CN107286970A - A kind of tea grounds smokeless char and preparation method thereof - Google Patents
A kind of tea grounds smokeless char and preparation method thereof Download PDFInfo
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- CN107286970A CN107286970A CN201610200484.3A CN201610200484A CN107286970A CN 107286970 A CN107286970 A CN 107286970A CN 201610200484 A CN201610200484 A CN 201610200484A CN 107286970 A CN107286970 A CN 107286970A
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- tea grounds
- smokeless
- anaerobic
- charing
- aerobic
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/02—Multi-step carbonising or coking processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
- C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Carbon And Carbon Compounds (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of tea grounds smokeless char and preparation method thereof, it is prepared by tea grounds for raw material, including drying, shaping, anaerobic charing, it is aerobic charing and cleaning etc. step.The tea grounds smokeless char of the present invention, not only solves pollution problem and changing waste into resources can also utilize to greatest extent.Tea grounds smokeless char is environmentally friendly, environmental protection, safely cleaning, tasteless, smokeless, nontoxic, using safely, have a wide range of application, cost is low, and social benefit is high.
Description
Technical field
It is more particularly to a kind of to be prepared smokelessly using tea grounds the present invention relates to tealeaves and tea product technical field of comprehensive utilization
The method and product of charcoal.
Background technology
Tealeaves is as traditional drink, and species is various, and consumption is huge, but used tealeaves (namely tea grounds)
It is dropped mostly as house refuse, not only pollutes environment and also result in the wasting of resources.
The cultivated area of tealeaves at home or even in the world constantly expands, and yield constantly rises, at the same time, consumer
Demand to tealeaves also constantly increases, and rises every year, causes the tea grounds quantity produced also increasing.At present
Tea grounds is mainly handled in the way of burning (ashing), and this causes very big pressure to urban life environment, or even makes
Into air and the severe contamination of water, trigger a series of environment and ecological problem, such as cause water body pollution of area source to aggravate,
Air particle increase, pollutant in soil accumulation etc..
If making full use of tea grounds, suitable product is developed by tea grounds, it will turn waste into wealth, make full use of nature
Resource.
The content of the invention
The purpose of the present invention is to be to utilize a kind of environmental protection of tea grounds offer, smokeless, tasteless, nontoxic tea grounds smokeless
Charcoal, it is prepared by tea grounds for raw material.
The tea grounds moisture is 10wt%-16wt%, most preferably preferably 13wt%-16wt%, 14wt%-15wt%.
There are the quadrangular or six prisms of through hole centered on its shape.
The tea grounds smokeless char external diameter is 50-70mm, and the aperture of central through hole is 15-20mm.
Its calorific value is in more than 7500kcal/kg, and burning time is at 3 more than hour.
Second aspect purpose, the present invention is intended to provide a kind of method for preparing above-mentioned tea grounds smokeless char, including by tea grounds
The steps such as dry, shaping, anaerobic charing, aerobic charing and cleaning.
The anaerobic carbonization temperature is 450-500 DEG C, and anaerobic carbonization time is 5-7 days；Anaerobic carbonization temperature is preferred
460-490 DEG C, most preferably 480 DEG C -490 DEG C；Preferred 5-6 days of anaerobic carbonization time, most preferably 6 days.That is,
When anaerobic carbonization temperature is 460-490 DEG C, anaerobic carbonization time can be 5-6 days or 6 days；When anaerobic carbonizes temperature
Spend for 480 DEG C -490 DEG C when, anaerobic carbonization time can also be 5-6 days or 6 days.
The aerobic carbonization temperature is 800-900 DEG C, and aerobic carbonization time is 4-6 hours；Aerobic carbonization temperature is preferred
830-870 DEG C, most preferably 830 DEG C -850 DEG C；The aerobic preferred 4-5h of carbonization time, most preferably 4h.That is,
When aerobic carbonization temperature is 830 DEG C -870 DEG C, aerobic carbonization time can be 4-5h or 4h；When aerobic carbonization temperature
For 830 DEG C -850 DEG C when, aerobic carbonization time can also be 4-5h or 4h.
The forming temperature is 260-350 DEG C, and pressure is 80MPa.
Comprise the following steps：
(1), tea grounds is dried or dried to wherein moisture in 10wt%-16wt%；
(2), it is put into 50 bar-producing machines and is molded, during tea grounds is plastified into through 260-350 DEG C of high temperature and 80MPa high pressures
The heart has the bar-shaped firewood rod of through hole, and the firewood rod is in hollow quadrangular or six prisms, and external diameter is 50-70mm, and aperture is
15-20mm；
(3), the firewood rod for obtaining step (2) is put into retort, closes retort, and charing in-furnace temperature is adjusted to
450-500 DEG C, anaerobic is carbonized 5-7 days；
(4), after the completion of anaerobic charing, retort sealing is released, adjustment charing in-furnace temperature has to 800-900 DEG C
Oxygen is carbonized 4-6 hours；
(5) retort, is opened, firewood rod is taken out rapidly, firewood rod is covered, breaks off oxygen cooling；
(6) the floating ash on top layer is rinsed out after, cooling with clear water, dries to water content in 5wt% or so, produces.
The tea grounds smokeless char of the present invention is fired using tea grounds and formed, and because carbon element content therein is high, fires obtained nothing
Cigarette charcoal is free of any additive, and calorific value is high, environmental protection, smokeless, tasteless, nontoxic, and cost is low, can either give up
Thing is utilized, and turn avoid tea grounds pollution environment.The method for preparing tea grounds smokeless char of the present invention, tea grounds change can be given up into
Treasured, reduces environment and ecological pollution；The organic matter in tea grounds is set to reach the utilization of recycling, yield is high, society's effect
It is beneficial high.
Embodiment
It is contemplated that twice laid, it is contemplated that a large amount of presence of lignin and fiber substance in tea grounds, inventor carries
Go out and prepare machine-made carbon using tea grounds.
Existing machine-made carbon (smokeless char) is passed through with raw materials such as branch, sawmilling (wood shavings), grain shell, plant straws
Crushing, drying extruding, high temperature carbonization, firing are crossed, replacing natural wood charcoal.It can be seen that machine-made carbon
Preparation process in raw material type it is many, water content is different, and raw material is needed in crushing and drying course respectively to locate
Reason, often technique is cumbersome, complexity.Tea grounds is tealeaves or tea product brew after discarded object, its character with it is existing primary
Raw material under state is different, therefore without the charcoal processing technique that can directly use for reference.Inventor is by groping and testing, tea
Slag is really used, it is determined that a kind of to be jointly processed by tea grounds with aerobic two kinds of high temperature carbonizations with anaerobic and prepare smokeless char
Method, and finally give a kind of environmental protection, smokeless, tasteless, nontoxic tea grounds smokeless char.
The method for preparing tea grounds smokeless char of the present invention, including tea grounds dried, is molded, anaerobic charing, it is aerobic carbonize and
The processes such as cleaning.
Specifically include following steps：
(1), the tea grounds of recovery is dried or dried, to wherein moisture in 10%-16%；
(2), it is put into 50 bar-producing machines and is molded, during tea grounds is plastified into through 260-350 DEG C of high temperature and 80MPa high pressures
The round-meshed bar-shaped firewood rod in portion, obtained firewood rod overall diameter is 50-70mm, and the aperture of middle part circular hole is 15-20mm, is in
Hollow quadrangular or six prisms；
(3), the firewood rod for obtaining step (2) is put into retort, is closed the door and is closed at gap, igniting is ignited, charcoal
Change in-furnace temperature and be adjusted to 450-500 DEG C, anaerobic is carbonized 5-7 days；
(4), after the completion of anaerobic charing, it will be opened at gap, adjustment charing in-furnace temperature is aerobic to 800-900 DEG C
Burning 4-6 hours；
(5) door of retort, is opened, is rapidly taken out firewood rod, the lid being made of iron sheet covers firewood rod, with disconnected
Anoxybiotic gas, is then down to room temperature；
(6) taken out after, cooling, clear water rinses out the floating ash on top layer, dries to water content 5% or so, produce tea
Slag smokeless char.
Below in conjunction with specific embodiment, present disclosure is further illustrated, and the present invention is further elaborated,
But these embodiments limit the invention absolutely not.
Prepare as stated above each in a series of tea grounds smokeless chars (embodiment 1- embodiments 6), preparation process
Parameter is as shown in table 1.Comparative example 1-6 is to prepare tea grounds smokeless char according to the method for the present invention, is only adjustment preparation side
Parameter in method is specifically shown in Table 2 not within the scope of the invention；Wherein, tea-leaf water when comparative example 1-2 is shaping
Divide content not within the scope of the invention, comparative example 3-4 is the temperature and time of anaerobic charing not in the scope of the present invention
It is interior, comparative example 5-6 be the temperature and time of aerobic charing not within the scope of the invention.
Table 1 prepares each parameter of tea grounds smokeless char process
Table 2 prepares each parameter of tea grounds smokeless char process
The tea grounds smokeless char being made is detected：
First, form inspection：
The tea grounds smokeless char prepared by the inventive method, such as embodiment 1-6, complete appearance, it is flawless, without powder
It is broken, only it is color blackening compared with the firewood rod after shaping, without other modal changes.
And the tea grounds that comparative example 1-2 can not be molded；Though the tea grounds smokeless char that comparative example 3-6 can be molded,
But yield is considerably less than what embodiment 1-6 was obtained.
2nd, heating-value determination：
1kg tea grounds smokeless char is taken compared with the charcoal of phase homogenous quantities, tea grounds smokeless char calorific value of the invention exists
More than 7500kcal/kg, density is big and firm, shape unified, and the through hole at center is readily burned and used, during burning
Between at 3 more than hour；And the charcoal of phase homogenous quantities is low due to fixed carbon content, calorific value is only 6500kcal/kg left
The right side, existing anthracitic calorific value is also only 6000-6500kcal/kg；Comparative example 1-2 is not because can not be molded
Tea grounds smokeless char, therefore its calorific value can not be considered；The calorific value of comparative example 3 and 5 fires in 7000kcal/kg or so
There is dense smoke generation during burning, do not meet the original intention of smokeless char；The calorific value of comparative example 4 and 6 is in 6000-6500kcal/kg
Between.
3rd, yield：
Due to tea grounds of the invention, moisture is higher before it is dried, and being compared yield with existing smokeless char is unfair,
Therefore on the basis of the raw material weight after drying, before shaping, calculating is obtained：The tea grounds prepared with the inventive method
The yield of smokeless char is 55% or so, and the yield of existing smokeless char is 40% or so；Comparative example 1-2 can not be molded, nothing
Method compares；The yield of comparative example 4 and 6 and existing smokeless char is very nearly the same；Comparative example 3-5 yield is slightly above existing
Smokeless char, but significantly lower than embodiment 1-6.
Compare the product that Tables 1 and 2 is obtained, by comparing their mode of appearance, combustion process and calorific value result,
Then in conjunction with the data in Tables 1 and 2, it is known that：
The moisture of tea grounds is the key of forming step, and moisture is crossed low salary rod not easy-formation, easily scattered, most
The tea grounds smokeless char that can not be molded eventually；Moisture crosses that high salary rod is too soft, easily occurs in follow-up carbonization process
Crack, is easily crushed during use, the tea grounds smokeless char that finally can not be also molded.
The effect of anaerobic charing is the impurity that cigarette is easily given birth in decomposition combustion, retains the carbon content in raw material；Temperature therein and
Time is very crucial, and temperature is too low, carbonization time is too short, and the impurity component that cigarette can be produced during burning is not decomposed completely,
A large amount of dense smokes can be produced when in use；Temperature is too high, carbonization time is long, and the carbon in raw material can participate in reaction, cause
Carbon content in product is low, material loss is big, calorific value is low.
Aerobic charing is the step of present invention is found out for tea grounds as raw material, is fired to further remove in raw material
The material of cigarette is also easy to produce during burning, and by controlling carbonization temperature and time, it is ensured that the carbon content in raw material is able to maximum journey
The reservation of degree.And the step for there is no aerobic charing during preparing existing smokeless char.In aerobic carbonization process,
Carbonization temperature and time are also key factor, and temperature is too low, carbonization time is too short, and obtained final products are in burning
It is also easy to produce a large amount of flue gases；Temperature is too high, carbonization time is long, and the carbon in raw material can generate carbon dioxide with oxygen reaction
It is consumed, causes that the carbon content in product is low, material loss is big, calorific value is low.
More than experiment and the analysis shows present invention tea grounds smokeless char, not only solve pollution problem and can also maximum limit
Degree ground changing waste into resources is utilized；Not only tea grounds is turned waste into wealth, reduce environment and ecological pollution risk, additionally it is possible to increase
Plus social benefit.Because the smokeless carbon feedstock of the present invention only has tea grounds a kind of, therefore, its preparation process can be significantly simple
Change, it is easier to realize, and yield is high.Tea grounds smokeless char proposed by the present invention, its raw material only has tea grounds, without any
Additive, it is environmentally friendly, it is environmental protection, safely cleaning, tasteless, smokeless, nontoxic, using safety, using model
Enclose wide, cost is low, social benefit is high.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvement
Present disclosure is also should be regarded as with retouching.
Claims (10)
1. a kind of tea grounds smokeless char, it is characterised in that it is prepared by tea grounds for raw material.
2. tea grounds smokeless char according to claim 1, it is characterised in that the tea grounds moisture is
10wt%-16wt%, preferably 13wt%-16wt%, most preferably 14wt%-15wt%.
3. tea grounds smokeless char according to claim 1 or claim 2, it is characterised in that have the four of through hole centered on its shape
Prism or six prisms.
4. tea grounds smokeless char according to claim 3, it is characterised in that the tea grounds smokeless char external diameter is 50-70mm,
The aperture of central through hole is 15-20mm.
5. according to any tea grounds smokeless chars of claim 1-4, it is characterised in that its calorific value is in 7500kcal/kg
More than, burning time is at 3 more than hour.
6. a kind of method for preparing any tea grounds smokeless chars of claim 1-5, it is characterised in that including by tea grounds
The steps such as dry, shaping, anaerobic charing, aerobic charing and cleaning.
7. method according to claim 6, it is characterised in that the anaerobic carbonization temperature is 450-500 DEG C, nothing
Oxygen carbonization time is 5-7 days；Preferred 460-490 DEG C of anaerobic carbonization temperature, most preferably 480 DEG C -490 DEG C；Anaerobic is carbonized
Preferred 5-6 days of time, most preferably 6 days.
8. according to the methods described of claim 6 or 7, it is characterised in that the aerobic carbonization temperature is 800-900 DEG C,
Aerobic carbonization time is 4-6 hours；Aerobic preferred 830-870 DEG C of carbonization temperature, most preferably 830 DEG C -850 DEG C；It is aerobic
Carbonization time preferred 4-5h, most preferably 4h.
9. according to claim 6 or 7 or 8 methods describeds, it is characterised in that the forming temperature is 260-350 DEG C,
Pressure is 80MPa.
10. according to any methods describeds of claim 6-9, it is characterised in that comprise the following steps：
(1), tea grounds is dried or dried to wherein moisture in 10wt%-16wt%；
(2), it is put into 50 bar-producing machines and is molded, during tea grounds is plastified into through 260-350 DEG C of high temperature and 80MPa high pressures
The heart has the bar-shaped firewood rod of through hole, and the firewood rod is in hollow quadrangular or six prisms, and external diameter is 50-70mm, and aperture is
15-20mm；
(3), the firewood rod for obtaining step (2) is put into retort, closes retort, and charing in-furnace temperature is adjusted to
450-500 DEG C, anaerobic is carbonized 5-7 days；
(4), after the completion of anaerobic charing, retort sealing is released, adjustment charing in-furnace temperature has to 800-900 DEG C
Oxygen is carbonized 4-6 hours；
(5) retort, is opened, firewood rod is taken out rapidly, firewood rod is covered, breaks off oxygen cooling；
(6) the floating ash on top layer is rinsed out after, cooling with clear water, dries to water content in 5wt% or so, produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200484.3A CN107286970B (en) | 2016-04-01 | 2016-04-01 | Tea residue smokeless carbon and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200484.3A CN107286970B (en) | 2016-04-01 | 2016-04-01 | Tea residue smokeless carbon and preparation method thereof |
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| CN107286970A true CN107286970A (en) | 2017-10-24 |
| CN107286970B CN107286970B (en) | 2021-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108219251A (en) * | 2018-01-12 | 2018-06-29 | 湖南人文科技学院 | Wood plastic composite and preparation method thereof |
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| CN107286970B (en) | 2021-08-03 |
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