Low-nitrogen combustion garbage incinerator

Abstract

The utility model discloses a low-nitrogen combustion garbage incinerator, and relates to the technical field of incinerators. The incinerator comprises an incinerator body, a heating bin is formed in the incinerator body, an incineration bin is formed in the incinerator body, a feeding port communicating with the heating bin is formed in one side of the incineration bin, a feeding port is formed in the top of the heating bin, and an igniter is fixedly connected to the inner top of the feeding port; and a plurality of inclined guide plates are symmetrically and fixedly connected to the inner side of the incineration bin. Garbage guided into the incineration bin through the feeding port is dried through the drying mechanism, so that water residues in the garbage are reduced, meanwhile, the multiple inclined guide plates arranged in a staggered mode are matched with the air supply assembly to enhance the fire behavior of garbage incineration, the thoroughness of garbage incineration is improved, and the garbage incineration efficiency is improved. Nitrogen oxide in the flue gas is subjected to a catalytic reaction through the catalytic assembly, harmless nitrogen and water vapor are generated, and then the flue gas generated through incineration is exhausted out of the incinerator body through the exhaust port.

Description

Technical Field

[0001] The present application relates to the technical field of incinerators, and in particular to a low-nitrogen combustion garbage incinerator. Background Art

[0002] With the acceleration of urbanization, the amount of domestic waste is increasing, which puts higher requirements on waste disposal. Although traditional waste disposal methods such as landfill and incineration can solve the waste disposal problem to a certain extent, they also bring environmental pollution, especially the problem of nitrogen oxide emissions. As an atmospheric pollutant, nitrogen oxides not only cause environmental problems such as acid rain and photochemical smog, but also have adverse effects on human health. Therefore, how to reduce the generation of nitrogen oxides during waste incineration has become an important issue that needs to be solved in the current environmental protection field.

[0003] As an important facility for modern urban waste treatment, the waste incinerator undertakes the important mission of converting domestic waste into useful resources such as heat and electricity. It can not only effectively reduce the volume of waste and reduce the occupation of land resources, but also control pollutants during the treatment process, especially the reduction of harmful gases such as nitrogen oxides, and contribute to the improvement of urban environment and sustainable development.

[0004] However, during the waste incineration process, due to unstable combustion conditions and incomplete combustion, pollutants such as nitrogen oxides are often generated, thereby reducing the environmental protection effect. Utility Model Content

[0005] The purpose of this application is to solve the problem that pollutants such as nitrogen oxides are often generated due to unstable combustion conditions and incomplete combustion, thereby reducing the environmental protection effect. This application provides a low-nitrogen combustion waste incinerator.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A waste incinerator with low - nitrogen combustion, comprising an incinerator body. An internal heating chamber is provided inside the incinerator body, and an incineration chamber is also provided inside the incinerator body. A feeding port communicating with the heating chamber is provided on one side of the incineration chamber. An inlet port is provided at the top of the heating chamber. An igniter is fixedly connected to the inner top of the feeding port. A plurality of inclined guiding plates are symmetrically and fixedly connected to the inner side of the incineration chamber, and adjacent two inclined guiding plates are arranged staggeredly. A waste bin is provided at the bottom of the incineration chamber. A ventilation port communicating with the heating chamber is provided on one side of the incineration chamber. An exhaust port is provided on one side of the heating chamber, and an exhaust fan is fixedly connected inside the exhaust port. A drying mechanism is installed inside the heating chamber. A air - supply component is installed at one end of the incineration chamber, and a catalytic component is installed at the inner bottom of the heating chamber.

[0008] By adopting the above - mentioned technical solution, through the coordinated use of the drying mechanism, the air - supply component and the catalytic component, it is convenient to use the drying mechanism to dry the waste introduced into the incineration chamber through the inlet port, thereby reducing the moisture residue in the waste. At the same time, the staggered arrangement of multiple inclined guiding plates and the air - supply component are used to strengthen the fire of waste incineration, improve the thoroughness of waste incineration. Then, the catalytic component is used to catalyze the nitrogen oxides in the flue gas to generate harmless nitrogen and water vapor. Then, the flue gas generated by incineration is discharged from the inside of the incinerator body through the exhaust port, thereby effectively reducing the moisture residue in the waste, improving the stability of waste incineration, making the waste incineration more thorough, thus reducing the production of nitrogen oxides and protecting the environment.

[0009] Further, the drying mechanism includes a gas - guiding plate fixedly connected inside the heating chamber. An arc - shaped heat - conducting plate is fixedly connected inside the heating chamber, and the arc - shaped heat - conducting plate is installed above the gas - guiding plate. A guiding plate adapted to the arc - shaped heat - conducting plate is fixedly connected inside the feeding port. A feeding component is installed inside the heating chamber.

[0010] By adopting the above - mentioned technical solution, through the coordinated use of the feeding component and the gas - guiding plate, when the exhaust fan is started, it is convenient to guide the high - temperature flue gas to form heat exchange with the arc - shaped heat - conducting plate along the guiding direction of the gas - guiding plate, thereby using the arc - shaped heat - conducting plate to dry the waste introduced into the heating chamber, and further effectively reducing the moisture residue in the waste and improving the practicability of the device.

[0011] Further, the feeding component includes a feeding plate rotatably connected inside the heating chamber. One end of the feeding plate is in contact with the inner wall of the arc - shaped heat - conducting plate. A feeding motor is fixedly connected to one end of the incinerator body, and the output end of the feeding motor is fixedly connected to the feeding plate.

[0012] By adopting the above technical solution, through the combined use of the blanking motor and the blanking plate, it is convenient to drive the blanking plate to rotate by starting the blanking motor, and the blanking plate is made to push the garbage inside the arc-shaped heat conducting plate towards the top of the guiding plate, thereby facilitating the pushing of the garbage inside the arc-shaped heat conducting plate into the incineration chamber.

[0013] Furthermore, the air supply assembly includes an air delivery pipe fixedly connected to one end of the incineration chamber. The air inlet of the air delivery pipe is fixedly connected with an air delivery fan, and one end of the air delivery pipe is evenly provided with a plurality of air distribution branch pipes communicating with the inside of the incineration chamber.

[0014] By adopting the above technical solution, through the combined use of the air delivery fan and the air distribution branch pipes, it is convenient to start the air delivery fan to pump air along the inside of the air delivery pipe and evenly input it into the incineration chamber through the plurality of air distribution branch pipes, thereby increasing the oxygen content inside the incineration chamber and making the garbage incineration inside the incineration chamber more complete.

[0015] Furthermore, a plurality of dust-proof covers are fixedly connected inside the incineration chamber, and the air distribution branch pipes are installed inside the dust-proof covers.

[0016] By adopting the above technical solution, through the combined use of the dust-proof covers and the air distribution branch pipes, the situation that the dust generated by incineration inside the incineration chamber enters the inside of the air delivery pipe through the air distribution branch pipes is effectively reduced.

[0017] Furthermore, the catalytic assembly includes a plurality of catalyst substrates symmetrically fixedly connected between the heating chamber and the air guiding plate, and an ammonia spray head is fixedly connected to the inner bottom of the heating chamber.

[0018] By adopting the above technical solution, through the combined use of the ammonia spray head and the catalyst substrates, it is convenient to input ammonia into the heating chamber through the ammonia spray head to mix with the flue gas. At the same time, in cooperation with the catalyst substrates, the nitrogen oxides in the flue gas react with ammonia to generate harmless nitrogen and water, and are discharged from the inside of the incinerator body through the exhaust port, thereby effectively reducing the external discharge of nitrogen oxides in the flue gas and protecting the environment.

[0019] Furthermore, two adjacent catalyst substrates are arranged staggeredly and form an S-shaped air duct.

[0020] By adopting the above technical solution, by setting the S-shaped air duct, the contact area between the flue gas and the catalyst substrates is effectively increased, and the catalytic efficiency of the catalyst substrates is improved.

[0021] Furthermore, a filter screen is fixedly connected inside the ventilation port.

[0022] By adopting the above technical solution, a filter screen is provided to facilitate the filtration and interception of the flue gas introduced from the incineration chamber into the heating chamber, effectively reducing the situation where the dust generated by garbage incineration is discharged from the exhaust port inside the incinerator body.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. By setting up the cooperation of the drying mechanism, the air supply component, and the catalytic component, it is convenient to use the drying mechanism to dry the garbage introduced into the incineration chamber through the feeding port, thereby reducing the moisture residue in the garbage. At the same time, the staggered arrangement of multiple inclined guide plates is used in conjunction with the air supply component to strengthen the fire of garbage incineration, improve the thoroughness of garbage incineration. Then, the catalytic component is used to catalyze the nitrogen oxides in the flue gas to generate harmless nitrogen and water vapor, and then the flue gas generated by incineration is discharged from the inside of the incinerator body through the exhaust port. In this way, the moisture residue in the garbage is effectively reduced, the stability of garbage incineration is improved, the garbage incineration is made more thorough, thereby reducing the production of nitrogen oxides and protecting the environment.

[0025] 2. By setting up the cooperation of the feeding component and the air guiding plate, when the exhaust fan is started, it is convenient to guide the high-temperature flue gas to form heat exchange with the arc-shaped heat conducting plate along the guiding direction of the air guiding plate, thereby using the arc-shaped heat conducting plate to dry the garbage introduced into the heating chamber, and then effectively reducing the moisture residue in the garbage and improving the practicability of the device. Description of the Drawings

[0026] Figure 1 is a three-dimensional structural schematic diagram of the device main body in the present application.

[0027] Figure 2 is a front sectional view of the device main body in the present application.

[0028] Figure 3 is an internal structural schematic diagram of the gas transmission pipe in the present application.

[0029] Description of the Reference Numerals:

[0030] 1. Incinerator body; 2. Heating chamber; 3. Incineration chamber; 4. Feeding port; 5. Feeding inlet; 6. Igniter; 7. Inclined guide plate; 8. Waste bin; 9. Ventilation port; 10. Exhaust port; 11. Exhaust fan; 12. Air guiding plate; 13. Arc-shaped heat conducting plate; 14. Guide plate; 15. Feeding plate; 16. Feeding motor; 17. Gas transmission pipe; 18. Gas transmission fan; 19. Gas distribution branch pipe; 20. Dust-proof cover; 21. Catalyst substrate; 22. Ammonia spray head; 23. Filter screen. Detailed Description of the Embodiment

[0031] The following is a further detailed description of the present application in combination with the attached Figures 1-3 drawings.

[0032] An embodiment of the present application discloses a waste incinerator with low-nitrogen combustion.

[0033] Referring to Figure 1 and Figure 2 , a waste incinerator with low-nitrogen combustion includes an incinerator body 1. A heating chamber 2 is provided inside the incinerator body 1, and an incineration chamber 3 is provided inside the incinerator body 1. A feeding port 4 communicating with the heating chamber 2 is provided on one side of the incineration chamber 3. An inlet port 5 is provided at the top of the heating chamber 2. An igniter 6 is fixedly connected to the inner top of the feeding port 4. A plurality of inclined guide plates 7 are symmetrically and fixedly connected to the inner side of the incineration chamber 3, and two adjacent inclined guide plates 7 are arranged in a staggered manner. A waste bin 8 is provided at the bottom of the incineration chamber 3. An air vent 9 communicating with the heating chamber 2 is provided on one side of the incineration chamber 3. An exhaust port 10 is provided on one side of the heating chamber 2. An exhaust fan 11 is fixedly connected inside the exhaust port 10. A drying mechanism is installed inside the heating chamber 2. A air supply component is installed at one end of the incineration chamber 3. A catalytic component is installed at the inner bottom of the heating chamber 2;

[0034] Among them, the drying mechanism includes a gas guide plate 12 fixedly connected inside the heating chamber 2. An arc-shaped heat conducting plate 13 is fixedly connected inside the heating chamber 2. The arc-shaped heat conducting plate 13 is installed above the gas guide plate 12. A guiding plate 14 adapted to the arc-shaped heat conducting plate 13 is fixedly connected inside the feeding port 4. A feeding component is installed inside the heating chamber 2;

[0035] Moreover, the feeding component includes a feeding plate 15 rotatably connected inside the heating chamber 2. One end of the feeding plate 15 is in contact with the inner wall of the arc-shaped heat conducting plate 13. A feeding motor 16 is fixedly connected to one end of the incinerator body 1. The output end of the feeding motor 16 is fixedly connected to the feeding plate 15.

[0036] During use, first pour the garbage into the interior of the heating chamber 2 through the feeding port 5, and let the arc-shaped heat conducting plate 13 receive the garbage poured into the interior of the heating chamber 2. Then, start the feeding motor 16 to drive the feeding plate 15 to rotate, and make the feeding plate 15 push the garbage inside the arc-shaped heat conducting plate 13 through the feeding port 4, and at the same time slide along the top of the guiding plate 14 into the interior of the incineration chamber 3. Then, start the igniter 6 to ignite the garbage passing through the feeding port 4 to make the garbage burn. At the same time, cooperate with the air supply component to enhance the fire of the garbage incineration. Then, under the action of gravity, make the incinerated garbage slide along the top slopes of a plurality of inclined guiding plates 7 arranged in a staggered manner, so that the remaining materials of the incinerated garbage slide into the interior of the waste bin 8 for collection. At the same time, start the exhaust fan 11 to pump the flue gas generated by the garbage incineration in the incineration chamber 3 through the ventilation port 9 into the interior of the heating chamber 2, and flow along the guiding direction of the air guiding plate 12 to the bottom of the arc-shaped heat conducting plate 13, so that the high-temperature flue gas exchanges heat with the surface of the arc-shaped heat conducting plate 13, and exchanges heat and dries the garbage received at the top of the arc-shaped heat conducting plate 13. At the same time, cooperate with the catalytic component to carry out a catalytic reaction on the nitrogen oxides in the flue gas to generate harmless nitrogen and water vapor, and then discharge the flue gas generated by the incineration through the exhaust port 10 from the interior of the incinerator body 1, thereby effectively reducing the residue of moisture in the garbage, improving the stability of the garbage incineration, making the garbage incineration more complete, thus reducing the production of nitrogen oxides and protecting the environment.

[0037] Refer to Figures 1-3 , the air supply component includes an air delivery pipe 17 fixedly connected to one end of the incineration chamber 3. An air delivery fan 18 is fixedly connected to the air inlet of the air delivery pipe 17, and a plurality of branch air pipes 19 communicating with the interior of the incineration chamber 3 are uniformly arranged at one end of the air delivery pipe 17;

[0038] Among them, a plurality of dust-proof covers 20 are fixedly connected to the interior of the incineration chamber 3, and the branch air pipes 19 are installed inside the dust-proof covers 20.

[0039] During use, first start the air delivery fan 18 to draw air into the interior of the air delivery pipe 17, and make the air accelerate through the air delivery pipe 17 and the branch air pipes 19 and uniformly send it into the interior of the incineration chamber 3, thereby effectively increasing the oxygen content in the incineration chamber 3, and further improving the incineration efficiency of the garbage in the incineration chamber 3. At the same time, by setting the dust-proof covers 20 to protect the branch air pipes 19, it effectively reduces the dust generated by the incineration in the incineration chamber 3 from entering the interior of the air delivery pipe 17 through the branch air pipes 19, and improves the practicability of the device.

[0040] Refer to Figures 1-3 , the catalytic component includes a plurality of catalyst substrates 21 symmetrically and fixedly connected between the heating chamber 2 and the air guiding plate 12, and an ammonia spray head 22 is fixedly connected to the inner bottom of the heating chamber 2;

[0041] Wherein, two adjacent catalyst substrates 21 are arranged in a staggered manner to form an S-shaped air duct;

[0042] Furthermore, a filter screen 23 is fixedly connected to the interior of the vent 9 .

[0043] During use, when the exhaust fan 11 is started to draw the smoke generated by the incineration inside the incineration bin 3 into the interior of the heating bin 2 through the vent 9, the smoke is filtered and intercepted by the filter 23, thereby reducing the dust generated by the incineration from passing through the vent 9 and the exhaust port 10 to be discharged from the interior of the incinerator body 1. At the same time, when the smoke enters the interior of the heating bin 2, the ammonia nozzle 22 is started to connect the external ammonia storage tank, and ammonia is input into the interior of the heating bin 2 to mix with the smoke, and when the ammonia and smoke flow along the S-shaped air duct, they are fully contacted and reacted with the catalyst substrate 21, so that the nitrogen oxides in the smoke and the ammonia generate harmless nitrogen and water, which are discharged from the interior of the incinerator body 1 through the exhaust port 10, thereby effectively reducing the external discharge of nitrogen oxides in the smoke and protecting the environment.

[0044] The implementation principle of a low-nitrogen combustion garbage incinerator of this embodiment is as follows: first, the garbage is poured into the interior of the heating bin 2 through the feed port 5, and the arc-shaped heat-conducting plate 13 receives the garbage poured into the interior of the heating bin 2, and then the unloading motor 16 is started to drive the unloading plate 15 to rotate, and the unloading plate 15 pushes the garbage inside the arc-shaped heat-conducting plate 13 to pass through the feed port 4, and at the same time, slides down to the interior of the incineration bin 3 along the top of the guide plate 14, and then the igniter 6 is started to ignite the garbage passing through the feed port 4, so that the garbage is burned, and at the same time, the air supply component is cooperated to enhance the fire of the garbage incineration, and then, under the action of gravity, the incinerated garbage slides along the top inclined surfaces of the multiple inclined guide plates 7 arranged in an interlaced manner, so that the incinerated garbage residue slides into the interior of the waste bin 8 for collection;

[0045] At the same time, the exhaust fan 11 is started to draw the smoke generated by the incineration of the garbage in the incineration bin 3 through the vent 9 into the interior of the heating bin 2, and flows toward the bottom of the arc-shaped heat-conducting plate 13 along the guiding direction of the air guide plate 12, so that the high-temperature smoke exchanges heat with the surface of the arc-shaped heat-conducting plate 13, and heat-exchanges and dries the garbage received on the top of the arc-shaped heat-conducting plate 13;

[0046] Then start the exhaust fan 11 to draw the flue gas generated by incineration inside the incineration chamber 3 into the inside of the heating chamber 2 through the ventilation port 9, so that the flue gas is filtered and intercepted by the filter screen 23, thereby reducing the dust generated by incineration from passing through the ventilation port 9 and the exhaust port 10 and discharging from the inside of the incinerator body 1. At the same time, when the flue gas enters the inside of the heating chamber 2, start the ammonia nozzle 22 to connect to the ammonia storage tank externally, input ammonia into the inside of the heating chamber 2 to mix with the flue gas, and when the ammonia and the flue gas flow along the S-shaped air duct, they fully contact and react with the catalyst substrate 21, so that the nitrogen oxides in the flue gas and ammonia generate harmless nitrogen and water, and are discharged from the inside of the incinerator body 1 through the exhaust port 10.

Claims

1. A low-nitrogen combustion waste incinerator, comprising an incinerator body (1), characterized in that: A heating bin (2) is provided inside the incinerator body (1), and an incineration bin (3) is provided inside the incinerator body (1); a feeding port (4) communicating with the heating bin (2) is provided on one side of the incineration bin (3); a feeding port (5) is provided on the top of the heating bin (2); an igniter (6) is fixedly connected to the inner top of the feeding port (4); a plurality of inclined guide plates (7) are symmetrically fixedly connected to the inner side of the incineration bin (3); two adjacent inclined guide plates (7) are arranged in a staggered manner; a waste bin (8) is provided at the bottom of the incineration bin (3); a vent (9) communicating with the heating bin (2) is provided on one side of the incineration bin (3); an exhaust port (10) is provided on one side of the heating bin (2); an exhaust fan (11) is fixedly connected to the inside of the exhaust port (10); a drying mechanism is installed inside the heating bin (2); an air supply component is installed at one end of the incineration bin (3); and a catalytic component is installed at the inner bottom of the heating bin (2).

2. A low-nitrogen combustion waste incinerator according to claim 1, characterized in that: The drying mechanism comprises an air guide plate (12) fixedly connected to the interior of the heating bin (2); an arc-shaped heat conducting plate (13) is fixedly connected to the interior of the heating bin (2); the arc-shaped heat conducting plate (13) is installed above the air guide plate (12); a guide plate (14) adapted to the arc-shaped heat conducting plate (13) is fixedly connected to the interior of the feeding port (4); and a material discharge assembly is installed inside the heating bin (2).

3. A low-nitrogen combustion waste incinerator according to claim 2, characterized in that: The unloading assembly comprises an unloading plate (15) rotatably connected to the interior of the heating chamber (2), one end of the unloading plate (15) being in contact with the inner wall of the arc-shaped heat conducting plate (13), one end of the incinerator body (1) being fixedly connected to a unloading motor (16), the output end of the unloading motor (16) being fixedly connected to the unloading plate (15).

4. A low-nitrogen combustion waste incinerator according to claim 1, characterized in that: The air supply assembly comprises an air supply pipe (17) fixedly connected to one end of the incineration bin (3); an air supply fan (18) is fixedly connected to an air inlet of the air supply pipe (17); and a plurality of air branch pipes (19) in communication with the interior of the incineration bin (3) are evenly arranged at one end of the air supply pipe (17).

5. A low-nitrogen combustion waste incinerator according to claim 4, characterized in that: A plurality of dust covers (20) are fixedly connected to the interior of the incineration bin (3), and the gas branch pipes (19) are installed inside the dust covers (20).

6. A low-nitrogen combustion waste incinerator according to claim 1, characterized in that: The catalytic assembly comprises a plurality of catalyst substrates (21) symmetrically fixedly connected between the heating chamber (2) and the air guide plate (12); an ammonia nozzle (22) is fixedly connected to the inner bottom of the heating chamber (2).

7. A low-nitrogen combustion waste incinerator according to claim 6, characterized in that: Two adjacent catalyst substrates (21) are arranged in a staggered manner to form an S-shaped air duct.

8. The low-nitrogen combustion waste incinerator according to claim 1, characterized in that: A filter screen (23) is fixedly connected to the interior of the vent (9).

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