CN107586575A - A kind of water charcoal slurry and preparation method - Google Patents
A kind of water charcoal slurry and preparation method Download PDFInfo
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- CN107586575A CN107586575A CN201711015970.9A CN201711015970A CN107586575A CN 107586575 A CN107586575 A CN 107586575A CN 201711015970 A CN201711015970 A CN 201711015970A CN 107586575 A CN107586575 A CN 107586575A
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Abstract
The present invention discloses a kind of water charcoal slurry and preparation method, water charcoal slurry main component of the present invention is semi-coke end, semi-coke wastewater and additive, and semi-coke end is respectively that 10%~20%, 10%~20% and 60%~80% proportioning mixes according to mass percent using three kinds of 100 mesh, 200 mesh and 300 mesh different grain sizes；The percentage by weight of water charcoal slurry total amount is 60%~70% shared by semi-coke end and semi-coke wastewater difference, the dispersion stabilizer that the phenols and grease type in additive and semi-coke wastewater are starched as water charcoal；Additive is the mixture of odium stearate and nonylphenol polyethylene oxide ether, and the percentage by weight of shared water charcoal slurry total amount is 1%~2%.The present invention is a kind of environmental protection, resource-type fuel.The present invention not only solves the technical barrier of the difficult application of semi-coke wastewater, expand semi-coke end utilization ways, greatly reduce the consumption to water resource, and propose the new approaches to the difficult water reuse of coal chemical industry, it is a kind of green energy resource preparation method, has great importance to the classification of existing coal resources, efficient, clean utilization.
Description
Technical field
The present invention relates to a kind of water charcoal slurry and preparation method, and in particular to using caused difficult in semi-coke production process
A kind of environmentally friendly, resource-type water charcoal slurry prepared by accessory substance semi-coke wastewater and semi-coke end.
Background technology
Semi-coke wastewater is that low temperature distillation produces caused difficult accessory substance during semi-coke in coal, mainly has two aspects
Source：First, dedusting washings, including coal is broken and dedusting washings in transportation, coke oven coal-charging or dedusting when the discharging of the coke are washed
Wash water and semi-coke shipment, the dedusting washings of screening and process engineering；Second, in destructive distillation, gas purification and semi-coke quenching process
The industrial wastewater of formation.Therefore, semi-coke wastewater composition predominantly has containing high-concentration suspension ickings, semi-coke particles thing, high concentration
Machine thing and inorganic matter, organic pollution are mainly the heterocyclic compound and coal tar of polycyclc aromatic compound, nitrogen, oxygen, sulphur
Class material, inorganic pollution mainly have sulfide, cyanide, ammonia nitrogen and rhodanide etc..Therefore, there is semi-coke wastewater composition to answer
Miscellaneous, the features such as pollutant concentration is high, colourity is high, toxicity is big, property is stable, be typically difficult treatment for reuse.At present at semi-coke wastewater
Reason mode using conventional two stages for the treatment of, that is, be exactly from high-concentration waste Water Sproading pollutant and pretreated harmless treatment,
But after two stages for the treatment of, do not reach discharging standards still, need advanced treating, but due to advanced treating high cost, cause
Entreprise cost increase.So usual semi-coke wastewater is only used for quenching after two stages for the treatment of or simple materialized pretreatment, cause dirt
It is gas phase to contaminate thing by liquid-phase conversion, causes the secondary pollution of environment.Therefore, scientific and reasonable utilization semi-coke wastewater can not only reduce
Environmental pollution, and greatly save the water resource of preciousness.
Semi-coke end is the semi-coke particles that granularity is less than 6mm, with micropore is more, particle diameter is small, light specific gravity, specific surface area are big and strong
The features such as poor is spent, in early days because price is relatively low, mainly takes the mode sold or directly discarded in stockpiling, incorporation fine coal to handle.
With furtheing investigate in recent years, a series of progress is obtained in different field, such as prepare coal briquette for civillan use using semi-coke end, prepare
Active carbon from coal, prepare combination electrode material and blast furnace blowing etc..With the maturation of low temperature distillation technology in fine coal and promote, it is blue
Charcoal end yield also increases, it is necessary to develop new utilization ways to consume increased semi-coke end yield year by year.
Water charcoal slurry be it is a kind of it is new and effective, cleaning coal based fluid fuel, not only can by pipeline, be easy to be atomized
And have a good combustibility, and high combustion efficiency, convenient storage, gas pollutant is easily controllable and discharge capacity is low, tool
There is good energy-conserving and environment-protective comprehensive benefit.Compared with water-coal-slurry, its maximum difference is to substitute fine coal using semi-coke end, is developed
The new way that semi-coke end utilizes.And how to solve due to semi-coke be not easy with water into slurry and semi-coke wastewater harmless treatment, and profit
The problem that water charcoal slurry is urgent need to resolve is prepared with semi-coke wastewater and semi-coke end.
The content of the invention
, should it is an object of the invention to provide a kind of water charcoal slurry and preparation method to solve problems of the prior art
Preparation method can utilize caused difficult accessory substance semi-coke wastewater in semi-coke end and semi-coke production process to prepare water charcoal slurry, be
A kind of environmental protection, resource-type water charcoal slurry preparation method.
Concrete technical scheme of the present invention is as follows：
A kind of water charcoal starches preparation method, comprises the following steps：
Step 1, varigrained semi-coke end is mixed according to certain grading ratio, obtains mixture A；
Step 2, mixture A and additive that step 1 obtains are sufficiently mixed, obtain mixture B；
Step 3, the mixture B that step 2 obtains is mixed with semi-coke wastewater, stir and obtain water charcoal slurry.
In the step 1, mixture A passes through three kinds of 100~200 mesh, 200~300 mesh and 300~400 mesh different grain sizes
Semi-coke end be mixed to get, wherein, be calculated in mass percent, the content of 100~200 mesh, 200~300 mesh and 300~400 mesh
Respectively 10%~20%, 10%~20% and 60%~80%.
The industry at the semi-coke end and elementary analysis such as table 1：
Table 1
In the step 2, it is calculated in mass percent, when mixture A is mixed to form mixture B with additive, mixture A
Addition be the 60%~70% of mixture B mass, the addition of additive is the 1%~2% of mixture B mass.
The additive is the compound of odium stearate and nonylphenol polyethylene oxide ether, according to volatile phenol composition in semi-coke wastewater
Compound component ratio is adjusted, when volatile phenol content in semi-coke wastewater<3000mg·L-1When, then odium stearate and polyoxyethylene nonyl phenyl
The mass ratio that ether adds is 0.5:1；When volatile phenol content is 3000~5000mgL in semi-coke wastewater-1When, then odium stearate and
The mass ratio of nonylphenol polyethylene oxide ether is 1:1；When volatile phenol content is in semi-coke wastewater>5000mg·L-1When, then odium stearate
It is more than 2 with the mass ratio of nonylphenol polyethylene oxide ether:1.
In the step 3, it is calculated in mass percent, in the mixture of mixture B and semi-coke wastewater, semi-coke wastewater contains
Measure as 28%~39%, remaining is mixture B；Semi-coke wastewater content calculates according to below equation：
Wherein：M-semi-coke wastewater quality, unit g；m1- semi-coke end quality, unit g；m2- additive quality, it is single
Position is g；C-water charcoal slurry mass concentration, unit %.
The semi-coke wastewater produces for dedusting washings and destructive distillation, gas purification and quenching process during production semi-coke
Waste water, the index analysis such as table 2 of semi-coke wastewater：
Table 2
| Oil/mgL-1 | Volatile phenol mgL-1 | COD/mg·L-1 | NH3-N/mg·L-1 | Colourity/times |
| 1000~1500 | 3000~5000 | 30000~40000 | 2500~3000 | 10000~30000 |
A kind of water charcoal slurry, is made by the above method, and the concentration of the water charcoal slurry is 60%~70%, and viscosity is 950~
1300MpaS, 6 days is stood without bleed, soft precipitation can be recovered by standing 22 days.
Compared with prior art, the present invention has the advantages that：
The present invention is then abundant by the mixture and additive using by the way that semi-coke end is mixed according to certain grading ratio
Mixing, then mixture and semi-coke wastewater are mixed evenly again and obtain water charcoal slurry, the coal tar oils thing in semi-coke wastewater
Matter can be considered suspending agent, after the phenol organic matter in semi-coke wastewater mixes with additive, can form good dispersant, therefore,
Traditional water is replaced with semi-coke wastewater, to prepare water charcoal slurry, not only solves the difficult application of semi-coke wastewater in semi-coke production process
Technical barrier, expand semi-coke end utilization ways, and greatly reduce the consumption to water resource.The present invention solves semi-coke
The technical barrier of the difficult application of semi-coke wastewater in production process, expands semi-coke end utilization ways, greatly reduces and water is provided
The consumption in source, preparation method of the present invention are a kind of environmental protection, resource-type water charcoal slurry preparation method.
Embodiment
The present invention is made with reference to specific example and being explained further.
The water charcoal slurry preparation method of the present invention is a kind of environmental protection, resource-type water charcoal slurry preparation method, is specifically utilized
Caused difficult accessory substance semi-coke wastewater prepares a kind of environmental protection, resource-type water charcoal slurry in semi-coke end and semi-coke production process, can
Applied to fields such as industry and boiler for domestic.Water charcoal slurry main component of the present invention is that the semi-coke of different grain size proportioning mixing is last, blue
Charcoal waste water and additive, the percentage by weight of water charcoal slurry total amount is 60%~70% wherein shared by semi-coke end, shared by semi-coke wastewater
The percentage by weight of water charcoal slurry total amount is 28%~39%, the percentage by weight of water charcoal slurry total amount shared by additive for 1%~
2%.
Semi-coke end be low rotten lump coal in low temperature distillation process, due to accessory substance or low caused by chemically and physically acting on
Product caused by rotten fine coal low temperature distillation process, the industry and elementary analysis at semi-coke end are shown in Table 1：
Table 1
Semi-coke wastewater is during semi-coke is produced caused by dedusting washings and destructive distillation, gas purification and quenching process
Waste water, the index analysis of semi-coke wastewater are shown in Table 2：
Table 2
| Oil/mgL-1 | Volatile phenol mgL-1 | COD/mg·L-1 | NH3-N/mg·L-1 | Colourity/times |
| 1000~1500 | 3000~5000 | 30000~40000 | 2500~3000 | 10000~30000 |
The method of the present invention specifically comprises the following steps：
Step 1, semi-coke is fully dried under the conditions of 100 DEG C, grind away processing is carried out in ball mill, screening process obtains
To 100 mesh, 200 mesh, the varigrained semi-coke end of 300 mesh, mix, be calculated in mass percent according to certain grading ratio, it is blue
In charcoal end, the contents of 100~200 mesh, 200~300 mesh and 300~400 mesh semi-cokes end is respectively 10%~20%, 10%~
20% and 60%~80%；
Step 2, the semi-coke end after grading in step 1 is sufficiently mixed with additive, obtains the mixed of semi-coke end additive
Compound, wherein, additive is the mixture of odium stearate and nonylphenol polyethylene oxide ether, according to semi-coke wastewater composition adjustment additive
The ratio of middle odium stearate and nonylphenol polyethylene oxide ether；
Step 3, the semi-coke end additive agent mixture of step 2 is mixed with semi-coke wastewater, is uniformly mixing to obtain the present invention
Described water charcoal slurry；
Semi-coke wastewater addition is added according to the concentration requirement starched water charcoal, and specific semi-coke wastewater addition is according to following
Formula calculates：
Wherein：M-semi-coke wastewater quality, unit g；m1- semi-coke end quality, unit g；m2- additive quality, it is single
Position is g；C-water charcoal slurry concentration, unit %；
In water charcoal slurry, the percentage by weight of water charcoal slurry total amount is 60%~70% shared by semi-coke end, water shared by semi-coke wastewater
The percentage by weight of charcoal slurry total amount is 28%~39%, and the percentage by weight of water charcoal slurry total amount is 1%~2% shared by additive.
For the present invention during water charcoal slurry is prepared, additive forms dispersant with the phenols in semi-coke wastewater and grease type,
Stable slurry is played a part of to water charcoal slurry.
The present invention solves the technical barrier of the difficult application of semi-coke wastewater in semi-coke production process, expands semi-coke end profit
With approach, the consumption to water resource is greatly reduced.
Embodiment
The Industrial Analysis and its elementary analysis (%) of semi-coke used in embodiment are shown in Table 3, and semi-coke wastewater index used is shown in Table 4：
Table 3
Table 4
| Oil/mgL-1 | Volatile phenol mgL-1 | COD/mg·L-1 | NH3-N/mg·L-1 | Colourity/times |
| 1300 | 4000 | 30500 | 2750 | 20500 |
Embodiment 1
It is 1 in mass ratio by odium stearate and nonylphenol polyethylene oxide ether:1 is compounded, and additive is made；Semi-coke sample is passed through
Cross broken, screening and obtain 100~200 mesh, the semi-coke end of three kinds of grades of 200~300 mesh and 300~400 mesh, finally prepare water charcoal
The method of slurry is specific as follows：It is calculated in mass percent, the grading mode of semi-coke sample is 100~200 mesh:200~300 mesh:300~
400 mesh are 20%:20%:60%, the total addition in semi-coke end be 100.00g, and additive addition be 1.67g, by semi-coke it is last with
Additive is sufficiently mixed.Then 65.00g semi-coke wastewater is added, is mixed, the water charcoal that concentration is 60% has been prepared
Starch product.After measured, the viscosity of obtained water charcoal slurry is 950MPaS, and stability is high and stands 6 days without bleed, stands 22 days
Soft precipitation can be recovered.
Embodiment 2
It is 1 in mass ratio by odium stearate and nonylphenol polyethylene oxide ether:1 is compounded, and additive is made；Semi-coke sample is passed through
Cross broken, screening and obtain 100~200 mesh, the semi-coke end of three kinds of grades of 200~300 mesh and 300~400 mesh, finally prepare water charcoal
The method of slurry is specific as follows：It is calculated in mass percent, the grading mode of semi-coke sample is 100~200 mesh:200~300 mesh:300~
400 mesh are 15%:15%:70%, the total addition in semi-coke end be 100.00g, and additive addition be 1.67g, by semi-coke it is last with
Additive is sufficiently mixed, and then adds 65.00g semi-coke wastewaters, is mixed, and the water charcoal that concentration is 60% is made and starches.This implementation
Water charcoal slurry good fluidity made from example, viscosity 1110MPaS, stability is high and stands 6 days without water suction, and standing 24 days can
Recover soft precipitation.
Embodiment 3
It is 1 in mass ratio by odium stearate and nonylphenol polyethylene oxide ether:1 is compounded, and additive is made；Semi-coke sample is passed through
Cross broken, screening and obtain 100~200 mesh, the semi-coke end of three kinds of grades of 200~300 mesh and 300~400 mesh, finally prepare water charcoal
The method of slurry is specific as follows：It is calculated in mass percent, the grading mode of semi-coke sample is 100~200 mesh:200~300 mesh:300~
400 mesh are 10%:10%:80%, the total addition in semi-coke end be 100.00g, and additive addition be 1.67g, by semi-coke it is last with
Additive is sufficiently mixed, and then adds 65.00g semi-coke wastewaters, is mixed, and the water charcoal slurry production that concentration is 60% is prepared
Product.Water charcoal manufactured in the present embodiment starches good fluidity, and viscosity 1180MPaS, stability is high and stands 6 days without water suction, quiet
Soft precipitation can be recovered by putting 25 days.
Embodiment 4
It is 1 in mass ratio by odium stearate and nonylphenol polyethylene oxide ether:1 is compounded, and additive is made；Semi-coke sample is passed through
Cross broken, screening and obtain 100~200 mesh, the semi-coke end of three kinds of grades of 200~300 mesh and 300~400 mesh, finally prepare water charcoal
The method of slurry is specific as follows：It is calculated in mass percent, the grading mode at semi-coke end is 100~200 mesh:200~300 mesh:300~
400 mesh are 10%:10%:80%, the total addition in semi-coke end be 100.00g, and additive addition be 3.34g, by semi-coke it is last with
Additive is sufficiently mixed；Then 63.33g semi-coke wastewater is added, is mixed, the water charcoal slurry production that concentration is 60% is prepared
Product.Water charcoal manufactured in the present embodiment starches good fluidity, and viscosity 1150MPaS, stability is high and stands 6 days without water suction, quiet
Soft precipitation can be recovered by putting 26 days.
Embodiment 5
It is 1 in mass ratio by odium stearate and nonylphenol polyethylene oxide ether:1 is compounded, and additive is made；Semi-coke sample is passed through
Cross broken, screening and obtain 100~200 mesh, the semi-coke end of three kinds of grades of 200~300 mesh and 300~400 mesh, finally prepare water charcoal
The method of slurry is specific as follows：It is calculated in mass percent, the grading mode at semi-coke end is 100~200 mesh:200~300 mesh:300~
400 mesh are 10%:10%:80%, the total addition in semi-coke end be 100.00g, and additive addition be 1.54g, by semi-coke it is last with
Additive is sufficiently mixed；Then 52.31g semi-coke wastewater is added, is mixed, the water charcoal slurry production that concentration is 65% is prepared
Product.Water charcoal manufactured in the present embodiment starches good fluidity, and viscosity 1250MPaS, stability is high and stands 6 days without water suction, quiet
Soft precipitation can be recovered by putting 26 days.
Embodiment 6
It is 1 in mass ratio by odium stearate and nonylphenol polyethylene oxide ether:1 is compounded, and additive is made；Semi-coke sample is passed through
Cross broken, screening and obtain 100~200 mesh, the semi-coke end of three kinds of grades of 200~300 mesh and 300~400 mesh, finally prepare water charcoal
The method of slurry is specific as follows：It is calculated in mass percent, the grading mode at semi-coke end is 100~200 mesh:200~300 mesh:300~
400 mesh are 10%:10%:80%, the total addition in semi-coke end be 100.00g, and additive addition be 1.43g, by semi-coke it is last with
Additive is sufficiently mixed；Then 41.42g semi-coke wastewater is added, is mixed, the water charcoal slurry production that concentration is 70% is prepared
Product.Water charcoal manufactured in the present embodiment starches good fluidity, and viscosity 1300MPaS, stability is high and stands 6 days without water suction, quiet
Soft precipitation can be recovered by putting 28 days.
Each embodiment prepares the technical indicator such as table 5 of water charcoal slurry：
Table 5
To sum up, the inventive method is using semi-coke as raw material, and semi-coke wastewater is solvent, adds a small amount of additive preparation and meets
It is required that water charcoal slurry, water charcoal slurry indices be satisfied by industrial requirements.The invention belongs to a kind of green energy resource preparation method, solves
The technical barrier of the difficult application of semi-coke wastewater, expands semi-coke end utilization ways, greatly reduces in semi-coke production process
Consumption to water resource, semi-coke Industrial Technical Progress and the classification of existing coal resources, efficient, clean utilization to China have weight
The meaning wanted.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although the present invention is entered with reference to embodiment
Go detailed description, it will be apparent to an ordinarily skilled person in the art that using the waste water of congruence property, such as coking chemical waste water etc.,
Semi-coke wastewater in the present invention is modified or equivalent substitution, without departure from the technology category of the inventive method, all should covered
Among the right of the inventive method.
Claims (8)
1. a kind of water charcoal starches preparation method, it is characterised in that comprises the following steps：
Step 1, varigrained semi-coke end is mixed according to certain grading ratio, obtains mixture A；
Step 2, mixture A and additive that step 1 obtains are sufficiently mixed, obtain mixture B；
Step 3, the mixture B that step 2 obtains is mixed with semi-coke wastewater, stir and obtain water charcoal slurry.
2. preparation method according to claim 1, it is characterised in that in the step 1, mixture A passes through 100~200
Mesh, 200~300 mesh and the varigrained semi-coke end of three kinds of 300~400 mesh are mixed to get, wherein, it is calculated in mass percent, 100
The content of~200 mesh, 200~300 mesh and 300~400 mesh is respectively 10%~20%, 10%~20% and 60%~80%.
3. preparation method according to claim 1 or 2, it is characterised in that the industry and elementary analysis at the semi-coke end are such as
Under：
4. preparation method according to claim 1, it is characterised in that in the step 2, mixture A mixes with additive
When forming mixture B, mixture A addition is the 60%~70% of mixture B mass, and the addition of additive is mixture
The 1%~2% of B mass.
5. the preparation method according to claim 1 or 4, it is characterised in that the additive is odium stearate and nonyl phenol
The compound of polyoxy ether, according to volatile phenol composition adjustment compound component ratio in semi-coke wastewater, when being volatilized in semi-coke wastewater
Phenol content<3000mg·L-1When, then the mass ratio of odium stearate and nonylphenol polyethylene oxide ether is 0.5:1；When being waved in semi-coke wastewater
It is 3000~5000mgL to send out phenol content-1When, then the mass ratio of odium stearate and nonylphenol polyethylene oxide ether is 1:1；When semi-coke is given up
Volatile phenol content is in water>5000mg·L-1When, then the mass ratio of odium stearate and nonylphenol polyethylene oxide ether is more than 2:1.
6. preparation method according to claim 1, it is characterised in that in the step 3, be calculated in mass percent, mix
In thing B and the mixture of semi-coke wastewater, the content of semi-coke wastewater is 28%~39%, and remaining is mixture B；Semi-coke wastewater content
Calculated according to below equation：
<mrow>
<mi>m</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mn>1</mn>
<mo>-</mo>
<mi>c</mi>
</mrow>
<mi>c</mi>
</mfrac>
<msub>
<mi>m</mi>
<mn>1</mn>
</msub>
<mo>-</mo>
<msub>
<mi>m</mi>
<mn>2</mn>
</msub>
</mrow>
Wherein：M-semi-coke wastewater quality, unit g；m1- semi-coke end quality, unit g；m2- additive quality, unit are
g；C-water charcoal slurry mass concentration, unit %.
7. the preparation method according to claim 1 or 6, it is characterised in that during the semi-coke wastewater is production semi-coke
Dedusting washings and destructive distillation, gas purification and waste water caused by quenching process, the index analysis of semi-coke wastewater are as follows：
8. a kind of water charcoal slurry, it is characterised in that water charcoal slurry passes through the preparation method system as described in claim 1-7 any one
, the concentration of the water charcoal slurry is 60%~70%, and viscosity is 950~1300MpaS, stands 6 days without bleed, stands 22 days
Soft precipitation can be recovered.
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| CN113213713A (en) * | 2021-06-08 | 2021-08-06 | 珠海中水环保科技有限公司 | Process for harmless resource utilization of high-concentration waste water |
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