Feeding device for white corundum production

Abstract

The utility model discloses a feeding device for white corundum production, which comprises an outer cylinder, a protective cylinder fixed at the lower end of the outer cylinder, a feeding hopper fixed at the upper end of the outer cylinder, a feeding pipe fixed on the outer wall of the outer cylinder, an inner cylinder arranged on the inner wall of the outer cylinder, a certain gap between the outer cylinder and the inner cylinder, and a first fixing ring and a second fixing ring arranged in the gap, a plurality of air inlets are formed in the inner wall of the inner cylinder; a bottom plate is fixed at the lower end of the inner cylinder; a reverser is fixed at the upper end of the bottom plate; the reverser is rotationally connected with a connecting rod and a rotating shaft; through cooperative use of a connecting rod and a stirring rod, the situation that the white corundum raw materials are stacked in the inner cylinder and cannot be normally fed is prevented, and through cooperation of a servo motor and an impeller, wind power is generated, and it is facilitated that the white corundum raw materials are prevented from floating when the white corundum raw materials are poured in.

Description

Technical Field

[0001] The utility model relates to the technical field of white corundum production, in particular to a feeding device used for white corundum production. Background Art

[0002] White corundum is a kind of artificial abrasive. It uses industrial alumina powder as raw material. It is made by electric melting in an electric arc at a high temperature of more than 2000 degrees and then cooled. It is crushed and shaped, magnetically separated to remove iron, and sieved into various particle sizes. It has a dense texture, high hardness, and sharp-angled particles. It is suitable for the manufacture of ceramics, resin-bonded abrasives, as well as grinding, polishing, sandblasting, precision casting, etc. It can also be used to manufacture advanced refractory materials.

[0003] At present, the production of white corundum by electric melting is carried out in an electric arc furnace. The alumina powder raw material needs to be fed into the electric arc furnace, and the commonly used feeding equipment is mostly a screw conveyor. However, during the actual feeding operation, the following problems will be encountered:

[0004] 1. When the white corundum raw materials are piled up inside the screw conveyor, a cavity will appear in the white corundum raw materials at the position where the screw conveyor is conveying, causing the white corundum to be unable to fall, making it impossible for the screw conveyor to continue to convey the white corundum raw materials.

[0005] 2. When the white corundum raw materials are poured into the screw conveyor for transportation, part of the white corundum raw materials will be lifted up, causing dust. The operators will inhale the dust, which will affect their health. Utility Model Content

[0006] The utility model aims to provide a feeding device for white corundum production, which solves the above-mentioned problems in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding device for white corundum production, comprising an outer cylinder, a protective cylinder is fixed at the lower end of the outer cylinder, a feeding hopper is fixed at the upper end of the outer cylinder, a feeding pipe is fixed to the outer wall of the outer cylinder, an inner cylinder is provided on the inner wall of the outer cylinder, a certain gap is provided between the outer cylinder and the inner cylinder, a first fixing ring and a second fixing ring distributed up and down are provided in the gap, and a fixing plate is fixed to the lower end of the protective cylinder;

[0008] The inner wall of the inner cylinder is provided with a plurality of air inlets, a bottom plate is fixed to the lower end of the inner cylinder, a commutator is fixed to the upper end of the bottom plate, the commutator is rotatably connected to a connecting rod and a rotating shaft, a plurality of stirring rods are fixed to the connecting rod, a spiral blade is fixed to the outer wall of the rotating shaft, and a support frame is rotatably connected to the upper end of the connecting rod;

[0009] A servo motor is fixed to the upper end of the fixed plate, an impeller is rotatably connected to the upper end of the servo motor, a reducer is provided at the upper end of the impeller, and the reducer is fixed to the lower end of the bottom plate.

[0010] Preferably, the feeding pipe passes through the gap between the outer cylinder and the inner cylinder and is communicated with the inner cylinder.

[0011] Preferably, the first fixing ring is located below the air inlet, the first fixing ring is fixedly connected to the inner wall of the outer cylinder and the outer wall of the inner cylinder, a filter element is laid on the upper end of the first fixing ring, and the second fixing ring is located at the lower end of the inner cylinder, the second fixing ring is fixedly connected to the inner wall of the outer cylinder and the outer wall of the inner cylinder, and a plurality of through holes are provided on the first fixing ring and the second fixing ring.

[0012] Preferably, the upper output end of the commutator is fixedly connected to the connecting rod through a coupling, the output ends on the left and right sides of the commutator are connected to the rotating shaft through a coupling, and the rotating shaft is rotatably connected to the inner wall of the inner cylinder through a bearing.

[0013] Preferably, a plurality of stirring rods are fixed on the connecting rod from top to bottom, and the plurality of stirring rods are fixed on the connecting rod in a spiral shape.

[0014] Preferably, the output end of the servo motor is fixedly connected to the impeller, the impeller is connected to the input end of the reducer through a coupling, and the output end of the reducer is connected to the connecting rod through a coupling.

[0015] Preferably, the lower end of the support frame is rotatably connected to the connecting rod, and the support frame is fixedly connected to the inner cylinder.

[0016] Preferably, the cross section of the feed hopper is a special-shaped U-shape, and the lower end of the feed hopper is fixedly connected to the upper ends of the outer cylinder and the inner cylinder respectively.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The connecting rod is used in conjunction with the stirring rod to prevent the white corundum raw materials from accumulating inside the inner cylinder, which makes it impossible to load the white corundum raw materials normally. Pouring the white corundum raw materials through the feed hopper is conducive to the rapid entry of the white corundum raw materials into the inner cylinder. The connecting rod is limited by the support frame to prevent deformation caused by the limit position of one end of the connecting rod. At the same time, the support frame can effectively prevent people from falling into the inner cylinder and causing injuries.

[0019] 2. The servo motor and the impeller cooperate to generate wind force, which is conducive to sucking the raised white corundum raw materials into the filter element through the air inlet for filtration when pouring the white corundum raw materials, so as to prevent the white corundum raw materials from floating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a partial cross-sectional schematic diagram of the utility model;

[0022] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0023] Figure 4 It is a sectional overall schematic diagram of the utility model.

[0024] Explanations in the figure: 1. Outer cylinder; 2. Protective cylinder; 3. Feeding pipe; 4. Feed hopper; 5. Support frame; 6. Inner cylinder; 101. First fixing ring; 102. Filter element; 103. Second fixing ring; 201. Fixing plate; 202. Servo motor; 203. Impeller; 204. Reducer; 601. Bottom plate; 602. Commutator; 603. Connecting rod; 604. Stirring rod; 605. Rotating shaft; 606. Spiral blade; 607. Air inlet. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1 and Figure 2A feeding device for white corundum production comprises an outer cylinder 1, a protective cylinder 2 is fixed at the lower end of the outer cylinder 1, a feed hopper 4 is fixed at the upper end of the outer cylinder 1, and the feed hopper 4 is funnel-shaped as a whole, which is large at the top and small at the bottom, so that the white corundum raw material can quickly enter the inner cylinder 6, and the white corundum raw material is convenient for dumping. The cross section of the feed hopper 4 is a special-shaped U-shape, and the lower end of the feed hopper 4 is fixedly connected to the upper end of the outer cylinder 1 and the inner cylinder 6 respectively. The inner wall of the outer cylinder 1 is provided with Inner cylinder 6, there is a certain gap between the outer cylinder 1 and the inner cylinder 6, and a first fixing ring 101 and a second fixing ring 103 are arranged in the gap, and a plurality of through holes are opened on the first fixing ring 101 and the second fixing ring 103. By setting the cross section of the feed hopper 4 to a special U-shape, and the lower end of the feed hopper 4 is fixedly connected to the upper ends of the outer cylinder 1 and the inner cylinder 6 respectively, the outer cylinder 1 and the inner cylinder 6 form a seal, so that the outside air can only enter the outer cylinder from the air inlet 607 1 and the inner cylinder 6, by opening a plurality of through holes on the first fixing ring 101 and the second fixing ring 103, it is beneficial for air to flow in the gap between the outer cylinder 1 and the inner cylinder 6, the outer wall of the outer cylinder 1 is fixed with a feeding pipe 3, the feeding pipe 3 passes through the gap between the outer cylinder 1 and the inner cylinder 6 and communicates with the inner cylinder 6, the first fixing ring 101 is located below the air inlet 607, the first fixing ring 101 is fixedly connected to the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 6, the upper end of the first fixing ring 101 is paved with a filter element 102, to ensure that the dust raised when pouring white corundum can enter the gap between the outer cylinder 1 and the inner cylinder 6, and be filtered by the filter element 102, the second fixing ring 103 is located at the lower end of the inner cylinder 6, the second fixing ring 103 is fixedly connected to the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 6, the inner cylinder 6 is fixedly connected to the outer cylinder 1 by the first fixing ring 101 and the second fixing ring 103, and the firmness of the inner cylinder 6 is ensured;

[0029] See also Figure 3 and Figure 4The inner wall of the inner cylinder 6 is provided with a plurality of air inlets 607. The air inlets 607 are provided on the inner cylinder 6, so that the dust raised by the dumping of the white corundum raw material can be carried by air into the gap between the outer cylinder 1 and the inner cylinder 6 through the air inlets 607. A bottom plate 601 is fixed at the lower end of the inner cylinder 6, a commutator 602 is fixed at the upper end of the bottom plate 601, the commutator 602 is rotatably connected with a connecting rod 603 and a rotating shaft 605, a plurality of stirring rods 604 are fixed on the connecting rod 603, and the The outer wall of the rotating shaft 605 is fixed with a spiral blade 606, which is driven by the connecting rod 603 to rotate the stirring rod 604 to prevent the white corundum raw material from accumulating inside the inner cylinder 6 and being unable to fall, which further causes the white corundum raw material to be unable to be normally loaded. The rotating shaft 605 drives the spiral blade 606 to rotate, which is conducive to discharging the white corundum raw material inside the inner cylinder 6 and loading it for the next processing device. The upper end of the connecting rod 603 is rotatably connected to the support frame 5, and the lower end of the support frame 5 is rotatably connected to the connecting rod 603. The support frame 5 is fixedly connected to the inner cylinder 6. The rotational connection between the support frame 5 and the connecting rod 603 is conducive to limiting the connecting rod 603, preventing one end of the connecting rod 603 from being unlimited, and preventing the connecting rod 603 from being deformed during operation. At the same time, the support frame 5 is fixed to the upper end of the inner cylinder 6 to prevent the staff from slipping into the inner cylinder 6 and causing injuries to the operator. The upper output end of the commutator 602 is fixedly connected to the connecting rod 603 through a coupling. Then, the output ends on the left and right sides of the commutator 602 are connected to the rotating shaft 605 through a coupling, and the rotating shaft 605 is rotatably connected to the inner wall of the inner cylinder 6 through a bearing. A plurality of stirring rods 604 are fixed on the connecting rod 603 from top to bottom, and the plurality of stirring rods 604 are spirally fixed on the connecting rod 603. By spirally fixing the stirring rods 604 on the connecting rod 603, it is beneficial to stir the white corundum raw material inside the inner cylinder 6, and prevent the white corundum raw material from piling up and being unable to fall.

[0030] See also Figure 2A fixing plate 201 is fixed to the lower end of the protective cylinder 2. A fan-shaped slot is provided on the fixing plate 201 to ensure that the air in the gap between the outer cylinder 1 and the inner cylinder 6 can circulate. A servo motor 202 is fixed to the upper end of the fixing plate 201. The servo motor 202 provides power to ensure the normal operation of the device and to feed the next processing device. The upper end of the servo motor 202 is rotatably connected to an impeller 203. The impeller 203 rotates rapidly to generate suction and ensure the air flow inside the protective cylinder 2. A reducer 204 is provided at the upper end of the impeller 203, and the reducer 204 is fixed at the lower end of the base plate 601. The output end of the servo motor 202 is fixedly connected to the impeller 203, and the impeller 203 is connected to the input end of the reducer 204 through a coupling. The output end of the reducer 204 is connected to the connecting rod 603 through a coupling. The speed reduction through the reducer 204 is beneficial to reducing the speed of the servo motor 202 while increasing the output torque, thereby ensuring the rotation of the connecting rod 603 and the rotating shaft 605.

[0031] When the utility model is used:

[0032] First, the filter element 102 is laid. After completion, the feed hopper 4 is fixed to the upper ends of the outer cylinder 1 and the inner cylinder 6, and the servo motor 202 is powered on. The servo motor 202 drives the impeller 203 to rotate. The impeller 203 rotates to generate suction, and the air in the gap between the outer cylinder 1 and the inner cylinder 6 is sucked out and discharged from the notch of the fixed plate 201. The outside air enters the gap between the outer cylinder 1 and the inner cylinder 6 from the air inlet 607, and enters the interior of the protective cylinder 2 through the filter element 102, the first fixed ring 101, and the second fixed ring 103 in turn. The rotation of the impeller 203 drives the reducer 204 to work. The reducer 204 reduces the speed while increasing the output torque. The reducer 204 drives the commutator 602 to rotate, and the commutator 602 drives the connecting rod 603 and the rotating shaft 605 to rotate;

[0033] Then, the white corundum raw material is poured into the inner cylinder 6. During the pouring process, a small part of the raw material will be lifted up. The lifted raw material will be sucked into the gap between the outer cylinder 1 and the inner cylinder 6 through the air inlet 607, and then filtered through the filter element 102 to filter out the raw material. The filtered air will be discharged from the fixed plate 201 through the first fixed ring 101 and the second fixed ring 103.

[0034] Next, the white corundum raw material inside the inner cylinder 6 is discharged through the feeding pipe 3 by the rotation of the spiral blade 606, and is fed to the next processing device. While the spiral blade 606 is feeding, the white corundum raw material inside the inner cylinder 6 will have a cavity due to accumulation, resulting in the inability to feed the white corundum raw material normally. At this time, the connecting rod 603 drives the stirring rod 604 to rotate, stirs the accumulated white corundum raw material, and prevents the white corundum raw material from accumulating;

[0035] Finally, when the use is finished, it is only necessary to turn off the power to the servo motor 202.

[0036] Although the 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 feeding device for white corundum production, characterized in that: It comprises an outer cylinder (1), a protective cylinder (2) is fixed at the lower end of the outer cylinder (1), a feed hopper (4) is fixed at the upper end of the outer cylinder (1), a feeding pipe (3) is fixed to the outer wall of the outer cylinder (1), an inner cylinder (6) is provided on the inner wall of the outer cylinder (1), a certain gap is provided between the outer cylinder (1) and the inner cylinder (6), a first fixing ring (101) and a second fixing ring (103) are provided in the gap and are distributed up and down, and a fixing plate (201) is fixed to the lower end of the protective cylinder (2); The inner wall of the inner cylinder (6) is provided with a plurality of air inlets (607); a bottom plate (601) is fixed at the lower end of the inner cylinder (6); a commutator (602) is fixed at the upper end of the bottom plate (601); the commutator (602) is rotatably connected to a connecting rod (603) and a rotating shaft (605); a plurality of stirring rods (604) are fixed to the connecting rod (603); a spiral blade (606) is fixed to the outer wall of the rotating shaft (605); and the upper end of the connecting rod (603) is rotatably connected to a support frame (5); A servo motor (202) is fixed to the upper end of the fixed plate (201), an impeller (203) is rotatably connected to the upper end of the servo motor (202), a reducer (204) is provided at the upper end of the impeller (203), and the reducer (204) is fixed to the lower end of the bottom plate (601).

2. A feeding device for white corundum production according to claim 1, characterized in that: The feeding pipe (3) passes through the gap between the outer cylinder (1) and the inner cylinder (6) and is in communication with the inner cylinder (6).

3. A feeding device for white corundum production according to claim 1, characterized in that: The first fixing ring (101) is located below the air inlet (607), the first fixing ring (101) is fixedly connected to the inner wall of the outer cylinder (1) and the outer wall of the inner cylinder (6), a filter element (102) is provided at the upper end of the first fixing ring (101), the second fixing ring (103) is located at the lower end of the inner cylinder (6), the second fixing ring (103) is fixedly connected to the inner wall of the outer cylinder (1) and the outer wall of the inner cylinder (6), and a plurality of through holes are provided on the first fixing ring (101) and the second fixing ring (103).

4. A feeding device for white corundum production according to claim 1, characterized in that: The upper output end of the commutator (602) is fixedly connected to the connecting rod (603) via a coupling, and the output ends on the left and right sides of the commutator (602) are connected to the rotating shaft (605) via a coupling. The rotating shaft (605) is rotatably connected to the inner wall of the inner cylinder (6) via a bearing.

5. The feeding device for white corundum production according to claim 1, characterized in that: A plurality of stirring rods (604) are fixed on the connecting rod (603) from top to bottom, and the plurality of stirring rods (604) are fixed on the connecting rod (603) in a spiral shape.

6. A feeding device for white corundum production according to claim 1, characterized in that: The output end of the servo motor (202) is fixedly connected to the impeller (203), the impeller (203) is connected to the input end of the reducer (204) via a coupling, and the output end of the reducer (204) is connected to the connecting rod (603) via a coupling.

7. A feeding device for white corundum production according to claim 1, characterized in that: The lower end of the support frame (5) is rotatably connected to the connecting rod (603), and the support frame (5) is fixedly connected to the inner cylinder (6).

8. The feeding device for white corundum production according to claim 1, characterized in that: The cross section of the feed hopper (4) is a special-shaped U-shape, and the lower end of the feed hopper (4) is fixedly connected to the upper ends of the outer cylinder (1) and the inner cylinder (6) respectively.

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