A ladle insert cooling device

Abstract

The application discloses a slag ladle plug-in cooling device, relates to the technical field of copper slag slow cooling, and comprises a mounting module, an air supply module and an air guide module, the mounting module is detachably mounted on the slag ladle, the air outlet of the air supply module is in communication with the air inlet of the air guide module, the air outlet of the air guide module extends into the slag ladle and is used for supplying air into the slag ladle, and the air guide module is mounted on the mounting module. The application can improve the cooling efficiency and cooling effect.

Description

Technical Field

[0001] This invention relates to the field of slow cooling technology for copper slag, and in particular to an immersion cooling device for slag bags. Background Technology

[0002] Currently, the copper smelting industry mainly uses the copper slag slow cooling process for copper metal recovery. This process uses a slag ladle as a container and employs a combination of air cooling and water cooling for slow cooling. The air cooling stage often takes 6-16 hours. During this process, controlling the temperature drop rate of the copper molten slag within a suitable range helps the copper grains to aggregate, which in turn facilitates subsequent flotation recovery of copper.

[0003] Existing technologies mainly accelerate the cooling speed of the water cooling process and shorten the cooling time by adding a cooling device to the outer wall of the slag bag. However, in the above cooling method, since the cooling water only exists on the outer periphery of the slag bag, the middle part of the slag bag cannot be effectively cooled, resulting in low cooling efficiency and uneven temperature inside the slag bag, which affects the cooling effect. Summary of the Invention

[0004] The purpose of this invention is to provide a slag bag insertion cooling device to solve the problems existing in the prior art and improve cooling efficiency and cooling effect.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides an insertable cooling device for slag bags, comprising an installation module, an air supply module, and an air guide module. The installation module is detachably installed on the slag bag. The air outlet of the air supply module is connected to the air inlet of the air guide module. The air outlet of the air guide module extends into the interior of the slag bag and is used to supply air into the slag bag. The air guide module is installed on the installation module.

[0007] Preferably, the installation module includes a cover plate, the outer edge of which is provided with a plurality of positioning feet. The cover plate can be fastened to the upper opening of the slag bag, and the positioning feet can be engaged with the side wall of the slag bag. The air guide module is installed on the cover plate.

[0008] Preferably, the upper end of the cover plate is further provided with reinforcing ribs, which have a cross-shaped structure.

[0009] Preferably, the air supply module includes a blower, a wind box, and an air supply pipe. The air outlet of the blower is connected to the air inlet of the wind box, and the blower is used to send air through the wind box into the air supply pipe. The air outlet of the air supply pipe is connected to the air inlet of the air guide module. The blower is also equipped with a variable frequency motor.

[0010] Preferably, the bellows is funnel-shaped, and the diameter of the bellows gradually increases from the blower to the air supply pipe.

[0011] Preferably, the air box is equipped with multiple guide vanes.

[0012] Preferably, the mounting module is connected to a support, and the blower is mounted on the support.

[0013] Preferably, the air guiding module includes multiple blower sleeves and multiple air supply pipes, and the multiple blower sleeves and multiple air supply pipes correspond one-to-one, with the air outlet of the air supply pipe connected to the air inlet of the blower sleeve.

[0014] Preferably, the blower sleeve includes a ventilation straight pipe and an outer sleeve. The outer sleeve is fitted around the outer periphery of the ventilation straight pipe, and there is a ventilation gap between the inner wall of the outer sleeve and the outer wall of the ventilation straight pipe. The upper end of the ventilation straight pipe is connected to the lower end of the air supply pipe, and the lower end of the ventilation straight pipe extends toward the bottom surface of the slag bag.

[0015] Preferably, the outer sleeve is in the shape of an inverted frustum, and the outer wall of the outer sleeve is welded to the mounting module. The upper end of the inner wall of the outer sleeve is connected to the upper end of the outer wall of the ventilation straight pipe through a connector.

[0016] The present invention achieves the following technical effects compared to the prior art:

[0017] The slag bag insertion cooling device provided by this invention has an installation module that can be detachably installed on the slag bag. The air outlet of the air supply module is connected to the air inlet of the air guide module. The air outlet of the air guide module extends into the slag bag and is used to supply air into the slag bag. Directly inserting the air guide module into the liquid slag bag increases the cooling depth, which is beneficial to the overall cooling of copper slag and solves the problem of uneven cooling caused by local cooling. At the same time, it also avoids the need for a power device to drill holes in the slag shell. The variable frequency fan in the air supply module can control the cooling rate by adjusting the air supply volume during the air cooling stage, thereby accelerating heat dissipation. While ensuring the copper flotation recovery rate, it shortens the air cooling stage time. The air guide module is installed on the installation module, which improves the stability of the overall structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the slag bag insertion cooling device of the present invention;

[0020] Figure 2 This is a top view of the slag bag insertion cooling device of the present invention;

[0021] Figure 3 This is a right view of the slag bag insertion cooling device of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the blower sleeve in this invention;

[0023] In the diagram: 100-cover plate, 110-positioning clip, 120-reinforcing rib, 200-blowing sleeve, 210-ventilation straight pipe, 220-outer sleeve, 230-connector, 300-blowing fan, 310-air supply pipe, 320-support, 330-air box, 340-guide vane, 400-slag bag. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The purpose of this invention is to provide a slag bag insertion cooling device to solve the problems existing in the prior art and improve cooling efficiency and cooling effect.

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1-4 As shown, this embodiment provides a slag bag insertion cooling device, including an installation module, an air supply module, and an air guide module. The installation module is detachably installed on the slag bag 400. The air outlet of the air supply module is connected to the air inlet of the air guide module. The air outlet of the air guide module extends into the interior of the slag bag 400 and is used to supply air into the slag bag 400. Directly inserting the air guide module into the liquid slag bag 400 increases the cooling depth, which is beneficial for the overall cooling of copper slag and solves the problem of uneven cooling caused by local cooling. At the same time, it avoids the need for a power device to drill holes in the slag shell, simplifying the structure. The air guide module is installed on the installation module, which improves the stability of the overall structure.

[0028] Specifically, the installation module includes a cover plate 100, and the outer edge of the cover plate 100 is provided with multiple positioning feet 110, preferably four positioning feet 110. The cover plate 100 can be fastened to the upper opening of the slag bag 400, and the positioning feet 110 can be snapped onto the side wall of the slag bag 400, thereby realizing the stable fixing of the cover plate 100 to the opening of the slag bag 400. At the same time, the snap-fit ​​connection method can facilitate installation and disassembly, and realize the reuse of the device. The air guide module is installed on the cover plate 100 to realize the fixation of the air guide module.

[0029] The upper end of the cover plate 100 is also provided with reinforcing ribs 120. The reinforcing ribs 120 have a cross-shaped structure to improve the strength of the cover plate 100 and prevent the cover plate 100 from deforming. The cover plate 100 is preferably a circular slag bag 400 cover plate 100, made of heat-resistant alloy steel, with a thickness of 5mm-20mm.

[0030] The air supply module includes a blower 300, a wind box 330, and an air supply duct 310. The air outlet of the blower 300 is connected to the air inlet of the wind box 330, and the air outlet of the blower 300 is guided by the wind box 330 and sent into the air supply duct 310. The air outlet of the air supply duct 310 is connected to the air inlet of the air guide module. The blower 300 is also equipped with a variable frequency motor. During the air cooling stage, the cooling rate can be controlled by adjusting the air volume of the blower 300, which accelerates heat dissipation and shortens the air cooling stage time while ensuring the copper flotation recovery rate.

[0031] The bellows 330 is funnel-shaped, and its diameter gradually increases from the blower 300 to the air supply pipe 310, so that the air can enter the air supply pipe 310 after being guided by the bellows 330.

[0032] Multiple guide vanes 340 are installed inside the air box 330 to divert the air, and the diverted air enters each air supply duct 310 respectively.

[0033] The mounting module connects to a support 320, on which the blower 300 is mounted, improving the stability of the blower 300 during operation. The blower 300 is a variable frequency fan, placed on the support 320, and the airflow is distributed through guide vanes 340 within the air box 330. The support 320 is 2000mm-3000mm long and made of heat-resistant alloy steel.

[0034] The air guiding module includes multiple blower sleeves 200 and multiple air supply pipes 310, with each blower sleeve 200 and air supply pipe 310 corresponding one-to-one. The air outlet of the air supply pipe 310 connects to the air inlet of the blower sleeve 200. By setting multiple blower sleeves 200 and distributing them evenly, more heat exchange points are created within the slag bag 400, enhancing the overall heat exchange inside the slag bag 400 and thus improving cooling efficiency and uniformity. The number of blower sleeves 200 can be adapted to the size of the designed slag bag 400.

[0035] The blower sleeve 200 includes a straight ventilation pipe 210 and an outer sleeve 220. The outer sleeve 220 is fitted around the outer periphery of the straight ventilation pipe 210, and there is a ventilation gap between the inner wall of the outer sleeve 220 and the outer wall of the straight ventilation pipe 210. During ventilation, the air first enters the outer sleeve 220 through the inside of the straight ventilation pipe 210, and then exits through the ventilation gap, thereby enhancing the cooling of the copper slag interior. Simultaneously, the blown-out hot air can be used for waste heat recovery. The upper end of the straight ventilation pipe 210 is connected to the lower end of the air supply pipe 310, and the lower end of the straight ventilation pipe 210 extends towards the bottom surface of the slag pot 400, achieving cooling of the interior of the slag pot 400. In a preferred embodiment, the centrally located straight ventilation pipe 210 and outer sleeve 220 are relatively long, with their lower ends extending to a slightly lower center position within the slag pot 400, which enhances the heat transfer intensity at the slag core.

[0036] The number of outer sleeves 220 is preferably 1 to 13, including 1 at the center of cover plate 100, or 1 at the center of cover plate 100 and 2 to 12 on the outer ring.

[0037] The ventilation straight pipe 210 is made of heat-resistant alloy steel. The ventilation straight pipe 210 is open at both ends, with an outer diameter of 40mm-80mm, an inner diameter of 34mm-74mm, and a length of 2000mm-3800mm.

[0038] The outer tube 220 is made of heat-resistant alloy steel. The outer tube 220 is open at the top and closed at the bottom. The outer diameter of the upper end is 100mm-200mm and the inner diameter is 92mm-192mm. The outer diameter of the lower end is 60mm-100mm and the inner diameter is 52mm-92mm. The length is 2000mm-3500mm.

[0039] The inverted frustum shape of the outer sleeve 220 facilitates the connection between the outer sleeve 220 and the ventilation straight pipe 210, and also facilitates installation and disassembly. The outer wall of the outer sleeve 220 is welded to the mounting module for fixation. The upper end of the inner wall of the outer sleeve 220 is connected to the upper end of the outer wall of the ventilation straight pipe 210 via a connector 230 for fixation. The connector 230 is preferably a ribbed two-pipe connection structure, and the connector 230 is welded between the outer sleeve 220 and the ventilation straight pipe 210.

[0040] In use, immediately after the slag bag 400 is filled with slag, insert the slag bag insertion cooling device in this embodiment. Use the four positioning clips 110 on the cover plate 100 to position the cover plate 100. Insert the outer sleeve 220 and the ventilation straight pipe 210 into the corresponding positions in the copper slag of the slag bag 400. After installation, turn on the blower 300 and adjust the air volume to enhance the slow cooling inside the copper slag. Then, the slag bag 400 and the insertion cooling device are transported together to the corresponding slow cooling site by the slag transport vehicle.

[0041] During the slow cooling process, the cold air blown by the blower 300 is distributed through the guide vanes 340 inside the air box 330 and enters the internal ventilation duct 210. From the lower end of the ventilation duct 210, it enters the outer casing 220. The heat inside the slag bag 400 is conducted to the inner wall of the outer casing 220, where it convects with the cold air. The cold air absorbs heat and becomes hot air, which is then blown out from the upper end of the outer casing 220, thus accelerating the heat exchange inside the copper slag. By adjusting the airflow of the blower 300 at different slow cooling stages, the subsequent copper slag flotation recovery rate can be ensured while simultaneously accelerating the air cooling and slow cooling time to improve production efficiency.

[0042] This embodiment, through the above design, eliminates the need for dynamic drilling at the crust formation point on the upper surface of the slag bag 400. When the copper slag is in a liquid state, each blower sleeve 200 is directly inserted from the top. Then, under the action of the blower 300, the temperature drop rate of the copper slag during the air cooling stage is controlled. While ensuring the copper slag flotation recovery rate, the air cooling time is greatly shortened, the actual production efficiency is improved, and the problems of long copper slag slow cooling time and large differences in temperature drop rate in different areas of the copper slag are solved.

[0043] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A slag bag insertion cooling device, characterized in that: It includes an installation module, an air supply module, and an air guide module. The installation module can be detachably installed on the slag bag. The air outlet of the air supply module is connected to the air inlet of the air guide module. The air outlet of the air guide module extends into the interior of the slag bag and is used to supply air into the slag bag. The air guide module is installed on the installation module. The air supply module includes a blower, a wind box, and an air supply pipe. The air outlet of the blower is connected to the air inlet of the wind box, and the blower is used to send air through the wind box into the air supply pipe. The air outlet of the air supply pipe is connected to the air inlet of the air guide module. The blower is also equipped with a variable frequency motor. The air guiding module includes multiple blower sleeves and multiple air supply pipes, and the multiple blower sleeves and multiple air supply pipes correspond one-to-one. The air outlet of the air supply pipe is connected to the air inlet of the blower sleeve. The blower sleeve includes a ventilation straight pipe and an outer sleeve. The outer sleeve is fitted around the outer periphery of the ventilation straight pipe, and there is a ventilation gap between the inner wall of the outer sleeve and the outer wall of the ventilation straight pipe. The upper end of the ventilation straight pipe is connected to the lower end of the air supply pipe, and the lower end of the ventilation straight pipe extends toward the bottom surface of the slag bag.

2. The slag bag insertion cooling device according to claim 1, characterized in that: The installation module includes a cover plate with multiple positioning feet on its outer edge. The cover plate can be fastened to the upper opening of the slag bag, and the positioning feet can be engaged with the side wall of the slag bag. The air guide module is installed on the cover plate.

3. The slag bag insertion cooling device according to claim 2, characterized in that: The upper end of the cover plate is also provided with reinforcing ribs, which have a cross-shaped structure.

4. The slag bag insertion cooling device according to claim 1, characterized in that: The bellows is funnel-shaped, and its diameter gradually increases from the blower to the air supply pipe.

5. The slag bag insertion cooling device according to claim 4, characterized in that: The air box is equipped with multiple guide vanes.

6. The slag bag insertion cooling device according to claim 1, characterized in that: The mounting module is connected to a support, and the blower is mounted on the support.

7. The slag bag insertion cooling device according to claim 1, characterized in that: The outer sleeve is in the shape of an inverted frustum, and the outer wall of the outer sleeve is welded to the mounting module. The upper end of the inner wall of the outer sleeve is connected to the upper end of the outer wall of the ventilation straight pipe through a connector.

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