An improved lead pump for lead liquid transportation

Abstract

The invention discloses an improved lead pump for conveying liquid lead, comprising a lead pump main body, an outer surface of the lead pump main body fixedly connected to a discharge pipe, a conveying pipe fixed to and connected to the discharge pipe via a connecting flange; a connecting box fixedly mounted on the outer surface of the discharge pipe, an inner wall of the connecting box fixedly mounted with a sliding rod, two movable frames having holes opened at one end and capable of being inserted into the sliding rod, the other ends of the two movable frames also having holes opened and provided with internal threads, the other ends of the two movable frames being capable of being inserted into a bidirectional ball screw and cooperating with the external threads of the bidirectional ball screw, the two movable frames being T-shaped and having a sealing sleeve fixedly connected to the middle thereof; the improved lead pump for conveying liquid lead, by arranging the connecting box, the bidirectional ball screw, the movable frame and the sealing sleeve, achieves the purpose of sealing the connection of the connecting flange.

Description

Technical Field

[0001] The invention belongs to the technical field of lead smelting equipment, and in particular relates to an improved lead pump for transporting molten lead. Background Art

[0002] In the lead smelting and lead electrolysis production processes, lead pumps are indispensable equipment. The main working principle of the lead pump is to use power to drive the transmission shaft to rotate, thereby driving the impeller fixed on the transmission shaft to generate centrifugal force, sucking the molten lead liquid into the pump casing, and then transporting the lead liquid to the ingot mold through the lead pipe to cool it and form a lead ingot.

[0003] The existing patent with authorization announcement number CN209557268U discloses a high-temperature and high-lift lead pump, including a motor, an upper shaft, a pump shaft and a support frame. The motor is connected to the upper shaft through a motor coupling. A bearing box is provided in the middle of the upper shaft to fix the upper shaft. The bearing box is fixed in the motor support. The upper shaft is connected to the pump shaft through a pump shaft coupling. The lower end of the pump shaft is connected to the impeller with a flat key. The lower end of the support frame is equipped with a pump casing and a shower head. A supporting shaft sleeve and a sliding shaft sleeve are also provided between the support frame and the pump shaft. A lead outlet pipe is connected to one side of the pump casing.

[0004] By adopting the above technical solution, the pump shaft is connected to the upper shaft and bearing box through the pump shaft coupling, which is more conducive to the replacement and maintenance of high-temperature parts such as the pump shaft and the protection of the upper parts. The support frame is provided with a supporting sleeve to prevent the pump shaft from deforming easily in a high-temperature environment, and has the characteristics of easy maintenance and high temperature resistance. However, in the above technical solution, the pump body and the conveying pipeline are connected by a flange, which makes it easy for lead liquid to leak at the flange, thereby causing waste of lead liquid and reducing the practicality of the device.

[0005] To this end, we propose an improved lead pump for lead liquid transportation to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem in the prior art that lead liquid is prone to leakage at the flange, and to propose an improved lead pump for transporting lead liquid.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An improved lead pump for lead liquid transportation, comprising a lead pump body 1, a rotating motor 10 is provided above the lead pump body 1, a pump housing 12 is fixedly mounted on the inner wall of the lead pump body 1, the top end of the pump shaft 11 passes through the lead pump body 1 and is fixedly connected to the power output end of the rotating motor 10, the bottom end of the pump shaft 11 passes through the pump housing 12 and an impeller 13 is fixedly mounted at the bottom end; a discharge pipe 2 is fixedly connected to the outer surface of the lead pump body 1, a delivery pipe 4 is fixed and connected to the discharge pipe 2 through a connecting flange 5; a connection box 3 is fixedly mounted on the outer surface of the discharge pipe 2, and a connection box 3 is fixedly mounted on the outer surface of the discharge pipe 2. A slide rod 19 is fixedly installed on the inner wall of the box 3. One end of the two movable frames 7 has a hole and can be inserted into the slide rod 19. The other end of the two movable frames 7 also has a hole and is provided with an internal thread. This end can be inserted into the bidirectional ball screw 6 and cooperate with the external thread of the bidirectional ball screw 6. The two movable frames 7 are T-shaped and the middle part is fixedly connected to the sealing sleeve 8; the outer surface of the bidirectional ball screw 6 is provided with two external threads in opposite directions, and one end of the bidirectional ball screw 6 passes through the connecting box 3. Rotating the bidirectional ball screw 6 can realize the sealing connection flange 5 of the two sealing sleeves 8 through the two movable frames 7.

[0009] Furthermore, the connection box 3 is open at one end close to the delivery pipe 4 and the opening is provided with an internal thread. The sealing cover 9 is hollow and can be inserted into the delivery pipe 4. The sealing cover 9 is provided with an external thread and can be screwed into the connection box 3 and sealed.

[0010] Furthermore, the bidirectional ball screw 6 passes through one end of the connection box 3 and is fixedly connected to the connection column 17 .

[0011] Furthermore, a pull ring 18 is provided on the connecting column 17 .

[0012] Furthermore, a shower head 21 is fixedly mounted on the inner wall of the end portion of the lead pump body 1 , and a plurality of feed holes 22 are provided on the shower head 21 .

[0013] Furthermore, the feed holes 22 are arranged at equal distances.

[0014] Furthermore, two support frames 14 are fixedly mounted on the outer surface of the rotating motor 10 , and one end of the two support frames 14 away from the rotating motor 10 is fixedly connected to the outer surface of the lead pump body 1 .

[0015] Furthermore, a support plate 15 is fixedly mounted on the outer surface of the lead pump body 1 . The support plate 15 is provided with a plurality of threaded holes, which can be fixed by fixing bolts 16 .

[0016] Furthermore, a connecting bearing 20 is fixedly mounted on the outer surface of the pump shaft 11 , and the outer surface of the connecting bearing 20 is fixedly connected to the inner wall of the lead pump body 1 .

[0017] In summary, the technical effects and advantages of the present invention are as follows:

[0018] 1. By providing a discharge pipe, a conveying pipe and a connecting flange, the purpose of facilitating the fixed connection between the discharge pipe and the conveying pipe is achieved;

[0019] 2. By setting up a connection box, a bidirectional ball screw, a movable frame and a sealing sleeve, the bidirectional ball screw is used to drive the two movable frames to move toward each other, so that the sealing sleeve is closely attached to the outer surface of the connection flange, thereby achieving the purpose of sealing the connection of the connection flange, thereby minimizing the phenomenon of lead liquid flowing out of the connection of the connection flange and reducing the waste of lead liquid;

[0020] 3. The sealing cover is provided to achieve the purpose of sealing the connection box, thereby further ensuring the sealing of the connection flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the lead pump body of the present invention;

[0022] Figure 2 This is a schematic structural diagram of a three-dimensional cross-sectional view of the connection box of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the connecting flange of the present invention;

[0024] Figure 4 It is a cross-sectional schematic diagram of the mobile frame of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the three-dimensional bearing connection of the present invention.

[0026] In the figure: 1. Lead pump body; 2. Discharge pipe; 3. Connecting box; 4. Delivery pipe; 5. Connecting flange; 6. Bidirectional ball screw; 7. Moving frame; 8. Sealing sleeve; 9. Sealing cover; 10. Rotating motor; 11. Pump shaft; 12. Pump casing; 13. Impeller; 14. Support frame; 15. Support plate; 16. Fixing bolt; 17. Connecting column; 18. Pull ring; 19. Sliding rod; 20. Connecting bearing; 21. Shower head; 22. Feed hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Example 1

[0029] Reference Figure 1-5An improved lead pump for lead liquid transportation includes a lead pump body 1, a rotating motor 10 is arranged above the lead pump body 1, a pump housing 12 is fixedly installed on the inner wall of the lead pump body 1, the top of the pump shaft 11 passes through the lead pump body 1 and is fixedly connected to the power output end of the rotating motor 10, the bottom end of the pump shaft 11 passes through the pump housing 12 and an impeller 13 is fixedly installed at the bottom end; the outer surface of the lead pump body 1 is fixedly connected to the discharge pipe 2, and the delivery pipe 4 is fixed and connected to the discharge pipe 2 through a connecting flange 5; the outer surface of the discharge pipe 2 is fixedly installed with a connection box 3, connecting A slide rod 19 is fixedly installed on the inner wall of the box 3. One end of the two movable frames 7 has a hole and can be inserted into the slide rod 19. The other end of the two movable frames 7 also has a hole and is provided with an internal thread. This end can be inserted into the bidirectional ball screw 6 and cooperate with the external thread of the bidirectional ball screw 6. The two movable frames 7 are T-shaped and the middle part is fixedly connected to the sealing sleeve 8; the outer surface of the bidirectional ball screw 6 is provided with two external threads in opposite directions, and one end of the bidirectional ball screw 6 passes through the connecting box 3. Rotating the bidirectional ball screw 6 can realize the sealing connection flange 5 of the two sealing sleeves 8 through the two movable frames 7.

[0030] By rotating the bidirectional ball screw, the two moving frames can be moved closer or farther away, thereby achieving closed sealing or separation of the two sealing sleeves on the connecting flange.

[0031] The connection box 3 is open at one end close to the delivery pipe 4 and is provided with an internal thread at the opening. The sealing cover 9 is hollow and can be inserted into the delivery pipe 4. The sealing cover 9 is provided with an external thread and can be screwed into the connection box 3 and sealed.

[0032] The opening of the connection box can be used to connect the delivery pipe and tighten the connection flange. At the same time, by screwing in the sealing cover, the connection box can be sealed to achieve secondary sealing of the connection flange.

[0033] The bidirectional ball screw 6 passes through one end of the connection box 3 and is fixedly connected to a connecting column 17, which is provided with a pull ring 18. The connecting column and the pull ring make the operation of the bidirectional ball screw more labor-saving and simple.

[0034] A shower head 21 is fixedly mounted on the inner wall of the lead pump body 1. The shower head 21 is provided with a plurality of feed holes 22, which are arranged at equal distances from each other. The shower head and feed holes can filter particulate impurities in the lead liquid, thereby minimizing the impurities from entering the lead pump body.

[0035] Two support brackets 14 are fixedly mounted on the outer surface of the rotating motor 10. The ends of the two support brackets 14, which are remote from the rotating motor 10, are fixedly connected to the outer surface of the lead pump body 1. The installation of the support brackets serves to stabilize the rotating motor, thereby minimizing the rotation of the rotating motor during operation and ensuring the operating stability of the rotating motor.

[0036] A support plate 15 is fixedly mounted on the outer surface of the lead pump body 1 . The support plate 15 is provided with a plurality of threaded holes, which can be fixed by fixing bolts 16 .

[0037] A connecting bearing 20 is fixedly mounted on the outer surface of the pump shaft 11, and the outer surface of the connecting bearing 20 is fixedly connected to the inner wall of the lead pump body 1. The connecting bearing plays a role in stabilizing the pump shaft, thereby minimizing the shaking phenomenon of the pump shaft when rotating, thereby ensuring the stability of the pump shaft.

[0038] The operating principle of the present invention is as follows: First, insert the bottom end of the lead pump body into the lead liquid. Then, secure the support plate to the workstation using fixing bolts. Then, connect the delivery pipe and tighten the connecting flange. A pull ring is used to rotate the bidirectional ball screw, closing the sealing sleeve on the connecting flange. The sealing cover is then screwed in to seal the connection box. The motor is then activated, and the negative pressure generated by the rotating impeller forces the lead liquid through the feed hole and into the discharge pipe, completing the lead delivery process.

[0039] In the description of the present invention, it should 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" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An improved lead pump for transporting liquid lead, characterized in that: The lead pump includes a lead pump main body, a rotating motor is provided above the lead pump main body, a pump casing is fixedly installed on the inner wall of the lead pump main body, the top of the pump shaft penetrates the lead pump main body and is fixedly connected to the power output end of the rotating motor, the bottom end of the pump shaft penetrates the pump casing and an impeller is fixedly installed on the bottom end; the outer surface of the lead pump main body is fixedly connected with a discharge pipe, and the delivery pipe is fixed and connected with the discharge pipe through a connecting flange; the outer surface of the discharge pipe is fixedly installed with a connecting box, and a sliding rod is fixedly installed on the inner wall of the connecting box, one end of the two movable frames is opened and can be inserted into the sliding rod, the other end of the two movable frames is also opened and provided with an internal thread, and one end of the two movable frames with holes and internal threads can be inserted into a bidirectional ball screw and cooperate with the external thread of the bidirectional ball screw, the two movable frames are T-shaped and a sealing sleeve is fixedly connected in the middle; the outer surface of the bidirectional ball screw is opened with two external threads in opposite directions, and one end of the bidirectional ball screw passes through the connecting box, and rotating the bidirectional ball screw can realize the sealing connection flange of the two sealing sleeves through the two movable frames; The connection box is open at one end close to the delivery pipe and is provided with an internal thread at the opening. The sealing cover is hollow and can be inserted into the delivery pipe. The sealing cover is provided with an external thread and can be screwed into the connection box and sealed. A bidirectional ball screw passes through one end of the connection box and is fixedly connected to the connection column. A pull ring is provided on the connection column.

2. The improved lead pump for lead liquid transportation according to claim 1, characterized in that: A shower head is fixedly installed on the inner wall of the end portion of the lead pump body, and a plurality of feed holes are opened on the shower head.

3. The improved lead pump for lead liquid transportation according to claim 2, characterized in that: The feed holes are arranged at equal distances.

4. The improved lead pump for lead liquid transportation according to claim 1, characterized in that: Two support frames are fixedly installed on the outer surface of the rotating motor, and one end of the two support frames away from the rotating motor is fixedly connected to the outer surface of the lead pump body.

5. The improved lead pump for lead liquid transportation according to claim 1, characterized in that: A support plate is fixedly installed on the outer surface of the lead pump body. A plurality of threaded holes are opened on the support plate, and fixation can be achieved by fixing bolts.

6. The improved lead pump for lead liquid transportation according to claim 1, characterized in that: A connecting bearing is fixedly installed on the outer surface of the pump shaft, and the outer surface of the connecting bearing is fixedly connected to the inner wall of the lead pump body.

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