CN111828986A

CN111828986A - Urban domestic waste burns power generation system

Info

Publication number: CN111828986A
Application number: CN202010727794.7A
Authority: CN
Inventors: 管凯迎; 张文龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2020-10-27

Abstract

The invention belongs to the technical field of waste incineration power generation, and particularly relates to an urban domestic waste incineration power generation system which comprises a shell, power generation equipment, a feed hopper and a secondary combustion chamber, wherein the inner side of the shell is divided into a water storage cavity, a primary combustion chamber and a collection cavity from top to bottom through a heat conduction plate and a grid plate; a power generation device is arranged on the left side of the water inlet; the feed hopper is arranged at the side end of the shell and is communicated with the inner side of the primary combustion chamber; the secondary combustion chamber is arranged to carry out secondary combustion on smoke dust generated after combustion, then the heat generated by the secondary combustion is introduced into the heat conduction pipe wound on the side wall of the water storage cavity to be heated again, the heating efficiency is high, smoke emission is reduced, and the heating cavity and the serpentine pipe are arranged, so that the heat in the heat conduction pipe enters the primary heating cavity to primarily heat water flowing in the serpentine pipe, waste heat utilization is realized, and the time for the water to reach a boiling point after entering the water storage cavity is shortened.

Description

Urban domestic waste burns power generation system

Technical Field

The invention belongs to the technical field of waste incineration power generation, and particularly relates to an urban household garbage incineration power generation system.

Background

Solid waste produced by people in or for activities that provide services to daily life, and solid waste that is considered to be household waste by law, administrative law. The garbage collection and treatment system mainly comprises resident household garbage, municipal trade and commercial garbage, public place garbage, street cleaning garbage, enterprise and public institution garbage and the like.

Along with the rapid development of the socioeconomic rapid progress of China and the rapid improvement of the living standard of people, the garbage generated in the urban production and living process is rapidly increased, and the domestic garbage occupies land, pollutes the environment and has more obvious influence on the health of people. The increasing of the amount of municipal domestic waste makes the waste treatment more and more difficult, and the problems of environmental pollution and the like caused by the increase gradually draw attention from all social circles. In China, to realize industrialization, resource utilization, reduction and harmlessness of municipal domestic garbage, domestic garbage which is mixed for collection, has low content and heat value of recoverable substances and high water content and biodegradable organic content of the garbage must be confronted. In response to these problems, various techniques are also applied.

The garbage incineration power generation is a resource recycling treatment mode, the existing garbage incineration power generation process is prone to insufficient garbage combustion, a large amount of harmful smoke is easily generated and discharged into the air, the heat utilization rate generated during garbage incineration is low, meanwhile, substances generated after household garbage combustion are not timely cleaned, the combustion efficiency of the household garbage is easily influenced by covering the household garbage, and the substances after the household garbage combustion are inconvenient to clean.

Disclosure of Invention

The invention provides an urban domestic garbage incineration power generation system, which aims to make up for the defects of the prior art, solve the problems that garbage combustion is insufficient, a large amount of harmful smoke and dust are easily generated and discharged into the air, the utilization rate of heat generated during garbage incineration is low, substances generated after domestic garbage combustion are not cleaned in time, the combustion efficiency of domestic garbage is easily influenced by covering the domestic garbage, and the substances generated after the domestic garbage combustion are not cleaned conveniently.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an urban domestic garbage incineration power generation system which comprises a shell, power generation equipment, a feed hopper and a secondary combustion chamber, wherein the inner side of the shell is divided into a water storage cavity, a primary combustion chamber and a collection cavity from top to bottom through a heat conduction plate and a grid plate; the top of the shell is provided with a water inlet, and a sealing plug is arranged at the water inlet; a power generation device is arranged on the left side of the water inlet; the feed hopper is arranged at the side end of the shell, is communicated with the inner side of the primary combustion chamber and is used for adding household garbage; the secondary combustion chamber is arranged on a bearing plate fixed at the side end of the shell and is communicated with the primary combustion chamber through a communicating pipe, and the secondary combustion chamber is also communicated with a heat conducting pipe wound on the side wall of the water storage cavity through a circulating pipe; the water storage cavity is communicated with power generation equipment through an air duct; the front wall of the primary combustion chamber is hinged with a furnace door; igniters are arranged at the bottom of the inner side of the secondary combustion chamber and the left side wall of the primary combustion chamber; the outer side of the primary combustion chamber is provided with a blower which is communicated with the inner side of the primary combustion chamber through a guide pipe; the upper surface of the heat conducting plate is fixedly connected with heat conducting boxes which are uniformly arranged; the heat conduction box extends into the water storage cavity and is sealed with the water storage cavity; the inner space of the heat conduction box is communicated with the primary combustion chamber through a heat conduction groove formed in the surface of the heat conduction plate; the heat conducting plate and the heat conducting box are both made of copper materials; when the water heater works, water is added into the water storage cavity through the water inlet, household garbage is added into the primary combustion chamber through the feed hopper, the household garbage in the primary combustion chamber is ignited through the igniter, the household garbage is combusted to generate a large amount of heat, water in the water storage cavity is heated through the heat conducting plate and the heat conducting box, the contact area between the water and the heat is increased through the heat conducting box, so that the utilization rate of the heat is increased, the boiling speed of the water is increased, meanwhile, in the combustion process of the household garbage in the primary combustion chamber, flue gas generated by combustion enters the secondary combustion chamber, combustible substances in the flue gas are ignited through the igniter in the secondary combustion chamber, the flue gas is further combusted to purify the flue gas, the heat generated by combustion is conducted into the heat conducting pipe through the circulating pipe, the water in the water storage cavity is further heated through the heat conducting pipe, the evaporation speed of the water is, realize steam power generation, the generating efficiency is high, resource consumption is low, and exhaust flue gas is after the postcombustion, to environmental pollution greatly reduced, simultaneously provide sufficient oxygen to a combustion chamber through the forced draught blower in the rubbish combustion process in the combustion chamber, can make the domestic waste burning more thorough, improve resource utilization, domestic waste after the burning passes through the grid board and drops, prevent that the material after the domestic waste burning from piling up too much influence domestic waste's combustion efficiency, accessible furnace gate is cleared up the material after the domestic waste burning that can't pass through the grid board to grid board top simultaneously, thereby improve the life of grid board, prevent that the material after the burning from blockking up the grid board.

Preferably, the left side of the shell is provided with an opening, the opening is communicated with the collecting cavity, and the opening is connected with a waste residue collecting box in a sliding manner; the waste residue collecting box is positioned in the collecting cavity; during operation, the material that the domestic waste after burning produced drops in the waste residue collection box through the grid board, takes the waste residue collection box out through the opening and can conveniently collect the material after the domestic waste burns in the waste residue collection box, prevents that the material after the domestic waste burns from piling up the burning that influences domestic waste, and collects the box through the waste residue and more conveniently clears up collecting the chamber.

Preferably, the grid plate comprises a frame and evenly arranged turning plates; the frame is fixedly connected with the inner wall of the shell; the rotating plate is rotatably connected to the inner wall of the frame through a rotating shaft; the section of the rotating plate is designed in a shuttle shape; the inner wall of the frame is provided with a sliding chute; a rack is connected in the sliding groove in a sliding manner; a gear is fixedly sleeved on the surface of one end, close to the rack, of the rotating shaft through a buffer ring, and the gear is meshed with the rack; the lower end of the left side of the rack is fixedly connected with a driving rod; the driving rod is in a Z-shaped design, when the right end of the rack is tightly attached to the side wall of the sliding chute, the rotating plates are in a vertical state, when the left end of the rack is tightly attached to the side wall of the sliding chute, the rotating plates are in a horizontal state, and the rotating plates in the horizontal state are arranged in a contact manner with each other; the inner wall of the right side of the shell is fixedly connected with a spring at the position of the driving rod, the spring is in a compressed state, and one end of the spring is designed to be tightly attached to the surface of the driving rod; the lower end of the driving rod extends to the right side of the waste residue collecting box; when the garbage collecting box works, in the process that the garbage collecting box is inserted into the collecting cavity through the opening, the right side surface of the garbage collecting box contacts with the driving rod and pushes the driving rod to move right, so that the driving rod drives the rack to move right, the gear drives the rotating plates to rotate through the rotating shaft, after the right end of the rack contacts with the side wall of the chute, the rotating plates are in a vertical state when the driving rod is tightly attached to the collecting cavity, a gap is formed between every two adjacent rotating plates, substances generated by combustion of household garbage can fall into the garbage collecting box through the gap, in the process that the garbage collecting box is drawn out through the opening, the driving rod drives the rack to move left under the action of the spring, the rotating plates are driven to rotate reversely through the engagement of the gear and the rack, after the left end of the rack contacts with the side wall of the chute, the rotating plates are in horizontal rotation, the, the intracavity is being piled up in the meeting that the domestic waste burning produced, cause the trouble problem of clearance, rotate the in-process at the rotor plate simultaneously, clearance between the rotor plate changes, stir the material behind the rotor plate top domestic waste burning, improve the speed that the material after the domestic waste burning passes through the rotor plate clearance, prevent that the material after the domestic waste burning from blockking up the rotor plate, influence the burning of domestic waste, gear rotation drive rotor plate rotates the in-process simultaneously, can effectively provide the buffering to the rotor plate through the cushion ring, prevent the material that produces after the dead domestic waste burning of rotor plate card, influence the gear, the life of rack and rotor plate.

Preferably, the inner parts of the lower ends of the rotating plates in a vertical state are fixedly connected with a first magnet; an adjusting groove is formed in the bottom of the waste residue collecting box; an adjusting plate is connected in the adjusting groove in a sliding manner; second magnets which are uniformly arranged are arranged in the adjusting plate; the first magnet and the second magnet are oppositely arranged in opposite magnetic poles; the buffer ring is made of elastic rubber material; the during operation, after the box is collected to the waste residue inserts completely, the rotor plate is in during vertical state, slide in making regulating plate and adjustment tank through manual reciprocal, because first magnet and second magnet opposite magnetic pole set up relatively, the elastic rubber material of cooperation buffering ring makes, at regulating plate reciprocating motion in-process, can make the rotor plate swing, thereby change the clearance between the rotor plate, thereby realize stirring the material that produces behind the rotor plate top domestic waste burning, the speed that the material that produces behind the improvement domestic waste burning passes through the rotor plate clearance, thereby improve domestic waste's combustion efficiency, the rotor plate swing can prevent that the material that produces behind the domestic waste burning from blockking up the clearance between the rotor plate simultaneously.

Preferably, the inner side of the feed hopper is hinged with a baffle, and the middle position of the lower end of the baffle is connected with the inner wall of the feed hopper through a spring; the during operation, when adding domestic waste through the feeder hopper, because domestic waste's gravity makes the baffle swing, opens the feeder hopper, and domestic waste gets into in the combustion chamber, and when not adding domestic waste, the baffle does not receive domestic waste gravity to influence, swings under the spring action, and sealed feeder hopper realizes the sealed to the feeder hopper, can prevent effectively that the heat that the combustion produced in the combustion chamber from passing through the feeder hopper discharge, improves thermal utilization ratio, resources are saved's consumption.

Preferably, a primary heating cavity is wrapped outside the coiled pipe communicated with the water storage cavity, the primary heating cavity is communicated with the heat conduction pipe through a guide pipe, and an exhaust port is arranged at the upper end of the primary heating cavity; during operation, the heat in the heat conduction pipe enters into the primary heating intracavity and carries out the primary heating to the water that flows in the serpentine pipe, can reduce the time that the water reaches the boiling point after entering into the water storage intracavity when realizing waste heat utilization.

The invention has the following beneficial effects:

1. according to the urban domestic garbage incineration power generation system, when the waste residue collection box is drawn out through the opening, the driving rod drives the rack to move left under the action of the spring, the rotating plate is driven to rotate reversely through the meshing of the gear and the rack, after the left end of the rack contacts the side wall of the sliding groove, the rotating plate rotates horizontally, adjacent rotating plates contact with each other, and the gap is sealed, so that the problem that after the waste residue collection box is drawn out, domestic garbage generated by combustion is accumulated in the collection cavity to cause trouble in cleaning is effectively solved.

2. According to the urban household garbage incineration power generation system, substances after household garbage is combusted above the rotating plates are stirred through the change of the gaps among the rotating plates, the speed of the substances after the household garbage is combusted through the gaps of the rotating plates is improved, the rotating plates are prevented from being blocked by the substances after the household garbage is combusted, the combustion of the household garbage is influenced, meanwhile, in the process that the rotating plates are driven by the rotation of the gears to rotate, the rotating plates can be effectively buffered through the buffer rings, the substances generated after the household garbage is combusted are prevented from being blocked by the rotating plates, and the service lives of the gears, the racks and the rotating plates are prevented from being influenced.

3. According to the urban household garbage incineration power generation system, the adjusting plate and the adjusting groove slide in a manual reciprocating mode, and the gap between the rotating plates is changed, so that substances generated after household garbage is combusted above the rotating plates are stirred, the speed of the substances generated after the household garbage is combusted passing through the gap between the rotating plates is increased, the combustion efficiency of the household garbage is improved, and meanwhile, the rotating plates swing to prevent the substances generated after the household garbage is combusted from blocking the gap between the rotating plates.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a partial cross-sectional view at the rotating plate of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

FIG. 5 is an enlarged view of a portion of FIG. 2 at B;

in the figure: the device comprises a shell 1, a power generation device 2, a primary heating cavity 3, a feed hopper 4, a blower 5, a waste residue collection box 6, a furnace door 7, a secondary combustion chamber 8, a bearing plate 9, a water storage cavity 10, a primary combustion chamber 11, a collection cavity 12, a heat conduction pipe 13, a heat conduction plate 14, a grating plate 15, a frame 151, a rotating plate 152, a rack 153, a buffer ring 154, a gear 155, a driving rod 156, a sliding groove 157, a communication pipe 16, a circulation pipe 17, an igniter 18, a coiled pipe 19, a baffle plate 20, a water inlet 21, a heat conduction box 22, a heat conduction groove 23, a first magnet 24, an adjusting groove 25, an adjusting plate 26 and a second magnet.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the municipal solid waste incineration power generation system comprises a housing 1, power generation equipment 2, a feed hopper 4 and a secondary combustion chamber 8, wherein the inner side of the housing 1 is divided into a water storage cavity 10, a primary combustion chamber 11 and a collection cavity 12 from top to bottom through a heat conduction plate 14 and a grid plate 15; a water inlet 21 is formed in the top of the shell 1, and a sealing plug is arranged at the position of the water inlet 21; the left side of the water inlet 21 is provided with a power generation device 2; the feed hopper 4 is arranged at the side end of the shell 1, is communicated with the inner side of the primary combustion chamber 11 and is used for adding household garbage; the secondary combustion chamber 8 is arranged on a bearing plate 9 fixed at the side end of the shell 1 and is communicated with the primary combustion chamber 11 through a communicating pipe 16, and the secondary combustion chamber 8 is also communicated with a heat conducting pipe 13 wound on the side wall of the water storage cavity 10 through a circulating pipe 17; the water storage cavity 10 is communicated with the power generation equipment 2 through an air duct; the front wall of the primary combustion chamber 11 is hinged with a furnace door 7; the bottom of the inner side of the secondary combustion chamber 8 and the left side wall of the primary combustion chamber 11 are both provided with igniters 18; a blower 5 is arranged on the outer side of the primary combustion chamber 11, and the blower 5 is communicated with the inner side of the primary combustion chamber 11 through a conduit; the upper surface of the heat conducting plate is fixedly connected with heat conducting boxes 22 which are uniformly arranged; the heat conduction box 22 extends into the water storage cavity 10, and the heat conduction box 22 and the water storage cavity 10 are sealed; the space in the heat conduction box 22 is communicated with the primary combustion chamber 11 through a heat conduction groove 23 formed in the surface of the heat conduction plate 14; the heat conducting plate 14 and the heat conducting box 22 are made of copper materials; when the water heater works, water is added into the water storage cavity 10 through the water inlet 21, household garbage is added into the primary combustion chamber 11 through the feed hopper 4, the household garbage in the primary combustion chamber 11 is ignited through the igniter 18, the household garbage burns to generate a large amount of heat, the water in the water storage cavity 10 is heated through the heat conduction plate 14 and the heat conduction box 22, the contact area between the water and the heat is increased through the heat conduction box 22, so that the utilization rate of the heat is increased, the boiling speed of the water is increased, meanwhile, in the combustion process of the household garbage in the primary combustion chamber 11, flue gas generated by burning enters the secondary combustion chamber 8, combustible substances in the flue gas are ignited through the igniter 18 in the secondary combustion chamber 8, the flue gas is further burnt to purify the flue gas, the heat generated by burning is guided into the heat conduction pipe 13 through the circulation pipe 17, the water in the water storage cavity 10 is further heated through the heat conduction pipe 13, and the evaporation, steam that the water evaporation produced gets into power generation facility 2 in, realize steam power generation, the generating efficiency is high, resource consumption is low, and exhaust flue gas is after the afterburning, to environmental pollution greatly reduced, simultaneously in the 11 interior rubbish combustion processes of once combustion chamber provide sufficient oxygen to once combustion chamber 11 through forced draught blower 5, can make domestic waste burn more thoroughly, improve resource utilization, domestic waste after the burning drops through grid plate 15, prevent that the material after the domestic waste burning from piling up too much influence domestic waste's combustion efficiency, accessible furnace gate 7 clears up the material after the unable domestic waste burning through grid plate 15 in grid plate 15 top simultaneously, thereby improve grid plate 15's life, prevent that the material after the burning from blockking up grid plate 15.

As an embodiment of the invention, the left side of the shell 1 is provided with an opening which is communicated with the collecting cavity 12, and the opening is connected with the waste residue collecting box 6 in a sliding way; the waste residue collecting box 6 is positioned in the collecting cavity 12; during operation, the material that the domestic waste after burning produced drops in waste residue collection box 6 through grid plate 15, takes out waste residue collection box 6 through the opening and can conveniently collect the material after the domestic waste burns in the waste residue collection box 6, prevents that the material after the domestic waste burns from piling up the burning that influences domestic waste, and collects box 6 through the waste residue and more conveniently clears up collection chamber 12.

As an embodiment of the present invention, the grid plate 15 comprises a frame 151 and uniformly arranged turning plates 152; the frame 151 is fixedly connected with the inner wall of the shell 1; the rotating plate 152 is rotatably connected to the inner wall of the frame 151 through a rotating shaft; the section of the rotating plate 152 is designed in a shuttle shape; the inner wall of the frame 151 is provided with a sliding groove 157; a rack 153 is connected in the sliding groove 157 in a sliding manner; the surface of one end of the rotating shaft, which is close to the rack 153, is fixedly sleeved with a gear 155 through a buffer ring 154, and the gear 155 is meshed with the rack 153; the lower end of the left side of the rack 153 is fixedly connected with a driving rod 156; the driving rod 156 is in a Z-shaped design, when the right end of the rack 153 is tightly attached to the side wall of the sliding groove 157, the rotating plates 152 are in a vertical state, when the left end of the rack 153 is tightly attached to the side wall of the sliding groove 157, the rotating plates 152 are in a horizontal state, and the rotating plates 152 in the horizontal state are arranged in a contact manner with each other; a spring is fixedly connected to the inner wall of the right side of the shell 1 at the position of the driving rod 156, the spring is in a compressed state, and one end of the spring is designed to be tightly attached to the surface of the driving rod 156; the lower end of the driving rod 156 extends to the right side of the waste residue collection box 6; when the garbage collecting box 6 works, in the process that the garbage collecting box 6 is inserted into the collecting cavity 12 through the opening, the right side surface of the garbage collecting box 6 contacts the driving rod 156 and pushes the driving rod 156 to move rightwards, so that the driving rod 156 drives the rack 153 to move rightwards, the gear 155 is meshed with the rack 153, the gear 155 drives the rotating plates 152 to rotate through the rotating shaft, after the right end of the rack 153 contacts the side wall of the sliding groove 157, the rotating plates 152 are in a vertical state when the driving rod 156 clings to the collecting cavity 12, a gap is formed between every two adjacent rotating plates 152, substances generated by combustion of household garbage can fall into the garbage collecting box 6 through the gap, in the process that the garbage collecting box 6 is drawn out through the opening, the driving rod 156 drives the rack 153 to move leftwards under the action of the spring, the rotating plates 152 are driven to rotate reversely through the meshing of the gear 155 and the rack 153, adjacent rotating plates 152 contact with each other, the gap is sealed, thereby effectively preventing the waste residue collecting box 6 from being taken out, the burning of the household garbage can be accumulated in the collecting cavity 12, and the problem of troublesome cleaning is caused, meanwhile, in the rotating plate 152 rotating process, the gap between the rotating plates 152 is changed, the substances above the rotating plates 152 after the burning of the household garbage are stirred, the speed of the substances after the burning of the household garbage passing through the gap of the rotating plates 152 is improved, the rotating plates 152 are prevented from being blocked by the substances after the burning of the household garbage, the burning of the household garbage is influenced, meanwhile, the rotating plates 152 are driven by the rotation of the gear 155, the buffer ring 154 can effectively buffer the rotating plates 152, the substances generated after the burning of the household garbage are prevented from being blocked by the rotating plates 152, and the service lives of the gear 155, the rack 153 and the rotating plates.

As an embodiment of the present invention, the inside of the lower end of the rotating plate 152 in the vertical state is fixedly connected with a first magnet 24; an adjusting groove 25 is formed in the bottom of the waste residue collecting box 6; an adjusting plate 26 is connected in the adjusting groove 25 in a sliding manner; second magnets 27 are uniformly arranged in the adjusting plate 26; the first magnet 24 and the second magnet 27 are arranged oppositely in opposite magnetic poles; the cushion ring 154 is made of elastic rubber material; in operation, after the waste residue collection box 6 inserts completely, the rotor plate 152 is in vertical state, slide in making regulating plate 26 and adjustment tank 25 through manual reciprocal, because first magnet 24 and the relative setting of second magnet 27 opposite magnetic pole, the elastic rubber material of cooperation buffer ring 154 makes, in regulating plate 26 reciprocating motion in-process, can make rotor plate 152 swing, thereby change the clearance size between the rotor plate 152, thereby realize stirring the material that produces behind the burning of domestic waste above the rotor plate 152, improve the speed that the material that produces behind the burning of domestic waste passes through rotor plate 152 clearance, thereby improve domestic waste's combustion efficiency, rotor plate 152 swings simultaneously and can prevent that the material that produces behind the burning of domestic waste from blockking up the clearance between the rotor plate 152.

As an embodiment of the invention, the inner side of the feed hopper 4 is hinged with a baffle 20, and the middle position of the lower end of the baffle 20 is connected with the inner wall of the feed hopper 4 through a spring; the during operation, when adding domestic waste through feeder hopper 4, because domestic waste's gravity makes baffle 20 swing, open feeder hopper 4, domestic waste gets into combustion chamber 11 once, when not adding domestic waste, baffle 20 does not receive domestic waste gravity to influence, swing under the spring action, sealed feeder hopper 4, the realization is to the sealed of feeder hopper 4, can prevent effectively that the heat that the burning produced in combustion chamber 11 from discharging through feeder hopper 4, improve thermal utilization ratio, resources are saved's consumption.

As an embodiment of the present invention, a preliminary heating chamber 3 is wrapped outside a coiled pipe 19 communicating with the water storage chamber 10, the preliminary heating chamber 3 is communicated with the heat conduction pipe 13 through a conduit, and an exhaust port is arranged at the upper end of the preliminary heating chamber 3; during operation, the heat in the heat conduction pipe 13 enters the primary heating cavity 3 to primarily heat the water flowing in the coiled pipe 19, so that the time for the water to reach the boiling point after entering the water storage cavity 10 can be shortened while the waste heat is utilized.

The specific working process is as follows:

when the water heater works, water is added into the water storage cavity 10 through the water inlet 21, household garbage is added into the primary combustion chamber 11 through the feed hopper 4, the household garbage in the primary combustion chamber 11 is ignited through the igniter 18, the household garbage burns to generate a large amount of heat, the water in the water storage cavity 10 is heated through the heat conduction plate 14 and the heat conduction box 22, in the burning process of the household garbage in the primary combustion chamber 11, smoke generated by burning enters the secondary combustion chamber 8, combustible substances in the smoke are ignited through the igniter 18 in the secondary combustion chamber 8, the smoke is further burnt, the heat generated by burning is guided into the heat conduction pipe 13 through the circulating pipe 17, the water in the water storage cavity 10 is further heated through the heat conduction pipe 13, water vapor generated by water evaporation enters the power generation equipment 2 to realize steam power generation, and meanwhile, sufficient oxygen is provided for the primary combustion chamber 11 through the blower 5 in the burning process of the garbage in the primary combustion chamber 11, the burned domestic garbage falls through the grid plate 15, and the burned substance of the domestic garbage in the waste residue collection box 6 can be conveniently collected by drawing out the waste residue collection box 6 through the opening in the waste residue collection box 6; meanwhile, the substances above the grid plate 15 which can not pass through the grid plate 15 after the domestic garbage is combusted can be cleaned through the furnace door 7;

in the process that the waste residue collection box 6 is inserted into the collection cavity 12 through the opening, the right side surface of the waste residue collection box 6 contacts the driving rod 156 and pushes the driving rod 156 to move rightwards, so that the driving rod 156 drives the rack 153 to move rightwards, the gear 155 is meshed with the rack 153, the gear 155 drives the rotating plate 152 to rotate through the rotating shaft, after the right end of the rack 153 contacts the side wall of the sliding groove 157, the rotating plate 152 is in a vertical state when the driving rod 156 clings to the collection cavity 12, a gap is formed between two adjacent rotating plates 152, so that substances generated by combustion of household garbage can fall into the waste residue collection box 6 through the gap, in the process that the waste residue collection box 6 is drawn out through the opening, the driving rod 156 drives the rack 153 to move leftwards under the action of a spring, the rotating plate 152 is driven to rotate reversely through the meshing of the gear 155 and the rack 153, the adjacent rotating plates 152 are contacted with each other to seal the gap, so that the burning of the household garbage can be effectively prevented from accumulating in the collecting cavity 12 after the waste residue collecting box 6 is pulled out, meanwhile, the gap between the rotating plates 152 is changed in the rotating process of the rotating plates 152, the burnt substances of the household garbage above the rotating plates 152 are stirred, after the waste residue collecting box 6 is completely inserted, the adjusting plate 26 and the adjusting groove 25 slide in a manual reciprocating mode when the rotating plates 152 are in a vertical state, and the first magnet 24 and the second magnet 27 are oppositely arranged in opposite magnetic poles and are made of elastic rubber materials matched with the buffer ring 154, so that the rotating plates 152 can swing in the reciprocating motion process of the adjusting plate 26, the size of the gap between the rotating plates 152 is changed, and the substances generated after the burning of the household garbage above the rotating plates 152 are further stirred;

when adding domestic waste through feeder hopper 4, because domestic waste's gravity makes baffle 20 swing, opens feeder hopper 4, and domestic waste gets into combustion chamber 11 once, and when not adding domestic waste, baffle 20 does not receive domestic waste gravity to influence, swings under the spring action, and sealed feeder hopper 4 realizes the sealed to feeder hopper 4, and the heat in the heat pipe 13 enters into preliminary heating chamber 3 and carries out preliminary heating to the water that flows in the coiled pipe 19.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An urban domestic garbage incineration power generation system comprises a shell (1), power generation equipment (2), a feed hopper (4) and a secondary combustion chamber (8), wherein the inner side of the shell (1) is divided into a water storage cavity (10), a primary combustion chamber (11) and a collection cavity (12) from top to bottom through a heat conduction plate (14) and a grid plate (15); a water inlet (21) is formed in the top of the shell (1), and a sealing plug is arranged at the water inlet (21); a power generation device (2) is arranged on the left side of the water inlet (21); the feed hopper (4) is arranged at the side end of the shell (1), is communicated with the inner side of the primary combustion chamber (11) and is used for adding household garbage; the method is characterized in that: the secondary combustion chamber (8) is arranged on a bearing plate (9) fixed at the side end of the shell (1) and is communicated with the primary combustion chamber (11) through a communicating pipe (16), and the secondary combustion chamber (8) is also communicated with a heat conducting pipe (13) wound on the side wall of the water storage cavity (10) through a circulating pipe (17); the water storage cavity (10) is communicated with the power generation equipment (2) through an air duct; the front wall of the primary combustion chamber (11) is hinged with a furnace door (7); igniters (18) are arranged at the bottom of the inner side of the secondary combustion chamber (8) and the left side wall of the primary combustion chamber (11); a blower (5) is arranged on the outer side of the primary combustion chamber (11), and the blower (5) is communicated with the inner side of the primary combustion chamber (11) through a guide pipe; the upper surface of the heat conducting plate is fixedly connected with heat conducting boxes (22) which are uniformly arranged; the heat conduction box (22) extends into the water storage cavity (10) and is sealed with the water storage cavity (10); the inner space of the heat conduction box (22) is communicated with the primary combustion chamber (11) through a heat conduction groove (23) formed in the surface of the heat conduction plate (14); the heat conducting plate (14) and the heat conducting box (22) are both made of copper materials.

2. The municipal solid waste incineration power generation system according to claim 1, wherein an opening is formed in the left side of the housing (1) and communicated with the collection chamber (12), and a waste residue collection box (6) is slidably connected to the opening; the waste residue collecting box (6) is positioned in the collecting cavity (12).

3. A municipal domestic waste incineration power generation system according to claim 2, wherein the grid plate (15) comprises a frame (151) and evenly arranged rotating plates (152); the frame (151) is fixedly connected to the inner wall of the shell (1); the rotating plate (152) is rotatably connected to the inner wall of the frame (151) through a rotating shaft; the section of the rotating plate (152) is designed in a shuttle shape; the inner wall of the frame (151) is provided with a sliding groove (157); a rack (153) is connected in the sliding groove (157) in a sliding manner; the surface of one end, close to the rack (153), of the rotating shaft is fixedly sleeved with a gear (155) through a buffer ring (154), and the gear (155) is meshed with the rack (153); the lower end of the left side of the rack (153) is fixedly connected with a driving rod (156); the driving rod (156) is in a Z-shaped design, when the right end of the rack (153) is tightly attached to the side wall of the sliding groove (157), the rotating plates (152) are in a vertical state, when the left end of the rack (153) is tightly attached to the side wall of the sliding groove (157), the rotating plates (152) are in a horizontal state, and the rotating plates (152) in the horizontal state are arranged in a contact mode with each other; a spring is fixedly connected to the inner wall of the right side of the shell (1) at the position of the driving rod (156), the spring is in a compressed state, and one end of the spring is designed to be tightly attached to the surface of the driving rod (156); the lower end of the driving rod (156) extends to the right side of the waste residue collection box (6).

4. The municipal solid waste incineration power generation system according to claim 3, wherein a first magnet (24) is fixedly attached to the inside of the lower end of each of the rotating plates (152) in the vertical state; an adjusting groove (25) is formed in the bottom of the waste residue collecting box (6); an adjusting plate (26) is connected in the adjusting groove (25) in a sliding manner; second magnets (27) which are uniformly arranged are arranged in the adjusting plate (26); the first magnet (24) and the second magnet (27) are arranged in an opposite way; the cushion ring (154) is made of an elastic rubber material.

5. The municipal domestic waste incineration power generation system according to claim 1, wherein the inside of the feed hopper (4) is hinged with a baffle (20), and the middle position of the lower end of the baffle (20) is connected with the inner wall of the feed hopper (4) through a spring.

6. The municipal solid waste incineration power generation system according to claim 1, wherein a preliminary heating chamber (3) is wrapped outside a coil (19) communicating with the water storage chamber (10), the preliminary heating chamber (3) is communicated with the heat pipe (13) through a conduit, and an exhaust port is provided at an upper end of the preliminary heating chamber (3).