CN219955347U - Hearth structure of small household garbage incinerator - Google Patents
Hearth structure of small household garbage incinerator Download PDFInfo
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- CN219955347U CN219955347U CN202321612984.XU CN202321612984U CN219955347U CN 219955347 U CN219955347 U CN 219955347U CN 202321612984 U CN202321612984 U CN 202321612984U CN 219955347 U CN219955347 U CN 219955347U
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- rear arch
- front arch
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- 238000004939 coking Methods 0.000 abstract description 16
- 239000002245 particle Substances 0.000 description 12
- 230000005484 gravity Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a hearth structure of a small household garbage incinerator, which comprises a front arch and a rear arch, wherein the rear arch is positioned behind the front arch and is arranged opposite to the front arch; the front arch comprises a front arch upper section, a front arch middle section and a front arch lower section which are connected in sequence; the rear arch comprises a rear arch upper section, a rear arch middle section and a rear arch lower section which are connected in sequence; a hearth throat is arranged between the front arch middle section and the rear arch middle section; the front arch middle section is inclined from bottom to top to one side of the rear arch; the rear arch middle section is arranged along the vertical direction. The utility model can enlarge the flow area of the throat part of the hearth and reduce the coking phenomenon at the throat part of the hearth.
Description
Technical Field
The utility model relates to a hearth structure of a small household garbage incinerator.
Background
At present, a small-sized household garbage incinerator is equipment for incinerating and treating household garbage, the garbage is combusted in a hearth to become waste gas, the waste gas enters a secondary combustion chamber, the waste gas is combusted completely under forced combustion of a combustor, the waste gas enters a spray type dust remover, the waste gas is discharged into the atmosphere through a chimney after dust removal, and 50-200 tons of household garbage can be treated by the small-sized household garbage incinerator every day.
In the prior art, the throat of the hearth is relatively narrow, for example, the hearth of a garbage incinerator is disclosed in China patent publication No. CN209926363U, and the throat of the hearth is relatively narrow. Ash particles in the furnace can soften at high temperature and have certain binding capacity, and the ash particles can flow upwards along with the airflow in the furnace and pass through the throat of the furnace. Because the throat of the hearth is relatively narrow, ash particles easily adhere to the inner wall of the throat of the hearth in a large amount when passing through the throat of the hearth, so that coking is formed, and the coking can bring about a series of adverse effects on the garbage incinerator.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a hearth structure of a small household garbage incinerator, which can enlarge the flow area of the throat part of the hearth and reduce the coking phenomenon at the throat part of the hearth.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the hearth structure of the small-sized household garbage incinerator comprises a front arch and a rear arch which is positioned behind the front arch and is arranged opposite to the front arch;
the front arch comprises a front arch upper section, a front arch middle section and a front arch lower section which are connected in sequence;
the rear arch comprises a rear arch upper section, a rear arch middle section and a rear arch lower section which are connected in sequence;
a hearth throat is arranged between the front arch middle section and the rear arch middle section;
the front arch middle section is inclined from bottom to top to one side of the rear arch;
the rear arch middle section is arranged along the vertical direction.
There is further provided an arrangement of the front arch lower sections, the front arch lower sections being disposed in a horizontal direction.
Further provided is a concrete structure of the front arch and the rear arch, wherein the upper section of the front arch is inclined from bottom to top and forwards, and the lower end part of the upper section of the front arch is connected with the upper end part of the middle section of the front arch;
the rear end part of the front arch lower section is connected with the lower end part of the front arch middle section;
the rear arch upper section is inclined backwards from bottom to top, and the lower end part of the rear arch upper section is connected with the upper end part of the rear arch middle section;
the rear arch lower section is inclined forwards from bottom to top, the upper end part of the rear arch lower section and the lower end part of the rear arch middle section are further inclined, and the included angle alpha between the front arch upper section and the front arch middle section is 50-60 degrees;
the included angle beta between the middle section of the front arch and the horizontal direction is 35-45 degrees.
Further, the included angle gamma between the upper section of the rear arch and the vertical direction is 10-15 degrees;
the included angle delta between the lower section of the rear arch and the horizontal direction is 140-150 degrees.
Further, an extension line of the front arch lower section intersects the rear arch lower section at an upper end point of the rear arch lower section.
Further, an extension line of the front arch middle section and the rear arch upper section intersect at an upper end point of the rear arch upper section.
Further, a front secondary air pipe is arranged in the upper section of the front arch, and a rear secondary air pipe is arranged in the upper section of the rear arch.
Further, the front secondary air pipe and the rear secondary air pipe are arranged in a hedging manner.
Further, a rear wall secondary air pipe is arranged on the lower section of the rear arch.
After the technical scheme is adopted, as the rear arch middle section is arranged along the vertical direction and the front arch middle section is inclined from bottom to top to one side of the rear arch, compared with the prior art, the flow area of the throat of the hearth is enlarged as much as possible, the flow area of the throat of the hearth is enlarged, a large amount of ash particles can be prevented from adhering to the inner wall of the throat of the hearth, and the coking phenomenon at the throat of the hearth is reduced. In addition, the inclined surface of the front arch middle section faces downwards, and ash particles can fall off the front arch middle section under the action of gravity after adhering to the front arch middle section; the rear arch middle section is arranged in the vertical direction, ash particles can slide downwards under the action of gravity after being adhered to the rear arch middle section and then fall from the rear arch middle section, so that coking phenomenon on the throat of a hearth is further reduced. The hearth structure of the embodiment of the utility model is applied to the small household garbage incinerator, can reduce adverse effects of coking on the small garbage incinerator, improves the adaptability of the small garbage incinerator, and reduces coking risks.
Drawings
Fig. 1 is a schematic structural view of a hearth structure of a small-sized domestic garbage incinerator according to the present utility model.
Detailed Description
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example 1
As shown in fig. 1, a hearth structure of a small-sized garbage incinerator includes a front arch 100 and a rear arch 200 positioned behind the front arch 100 and disposed opposite to the front arch 100;
the front arch 100 comprises a front arch upper section 1, a front arch middle section 2 and a front arch lower section 3 which are connected in sequence;
the rear arch 200 comprises a rear arch upper section 4, a rear arch middle section 5 and a rear arch lower section 6 which are connected in sequence;
a hearth throat 7 is arranged between the front arch middle section 2 and the rear arch middle section 5;
the front arch middle section 2 is inclined from bottom to top to one side of the rear arch 200;
the rear arch middle section 5 is arranged along the vertical direction; specifically, since the rear arch middle section 5 is disposed along the vertical direction and the front arch middle section 2 is inclined from bottom to top to the rear arch 200 side, compared with the prior art, the flow area of the furnace throat 7 is enlarged as much as possible, the flow area of the furnace throat 7 is enlarged, ash particles can be prevented from adhering to the inner wall of the furnace throat 7 in a large amount, and thus coking phenomenon at the furnace throat 7 is reduced. In addition, the inclined surface of the front arch middle section 2 faces downwards, and ash particles can fall off the front arch middle section 2 under the action of gravity after adhering to the front arch middle section 2; the rear arch middle section 5 is arranged along the vertical direction, ash particles can slide downwards under the action of gravity after being adhered to the rear arch middle section 5 and then fall from the rear arch middle section 5, so that the coking phenomenon on the hearth throat 7 is further reduced. The hearth structure of the embodiment of the utility model is applied to the small household garbage incinerator, can reduce adverse effects of coking on the small garbage incinerator, improves the adaptability of the small garbage incinerator, and reduces coking risks.
As shown in fig. 1, the front arch lower sections 3 are disposed in a horizontal direction; specifically, a fire grate is disposed under the front arch 100 and the rear arch 200 in the small garbage incinerator, garbage burns on the fire grate, and the front arch 100 can reflect heat radiation generated when the garbage burns on the fire grate to the garbage on the fire grate. In the prior art, the household garbage burns on the fire grate unstably and insufficiently because of the low heat value of the household garbage. In this embodiment, the front arch lower section 3 is disposed along a horizontal direction, so that the front arch lower section 3 is closer to the garbage on the lower fire grate, and further heat radiation reflected to the garbage by the front arch lower section 3 can be increased, thereby being more beneficial to full combustion of the garbage on the fire grate, and being capable of promoting efficient and stable combustion of the garbage, and further being capable of reducing emission of pollutants at the outlet of the small garbage incinerator.
As shown in fig. 1, the front arch upper section 1 is inclined from bottom to top and forwards, and the lower end of the front arch upper section 1 is connected with the upper end of the front arch middle section 2;
the rear end part of the front arch lower section 3 is connected with the lower end part of the front arch middle section 2;
the rear arch upper section 4 is inclined backwards from bottom to top, and the lower end part of the rear arch upper section 4 is connected with the upper end part of the rear arch middle section 5;
the rear arch lower section 6 is inclined from bottom to top and forwards, and the upper end of the rear arch lower section 6 is connected with the lower end of the rear arch middle section 5.
As shown in fig. 1, the included angle α between the front arch upper section 1 and the front arch middle section 2 may be 50 ° to 60 °, the included angle β between the front arch middle section 2 and the horizontal direction may be 35 ° to 45 °, the included angle γ between the rear arch upper section 4 and the vertical direction may be 10 ° to 15 °, and the included angle δ between the rear arch lower section 6 and the horizontal direction may be 140 ° to 150 °. In this embodiment, the angle α is 50 °, the angle β is 35 °, the angle γ is 10 °, and the angle δ is 140 °.
As shown in fig. 1, the extension line of the front arch lower section 3 intersects the rear arch lower section 6 at the upper end point of the rear arch lower section 6, and the extension line of the front arch middle section 2 intersects the rear arch upper section 4 at the upper end point of the rear arch upper section 4.
As shown in fig. 1, a front secondary air pipe 8 is arranged in the front arch upper section 1, and a rear secondary air pipe 9 is arranged in the rear arch upper section 4; wherein the front secondary air pipe 8 and the rear secondary air pipe 9 are arranged in a hedging manner; specifically, the secondary air blown from the front secondary air duct 8 and the secondary air blown from the rear secondary air duct 9 meet and are injected into each other to form turbulence, so that the turbulence intensity in the furnace chamber can be enhanced.
As shown in fig. 1, a rear wall secondary air pipe 10 is arranged on the rear arch lower section 6; specifically, the secondary air blown from the back wall secondary air pipe 10 can adjust the position of the high-temperature flame in the hearth, and the adaptability of the hearth to the household garbage is enhanced.
In this embodiment, the front secondary air duct 8, the rear secondary air duct 9 and the rear wall secondary air duct 10 are respectively provided in a row.
Example two
As shown in fig. 1, a hearth structure of a small-sized garbage incinerator in this embodiment is substantially the same as that of the first embodiment, and is different only in that: the included angle alpha between the front arch upper section 1 and the front arch middle section 2 is 60 degrees, the included angle beta between the front arch middle section 2 and the horizontal direction is 45 degrees, the included angle gamma between the rear arch upper section 4 and the vertical direction is 15 degrees, and the included angle delta between the rear arch lower section 6 and the horizontal direction is 150 degrees.
Example III
As shown in fig. 1, a hearth structure of a small-sized garbage incinerator in this embodiment is substantially the same as that of the first embodiment, and is different only in that: the included angle alpha between the front arch upper section 1 and the front arch middle section 2 is 55 degrees, the included angle beta between the front arch middle section 2 and the horizontal direction is 40 degrees, the included angle gamma between the rear arch upper section 4 and the vertical direction is 12 degrees, and the included angle delta between the rear arch lower section 6 and the horizontal direction is 145 degrees.
In summary, since the rear arch middle section 5 is disposed along the vertical direction and the front arch middle section 2 is inclined from bottom to top to the rear arch 200 side, compared with the prior art, the flow area of the furnace throat 7 is enlarged as much as possible, the flow area of the furnace throat 7 is enlarged, and ash particles can be prevented from adhering to the inner wall of the furnace throat 7 in a large amount, so that coking phenomenon at the furnace throat 7 is reduced. In addition, the inclined surface of the front arch middle section 2 faces downwards, and ash particles can fall off the front arch middle section 2 under the action of gravity after adhering to the front arch middle section 2; the rear arch middle section 5 is arranged along the vertical direction, ash particles can slide downwards under the action of gravity after being adhered to the rear arch middle section 5 and then fall from the rear arch middle section 5, so that the coking phenomenon on the hearth throat 7 is further reduced. The hearth structure of the embodiment of the utility model is applied to the small household garbage incinerator, can reduce adverse effects of coking on the small garbage incinerator, improves the adaptability of the small garbage incinerator, and reduces coking risks.
The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model.
Claims (10)
1. The hearth structure of the small-sized household garbage incinerator is characterized by comprising a front arch (100) and a rear arch (200) which is positioned behind the front arch (100) and is arranged opposite to the front arch (100);
the front arch (100) comprises a front arch upper section (1), a front arch middle section (2) and a front arch lower section (3) which are connected in sequence;
the rear arch (200) comprises a rear arch upper section (4), a rear arch middle section (5) and a rear arch lower section (6) which are connected in sequence;
a hearth throat (7) is arranged between the front arch middle section (2) and the rear arch middle section (5);
the front arch middle section (2) is inclined from bottom to top to one side of the rear arch (200);
the rear arch middle section (5) is arranged along the vertical direction.
2. The hearth structure of a small household garbage incinerator according to claim 1, characterized in that the front arch lower section (3) is arranged in a horizontal direction.
3. The hearth structure of a small-sized domestic garbage incinerator according to claim 2, characterized in that,
the front arch upper section (1) is inclined from bottom to top and forwards, and the lower end part of the front arch upper section (1) is connected with the upper end part of the front arch middle section (2);
the rear end part of the front arch lower section (3) is connected with the lower end part of the front arch middle section (2);
the rear arch upper section (4) is inclined backwards from bottom to top, and the lower end part of the rear arch upper section (4) is connected with the upper end part of the rear arch middle section (5);
the rear arch lower section (6) is inclined from bottom to top and forwards, and the upper end part of the rear arch lower section (6) is connected with the lower end part of the rear arch middle section (5).
4. The hearth structure of a small-sized domestic garbage incinerator according to claim 3, characterized in that,
the included angle alpha between the front arch upper section (1) and the front arch middle section (2) is 50-60 degrees;
the included angle beta between the front arch middle section (2) and the horizontal direction is 35-45 degrees.
5. The hearth structure of a small-sized domestic garbage incinerator according to claim 3, characterized in that,
the included angle gamma between the upper section (4) of the rear arch and the vertical direction is 10-15 degrees;
the included angle delta between the rear arch lower section (6) and the horizontal direction is 140-150 degrees.
6. A hearth structure of a small-sized domestic garbage incinerator according to claim 3, characterized in that an extension line of the front arch lower section (3) intersects the rear arch lower section (6) at an upper end point of the rear arch lower section (6).
7. A hearth structure of a small-sized domestic garbage incinerator according to claim 3, characterized in that an extension line of the front arch middle section (2) intersects with the rear arch upper section (4) at an upper end point of the rear arch upper section (4).
8. The hearth structure of a small-sized household garbage incinerator according to claim 1, wherein a front secondary air pipe (8) is arranged in the front arch upper section (1), and a rear secondary air pipe (9) is arranged in the rear arch upper section (4).
9. The hearth structure of a small household garbage incinerator according to claim 8, characterized in that the front secondary air duct (8) and the rear secondary air duct (9) are arranged in opposite-impact.
10. The hearth structure of a small-sized household garbage incinerator according to claim 1, wherein a rear wall secondary air pipe (10) is arranged on the rear arch lower section (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321612984.XU CN219955347U (en) | 2023-06-25 | 2023-06-25 | Hearth structure of small household garbage incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321612984.XU CN219955347U (en) | 2023-06-25 | 2023-06-25 | Hearth structure of small household garbage incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219955347U true CN219955347U (en) | 2023-11-03 |
Family
ID=88553824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321612984.XU Active CN219955347U (en) | 2023-06-25 | 2023-06-25 | Hearth structure of small household garbage incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219955347U (en) |
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2023
- 2023-06-25 CN CN202321612984.XU patent/CN219955347U/en active Active
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