Mixing device with scraping function for magnesia carbon brick preparation

Abstract

The invention provides a magnesia carbon brick preparation mixing device with a scraping function, and relates to the technical field of magnesia carbon brick raw material mixing, the magnesia carbon brick preparation mixing device comprises a mixing tank, the top of the mixing tank is provided with a feeding mechanism, the bottom of the mixing tank is provided with a discharge port, the mixing tank is internally provided with a stirring mechanism, the mixing tank is internally provided with a scraping ring, and the outer wall of the scraping ring is in vertical sliding connection with the inner wall of the mixing tank; a driving mechanism is arranged on the mixing tank and is used for driving the scraping ring to slide up and down along the inner wall of the mixing tank. According to the magnesia carbon brick preparation device, magnesia carbon brick preparation raw materials in the mixing tank can be uniformly mixed through the stirring mechanism, after mixing is completed, the mixed raw materials are discharged out of the mixing tank through the discharging port, and then the scraping ring is driven by the driving mechanism to slide up and down along the inner wall of the mixing tank, so that the raw materials attached to the inner wall of the mixing tank are scraped; the uniformity of next raw material mixing is not influenced, and the preparation quality of the magnesia carbon brick is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of magnesia carbon brick raw material mixing, in particular to a mixing device for preparing magnesia carbon bricks with a scraping function. Background Art

[0002] Magnesia carbon brick is a composite refractory material made of high melting point basic oxide magnesium oxide and high melting point carbon material that is difficult to be wetted by slag as raw materials, adding various non-oxide additives and combining with carbon binder. Magnesia carbon brick is mainly used for the lining of converter, AC arc furnace, DC arc furnace, slag line of ladle and other parts. As a composite refractory material, magnesia carbon brick effectively utilizes the strong slag erosion resistance of magnesia sand and the high thermal conductivity and low expansion of carbon, compensating for the biggest disadvantage of magnesia sand's poor spalling resistance.

[0003] The production process of magnesium carbon bricks mainly includes the steps of raw material preparation, batching, mixing, molding, drying and firing. During the mixing process, a high-speed mixer is required to mix the raw materials. For example, the Chinese patent with the authorization announcement number CN217257226U discloses a raw material premixing device for a high-speed mixer for the production of magnesium carbon bricks, including a device body, a support frame is fixedly installed on the side wall of the device body symmetrically, a rotating frame is rotatably connected to the inner cavity of the device body, a fixed shaft that passes through the rotating frame is fixedly installed at the bottom of the device body, a material distribution mechanism is rotatably connected to the top of the fixed shaft, a feeding mechanism is fixedly installed at the top of the device body, and a discharge pipe is fixedly installed at the bottom of the rotating frame. The raw materials are premixed in advance by this device, which ensures that the subsequent high-speed mixer has a better mixing effect when mixing the raw materials, and ensures that the raw materials are mixed more fully.

[0004] In the above scheme, the rotating frame in the device can be rotated by the transmission assembly. While the rotating frame is rotating, the raw materials are premixed by the stirring device in the inner cavity of the rotating frame, and the uniformity of the raw material mixing is ensured by the cooperation of the top material dividing mechanism. However, during the raw material mixing process of magnesia carbon brick preparation, some raw materials are easy to adhere to the inner wall of the mixing device, which affects the uniformity of the raw material mixing and reduces the preparation quality of magnesia carbon brick. Summary of the invention

[0005] The present invention provides a mixing device with a scraping function for preparing magnesia carbon bricks, which is used to solve the technical problem that during the mixing process of raw materials for preparing magnesia carbon bricks, some raw materials are easily adhered to the inner wall of the mixing device, affecting the uniformity of raw material mixing and reducing the preparation quality of magnesia carbon bricks.

[0006] In order to solve the above technical problems, the present invention discloses a mixing device for preparing magnesia-carbon bricks with a scraping function, comprising: a mixing tank, a feeding mechanism is arranged on the top of the mixing tank, a discharge port is arranged at the bottom of the mixing tank, a stirring mechanism is arranged in the mixing tank, a scraper ring is arranged in the mixing tank, the outer wall of the scraper ring is connected to the inner wall of the mixing tank for sliding up and down, and a driving mechanism is arranged on the mixing tank, and the driving mechanism is used to drive the scraper ring to slide up and down along the inner wall of the mixing tank.

[0007] Preferably, the driving mechanism includes two mounting holes, which are respectively arranged inside the left and right side walls of the mixing tank. A reciprocating screw is arranged in one of the mounting holes, one end of the reciprocating screw is rotatably connected to the bottom wall of the mounting hole, and the other end of the reciprocating screw extends to the outside of the mixing tank and is connected to the output end of the driving motor. A plurality of sliding holes are arranged on the inner wall of the mixing tank, the sliding holes are connected to the mounting holes, a slider is slidably arranged in the sliding hole, one end of the slider is connected to the outer wall of the scraper ring, and the slider close to the reciprocating screw is transmission-connected to the outer wall of the reciprocating screw.

[0008] Preferably, the feeding mechanism includes a plurality of lower hoppers, which are arranged on the top of the mixing tank, and the lower ends of the lower hoppers are connected to the interior of the mixing tank.

[0009] Preferably, the stirring mechanism includes a stirring shaft, the upper end of the stirring shaft is rotatably connected to the center position of the top of the mixing tank, a plurality of stirring rods are arranged on the outer wall of the stirring shaft, a stirring motor is arranged on the top of the mixing tank, and the output end of the stirring motor is connected to the upper end of the stirring shaft.

[0010] Preferably, a sealing mechanism is provided in the sliding hole, and the sealing mechanism includes a plurality of sealing plates. Two adjacent sealing plates are fitted together, and two adjacent sealing plates are connected by a connecting assembly. The upper end of the sealing plate close to the mounting hole is connected to the bottom wall of the slider, and the lower end of the sealing plate away from the mounting hole is connected to the lower end of the sliding hole.

[0011] Preferably, the connecting component includes a slide groove and a connecting block. The slide groove is arranged on the side of the blocking plate close to the mounting hole. The connecting block is arranged in the slide groove. The connecting block is slidably connected to the inner wall of the slide groove up and down. One end of the connecting block extends to the outside of the slide groove and is connected to the adjacent side wall of the blocking plate.

[0012] Preferably, a first inclined surface is provided on a side of the upper end of the blocking plate away from the mounting hole.

[0013] Preferably, a lower material bin is arranged near the lower end of the mixing tank, the lower material bin is funnel-shaped, and the lower end of the lower material bin is connected to the discharge port.

[0014] Preferably, a guide rod is arranged in the mounting hole away from the reciprocating screw, the guide rod is arranged vertically, and the sliding block away from the reciprocating screw is connected to the outer wall of the guide rod by sliding up and down through the through hole.

[0015] Preferably, a rotating ring is provided on the inner wall of the scraper ring, the rotating ring and the scraper ring are arranged concentrically, the outer wall of the rotating ring is rotatably connected to the inner wall of the scraper ring, a gear ring is sleeved on the upper end of the rotating ring, the inner ring of the gear ring is connected to the outer wall of the rotating ring, the gear ring is driven to rotate by a transmission mechanism, the bottom of the rotating ring extends to the bottom of the scraper ring and a connecting plate is provided, a scraper is provided at one end of the connecting plate away from the rotating ring, and one side of the scraper is in contact with the inner wall of the mixing tank.

[0016] The technical solution of the present invention has the following advantages: the present invention provides a mixing device for preparing magnesium carbon bricks with a scraping function, which relates to the technical field of mixing raw materials for magnesium carbon bricks, including a mixing tank, a feeding mechanism is arranged on the top of the mixing tank, a discharge port is arranged on the bottom of the mixing tank, a stirring mechanism is arranged in the mixing tank, a scraping ring is arranged in the mixing tank, the outer wall of the scraping ring is connected to the inner wall of the mixing tank by sliding up and down, and a driving mechanism is arranged on the mixing tank, and the driving mechanism is used to drive the scraping ring to slide up and down along the inner wall of the mixing tank. In the present invention, the raw materials for preparing magnesium carbon bricks in the mixing tank can be mixed evenly through the stirring mechanism. After the mixing is completed, the mixed raw materials are discharged from the mixing tank through the discharge port, and then the scraping ring is driven by the driving mechanism to slide up and down along the inner wall of the mixing tank, thereby scraping off the raw materials attached to the inner wall of the mixing tank, which will not affect the uniformity of the next raw material mixing, and ensure the preparation quality of magnesium carbon bricks.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the devices particularly pointed out in the written description and the drawings of the description.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a mixing device for preparing magnesia carbon bricks with a scraping function according to the present invention;

[0021] Figure 2 For the present invention Figure 1 A magnified view of the structure at center;

[0022] Figure 3 For the present invention Figure 2 A magnified view of the structure at C in the middle;

[0023] Figure 4 For the present invention Figure 1 A magnified view of the structure at B in the middle;

[0024] Figure 5 It is a top view of the rotating ring in the present invention.

[0025] In the figure: 1. mixing tank; 2. discharge port; 3. scraper ring; 4. reciprocating screw; 5. drive motor; 6. sliding hole; 7. slider; 8. lower hopper; 9. stirring shaft; 10. stirring rod; 11. stirring motor; 12. blocking plate; 13. slide groove; 14. connecting block; 15. guide rod; 16. rotating ring; 17. gear ring; 18. connecting plate; 19. scraper; 20. limit block; 21. horizontal rotating shaft; 22. first bevel gear; 23. first gear; 24. rack; 25. second bevel gear; 26. vertical rotating shaft; 27. second gear; 28. annular cavity; 29. ​​nozzle; 30. nozzle; 31. rotating circle; 32. toggle bar; 33. scraper bar. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] Example 1

[0029] The embodiment of the present invention provides a mixing device for preparing magnesia carbon bricks with a scraping function, such as Figure 1-Figure 5 As shown, it comprises: a mixing tank 1, a feeding mechanism is arranged on the top of the mixing tank 1, a discharging port 2 is arranged at the bottom of the mixing tank 1, a stirring mechanism is arranged inside the mixing tank 1, a scraper ring 3 is arranged inside the mixing tank 1, the outer wall of the scraper ring 3 is connected with the inner wall of the mixing tank 1 for sliding up and down, and a driving mechanism is arranged on the mixing tank 1, and the driving mechanism is used to drive the scraper ring 3 to slide up and down along the inner wall of the mixing tank 1;

[0030] The driving mechanism includes two mounting holes, which are respectively arranged inside the left and right side walls of the mixing tank 1. A reciprocating screw 4 is arranged in one of the mounting holes, one end of the reciprocating screw 4 is rotatably connected to the bottom wall of the mounting hole, and the other end of the reciprocating screw 4 extends to the outside of the mixing tank 1 and is connected to the output end of the driving motor 5. A plurality of sliding holes 6 are arranged on the inner wall of the mixing tank 1, and the sliding holes 6 are connected to the mounting holes. A slider 7 is slidably arranged in the sliding hole 6, and one end of the slider 7 is connected to the outer wall of the scraper ring 3. The slider 7 close to the reciprocating screw 4 is transmission-connected to the outer wall of the reciprocating screw 4.

[0031] The working principle and beneficial effects of the above technical solution are as follows: the raw materials for preparing magnesia carbon bricks are mixed with a variety of different raw materials. First, different raw materials are put into the mixing tank 1 through a feeding mechanism, and then the raw materials in the mixing tank 1 are stirred by a stirring mechanism. After stirring for a preset time, the valve at the discharge port 2 is opened, and the mixed raw materials for preparing magnesia carbon bricks can be discharged from the discharge port 2. During the mixing process, some raw materials are easily attached to the inner wall of the mixing tank 1, resulting in some raw materials remaining. When the raw materials are mixed next time, if the sticky raw materials fall into the stirred raw materials under the action of stirring, it will affect the uniformity of the raw material mixing and reduce the preparation quality of magnesia carbon bricks. In addition, it is not easy for humans to enter the interior of the mixing tank 1, and it is difficult to clean the raw materials attached to the inner wall of the mixing tank 1. Therefore, the present application sets a scraper ring 3 inside the mixing tank 1, and the outer wall of the scraper ring 3 is close to the mixing tank 1. The inner wall of the tank 1 is fitted, and after the raw materials for preparing the magnesia-carbon bricks to be mixed are all discharged from the discharge port 2, the driving motor 5 is started, and the driving motor 5 rotates to drive the reciprocating screw 4 to rotate, and the reciprocating screw 4 rotates to drive the slider 7 to slide up and down in the sliding hole 6, and the slider 7 drives the scraper ring 3 to slide downward along the inner wall of the mixing tank 1, thereby completing the scraping. After the scraping is completed, under the transmission action of the reciprocating screw 4, the scraper ring 3 can be restored to its original position for the next scraping. The scraper ring 3 slides downward to scrape off the raw materials attached to the inner wall of the mixing tank 1, and the attached raw materials are discharged from the discharge port 2, which will not affect the uniformity of the next raw material mixing, thereby ensuring the preparation quality of the magnesia-carbon bricks, and the scraper ring 3 can scrape off the raw materials sticking to the wall, which can replace manual cleaning, reduce the labor intensity of the staff, improve the safety of the operation, and extend the service life of the mixing device.

[0032] Example 2

[0033] On the basis of the above-mentioned embodiment 1, Figure 1 As shown, the feeding mechanism includes a plurality of lower hoppers 8 , which are arranged on the top of the mixing tank 1 , and the lower ends of the lower hoppers 8 are connected to the interior of the mixing tank 1 .

[0034] The working principle and beneficial effects of the above technical solution are as follows: raw materials can be fed through multiple feed hoppers 8, which can not only realize multi-point distribution of raw materials in the mixing tank 1, but also help the raw materials to fully contact and mix during the mixing process, improve the mixing uniformity, but also increase the feeding speed and improve the preparation efficiency.

[0035] Example 3

[0036] On the basis of Example 1 or 2, Figure 1 As shown, the stirring mechanism includes a stirring shaft 9, the upper end of the stirring shaft 9 is rotatably connected to the top center position of the mixing tank 1, a plurality of stirring rods 10 are arranged on the outer wall of the stirring shaft 9, a stirring motor 11 is arranged on the top of the mixing tank 1, and the output end of the stirring motor 11 is connected to the upper end of the stirring shaft 9.

[0037] The working principle and beneficial effects of the above technical solution are as follows: after the prepared raw materials are put into the mixing tank 1, the stirring motor 11 is started, the stirring motor 11 rotates to drive the stirring shaft 9 to rotate, and the stirring shaft 9 rotates to drive the stirring rod 10 to rotate, and the stirring rod 10 can stir the raw materials so that the prepared raw materials are mixed evenly.

[0038] Example 4

[0039] On the basis of any one of Examples 1-3, Figure 1-Figure 3 As shown, a blocking mechanism is provided in the sliding hole 6, and the blocking mechanism includes a plurality of blocking plates 12, and two adjacent blocking plates 12 are fitted with each other, and are connected by a connecting assembly, and the upper end of the blocking plate 12 close to the mounting hole is connected to the bottom wall of the slider 7, and the lower end of the blocking plate 12 away from the mounting hole is connected to the lower end of the sliding hole 6;

[0040] The connecting assembly includes a slide groove 13 and a connecting block 14. The slide groove 13 is arranged on the side of the blocking plate 12 close to the mounting hole. The connecting block 14 is arranged in the slide groove 13. The connecting block 14 is slidably connected with the inner wall of the slide groove 13 up and down. One end of the connecting block 14 extends to the outside of the slide groove 13 and is connected with the adjacent side wall of the blocking plate 12.

[0041] A first inclined surface is provided on the upper end of the blocking plate 12 away from the mounting hole.

[0042] The working principle and beneficial effects of the above technical solution are as follows: in order to prevent the raw materials from entering the mounting hole through the sliding hole 6 during the stirring and mixing process, a blocking mechanism is arranged in the sliding hole 6, and the blocking mechanism includes a plurality of blocking plates 12, and the front and rear sides of the blocking plates 12 are respectively slidably connected with the front and rear side walls of the sliding hole 6. When the scraper ring 3 slides downward, the slider 7 drives the uppermost blocking plate 12 to slide downward first, and the connecting block 14 slides downward in the slide groove 13. When the connecting block 14 of the uppermost blocking plate 12 slides to the lowermost end of the slide groove 13, the connecting block 14 drives the second blocking plate 12 to slide downward, and so on, until the slider 7 slides to the preset uppermost The scraper 4 moves downwards and the blocking plate 12 moves away from the mounting hole 6 to prevent the raw materials from remaining in the sliding hole 6.

[0043] Example 5

[0044] On the basis of any one of Examples 1-4, Figure 1 As shown, a lower material bin is arranged near the lower end of the mixing tank 1 , the lower material bin is funnel-shaped, and the lower end of the lower material bin is connected to the discharge port 2 .

[0045] The working principle and beneficial effects of the above technical solution are as follows: after the raw materials are mixed, the valve arranged at the discharge port 2 is opened, and the mixed raw materials flow out smoothly from the discharge port 2 through the funnel-shaped lower bin, thereby increasing the discharge speed of the mixed raw materials and improving production efficiency.

[0046] Example 6

[0047] On the basis of Example 5, Figure 1 , Figure 2 As shown, a guide rod 15 is arranged in the mounting hole away from the reciprocating screw 4, the guide rod 15 is arranged vertically, and the slider 7 away from the reciprocating screw 4 is connected to the outer wall of the guide rod 15 by sliding up and down through the through hole.

[0048] The working principle and beneficial effects of the above technical solution are as follows: when one of the sliders 7 drives the scraper ring 3 to slide downward, the scraper ring 3 can drive the slider 7 on the other side to slide downward along the sliding hole 6, and the slider 7 away from the reciprocating screw 4 slides downward on the guide rod 15, thereby improving the reliability of the scraper ring 3 sliding downward and ensuring the scraping effect.

[0049] Example 7

[0050] On the basis of Example 6, Figure 2 As shown, a rotating ring 16 is arranged on the inner wall of the scraper ring 3, the rotating ring 16 is arranged concentrically with the scraper ring 3, the outer wall of the rotating ring 16 is rotatably connected with the inner wall of the scraper ring 3, a gear ring 17 is sleeved on the upper end of the rotating ring 16, the inner ring of the gear ring 17 is connected with the outer wall of the rotating ring 16, the gear ring 17 is driven to rotate by a transmission mechanism, the bottom of the rotating ring 16 extends to the bottom of the scraper ring 3 and is provided with a connecting plate 18, a scraper 19 is arranged at one end of the connecting plate 18 away from the rotating ring 16, and one side of the scraper 19 is in contact with the inner wall of the mixing tank 1;

[0051] The transmission mechanism includes a limit block 20, which is arranged on the upper surface of the slider 7 near the guide rod 15. A horizontal rotating shaft 21 is arranged in the limit block 20, and the horizontal rotating shaft 21 is rotatably connected to the limit block 20. A first bevel gear 22 is arranged at one end of the horizontal rotating shaft 21 near the scraper ring 3, and a first gear 23 is arranged at the other end of the horizontal rotating shaft 21. The first gear 23 is meshed with the side wall of the rack 24, and the rack 24 is vertically arranged in the mounting hole. The first bevel gear 22 is meshed with the second bevel gear 25, and the second bevel gear 25 is arranged on the vertical rotating shaft 26. The lower end of the vertical rotating shaft 26 is rotatably connected to the upper surface of the scraper ring 3, and a second gear 27 is arranged at the upper end of the vertical rotating shaft 26. The second gear 27 is meshed with the outer wall of the gear ring 17.

[0052] The working principle and beneficial effects of the above technical solution are as follows: when the slider 7 slides downward along the guide rod 15, the first gear 23 above the slider 7 meshes with the rack 24 and rotates under the action of the rack 24. The rotation of the first gear 23 drives the horizontal shaft 21 to rotate. The rotation of the horizontal shaft 21 drives the first bevel gear 22 to rotate. The rotation of the first bevel gear 22 drives the second bevel gear 25 to rotate. The rotation of the second bevel gear 25 drives the vertical shaft 26 to rotate. The rotation of the vertical shaft 26 drives the second gear 27 to rotate. The rotation of the second gear 27 can drive the gear ring 17 to rotate. The rotation of the gear ring 17 drives the rotating ring to rotate on the inner wall of the scraper ring 3. When the rotating ring 16 rotates, the scraper 19 is driven to rotate through the connecting plate 18. The scraper 19 can rotate along the inner wall of the mixing tank 1, and scrape off the particles adhering to the mixing tank during the rotation process. 1, the raw materials adhering to the wall are scraped off by the scraper ring 3 along the vertical direction of the mixing tank 1, and the raw materials adhering to the wall are scraped off by the scraper 19 along the circumferential direction of the mixing tank 1. The combination of the two can improve the scraping effect and avoid the raw materials adhering to the wall from remaining on the inner wall of the mixing tank 1, and by setting a plurality of scrapers 19, during the stirring and mixing process, the scrapers 19 can increase the collision opportunities of the raw materials during the stirring process, increase the interaction force between the raw materials, help to mix the raw materials more evenly, improve the stirring effect, ensure the preparation quality of the magnesia carbon bricks, and the protruding scrapers 19 make the raw materials constantly collide and rub against the inner wall during the stirring process, thereby reducing the attachment and accumulation of the raw materials on the inner wall, helping to reduce the wall adhesion phenomenon of the raw materials during the stirring and mixing process, reducing the waste of raw materials and reducing the preparation cost.

[0053] Example 8

[0054] On the basis of Example 7, Figure 2 , Figure 5 As shown, an annular cavity 28 is arranged inside the rotating ring 16, a pump body is arranged outside the mixing tank 1, and the output end of the pump body is connected with the annular cavity 28 through a telescopic hose. Two nozzles 29 are arranged in the inner circle of the rotating ring 16, and the two nozzles 29 are arranged symmetrically on the left and right. One end of the nozzle 29 is connected with the inside of the annular cavity 28, and a plurality of spray holes are arranged on the outer wall of the nozzle 29, and a nozzle 30 is installed outside the spray hole.

[0055] The working principle and beneficial effects of the above technical solution are as follows: when the scraper ring 3 slides downward, the pump body is started, and the input end of the pump body is connected to the storage tank. The fluid is stored in the storage tank. The fluid is compressed gas or cleaning liquid. The fluid can be transported to the annular cavity 28 of the rotating ring 16 through the pump body, and then sprayed out through multiple nozzles 30. When the rotating ring 16 rotates, it can drive the nozzle 29 to rotate, so that the fluid sprayed by the nozzle 30 continuously changes its position. The spraying direction of the nozzle 30 includes but is not limited to the direction of the stirring shaft 9, the direction of the stirring rod 10 and the side wall of the mixing tank 1. The high-pressure fluid sprayed out can clean the stirring shaft 9, the stirring rod 10 and the inner wall of the mixing tank 1, remove the raw materials adhered to the stirring shaft 9 and the stirring rod 10, reduce the residual raw materials, and improve the scraping effect. Two nozzles 29 are provided, and the two nozzles 29 are in a straight line. When the scraping ring 3 slides downward, the rotating ring 16 drives the nozzle 29 to rotate, which can avoid the nozzle 29 from colliding with the stirring rod 10. When the nozzle 29 reaches the bottom of the stirring rod 10, the nozzle 30 can also rinse the lower surface of the stirring rod 10, further remove the adhered raw materials, and improve the cleaning effect.

[0056] Example 9

[0057] On the basis of Example 7 or 8, Figure 1 , Figure 4 As shown, a rotating circle 31 is arranged inside the mixing tank 1, and the rotating circle 31 is located near the lower end of the mixing tank 1. The outer wall of the rotating circle 31 is rotatably connected to the inner wall of the mixing tank 1, and a second inclined surface is arranged on the inner circle of the rotating circle 31. A plurality of toggle bars 32 are arranged on the upper surface of the rotating circle 31, and the toggle bars 32 are arranged vertically. A plurality of scraping bars 33 are arranged on the lower surface of the rotating circle 31, and the scraping bars 33 are in contact with the inner wall of the lower silo.

[0058] The working principle and beneficial effects of the above technical scheme are as follows: as the scraper ring 3 slides downward, the scraper 19 slides downward with the rotating ring 16. When the scraper 19 contacts the side wall of the toggle bar 32, the scraper 19 will vibrate due to the initial contact, thereby shaking off the raw materials attached to the scraper 19. Then the scraper 19 can drive the toggle bar 32 to move, and the toggle bar 32 drives the rotating circle 31 to rotate in the mixing tank 1. The rotating circle 31 drives the scraper bar 33 to slide along the inner wall of the lower silo, thereby scraping off the raw materials attached to the inner wall of the lower silo. The scraped raw materials finally flow out from the discharge port 2. The above scheme can further scrape off the attached raw materials, making the scraping of the raw materials more comprehensive and improving the scraping effect.

[0059] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A mixing device for preparing magnesia carbon bricks with a scraping function, characterized in that: include: A mixing tank (1), wherein a feeding mechanism is arranged at the top of the mixing tank (1), a discharging port (2) is arranged at the bottom of the mixing tank (1), a stirring mechanism is arranged inside the mixing tank (1), a scraper ring (3) is arranged inside the mixing tank (1), an outer wall of the scraper ring (3) is connected to an inner wall of the mixing tank (1) in an up-and-down sliding manner, and a driving mechanism is arranged on the mixing tank (1), and the driving mechanism is used to drive the scraper ring (3) to slide up and down along the inner wall of the mixing tank (1).

2. A mixing device for preparing magnesia carbon bricks with a scraping function according to claim 1, characterized in that: The driving mechanism comprises two mounting holes, which are respectively arranged inside the left and right side walls of the mixing tank (1), a reciprocating screw (4) is arranged in one of the mounting holes, one end of the reciprocating screw (4) is rotatably connected to the bottom wall of the mounting hole, the other end of the reciprocating screw (4) extends to the outside of the mixing tank (1) and is connected to the output end of the driving motor (5), a plurality of sliding holes (6) are arranged on the inner wall of the mixing tank (1), the sliding holes (6) are connected to the mounting holes, a sliding block (7) is slidably arranged in the sliding hole (6), one end of the sliding block (7) is connected to the outer wall of the scraper ring (3), and the sliding block (7) close to the reciprocating screw (4) is drivingly connected to the outer wall of the reciprocating screw (4).

3. The mixing device for preparing magnesia carbon bricks with a scraping function according to claim 1, characterized in that: The feeding mechanism comprises a plurality of lower hoppers (8), the lower hoppers (8) are arranged on the top of the mixing tank (1), and the lower ends of the lower hoppers (8) are communicated with the interior of the mixing tank (1).

4. The mixing device for preparing magnesia carbon bricks with a scraping function according to claim 1, characterized in that: The stirring mechanism comprises a stirring shaft (9), the upper end of the stirring shaft (9) is rotatably connected to the center position of the top of the mixing tank (1), a plurality of stirring rods (10) are arranged on the outer wall of the stirring shaft (9), a stirring motor (11) is arranged on the top of the mixing tank (1), and the output end of the stirring motor (11) is connected to the upper end of the stirring shaft (9).

5. The mixing device for preparing magnesia carbon bricks with a scraping function according to claim 2, characterized in that: A blocking mechanism is arranged in the sliding hole (6), and the blocking mechanism comprises a plurality of blocking plates (12). Two adjacent blocking plates (12) are fitted with each other and connected via a connecting assembly. The upper end of the blocking plate (12) close to the mounting hole is connected to the bottom wall of the sliding block (7), and the lower end of the blocking plate (12) away from the mounting hole is connected to the lower end of the sliding hole (6).

6. A mixing device for preparing magnesia carbon bricks with a scraping function according to claim 5, characterized in that: The connection assembly comprises a slide groove (13) and a connection block (14); the slide groove (13) is arranged on a side of the blocking plate (12) close to the mounting hole; the connection block (14) is arranged in the slide groove (13); the connection block (14) is slidably connected to the inner wall of the slide groove (13) up and down; one end of the connection block (14) extends to the outside of the slide groove (13) and is connected to the adjacent side wall of the blocking plate (12).

7. The mixing device for preparing magnesia carbon bricks with a scraping function according to claim 5, characterized in that: A first inclined surface is provided on the upper end of the blocking plate (12) away from the mounting hole.

8. The mixing device for preparing magnesia carbon bricks with a scraping function according to claim 2, characterized in that: A lower material bin is arranged near the lower end of the mixing tank (1). The lower material bin is funnel-shaped, and the lower end of the lower material bin is connected to the discharge port (2).

9. A mixing device for preparing magnesia carbon bricks with a scraping function according to claim 8, characterized in that: A guide rod (15) is arranged in a mounting hole away from the reciprocating screw (4), the guide rod (15) is arranged vertically, and a slider (7) away from the reciprocating screw (4) is connected to the outer wall of the guide rod (15) by sliding up and down through a through hole.

10. A mixing device for preparing magnesia carbon bricks with a scraping function according to claim 9, characterized in that: A rotating ring (16) is arranged on the inner wall of the scraper ring (3), the rotating ring (16) and the scraper ring (3) are arranged concentrically, the outer wall of the rotating ring (16) is rotatably connected to the inner wall of the scraper ring (3), a gear ring (17) is sleeved on the upper end of the rotating ring (16), the inner ring of the gear ring (17) is connected to the outer wall of the rotating ring (16), the gear ring (17) is driven to rotate by a transmission mechanism, the bottom of the rotating ring (16) extends to the bottom of the scraper ring (3) and is provided with a connecting plate (18), a scraper (19) is arranged at one end of the connecting plate (18) away from the rotating ring (16), and one side of the scraper (19) is in contact with the inner wall of the mixing tank (1).

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