CN208475335U - A kind of grate-type refuse gasification device with inherent filtration function - Google Patents
A kind of grate-type refuse gasification device with inherent filtration function Download PDFInfo
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- CN208475335U CN208475335U CN201821047504.9U CN201821047504U CN208475335U CN 208475335 U CN208475335 U CN 208475335U CN 201821047504 U CN201821047504 U CN 201821047504U CN 208475335 U CN208475335 U CN 208475335U
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Abstract
The utility model relates to a kind of grate-type refuse gasification device with inherent filtration function, including feed hopper, sealing device, garbage percolation liquid separating apparatus, gasification furnace and vertical shaft；The feed inlet of sealing device and the discharge port of feed hopper connect, and the feed inlet of garbage percolation liquid separating apparatus is connected by the discharge port of expects pipe and sealing device；Gasification furnace is converted garbage by combustion reaction as synthesis gas and clinker, and the height of gasification furnace feed inlet is lower than the height of garbage percolation liquid separating apparatus discharge port；The feed end of vertical shaft is connect with the discharge port of garbage percolation liquid separating apparatus, and the discharge end of vertical shaft and the feed inlet of gasification furnace connect.The device can complete the gasification of rubbish well, inherent filtration purification is carried out to synthesis gas further through rubbish itself, other raw materials are not expended, heating is dried to rubbish simultaneously, the abundant progress for being conducive to gasification has many advantages, such as that refuse gasification is high-efficient, synthesis gas quality is high, environment protecting is good, economy is strong.
Description
Technical field
The utility model relates to technical field of garbage disposal equipment, and in particular to a kind of grate-type with inherent filtration function
Refuse gasification device.
Background technique
With the rapid development of economy, the rubbish that China generates every year constantly increases.It is counted according to China Statistical Yearbook, only
Domestic waste one, in recent years the whole nation amount of clearing average increment be 377.4 ten thousand t/a, average growth rate 2.35%,
The house refuse cleared of the whole nation in 2016 is 203,620,000 tons, 19673.8 ten thousand tons of harmless treatment, wherein burning 7378.4 ten thousand tons.
China's processing common method of domestic waste has sanitary landfill method, composting method and incineration method.Sanitary landfill method
Long processing period takes up a large area, and there are certain requirements to the processing of Leachate site, methane, hydrogen sulfide etc., composting method process range
It is narrow, and have Peculiar Smell, incineration method cost of investment is high, and generates the harmful substances such as dioxin, heavy metal.
Refuse gasification can be realized higher efficiency of carbon con version and production capacity, the synthesis gas of generation after purification can directly into
Row burning, power generation are prepared as more advanced chemicals, while significantly reducing the atmosphere pollution such as dioxin etc
The discharge of object, has broad application prospects, but the charcoal that the flow rate of conventional refuse gasification boiler generation is low, uncombusted
The disadvantages of black floccule is more, macromolecular chain tar is more, deflagration phenomenon is frequent, simultaneously synthesizing gas purification process is complex and cost
It is higher, directly restrict the development of gasification technology.
Chinese Patent Application No. is that the patent document of ZL201521054015.2 discloses a kind of clinical waste joint disposition
System, composition includes: level-one gasified boiler system, second reactor, afterheat utilizing system, synthetic gas cleaning system and synthesis gas
It further include the third-stage reactor for disposing clinker and flying dust, wherein the second reactor and third-stage reactor using system
Equipped with plasma generating system.But content of carbon black in the synthesis gas of the level-one gasified boiler system of this disposal system generation
It is still very high, enormous pressure is caused to purification system and follow-up system.
Utility model content
The purpose of this utility model is to provide a kind of grate-type refuse gasification device with inherent filtration function, to solve
The certainly existing gasification furnace problem low in the presence of the carbon black and safety that can not be effectively removed in synthesis gas.
To achieve the above object, the utility model provides a kind of grate-type refuse gasification device with inherent filtration function,
The device can complete the gasification of rubbish well, carry out inherent filtration purification to synthesis gas further through rubbish itself, do not expend it
His raw material, while heating is dried to rubbish, is conducive to the abundant progress of gasification, has that refuse gasification is high-efficient, synthesis gas
The advantages that quality is high, environment protecting is good, economy is strong.The grate-type refuse gasification device with inherent filtration function include into
Hopper, the grate-type refuse gasification device with inherent filtration function further include:
Sealing device, the sealing device are set to the lower section of the feed hopper, the feed inlet of the sealing device and institute
State the discharge port connection of feed hopper；
The feed inlet of garbage percolation liquid separating apparatus, the garbage percolation liquid separating apparatus is filled by expects pipe and the sealing
The discharge port connection set, the garbage percolation liquid separating apparatus is for separating rubbish with the Leachate site in rubbish；
Gasification furnace, the gasification furnace are converted garbage by combustion reaction as synthesis gas and clinker, the gasification furnace charging
The height of mouth is lower than the height of the garbage percolation liquid separating apparatus discharge port；
Vertical shaft, the feed end of the vertical shaft are connect with the discharge port of the garbage percolation liquid separating apparatus, the vertical shaft
Discharge end is connect with the feed inlet of the gasification furnace, when work, rubbish is stored in the vertical shaft, falls synthesis gas by rubbish filtering
In bulky grain carbon black and the tar that is adhered to each other with carbon black, complete inherent filtration, while so that rubbish has been obtained drying again.
Preferably, the sealing device is to roller dispenser or double-layer flap valve.
Preferably, the garbage percolation liquid separating apparatus includes separator shell, upper section fire grate and at least one infiltration drip
The feed inlet of liquid collection bucket, the separator shell connect connection with the discharge port of the sealing device by the expects pipe,
The discharge port of the separator shell is connect with the feed end of the vertical shaft, is provided with conjunction at the top of the separator shell
It is exported at gas, the upper section fire grate is set to the lower part of the separator shell, the feed direction and water of the upper section fire grate
Plane has angle, and the leachate collecting bucket is set to the lower section of the upper section fire grate, each leachate collecting bucket
Liquid outlet is connect by different comb with leachate collecting pipe.
Preferably, the junction of the feed inlet of the expects pipe and the separator shell is provided with the first pusher.
Preferably, the gasification furnace includes gasification furnace shell, lower section fire grate, start-up burner and slag extractor, the gasification
The feed inlet of furnace shell is connect with the discharge end of the vertical shaft, the charging of the discharge port and the slag extractor of the gasification furnace shell
Mouth connection, the lower section fire grate are set to the lower part of the gasification furnace shell, the feed direction and horizontal plane of the lower section fire grate
It has angle, the lower section fire grate is in turn divided into gasification section, burning zone and after-flame section, the lower section from feed end to discharge end
The lower section of every section of fire grate is correspondingly arranged at least one aggregate bin, and discharge port, Mei Gesuo is arranged in the lower part of each aggregate bin
The side wall for stating aggregate bin is provided with a wind inlet connecting with First air main pipeline, and the start-up burner is set to the gas
Change one end on furnace shell and close to its discharge port.
Preferably, venting is provided at the top of the gasification furnace shell.
Preferably, the feed inlet of the gasification furnace shell and the junction of the vertical shaft lower end are provided with the second pusher.
Preferably, the slag extractor is wet type slag extractor.
Preferably, first pusher, upper section fire grate, lower section fire grate, the second pusher are by Driven by Hydraulic Cylinder.
Preferably, the start-up burner is scalable start-up burner.
The utility model has the advantages that
(1) due to being provided with vertical shaft, can be fallen by the rubbish filtering wherein stored bulky grain carbon black in synthesis gas and
The tar being adhered to each other with carbon black makes synthesis gas cleannes with higher.
(2) gasification zone is again introduced into rubbish and is gasified again by carbon black and tar that rubbish filtering in vertical shaft comes out, energy
It is high to measure utilization rate.
(3) rubbish itself is heated drying while filtering synthesis gas, and moisture content reduces, and temperature is promoted, after being conducive to
The progress of continuous gasification.
(4) temperature of the synthesis gas after vertical shaft can be changed by adjusting the rubbish height in vertical shaft, be subsequent system
System is provided convenience.
(5) system uses stoker fired grate, and the smoothness of garbage feeding and deslagging has been effectively ensured, has realized the continuous of gasification
Property.
(6) leachate collecting bucket and discharge guiding pipe are provided with below upper section fire grate, the structure of discharge guiding pipe can effectively prevent seeping
The biogas that drip liquid generates enters gasification furnace, causes danger to running gasification furnace.
In conclusion this system is truly realized the high efficient resourcing of refuse gasification, it is more suitable for general use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of grate-type refuse gasification device of the utility model with inherent filtration function.
Drawing reference numeral explanation: 1, feed hopper；2, sealing device；3, expects pipe；4, garbage percolation liquid separating apparatus；5, vertical shaft；
6, gasification furnace；41, separator shell；42, upper section fire grate；43, leachate collecting bucket；44, syngas outlet；45, different row
Pipe；46, leachate collecting pipe；47, the first pusher；51, Biodge device is broken；61, gasify furnace shell；62, lower section fire grate；63, point
Ignition combustor；64, slag extractor；65, aggregate bin；66, a wind inlet；67, First air main pipeline；68, venting；69, second
Pusher；621, gasification section；622, burning zone；623, after-flame section.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1, should with inherent filtration function grate-type refuse gasification device include feed hopper 1, sealing device 2,
Garbage percolation liquid separating apparatus 4, gasification furnace 6 and vertical shaft 5, further, it is also possible to add other auxiliary devices, as blower, hydraulic station,
The equipment such as closed cooling tower.
The rubbish of the present embodiment processing is to pass through pretreated house refuse, without big part and moisture control 35% with
It is interior.
Feed hopper 1 imports sealing device 2 for storing rubbish, and by rubbish.Feed hopper 1 is conventional grate-type waste incineration
The feed hopper 1 of furnace, rubbish reserves are greater than 0.5h treating capacity, to guarantee the stability of garbage feeding.
Sealing device 2 is set to the lower section of feed hopper 1, and the feed inlet of sealing device 2 is connect with the discharge port of feed hopper 1；
Sealing device 2 is, by rotating inward in opposite directions to roller, waste steady to be sent into expects pipe 3 to roller dispenser in the present embodiment,
Simultaneously can also effectively prevent outside air leak into or flue gas evolution, guarantee the leakproofness of system, avoid environmental pollution.
In tubular construction, expects pipe 3 is vertical or is obliquely installed for expects pipe 3, and the size of 3 discharge port of expects pipe is greater than the ruler of feed inlet
It is very little, it is ensured that rubbish is smooth under gravity to be passed through, a possibility that reduce rubbish blocking expects pipe 3, when work, in expects pipe 3
Be stored with sufficiently high rubbish, effectively prevent outside air leak into or flue gas evolution.
Garbage percolation liquid separating apparatus 4 is for separating rubbish with the Leachate site in rubbish, garbage percolation liquid separating apparatus 4
Pass through including separator shell 41, upper section fire grate 42 and two leachate collecting buckets 43, the feed inlet of separator shell 41
Expects pipe 3 is connect with the discharge port of sealing device 2, and the discharge port of separator shell 41 is connect with the feed end of vertical shaft 5, separation dress
The top for setting shell 41 is provided with syngas outlet 44, and the synthesis gas after rubbish filtering passes through 44 row of syngas outlet
Out.
Upper section fire grate 42 is set to the lower part of separator shell 41, and the feed direction and horizontal plane of upper section fire grate 42 are at one
Angle (i.e. height of the height of 42 feed end of upper section fire grate higher than discharge end), upper section fire grate 42 are reciprocating in the present embodiment
Stoker fired grate, upper section fire grate 42 can be moved back and forth by Driven by Hydraulic Cylinder, upper section fire grate 42 along its discharging direction, thus will charging
The rubbish at end is delivered to vertical shaft 5.
Leachate collecting bucket 43 is set to the lower section of upper section fire grate 42, and the quantity of leachate collecting bucket 43 is not limited to two
It is a, it is determined with specific reference to the length of upper section fire grate 42.The liquid outlet of each leachate collecting bucket 43 is dripped by different comb 45 with infiltration
Liquid collecting pipe 46 connects, and different comb 45 is made of a U-tube and an inverted U-tube series winding, and different comb 45 is conducive to prevent
The biogas that Leachate site generates enters gasification furnace 6, causes danger to gasification furnace 6.During rubbish is moved along upper section fire grate 42,
Most of Leachate site in rubbish can be flowed downwardly into leachate collecting bucket 43 by the gap of upper section fire grate 42, pass through different comb
45 flow into leachate collecting pipe 46, then are conveyed to later collection processing equipment by leachate collecting pipe 46 and are collected and locate
Reason.Further, the junction of the feed inlet of expects pipe 3 and separator shell 41 is provided with the first pusher 47, the first pusher
Device 47 can continuously be pushed to the rubbish of 3 lower end of expects pipe by moving back and forth by Driven by Hydraulic Cylinder, the first pusher 47
The feed end of upper section fire grate 42.
The discharge end of vertical shaft 5 is connect with the feed inlet of gasification furnace shell 61, and in tubular construction, vertical shaft 5 is tilted or erected vertical shaft 5
Straight setting, vertical shaft 5 constitute inherent filtration space.When work, it is stored with rubbish in vertical shaft 5, is fallen in synthesis gas by rubbish filtering
Bulky grain carbon black and the tar being adhered to each other with carbon black complete inherent filtration process, itself is again while rubbish filtering synthesis gas
It is dry to be synthesized gas, is subsequent combustion as preparation.The height of rubbish can pass through control upper section fire grate 42 and lower end furnace in vertical shaft 5
The movement of row is realized, not only can guarantee filter effect, but also adjustable rubbish layer resistance.Temperature reduces after synthesis gas passes through rubbish, rubbish
The temperature drop of the higher synthesis gas of the height of the rubbish bed of material is bigger, and the temperature drop of the lower synthesis gas of the height of the rubbish bed of material is smaller, therefore passes through
Adjust the height of rubbish in vertical shaft 5, it is ensured that the temperature drop of synthesis gas is kept in the reasonable scope.The size of 5 discharge port of vertical shaft is big
In the size of feed inlet, guarantees that rubbish is smooth and pass through vertical shaft 5.Further, broken Biodge device 51 is equipped in vertical shaft 5, when there is rubbish
When rubbish blocks vertical shaft 5, is operated by controlling broken Biodge device 51, effectively vertical shaft 5 can be dredged, guarantee the smoothness that rubbish passes through.
Gasification furnace 6 includes gasification furnace shell 61, lower section fire grate 62, start-up burner 63 and slag extractor 64, and gasify furnace shell
61 discharge port is connect with the feed inlet of slag extractor 64, and the height of gasification 61 feed inlet of furnace shell is lower than separator shell 41
The height of discharge port.Further, the top of gasification furnace shell 61 is in inclined-plane, and bootable synthesis gas moves back up.Into one
Step, the top of gasification furnace shell 61 is provided with venting 68, when encountering detonation situation in 6 operational process of gasification furnace, in order to
Guarantee the safety of gasification furnace shell 61, venting 68 is the position that exploding gas destroys at first, to improve a whole set of gasification installation
Safety.
Lower section fire grate 62 is set to the lower part of gasification furnace shell 61, and the feed direction and horizontal plane of lower section fire grate 62 are at a folder
Angle (i.e. height of the height of 62 feed end of lower section fire grate higher than discharge end), lower section fire grate 62 is reciprocating machine fire grate, lower section
Fire grate 62 can be moved back and forth by Driven by Hydraulic Cylinder along the discharging direction of lower section fire grate 62.
According to change procedure of the rubbish on lower section fire grate 62, lower section fire grate 62 is in turn divided into from feed end to discharge end
Gasification section 621, burning zone 622 and after-flame section 623, rubbish generate synthesis gas in gasification section 621, carry out in burning zone 622 endless
Full burning, uncombusted carbon burns away in after-flame section 623 until after-flame becomes clinker, wherein 621 gasification reaction of gasification section
Required energy from rubbish burning zone 622 and after-flame section 623 combustion reaction.In the present embodiment, 621 He of gasification section
Burning zone 622 be same fire grate, and after-flame section 623 be an individual fire grate, certainly, can also every section a furnace is separately provided
Row, is determined with specific reference to actual effect.The lower section of every section of lower section fire grate 62 is correspondingly arranged on an aggregate bin 65, Mei Geji
Discharge port is arranged in the lower part of hopper 65, and aggregate bin 65 is for collecting the carbon slag or clinker leaked under every section of lower section fire grate 62, Mei Geji
The side wall of hopper 65 is provided with a wind inlet 66 connecting with First air main pipeline 67, gives every section of lower section by an air inlet
Fire grate 62 is supplied, and the reaction efficiency of rubbish is improved.
Start-up burner 63 is set on gasification furnace shell 61 and close to one end of its discharge port.Start-up burner 63 is used for
It comes into operation in igniting, in the present embodiment, start-up burner 63 is scalable start-up burner 63, and fuel is light diesel fuel,
Start-up burner 63 can stop and exit after lighting a fire successfully, be burned to prevent stop ignition combustor 63.
Further, the feed inlet of gasification furnace shell 61 and the junction of 5 lower end of vertical shaft are provided with the second pusher 69, the
Two pushers 69 also by Driven by Hydraulic Cylinder, can equally be pushed away the rubbish that vertical shaft 5 is fallen by the reciprocating motion of the second pusher 69
It send to lower section fire grate 62.
Gasification furnace 6 is discharged in the clinker that slag extractor 64 is used to generate rubbish completely burned, in the present embodiment slag extractor 64
For wet type slag extractor, wet type slag extractor operate normally in be full of water, water level is controlled by automatic water-replenishing device, can cooling furnace
Slag, and maintain the leakproofness of system.Clinker after cooling is taken away by scrapper conveyor.
In specific implementation method, using the main work for the grate-type refuse gasification device for having inherent filtration in the present embodiment
It is as follows to make process:
(1) rubbish is pre-processed first, and house refuse needs sorting, screening, is crushed.Enter the requirement of furnace rubbish without big part, contains
35% or less water rate.
(2) rubbish is sent into feed hopper 1 through feeding system by bunker.
(3) starting carries out feeding to roller dispenser, upper section fire grate 42, lower section fire grate 62 and the first pusher 47.
(4) starting ignition burner 63 carries out opening furnace, and rubbish initial burning burns after furnace temperature increases to a certain extent.
(5) primary air fan being equipped with is 6 air distribution of gasification furnace by a wind inlet 66, passes through the electricity on frequency converter and air hose
Dynamic baffle door realizes the adjusting into furnace air quantity.
(6) lower section fire grate 62 is driven by hydraulic stem, guarantee after furnace material reaction is complete can smooth deslagging, realize gasification
Continuity.
(7) by the adjustment of lower section fire grate 62 movement and air quantity, 600 DEG C of 623 temperature of after-flame section, 622 temperature of burning zone are maintained
800 DEG C of degree, 750 DEG C of 621 temperature of gasification section.
(8) height for adjusting rubbish in vertical shaft 5, maintains 700 DEG C of 621 temperature of gasification section.
(9) refuse gasification generate synthesis gas against rubbish and on, pass through vertical shaft 5, after the filtering of rubbish in vertical shaft 5,
Bulky grain carbon black and the tar content being adhered to each other with carbon black are greatly reduced, and compared to the gasification installation of no inherent filtration, carbon black contains
Amount reduces 80% or more.
(10) synthesis gas enters in separator shell 41, is finally discharged by syngas outlet 44, at this time the heat of synthesis gas
It is worth up to 5000kJ/m3More than.
Embodiment 2
The rubbish of the present embodiment processing is by high-temperature sterilization, broken clinical waste.
The present embodiment with inherent filtration function grate-type refuse gasification device equally include feed hopper 1, sealing device 2,
Garbage percolation liquid separating apparatus 4, gasification furnace 6 and vertical shaft 5, further, it is also possible to add other auxiliary devices, as blower, hydraulic station,
The equipment such as closed cooling tower.
Feed hopper 1 imports sealing device 2 for storing rubbish, and by rubbish.Feed hopper 1 is conventional grate-type waste incineration
The feed hopper 1 of furnace, rubbish reserves are greater than 1h treating capacity, to guarantee the stability of garbage feeding.
Sealing device 2 is set to the lower section of feed hopper 1, and the feed inlet of sealing device 2 is connect with the discharge port of feed hopper 1；
Sealing device 2 is double-layer flap valve in the present embodiment, and in operational process, at least one layer closing effectively prevent outside air
It leaks into or flue gas escapes, guarantee the leakproofness of system, avoid environmental pollution.
In tubular construction, expects pipe 3 is vertical or is obliquely installed for expects pipe 3, and the size of 3 discharge port of expects pipe is greater than the ruler of feed inlet
It is very little, it is ensured that rubbish is smooth under gravity to be passed through, a possibility that reduce rubbish blocking expects pipe 3, when work, in expects pipe 3
Be stored with sufficiently high rubbish, effectively prevent outside air leak into or flue gas evolution.
Garbage percolation liquid separating apparatus 4 is for separating rubbish with the Leachate site in rubbish, garbage percolation liquid separating apparatus 4
Pass through including separator shell 41, upper section fire grate 42 and two leachate collecting buckets 43, the feed inlet of separator shell 41
Expects pipe 3 is connect with the discharge port of sealing device 2, and the discharge port of separator shell 41 is connect with the feed end of vertical shaft 5, separation dress
The top for setting shell 41 is provided with syngas outlet 44, and the synthesis gas after rubbish filtering passes through 44 row of syngas outlet
Out.
Upper section fire grate 42 is set to the lower part of separator shell 41, and the feed direction and horizontal plane of upper section fire grate 42 are at one
Angle (i.e. height of the height of 42 feed end of upper section fire grate higher than discharge end), upper section fire grate 42 are reciprocating in the present embodiment
Stoker fired grate, upper section fire grate 42 are not needed to be passed through air by Driven by Hydraulic Cylinder, 42 lower part of upper section fire grate without air compartment.
Leachate collecting bucket 43 is set to the lower section of upper section fire grate 42, and the quantity of leachate collecting bucket 43 is not limited to two
It is a, it is determined with specific reference to the length of upper section fire grate 42.The liquid outlet of each leachate collecting bucket 43 is dripped by different comb 45 with infiltration
Liquid collecting pipe 46 connects, and different comb 45 is made of a U-tube and an inverted U-tube series winding, and different comb 45 is conducive to prevent
The biogas that Leachate site generates enters gasification furnace 6, causes danger to gasification furnace 6.During rubbish is moved along upper section fire grate 42,
Most of Leachate site in rubbish can be flowed downwardly into leachate collecting bucket 43 by the gap of upper section fire grate 42, pass through different comb
45 flow into leachate collecting pipe 46, then are conveyed to later collection processing equipment by leachate collecting pipe 46 and are collected and locate
Reason.Further, the junction of the feed inlet of expects pipe 3 and separator shell 41 is provided with the first pusher 47, the first pusher
Device 47 can continuously be pushed to the rubbish of 3 lower end of expects pipe by moving back and forth by Driven by Hydraulic Cylinder, the first pusher 47
The feed end of upper section fire grate 42.
The discharge end of vertical shaft 5 is connect with the feed inlet of gasification furnace shell 61, and in tubular construction, vertical shaft 5 is tilted or erected vertical shaft 5
Straight setting, vertical shaft 5 constitute inherent filtration space.When work, it is stored with rubbish in vertical shaft 5, is fallen in synthesis gas by rubbish filtering
Bulky grain carbon black and the tar being adhered to each other with carbon black complete inherent filtration process, itself is again while rubbish filtering synthesis gas
It is dry to be synthesized gas, is subsequent combustion as preparation.The height of rubbish can pass through control upper section fire grate 42 and lower end furnace in vertical shaft 5
The movement of row is realized, not only can guarantee filter effect, but also adjustable rubbish layer resistance.Temperature reduces after synthesis gas passes through rubbish, rubbish
The temperature drop of the higher synthesis gas of the height of the rubbish bed of material is bigger, and the temperature drop of the lower synthesis gas of the height of the rubbish bed of material is smaller, therefore passes through
Adjust the height of rubbish in vertical shaft 5, it is ensured that the temperature drop of synthesis gas is kept in the reasonable scope.The size of 5 discharge port of vertical shaft is big
In the size of feed inlet, guarantees that rubbish is smooth and pass through vertical shaft 5.Further, broken Biodge device 51 is equipped in vertical shaft 5, when there is rubbish
When rubbish blocks vertical shaft 5, is operated by controlling broken Biodge device 51, effectively vertical shaft 5 can be dredged, guarantee the smoothness that rubbish passes through.
Gasification furnace 6 includes gasification furnace shell 61, lower section fire grate 62, start-up burner 63 and slag extractor 64, and gasify furnace shell
61 discharge port is connect with the feed inlet of slag extractor 64, and the height of gasification 61 feed inlet of furnace shell is lower than separator shell 41
The height of discharge port.Further, the top of gasification furnace shell 61 is in inclined-plane, and bootable synthesis gas moves back up.Into one
Step, the top of gasification furnace shell 61 is provided with venting 68, when encountering detonation situation in 6 operational process of gasification furnace, in order to
Guarantee the safety of gasification furnace shell 61, venting 68 is the position that exploding gas destroys at first, to improve a whole set of gasification installation
Safety.
Lower section fire grate 62 is set to the lower part of gasification furnace shell 61, and the feed direction and horizontal plane of lower section fire grate 62 are at a folder
Angle (i.e. height of the height of 62 feed end of lower section fire grate higher than discharge end), lower section fire grate 62 is reciprocating machine fire grate, lower section
Fire grate 62 can be moved back and forth by Driven by Hydraulic Cylinder along the discharging direction of lower section fire grate 62.
According to change procedure of the rubbish on lower section fire grate 62, lower section fire grate 62 is in turn divided into from feed end to discharge end
Gasification section 621, burning zone 622 and after-flame section 623, rubbish generate synthesis gas in gasification section 621, carry out in burning zone 622 endless
Full burning, uncombusted carbon burns away in after-flame section 623 until after-flame becomes clinker, wherein 621 gasification reaction of gasification section
Required energy from rubbish burning zone 622 and after-flame section 623 combustion reaction.In the present embodiment, 621 He of gasification section
Burning zone 622 be same fire grate, and after-flame section 623 be an individual fire grate, certainly, can also every section a furnace is separately provided
Row, is determined with specific reference to actual effect.The lower section of every section of lower section fire grate 62 is correspondingly arranged on an aggregate bin 65, Mei Geji
Discharge port is arranged in the lower part of hopper 65, and aggregate bin 65 is for collecting the carbon slag or clinker leaked under every section of lower section fire grate 62, Mei Geji
The side wall of hopper 65 is provided with a wind inlet 66 connecting with First air main pipeline 67, gives every section of lower section by an air inlet
Fire grate 62 is supplied, and the reaction efficiency of rubbish is improved.
Start-up burner 63 is set on gasification furnace shell 61 and close to one end of its discharge port.Start-up burner 63 is used for
It comes into operation in igniting, in the present embodiment, start-up burner 63 is scalable start-up burner 63, and fuel is light diesel fuel,
Start-up burner 63 can stop and exit after lighting a fire successfully, be burned to prevent stop ignition combustor 63.
Further, the feed inlet of gasification furnace shell 61 and the junction of 5 lower end of vertical shaft are provided with the second pusher 69, the
Two pushers 69 also by Driven by Hydraulic Cylinder, can equally be pushed away the rubbish that vertical shaft 5 is fallen by the reciprocating motion of the second pusher 69
It send to lower section fire grate 62.
Gasification furnace 6 is discharged in the clinker that slag extractor 64 is used to generate rubbish completely burned, in the present embodiment slag extractor 64
For wet type slag extractor, wet type slag extractor operate normally in be full of water, water level is controlled by automatic water-replenishing device, can cooling furnace
Slag, and maintain the leakproofness of system.Clinker after cooling is taken away by chain mat machine.
In specific implementation method, using the main work for the grate-type refuse gasification device for having inherent filtration in the present embodiment
It is as follows to make process:
(1) clinical waste is first into high-temperature sterilization, broken.Enter the requirement of furnace rubbish without big part, 35% or less moisture content.
(2) clinical waste is sent into feed hopper 1 through feeding system by bunker.
(3) double-layer flap valve is successively opened, feeding is carried out.
(4) starting ignition burner 63 carries out opening furnace, and rubbish initial burning burns after furnace temperature increases to a certain extent.
(5) primary air fan being equipped with is 6 air distribution of gasification furnace by a wind inlet 66, passes through the electricity on frequency converter and air hose
Dynamic baffle door realizes the adjusting into furnace air quantity.
(6) lower section fire grate 62 is driven by hydraulic stem, guarantee after furnace material reaction is complete can smooth deslagging, realize gasification
Continuity.
(7) by the adjustment of lower section fire grate 62 movement and air quantity, 850 DEG C of 623 temperature of after-flame section, 622 temperature of burning zone are maintained
1000 DEG C of degree, 850 DEG C of 621 temperature of gasification section.
(8) height for adjusting rubbish in vertical shaft 5, maintains 800 DEG C of 621 temperature of gasification section.
(9) synthesis gas that clinical waste gasification generates against clinical waste and on, pass through vertical shaft 5, it is useless by medical treatment in vertical shaft 5
After the filtering of object, bulky grain carbon black and the tar content being adhered to each other with carbon black are greatly reduced, compared to the gasification of no inherent filtration
Device, content of carbon black reduce 90% or more.
(10) synthesis gas enters in separator shell 41, is finally discharged by syngas outlet 44, at this time the heat of synthesis gas
It is worth up to 5000kJ/m3More than.
By adopting the above scheme, the utility model has the advantages that
(1) due to being provided with vertical shaft 5, can be fallen by the rubbish filtering wherein stored bulky grain carbon black in synthesis gas and
The tar being adhered to each other with carbon black makes synthesis gas cleannes with higher.
(2) gasification zone is again introduced into rubbish and is gasified again by carbon black and tar that rubbish filtering in vertical shaft 5 comes out, energy
It is high to measure utilization rate.
(3) rubbish itself is heated drying while filtering synthesis gas, and moisture content reduces, and temperature is promoted, after being conducive to
The progress of continuous gasification.
(4) temperature of the synthesis gas after vertical shaft 5 can be changed by adjusting the rubbish height in vertical shaft 5, be subsequent
System is provided convenience.
(5) system uses stoker fired grate, and the smoothness of garbage feeding and deslagging has been effectively ensured, has realized the continuous of gasification
Property.
(6) lower section of upper section fire grate 42 is provided with leachate collecting bucket 43 and discharge guiding pipe, and the structure of discharge guiding pipe can effectively prevent
The biogas that only Leachate site generates enters gasification furnace 6, causes danger to running gasification furnace 6.
Although being above described in detail with generality explanation and specific embodiment to the utility model,
On the basis of the utility model, it can be modified or is improved, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (10)
1. a kind of grate-type refuse gasification device with inherent filtration function, the grate-type rubbish gas with inherent filtration function
Makeup is set including feed hopper, which is characterized in that the grate-type refuse gasification device with inherent filtration function further include:
Sealing device, the sealing device are set to the lower section of the feed hopper, the feed inlet of the sealing device and it is described into
The discharge port of hopper connects；
The feed inlet of garbage percolation liquid separating apparatus, the garbage percolation liquid separating apparatus passes through expects pipe and the sealing device
Discharge port connection, the garbage percolation liquid separating apparatus is for separating rubbish with the Leachate site in rubbish；
Gasification furnace, the gasification furnace are converted garbage by combustion reaction as synthesis gas and clinker, the gasification furnace feed inlet
Height is lower than the height of the garbage percolation liquid separating apparatus discharge port；
Vertical shaft, the feed end of the vertical shaft are connect with the discharge port of the garbage percolation liquid separating apparatus, the discharging of the vertical shaft
End connect with the feed inlet of the gasification furnace, and when work, the interior storage rubbish of the vertical shaft is fallen in synthesis gas by rubbish filtering
Bulky grain carbon black and the tar being adhered to each other with carbon black complete inherent filtration, while so that rubbish has been obtained drying again.
2. the grate-type refuse gasification device according to claim 1 with inherent filtration function, which is characterized in that described close
Encapsulation is set to roller dispenser or double-layer flap valve.
3. the grate-type refuse gasification device according to claim 2 with inherent filtration function, which is characterized in that the rubbish
Rubbish Leachate site separator includes separator shell, upper section fire grate and at least one leachate collecting bucket, the separator
The feed inlet of shell is connect by the expects pipe with the discharge port of the sealing device, the discharge port of the separator shell with
The feed end of the vertical shaft connects, and syngas outlet, the upper section fire grate setting are provided at the top of the separator shell
Feed direction in the lower part of the separator shell, the upper section fire grate has angle with horizontal plane, and the Leachate site is received
Collection bucket is set to the lower section of the upper section fire grate, and the liquid outlet of each leachate collecting bucket is received by different comb and Leachate site
Collector connection.
4. the grate-type refuse gasification device according to claim 3 with inherent filtration function, which is characterized in that the material
The junction of pipe and the feed inlet of the separator shell is provided with the first pusher.
5. the grate-type refuse gasification device according to claim 4 with inherent filtration function, which is characterized in that the gas
Change furnace includes gasification furnace shell, lower section fire grate, start-up burner and slag extractor, and the feed inlet of the gasification furnace shell is erected with described
The discharge end of well connects, and the discharge port of the gasification furnace shell is connect with the feed inlet of the slag extractor, and the lower section fire grate is set
It is placed in the lower part of the gasification furnace shell, the feed direction of the lower section fire grate has angle with horizontal plane, the lower section fire grate
It is in turn divided into gasification section, burning zone and after-flame section from feed end to discharge end, every section of lower section fire grate of the lower section correspondence is set
It is equipped at least one aggregate bin, discharge port is arranged in the lower part of each aggregate bin, and the side wall of each aggregate bin is provided with
A wind inlet connecting with First air main pipeline, the start-up burner are set on the gasification furnace shell and go out close to it
One end of material mouth.
6. the grate-type refuse gasification device according to claim 5 with inherent filtration function, which is characterized in that the gas
Change and is provided with venting at the top of furnace shell.
7. the grate-type refuse gasification device according to claim 6 with inherent filtration function, which is characterized in that the gas
The junction of the feed inlet and the vertical shaft lower end of changing furnace shell is provided with the second pusher.
8. having the grate-type refuse gasification device of inherent filtration function according to claim 5,6 or 7, which is characterized in that
The slag extractor is wet type slag extractor.
9. the grate-type refuse gasification device according to claim 7 with inherent filtration function, which is characterized in that described
One pusher, upper section fire grate, lower section fire grate, the second pusher are by Driven by Hydraulic Cylinder.
10. having the grate-type refuse gasification device of inherent filtration function according to claim 5,6 or 9, which is characterized in that
The start-up burner is scalable start-up burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821047504.9U CN208475335U (en) | 2018-06-29 | 2018-06-29 | A kind of grate-type refuse gasification device with inherent filtration function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821047504.9U CN208475335U (en) | 2018-06-29 | 2018-06-29 | A kind of grate-type refuse gasification device with inherent filtration function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592030A (en) * | 2018-06-29 | 2018-09-28 | 北京环境工程技术有限公司 | A kind of grate-type refuse gasification device with inherent filtration function |
| CN110715299A (en) * | 2019-10-10 | 2020-01-21 | 北京航空航天大学 | Plasma torch medical waste treatment system and application method thereof |
-
2018
- 2018-06-29 CN CN201821047504.9U patent/CN208475335U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592030A (en) * | 2018-06-29 | 2018-09-28 | 北京环境工程技术有限公司 | A kind of grate-type refuse gasification device with inherent filtration function |
| CN108592030B (en) * | 2018-06-29 | 2023-09-26 | 北京环境工程技术有限公司 | Fire grate type garbage gasification device with self-filtering function |
| CN110715299A (en) * | 2019-10-10 | 2020-01-21 | 北京航空航天大学 | Plasma torch medical waste treatment system and application method thereof |
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