CN208308782U - Subregion continuous tunnel kiln retort - Google Patents
Subregion continuous tunnel kiln retort Download PDFInfo
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- CN208308782U CN208308782U CN201820867951.2U CN201820867951U CN208308782U CN 208308782 U CN208308782 U CN 208308782U CN 201820867951 U CN201820867951 U CN 201820867951U CN 208308782 U CN208308782 U CN 208308782U
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Abstract
Continuous tunnel kiln retort in subregion disclosed by the utility model, including furnace body (1), trolley (2), the furnace body (1) is closed tunnel-kiln type structure, it is closed by fire door (6) at both ends, furnace body (1) inner part is separated with multiple regions to match with trolley (2) length, each region and each trolley (2) constitute independent closed area in carbonisation, are provided with sealing plate (4), heat radiation plate (5), burner (3) and byproduct outlet (14) in each region of the furnace body (1).The utility model is carbonized by subregion, it realizes continuous production, improve production efficiency, and same substance is recycled in the same area, the processing in later period is made to be simplified and improve, while utilizing the biogas confession combustion gas in charing, further reduction production cost.
Description
Technical field
The utility model belongs to carbonization device technical field, is primarily related to a kind of subregion company
Continuous formula tunnel oven retort, is widely used in the charing of biomass.
Background technique
It is biomass carbonated to refer to the incomplete thermal degradation occurred under the oxidizing atmospheres situation such as no air, it is (raw to generate product
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, carbonizes in advance, charing three phases, and drying stage is the biomass carbonated preparation stage, when temperature reaches
At 120-150 DEG C, the moisture contained in biomass is heated to take the lead in being precipitated, and becomes dry biomass；Pre- carbonization stage is biomass
Charing initial phase, when temperature reaches 150-275 DEG C, dry biomass is heated, labile element (such as hemicellulose therein
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, drying experienced, 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, production efficiency are low, but also the byproduct generated in carbonisation is mixing
Substance, need in addition to configure other equipment could purification separations 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 " (CN 206127206 disclosed in Chinese patent literature
U), use spiral for power and play the effect of isolation and heat transfer, although solving the problems, such as that destructive distillation biomass is mobile, reach
The effect of continuously carbonizing, but this method does not solve the problems, such as quick destructive distillation i.e. flash heat transfer, and production efficiency is relatively low；And it carbonizes
Furnace 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 processing difficulty and cost；
Disclosed " a kind of carbonizing apparatus and charring process " (107794070 A of CN) relies on itself using vertical charing cylinder
Gravity moves down, and heating, solves the problems, such as that retort takes up a large area, equally achieved the effect that continuously carbonizing outside cylinder,
But this 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
For integral type, water, wood vinegar, biogas and the wood tar of discharge etc. are also compounding substances, it is still desirable to later separation equipment
It is handled, increases subsequent processing difficulty and cost.
Although improving life in conclusion existing continuous carbonization furnace all realizes quantity-produced purpose on the whole
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,
A kind of high production efficiency is urgently invented, the more single continuous charring furnace for being conducive to recycling of gas componant of coming out of the stove.
Summary of the invention
Thus the purpose of this utility model generates, propose a kind of subregion continuous tunnel kiln retort, pass through subregion
Charing realizes continuous production, improves production efficiency, and the processing recycled same substance in the same area, enable the later period
Simplify and improve, while utilizing the biogas confession combustion gas in charing, further reduction production cost.
The utility model realizes that above-mentioned purpose adopts the technical scheme that: a kind of subregion continuous tunnel kiln retort,
The furnace body is closed tunnel-kiln type structure, and both ends are closed by fire door, and the furnace interior separation has multiple and small vehicle commander
The region to match is spent, each region and each trolley constitute independent closed area in carbonisation, in the furnace body
Each region be provided with sealing plate, heat radiation plate, burner and byproduct outlet.
Further, the top in the intracorporal each region of the furnace and axial sides are 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
The rear portion of the trolley of multiple series connections, each trolley is provided with thermal insulation board, and the sealing plate at the thermal insulation board and top cooperates will
Furnace body is divided into multiple independent regions.
Further, the intracorporal region of the furnace is arid region, carbonizes region, charing region and cooling region in advance.
Further, samming blower is provided at the top of each region, the fan blade of the samming blower is located at furnace body
Operation interval top in region.
Further, pressure measuring unit is provided 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 connection.
Compared with prior art, the utility model has the following beneficial effects:
(1) by using samming blower, the production efficiency of equipment is improved, is 5 times of previous equipment or more；
(2) due to realizing destructive distillation substance not of the same race and being separately recovered using multiple and different carbonization temperature rooms, so that
The processing of follow-up equipment is more efficient；
(3) since self-produced biogas and high warm flue gas and cooling hot-air is effectively utilized, heat is made full use of
Can, it is energy saving.
Detailed description of the invention
Fig. 1 is the utility model radial section structural schematic diagram.
Fig. 2 is the utility model axial section structural schematic diagram.
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 blower, 9, operation interval, 10, thermal insulation board, 11, reinforcing rib, 12, cylinder, 13, power wirerope, 14, byproduct discharge
Mouthful, 15, air cooling-down pipe.
Specific embodiment
Mode by the following examples is further elaborated the utility model, still,
The utility model does not limit to following embodiment.
As shown in Figs. 1-2: continuous tunnel kiln retort in subregion 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 long with trolley 2 by sealing plate 4
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 the quality realized continuous production and ensure to be carbonized.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 vapor, 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 to burn to provide high-energy combustion-supporting gas, is thereby facilitated subsequent
Processing so that the processing of follow-up equipment is simplified and efficiently.Axial sides in each region of the furnace body 1 are provided with
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 gas source；Sealing in order to guarantee each region is tight, the top at each region both ends in the furnace body 1 and axial two
Side is provided with sealing plate 4, and the sealing plate 4 of the axial 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, the piston rod front end of each cylinder 12 with 4 fixed hinge of sealing plate
Connection, the sealing plate 4 make using high temperature resistant stainless steel (2520), have certain flexibility, it is therefore an objective to make close
Sealing property is tighter.The trolley 2 includes the trolley of multiple series connection (hard collision) connections, and the rear portion of each trolley 2 is all provided with
It is equipped with thermal insulation board 10, the sealing plate 4 at each region side and top cooperates in the thermal insulation board 10 and 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, guarantee 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 blower 8, samming blower 8 are mounted at the top of each region
It can be one, be also possible to two or more, each samming blower 8 is each attached in the upper end wall of furnace body 1, Mei Gejun
The rotary shaft of warm blower 8 is fixedly connected with the fan blade for being located at 9 top of operation interval in furnace body, in this way, leading in carbonisation
The rotation for crossing 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
Blower connection, 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, the pressure signal that pressure measuring unit 7 will test sends chip controller, chip to
Controller automatically adjusts air-introduced machine control valve aperture by analyzing the signal of detection, and according to the pressure value of setting
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 connection, is dried from air blower into air cooling-down pipe, is taken away the heat to cool down in region by heat exchange, is realized cooling.
Before the present embodiment is in use, start charging, first use alternative fuel (natural gas, liquefied gas etc.) by charcoal each in furnace body
Change space heating to the temperature set, biomass material is placed on trolley 2, is drawn first trolley by power wirerope 13 and (is contained
The empty wagons of front one) enter 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 sealing, the temperature (120-150 DEG C) set in the region is assembled by two 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
Push 10 both ends of thermal insulation board being close on trolley 2 and top to realize sealing, the temperature (150-275 DEG C) of the setting in the region by
The burner 3 of two sides assembly automatically adjusts, and after the carbonization time (identical as the dry section time) when the region arrives, 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 synchronous charing region, first trolley in advance of entering of second trolley synchronizes
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 (275-450 DEG C) of the setting in the region is automatically adjusted by the burner 3 that two sides are assembled, 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
Not identical, in this way, the byproduct of different zones discharge is consistent, i.e., the substance that arid region comes out is vapor, 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 two 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 two 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, and the biomass carbon for completing carbonization 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
It (1) is closed tunnel-kiln type structure, both ends are closed by fire door (6), and furnace body (1) inner part is separated with multiple and trolley (2)
The region that length matches, each region and each trolley (2) constitute independent closed area in carbonisation, described
Each region of furnace body (1) is provided with sealing plate (4), heat radiation plate (5), burner (3) and byproduct outlet (14).
2. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that: in the furnace body (1)
The top in each region and axial sides are provided with sealing plate (4), and the sealing plate of the axial sides is located at heat radiation plate (5)
Inside, top sealing plate be located at the top in region；The trolley (2) includes the trolley of multiple series connections, each trolley
Rear portion be provided with thermal insulation board (10), furnace body is divided into multiple independent by the cooperation of the sealing plate (4) at the thermal insulation board and top
Region.
3. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that: in the furnace body (1)
Region is arid region, carbonizes region, charing region and cooling region in advance.
4. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that: in each region
Top is provided with samming blower (8), and the fan blade of the samming blower (8) is located at operation interval (9) top in furnace body region.
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) it is connect by the pipeline air-introduced machine external with furnace body (1).
7. continuous tunnel kiln retort in subregion according to claim 1, it is characterised in that: the furnace body (1) is
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) it is supported and is fixed by one to two cylinder (12).
9. continuous tunnel kiln retort in subregion according to claim 3, it is characterised in that: the charing region or combustion
Burning region or cooling region is one or more region.
10. continuous tunnel kiln retort in subregion 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820867951.2U CN208308782U (en) | 2018-06-06 | 2018-06-06 | Subregion continuous tunnel kiln retort |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820867951.2U CN208308782U (en) | 2018-06-06 | 2018-06-06 | Subregion continuous tunnel kiln retort |
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| CN208308782U true CN208308782U (en) | 2019-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641734A (en) * | 2018-06-06 | 2018-10-12 | 陈学锋 | Subregion continuous tunnel kiln retort |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641734A (en) * | 2018-06-06 | 2018-10-12 | 陈学锋 | Subregion continuous tunnel kiln retort |
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