A reversing valve for a ladle oven

Abstract

The present application relates to a kind of reversing valve of ladle roaster, including valve body, a pair of vertical interfaces are opened in the side of the valve body, a pair of vertical interfaces are vertically symmetric distribution;A pair of horizontal interfaces are opened in the other side of the valve body, a pair of horizontal interfaces are horizontally symmetric distribution;The inner wall of the valve body is fixed with baffle, baffle is I-shaped structure;A pair of valve seats are opened in the two sides of the baffle, every pair of adjacent valve seat is vertically symmetric distribution;The top of the valve body is fixed with a pair of air cylinder;Valve plate is installed in the output end of the air cylinder, the inner wall of valve seat is set with the valve plate;The inner wall of the vertical interface is fixed with net plate;Through the cooperation of valve plate and valve seat, the metal hard seal of valve seat can be realized, the situation that frequent replacement is needed due to high temperature when rubber seal is reduced, the service life of valve plate is extended.

Description

Technical Field

[0001] This invention relates to the field of directional valve technology, and in particular to a directional valve for a ladle baking oven. Background Technology

[0002] The ladle preheater is a key piece of equipment in steel production used to preheat the ladle. Its core function is to dry and heat the ladle lining to the required process temperature, typically 800-1200℃, using high-temperature flames or electric heating, to reduce heat loss from the molten steel and prevent rapid cooling and cracking of the lining. The reversing valve, as a core component of fluid control, plays a crucial role in the ladle preheater's fuel supply, combustion air regulation, and exhaust gas emission systems.

[0003] During use and observation, it was found that during the process of baking the ladle in the ladle oven, the flame temperature exceeded 1000℃. The reversing valve is installed on the top of the ladle cover and is exposed to radiation temperatures of up to 200℃ or higher. The sealing ring of the reversing valve is a rubber sealing ring, which is not resistant to high temperatures, resulting in a short service life and frequent failures of the reversing valve. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the rubber seal used in the existing directional valve is not resistant to high temperature, resulting in short service life and frequent failures of the directional valve.

[0005] To solve the above-mentioned technical problems, the present invention provides a reversing valve for a ladle baking oven, comprising a valve body, a pair of vertical interfaces symmetrically distributed vertically on one side of the valve body, a pair of horizontal interfaces symmetrically distributed horizontally on the other side of the valve body, a partition plate of I-shape fixed to the inner wall of the valve body, a pair of valve seats symmetrically distributed vertically on both sides of the partition plate, a pair of cylinders fixed to the top of the valve body, a valve plate mounted on the output end of the cylinders, the valve plate fitting snugly against the inner wall of the valve seat, and a mesh plate fixed to the inner wall of the vertical interfaces; through the cooperation of the valve plate and the valve seat, a metal hard seal can be achieved on the valve seat, reducing the need for frequent replacement of rubber seals due to high temperature, and extending the service life of the valve plate.

[0006] In one embodiment of the present invention, a pair of rotating shafts are symmetrically rotatably connected inside the valve body, and a partition is located between the pair of rotating shafts; a motor is fixedly connected to one side of the valve body; the output end of the motor is fixedly connected to one of the rotating shafts; the ends of the pair of rotating shafts are driven by a sprocket and chain; a brush plate is fixedly connected to the other end of the rotating shaft, and the brush plate is correspondingly arranged with the screen plate; by setting the brush plate, starting the motor can make the brush plate clean the dust accumulation side of the screen plate, extend the service life of the screen plate, and realize the online cleaning of the screen plate by the device.

[0007] In one embodiment of the present invention, a first gear is fixedly connected to the middle of the rotating shaft; a second gear is provided on one side of the first gear; a box is sleeved around the first and second gears, and the box and the partition are fixedly connected; the second gear is rotatably connected to the box, and the rotating shaft is through-connected to the box and rotatably connected; vibration boxes are fixedly connected to both ends of the second gear; the vibration box has a cavity inside, and at least one ball is provided in the cavity; when the rotating shaft rotates, it can drive the first gear to rotate synchronously, the first gear can mesh with the second gear and drive the second gear to rotate, the second gear can drive the vibration box to rotate together, the ball inside the vibration box can move irregularly under the action of rotation and repeatedly collide with the inner wall of the vibration box, the collision between the ball and the vibration box can be transmitted to the valve body through the box and the partition, thereby causing the valve seat on the partition and the mesh plate in the vertical interface to shake off the particulate impurities attached to the surface under the action of vibration, improving the smoothness of the inner wall of the valve seat and extending the service life of the mesh plate. In addition, the box can enclose and protect the first and second gears to reduce the impact of particulate impurities in the valve body.

[0008] In one embodiment of the present invention, a plurality of sliding rods are slidably connected through the inner wall of the vibration box; a piston plate is fixedly connected to the end of each sliding rod; a cylinder is sleeved on the outside of the piston plate, and the piston plate and the cylinder are slidably connected; the cylinder is fixedly connected to the vibration box; a spring is fixedly connected between the piston plate and one inner wall of the cylinder; compressed air is filled between the piston plate and the other inner wall of the cylinder; the internal components of the valve body can be heated under high temperature radiation, and the temperature can generally reach 200°C. At room temperature, when the spring and compressed air are in equilibrium, the sliding rod is flush with the inner wall of the vibration box. When the temperature rises, the compressed air pressure increases, pushing the piston plate to compress the spring and causing the sliding rod to protrude from the inner wall of the vibration box, which increases the collision area of ​​the ball when it moves in the vibration box, improves its vibration effect, and the higher the temperature, the larger the collision area of ​​the ball in the vibration box.

[0009] In one embodiment of the present invention, the piston plate is provided with a rupture disc at its end; if the temperature inside the valve body is accidentally too high, the cylinder body will tend to rupture due to the internal gas pressure. At this time, the rupture disc will rupture before the cylinder body, and the rupture disc can make a sound when it ruptures, thereby protecting the cylinder body and reminding the staff to carry out maintenance in a timely manner.

[0010] In one embodiment of the present invention, a gas distribution plate is fixedly connected to one side of the valve body; an air inlet is connected to the middle of the gas distribution plate; the gas distribution plate and the partition are in communication; multiple air outlets are provided on the inner wall of the valve seat; during maintenance, the device can be connected to an air pump by connecting the air inlet to the air pump, and compressed airflow can be delivered into the partition through the air inlet and the gas distribution plate. The airflow can be ejected from the air outlets in the valve seat to backflush the inner wall of the valve seat and reduce the residual particulate impurities on the valve seat.

[0011] In one embodiment of the present invention, a protective layer is fixedly attached to the inner wall of the valve seat; the protective layer may be a porous material. By setting the protective layer, the protective layer can block the air outlet, thereby reducing the situation where particulate impurities enter the interior of the partition through the air outlet.

[0012] In one embodiment of the present invention, the outer wall of the protective layer is provided with a plurality of exhaust holes, and the adjacent exhaust holes are staggered; when the protective layer is specifically made of a thin film material, when the air is sprayed from the air outlet, the airflow can flow along the gap between the air outlet and the protective layer and flow out from the exhaust holes at the edge, and the protective layer can be shaken under the action of the airflow, thereby reducing the particulate impurities attached to the protective layer.

[0013] In one embodiment of the present invention, a first connecting plate is fixedly connected to the cylinder output end; a second connecting plate is fixedly connected to the top of the valve plate; a plurality of positioning rods are fixedly connected to the top of the second connecting plate, and the positioning rods are through-connected to the first connecting plate and are slidably connected; a limiting nut is provided at the top of the positioning rod; a metal bellows is fixedly connected between the first connecting plate and the second connecting plate; when the valve plate expands axially under high temperature, the metal bellows will be compressed under the expansion of the second connecting plate, and the second connecting plate will move upward along the first connecting plate with the positioning rods, thereby offsetting the thermal stress on the cylinder output end when the valve plate expands.

[0014] In one embodiment of the present invention, the metal corrugated pipe is provided with an elastic cloth on its exterior; the elastic cloth is fixedly installed between the first connecting plate and the second connecting plate; by providing the elastic cloth, the elastic cloth can seal and protect the metal corrugated pipe, reducing impurities remaining in the gaps on the surface of the metal corrugated pipe.

[0015] The technical solution of the present invention has the following advantages compared with the prior art:

[0016] 1. The reversing valve of the ladle baking oven described in this invention can achieve a metal hard seal on the valve seat through the cooperation of the valve plate and the valve seat, reducing the need for frequent replacement of rubber seals due to high temperature and extending the service life of the valve plate.

[0017] 2. The reversing valve of the ladle baking machine of the present invention, by setting a brush plate, can make the brush plate clean the ash-accumulated side of the screen plate by starting the motor, thereby extending the service life of the screen plate and realizing the online cleaning of the screen plate by the device. Attached Figure Description

[0018] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the main body of the present invention;

[0020] Figure 2 This is a schematic diagram of the valve body in this invention;

[0021] Figure 3 This is a schematic diagram of the partition structure in this invention;

[0022] Figure 4 This is a schematic diagram of the cylinder structure in this invention;

[0023] Figure 5 This is a schematic diagram of the structure of the rotating shaft in this invention;

[0024] Figure 6 This is a schematic diagram of the structure of the vibration box in this invention;

[0025] Figure 7 This is a schematic diagram of the valve seat structure in this invention;

[0026] Figure 8 This is a schematic diagram of the structure of the metal bellows in this invention.

[0027] Explanation of reference numerals in the accompanying drawings: 1. Valve body; 12. Vertical interface; 13. Horizontal interface; 14. Partition plate; 15. Cylinder; 16. Valve plate; 17. Valve seat; 18. Mesh plate; 2. Motor; 22. Rotating shaft; 23. Brush plate; 3. Box body; 32. First gear; 33. Second gear; 34. Vibration box; 35. Ball; 4. Cylinder body; 42. Piston plate; 43. Slide rod; 5. Rupture disc; 6. Air inlet; 62. Air distribution plate; 63. Air outlet; 7. Protective layer; 8. Exhaust hole; 9. First connecting plate; 92. Metal bellows; 93. Positioning rod; 94. Second connecting plate; 10. Elastic cloth. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0029] Reference Figures 1 to 8 As shown, a reversing valve for a ladle baking apparatus of the present invention includes a valve body 1. A pair of vertical interfaces 12 are provided on one side of the valve body 1, and the pair of vertical interfaces 12 are vertically symmetrically distributed. A pair of horizontal interfaces 13 are provided on the other side of the valve body 1, and the pair of horizontal interfaces 13 are horizontally symmetrically distributed. A partition 14 is fixedly connected to the inner wall of the valve body 1, and the partition 14 has an I-shaped structure. A pair of valve seats 17 are provided on both sides of the partition 14, and each adjacent pair of valve seats 17 is vertically symmetrically distributed. A pair of cylinders 15 are fixedly connected to the top of the valve body 1. A valve plate 16 is installed at the output end of the cylinder 15, and the valve plate 16 is fitted against the inner wall of the valve seat 17. A mesh plate 18 is fixedly connected to the inner wall of the vertical interfaces 12. In use, ... Figure 4Taking this as an example, a pair of vertical interfaces 12 are connected to a blower and an induced draft fan respectively from top to bottom via air ducts. A pair of horizontal interfaces 13 are connected to the first and second heat storage bodies of the heat storage oven from left to right. The output end of the left cylinder 15 is in the extended state, and the output end of the right cylinder 15 is in the retracted state. At this time, the induced draft fan is connected to the second heat storage body through the bottom vertical interface 12 and the right horizontal interface 13. The induced draft fan can heat the second heat storage body by drawing high-temperature gas from the ladle. Meanwhile, the blower is connected to the first heat storage body through the top vertical interface 12 and the left horizontal interface 13. The blower can input air into the first heat storage body that has been heated in the previous cycle for preheating. After half a minute, the working state of the pair of cylinders 15 can be switched by the solenoid valve. This causes the output end of the left cylinder 15 to retract and the output end of the right cylinder 15 to extend, resulting in a vertical displacement of the pair of valve plates 16. This allows for switching of the working state of the heat storage medium. When the cylinder 15 starts and closes the valve seat 17 through the valve plate 16, the valve seat 17 is rigidly sealed due to the inclined fit between the valve plate 16 and the valve seat 17. This reduces damage caused by high-temperature radiation, as is common with traditional rubber seals. At the same time, the mesh plate 18 filters and removes impurities from the airflow generated by the blower and induced draft fan, reducing the impact of impurities on other equipment. Through the cooperation of the valve plate 16 and the valve seat 17, a hard metal seal is achieved for the valve seat 17, reducing the need for frequent replacement of rubber seals due to high temperatures and extending the service life of the valve plate 16.

[0030] Reference Figure 5 As shown, a pair of rotating shafts 22 are symmetrically rotatably connected inside the valve body 1, and a partition plate 14 is located between the pair of rotating shafts 22; a motor 2 is fixedly connected to one side of the valve body 1; the output end of the motor 2 is fixedly connected to one of the rotating shafts 22; the ends of the pair of rotating shafts 22 are driven by a sprocket and chain; a brush plate 23 is fixedly connected to the other end of the rotating shaft 22, and the brush plate 23 is correspondingly arranged with the mesh plate 18; when the airflow inside the valve body 1 circulates, it will carry particulate impurities. By starting the motor 2, the motor 2 can drive the rotating shaft 22 connected to its output end. When rotation occurs, another rotating shaft 22 can rotate synchronously under the action of chain drive. The brush plate 23 can rotate together with the rotating shaft 22. The bristles on the brush plate 23 can unclog and clean the side of the screen plate 18 near the valve body 1, reducing the clogging effect of particulate impurities in the valve body 1 on the screen plate 18. The bristles on the brush plate 23 are made of high temperature resistant material. By setting the brush plate 23, starting the motor 2 can make the brush plate 23 unclog and clean the dust-accumulated side of the screen plate 18, extend the service life of the screen plate 18, and realize the online cleaning of the screen plate 18 by the device.

[0031] Reference Figure 5 and Figure 6As shown, a first gear 32 is fixedly connected to the middle of the rotating shaft 22; a second gear 33 is provided on one side of the first gear 32; a box 3 is fitted around the first gear 32 and the second gear 33, and the box 3 and the partition 14 are fixedly connected; the second gear 33 is rotatably connected to the box 3, and the rotating shaft 22 is through-connected to the box 3 and rotatably connected; vibration boxes 34 are fixedly connected to both ends of the second gear 33; the vibration box 34 has a cavity inside, and at least one ball 35 is provided in the cavity; when the rotating shaft 22 rotates, it can drive the first gear 32 to rotate synchronously, and the first gear 32 can mesh with the second gear 33 to drive the second gear 33. When the second gear 33 rotates, it can drive the vibration box 34 to rotate together. The ball 35 inside the vibration box 34 can move irregularly under the action of rotation and repeatedly collide with the inner wall of the vibration box 34. The collision between the ball 35 and the vibration box 34 can be transmitted to the valve body 1 through the box body 3 and the partition 14. This allows the valve seat 17 on the partition 14 and the mesh plate 18 in the vertical interface 12 to shake off the particulate impurities attached to the surface under the action of vibration, improve the smoothness of the inner wall of the valve seat 17, and extend the service life of the mesh plate 18. In addition, the box body 3 can enclose and protect the first gear 32 and the second gear 33 to reduce the impact of particulate impurities in the valve body 1.

[0032] Reference Figure 6 As shown, multiple sliding rods 43 are slidably connected through the inner wall of the vibration box 34; a piston plate 42 is fixedly connected to the end of each sliding rod 43; a cylinder 4 is sleeved on the outside of the piston plate 42, and the piston plate 42 and the cylinder 4 are slidably connected; the cylinder 4 and the vibration box 34 are fixedly connected; a spring is fixedly connected between the piston plate 42 and one inner wall of the cylinder 4; compressed air is filled between the piston plate 42 and the other inner wall of the cylinder 4; the internal components of the valve body 1 can be heated under high-temperature radiation, and the temperature can generally reach 200℃. At room temperature, when the spring and compressed air are in equilibrium, the sliding rod 43 is flush with the inner wall of the vibration box 34. When the temperature rises, the compressed air pressure increases, pushing the piston plate 42 to squeeze the spring and causing the sliding rod 43 to protrude from the inner wall of the vibration box 34. This increases the collision area of ​​the ball 35 when it moves in the vibration box 34, improving its vibration effect. The higher the temperature, the larger the collision area of ​​the ball 35 in the vibration box 34.

[0033] Reference Figure 6 As shown, the piston plate 42 is provided with a rupture disc 5 at its end; if the temperature inside the valve body 1 is accidentally too high, the cylinder 4 will tend to rupture due to the internal gas pressure. At this time, the rupture disc 5 will rupture before the cylinder 4, and the rupture disc 5 can make a sound when it ruptures, thereby protecting the cylinder 4 and reminding the staff to carry out maintenance in time.

[0034] Reference Figure 2 and Figure 7As shown, a gas distribution plate 62 is fixedly connected to one side of the valve body 1; an air inlet 6 is connected to the middle of the gas distribution plate 62; the gas distribution plate 62 is connected to the partition plate 14; multiple air outlets 63 are opened on the inner wall of the valve seat 17; during maintenance, the air inlet 6 can be connected to an air pump, and compressed air is delivered to the partition plate 14 through the air inlet 6 and the gas distribution plate 62. The air can be ejected from the air outlets 63 in the valve seat 17 to backflush the inner wall of the valve seat 17 and reduce the particulate impurities remaining on the valve seat 17.

[0035] Reference Figure 7 As shown, a protective layer 7 is fixed to the inner wall of the valve seat 17; the protective layer 7 can be made of a porous material. By setting the protective layer 7, the protective layer 7 can block the air outlet 63, thereby reducing the situation where particulate impurities enter the interior of the partition 14 through the air outlet 63.

[0036] Reference Figure 7 As shown, the outer wall of the protective layer 7 is provided with a plurality of exhaust holes 8, and the adjacent exhaust holes 8 are staggered. When the protective layer 7 is specifically made of a thin film material, when the air outlet 63 sprays air, the airflow can flow along the gap between the air outlet 63 and the protective layer 7 and flow out from the exhaust holes 8 at the edge. The protective layer 7 can shake under the action of the airflow, thereby reducing the particulate impurities attached to the protective layer 7.

[0037] Reference Figure 8 As shown, a first connecting plate 9 is fixedly connected to the output end of the cylinder 15; a second connecting plate 94 is fixedly connected to the top of the valve plate 16; a plurality of positioning rods 93 are fixedly connected to the top of the second connecting plate 94, and the positioning rods 93 and the first connecting plate 9 are through-connected and slidably connected; a limiting nut is provided at the top of the positioning rods 93; a metal bellows 92 is fixedly connected between the first connecting plate 9 and the second connecting plate 94; when the valve plate 16 expands axially under high temperature, the metal bellows 92 will be compressed under the expansion of the second connecting plate 94, and the second connecting plate 94 will move upward along the first connecting plate 9 with the positioning rods 93, thereby offsetting the thermal stress on the output end of the cylinder 15 when the valve plate 16 expands.

[0038] Reference Figure 8 As shown, the metal corrugated pipe 92 is provided with an elastic cloth 10 on its exterior; the elastic cloth 10 is fixedly installed between the first connecting plate 9 and the second connecting plate 94; by providing the elastic cloth 10, the elastic cloth 10 can seal and protect the metal corrugated pipe 92, reducing the impurities remaining in the gaps on the surface of the metal corrugated pipe 92.

[0039] Working principle: A pair of vertical interfaces 12 are connected to the blower and the induced draft fan respectively from top to bottom through air ducts. A pair of horizontal interfaces 13 are connected to the first and second heat storage bodies of the heat storage oven respectively from left to right. The output end of the left cylinder 15 is in the extended state, and the output end of the right cylinder 15 is in the retracted state. At this time, the induced draft fan is connected to the second heat storage body through the bottom vertical interface 12 and the right horizontal interface 13. The induced draft fan can heat the second heat storage body by drawing high-temperature gas from the ladle. Meanwhile, the blower is connected to the first heat storage body through the top vertical interface 12 and the left horizontal interface 13. The blower can input air to the first heat storage body after the upper cycle heating is completed. The first heat storage body is preheated. After half a minute, the working state of a pair of cylinders 15 can be switched by a solenoid valve, causing the output end of the left cylinder 15 to retract and the output end of the right cylinder 15 to extend, thereby causing a pair of valve plates 16 to be vertically displaced. This achieves the switching of the working state of the heat storage body. When the cylinder 15 is started and the valve plate 16 closes the valve seat 17, the valve seat 17 can be rigidly sealed because the connection between the valve plate 16 and the valve seat 17 is inclined and fitted, reducing the damage caused by high temperature radiation when using traditional rubber seals. At the same time, the mesh plate 18 can filter and remove impurities from the airflow generated by the blower and induced draft fan, reducing the impact of impurities in the airflow on the heat storage body. The impact of other equipment: When the airflow inside valve body 1 circulates, it carries particulate impurities. Starting motor 2 drives the shaft 22 connected to its output end to rotate. Simultaneously, another shaft 22 rotates synchronously under chain drive. The brush plate 23 rotates together with the shaft 22, and the bristles on the brush plate 23 clean the side of the mesh plate 18 near valve body 1, reducing the clogging effect of particulate impurities inside valve body 1 on the mesh plate 18. The bristles on the brush plate 23 are made of high-temperature resistant material. When the shaft 22 rotates, it drives the first gear 32 to rotate synchronously. The first gear 32 meshes with the second gear 33 to drive the first gear 32 to rotate synchronously. The second gear 33 rotates, which drives the vibration box 34 to rotate together. The ball 35 inside the vibration box 34 can move irregularly under the action of rotation and repeatedly collide with the inner wall of the vibration box 34. The collision between the ball 35 and the vibration box 34 can be transmitted to the valve body 1 through the box body 3 and the partition 14. This allows the valve seat 17 on the partition 14 and the mesh plate 18 in the vertical interface 12 to shake off the particulate impurities attached to the surface under the action of vibration, improve the smoothness of the inner wall of the valve seat 17, and extend the service life of the mesh plate 18. In addition, the box body 3 can enclose and protect the first gear 32 and the second gear 33 to reduce the impact of particulate impurities in the valve body 1 on it.The internal components of valve body 1 can be heated by high-temperature radiation, typically reaching 200℃. At room temperature, when the spring and compressed air are in equilibrium, the slide rod 43 is flush with the inner wall of the vibration box 34. As the temperature rises, the compressed air pressure increases, pushing the piston plate 42 to compress the spring and causing the slide rod 43 to protrude from the inner wall of the vibration box 34. This increases the collision area of ​​the ball 35 within the vibration box 34, improving its vibration effect. Furthermore, the higher the temperature, the larger the collision area of ​​the ball 35 within the vibration box 34. If the temperature inside the valve body 1 becomes too high, the cylinder 4 may rupture due to the internal gas pressure. In this case, the rupture disc 5 will rupture before the cylinder 4, and the rupture disc 5 will make a sound when it ruptures, thus protecting the cylinder 4 and promptly alerting the staff to perform maintenance. During maintenance, the air inlet 6 can be connected to an air pump, and compressed air can be delivered to the partition 14 through the air inlet 6 and the air distribution plate 62. The air can be ejected from the air outlet 63 in the valve seat 17 to purify the valve seat. The inner wall of valve seat 17 is backflushed to reduce residual particulate impurities on valve seat 17; the protective layer 7 can be made of porous material. By setting the protective layer 7, the protective layer 7 can block the air outlet 63, thereby reducing the possibility of particulate impurities entering the interior of partition 14 through the air outlet 63; when the protective layer 7 is made of thin film material, when the air outlet 63 is sprayed, the airflow can flow along the gap between the air outlet 63 and the protective layer 7 and flow out from the exhaust hole 8 at the edge. The protective layer 7 can vibrate under the action of airflow, thereby reducing the particulate impurities attached to the protective layer 7; when the valve plate 16 expands axially under high temperature, the metal bellows 92 will be compressed under the expansion of the second connecting plate 94, and the second connecting plate 94, along with the positioning rod 93, will move upward along the first connecting plate 9, thereby offsetting the thermal stress on the output end of cylinder 15 when the valve plate 16 expands; by setting the elastic cloth 10, the elastic cloth 10 can seal and protect the metal bellows 92, reducing the impurities remaining in the gaps on the surface of the metal bellows 92.

[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A reversing valve for a ladle baking oven, comprising a valve body (1), characterized in that: A pair of vertical interfaces (12) are provided on one side of the valve body (1), and the pair of vertical interfaces (12) are vertically symmetrically distributed; a pair of horizontal interfaces (13) are provided on the other side of the valve body (1), and the pair of horizontal interfaces (13) are horizontally symmetrically distributed; a partition (14) is fixedly connected to the inner wall of the valve body (1), and the partition (14) has an I-shaped structure; a pair of valve seats (17) are provided on both sides of the partition (14), and each pair of adjacent valve seats (17) is vertically symmetrically distributed; a pair of cylinders (15) are fixedly connected to the top of the valve body (1); a valve plate (16) is installed at the output end of the cylinder (15), and the valve plate (16) is fitted to the inner wall of the valve seat (17); a mesh plate (18) is fixedly connected to the inner wall of the vertical interface (12). The valve body (1) is internally symmetrically connected to a pair of rotating shafts (22), and the partition plate (14) is located between the pair of rotating shafts (22); a motor (2) is fixedly connected to one side of the valve body (1); the output end of the motor (2) is fixedly connected to one of the rotating shafts (22); the ends of the pair of rotating shafts (22) are driven by a sprocket and chain; a brush plate (23) is fixedly connected to the other end of the rotating shaft (22), and the brush plate (23) and the mesh plate (18) are correspondingly arranged; A first gear (32) is fixedly connected to the middle of the rotating shaft (22); a second gear (33) is provided on one side of the first gear (32); a box (3) is fitted around the first gear (32) and the second gear (33), and the box (3) and the partition (14) are fixedly connected; the second gear (33) is rotatably connected to the box (3), and the rotating shaft (22) is through-connected to the box (3) and rotatably connected; a vibration box (34) is fixedly connected to both ends of the second gear (33); the vibration box (34) has a cavity inside, and at least one sphere (35) is provided in the cavity. The inner wall of the vibration box (34) is provided with a plurality of sliding rods (43); the end of the sliding rod (43) is fixedly connected to a piston plate (42); a cylinder (4) is sleeved on the outside of the piston plate (42), and the piston plate (42) and the cylinder (4) are slidably connected; the cylinder (4) and the vibration box (34) are fixedly connected; a spring is fixedly connected between the piston plate (42) and one side of the inner wall of the cylinder (4); the other side of the inner wall of the piston plate (42) and the cylinder (4) is filled with compressed air.

2. The reversing valve of a ladle baking apparatus according to claim 1, characterized in that: A gas distribution plate (62) is fixedly connected to one side of the valve body (1); an air inlet (6) is connected in the middle of the gas distribution plate (62); the gas distribution plate (62) and the partition plate (14) are connected; and multiple air outlets (63) are opened on the inner wall of the valve seat (17).

3. The reversing valve of a ladle baking apparatus according to claim 2, characterized in that: The valve seat (17) has a protective layer (7) fixed to its inner wall.

4. The reversing valve of a ladle baking apparatus according to claim 3, characterized in that: The piston plate (42) is provided with a rupture disc (5) at its end.

5. The reversing valve of a ladle baking apparatus according to claim 4, characterized in that: The outer wall of the protective layer (7) is provided with multiple exhaust holes (8), and adjacent exhaust holes (8) are staggered.

6. The reversing valve of a ladle baking apparatus according to claim 5, characterized in that: The cylinder (15) output end is fixedly connected to a first connecting plate (9); the valve plate (16) top is fixedly connected to a second connecting plate (94); the second connecting plate (94) top is fixedly connected to a plurality of positioning rods (93), and the positioning rods (93) and the first connecting plate (9) are through-connected and slidably connected; the positioning rods (93) top is provided with a limiting nut; a metal bellows (92) is fixedly connected between the first connecting plate (9) and the second connecting plate (94).

7. The reversing valve of a ladle baking apparatus according to claim 6, characterized in that: The metal corrugated pipe (92) is provided with an elastic cloth (10) on its outside; the elastic cloth (10) is fixedly installed between the first connecting plate (9) and the second connecting plate (94).

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