CN219913122U - Combustion flue gas residence temperature utilizing device - Google Patents
Combustion flue gas residence temperature utilizing device Download PDFInfo
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- CN219913122U CN219913122U CN202321008987.2U CN202321008987U CN219913122U CN 219913122 U CN219913122 U CN 219913122U CN 202321008987 U CN202321008987 U CN 202321008987U CN 219913122 U CN219913122 U CN 219913122U
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- flue gas
- raw material
- chamber
- preheating cavity
- gas residence
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000003546 flue gas Substances 0.000 title claims abstract description 57
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 239000002994 raw material Substances 0.000 claims abstract description 74
- 238000007790 scraping Methods 0.000 claims abstract description 21
- 230000007704 transition Effects 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 21
- 238000007599 discharging Methods 0.000 abstract description 7
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000004071 soot Substances 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a combustion flue gas residence temperature utilization device, and relates to the technical field of energy recovery; the device comprises a combustion chamber, wherein a smoke residence chamber is arranged on the top of the combustion chamber, a raw material preheating cavity is rotatably arranged in the smoke residence chamber, and a scraper for scraping attached soot is floatingly arranged above the raw material preheating cavity; the high-temperature flue gas is guided according to the channel and the flow velocity is reduced so that the high-temperature flue gas heats the raw material in the raw material preheating cavity in the flue gas residence chamber, and the flue gas outlet channel is of an inverted circular truncated cone structure so that the flow velocity of the flue gas is reduced, and therefore enough time is provided for conducting heat; the ash attached to the outer surface of the raw material preheating cavity is scraped by sliding the scraping plate on the surface of the raw material preheating cavity, so that heat transfer deterioration caused by the surface covered by flue gas after long-term use is avoided, in addition, a control block and a raw material baffle are arranged at the positions of a feed inlet and a discharge outlet of the raw material preheating cavity in a sliding manner to control feeding and discharging, and the rotating direction can automatically control the switch of the control block and the raw material baffle to realize feeding and discharging.
Description
Technical Field
The utility model relates to the technical field of energy recovery, in particular to a combustion flue gas residence temperature utilization device.
Background
In the conventional fossil fuel utilization process, for example, when coal is burned for production, a large amount of high-temperature flue gas is generated, and the high-temperature flue gas is discharged after being cooled and purified, in essence, the high-temperature heat energy is only cooled and not fully utilized, or the heat energy is utilized to exchange heat for water, and the mode is not enough to directly or can cause heat loss;
the ignition point of the raw material is generally higher, and the temperature in the combustion chamber is inevitably reduced after the raw material is refilled with fuel, so that the combustion efficiency and the utilization rate are affected.
Disclosure of Invention
The utility model aims to provide a combustion flue gas residence temperature utilization device.
The technical problems solved by the utility model are as follows:
(1) How to heat the raw materials in the raw material preheating cavity in the smoke residence chamber by guiding the high-temperature smoke according to the channel and reducing the flow velocity of the high-temperature smoke so as to solve the problem of direct utilization of the smoke;
(2) How to scrape the ash attached to the outer surface of the raw material preheating cavity by sliding the scraper on the surface of the raw material preheating cavity, so as to solve the problem of poor heat transfer caused by the surface covered by the flue gas after long-term use;
(3) How to realize the feeding and discharging of the raw materials in the raw material preheating cavity by sliding the control block and the raw material baffle on the surface of the raw material preheating cavity and controlling the rotation direction.
The utility model can be realized by the following technical scheme: the combustion flue gas residence temperature utilization device comprises a combustion chamber, wherein a flue gas residence chamber is erected at the top of the combustion chamber, a raw material preheating cavity is rotatably arranged in the flue gas residence chamber, and a scraper for scraping attached soot is floatingly arranged above the raw material preheating cavity.
The utility model further technically improves that: an inverted circular truncated cone type smoke outlet channel is arranged between the combustion chamber and the smoke residence chamber.
The utility model further technically improves that: a plurality of floating pins are arranged between the scraping plate and the smoke residence chamber, the upper ends of the floating pins are fixedly connected with the inside of the smoke residence chamber, the lower ends of the floating pins are in sliding connection with the scraping plate, floating springs are arranged on the periphery of the floating pins, and two ends of each floating spring are respectively abutted with the smoke residence chamber and the scraping plate.
The utility model further technically improves that: and a control block is slidably arranged at the symmetrical position at the outer side of the raw material preheating cavity, and one side of the control block is fixedly connected with a raw material baffle.
The utility model further technically improves that: a floating block is arranged on one side surface of the smoke residence chamber in a floating mode, the outer side surface of the control block is arranged to be a smooth transition curved surface, and the floating block is in sliding fit with the outer side surface of the control block.
The utility model further technically improves that: the shape of the bottom contour of the scraping plate is matched with the outer radian of the raw material preheating cavity, and the scraping plate and the rotating raw material preheating cavity slide relatively.
The utility model further technically improves that: the middle position of the bottom of the scraping plate is also provided with a yielding groove which is convenient for the control block to pass through.
Compared with the prior art, the utility model has the following beneficial effects:
1. the high-temperature flue gas is guided according to the channel and the flow velocity is reduced to heat the raw material in the raw material preheating cavity in the flue gas residence chamber, and the flue gas outlet channel is of an inverted circular truncated cone structure to enable the flow velocity of the flue gas to be slow, so that enough time is provided for conducting heat, and the heat of the high-temperature flue gas is fully utilized;
2. the ash attached to the outer surface of the raw material preheating cavity is scraped by sliding the scraping plate on the surface of the raw material preheating cavity, so that heat transfer deterioration caused by the surface covered by flue gas after long-term use is avoided, in addition, a control block and a raw material baffle are arranged at the positions of a feed inlet and a discharge outlet of the raw material preheating cavity in a sliding manner to control feeding and discharging, and the rotating direction can automatically control the switch of the control block and the raw material baffle to realize feeding and discharging.
Drawings
The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the connection of the raw material preheating cavity and the scraper structure of the utility model;
FIG. 3 is a schematic diagram of the slider and control block configuration of the present utility model;
fig. 4 is an enlarged schematic view of a detail a in fig. 1 according to the present utility model.
In the figure: 1. a combustion chamber; 2. a flue gas residence chamber; 3. a smoke outlet channel; 4. a raw material preheating cavity; 5. a motor; 6. a chain; 7. a scraper; 8. a control block; 9. a raw material baffle; 10. a slider; 11. a floating pin; 12. a floating spring; 13. a limiting block; 14. a relief groove; 15. a flue gas discharge pipe.
Detailed Description
In order to further describe the technical means and effects adopted by the utility model for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the utility model with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-4, a combustion flue gas residence temperature utilization device comprises a combustion chamber 1 and a flue gas residence chamber 2, wherein the flue gas residence chamber 2 is fixedly arranged right above the combustion chamber 1, a flue gas outlet channel 3 is arranged between the flue gas residence chamber 2 and the combustion chamber 1, the structure of the flue gas outlet channel 3 is of an inverted circular truncated cone structure with a narrow bottom and a wide top, and the advantage of the structure is that after flue gas comes out from the top of the combustion chamber 1, the flow speed of the flue gas is reduced due to the gradual increase of the diameter of the channel, so that the duration of the flue gas in the flue gas residence chamber 2 is prolonged, raw materials can be fully preheated, and a flue gas discharge pipe 15 is fixedly connected to the top of the flue gas residence chamber 2 in a penetrating manner so as to facilitate the discharge of the flue gas;
the inside of the smoke residence chamber 2 is provided with a raw material preheating chamber 4, two ends of the raw material preheating chamber 4 are rotatably connected with the inner wall of the smoke residence chamber 2 through bearings, the top of the smoke residence chamber 2 is fixedly provided with a mounting frame, the top of the mounting frame is provided with a motor 5, the output end of the motor 5 and one side end part of the raw material preheating chamber 4 are fixedly provided with chain wheels, a chain 6 is arranged between the two chain wheels, and power transmission is carried out through the chain wheels and the chain 6;
the upper part of the raw material preheating cavity 4 is provided with a scraping plate 7, a plurality of floating pins 11 are arranged between the scraping plate 7 and the smoke residence chamber 2, the upper ends of the floating pins 11 are fixedly connected with the inner wall of the smoke residence chamber 2, the lower ends of the floating pins 11 are fixedly provided with limiting blocks 13, the limiting blocks 13 are arranged in a sliding way in the top sliding grooves of the scraping plate 7 and cannot deviate from each other, the periphery of the floating pins 11 is provided with floating springs 12, two ends of each floating spring 12 are respectively abutted against the top inner wall of the smoke residence chamber 2 and the top of the scraping plate 7, the bottom of the scraping plate 7 is abutted against the outer side of the raw material preheating cavity 4 under the action of self gravity and the elasticity of the floating springs 12, the outline shape of the bottom of the scraping plate 7 is matched with the outer radian of the raw material preheating cavity 4, a yielding groove 14 is also formed in the middle position of the bottom of the scraping plate 7, and the raw material preheating cavity 4 relatively slides, so that soot on the surface of the raw material preheating cavity 4 can be scraped, and the condition that a heat insulating layer is poor in heating effect of the raw material preheating cavity 4 is avoided;
a control block 8 is slidably arranged at the symmetrical position of the outer side of the raw material preheating cavity 4, a raw material baffle 9 is fixedly connected to one side of the control block 8, the raw material baffle 9 is positioned at the position of a discharge hole or a feed hole of the raw material preheating cavity 4 and is used for plugging the discharge hole or the feed hole in an initial state, the outer side surface of the control block 8 is set to be a smooth transition curved surface, the connection part between the smooth transition curved surface and the raw material baffle 9 is tangential, the other side surface of the control block 8 intersecting with the length direction of the raw material preheating cavity 4 is perpendicular to the outer surface of the raw material preheating cavity 4, and the function of the yielding groove 14 is beneficial for the control block 8 to smoothly pass through the scraping plate 7;
the front side or the rear side of the smoke residence chamber 2 is provided with a floating block 10 in a floating manner, the floating block 10 is elastically installed on the inner side wall of the smoke residence chamber 2 by a spring, in the embodiment, when the motor 5 drives the raw material preheating cavity 4 to rotate in the clockwise direction from the left side view, the floating block 10 is contacted with the control block 8, and the floating block 10 slides along the smooth transition curved surface of the control block 8, so that the blocking is not caused; when the motor 5 drives the raw material preheating cavity 4 to rotate in the anticlockwise direction, the floating block 10 is abutted with the side face, perpendicular to the raw material preheating cavity 4, of the control block 8, so that the control block 8 slides relative to the outer surface of the raw material preheating cavity 4, and the raw material baffle 9 is driven to slide together, so that a feed port or a discharge port of the raw material preheating cavity 4 is opened for feeding or discharging;
when the utility model is used, the output end of the precursor driving motor 5 rotates clockwise or anticlockwise, so that the corresponding position of the feed inlet reaches the corresponding position of the floating block 10, the floating block 10 pushes the control block 8 to move, the feed inlet is opened for raw material filling, and the feed inlet is automatically closed under the control of the spring after the raw material filling is finished;
then, the output end of the driving motor 5 reversely rotates, high-temperature flue gas enters the flue gas residence chamber 2 from the combustion chamber 1 through the flue gas outlet channel 3, and the raw material preheating cavity 4 rotates under the driving of the motor 5, so that the raw material is stirred in the raw material preheating cavity 4, and all parts of the raw material can be fully contacted with the inside of the raw material preheating cavity 4 and then heated;
after heating is completed, the corresponding position of the feeding hole reaches the corresponding position of the floating block 10, the floating block 10 pushes the control block 8 to move, the discharging hole is opened to release raw materials, one round of raw material preheating is completed, raw material filling is performed again, the next round of preheating can be started, and the heat energy of the flue gas is utilized.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in all aspects, including those of ordinary skill in the art, without departing from the spirit and scope of the present utility model.
Claims (7)
1. The utility model provides a combustion flue gas resident temperature utilizes device, includes combustion chamber (1), its characterized in that, flue gas resident room (2) have been erect at the top of combustion chamber (1), flue gas resident room (2) internal rotation is provided with raw materials and preheats chamber (4), and the top of raw materials preheats chamber (4) is floated and is installed scraper blade (7) that are used for striking off adhesion cigarette ash.
2. The combustion flue gas residence temperature utilization device according to claim 1, wherein a reverse truncated cone-shaped flue gas outlet channel (3) is arranged between the combustion chamber (1) and the flue gas residence chamber (2).
3. The combustion flue gas residence temperature utilization device according to claim 1, wherein a plurality of floating pins (11) are arranged between the scraping plate (7) and the flue gas residence chamber (2), the upper ends of the floating pins (11) are fixedly connected with the inside of the flue gas residence chamber (2), the lower ends of the floating pins (11) are slidably connected with the scraping plate (7), floating springs (12) are arranged on the periphery of the floating pins (11), and two ends of each floating spring (12) are respectively abutted against the flue gas residence chamber (2) and the scraping plate (7).
4. The combustion flue gas residence temperature utilization device according to claim 1, wherein a control block (8) is slidably mounted at an outer symmetrical position of the raw material preheating cavity (4), and a raw material baffle (9) is fixedly connected to one side of the control block (8).
5. The combustion flue gas residence temperature utilization device according to claim 4, wherein a floating block (10) is arranged on one side surface of the flue gas residence chamber (2) in a floating manner, the outer side surface of the control block (8) is arranged to be a smooth transition curved surface, and the floating block (10) is in sliding fit with the outer side surface of the control block (8).
6. The combustion flue gas residence temperature utilization device according to claim 4, wherein the bottom profile shape of the scraper (7) is matched with the outer arc of the raw material preheating cavity (4), and the scraper (7) and the rotating raw material preheating cavity (4) slide relatively.
7. The combustion flue gas residence temperature utilization device according to claim 4, wherein a yielding groove (14) for facilitating the passage of the control block (8) is further formed in the middle position of the bottom of the scraper (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321008987.2U CN219913122U (en) | 2023-04-28 | 2023-04-28 | Combustion flue gas residence temperature utilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321008987.2U CN219913122U (en) | 2023-04-28 | 2023-04-28 | Combustion flue gas residence temperature utilizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219913122U true CN219913122U (en) | 2023-10-27 |
Family
ID=88468155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321008987.2U Active CN219913122U (en) | 2023-04-28 | 2023-04-28 | Combustion flue gas residence temperature utilizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219913122U (en) |
-
2023
- 2023-04-28 CN CN202321008987.2U patent/CN219913122U/en active Active
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