A protective slag base lifting device

Abstract

A protective slag material lifting device, relating to the field of protective slag production equipment, includes a screw conveyor mechanism and a material holding trough. The screw conveyor mechanism includes an outer cylinder, an inner rotating shaft, screw blades, and a drive motor. The material holding trough has a hemispherical arc groove, the inner wall of which is lined with an elastic pad, and the inner surface of the elastic pad is provided with a material holding layer. A cavity is provided in the center of the bottom surface of the material holding trough, and a vibrating motor is installed in the cavity. The lower end of the outer cylinder corresponds to the inner bottom surface of the material holding layer, and the top outer wall of the outer cylinder is provided with a discharge pipe. A support rod is connected between the middle outer wall of the outer cylinder and the material holding trough. The inner rotating shaft is a hollow tube shaft, with a driven wheel fixed to the upper end of the shaft, and a driving wheel fixed to the output shaft of the drive motor. A rotary vane vacuum pump is provided next to the outer cylinder, and the inlet pipe of the rotary vane vacuum pump is connected to the top of the inner rotating shaft through a rotary sealing joint. This lifting device can reduce the footprint and improve the completeness and applicability of material feeding.

Description

Technical Field

[0001] This invention relates to the field of protective slag production equipment, and in particular to a protective slag base material lifting device. Background Technology

[0002] As is generally known, protective slag is a material used in processes such as metal heating, smelting, and welding. It is mainly used to protect metal surfaces from the effects of oxygen, impurities, and other adverse environments, and has functions such as thermal insulation, anti-oxidation, impurity removal, and surface protection. The production process of protective slag includes raw material preparation, proportioning and mixing, processing and shaping, drying and curing, etc. The base material of protective slag is diverse, generally in granular form, and varies in size. During proportioning, the base material needs to be sent to a higher mixing tank through a lifting device for mixing.

[0003] Currently, commonly used lifting devices include screw conveyors, bucket elevators, and belt conveyors. For example, the Chinese invention patent with announcement number CN103862012A uses a bucket elevator for lifting and conveying base materials. However, bucket elevators are inconvenient for loading materials, cannot transport continuously, and generate a lot of dust during transportation, making them unsuitable. Traditional belt conveyors have limited inclination angles and occupy too much space, while traditional screw conveyors do not transport materials cleanly enough and are prone to material accumulation, especially for base materials with small particle sizes, and also require a certain amount of space. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art and solve the existing technical problems, the present invention discloses a protective slag base material lifting device, which can reduce the floor space and improve the completeness and applicability of feeding.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] A protective slag base material lifting device includes a screw conveyor mechanism and a material holding trough. The screw conveyor mechanism includes an outer cylinder, an inner rotating shaft, screw blades, and a drive motor for rotating the inner rotating shaft. The material holding trough has a hemispherical arc groove, the inner wall of which is lined with an elastic pad. A material holding layer is provided on the inner surface of the elastic pad. A cavity extending to the outer surface of the material holding layer is provided in the center of the lower bottom surface of the material holding trough, and a vibrating motor installed on the outer surface of the material holding layer is provided in the cavity. The lower end of the outer cylinder corresponds to the inner bottom surface of the material holding layer. The outer cylinder has a discharge pipe on its top outer wall, and a support rod is connected between the middle outer wall of the outer cylinder and the material holding trough. The inner rotating shaft is a hollow tube shaft, and the lower ends of the inner rotating shaft and the spiral blade extend out of the outer cylinder and are close to the material holding layer. The upper end of the inner rotating shaft rotates through the outer cylinder and is coaxially fixed with a driven wheel. The output shaft of the drive motor is coaxially fixed with a driving wheel that is connected to the driven wheel. A rotary vane vacuum pump is provided next to the outer cylinder, and the inlet pipe of the rotary vane vacuum pump is connected to the top of the inner rotating shaft through a rotary sealing joint.

[0007] Furthermore, the material holding tank is designed as a square, and each of the four corners of the bottom surface of the material holding tank is provided with a support leg.

[0008] Furthermore, a reinforcing sleeve is fitted onto the outer wall of the middle part of the outer cylinder, and multiple support rods are symmetrically arranged on both sides of the reinforcing sleeve.

[0009] Furthermore, a support frame is connected to the top outer wall of the outer cylinder, and the drive motor and the rotary vane vacuum pump are mounted on the support frame.

[0010] Furthermore, the outlet pipe of the rotary vane vacuum pump is connected to the inner end of the discharge pipe.

[0011] Furthermore, the elastic pad layer is made of rubber, and the material holding layer is made of steel.

[0012] By employing the technical solution described above, the present invention has the following beneficial effects:

[0013] The protective slag base material lifting device disclosed in this invention, compared with the traditional screw conveyor, does not require the machine body to have a certain inclination, thereby greatly reducing the footprint and adapting to more usage environments. By setting a vibrating motor, it can ensure that the base material in the trough, regardless of the amount, is evenly gathered in the center of the hemispherical arc groove, thus facilitating the lifting and transportation by the screw conveyor mechanism. For base materials with smaller particle size or those that the screw conveyor mechanism cannot lift, they can also be extracted and transported by a vane vacuum pump through the inner rotating shaft, thereby improving the applicability of feeding base materials of different particle sizes and the completeness of feeding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the implementation structure of the present invention.

[0015] In the diagram: 1. Material trough; 2. Elastic pad; 3. Material layer; 4. Support leg; 5. Vibration motor; 6. Spiral blade; 7. Inner shaft; 8. Outer cylinder; 9. Reinforcing sleeve; 10. Support frame; 11. Drive motor; 12. Drive wheel; 13. Driven wheel; 14. Rotary sealing joint; 15. Rotary vane vacuum pump; 16. Discharge pipe; 17. Support rod. Detailed Implementation

[0016] The technical solution of the present invention will now be described with reference to the accompanying drawings of the embodiments of the present invention. In the description, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicating directions or positional relationships, are only used to correspond to the accompanying drawings of the present invention for the purpose of facilitating the description of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation.

[0017] Combined with appendix Figure 1 The protective slag base material lifting device includes a screw conveyor mechanism and a material trough 1. The screw conveyor mechanism includes an outer cylinder 8, an inner rotating shaft 7, a screw blade 6, and a drive motor 11 that drives the inner rotating shaft 7 to rotate.

[0018] The material holding trough 1 is provided with a hemispherical arc groove. The hemispherical arc groove has a large material holding volume and facilitates the sliding of the base material towards the center. The inner wall of the hemispherical arc groove is lined with an elastic pad layer 2, and the inner surface of the elastic pad layer 2 is provided with a material holding layer 3. Depending on the needs, the elastic pad layer 2 is made of rubber to prevent hard contact between the material holding layer 3 and the material holding trough 1. The material holding layer 3 is made of steel to ensure sufficient material holding strength. In addition, the material holding trough 1 is a square shape, which makes the entire material holding trough 1 have a large base weight. To prevent tipping, the bottom of the material trough 1 is equipped with four support feet 4 at the four corners for stable support. Casters with brakes can also be installed at the bottom of the support feet 4 for easy movement and positioning. The bottom of the material trough 1 has a cavity in the center that extends to the outer surface of the material layer 3. A vibration motor 5 is installed in the cavity and mounted on the outer surface of the material layer 3. The vibration motor 5 drives the material layer 3 to vibrate, which ensures that the base material in the material trough 1, regardless of the amount, is evenly gathered in the center of the hemispherical arc groove, which facilitates complete lifting and conveying.

[0019] The lower end of the outer cylinder 8 corresponds to the inner bottom surface of the material holding layer 3. The top outer wall of the outer cylinder 8 is provided with a discharge pipe 16. The middle outer wall of the outer cylinder 8 is connected to the material holding trough 1 with a support rod 17. The outer cylinder 8 of the screw conveyor mechanism is fixed by the support rod 17. If necessary, a reinforcing sleeve 9 is fitted on the middle outer wall of the outer cylinder 8 to prevent the outer cylinder 8 from deforming. Multiple support rods 17 are symmetrically provided on both sides of the reinforcing sleeve 9 to prevent the outer cylinder 8 from tipping over.

[0020] The inner rotating shaft 7 is a hollow tube shaft, which can be used to transport base material. The lower ends of the inner rotating shaft 7 and the spiral blade 6 extend out of the outer cylinder 8 and are close to the material holding layer 3, which facilitates guiding the base material into the outer cylinder 8. The upper end of the inner rotating shaft 7 rotates through the outer cylinder 8 and is coaxially fixed with a driven wheel 13. The output shaft of the drive motor 11 is coaxially fixed with a driving wheel 12 that is connected to the driven wheel 13 for transmission. The drive motor 11 can control the rotation of the inner rotating shaft 7 through a pulley transmission from one side of the inner rotating shaft 7. A rotary vane vacuum pump 15 is provided next to the outer cylinder 8. The rotary vane vacuum pump 15 can be used to pump small particles of solid material. The inlet pipe of the rotary vane vacuum pump 15 is connected to the inner rotating shaft 7 through a rotary sealing joint 14. The top connection, the rotary sealing joint 14 is an existing component, connects the inner rotating shaft 7 and the inlet pipe of the rotary vane vacuum pump 15, and while conveying the base material, it can prevent the inlet pipe from rotating with the inner rotating shaft 7; as needed, the outlet pipe of the rotary vane vacuum pump 15 is connected to the inner end of the discharge pipe 16, and the outlet pipe of the rotary vane vacuum pump 15 has a blowing effect when discharging, which can completely blow away the base material remaining in the discharge pipe 16; in addition, the top outer wall of the outer cylinder 8 is connected to the support frame 10, and the drive motor 11 and the rotary vane vacuum pump 15 are mounted on the support frame 10. The drive motor 11 and the rotary vane vacuum pump 15 can be evenly set to ensure that the support frame 10 is stably connected to the outer cylinder 8.

[0021] By implementing the protective slag base material lifting device described in this invention, the lifting device can be placed next to the mixing tank, so that the discharge pipe 16 corresponds to the inlet of the mixing tank. Then, the base material is added into the hemispherical arc groove of the material holding tank 1. First, the drive motor 11 is started to drive the inner rotating shaft 7 and the spiral blade 6 to lift and convey the base material upward. At the same time, the vibration motor 5 can be started to regulate the base material. When the base material is almost at the bottom, the drive motor 11 is stopped, and the rotary vane vacuum pump 15 is started to lift and pump, thus cleanly completing the base material lifting.

[0022] The parts of this invention not described in detail are prior art. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims within this invention, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A protective slag base material lifting device, comprising a screw conveyor mechanism and a material holding trough (1), wherein the screw conveyor mechanism comprises an outer cylinder (8), an inner rotating shaft (7), a screw blade (6), and a drive motor (11) for driving the inner rotating shaft (7) to rotate, characterized in that: The material storage tank (1) is provided with a hemispherical arc groove. The inner wall of the hemispherical arc groove is covered with an elastic pad (2). The inner surface of the elastic pad (2) is provided with a material storage layer (3). The bottom surface of the material storage tank (1) is provided with a cavity that extends to the outer surface of the material storage layer (3). A vibration motor (5) installed on the outer surface of the material storage layer (3) is provided in the cavity. The lower end of the outer cylinder (8) corresponds to the inner bottom surface of the material storage layer (3). The top outer wall of the outer cylinder (8) is provided with a discharge pipe (16). The middle outer wall of the outer cylinder (8) is connected to the material storage tank (1) by a support. Rod (17); The inner rotating shaft (7) is a hollow tube shaft. The lower ends of the inner rotating shaft (7) and the spiral blade (6) extend out of the outer cylinder (8) and are close to the material layer (3). The upper shaft of the inner rotating shaft (7) rotates through the outer cylinder (8) and is coaxially fixed with a driven wheel (13). The output shaft of the drive motor (11) is coaxially fixed with a driving wheel (12) that is connected to the driven wheel (13). A rotary vane vacuum pump (15) is provided next to the outer cylinder (8). The inlet pipe of the rotary vane vacuum pump (15) is connected to the top end of the inner rotating shaft (7) through a rotary sealing joint (14).

2. The protective slag base material lifting device according to claim 1, characterized in that: The material holding tank (1) is a square body, and the bottom of the material holding tank (1) is provided with four corner supports (4).

3. The protective slag base material lifting device according to claim 1, characterized in that: The outer wall of the outer cylinder (8) is fitted with a reinforcing sleeve (9), and multiple support rods (17) are symmetrically arranged on both sides of the reinforcing sleeve (9).

4. The protective slag base material lifting device according to claim 1, characterized in that: The top outer wall of the outer cylinder (8) is connected to a support frame (10), and the drive motor (11) and the rotary vane vacuum pump (15) are mounted on the support frame (10).

5. The protective slag base material lifting device according to claim 1, characterized in that: The outlet pipe of the rotary vane vacuum pump (15) is connected to the inner end of the discharge pipe (16).

6. The protective slag base material lifting device according to claim 1, characterized in that: The elastic pad (2) is made of rubber, and the filling layer (3) is made of steel.

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