CN204648254U - Residents in rural community CIU - Google Patents

Abstract

The utility model discloses a rural domestic waste incineration system, which comprises a waste incinerator and a secondary combustion chamber. A storage bin is arranged at the upper end of the waste incinerator, a rotary distributor is arranged at the outlet of the storage bin, and a grate is arranged in the waste incinerator. , a feeding channel is set above the grate, a rotating shaft is set in the waste incinerator, the grate is fixedly installed on the rotating shaft, a first biogas input pipe is arranged in the rotating shaft, and a first air input channel is formed between the first biogas input pipe and the rotating shaft. The first igniter is set on the grate, and the power mechanism for driving the grate to rotate is set in the garbage incinerator. A second biogas input pipe and a second air input channel, a second igniter is arranged on the second biogas input pipe, and a flue gas discharge port is arranged on the secondary combustion chamber. The rural domestic waste incineration system has a simple structure, can fully burn the rural domestic waste, and has low manufacturing cost.

Description

Rural domestic waste incineration system

technical field

The utility model relates to a garbage incineration system, in particular to a rural household garbage incineration system.

Background technique

At present, domestic waste treatment technologies mainly include landfill, composting and incineration. The advantage of the incineration method for garbage disposal is that it can greatly reduce the volume and weight of the garbage, the processing speed is fast, and the storage period is short; at the same time, part of the heat can also be recovered, and clean disposal can be achieved through reasonable organization of combustion and flue gas treatment, contributing to the country's energy conservation and emission reduction. strength.

At present, the types of furnaces used for waste incineration in China generally include the following types:

Mechanical grate furnace: it is driven by the moving grate, so that the garbage is continuously sheared and turned, so that it passes through the dry ignition section and the embers section sequentially, and the unburned waste is continuously exposed to the flame to achieve complete combustion. The slag is discharged out of the furnace through the slag discharge tank.

Rotary kiln: The incineration system is derived from the design of a refractory brick-lined rotary kiln that has been widely used in the cement industry. Garbage is fed from the upper front end of the inclined and slowly rotating rotary kiln, and the forward speed of the garbage is controlled by the rotating speed, so that the process of drying, incineration and ash cooling is completed during the forward conveying process of the garbage in the kiln, and the ash after cooling It is discharged from the lower end of the kiln. The entire furnace body of the rotary kiln can be welded by cooling water pipes and perforated steel plates to form a barrel shape, or it can be composed of a steel drum with fireproof lining inside. The furnace body is inclined downward and is divided into three sections: dry combustion and post-combustion. End special wheel support. The special wheel is supported by four rollers, and the sprocket drive device rotates the wheel to rotate the furnace body. The garbage on the furnace body is well stirred and transported forward due to the rotation, and the preheated air passes through the perforated steel plate from the bottom. To the kiln, so that the garbage can be completely burned.

Fluidized bed furnace: Fluidized bed furnace combustion technology is a new type of clean combustion technology developed rapidly in the early 1960s. The basic feature of the incinerator using this technology is that a temperature-resistant air distribution plate is arranged at the lower part of the furnace, and the heat-carrying inert particles are installed on the plate, and the inert particles are boiled through the air distribution under the bed to form a fluidized bed section. Above the fluidized bed section, there is a high enough ember section (ie suspension section).

The above furnace types are complex in equipment, high in operating costs and high in unit investment, and are suitable for large-scale treatment, but not suitable for the treatment of rural domestic waste.

Utility model content

The purpose of the utility model is to overcome the shortcomings in the above-mentioned prior art and provide a system for incinerating rural domestic waste. The rural domestic waste incineration system has a simple structure and is convenient to use, can fully burn the rural domestic waste, has low manufacturing cost, and is convenient for popularization and application in rural areas.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a rural household garbage incineration system, which is characterized in that it includes a garbage incinerator and a secondary combustion chamber, and the upper end of the garbage incinerator is provided with a storage tank for storing garbage to be processed. A silo, the discharge port of the storage silo is provided with a rotary distributor, the garbage incinerator is provided with a fire grate, and above the fire grate is provided with a trap for transporting the garbage output by the rotary distributor to the fire grate. The conveying channel, the garbage incinerator is provided with a rotating shaft rotatably connected to the bottom wall, the grate is fixedly installed on the rotating shaft, the rotating shaft is tubular, and the rotating shaft is provided with a shaft leading to the grate. The first biogas input pipe, the first air input channel leading to the fire grate is formed between the first biogas input pipe and the rotating shaft, and the first igniter is arranged on the fire grate and near the outlet end of the first biogas input pipe, The garbage incinerator is equipped with a power mechanism for driving the grate to rotate. The furnace cavity of the garbage incinerator communicates with the furnace cavity of the secondary combustion chamber through the flue gas delivery pipe. The secondary combustion chamber is provided with a second Two biogas input pipes and a second air input channel, the second biogas input pipe is provided with a second igniter, and the secondary combustion chamber is provided with a flue gas discharge port.

The above-mentioned rural domestic waste incineration system is characterized in that it includes a wet dust collector, and the flue gas discharge port is connected with the wet dust collector through a flue gas discharge pipe.

The above-mentioned rural domestic waste incineration system is characterized in that: the bottom of the furnace cavity of the waste incinerator is provided with a residue area for containing and cooling the incineration residue, and the side wall of the waste incinerator is provided with a A slag outlet for slag discharge and a slag door for closing the slag outlet.

The above-mentioned rural domestic waste incineration system is characterized in that: the power mechanism includes a worm wheel fixedly installed on the rotating shaft, a worm arranged on one side of the worm wheel and meshed with the worm wheel, and used to drive the worm Turning motor.

The above-mentioned rural domestic waste incineration system is characterized in that: the side wall of the waste incinerator is provided with an observation window.

Compared with the prior art, the utility model has the following advantages:

1. The structure of the utility model is simple, and the design is novel and reasonable.

2. Since the utility model uses biogas as a combustion aid, it provides a large amount of energy for combustion, thereby increasing the temperature in the garbage incinerator while incinerating garbage, reducing the generation of toxic pollutants, and using biogas in the secondary combustion chamber As a combustion aid, the flue gas is secondary incinerated to further reduce the emission of toxic and harmful gases. Through the cooperation of the garbage incinerator and the secondary combustion chamber, the garbage can be completely burned.

3. The utility model is equipped with a wet dust collector, and the discharged flue gas passes through the wet dust collector to remove dust and cool down the flue gas, so that the flue gas reaches the emission standard.

4. The utility model has the advantages of low cost of realization, good use effect, and convenient popularization and use.

In summary, the utility model has the advantages of simple structure, novel and reasonable design, high working reliability, long service life, good garbage incineration effect, and is convenient for popularization and use.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Explanation of reference signs:

1—storage bin; 2—rotary distributor; 3—garbage incinerator;

4—feeding channel; 5—grate; 6—observation window;

7—residue area; 8—slag discharge door; 9—first igniter;

10—worm gear; 11—rotating shaft; 12—second bearing;

13—the first air input channel; 14—the first biogas input pipe; 15—the first bearing;

16—worm; 17—motor; 18—bracket;

19—flue gas delivery pipe; 20—secondary combustion chamber; 21—second biogas input pipe;

22—the second igniter; 23—the second air input channel; 24—the smoke exhaust port;

25—flue gas discharge pipe; 26—wet dust collector.

Detailed ways

A kind of rural household garbage incineration system as shown in Figure 1, comprises garbage incinerator 3 and is arranged on the secondary combustion chamber 20 of described garbage incinerator 3 side, and the upper end of described garbage incinerator 3 is provided with for storing A storage bin 1 for processing garbage, the discharge port of the storage bin 1 is provided with a rotary distributor 2, and a grate 5 is provided in the garbage incinerator 3, and a rotating grate 5 is provided above the grate 5. The garbage output by the distributor 2 is conveyed to the feeding channel 4 of the fire grate 5. The waste incinerator 3 is provided with a rotating shaft 11 rotatably connected to its bottom wall, and the fire grate 5 is fixedly installed on the rotating shaft 11. The rotating shaft 11 is tubular, and the rotating shaft 11 is provided with a first biogas input pipe 14 leading to the fire grate 5, and the first air leading to the fire grate 5 is formed between the first biogas input pipe 14 and the rotating shaft 11. The input channel 13, the first igniter 9 is arranged on the grate 5 and near the outlet end of the first biogas input pipe 14, the power mechanism for driving the grate 5 to rotate is arranged in the garbage incinerator 3, and the garbage The furnace cavity of the incinerator 3 communicates with the furnace cavity of the secondary combustion chamber 20 through the flue gas delivery pipe 19, and the secondary combustion chamber 20 is provided with a second biogas input pipe 21 and a second air input channel 23. The second biogas input pipe 21 is provided with a second igniter 22 , and the secondary combustion chamber 20 is provided with a flue gas discharge port 24 .

As shown in Figure 1, the bottom of the furnace cavity of the garbage incinerator 3 is provided with a residue area 7 for containing and cooling the incineration residue, and the side wall of the garbage incinerator 3 is provided with a residue area for discharging the residue in the residue area 7. The slag outlet and the slag door 8 for closing the slag outlet.

In this embodiment, when the rural domestic garbage incineration system is in use, the garbage in the storage bin 1 is evenly distributed by the rotary distributor 2 and then enters the conveying channel 4. The conveying channel 4 is provided with openings, and the garbage incinerated The high-temperature gas in the furnace 3 dries and pyrolyzes the garbage in the delivery channel 4, the moisture in the garbage volatilizes, and then the organic matter in the garbage decomposes into combustibles such as carbon monoxide and gaseous hydrocarbons, and then the garbage in the delivery channel 4 Transported to the grate 5 from top to bottom, that is, the pyrolysis and gasification residues (liquid tar, relatively pure carbon, inorganic ash and inert substances contained in the garbage itself, etc.) sink into the grate 5 for full combustion, that is, through The first igniter 9 ignites the biogas output by the first biogas input pipe 14, thereby incinerating the garbage on the fire grate 5 at high temperature. Since the fire grate 5 can rotate, the garbage can be mechanically crushed to achieve the purpose of full combustion. It can be as high as above 850°C, and part of its heat is used to provide the energy required for pyrolysis and drying. The residues from complete combustion enter the residue zone 7 . The flue gas produced after combustion is transported to the furnace cavity of the secondary combustion chamber 20 through the flue gas conveying pipe 19 through the furnace cavity of the garbage incinerator 3 , and the biogas is ignited by the second igniter 22 to carry out secondary combustion of the flue gas.

In this embodiment, due to the use of biogas as a combustion aid, a large amount of energy is provided for combustion, and then the temperature in the garbage incinerator 3 is increased while the garbage is incinerated, reducing the generation of toxic pollutants, and in the secondary combustion chamber 20 The internal biogas is used as a combustion aid to carry out secondary incineration of the flue gas, further reducing the emission of toxic and harmful gases, and through the cooperation of the garbage incinerator 3 and the secondary combustion chamber 20, the garbage can be completely burned.

As shown in FIG. 1 , the rural domestic waste incineration system also includes a wet dust collector 26 , and the smoke discharge port 24 is connected to the wet dust collector 26 through a smoke discharge pipe 25 .

In this embodiment, by setting the wet dust collector 26, the exhausted flue gas passes through the wet dust collector 26 to remove dust and cool down the flue gas, so that the flue gas reaches the emission standard.

As shown in Figure 1, the power mechanism includes a worm wheel 10 fixedly installed on the rotating shaft 11, a worm 16 arranged on one side of the worm wheel 10 and meshed with the worm wheel 10, and a worm wheel 16 for driving the worm wheel 16. Rotating motor 17. The fire grate 5 is driven to rotate by the worm gear mechanism, which is very convenient to implement.

In this embodiment, in order to better support the rotating shaft 11, a bracket 18 is fixedly installed in the garbage incinerator 3, and the first bearing 15 sleeved on the rotating shaft 11 is arranged on the bracket 18. The bottom wall is provided with a second bearing 12 through which the rotating shaft 11 passes.

As shown in Fig. 1, the side wall of the garbage incinerator 3 is provided with an observation window 6, so that it is convenient for the operator to observe in real time.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural transformations made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (5)

1. Rural domestic waste incineration system, characterized in that: comprising a refuse incinerator (3) and a secondary combustion chamber (20), the upper end of the refuse incinerator (3) is provided with a storage bin ( 1), the discharge port of the storage bin (1) is provided with a rotary distributor (2), and a fire grate (5) is provided in the waste incinerator (3), and above the fire grate (5) A feed channel (4) for transporting the garbage output by the rotary distributor (2) to the grate (5) is provided, and a rotating shaft (11) rotatably connected to the bottom wall of the garbage incinerator (3) is provided inside, The fire grate (5) is fixedly mounted on the rotating shaft (11), the rotating shaft (11) is tubular, and the first biogas input pipe for leading to the fire grate (5) is arranged inside the rotating shaft (11) (14), the first air input channel (13) leading to the fire grate (5) is formed between the first biogas input pipe (14) and the rotating shaft (11), and the fire grate (5) is on and close to the second The outlet end of a biogas input pipe (14) is provided with a first igniter (9), and a power mechanism for driving the grate (5) to rotate is provided in the garbage incinerator (3), and the garbage incinerator (3) The furnace cavity of the furnace communicates with the furnace cavity of the secondary combustion chamber (20) through the flue gas delivery pipe (19), and the secondary combustion chamber (20) is provided with a second biogas input pipe (21) and a second air input channel (23), the second biogas input pipe (21) is provided with a second igniter (22), and the secondary combustion chamber (20) is provided with a flue gas discharge port (24). 2. The rural domestic waste incineration system according to claim 1, characterized in that: it comprises a wet dust collector (26), and the flue gas discharge port (24) connects with the wet dust collector (26) through the flue gas discharge pipe (25) ) are connected. 3. The rural domestic waste incineration system according to claim 1, characterized in that: the bottom of the furnace cavity of the waste incinerator (3) is provided with a residue area (7) for containing and cooling incineration residues, and the waste incineration The side wall of the furnace (3) is provided with a slag discharge port for discharging the residue in the residue zone (7) and a slag discharge door (8) for closing the slag discharge port. 4. The rural domestic waste incineration system according to claim 1, characterized in that: the power mechanism includes a worm wheel (10) fixedly installed on the rotating shaft (11), and is arranged on one side of the worm wheel (10). And a worm (16) meshing with the worm wheel (10) and a motor (17) for driving the worm (16) to rotate. 5. The rural domestic waste incineration system according to claim 1, characterized in that: the side wall of the waste incinerator (3) is provided with an observation window (6).