CN110848705A - Domestic waste limit for oxygen formula pyrolysis oven - Google Patents
Domestic waste limit for oxygen formula pyrolysis oven Download PDFInfo
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- CN110848705A CN110848705A CN201911334650.9A CN201911334650A CN110848705A CN 110848705 A CN110848705 A CN 110848705A CN 201911334650 A CN201911334650 A CN 201911334650A CN 110848705 A CN110848705 A CN 110848705A
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- furnace body
- layer
- combustion chamber
- slag discharging
- pyrolysis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
Abstract
The invention provides an oxygen-limited type household garbage pyrolysis furnace, which comprises a forehead furnace body, wherein the inner layer of the forehead furnace body is a heat-insulating layer, a cone top cover is arranged at the top of the forehead furnace body, a central smoke outlet and a feed inlet are formed in the cone top cover, and an oil-smoke separation device is connected to the central smoke outlet; the furnace body is internally provided with a conical distributor, a material guide sliding plate and an annular spray water pipe, the bottom of the furnace body is provided with an inverted conical combustion chamber, and the bottom of the combustion chamber is provided with a slag outlet; an annular air inlet pipe with a control valve is arranged on the outer wall of the furnace body and is communicated with the inside of the inverted cone combustion chamber, and a slag discharging channel and a standby slag discharging channel are respectively arranged at the bottom of the furnace body in the directions which are mutually vertical in the radial direction of the circumference; a slag discharging machine is arranged below the slag discharging channel of the furnace body, and two ends of the standby slag discharging channel are provided with sealing doors; the fire supply port of the diesel oil fire supply system extends into the inverted cone combustion chamber. The invention greatly reduces the operation cost of garbage treatment, effectively reduces the generation of dioxin, and avoids the generation of fly ash and the treatment of percolate.
Description
Technical Field
The invention belongs to the technical field related to pollutant control in household garbage treatment, and relates to an oxygen-limited type household garbage pyrolysis furnace,
and (3) treating the domestic garbage by adopting a domestic garbage pyrolysis process under the condition of limiting oxygen.
Background
The existing household garbage treatment technology generally adopts household garbage incineration power generation, the technology carries out incineration treatment on the garbage in a mode of adding a combustion improver, and then the power generation is carried out by using the residual heat after the garbage is treated. The technology needs to establish a huge collection system, a large amount of combustion improver is needed for waste incineration power generation, the operation cost is high, secondary pollution can be caused in the incineration process of the waste, and dioxin substances, sulfides, nitrogen oxides, chlorides, fly ash and the like which influence the environment are generated. These pollutants can cause harm to the environment and human body, and seriously affect the health of human beings. Therefore, the key of the domestic garbage disposal is to solve the problems of operation cost and secondary pollution in the garbage incineration process.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the domestic garbage oxygen-limiting type pyrolysis furnace which is suitable for pyrolyzing the domestic garbage, the domestic garbage is timely treated on site by adopting a small-scale dispersed treatment mode, the long-distance transfer link of the garbage is saved, a combustion improver is not required to be added in the garbage treatment process, the operation cost of garbage treatment is greatly reduced, the generation of dioxin can be effectively reduced due to the limitation of oxygen supply in the pyrolysis process, meanwhile, the combustion layer of the furnace body is arranged at the lowest part of the furnace body, and the generation amount of particles in the garbage treatment process is less, so that the generation of fly ash is avoided.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a domestic waste limit for oxygen formula pyrolysis oven, includes the furnace body, and the furnace body comprises the heat preservation of outer steel shell, inlayer, its characterized in that as follows:
the inner cavity of the furnace body is divided into a combustion layer, a pyrolysis layer and a drying layer from bottom to top, a cone top cover is arranged at the top of the furnace body, a central flue gas outlet and a feed inlet are formed in the cone top cover, and an oil smoke separation device is connected to the central flue gas outlet; a conical distributor is arranged in the inner cavity of the furnace body below the feed inlet and is connected with the furnace body through a bridge; a material guide sliding plate is arranged at the lower part of the feed inlet;
the inner cavity of the furnace body is provided with an annular spray header for uniformly spraying water in the cavity;
the bottom of the furnace body is provided with an inverted cone combustion chamber, the bottom of the combustion chamber is provided with a slag hole, the top of the slag hole is provided with a fire grate, and the cone angle of the inverted cone is 30-50 degrees; the outer wall of the furnace body is provided with an annular air inlet pipe, the annular air inlet pipe is respectively provided with air inlet pipe branch pipes in four directions on the circumference and communicated with the inside of the inverted cone combustion chamber, and the air inlet branch pipes are provided with control valves; the bottom of the furnace body is respectively provided with a slag discharging channel and a standby slag discharging channel in the circumferential radial direction and the mutually vertical direction; a slag discharging machine is arranged below the slag discharging channel of the furnace body, and two ends of the standby slag discharging channel are provided with sealing doors;
the diesel oil fire supply system is arranged on the outer side of the inverted cone combustion chamber, and a fire supply port of the diesel oil fire supply system extends into the inverted cone combustion chamber.
Furthermore, the furnace body top is equipped with the rail guard, the furnace body middle section position is equipped with overhauls the platform, and the side of furnace body is equipped with the cat ladder and is connected with maintenance platform, furnace body top, is convenient for install and maintain.
Furthermore, a combustion layer temperature sensor, a pyrolysis layer temperature sensor and a drying layer temperature sensor are respectively arranged on the side wall of the furnace body corresponding to the combustion layer, the pyrolysis layer and the drying layer, and the temperatures of the pyrolysis layer, the combustion layer and the drying layer are monitored; the central smoke outlet is provided with a temperature sensor for detecting the temperature of smoke.
Furthermore, the side of the furnace body is provided with an access door for observing the inside of the furnace body and maintaining.
Furthermore, the slag extractor and the horizontal plane form an angle of 45 degrees, and the slag extractor can be directly arranged on the slag transfer trolley.
Further, the fire supply system comprises a fire supply port, a diesel oil burner and a blower, wherein the fire supply port is connected with the diesel oil burner.
The invention has the beneficial effects that: compared with the prior art, the operation cost for treating the garbage is greatly reduced without adding a combustion improver in the garbage treatment process, the generation of dioxin is effectively reduced because the oxygen supply is limited by the air inlet branch pipe in the pyrolysis process, and meanwhile, the combustion layer of the furnace body is arranged at the lowest part of the furnace body, so that the generation amount of particles in the garbage treatment process is very small, the generation of fly ash is avoided, the household garbage is treated in situ and in real time, and the secondary pollution formed in the garbage secondary transfer and transfer processes is avoided; the device can treat the percolate, does not need to be additionally provided with a percolate treatment device, and is flexibly suitable for villages, towns, counties and remote areas.
Drawings
FIG. 1 is a front view of an oxygen-limited pyrolysis furnace for domestic garbage according to the present invention.
FIG. 2 is a top view of the oxygen-limited pyrolysis furnace for domestic garbage.
FIG. 3 is a sectional view showing the structure of the furnace body of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to the attached drawings 1-3, the domestic garbage oxygen-limiting type pyrolysis furnace comprises a furnace body 3, wherein the furnace body is composed of an outer steel shell 20 and an inner heat-insulating layer (a heat-insulating material layer 21 and a refractory brick layer 22), an inner cavity of the furnace body is divided into a combustion layer, a pyrolysis layer and a drying layer from bottom to top, a cone top cover 11 is arranged at the top of the furnace body, a central flue gas outlet 9 and a feed inlet 17 are formed in the cone top cover, and a lampblack separation device 1 is connected to the central flue gas outlet; a conical distributor 19 is arranged in the inner cavity of the furnace body below the feed inlet and is connected with the furnace body through a bridge; a material guide sliding plate 18 is arranged at the lower part of the feed inlet 17;
an annular spray header 12 is arranged in the inner cavity of the furnace body and is used for uniformly spraying water in the cavity;
the bottom of the furnace body is provided with an inverted cone combustion chamber 24, the bottom of the combustion chamber is provided with a slag hole, the top of the slag hole is provided with a fire grate, and the cone angle of the inverted cone is 30-50 degrees; an annular air inlet pipe 5 is arranged on the outer wall of the furnace body, air inlet pipe branch pipes are respectively arranged on the annular air inlet pipe in four directions on the circumference and communicated with the inside of the inverted cone combustion chamber 24, and a control valve is arranged on each air inlet branch pipe; the bottom of the furnace body is respectively provided with a slag discharging channel and a standby slag discharging channel in the circumferential radial direction and the mutually vertical direction; a slag discharging machine 8 is arranged below the furnace body slag discharging channel; two ends of the standby slag discharging channel are provided with sealing doors 6;
the diesel oil fire supply system 23 is arranged on the outer side of the inverted cone combustion chamber, and a fire supply port of the diesel oil fire supply system extends into the inverted cone combustion chamber; the diesel oil fire supply system is in the prior art and comprises a fire supply port, a diesel oil burner and a blower, wherein the fire supply port is connected with the diesel oil burner.
As shown in figure 1, the top of the furnace body is provided with a protective guard 2, the middle section of the furnace body is provided with an overhaul platform 4, and the side edge of the furnace body is provided with a ladder stand 7 which is connected with the overhaul platform and the top of the furnace body, so that the furnace body is convenient to install and maintain.
As shown in fig. 3, the side wall of the furnace body is respectively provided with a combustion layer temperature sensor 16, a pyrolysis layer temperature sensor 15 and a drying layer temperature sensor 14 corresponding to the combustion layer, the pyrolysis layer and the drying layer, and the temperatures of the pyrolysis layer, the combustion layer and the drying layer are monitored; the central flue gas outlet 9 is provided with a temperature sensor 10 for detecting the temperature of the flue gas.
As shown in fig. 1 and 3, an access door 13 is arranged on the side surface of the furnace body for observing the inside of the furnace body and maintaining.
As shown in figure 1, the slag extractor is arranged at an angle of 45 degrees with the horizontal plane and can be directly arranged on a slag transfer trolley through the slag extractor.
In the invention, the purpose of limiting oxygen supply is achieved by controlling the opening number of the branch pipes of the air inlet pipe of the valve
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a domestic waste limit for oxygen formula pyrolysis oven, includes the furnace body, and the furnace body comprises the heat preservation of outer steel shell, inlayer, its characterized in that:
the inner cavity of the furnace body is divided into a combustion layer, a pyrolysis layer and a drying layer from bottom to top, a cone top cover is arranged at the top of the furnace body, a central flue gas outlet and a feed inlet are formed in the cone top cover, and an oil smoke separation device is connected to the central flue gas outlet; a conical distributor is arranged in the inner cavity of the furnace body below the feed inlet and is connected with the furnace body through a bridge; a material guide sliding plate is arranged at the lower part of the feed inlet;
the inner cavity of the furnace body is provided with an annular spray header for uniformly spraying water in the cavity;
the bottom of the furnace body is provided with an inverted cone combustion chamber, the bottom of the combustion chamber is provided with a slag hole, the top of the slag hole is provided with a fire grate, and the cone angle of the inverted cone is 30-50 degrees; the outer wall of the furnace body is provided with an annular air inlet pipe, the annular air inlet pipe is respectively provided with air inlet pipe branch pipes in four directions on the circumference and communicated with the inside of the inverted cone combustion chamber, and the air inlet branch pipes are provided with control valves; the bottom of the furnace body is respectively provided with a slag discharging channel and a standby slag discharging channel in the circumferential radial direction and the mutually vertical direction; a slag discharging machine is arranged below the slag discharging channel of the furnace body, and two ends of the standby slag discharging channel are provided with sealing doors;
the diesel oil fire supply system is arranged on the outer side of the inverted cone combustion chamber, and a fire supply port of the diesel oil fire supply system extends into the inverted cone combustion chamber.
2. The domestic garbage oxygen-limiting type pyrolysis furnace according to claim 1, characterized in that: the furnace body top is equipped with the rail guard, the furnace body middle section position is equipped with overhauls the platform, and the side of furnace body is equipped with the cat ladder and overhauls platform, furnace body top and is connected, is convenient for install and maintain.
3. The domestic garbage oxygen-limiting type pyrolysis furnace according to claim 1 or 2, characterized in that: the side wall of the furnace body is respectively provided with a combustion layer temperature sensor, a pyrolysis layer temperature sensor and a drying layer temperature sensor corresponding to the combustion layer, the pyrolysis layer and the drying layer, and the temperatures of the pyrolysis layer, the combustion layer and the drying layer are monitored; and a central smoke outlet is provided with a temperature sensor for detecting the smoke temperature.
4. The domestic garbage oxygen-limiting type pyrolysis furnace according to claim 1 or 2, characterized in that: and an access door is arranged on the side surface of the furnace body.
5. The domestic garbage oxygen-limiting type pyrolysis furnace according to claim 3, characterized in that: and an access door is arranged on the side surface of the furnace body.
6. The domestic garbage oxygen-limiting type pyrolysis furnace according to claim 1 or 2, characterized in that: the slag extractor and the horizontal plane are arranged at an angle of 45 degrees.
7. The domestic garbage oxygen-limiting type pyrolysis furnace of claim 5, wherein: the slag extractor and the horizontal plane are arranged at an angle of 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334650.9A CN110848705A (en) | 2019-12-23 | 2019-12-23 | Domestic waste limit for oxygen formula pyrolysis oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334650.9A CN110848705A (en) | 2019-12-23 | 2019-12-23 | Domestic waste limit for oxygen formula pyrolysis oven |
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| CN110848705A true CN110848705A (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911334650.9A Pending CN110848705A (en) | 2019-12-23 | 2019-12-23 | Domestic waste limit for oxygen formula pyrolysis oven |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610956A (en) * | 2020-12-22 | 2021-04-06 | 武汉可立尔环保科技有限公司 | Gradient temperature-changing garbage pyrolysis method |
| CN112628745A (en) * | 2020-12-22 | 2021-04-09 | 深圳市深港产学研环保工程技术股份有限公司 | Gradient temperature-changing pyrolysis system for treating household garbage |
| CN112664940A (en) * | 2020-12-22 | 2021-04-16 | 华中科技大学 | Gradient temperature-changing type garbage treatment method based on gas-temperature-heat linkage control |
| CN113512439A (en) * | 2021-08-18 | 2021-10-19 | 上海固类特环境科技有限公司 | Low-temperature pyrolysis method and system |
-
2019
- 2019-12-23 CN CN201911334650.9A patent/CN110848705A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610956A (en) * | 2020-12-22 | 2021-04-06 | 武汉可立尔环保科技有限公司 | Gradient temperature-changing garbage pyrolysis method |
| CN112628745A (en) * | 2020-12-22 | 2021-04-09 | 深圳市深港产学研环保工程技术股份有限公司 | Gradient temperature-changing pyrolysis system for treating household garbage |
| CN112664940A (en) * | 2020-12-22 | 2021-04-16 | 华中科技大学 | Gradient temperature-changing type garbage treatment method based on gas-temperature-heat linkage control |
| CN112610956B (en) * | 2020-12-22 | 2023-03-28 | 武汉可立尔环保科技有限公司 | Gradient temperature-changing garbage pyrolysis method |
| CN112664940B (en) * | 2020-12-22 | 2024-03-01 | 华中科技大学 | Gradient temperature-changing type garbage treatment method based on gas-temperature-heat linkage control |
| CN113512439A (en) * | 2021-08-18 | 2021-10-19 | 上海固类特环境科技有限公司 | Low-temperature pyrolysis method and system |
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