Continuous casting and rolling lead belt cooling mechanism

Abstract

The utility model discloses a continuous casting and rolling lead belt cooling mechanism, and relates to the technical field of lead belt production. The device comprises a pair of extrusion rollers which penetrate through a lead belt between the extrusion rollers to extrude the lead belt, spray pipes and negative pressure covers for spraying water to the extrusion rollers are arranged on the two sides of the extrusion rollers above the lead belt; the negative pressure cover is communicated with a water mist steam treatment device, and the water mist steam treatment device is communicated with the negative pressure generating device; the water mist steam treatment device comprises a closed box body, the top of the box body is communicated with an air outlet pipe, and the bottom is communicated with an air inlet pipe; the box body is filled with treating fluid, the bottom end of the air inlet pipe is inserted into the bottom of the treating fluid, and the bottom end of the air outlet pipe is higher than the liquid level of the treating fluid. The negative pressure cover is linked with a water mist steam treatment device, lead-containing steam is forcibly sucked, gas-liquid reaction is forcibly carried out by utilizing the liquid seal type box body, lead pollutants are captured from the source, and the risk of environmental dissipation is remarkably reduced.

Description

Technical Field

[0001] This utility model belongs to the field of lead strip production technology, and in particular relates to a cooling mechanism for continuous casting and rolling lead strip. Background Technology

[0002] In continuous casting and rolling lead strip production lines, molten lead needs to be rapidly cooled to near room temperature (or the required temperature) after continuous casting and rolling to meet the requirements of subsequent coiling or shearing and packaging, and to increase production speed. In existing production processes, cooling is often achieved by spraying coolant onto the surface of the lead strip. The coolant absorbs heat rapidly upon contact with the lead strip surface, and some of the water vaporizes. However, the water vapor produced by this water vaporization carries a certain amount of lead, which can be released directly into the air and seriously affect the surrounding environment. Utility Model Content

[0003] The purpose of this invention is to provide a cooling mechanism for lead strip in continuous casting and rolling. By linking a negative pressure hood with a water mist steam treatment device, lead-containing vapor is forcibly drawn in, and a liquid-sealed box is used to force a gas-liquid reaction, thereby capturing lead pollutants at the source, significantly reducing the risk of environmental emissions, and solving the problems raised in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a cooling mechanism for lead strip in continuous casting and rolling, comprising pairs of extrusion rollers that pass through the lead strip between them for compression; spray pipes for spraying water onto the extrusion rollers and a negative pressure hood are provided on both sides of the extrusion rollers located above the lead strip; the negative pressure hood is connected to a water mist steam treatment device, which is connected to a negative pressure generating device; the water mist steam treatment device includes a sealed box, with an exhaust pipe connected to the top and an intake pipe connected to the bottom; the box is filled with a treatment liquid, the bottom end of the intake pipe is inserted into the bottom of the treatment liquid, and the bottom end of the exhaust pipe is above the surface of the treatment liquid; the negative pressure hood and the water mist steam treatment device are linked to forcibly draw in lead-containing vapor, and the liquid-sealed box forces a gas-liquid reaction to capture lead pollutants at the source, significantly reducing the risk of environmental emission.

[0006] Furthermore, the negative pressure generating device is a vacuum pump. Using a vacuum pump as the negative pressure generating device ensures that the negative pressure hood continuously and efficiently draws in steam, preventing the accumulation of lead-containing gas.

[0007] Furthermore, the treatment solution is either a dilute acetic acid solution or water. The dilute acetic acid solution can chemically neutralize the lead components to form precipitates, while water can physically adsorb lead particles. Both can efficiently solidify pollutants and simplify subsequent treatment processes.

[0008] Furthermore, a drain outlet is provided at the bottom of the tank, and a sealing plate is installed at the drain outlet. The drain outlet and the sealing plate enable easy cleaning of sediment, avoid blockage inside the tank, and maintain the activity of the treatment liquid.

[0009] Furthermore, the water mist steam treatment device is equipped with a diversion mechanism consisting of a connecting column and multiple perforated plates and partitions connected in series; the perforated plates are provided with sealing fins that seal against the inner wall of the box, and the partitions and the inner wall of the box form a gap; and the perforated plates and partitions are arranged alternately to extend the gas-liquid contact path and improve the lead component capture efficiency.

[0010] Furthermore, a temperature sensor is installed on the top of the enclosure and a refrigeration module is installed on its bottom. Both the temperature sensor and the refrigeration module are connected to a control unit. The temperature sensor and the refrigeration module work together to control the temperature of the processing liquid inside the enclosure, maintaining optimal chemical reaction activity.

[0011] Furthermore, an activated carbon drying box is also connected between the air outlet pipe and the negative pressure generating device. The activated carbon drying box adsorbs residual moisture and trace amounts of lead vapor in a secondary manner, achieving near-zero pollution emissions and meeting environmental protection standards.

[0012] Furthermore, a flow-blocking roller is installed above the lead strip on both sides of the extrusion roller, and the flow-blocking roller is in contact with the upper surface of the lead strip. The flow-blocking roller includes a roller shaft and a roller cylinder rotatably mounted on the outside of the roller shaft via bearings. Both ends of the roller shaft are connected to a connecting block with a guide rod on one side. The end of the guide rod is inserted into a guide cylinder, and a spring with its end abutting against the end of the guide rod is provided on the bottom side of the guide cylinder. The flow-blocking roller flexibly contacts the lead strip through a spring-buffered guiding structure to prevent the coolant from moving with the lead strip and to avoid scratching the surface of the lead strip. The flow-blocking roller is used to block the coolant on the upper surface of the lead strip, so that the coolant falls from both ends of the flow-blocking roller for easy recycling.

[0013] Furthermore, the top of the housing is detachably and sealed with a top cover, and the air outlet pipe is installed on the top cover; the air inlet pipe is "L", "S" or Z shaped, and the air inlet end of the air inlet pipe is higher than the surface of the treatment liquid.

[0014] This utility model has the following beneficial effects:

[0015] This invention uses a negative pressure hood linked with a water mist steam treatment device to forcibly extract lead-containing vapors and utilizes a liquid-sealed box to force a gas-liquid reaction, thereby capturing lead pollutants at the source and significantly reducing the risk of environmental escape.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the cooling mechanism of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the water mist steam treatment device of this utility model;

[0020] Figure 3 This is a schematic diagram of the flow-blocking roller structure of this utility model;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1-Extrusion roller, 2-Spray nozzle, 3-Negative pressure hood, 4-Water mist steam treatment device, 5-Baffle roller, 40-Box body, 41-Inlet pipe, 42-Outlet pipe, 43-Drain outlet, 44-Sealing plate, 45-Connecting column, 46-Perforated plate, 47-Partition plate, 48-Top cover, 51-Roller shaft, 52-Roller, 53-Connecting block, 54-Guide rod, 55-Guide cylinder, 100-Lead strip, 461-Sealing fins. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Please see Figure 1As shown, this utility model is a cooling mechanism for continuously cast and rolled lead strip. In use, the continuously cast and rolled lead strip is controlled to pass between a pair of extrusion rollers 1. Spray pipes 2 are set above both sides of the extrusion rollers 1 to spray water for cooling. The residual coolant on the surface is removed by the extrusion of the roller body, so that the extrusion rollers 1 can be cooled on both sides during use. At the same time, negative pressure hoods 3 connected to water mist steam treatment devices 4 are set on both sides of the extrusion rollers 1 above the lead strip 100. The water mist steam treatment device 4 is connected to a negative pressure generating device. In use, the negative pressure generating device is used to draw lead-containing vapor into the water mist steam treatment device 4 through the negative pressure hoods 3 for treatment, and then discharges it.

[0026] Specifically, such as Figure 2 The water mist steam treatment device 4 includes a box 40 with a top cover 48 installed on the top. The top cover 48 and the box 40 are detachable and sealed after installation. An exhaust pipe 42 is installed through the top cover 48, and a "Z"-shaped air inlet pipe 41 is connected to the bottom of the box 40. The box 40 is filled with dilute acetic acid solution. The bottom end of the exhaust pipe 42 is higher than the surface of the dilute acetic acid solution, and the air inlet end of the air inlet pipe 41 is higher than the liquid surface. The exhaust pipe 42 is connected to a vacuum pump, which serves as a negative pressure generating device.

[0027] A perforated plate 46 and a partition plate 47, connected in series by connecting columns 45, are added inside the housing 40. Sealing fins 461 are provided around the perimeter of the perforated plate 46 to fit snugly against the housing wall, while the partition plate 47 leaves a gap with the housing wall. The alternating arrangement of these two components forms a tortuous airflow channel, enhancing the dissolution of lead. A bottom drain outlet 43, in conjunction with a sealing plate 44, is used to periodically clean sediment.

[0028] A temperature sensor is installed on the top of the chamber 40, and a refrigeration module is installed at the bottom. Both the temperature sensor and the refrigeration module are connected to a control system to adjust the temperature of the treatment liquid to 25-30℃ in real time to optimize reaction efficiency. An activated carbon drying chamber is connected in series at the outlet of the exhaust pipe 42 to further adsorb residual moisture and trace contaminants.

[0029] Specifically, baffle rollers 5 are installed above the lead strips 100 located on both sides of the extrusion roller 1; for example Figure 3 The deflector roller 5 includes a roller shaft 51 and a roller 52 rotatably mounted on the outside of the roller shaft 51 via bearings. Both ends of the roller shaft 51 are connected to a connecting block 53 with a guide rod 54 on one side. The end of the guide rod 54 is inserted into a guide cylinder 55, and a spring with its end abutting against the end of the guide rod 54 is provided on the inner bottom side of the guide cylinder 55. The deflector roller 5 is in contact with the upper surface of the lead strip 100.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cooling mechanism for continuously cast and rolled lead strip, characterized in that: Includes a pair of extrusion rollers (1) that pass through the lead strip (100) between them for extrusion; The extrusion roller (1) located above the lead strip (100) is provided with spray pipes (2) for spraying water onto the extrusion roller (1) and negative pressure covers (3) on both sides; The negative pressure hood (3) is connected to a water mist steam treatment device (4), and the water mist steam treatment device (4) is connected to a negative pressure generating device; The water mist steam treatment device (4) includes a sealed box (40), the top of the box (40) is connected to an air outlet pipe (42), and the bottom is connected to an air inlet pipe (41). The housing (40) is filled with a treatment liquid, the bottom end of the air inlet pipe (41) is inserted into the bottom of the treatment liquid, and the bottom end of the air outlet pipe (42) is above the surface of the treatment liquid.

2. The cooling mechanism for continuously cast and rolled lead strip according to claim 1, characterized in that, The negative pressure generating device is an air pump.

3. The cooling mechanism for continuously cast and rolled lead strip according to claim 1, characterized in that, The treatment solution is either dilute acetic acid solution or water.

4. The cooling mechanism for continuously cast and rolled lead strip according to claim 1, characterized in that, The bottom of the box (40) is provided with a drain port (43), and a sealing plate (44) is installed at the drain port (43).

5. A cooling mechanism for continuously cast and rolled lead strip according to claim 4, characterized in that, The water mist steam treatment device (4) is equipped with a diversion mechanism consisting of a connecting column (45) that connects multiple perforated plates (46) and partitions (47) in series; The perforated plate (46) is provided with sealing fins (461) on its periphery that are sealed to the inner wall of the box (40), and the partition (47) and the inner wall of the box (40) form a gap; Furthermore, the perforated plate (46) and the partition plate (47) are alternately arranged.

6. A cooling mechanism for continuously cast and rolled lead strip according to claim 5, characterized in that, A temperature sensor is installed on the top of the housing (40), and a refrigeration module is installed on its bottom. Both the temperature sensor and the refrigeration module are connected to a control system.

7. A cooling mechanism for continuously cast and rolled lead strip according to claim 1, characterized in that, An activated carbon drying box is also connected between the air outlet pipe (42) and the negative pressure generating device.

8. A cooling mechanism for continuously cast and rolled lead strip according to claim 1, characterized in that, A flow-blocking roller (5) is installed above the lead strip (100) on both sides of the extrusion roller (1), and the flow-blocking roller (5) is in contact with the upper surface of the lead strip (100).

9. A cooling mechanism for continuously cast and rolled lead strip according to claim 8, characterized in that, The flow-blocking roller (5) includes a roller shaft (51) and a roller (52) rotatably mounted on the outside of the roller shaft (51) via a bearing; Both ends of the roller (51) are connected to a connecting block (53) with a guide rod (54) on one side. The end of the guide rod (54) is inserted into a guide cylinder (55), and a spring with its end abutting against the end of the guide rod (54) is provided on the inner bottom side of the guide cylinder (55).

10. A cooling mechanism for continuously cast and rolled lead strip according to claim 1, characterized in that, The top of the housing (40) is detachably sealed with a top cover (48), and the air outlet pipe (42) is installed on the top cover (48); the air inlet pipe (41) is "L" or "S" or Z shaped, and the air inlet end of the air inlet pipe (41) is higher than the surface of the treatment liquid.

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