CN112254155A - Sludge gasification incinerator - Google Patents
Sludge gasification incinerator Download PDFInfo
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- CN112254155A CN112254155A CN202011221024.1A CN202011221024A CN112254155A CN 112254155 A CN112254155 A CN 112254155A CN 202011221024 A CN202011221024 A CN 202011221024A CN 112254155 A CN112254155 A CN 112254155A
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- sludge
- gasification
- secondary air
- incineration chamber
- air
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- 239000010802 sludge Substances 0.000 title claims abstract description 91
- 238000002309 gasification Methods 0.000 title claims abstract description 81
- 239000002918 waste heat Substances 0.000 claims abstract description 24
- 230000007704 transition Effects 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003546 flue gas Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 230000007480 spreading Effects 0.000 claims description 7
- 239000011819 refractory material Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 17
- 238000001035 drying Methods 0.000 abstract description 5
- 239000002956 ash Substances 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 239000000779 smoke Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005587 bubbling Effects 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a sludge gasification incinerator which comprises a gasification incineration chamber, a sludge feeding device, a separator and a waste heat utilization device. The flue gas outlet is arranged at the upper part of the gasification incineration chamber. The gasification incineration chamber comprises a divergent zone, a transition zone, a convergent zone and a top section zone. The middle part of the transition area is provided with a feed inlet which is connected with a sludge feeding device. Two feed inlets are arranged, the two feed inlets are symmetrically arranged on two sides of the transition area, and two sets of sludge feeding devices are arranged in one-to-one correspondence with the two feed inlets. When the gasification incinerator is used for gasification incineration of sludge with the water content of less than 70%, the sludge feeding device adopts a two-stage feeding device which is arranged in a stepped mode, the rear stage adopts a shaftless auger, and the outlet of the sludge feeding device is provided with a spray head. When the gasification incinerator is used for gasification incineration of sludge with the water content of more than or equal to 70%, the sludge gasification incinerator also comprises a hot air device, and high-temperature air is heated into ultrahigh-temperature air and serves as primary air. The invention can disperse and evenly feed the sludge and has the advantages of high sludge drying and gasification-combustion efficiency and the like.
Description
Technical Field
The invention relates to a sludge gasification incinerator, and belongs to the field of sludge gasification.
Background
Mud often influences its combustion stability in the incinerator of direct combustion because of its moisture content is higher, causes the unstable or local detonation scheduling problem of burning, and the moisture evaporation makes flue gas moisture content too high in the flue gas moreover, causes the corruption of pipeline and follow-up equipment easily. The gasification is carried out firstly and then the combustion is carried out, so that the moisture in the sludge is fully utilized as a gasifying agent to participate in the reaction under the condition of medium and low temperature, and the reaction stability is improved; and the gasification process has a homogenization effect on the sludge with complex components, so that the subsequent combustion process is more stable and sufficient.
Because the sludge has high moisture and low heat value, most of the existing sludge incinerators adopt bubbling fluidized bed incineration and circulating fluidized bed incineration, the bubbling bed incineration sludge has high requirements on moisture and heat value of the sludge entering the incinerator, and the conditions of high initial discharge, insufficient combustion and the like are easy to occur; the circulating bed incinerates sludge, except for higher requirements on moisture and heat value, the initial discharge is lower, the combustion is more sufficient, but the direct combustion temperature is higher, the combustion is unstable, the ash blockage or slag bonding is caused by the high temperature of the separator, the ash deposition and slag bonding at the tail part are serious, and the fly ash amount is large. The use of Turbulent Fluidized Bed (TFB) for its gasification combustion process clearly has advantages: firstly, the reaction temperature of the gasification section at the lower part of the hearth is low, sludge can be converted into hot coal gas, and the reaction is slow and stable; secondly, the secondary combustion is easy to reach higher temperature, and the slagging condition is not easy to occur in a combustion area due to low ash concentration; thirdly, the minimum operation speed of the gasification section is small enough, so that the amount of ash slag passing through a high-temperature area is greatly reduced, the ash flying amount is greatly reduced, and the ash flying treatment cost can be greatly reduced; fourthly, low-oxygen staged combustion is organized after gasification, so that the initial generation amount of NOx can be greatly reduced, and the initial investment and the operating cost of denitration are obviously reduced.
Disclosure of Invention
The invention aims to provide a sludge gasification incinerator, which is characterized in that on one hand, sludge is dispersed to form uniform bulk materials through a fed rotary material spreading structure, and on the other hand, the sludge drying, gasification and combustion rates are improved by adopting a variable-section turbulent gasification incineration chamber structure and adding high-temperature air.
The invention is realized by the following technical scheme:
a sludge gasification incinerator can be used for gasification incineration of sludge with the water content of more than or equal to 70 percent, and comprises a gasification incineration chamber, a sludge feeding device, a separator, a waste heat utilization device and a hot air device; the gasification incineration chamber is sequentially connected with the separator and the waste heat utilization device; the gasification incineration chamber sequentially comprises a gradually expanding area, a transition area, a gradually reducing area, a top equal cross section area and the like from bottom to top, a smoke outlet is formed in the upper portion of the gasification incineration chamber, and the smoke outlet is formed in one side of the upper portion of the top equal cross section area; the transition zone is provided with a feed inlet connected with the sludge feeding device, the sludge feeding device is a pump type conveying device, the pump type conveying device comprises a sludge pump and a feeder connected with the sludge pump, the feeder comprises a barrel fixedly arranged at the feed inlet and a rotating shaft arranged at the center of the barrel along the axial direction, one end of the rotating shaft is provided with an umbrella-shaped structure capable of rotating along with the rotating shaft, the outlet of the barrel is provided with a spray head along the circumference, and the spray head is fixedly arranged and used for spraying compressed air or steam as a material spreading medium; the bottom of the gasification incineration chamber is provided with a primary air chamber for spraying primary air, and the primary air is ultrahigh-temperature air which is subjected to heat exchange and temperature rise sequentially through the waste heat utilization device and the hot air device; the upper part of the gradually-expanding area is provided with a plurality of lower secondary air ports, the bottom and the top of the gradually-expanding area are respectively provided with a plurality of middle secondary air ports and upper secondary air ports, secondary air is sprayed in through the lower secondary air ports, the middle secondary air ports and the upper secondary air ports respectively to form lower, middle and upper tertiary secondary air rotational flows respectively, the rotational directions of the middle secondary air rotational flow and the upper and lower secondary air rotational flows are opposite, and the secondary air is high-temperature air after being subjected to heat exchange and temperature rise through the waste heat utilization device.
The other technical scheme is as follows:
a sludge gasification incinerator can be used for gasification incineration of sludge with the water content of less than 70 percent, and comprises a gasification incineration chamber, a sludge feeding device, a separator and a waste heat utilization device; the gasification incineration chamber is sequentially connected with the separator and the waste heat utilization device; the gasification incineration chamber sequentially comprises a gradually expanding area, a transition area, a gradually reducing area, a top equal cross section area and the like from bottom to top, a smoke outlet is formed in the upper portion of the gasification incineration chamber, and the smoke outlet is formed in one side of the upper portion of the top equal cross section area; the transition area is provided with a feed inlet connected with the sludge feeding device, the sludge feeding device adopts two stages of feeding devices which are arranged in a step manner, the rear stage of the sludge feeding device adopts a shaftless auger, the outlet of the shaftless auger is positioned in the feed inlet, and the outlet of the shaftless auger is provided with a fixed or rotary spray head for spraying compressed air or steam as a material spreading medium; and a plurality of adjustable arc guide vanes are arranged on the inner wall surface of the fixed or rotary spray head along the circumference; a primary air chamber is arranged at the bottom of the gasification incineration chamber and used for spraying primary air, and the primary air is high-temperature air heated through heat exchange of the waste heat utilization device; the upper part of the gradually-expanding area is provided with a plurality of lower secondary air ports, the bottom and the top of the gradually-expanding area are respectively provided with a plurality of middle secondary air ports and upper secondary air ports, secondary air is sprayed in through the lower secondary air ports, the middle secondary air ports and the upper secondary air ports respectively to form lower, middle and upper tertiary secondary air rotational flows respectively, the rotational directions of the middle secondary air rotational flow and the upper and lower secondary air rotational flows are opposite, and the secondary air is high-temperature air after being subjected to heat exchange and temperature rise through the waste heat utilization device.
In the technical scheme, two feed inlets are arranged and are symmetrically arranged on two sides of the transition area; and the sludge feeding devices are arranged in two sets corresponding to the feeding holes one by one.
In the above technical solution, the transition region is set to be of a uniform cross section.
In the technical scheme, the inner wall surface of the gasification incineration chamber is coated with a refractory material.
In the technical scheme, the ultrahigh temperature air is about 800 ℃, and the high temperature air is about 400 ℃.
The invention has the following advantages and beneficial effects:
1) wet sludge: the middle part feeds materials and uniformly sprinkles the sludge into the furnace, so that the sludge is dried and starts to be gasified and combusted when reaching the lower part of the gasification incineration chamber, the gasification and combustion efficiency is high, and auxiliary fuel can be saved.
2) Drying sludge: the fuel can be burnt by self without drying until the water content is less than 50 percent; the feeding material is in powder shape and is shaken to be sprinkled, the middle part absorbs heat, and combustion is not needed.
Drawings
FIG. 1 is a schematic view of a sludge gasification incinerator according to the present invention.
FIG. 2 is a schematic view of a sludge feeding apparatus according to one embodiment of the present invention.
FIG. 3 is a schematic view of a sludge feeding apparatus according to another embodiment of the present invention: (a) a front view; (b) scraper blade setting schematic diagram.
In the figure: 1-a gasification incineration chamber; 2-a feed inlet; 3-a separator; 4-a waste heat utilization device; 5-a primary air chamber; 6-a sludge feeding device; 601-a feed channel; 602-a rotation axis; 603-a spray head; 604-shaftless auger; 605-guide vanes; 7-lower secondary air port; 8-middle secondary air port; 9-installing a secondary air port; 10-slag discharge pipe.
Detailed Description
The following describes the embodiments and operation of the present invention with reference to the accompanying drawings.
The terms of orientation such as up, down, left, right, front, and rear in the present specification are established based on the positional relationship shown in the drawings. The corresponding positional relationship may also vary depending on the drawings, and therefore, should not be construed as limiting the scope of protection.
As shown in figure 1, the sludge gasification incinerator comprises a gasification incineration chamber 1, a sludge feeding device 6, a separator 3 and a waste heat utilization device 4. The gasification incineration chamber 1 is connected with the separator 3 and the waste heat utilization device 4 in sequence.
The gasification incineration chamber 1 is sequentially provided with a gradually expanding area, a transition area, a gradually reducing area, a top and other cross-sectional areas from bottom to top. Typically, the transition zone is disposed with a constant cross-section, in which case the top of the diverging zone and the bottom of the converging zone are disposed with a constant cross-section. The upper part of the gasification incineration chamber 1 is provided with a smoke outlet which is arranged at one side of the upper part of the top equal section area. The flue gas outlet is connected with the inlet of the separator 3 through a horizontal flue.
The middle part of the transition area is provided with a feed inlet 2 connected with a sludge feeding device 6. Generally speaking, two feeding ports 2 are arranged, and the two feeding ports are symmetrically arranged on two sides of the transition area, and two sets of sludge feeding devices 6 are arranged in one-to-one correspondence with the two feeding ports 2.
The bottom of the gasification incineration chamber 1 is provided with a primary air chamber 5 for spraying primary air. The top of the primary air chamber 5 is provided with an air distribution plate and an air cap, and the lowest point of the air distribution plate is provided with a slag discharge port which is connected with a slag discharge pipe 10. The upper part of the gradually expanding area is provided with a plurality of lower secondary air ports 7, the bottom and the top of the gradually expanding area are respectively provided with a plurality of middle secondary air ports 8 and upper secondary air ports 9, so that secondary air is respectively sprayed in through the lower secondary air ports, the middle secondary air ports and the upper secondary air ports to respectively form lower, middle and upper tertiary secondary air rotational flows, and the rotational direction of the middle secondary air rotational flow is opposite to that of the upper and lower secondary air rotational flows.
The inner wall surface of the gasification incineration chamber 1 is coated with refractory materials. In general, the inner wall surfaces of the divergent zone, the transition zone and the convergent zone are all coated with refractory material, while the inner wall surfaces of the top equal-section zone at least below the middle part are also coated with refractory material.
When the gasification incineration device is used for gasification incineration of sludge with the water content of less than 70%, the sludge feeding device 6 adopts a two-stage feeding device which is arranged in a step manner, the former stage adopts a scraper blade or auger conveying device, and the latter stage adopts a shaftless auger 604. The outlet of the shaftless packing auger 604 is positioned in the feed inlet 2. The outlet of the shaftless auger 604 is provided with a spray head 603 for spraying compressed air or steam as a seeding medium. A plurality of adjustable arc guide vanes 605 are circumferentially arranged on the inner wall surface of the nozzle. The spray head 603 is arranged at the outlet of the shaftless auger in a sleeve type. At this time, the primary air and the secondary air are high-temperature air of about 400 ℃ after heat exchange and temperature rise through the waste heat utilization device 4. The spray head comprises a fixed spray head or a rotary spray head. The fixed spray head completes the rotary spraying of the medium through guide vane diversion, and the adjustability of the seeding medium is realized through the adjustability of the guide vane. The rotary sprayer is a sleeve type disc with the sprayer arranged integrally rotates, and the rotary sprayer can adjust the rotating speed of the disc by matching with guide vanes according to the properties of sludge water content, viscosity and the like under the action of the guide vanes, so that the optimal spreading effect is achieved. The dried sludge with the water content of less than 70 percent is conveyed by a two-stage feeding device and reaches the outlet of the shaftless auger 604, the dried sludge is easily crushed by the guide vanes, sludge powder is formed under the spreading action of compressed air or steam sprayed from the spray head and is uniformly spread, and the heat absorption, drying and gasification are started in the middle of the gasification incineration chamber 1. The secondary air rotational flow with different rotational directions enables a turbulent flow state to be formed in the gasification incineration chamber, so that the powdery sludge is gasified as completely as possible. Gasified gas and a small amount of pulverized sludge combustible particles are combusted under the action of secondary air entering in a stepped mode in the ascending process.
When the waste heat utilization device is used for gasifying and incinerating the sludge with the water content of more than or equal to 70 percent, the sludge gasifying and incinerating furnace also comprises a hot air device, and the hot air device is used for further heating the high-temperature air with the temperature of about 400 ℃ after the heat exchange and the temperature rise of the waste heat utilization device 4 to the ultrahigh-temperature air with the temperature of about 800 ℃ and taking the ultrahigh-temperature air as primary air to pass through a primary air chamber 5 of the sludge gasifying and. Simultaneously, sludge feed arrangement 6 chooses for use pump formula conveyor, and pump formula conveyor includes sludge pump and the feeder that links to each other with sludge pump. As shown in fig. 2, the feeder includes a cylinder 601 fixedly disposed at the feed port 2 and a rotating shaft 602 disposed at the center of the cylinder 601 and axially disposed, one end of the rotating shaft 602 is provided with an umbrella structure capable of rotating along with the rotating shaft, and the end of the umbrella structure extends out of the outlet of the cylinder 601 to form a gap with the cylinder 601, so that the umbrella structure performs a cutting and scattering effect on sludge during the rotation of the rotating shaft. Furthermore, a nozzle 603 is fixedly arranged along the circumference at the outlet of the cylinder 601 and used for spraying compressed air or steam as a seeding medium, and the nozzle is fixedly arranged and matched with the rotary umbrella-shaped structure, so that sludge is changed into uniform bulk materials to enter the gasification incineration chamber for gasification. The sludge bulk material is gradually dried in the falling process, gasification is started when the sludge bulk material reaches the lower part of the gasification incineration chamber 1, and gasification gas generated by sludge gasification is gradually combusted under the high temperature of secondary air.
The hot air device is provided with a combustion-supporting device, utilizes natural gas or light oil for supporting combustion, and continuously heats the high-temperature air with the temperature of about 400 ℃ from the waste heat utilization device 4 to about 800 ℃.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A sludge gasification incinerator can be used for gasification incineration of sludge with the water content of more than or equal to 70 percent, and is characterized by comprising a gasification incineration chamber (1), a sludge feeding device (6), a separator (3), a waste heat utilization device (4) and a hot air device; the gasification incineration chamber (1) is sequentially connected with the separator (3) and the waste heat utilization device (4); the gasification incineration chamber (1) is sequentially provided with a gradually expanding area, a transition area, a gradually reducing area, a top equal cross section area and the like from bottom to top, the upper part of the gasification incineration chamber (1) is provided with a flue gas outlet, and the flue gas outlet is arranged on one side of the upper part of the top equal cross section area; the transition zone is provided with a feed inlet (2) connected with the sludge feeding device (6), the sludge feeding device (6) is a pump type conveying device, the pump type conveying device comprises a sludge pump and a feeder connected with the sludge pump, the feeder comprises a cylinder (601) fixedly arranged at the feed inlet (2) and a rotating shaft (602) arranged at the center of the cylinder (601) along the axial direction, one end of the rotating shaft (602) is provided with an umbrella-shaped structure capable of rotating along with the rotating shaft, and an outlet of the cylinder (601) is provided with a spray head (603) along the circumference for spraying compressed air or steam as a material spreading medium; a primary air chamber (5) is arranged at the bottom of the gasification incineration chamber (1) and is used for spraying primary air, and the primary air is ultrahigh-temperature air which is subjected to heat exchange and temperature rise sequentially through the waste heat utilization device (4) and the hot air device; the upper part of the gradually-expanding area is provided with a plurality of lower secondary air ports (7), the bottom and the top of the gradually-expanding area are respectively provided with a plurality of middle secondary air ports (8) and upper secondary air ports (9), secondary air is respectively sprayed in through the lower secondary air ports, the middle secondary air ports and the upper secondary air ports to respectively form lower, middle and upper tertiary secondary air rotational flows, the rotational directions of the middle secondary air rotational flow and the upper and lower secondary air rotational flows are opposite, and the secondary air is high-temperature air subjected to heat exchange and temperature rise through the waste heat utilization device (4).
2. The sludge gasification incinerator according to claim 1, wherein two feed inlets (2) are provided, and the two feed inlets are symmetrically provided on both sides of the transition zone; the sludge feeding devices (6) are arranged in two sets corresponding to the feeding holes (2) one by one.
3. The sludge gasification incinerator according to claim 1 or 2, wherein the transition zone is provided with a uniform cross section.
4. The sludge gasification incinerator according to claim 1, wherein: the inner wall surface of the gasification incineration chamber (1) is laid with refractory materials.
5. A sludge gasification incinerator can be used for gasification incineration of sludge with the water content of less than 70 percent, and is characterized by comprising a gasification incineration chamber (1), a sludge feeding device (6), a separator (3) and a waste heat utilization device (4); the gasification incineration chamber (1) is sequentially connected with the separator (3) and the waste heat utilization device (4); the gasification incineration chamber (1) is sequentially provided with a gradually expanding area, a transition area, a gradually reducing area, a top equal cross section area and the like from bottom to top, the upper part of the gasification incineration chamber (1) is provided with a flue gas outlet, and the flue gas outlet is arranged on one side of the upper part of the top equal cross section area; the transition area is provided with a feed inlet (2) connected with the sludge feeding device (6), the sludge feeding device (6) adopts two stages of feeding devices which are arranged in a step manner, the rear stage adopts a shaftless packing auger (604), the outlet of the shaftless packing auger (604) is positioned in the feed inlet (2), and the outlet of the shaftless packing auger (604) is provided with a spray head (603) for spraying compressed air or steam as a material spreading medium; a plurality of adjustable arc guide vanes (605) are arranged on the inner wall surface of the spray head along the circumference; a primary air chamber (5) is arranged at the bottom of the gasification incineration chamber (1) and is used for spraying primary air, and the primary air is high-temperature air heated through heat exchange of the waste heat utilization device (4); the upper part of the gradually-expanding area is provided with a plurality of lower secondary air ports (7), the bottom and the top of the gradually-expanding area are respectively provided with a plurality of middle secondary air ports (8) and upper secondary air ports (9), secondary air is respectively sprayed in through the lower secondary air ports, the middle secondary air ports and the upper secondary air ports to respectively form lower, middle and upper tertiary secondary air rotational flows, the rotational directions of the middle secondary air rotational flow and the upper and lower secondary air rotational flows are opposite, and the secondary air is high-temperature air subjected to heat exchange and temperature rise through the waste heat utilization device (4).
6. The sludge gasification incinerator according to claim 5, wherein two feed inlets (2) are provided, and the two feed inlets are symmetrically provided on both sides of the transition zone; the sludge feeding devices (6) are arranged in two sets corresponding to the feeding holes (2) one by one.
7. The sludge gasification incinerator according to claim 5 or 6, wherein the transition zone is provided with a uniform cross section.
8. The sludge gasification incinerator according to claim 5, wherein: the inner wall surface of the gasification incineration chamber (1) is laid with refractory materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011221024.1A CN112254155A (en) | 2020-11-05 | 2020-11-05 | Sludge gasification incinerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011221024.1A CN112254155A (en) | 2020-11-05 | 2020-11-05 | Sludge gasification incinerator |
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| CN112254155A true CN112254155A (en) | 2021-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251426A (en) * | 2021-06-10 | 2021-08-13 | 清华大学 | Flexible feeding device and fluidized bed incinerator applying same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251426A (en) * | 2021-06-10 | 2021-08-13 | 清华大学 | Flexible feeding device and fluidized bed incinerator applying same |
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