |
| Embodiment 2 | 100 parts | 200 grams | 99 parts | 99 parts |
| Embodiment 3 | 100 parts | 200 grams | 96 parts | 94 parts |
As seen from the above table:
Water-coal-slurry qualification rate highest made from all data in embodiment 2, while the dispersing agent used in the present invention is naphthalene system point
Powder, compared to the prior art in dispersing agent, the present invention in naphthalene system dispersing agent cost it is lower, while dispersibility and stability
More preferably；The present invention carries out secondary grinding by the way that the coal dust after primary grinding is back to rod mill, compared to ball mill, rod mill
Use cost it is lower, the equipment cost when present invention is implemented is effectively reduced, while device of the present invention is less, whole
Preparation process is relatively simple, and secondary filter can guarantee the final granularity of water-coal-slurry again, prevent bulky grain coal dust or other
Substance influences stability.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of method for producing water coal slurry, which is characterized in that the raw material of the water-coal-slurry includes following components, in parts by mass,
Preparing raw material includes 50-70 parts of water, 120-130 parts of coal dust, 1-10 parts of dispersing agent and 0.5-2 parts of stabilizer；
Specific preparation method the following steps are included:
Coal dust is once ground in S1, rod mill: 120-130 parts of coal dust are added in rod mill, starting rod mill to coal dust into
Row grinding；
S2, coal dust sieving: the coal dust after primary grinding is filtered using sieve, the mesh size is less than or equal to 3mm；
Coal powder second is ground in S3, rod mill: the particle after sieving being less than or equal to 3mm and is added in rod mill again, again
Start rod mill and secondary grinding is carried out to the coal dust after sieving；
S4, coal dust weigh: by the taking-up in rod mill, then weighing 80-90 parts of coal dust；
Pulverized coal grinding in S5, ball mill: 80-90 parts of coal dust are added in ball mill and is ground；
S6, dispersing agent weigh: weighing 1-10 parts of dispersing agent, by mass percentage, the dispersing agent includes naphthalene sulfonate
60%, soda ash 10%, alkali lignin 30% and anhydrous sodium metasilicate 10%；
S7, dispersing agent are added: will be in 1-10 parts of dispersing agent 80-90 parts of the coal dusts being added in ball mill；
S8, stabilizer weigh: weighing 0.5-2 parts of stabilizer；
S9, stabilizer are added: by 0.5-2 parts of stabilizer in 50-70 parts of water 80-90 parts of the coal dusts being added in ball mill；
S10, mixed grinding: 80-90 parts of coal dust, 1-10 parts of dispersing agent and 0.5-2 parts of stabilizer are ground, milling time is set
It is set to 10-20 minutes, grinding temperature is set as 20-40 DEG C, and ripe mill water-coal-slurry solution is made；
S11, the sieving of ripe mill water-coal-slurry solution: ripe mill water-coal-slurry solution is filtered using sieve, the mesh size is less than
Equal to 2mm, finished product water-coal-slurry；
S12, water-coal-slurry solution one-time detection: using viscosity measurements equipment and Concentration Testing be set as respectively to finished product water-coal-slurry into
Row detection, when viscosity in aqueous coal slurries is less than or equal to 1200PaS, concentration is that 55% the above are one-time detection qualifications；
S13, water-coal-slurry solution secondary detection: standing 90 days in shady place for the water-coal-slurry of one-time detection qualification, no hardness precipitating
It is as final qualified.
2. a kind of method for producing water coal slurry according to claim 1, it is characterised in that: milling time is set as in the S1
30-40 minutes.
3. a kind of method for producing water coal slurry according to claim 1, it is characterised in that: milling time is set as in the S3
20-30 minutes.
4. a kind of method for producing water coal slurry according to claim 1, it is characterised in that: milling time is set as in the S5
10-20 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811580805.2A CN109777541A (en) | 2018-12-24 | 2018-12-24 | A kind of method for producing water coal slurry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811580805.2A CN109777541A (en) | 2018-12-24 | 2018-12-24 | A kind of method for producing water coal slurry |
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| CN109777541A true CN109777541A (en) | 2019-05-21 |
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ID=66498135
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| CN201811580805.2A Pending CN109777541A (en) | 2018-12-24 | 2018-12-24 | A kind of method for producing water coal slurry |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201594A (en) * | 2019-06-27 | 2019-09-06 | 杜婧宇 | A kind of preparation method and preparation system of high fluidity and stability water-coal-slurry |
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| CN106867603A (en) * | 2017-02-28 | 2017-06-20 | 佛山市天亿化工有限公司 | A kind of sewage produces the additive of water-coal-slurry |
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| CN110201594A (en) * | 2019-06-27 | 2019-09-06 | 杜婧宇 | A kind of preparation method and preparation system of high fluidity and stability water-coal-slurry |
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Application publication date: 20190521 |