CN108641734A - Subregion continuous tunnel kiln retort - Google Patents
Subregion continuous tunnel kiln retort Download PDFInfo
- Publication number
- CN108641734A CN108641734A CN201810572947.8A CN201810572947A CN108641734A CN 108641734 A CN108641734 A CN 108641734A CN 201810572947 A CN201810572947 A CN 201810572947A CN 108641734 A CN108641734 A CN 108641734A
- Authority
- CN
- China
- Prior art keywords
- region
- furnace body
- trolley
- continuous tunnel
- tunnel kiln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- 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
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/02—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with stationary charge
- C10B47/06—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with stationary charge in retorts
-
- 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
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/32—Other processes in ovens with mechanical conveying means
- C10B47/46—Other processes in ovens with mechanical conveying means with trucks, containers, or trays
-
- 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)
- Processing Of Solid Wastes (AREA)
Abstract
Continuous tunnel kiln retort in subregion disclosed by the invention, including furnace body（1）, trolley（2）, the furnace body（1）For closed tunnel-kiln type structure, both ends are by fire door（6）Closing, the furnace body（1）Inside points are separated with multiple and trolley（2）The region that length matches, each region and each trolley（2）Independent closed area is constituted in carbonisation, in the furnace body（1）Each region be both provided with sealing plate（4）, heat radiation plate（5）, burner（3）With byproduct outlet（14）.The present invention is carbonized by subregion, is realized continuous production, is improved production efficiency, and recycles same substance in the same area, the processing in later stage is made to be simplified and improve, while utilizing the biogas confession combustion gas in charing, further reduction production cost.
Description
Technical field
The invention belongs to carbonization device technical fields, are primarily related to a kind of subregion continous way
Tunnel oven retort is widely used in the charing of biomass.
Background technology
Biomass carbonated refers to the incomplete thermal degradation occurred under the oxidizing atmospheres situation such as no air, generates product（It is raw
Substance charcoal）And byproduct（Water, wood vinegar, biogas and wood tar etc.）Process.In general, biomass is in carbonization process
Middle needs experience is dry, pre- charing, charing three phases, drying stage is biomass carbonated preparation stage, when temperature reaches
At 120-150 DEG C, the moisture that is contained in biomass is heated to take the lead in being precipitated, and becomes dry biomass；Pre- carbonization stage is biomass
Charing initial period, when temperature reaches 150-275 DEG C, dry biomass is heated, labile element therein（Such as hemicellulose
Element）It is pyrolyzed, a small amount of volatile matter is precipitated；Carbonization stage is biomass carbonated Main Stage, when temperature is more than 275 DEG C or more
When, violent thermal decomposition occurs for hemicellulose and cellulose, generates a large amount of volatile matter, discharges a large amount of reaction heat（Biomass
Gas）, obtain preliminary charcoal；When temperature, which continues to increase, reaches 450-500 DEG C, the big calorimetric discharged using carbonization stage is right
Preliminary charcoal carries out anaerobic calcining, will continue to the gas that discharge remains in charcoal, improves the carbon content in charcoal.
For traditional retort in carbonization process, the drying undergone, pre- charing, charing three phases are each attached to same position
It sets, is unable to continuous production, not only time consumption and energy consumption, low production efficiency, but also the byproduct generated in carbonisation is mixing
Substance, need in addition to configure miscellaneous equipment could purification separation and recycling, cause production cost occupy it is high-leveled and difficult under.
" a kind of screw-pushing type biomass continuously carbonizing all-in-one oven " disclosed in Chinese patent literature（CN 206127206
U）, use spiral for power and play the effect of isolation and heat transfer, although solving the problems, such as the movement of destructive distillation biomass, reach
The effect of continuously carbonizing, but this method does not solve the problems, such as that quick destructive distillation i.e. flash heat transfer, production efficiency are relatively low；And it carbonizes
Stove is integral type, and water, wood vinegar, biogas and wood tar of discharge etc. are compounding substances, and later separation equipment is needed to carry out
Processing, increases subsequent intractability and cost；
Disclosed " a kind of carbonizing apparatus and charring process "（CN 107794070 A）, its own gravity is relied on using vertical charing cylinder
It moves down, heating, solves the problems, such as that retort takes up a large area outside cylinder, has equally achieved the effect that continuously carbonizing, but should
Method heat-transfer area is farther apart from biomass intermediate point, and carbonization time can be longer, and production efficiency is equally relatively low；And retort is one
Body formula, water, wood vinegar, biogas and wood tar of discharge etc. are also compounding substances, it is still desirable to which later separation equipment carries out
Processing, increases subsequent intractability and cost.
In conclusion although existing continuous carbonization furnace all realizes quantity-produced purpose on the whole, life is improved
Efficiency is produced, but slow, carbonization is uneven, the thermal energy in cooling procedure does not make full use of, in carbonization process there are still conducting heat
The problem of byproducts such as water, wood vinegar, biogas and the wood tar of discharge need later separation equipment to be handled, therefore,
It is high urgently to invent a kind of production efficiency, the more single continuous charring furnace for being conducive to recycling of gas componant of coming out of the stove.
Invention content
Thus the purpose of the present invention generates, propose a kind of subregion continuous tunnel kiln retort, carbonized by subregion,
Realize continuous production, improve production efficiency, and the same area recycle same substance, make the processing in later stage be simplified and
It improves, while utilizing the biogas confession combustion gas in charing, further reduction production cost.
The present invention realizes that above-mentioned purpose adopts the technical scheme that：A kind of subregion continuous tunnel kiln retort, it is described
Furnace body be closed tunnel-kiln type structure, both ends are closed by fire door, and the furnace interior separation has multiple with trolley length phase
Identical region, each region constitutes independent closed area with each trolley in carbonisation, in the every of the furnace body
A region is both provided with sealing plate, heat radiation plate, burner and byproduct outlet.
Further, the top in each region in the furnace body and axial both sides are both provided with sealing plate, the axial direction two
The sealing plate of side is located on the outside of the thermal insulation board on trolley, the sealing plate at top is located at the top of thermal insulation board；The trolley includes
Multiple trolleies being connected in series with, the rear portion of each trolley are both provided with thermal insulation board, and the sealing plate cooperation at the thermal insulation board and top will
Furnace body is divided into multiple independent regions.
Further, the region in the furnace body is arid region, carbonizes region, charing region in advance and the region that cools down.
Further, samming wind turbine is provided at the top of each region, the fan blade of the samming wind turbine is located at furnace body
Operation interval top in region.
Further, it is provided with pressure measuring unit at the top of each region.
Further, the byproduct outlet is connect by pipeline with the air-introduced machine outside furnace body.
Further, the furnace body is closed tunnel-kiln type string configuration.
Further, the sealing plate is fixed by one to two cylinder supports.
Further, the pre- charing region or charing region or cooling region are one or more region.
Further, the top in the cooling region is provided with air cooling-down pipe, the air cooling-down pipe and external air blast
Machine connects.
Compared with prior art, the present invention has the advantages that：
（1）By using samming wind turbine, the production efficiency of equipment is improved, is 5 times of previous equipment or more；
（2）It due to using multiple and different carbonization temperature rooms, realizes destructive distillation substance not of the same race and is separately recovered so that is follow-up
The processing of equipment is more efficient；
（3）Since self-produced biogas and high warm flue gas and cooling hot-air is effectively utilized, thermal energy is made full use of, is saved
The about energy.
Description of the drawings
Fig. 1 is radial section structural schematic diagram of the present invention.
Fig. 2 is axial section structural schematic diagram of the present invention.
In figure：1, furnace body, 2, trolley, 3, burner, 4, sealing plate, 5, heat radiation plate, 6, fire door, 7, pressure measuring unit, 8,
Samming wind turbine, 9, operation interval, 10, thermal insulation board, 11, reinforcing rib, 12, cylinder, 13, power steel wire rope, 14, byproduct discharge
Mouthful, 15, air cooling-down pipe.
Specific implementation mode
Mode by the following examples is further elaborated the present invention, still, this hair
It is bright not limit to following embodiment.
As shown in Figs. 1-2：Subregion continuous tunnel kiln retort described in the present embodiment includes furnace body 1, trolley 2, combustion
Burner 3, sealing plate 4, heat radiation plate 5, fire door 6, thermal insulation board 10 and cylinder 12, the furnace body 1 are closed tunnel-kiln type knot
Structure is string configuration, and both ends are closed by fire door 6, and the inside of the furnace body 1 is divided into multiple and trolley 2 by sealing plate 4 and grows
The region to match is spent, respectively arid region, in advance charing region, charing region and the region that cools down, the present embodiment are nine areas
Domain, it is therefore an objective to realize continuous production and ensure the quality of carbonization.Each region is set as respectively solely according to the characteristic of biomass
Vertical humidity province, i.e. arid region are 120-150 DEG C, pre- charing region is 150-275 DEG C, 275-450 DEG C of region of charing and cold
But region so that the substance that destructive distillation comes out is property of the same race, such as：The substance that arid region is come is water vapour, pre- charing region point
The substance that solution comes out CO2, CO and a small amount of acetic acid, charing region comes out be wood vinegar and wood tar and hydrocarbon compound such as CH4,
The hot-air that C2H4 etc. is flammable biogas, cooled region come out is that burning provides high-energy combustion-supporting gas, is thereby facilitated subsequently
Processing so that the processing of follow-up equipment is simplified and efficiently.It is both provided in the axial both sides in 1 each region of the furnace body
Heat radiation plate 5 and burner 3, the heat radiation plate 5 are fixedly connected in furnace body 1, are had between the inner wall of furnace body 1 certain
Spacing, the spacing are combustion zone, and the burner 3 is fixed on 1 wall of furnace body, and head is connected to combustion zone, tail portion
It is connected to air source；Sealing in order to ensure each region is tight, the top at each region both ends in the furnace body 1 and axial two
Side is both provided with sealing plate 4, and the sealing plates 4 of the axial direction both sides is located at the sealing plate 4 at two end sides on trolley thermal insulation board, top
Thermal insulation board 10 on the top of trolley thermal insulation board, with trolley 2 is used cooperatively, and the sealing plate 4 is by one to two gas
Cylinder 12 supports, and each cylinder 12 is each attached on furnace body wall, and the piston rod front end of each cylinder 12, which is fixed with sealing plate 4, to be hinged
Connection, the sealing plate 4 is using high temperature resistant stainless steel（2520）It makes, there is certain flexibility, it is therefore an objective to make close
Sealing property is tighter.The trolley 2 includes multiple series connection（Hard collision）The rear portion of the trolley of connection, each trolley 2 is all provided with
It is equipped with thermal insulation board 10, which coordinates with the sealing plate 4 at each region side and top in furnace body, furnace body is divided into more
A independent region, the thermal insulation board 10 are fixed by reinforcing rib 11.
In order to shorten carbonization time, ensure carbonization quality, it is necessary to keep the temperature of operation interval 9 in each region uniform, make
Biomass can it is comprehensive it is synchronous realize carbonization, therefore, samming wind turbine 8, samming wind turbine 8 are mounted at the top of each region
It can be one, can also be two or more, each samming wind turbine 8 is each attached in the upper end wall of furnace body 1, Mei Gejun
The rotary shaft of warm air machine 8 is fixedly connected with the fan blade on 9 top of operation interval in furnace body, in this way, in carbonisation, is led to
Crossing the rotation of fan blade keeps the temperature in operation interval 9 up and down uniform, makes being heated evenly for biomass, effectively shorten carbonization when
Between, it avoids local temperature excessively high and influences carbonization quality.Temperature in operation interval 9 is controlled by adjusting burner 3, i.e.,
Temperature sensor is set in each region, which connect with chip controller, the chip controller and burning
The control valve of device 3 is connected, in this way, chip controller is by analyzing the signal that temperature sensor detects, and according to setting
Fixed temperature value automatically adjusts automatic adjustment of the control valve realization of burner to temperature in operation interval 9.The control
Method is using routine techniques, and details are not described herein.
In order to make the pressure in furnace body 1 close to normal pressure, avoid pressure excessive or it is too small cause gas to leak, in each region
Top be mounted on pressure measuring unit 7 and byproduct outlet 14, byproduct outlet 14 passes through pipeline and drawing outside furnace body
Wind turbine connect, control valve is connected on pipeline, the pressure measuring unit 7 is connect with chip controller, the chip controller and
Control valve on air-introduced machine is connected, in this way, pressure measuring unit 7 sends the pressure signal of detection to chip controller, chip
Controller is analyzed by the signal to detection, and according to the pressure value of setting, automatically adjusts air-introduced machine control valve aperture
Realize the adjusting to pressure in operation interval 9.The control method is using routine techniques, and details are not described herein.
Top in the cooling region of the furnace body is provided with air cooling-down pipe, the air cooling-down pipe and external air blast
Machine connects, and is dried from air blower into air cooling-down pipe, takes away the heat to cool down in region by heat exchange, realizes cooling.
Before the present embodiment is in use, start charging, alternative fuel is first used（Natural gas, liquefied gas etc.）By each charcoal in furnace body
Change space heating to the temperature of setting, biomass material is placed on trolley 2, by first trolley of traction of power steel wire rope 13（Contain
The empty wagons of front one）Into arid region, after trolley 2 is walked in place, the sealing plate 4 in the region is pushed tightly by external cylinder 12
It pastes 10 both ends of thermal insulation board and top on trolley 2 and realizes that sealing, the temperature (120-150 DEG C) set in the region are assembled by both sides
Burner 3 automatically adjust, when the carbonization time in the region reach as defined in setting value after, burner 3 is automatically turned off, by the area
The cylinder 12 in domain drives sealing plate 4 to retract；Second trolley is hung up, drying is entered by second trolley of power rope traction
Region, first trolley, which is pushed away to synchronize, enters pre- charing region, and the sealing plate 4 in two regions is respectively by respective cylinder 12
10 both ends of thermal insulation board being close on trolley 2 and top are pushed to realize sealing, the temperature of the setting in the region（150-275℃）By
The burner 3 of both sides assembly automatically adjusts, when the carbonization time in the region（It is identical as the dry section time）After arriving, it is automatically turned off institute
There is burner 3, drives the sealing plate 4 in respective region to retract by the cylinder 12 in respective region；Third trolley is hung up, by power
Rope traction third trolley enters arid region, and second trolley, which synchronizes, enters pre- charing region, first trolley synchronization
Into charing region, the sealing plate 4 in each region is pushed 10 both ends of thermal insulation board for being close to trolley 2 by respective cylinder 12 respectively
It realizes and seals with top, the temperature of the setting in the region（275-450℃）The burner 3 assembled by both sides automatically adjusts, when
After the carbonization time (identical as the dry section time) in the region reaches, all burners 3 are automatically turned off, by the cylinder in respective region
12 drive the sealing plate 4 in respective region to retract；And so on, until first trolley enters the cooling region of least significant end, complete
Be carbonized overall process.Residence time is equal in each region in furnace body for each trolley, but in furnace body each region temperature it is equal
It differs, in this way, the byproduct of different zones discharge is consistent, i.e., the substance that arid region comes out is water vapour, pre- charing
Region Decomposition comes out CO2, the substance that comes out of CO and a small amount of acetic acid, charing region be wood vinegar and wood tar and hydrocarbon compound
Such as CH4、C2H4The high temperature air come out etc. flammable biogas, cooled region provides high-energy combustion-supporting gas for burning, carbonizes region
Flammable biogas out switches into the burner of each region both sides by pipeline, realizes confession combustion gas, extra combustion gas can
It is for external application；The high temperature air that cooled region comes out enters the combustion chamber in each region by pipeline, as burner hearth both sides burner
Combustion air, reaches energy-efficient effect, and realization makes full use of waste heat.
In order to ensure continuous production and the quality of carbonization, arid region in furnace body carbonizes region, charing region and drop in advance
Temperature area is not limited to a trolley area, it may be possible to two or multiple trolley areas, in this way, consistent in each region carbonization time
Under the premise of, it is ensured that the quality of carbonization.Cooling region is at least two or more, completes the biomass carbon of carbonization and need to pass through several coolings
Behind region, after capable of just dropping to defined tapping temperature, comes out of the stove from the last one cooling region, complete charing task.
Claims (10)
1. a kind of subregion continuous tunnel kiln retort, including furnace body（1）, trolley（2）, it is characterised in that：The furnace body
（1）For closed tunnel-kiln type structure, both ends are by fire door（6）Closing, the furnace body（1）Inside points are separated with multiple and trolley（2）
The region that length matches, each region and each trolley（2）Independent closed area is constituted in carbonisation, described
Furnace body（1）Each region be both provided with sealing plate（4）, heat radiation plate（5）, burner（3）With byproduct outlet（14）.
2. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that：The furnace body（1）Interior
The top in each region and axial both sides are both provided with sealing plate（4）, it is described axial direction both sides sealing plate be located at heat radiation plate（5）
Inside, top sealing plate be located at the top in region；The trolley（2）Including multiple trolleies being connected in series with, each trolley
Rear portion be both provided with thermal insulation board（10）, the sealing plate of the thermal insulation board and top（4）Furnace body is divided into multiple independent by cooperation
Region.
3. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that：The furnace body（1）Interior
Region is arid region, carbonizes region, charing region in advance and the region that cools down.
4. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that：In each region
Top is provided with samming wind turbine（8）, the samming wind turbine（8）Fan blade be located at the operation interval in furnace body region（9）Top.
5. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that：In each region
Top is provided with pressure measuring unit（7）.
6. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that：The byproduct outlet
（14）Pass through pipeline and furnace body（1）External air-introduced machine connection.
7. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that：The furnace body（1）For
Closed tunnel-kiln type string configuration.
8. continuous tunnel kiln retort in subregion according to claim 1 or 2, it is characterised in that：The sealing plate
（4）By one to two cylinder（12）Support is fixed.
9. continuous tunnel kiln retort in subregion according to claim 3, it is characterised in that：The charing region or combustion
It is one or more region to burn region or cooling region.
10. the subregion continuous tunnel kiln retort according to claim 3 or 9, it is characterised in that：The cooling region
Interior top is provided with air cooling-down pipe（15）, which connect with external air blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572947.8A CN108641734A (en) | 2018-06-06 | 2018-06-06 | Subregion continuous tunnel kiln retort |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572947.8A CN108641734A (en) | 2018-06-06 | 2018-06-06 | Subregion continuous tunnel kiln retort |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108641734A true CN108641734A (en) | 2018-10-12 |
Family
ID=63751854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810572947.8A Pending CN108641734A (en) | 2018-06-06 | 2018-06-06 | Subregion continuous tunnel kiln retort |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999722A (en) * | 2019-05-06 | 2019-07-12 | 广西宝汇佳利投资管理有限公司 | A kind of scale continuous and stable production device and method of black phosphorus |
| WO2020134058A1 (en) * | 2018-12-26 | 2020-07-02 | 广东科达洁能股份有限公司 | Transition box body for preventing powder from entering kiln |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939169A (en) * | 2016-01-05 | 2017-07-11 | 科利特环能科技（大连）有限公司 | A kind of biomass carbonization tunnel cave |
| CN208308782U (en) * | 2018-06-06 | 2019-01-01 | 陈学锋 | Subregion continuous tunnel kiln retort |
-
2018
- 2018-06-06 CN CN201810572947.8A patent/CN108641734A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939169A (en) * | 2016-01-05 | 2017-07-11 | 科利特环能科技（大连）有限公司 | A kind of biomass carbonization tunnel cave |
| CN208308782U (en) * | 2018-06-06 | 2019-01-01 | 陈学锋 | Subregion continuous tunnel kiln retort |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134058A1 (en) * | 2018-12-26 | 2020-07-02 | 广东科达洁能股份有限公司 | Transition box body for preventing powder from entering kiln |
| CN109999722A (en) * | 2019-05-06 | 2019-07-12 | 广西宝汇佳利投资管理有限公司 | A kind of scale continuous and stable production device and method of black phosphorus |
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