CN113758288B - Crude flue gas intermingling cold wind type temperature control adjusting device and adjusting method thereof - Google Patents
Crude flue gas intermingling cold wind type temperature control adjusting device and adjusting method thereof Download PDFInfo
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- CN113758288B CN113758288B CN202111000545.9A CN202111000545A CN113758288B CN 113758288 B CN113758288 B CN 113758288B CN 202111000545 A CN202111000545 A CN 202111000545A CN 113758288 B CN113758288 B CN 113758288B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical Kinetics & Catalysis (AREA)
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
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Abstract
The invention discloses a crude flue gas intermingling cold wind type temperature control adjusting device and an adjusting method thereof, belonging to the field of metallurgical green production. The invention relates to a temperature control and regulation device for mixing cold air between crude flue gas, which comprises a regulation box body, a flue gas input pipe and a flue gas output pipe, wherein the flue gas input pipe and the flue gas output pipe are respectively provided with openings on the box walls at two sides of the regulation box body and are fixedly connected; the regulating box body is a intermingled cold air type box body. According to the invention, cold air is added between the adjusting box bodies, so that the direct cold air mixing amount is greatly reduced, strong disturbance of the cold air on flue gas is avoided, the pressure of a flue gas conveying pipeline and a system is stabilized, the height of a flue gas output pipe on the box wall is higher than that of a flue gas input pipe, a flow channel of high-temperature flue gas from bottom to top is realized, the matching of a production system and a flue gas purification system is fully cooperated, the pressure stability of the whole production system is ensured, the product quality is improved, the subsequent flue gas purification treatment amount and the flue gas discharge amount are reduced, and the fan load and the power consumption are reduced.
Description
Technical Field
The invention relates to the technical field of metallurgical green production, in particular to a crude flue gas intermingling cold air type temperature control and regulation device and a regulation method thereof.
Background
With the continuous upgrading of green production standards, ultra-clean emission of flue gas generated by sintering, pelletizing, raw material drying, heating furnaces and the like in metallurgical production needs to be realized, so that flue gas treatment is upgraded from a single short-flow treatment mode (electric precipitation, desulfurization, denitration and cloth bag dust removal) to a long-flow treatment mode (electric precipitation, desulfurization, denitration and cloth bag dust removal). In order to ensure safe, stable and efficient operation of a bag-type dust collector and a desulfurization and denitrification device and have clear requirements on inlet flue gas temperature, a common method is to install a cold air valve on a flue gas conveying pipeline and mix energy air into the pipeline through the cold air valve so as to reduce the temperature of the flue gas. However, this method has certain disadvantages, because the cold air is directly mixed into the pipeline, the air flow of the cold air disturbs the flue gas in the pipeline, so that the pressure fluctuation of the production system is caused, the product quality is reduced, the subsequent flue gas purification treatment amount and the flue gas discharge amount are increased, and the fan load and the power consumption are increased. The pressure of the pipeline fluctuates and the temperature of the flue gas changes dramatically, all of which adversely affect the subsequent flue gas treatment.
Through retrieval, the application with the Chinese patent publication number of CN110319452A, published as 2019-10-11, discloses a boiler flue gas temperature regulating device and a method, wherein the boiler comprises an installation opening, an air inlet and an air outlet, and the boiler flue gas temperature regulating device comprises: the guide heat exchange plate is connected in the mounting port of the boiler in a penetrating way and is positioned between the air inlet and the air outlet; which can move reciprocally in the height direction and/or width direction of the boiler; it can exchange heat with the flue gas; the first temperature sensor is used for monitoring the temperature of the flue gas at one side of the gas outlet, forming a first flue gas temperature signal and sending the first flue gas temperature signal; the controller, water conservancy diversion heat transfer board and first temperature sensor all are connected with the controller, and the controller is used for receiving first flue gas temperature signal to with predetermineeing temperature signal comparison, and according to the reciprocating motion of comparative result control water conservancy diversion heat transfer board. Boiler flue gas temperature regulation apparatus includes: the invention provides a boiler flue gas temperature adjusting device and method, which solve the problem that the flue gas temperature of a boiler for treating hazardous wastes cannot be adjusted and avoid the large fluctuation of the flue gas temperature. This application is passed through water conservancy diversion heat transfer board to the flue gas heat transfer, and heat exchange efficiency is relatively poor, untimely to the higher flue gas heat transfer of temperature.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the defect that the pressure fluctuation of a production system is easily caused by directly mixing cold air in a pipeline before metallurgical rough flue gas treatment in the prior art, the invention provides a temperature control and regulation device and a regulation method thereof for mixing cold air between rough flue gases.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention relates to a crude flue gas intermingling cold wind type temperature control adjusting device, which comprises an adjusting box body, a flue gas input pipe and a flue gas output pipe, wherein the flue gas input pipe and the flue gas output pipe are respectively provided with openings on the box walls at two sides and are fixedly connected; the regulating box body is a indirectly-doped cold air type box body, the indirectly-doped cold air is added in the regulating box body, the direct cold air doping amount is greatly reduced, strong disturbance of the cold air on a flue gas system is avoided, the pressure of a flue gas conveying pipeline is stabilized, the height of a flue gas output pipe on the box wall is higher than that of a flue gas input pipe, a flowing channel of high-temperature flue gas from bottom to top is realized, the matching of a production system and a flue gas purification system is fully cooperated, the pressure stability of the whole production system is ensured, the product quality is improved, the subsequent flue gas purification treatment amount and the flue gas discharge amount are reduced, and the load and the power consumption of a fan are reduced.
Furthermore, a temperature adjusting component is vertically and fixedly connected in the adjusting box body; the temperature adjusting assembly comprises a temperature adjusting box, the upper part of the temperature adjusting box is connected with an air outlet pipe, the air outlet pipe extends out of the adjusting box body and then is communicated with the atmosphere, and the outer wall of the air outlet pipe is fixedly connected to the top wall of the adjusting box body; the both sides of temperature regulating box lower part are external intake pipe respectively, and this intake pipe stretches out and will the inside and the atmosphere intercommunication of temperature regulating box behind the regulation box, and the outer wall fixed connection of intake pipe is in the lateral wall of regulation box, and the outlet duct is under last intake pipe, and is unanimous by supreme big direction of flow with high temperature flue gas down, has realized being applicable to when carrying out the preliminary treatment to the flue gas between production system and flue gas purification treatment's pipeline, and the heat exchange process of cold air is mixed with the internal indirection of regulation box to high temperature flue gas.
Furthermore, the temperature adjusting components are two or more than two which have different heights and are alternately distributed up and down, so that the high-temperature flue gas can flow in an inverted S shape in the adjusting box body, and the heat exchange distance between the high-temperature flue gas and the cold air indirectly blended in the adjusting box body is increased.
Furthermore, the high-temperature flue gas flows in an inverted S shape in the regulating box body, and meanwhile, part of large-particle dust can be collected, the load of subsequent flue gas purification treatment is reduced, and the abrasion of the fan impeller is reduced.
Furthermore, the temperature adjusting components are distributed in the adjusting box body at equal intervals, so that the whole heat exchange process is uniformly connected, the violent exchange process is avoided, strong disturbance of cold air on the flue gas is further avoided, and the pressure of the flue gas conveying pipeline is stabilized.
Furthermore, an adjustable air door is arranged at the opening of the air inlet pipe, the size of the air door can be adjusted according to the temperature of the high-temperature flue gas, and therefore the mixing amount of cold air in a room is adjusted.
Furthermore, the air door includes shutter plate and electric putter, shutter plate top-down evenly distributed is a plurality of, and the one end of shutter plate is connected along rotating with the orificial left side of intake pipe through the round pin axle, and the other end of shutter plate is connected along rotating with the orificial right side of intake pipe through the round pin axle, electric putter connects in intake pipe mouth of pipe lateral surface, and electric putter's telescopic link rotates with the one end of rocking arm to be connected, and the other end of rocking arm is connected in the round pin axle of shutter plate, and accessible control electric putter can realize mixing the size of cold wind volume between the regulation, need not artifical regulation on the spot, improves automation and the convenience of operation.
Furthermore, a W-shaped guide plate is connected between the front inner wall and the rear inner wall of the temperature regulating box, so that the air can be prevented from generating circuitous disturbance in the temperature regulating box, the flow velocity of the air is improved, and meanwhile, the temperature regulating box plays a role of a reinforcing rib, and the mechanical strength of the temperature regulating box is enhanced.
Furthermore, the front outer wall and the rear outer wall of the temperature regulating box are both connected with heat exchange fins, so that the heat exchange area of the high-temperature flue gas and the indirect cold air mixed in the regulating box is increased.
Furthermore, the heat exchange plates and the guide plates are uniformly distributed, so that the uniformity and the stability of heat exchange are further improved.
According to the adjusting method of the crude flue gas intermingling cold air type temperature control adjusting device, flue gas of a metallurgical production system enters the adjusting box body through the flue gas input pipe, and is cooled through cold air circulating in the temperature adjusting box, so that indirect cold air intermingling is realized.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) The invention discloses a crude flue gas intermingling cold air type temperature control and regulation device, which overcomes the defect that flue gas of the whole metallurgical production system completely reduces the temperature of the flue gas by directly intermingling cold air into a pipeline, pre-treats the flue gas between the production system and a conveying pipeline for flue gas purification treatment, regulates the temperature of the flue gas by utilizing natural atmosphere, increases the intermingling cold air, greatly reduces the direct cold air intermingling amount, avoids strong disturbance of the cold air to the flue gas, stabilizes the pressure of the flue gas conveying pipeline, fully coordinates the matching of the production system and the flue gas purification system, ensures the stable pressure of the production system, improves the product quality, reduces the subsequent flue gas purification treatment amount and the flue gas discharge amount, and reduces the load of a fan and the power consumption. Green production is further guaranteed, production cost is saved, and production efficiency is improved;
(2) According to the device for controlling and adjusting the temperature of the crude flue gas mixed with cold air, the guide plates are arranged in a W shape, so that the disturbance of atmosphere in the temperature adjusting box can be prevented, the flow rate of the atmosphere is improved, and meanwhile, the mechanical strength of the temperature adjusting box is enhanced; the arrangement of the heat exchange fins is beneficial to the full heat exchange between the flue gas and the temperature adjusting box;
(3) According to the adjusting method of the crude flue gas intermingling cold air type temperature control adjusting device, the temperature adjusting box is subjected to heat exchange of flue gas, the atmosphere in the temperature adjusting box is heated to form a typical chimney effect, at the moment, the atmosphere in the temperature adjusting box rapidly rises and is discharged outwards through the air outlet pipe, the outside atmosphere enters the temperature adjusting box through the air inlet pipe in an accelerating mode, so that atmospheric convection is formed, the flowing atmosphere is subjected to heat exchange with the flue gas through the temperature adjusting box to cool the flue gas, namely, the flue gas temperature is higher, the chimney effect is more obvious, the temperature adjusting effect on the flue gas is better, the complementary synergistic effect is achieved, the air inlet amount can be adjusted through the air door, the temperature adjusting range is controlled, and the effect of avoiding strong disturbance of cold air on the flue gas temperature is achieved.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the partial cross-sectional structure of FIG. 1;
FIG. 3 isbase:Sub>A schematic sectional view A-A of FIG. 2;
FIG. 4 is a schematic view of the partial cross-sectional structure of FIG. 3;
FIG. 5 is a schematic view of the flow of flue gas in the present invention;
fig. 6 is a schematic view of the flow of atmospheric air in the present invention.
The reference numerals in the schematic drawings illustrate: 1. adjusting the box body; 2. a temperature regulating component; 3. a flue gas input pipe; 4. a flue gas output pipe; 21. a temperature regulating box; 22. an air outlet pipe; 23. an air inlet pipe; 24. a damper; 25. a heat exchanger fin; 26. a baffle; 241. louver blades; 242. an electric push rod; 243. a telescopic rod.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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.
The present invention will be further described with reference to the following examples.
Example 1
As shown in fig. 1, the temperature control and regulation device for mixing and cooling crude flue gas in a crude flue gas chamber of the present embodiment includes a regulation box 1, and a flue gas input pipe 3 and a flue gas output pipe 4 which are respectively opened at two side box walls and fixedly connected to each other; the regulating box body 1 is a cold air intermingled box body.
In this embodiment practical application, the setting is carried out the preliminary treatment to the flue gas between metallurgical production system and flue gas purification treatment's pipeline, through mixing cold wind between adjusting box 1 increase, reduce the direct cold wind volume of mixing in a large number, avoid cold wind to produce powerful disturbance to the flue gas, stabilize flue gas pipeline's pressure, flue gas output tube 4 is higher than flue gas input tube 3 at the height of tank wall, realize the high temperature flue gas from lower to upper flow path, fully cooperate production system and flue gas purification system's matching, ensured whole production system pressure stability, promote product quality, reduce follow-up flue gas purification throughput and flue gas emission simultaneously, reduce fan load and power consumption.
The realization of intermingling cold air is realized by vertically and fixedly connecting a temperature adjusting component 2 in an adjusting box body 1 as shown in figures 2 and 3; the temperature adjusting component 2 comprises a temperature adjusting box 21, the upper part of the temperature adjusting box 21 is connected with an air outlet pipe 22, the air outlet pipe 22 extends out of the adjusting box body 1 and then is communicated with the atmosphere, and the outer wall of the air outlet pipe 22 is fixedly connected to the top wall of the adjusting box body 1; the both sides of regulating temperature box 21 lower part are external intake pipe 23 respectively, this intake pipe 23 stretches out behind the regulating box 1 with the inside and the atmosphere intercommunication of regulating temperature box 21, the outer wall fixed connection of intake pipe 23 is in the lateral wall of regulating box 1, outlet duct 22 is under last intake pipe 23, it is unanimous with the big direction of high temperature flue gas by supreme flow from bottom to top, when having realized being applicable to when carrying out the preliminary treatment to the flue gas between production system and flue gas purification's pipeline, the heat exchange process of cold air is mixed in the high temperature flue gas and the interior of regulating box 1.
According to the adjusting method of the temperature control adjusting device for mixing cold air between crude flue gas, flue gas of a metallurgical production system enters the adjusting box body 1 through the flue gas input pipe 3, and then is subjected to adjustment type cooling through self-convection cold air in circulation in the temperature adjusting box 21, so that indirect cold air mixing is realized.
Example 2
In the temperature control and regulation device for mixing cold air between crude flue gas and crude flue gas of the embodiment, basically the same as embodiment 1, furthermore, the temperature regulation components 2 are two or more than two with different heights and distributed up and down alternately, so that the high-temperature flue gas can flow in an inverted S shape in the regulation box body 1, and the heat exchange distance between the high-temperature flue gas and the indirect cold air mixed in the regulation box body 1 is increased. The temperature adjusting components 2 are distributed in the adjusting box body 1 at equal intervals, so that the whole heat exchange process is uniformly connected, the violent exchange process is avoided, the cold air is further prevented from generating strong disturbance to the flue gas, and the pressure of the flue gas conveying pipeline is stabilized. The mouth of the air inlet pipe 23 is provided with an adjustable air door 24, and the size of the air door 24 can be adjusted according to the temperature of high-temperature flue gas, so that the mixing amount of cold air in a room is adjusted. As shown in fig. 2, the air door 24 includes a plurality of louvers 241 and an electric push rod 242, the louvers 241 are evenly distributed from top to bottom, one end of the louvers 241 is connected with the left edge of the mouth of the air inlet pipe 23 through a pin shaft, the other end of the louvers 241 is connected with the right edge of the mouth of the air inlet pipe 23 through a pin shaft, the electric push rod 242 is connected to the outer side surface of the mouth of the air inlet pipe 23, an expansion rod 243 of the electric push rod 242 is connected with one end of a rocker arm in a rotating manner, and the other end of the rocker arm is connected to the pin shaft of the louvers 241. The electric push rod 242 is electrically connected to the controller.
According to the adjusting method of the crude flue gas intermingling cold air type temperature control adjusting device, after flue gas of a metallurgical production system enters the adjusting box body 1 through the flue gas input pipe 3, cold air circulated in the temperature adjusting box 21 is used for adjusting and cooling the flue gas, indirect intermingling cold air is achieved, the size of the air door 24 can be adjusted according to the temperature of high-temperature flue gas, and therefore cold air volume is intermingled in an adjusting room. The pipe diameter of the flue gas output pipe 4 is smaller than that of the flue gas input pipe 3, the hot air temperature of the flue gas output pipe 4 after temperature adjustment is smaller than that of the flue gas input pipe 3, the hot air density is correspondingly increased, and in order to avoid strong disturbance caused by the increase of the air speed after the density is reduced, the design pipe diameter of the flue gas output pipe 4 is smaller than that of the flue gas input pipe 3, so that the pressure of a flue gas conveying pipeline is stabilized.
Example 3
The basic structure of the temperature control and adjustment device for mixing cold air in the coarse flue gas is the same as that of the above embodiment, and further, as shown in fig. 4, a W-shaped guide plate 26 is connected between the front inner wall and the rear inner wall of the temperature adjustment box 21, so that the air can be prevented from generating circuitous disturbance in the temperature adjustment box 21, the flow rate of the air can be improved, and meanwhile, the guide plate 26 also plays a role of a reinforcing rib, and the mechanical strength of the temperature adjustment box 21 can be enhanced. The front outer wall and the rear outer wall of the temperature regulating box 21 are both connected with heat exchange fins 25, so that the heat exchange area between the high-temperature flue gas and the indirect mixed cold air in the regulating box body 1 is increased. The heat exchange fins 25 and the guide plates 26 are uniformly distributed, so that the uniformity and stability of heat exchange are further improved. The thickness of the temperature regulating box is 300mm to 500mm, and can be determined according to the heat exchange efficiency of the flue gas and the temperature regulating box 21 and the bearing capacity of the flue gas conveying pipeline.
In the adjusting method of the temperature control and adjustment device for mixing cold air between coarse flue gas and coarse flue gas of the embodiment, as shown in fig. 5 and 6, flue gas is input through a flue gas input pipe 3, passes through a temperature adjustment assembly 2, and is output to the next station through a flue gas output pipe 4; the electric push rod 242 can be started to open the louver 241, the external atmosphere enters the temperature-adjusting box 21 through the air inlet pipe 23, the atmosphere in the temperature-adjusting box is heated due to heat exchange of flue gas, and is discharged outwards through the air outlet pipe 22 according to the chimney effect, at the moment, the atmosphere in the temperature-adjusting box rapidly rises and enters the temperature-adjusting box through the air inlet pipe 23 at an accelerated speed, so that atmospheric convection is formed, which is substantial, the flowing atmosphere generates heat exchange with the flue gas through the temperature-adjusting box, the flue gas is cooled, the atmosphere in the temperature-adjusting box is heated, a typical chimney effect is formed, namely, the higher the flue gas temperature is, the more obvious the chimney effect is, the better the temperature-adjusting effect of the flue gas is, the complementary synergetic effect is achieved, and the air inlet quantity can be adjusted through the electric push rod 242, the temperature adjusting amplitude is controlled, so that the effect of preventing cold air from generating strong disturbance on the flue gas is achieved. Further, the length of the outlet pipe 22 can be set as required, and according to the chimney effect, the longer the length of the outlet pipe is, the larger the flow of the atmosphere is, and the higher the heat exchange efficiency is.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (7)
1. A temperature control and regulation device for mixing cold air in crude flue gas comprises a regulation box body (1), and a flue gas input pipe (3) and a flue gas output pipe (4) which are respectively provided with openings on the box walls at two sides and are fixedly connected; the method is characterized in that: the height of the smoke output pipe (4) on the box wall is higher than that of the smoke input pipe (3); the adjusting box body (1) is a intermingled cold air type box body;
a temperature adjusting component (2) is vertically and fixedly connected in the adjusting box body (1); the temperature adjusting component (2) comprises a temperature adjusting box (21), the upper part of the temperature adjusting box (21) is connected with an air outlet pipe (22), the air outlet pipe (22) extends out of the adjusting box body (1) and then is communicated with the atmosphere, and the outer wall of the air outlet pipe (22) is fixedly connected to the top wall of the adjusting box body (1); the two sides of the lower part of the temperature regulating box (21) are respectively externally connected with an air inlet pipe (23), the air inlet pipes (23) extend out of the regulating box body (1) and then communicate the inside of the temperature regulating box (21) with the atmosphere, and the outer walls of the air inlet pipes (23) are fixedly connected to the side walls of the regulating box body (1);
the temperature adjusting components (2) are two or more than two which have different heights and are alternately distributed up and down;
the temperature adjusting components (2) are distributed in the adjusting box body (1) at equal intervals.
2. The crude gas fume intermingling cold wind type temperature control and regulation device as claimed in claim 1, characterized in that: an adjustable air door (24) is installed at the opening of the air inlet pipe (23).
3. The crude flue gas intermingling cold wind type temperature control and regulation device of claim 2, characterized in that: air door (24) include shutter plate (241) and electric putter (242), shutter plate (241) top-down evenly distributed is a plurality of, and the one end of shutter plate (241) is connected along rotating in the orificial left side of intake pipe (23) through round pin axle and intake pipe (23), and the other end of shutter plate (241) is connected along rotating in the orificial right side of intake pipe (23) through round pin axle, electric putter (242) are connected in intake pipe (23) mouth of pipe lateral surface, and electric putter's telescopic link (243) are connected with the one end rotation of rocking arm, and the other end of rocking arm is connected in the round pin axle of shutter plate (241).
4. The crude gas fume intermingling cold wind type temperature control and regulation device as claimed in claim 3, characterized in that: a W-shaped guide plate (26) is connected between the front inner wall and the rear inner wall of the temperature regulating box (21).
5. The device for controlling and adjusting the temperature of the crude flue gas mixed with cold air according to claim 4, which is characterized in that: the front outer wall and the rear outer wall of the temperature regulating box (21) are both connected with heat exchange fins (25).
6. The coarse flue gas intermingling cold wind type temperature control and regulation device of claim 5, characterized in that: the heat exchange plates (25) and the guide plates (26) are uniformly distributed.
7. A method for adjusting the temperature control and adjustment device for the crude flue gas intermingled with cold air according to any one of claims 2 to 6, which is characterized in that: after flue gas of the metallurgical production system enters the regulating box body (1) through the flue gas input pipe (3), the flue gas is cooled by self-convection cold air in the temperature regulating box (21), and indirect cold air mixing is realized.
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| CN211885970U (en) * | 2020-04-14 | 2020-11-10 | 沧州天泽环保科技有限公司 | Be applied to flue gas filter equipment in industrial production workshop |
| CN111878315A (en) * | 2020-08-05 | 2020-11-03 | 贵州环科环境工程有限公司 | Wind power generation device and method of high-temperature flue gas mechanical cooler |
| CN212941986U (en) * | 2020-08-20 | 2021-04-13 | 吕梁学院 | High-temperature flue gas dust removal device in ferrous metallurgy industry |
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| CN113758288A (en) | 2021-12-07 |
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