CN204111697U - Mud is utilized to produce the pyrolysis gasifying device of inflammable gas - Google Patents
Mud is utilized to produce the pyrolysis gasifying device of inflammable gas Download PDFInfo
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- CN204111697U CN204111697U CN201420329490.5U CN201420329490U CN204111697U CN 204111697 U CN204111697 U CN 204111697U CN 201420329490 U CN201420329490 U CN 201420329490U CN 204111697 U CN204111697 U CN 204111697U
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Abstract
The utility model discloses a kind of pyrolysis gasifying device utilizing mud to produce inflammable gas, the opening for feed that this apparatus main body is an airtight straight tube housing, housing upper end connects a bell cover structure, housing lower end is positioned on slag dish, with water-lute between its slag dish and housing; Inner walls is tongue and groove shape, and install a solid diversion column at enclosure interior center, diversion column is carved with jagged diversion trench, and housing cavity forms mummification section, retort section, carbonization section, gasification section and burning zone from top to down; A waterway is established at the inwall of burning zone; Temperature probe is separately installed with in the hull outside of retort section, carbonization section, gasification section and burning zone; The utility model monomer vaporizes device can process the mud that 200 tons of water ratio are less than 60% day; Realize the minimizing of sludge treatment, innoxious, energy; Working cost is low: automatic operating and management can save a large amount of human cost; The average gasifiable generation 1600Nm of mud that one ton of water ratio is less than 30%
3inflammable gas.
Description
Technical field
The utility model belongs to field of Environment Protection, particularly relates to one and utilizes municipal sludge, pharmaceutical factory's mud, leather mud, and the mud containing organic constituent such as stationery and printing and dyeing class produces the pyrolysis gasifying device of inflammable gas.
Background technology
Along with the aggravation of China's water environment pollution, and the speed-raising of construction of wastewater treatment plant engineering, the process of sludge of sewage treatment plant is disposed and has been become a nationwide problem.A large amount of mud does not obtain safe process and disposes, thus causes the secondary pollution to environment, have impact on the effect of building sewage work to a great extent.
Lignin-sludge needs to follow " three change " principle, i.e. minimizing, innoxious, resource utilization.First, pollutent in mud is a lot, especially domestic, too many trade effluent enters municipal sewage plant, the sludge heavy-metal content produced is very high, add some microbiotic, persistence organic pollutant, environmental technology etc., a lot of mud can be referred to as danger wastes in fact at home, and seeking a kind of appropriate treatment process is in this case seem particularly important.
Landfill method mud is directly poured into after simple sterilising treatment low ground or valley floor, its less investment, instant effect, capacity are large, preferred manner normally in Sewage Plant construction project verification, but land-fill method also also exists the defect that self cannot make up, on the one hand landfill itself can not finally decontamination, and just delayed to pollute the time produced, therefore there is the hidden danger of secondary pollution; Landfill yard occupies a large amount of land resources on the other hand, becomes keeping in check of urban development.
Composting process makes fertilizer, Gardens soil, consumer waste filling and embedding earthing etc. after mud is carried out innoxious, stabilization treatment by the mode of compost.Apparently, mode of stacking can the objectionable impurities such as germ, virus, worm's ovum effectively in lignin-sludge, realizes the recycling of mud.
In fact, owing to containing a certain amount of heavy metal, organic pollutant and pathogenic bacteria etc. in mud, there is certain environment risk on compost is agricultural, need the soil to applying sludge, beneath water and crop etc. to carry out long-term fixed point monitoring after using, and its Maximal amount and the continuous administration time limit need be controlled.Static compost technique, the production cycle is long, and land occupation is many, and foul smell and mosquitos and flies are serious on the impact of surrounding environment, usually can only addressing at the remote sites away from urban district, thus communications and transportation problem still cannot solve, and transportation cost is higher, also there is transportation environment problem.According to industrialization, dynamic fermentation storehouse technique that level of automation is high, one-time investment and running cost will increase greatly.Simultaneously because sludge components is complicated, because heavy metal has storage effect in soil, the environmental problems such as heavy metal contamination can be caused to soil.
Burning method is a kind of means processed the most thoroughly in sludge disposal, and mud can be made to obtain innoxious and minimizing to greatest extent.But sludge incineration needs at high temperature to run, Technology is complicated, device one-time investment and during-operation service expense excessive, the smoke pollution air containing dioxin can be produced simultaneously in burning process, exacerbate the degree that city haze is polluted.In addition, expense of burning is higher, also needs a class energy such as Coal powder spray or diesel oil in combustion processes, and general area has no idea to accept, and again, it is a very large difficult problem that the dioxin produced in burning process is eliminated.
Summary of the invention:
For solving the secondary pollution problem of various defect or the generation also existed in all kinds of sludge handling process, the purpose of this utility model is to provide a kind of practical, minimizing of reaching sludge treatment, the mud that utilizes that is innoxious, resource utilization produces the pyrolysis gasifying device of inflammable gas; This device technique convenient operation and management, automatic operating monitoring be easy to realize, construction investment and working cost cheap, complete digestion can fall mud, raw a large amount of inflammable gass, stop or avoid producing the obnoxious flavoures such as dioxin in sludge treatment, it is easy to apply in the whole industry.
The technical solution of the utility model realizes in the following manner:
A kind of pyrolysis gasifying device utilizing mud to produce inflammable gas, this device belongs to integrated sealed pyrolysis gasifying device, the opening for feed that main body is an airtight straight tube housing, housing upper end connects a bell cover structure, housing lower end is positioned on slag dish, with water-lute between its slag dish and housing; Slag dish is provided with slag-drip opening, and air inlet duct is located at the bottom of slag dish and communicates with housing lower end; Inner walls is tongue and groove shape, and install a solid diversion column at enclosure interior center, diversion column is carved with jagged diversion trench, and the effect of these diversion trenchs guarantees that the heat energy that burning zone produces can fast at device internal diffusion; Housing cavity forms mummification section, retort section, carbonization section, gasification section and burning zone from top to down; Establish a waterway for reducing the temperature of burning zone at the inwall of burning zone; Temperature probe is separately installed with in the hull outside of retort section, carbonization section, gasification section and burning zone; The running status of pyrolysis gasifying device is controlled by its detected value;
The housing of retort section is provided with gas effusion upper port, gasification section housing on be provided with gas effusion lower port; Upper port is communicated with straight-through gas collector with lower port.
The height of described airtight straight tube housing is 20-30 meters, and diameter is 2-10 meters.
When the described upper and lower two ends of bell cover structure opening for feed are respectively equipped with unidirectional seal door above, unidirectional seal door below avoids charging, air enters gasification installation, establishes the flame-observing hole communicated with burning zone at the housing exterior walls of burning zone.
Positively effect of the present utility model is:
1) large-scale continuous production: monomer vaporizes device can process the mud that 200 tons of water ratio are less than 60% day.And run under full closeding state, do not produce the secondary pollution factor.
2) minimizing is remarkable: mud disposable decrement more than 60% can even reach 90% decrement after adopting gasifying process process.
3) thoroughly innoxious: primary mud, through high-temperature gasification process, can complete 100% and kill various harmful bacteria, remove stink completely.Debris and inorganics become slag after high-temp combustion, and the heavy metal of trace is changed to solid state shape by ionic state.
4) non-secondary pollution: do not produce dioxin obnoxious flavour, owing to being carry out pyrolytic gasification under oxygen deprivation state, avoids the condition producing dioxin effectively.
5) working cost is low: pyrolyzing sludge gasification does not need extraneous supplementary energy; Automatic operating and management can save a large amount of human cost.
6) a large amount of inflammable gas is produced: the average gasifiable generation 1600Nm of mud that one ton of water ratio is less than 30%
3the inflammable gas of left and right.Can save the primary energy source such as a large amount of coal, oil, Sweet natural gas, its primary energy source equivalent carbon emission of saving can carry out carbon trade in the international market, obtains considerable income.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the inner walls in Fig. 1;
Fig. 3 is the structural representation of the diversion column in Fig. 1;
embodiment:
Below in conjunction with drawings and Examples to the utility model is described in further detail:
As can be seen from Fig. 1, Fig. 2, Fig. 3: the opening for feed 2 that the utility model main body is an airtight straight tube housing, housing upper end connects a bell cover structure, housing lower end is positioned on slag dish 12, with water-lute between slag dish and housing; Slag dish 12 is provided with slag-drip opening 13, and air inlet duct 14 is located at the bottom of slag dish and communicates with housing lower end; Inner walls 17 is tongue and groove shape, and install a solid diversion column 18 at enclosure interior center, diversion column is carved with jagged diversion trench, and the effect of these diversion trenchs guarantees that the heat energy that burning zone produces can fast at device internal diffusion; Housing cavity forms mummification section 4, retort section 5, carbonization section 7, gasification section 8 and burning zone 11 from top to down; Establish a waterway 10 for reducing the temperature of burning zone at the inwall of burning zone; Temperature probe 6 is separately installed with in the hull outside of retort section 5, carbonization section 7, gasification section 8 and burning zone 11; The running status of pyrolysis gasifying device is controlled by its detected value;
Be it can also be seen that by Fig. 1: be provided with on the housing of retort section gas effusion upper port 16, gasification section housing on be provided with gas effusion lower port 15; Upper port 16 is communicated with straight-through gas collector with lower port 15.
Be it can also be seen that by Fig. 1: when described bell cover structure opening for feed about 2 two ends are respectively equipped with unidirectional seal door above 1, unidirectional seal door below 3 avoids charging, air enters gasification installation, establishes the flame-observing hole 9 communicated with burning zone at the housing exterior walls of burning zone.
When utilizing mud to produce the pyrolysis gasifying device of inflammable gas, concrete operation step is as follows:
The first step: bottom integrated sealed pyrolysis gasifying device, use coal or other fuel to carry out initialize igniting to make device internal temperature reach more than 1100 degree to form gasification environment, then a part of water ratio < 30% will dried in advance, weight is in 200kg mud granule pushing in device, by gas blower to burning zone delivering oxygen, in this case, mud granule is carbonized and gasifies, the uncombined carbon that carbonization produces and the gas that gasification produces wherein a part burn, make device produce certain temperature by the gas burning uncombined carbon and gasification generation that a part of mud is carbonized generation and form pyrolytic gasification environment, whole pyrolytic gasification process can be maintained run continuously.
Second step: mud after granulation is passed through bell jar feeder continually with conveying belt, the original state of bell jar is that seal door above and seal door below are closed, when until fill whole device, by the gap between mud granule, the diversion trench of device inwall and the diversion trench of diversion column, at heat that burning zone produces to gasification section, carbonization section, retort section and mummification section spread.Heat often all can consume through one section, reaching at each section of corresponding temperature, corresponding reaction can occur.When heat arrives mummification section, temperature is 90 ~ 150 DEG C, and constantly dry the part moisture content sloughing mud granule at this temperature, mud is exsiccation progressively, prepares for there is dry distillation reactor.
3rd step, the mud progressively after exsiccationization temperature 200 DEG C ~ 450 DEG C baking under, because macromolecular organism has thermolability, occur dry distillation reactor, larger molecular organics generation cracking generates a large amount of alkanes gas (C
mh
n) and a small amount of tar inflammable gas and water vapour (H
2o), these gases are overflowed from upper air outlet.From the molecular structure of dioxin, it is the primary condition that Dioxins generates that oxygen and chlorine element exist.In mud retort process, be in anoxic condition completely, the mud produced after inflammable gas through destructive distillation is carbonized again, then carry out oxidation and induction at high operating temperatures to react generate carbon monoxide with oxygen and water vapor, do not belong to mud directly to burn, therefore avoid the environment producing Dioxins, effectively can contain the generation of dioxin-like chemical.
4th step, the mud after destructive distillation, under 450 DEG C-1000 DEG C and anaerobic state, organic generation carburizing reagent, defines uncombined carbon.
5th step, after destructive distillation and carbonization, mud main residues is the material such as free charcoal and a small amount of clay, under the effect of 1000 DEG C of-1200 DEG C of temperature and water vapour, redox reaction occurs and produces carbon monoxide (CO), hydrogen (H
2) etc. inflammable gas, these gases lead to collector from the effusion of lower air outlet, and a small amount of gas also together can lead to collector from upper air outlet effusion by flow-guiding channel.
The organism of the 6th step mud is after destructive distillation, carbonization and gasification, and part uncombined carbon and inflammable gas burned generation carbonic acid gas (CO2) and inorganic slag, for the pyrolyzing sludge whole process lasts that gasifies constantly provides heat.This section of temperature can reach 1200 DEG C ~ 1300 DEG C.After said process, in mud, all kinds of bacteria pathogeny bacterium is thoroughly killed, and remaining inorganics is burnt till slag.
The temperature that 7th step works as retort section or carbonization section or gasification section exceedes burning zone temperature, oxygen-enriching device is regulated to reduce the oxygen level of air in air inlet duct, start the water cycle of waterway, and import a certain amount of water vapour enter burning zone to reduce the temperature of this section in air inlet duct, thus the temperature in setting device.If the temperature that the temperature of retort section or carbonization section or gasification section is arranged lower than this section, sending oxygen amount and startup slag dish and slag-drip opening to discharge some lime-ash by improving, carrying out the temperature of control combustion section, thus ensureing the pyrolytic gasification temperature of whole device.
8th step carries out deslagging by the combustion case of flame-observing hole manual observation burning zone or the temperature that recorded burning zone by temp measuring system lower than starting residue extraction mechanism after 900 DEG C, along with the discharge of bottom of device slag, segment space will be vacateed in bottom, the mud of device inside will move down because of self gravitation effect, enters different conversion zones successively and reacts.Then, start sludge transportation equipment, technological process, from second step, is gone round and begun again and is processed, and realizes continuous prodution.
The utility model Application Example is as follows:
Application examples one
Certain sewage work, producing 200 tons of water ratio every day is the mud of 80%, by after sludge dewatering treatment to water ratio be 59%, passing through and detecting its sludge calorific value is 2700kcal/kg, through process day 200 tons, water ratio be 60% the utility model technology and equipment process, the oxygen content arranging air inlet duct is 25%, carries out the treating processes of control device on this basis, and every day, the actual weight of lignin-sludge was 200 tons.Its gas heating value produced is 1000kcal/kg after tested.Not Han dioxin gaseous constituent in gas produced after testing, its gas main component is in table one
Application examples two
Certain sewage work, after sludge dewatering treatment, water ratio is 55%, sludge calorific value is 1650kcal/kg, the utility model technology and equipment through processing 100 tons (water ratio 60%) day processes, the oxygen content arranging air inlet duct is 25%, carry out the treating processes of control device on this basis, every day, lignin-sludge actual quantity was 110(water ratio 60%) ton, its gas heating value produced is 820kcal/kg after tested.Not Han dioxin gaseous constituent in gas produced after testing, its gas main component is in table two:
Application examples three
Certain pharmaceutical factory produces 150 tons, mud (water ratio 80%) every day, after its sludge dewatering treatment, water ratio is 57%, sludge calorific value is 3200kcal/kg, through process day 100 tons of water ratio be 60% the utility model technology and equipment process, the oxygen content arranging air inlet duct is 25%, carry out the treating processes of control device on this basis, every day, lignin-sludge actual quantity was that 120 tons (water ratio 60%) its gas heating value produced is after tested for 1900kcal/kg.Not Han dioxin gaseous constituent in gas produced after testing, its gas main component is in table three:
Claims (3)
1. the pyrolysis gasifying device utilizing mud to produce inflammable gas, the opening for feed (2) that pyrolysis gasifying device main body is an airtight straight tube housing, housing upper end connects a bell cover structure, housing lower end is positioned on slag dish (12), it is characterized in that: with water-lute between slag dish and housing; Slag dish (12) is provided with slag-drip opening (13), and air inlet duct (14) is located at the bottom of slag dish and communicates with housing lower end; Inner walls (17) is tongue and groove shape, one solid diversion column (18) is installed at enclosure interior center, diversion column is carved with jagged diversion trench, and housing cavity forms mummification section (4), retort section (5), carbonization section (7), gasification section (8) and burning zone (11) from top to down; Establish a waterway (10) at the inwall of burning zone, be separately installed with temperature probe (6) in the hull outside of retort section (5), carbonization section (7), gasification section (8) and burning zone (11): be provided with on the housing of retort section gas effusion upper port (16), gasification section housing on be provided with gas effusion lower port (15); Upper port (16) is communicated with lower port (15).
2. the mud that utilizes according to claim 1 produces the pyrolysis gasifying device of inflammable gas, it is characterized in that: the height of housing is that the height of housing is 20-30 meters, and diameter is 2-10 meters.
3. the pyrolysis gasifying device utilizing mud to produce inflammable gas according to claim 2, it is characterized in that: bell cover structure opening for feed (2) is respectively equipped with unidirectional seal door above (1), unidirectional seal door below (3) in two ends up and down, is provided with the flame-observing hole (9) communicated with burning zone at the housing exterior walls of burning zone.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329490.5U CN204111697U (en) | 2014-06-19 | 2014-06-19 | Mud is utilized to produce the pyrolysis gasifying device of inflammable gas |
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|---|---|---|---|
| CN201420329490.5U CN204111697U (en) | 2014-06-19 | 2014-06-19 | Mud is utilized to produce the pyrolysis gasifying device of inflammable gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789235A (en) * | 2015-04-20 | 2015-07-22 | 北京神雾环境能源科技集团股份有限公司 | Method and system for preparing biodiesel by sludge catalytic pyrolysis and gasification |
| CN108609821A (en) * | 2018-04-10 | 2018-10-02 | 广东国阳动力环保股份有限公司 | A kind of Pintsch process gasification system for sewage sludge harmlessness disposing |
-
2014
- 2014-06-19 CN CN201420329490.5U patent/CN204111697U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789235A (en) * | 2015-04-20 | 2015-07-22 | 北京神雾环境能源科技集团股份有限公司 | Method and system for preparing biodiesel by sludge catalytic pyrolysis and gasification |
| CN108609821A (en) * | 2018-04-10 | 2018-10-02 | 广东国阳动力环保股份有限公司 | A kind of Pintsch process gasification system for sewage sludge harmlessness disposing |
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