Tundish dry material automatic feeding method and automatic feeding device

Abstract

The invention discloses an automatic dry material feeding method and an automatic feeding device for a tundish, the automatic feeding device is used for feeding a dry material into a tundish body, and the method comprises the steps of supplementing the dry material, screening the dry material, conveying the dry material, applying the dry material and cleaning impurities and packaging bag scraps. Bagged dry materials are directly placed in the stock bin, wall breaking is conducted on the bagged dry materials through the cutter assembly, the materials are scattered, through the screening and conveying effects of the screening mechanism and the discharging mechanism, the homogenized pure materials are conveyed into the discharging channel, the downward sliding speed and flow of powder are controlled through the material guiding thin pipe and the spiral auger, and the powder can be conveyed into the discharging channel through the material guiding thin pipe and the spiral auger. And the motor car is controlled to move along the surrounding track, so that the output end of the conveying hose moves along the application area of the tundish body to uniformly apply the materials, accurate operation control is realized, the uniformity of the materials applied in the tundish is improved, meanwhile, dust generated in the application process is collected, the material supplementing process is relatively efficient, time and labor are saved, and the material supplementing efficiency is improved. And the safety is obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgy, in particular to an automatic feeding method and an automatic feeding device for dry materials in a tundish. Background Art

[0002] There are usually two types of tundishes used in steelmaking and continuous casting: dry material tundish and spray material tundish. The dry material tundish has the characteristics of good stability and long service life. Dry material is usually added manually, which is dusty, inconvenient to carry, and labor-intensive for workers. The use of automatic feeding devices can reduce manual labor and dust generation, making it easier to operate on site.

[0003] The automatic feeding device in the prior art usually requires manual pouring of bagged dry materials onto the transmission mechanism, and then the feeding mechanism is used to transport the materials to the tundish. The materials are applied unevenly, which affects the processing quality of the tundish. In addition, the process requires manual continuous small-scale feeding, which is time-consuming and labor-intensive, and the packaging bags need to be removed frequently, resulting in low work efficiency and safety hazards.

[0004] Therefore, it is necessary to develop an automatic feeding method and an automatic feeding device for dry materials in a tundish. Summary of the invention

[0005] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art and to provide an automatic feeding method and an automatic feeding device for dry materials in a tundish. The method places the bagged dry materials directly in the silo, breaks the wall with a cutter assembly, scatters the materials, and screens and transmits them through a screening mechanism and a feeding mechanism. The homogeneous pure materials are transmitted to the inside of a discharge channel. The speed and flow rate of the powder materials sliding down are controlled by a material guide tube and a spiral auger, and the moving vehicle is controlled to move along the orbital track so that the output end of the conveying hose moves along the application area of ​​the tundish body to evenly apply the materials, thereby achieving precise operation control to solve the problems raised in the background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A method for automatically feeding dry materials into a tundish, using an automatic feeding device to feed the dry materials into a tundish body, the automatic feeding device comprising a bracket, the bracket being mounted on a driving vehicle, a silo being mounted on the top of the bracket, and a feeding mechanism, a screening mechanism and a feeding mechanism being arranged in the silo, the feeding mechanism, the screening mechanism and the feeding mechanism being arranged in sequence from top to bottom, and a feeding control mechanism being arranged at the output end of the feeding mechanism, a surrounding track being arranged outside the tundish body, and the driving vehicle moving along the surrounding track;

[0008] The steps for adding dry materials into the tundish body are as follows:

[0009] S1. Supplementary dry material: Put the bagged dry material into the bin as a whole, and use the feeding mechanism to break the outer packaging of the bagged dry material. Under the action of gravity, the dry material in the packaging bag spills out and is evenly scattered on the screening mechanism. The empty packaging bag can be automatically separated and discharged;

[0010] S2. Screening dry material: Use the screening mechanism to aggregate and jitter-screen the received dry material, clean out the impurities and packaging bag debris mixed in the material, and the screened dry material is transmitted to the output part of the bin through the feeding mechanism;

[0011] S3. Conveying dry material: Use the feeding control mechanism to accurately control the quantity of the material at the output part of the bin, and further convey it, and send it to the top of the tundish body through the conveying hose;

[0012] S4. Applying dry material: Align the output end of the conveying hose with the application area of the tundish body, drive the drive switch of the feeding control mechanism, control the moving car to move along the surrounding track, so that the output end of the conveying hose moves along the application area of the tundish body to evenly apply the material, and collect the dust generated during the application process at the same time;

[0013] S5. Cleaning impurities and packaging bag debris: After the material application is completed, clean the screened impurities and packaging bag debris, and let the collected dust fall into the tundish body before the next use.

[0014] An automatic feeding device for implementing the automatic feeding method of tundish dry material. The feeding mechanism includes a cutter assembly and a partition plate fixedly connected to the inner wall of the bin. The partition plate is in the shape of a downward-sloping arc plate structure. A bag discharge port is opened on the side wall of the bin at the position corresponding to the top end of the partition plate, and a baffle is integrally provided at the end position of the partition plate corresponding to the bag discharge port. A number of uniformly distributed strip holes are opened on the surface of the partition plate;

[0015] The cutter assembly is located below the partition plate. The cutter assembly includes a plurality of first serrated blades and second serrated blades. The plurality of first serrated blades and second serrated blades are evenly distributed and arranged alternately. Each first serrated blade and second serrated blade is respectively installed on the corresponding U-shaped plate. The bottom end of the U-shaped plate is hinged with a U-shaped plate, and adjacent two U-shaped plates are centrosymmetrically distributed. One ends of the plurality of U-shaped plates on the same side away from the U-shaped plate are combined by a plurality of transmission rods. The transmission rods at both ends penetrate the side wall of the bin and are rotatably connected to the through holes. The two groups of transmission rods are connected by a first belt to synchronously drive the transmission rods on both sides to make the plurality of first serrated blades and second serrated blades alternately pass through the strip holes to cut the bagged dry material and push the packaging bag.

[0016] Preferably, the unloading mechanism comprises a feeding hopper slidably connected inside the silo, a discharge channel is provided at the bottom of one side of the silo, the inner bottom wall of the feeding hopper is inclined, and the output port of the feeding hopper is connected to the input port of the discharge channel;

[0017] The bottom wall of the silo is provided with a through groove, and positioning seats fixedly connected to the silo are provided on both sides of the through groove, and an axle rod is rotatably connected between the two positioning seats, the bottom wall of the silo is fixedly connected to the first driving motor, and the output end of the first driving motor drives the transmission shaft, and a tensioning roller is rotatably connected to the side wall of the silo, and a first pulley matching the first belt transmission is provided on the tensioning roller, and the tensioning roller and the end of the shaft rod are fixedly connected to the second pulley, and the two second pulleys are connected by a second belt transmission, an eccentric block is fixedly connected to the outside of the shaft rod, and the eccentric block intermittently touches the bottom wall of the hopper as the shaft rod rotates, and sliding rods are fixedly connected to the four corners of the bottom of the hopper, the sliding rod passes through the bottom wall of the silo and is slidably connected to the through hole, a nut is installed at the bottom end of the sliding rod, and a first spring member is sleeved on the outside of the sliding rod and located between the nut and the bottom wall of the silo.

[0018] Preferably, a buffer gasket is sleeved on the outer side of the slide rod, and the buffer gasket is arranged between the bottom wall of the feeding hopper and the inner bottom wall of the silo, and the buffer gasket is made of rubber material.

[0019] Preferably, the screening mechanism includes a screening funnel movably connected to the inner wall of the silo, a slide plate is integrally provided on the outer top of the screening funnel, a support block is fixedly connected to the inner wall of the silo, and a plurality of evenly distributed second spring members are provided between the slide plate and the support block, and a vibration motor is installed on the screening funnel.

[0020] Preferably, the screening funnel comprises a screening mesh plate, one side of which is in contact with the inner wall of the silo, and a cleaning port is provided at a position on the silo corresponding to the screening mesh plate, and the other three sides of the screening mesh plate are respectively integrally provided with slope plates.

[0021] Preferably, a closed door is hinged in the cleaning port, and the closed door is locked to the silo by a latch.

[0022] Preferably, the material discharge control mechanism comprises a material guiding capillary tube, a spiral auger is movably arranged inside the material guiding capillary tube, a second drive motor is installed on one side of the material guiding capillary tube, and the output end of the second drive motor drives the middle shaft of the spiral auger.

[0023] Preferably, the discharge channel is configured to be funnel-shaped, the top end of the material-guiding capillary is welded to the discharge channel output port and is internally connected, the output end of the material-guiding capillary is docked and installed with a conveying hose and is internally connected, and the output end of the conveying hose is connected to a protective cover.

[0024] The automatic feeding device also includes a dust collecting mechanism for absorbing dust raised in the protective cover. The dust collecting mechanism includes a dust collector. The input end of the dust collector extends to the top inner side of the protective cover through a negative pressure pipe. The output end of the dust collector is provided with a dust collecting box.

[0025] The present invention has the following beneficial effects:

[0026] 1. By placing the bagged dry material directly in the silo, using the cutter assembly to break the wall, the material is scattered, and after screening and transmission by the screening mechanism and the feeding mechanism, the homogeneous pure material is transmitted to the inside of the discharge channel. The speed and flow of the powder sliding down are controlled by the material guide tube and the spiral auger, and the motor car is controlled to move along the orbit, so that the output end of the conveying hose moves along the application area of ​​the tundish body to evenly apply the material, so as to achieve precise operation control, improve the uniformity of material application in the tundish, and collect the dust generated during the application process. The feeding process is more efficient and saves time and effort;

[0027] 2. The bagged dry material is processed by the feeding mechanism. The partition is inclined and has an arc, which is convenient for the material to fall. The first serrated knife and the second serrated blade flip from the lower part of the partition to the higher part, which can move the empty packaging bag upward and discharge it from the bag discharge port. No manual cleaning is required, and continuous feeding operation is realized to avoid the cutter assembly from hurting the human body. The safety is significantly improved. The output end of the conveying hose is connected to a protective cover to convey the material to the tundish, which can cover the dust and reduce the dust. After the material is applied, open the closed door and take out the screened impurities and packaging bag debris from the cleaning port, which is convenient for cleaning and maintenance;

[0028] 3. Through the feeding mechanism and the dust collection mechanism, the raised dust is collected in the dust collection box. After the feeding is completed, the cover under the dust collection box is opened before the next use, and the dust falls into the middle bag and continues to be used as dry material, thereby reducing waste and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of an automatic feeding device used in the method for automatically feeding dry materials in a tundish of the present invention;

[0030] Figure 2 A diagram showing the use status of the automatic feeding device provided by the present invention;

[0031] Figure 3 A three-dimensional diagram of the silo and its assembly structure provided by the present invention;

[0032] Figure 4 A first-perspective stereogram of the silo and its assembly structure (cutaway state) provided by the present invention;

[0033] Figure 5A second perspective view of the silo and its assembly structure (cutaway state) provided by the present invention;

[0034] Figure 6 A third perspective view of the silo and its assembly structure (cutaway state) provided by the present invention;

[0035] Figure 7 A front view of the silo and its assembly structure (cutaway state) provided by the present invention;

[0036] Figure 8 A three-dimensional view of the cutter assembly provided by the present invention.

[0037] Among them are:

[0038] Silo-1; discharge channel-2; partition-3; screening funnel-4; feeding hopper-5; tundish body-6; strip hole-7; cutter assembly-8; first drive motor-9; unloading control mechanism-10; conveying hose-11; through slot-12; bag discharge port-13; shaft-14; stopper-15; tension roller-16; slide bar-17; nut-18; first spring member-19; buffer gasket-20; slide plate-21; support block-22; second spring member-23; vibration motor-24; cleaning port-25; closed door-26; protective cover-27; dust collection mechanism-28; bracket-29; drive vehicle-30; second belt-31; eccentric block-32; orbital track-33;

[0039] Screening mesh plate-401; Slope plate-402;

[0040] First sawtooth blade-801; second sawtooth blade-802; U-shaped plate-803; U-shaped plate-804; transmission rod-805; first belt-806;

[0041] Material guiding tube-101; spiral auger-102; second driving motor-103;

[0042] Vacuum cleaner-281; ​​negative pressure pipe-282; dust collection box-283. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "left side", "right side", "upper part", "lower part", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not represent the importance of components, so it cannot be understood as a limitation to the present invention. The specific dimensions adopted in this embodiment are only for illustrating the technical solution by way of example and do not limit the protection scope of the present invention.

[0045] As Figure 1-8 shown, an automatic feeding method for tundish dry materials uses an automatic feeding device to send dry materials into the tundish body 6. The automatic feeding equipment includes a bracket 29, the bracket 29 is installed on a driving vehicle 30, a silo 1 is installed at the top of the bracket 29, and a replenishing mechanism, a screening mechanism and a feeding mechanism are arranged in the silo 1. The replenishing mechanism, the screening mechanism and the feeding mechanism are arranged in sequence from top to bottom, and a feeding control mechanism 10 is arranged at the output end of the feeding mechanism. A surrounding track 33 is arranged outside the tundish body 6, and the driving vehicle 30 moves along the surrounding track 33;

[0046] The replenishing mechanism includes a cutter assembly 8 and a partition plate 3 fixedly connected to the inner wall of the silo 1. The partition plate 3 is an arc-shaped plate structure inclined downward. A bag discharging port 13 is opened on the side wall of the silo 1 at the position corresponding to the top end of the partition plate 3, and a baffle 15 is integrally arranged at the end position of the partition plate 3 located at the bag discharging port 13. A plurality of uniformly distributed strip-shaped holes 7 are opened on the surface of the partition plate 3;

[0047] The cutter assembly 8 is located below the partition plate 3, and the cutter assembly 8 includes a plurality of first serrated blades 801 and second serrated blades 802. The plurality of first serrated blades 801 and second serrated blades 802 are evenly distributed and arranged alternately. Each first serrated blade 801 and second serrated blade 802 is respectively installed on a corresponding C-shaped plate 803. The bottom end of the C-shaped plate 803 is hinged with a U-shaped plate 804, and adjacent two U-shaped plates 804 are centrosymmetrically distributed. One ends of the plurality of U-shaped plates 804 located on the same side away from the C-shaped plate 803 are combined by a plurality of transmission rods 805. The transmission rods 805 located at both ends penetrate through the side wall of the silo 1 and are rotationally connected with through holes. The two groups of transmission rods 805 are传动连接 by a first belt 806 to synchronously drive the transmission rods 805 on both sides to make the plurality of first serrated blades 801 and second serrated blades 802 alternately pass through the strip-shaped holes 7 to cut the bagged dry materials and push the packaging bags.

[0048] As a preferred embodiment of the feeding mechanism in the present invention:

[0049] It should be noted that there is an error in the original text where "两组传动杆805之间通过第一皮带806传动连接" is not clearly expressed in Chinese. The corrected translation of this part is "The two groups of transmission rods 805 are传动连接 by a first belt 806". You may need to check and correct the original Chinese text for a more accurate translation.The unloading mechanism includes a feeding hopper 5 slidably connected to the inside of the silo 1, a discharge channel 2 is provided at the bottom of one side of the silo 1, the inner bottom wall of the feeding hopper 5 is inclined, and the output port of the feeding hopper 5 is connected to the input port of the discharge channel 2;

[0050] A through groove 12 is provided on the bottom wall of the silo 1, and positioning seats fixedly connected to the silo 1 are provided on both sides of the through groove 12, and a shaft 14 is rotatably connected between the two positioning seats, a first drive motor 9 is fixedly connected to the bottom wall of the silo 1, and the output end of the first drive motor 9 drives the shaft 14, a tensioning roller 16 is rotatably connected to the side wall of the silo 1, and the tensioning roller 16 is provided with a first pulley that cooperates with the first belt 806 for transmission, the tensioning roller 16 and the ends of the shaft 14 are fixedly connected to a second pulley, and the two second pulleys are connected for transmission by a second belt 31, an eccentric block 32 is fixedly connected to the outside of the shaft 14, and the eccentric block 32 intermittently touches the bottom wall of the feeding hopper 5 as the shaft 14 rotates, and sliding rods 17 are fixedly connected to the four corners of the bottom of the feeding hopper 5, the sliding rod 17 passes through the bottom wall of the silo 1 and is slidably connected to the through hole, a nut 18 is installed at the bottom end of the sliding rod 17, and a first spring member 19 is sleeved on the outside of the sliding rod 17 and between the nut 18 and the bottom wall of the silo 1

[0051] Specifically, a buffer gasket 20 is sleeved on the outer side of the slide rod 17, which is used for buffering protection between the feeding hopper 5 and the inner wall of the silo 1 to extend the service life of the device, and the buffer gasket 20 is arranged between the bottom wall of the feeding hopper 5 and the inner bottom wall of the silo 1, and the buffer gasket 20 is made of rubber material.

[0052] As a preferred embodiment of the screening mechanism in the present invention:

[0053] The screening mechanism includes a screening funnel 4 movably connected to the inner wall of the silo 1, a slide plate 21 is integrally provided on the outer top of the screening funnel 4, a support block 22 is fixedly connected to the inner wall of the silo 1, and a plurality of evenly distributed second spring members 23 are provided between the slide plate 21 and the support block 22, and a vibration motor 24 is installed on the screening funnel 4.

[0054] As a preferred embodiment of the screening funnel 4 in the present invention:

[0055] The screening funnel 4 includes a screening mesh plate 401, one side of which is in contact with the inner wall of the silo 1, and a cleaning port 25 is provided at a position on the silo 1 corresponding to the screening mesh plate 401, and the other three sides of the screening mesh plate 401 are respectively provided with slope plates 402; the slope plates 402 are used to aggregate the materials to the screening mesh plate 401, and the materials are screened out in coordination with the shaking of the screening funnel 4, and the remaining impurities can be discharged from the cleaning port 25.

[0056] Specifically, a closed door 26 is hinged in the cleaning port 25, and the closed door 26 and the silo 1 are locked by a latch. When working, the closed door 26 is used to close the cleaning port 25 to reduce the impact of dust.

[0057] As a preferred embodiment of the material feeding control mechanism 10 in the present invention:

[0058] The material discharge control mechanism 10 includes a material guiding tube 101, inside which a spiral auger 102 is movably arranged, a second drive motor 103 is installed on one side of the material guiding tube 101, and the output end of the second drive motor 103 drives the middle shaft of the spiral auger 102; specifically, the second drive motor 103 is fixed on the outside of the material guiding tube 101, and the output end of the second drive motor 103 drives the middle shaft of the spiral auger 102 through gears, so that the spiral auger 102 rotates to transport the material.

[0059] In order to facilitate the transportation of materials, the discharge channel 2 is configured to be funnel-shaped, the top of the material-guiding capillary 101 is welded to the output port of the discharge channel 2 and is internally connected, the output end of the material-guiding capillary 101 is docked and installed with the conveying hose 11 and is internally connected, and the output end of the conveying hose 11 is connected to a protective cover 27. When the dry material is delivered to the intermediate bag, the protective cover 27 is used to prevent dust from flying.

[0060] The automatic feeding device also includes a dust collecting mechanism 28 for absorbing dust raised in the protective cover 27. The dust collecting mechanism 28 includes a dust collector 281. The input end of the dust collector 281 extends to the top inner side of the protective cover 27 through a negative pressure pipe 282. The output end of the dust collector 281 is provided with a dust collecting box 283.

[0061] The steps of adding dry material into the tundish body 6 are as follows:

[0062] S1. Replenishing dry materials: Put the whole bagged dry materials into the silo 1, and use the feeding mechanism to break the outer packaging of the bagged dry materials. Specifically, start the first drive motor 9, the second drive motor 103 and the vibration motor 24. The transmission shaft 14 at the output end of the first drive motor 9 cooperates with the transmission tensioning roller 16 through the second belt 31 and the two second pulleys. Under the transmission of the first belt 806, the transmission rods 805 on both sides rotate synchronously, and the U-shaped plate 804 drives the first serrated blades 801 and the second serrated blades 802 to alternately pass through the strip holes 7 to cut the bottom of the bagged dry materials. After the packaging bag is cut, the dry materials in the packaging bag are scattered out under the action of gravity and evenly scattered on the screening funnel 4 of the screening mechanism. The partition 3 is inclined and has an arc to facilitate the falling of materials, and the first serrated blade 801 and the second serrated blade 802 flip from the lower part of the partition 3 to the higher part, so that the empty packaging bag can be moved up and discharged from the bag discharge port 13;

[0063] S2. Screening dry materials: The screening mechanism is used to gather and shake the received dry materials for screening, and impurities and packaging bag debris mixed in the materials are cleaned out. The screened dry materials are transmitted to the output part of the silo 1 through the unloading mechanism;

[0064] Specifically, the vibration motor 24 vibrates, and the deformation of the second spring member 23 makes the screening funnel 4 shake. The slope plate 402 is used to aggregate the materials to the screening mesh plate 401. With the shaking of the screening funnel 4, the materials are screened, and the remaining impurities can be discharged from the cleaning port 25. The screened materials fall into the feeding hopper 5. The eccentric block 32 intermittently touches the bottom wall of the feeding hopper 5 as the shaft 14 rotates. Under the limiting action of the slide bar 17 and the energy storage action of the first spring member 19, the feeding hopper 5 can shake, and the upper surface of the feeding hopper 5 is inclined, so that the dry material slides to the top of the material introduction capillary 101.

[0065] S3, conveying dry materials: using the material discharge control mechanism 10 to accurately control the amount of materials at the output part of the silo 1, and further conveying, using the conveying hose 11 to the top of the tundish body 6;

[0066] S4, applying dry material: align the output end of the conveying hose 11 with the application area of ​​the tundish body 6, drive the drive switch of the material unloading control mechanism 10, control the motor vehicle 30 to move along the orbital track 33, so that the output end of the conveying hose 11 moves along the application area of ​​the tundish body 6 to evenly apply the material, and control the speed and flow rate of the powder material sliding down through the spiral auger 102. At the same time, collect the dust generated during the application process, and cooperate with the protective cover 27 connected to the output end of the conveying hose 11 to convey the material to the tundish, which can cover the dust and reduce the dust from floating.

[0067] S5. Cleaning impurities and bag debris: After the material is applied, open the closed door 26, take out the sieved impurities and bag debris from the cleaning port 25, and drop the collected dust into the tundish body 6 before the next use. After the material is added, open the cover under the dust collection box 283 before the next use, and drop the dust into the tundish for continued use as dry material to reduce waste.

[0068] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A method for automatically feeding dry materials into a tundish, using an automatic feeding device to feed dry materials into a tundish body (6), characterized in that: The automatic feeding device comprises a bracket (29), the bracket (29) is mounted on a driving vehicle (30), a silo (1) is mounted on the top of the bracket (29), and a feeding mechanism, a screening mechanism and a feeding mechanism are arranged in the silo (1), the feeding mechanism, the screening mechanism and the feeding mechanism are arranged in sequence from top to bottom, and a feeding control mechanism (10) is arranged at the output end of the feeding mechanism, a surrounding track (33) is arranged on the outer side of the tundish body (6), and the driving vehicle (30) moves along the surrounding track (33); The steps of adding dry material into the tundish body (6) are as follows: S1. Replenishing dry materials: the bagged dry materials are put into the silo (1) and the outer packaging of the bagged dry materials is broken by the feeding mechanism. Under the action of gravity, the dry materials in the packaging bags are scattered and evenly scattered on the screening mechanism. The empty packaging bags can be automatically separated and discharged; S2. Screening dry materials: using the screening mechanism to gather and shake the received dry materials for screening, cleaning out impurities and packaging bag debris mixed in the materials, and the screened dry materials are transferred to the output part of the silo (1) through the unloading mechanism; S3, conveying dry materials: using the material discharge control mechanism (10) to accurately control the amount of materials at the output part of the silo (1), and further conveying them to the top of the tundish body (6) using the conveying hose (11); S4, applying dry material: aligning the output end of the conveying hose (11) with the application area of ​​the tundish body (6), driving the driving switch of the material discharge control mechanism (10), and controlling the moving vehicle (30) to move along the orbital track (33), so that the output end of the conveying hose (11) moves along the application area of ​​the tundish body (6) to evenly apply the material, and at the same time collecting the dust generated during the application process; S5. Cleaning impurities and bag debris: After the material is applied, the sieved impurities and bag debris are cleaned, and the collected dust is dropped into the tundish body (6) before the next use.

2. An automatic feeding device applied to the automatic feeding method of tundish dry material according to claim 1, characterized in that: The feeding mechanism comprises a cutting knife assembly (8) and a partition (3) fixedly connected to the inner wall of the silo (1), the partition (3) being a downwardly inclined arc-shaped plate structure, a bag discharge opening (13) being provided on the side wall of the silo (1) and corresponding to the top position of the partition (3), and a stopper (15) being integrally provided on the partition (3) at the end position of the bag discharge opening (13), and a plurality of evenly distributed strip holes (7) being provided on the surface of the partition (3); The cutter assembly (8) is located below the partition plate (3), and the cutter assembly (8) includes a plurality of first serrated blades (801) and second serrated blades (802). The plurality of first serrated blades (801) and second serrated blades (802) are evenly distributed and arranged alternately. Each first serrated blade (801) and second serrated blade (802) is respectively installed on a corresponding C-shaped plate (803). The bottom end of the C-shaped plate (803) is hinged with a U-shaped plate (804), and two adjacent U-shaped plates (804) are symmetrically distributed about the center. The ends of the plurality of U-shaped plates (804) on the same side away from the C-shaped plate (803) are combined through a plurality of transmission rods (805). The transmission rods (805) at both ends penetrate through the side wall of the silo (1) and are rotatably connected to the through holes. The two groups of transmission rods (805) are传动连接 by a first belt (806) to synchronously drive the transmission rods (805) on both sides, so that the plurality of first serrated blades (801) and second serrated blades (802) alternately pass through the strip-shaped holes (7) to cut the bagged dry materials and push the packaging bags.

3. The automatic feeding device according to claim 2, characterized in that: The feeding mechanism includes a feeding hopper (5) slidably connected inside the silo (1). A discharge channel (2) is provided at the bottom of one side of the silo (1). The inner bottom wall of the feeding hopper (5) is inclined, and the output port of the feeding hopper (5) is docked with the input port of the discharge channel (2). A through groove (12) is formed in the bottom wall of the silo (1). Positioning seats fixedly connected to the silo (1) are provided on both sides of the through groove (12), and a shaft rod (14) is rotatably connected between the two positioning seats. A first driving motor (9) is fixedly connected to the bottom wall of the silo (1), and the output end of the first driving motor (9) drives the shaft rod (14). A tensioning roller (16) is rotatably connected to the side wall of the silo (1). A first pulley in transmission cooperation with the first belt (806) is provided on the tensioning roller (16). Second pulleys are fixedly connected to the ends of the tensioning roller (16) and the shaft rod (14), and the two second pulleys are传动连接 by a second belt (31). An eccentric block (32) is fixedly connected to the outside of the shaft rod (14), and the eccentric block (32) intermittently touches the bottom wall of the feeding hopper (5) as the shaft rod (14) rotates. Sliding rods (17) are fixedly connected to the four corners of the bottom of the feeding hopper (5). The sliding rods (17) penetrate through the bottom wall of the silo (1) and are slidably connected to the through holes. A lead nut (18) is installed at the bottom end of the sliding rod (17). A first spring member (19) is sleeved on the outside of the sliding rod (17) between the lead nut (18) and the bottom wall of the silo (1).

4. The automatic feeding device according to claim 3, characterized in that: A buffer gasket (20) is sleeved on the outside of the sliding rod (17), and the buffer gasket (20) is disposed between the bottom wall of the feeding hopper (5) and the inner bottom wall of the silo (1). The buffer gasket (20) is made of rubber material.

5. The automatic feeding device according to claim 2, characterized in that: The screening mechanism comprises a screening funnel (4) movably connected to the inner wall of a silo (1), a slide plate (21) is integrally arranged at the outer top end of the screening funnel (4), a support block (22) is fixedly connected to the inner wall of the silo (1), and a plurality of evenly distributed second spring members (23) are arranged between the slide plate (21) and the support block (22), and a vibration motor (24) is installed on the screening funnel (4).

6. The automatic feeding device according to claim 5, characterized in that: The screening funnel (4) comprises a screening mesh plate (401), one side of the screening mesh plate (401) is in contact with the inner wall of the silo (1), and a cleaning port (25) is provided at a position on the silo (1) corresponding to the screening mesh plate (401), and the other three sides of the screening mesh plate (401) are respectively integrally provided with slope plates (402).

7. The automatic feeding device according to claim 6, characterized in that: A closed door (26) is hinged inside the cleaning port (25), and the closed door (26) and the silo (1) are locked by a latch.

8. The automatic feeding device according to claim 3, characterized in that: The material discharge control mechanism (10) comprises a material guiding capillary (101), a spiral auger (102) being movably arranged inside the material guiding capillary (101), a second drive motor (103) being installed on one side of the material guiding capillary (101), and an output end of the second drive motor (103) driving the middle shaft of the spiral auger (102).

9. The automatic feeding device according to claim 8, characterized in that: The discharge channel (2) is configured to be funnel-shaped, the top end of the material-introducing capillary (101) is welded to the discharge port of the discharge channel (2) and the interior of the material-introducing capillary (101) is connected, the output end of the material-introducing capillary (101) is docked and installed with the delivery hose (11) and the interior of the delivery hose (11), and the output end of the delivery hose (11) is connected to a protective cover (27).

10. The automatic feeding device according to claim 9, characterized in that: It also includes a dust collection mechanism (28) for absorbing dust raised in the protective cover (27), the dust collection mechanism (28) including a dust collector (281), the input end of the dust collector (281) extending to the top inner side of the protective cover (27) through a negative pressure pipe (282), and the output end of the dust collector (281) is provided with a dust collection box (283).

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