Adjustable air supply mechanism of hot blast stove

Abstract

The invention provides a hot blast stove adjustable air supply mechanism which comprises a hot blast stove, an air distribution pipe and a cold air supply pipe, the air distribution pipe and the cold air supply pipe are installed at the upper end of the hot blast stove, and the air distribution pipe is arranged at the upper end of the hot blast stove and connected with a hot air outlet of the hot blast stove. An air adjusting mechanism for controlling the air inlet amount is arranged on the side, close to the air distribution pipe, of the air guiding box so that hot air in the air distribution pipe can be guided into the air guiding box. A hot air outlet of the hot air furnace is externally connected with an air distribution pipe, air guide boxes are distributed on the air distribution pipe at intervals, an air adjusting mechanism adjusts the air quantity guided into the air guide boxes, air guide barrels are installed at the upper ends of the air guide boxes, one side of each air guide barrel is connected with a cold air barrel, and cold air and hot air flow into a mixing barrel along the air guide barrels to adjust the air temperature. Therefore, the air temperature and the air volume are independently adjusted, and different drying requirements are met.

Description

Technical Field

[0001] This invention relates to the field of hot blast stove technology, specifically to an adjustable air supply mechanism for a hot blast stove. Background Technology

[0002] A biomass hot air furnace is a thermal equipment that uses the combustion of biomass fuel to generate high-temperature hot air. Using biomass pellet fuel as its primary fuel, the furnace transfers the heat generated by fuel combustion to the hot air, providing a heat source for various drying, baking, and smelting processes. During operation, a biomass hot air furnace may need to supply hot air to multiple drying chambers simultaneously. The type and quantity of goods to be dried, the chamber area, and the required degree of drying may vary in each chamber, resulting in different required hot air temperatures and supply volumes. However, the furnace outputs a uniform temperature, which cannot be adjusted according to the needs of each drying chamber, thus affecting the quality of the dried goods. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide an air supply mechanism for a hot blast stove with adjustable air volume and air temperature, so as to solve the problems mentioned in the background art.

[0004] The technical problem solved by this invention is achieved by the following technical solution: an adjustable air supply mechanism for a hot blast stove, comprising: Hot air furnace; A distribution duct is installed at the upper end of the hot blast stove and connected to the hot air outlet of the stove. Several sets of air guide boxes are spaced apart on the distribution duct. Each air guide box has an air-regulating mechanism on its side near the distribution duct to control the air intake volume, thereby guiding the hot air from the distribution duct into the air guide box. The aforementioned air conditioning mechanism includes a rotatable air conditioning component and a sliding air conditioning plate installed on the air conditioning component, so as to adjust the air intake volume by changing the length and angle of the air conditioning plate inserted into the air guide box; A cooling air duct is provided, with one side of the cooling air duct connected to a blower. Several sets of cold air boxes are provided in the corresponding distribution of the cooling air duct, and the cold air boxes are connected to the air guide boxes to inject cold air into the air guide boxes. The cold air boxes are provided with a wind control component to control the ventilation volume. The upper end of the air guide box is connected to the cold air box on one side, and a mixing tube is provided on the other side to mix hot air and cold air for temperature regulation.

[0005] As a further aspect of the present invention: The air guide box has supports on both sides for installing the air regulating component, and the air guide box is located between the two supports with a support groove. The air regulating component includes an air regulating column rotatably disposed in the support groove and a column plate integrally disposed on one side of the upper end of the air regulating column. The air regulating column is rotatably installed in the corresponding shaft holes of the support through the support shaft on both sides. The support shaft on one side of the air regulating column passes through the support, and the outer end of the support shaft is fixedly connected to the connecting plate and connected to the driving component through the connecting plate to control the rotation of the air regulating column. The air regulating column is provided with a sliding groove, the air regulating plate is slidably installed in the sliding groove and inserted into the air distribution pipe through the sliding groove, and the outer end of the column plate is provided with a first electric push rod to control the extension and retraction of the air regulating plate.

[0006] As a further aspect of the present invention: The driving component includes a second electric push rod and a rod seat disposed at the outer end of the second electric push rod. The rod seat is rotatably connected to the connecting plate at the outer end of the adjusting column. The side of the second electric push rod away from the support shaft is rotatably installed at the corresponding position of the air distribution pipe through a rotating seat.

[0007] As a further aspect of the present invention: The air guide box is integrally equipped with an air guide tube on the side away from the air distribution pipe, and is connected to the cold air box and the mixing air box through the air guide tube. The air guide box is provided with air guide plates at intervals on one side of the air guide tube. The air guide plates are installed at an angle inside the air guide box to send the hot air in the air guide box to the air guide tube and blow it into the mixing air box. The air guide plates are also used to prevent cold air from blowing back into the air guide box and avoid the airflow in the air guide box from becoming chaotic.

[0008] As a further aspect of the present invention: The mixing duct has conical structures on both sides. One side of the mixing duct is connected to the air guide duct, and the other side is connected to the duct tube. Inside the mixing duct is a mixing platform for mixing airflow. The mixing platform is conical and located at the axial center of the mixing duct to distribute and mix the airflow introduced into the mixing duct. The mixing platform is fixedly installed on the inner wall of the mixing duct by distributed platform rods. The mixing duct disperses and mixes the airflow introduced into the air guide duct, and then mixes and guides the dispersed airflow into the duct tube, thereby achieving temperature control. The duct tube is also equipped with an airflow sensor for detecting air volume and an air temperature sensor for detecting the temperature inside the duct tube.

[0009] As a further aspect of the present invention: The hot air furnace includes a furnace body chamber, a heat exchange chamber, and an equipment chamber. A blower is installed in the equipment chamber to guide airflow into the heat exchange chamber. An air diffuser is provided outside the air outlet of the blower to evenly guide the airflow into the heat exchange chamber, then through the furnace body chamber, and out through the hot air outlet at the top of the furnace body chamber. The blower is located in the equipment chamber, and a cold air duct is connected to the air outlet of the blower.

[0010] As a further aspect of the present invention: The air inlet of the blower is connected to the air inlet box via a pipe. An air inlet is provided on one side of the air inlet box to introduce outside air into the air inlet box. The side of the air distribution pipe away from the hot air outlet is connected to the air inlet box to realize airflow circulation. The blower uses the air inlet box to draw in the air distribution pipe and then guides the gas into the hot air furnace to realize partial gas circulation. This can accelerate the airflow speed in the air distribution pipe and facilitate the air volume adjustment mechanism. The air inlet box has several air inlets spaced apart, and the air inlet box is provided with an air inlet baffle corresponding to the upper end of the air inlet. The air inlet baffle is inclined to guide the airflow introduced into the air inlet and prevent the airflow introduced into the air distribution pipe from affecting the air inlet, so that the airflow can be smoothly introduced into the blower.

[0011] As a further aspect of the present invention: The upper end of the cold air box is integrally equipped with a cold air duct, which is connected to the air guide duct. The air control component is installed on one side of the cold air box. The air control component includes an air control plate inserted into a corresponding groove in the cold air box and a motor that controls the extension and retraction of the air control plate. The motor is fixedly mounted on a frame plate and is mounted on the upper end of the cooling air duct through the frame plate. The outer end of the air control plate is integrally equipped with a side plate. The outer end of the motor's output rod is driven and connected to a drive screw. The side plate is equipped with a threaded sleeve that is threaded to the drive screw. Guide rods are also fixedly mounted on both sides of the frame plate. The side plate is equipped with a sliding sleeve corresponding to the guide rod, and the guide rod slides in the sliding sleeve. A linear displacement sensor is also provided on one side of the frame plate. The outer end of the pull rod on the linear displacement sensor is fixedly connected to the side plate to detect the movement position of the air control plate, thereby controlling the size of the opening of the cold air box. Specifically, the air control plate is inserted into a corresponding groove in the cold air box and is used to close the cold air box. The motor controls the position of the air control plate through the drive screw to adjust the size of the opening connecting the cold air box and the cooling air duct, thereby adjusting the air intake volume.

[0012] As a further aspect of the present invention: The air conditioning mechanism, air control components, air volume sensor, air temperature sensor, blower and air supply fan are electrically connected to the control host via cables. Air volume sensor and air temperature sensor are also installed in corresponding places such as air distribution duct, cooling air duct, and cold air box to achieve precise control of air temperature and air volume.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the hot air outlet of the hot air furnace is connected to an air distribution pipe, and air guide boxes are distributed at intervals on the air distribution pipe. The air adjustment mechanism adjusts the air volume introduced into the air guide box. An air guide tube is installed at the upper end of the air guide box. One side of the air guide tube is connected to a cold air tube. Cold air and hot air flow into the mixing cylinder along the air guide tube to adjust the air temperature. The mixing cylinder is connected to a conveying air pipe to send the hot air into the corresponding drying chamber, so as to realize the individual adjustment of air temperature and air volume to meet different drying needs.

[0014] One end of the air distribution duct is connected to the hot air outlet of the hot air furnace, and the other end is connected to the air inlet box. The blower drives a portion of the air volume to circulate, and the air inlet on the outside of the air inlet box supplements the air, which can accelerate the airflow in the air distribution box, increase the airflow speed in the air distribution duct, and facilitate the air volume adjustment mechanism.

[0015] The air regulating plate is movably installed on the air regulating column. The first electric push rod controls the extension and retraction of the air regulating plate, and the second electric push rod controls the rotation of the air regulating plate. The angle and length of the air regulating plate inserted into the air distribution pipe can be adjusted to regulate the air volume and wind speed, thereby improving the mixing effect of subsequent hot and cold air. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional view of the present invention. Figure 1 ; Figure 3 This is a partial cross-sectional view of the present invention. Figure 2 ; Figure 4 This is a partial cross-sectional view of the present invention. Figure 3 ; Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 6 for Figure 2 Enlarged structural diagram at point B; The diagram identifies the following: 1. Hot blast stove; 2. Air distribution duct; 3. Cold air supply duct; 4. Air regulating mechanism; 5. Mixing duct; 11. Furnace body chamber; 12. Heat exchange chamber; 13. Equipment room; 14. Blower; 15. Air inlet box; 16. Air inlet baffle; 21. Air guide box; 22. Support; 23. Air guide duct; 24. Air guide plate; 30. Blower; 31. Cold air box; 32. Cold air duct; 33. Air control panel; 34. Motor; 35. Frame plate; 36. Side plate; 37. Guide rod; 38. Linear displacement sensor; 39. Drive screw; 41. Air regulating plate; 42. Air regulating column; 43. Column plate; 44. Support shaft; 45. First electric push rod; 46. Second electric push rod; 47. Connecting plate; 48. Rod seat; 49. Rotary seat; 51. Tube; 52. Mixing table. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0018] like Figure 1As shown, this embodiment provides an adjustable air supply mechanism for a hot blast stove, including a hot blast stove 1 and an air distribution pipe 2 and a cooling air supply pipe 3 installed on the upper end of the hot blast stove 1. The air distribution pipe 2 is located at the upper end of the hot blast stove 1 and is connected to the hot air outlet of the hot blast stove 1. Several sets of air guide boxes 21 are distributed at intervals on the air distribution pipe 2. An air regulating mechanism 4 for controlling the air intake is provided on the side of the air guide box 21 near the air distribution pipe 2, so as to guide the hot air in the air distribution pipe 2 into the air guide box 21. The air regulating mechanism 4 includes a rotatable air regulating component and an air regulating plate 41 slidably inserted and installed on the air regulating component, so as to adjust the air intake by changing the length and angle of the air regulating plate 41 inserted into the air guide box 21. One side of the cooling air duct 3 is connected to the blower 30. The air guide boxes 21 distributed in the cooling air duct 3 are respectively provided with several sets of cold air boxes 31, and are connected to the air guide boxes 21 through the cold air boxes 31 to inject cold air into the air guide boxes 21. The cold air boxes 31 are provided with a wind control component to control the ventilation volume. One side of the upper end of the air guide box 21 is connected to the cold air box 31, and the other side is provided with a mixing duct 5 to mix hot air and cold air and adjust the temperature.

[0019] In one embodiment, when the angle of the air regulating plate 41 is large, the air hole connecting the air guide box 21 and the air distribution pipe 2 is large, and the speed of the hot air entering the air guide box 21 is slower, which helps to mix with the subsequent cold air and achieve precise control of the air temperature. Conversely, when the angle of the air regulating plate 41 is large, the air hole connecting the air guide box 21 and the air distribution pipe 2 is small, and the speed of the hot air entering the air guide box 21 is faster, affecting the mixing effect with the subsequent cold air and resulting in uneven air temperature. However, when the air hole connecting the air guide box 21 and the air distribution pipe 2 is large, due to the large length of the air regulating plate 41, a large amount of hot air will be introduced into the air guide box 21, so it is impossible to achieve precise coordination in terms of air volume and air temperature. To avoid the above situation, this embodiment provides a solution: like Figure 2 , Figure 3 and Figure 6 As shown, the air guide box 21 is provided with supports 22 on both sides for installing air regulating components, and the air guide box 21 is provided with a support groove between the two supports 22. The air regulating component includes an air regulating column 42 rotatably disposed in the support groove and a column plate 43 integrally disposed on one side of the upper end of the air regulating column 42. The air regulating column 42 is rotatably installed in the corresponding shaft holes of the support 22 through the support shaft 44 on both sides. The support shaft 44 on one side of the air regulating column 42 passes through the support 22. The outer end of the support shaft 44 is fixedly connected to the connecting plate 47 and connected to the driving component through the connecting plate 47 to control the rotation of the air regulating column 42. The air regulating column 42 is provided with a sliding groove, the air regulating plate 41 is slidably installed in the sliding groove and inserted into the air distribution pipe 2 through the sliding groove, and the outer end of the column plate 43 is provided with a first electric push rod 45 for controlling the extension and retraction of the air regulating plate 41.

[0020] Specifically, the drive unit controls the rotation of the air regulating column 42 to adjust the angle of the air regulating plate 41 inside the air distribution pipe 2, thereby controlling the connection between the air guide box 21 and the air distribution pipe 2, so that hot air is introduced into the air guide box 21 through the air regulating plate 41; the first electric push rod 45 controls the extension and retraction of the air regulating plate 41, and the air volume can be adjusted by adjusting the length of the air regulating plate 41 inserted into the air distribution pipe 2, so as to achieve a larger air hole and a lower wind speed, and achieve precise control of wind temperature and air volume.

[0021] The driving component includes a second electric push rod 46 and a rod seat 48 disposed at the outer end of the second electric push rod 46. The rod seat 48 is rotatably connected to the connecting plate 47 at the outer end of the adjusting column. The side of the second electric push rod 46 away from the support shaft 44 is rotatably installed at the corresponding position of the air distribution pipe 2 through a rotating seat 49.

[0022] The air guide box 21 is integrally provided with an air guide tube 23 on the side away from the air distribution pipe 2, and the air guide tube 23 connects the cold air box 31 and the mixing air tube 5. The air guide box 21 is provided with air guide plates 24 at intervals on one side of the air guide tube 23. The air guide plates 24 are installed obliquely inside the air guide box 21 to send the hot air in the air guide box 21 to the air guide tube 23 and blow it into the mixing air tube 5. The air guide plates 24 are also used to prevent cold air from blowing back into the air guide box 21 and avoid the airflow in the air guide box 21 from becoming chaotic.

[0023] The mixing duct 5 has conical structures on both sides. One side of the mixing duct 5 is connected to the air guide duct 23, and the other side is connected to the tube 51. A mixing platform 52 for mixing airflow is provided inside the mixing duct 5. The mixing platform 52 has a conical structure and is located at the axial position of the mixing duct 5 to split and mix the airflow introduced into the mixing duct 5. The mixing platform 52 is fixedly installed on the inner wall of the mixing duct 5 by distributed platform rods. The mixing duct 5 disperses and mixes the airflow introduced into the air guide duct 23, and on the other side, it mixes and guides the dispersed airflow into the tube 51, thereby achieving temperature control. An airflow sensor for detecting air volume and a temperature sensor for detecting the temperature inside the tube 51 are also installed on the tube 51.

[0024] like Figure 2 and Figure 4 As shown, in one embodiment, the hot air furnace 1 includes a furnace body chamber 11, a heat exchange chamber 12, and an equipment chamber 13. A blower 14 is installed in the equipment chamber 13 to guide airflow into the heat exchange chamber 12. An air diffuser box is provided outside the air outlet of the blower 14 to evenly guide the airflow into the heat exchange chamber 12, and then through the furnace body chamber 11, and out through the hot air outlet at the upper end of the furnace body chamber 11. The blower 30 is installed in the equipment chamber 13, and the cold air pipe 3 is connected to the air outlet of the blower 30.

[0025] If the air distribution duct 2 is a closed structure, the hot air delivered into the air distribution duct 2 from the hot air outlet will have greater pressure and will reduce the air velocity, thereby reducing the air regulation performance of the air regulating mechanism 4. When the air hole connecting the air guide box 21 and the air distribution duct 2 is large, the hot air will directly enter the air guide box 21 due to pressure, thereby reducing the effect of the air regulating plate 41 and making it difficult to regulate the air volume. To avoid the above situation, this embodiment provides a solution: like Figure 2 and Figure 4 As shown, in this embodiment, the air inlet of the blower 14 is connected to the air inlet box 15 through a pipe. An air inlet is provided on one side of the air inlet box 15 to introduce external gas into the air inlet box 15. The side of the air distribution pipe 2 away from the hot air outlet is connected to the air inlet box 15 to realize airflow circulation. The blower 14 uses the air inlet box 15 to draw gas from the air distribution pipe 2 and then guides the gas into the hot air furnace 1 to realize partial gas circulation. This can accelerate the airflow speed in the air distribution pipe 2 and facilitate the airflow adjustment mechanism 4 to adjust the air volume. The air inlet of the air inlet box 15 is provided with several air inlets at intervals, and the upper end of the air inlet box 15 is provided with an air inlet baffle 16. The air inlet baffle 16 is inclined to guide the airflow introduced into the air inlet and prevent the airflow introduced into the air distribution pipe 2 from affecting the air inlet, so that the airflow can be smoothly introduced into the blower 14.

[0026] like Figure 5 As shown, in one embodiment, the upper end of the cold air box 31 is integrally provided with a cold air duct 32, and is connected to the air guide duct 23 through the cold air duct 32. The air control component is installed on one side of the cold air box 31. The air control component includes an air control plate 33 inserted into a corresponding groove in the cold air box 31 and a motor 34 for controlling the extension and retraction of the air control plate 33. The motor 34 is fixedly installed on a frame plate 35 and is installed on the upper end of the cooling air duct 3 through the frame plate 35. The outer end of the air control plate 33 is integrally provided with a side plate 36. The motor 34 is fixedly installed on a frame plate 35, and is installed on the upper end of the cooling air duct 3 through the frame plate 35. The outer end of the output rod of 4 is connected to the drive screw 39 for transmission. A threaded sleeve is provided on the side plate for threaded connection with the drive screw 39. Guide rods are also fixed on both sides of the frame plate 35. A sliding sleeve is provided on the side plate corresponding to the guide rod 37, and the guide rod 37 is slidably installed in the sliding sleeve. A linear displacement sensor 38 is also provided on one side of the frame plate 35. The outer end of the pull rod on the linear displacement sensor 38 is fixedly connected to the side plate 36 to detect the movement position of the air control plate 33, thereby controlling the size of the opening of the cold air box 31. Specifically, the air control plate 33 is inserted into the corresponding sliding groove of the cold air box 31 and is used to close the cold air box 31. The motor 34 controls the position of the air control plate 33 through the drive screw 39 to adjust the size of the opening connecting the cold air box 31 and the cold air supply duct 3, thereby adjusting the air intake volume.

[0027] The air conditioning mechanism 4, air control components, air volume sensor, air temperature sensor, blower 30 and air supply fan 14 are electrically connected to the control host via cables. Air volume sensor and air temperature sensor are also installed in corresponding places such as air distribution duct 2, cooling air duct 3, and cold air box 31 to achieve precise control of air temperature and air volume.

[0028] The control host can be set up separately or installed outside the shell of the equipment room 13 or the hot air furnace 1. The control host needs to be equipped with software to regulate the air temperature and air volume so as to achieve precise adjustment of air temperature and air volume through detection data. This invention mainly protects the device structure of the hot air furnace 1. Its software and circuit are conventional designs made by those skilled in the art according to the requirements.

[0029] Specifically, the hot air outlet of the hot air furnace 1 is connected to an air distribution pipe 2. Air guide boxes 21 are distributed at intervals on the air distribution pipe 2. The air regulating mechanism 4 regulates the air volume introduced into the air guide boxes 21. An air guide tube 23 is installed on the upper end of the air guide box 21. One side of the air guide tube 23 is connected to the cold air tube 32. Cold air and hot air flow into the mixing cylinder along the air guide tube 23 to regulate the air temperature. The mixing cylinder is connected to a conveying air pipe to send the hot air into the corresponding drying chamber, so as to realize the individual adjustment of air temperature and air volume to meet different drying needs.

[0030] One end of the air distribution duct 2 is connected to the hot air outlet of the hot air furnace 1, and the other end is connected to the air inlet box 15. The blower 14 drives a portion of the air volume to circulate. The air inlet on the outside of the air inlet box 15 supplements the air, which can accelerate the airflow of the air guide box 21, increase the airflow speed in the air distribution duct 2, and facilitate the air volume adjustment mechanism 4 to adjust the air volume.

[0031] The air regulating plate 41 is movably installed on the air regulating column 42. The first electric push rod 45 controls the extension and retraction of the air regulating plate 41, and the second electric push rod 46 controls the rotation of the air regulating plate 41. The angle and length of the air regulating plate 41 inserted into the air distribution pipe 2 can be adjusted to regulate the air volume and wind speed, thereby improving the mixing effect of subsequent hot and cold air.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents. It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely used to distinguish one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An adjustable air supply mechanism for a hot air furnace, characterized in that: include: Hot blast furnace (1); A distribution duct (2) is installed at the upper end of the hot blast furnace (1) and connected to the hot air outlet of the hot blast furnace (1). Several sets of air guide boxes (21) are spaced apart on the distribution duct (2). An air regulating mechanism (4) for controlling the air intake is provided on the side of the air guide box (21) near the distribution duct (2) to guide the hot air in the distribution duct (2) into the air guide box (21). The aforementioned air conditioning mechanism (4) includes a rotatable air conditioning component and a sliding air conditioning plate (41) installed on the air conditioning component, so as to adjust the air intake by changing the length and angle of the air conditioning plate (41) inserted into the air guide box (21); A cooling air duct (3) is connected to a blower (30) on one side. The air guide boxes (21) distributed on the cooling air duct (3) are provided with several sets of cold air boxes (31) respectively, and are connected to the air guide boxes (21) through the cold air boxes (31) to inject cold air into the air guide boxes (21). The cold air boxes (31) are provided with a wind control component to control the ventilation volume. The upper side of the air guide box (21) is connected to the cold air box (31), and the other side is provided with a mixing tube (5) to mix hot air and cold air for temperature regulation.

2. The adjustable air supply mechanism for a hot blast stove according to claim 1, characterized in that: The air guide box (21) is provided with supports (22) for installing air regulating components on both sides, and the air guide box (21) is provided with a support groove between the two supports (22). The air regulating component includes an air regulating column (42) rotatably disposed in the support groove and a column plate (43) integrally disposed on one side of the upper end of the air regulating column (42). The air regulating column (42) is rotatably installed in the corresponding shaft holes of the support (22) on both sides through the support shaft (44). The support shaft (44) on one side of the air regulating column (42) passes through the support (22). The outer end of the support shaft (44) is fixedly connected to the connecting plate (47) and connected to the driving component through the connecting plate (47) to control the rotation of the air regulating column (42). The air regulating column (42) is provided with a sliding groove, the air regulating plate (41) is slidably installed in the sliding groove and inserted into the air distribution pipe (2) through the sliding groove, and the outer end of the column plate (43) is provided with a first electric push rod (45) for controlling the extension and retraction of the air regulating plate (41).

3. The adjustable air supply mechanism for a hot blast stove according to claim 2, characterized in that: The driving component includes a second electric push rod (46) and a rod seat (48) disposed at the outer end of the second electric push rod (46). The rod seat (48) is rotatably connected to the connecting plate (47) at the outer end of the adjusting column. The side of the second electric push rod (46) away from the support shaft (44) is rotatably installed at the corresponding position of the air distribution pipe (2) through a rotating seat (49).

4. The adjustable air supply mechanism for a hot blast stove according to claim 3, characterized in that: The air guide box (21) is integrally provided with an air guide tube (23) on the side away from the air distribution pipe (2), and is connected to the cold air box (31) and the mixing air tube (5) through the air guide tube (23). The air guide box (21) is provided with air guide plates (24) at intervals on one side of the air guide tube (23). The air guide plates (24) are installed obliquely inside the air guide box (21) to send the hot air in the air guide box (21) to the air guide tube (23) and blow it into the mixing air tube (5).

5. The adjustable air supply mechanism for a hot blast stove according to claim 4, characterized in that: The mixing duct (5) has a conical structure on both sides. One side of the mixing duct (5) is connected to the air guide duct (23), and the other side is connected to the tube (51). The mixing duct (5) is equipped with a mixing platform (52) for mixing airflow. The mixing platform (52) has a conical structure and is located at the axial position of the mixing duct (5) to split and mix the airflow introduced into the mixing duct (5). The mixing platform (52) is fixedly installed on the inner wall of the mixing duct (5) by distributed platform rods.

6. The adjustable air supply mechanism for a hot blast stove according to claim 1, characterized in that: The hot air furnace (1) includes a furnace body chamber (11), a heat exchange chamber (12) and an equipment chamber (13). A blower (14) for introducing airflow into the heat exchange chamber (12) is installed in the equipment chamber (13). An air diffuser box is provided outside the air outlet of the blower (14). The blower (30) is located in the equipment chamber (13), and the cold air pipe (3) is connected to the air outlet of the blower (30).

7. The adjustable air supply mechanism for a hot blast stove according to claim 6, characterized in that: The air inlet of the blower (14) is connected to the air inlet box (15) through a pipe. An air inlet is provided on one side of the air inlet box (15) to introduce outside air into the air inlet box (15). The side of the air distribution pipe (2) away from the hot air outlet is connected to the air inlet box (15). The air inlet of the air inlet box (15) is provided at intervals of several, and an air inlet baffle (16) is provided at the upper end of the air inlet of the air inlet box (15). The air inlet baffle (16) is inclined.

8. The adjustable air supply mechanism for a hot blast stove according to claim 7, characterized in that: The upper end of the cold air box (31) is integrally provided with a cold air duct (32), and is connected to the air guide duct (23) through the cold air duct (32). The air control component is installed on one side of the cold air box (31). The air control component includes an air control plate (33) inserted and installed in the corresponding slide groove of the cold air box (31) and a motor (34) for controlling the extension and retraction of the air control plate (33). The motor (34) is fixedly installed on the frame plate (35) and is installed on the upper end of the cooling air duct (3) through the frame plate (35). The outer end of the air control plate (33) is integrally provided with a side plate (36). The outer end of the output rod of the motor (34) is connected to the drive screw (39). The side plate is provided with a threaded sleeve that is threadedly connected to the drive screw (39). The two sides of the frame plate (35) are also fixedly provided with guide rods (37). The side plate is provided with a sliding sleeve corresponding to the guide rod (37). The guide rod (37) is slidably installed in the sliding sleeve.

9. The adjustable air supply mechanism for a hot blast stove according to claim 8, characterized in that: A linear displacement sensor (38) is also provided on one side of the frame plate (35). The outer end of the pull rod on the linear displacement sensor (38) is fixedly connected to the side plate (36) to detect the movement position of the wind control plate (33).

10. An adjustable air supply mechanism for a hot blast stove according to any one of claims 1-9, characterized in that: The air conditioning mechanism (4), air control components, air volume sensor, air temperature sensor, blower (30) and air supply fan (14) are electrically connected to the control host via cables.

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