Raw material mixing and screening device for producing magnesia carbon bricks

Abstract

The utility model relates to a mixing and screening device, in particular to a raw material mixing and screening device for producing magnesia carbon bricks, which comprises a base, a mixing barrel, a first screening frame, a second screening frame, a feeding pipe and the like. A material mixing barrel is installed on the base, a feeding pipe is connected to the outer wall of one end of the material mixing barrel through a connecting frame, a first screening frame and a second screening frame which are different in diameter are arranged in the material mixing barrel, the feeding pipe is communicated with the first screening frame, and the second screening frame is arranged on the outer side of the first screening frame. The raw materials in the first screening frame are stirred and screened through the first stirring blades, primary screening of the raw materials is achieved, the raw materials in the second screening frame are subjected to secondary screening through the second stirring blades, the raw materials obtained after secondary screening fall into the material mixing barrel, the raw materials in the material mixing barrel are fully mixed through the stirrer, and the raw materials in the material mixing barrel are fully mixed. And screening and mixing are synchronously carried out, so that the production efficiency of the magnesia carbon bricks is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of mixed screening devices, especially a kind of raw material mixing screening device for producing magnesia carbon brick. BACKGROUND

[0002] Magnesia carbon brick is with high melting point alkaline oxide magnesium oxide (melting point 2800 ℃) and difficult to be invaded by slag high melting point carbon material as raw material, add various non-oxide additives, with carbonaceous binder combination and become not burn carbon composite refractory;Because it has good high-temperature performance, slag erosion resistance and thermal shock stability, mainly used in steel industry in steel furnace and other high-temperature smelting equipment.

[0003] Magnesia carbon brick production needs to screen various raw materials required, to ensure that particle size distribution meets the requirements of magnesia carbon brick production, then the screened raw materials are fully mixed.The existing mixing screening operation is completed by screening device and mixing device step by step, and there is the defect of low efficiency.

[0004] Therefore, a raw material mixing screening device for producing magnesia carbon brick is needed to design, which integrates screening and mixing to improve the screening and mixing efficiency and the production efficiency of magnesia carbon brick. UTILITY MODEL CONTENT

[0005] The technical scheme of the utility model is: a raw material mixing screening device for producing magnesia carbon brick, comprising a base, a mixing cylinder, a first screening frame, a second screening frame, a feeding pipe, a connecting frame, a rotating rod, a first stirring blade, a connecting plate, a second stirring blade, a power assembly and a mixing assembly, the base is provided with the mixing cylinder, the mixing cylinder is connected with the feeding pipe through the connecting frame on one end of the outer wall, the mixing cylinder is provided with the first screening frame and the second screening frame with different diameters, the feeding pipe is in communication with the first screening frame, the second screening frame is arranged outside the first screening frame, the rotating rod is rotatably connected in the mixing cylinder, the first stirring blade is installed on the rotating rod, the first stirring blade is arranged in the first screening frame, one end of the rotating rod is connected with the connecting plate, the second stirring blade is connected to the connecting plate, the second stirring blade is arranged between the first screening frame and the second screening frame, the mixing assembly for stirring and mixing the screened raw materials is arranged in the mixing cylinder, and the power assembly for driving the rotating rod to rotate is arranged on the mixing cylinder.

[0006] As a preferred technical scheme of the utility model, the inner diameter of the first screening frame is matched with the maximum opening of the feeding pipe.

[0007] As a preferred technical scheme of the utility model, the power assembly comprises a motor and a first belt pulley set, the motor is installed on the top of the mixing cylinder, and the output shaft of the motor is provided with the first belt pulley set for transmitting power from the motor to the rotating rod.

[0008] As a preferred technical scheme of the utility model, the mixing assembly comprises a second belt pulley set and a stirrer, the stirrer is arranged between the second screening frame and the inner wall of the mixing cylinder, the stirrer is rotationally connected with the inner wall of the two ends of the mixing cylinder, and the second belt pulley set is arranged between the stirrer and the rotating rod.

[0009] As a preferred technical scheme of the utility model, the mixing assembly comprises a second belt pulley set and a stirrer, the stirrer is arranged between the second screening frame and the inner wall of the mixing cylinder, the stirrer is rotationally connected with the inner wall of the two ends of the mixing cylinder, and the second belt pulley set is arranged between the stirrer and the rotating rod.

[0010] As a preferred technical scheme of the utility model, the mixing assembly comprises a second belt pulley set and a stirrer, the stirrer is arranged between the second screening frame and the inner wall of the mixing cylinder, the stirrer is rotationally connected with the inner wall of the two ends of the mixing cylinder, and the second belt pulley set is arranged between the stirrer and the rotating rod.

[0011] As a preferred technical scheme of the utility model, the mixing assembly comprises a second belt pulley set and a stirrer, the stirrer is arranged between the second screening frame and the inner wall of the mixing cylinder, the stirrer is rotationally connected with the inner wall of the two ends of the mixing cylinder, and the second belt pulley set is arranged between the stirrer and the rotating rod.

[0012] As a preferred technical scheme of the utility model, the mixing cylinder is provided with a guide plate at the lower part of the two ends.

[0013] The utility model has the advantages that: the first stirring blade is used for stirring and screening the raw materials in the first screening frame, the particles with a size greater than the mesh of the first screening frame are blocked in the first screening frame, the particles with a size smaller than the mesh of the first screening frame fall into the second screening frame, the primary screening of the raw materials is realized, the second stirring blade is used for secondary screening of the raw materials in the second screening frame, the raw materials obtained through the secondary screening fall into the mixing cylinder, the stirrer is used for fully mixing the raw materials in the mixing cylinder, so that the production raw materials of the magnesite carbon brick are obtained, the screening and mixing are simultaneously performed, and the production efficiency of the magnesite carbon brick is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is a first sectional view schematic diagram of the mixing barrel of the utility model.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating rod, the first stirring blade, the connecting plate, the second stirring blade, the second belt pulley set and the stirrer of the utility model.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the second unloading baffle and the limiting sliding plate one of the utility model.

[0018] Figure 5 It is a second sectional view schematic diagram of the mixing barrel of the utility model.

[0019] Figure 6 It is a schematic diagram of the local three-dimensional structure of the mixing barrel, the third unloading baffle, the limiting plate two and other components of the utility model.

[0020] Wherein: 1 - base, 2 - mixing barrel, 21 - first screening frame, 22 - second screening frame, 23 - guide plate, 3 - feeding pipe, 31 - connecting frame, 4 - motor, 41 - first belt pulley set, 5 - rotating rod, 51 - first stirring blade, 52 - connecting plate, 53 - second stirring blade, 6 - second belt pulley set, 61 - stirrer, 7 - second unloading baffle, 71 - limiting sliding plate one, 72 - spring one, 73 - third unloading baffle, 731 - limiting sliding plate two, 74 - guide rod, 75 - spring two, 8 - limiting plate one, 81 - limiting plate two, 9 - first unloading baffle, 91 - pull plate, 92 - guide block. DETAILED DESCRIPTION

[0021] The utility model is described in detail below in combination with the drawings and specific embodiments, but not as the limitation of the utility model.

[0022] Embodiment: a raw material mixing and screening device for producing magnesite carbon brick, such as Figure 1 , Figure 2 and Figure 3As shown, including the base 1, mixing barrel 2, first screening frame 21, second screening frame 22, feeding pipe 3, connecting frame 31, rotating rod 5, first stirring blade 51, connecting plate 52, second stirring blade 53, power assembly and mixing assembly, the base 1 is installed with the mixing barrel 2, the outer wall of the left end of the mixing barrel 2 is connected with the feeding pipe 3 through the "U" shaped connecting frame 31, the feeding pipe 3 is hollow conical structure, the mixing barrel 2 is provided with the first screening frame 21 and the second screening frame 22 with different diameters, the feeding pipe 3 communicates with the first screening frame 21, the feeding pipe 3 directly docks the first screening frame 21, the diameters of the two are matched, which facilitates the smooth introduction of raw materials, the second screening frame 22 is arranged outside the first screening frame 21, the rotating rod 5 is rotatably connected in the mixing barrel 2, the rotating rod 5 coincides with the connecting line of the center of the longitudinal section of the first screening frame 21, the rotating rod 5 is installed with the first stirring blade 51, the first stirring blade 51 is arranged in the first screening frame 21, one end of the rotating rod 5 is connected with the connecting plate 52, the connecting plate 52 is connected with the second stirring blade 53, the second stirring blade 53 is arranged between the first screening frame 21 and the second screening frame 22, the first stirring blade 51 and the second stirring blade 53 are both spiral structure, this arrangement can mix the raw materials while conveying the raw materials, the mixing barrel 2 is provided with a mixing assembly for stirring and mixing the screened raw materials, the mixing barrel 2 is provided with a power assembly for driving the rotating rod 5 to rotate.

[0023] As shown in Figure 1 , the power assembly includes a motor 4 and a first pulley set 41, the motor 4 is installed on the top of the mixing barrel 2, the motor 4 is a bidirectional motor, a first pulley set 41 is arranged between the output shaft of the motor 4 and the rotating rod 5 for transmitting power of the motor 4 to the rotating rod 5, the first pulley set 41 includes a pulley installed on the output shaft of the motor 4, a pulley installed on the rotating rod and a flat belt between the two pulleys, the power of the motor 4 is transmitted to the rotating rod 5 through the first pulley set 41, so as to drive the rotating rod 5 to rotate.

[0024] As shown in Figure 2 and Figure 3 , the mixing assembly includes a second pulley set 6 and a stirrer 61, the stirrer 61 is arranged between the second screening frame 22 and the inner wall of the mixing barrel 2, the stirrer 61 is arranged at the lower part of the inner side of the mixing barrel 2, the two ends of the stirrer 61 are rotatably connected with the left and right ends of the mixing barrel 2, the second pulley set 6 is arranged between the stirrer 61 and the rotating rod 5, the rotating rod 5 drives the stirrer 61 to stir the raw materials in the mixing barrel 2 through the second pulley set 6, so as to realize the stirring and mixing of the screened raw materials.

[0025] As shown in Figure 1 and Figure 5As shown, it also comprises a first discharge baffle 9, a pull plate 91 and a guide block 92, the bottom of the mixing cylinder 2 is rotationally connected with the first discharge baffle 9, the bottom of the mixing cylinder 2 is provided with a transverse discharge port, the first discharge baffle 9 is used for blocking the transverse discharge port, the bottom of the mixing cylinder 2 is symmetrically provided with the guide block 92, the pull plate 91 is slidably connected to the guide block 92, and the pull plate 91 is used for limiting and fixing the first discharge baffle 9.

[0026] In use, the raw materials are added into the first screening frame 21 through the feeding pipe 3, the motor 4 drives the rotating rod 5 to rotate through the first belt pulley set 41, the rotating rod 5 drives the first stirring blade 51 and the second stirring blade 53 to rotate, the first stirring blade 51 stirs the raw materials entering the first screening frame 21, the particles with a volume greater than the mesh of the first screening frame 21 are blocked in the first screening frame 21, and the particles with a volume smaller than the mesh of the first screening frame 21 fall into the second screening frame 22, so that the raw materials are initially screened; the raw material particles falling into the second screening frame 22 are stirred by the second stirring blade 53, the particles with a volume smaller than the mesh of the second screening frame 22 fall into the mixing cylinder 2 from the second screening frame 22, so that the raw materials are secondarily screened; the rotating rod 5 drives the stirrer 61 to rotate through the second belt pulley set 6, the stirrer 61 fully mixes the various raw materials after the secondary screening, the pull plate 91 is pulled upward along the guide block 92 after the raw materials are fully mixed, so that the limiting effect of the first discharge baffle 9 is released, the first discharge baffle 9 rotates downward around the connection between the first discharge baffle 9 and the mixing cylinder 2 under the action of gravity, and the raw materials in the mixing cylinder 2 are discharged from the mixing cylinder 2 through the discharge port at the bottom of the mixing cylinder 2, so that the raw materials after the mixing are efficiently discharged.

[0027] As shown in Figure 1 and Figure 4 , it also comprises a second discharge baffle 7, a limiting slide plate 71, a spring 72 and a limiting plate 8, the left and right ends of the mixing cylinder 2 are both provided with a circular notch, the left and right ends of the mixing cylinder 2 are both provided with a guide plate 23, the diameter of the notch at the left end of the mixing cylinder 2 is consistent with the diameter of the second screening frame 22, and the notch is detachably provided with the second discharge baffle 7, the diameter of the second discharge baffle 7 is consistent with the diameter of the second screening frame 22, the second discharge baffle 7 is symmetrically provided with two limiting slide plates 71, the limiting slide plates 71 are slidably connected with the connecting frame 31, the spring 72 is arranged between the limiting slide plates 71 and the outer wall of the mixing cylinder 2, the spring 72 is arranged around the connecting frame 31, the spring 72 is compressed when the second discharge baffle 7 blocks the notch at the left end of the mixing cylinder 2, and the outer wall of the left end of the mixing cylinder 2 is rotationally provided with the arc-shaped limiting plate 8 for limiting the second discharge baffle 7.

[0028] As shown in Figure 5 and Figure 6Also shown, further comprising a third discharge baffle 73, a limiting slide plate two 731, a guide rod 74, a spring two 75 and a limiting plate two 81, the right end of the mixing cylinder 2 is provided with a circular notch with the same diameter as the first screening frame 21, and the circular notch is provided with a third discharge baffle 73 in a detachable manner, the diameter of the third discharge baffle 73 is consistent with the diameter of the first screening frame 21, two limiting slide plates two 731 are symmetrically arranged on the third discharge baffle 73, the limiting slide plate two 731 is slidably connected with the guide rod 74 arranged on the outer wall of the mixing cylinder 2, the limiting slide plate two 731 and the outer wall of the mixing cylinder 2 are provided with a spring two 75, and the spring two 75 is arranged around the guide rod 74, when the third discharge baffle 73 blocks the notch at the right end of the mixing cylinder 2, the spring two 75 is in a compressed state, and the limiting plate two 81 is rotatably arranged on the right outer wall of the mixing cylinder 2 and used for limiting the third discharge baffle 73.

[0029] When it is necessary to unload the raw materials in the first screening frame 21 and the second screening frame 22, the motor 4 drives the first stirring blade 51 and the second stirring blade 53 to rotate in the forward direction through the first belt pulley set 41, the first stirring blade 51 rotates to feed the raw materials in the first screening frame 21 from left to right, and the limiting plate two 81 rotates upward, after the limiting plate two 81 rotates away from the third discharge baffle 73, the spring two 75 resets, thereby pushing the limiting slide plate two 731 to move along the guide rod 74 away from the mixing cylinder 2, the third discharge baffle 73 moves away from the mixing cylinder 2, thereby removing the blockage of the third discharge baffle 73 to the discharge port on the right side of the mixing cylinder 2, and the raw materials in the first screening frame 21 are unloaded through the discharge port on the right side of the mixing cylinder 2 under the action of the rotation of the first stirring blade 51; similarly, the limiting plate one 8 rotates away from the second discharge baffle 7, thereby removing the limiting of the second discharge baffle 7, the second discharge baffle 7 slides along the connecting frame 31 away from the mixing cylinder 2 through the limiting slide plate one 71, thereby removing the blockage of the second discharge baffle 7 to the discharge port on the left side of the mixing cylinder 2, the second stirring blade 53 is driven to rotate in the reverse direction through the reverse rotation of the motor 4, thereby conveying the raw materials in the second screening frame 22 from right to left, and unloading the raw materials through the discharge port on the left side of the mixing cylinder 2; in this way, the raw materials in the first screening frame 21 and the second screening frame 22 are efficiently unloaded.

[0030] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A raw material mixing and screening device for producing magnesia carbon bricks, comprising a base (1), a mixing cylinder (2), a feeding pipe (3) and a connecting frame (31), wherein the mixing cylinder (2) is mounted on the base (1), and the feeding pipe (3) is connected to the outer wall of one end of the mixing cylinder (2) through the connecting frame (31), characterized in that: The mixing drum (2) further comprises a first screening frame (21), a second screening frame (22), a rotating rod (5), a first stirring blade (51), a connecting plate (52), a second stirring blade (53), a power assembly and a mixing assembly. The mixing drum (2) is provided with a first screening frame (21) and a second screening frame (22) of different diameters. The feeding pipe (3) is connected to the first screening frame (21). The second screening frame (22) is provided outside the first screening frame (21). The mixing drum (2) is rotatably connected with a rotating rod (5). The rotating rod (5) 5) is provided with a first stirring blade (51), the first stirring blade (51) is provided in the first screening frame (21), one end of the rotating rod (5) is connected to a connecting plate (52), the connecting plate (52) is connected to a second stirring blade (53), the second stirring blade (53) is provided between the first screening frame (21) and the second screening frame (22), a mixing assembly for stirring and mixing the screened raw materials is provided in the mixing barrel (2), and a power assembly for driving the rotating rod (5) to rotate is provided on the mixing barrel (2).

2. A raw material mixing and screening device for producing magnesia carbon bricks according to claim 1, characterized in that: The inner diameter of the first screening frame (21) is adapted to the maximum opening of the feeding tube (3).

3. The raw material mixing and screening device for producing magnesia carbon bricks according to claim 1, characterized in that: The power assembly comprises a motor (4) and a first pulley group (41). The motor (4) is mounted on the top of the mixing drum (2). The first pulley group (41) for transmitting the power of the motor (4) to the rotating rod (5) is provided between the output shaft of the motor (4) and the rotating rod (5).

4. A raw material mixing and screening device for producing magnesia carbon bricks according to claim 1, characterized in that: The mixing assembly comprises a second pulley group (6) and an agitator (61). The agitator (61) is arranged between the second screening frame (22) and the inner wall of the mixing barrel (2). The agitator (61) is rotatably connected to the inner walls of both ends of the mixing barrel (2). The second pulley group (6) is arranged between the agitator (61) and the rotating rod (5).

5. The raw material mixing and screening device for producing magnesia carbon bricks according to claim 1, characterized in that: The mixing barrel (2) further comprises a second unloading baffle (7), a limiting slide plate (71), a spring (72) and a limiting plate (8). Circular notches are provided at both ends of the mixing barrel (2), wherein a second unloading baffle (7) is provided at the notch between the feeding pipe (3) and the mixing barrel (2), a limiting slide plate (71) is connected to the second unloading baffle (7), the limiting slide plate (71) is slidably connected to the connecting frame (31), a spring (72) is provided between the limiting slide plate (71) and the outer wall of the mixing barrel (2), the spring (72) is wound around the connecting frame (31), and a limiting plate (8) for limiting the second unloading baffle (7) is also rotatably provided on the outer wall of the mixing barrel (2).

6. A raw material mixing and screening device for producing magnesia carbon bricks according to claim 5, characterized in that: The mixing barrel (2) further comprises a third unloading baffle (73), a second limiting slide plate (731), a guide rod (74), a second spring (75) and a second limiting plate (81). The other end of the mixing barrel (2) with a notch is provided with a third unloading baffle (73). The third unloading baffle (73) is connected to the second limiting slide plate (731) on the upper side. The second limiting slide plate (731) is slidably connected to the guide rod (74) provided on the outer wall of the mixing barrel (2). A second spring (75) is provided between the second limiting slide plate (731) and the outer wall of the mixing barrel (2). The second spring (75) is wound around the guide rod (74). A second limiting plate (81) for limiting the third unloading baffle (73) is rotatably provided on the outer wall of the mixing barrel (2).

7. A raw material mixing and screening device for producing magnesia carbon bricks according to claim 1, characterized in that: The mixing drum (2) further comprises a first unloading baffle (9), a pull plate (91) and a guide block (92); the first unloading baffle (9) is rotatably connected to the bottom of the mixing drum (2); the guide block (92) is symmetrically arranged at the bottom of the mixing drum (2); the pull plate (91) is slidably connected to the guide block (92); the pull plate (91) is used to limit and fix the first unloading baffle (9).

8. The raw material mixing and screening device for producing magnesia carbon bricks according to claim 1, characterized in that: Guide plates (23) are provided at the lower parts of both ends of the mixing cylinder (2).

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