CN107129813B - Carbonization heat preservation and sealing carbon discharging system of rotary pyrolysis furnace - Google Patents
Carbonization heat preservation and sealing carbon discharging system of rotary pyrolysis furnace Download PDFInfo
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- CN107129813B CN107129813B CN201710495619.8A CN201710495619A CN107129813B CN 107129813 B CN107129813 B CN 107129813B CN 201710495619 A CN201710495619 A CN 201710495619A CN 107129813 B CN107129813 B CN 107129813B
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- heat
- carbonization
- carbon
- level gauge
- discharging
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- 238000003763 carbonization Methods 0.000 title claims abstract description 59
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 44
- 238000004321 preservation Methods 0.000 title claims abstract description 31
- 238000007599 discharging Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 title claims abstract description 14
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 238000004062 sedimentation Methods 0.000 claims abstract description 9
- 238000011068 loading method Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000003756 stirring Methods 0.000 abstract description 3
- 239000002028 Biomass Substances 0.000 description 7
- 239000002023 wood Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 239000003610 charcoal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000571 coke Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C10B33/00—Discharging devices; Coke guides
- C10B33/02—Extracting coke with built-in devices, e.g. gears, screws
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention provides a carbonization heat-insulation and sealed carbon-discharging system of a rotary pyrolysis furnace, which comprises a heat-insulation carbonization device and a sealed carbon-discharging device, wherein the heat-insulation carbonization device is a cylinder body which is vertically arranged, the bottom of the carbonization heat-insulation device is connected with the sealed carbon-discharging device, a sedimentation separation bin is arranged at the top of the heat-insulation carbonization device, an upper part and a lower part of the heat-insulation carbonization device are respectively provided with a loading level gauge and a discharging level gauge, and a perturber for stirring internal biological carbon is arranged at the middle part in the heat-insulation carbonization device. The invention has the heat preservation carbonization stage, is suitable for the operation environment of equipment under the high temperature condition, has low use cost and high carbon yield, improves the curing degree of the carbon, and particularly, the process is carried out in the sealing equipment, and the inside biological carbon is not contacted with the outside, thereby effectively ensuring the curing degree and the quality of the carbon.
Description
Technical Field
The invention relates to the technical field of pyrolysis furnaces, in particular to a carbonization heat preservation and carbon discharging system of a rotary pyrolysis furnace, and specifically relates to a carbonization heat preservation and sealing carbon discharging system of a rotary pyrolysis furnace.
Background
The invention discloses a Chinese patent application, which discloses a patent application number 201610904485.6, and is named as a method for modifying broad-leaved wood by mild carbonization heat at high temperature, wherein saturated steam is used as a heating and protecting medium, and the wood is subjected to mild carbonization heat treatment for 1-3 hours in a closed environment at 120-160 ℃, and the method comprises the following steps:
1. and (3) heating: raising the temperature of the wood from normal temperature to 100 ℃;
2. and (3) a drying stage: slowly increasing the temperature to 120 ℃;
3. carbonization: performing heat preservation and carbonization heat treatment on the wood for 1-3 hours at the temperature of 120-160 ℃;
4. and (3) cooling and balancing: and stopping heating after carbonization, performing steam spraying and humidity conditioning treatment, cooling to 35-45 ℃ and discharging from the kiln.
The advantages are that: 1. the internal growth stress and the drying stress of the wood can be relaxed, and the buckling deformation and cracking of the wood are prevented; 2. the wood has small hygroscopicity, good dimensional stability and corrosion resistance, no toxicity and no pollution; 3. the treatment process is efficient, energy-saving and environment-friendly.
Chinese patent application publication No. 200380100706.5, entitled invention patent for a coke drum bottom de-heading system, has an inner shroud closure and a shroud end cap that is flanged open to a coke drum bottom de-heading valve that is capable of receiving the end of a door valve upon actuation. A door seal assembly acts with the shroud enclosure to prevent steam from escaping, with a door seal slidably engaged against the sliding door to prevent steam from passing therethrough.
At present, a fixed bed biomass carbonization technology and a moving bed biomass carbonization technology are mainly developed in China. The moving bed biomass carbonization equipment has the advantages of good production continuity, high production rate, stable product quality and the like, and becomes the key point of the development of biomass carbonization technical equipment. The biomass continuous carbonization poly-generation technical equipment has bottlenecks such as stable and orderly conveying of materials, high-temperature resistant sealing and transmission, safety early warning and explosion prevention, combined tar removal and the like, and the key technology is broken through, so that the biomass continuous carbonization poly-generation technical equipment can be an important technical support for continuous biomass carbonization and carbon gas oil poly-generation.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides a carbonization heat-preservation and sealing carbon-discharging system of a rotary pyrolysis furnace, which is used as a light and simplified agriculture and forestry waste treatment device, is applied to vast rural areas, and the whole device requires economic application and has popularization and application values in rural areas with relatively lagged economic whole. Therefore, the equipment is required to have good tightness and proper heat preservation carbonization stage, is suitable for the operation environment of the equipment under the high-temperature condition, has low use cost and high carbon yield, improves the curing degree of the carbon, and particularly, the process is carried out in the sealing equipment, and the inside biological carbon is not contacted with the outside, so that the curing degree and the quality of the carbon can be effectively ensured.
The invention provides a carbonization heat-preservation and sealing carbon-discharging system of a rotary pyrolysis furnace, which comprises a heat-preservation carbonization device and a sealing carbon-discharging device, wherein the heat-preservation carbonization device is a cylinder body which is vertically arranged, and the bottom of the carbonization heat-preservation device is connected with the sealing carbon-discharging device.
Preferably, a sedimentation separation bin is arranged at the top of the heat-preservation carbonization device.
Preferably, the upper part and the lower part of the heat-preservation carbonization device are respectively provided with an upper material level gauge and a lower material level gauge.
Preferably, a perturbator for stirring the internal biological carbon is arranged at the middle position in the heat-preservation carbonization device.
Preferably, the sealed carbon outlet device is a conveying auger which is obliquely arranged, a sleeve is sleeved outside the conveying auger, and the feeding side of the conveying auger and the sleeve is lower than the discharging side and forms an angle of 20-45 degrees with the horizontal plane.
Preferably, a cooling water channel is arranged in the sleeve, the cooling water channel is a water inlet close to the discharging side, and a water outlet close to the feeding side.
Preferably, the sleeve is also provided with a screw drive motor for driving the conveying auger.
Preferably, the spiral transmission motor is connected with a middle shaft of the auger for conveying a discharge hole of the auger, and the connection mode is one of a chain, a gear, a belt or a coupling.
The beneficial effect of adopting this technical scheme is:
the device directly enters into the carbonization heat preservation device from the biological carbon that subsides in the subsidence separation storehouse, and biological carbon in the carbonization heat preservation device then directly enters into sealed play charcoal device, and this process is whole to be gone on in sealing equipment, and inside biological carbon does not contact with the external world, effectively guarantees can play charcoal curing degree and play charcoal quality.
Under the condition that the traditional equipment is not provided with a heat preservation carbonization device, the biochar yield is 29.97%, and the fixed carbon content is 55.63%; after the heat preservation carbonization device is added, the biochar yield is 31.5%, the fixed carbon content is 57.2%, and the performance is improved; the quality of the produced carbon is related to the curing degree of the produced carbon, and when the curing degree of the produced carbon is improved, the quality of the produced carbon is correspondingly improved.
Drawings
FIG. 1 is a schematic diagram of a carbonization heat preservation and sealed carbon outlet system.
The figure shows: 1. the device comprises a sedimentation separation bin 2, a heat preservation carbonization device 3, a loading level gauge 4, a perturber 5, a discharging level gauge 6, a conveying auger 7, a carbon outlet 8, a screw drive motor 9, a sleeve, 10, a water outlet 11 and a water inlet.
Detailed Description
For convenience of explanation, the carbonization heat preservation and sealing carbon discharging system of the rotary pyrolysis furnace is described in detail below with reference to the accompanying drawings.
As shown in the figure, a carbonization heat preservation and sealing carbon discharging system of a rotary pyrolysis furnace is characterized in that: the device comprises a heat-insulating carbonization device, wherein the heat-insulating carbonization device 2 is of a cylindrical hollow structure, and an upper level gauge and a lower level gauge are arranged on the side wall of the heat-insulating carbonization device 2 and used for respectively detecting the positions of materials.
The top of the thermal insulation carbonization device 2 is provided with a sedimentation separation bin 1, and biological carbon subjected to sedimentation separation enters the carbonization thermal insulation device 2.
The loading level gauge 3 and the unloading level gauge 5 are sensors, the model is C181-2, the working voltage is 220V 50HZ, and the length of the control rod is 300mm.
The sensor specifically comprises a rotation resistance level gauge: the rotation-resisting material level switch uses a miniature motor as a driving device, a transmission shaft is connected with a clutch, when the miniature motor does not contact materials, the motor normally operates, when blades contact the materials, the motor stops rotating, a detection device outputs a contact signal, and meanwhile, a power supply is cut off to stop rotating; when the materials descend, the resistance of the blades disappears, and the detection device is restored to the original state by means of the torsion spring; the torsion of the torsion bar can be adjusted for different weight materials.
The middle part of the thermal insulation carbonization device 2 is provided with a perturbator 4, a transmission device is arranged outside the perturbator 4, and the effect of stirring the biochar in the carbonization thermal insulation device is achieved through the action of the perturbator 4.
The heat preservation carbomorphism device 2 bottom be equipped with sealed carbon outlet device, because inside is equipped with spiral auger, also known as spiral water-cooling carbon outlet device, the device slope sets up, the device includes that the inside is equipped with goes out charcoal transport auger 6, and the outside is equipped with sleeve pipe 9, still be equipped with the water route that is used for the cooling effect in the sleeve pipe 9, the rivers cooling is on the pipe wall of oblique spiral sleeve pipe 9, rivers flow to the delivery port 10 of feed side through the water inlet 11 top-down that is close the discharge side and reach refrigerated purpose, reach the purpose of water and biochar heat transfer through the pipe wall heat transfer, inclination is 20-45 in general, the feed side is less than the discharge side, when the angle is too big, water velocity is too fast, the cooling effect is not good.
The spiral water-cooling carbon outlet device is provided with a spiral transmission motor 8, and the spiral transmission motor 8 is used for driving the inside carbon outlet auger 6 and is provided with a carbon outlet 7.
The material enters the feeding bin through the feeding device, the starting and stopping of the feeding machine are controlled by the real-time signals of the feeding level gauge 3 and the discharging level gauge 5, so that the height of the material in the feeding bin is always maintained between the feeding level gauge 3 and the discharging level gauge 5, on one hand, the feeding system effectively seals by utilizing the material, and on the other hand, the material is prevented from overflowing from the bin.
The function of the perturbator 4 is to provide fluidity of the biochar while providing product quality by dialing the material, preventing bridging and arching thereof.
In the process design, the biochar generated by thermal decomposition is not directly discharged, the biochar enters the heat-preserving carbonization device through the sedimentation separation bin, the heat preservation and the curing are continued for a certain time, and the cured biochar is discharged from the system through the cooling device.
In the process design, the curing time is 40-60min after entering the heat preservation carbonization device.
While the foregoing embodiments have been described with respect to the preferred embodiments of the present invention, it will be apparent that many variations are possible in the inventive concepts herein, and it should be understood that any variations that fall within the inventive concepts herein are intended to be within the scope of the invention.
Claims (1)
1. A carbonization heat preservation and sealing carbon discharging system of a rotary pyrolysis furnace is characterized in that: comprises a heat preservation carbonization device (2) and a sealed carbon outlet device;
the heat-preservation carbonization device (2) is of a cylindrical hollow structure, and an upper level gauge and a lower level gauge are arranged on the side wall of the heat-preservation carbonization device (2) to respectively detect the positions of materials;
the top of the heat-preserving carbonization device (2) is provided with a sedimentation separation bin (1), and biological carbon subjected to sedimentation separation enters the heat-preserving carbonization device (2);
the loading level gauge (3) and the unloading level gauge (5) are sensors, the model is C181-2, the working voltage is 220V 50HZ, and the length of the control rod is 300mm;
the material enters a feeding bin through a feeding device, and the starting and stopping of a feeding machine are controlled by real-time signals of a feeding level gauge (3) and a discharging level gauge (5), so that the height of the material in the feeding bin is always maintained between the feeding level gauge (3) and the discharging level gauge (5);
the sensor specifically comprises a rotation resistance level gauge: the rotation-resisting material level switch uses a miniature motor as a driving device, a transmission shaft is connected with a clutch, when the miniature motor does not contact materials, the motor normally operates, when blades contact the materials, the motor stops rotating, a detection device outputs a contact signal, and meanwhile, a power supply is cut off to stop rotating; when the materials descend, the resistance of the blades disappears, and the detection device is restored to the original state by means of the torsion spring;
the middle part of the heat-preserving carbonization device (2) is provided with a perturbator (4), and a transmission device is arranged outside the perturbator (4);
the biochar generated by thermal decomposition is not directly discharged, the biochar enters a thermal insulation carbonization device (2) through a sedimentation separation bin, and is continuously cured for 40-60min under thermal insulation, and the cured biochar is discharged from the system through a cooling device;
the bottom of the heat-preservation carbonization device (2) is provided with a sealed carbon outlet device, because the inside is provided with a spiral auger, also called a spiral water-cooling carbon outlet device, the device is obliquely arranged, the device comprises a carbon outlet conveying auger (6) arranged in the inside, a sleeve (9) is arranged outside, a waterway for cooling is also arranged in the sleeve (9), water flow cooling is acted on the pipe wall of the oblique spiral sleeve (9), water flows to a water outlet (10) at the feeding side from top to bottom through a water inlet (11) close to the discharging side to achieve the aim of cooling, the heat exchange of the water and the biochar is achieved through heat transfer of the pipe wall, and the inclination angle is 20-45 degrees, and the feeding side is lower than the discharging side;
the spiral water-cooling carbon outlet device is provided with a spiral transmission motor (8), and the spiral transmission motor (8) is used for driving an internal carbon outlet auger (6) and is provided with a carbon outlet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495619.8A CN107129813B (en) | 2017-06-26 | 2017-06-26 | Carbonization heat preservation and sealing carbon discharging system of rotary pyrolysis furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495619.8A CN107129813B (en) | 2017-06-26 | 2017-06-26 | Carbonization heat preservation and sealing carbon discharging system of rotary pyrolysis furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107129813A CN107129813A (en) | 2017-09-05 |
| CN107129813B true CN107129813B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710495619.8A Active CN107129813B (en) | 2017-06-26 | 2017-06-26 | Carbonization heat preservation and sealing carbon discharging system of rotary pyrolysis furnace |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828434B (en) * | 2017-11-29 | 2023-11-14 | 光泽县绿也炭业有限公司 | Continuous rotary biomass pyrolysis carbonization equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004096706A1 (en) * | 2003-04-29 | 2004-11-11 | Tao Li | The processes for producing and regenerating the seamless activated carbon and products obtained by the said processes |
| CN101214956A (en) * | 2008-01-15 | 2008-07-09 | 章水根 | Method and device for producing inside and outside thermal combined two-stage continuous activated carbon |
| CN101712876A (en) * | 2009-11-25 | 2010-05-26 | 商丘三利新能源有限公司 | Continuous carbonizing apparatus |
| CN204981751U (en) * | 2015-07-16 | 2016-01-20 | 农业部规划设计研究院 | Continuous pyrolysis and carbonization of living beings seals charge -in system |
| CN105950193A (en) * | 2016-05-13 | 2016-09-21 | 农业部规划设计研究院 | Dual-power rotary poly-generation system for continuous biomass dry distillation |
-
2017
- 2017-06-26 CN CN201710495619.8A patent/CN107129813B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004096706A1 (en) * | 2003-04-29 | 2004-11-11 | Tao Li | The processes for producing and regenerating the seamless activated carbon and products obtained by the said processes |
| CN101214956A (en) * | 2008-01-15 | 2008-07-09 | 章水根 | Method and device for producing inside and outside thermal combined two-stage continuous activated carbon |
| CN101712876A (en) * | 2009-11-25 | 2010-05-26 | 商丘三利新能源有限公司 | Continuous carbonizing apparatus |
| CN204981751U (en) * | 2015-07-16 | 2016-01-20 | 农业部规划设计研究院 | Continuous pyrolysis and carbonization of living beings seals charge -in system |
| CN105950193A (en) * | 2016-05-13 | 2016-09-21 | 农业部规划设计研究院 | Dual-power rotary poly-generation system for continuous biomass dry distillation |
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| CN107129813A (en) | 2017-09-05 |
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