CN205424936U

CN205424936U - Vertical pyrolysis gasifier

Info

Publication number: CN205424936U
Application number: CN201620230986.6U
Authority: CN
Inventors: 王志斌; 陈和平; 周云峰; 饶品华; 程永伟; 邢涛
Original assignee: 江苏联兴成套设备制造有限公司
Priority date: 2016-03-24
Filing date: 2016-03-24
Publication date: 2016-08-03

Abstract

The utility model provides a vertical pyrolysis gasifier, includes the honeycomb duct of feed mechanism, mucking machine, honeycomb duct and water jacket intercommunication form the backward flow, vertical pyrolysis gasifier still includes sealing mechanism, work area and rabbling mechanism. Sealing mechanism include a sealing door, the 2nd sealing door, the 2nd sealing door set up in the furnace body upper end protruding department of V type, a sealing door and the 2nd sealing door can not open simultaneously, the work area includes dry section, pyrolysis gasification zone, combustion area, the furnace body of dry section upper end on be provided with the exhaust port, the rabbling mechanism is including going out the slag pan and mixing the charging tray, the play slag pan with mix the charging tray setting in the pivot of same root, be provided with the communicating hollow structure of being with the external world in the pivot. The utility model discloses not only sealing performance is good, work efficiency is high, has improved workshop operation workman's security environment in addition, avoided pyrolysis gas flow choking and lead to the fact explode stove hidden danger.

Description

A kind of vertical pyrolysis gasification furnace

Technical field

This utility model relates to energy-conserving and environment-protective field, particularly with regard to a kind of vertical pyrolysis gasification furnace.

Background technology

Resource and environment is the two principal themes of 21 century, and urban garbage disposal is the important topic in this two principal themes.Enhancing along with people's environmental resource consciousness, national governments' raising to technology of garbage disposal standard, traditional garbage disposal main method landfill, compost, three kinds of technology of burning demonstrate its defect day by day, as garbage loading embeading takies tract, composting process treating capacity is little, efficiency is low, burning method easily produces secondary pollution, the particularly pollution problem of dioxin (Dioxins) so that it is hindered in terms of commercial Application.It is little that refuse pyrolysis technology has secondary pollution, and innoxious thoroughly the feature that resource degree is high, is one of important technology processing rubbish, is just causing the extensive attention of countries in the world researcher.

China Patent Publication No. is the one way of life refuse pyrolysis gasification furnace of CN105273768A, including gasification furnace body, setting gauge, controlled exhaust tube, even distributing wind mechanism and automatic discharge apparatus；Described controlled exhaust tube has multiple, is evenly distributed on gasification furnace inner body wall vertically, connects with Gas Pipe, agitating device it is provided with in the middle part of vaporizer, the shaft of described agitating device is to be disposed with oxygen supply pore on hollow structure, and shaft, and the bottom of shaft is connected with apparatus of oxygen supply.Use after technique scheme, although temperature everywhere in stove can be efficiently controlled to a certain extent, make pyrolytic gasification smoothly carry out, but there is controlled exhaust tube easily to block, pyrolysis gasification furnace is easily revealed, and pyrolytic gasification efficiency is low, and lime-ash easily pollutes the defect of working environment.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art, this utility model provides a kind of vertical pyrolysis gasification furnace.

This utility model be employed technical scheme comprise that, a kind of vertical pyrolysis gasification furnace, including feed mechanism,

The mozzle of mucking machine, described mozzle connects formation backflow with water leg, and described vertical pyrolysis gasification furnace also includes sealing mechanism, working region and rabbling mechanism.

Described sealing mechanism includes that the first hermatic door, the second hermatic door, the second described hermatic door are arranged on stove

V-type prominence, body upper end, described first hermatic door and the second hermatic door can not be opened simultaneously；Described working region includes dry section, pyrolytic gasification district, combustion zone, the body of heater of described dry section upper end being provided with exhaust opening；Described rabbling mechanism includes slag pan and spice dish, described goes out slag pan and spice dish is arranged in same rotating shaft, be provided with in described rotating shaft communicate with the external world for hollow structure.

Described pyrolysis gasification furnace also includes combustion-supporting mechanism, and described combustion-supporting mechanism is by oil tank, oil pump and burning

Device form, effect be pyrolysis gasification furnace ignition trigger and auxiliary burner hearth heat up (when waste heating value is relatively low can not maintain own combustion time).

The energization solenoid of absorption magnetic metal material it is provided with on described feed mechanism four wall (part), can

To be adsorbed by the magnetic metal waste material in rubbish in advance, thus improve pyrolytic gasification efficiency of the present utility model.

Being provided with double roller feeder between described second hermatic door and dry section, the gap between two rollers can be adjusted

Whole.On the one hand it prevent from forming bigger space between thing and thing, causes skewness, and impact heat transfer, on the other hand, less rubbish is more beneficial for the transmission of heat.

The inverted round table shape and structure that described employing footpath, pyrolytic gasification district mouth is tapered, rational gradient and cone angle

Design can improve the utilization rate of raw material and furnace volume, improves the gasification efficiency of gasification furnace.Compare the height increasing layer of charcoal with cylinder, extend steam, CO₂With the time of contact of layer of charcoal so that more rubbish charcoal reacts.

As optimization, the described slag pan that goes out is arranged on bottom combustion zone, and described spice dish is arranged on pyrolytic gasification

In the middle part of district, described go out slag pan and spice dish is all beveled structure, go out slag pan and spice dish upper surface is additionally provided with convex teeth portion.

As optimization, the first described hermatic door and the second hermatic door are interlocks, the most only when upper strata door is in the state of closedown, lower floor's door just could be opened, the second described hermatic door uses smoke exhaust fire damper or butterfly valve structure to make, first hermatic door is closed when producing electric signal, and the second hermatic door is opened.

This utility model is also claimed one way of life garbage treating process; comprise the steps: that charging-vertical pyrolysis gasification furnace pyrolytic gasification-second-time burning-waste heat recovery-chilling deacidification--bag-type dust-detection enters air; combustion air is heated to about 200-300 DEG C by air cooler and is re-fed into vertical pyrolysis gasification furnace by the flue gas part after described waste heat recovery, to reduce combustion-supporting oilconsumption.

The beneficial effects of the utility model are as follows:

1 this utility model have employed two-door structure, and good seal performance, when charging, second hermatic door is closed, and the first hermatic door is opened, after upper strata hopper filled by rubbish, first hermatic door is automatically switched off, and the second hermatic door automatically turns on, and rubbish falls under gravity into working region.

2 this utility model install a spice dish rotated additional in pyrolytic gasification district, rely on the effect of centrifugal force to enable the rubbish outer wall motion of inside, make the heat energy contained by high-temperature flue gas disperse as much as possible, uniformly, thus improve reaction efficiency.

3 this utility model are by using the technical scheme of pyrolysis gasification furnace surrounding uniform welding mozzle, and mozzle connects with pyrolysis gasification furnace water leg, thus improve the security context of plant operations workman, it is to avoid pyrolysis gas Airflow obstruction and the quick-fried stove hidden danger that causes.

4 this utility model realize organic stratified carburation and fully decomposition in house refuse by pyrolysis gasification furnace, realizing fully burning and innoxious of gasifying gas by dual firing chamber, through UTILIZATION OF VESIDUAL HEAT IN and flue gas cooling, gas cleaning finally realizes the innoxious of garbage and minimizing processes and disposes.

Accompanying drawing explanation

Fig. 1 is the structural representation of pyrolysis gasification furnace of the present utility model；

Fig. 2 is the A-A sectional view of Fig. 1；

Fig. 3 is this utility model household-garbage processing process flow chart；

1 moisture trap 2 second hermatic door 3 exhaust opening 4 dry section 5 pyrolytic gasification in figure

Combustion zone, district 67 goes out slag pan 8 blower fan 9 tapping mechanism 10 feed mechanism 11 mozzle 12 water leg 13 combustion-supporting system 14 spice dish 15 energization solenoid.

Detailed description of the invention

The utility model is described in further detail below in conjunction with the accompanying drawings:

A kind of vertical pyrolysis gasification furnace, including feed mechanism 10, tapping mechanism 9, described Vertical Heat is vented one's spleen

Change and be evenly arranged several mozzles 11 avoiding pyrolysis gas Airflow obstruction on the inboard wall of furnace body of stove, described mozzle 11 connects formation backflow with water leg 12, described vertical pyrolysis gasification furnace also includes sealing mechanism, working region and rabbling mechanism, described sealing mechanism includes first hermatic door the 1, second hermatic door 2, the second described hermatic door 2 is arranged on V-type prominence, body of heater upper end, and described first hermatic door 1 can not be opened with the second hermatic door 2 simultaneously；Described working region includes dry section 4, pyrolytic gasification district 5, combustion zone 6, the body of heater of described dry section 4 upper end being provided with exhaust opening 3；Described rabbling mechanism includes slag pan 7 and spice dish 14, described goes out slag pan 7 and spice dish 14 is arranged in same rotating shaft, be provided with in described rotating shaft communicate with the external world for hollow structure.

Further, described pyrolysis gasification furnace also includes combustion-supporting mechanism 13, and described combustion-supporting mechanism 13 is made up of oil tank, oil pump and burner；The energization solenoid 15 of absorption magnetic metal material it is provided with on described feed mechanism 10 4 wall；Being provided with double roller feeder between described second hermatic door 2 and dry section 4, the gap between two rollers can adjust；Described pyrolytic gasification district 5 uses the inverted round table shape and structure that footpath mouth is tapered.

The described slag pan 7 that goes out is arranged on bottom combustion zone 6, and described spice dish 14 is arranged on pyrolytic gasification district 5

Middle part, described goes out slag pan 7 and spice dish 14 is all beveled structure, goes out slag pan 7 and spice dish 14 upper surface is additionally provided with convex teeth portion.This utility model mozzle 11 connects formation backflow with water leg 12, extend its service life, this temperature that will result in outside is too low, and the temperature drift at center, thus have impact on the response time, this utility model installs a spice dish 14 rotated additional in pyrolytic gasification district 5, relies on the effect of centrifugal force to enable the rubbish outer wall motion of inside, rely on the gravity of rubbish self simultaneously, enable the rubbish on top to move to bottom.

The first described hermatic door 1 and the second hermatic door 2 are interlocks, are i.e. only in closedown when upper strata door

State time, lower floor door just could be opened；The second described hermatic door 2 uses smoke exhaust fire damper or butterfly valve structure to make, and the first hermatic door 1 is closed when producing electric signal, and the second hermatic door 2 is opened.Owing to pyrolytic gasification is carried out under reducing atmosphere, therefore, it should be noted that prevent the infiltration of air when charging.This utility model have employed two-door structure.When charging, the second hermatic door 2 is closed, and the first hermatic door 1 is opened, and after upper strata hopper filled by rubbish, the first hermatic door 1 is automatically switched off, and the second hermatic door 2 automatically turns on, and rubbish falls under gravity into working region.

By ASMESEC II (boiler and pressure vessel code), the body of heater of this utility model pyrolysis gasification furnace uses SA387Gr11CL2 heat resisting steel, because the existence of Gr, Mo element, improve elevated temperature strength and creep rupture strength that steel works at a temperature of higher than 350 DEG C, this material also has good resistant to hydrogen corrosive power simultaneously.In all of chrome-molybdenum steel, the toughness of SA387Gr11CL2 sheet material, intensity, welding performance are relatively good, so the case material as reative cell uses.

A kind of household-garbage processing process using vertical pyrolysis gasification furnace, comprise the steps: that charging-vertical pyrolysis gasification furnace pyrolytic gasification-second-time burning-waste heat recovery-chilling deacidification-bag-type dust-detection enters air, combustion air is heated to about 200-300 DEG C by air cooler and is re-fed into vertical pyrolysis gasification furnace by the flue gas part after described waste heat recovery, to reduce combustion-supporting oilconsumption.

When being embodied as, enter the flue gas drying that first rubbish of pyrolysis gasification furnace risen by dry section 4, moisture evaporation therein in dryer section；Being decomposed into the combustible such as carbon monoxide, gaseous hydrocarbons in pyrolytic gasification district 5 and form mixed flue gas, mixed flue gas is inhaled into dual firing chamber's burning.

Residue after pyrolytic gasification (inorganic dirt that tar liquid, purer carbon element and rubbish itself contain and inert substance etc.) sinks to combustion zone 6 and fully burns, temperature is up to 1100-1300 DEG C, and its heat is used for providing energy needed for dry section 4, pyrolytic gasification district 5.Combustion zone 6 burn after the coking shape residue mechanical presses through going out slag pan 7, the block that is broken into below 100mm be expelled in the water sealed tank of furnace bottom, discharge through wet type slag-tapping system.

The hollow structure going out slag pan 7 is connected with air cooler by blower fan, on the one hand cools down the coking shape residue after burning, moreover it is possible to provide sufficient combustion-supporting oxygen to combustion zone 6.Air goes upward to pyrolytic gasification district 5 after combustion zone 6 consumes a large amount of oxygen, and defines the oxygen debt or anoxia condition that pyrolytic gasification reaction occurs.

The mixed flue gas that pyrolysis gasification furnace produces enters dual firing chamber by exhaust opening 3, through secondary wind oxygenating, fully burning, in-furnace temperature controls more than 850 DEG C, high-temperature flue gas after burning temperature after the energy is reclaimed in fire tube heat recovery steam generator heat absorption is down to 600 DEG C, combustion air is heated to about 200-300 DEG C by air cooler and is re-fed into vertical pyrolysis gasification furnace by a part, another part enters chilling tower water-spraying control to 200 DEG C, jet respectively activated carbon, sodium ascorbyl phosphate, activated carbon has bigger serface, the dioxin in flue gas and heavy metal can be adsorbed, and sodium ascorbyl phosphate and smoke contacts react, the oxysulfide in flue gas can be reduced, the stripping quantity of the pollutant such as hydrogen chloride, last flue gas enters sack cleaner, dust removal by filtration, air is entered after the most up to standard.

The technique that this utility model is used destroys clearance by fire>99%, dioxin concentration<0.1TEGng/Nm³。

Above-described embodiment of the present utility model; only clearly demonstrate the citing that this utility model is done; but being not limited to protection domain of the present utility model, the technical scheme of all equivalents falls within category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.

Claims

1. a vertical pyrolysis gasification furnace, including feed mechanism (10), tapping mechanism (9), it is characterized in that: on the inboard wall of furnace body of described vertical pyrolysis gasification furnace, be evenly arranged several mozzles avoiding pyrolysis gas Airflow obstruction (11), described mozzle (11) connects formation backflow with water leg (12), described vertical pyrolysis gasification furnace also includes sealing mechanism, working region and rabbling mechanism, described sealing mechanism includes the first hermatic door (1), second hermatic door (2), described the second hermatic door (2) is arranged on V-type prominence, body of heater upper end, described first hermatic door (1) can not be opened with the second hermatic door (2) simultaneously；Described working region includes dry section (4), pyrolytic gasification district (5), combustion zone (6), the body of heater of described dry section (4) upper end being provided with exhaust opening (3)；Described rabbling mechanism includes slag pan (7) and spice dish (14), described goes out slag pan (7) and spice dish (14) is arranged in same rotating shaft, be provided with in described rotating shaft communicate with the external world for hollow structure.

The vertical pyrolysis gasification furnace of one the most according to claim 1, it is characterised in that: described pyrolysis gasification furnace also includes combustion-supporting mechanism (13), and described combustion-supporting mechanism (13) is made up of oil tank, oil pump and burner.

The vertical pyrolysis gasification furnace of one the most according to claim 1, it is characterised in that: it is provided with the energization solenoid (15) of absorption magnetic metal material on described feed mechanism (10) four wall.

The vertical pyrolysis gasification furnace of one the most according to claim 1, it is characterised in that: being provided with double roller feeder between described second hermatic door (2) and dry section (4), the gap between two rollers can adjust.

The vertical pyrolysis gasification furnace of one the most according to claim 1, it is characterised in that: described pyrolytic gasification district (5) uses the inverted round table shape and structure that footpath mouth is tapered.

6. according to the vertical pyrolysis gasification furnace of the one according to any one of claim 1-5, it is characterised in that: the described slag pan (7) that goes out is arranged on bottom, combustion zone (6), and described spice dish (14) is arranged on middle part, pyrolytic gasification district (5).

7. according to the vertical pyrolysis gasification furnace of the one according to any one of claim 1-5, it is characterised in that: described go out slag pan (7) and spice dish (14) is all beveled structure, go out slag pan (7) and spice dish (14) upper surface is additionally provided with convex teeth portion.

8. according to the vertical pyrolysis gasification furnace of the one according to any one of claim 1-5, it is characterised in that: described the first hermatic door (1) and the second hermatic door (2) they are interlocks, and only when upper strata door is in the state of closedown, lower floor's door just could be opened.

The vertical pyrolysis gasification furnace of one the most according to claim 8, it is characterised in that: described the second hermatic door (2) uses smoke exhaust fire damper or butterfly valve structure to make, and the first hermatic door (1) is closed when producing electric signal, and the second hermatic door (2) is opened.