CN111944578B - Preparation method of smokeless machine-made charcoal for barbecue - Google Patents
Preparation method of smokeless machine-made charcoal for barbecue Download PDFInfo
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- CN111944578B CN111944578B CN202010871000.4A CN202010871000A CN111944578B CN 111944578 B CN111944578 B CN 111944578B CN 202010871000 A CN202010871000 A CN 202010871000A CN 111944578 B CN111944578 B CN 111944578B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/447—Carbonized vegetable substances, e.g. charcoal, or produced by hydrothermal carbonization of biomass
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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
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
Abstract
The invention discloses a preparation method of smokeless machine-made charcoal for barbecue, which comprises the following steps: removing impurities from natural plant wastes, repeatedly crushing, and drying until the water content is lower than 10% to obtain plant powder; heating hydrogenated soybean oil and carboxymethyl cellulose to a molten state, slowly heating the special adhesive, uniformly stirring, adding the plant powder, and uniformly stirring to obtain mixed powder; carrying out semi-finished product forming processing on the mixed powder through a rod-making forming machine, and forming a rod; the heating temperature in the machine is 350-420 ℃, and a semi-finished product is obtained for later use; stacking and airing the obtained semi-finished products for later use; and (3) putting the dried semi-finished product into a carbonization furnace, carbonizing at the temperature of 500-. The invention adopts the special adhesive, not only can achieve smokeless effect, but also has short carbonization time in the preparation process, good economic benefit and high yield of machine-made charcoal.
Description
Technical Field
The invention relates to the technical field of machine-made charcoal, in particular to a preparation method of smokeless machine-made charcoal for barbecue.
Background
The machine-made charcoal is also named as machine-made charcoal, firewood stick, artificial charcoal, regenerated charcoal and smokeless clean charcoal, the raw materials of the charcoal are wide in source, such as rice husk, peanut shell, cotton shell, corn cob, corn stalk, sorghum stalk and the like can be used as raw materials to produce the charcoal, and sawdust, wood shavings and bamboo shavings are the best. Because the machine-made charcoal is smokeless, tasteless and nontoxic, the machine-made charcoal has been widely used for household heating and barbecue foods; in the industrial field, the product can be used as an industrial raw material and can be further processed into active carbon and the like. The machine-made charcoal has high density, high heat value, no smoke, no smell, no pollution, no explosion and easy combustion, and is a green and environment-friendly product recognized internationally.
The method for preparing machine-made charcoal uses wood dust as raw material, and adopts the steps of drying the wood dust (sawdust) by means of drying furnace to obtain thousands of standard raw materials with proper humidity, cooling, feeding them into forming machine (stick-making machine), high-temp. high-pressure plasticizing treatment to obtain firewood stick (semi-finished product), then carbonizing treatment by means of carbonization furnace so as to obtain the invented product. The purpose of using the extrusion forming equipment is to form the raw material containing certain moisture so as to be beneficial to later carbonization or be directly used as a firewood fuel, so that the moisture content of the raw material and the composition of the raw material are determining factors for determining the extrusion temperature.
The invention researches a preparation method of smokeless machine-made charcoal for barbecue in order to improve the quality of the machine-made charcoal and reduce the harm to human bodies.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a preparation method of smokeless machine-made charcoal for barbecue.
The technical scheme of the invention is as follows:
a preparation method of smokeless machine-made charcoal for barbecue comprises the following steps:
a, removing impurities from natural plant wastes, repeatedly crushing, and drying until the water content is lower than 10% to obtain plant powder;
b, heating hydrogenated soybean oil and carboxymethyl cellulose to a molten state, slowly heating the special adhesive, uniformly stirring, adding the plant powder, and uniformly stirring to obtain mixed powder;
c, performing semi-finished product forming processing on the mixed powder through a rod-making forming machine, and making a rod for forming; the heating temperature in the machine is 350-420 ℃, and a semi-finished product is obtained for later use;
d, stacking and airing the obtained semi-finished products for later use;
and E, putting the dried semi-finished product into a carbonization furnace, carbonizing at the temperature of 600 ℃ by 500-.
Preferably, in the step a, the natural plant waste is any one or a combination of more of waste wood, bark, tea waste and crop straw.
Preferably, in the step B, the special adhesive is composed of the following components in percentage by weight:
0.1 to 0.3 percent of nano-scale iron oxide
2 to 5 percent of silane coupling agent
25-40% of expanded vermiculite powder
12 to 18 percent of water glass
0.2 to 0.5 percent of graphene oxide
The balance of unsaturated polyester resin.
Preferably, the silane coupling agent is a silane coupling agent KH-550.
Preferably, the expanded vermiculite powder is obtained by burning vermiculite at high temperature, and the volume of the expanded vermiculite powder is increased by more than 25 times.
Preferably, the adding amount of the special adhesive in the mixed powder is 5-10%.
Preferably, in the step C, the temperature rise speed in the forming machine is 3-5 ℃/min, and the heat preservation time is 5-6 h.
Preferably, in the step E, the temperature rise speed in the carbonization furnace is 1-2 ℃/min, and the heat preservation time is 2-3 h.
The invention has the advantages that: the invention discloses a preparation method of smokeless machine-made charcoal for barbecue, which comprises the following steps: removing impurities from natural plant wastes, repeatedly crushing, and drying until the water content is lower than 10% to obtain plant powder; heating hydrogenated soybean oil and carboxymethyl cellulose to a molten state, slowly heating the special adhesive, uniformly stirring, adding the plant powder, and uniformly stirring to obtain mixed powder; carrying out semi-finished product forming processing on the mixed powder through a rod-making forming machine, and forming a rod; the heating temperature in the machine is 350-420 ℃, and a semi-finished product is obtained for later use; stacking and airing the obtained semi-finished products for later use; and (3) putting the dried semi-finished product into a carbonization furnace, carbonizing at the temperature of 500-. The invention adopts the special adhesive, not only can achieve smokeless effect, but also has short carbonization time in the preparation process, good economic benefit and high yield of machine-made charcoal.
Detailed Description
Example 1
A preparation method of smokeless machine-made charcoal for barbecue comprises the following steps:
a, removing impurities from natural plant wastes, repeatedly crushing, and drying until the water content is lower than 10% to obtain plant powder;
b, heating hydrogenated soybean oil and carboxymethyl cellulose to a molten state, slowly heating the special adhesive, uniformly stirring, adding the plant powder, and uniformly stirring to obtain mixed powder;
c, performing semi-finished product forming processing on the mixed powder through a rod-making forming machine, and making a rod for forming; heating in the machine at 380 deg.C to obtain semi-finished product;
d, stacking and airing the obtained semi-finished products for later use;
and E, putting the dried semi-finished product into a carbonization furnace, carbonizing at 555 ℃, and naturally cooling to obtain the machine-made charcoal.
In the step A, the natural plant waste is waste wood.
In the step B, the special adhesive consists of the following components in percentage by weight:
0.25 percent of nano-scale iron oxide
3.5 percent of silane coupling agent
28 percent of expanded vermiculite powder
15 percent of water glass
0.3 percent of graphene oxide
The balance of unsaturated polyester resin.
The silane coupling agent is a silane coupling agent KH-550.
The expanded vermiculite powder is obtained by burning vermiculite at high temperature, and the volume of the expanded vermiculite powder is increased by more than 25 times.
In the mixed powder, the addition amount of the special adhesive is 8 percent.
In the step C, the temperature rise speed in the forming machine is 4 ℃/min, and the heat preservation time is 5.5 h.
In the step E, the temperature rise speed in the carbonization furnace is 1.5 ℃/min, and the heat preservation time is 2.5 h.
Example 2
A preparation method of smokeless machine-made charcoal for barbecue comprises the following steps:
a, removing impurities from natural plant wastes, repeatedly crushing, and drying until the water content is lower than 10% to obtain plant powder;
b, heating hydrogenated soybean oil and carboxymethyl cellulose to a molten state, slowly heating the special adhesive, uniformly stirring, adding the plant powder, and uniformly stirring to obtain mixed powder;
c, performing semi-finished product forming processing on the mixed powder through a rod-making forming machine to make a rod and form the rod; heating temperature in the machine is 420 ℃, and obtaining a semi-finished product for later use;
d, stacking and airing the obtained semi-finished products for later use;
and E, putting the dried semi-finished product into a carbonization furnace, carbonizing at 500 ℃, and naturally cooling to obtain the machine-made charcoal.
In the step A, the natural plant waste is prepared by mixing waste wood and tea waste in a mass ratio of 1: 1 in combination.
In the step B, the special adhesive consists of the following components in percentage by weight:
0.3 percent of nanoscale iron oxide
2 percent of silane coupling agent
40 percent of expanded vermiculite powder
12 percent of water glass
0.5 percent of graphene oxide
The balance of unsaturated polyester resin.
The silane coupling agent is a silane coupling agent KH-550.
The expanded vermiculite powder is obtained by burning vermiculite at high temperature, and the volume of the expanded vermiculite powder is increased by more than 25 times.
In the mixed powder, the addition amount of the special adhesive is 5 percent.
In the step C, the temperature rise speed in the forming machine is 5 ℃/min, and the heat preservation time is 5 h.
In the step E, the temperature rise speed in the carbonization furnace is 2 ℃/min, and the heat preservation time is 2 h.
Example 3
A preparation method of smokeless machine-made charcoal for barbecue comprises the following steps:
a, removing impurities from natural plant wastes, repeatedly crushing, and drying until the water content is lower than 10% to obtain plant powder;
b, heating hydrogenated soybean oil and carboxymethyl cellulose to a molten state, slowly heating the special adhesive, uniformly stirring, adding the plant powder, and uniformly stirring to obtain mixed powder;
c, performing semi-finished product forming processing on the mixed powder through a rod-making forming machine, and making a rod for forming; heating temperature in the machine is 350 ℃, and obtaining a semi-finished product for later use;
d, stacking and airing the obtained semi-finished products for later use;
and E, putting the dried semi-finished product into a carbonization furnace, carbonizing at 600 ℃, and naturally cooling to obtain the machine-made charcoal.
In the step A, the natural plant waste is waste wood, bark, tea waste and pericarp in a mass ratio of 3: 1: 2: 1 in combination.
In the step B, the special adhesive consists of the following components in percentage by weight:
0.1 percent of nanoscale iron oxide
Silane coupling agent 5%
25 percent of expanded vermiculite powder
18 percent of water glass
0.2 percent of graphene oxide
The balance of unsaturated polyester resin.
The silane coupling agent is a silane coupling agent KH-550.
The expanded vermiculite powder is obtained by burning vermiculite at high temperature, and the volume of the expanded vermiculite powder is increased by more than 25 times.
In the mixed powder, the addition amount of the special adhesive is 10 percent.
In the step C, the temperature rise speed in the forming machine is 3 ℃/min, and the heat preservation time is 6 h.
In the step E, the temperature rise speed in the carbonization furnace is 1 ℃/min, and the heat preservation time is 3 h.
Comparative example 1
The special adhesive in example 1 was directly replaced with an equal amount of water glass.
The smokeless machine-made charcoal for barbecue prepared in examples 1 to 3 and comparative example 1 was subjected to the following performance test, and the following test results were obtained; specific results are shown in table 1.
Table 1: the results of the performance test of the smokeless machine-made charcoal for barbecue prepared in examples 1 to 3 and comparative example 1;
| example 1 | Example 2 | Example 3 | Comparative example 1 | |
| Yield of machine-made charcoal% | 32.8 | 31.7 | 32.3 | 21.5 |
| Ash content% | 14.5 | 14.7 | 14.5 | 26.2 |
| Fixed carbon content% | 78.7 | 77.9 | 78.5 | 54.9 |
| Calorific value kcal/kg | 6672 | 6632 | 6651 | 6475 |
The data are detected according to the national standard GB/T17664-1999.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A preparation method of smokeless machine-made charcoal for barbecue is characterized by comprising the following steps:
a, removing impurities from natural plant wastes, repeatedly crushing, and drying until the water content is lower than 10% to obtain plant powder;
b, heating hydrogenated soybean oil and carboxymethyl cellulose to a molten state, slowly heating the special adhesive, uniformly stirring, adding the plant powder, and uniformly stirring to obtain mixed powder;
c, performing semi-finished product forming processing on the mixed powder through a rod-making forming machine, and making a rod for forming; the heating temperature in the machine is 350-420 ℃, and a semi-finished product is obtained for standby;
d, stacking and airing the obtained semi-finished products for later use;
e, putting the dried semi-finished product into a carbonization furnace, carbonizing at the temperature of 600 ℃ by 500-;
in the step B, the special adhesive consists of the following components in percentage by weight:
0.1 to 0.3 percent of nano-scale iron oxide
2 to 5 percent of silane coupling agent
25-40% of expanded vermiculite powder
12 to 18 percent of water glass
0.2 to 0.5 percent of graphene oxide
The balance of unsaturated polyester resin.
2. The method of preparing smokeless machine-made charcoal for barbecue according to claim 1, wherein in the step a, the natural plant waste is any one or a combination of more of waste wood, bark, tea leaf waste, and pericarp.
3. The method of preparing smokeless machine-made charcoal for barbecue of claim 1, wherein said silane coupling agent is silane coupling agent KH-550.
4. The method for preparing smokeless machine-made charcoal for barbecue according to claim 1, wherein the expanded vermiculite powder is obtained by burning vermiculite at high temperature, and the volume of the expanded vermiculite powder is increased by more than 25 times.
5. The method of preparing smokeless machine-made charcoal for barbecue of claim 1, wherein in said step B, the amount of the special binder added to the powder mixture is 5-10%.
6. The method of preparing smokeless machine-made charcoal for barbecue of claim 1, wherein in step C, the temperature rise speed in the molding machine is 3-5 ℃/min, and the holding time is 5-6 h.
7. The method for preparing smokeless machine-made charcoal for barbecue according to claim 1, wherein in the step E, the temperature rise speed in the carbonization furnace is 1-2 ℃/min, and the heat preservation time is 2-3 h.
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Denomination of invention: A Preparation Method of Smokeless Machine-made Charcoal for Barbecue Effective date of registration: 20230702 Granted publication date: 20220527 Pledgee: Xiaang sub branch of Zhejiang Nanxun Rural Commercial Bank Co.,Ltd. Pledgor: Huzhou Minqiang New Material Technology Co.,Ltd. Registration number: Y2023330001320 |
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