CN104629845A - Method for preparing biomass briquette by using oil sludge instead of forming binders - Google Patents
Method for preparing biomass briquette by using oil sludge instead of forming binders Download PDFInfo
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- CN104629845A CN104629845A CN201310574823.0A CN201310574823A CN104629845A CN 104629845 A CN104629845 A CN 104629845A CN 201310574823 A CN201310574823 A CN 201310574823A CN 104629845 A CN104629845 A CN 104629845A
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention provides a method for preparing a biomass briquette by using oil sludge instead of forming binders. The method is characterized by setting the parts by weight of raw materials: 50-70 parts of soft coal, 20-40 parts of oil sludge, 5-10 parts of pine wood, 2-4 parts of dispersing agents and 1-2 parts of curing agents, and during preparation, firstly crushing and screening soft coal and pine wood and reducing the viscosity of oil sludge and then mixing and stirring the components uniformly to prepare the biomass briquette by a dry hot pressing process. The method has the advantages that with the characteristic of high viscosity, the oil sludge is utilized instead of forming binders, so that on the one hand, harmless and resource utilization of the oil sludge is achieved, and on the other hand, the production cost of the briquette is saved and the production process is simplified; the produced briquette can be directly applied to boilers without drying treatment, thus improving the production efficiency of the briquette; the prepared briquette has excellent combustion performance, can meet the requirements of large boilers for the combustion performances of fuels, and is worthy of being popularized and applied in a wide range.
Description
Technical field
The invention belongs to clean coal technology field, particularly relate to the preparation method that a kind of greasy filth substitutes the biomass coal of molding adhesive.
Background technology
The energy is important component part indispensable in human lives, and national society's Economic development can not the mainstay of shortage especially.The energy carries out storing, transform and using in a different manner, mainly can be divided three classes: fossil energy, a renewable energy source nuclear energy.Have 80% to come from oil, Sweet natural gas, these three kinds of fossil energies of coal in the energy that current mankind uses, and China is as second-biggest-in-the-world energy expenditure state, the production and consumption of coal accounts for more than 75%, becomes coal production maximum in the world and country of consumption.Under the background that energy dilemma and environmental pollution are deepened day by day, need energy Green Transformation urgently.The coal resources how cleaning, efficiently, reasonably utilize China limited, have very important strategic importance and practical significance for the society of China and the Sustainable development of national economy.
Moulded coal is a kind of mode that Coal Clean burning utilizes, and be the important component part of Filter Tuber For Clean Coal, and the generation of biomass coal is significant to energy Green Transformation.Biomass coal makes full use of the advantage of coal and biomass self, have and economize on coal and the dual function of biomass for coal, can coal resource limited for China, especially low value coal high efficiency, purifying utilization, agriculture and forestry organic waste material resource utilization, recovery energy are a kind of clear energy sources products.Alternative coal, fuel oil, combustion gas, minimizing CO
2and SO
2quantity discharged, be solve China to fall apart one of ideal to topsoil, economic clean fuel of coal burning boiler, protection of the environment and save energy be all significant.In briquette molding process, binding agent plays the effect of " bridge ", be the crucial auxiliary material determining moulded coal kind and quality thereof, directly determining the indexs such as the cold strength of moulded coal, water-repellancy, thermostability and incendivity, is one of most important part in briquette production technique.At present, conventional binding agent has inorganic, organic and compound binding agent three class.Lime is found in research process, cement, the inorganicss such as clay make the moulded coal of binding agent, good sulfur fixation can be played, but the moulded coal ash content that there is processing is high, carbon content is low, the shortcomings such as easy fouling, organic binder bond is as pitch, coal tar, although the adhesive properties such as starch are better, but it is as important industrial chemicals, price is high and unfriendly to environment, the hot strength of moulded coal is poor, to compare using biomass as briquette binder mineral binder bond and part organic binder bond, its ash content is low, environmental friendliness, low price, but its forming pressure is higher, and shapingly easily to have a rebound afterwards, have impact on intensity and the water resistance of biomass coal.Therefore, the compound binding agent that mutually can make up single binding agent Shortcomings is adopted to be current briquetting process Developing mainstream.
Greasy filth is a kind of solid waste being rich in the thick shape of mineral oil high viscosity produced in oilfield process, because of the organism be harmful to the mankind and animals and plants containing a certain amount of benzene homologues, phenols etc., must carry out harmless treatment, its process is a great problem that restriction oil field environmental quality continues raising and sustainable economic development.Meanwhile, being rich in a large amount of hydro carbons in greasy filth, is the refuse in production, is also valuable secondary resource, therefore, recycling is carried out to greasy filth, not only can reclaim a large amount of energy, produce huge economic benefit, and meeting pollution abatement, produce very large environmental benefit.
Therefore; for the Energy Situation of China's present stage and the energy structure policy in China future; by the secondary resource greasy filth of turning waste into wealth, energy organism matter may be given birth to and primary energy source coal combines; the extensive recycling not being only greasy filth provides effective way; open new energy field; rationally make use of the energy efficiently, and alleviate energy dilemma, solve the deficiency that traditional industry moulded coal exists.
Summary of the invention
Technical problem to be solved by this invention is to provide the preparation method that a kind of greasy filth substitutes the biomass coal of molding adhesive, has the advantages that production efficiency is high, cost is low, refuse is innoxious.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of greasy filth substitutes the biomass of molding adhesive
The preparation method of moulded coal, is characterized in that comprising the following steps:
1) proportioning raw materials of moulded coal is set: bituminous coal 50 ~ 70 number, greasy filth 20 ~ 40 number, pine 5 ~ 10 number, dispersion agent 2 ~ 4 number, solidifying agent 1 ~ 2 number;
2) carry out crushing and screening process to bituminous coal and pine, make the particle diameter of bituminous coal at below 3mm, the particle diameter of pine is at below 5mm;
3) viscosity reduction process is carried out to greasy filth, make its viscosity drop be low to moderate 1200 ~ 1400mPas;
4) greasy filth after falling glutinous process, bituminous coal after crushing and screening, pine and solidifying agent are mixed in proportion, add in homogenizer, stir 8 ~ 12min, make it mix;
5) under dry method hot press forming technology, sludge containing biomass coal is made;
Above-mentioned portion rate is mass fraction.
As improvement, the crushing and screening process in described step 1) refers to and adopts jaw crusher that bituminous coal and pine are carried out fragmentation, then screens it with standard vibration sieve.
As improvement, described step 2) viscosity reduction process detailed process be: first greasy filth is carried out two-phase laminated flow, makes its water ratio reach below 75wt%, then under the effect of homogenizer, stir 20 ~ 40s, make its viscosity drop be low to moderate 2500 ~ 3000mPas; Then add dispersion agent in the greasy filth after above-mentioned stirring to stir, make the viscosity drop of greasy filth be low to moderate 1200 ~ 1400mPas.
As preferably, described dispersion agent is combined by the inorganic dispersant of the organic dispersing agent of 1 ~ 2 number and 1 ~ 2 number, and wherein organic dispersing agent is naphthalene sulfonic salt, and inorganic dispersant wine is stone acid potassium sodium.
Preferred again, described solidifying agent is magnesium oxide.
Compared with prior art, the invention has the advantages that:
1, utilize greasy filth to have molding adhesive that full-bodied characteristic substitutes moulded coal, greasy filth is made to achieve innoxious, recycling on the one hand, save molding adhesive on the other hand, save the production cost of moulded coal, and simplify briquette production technique, the moulded coal produced does not need can be applied directly to boiler through drying and processing, improves briquette production efficiency.
2, the method adopting physics and chemistry to combine carries out viscosity reduction process to greasy filth, makes greasy filth reach better mobility.
3, in greasy filth, magnesium oxide curing agent is added, increase on the one hand moulded coal ratio of briquetting and shaping after compressive property, the solidifying agent added on the other hand can also react with the oxysulfide that produces in Coal Briquettes Combustion, play the effect of solid sulphur, decrease the use of sulphur-fixing agent, create environmental effect.
4, the sludge containing biomass coal that obtains of the present invention, has excellent combustionproperty through overtesting, close with loose coal combustion performance, can meet the requirement of large-sized boiler to fuel combustion performance; In addition, can be how body formed during this Combustion of Mould Coal, increase Combustion of Mould Coal surface-area, improve the intensity of combustion of moulded coal.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Case study on implementation 1:
(1) the weight ratio composition setting raw material is: bituminous coal 60 number, greasy filth 30 number, pine 5 number, dispersion agent 3 number, magnesium oxide curing agent 2 number; Wherein dispersion agent is organic dispersing agent naphthalene sulfonic salt and the 2 number inorganic dispersant Seignette salts of 1 number;
(2) utilize jaw crusher that bituminous coal and pine are carried out fragmentation, then screen it with standard vibration sieve, sieve gets the particle diameter of bituminous coal at below 3mm, and the particle diameter of pine is at below 5mm;
(3) greasy filth is carried out simple two-phase laminated flow, make its water ratio reach below 75wt%, then under the effect of homogenizer, stir 30s, make its viscosity be reduced to about 2700mPas;
(4) add dispersion agent in the greasy filth after high-speed stirring to stir, make the viscosity of greasy filth be reduced to about 1300mPas further, make greasy filth have good mobility;
(5) take bituminous coal after the greasy filth after falling glutinous process, crushing and screening, pine and magnesium oxide curing agent in proportion, add in homogenizer, stir 10min, make it mix.
(6) under dry method hot press forming technology, sludge containing biomass coal is made.
Case study on implementation 2:
(1) the weight ratio composition setting raw material is: bituminous coal 70 number, greasy filth 20 number, pine 5 number, dispersion agent 3 number, solidifying agent 2 number; Wherein dispersion agent is organic dispersing agent naphthalene sulfonic salt and the 2 number inorganic dispersant Seignette salts of 1 number;
(2) utilize jaw crusher that coal and pine are carried out fragmentation, then screen it with standard vibration sieve, sieve gets the particle diameter of coal at below 3mm, and the particle diameter of pine is at below 5mm;
(3) greasy filth is carried out simple two-phase laminated flow, make its water ratio reach below 75wt%, then under the effect of homogenizer, stir 30s, make its viscosity be reduced to about 2700mPas;
(4) add dispersion agent in the greasy filth after high-speed stirring, stir, make the viscosity of greasy filth be reduced to about 1200mPas further, make greasy filth have good mobility;
(5) take the greasy filth after falling glutinous process, bituminous coal after crushing and screening, pine and magnesium oxide curing agent in proportion, add in homogenizer, stir 10min, make it mix.
(6) under dry method hot press forming technology, sludge containing biomass coal is made.
Case study on implementation 3:
(1) the weight ratio composition setting raw material is: bituminous coal 50 number, greasy filth 40 number, pine 5 number, dispersion agent 3 number, solidifying agent 2 number; Wherein dispersion agent is organic dispersing agent naphthalene sulfonic salt and the 2 number inorganic dispersant Seignette salts of 1 number;
(2) utilize jaw crusher that coal and pine are carried out fragmentation, then screen it with standard vibration sieve, sieve gets the particle diameter of coal at below 3mm, and the particle diameter of pine is at below 5mm;
(3) greasy filth is carried out simple two-phase laminated flow, make its water ratio reach below 75wt%, then under the effect of homogenizer, stir 30s, make its viscosity be reduced to about 2700mPas;
(4) add dispersion agent in the greasy filth after high-speed stirring, stir, make the viscosity of greasy filth be reduced to about 1400mPas further, make greasy filth have good mobility;
(5) take the greasy filth after falling glutinous process, bituminous coal after crushing and screening, pine and magnesium oxide curing agent in proportion, add in homogenizer, stir 10min, make it mix.
(6) under dry method hot press forming technology, sludge containing biomass coal is made.
The measuring method of the industrial shaping coal cold pressing strength specified according to T/T748-1997 measures the cold pressing strength of obtained sludge containing biomass coal, the measuring method of the strength of industrial briquette specified according to GB/T15459 measures the fall strength of briquette of obtained sludge containing biomass coal, the measuring method of the industrial shaping coal water resistance specified according to MT/T749-2007 measures the immersion intensity of obtained sludge containing biomass coal, the measuring method of the industrial shaping coal thermal value specified according to GB/T213-2008 measures the thermal value of obtained sludge containing biomass coal, its detected result is as follows:
| Title | Ultimate compression strength N/ | Fall strength of briquette % | Immersion intensity N/ | Thermal value kcal/kg |
| National standard | ＞600 | ＞75 | ＞150 | ＞3970 |
| Case 1 | 603 | 80.5 | 278 | 4655 |
| Case 2 | 812 | 91.2 | 216 | 4785 |
| Case 3 | 436 | 70.6 | 176 | 4915 |
From above detected result, the oil sludge-containing moulded biomass type calorific value of coal that the present invention obtains is all higher than national standard, and its combustionproperty is significantly improved, and burns the time relatively short, and after burning, direct hash, burns more thorough.Because containing a large amount of insoluble oily substance in sludge containing biomass coal, there is higher immersion intensity.Wherein by the oil sludge-containing moulded biomass coal that the formula of case 2 is obtained, not only the loose coal that uses of combustionproperty and Industrial Boiler is close, and has good ratio of briquetting, reaches certain ultimate compression strength and fall strength of briquette requirement, can meet further genralrlization and apply.In addition, after adding magnesium oxide curing agent, not only increase the molding rate of moulded coal, ratio of briquetting and shaping rear compressive property, also reduce the discharge of moulded coal sulfurous pollutants in combustion, sulfur-fixing rate can reach more than 40%.
Claims (5)
1. greasy filth substitutes a preparation method for the biomass coal of molding adhesive, it is characterized in that comprising the following steps:
1) proportioning raw materials of moulded coal is set: 50 ~ 70 parts, bituminous coal, 20 ~ 40 parts, greasy filth, 5 ~ 10 parts, pine, dispersion agent 2 ~ 4 parts, 1 ~ 2 part, solidifying agent;
2) carry out crushing and screening process to bituminous coal and pine, make the particle diameter of bituminous coal at below 3mm, the particle diameter of pine is at below 5mm;
3) viscosity reduction process is carried out to greasy filth, make its viscosity drop be low to moderate 1200 ~ 1400mPas;
4) greasy filth after falling glutinous process, bituminous coal after crushing and screening, pine and solidifying agent are mixed in proportion, add in homogenizer, stir 8 ~ 12min, make it mix;
5) under dry method hot press forming technology, sludge containing biomass coal is made;
Above-mentioned portion rate is mass fraction.
2. preparation method according to claim 1, is characterized in that: the crushing and screening process in described step 1) refers to and adopts jaw crusher that bituminous coal and pine are carried out fragmentation, then screens it with standard vibration sieve.
3. preparation method according to claim 1, it is characterized in that: described step 2) viscosity reduction process detailed process be: first greasy filth is carried out two-phase laminated flow, its water ratio is made to reach below 75wt%, then under the effect of homogenizer, stir 20 ~ 40s, make its viscosity drop be low to moderate 2500 ~ 3000mPas; Then add dispersion agent in the greasy filth after above-mentioned stirring to stir, make the viscosity drop of greasy filth be low to moderate 1200 ~ 1400mPas.
4. preparation method according to claim 1, is characterized in that: described dispersion agent is combined by the inorganic dispersant of the organic dispersing agent of 1 ~ 2 part and 1 ~ 2 part, and wherein organic dispersing agent is naphthalene sulfonic salt, and inorganic dispersant wine is stone acid potassium sodium.
5. preparation method according to claim 1, is characterized in that: described solidifying agent is magnesium oxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310574823.0A CN104629845A (en) | 2013-11-15 | 2013-11-15 | Method for preparing biomass briquette by using oil sludge instead of forming binders |
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| CN201310574823.0A CN104629845A (en) | 2013-11-15 | 2013-11-15 | Method for preparing biomass briquette by using oil sludge instead of forming binders |
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| CN104629845A true CN104629845A (en) | 2015-05-20 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104910990A (en) * | 2015-05-27 | 2015-09-16 | 赵金树 | Fuel prepared from waste oil-base mud or oil sludge |
| CN105505509A (en) * | 2015-12-24 | 2016-04-20 | 哈尔滨工业大学 | Composite fuel using oil-containing sludge and preparation method thereof |
| CN106590804A (en) * | 2017-02-06 | 2017-04-26 | 天津市环境保护技术开发中心设计所 | Equipment treating oil-containing sludge to fuel powder |
| CN107699309A (en) * | 2017-10-17 | 2018-02-16 | 河北岚山环保科技有限公司 | The imitative coal fuel system of oil sludge and sand solidification and technique |
| CN109135858A (en) * | 2018-09-29 | 2019-01-04 | 新疆西正石化有限公司 | The method and device of moulded coal is produced using oily mud in oil refinery as carburetting adhesive |
| CN110499198A (en) * | 2019-08-23 | 2019-11-26 | 河南长兴实业有限公司 | A kind of moulded coal and preparation method thereof added with red mud |
| CN110791347A (en) * | 2019-10-25 | 2020-02-14 | 新疆大学 | Fatlute and living beings blend processing system |
-
2013
- 2013-11-15 CN CN201310574823.0A patent/CN104629845A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104910990A (en) * | 2015-05-27 | 2015-09-16 | 赵金树 | Fuel prepared from waste oil-base mud or oil sludge |
| CN105505509A (en) * | 2015-12-24 | 2016-04-20 | 哈尔滨工业大学 | Composite fuel using oil-containing sludge and preparation method thereof |
| CN106590804A (en) * | 2017-02-06 | 2017-04-26 | 天津市环境保护技术开发中心设计所 | Equipment treating oil-containing sludge to fuel powder |
| CN107699309A (en) * | 2017-10-17 | 2018-02-16 | 河北岚山环保科技有限公司 | The imitative coal fuel system of oil sludge and sand solidification and technique |
| CN109135858A (en) * | 2018-09-29 | 2019-01-04 | 新疆西正石化有限公司 | The method and device of moulded coal is produced using oily mud in oil refinery as carburetting adhesive |
| CN110499198A (en) * | 2019-08-23 | 2019-11-26 | 河南长兴实业有限公司 | A kind of moulded coal and preparation method thereof added with red mud |
| CN110791347A (en) * | 2019-10-25 | 2020-02-14 | 新疆大学 | Fatlute and living beings blend processing system |
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Application publication date: 20150520 |
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