CN212108418U - Garbage pyrolysis gasification system - Google Patents

Abstract

The utility model discloses a rubbish pyrolysis gasification system, including the storehouse body, direction diverging device, combustible gas return line, burner and dross removal mechanism, the top of the storehouse body is equipped with the feed inlet, and the lower extreme of the storehouse body is equipped with the slag notch, and direction diverging device installs in the below of feed inlet, and storehouse internal top-down is equipped with rubbish feeding zone, rubbish drying zone, pyrolysis gasification district and slagging-off sediment district, and combustible gas return line installs in rubbish drying zone, and burner installs in pyrolysis gasification district, and dross removal mechanism installs in slagging-off sediment district. Through carrying out the burning pyrolysis to rubbish in integrative pyrolysis storehouse, through reasonable structural design, make rubbish carry out the pyrolysis at anaerobic or low oxygen condition, the gas that the pyrolysis produced is neutral, can stop the production of dioxin class material. Combustible gas generated by pyrolysis is used as fuel to return to the bin body for combustion. The garbage is not required to be sorted and classified in any mode; auxiliary fuel is not required to be added, a large amount of energy is saved, and the operation cost is extremely low.

Description

Garbage pyrolysis gasification system

Technical Field

The utility model relates to a refuse treatment technical field, in particular to rubbish pyrolysis gasification system.

Background

Human daily life and production generate a large amount of solid garbage every day, and due to large discharge amount, complex and various components, pollution, resource and social properties, the human daily life and production need harmless, resource, reduction and social treatment, and if the human daily life and production cannot be properly treated, the human daily life and production generate environment pollution, resources are wasted, production and life safety is damaged, and social harmony is damaged. The widely used methods of waste disposal are sanitary landfills, high temperature composting and incineration. The garbage is treated in a garbage landfill mode, so that the garbage erodes a large amount of land. The high-temperature composting occupies a large area and has low treatment efficiency. The incineration method can realize effective treatment of the household garbage to the maximum extent, occupies minimum land resources, and can seriously pollute air if the incineration tail gas is directly discharged without being treated.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a handle high efficiency, operation cost is low, energy saving and pollute little rubbish pyrolysis gasification system.

According to the utility model discloses an aspect provides rubbish pyrolysis gasification system, including the storehouse body, direction diverging device, combustible gas return line, burner and dross removal mechanism, the top of the storehouse body is equipped with the feed inlet, the lower extreme of the storehouse body is equipped with the slag notch, direction diverging device installs in the below of feed inlet, storehouse internal top-down is equipped with rubbish feeding zone, rubbish drying zone, pyrolysis gasification district and slagging-off sediment district, combustible gas return line installs in rubbish drying zone, burner installs in pyrolysis gasification district, dross removal mechanism installs in slagging-off sediment district.

In some embodiments, the combustion device comprises an air guide main pipe, an air guide branch pipe and a combustion cover, wherein one end of the air guide main pipe penetrates through the side wall of the bin body, the other end of the air guide main pipe is connected with one end of the air guide branch pipe, the combustion cover covers the air guide branch pipe, a plurality of air outlet holes are formed in the air guide branch pipe, and a plurality of air passing holes which are uniformly distributed are formed in the combustion cover.

In some embodiments, the combustion hoods are in a trapezoid shape with a small upper part and a large lower part, the air guide branch pipes are arranged in parallel in the horizontal direction, and the combustion hoods are arranged in one-to-one correspondence with the air guide branch pipes.

In some embodiments, the deslagging device comprises a first spiral deslagging device and a second spiral deslagging device, wherein the first spiral deslagging device and the second spiral deslagging device are both horizontally arranged, the second spiral deslagging device is positioned at the bottom of the bin body, and the first spiral deslagging device is positioned above the second spiral deslagging device and is vertically arranged with the second spiral deslagging device.

In some embodiments, the first spiral deslagging devices are arranged in two, the output ends of the two first spiral deslagging devices are opposite and correspond to the slag outlet, and the second spiral deslagging devices are arranged in parallel in a plurality.

In some embodiments, the combustible gas return pipeline comprises an air inlet pipe and an air distribution pipe, one end of the air inlet pipe penetrates through the side wall of the bin body, the other end of the air inlet pipe is connected with the air distribution pipe, the air distribution pipe is provided with a plurality of air outlets which are uniformly distributed.

The utility model has the advantages that: through carrying out the burning pyrolysis to rubbish in integrative pyrolysis storehouse, through reasonable structural design, make rubbish carry out the pyrolysis at anaerobic or low oxygen condition, the gas that the pyrolysis produced is neutral, can stop the production of dioxin class material. Combustible gas generated by pyrolysis is used as fuel to return to the bin body for combustion. The garbage is not required to be sorted and classified in any mode; auxiliary fuel is not required to be added, a large amount of energy is saved, and the operation cost is extremely low.

Drawings

Fig. 1 is a schematic structural diagram of a waste pyrolysis gasification system according to an embodiment of the present invention;

fig. 2 is a left side view schematic diagram of the waste pyrolysis gasification system shown in fig. 1.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

Fig. 1 and 2 schematically show a pyrolysis and gasification system for waste according to an embodiment of the present invention.

Referring to fig. 1 and 2, the garbage pyrolysis gasification system comprises a bin body 1, a guiding and shunting device 2, a combustible gas backflow pipeline 3, a combustion device 4 and a deslagging device 5. The top end of the bin body 1 is provided with a feed inlet 11, and the lower end of the bin body 1 is provided with a slag outlet 12. The guiding and flow-dividing device 2 is arranged below the feeding hole 11, and a garbage feeding area 13, a garbage drying area 14, a pyrolysis gasification area 15 and a deslagging and deslagging area 16 are arranged in the bin body 1 from top to bottom. Combustible gas return line 3 installs in rubbish drying zone 14, and burner 4 installs in pyrolysis gasification district 15, and dross removal mechanism 5 installs in slagging-off row sediment district 16, is equipped with flue gas delivery outlet 16 on the lateral wall of pyrolysis gasification district 15.

Garbage is input into a garbage feeding area 13 in the bin body 1 from a feeding hole 11, and the garbage is guided by the guiding and distributing device 2 and then uniformly falls into a garbage drying area 14, the dried garbage falls into a pyrolysis and gasification area 15 to be pyrolyzed and gasified to generate mixed gas of combustible gas, flue gas water vapor and the like, and the mixed gas is output from a flue gas output port 16 and then is separated into water, tar, combustible gas and the like through an external separation and purification system. The combustible gas is added with air through a blower and then flows back to the combustion device 4 for sufficient combustion, and heat is provided for the pyrolysis gasification area 15. A portion of the combustible gas is delivered to the waste drying zone 14 for combustion to provide heat for drying the waste in the waste drying zone.

The combustion apparatus 4 includes an air guide main duct 41, an air guide branch duct 42, and a burner cap 43. One end of the main air guide pipe 41 penetrates through the side wall of the bin body 1 and is communicated with an external combustible gas backflow conveying pipeline, and the other end of the main air guide pipe 41 is connected with one end of the air guide branch pipe 42. The combustion cover 43 covers the air guide branch pipe 42, a plurality of air outlet holes are formed in the air guide branch pipe 42, and a plurality of air passing holes are uniformly distributed in the combustion cover 43. The combustible gas is conveyed from the gas guide main pipe 41 to the gas guide branch pipe 42 and is output to the bin body, and the combustible gas can be uniformly sprayed out through the gas passing holes of the combustion cover 43.

The combustion hoods 43 are trapezoidal with a small upper part and a large lower part, the air guide branch pipes 42 are arranged in parallel in the horizontal direction, and the combustion hoods 43 and the air guide branch pipes 42 are arranged in one-to-one correspondence. The combustible gas entering the pyrolysis gasification zone 15 can be ensured to be uniformly distributed.

The slag removal device 5 comprises a first spiral slag removal device 51 and a second spiral slag removal device 52. First spiral dross removal mechanism 51 and second spiral dross removal mechanism 52 all are the level setting, and second spiral dross removal mechanism 52 is located the bottom in the storehouse body 1, and first spiral dross removal mechanism 51 is located the top of second spiral dross removal mechanism 52 and is perpendicular setting with second spiral dross removal mechanism 52. The first spiral deslagging device 51 and the second spiral deslagging device 52 both comprise a motor and a spiral conveying rod, and the motor drives the spiral conveying rod to rotate so as to convey materials from one end of the spiral conveying rod to the other end of the spiral conveying rod.

The first spiral deslagging devices 51 are arranged in two, the output ends of the two first spiral deslagging devices 51 are opposite and are positioned above the slag outlet 12, and the second spiral deslagging devices 52 are arranged in parallel in a plurality. The second spiral deslagging device 52 uniformly conveys the slag in the deslagging and deslagging area 16 to one side, and the first spiral deslagging device 51 uniformly conveys the slag conveyed to one side to the slag outlet 12.

The combustible gas return pipeline 3 comprises an air inlet pipe 31 and an air distribution pipe 32, one end of the air inlet pipe 31 penetrates through the side wall of the bin body 1, the other end of the air inlet pipe 31 is connected with the air distribution pipe 32, the air distribution pipe 32 is arranged to be multiple and evenly distributed, and a plurality of air outlet holes are formed in the air distribution pipe 32.

The bin body 1 is also provided with a cooling water inlet 17 and a cooling water outlet 18, the cooling water inlet 17 is arranged in the garbage drying area 14, and the cooling water outlet 18 is arranged in the pyrolysis gasification area 15. A cooling water pipe is arranged between the cooling water inlet 17 and the cooling water outlet 18 and penetrates through the interior of the bin body 1, and cooling water enters the interior of the bin body 1 from the cooling water inlet 17, is heated and then is output from the cooling water outlet 18, so that hot water can be provided for other processes or the life of workers.

Under the condition of no oxygen or oxygen deficiency, the garbage utilizes heat energy to make the components of the garbage generate chemical bond breaking, isomerization, micromolecule polymerization and other reactions, and macromolecular organic matters are converted into micromolecule fuel gas, tar and coke. The garbage pyrolysis ignition heating adopts petroleum liquefied gas for ignition, combustible gas generated by pyrolysis is returned to the furnace for combustion after ignition operation, and no fuel or heat source is required to be added in the operation process. The garbage containing high-heat value combustible materials, such as waste paper, plastics and other organic materials, can be treated by a pyrolysis method. The fuel gas generated by pyrolysis is neutral, can prevent dioxin substances from being generated under the anaerobic or low-oxygen condition, saves resources, is environment-friendly, and has low operation cost.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (6)

1. Garbage pyrolysis gasification system, its characterized in that: including the storehouse body (1), direction diverging device (2), combustible gas return line (3), burner (4) and dross removal mechanism (5), the top of the storehouse body (1) is equipped with feed inlet (11), the lower extreme of the storehouse body (1) is equipped with slag notch (12), direction diverging device (2) are installed in the below of feed inlet (11), top-down is equipped with rubbish feeding zone (13), rubbish drying zone (14), pyrolysis gasification district (15) and slagging-off sediment district (16) in the storehouse body (1), combustible gas return line (3) are installed in rubbish drying zone (14), burner (4) are installed in pyrolysis gasification district (15), dross removal mechanism (5) are installed in slagging-off sediment district (16).

2. The garbage pyrolysis gasification system of claim 1, wherein the combustion device (4) comprises a main air guide pipe (41), a branch air guide pipe (42) and a combustion cover (43), one end of the main air guide pipe (41) penetrates through the side wall of the bin body (1), the other end of the main air guide pipe (41) is connected with one end of the branch air guide pipe (42), the combustion cover (43) covers the branch air guide pipe (42), the branch air guide pipe (42) is provided with a plurality of air outlet holes, and the combustion cover (43) is provided with a plurality of air passing holes which are uniformly distributed.

3. The garbage pyrolysis gasification system of claim 2, wherein the combustion hoods (43) are in a trapezoid shape with a small upper part and a large lower part, the plurality of air guide branch pipes (42) are arranged in parallel in the horizontal direction, and the combustion hoods (43) and the air guide branch pipes (42) are arranged in one-to-one correspondence.

4. The waste pyrolysis gasification system of claim 1, 2 or 3, characterized in that the deslagging device (5) comprises a first spiral deslagging device (51) and a second spiral deslagging device (52), the first spiral deslagging device (51) and the second spiral deslagging device (52) are both horizontally arranged, the second spiral deslagging device (52) is positioned at the bottom of the bin body (1), and the first spiral deslagging device (51) is positioned above the second spiral deslagging device (52) and is vertically arranged with the second spiral deslagging device (52).

5. The waste pyrolysis gasification system of claim 4, wherein the first spiral deslagging device (51) is provided in two, the output ends of the two first spiral deslagging devices (51) are opposite and correspond to the slag outlet (12), and the second spiral deslagging device (52) is provided in parallel in plurality.

6. The garbage pyrolysis gasification system of claim 1, wherein the combustible gas return pipeline (3) comprises an air inlet pipe (31) and an air distribution pipe (32), one end of the air inlet pipe (31) penetrates through the side wall of the bin body (1), the other end of the air inlet pipe (31) is connected with the air distribution pipe (32), the air distribution pipe (32) is provided with a plurality of air outlets which are uniformly distributed, and the air distribution pipe (32) is provided with a plurality of air outlets.

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