Quantitative additive feeding device and application of quantitative additive feeding device in less-slag smelting of steel and iron

Abstract

The invention belongs to the technical field of additive quantitative feeding, and particularly relates to an additive quantitative feeding device and application of the additive quantitative feeding device to less-slag steel smelting, the additive quantitative feeding device comprises a frame body assembly, a hoisting assembly is arranged above the frame body assembly, a cutting assembly is arranged below the hoisting assembly, and flapping assemblies are arranged on the two sides of the cutting assembly; a feeding assembly is arranged below the cutting assembly; the frame body assembly comprises supporting frames, a reinforcing frame is arranged between every two opposite supporting frames, and a mounting frame is arranged between the other two supporting frames; the hoisting assembly comprises a square block, a plurality of connecting blocks are evenly arranged on the circumferential side face of the square block, and hook grooves are formed in the tops of the connecting blocks; the quantitative additive feeding device is easy to operate, safe, stable, accurate in feeding amount, high in feeding efficiency, high in adaptability and high in stability, the large-batch feeding requirement is met, and operators can conveniently, accurately and efficiently feed needed additives into the rotary calcining furnace.

Description

Technical Field

[0001] The present invention belongs to the technical field of quantitative dosing of additives, and particularly relates to a quantitative dosing device for additives and its application in steelmaking with less slag. Background Art

[0002] At present, the deoxidizers used in production mainly include common deoxidizers such as ferromanganese, ferrosilicon, aluminum, etc. and composite deoxidizers such as Al-Mg, Si-Ca-Ba, Si-Al-Fe, Si-Al-Ba-Fe, RE-Al-Fe, etc. Some steel mills also use synthetic slag for deoxidation. After the production of the deoxidizer is completed, a quantitative dosing device is needed to put it into the rotary calciner and improve the calcination effect.

[0003] Chinese invention patent CN106629108A relates to a quantitative dosing device, especially an industrial raw material quantitative dosing device, which includes a bracket, a treatment box, a first pulley, a pulling rope, a second pulley, a contact wheel, a fixed block, a second spring, a lifting rod, a knocking block, a wedge block, a first spring, etc.; the dosing accuracy of this quantitative dosing device is low and the dosing effect is poor.

[0004] Chinese invention patent CN113911762B discloses a chemical material quantitative dosing device convenient for feeding, which includes a main body, and the top of the main body is movably connected with a top cover; the operation difficulty of this dosing device is large and the dosing efficiency is low.

[0005] When the above-mentioned quantitative dosing device realizes the quantitative dosing of additives, the dosing efficiency of additives is low after the bottom of the ton bag is cut, and the dosing continuity of additives is poor, which cannot meet the requirements of rapid and efficient dosing of additives.

[0006] At the same time, as the additives inside the ton bag are continuously dosed, the weight and stacking position of the additives inside the ton bag change correspondingly, and the prior art cannot adjust the tapping position and tapping strength accordingly, thereby reducing the dosing stability of subsequent additives.

[0007] Moreover, the additives inside the ton bag are prone to accumulate at the opening during the dosing process. At this time, only tapping on both sides of the ton bag still cannot make the additives blocked at the lower opening drop downward, thereby reducing the dosing efficiency and dosing quality of the additives.

[0008] And as the additives inside the ton bag are continuously and continuously dosed, some additives are likely to adhere to the outer surface of the ton bag and the inner wall of the dosing hopper. Moreover, when the dosing of the additives inside the ton bag is completed, the additives are prone to partial caking and adhering on the inner wall of the ton bag. If accurate air cleaning cannot be carried out, it will not only reduce the dosing amount of the additives, but also contaminate the subsequent additives. Summary of the Invention

[0009] In view of the above problems, the present invention provides a device for quantitatively dosing additives and its application in steel smelting with little slag.

[0010] To achieve the above object, the present invention provides the following technical solution: an additive quantitative delivery device, comprising a frame assembly, a hanging assembly is provided above the frame assembly, a cutting assembly is provided below the hanging assembly, beating assemblies are provided on both sides of the cutting assembly, and a delivery assembly is provided below the cutting assembly; The frame assembly includes a support frame, a reinforcement frame is provided between two facing support frames, and a mounting frame is provided between the other two support frames; The lifting assembly comprises a square block, a plurality of connecting blocks are evenly arranged on the peripheral side of the square block, a hook groove is opened on the top of the connecting block, a first weight sensor is arranged at the inner bottom of the hook groove, and a ton bag is arranged below the square block; The cutting assembly includes a plurality of wedge-shaped cutters; The flapping assembly comprises two rotating plates, the top of the rotating plates are evenly provided with a plurality of top grooves, the facing end surfaces of the two rotating plates are evenly provided with a plurality of exhaust holes, the inner sealing and sliding connection of the top grooves is provided with flapping blocks, the bottom of the flapping blocks is provided with bottom grooves, the facing end surfaces of the plurality of flapping blocks are provided with docking holes, and the top of the flapping blocks is provided with elastic expansion balls; The delivery component includes a delivery bucket.

[0011] Furthermore, a top frame is provided on the top of the support frame, a plurality of inclined frames are provided between two adjacent support frames and the top frame, a plurality of fixing pads are evenly provided on the bottom of the support frame, and a controller is provided on the outside of the reinforcement frame, and the controller electrically controls each electrical component.

[0012] Furthermore, a slide rail is provided at the bottom of the top frame, and an electric hoist is slidably connected to the outer surface of the slide rail. A lower hook is provided at the lower output end of the electric hoist. A hanging rope is provided at the top axis of the square block, and the hanging rope matches the lower hook. A plurality of lifting rings are evenly provided on the top of the ton bag, and the lifting rings match the hook grooves. The first weight sensor is used to detect the weight value of the agent dosed inside the ton bag.

[0013] Furthermore, a plurality of cross frames are provided between the two reinforcement frames, a limit block is provided on the top of the cross frame, a vertical plate is provided on one side of the limit block, the bottom of the vertical plate is fixedly connected to the top of the cross frame, a first pneumatic push rod is provided on the side facing each other of the plurality of vertical plates, a follower block is provided on the output end on the other side of the first pneumatic push rod, the top of the follower block is fixedly connected to the bottom of the wedge cutter, a matching groove is provided on the bottom of the follower block, and the inner wall of the matching groove is sealingly and slidably connected to the outer surface of the limit block.

[0014] Furthermore, two rotating shafts are symmetrically provided inside the reinforcing frame, the outer surface of the rotating shaft is movably connected with a swing sleeve, the outer surface of the swing sleeve is fixedly connected to the bottom of the rotating plate, the tops of the two mounting frames are movably connected with a second pneumatic push rod through a bearing seat, and the top output end of the second pneumatic push rod is hinged to the side wall of the rotating plate through a movable seat.

[0015] Furthermore, one end of the exhaust hole is connected to the top groove, the docking hole is connected to the bottom groove, and the docking hole matches multiple exhaust holes, the top of the top groove is connected to the bottom of the bottom groove, the inner bottom of the top groove is provided with an electric telescopic rod, the top output end of the electric telescopic rod is fixedly connected to the inner top of the bottom groove, fans are provided on the two rotating plates facing away from each other, and connecting holes are provided inside the rotating plates, one side of the connecting holes is connected to multiple top grooves, and the other end of the connecting hole is connected to the output end of the fan.

[0016] Furthermore, two arc holes are symmetrically opened on the top of the beating block, the bottom of the arc holes is connected with the inside of the bottom groove, a center hole is opened at the bottom center axis of the elastic expansion ball, the top of the arc hole is connected with the bottom of the center hole, the elastic expansion ball has elastic expansion properties, and an elastic collision block is provided between two adjacent elastic expansion balls, and the elastic collision block has elasticity.

[0017] Furthermore, two positioning plates are symmetrically provided inside the delivery bucket, a second weight sensor is provided on the top of the positioning plate, the side wall of the delivery bucket is fixedly connected to the inner wall of the support frame, the second weight sensor is used to detect the weight value above the positioning plate, and side grooves are provided on the facing end surfaces of the two positioning plates, and an electromagnetic switch valve is provided inside the side grooves.

[0018] Furthermore, a feeding shell is connected to the bottom of the delivery hopper through a recovery hole, a bottom plate is provided at the bottom of the feeding shell, a driving motor is provided on one side of the feeding shell, an output end of the driving motor passes through the feeding shell and is provided with a transmission shaft, a spiral auger is provided on the outer surface of the transmission shaft, and the outer surface of the spiral auger matches the inner wall of the feeding shell.

[0019] The application of the additive quantitative dosing device in steel smelting with less slag includes the following steps: S1, the square block hoists the ton bag and moves it above the delivery bucket, the first weight sensors detect that the weight value reaches the preset weight value, and the wedge-shaped cutter cuts the bottom of the ton bag; S2, the rotating plate rotates and drives the beating block to rotate, and the rotation of the beating block drives the elastic expansion ball to rotate and beat the side wall of the ton bag, and at the same time, the exhaust hole continuously discharges gas to exert wind force on the side wall of the ton bag, so that the side wall of the ton bag continuously shrinks and expands at a high frequency and releases internal additives; S3. When the weight value detected by the first weight sensor on a certain side increases, the slapping block moves upward along the top groove, the overlapping area between the docking hole and the exhaust hole increases, the amount of gas discharged from the exhaust hole increases, and the extrusion force applied to the side wall of the ton bag increases. When the rotating plate and the slapping block contact the side wall of the ton bag, the slapping block moves downward along the top groove and increases, the overlapping area between the docking hole and the exhaust hole decreases, the expansion size of the elastic expansion ball increases, and the collision force applied to the side wall of the ton bag increases; S4. When the delivery is completed, the weight value detected by the first weight sensor is greater than the set minimum weight preset value, the rotating plate and the beating block are inserted into the ton bag along the opening below the ton bag, the beating block moves upward along the top groove to the maximum distance, the overlapping area of ​​the docking hole and the exhaust hole reaches the maximum value, the exhaust hole discharges gas and performs wind cleaning on the ton bag and the inner wall of the delivery bucket.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the additive quantitative dosing device is simple to operate, safe and stable, meets the needs of large-scale dosing, and has accurate dosing amount, high dosing efficiency, strong adaptability and high stability, which is convenient for operators to accurately and efficiently put the required additives into the rotary calcining furnace.

[0021] 2. In the present invention, when the additives inside the ton bag are continuously put in along the lower opening, the rotating plate and the beating block continuously beat the side wall of the ton bag and improve the putting efficiency and putting stability.

[0022] 3. In the present invention, as the additive is continuously added, the gas discharged from the exhaust hole continuously applies extrusion force to the side wall of the ton bag and realizes high-frequency contraction and expansion of the side wall of the ton bag, thereby improving the efficiency of adding the additive inside the ton bag.

[0023] 4. In the present invention, after the delivery is completed, the rotating plate enters the interior of the ton bag and exhausts gas through the exhaust hole to achieve wind cleaning of the additives adhered to the inner wall of the ton bag, and the rotating plate continues to rotate to perform wind delivery cleaning on the inner wall of the delivery bucket, thereby improving the delivery effect and thoroughness of the additives, avoiding the adhesion of the additives and affecting the subsequent delivery effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from another viewing angle of the present invention; Figure 3 It is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle; Figure 5 It is a schematic diagram of a partially exploded three-dimensional structure of a hoisting assembly of the present invention; Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the cutting assembly of the present invention; Figure 7 It is a schematic diagram of the internal three-dimensional structure of the cutting assembly and the beating assembly of the present invention from the front view; Figure 8 for Figure 7 The enlarged schematic diagram of point B in the middle; Fig. 9 for Figure 7 The enlarged schematic diagram at C in the middle; Fig.10 It is a schematic diagram of the exploded three-dimensional structure of the flapping assembly of the present invention.

[0025] In the figure: 1, frame assembly; 101, support frame; 102, top frame; 103, reinforcement frame; 104, controller; 105, fixed pad; 106, inclined bracket; 107, mounting frame; 2, lifting assembly; 201, square block; 202, connecting block; 203, hook groove; 204, first weight sensor; 205, hanging rope; 206, slide rail; 207, electric hoist; 208, lower hook; 209, ton bag; 210, lifting ring; 3, cutting assembly; 301, horizontal frame; 302, vertical plate; 303, limit block; 304, first pneumatic push rod; 305, follower block; 306, matching groove; 307, wedge cutter; 4, beating assembly; 401, rotating plate; 402, top slot; 403, exhaust hole; 404, beating block; 405, docking hole; 406, bottom slot; 407, electric telescopic rod; 408, arc hole; 409, elastic expansion ball; 410, center hole; 411, elastic collision block; 412, connecting hole; 413, fan; 414, rotating shaft; 415, swing sleeve; 416, second pneumatic push rod; 417, bearing seat; 418, movable seat; 5, delivery component; 501, delivery bucket; 502, positioning plate; 503, second weight sensor; 504, side slot; 505, electromagnetic switch valve; 506, bottom plate; 507, feeding shell; 508, recovery hole; 509, transmission shaft; 510, spiral auger; 511, driving motor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1 like Figure 1 - Fig.10 As shown, the main parts of the additives and their mass proportions are: 15%≤CaO≤30%, 15%≤Al2O3≤30%TFe≤27%, S<0.5%, P<0.5%, H2O≤0.9%, particle size 10-50mm, particle size (the sum of less than 10mm and greater than 50mm) ≤8%: melting point <1330℃.

[0028] A quantitative additive dosing device includes a frame component 1. A hoisting component 2 is provided above the frame component 1. The hoisting component 2 is mainly used to hoist and transfer ton bags 209. A cutting component 3 is provided below the hoisting component 2. The cutting component 3 cuts the bottom of the ton bag 209 to facilitate the subsequent feeding of additives. Beating components 4 are provided on both sides of the cutting component 3. The beating components 4 beat the two sides of the ton bag 209, thereby improving the thoroughness and stability of the feeding of additives inside the ton bag 209. A feeding component 5 is provided below the cutting component 3. The additives inside the ton bag 209 enter the rotary calcining furnace along the feeding component 5 to assist steelmaking, thereby further improving the steelmaking efficiency and steelmaking quality.

[0029] The frame assembly 1 includes a support frame 101, and a reinforcement frame 103 is provided between two facing support frames 101. The setting of the reinforcement frame 103 further improves the supporting stability of the support frame 101. A mounting frame 107 is provided between the other two support frames 101. The mounting frame 107 facilitates the subsequent hinged support effect of the first pneumatic push rod 304. A top frame 102 is provided on the top of the support frame 101. A plurality of inclined brackets 106 are provided between the two adjacent support frames 101 and the top frame 102. The setting of the inclined brackets 106 improves the supporting stability of the support frames 101 and the top frame 102. A plurality of fixed pads 105 are evenly provided on the bottom of the support frame 101. The fixed pads 105 are elastic and further improve the buffering and shock absorbing effect of the support frame 101. A controller 104 is provided on the outside of the reinforcement frame 103. The controller 104 electrically controls each electrical component.

[0030] The lifting component 2 includes a square block 201, which mainly drives the ton bag 209 to be lifted and transferred. A plurality of connecting blocks 202 are evenly arranged on the surrounding side of the square block 201. The connecting blocks 202 mainly play a supporting and connecting role. A hook groove 203 is opened on the top of the connecting block 202, and a first weight sensor 204 is arranged at the inner bottom of the hook groove 203. The first weight sensor 204 is used to detect the weight value of the agent inside the ton bag 209. The setting of the hook groove 203 improves the stability of the lifting and transfer of the ton bag 209.

[0031] A slide rail 206 is provided at the bottom of the top frame 102, and an electric hoist 207 is slidably connected to the outer surface of the slide rail 206. A lower hook 208 is provided at the lower output end of the electric hoist 207. Therefore, the electric hoist 207 is started and drives the lower hook 208 to move synchronously under the slide rail 206. A hanging rope 205 is provided at the top axis of the square block 201, and a ton bag 209 is provided below the square block 201. A plurality of lifting rings 210 are evenly provided on the top of the ton bag 209. The setting of the lifting ring 210 further improves the stability of the lifting and transfer of the ton bag 209. The hanging rope 205 matches the lower hook 208, and the lifting ring 210 matches the hook groove 203. Therefore, the hook groove 203 and the lifting ring 210 are mutually clamped and fixed to further improve the assembly stability and support. At the same time, the movement of the lower hook 208 synchronously drives the ton bag 209 below to move.

[0032] The cutting assembly 3 includes a plurality of wedge-shaped cutters 307, which cut the bottom of the ton bag 209, thereby increasing the downward sliding of the additive inside the ton bag 209. A plurality of cross frames 301 are arranged between the two reinforcing frames 103. The cross frame 301 is an X-shaped structure. A limit block 303 is arranged on the top of the cross frame 301. The limit block 303 is mainly used for limited sliding. A vertical plate 302 is arranged on one side of the limit block 303. The bottom of the vertical plate 302 is fixedly connected to the top of the cross frame 301. A first pneumatic push rod 304 is arranged on the side facing each other of the plurality of vertical plates 302. A follower block 305 is provided at the output end on the other side of the first pneumatic push rod 304. The first pneumatic push rod 304 starts and drives the follower block 305 to move. The top of the follower block 305 is fixedly connected to the bottom of the wedge cutter 307. The movement of the follower block 305 synchronously drives the wedge cutter 307 to move. A matching groove 306 is provided at the bottom of the follower block 305. The inner wall of the matching groove 306 is sealed and slidably connected to the outer surface of the limit block 303. The matching groove 306 matches the limit block 303 and further improves the movement stability and synchronization of the follower block 305 along the top of the limit block 303.

[0033] The flapping assembly 4 includes two rotating plates 401, and the rotating plates 401 rotate to flap the side walls of the ton bag 209 for feeding. Two rotating shafts 414 are symmetrically arranged inside the reinforcing frame 103. The outer surface of the rotating shaft 414 is movably connected with a swing sleeve 415, and the outer surface of the swing sleeve 415 is fixedly connected to the bottom of the rotating plate 401. The rotating plate 401 rotates on the outer surface of the rotating shaft 414 with the help of the swing sleeve 415, so as to further achieve the flapping stability of the rotating plate 401. The tops of the two mounting frames 107 are movably connected with the second pneumatic push rod 416 through the bearing seat 417, and the top output end of the second pneumatic push rod 416 is hinged with the side wall of the rotating plate 401 through the movable seat 418. The second pneumatic push rod 416 is started and the output end drives the rotating plate 401 to swing back and forth around the rotating shaft 414 and flap and feed the lower part of the two side walls of the ton bag 209.

[0034] A plurality of top grooves 402 are evenly provided on the top of the rotating plate 401, and a beating block 404 is sealed and slidably connected inside the top groove 402. The beating block 404 moves up and down inside the top groove 402 and adjusts the beating position, thereby ensuring continuous and stable delivery of additives inside the ton bag 209. A bottom groove 406 is provided at the bottom of the beating block 404, and an elastic expansion ball 409 is provided on the top of the beating block 404. The elastic expansion ball 409 expands and correspondingly adjusts the stability of the tapping and feeding of the additives inside the ton bag 209.

[0035] The facing end surfaces of the two rotating plates 401 are evenly provided with multiple exhaust holes 403, one end of the exhaust hole 403 is connected with the top groove 402, and the gas inside the top groove 402 can be continuously and stably discharged along the exhaust hole 403, and the facing end surfaces of the multiple beating blocks 404 are provided with docking holes 405, the docking holes 405 are connected with the bottom groove 406, and the gas inside the bottom groove 406 can be continuously and stably discharged along the docking holes 405, and the docking holes 405 match the multiple exhaust holes 403, the top of the top groove 402 is connected with the bottom of the bottom groove 406, the gas inside the top groove 402 enters the bottom groove 406, and is discharged outward along the overlapping position of the docking holes 405 and the exhaust holes 403 inside the bottom groove 406, thereby realizing wind cleaning of the outer surface of the ton bag 209 and the inside of the delivery bucket 501, and continuously maintaining the continuous and stable delivery of the cutting position below the ton bag 209.

[0036] An electric telescopic rod 407 is provided at the inner bottom of the top groove 402, and the top output end of the electric telescopic rod 407 is fixedly connected to the inner top of the bottom groove 406. The electric telescopic rod 407 is started and drives the flapping block 404 to move up and down inside the top groove 402, thereby adjusting the overlapping area of ​​the docking hole 405 and the exhaust hole 403 and the amount of gas discharged to the outside. A fan 413 is provided on the two rotating plates 401 facing each other. A connecting hole 412 is provided inside the rotating plate 401. One side of the connecting hole 412 is connected to multiple top grooves 402, and the other end of the connecting hole 412 is connected to the output end of the fan 413. The controller 104 controls the fan 413 to start and pass gas into the multiple top grooves 402 along the connecting hole 412. The gas continues to flow upward along the bottom groove 406 to achieve subsequent flapping and cleaning effects.

[0037] Two arc holes 408 are symmetrically provided on the top of the beating block 404, and the bottom of the arc holes 408 is connected to the inside of the bottom groove 406, so that the gas inside the bottom groove 406 can continue to flow upward along the arc holes 408. A center hole 410 is provided at the bottom center axis of the elastic expansion ball 409, and the top of the arc hole 408 is connected to the bottom of the center hole 410. The gas inside the arc hole 408 continues to expand toward the elastic expansion ball 409 along the center hole 410. The elastic expansion ball 409 has elastic expansibility. When the amount of gas inside the elastic expansion ball 409 changes, the size of the elastic expansion ball 409 changes elastically. An elastic collision block 411 is provided between two adjacent elastic expansion balls 409. The elastic collision block 411 is elastic. When the elastic expansion ball 409 expands, the position of the elastic collision block 411 is simultaneously driven to change, thereby adjusting the collision position of the elastic collision block 411 on the outer surface of the ton bag 209, thereby improving the continuity and accuracy of the delivery of additives inside the ton bag 209.

[0038] The delivery component 5 includes a delivery bucket 501, and the additive is continuously delivered downward along the delivery bucket 501. Two positioning plates 502 are symmetrically arranged inside the delivery bucket 501. The positioning plates 502 support the additive inside the delivery bucket 501, so as to achieve subsequent precise delivery. A second weight sensor 503 is arranged on the top of the positioning plate 502. The second weight sensor 503 is used to detect the weight value above the positioning plate 502.

[0039] The side wall of the delivery bucket 501 is fixedly connected to the inner wall of the support frame 101. With the help of the support frame 101 to support the delivery bucket 501 for stability, the two positioning plates 502 are provided with side grooves 504 on the facing end faces, and an electromagnetic switch valve 505 is provided inside the side groove 504. The electromagnetic switch valve 505 can realize the continuous and accurate delivery of additives above the positioning plate 502.

[0040] The feeding shell 507 is connected to the lower part of the delivery bucket 501 through the recovery hole 508, and the additives in the delivery bucket 501 enter the feeding shell 507 along the recovery hole 508. A bottom plate 506 is provided at the bottom of the feeding shell 507, and the setting of the bottom plate 506 further improves the supporting stability of the feeding shell 507. A driving motor 511 is provided on one side of the feeding shell 507, and the output end of the driving motor 511 passes through the feeding shell 507 and is provided with a transmission shaft 509. The outer surface of the transmission shaft 509 is provided with a spiral auger 510, and the outer surface of the spiral auger 510 matches the inner wall of the feeding shell 507. The controller 104 controls the driving motor 511 to start and drive the transmission shaft 509 to rotate, and the transmission shaft 509 drives the spiral auger 510 to rotate inside the feeding shell 507 and drives the internal additives to be spirally transmitted backward, so that the additives inside the feeding shell 507 can continuously and effectively enter the rotary calcining furnace, thereby helping the continuous and stable steelmaking inside the rotary calcining furnace.

[0041] When the additives are actually quantitatively dosed, the cutting of the bottom of the ton bag 209 has low delivery efficiency and poor delivery continuity, which cannot meet the demand for fast and efficient delivery. At the same time, as the additives inside the ton bag 209 are continuously delivered, the weight and stacking position of the additives inside the ton bag 209 change accordingly, and the prior art cannot adjust the flapping position and flapping strength on both sides of the ton bag 209 accordingly, thereby reducing the delivery stability of subsequent additives. When the bottom of the ton bag 209 is cut to form an opening and the additives are continuously delivered, the additives inside the ton bag 209 are easily accumulated at the lower opening. At this time, the additives can only be delivered by rotating the ton bag 209. The beating of the plate 401 and the beating block 404 on the two side walls of the ton bag 209 still cannot make the additives blocked at the opening fall downward, thereby reducing the efficiency and quality of additive delivery; and as the additives inside the ton bag 209 are continuously delivered, some additives are easily attached to the outer surface of the ton bag 209 and the inner wall of the delivery bucket 501, and when the additives inside the ton bag 209 are delivered, the additives are easily partially attached and agglomerated on the inner wall of the ton bag 209. If it cannot be accurately cleaned by wind, it will not only reduce the amount of additives delivered, but also cause pollution to subsequent additives.

[0042] In order to solve the above problems, when the additive quantitative feeding device is actually used, a certain amount of additive is placed inside the ton bag 209, the controller 104 controls the electric hoist 207 to start and move along the slide rail 206 to the top of the ton bag 209, the electric hoist 207 drives the lower hook 208 to move synchronously to the top of the ton bag 209 and move downward to a suitable height, and at the same time, multiple lifting rings 210 are connected to the hook groove 203, the controller 104 controls the electric hoist 207 to start again and drive the ton bag 209 to move upward to a suitable feeding height, and the multiple first weight sensors 204 detect The weight values ​​all reach the preset weight values, and then the controller 104 controls the electric hoist 207 to drive the ton bag 209 to move to above the wedge-shaped cutter 307 and then continue to move downward to a certain height, and the wedge-shaped cutter 307 pierces the bottom of the ton bag 209. At the same time, the controller 104 controls multiple first pneumatic push rods 304 to start and drive the follower blocks 305 to move away from each other along the limit blocks 303, and the follower blocks 305 drive the wedge-shaped cutter 307 to move and cut the bottom of the ton bag 209 to form an opening, so that the additives inside the ton bag 209 are continuously and stably fed along the lower opening.

[0043] At the same time, the controller 104 controls the second pneumatic push rod 416 to start and the output end drives the rotating plate 401 to swing back and forth around the rotating shaft 414 through the swing sleeve 415, and the electric telescopic rod 407 drives the beating block 404 to move upward to the initial distance, and the rotating plate 401 drives the beating block 404 to swing synchronously and beat the outer surface of the ton bag 209. At the same time, the beating block 404 drives the elastic expansion ball 409 and the elastic collision block 411 on the top to swing back and forth and knock and collide with both sides of the ton bag 209, further improving the continuity and stability of the release of additives inside the ton bag 209 along the lower opening.

[0044] And the controller 104 controls the fan 413 to start and the output end to pass gas into the connecting hole 412. The gas inside the connecting hole 412 enters the bottom groove 406 along the top groove 402, and the gas inside the bottom groove 406 is discharged to both sides of the ton bag 209 along the docking hole 405 and the exhaust hole 403, which not only realizes the wind cleaning of the outer surface of the ton bag 209, but also can realize the wind pulse extrusion of the side wall of the ton bag 209 with the help of the size and direction change of the gas discharged from the exhaust hole 403, thereby ensuring that the additives inside the ton bag 209 are fed along the lower opening, avoiding the blockage of the lower opening of the ton bag 209 and affecting the feeding efficiency.

[0045] Specifically, when the rotating plate 401 drives the exhaust hole 403 to rotate toward the side wall end of the ton bag 209, the distance between the exhaust hole 403 and the side wall of the ton bag 209 decreases, and the gas extrusion force exerted by the gas discharged from the exhaust hole 403 on the side wall of the ton bag 209 increases, thereby improving the extrusion and delivery efficiency of the additives inside the ton bag 209. At the same time, the rotation of the rotating plate 401 also drives the change in the opposite position of the exhaust hole 403 and the side wall of the ton bag 209. The gas discharged from the exhaust hole 403 continuously slides downward along the side wall of the ton bag 209, thereby improving the wind pulse driving feeding effect on the lower opening of the ton bag 209, thereby avoiding the lower opening of the ton bag 209 being blocked by additives and affecting the delivery efficiency.

[0046] Furthermore, due to the blocking effect of the side wall of the ton bag 209 on the exhaust hole 403, as the rotating plate 401 drives the exhaust hole 403 to rotate toward the side wall end of the ton bag 209, the amount of gas discharged from the exhaust hole 403 decreases accordingly, and the excess gas inside the bottom groove 406 enters the elastic expansion ball 409 upward along the arc hole 408 and the center hole 410, and the volume of the elastic expansion ball 409 increases and drives the elastic collision block 411 to move toward the side wall end of the ton bag 209. When the rotating plate 401 drives the beating block 404 to collide with the side wall of the ton bag 209, the beating block 404 simultaneously drives the elastic expansion ball 409 and the elastic collision block 411 to rotate and collide with the side wall of the ton bag 209, thereby further improving the collision and delivery effect of the additive inside the ton bag 209 and realizing the vibration beating delivery of the ton bag 209.

[0047] Afterwards, the controller 104 controls the output end of the second pneumatic push rod 416 to shorten and drive the rotating plate 401 to rotate away from the end of the ton bag 209, and the rotating plate 401 simultaneously drives the slapping block 404 and the elastic expansion ball 409 to rotate in the opposite direction, and the rotating plate 401, the slapping block 404 and the elastic collision block 411 are separated from the collision and extrusion state of the side wall of the ton bag 209. At the same time, when the rotating plate 401 rotates in the opposite direction, it simultaneously drives multiple exhaust holes 403 to rotate in the opposite direction and separate from the opening state directly below the ton bag 209, and blows and squeezes the remaining positions of the side wall of the ton bag 209 by wind, thereby improving the pulse cleaning and extrusion effect of the exhaust hole 403, ensuring that the additives inside the ton bag 209 can achieve high-frequency contraction and expansion, thereby improving the delivery efficiency of the additives inside the ton bag 209.

[0048] As the additives inside the ton bag 209 are continuously released along the lower opening, the amount of additives inside the ton bag 209 is continuously reduced and the release efficiency along the lower opening is continuously reduced, the weight values ​​detected by the multiple first weight sensors 204 are continuously reduced, and the weight value detected by the second weight sensor 503 inside the release bucket 501 is continuously increased, the controller 104 controls the electric telescopic rod 407 to start and the output end is shortened, the electric telescopic rod 407 drives the beating block 404 to move downward along the top groove 402, the beating block 404 drives the docking hole 405 to move downward and the overlapping area of ​​the docking hole 405 and the multiple exhaust holes 403 is reduced, the discharge amount of the gas inside the bottom groove 406 along the docking hole 405 and the exhaust hole 403 is reduced, thereby ensuring that the gas discharged from the exhaust hole 403 can continuously and stably apply wind pulse extrusion force to the side wall of the ton bag 209, avoiding excessive amount of gas discharged from the exhaust hole 403 causing excessive swing amplitude of the ton bag 209 and the internal additive and affecting the release accuracy of the internal additive.

[0049] At the same time, when the gas inside the bottom groove 406 is discharged along the docking hole 405 and the multiple exhaust holes 403, the exhaust efficiency decreases, and the fan 413 passes the same amount of gas into the top groove 402 and the bottom groove 406 through the connecting hole 412, the excess gas inside the bottom groove 406 enters the elastic expansion ball 409 upward along the arc hole 408 and the center hole 410, and the volume of the elastic expansion ball 409 increases and drives the elastic collision block 411 to move toward the side wall end of the ton bag 209. Therefore, the rotating plate 401 drives the elastic expansion ball 409 and the elastic collision block 411 through the slapping block 404. When the elastic collision block 411 rotates, the extrusion collision force applied by the elastic collision block 411 to the side wall of the ton bag 209 is further increased, thereby increasing the degree of vibration delivery of the additive inside the ton bag 209, ensuring the continuity and stability of the delivery of the additive inside the ton bag 209 along the lower opening, and at the same time, the elastic expansion ball 409 and the elastic collision block 411 can be increased as the additive inside the ton bag 209 decreases, further improving the tight knocking and collision delivery effect of the elastic expansion ball 409 and the elastic collision block 411 on the additive inside the ton bag 209.

[0050] When the weight value detected by a certain first weight sensor 204 is greater than the weight value detected by the first weight sensor 204 at other positions, it means that the rate of adding additives inside the ton bag 209 at this position is slow, and stable addition of additives inside the ton bag 209 cannot be achieved. The controller 104 controls the electric telescopic rod 407 at the corresponding position to start and the output end extends, and the electric telescopic rod 407 drives the beating block 404 and the docking hole 405 to move upward along the top groove 402, and the overlapping area of ​​the docking hole 405 and the multiple exhaust holes 403 increases. The amount of gas discharged from the bottom groove 406 along the docking hole 405 and the exhaust hole 403 to the outside increases, and the gas extrusion pressure exerted by the gas on the side wall of the ton bag 209 increases, further ensuring that the discharge efficiency of the ton bag 209 along the lower opening at this position is increased.

[0051] When the rotating plate 401 drives the beating block 404 to rotate to the side wall of the ton bag 209, the controller 104 controls the electric telescopic rod 407 to drive the beating block 404 to move downward along the top groove 402. The distance increases, and the beating block 404 drives the docking hole 405 to move downward, and the docking hole 405 and the multiple exhaust holes 403 no longer overlap. The area is further reduced, and the fan 413 is started and the gas introduced into the top groove 402 through the connecting hole 412 further moves upward along the bottom groove 406, the arc hole 408 and the center hole 410 into the elastic expansion ball 409. The expansion volume of the elastic expansion ball 409 is greater than that of the other positions, and the elastic expansion ball 409 is The expansion ball 409 further drives the elastic collision block 411 to move toward the side wall end of the ton bag 209, and the knocking, collision and extrusion force applied by the elastic collision block 411 to the side wall of the ton bag 209 increases accordingly, thereby ensuring that the release rate of the internal additives of the ton bag 209 along the lower opening at the stacking position increases, thereby achieving continuous and stable release of the internal additives of the ton bag 209, and through multiple adjustments to the position of the slapping block 404, the weight values ​​detected by the multiple first weight sensors 204 are equal and equal to the preset weight value of the set position, and the above process is repeated to continuously and stably release the internal additives of the ton bag 209.

[0052] When the additives inside the ton bag 209 are all put in along the lower opening, the weight value detected by the first weight sensor 204 continues to decrease to the set minimum weight value, and the weight value detected by the second weight sensor 503 continues to increase to the set maximum weight value. However, if some additives are still adhered to the inner wall of the ton bag 209, the weight value detected by the first weight sensor 204 is greater than the set minimum weight value, and the weight value detected by the second weight sensor 503 is less than the set maximum weight value. The controller 104 controls the electric hoist 207 to start and drive the ton bag 209 to move upward to the maximum value, and the second pneumatic push rod 416 drives the rotating plate 401 to rotate to the maximum value close to the end of the ton bag 209 and the multiple elastic expansion balls 409 on both sides contact each other. Then the controller 104 controls the electric hoist 207 to move downward and drive the ton bag 20 9 moves downward, the rotating plate 401 is inserted into the ton bag 209 along the opening below the ton bag 209, and at the same time, the controller 104 controls the multiple electric telescopic rods 407 to start and drive the beating block 404 to move upward to the maximum distance, and the overlapping area of ​​the docking hole 405 and the multiple exhaust holes 403 reaches the maximum value. At this time, the fan 413 starts and passes the gas into the bottom groove 406 along the connecting hole 412 and the top groove 402, and the gas inside the bottom groove 406 is discharged along the docking hole 405 and the exhaust holes 403 and the inner wall of the ton bag 209 is thoroughly and effectively cleaned by wind. At the same time, the second pneumatic push rod 416 drives the rotating plate 401 to swing back and forth continuously, and the rotating plate 401 drives the multiple exhaust holes 403 to swing continuously and change the wind cleaning position of the inner wall of the ton bag 209, to ensure that the additives adhered to the inner wall of the ton bag 209 can be continuously and stably put downward and discharged.

[0053] When the weight value detected by the first weight sensor 204 is equal to the set minimum weight value, and the weight value detected by the second weight sensor 503 is less than the set maximum weight value, it means that part of the additive is adhered to the top of the horizontal frame 301 and the inner wall of the delivery bucket 501. The controller 104 controls the electric hoist 207 to start and drive the ton bag 209 to move and detach from the top of the delivery bucket 501. At the same time, the second pneumatic push rod 416 synchronously drives the rotating plate 401 to continue to swing back and forth. The rotating plate 401 drives the multiple exhaust holes 403 to swing back and forth and performs wind cleaning and delivery on the outer surface of the horizontal frame 301 and the inner wall of the memory delivery bucket 501 to avoid the adhesion of the additive and affect the delivery accuracy of the additive.

[0054] After the additive inside the ton bag 209 is put into place, the weight value detected by the second weight sensor 503 reaches the preset maximum weight value, which indicates that the additive inside the delivery bucket 501 has been put into place. At the same time, when it is necessary to accurately deliver the additive inside the delivery bucket 501 into the rotary calcining furnace, the feeding shell 507 is connected to the opening of the rotary calcining furnace, and at the same time, the controller 104 controls the electromagnetic switch valve 505 to open, and the additive inside the delivery bucket 501 enters the feeding shell 507 along the recovery hole 508. The controller 104 controls the drive motor 511 to start and drive the rotating shaft 414 to rotate. The rotating shaft 414 drives the spiral auger 510 to rotate and accurately delivers the additive inside the feeding shell 507 into the rotary calcining furnace. When the weight reduction value detected by the second weight sensor 503 meets the requirement, the controller 104 controls the electromagnetic switch valve 505 to close, and the additive inside the delivery bucket 501 no longer enters the feeding shell 507 along the recovery hole 508. The delivery is completed after all the additives inside the feeding shell 507 are delivered to the rotary calcining furnace.

[0055] The above process is then repeated to achieve accurate delivery of additives to subsequent ton bags 209 and delivery buckets 501, thereby improving subsequent steelmaking effects and quality.

[0056] The quantitative additive delivery device is simple to operate, safe and stable, can meet the needs of large-scale delivery, and has accurate delivery amount, high delivery efficiency, strong adaptability and high stability, so that the operator can deliver the required additives into the rotating calcining furnace accurately and efficiently; at the same time, when the additives in the ton bag 209 are continuously delivered along the lower opening, the rotating plate 401 and the beating block 404 continuously beat the side wall of the ton bag 209 and improve the delivery efficiency and delivery stability; and as the additive delivery is continuously carried out, the gas discharged from the exhaust hole 403 continuously applies an extrusion force to the side wall of the ton bag 209 and realizes high-frequency contraction and expansion of the side wall of the ton bag 209, thereby improving the delivery efficiency of the additives in the ton bag 209; and when the delivery is completed, the rotating plate 401 enters the ton bag 209 and discharges the gas with the help of the exhaust hole 403 to realize wind cleaning of the additives adhered to the inner wall of the ton bag 209, and the rotating plate 401 continues to rotate to carry out wind delivery cleaning of the inner wall of the delivery bucket 501, thereby improving the delivery effect and thoroughness of the additives, and avoiding the adhesion of the additives and affecting the subsequent delivery effect.

[0057] Embodiment 2 The application of the additive quantitative dosing device in the steel smelting with less slag includes the following steps: S1. The square block 201 lifts the ton bag 209 and moves it above the delivery bucket 501. The multiple first weight sensors 204 detect that the weight value reaches the preset weight value, and the wedge-shaped cutter 307 cuts the bottom of the ton bag 209.

[0058] S2. The rotating plate 401 rotates and drives the beating block 404 to rotate. The beating block 404 rotates and drives the elastic expansion ball 409 to rotate and beat the side wall of the ton bag 209. At the same time, the exhaust hole 403 continuously discharges gas to exert wind force on the side wall of the ton bag 209, so that the side wall of the ton bag 209 continuously shrinks and expands at a high frequency and releases internal additives.

[0059] S3. When the weight value detected by the first weight sensor 204 on a certain side increases, the beating block 404 moves upward along the top groove 402, the overlapping area between the docking hole 405 and the exhaust hole 403 increases, the amount of gas discharged from the exhaust hole 403 increases and the squeezing force applied to the side wall of the ton bag 209 increases. When the rotating plate 401 and the beating block 404 contact the side wall of the ton bag 209, the beating block 404 moves downward along the top groove 402 and increases, the overlapping area between the docking hole 405 and the exhaust hole 403 decreases, the expansion size of the elastic expansion ball 409 increases and the collision force applied to the side wall of the ton bag 209 increases.

[0060] S4. When the delivery is completed, the weight value detected by the first weight sensor 204 is greater than the set minimum weight preset value, the rotating plate 401 and the beating block 404 are inserted into the ton bag 209 along the opening below the ton bag 209, the beating block 404 moves upward along the top groove 402 to the maximum distance, the overlapping area of ​​the docking hole 405 and the exhaust hole 403 reaches the maximum value, the exhaust hole 403 discharges the gas and performs wind cleaning on the ton bag 209 and the inner wall of the delivery bucket 501.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative additive dosing device, comprising a frame assembly (1), characterized in that: A hanging assembly (2) is provided above the frame assembly (1), a cutting assembly (3) is provided below the hanging assembly (2), beating assemblies (4) are provided on both sides of the cutting assembly (3), and a dropping assembly (5) is provided below the cutting assembly (3); The frame assembly (1) comprises a support frame (101), a reinforcement frame (103) is provided between two facing support frames (101), and a mounting frame (107) is provided between another two support frames (101); The lifting assembly (2) comprises a square block (201), a plurality of connection blocks (202) are evenly arranged on the peripheral side of the square block (201), a hook groove (203) is opened on the top of the connection block (202), a first weight sensor (204) is arranged at the inner bottom of the hook groove (203), and a ton bag (209) is arranged below the square block (201); The cutting assembly (3) comprises a plurality of wedge-shaped cutters (307); The flapping assembly (4) comprises two rotating plates (401), the top of the rotating plates (401) is evenly provided with a plurality of top grooves (402), the facing end surfaces of the two rotating plates (401) are evenly provided with a plurality of exhaust holes (403), the inside of the top grooves (402) is sealingly and slidably connected with a flapping block (404), the bottom of the flapping block (404) is provided with a bottom groove (406), the facing end surfaces of the plurality of flapping blocks (404) are all provided with docking holes (405), and the top of the flapping block (404) is provided with an elastic expansion ball (409); The delivery component (5) comprises a delivery bucket (501).

2. The additive quantitative dosing device according to claim 1, characterized in that: A top frame (102) is provided on the top of the support frame (101), a plurality of inclined frames (106) are provided between two adjacent support frames (101) and the top frame (102), a plurality of fixing pads (105) are evenly provided on the bottom of the support frame (101), and a controller (104) is provided on the outside of the reinforcement frame (103), and the controller (104) electrically controls each electrical component.

3. The additive quantitative dosing device according to claim 2, characterized in that: A slide rail (206) is provided at the bottom of the top frame (102), an electric hoist (207) is slidably connected to the outer surface of the slide rail (206), a lower hook (208) is provided at the lower output end of the electric hoist (207), a hanging rope (205) is provided at the top axis of the square block (201), the hanging rope (205) and the lower hook (208) match, a plurality of lifting rings (210) are evenly provided on the top of the ton bag (209), the lifting rings (210) match the hook grooves (203), and the first weight sensor (204) is used to detect the weight value of the agent inside the ton bag (209).

4. The additive quantitative dosing device according to claim 1, characterized in that: A plurality of cross frames (301) are provided between the two reinforcing frames (103), a limit block (303) is provided at the top of the cross frame (301), a vertical plate (302) is provided on one side of the limit block (303), the bottom of the vertical plate (302) is fixedly connected to the top of the cross frame (301), a first pneumatic push rod (304) is provided on the side facing each other of the plurality of vertical plates (302), a follower block (305) is provided at the output end on the other side of the first pneumatic push rod (304), the top of the follower block (305) is fixedly connected to the bottom of the wedge cutter (307), a matching groove (306) is provided at the bottom of the follower block (305), and the inner wall of the matching groove (306) is sealingly and slidably connected to the outer surface of the limit block (303).

5. The additive quantitative dosing device according to claim 1, characterized in that: Two rotating shafts (414) are symmetrically arranged inside the reinforcing frame (103); the outer surface of the rotating shaft (414) is movably connected to a swing sleeve (415); the outer surface of the swing sleeve (415) is fixedly connected to the bottom of the rotating plate (401); the tops of the two mounting frames (107) are movably connected to a second pneumatic push rod (416) via a bearing seat (417); the top output end of the second pneumatic push rod (416) is hinged to the side wall of the rotating plate (401) via a movable seat (418).

6. The additive quantitative dosing device according to claim 1, characterized in that: One end of the exhaust hole (403) is connected to the top groove (402), the docking hole (405) is connected to the bottom groove (406), and the docking hole (405) matches the plurality of exhaust holes (403), the top of the top groove (402) is connected to the bottom of the bottom groove (406), an electric telescopic rod (407) is provided at the inner bottom of the top groove (402), and the top output end of the electric telescopic rod (407) is fixedly connected to the inner top of the bottom groove (406), a fan (413) is provided on the two rotating plates (401) facing away from each other, and a connecting hole (412) is provided inside the rotating plate (401), one side of the connecting hole (412) is connected to the plurality of top grooves (402), and the other end of the connecting hole (412) is connected to the output end of the fan (413).

7. The additive quantitative dosing device according to claim 1, characterized in that: The top of the beating block (404) is symmetrically provided with two arc-shaped holes (408), the bottom of the arc-shaped holes (408) is connected to the inside of the bottom groove (406), a center hole (410) is provided at the bottom center axis of the elastic expansion ball (409), the top of the arc-shaped hole (408) is connected to the bottom of the center hole (410), the elastic expansion ball (409) has elastic expansion properties, and an elastic collision block (411) is provided between two adjacent elastic expansion balls (409), and the elastic collision block (411) has elasticity.

8. The additive quantitative dosing device according to claim 1, characterized in that: Two positioning plates (502) are symmetrically arranged inside the delivery bucket (501), a second weight sensor (503) is arranged on the top of the positioning plate (502), a side wall of the delivery bucket (501) is fixedly connected to the inner wall of the support frame (101), the second weight sensor (503) is used to detect the weight value above the positioning plate (502), and side grooves (504) are arranged on the facing end surfaces of the two positioning plates (502), and an electromagnetic switch valve (505) is arranged inside the side groove (504).

9. The additive quantitative dosing device according to claim 1, characterized in that: A feeding shell (507) is connected to the bottom of the delivery hopper (501) through a recovery hole (508); a bottom plate (506) is provided at the bottom of the feeding shell (507); a driving motor (511) is provided on one side of the feeding shell (507); an output end of the driving motor (511) passes through the feeding shell (507) and is provided with a transmission shaft (509); a spiral auger (510) is provided on the outer surface of the transmission shaft (509); and the outer surface of the spiral auger (510) matches the inner wall of the feeding shell (507).

10. The use of the additive quantitative dosing device as claimed in claim 1 in steel smelting with less slag, characterized in that: The following steps are involved: S1, the square block (201) hoists the ton bag (209) and moves it above the delivery bucket (501), the plurality of first weight sensors (204) detect that the weight value reaches the preset weight value, and the wedge-shaped cutter (307) cuts the bottom of the ton bag (209); S2, the rotating plate (401) rotates and drives the beating block (404) to rotate, and the beating block (404) rotates and drives the elastic expansion ball (409) to rotate and beat the side wall of the ton bag (209), and at the same time, the exhaust hole (403) continuously discharges gas to exert wind force on the side wall of the ton bag (209), so that the side wall of the ton bag (209) continuously contracts and expands at a high frequency and releases internal additives; S3, when the weight value detected by the first weight sensor (204) on a certain side increases, the slapping block (404) moves upward along the top groove (402), the overlapping area between the docking hole (405) and the exhaust hole (403) increases, the amount of gas discharged from the exhaust hole (403) increases, and the extrusion force applied to the side wall of the ton bag (209) increases; when the rotating plate (401) and the slapping block (404) contact the side wall of the ton bag (209), the slapping block (404) moves downward along the top groove (402) and increases, the overlapping area between the docking hole (405) and the exhaust hole (403) decreases, the expansion size of the elastic expansion ball (409) increases, and the collision force applied to the side wall of the ton bag (209) increases; S4. When the delivery is completed, the weight value detected by the first weight sensor (204) is greater than the preset minimum weight value, the rotating plate (401) and the beating block (404) are inserted into the ton bag (209) along the lower opening of the ton bag (209), the beating block (404) moves upward along the top groove (402) to a maximum distance, the overlapping area of ​​the docking hole (405) and the exhaust hole (403) reaches a maximum value, and the exhaust hole (403) exhausts gas and performs wind cleaning on the ton bag (209) and the inner wall of the delivery bucket (501).

Images