A pre-pressurized feeding device of a ball press

Abstract

The utility model discloses a kind of pre-pressurization feeding devices of ball press, belong to ball press technical field, including ball press box, pre-pressing mechanism is arranged on the ball press box, ball press mechanism is arranged on the ball press box, the top of the ball press box is fixed with feeding cylinder sleeve interface has.The utility model in the process of ball pressing to fused magnesite, put fused magnesite in the inner cavity of storage hopper, using first motor drives stirring rod, spiral feed rod and broken knife rotation, through broken knife to the fused magnesite in the inner cavity of storage hopper is broken, simultaneously using the rotation of spiral feed rod the fused magnesite in the inner cavity of storage hopper is conveyed from the inner cavity of feeding cylinder downward, so that fused magnesite is input between two pre-pressing rollers from feeding side pipe, realizes the function of fused magnesite feeding, additionally preliminary pressurization forming to fused magnesite in the process of pushing, prepare for subsequent ball pressing operation.

Description

Technical Field

[0001] This utility model relates to the field of briquetting machine technology, and more specifically, to a pre-pressurization feeding device for a briquetting machine. Background Technology

[0002] Fused magnesia is an alkaline refractory raw material produced by melting natural magnesite, light-burned magnesia, or sintered magnesia in an electric arc furnace. The briquetting process is a crucial step in fused magnesia production, primarily used to press the raw materials into blanks for subsequent high-temperature melting. The core steps of this process can be summarized into three stages: raw material pretreatment, pressing, and high-temperature melting and crystallization. Pressing involves using a briquetting machine to press finely ground light-burned magnesia powder or magnesite powder into dense blanks to improve density and crystallization efficiency during melting.

[0003] A search revealed that utility model patent CN219816526U discloses a briquetting machine for fused magnesia processing, comprising a chassis with a feed pipe connected to the top. A first motor is movably connected to the right side of the feed pipe via a first bearing. A crushing rod is fixedly connected to the output end of the first motor, and crushing blades are fixedly connected to the top and bottom of the crushing rod. A second motor is movably connected to the right side of the chassis via a second bearing, and a rotating rod is fixedly connected to the output end of the second motor. This patent, through the cooperation of the chassis, feed pipe, first motor, crushing rod, crushing blades, second motor, rotating rod, eccentric wheel, bracket, screen, guide cover, third motor, first movable rod, second movable rod, gear, briquetting roller, opening, receiving box, spring, and damping block, can crush agglomerated magnesia powder and remove impurities, ensuring the quality of the final product. However, the above patent still has the following shortcomings: the fused magnesia after crushing and screening is relatively dispersed, and it is not easy to press out compact spheres by relying solely on the briquetting roller, which affects the quality of the briquetting. Therefore, we have proposed a pre-pressurization feeding device for the briquetting machine. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a pre-pressurization feeding device for a briquetting machine.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A pre-pressurizing feeding device for a briquetting machine includes a briquetting box, a pre-pressing mechanism, and a briquetting mechanism. A feeding cylinder is fixedly sleeved on the top of the briquetting box, and a storage hopper is fixedly connected to the top of the feeding cylinder. The bottom end of the feeding cylinder extends into the inner cavity of the briquetting box and is fixedly connected to a feeding square tube. A support frame is fixedly connected to the top surface of the storage hopper, and a first motor is fixedly installed on the top surface of the support frame. The output shaft of the first motor extends into the inner cavity of the storage hopper and is fixedly connected to a stirring rod via a coupling. The bottom end of the stirring rod extends into the inner cavity of the feeding cylinder and is fixedly connected to a spiral conveying rod. Multiple crushing blades are fixedly connected to the side of the stirring rod and located in the inner cavity of the storage hopper.

[0007] As a preferred embodiment of the present invention, the pre-pressing mechanism includes two pre-pressing rollers rotatably connected to the inner cavity of the ball pressing box and a second motor fixedly installed on the front side of the ball pressing box. The output shaft of the second motor is connected to one end of a pre-pressing roller shaft through a coupling. The other ends of the two pre-pressing roller shafts extend to the outside of the ball pressing box and are fixedly fitted with first gears. The two first gears mesh with each other.

[0008] As a preferred embodiment of the present invention, the ball pressing mechanism includes two ball pressing rollers rotatably connected to the inner cavity of the ball pressing box and a third motor fixedly installed on the front of the ball pressing box. The output shaft of the third motor is connected to one end of a ball pressing roller shaft through a coupling. The other ends of the two ball pressing roller shafts extend to the outside of the ball pressing box and are fixedly fitted with second gears. The two second gears mesh with each other.

[0009] As a preferred embodiment of this utility model, a control panel is fixedly installed on the front of the ball pressing box, and the control panel is electrically connected to the second motor, the third motor and the first motor respectively.

[0010] As a preferred embodiment of this utility model, the bottom of the ball pressing box is provided with a discharge port, and multiple support columns are fixedly connected to the bottom surface of the ball pressing box. Limiting seats are respectively provided on both sides of the inner cavity of the ball pressing box, and the top and bottom surfaces of the limiting seats are respectively in contact with the top and bottom surfaces of the pre-pressing roller.

[0011] In a preferred embodiment of this utility model, the side of the spiral conveyor rod is in contact with the inner wall of the feeding cylinder.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, when fused magnesia is briquetting, the fused magnesia is placed in the inner cavity of the storage hopper. The first motor drives the stirring rod, the spiral conveying rod and the crushing knife to rotate. The crushing knife crushes the fused magnesia in the inner cavity of the storage hopper. At the same time, the rotation of the spiral conveying rod transports the fused magnesia in the inner cavity of the storage hopper downward from the inner cavity of the feeding cylinder. This allows the fused magnesia to be fed from the feeding square tube between the two pre-pressing rollers, thus realizing the function of feeding the fused magnesia. During the pushing process, the fused magnesia is initially pressurized and shaped, preparing for the subsequent briquetting operation.

[0014] (2) In this utility model, by using the pre-pressing roller, the second motor and the first gear in combination, when the fused magnesia falls onto the two pre-pressing rollers, the rotation of the two pre-pressing rollers is used to press the fused magnesia again, so that the fused magnesia solidifies again, preparing for the ball pressing operation of the two ball pressing rollers and ensuring the compactness of the ball pressing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the front of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the back of this utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the ball-pressing box of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the storage hopper of this utility model.

[0019] The following are the labels in the diagram: 1. Ball-pressing box; 2. Pre-compression mechanism; 3. Ball-pressing mechanism; 4. Feeding cylinder; 5. Storage hopper; 6. Feeding square tube; 7. Support frame; 8. First motor; 9. Stirring rod; 10. Spiral conveyor rod; 11. Crusher; 12. Pre-compression roller; 13. Second motor; 14. First gear; 15. Ball-pressing roller; 16. Third motor; 17. Second gear; 18. Discharge port; 19. Support column; 20. Control panel; 21. Limit seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example:

[0024] Please see Figure 1-4 A pre-pressurizing feeding device for a briquetting machine includes a briquetting box 1, a pre-pressing mechanism 2 and a briquetting mechanism 3. A feeding cylinder 4 is fixedly sleeved on the top of the briquetting box 1, and a storage hopper 5 is fixedly connected to the top of the feeding cylinder 4. The bottom end of the feeding cylinder 4 extends into the inner cavity of the briquetting box 1 and is fixedly connected to a feeding square tube 6. A support frame 7 is fixedly connected to the top surface of the storage hopper 5, and a first motor 8 is fixedly installed on the top surface of the support frame 7. The output shaft of the first motor 8 extends into the inner cavity of the storage hopper 5 and is fixedly connected to a stirring rod 9 via a coupling. The bottom end of the stirring rod 9 extends into the inner cavity of the feeding cylinder 4 and is fixedly connected to a spiral conveying rod 10. Multiple crushing blades 11 are fixedly connected to the side of the stirring rod 9 and located in the inner cavity of the storage hopper 5.

[0025] In this embodiment, the length of the feeding square tube 6 is matched with the length of the inner cavity of the ball pressing box 1, so as to ensure that the fused magnesia extruded by the feeding square tube 6 is evenly distributed between the two pre-pressing rollers 12.

[0026] For details, please refer to Figures 1 to 3 The pre-pressing mechanism 2 includes two pre-pressing rollers 12 rotatably connected to the inner cavity of the ball pressing box 1 and a second motor 13 fixedly installed on the front of the ball pressing box 1. The output shaft of the second motor 13 is connected to one end of the rotating shaft of a pre-pressing roller 12 through a coupling. The other ends of the rotating shafts of the two pre-pressing rollers 12 extend to the outside of the ball pressing box 1 and are fixedly sleeved with first gears 14. The two first gears 14 mesh with each other.

[0027] In this embodiment, there is a certain gap between the two pre-compression rollers 12 to ensure that the fused magnesia is pre-compressed, so that the dispersed fused magnesia can be pre-compressed.

[0028] For details, please refer to Figures 1 to 3 The ball pressing mechanism 3 includes two ball pressing rollers 15 rotatably connected to the inner cavity of the ball pressing box 1 and a third motor 16 fixedly installed on the front of the ball pressing box 1. The output shaft of the third motor 16 is connected to one end of the rotating shaft of a ball pressing roller 15 through a coupling. The other ends of the rotating shafts of the two ball pressing rollers 15 extend to the outside of the ball pressing box 1 and are fixedly sleeved with second gears 17. The two second gears 17 mesh with each other.

[0029] In this embodiment, the inner surfaces of the two ball-pressing rollers 15 are in contact with each other, and both storage hoppers 5 are provided with arc-shaped grooves to press the fused magnesia into balls. In addition, the end face of the ball-pressing roller 15 is in contact with the inner wall of the ball-pressing box 1 to ensure that the two ball-pressing rollers 15 can completely press the fused magnesia into balls.

[0030] For details, please refer to Figure 1 and Figure 4 A control panel 20 is fixedly installed on the front of the ball pressing box 1. The control panel 20 is electrically connected to the second motor 13, the third motor 16 and the first motor 8 respectively.

[0031] In this embodiment, the control panel 20 is used to control the second motor 13, the third motor 16 and the first motor 8, and an external power supply is used to power the control panel 20, the second motor 13, the third motor 16 and the first motor 8.

[0032] For details, please refer to Figure 2 and Figure 3 The bottom of the ball pressing box 1 is provided with a discharge port 18. Multiple support columns 19 are fixedly connected to the bottom surface of the ball pressing box 1. Limit seats 21 are provided on both sides of the inner cavity of the ball pressing box 1. The top and bottom surfaces of the limit seats 21 are respectively attached to the top and bottom surfaces of the pre-pressing roller 12.

[0033] In this embodiment, the support column 19 supports the ball pressing box 1, the fused magnesia after ball pressing is discharged through the discharge port 18, the fused magnesia attached to the pre-pressing roller 12 is cleaned off by the limiting seat 21, and the fused magnesia after being pressed by the pre-pressing roller 12 is limited by the limiting seat 21, so as to ensure that the two ball pressing rollers 15 can perform ball pressing operation on the fused magnesia.

[0034] For details, please refer to Figure 4 The side of the spiral conveyor rod 10 is in contact with the inner wall of the feed cylinder 4.

[0035] In this embodiment, the spiral conveyor rod 10 is ensured to drive the fused magnesia in the inner cavity of the storage hopper 5 to be squeezed and pushed in the feeding cylinder 4.

[0036] Working principle: In use, firstly, the fused magnesia to be pressed into the inner cavity of the storage hopper 5 is placed. At the same time, the first motor 8 is started to drive the stirring rod 9, the screw conveyor 10, and the crusher 11 to rotate. The crusher 11 crushes the fused magnesia in the inner cavity of the storage hopper 5. Simultaneously, the rotation of the screw conveyor 10 conveys the fused magnesia from the inner cavity of the storage hopper 5 downward from the inner cavity of the feed cylinder 4, and pressurizes and pushes the fused magnesia, so that the fused magnesia is fed from the feed square pipe 6 into the space between the two pre-compression rollers 12. Then, the second motor 13 is started to drive one pre-compression roller 12 and one first gear 14 to rotate counterclockwise. The two first gears 14 mesh and transmit power. The first gear 14 and the second pre-pressing roller 12 are driven to rotate clockwise. The two rotating pre-pressing rollers 12 pre-press the fused magnesia, causing the dispersed fused magnesia to be pre-extruded and formed. At the same time, the pre-formed fused magnesia falls onto the two ball-pressing rollers 15. Then, a third motor 16 is started to drive one ball-pressing roller 15 and one second gear 17 to rotate counterclockwise. Through the meshing transmission between the two second gears 17, the other ball-pressing roller 15 and the other second gear 17 are driven to rotate clockwise. Thus, the two rotating ball-pressing rollers 15 are used to press the fused magnesia into balls. Finally, the fused magnesia after being pressed into balls falls from the discharge port 18.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A pre-pressurization feeding device for a briquetting machine, comprising a briquetting box (1), characterized in that: The ball pressing box (1) is provided with a pre-pressing mechanism (2) and a ball pressing mechanism (3). The top of the ball pressing box (1) is fixedly sleeved with a feeding cylinder (4). The top of the feeding cylinder (4) is fixedly connected with a storage hopper (5). The bottom end of the feeding cylinder (4) extends into the inner cavity of the ball pressing box (1) and is fixedly connected with a feeding square tube (6). The top surface of the storage hopper (5) is fixedly connected with a support frame (7). The top surface of the support frame (7) is fixedly installed with a first motor (8). The output shaft of the first motor (8) extends into the inner cavity of the storage hopper (5) and is fixedly connected with a stirring rod (9) through a coupling. The bottom end of the stirring rod (9) extends into the inner cavity of the feeding cylinder (4) and is fixedly connected with a spiral conveying rod (10). The side of the stirring rod (9) and located in the inner cavity of the storage hopper (5) are fixedly connected with multiple crushing blades (11).

2. The pre-pressurizing feeding device for a briquetting machine according to claim 1, characterized in that: The pre-pressing mechanism (2) includes two pre-pressing rollers (12) rotatably connected to the inner cavity of the ball pressing box (1) and a second motor (13) fixedly installed on the front of the ball pressing box (1). The output shaft of the second motor (13) is connected to one end of the rotating shaft of a pre-pressing roller (12) through a coupling. The other ends of the rotating shafts of the two pre-pressing rollers (12) extend to the outside of the ball pressing box (1) and are fixedly fitted with first gears (14). The two first gears (14) mesh with each other.

3. The pre-pressurizing feeding device for a briquetting machine according to claim 2, characterized in that: The ball pressing mechanism (3) includes two ball pressing rollers (15) rotatably connected to the inner cavity of the ball pressing box (1) and a third motor (16) fixedly installed on the front of the ball pressing box (1). The output shaft of the third motor (16) is connected to one end of the rotating shaft of a ball pressing roller (15) through a coupling. The other ends of the rotating shafts of the two ball pressing rollers (15) extend to the outside of the ball pressing box (1) and are fixedly fitted with second gears (17). The two second gears (17) mesh with each other.

4. The pre-pressurizing feeding device for a briquetting machine according to claim 3, characterized in that: A control panel (20) is fixedly installed on the front of the ball pressing box (1). The control panel (20) is electrically connected to the second motor (13), the third motor (16) and the first motor (8).

5. The pre-pressurizing feeding device for a briquetting machine according to claim 1, characterized in that: The bottom of the ball pressing box (1) is provided with a discharge port (18), and a number of support columns (19) are fixedly connected to the bottom surface of the ball pressing box (1). Limit seats (21) are provided on both sides of the inner cavity of the ball pressing box (1). The top and bottom surfaces of the limit seats (21) are respectively attached to the top and bottom surfaces of the pre-pressing roller (12).

6. The pre-pressurizing feeding device for a briquetting machine according to claim 1, characterized in that: The side of the spiral feed rod (10) is in contact with the inner wall of the feed cylinder (4).

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