CN211600704U

CN211600704U - System for generating electricity comprehensively by mixed combustion of household garbage and coal

Info

Publication number: CN211600704U
Application number: CN202020200683.6U
Authority: CN
Inventors: 骆毅力; 骆的; 王建丽; 叶贵琴; 王珏
Original assignee: Heinuoer Yibin Environmental Protection Power Co ltd
Current assignee: Heinuoer Yibin Environmental Protection Power Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-09-29
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses a system for comprehensive power generation by mixed combustion of household garbage and coal, the top of a hearth (5) is provided with a coal adding device and a combustor B (16), the coal adding device comprises a through hole (17) arranged at the top of the hearth (5), a barrel (18) is welded in the through hole (17), a partition plate (19) is welded in the barrel (18), the top of the barrel (18) is fixedly provided with a motor A (21), the extending end is connected with a stirring shaft (22) through a coupler, and the stirring shaft (22) is provided with a blade (23); a roller (25) is rotatably arranged in the hearth (5) through a rotating shaft, the roller (25) is arranged between the left end part of the second fire grate (8) and the right end part of the first fire grate (7), and a plurality of material turning plates (26) which are longitudinally arranged are welded on the roller (25) along the circumferential direction of the roller. The utility model has the advantages that: compact structure, thoroughly burn domestic waste, greatly improve the generated energy.

Description

System for generating electricity comprehensively by mixed combustion of household garbage and coal

Technical Field

The utility model relates to a waste incineration's technical field, especially a system that electricity generation was synthesized in domestic waste and coal co-combustion.

Background

At present, with the rapid development of economic society, the living of residents is steadily improved, the yield of household garbage (especially urban household garbage) is sharply increased, a simple garbage landfill mode cannot meet the garbage treatment requirement, and the garbage incineration power generation is rapidly developed by the advantages of harmlessness, reduction and recycling, so most of garbage treatment plants at present adopt garbage incinerators to incinerate garbage, and the heat generated after incineration is used for power generation, namely the heat is converted into electric energy, so that waste is changed into valuable. Although the existing garbage incinerator can complete incineration of household garbage, when the household garbage is transported on a grate in a furnace body, the household garbage is always in a stacking state, lower-layer garbage and middle-layer garbage are not incinerated, so that the garbage incineration is incomplete, heat is not completely released, and the generated energy is reduced. Therefore, a power generation system capable of thoroughly incinerating domestic garbage is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a compact structure, thoroughly burn domestic waste, greatly improve the domestic waste and the coal co-combustion comprehensive power generation's of generated energy system.

The purpose of the utility model is realized through the following technical scheme: a system for comprehensively generating power by mixing and burning household garbage and coal comprises a garbage incinerator, a turbo generator unit, a bag-type dust remover and a boiler, wherein the garbage incinerator comprises a furnace body, a hearth arranged in the furnace body, a smoke outlet arranged at the top of the hearth, and a first grate and a second grate which are arranged in the hearth, the bottoms of the first grate and the second grate are respectively provided with a first air inlet bin and a second air inlet bin, the two air inlet bins are communicated with the hearth, the bottom of the first air inlet bin is connected with a first induced draft fan, the bottom of the second air inlet bin is connected with a second induced draft fan, a slag discharge port positioned on the right side of the second grate is further arranged in the hearth, the hearth is provided with a feed port, the feed port is positioned above the first grate, the outer wall of the hearth is provided with a combustor A, a flame jet orifice of the combustor A is arranged towards the second grate, and the smoke outlet, the outlet end of the bag-type dust collector is connected with the flue gas inlet end of the boiler through a pipeline, the steam outlet end of the boiler is connected with the steam inlet end of the turbo generator unit through a pipeline, the top of the hearth is provided with a coal adding device and a burner B, the coal adding device comprises a through hole arranged at the top of the hearth, the through hole is positioned at the right side of the feed inlet, the through hole is positioned right above the first grate, a barrel is welded in the through hole, the bottom of the barrel is open, the top of the barrel is closed, a partition plate is welded in the barrel, a plurality of cloth holes are formed in the partition plate, a motor A is fixedly arranged at the top of the barrel, an output shaft of the motor A extends into the barrel, a stirring shaft is connected to the extending end through a coupler, blades are arranged on the stirring shaft and positioned above the partition plate, the top of the barrel is also, the flame injection ports of the burners B are arranged towards the first fire grate; the furnace is internally and rotatably provided with a roller through a rotating shaft, the roller is longitudinally arranged and is arranged between the left end part of the second fire grate and the right end part of the first fire grate, and a plurality of material turning plates which are longitudinally arranged are welded on the roller along the circumferential direction of the roller.

A rotating shaft of the roller extends to the outside of the hearth, and the extending end of the roller is connected with a transmission device.

The transmission device comprises a driving gear, a driven gear and a motor B, the driven gear is arranged on the rotating shaft, the driving gear is arranged on an output shaft of the motor B, and the driving gear is meshed with the driven gear.

The smoke exhaust port is positioned right above the second grate.

The material turning plates are uniformly distributed on the roller.

And the bottoms of the boiler and the boiler body are provided with supporting legs supported on the ground.

The utility model has the advantages of it is following: the utility model discloses pivoted material turning plate overturns domestic waste, makes the fire coal of lighting turn over domestic waste, and the lower floor does not burn domestic waste by turning over the upper strata, and the fire coal of consequently lighting burns domestic waste inside domestic waste, and combustor A burns the domestic waste who does not burn to it is thoroughly burnt to have ensured domestic waste.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion I of FIG. 1;

3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3

In the figure, 1-turbo generator set, 2-bag dust collector, 3-boiler, 4-furnace body, 5-hearth, 6-smoke outlet, 7-first grate, 8-second grate, 9-first air inlet bin, 10-second air inlet bin, 11-first induced draft fan, 12-second induced draft fan, 13-slag outlet, 14-feed inlet, 15-burner A, 16-burner B, 17-through hole, 18-cylinder, 19-partition plate, 20-cloth hole, 21-motor A, 22-stirring shaft, 23-blade, 24-feed pipe, 25-roller, 26-material turning plate, 27-driving gear, 28-driven gear, 29-motor B and 30-domestic garbage.

Detailed Description

The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:

as shown in figure 1, the system for comprehensive power generation by mixed combustion of household garbage and coal comprises a garbage incinerator, a turbo generator set 1, a bag-type dust collector 2 and a boiler 3, wherein the garbage incinerator comprises a furnace body 4, a hearth 5 arranged in the furnace body 4, a smoke outlet 6 arranged at the top of the hearth 5, a first grate 7 and a second grate 8 arranged in the hearth 5, the smoke outlet 6 is positioned right above the second grate 8, the bottoms of the first grate 7 and the second grate 8 are respectively provided with a first air inlet bin 9 and a second air inlet bin 10, the two air inlet bins are both communicated with the hearth 5, the bottom of the first air inlet bin 9 is connected with a first induced draft fan 11, the bottom of the second air inlet bin 10 is connected with a second induced draft fan 12, a slag outlet 13 positioned at the right side of the second grate 8 is also arranged in the hearth 5, a feeding port 14 is arranged on the hearth 5, the feeding port 14 is positioned above the first grate 7, be provided with combustor A15 on the outer wall of furnace 5, the flame jet of combustor A15 sets up towards second grate 8, exhaust port 6 is connected with the entry end of sack cleaner 2 through the pipeline, and the exit end of sack cleaner 2 is connected with the flue gas entry end of boiler 3 through the pipeline, the steam outlet end of boiler 3 is connected with the steam inlet end of turbo generator set 1 through the pipeline.

As shown in fig. 1 to 3, a fire coal adding device and a burner B16 are arranged at the top of the furnace 5, the fire coal adding device includes a through hole 17 arranged at the top of the furnace 5, the through hole 17 is positioned at the right side of the feed inlet 14, the through hole 17 is positioned right above the first grate 7, a cylinder 18 is welded in the through hole 17, the bottom of the cylinder 18 is open, the top of the cylinder 18 is closed, a partition plate 19 is welded in the cylinder 18, a plurality of material distribution holes 20 are arranged on the partition plate 19, a motor a21 is fixedly arranged at the top of the cylinder 18, an output shaft of the motor a21 extends into the cylinder 18, the extending end is connected with a stirring shaft 22 through a coupler, the stirring shaft 22 is provided with a blade 23, the blade 23 is positioned above the partition plate 19, the top of the cylinder 18 is also provided with a feeding pipe 24 extending into the cylinder 18, the burner B16 is arranged at the right side of the barrel 18, and the flame injection port of the burner B16 is arranged towards the first fire grate 7; the furnace 5 is internally and rotatably provided with a roller 25 through a rotating shaft, the roller 25 is longitudinally arranged, the roller 25 is arranged between the left end part of the second fire grate 8 and the right end part of the first fire grate 7, the roller 25 is welded with a plurality of material turning plates 26 which are longitudinally arranged along the circumferential direction of the roller 25, and the material turning plates 26 are uniformly distributed on the roller 25.

A pivot of roller 25 extends in furnace 5 outside, and extends to serve and be connected with transmission, transmission includes driving gear 27, driven gear 28 and motor B29, driven gear 28 installs in the pivot, and driving gear 27 installs on motor B29's output shaft, and driving gear 27 and driven gear 28 mesh. And the bottoms of the boiler 3 and the furnace body 4 are both provided with support legs supported on the ground.

The working process of the utility model is as follows:

s1, dumping the household garbage 30 into the feeding hole 14 by workers, and conveying the household garbage 30 falling on the first grate 7 to the right by the first grate;

s2, a worker opens a first induced draft fan 11, a second induced draft fan 12, a burner A15 and a motor B29, wherein the first induced draft fan 11 and the second induced draft fan 12 respectively blow air into a first air inlet bin 9 and a second air inlet bin 10, the air enters a hearth 5 to play a combustion supporting role, the motor B29 drives a driving gear 27 to rotate, the driving gear 27 drives a driven gear 28 to rotate, the driven gear 28 drives a rotating shaft to rotate, the rotating shaft drives a roller 25 to rotate clockwise, and the roller 25 drives a material turning plate 26 to rotate; a worker opens the motor A21 and the burner B16, the motor A21 drives the stirring shaft 22 to rotate, the stirring shaft 22 drives the blades 23 to rotate, the worker puts granular fire coal into the top port of the feeding pipe 24, the fire coal enters the barrel 18 through the feeding pipe 24 and falls onto the partition plate 19, the blades 23 expel the fire coal out of the distribution hole 20, the expelled fire coal enters the hearth 5 and falls onto the surface of the upper layer household garbage 30, the fire coal is ignited by the flame sprayed out of the burner B16 along with the continuous rightward conveying of the household garbage 30, and meanwhile the upper layer household garbage is burnt by the flame;

s3, the first grate 7 continues to convey the household garbage to the right, when the household garbage 30 falls on the rotary roller 25, the rotary material turning plate 26 distributes the household garbage 30 on the second grate 8, the second grate 8 drives the household garbage to move towards the slag discharge port 13, flame sprayed by the burner A15 in the conveying process burns the household garbage on the second grate 8, and slag obtained after burning is discharged through the slag discharge port 13; the rotary material turning plate 26 turns the domestic garbage, so that the ignited coal is turned to the domestic garbage, and the domestic garbage which is not burnt at the lower layer in the step S2 is turned to the upper layer, so that the ignited coal burns the domestic garbage in the domestic garbage, and the burner A15 burns the non-burnt domestic garbage, so that the domestic garbage is completely burnt, further, all heat is released, and the power generation amount of the steam turbine generator unit 1 is improved;

s4, discharging hot flue gas generated by incineration in the steps S2 and S3 from the smoke outlet 6 and entering the bag-type dust collector 2, removing fly ash in the flue gas by the bag-type dust collector 2, enabling the hot flue gas with the fly ash removed to enter the boiler 3, enabling the hot flue gas to perform heat exchange with water in the boiler 3, enabling the water to be heated by the hot flue gas to form high-temperature steam, enabling the high-temperature steam to enter the turbo generator unit 1 through a steam outlet end of the boiler 3, and enabling the turbo generator unit 1 to perform power generation by using the high-temperature steam, so that the heat energy is converted into electric energy.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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

1. A system for comprehensive power generation by mixed combustion of household garbage and coal comprises a garbage incinerator, a turbo generator unit (1), a bag-type dust collector (2) and a boiler (3), wherein the garbage incinerator comprises a furnace body (4), a hearth (5) arranged in the furnace body (4), a smoke outlet (6) arranged at the top of the hearth (5), a first grate (7) and a second grate (8) arranged in the hearth (5), the bottoms of the first grate (7) and the second grate (8) are respectively provided with a first air inlet bin (9) and a second air inlet bin (10), the two air inlet bins are communicated with the hearth (5), the bottom of the first air inlet bin (9) is connected with a first induced draft fan (11), the bottom of the second air inlet bin (10) is connected with a second induced draft fan (12), a slag outlet (13) positioned on the right side of the second grate (8) is further arranged in the hearth (5), be provided with feed inlet (14) on furnace (5), feed inlet (14) are located first grate (7) top, are provided with combustor A (15) on the outer wall of furnace (5), and the flame jet of combustor A (15) sets up towards second grate (8), exhaust port (6) are connected through the entry end of pipeline with sack cleaner (2), and the exit end of sack cleaner (2) is connected through the pipeline with the flue gas entry end of boiler (3), the steam outlet end of boiler (3) is connected through the pipeline with the steam inlet end of turbo generator set (1), its characterized in that: the top of the hearth (5) is provided with a fire coal adding device and a burner B (16), the fire coal adding device comprises a through hole (17) arranged at the top of the hearth (5), the through hole (17) is positioned at the right side of the feeding hole (14), the through hole (17) is positioned right above the first fire grate (7), a barrel (18) is welded in the through hole (17), the bottom of the barrel (18) is open, the top of the barrel (18) is closed, a partition plate (19) is welded in the barrel (18), a plurality of material distribution holes (20) are formed in the partition plate (19), the top of the barrel (18) is fixedly provided with a motor A (21), an output shaft of the motor A (21) extends into the barrel (18), the extending end is connected with a stirring shaft (22) through a coupler, the stirring shaft (22) is provided with a blade (23), the blade (23) is positioned above the partition plate (19), the top of the barrel (18) is also provided with a feeding pipe (24) extending, the burner B (16) is arranged on the right side of the cylinder (18), and a flame jet orifice of the burner B (16) is arranged towards the first grate (7); the furnace is characterized in that a roller (25) is rotatably installed in the furnace (5) through a rotating shaft, the roller (25) is longitudinally arranged, the roller (25) is arranged between the left end of the second fire grate (8) and the right end of the first fire grate (7), and a plurality of material turning plates (26) which are longitudinally arranged are welded on the roller (25) along the circumferential direction of the roller.

2. The system for comprehensive power generation by mixed combustion of household garbage and coal as claimed in claim 1, wherein: a rotating shaft of the roller (25) extends out of the hearth (5), and the extending end is connected with a transmission device.

3. The system for generating electricity by mixing and burning domestic garbage and coal according to claim 2, wherein: the transmission device comprises a driving gear (27), a driven gear (28) and a motor B (29), the driven gear (28) is installed on the rotating shaft, the driving gear (27) is installed on an output shaft of the motor B (29), and the driving gear (27) is meshed with the driven gear (28).

4. The system for comprehensive power generation by mixed combustion of household garbage and coal as claimed in claim 1, wherein: the smoke exhaust port (6) is positioned right above the second grate (8).

5. The system for comprehensive power generation by mixed combustion of household garbage and coal as claimed in claim 1, wherein: the material turning plates (26) are uniformly distributed on the rollers (25).

6. The system for comprehensive power generation by mixed combustion of household garbage and coal as claimed in claim 1, wherein: and the bottoms of the boiler (3) and the furnace body (4) are provided with supporting legs supported on the ground.