CN116146991A - Self-adaptive secondary air regulating system of reverse pushing grate furnace and working method thereof - Google Patents
Self-adaptive secondary air regulating system of reverse pushing grate furnace and working method thereof Download PDFInfo
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- CN116146991A CN116146991A CN202310409495.2A CN202310409495A CN116146991A CN 116146991 A CN116146991 A CN 116146991A CN 202310409495 A CN202310409495 A CN 202310409495A CN 116146991 A CN116146991 A CN 116146991A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 title claims description 12
- 238000007664 blowing Methods 0.000 claims abstract description 96
- 230000007246 mechanism Effects 0.000 claims abstract description 93
- 239000000779 smoke Substances 0.000 claims abstract description 69
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000003546 flue gas Substances 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims description 15
- 230000001276 controlling effect Effects 0.000 claims description 11
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 claims 1
- 239000003517 fume Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
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Abstract
The invention belongs to the technical field of automatic adjustment of the wind direction of incineration flue gas, and particularly relates to a self-adaptive secondary air adjusting system of a reverse pushing grate furnace and a working method thereof, wherein the system comprises the following steps: the upper side of the reverse pushing fire grate is communicated with a circulating channel; the two sides of the circulating channel are respectively provided with a front arch and a rear arch so as to divide the circulating channel into a lower circulating area and an upper circulating area; the side wall of the circulating channel is provided with a lower blowing mechanism and an upper blowing mechanism which are controlled by the control module so as to respectively enable smoke entering the lower circulating area and the upper circulating area to form vortex for mixing; and the control module is suitable for respectively controlling the lower air blowing mechanism and the upper air blowing mechanism to adjust the air blowing angle according to the smoke emission in the reverse pushing fire grate so as to adjust the residence time of the smoke in the circulating channel by changing the vortex size, and the front arch and the rear arch of the system are mutually cooperated and mutually cooperated with the lower air blowing mechanism and the upper air blowing mechanism to guide the flow direction of the smoke.
Description
Technical Field
The invention belongs to the technical field of automatic adjustment of the wind direction of incineration flue gas, and particularly relates to a self-adaptive secondary air adjusting system of a reverse pushing grate furnace and a working method thereof.
Background
When the solid waste is burned in the reverse pushing fire grate, smoke is generated, and the smoke is directly discharged out of the reverse pushing fire grate along with the pipeline, so that the environment is polluted.
At present, in order to reduce the pollution of fume emission, the fume generated needs to be treated, the existing treatment technology is to treat the fume in the fume exhaust pipeline by arranging the fume exhaust pipeline, and the fume exhaust pipeline is changed to bend the pipeline so as to increase the time of the fume in the fume exhaust pipeline, but in the mode, when the fume emission amount is increased, the fume can rapidly come out of the pipeline, the residence time of the fume exhaust pipeline cannot be adaptively adjusted, the treatment effect of the fume exhaust pipeline is reduced, and the environment is influenced after the fume exhaust pipeline is discharged.
Therefore, a self-adaptive secondary air adjusting system of a reverse pushing grate furnace and a working method thereof are needed to be designed.
Disclosure of Invention
The invention aims to provide a self-adaptive secondary air regulating system of a reverse pushing grate furnace and a working method thereof.
In order to solve the technical problems, the invention provides a self-adaptive secondary air regulating system of a reverse pushing grate furnace, which comprises: the upper side of the reverse pushing fire grate is communicated with a circulating channel; the two sides of the circulating channel are respectively provided with a front arch and a rear arch so as to divide the circulating channel into a lower circulating area and an upper circulating area; the side wall of the circulating channel is provided with a lower blowing mechanism and an upper blowing mechanism which are controlled by the control module so as to respectively enable smoke entering the lower circulating area and the upper circulating area to form vortex for mixing; and the control module is suitable for respectively controlling the lower air blowing mechanism and the upper air blowing mechanism to adjust the air blowing angle according to the exhaust amount of the flue gas in the reverse pushing grate so as to adjust the residence time of the flue gas in the circulating channel by changing the size of the vortex.
The invention also provides a working method of the self-adaptive secondary air regulating system of the reverse pushing grate furnace, which comprises the following steps: the front arch and the rear arch are respectively arranged on two sides of the circulating channel to divide the circulating channel into a lower circulating area and an upper circulating area; the smoke entering the lower circulation area and the upper circulation area is respectively formed into vortex by the lower blowing mechanism and the upper blowing mechanism to be mixed; the control module respectively controls the lower air blowing mechanism and the upper air blowing mechanism to adjust the air blowing angle through the smoke discharge amount in the reverse pushing fire grate, so as to adjust the residence time of the smoke in the circulating channel through changing the size of the vortex.
The invention has the beneficial effects that the front arch and the rear arch are mutually cooperated, and are mutually cooperated with the lower blowing mechanism and the upper blowing mechanism to guide the flow direction of the smoke, so that the smoke forms vortex in the lower circulation area and then enters the upper circulation area to form vortex, and finally is discharged out of the circulation channel, the way can increase the residence time of the smoke in the circulation channel, and the smoke is fully mixed in the flowing process of the smoke in the circulation channel; meanwhile, the control module can acquire the smoke emission in the reverse pushing fire grate through the sensor, and control the lower air blowing mechanism and the upper air blowing mechanism to adjust respective air blowing angles according to the smoke emission, so that the size of vortex formed by smoke is changed (namely the moving path of the smoke is changed); because the power of the reverse pushing fire grate is constant, when the discharge amount of the flue gas is low, the treatment time of the flue gas is not required to be long, so that the size of the vortex is reduced to reduce the residence time of the flue gas in the circulating channel, and when the discharge amount of the flue gas is large, the size of the vortex is increased to increase the residence time of the flue gas in the circulating channel.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the adaptive overgrate air regulation system of the reverse push grate furnace of the present invention;
FIG. 2 is a schematic view of the structure of the circulation channel of the present invention;
FIG. 3 is a schematic diagram of a blowing structure of the blowing mechanism when the smoke emission amount is large;
fig. 4 is a schematic diagram of a blowing structure of the blowing mechanism when the smoke emission amount is small.
In the figure:
1. pushing the fire grate reversely; 2. a circulation passage; 21. an upper section of the front arch; 22. a front arch lower section; 23. an upper section of the rear arch; 24. a rear arch middle section; 25. a rear arch lower section; 26. a rear arch end section; 3. a lower blowing mechanism; 31. the lower layer is provided with an upper exhaust device; 32. a lower layer lower exhaust device; 4. an upper blowing mechanism; 41. the upper layer is provided with an air exhauster; 42. and an upper layer lower exhaust device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the present embodiment provides a self-adaptive secondary air adjusting system of a reverse push grate furnace, which includes: the upper side of the reverse pushing fire grate 1 is communicated with a circulating channel 2; wherein, the two sides of the circulating channel 2 are respectively provided with a front arch and a rear arch so as to divide the circulating channel 2 into a lower circulating area and an upper circulating area; the side wall of the circulating channel 2 is provided with a lower blowing mechanism 3 and an upper blowing mechanism 4 which are controlled by a control module so as to respectively enable smoke entering a lower circulating area and an upper circulating area to form vortex for mixing; and the control module is suitable for respectively controlling the lower air blowing mechanism 3 and the upper air blowing mechanism 4 to adjust the air blowing angle according to the exhaust amount of the flue gas in the reverse pushing grate 1 so as to adjust the residence time of the flue gas in the circulating channel 2 by changing the size of the vortex.
In this embodiment, specifically, the front arch and the rear arch of the circulation channel 2 cooperate with each other, and cooperate with the lower air blowing mechanism 3 and the upper air blowing mechanism 4 to guide the flow direction of the flue gas (the air generated by the lower air blowing mechanism 3/the upper air blowing mechanism 4 is secondary air), so that the flue gas forms a vortex in the lower circulation area, enters the upper circulation area to form a vortex, and finally is discharged out of the circulation channel 2, so that the residence time of the flue gas in the circulation channel 2 can be increased, and the flue gas can be fully mixed in the flowing process of the circulation channel 2; meanwhile, the control module can acquire the smoke emission in the reverse pushing grate 1 through a sensor, and control the lower air blowing mechanism 3 and the upper air blowing mechanism 4 to adjust respective air blowing angles according to the smoke emission, so that the size of vortex formed by smoke is changed (namely the moving path of the smoke is changed); because the power of the reverse pushing fire grate 1 is constant, when the discharge amount of the smoke is low, the treatment time of the smoke is not required to be long, so that the retention time of the smoke in the circulating channel 2 is reduced by reducing the size of the vortex, and when the discharge amount of the smoke is large, the retention time of the smoke in the circulating channel 2 is increased by increasing the size of the vortex.
As shown in fig. 2, in the present embodiment, the front arch divides one side wall of the circulation passage 2 into: a front arch upper section 21 and a front arch lower section 22; the rear arch divides the other side wall of the circulation channel 2 into: a rear arch upper section 23, a rear arch middle section 24, a rear arch lower section 25 and a rear arch end section 26; the extension line of the rear arch end section 26, the extension line of the rear arch lower section 25 and the front arch lower section 22 enclose the lower circulation zone; the extension of the front arch lower section 22, the extension of the rear arch lower section 25, and the rear arch middle section 24 enclose the upper circulation zone.
In the present embodiment, specifically, the flue gas on the reverse pushing grate 1 is pressed against the front arch lower section 22 under the action of the rear arch end section 26 and the rear arch lower section 25, is pressed against the rear arch middle section 24 under the action of the front arch lower section 22, and is finally discharged out of the circulation channel 2 under the action of the front arch and the rear arch; the lower blowing mechanism 3 forms a tangential circle in the lower circulation area, so that the vortex degree of the smoke can be enhanced, the residence time of the smoke in the circulation channel 2 is increased, the upper blowing mechanism 4 is arranged to form a tangential circle in the upper circulation area, the blowing effect is enhanced, the vortex degree of the smoke is stronger, the residence time is longer, and meanwhile, the residence time of the smoke is adjusted by changing the blowing angle.
As shown in fig. 3, in the present embodiment, the down-blowing mechanism 3 includes: a lower upper air exhauster 31 and a lower air exhauster 32; wherein the lower upper air exhauster 31 and the lower air exhauster 32 are respectively arranged on the front arch lower section 22 and the rear arch lower section 25 to blow the flue gas entering the lower circulation zone to form vortex and enter the upper circulation zone.
In this embodiment, the upper blowing mechanism 4 includes: an upper layer upper air exhauster 41 and an upper layer lower air exhauster 42; wherein the upper layer upper air exhauster 41 and the upper layer lower air exhauster 42 are respectively arranged on the front arch upper section 21 and the rear arch middle section 24 to blow the flue gas entering the upper circulation zone so as to form vortex.
In this embodiment, specifically, the lower-layer air exhauster 32 is disposed on the rear-arch lower-section 25, and cooperates with the lower-layer upper-layer air exhauster 31 on the front-arch lower-section 22 to form a virtual tangential circle for the flue gas entering the lower circulation zone, so as to guide the flow direction of the flue gas, and similarly, the upper-layer air exhauster 41 and the upper-layer lower-layer air exhauster 42 form a virtual tangential circle for the flue gas entering the upper circulation zone.
As shown in fig. 4, in the present embodiment, the lower upper air exhauster 31, the lower air exhauster 32, the upper air exhauster 41, and the upper lower air exhauster 42 are respectively connected with the side wall of the circulation channel 2 through corresponding driving mechanisms; a detection mechanism is arranged in the reverse pushing grate 1 to obtain the discharge amount of the flue gas; the control module is respectively and electrically connected with the detection mechanism and each driving mechanism, and is suitable for controlling the corresponding driving mechanism to work according to the smoke emission amount obtained by the detection mechanism so as to adjust the blowing angle of corresponding exhaust air.
In this embodiment, specifically, when the amount of smoke emission is reduced, the control module controls each driving mechanism to drive the corresponding exhaust air to adjust the blowing angle, so as to reduce the virtual tangent circle, and reduce the flow path of the smoke; when the smoke emission is increased, the control module controls each driving mechanism to drive the corresponding air exhaust to adjust the air blowing angle so as to increase the virtual tangent circle, so that the flow path of the smoke is increased, and the residence time of the smoke is prolonged.
The embodiment also provides a working method of the self-adaptive secondary air regulating system of the reverse pushing grate furnace, which comprises the following steps: the circulating channel 2 is divided into a lower circulating area and an upper circulating area by arranging a front arch and a rear arch on two sides of the circulating channel 2 respectively; the smoke entering the lower circulation area and the upper circulation area are respectively mixed by a lower blowing mechanism 3 and an upper blowing mechanism 4 to form vortex; the control module respectively controls the lower air blowing mechanism 3 and the upper air blowing mechanism 4 to adjust the air blowing angle through the smoke discharge amount in the reverse pushing fire grate 1 so as to adjust the residence time of the smoke in the circulating channel 2 through changing the vortex size.
In this embodiment, the method for controlling the lower air blowing mechanism 3 and the upper air blowing mechanism 4 by the control module through the exhaust amount of the flue gas in the reverse pushing grate 1 to adjust the air blowing angle respectively, so as to adjust the residence time of the flue gas in the circulation channel 2 by changing the size of the vortex comprises: the method comprises the steps of obtaining the smoke emission in the reverse pushing grate 1 through a detection mechanism; and the lower air blowing mechanism 3 and the upper air blowing mechanism 4 are controlled to adjust the air blowing angles according to the smoke emission amount obtained by the detection mechanism, namely, the lower-layer lower air exhauster 32 in the lower air blowing mechanism 3 and the upper-layer upper air exhauster 41 in the upper air blowing mechanism 4 are respectively controlled to adjust the air blowing angles according to the smoke emission amount obtained by the detection mechanism.
In this embodiment, the method for controlling the lower-layer lower air exhauster 32 in the lower air blowing mechanism 3 and the upper-layer upper air exhauster 41 in the upper air blowing mechanism 4 to adjust the air blowing angle according to the flue gas emission amount obtained by the detection mechanism includes:
t is the residence time (in seconds) of the flue gas in the circulating channel, t 1 For the residence time (in seconds) of the flue gas in the lower circulation zone,t 2 the residence time (in seconds) of the flue gas in the upper circulation zone is v, the jet speed (in m/s), alpha, the jet angle of the lower-layer air exhauster 32, beta, the jet angle of the upper-layer air exhauster 41, k, the distance (in meters) between the tangent position of two vortex flows and the jet opening of the lower-layer air exhauster 32, h, the distance (in meters) between the tangent position of two vortex flows and the jet opening of the upper-layer air exhauster 41, and the value range of alpha is 10-40 degrees, and the value range of beta is 10-40 degrees.
In the embodiment, specifically, the tangent point of the two vortex flows is fixed, namely k and h are constants, the value range of v is 1-4 m/s, the air injection speed is reduced when the angle of alpha and beta is increased, and the air injection speed is increased when the angle of alpha and beta is reduced; in the working process, the detection mechanism is used for detecting the smoke emission in the reverse pushing fire grate 1, and the residence time of the smoke in the circulating channel 2 is regulated according to the acquired smoke emission data, and optionally, when the concentration of the entering smoke is large, the vortex is increased by reducing the angles of alpha and beta, and meanwhile, the air injection speed v of the air exhauster is reduced, so that the residence time of the smoke in the circulating channel 2 is improved. For example, when the concentration of the flue gas far exceeds the set concentration threshold, at this time, the angles of alpha and beta are adjusted to 10 degrees, and at this time, the air injection speed v of the air exhauster is correspondingly adjusted to 1m/s, so that the time of the flue gas in the circulating channel 2 is longest, and the residence time of the flue gas is increased to enable the flue gas to slowly exit the circulating channel 2. When the concentration of the flue gas is far lower than the set concentration threshold value, at the moment, the angles of alpha and beta are adjusted to 40 degrees, and at the moment, the air injection speed v of the air exhauster is correspondingly adjusted to 4m/s, so that the time of the flue gas in the circulating channel 2 is shortest, the residence time of the flue gas is reduced, and the flue gas is discharged out of the circulating channel 2 faster.
For the specific structure and implementation process of the self-adaptive secondary air adjusting system of the reverse pushing grate furnace, refer to the related discussion in the above embodiment, and are not repeated here.
In summary, the front arch and the rear arch of the circulation channel 2 of the self-adaptive secondary air regulation system of the reverse pushing grate furnace cooperate with each other and guide the flow direction of the flue gas together with the lower air blowing mechanism 3 and the upper air blowing mechanism 4, so that the flue gas forms vortex in the lower circulation zone and enters the upper circulation zone to form vortex, and finally is discharged out of the circulation channel 2, in this way, the residence time of the flue gas in the circulation channel 2 can be prolonged, and the flue gas is fully mixed in the flowing process of the circulation channel 2; meanwhile, the control module can acquire the smoke emission in the reverse pushing grate 1 through a sensor, and control the lower air blowing mechanism 3 and the upper air blowing mechanism 4 to adjust respective air blowing angles according to the smoke emission, so that the size of vortex formed by smoke is changed (namely the moving path of the smoke is changed); because the power of the reverse pushing fire grate 1 is constant, when the discharge amount of the smoke is low, the treatment time of the smoke is not required to be long, so that the retention time of the smoke in the circulating channel 2 is reduced by reducing the size of the vortex, and when the discharge amount of the smoke is large, the retention time of the smoke in the circulating channel 2 is increased by increasing the size of the vortex.
In the description of embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. An adaptive secondary air regulating system of a reverse push grate furnace, which is characterized by comprising:
the upper side of the reverse pushing fire grate is communicated with a circulating channel; wherein the method comprises the steps of
The two sides of the circulating channel are respectively provided with a front arch and a rear arch so as to divide the circulating channel into a lower circulating area and an upper circulating area;
the side wall of the circulating channel is provided with a lower blowing mechanism and an upper blowing mechanism which are controlled by the control module so as to respectively enable smoke entering the lower circulating area and the upper circulating area to form vortex for mixing; and
the control module is suitable for respectively controlling the lower air blowing mechanism and the upper air blowing mechanism to adjust the air blowing angle according to the exhaust amount of the flue gas in the reverse pushing grate so as to adjust the residence time of the flue gas in the circulating channel by changing the size of the vortex.
2. The self-adaptive secondary air regulating system of the reverse push grate furnace according to claim 1, wherein,
the front arch divides one side wall of the circulating channel into: a front arch upper section and a front arch lower section;
the rear arch divides the other side wall of the circulating channel into: a rear arch upper section, a rear arch middle section, a rear arch lower section and a rear arch end section;
the extension line of the rear arch tail section, the extension line of the rear arch lower section and the front arch lower section enclose the lower circulation area;
and the upper circulation area is surrounded by the extension line of the lower section of the front arch, the extension line of the lower section of the rear arch and the middle section of the rear arch.
3. The self-adaptive secondary air regulating system of the reverse push grate furnace according to claim 2, wherein,
the lower blowing mechanism includes: an upper lower layer exhaust fan and a lower layer exhaust fan; wherein the method comprises the steps of
The lower layer upper exhaust device and the lower layer lower exhaust device are respectively arranged on the front arch lower section and the rear arch lower section so as to blow the flue gas entering the lower circulation area to form vortex and enter the upper circulation area.
4. The self-adaptive secondary air regulating system of the reverse push grate furnace according to claim 3,
the upper blowing mechanism comprises: an upper layer upper air exhauster and an upper layer lower air exhauster; wherein the method comprises the steps of
The upper layer upper air exhauster and the upper layer lower air exhauster are respectively arranged on the upper section of the front arch and the middle section of the rear arch so as to blow the flue gas entering the upper circulation area to form vortex.
5. The self-adaptive secondary air regulating system of the reverse push grate furnace according to claim 4, wherein,
the lower layer lower exhaust device and the upper layer upper exhaust device are respectively connected with the side wall of the circulating channel through corresponding driving mechanisms;
a detection mechanism is arranged in the reverse pushing grate to obtain the smoke emission;
the control module is respectively and electrically connected with the detection mechanism and each driving mechanism, and is suitable for controlling the corresponding driving mechanism to work according to the smoke emission amount obtained by the detection mechanism so as to adjust the blowing angle of corresponding exhaust air.
6. A method of operation of an adaptive overgrate air conditioning system employing a reverse push grate furnace as claimed in any one of claims 1 to 5, comprising:
the front arch and the rear arch are respectively arranged on two sides of the circulating channel to divide the circulating channel into a lower circulating area and an upper circulating area;
the smoke entering the lower circulation area and the upper circulation area is respectively formed into vortex by the lower blowing mechanism and the upper blowing mechanism to be mixed;
the control module respectively controls the lower air blowing mechanism and the upper air blowing mechanism to adjust the air blowing angle through the smoke discharge amount in the reverse pushing fire grate, so as to adjust the residence time of the smoke in the circulating channel through changing the size of the vortex.
7. The method of claim 6, wherein,
the method for controlling the air blowing angle of the lower air blowing mechanism and the upper air blowing mechanism to adjust the residence time of the flue gas in the circulating channel by changing the size of vortex by the control module through controlling the flue gas discharge amount in the reverse pushing grate comprises the following steps:
the method comprises the steps of obtaining the smoke emission in a reverse pushing fire grate through a detection mechanism; and
the lower air blowing mechanism and the upper air blowing mechanism are controlled to adjust the air blowing angle according to the smoke emission amount obtained by the detection mechanism, namely
And respectively controlling a lower-layer lower air exhauster in the lower air blowing mechanism and an upper-layer upper air exhauster in the upper air blowing mechanism to adjust the air blowing angle according to the flue gas emission amount acquired by the detection mechanism.
8. The method of claim 7, wherein,
the method for respectively controlling the lower-layer lower air exhauster in the lower air blowing mechanism and the upper-layer upper air exhauster in the upper air blowing mechanism to adjust the air blowing angle according to the flue gas emission acquired by the detection mechanism comprises the following steps of:
t is the residence time of the flue gas in the circulating channel, t 1
For the stay of the flue gas in the lower circulation zoneTime t 2
The residence time of the flue gas in the upper circulation zone is v, the jet speed of each air exhauster, alpha is the jet angle of the lower air exhauster, beta is the jet angle of the upper air exhauster, k is the distance between the tangent position of two vortex flows and the jet opening of the lower air exhauster, h is the distance between the tangent position of two vortex flows and the jet opening of the upper air exhauster, the value range of alpha is 10-40 degrees, and the value range of beta is 10-40 degrees.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07103440A (en) * | 1993-10-07 | 1995-04-18 | Sanki Eng Co Ltd | Garbage combustion method of refuse incinerator and device thereof |
| CN102913898A (en) * | 2012-10-16 | 2013-02-06 | 东方电气集团东方锅炉股份有限公司 | Over-fire air distribution manner in front and back wall opposed firing boiler |
| CN202751946U (en) * | 2012-09-27 | 2013-02-27 | 重庆光泽环保科技有限公司 | Cement production line denitration ammonia spraying mechanism |
| CN102980194A (en) * | 2012-11-29 | 2013-03-20 | 华南理工大学 | Method for garbage low-nitrogen and low-dioxin grate incineration and device of method for garbage low-nitrogen and low-dioxin grate incineration |
| CN105114944A (en) * | 2015-09-17 | 2015-12-02 | 西安西热锅炉环保工程有限公司 | Air staged-combustion vertical and horizontal combined arrangement type over fire air system for tangential boiler |
| WO2016201740A1 (en) * | 2015-06-19 | 2016-12-22 | 裴韩佶 | Flue gas recirculation combustion apparatus |
| CN108317520A (en) * | 2017-12-21 | 2018-07-24 | 北方重工集团有限公司 | A kind of garbage incinerator double-layer vortex secondary air system |
| CN109340810A (en) * | 2018-11-22 | 2019-02-15 | 西安交通大学 | A kind of secondary air distribution structure reducing layer burner unburned carbon in flue dust |
| CN110925774A (en) * | 2019-12-14 | 2020-03-27 | 上海康恒环境股份有限公司 | Strong turbulence combustion system for reducing CO and NOx |
| CN214120046U (en) * | 2020-12-23 | 2021-09-03 | 上海康恒环境股份有限公司 | Double-vortex secondary air arrangement device of garbage incinerator |
| CN216047703U (en) * | 2021-11-02 | 2022-03-15 | 盐城热电有限责任公司 | Secondary air system of circulating fluidized bed domestic garbage incinerator |
| CN218565413U (en) * | 2022-05-24 | 2023-03-03 | 华能沁北发电有限责任公司 | Opposed swirl combustion boiler with over-fire air arranged in tangential circle |
-
2023
- 2023-04-18 CN CN202310409495.2A patent/CN116146991A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07103440A (en) * | 1993-10-07 | 1995-04-18 | Sanki Eng Co Ltd | Garbage combustion method of refuse incinerator and device thereof |
| CN202751946U (en) * | 2012-09-27 | 2013-02-27 | 重庆光泽环保科技有限公司 | Cement production line denitration ammonia spraying mechanism |
| CN102913898A (en) * | 2012-10-16 | 2013-02-06 | 东方电气集团东方锅炉股份有限公司 | Over-fire air distribution manner in front and back wall opposed firing boiler |
| CN102980194A (en) * | 2012-11-29 | 2013-03-20 | 华南理工大学 | Method for garbage low-nitrogen and low-dioxin grate incineration and device of method for garbage low-nitrogen and low-dioxin grate incineration |
| WO2016201740A1 (en) * | 2015-06-19 | 2016-12-22 | 裴韩佶 | Flue gas recirculation combustion apparatus |
| CN105114944A (en) * | 2015-09-17 | 2015-12-02 | 西安西热锅炉环保工程有限公司 | Air staged-combustion vertical and horizontal combined arrangement type over fire air system for tangential boiler |
| CN108317520A (en) * | 2017-12-21 | 2018-07-24 | 北方重工集团有限公司 | A kind of garbage incinerator double-layer vortex secondary air system |
| CN109340810A (en) * | 2018-11-22 | 2019-02-15 | 西安交通大学 | A kind of secondary air distribution structure reducing layer burner unburned carbon in flue dust |
| CN110925774A (en) * | 2019-12-14 | 2020-03-27 | 上海康恒环境股份有限公司 | Strong turbulence combustion system for reducing CO and NOx |
| CN214120046U (en) * | 2020-12-23 | 2021-09-03 | 上海康恒环境股份有限公司 | Double-vortex secondary air arrangement device of garbage incinerator |
| CN216047703U (en) * | 2021-11-02 | 2022-03-15 | 盐城热电有限责任公司 | Secondary air system of circulating fluidized bed domestic garbage incinerator |
| CN218565413U (en) * | 2022-05-24 | 2023-03-03 | 华能沁北发电有限责任公司 | Opposed swirl combustion boiler with over-fire air arranged in tangential circle |
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