CN105805727A - Rice husk charcoal pyrolysis oven flue gas processing system - Google Patents
Rice husk charcoal pyrolysis oven flue gas processing system Download PDFInfo
- Publication number
- CN105805727A CN105805727A CN201610145230.6A CN201610145230A CN105805727A CN 105805727 A CN105805727 A CN 105805727A CN 201610145230 A CN201610145230 A CN 201610145230A CN 105805727 A CN105805727 A CN 105805727A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- smoke
- processing system
- hopper
- expansion chamber
- 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.)
- Granted
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000003546 flue gas Substances 0.000 title claims abstract description 37
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 28
- 235000009566 rice Nutrition 0.000 title claims abstract description 28
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 title claims description 16
- 239000010903 husk Substances 0.000 title abstract description 3
- 239000003610 charcoal Substances 0.000 title abstract 3
- 240000007594 Oryza sativa Species 0.000 title 1
- 238000002485 combustion reaction Methods 0.000 claims abstract description 54
- 239000002245 particle Substances 0.000 claims abstract description 47
- 241000209094 Oryza Species 0.000 claims abstract description 27
- 238000009826 distribution Methods 0.000 claims abstract description 16
- 239000002028 Biomass Substances 0.000 claims abstract description 10
- 239000000779 smoke Substances 0.000 claims description 61
- 239000004071 soot Substances 0.000 claims description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 229910052799 carbon Inorganic materials 0.000 claims description 24
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Coke Industry (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a rice hull charcoal pyrolysis furnace flue gas treatment system which comprises a biomass particle combustor, a flue gas combustion chamber, an ash particle settling chamber, a chimney and accessory equipment. Wherein, the flue gas combustion chamber and the ash particle settling chamber are integrated equipment. The biomass particle combustion machine comprises a hopper, an air distribution mechanism positioned below the hopper, a fire nozzle inserted into a flue gas combustion chamber, a combustion-supporting air nozzle positioned on the fire nozzle, a flue gas inlet pipe positioned on the side surface of the flue gas combustion chamber, an ash particle settling chamber connected with the flue gas combustion chamber, an ash outlet door positioned on the lower side of the ash particle settling chamber, a flue gas outlet pipe connected with the ash particle settling chamber, and an exhaust device connected with the flue gas outlet pipe. The invention has the advantages of being capable of solving the problem that the flue gas of the rice husk charcoal pyrolysis furnace pollutes the environment and greatly reducing the emission of dust.
Description
Technical field
The present invention relates to a kind of smoke processing system field, be specifically related to process the set of system of rice hull carbon pyrolysis oven tail flue gas.
Background technology
Existing rice hull carbon production technology is to load in pyrolysis oven by rice hull carbon, and at a certain temperature, rice hull carbon pyrolysis, volatile matter and the imperfect combustion particulate matter of precipitation fall through the smoke stack emission of afterbody, and residue is rice hull carbon product.This rice hull carbon production technology belongs to imperfect combustion, containing substantial amounts of volatile matter (mainly CO, H2, CH4) and imperfect combustion particulate matter in its flue gas, it does not have through any process device, be directly discharged in air, cause serious atmospheric pollution.
In order to meet environmental requirement and reduce the smoke pollution harm to human body, tail flue gas must be carried out purified treatment, and the flue gas after purifying is entered air, to meet environmental requirement, it is thus desirable to rice hull carbon pyrolysis oven flue gas is carried out afterburning, the volatilization contained in flue gas is graded burning completely, it is therefore desirable to increase smoke processing system.
At present, it is not specifically designed for the pyrolysis smoke that rice hull carbon production process produces on the market and carries out the equipment and the system that process, directly by harmful fume emission to air in traditional production process, or directly natural gas or liquid fuel carry out afterburning, but this can consume the substantial amounts of energy, operating cost is too high, it is impossible to implement on a large scale, and be not collected processing to the soot particle produced after burning, cause environmental pollution.Energy utilization rate is low, and fume treatment is incomplete, does not meet environmental requirement.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of rice hull carbon pyrolysis oven smoke processing system, solves the smoke pollution problem produced in current rice hull carbon production process.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of rice hull carbon pyrolysis oven smoke processing system, including biomass particle burning machine, smoke combustion room, soot particle expansion chamber and exhaust apparatus；Wherein, described biomass particle burning machine includes hopper, air distribution mechanism, burner hearth；Described hopper is provided with vibrator, the outlet at bottom of hopper connects Pneumatic Feeder, the discharging opening of described Pneumatic Feeder stretches in burner hearth, described air distribution mechanism is positioned at hopper bottom, one air outlet of air distribution mechanism connects Pneumatic Feeder, and another air outlet of air distribution mechanism connects burner hearth bottom；Described burner hearth sidewall is provided with nozzles, and described nozzles are provided with combustion air spout, and the crater of nozzles inserts smoke combustion room, and the sidewall of described smoke combustion room is connected to flue gas inlet tube, and described flue gas inlet tube is provided with vacuum table；Described smoke combustion room and soot particle expansion chamber being integrally connected equipment, by the extension mouth having 30 degree smoke combustion room to soot particle expansion chamber；Described soot particle top of settling chamber connects exhaust apparatus by smoke outlet tube, and described smoke outlet tube is provided with zirconia probe and thermocouple thermometer, described smoke outlet tube be provided externally with water-cooling sandwich.
Further, described combustion air spout is provided with electric control valve, and described water-cooling sandwich is provided with motor switch；The signal output part of described zirconia probe, vacuum table and thermocouple thermometer connects peripheral control unit, and the output multi-channel control signal of described controller is provided with motor switch to the electric control valve of described combustion air spout, described water-cooling sandwich.
Further, the gradient of 15 ° it is provided with bottom described soot particle expansion chamber.
Further, if described burner hearth sidewall is provided with sight burner, the sidewall of described smoke combustion room is provided with sight burner.
Beneficial effect: a kind of rice hull carbon pyrolysis oven smoke processing system provided by the invention, can be complete by the volatile combustion in the flue gas of generation in current rice hull carbon production process, and collect the soot particle processed in flue gas, make final smoke evacuation no longer contains atmosphere pollution, comply fully with environmental requirement.Wherein, biomass particle burning machine is fuel used for rice husk, gathers materials on the spot, and treatment in accordance with local conditions, operating cost is low, good economy performance.Vibrating device on hopper is possible to prevent the feed problems because causing when fuel humidity hardens together.Air distribution mechanism not only provides required oxygen for biological particles burning in burner hearth, returns Pneumatic Feeder and provides source of the gas power, make granule be uniformly distributed in burner hearth.Water-cooling sandwich on smoke outlet tube, open when temperature is too high pass into cooling water flue gas is cooled down, it is prevented that flue-gas temperature is too high and damages exhaust apparatus.Soot particle expansion chamber bottom is designed as the gradient of 15 °, it is simple to ash discharge.
Accompanying drawing explanation
Fig. 1 is the rice hull carbon pyrolysis oven smoke processing system structural representation of the present invention；
Fig. 2 is the rice hull carbon pyrolysis oven smoke processing system front view of the present invention；
Fig. 3 is smoke combustion room-soot particle expansion chamber longitudinal sectional drawing；
Fig. 4 is smoke combustion room-soot particle expansion chamber horizontal sectional drawing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1 and Figure 2, a kind of rice hull carbon pyrolysis oven smoke processing system, including biomass particle burning machine, smoke combustion room 11, soot particle expansion chamber 16 and exhaust apparatus 22.Wherein, biomass particle burning machine includes hopper 1, air distribution mechanism 3, burner hearth 6.Hopper 1 side is provided with vibrator 2 near outlet at bottom position, and this vibrator 2 is possible to prevent fuel in hopper 1 to have some setbacks problem because of the charging caused when humidity hardens together.The outlet at bottom of hopper 1 connects Pneumatic Feeder, and the discharging opening 4 of Pneumatic Feeder stretches in burner hearth 6.Air distribution mechanism 3 is positioned at hopper 1 bottom, and an air outlet of air distribution mechanism 3 connects Pneumatic Feeder, and another air outlet 5 of air distribution mechanism 3 connects bottom burner hearth 6；It is to provide required oxygen for biological particles burning in burner hearth, connecting Pneumatic Feeder and be to provide for the wind of pneumatic transportation fuel, it is possible to make fuel particle be uniformly distributed in burner hearth bottom connection burner hearth 6.Burner hearth 6 sidewall is provided with nozzles 9, and nozzles 9 are provided with combustion air spout 10, and combustion air spout 10 is provided with electric control valve, and the crater of nozzles 9 inserts smoke combustion room 11.Burner hearth 6 sidewall is provided with sight burner 7, is used for monitoring furnace flame combustion case.
Being connected to flue gas inlet tube 14 on the sidewall of smoke combustion room 11, flue gas inlet tube 14 is provided with vacuum table 12.Such as Fig. 3, smoke combustion room 11 and soot particle expansion chamber 16 being integrally connected equipment, outside is provided with the refractory material 23 with good thermal insulation property.Smoke combustion room 11 is designed as rectangle, and the sidewall of smoke combustion room 11 is provided with sight burner 15；Soot particle expansion chamber 16 is designed as hexagon, is provided with the gradient of 15 ° bottom soot particle expansion chamber 16, carrys out ash discharge thus convenient from the ash hole 17 bottom it.As shown in Figure 4, the cross-sectional area of smoke combustion room 11 is less than soot particle expansion chamber 16, by the extension mouth having 30 degree smoke combustion room 11 to soot particle expansion chamber 16.
Soot particle expansion chamber 16 top connects exhaust apparatus 22 by smoke outlet tube 20, and smoke outlet tube 20 is provided with zirconia probe 18 and thermocouple thermometer 19, smoke outlet tube 20 be provided externally with water-cooling sandwich 21.In the present embodiment, exhaust apparatus 22 is chimney.
The signal output part of zirconia probe 18, vacuum table 12 and thermocouple thermometer 19 connects peripheral control unit, and the electric control valve outputting a control signal to combustion air spout 10 and the cold interlayer 21 of controller are provided with motor switch.
When smoke processing system works, biomass granule fuel by hopper 1, is entered burner hearth 6 by Pneumatic Feeder and burns under the effect of vibration of vibrator 2, and the flame that burning produces enters smoke combustion room 11 by nozzles 9；With the next rice hull carbon cracking gas mixed combustion to flue gas inlet tube 14 in smoke combustion room 11, soot particle and flue gas that burning produces enter soot particle expansion chamber 16 and settle, and the temperature maintaining smoke combustion room 11 and soot particle expansion chamber 16 is 1000 to 1200 DEG C.Smoke combustion room 11 cross-sectional area is little, is conducive to rice hull carbon cracking gas and flame to be fully contacted burning completely；Due to by the extension mouth having 30 degree smoke combustion room 11 to soot particle expansion chamber 16, so that smoke combustion room 11 is significantly expanded to flow area after soot particle expansion chamber, so that flue gas stream speed reduces, big soot particle settles down due to the effect of gravity, discharged by ash hole 16, the residue flue gas without soot particle enters chimney by smoke outlet tube 20, is ultimately discharged into air, thus reaching to purify the dual function that rice hull carbon pyrolysis smoke can make again soot particle settle.
Wherein, the sight burner 7 arranged on burner hearth 6 is used for monitoring combustion case in stove, according to the air distribution regulating air distribution mechanism that the combustion case in stove is suitable, makes to reach best combustion operating mode.Flue gas inlet tube 14 is provided with vacuum table 12, is used for monitoring the negative pressure at flue gas inlet tube 14 place, increase air-introduced machine power when negative pressure is less, make gas approach place be in negative pressure state all the time.Smoke outlet tube 20 is provided with zirconia probe 18, one end of zirconia probe 18 is inserted in smoke outlet tube, it is used for the oxygen content measuring in the flue gas of exit, the other end connects controller, and controller carries out oxygen content analysis, if oxygen content is relatively low, then illustrate that air capacity is not enough, should increasing combustion air, controller outputs a control signal to the electric control valve of combustion air spout 10, increases intake and makes burning complete.Smoke outlet tube 20 is provided with thermocouple thermometer 19, is used for measuring the temperature of exhanst gas outlet, if flue-gas temperature is too high, then opens the valve of water-cooling sandwich 21, be used for reducing flue-gas temperature, in order to avoid flue-gas temperature is too high burns out chimney 22.
The above is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (4)
1. a rice hull carbon pyrolysis oven smoke processing system, it is characterised in that: include biomass particle burning machine, smoke combustion room (11), soot particle expansion chamber (16) and exhaust apparatus (22)；Wherein, described biomass particle burning machine includes hopper (1), air distribution mechanism (3), burner hearth (6)；Described hopper (1) is provided with vibrator (2), the outlet at bottom of hopper (1) connects Pneumatic Feeder, the discharging opening (4) of described Pneumatic Feeder stretches in burner hearth (6), described air distribution mechanism (3) is positioned at hopper (1) bottom, one air outlet of air distribution mechanism (3) connects Pneumatic Feeder, and another air outlet (5) of air distribution mechanism (3) connects burner hearth (6) bottom；Described burner hearth (6) sidewall is provided with nozzles (9), described nozzles (9) are provided with combustion air spout (10), the crater of nozzles (9) inserts smoke combustion room (11), being connected to flue gas inlet tube (14) on the sidewall of described smoke combustion room (11), described flue gas inlet tube (14) is provided with vacuum table (12)；Described smoke combustion room (11) and soot particle expansion chamber (16) being integrally connected equipment, by the extension mouth having 30 degree smoke combustion room (11) to soot particle expansion chamber (16)；Described soot particle expansion chamber (16) top connects exhaust apparatus (22) by smoke outlet tube (20), described smoke outlet tube (20) is provided with zirconia probe (18) and thermocouple thermometer (19), described smoke outlet tube (20) be provided externally with water-cooling sandwich (21).
2. rice hull carbon pyrolysis oven smoke processing system according to claim 1, it is characterised in that: described combustion air spout (10) is provided with electric control valve, and described water-cooling sandwich (21) is provided with motor switch；The signal output part of described zirconia probe (18), vacuum table (12) and thermocouple thermometer (19) connects peripheral control unit, and the output multi-channel control signal of described controller is provided with motor switch to the electric control valve of described combustion air spout (10), described water-cooling sandwich (21).
3. rice hull carbon pyrolysis oven smoke processing system according to claim 1 and 2, it is characterised in that: described soot particle expansion chamber (16) bottom is provided with the gradient of 15 °.
4. according to the arbitrary described rice hull carbon pyrolysis oven smoke processing system of claim 1-3, it is characterized in that: described burner hearth (6) is if sidewall is provided with sight burner (7), and the sidewall of described smoke combustion room (11) is provided with sight burner (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145230.6A CN105805727B (en) | 2016-03-14 | 2016-03-14 | Rice husk charcoal pyrolysis oven flue gas processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145230.6A CN105805727B (en) | 2016-03-14 | 2016-03-14 | Rice husk charcoal pyrolysis oven flue gas processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105805727A true CN105805727A (en) | 2016-07-27 |
| CN105805727B CN105805727B (en) | 2018-10-30 |
Family
ID=56468459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610145230.6A Expired - Fee Related CN105805727B (en) | 2016-03-14 | 2016-03-14 | Rice husk charcoal pyrolysis oven flue gas processing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN105805727B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201137944Y (en) * | 2007-08-29 | 2008-10-22 | 周伟 | Mixed combustion apparatus |
| KR20140137844A (en) * | 2013-05-24 | 2014-12-03 | 주식회사 엠에스비이이 | Wood pellet burners |
| CN204337969U (en) * | 2014-11-18 | 2015-05-20 | 马鞍山市顺达环保设备有限公司 | A kind of high-temperature flue gas pipeline dedusting pretreatment integrating device |
| CN104676578A (en) * | 2015-03-24 | 2015-06-03 | 杭州美宝炉窑工程有限公司 | Secondary combustion air supplementation device for biofuel combustion furnace |
| CN105042573A (en) * | 2015-06-28 | 2015-11-11 | 广东噢美投资有限公司 | Technology for increasing temperature of hot burning tail gas of biomass |
| CN205026655U (en) * | 2015-10-09 | 2016-02-10 | 辽宁精化科技有限公司 | Biomass inflamer of tangential feed |
| CN205079246U (en) * | 2015-10-15 | 2016-03-09 | 中国第一汽车股份有限公司 | Device is used multipurposely to rice husk carbomorphism tail gas |
-
2016
- 2016-03-14 CN CN201610145230.6A patent/CN105805727B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201137944Y (en) * | 2007-08-29 | 2008-10-22 | 周伟 | Mixed combustion apparatus |
| KR20140137844A (en) * | 2013-05-24 | 2014-12-03 | 주식회사 엠에스비이이 | Wood pellet burners |
| CN204337969U (en) * | 2014-11-18 | 2015-05-20 | 马鞍山市顺达环保设备有限公司 | A kind of high-temperature flue gas pipeline dedusting pretreatment integrating device |
| CN104676578A (en) * | 2015-03-24 | 2015-06-03 | 杭州美宝炉窑工程有限公司 | Secondary combustion air supplementation device for biofuel combustion furnace |
| CN105042573A (en) * | 2015-06-28 | 2015-11-11 | 广东噢美投资有限公司 | Technology for increasing temperature of hot burning tail gas of biomass |
| CN205026655U (en) * | 2015-10-09 | 2016-02-10 | 辽宁精化科技有限公司 | Biomass inflamer of tangential feed |
| CN205079246U (en) * | 2015-10-15 | 2016-03-09 | 中国第一汽车股份有限公司 | Device is used multipurposely to rice husk carbomorphism tail gas |
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| CN105805727B (en) | 2018-10-30 |
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