Lead shot granulation equipment

Abstract

The utility model discloses a lead granulation device, which relates to the field of battery technology, including a lead bar mold, and also including a lead bar pulling roller group and a lead bar rolling roller group sequentially arranged along the lead bar conveying direction. The lead bar mold is a three-dimensional rectangular shape and has a plurality of lead bar mold cavities evenly distributed in the width direction. The top of the lead bar mold is evenly distributed with a plurality of heating blocks and a plurality of water cooling pipes in the length direction. The heating blocks and the water cooling pipes are arranged alternately one by one. The lead bar mold cavities are arranged along the length direction of the lead bar mold and lead liquid inlet and lead bar outlet are formed at both ends. The utility model realizes the production of multiple lead granules, which greatly improves the granulation speed; at the same time, the utility model also realizes the full control of the temperature in the whole process of forming the lead liquid into the lead bar, thereby further improving the granulation speed while greatly improving the quality of the formed lead bar and even the final lead granulation.

Description

Technical Field

[0001] The utility model relates to the technical field of storage batteries, in particular to a lead shot granulating device. Background Art

[0002] Lead powder is a carrier for storing electrical energy in batteries. At present, the main method of manufacturing lead powder is to first make lead ingots into lead pellets by casting or cold cutting, and then add the lead pellets into a lead powder machine to make lead powder. In the above-mentioned lead powder manufacturing process, there are two ways to granulate lead pellets: one is to melt the lead ingots and then cast them into lead pellets. This method not only consumes a lot of energy, but also easily produces lead slag solid waste and lead smoke hazards; the second is to make lead pellets by cold cutting, that is, first squeeze the lead ingots into lead plates, or cut the lead ingots into sheets, and then press them into lead pellets with a roller die. The lead pellets made by this method are not uniform in size, and there is a problem that the roller die is prone to continuous extrusion and lead pellet adhesion after being used for a period of time. At the same time, the roller die often needs to be sprayed with a large amount of water for cooling when working. During cooling, the oil used for mold lubrication will be brought to the lead pellets, polluting the product and affecting the quality of the subsequent manufactured batteries.

[0003] The relevant research on lead pellet granulation equipment in the prior art, such as the lead powder production equipment of patent application CN202169373U, can be achieved by cooling the molten lead of the lead melting furnace into a lead bar mold (the last processing step of the lead ingot is to pour the molten lead of the lead melting furnace into the mold for cooling and forming, and the lead bar mold directly processes the molten lead of the lead melting furnace into lead bars), and a granulation device for cutting the lead bars into lead pellets. This avoids secondary pollution caused by the melting of lead ingots, solves the problems of lead pellet adhesion caused by the use of roller pressing molds to manufacture lead pellets, and the lead pellets being contaminated by oil used for mold lubrication, thereby saving energy consumption and reducing pollution to a certain extent.

[0004] However, most of the lead bar molds in the prior art are only equipped with lead liquid cooling components. For example, in the lead powder production equipment of patent application CN202169373U, the water jacket is only set on the outside of the cooling trough of the cooling mold serving as the lead bar mold. This makes the temperature of the lead liquid can only be maintained by its own original temperature. During the lead bar forming process, the lead liquid is easily solidified prematurely, which may block the lead bar mold and affect the granulation speed and quality. At the same time, most of the prior art can only produce lead pellets in a single strip. For example, in the lead powder production equipment of patent application CN202169373U, the cooling mold serving as the lead bar mold is only provided with a lead liquid inlet and a lead bar outlet, which further affects the granulation speed.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide a lead pellet granulation device to solve the technical problems that in the lead bar forming process of the prior art proposed in the above background technology, the lead liquid is easily solidified prematurely, which causes the lead bar mold to be blocked, affecting the granulation speed and granulation quality, and most of the prior art can only produce lead pellets in a single strip, resulting in the granulation speed being further affected.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A lead pellet granulation device comprises a lead bar mold in a three-dimensional rectangular shape, and a lead bar pulling roller group and a lead bar rolling and cutting roller group arranged in sequence along the lead bar conveying direction, wherein a plurality of lead bar mold cavities are evenly distributed inside the lead bar mold in the width direction, and a plurality of heating blocks and a plurality of water cooling tubes are evenly distributed on the top of the lead bar mold in the length direction, wherein the heating blocks and the water cooling tubes are arranged alternately one by one, the lead bar mold cavities are arranged along the length direction of the lead bar mold, and a lead liquid inlet and a lead bar outlet are formed at both ends respectively, and a material distribution bin is formed inside the lead bar mold, wherein the material distribution bin is arranged along the width direction of the lead bar mold, and one side of the material distribution bin is connected to a plurality of lead liquid inlets at the same time, and a lead liquid feed port is formed on the other side of the material distribution bin.

[0009] Furthermore, the lead bar mold is also provided with a molten lead conveying pipe I matched with it, a valve is provided on the molten lead conveying pipe I and the outlet of the molten lead conveying pipe I is connected with the molten lead feeding port, the inlet of the molten lead conveying pipe I is connected with a molten lead storage furnace, the molten lead storage furnace is provided with a lead smelting furnace matched with it, a molten lead conveying pipe II is connected between the lead smelting furnace and the molten lead storage furnace, the molten lead conveying pipe II and the molten lead conveying pipe I are molten lead conveying pipes with built-in heaters, a lead pump is also provided on the molten lead conveying pipe II, the side of the lead bar rolling and cutting roller group away from the lead bar pulling roller group is provided with a lead pellet collecting hopper matched with itself, the lead pellet collecting hopper is sequentially connected with a lead pellet conveyor belt and a lead pellet storage barrel.

[0010] Furthermore, the lead strip mold cavity includes a lead strip forming area connected to the material distribution bin, and a lead strip demolding area integrally connected to the lead strip forming area on the side away from the material distribution bin, the longitudinal section of the lead strip forming area is rectangular, the lead strip forming area has a demolding slope of 3° and the longitudinal section is a right-angled trapezoid that is narrow on the side close to the lead strip forming area and wide on the side away from the lead strip forming area, the lead strip traction roller group includes a main traction roller group and a transition traction roller, the transition traction roller is arranged at adjacent positions of multiple lead strip outlets, the main traction roller group is arranged on the side of the transition traction roller away from the lead strip outlet and includes an upper and lower The upper traction roller and the lower traction roller are arranged in parallel and opposite to each other, and the upper traction roller, the lower traction roller, and the transition traction roller can be rotatably arranged horizontally, and the length directions of the upper traction roller, the lower traction roller, and the transition traction roller are perpendicular to the conveying direction of the lead strip, and the upper traction roller, the lower traction roller, and the transition traction roller are all toothed rollers and can be raised and lowered, and the lead strip rolling roller group includes a rolling roller and an auxiliary roller that can be rotatably arranged horizontally, and the rolling roller and the auxiliary roller are arranged opposite to each other up and down, and the length directions of the rolling roller and the auxiliary roller are perpendicular to the conveying direction of the lead strip, and the rolling roller is also provided with a rolling cutter disc.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a lead bar mold. A plurality of lead bar mold cavities with lead liquid inlets and lead bar outlets are evenly distributed inside the lead bar mold. A lead bar pulling roller group and a lead bar rolling roller group are sequentially arranged along the lead bar conveying direction to achieve the production of multiple lead particles. That is, multiple lead bars can be formed simultaneously through multiple lead bar mold cavities, and the roller pulling mode of the lead bar pulling roller group can achieve the simultaneous pulling and conveying of multiple lead bars, and the roller rolling mode of the lead bar rolling roller group can achieve the simultaneous slitting and granulation of multiple lead bars, which greatly improves the granulation speed. On this basis, the lead bar mold cavities are arranged along the length direction of the lead bar mold and are evenly distributed in the width direction of the lead bar mold. The top of the lead bar mold is A plurality of heating blocks and a plurality of water-cooling tubes are evenly distributed in the length direction, and the heating blocks and the water-cooling tubes are arranged in a one-to-one coordination manner, so that the heating blocks and the water-cooling tubes can cooperate with each other in the whole process of forming the molten lead into the lead bars, thereby realizing the whole-process control of the temperature in the whole process of forming the molten lead into the lead bars. That is, according to the temperature requirements, the heating blocks and water-cooling blocks in the corresponding positions can be activated simultaneously or individually for heating and cooling the lead bar mold, which can effectively avoid the temperature instability of the molten lead, premature solidification, and clogging of the lead bar mold, and at the same time, the molten lead can be gradually cooled, thereby changing from liquid to solid, which can further increase the granulation speed and greatly improve the quality of the formed lead bars and even the final lead granulation.

[0013] 2. The utility model is provided with a lead liquid delivery pipe I and a lead liquid delivery pipe II. The lead liquid delivery pipe I and the lead liquid delivery pipe II are both lead liquid delivery pipes with built-in heaters in the utility model, which effectively avoids premature solidification of the lead liquid before being fed into the lead bar mold, thereby further improving the granulation speed and granulation quality; at the same time, the lead bar mold cavity of the lead bar mold in the utility model includes a lead bar molding area and a lead bar demoulding area. The lead bar demoulding area in the utility model has a demoulding slope of 3°, which ensures smooth and stable output of the lead bar, further avoids the occurrence of blockage inside the lead bar mold, thereby further ensuring the granulation speed and granulation quality.

[0014] 3. The lead strip traction roller group in the utility model comprises an upper traction roller, a lower traction roller and a transition traction roller which are rotatably arranged horizontally. In the utility model, the upper traction roller, the lower traction roller and the transition traction roller are all toothed rollers and can be lifted up and down, thereby ensuring stable and rapid traction and transmission of multiple lead strips, that is, the teeth on the upper traction roller, the lower traction roller and the transition traction roller are in close contact with the surface of the lead strip being transmitted. When the upper traction roller, the lower traction roller and the transition traction roller rotate, the lead strip is driven to be transported forward, and the contact pressure between the upper traction roller, the lower traction roller and the transition traction roller and the lead strip can be adjusted by lifting and lowering the upper traction roller, the lower traction roller and the transition traction roller, which ultimately further ensures the granulation speed and granulation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the working principle of the utility model;

[0016] Figure 2 This is a schematic diagram of the working principle of the lead strip mold of the utility model;

[0017] Figure 3 It is a cross-sectional schematic diagram of the lead strip mold of the utility model;

[0018] Figure 4 It is a longitudinal section schematic diagram of the lead strip mold of the utility model;

[0019] Figure 5 This is a schematic diagram of the working principle of the main traction roller group of the utility model;

[0020] Figure 6 This is a schematic diagram of the working principle of the transition traction roller of the utility model;

[0021] Figure 7 Schematic diagram of the working principle of the lead strip rolling and cutting roller group of the utility model;

[0022] In the figure: 1. heating block, 2. water cooling pipe, 3. lead bar mold, 31. lead bar mold cavity, 311. lead liquid inlet, 312. lead bar outlet, 313. lead bar forming area, 314. lead bar demoulding area, 32. material distribution bin, 33. lead liquid feeding port, 4. lead liquid conveying pipe I, 5. lead liquid storage furnace, 6. lead liquid conveying pipe II, 7. lead pump, 8. lead smelting furnace, 9. lead pellet collecting bucket, 10. lead pellet conveyor belt, 11. lead pellet storage barrel, 12. upper traction roller, 13. lower traction roller, 14. transition traction roller, 15. rolling cutter, 151. rolling cutter disc, 16. auxiliary roller. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1 to Figure 7 , which shows a lead pellet granulation equipment, including a lead smelting furnace 8, a lead liquid conveying pipe II6, a lead liquid storage furnace 5, a lead liquid conveying pipe I4 and a lead bar mold 3 which are arranged in sequence (the functions and structures of conventional equipment such as the lead smelting furnace and the lead liquid storage furnace are well known in the art, so no further explanation is given here, and they are not shown in detail in the accompanying drawings), the lead liquid conveying pipe II6 is a lead liquid conveying pipe with a built-in heater (the functions and structures of conventional components such as the heater are well known in the art, and the connection settings are also common knowledge, so no further explanation is given here, and they are not shown in detail in the accompanying drawings), the lead liquid conveying pipe II6 is connected between the lead smelting furnace 8 and the lead liquid storage furnace 5, and a lead pump 7 is provided on the lead liquid conveying pipe II6, the lead bar mold 3 is a three-dimensional rectangular shape, and a plurality of heating blocks 1 and a plurality of water-cooling pipes 2 are evenly distributed on the top in the length direction (the functions and structures of conventional components such as the heater and the water-cooling pipe are well known in the art, and the connection settings are also common knowledge, so no further explanation is given here, and they are not shown in detail in the accompanying drawings, and in this embodiment, the heating blocks 1 and the water-cooling pipes 2 can be single Independent control), the water cooling tube 2 and the heating block 1 are arranged alternately, a plurality of lead strip mold cavities 31 and a sub-bin 32 are formed inside the lead strip mold 3, the lead strip mold cavities 31 are evenly distributed in the width direction of the lead strip mold 3 and are arranged along the length direction of the lead strip mold 3, each lead strip mold cavity 31 is formed with a lead strip outlet 312 at one end away from the lead liquid storage furnace 5, and each lead strip mold cavity 31 is formed with a lead liquid inlet 311 at one end close to the lead liquid storage furnace 5, and the sub-bin 32 is arranged along the width direction of the lead strip mold 3, and a plurality of The molten lead inlet 311 of the lead bar mold cavity 31 is simultaneously connected to one side of the distribution bin 32, and a molten lead feed port 33 is formed on the other side of the distribution bin 32. The molten lead delivery pipe Ⅰ4 is a molten lead delivery pipe with a built-in heater and valve (the functions and structures of conventional components such as heaters and valves are well known in the art, and the connection settings are also common knowledge, so no further explanation is given here and they are not shown in the accompanying drawings). The molten lead feed port 33 is connected to the outlet of the molten lead delivery pipe Ⅰ4, and the inlet of the molten lead delivery pipe Ⅰ4 is connected to the molten lead storage furnace 5.

[0025] Furthermore, a transition traction roller 14 is provided on the side of the lead bar mold 3 away from the lead liquid conveying pipe Ⅰ4, and the transition traction roller 14 is rotatably arranged horizontally at the adjacent position of the plurality of lead bar outlets 312 (the basic structure such as the rotary drive motor equipped with the existing traction roller is not specifically described here, but its function realization should not be limited thereby), a main traction roller group is provided on the side of the transition traction roller 14 away from the lead bar outlet 312, a lead bar rolling roller group is provided on the side of the main traction roller group away from the transition traction roller 14, a lead bar rolling roller group is provided on the side of the lead bar rolling roller group away from the main traction roller group, and a lead pellet collecting hopper 9 matched with the lead bar rolling roller group is provided on the side of the lead pellet collecting hopper 9 away from the lead bar rolling roller group, and a lead pellet conveying belt 10 and a lead pellet storage barrel 11 are connected in sequence (the lead pellet collecting hopper, the lead pellet conveying belt and the lead pellet storage barrel 11 are connected in sequence). The functions and structures of conventional equipment such as particle storage barrels are well known in the art, so they are not described in detail here and are not shown in detail in the drawings). The main traction roller group includes an upper traction roller 12 and a lower traction roller 13 which are parallel to each other and rotatably arranged horizontally. The length directions of the transition traction roller 14, the upper traction roller 12, and the lower traction roller 13 are all perpendicular to the conveying direction of the lead strip. The lead strip rolling roller group includes a rolling roller 15 and an auxiliary roller 16 which are opposite to each other and rotatably arranged horizontally (the basic structures such as the rotating drive motor equipped with the existing traction rollers are not described in detail here, but their function realization should not be limited thereby). A rolling cutter disc 151 is provided on the rolling roller 15, and the length directions of the rolling roller 15 and the auxiliary roller 16 are both perpendicular to the conveying direction of the lead strip.

[0026] Furthermore, the upper traction roller 12, the lower traction roller 13, and the transition traction roller 14 are all toothed rollers and can be raised and lowered (the basic structures such as the lifting cylinders equipped with the existing traction rollers are not described in detail here, but their functions should not be limited thereto), and the lead bar mold cavity 31 is formed by the lead bar forming area 313 and the lead bar demolding area 314 being connected in one piece. The lead bar forming area 313 is connected to the distribution bin 32 and the longitudinal section of the lead bar forming area 313 is rectangular. The lead bar demolding area 314 is arranged on the side away from the lead bar forming area 313 and away from the distribution bin 32. The lead bar demolding area 314 has a demolding slope of 3° and the longitudinal section is a right-angled trapezoid with a narrow side close to the lead bar forming area 313 and a wide side away from the lead bar forming area 313.

[0027] The working principle and workflow of the utility model are as follows:

[0028] First, the smelted lead liquid in the lead smelting furnace 8 (here, the temperature of the lead liquid is controlled at 380-500° C.) is transported to the lead liquid storage furnace 5 through the lead pump 7 and the lead liquid delivery pipe II 6 (in this embodiment, the bottom of the lead liquid storage furnace 5 is provided with a lead outlet buckle connected to the lead liquid delivery pipe I 4);

[0029] Then, the valve on the lead liquid delivery pipe Ⅰ4 is opened, so that the lead liquid in the lead liquid storage furnace 5 is filled into each lead bar mold cavity 31 of the lead bar mold 3 and flows to the transition traction roller 14. At this time, by controlling the heating block 1 and the water cooling pipe 2 of the lead bar mold 3, the lead liquid in each lead bar mold cavity 31 is gradually cooled and formed into lead bars and output at the same time (here, the temperature of the lead bar molding area 313 can be controlled to be above 320 degrees, and the temperature of the lead bar demoulding area 314 can be controlled to be below 320 degrees);

[0030] Next, after the temperature stabilizes, the transition traction roller 14 is pressed down and contacts with a plurality of lead strips at the same time, so that the lead strips are first transported between the upper traction roller 12 and the lower traction roller 13 under the rotation of the transition traction roller 14, and then transported between the rolling cutter roller 15 and the auxiliary roller 16 under the rotation of the upper traction roller 12 and the lower traction roller 13, and cut into lead particles of uniform size by the rolling cutter disc on the rolling cutter roller 15;

[0031] Finally, the cut lead pellets fall into the lead pellet collecting hopper 9 and are transported to the lead pellet storage barrel 11 for stand-by use via the lead pellet conveyor belt 10 .

[0032] During the whole process, the teeth on the transition traction roller 14, the upper traction roller 12 and the lower traction roller 13 are in close contact with the surface of the lead bar. When the upper traction roller 12, the lower traction roller 13 and the transition traction roller 14 rotate, the lead bar is driven to be transported forward. The contact pressure between the transition traction roller 14, the upper traction roller 12 and the lower traction roller 13 and the lead bar is adjusted by the up and down movement of the transition traction roller 14, the upper traction roller 12 and the lower traction roller 13. At the same time, when the formed lead bar is transported between the upper traction roller 12 and the lower traction roller 13, the upper traction roller 12 and the lower traction roller 13 provide the traction force for transporting the lead bar, and the transition traction roller 14 can be lifted upward without further transporting.

[0033] In addition, before the molten lead is transported, the heaters on the molten lead transport pipe I4 and the molten lead transport pipe II6, and the heating block 1 on the lead bar mold 3 can be used to preheat the molten lead transport pipe I4, the molten lead transport pipe II6, and the lead bar mold 3, respectively, to ensure that the molten lead will not cool and solidify quickly when it flows in.

Claims

1. A lead pellet making device, comprising a lead strip mold, characterized in that: It also includes a lead strip pulling roller group and a lead strip rolling roller group which are sequentially arranged along the lead strip conveying direction; the lead strip mold is in a three-dimensional rectangular shape and has a plurality of lead strip mold cavities evenly distributed inside in the width direction; a plurality of heating blocks and a plurality of water cooling tubes are evenly distributed on the top of the lead strip mold in the length direction; the heating blocks and the water cooling tubes are alternately arranged one by one; the lead strip mold cavities are arranged along the length direction of the lead strip mold and a lead liquid inlet and a lead strip outlet are respectively formed at both ends.

2. A lead shot granulation equipment according to claim 1, characterized in that: The lead strip mould also has a distribution bin formed inside, which is arranged along the width direction of the lead strip mould. One side of the distribution bin is connected to multiple lead liquid inlets at the same time, and a lead liquid feeding port is formed on the other side of the distribution bin.

3. A lead shot granulation equipment according to claim 2, characterized in that: The lead bar mold is also provided with a lead liquid delivery pipe I matched with it, a valve is provided on the lead liquid delivery pipe I and the outlet of the lead liquid delivery pipe I is connected with the lead liquid feeding port, the inlet of the lead liquid delivery pipe I is connected with a lead liquid storage furnace, the lead liquid storage furnace is provided with a lead smelting furnace matched with it, a lead liquid delivery pipe II is connected between the lead smelting furnace and the lead liquid storage furnace, and a lead pump is provided on the lead liquid delivery pipe II.

4. A lead shot granulation equipment according to claim 3, characterized in that: The molten lead delivery pipe I and the molten lead delivery pipe II are both molten lead delivery pipes with built-in heaters.

5. A lead shot granulation equipment according to claim 2, characterized in that: The lead bar mold cavity includes a lead bar forming area connected to the distribution bin, and a lead bar demolding area integrally connected to the side of the lead bar forming area away from the distribution bin. The longitudinal section of the lead bar forming area is a rectangle, and the longitudinal section of the lead bar forming area is a right-angled trapezoid that is narrow on the side close to the lead bar forming area and wide on the side away from the lead bar forming area.

6. A lead shot granulation equipment according to claim 5, characterized in that: The lead strip demoulding area has a demoulding slope of 3°.

7. The lead shot granulation equipment according to claim 1, characterized in that: A lead pellet collecting hopper matched with the lead strip rolling and cutting roller group is arranged on one side away from the lead strip pulling roller group, and the lead pellet collecting hopper is connected with a lead pellet conveying belt and a lead pellet storage barrel in sequence.

8. The lead shot granulation equipment according to claim 1, characterized in that: The lead strip rolling roller group includes a rolling roller and an auxiliary roller which are rotatably arranged horizontally. The rolling roller and the auxiliary roller are arranged opposite to each other up and down, and the length directions of the rolling roller and the auxiliary roller are perpendicular to the conveying direction of the lead strip. The rolling roller is also provided with a rolling cutter disc.

9. The lead shot granulation equipment according to claim 1, characterized in that: The lead bar traction roller group includes a main traction roller group and a transition traction roller. The transition traction roller is arranged at adjacent positions of multiple lead bar outlets. The main traction roller group is arranged on the side of the transition traction roller away from the lead bar outlet and includes an upper traction roller and a lower traction roller arranged parallel to each other. The upper traction roller, the lower traction roller, and the transition traction roller can all be rotatably arranged horizontally, and the length directions of the upper traction roller, the lower traction roller, and the transition traction roller are perpendicular to the conveying direction of the lead bar.

10. A lead shot granulation equipment according to claim 9, characterized in that: The upper traction roller, the lower traction roller, and the transition traction roller are all toothed rollers and can be raised and lowered.

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