CN210485747U - Low-nitrogen rotary kiln garbage incinerator - Google Patents
Low-nitrogen rotary kiln garbage incinerator Download PDFInfo
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- CN210485747U CN210485747U CN201921275748.7U CN201921275748U CN210485747U CN 210485747 U CN210485747 U CN 210485747U CN 201921275748 U CN201921275748 U CN 201921275748U CN 210485747 U CN210485747 U CN 210485747U
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- rotary kiln
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Abstract
A low-nitrogen rotary kiln garbage incinerator relates to the technical field of garbage incineration. It contains the rotary kiln, second combustion chamber, middle box, the technology mouth, high temperature looks the mirror mouth, go up the barrel, the cooling air export, the cooling air import, steel structure frame, upper overgrate air import, lower floor's overgrate air import, the grate, the rotary kiln export links to each other with second combustion chamber, be equipped with middle box on the second combustion chamber, set up the technology mouth on the middle box, technology mouth right side sets up high temperature looks the mirror mouth, fixed connection upper cylinder on the middle box, go up the barrel front side and set up cooling air export and cooling air import, the cooling air export sets up in cooling air import left side, second combustion chamber bottom welding steel structure frame, upper overgrate air import sets up in lower floor's overgrate air import top, the grate is connected in second combustion chamber bottom. After the technical scheme is adopted, the beneficial effects of the utility model are that: its structural design is reasonable, can ensure on the basis of accurate accuse wind, satisfies the requirement of burning to be difficult for the overtemperature.
Description
Technical Field
The utility model relates to a waste incineration technical field, concretely relates to low-nitrogen rotary kiln waste incinerator.
Background
The generation of nitrogen oxides in incineration flue gas mainly comes from fuel nitrogen and thermal nitrogen. Fuel nitrogen is mainly nitrogen in the material that can be converted into nitrogen oxides, while thermal nitrogen refers to nitrogen in air that is converted into nitrogen oxides at a certain temperature. The control of fuel nitrogen is mainly through reasonable material compatibility, the unit nitrogen matter content of the fully homogenized burning material to fully know the concrete composition of nitrogen matter, give full control and homogenization to the composition that is easy to generate nitrogen oxide, thereby effectively reducing the generation of fuel nitrogen. Thermal nitrogen needs to be reduced by controlling the combustion process. The generation of thermal nitrogen is formed by oxidizing nitrogen in air at high temperature, and the generation amount depends on the temperature. When T is less than 1500 ℃, the generation amount of NO is very small, and when T is more than 1500 ℃, the reaction rate is increased by 6-7 times when T is increased by 100 ℃. When the temperature is always high enough, thermal NOx accounts for 20% of the total production. Effective control of the incineration temperature is therefore the primary means of controlling thermal nitrogen.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a low nitrogen rotary kiln waste incinerator, its structural design is reasonable, can control effectively and burn the temperature, can ensure on the basis of accurate accuse wind, satisfy and burn the requirement to difficult overtemperature is fit for using widely.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the rotary kiln comprises a rotary kiln 1, a secondary combustion chamber 2, an intermediate box body 21, a process port 211, a high-temperature view mirror port 212, an upper cylinder body 22, a cooling air outlet 23, a cooling air inlet 24, a steel structure frame 25, an upper secondary air inlet 26, a lower secondary air inlet 27 and a grate 3, wherein the outlet of the rotary kiln 1 is connected with the secondary combustion chamber 2, the intermediate box body 21 is arranged on the secondary combustion chamber 2, the process port 211 is arranged on the intermediate box body 21, the high-temperature view mirror port 212 is arranged on the right side of the process port 211, the upper cylinder body 22 is fixedly connected on the intermediate box body 21, the cooling air outlet 23 and the cooling air inlet 24 are arranged on the front side of the upper cylinder body 22, the cooling air outlet 23 is arranged on the left side of the cooling air inlet 24, the steel structure frame 25 is welded at the bottom of the secondary combustion chamber 2, the upper secondary air inlet 26.
The inclination of the rotary kiln 1 is 1-3%, the outer wall of the kiln body of the rotary kiln 1 is of a steel cylinder structure, and the inner wall of the kiln body of the rotary kiln 1 is fixedly connected with refractory bricks 11.
The rotary kiln comprises a rotary kiln body 1 and is characterized in that a gear 12 is fixedly connected to the outside of the rotary kiln body 1, a gearbox 13 is arranged below the gear 12, and the gearbox 13 is electrically connected with a motor 14.
The right side of the high-temperature viewing mirror port 212 is provided with a flame detection port 213, and the right side wall of the middle box body 21 is provided with an access port 214.
The front side of the upper cylinder 22 is provided with a flue gas outlet 221, and the upper end of the upper cylinder 22 is fixedly connected with an emergency discharge chimney 222.
The bottom of the fire grate 3 is a steel structure 31, an outer box body 32 is fixedly connected above the steel structure 31, a transmission mechanism 311 and a hydraulic driving mechanism 312 are arranged in the steel structure 31, an access door 321 is arranged on the outer box body 32, a plurality of blanking hoppers 33 are arranged at the bottom of the fire grate 3, and a fire grate assembly 34 is arranged on the right side wall of the fire grate 3.
The utility model discloses a theory of operation: the conventional primary air and secondary air for incineration are divided into primary air, grate air and secondary air. The primary air supply of the rotary kiln is reduced, the oxygen content in the kiln is low, the pyrolysis process is easy to carry out, the overtemperature is not easy to exceed, the overall temperature of the kiln body is low (can be controlled between 600 ℃ and 1000 ℃), and the complete combustion of materials is fully ensured by the supply of the exhaust air of the kiln. The air supply of the second combustion chamber is also divided into two air streams, one air stream is adjustable in frequency conversion, the other air stream is mainly used for improving the turbulence of the second combustion chamber, the combustion control in the second combustion chamber is ensured, the burning requirement is met on the basis of accurate air control, and the overtemperature is not easily caused.
After the technical scheme is adopted, the utility model discloses beneficial effect does: its structural design is reasonable, can control effectively and burn the temperature, can ensure on the basis of accurate accuse wind, satisfies the requirement of burning to difficult overtemperature is fit for using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a rotary kiln 1 in the present invention;
fig. 2 is a schematic view of the connection structure of the second combustion chamber 2 and the grate 3;
FIG. 3 is a right side view corresponding to FIG. 2;
FIG. 4 is a top view corresponding to FIG. 2;
fig. 5 is a schematic structural view of the middle grate 3 of the present invention;
fig. 6 is a right side view corresponding to fig. 5.
Description of reference numerals: the rotary kiln comprises a rotary kiln 1, refractory bricks 11, a gear 12, a gearbox 13, a motor 14, a secondary combustion chamber 2, an intermediate box body 21, a process port 211, a high-temperature viewing mirror port 212, a flame detection port 213, an access port 214, an upper cylinder body 22, a flue gas outlet 221, an emergency discharge chimney 222, a cooling air outlet 23, a cooling air inlet 24, a steel structure frame 25, an upper secondary air inlet 26, a lower secondary air inlet 27, a grate 3, a steel structure 31, a transmission mechanism 311, a hydraulic driving mechanism 312, an outer box body 32, an access door 321, a blanking hopper 33 and a grate assembly 34.
Detailed Description
Referring to fig. 1 to 6, the technical solution adopted by the present embodiment is: the rotary kiln comprises a rotary kiln 1, a secondary combustion chamber 2, a middle box body 21, a process port 211, a high-temperature sight glass port 212, an upper cylinder body 22, a cooling air outlet 23, a cooling air inlet 24, a steel structure frame 25, an upper secondary air inlet 26, a lower secondary air inlet 27 and a fire grate 3, wherein the outlet of the rotary kiln 1 is connected with the secondary combustion chamber 2, the middle box body 21 is arranged on the secondary combustion chamber 2, the process port 211 and the high-temperature sight glass port 212 are arranged on the middle box body 21, the process port 211 is arranged at the left side position of the high-temperature sight glass port 212, a worker can check the internal condition of the secondary combustion chamber 2 through the high-temperature sight glass port 212, the upper cylinder body 22 is fixedly connected above the middle box body 21, the upper cylinder body 22 is provided with the cooling air outlet 23 and the cooling air inlet 24, the cooling air outlet 23 is arranged at the left side position of the cooling air outlet 24, the bottom of the secondary combustion chamber 2 is welded and fixed on the steel structure frame 25, the fire grate 3 is fixedly arranged at the bottom of the secondary combustion chamber 2.
The inclination of the rotary kiln 1 is 1-3%, the exterior of the rotary kiln 1 adopts a steel cylinder structure, and the inner wall of the rotary kiln 1 is fixedly connected with refractory bricks 11.
The rotary kiln comprises a rotary kiln body 1, a gear 12 is connected to the outside of the rotary kiln body 1, a gearbox 13 is arranged below the gear 12, and the gearbox 13 is electrically connected with a motor 14.
The right side of the high-temperature viewing mirror port 212 is provided with a flame detection port 213, and the right side wall of the middle box body 21 is provided with an access port 214.
The upper cylinder 22 is provided with a flue gas outlet 221, and the upper end of the upper cylinder 22 is fixedly provided with an emergency discharge chimney 222.
The bottom of the fire grate 2 is a steel structure 31, an outer box body 32 is arranged above the steel structure 31, a transmission mechanism 311 and a hydraulic driving mechanism 312 are arranged inside the steel structure 31, an access door 321 is arranged on the outer box body 32, the bottom of the fire grate 3 is connected with a plurality of blanking hoppers 33, and a fire grate assembly 34 is arranged on the right side wall of the fire grate 3.
The utility model discloses a theory of operation: the conventional primary air and secondary air for incineration are divided into primary air, grate air and secondary air. The primary air supply of the rotary kiln is reduced, the oxygen content in the kiln is low, the pyrolysis process is easy to carry out, the overtemperature is not easy to occur, the overall temperature of the kiln body is low (can be controlled between 600 ℃ and 1000 ℃), and the complete combustion of materials is fully ensured through the supply of the exhaust air of the kiln. The air supply of the second combustion chamber is also divided into two air streams, one air stream is adjustable in frequency conversion, the other air stream is mainly used for improving the turbulence of the second combustion chamber, the combustion control in the second combustion chamber is ensured, the burning requirement is met on the basis of accurate air control, and the overtemperature is not easily caused.
After the technical scheme is adopted, the utility model discloses beneficial effect does: its structural design is reasonable, can control effectively and burn the temperature, can ensure on the basis of accurate accuse wind, satisfies the requirement of burning to difficult overtemperature is fit for using widely.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. Low nitrogen rotary kiln waste incinerator, its characterized in that: the high-temperature secondary air furnace comprises a rotary kiln (1), a secondary combustion chamber (2), a middle box body (21), a process port (211), a high-temperature viewing mirror port (212), an upper cylinder body (22), a cooling air outlet (23), a cooling air inlet (24), a steel structure frame (25), an upper secondary air inlet (26), a lower secondary air inlet (27) and a fire grate (3), wherein the outlet of the rotary kiln (1) is connected with the secondary combustion chamber (2), the middle box body (21) is arranged on the secondary combustion chamber (2), the process port (211) is arranged on the middle box body (21), the high-temperature viewing mirror port (212) is arranged on the right side of the process port (211), the upper cylinder body (22) is fixedly connected with the upper cylinder body (21), the cooling air outlet (23) and the cooling air inlet (24) are arranged on the front side of the upper cylinder body (22), the cooling air outlet (23) is arranged on the left side of the cooling air, the upper secondary air inlet (26) is arranged above the lower secondary air inlet (27), and the grate (3) is connected to the bottom of the secondary combustion chamber (2).
2. The low nitrogen rotary kiln garbage incinerator according to claim 1, wherein: the inclination of the rotary kiln (1) is 1-3%, the outer wall of the kiln body of the rotary kiln (1) is of a steel cylinder structure, and the inner wall of the kiln body of the rotary kiln (1) is fixedly connected with refractory bricks (11).
3. The low nitrogen rotary kiln garbage incinerator according to claim 1, wherein: the rotary kiln is characterized in that a gear (12) is fixedly connected to the outside of the rotary kiln body of the rotary kiln (1), a gearbox (13) is arranged below the gear (12), and the gearbox (13) is electrically connected with a motor (14).
4. The low nitrogen rotary kiln garbage incinerator according to claim 1, wherein: the right side of the high-temperature viewing mirror opening (212) is provided with a flame detection opening (213), and the right side wall of the middle box body (21) is provided with an access opening (214).
5. The low nitrogen rotary kiln garbage incinerator according to claim 1, wherein: the front side of the upper cylinder body (22) is provided with a flue gas outlet (221), and the upper end of the upper cylinder body (22) is fixedly connected with an emergency discharge chimney (222).
6. The low nitrogen rotary kiln garbage incinerator according to claim 1, wherein: the fire grate is characterized in that the bottom of the fire grate (3) is a steel structure (31), an outer box body (32) is fixedly connected above the steel structure (31), a transmission mechanism (311) and a hydraulic driving mechanism (312) are arranged in the steel structure (31), an access door (321) is arranged on the outer box body (32), a plurality of blanking hoppers (33) are arranged at the bottom of the fire grate (3), and a fire grate assembly (34) is arranged on the right side wall of the fire grate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921275748.7U CN210485747U (en) | 2019-08-08 | 2019-08-08 | Low-nitrogen rotary kiln garbage incinerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921275748.7U CN210485747U (en) | 2019-08-08 | 2019-08-08 | Low-nitrogen rotary kiln garbage incinerator |
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| CN210485747U true CN210485747U (en) | 2020-05-08 |
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| CN201921275748.7U Active CN210485747U (en) | 2019-08-08 | 2019-08-08 | Low-nitrogen rotary kiln garbage incinerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410801A (en) * | 2019-08-08 | 2019-11-05 | 上海灿州环境工程有限公司 | Low nitrogen rotary kiln refuse incinerator |
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2019
- 2019-08-08 CN CN201921275748.7U patent/CN210485747U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410801A (en) * | 2019-08-08 | 2019-11-05 | 上海灿州环境工程有限公司 | Low nitrogen rotary kiln refuse incinerator |
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