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CN-224215337-U - Kitchen garbage incinerator

CN224215337UCN 224215337 UCN224215337 UCN 224215337UCN-224215337-U

Abstract

The utility model discloses a kitchen waste incinerator, which comprises a hearth, wherein a plurality of air chambers are arranged at the lower part of the hearth, a recirculation flue gas inlet and a primary air inlet are formed in the air chambers, a primary baffle and a secondary baffle are arranged in the air chambers, the primary baffle is arranged at the middle part of an inner cavity of the air chambers and is positioned at the upper part of the circulation flue gas inlet, a channel is formed between the primary baffle and the inner side wall of the air chambers, the secondary baffle is arranged on the wall surface of the bottom of the air chamber at the upper part of the primary baffle, and a mixed gas channel is formed at the middle part of the secondary baffle and is communicated with the hearth. Compared with the prior art, the method has the advantages that high-temperature flue gas accounting for 10% of the total amount is introduced for recycling, the temperature is high, the oxygen content is low, the combustion is strong, the generation amount of nitrogen oxides is low, the primary baffle plate and the secondary baffle plate are additionally arranged in the air chamber, the recycled flue gas forms broken flow after impacting the primary baffle plate, and primary air is uniformly mixed into high-temperature low-oxygen gas in the space between the primary baffle plate and the secondary baffle plate, so that the energy consumption is reduced.

Inventors

  • LIU XIAOZHOU
  • LI SHENGHUA
  • WANG ZHANZHI

Assignees

  • 广东工业大学

Dates

Publication Date
20260508
Application Date
20241224

Claims (6)

  1. 1. The kitchen waste incinerator is characterized by comprising a hearth (1), wherein a plurality of air chambers (12) are arranged at the lower part of the hearth (1), a recycling flue gas inlet and a primary air inlet are formed in the air chambers (12), an air inlet fan (11) is arranged at the primary air inlet, a primary baffle (15) is arranged in the air chambers (12), the primary baffle (15) is arranged in the middle of an inner cavity of the air chambers (12) and is positioned at the upper part of a recycling flue gas inlet, a channel (14) is formed between the primary baffle (15) and the inner side wall of the air chambers (12), a branch recycling pipeline is arranged on an exhaust flue gas pipe (2) of the hearth (1) and is connected with an inlet of a recycling fan (10), and an outlet of the recycling fan (10) is respectively connected with the recycling flue gas inlet of each air chamber (12) arranged on the garbage incinerator.
  2. 2. Kitchen waste incinerator according to claim 1, characterized in that the edge of the primary baffle (15) is provided with a bending part which bends downwards, the circulating flue gas sprayed from the head-on is mixed in a turning way and overflows from the channel (14), and the circulating flue gas is enabled to form a broken flow after striking the primary baffle (15).
  3. 3. The kitchen waste incinerator according to claim 2, wherein the air chamber (12) is provided with a secondary baffle (13), the secondary baffle (13) is arranged on the side wall of the air chamber (12) at the upper part of the primary baffle (15), and a gas mixture channel is formed in the middle of the secondary baffle (13) and communicated with the hearth (1).
  4. 4. A kitchen waste incinerator according to claim 3, wherein the primary air inlet is arranged on the bottom wall of the air chamber between the primary baffle (15) and the secondary baffle (13).
  5. 5. The kitchen waste incinerator according to claim 4, wherein the primary baffle (15) is installed at 1/2 of the height of the air chamber (12), the width is 1/2 of the width of the air chamber at the same height, the downward inclination angle is 30-60 degrees, and the height away from the bottom is 1/4 of the total height of the air chamber.
  6. 6. The kitchen waste incinerator according to claim 4, wherein the secondary baffle (13) is installed at 3/4 of the height of the air chamber (12) and is divided into left and right blocks, and the width of each block is 1/4 of the width of the air chamber at the same height.

Description

Kitchen garbage incinerator Technical Field The utility model belongs to the technical field of garbage incinerators, and particularly relates to a kitchen garbage incinerator. Background The yield of kitchen waste in urban solid waste is increased year by year. Because the water content of the kitchen waste is far higher than that of common municipal solid waste, the heat value is low, the fire is difficult, the common municipal solid waste incinerator is not applicable any more, and the development of an energy-saving kitchen waste incinerator capable of realizing environment-friendly emission is urgently needed. Disclosure of utility model The utility model aims to overcome the defects of the prior art, and provides the kitchen waste incinerator which is specially used for kitchen waste treatment, so that the solid waste treatment cost can be saved, and the energy consumption can be reduced. The technical scheme includes that the kitchen waste incinerator comprises a hearth 1, a plurality of air chambers 12 are arranged at the lower part of the hearth 1, a recycling flue gas inlet and a primary air inlet are formed in the air chambers 12, a primary baffle 15 is arranged in the air chambers 12, the primary baffle 15 is arranged in the middle of an inner cavity of the air chambers 12 and is positioned at the upper part of the recycling flue gas inlet, and a channel 14 is formed between the primary baffle 15 and the inner side wall of the air chambers 12. Preferably, the edge of the primary baffle 15 has a bent portion that bends downwards, so that the circulating flue gas sprayed from the head-on is mixed in a turned-back manner and overflows from the channel 14, and the circulating flue gas collides with the primary baffle 15 to form a broken flow, so that the combustion-supporting mixed gas is more uniformly mixed. Preferably, the air chamber 12 is provided with a secondary baffle 13, the secondary baffle 13 is arranged on the side wall of the air chamber 12 at the upper part of the primary baffle 15, and a mixed gas channel is formed at the middle part of the secondary baffle 13 and communicated with the hearth 1. The primary air inlet is arranged on the bottom wall surface of the air chamber between the primary baffle 15 and the secondary baffle 13. The primary baffle 15 is mounted at 1/2 of the height of the plenum 12 and has a width of 1/2 of the height of the plenum, is inclined downwardly at an angle of 30-60 degrees, and has a height from the bottom of 1/4 of the total height of the plenum. The secondary baffle 13 is arranged at the 3/4 height of the air chamber 12 and is divided into a left block and a right block, and the width of each block is 1/4 of the width of the air chamber with the same height. The exhaust smoke pipe 2 of the hearth 1 is provided with a branch recirculation pipeline connected with the inlet of a recirculation fan 10, the outlet of the recirculation fan 10 is respectively connected with the recirculation smoke inlets of all air chambers 12 arranged on the garbage incinerator, and high-temperature smoke accounting for 10% of the total amount in the introducing flue is mixed with primary air in the air chambers 12 and enters the hearth to support combustion, so that the temperature in the hearth is high, the oxygen content is low, the combustion is strong, and the generation amount of nitrogen oxides is reduced. Compared with the prior art, the utility model has the advantages that the high-temperature flue gas accounting for 10 percent of the total amount is introduced and extracted in the flue and mixed with the primary air in the wind box, the temperature is high, the oxygen content is low, the combustion is strong, the nitrogen oxide generation amount is low, the high-temperature flue gas can increase the primary air temperature, reduce the consumption of the primary air for heating steam and reduce the energy consumption, the primary baffle and the secondary baffle are additionally arranged in the wind box, the recycled flue gas forms crushed flow after impacting the primary baffle, and the primary air is uniformly mixed into high-temperature low-oxygen gas in the space between the primary baffle and the secondary baffle, so that the energy consumption is reduced. Drawings In order to more clearly illustrate the embodiments of the present utility model or the prior art, the drawings that are required in the description of the embodiments or the prior art will be briefly described, it will be apparent that the drawings in the description below are some embodiments of the present utility model and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. FIG. 1 is a flow chart 1 of an environment-friendly discharge system of a garbage incinerator. Detailed Description The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is app