Industrial smelting furnace slag waste heat recovery device with high-temperature-resistant heat exchange cavity

Abstract

The utility model discloses an industrial smelting furnace slag waste heat recovery device with high temperature resistant heat exchange cavity, specifically related to slag waste heat recovery technical field, including support seat, be provided with waste heat recovery subassembly on the support seat, waste heat recovery subassembly includes the temperature -insulated cylinder of setting up on the support seat, the inner chamber bottom of temperature -insulated cylinder is provided with the backing pad, and the middle part of backing pad is provided with the residue storage cylinder for the slag receiving. The utility model discloses through encircling type water tank cooperation flow guide pipe series connection design, increased the contact area with residue storage cylinder, and cold water circulation is smooth, can quickly absorb the slag heat, and the utilization rate of waste heat recovery is greatly improved, and the temperature -insulated cylinder is double -layer structure, can effectively resist the high temperature erosion of slag, reduces the component loss, and the temperature -insulated cylinder is rotatably connected with bearing seat through the limiting shaft, and is matched with the antiskid handle, can easily pour the cooling slag, and the limiting ring is threadedly connected with the temperature -insulated cylinder, can firmly fixed residue storage cylinder, avoids the displacement.

Description

Technical Field

[0001] This utility model relates to the field of slag waste heat recovery technology, and more specifically, to an industrial smelting furnace slag waste heat recovery device with a high-temperature heat exchange chamber. Background Technology

[0002] Industrial smelting furnace slag is a molten solid waste generated during the smelting of iron and steel and non-ferrous metals. Its temperature is as high as 1200-1600℃, and the sensible heat it contains accounts for 15%-30% of the total energy consumption of smelting, making it an important waste heat resource.

[0003] Current waste heat recovery systems suffer from low heat transfer efficiency, resulting in significant energy waste that is not effectively recovered. They also lack high-temperature resistance, making components susceptible to damage from high-temperature slag corrosion. Furthermore, they are inconvenient to operate, with cumbersome slag disposal procedures. Inadequate sealing and fixing structures allow heat to easily escape through gaps, and slag storage components are prone to displacement during use, affecting recovery stability. These problems make existing systems unsuitable for recovering high-temperature slag, leading to severe energy waste. Therefore, there is an urgent need for a more efficient, durable, and easy-to-operate waste heat recovery device. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides an industrial smelting furnace slag waste heat recovery device with a high-temperature heat exchange chamber, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a waste heat recovery device for industrial smelting furnace slag with a high-temperature heat exchange chamber, including a support base, on which a waste heat recovery component is provided; The waste heat recovery assembly includes a heat insulation cylinder mounted on a support base. A pad is provided at the bottom of the inner cavity of the heat insulation cylinder, and a slag storage cylinder for receiving slag is provided in the middle of the pad. The outer side of the slag storage cylinder is provided with several water tanks for heat recovery, and each water tank is connected by a guide pipe. Each of the two water tanks is provided with a circulation pipe for circulation.

[0006] Optionally, in a possible implementation, the support base includes two support frames, and each support frame is provided with a bearing seat at its top. Limiting shafts are provided on both sides of the insulation cylinder, and one end of each limiting shaft extends to the bearing seat and is rotatably connected to the bearing seat. The two bearing seats are arranged side by side. A reinforcing plate is fixedly provided on the outside of the limiting shaft in the middle of one of the bearing seats. A handle is provided on one side of the top of the reinforcing plate. One end of the handle is arc-shaped and covered with an anti-slip sleeve. Mounting grooves are provided on both sides of the bottom surface of the insulation cylinder. The circulation pipe is embedded in the mounting groove and is engaged with the mounting groove. A slag hopper is provided on one side of the top of the slag storage cylinder. A limiting ring is provided at the top of the slag storage cylinder. The limiting ring is threadedly connected to the insulation cylinder, and the bottom end of the limiting ring abuts against the slag hopper. The technical effects and advantages of this utility model are as follows: By using a surround-type water tank in series with a guide pipe, the contact area with the slag storage cylinder is increased, the cold water circulation is smooth, and the heat of the slag can be quickly absorbed, which greatly improves the waste heat recovery and utilization rate.

[0007] The insulation cylinder has a double-layer structure, which can effectively resist the high-temperature erosion of slag and reduce component wear. The insulation cylinder is rotatably connected to the bearing seat through the limiting shaft. With the anti-slip handle, the cooled slag can be easily poured out. The limiting ring is threadedly connected to the insulation cylinder, which can firmly fix the slag storage cylinder and prevent displacement.

[0008] The circulation pipe is embedded in the mounting groove and fixed with high-temperature resistant sealant. The weld between the guide pipe and the water tank is sealed to reduce heat loss from the gaps and prevent water leakage from affecting use. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0010] Figure 1 This is a front view of the overall structure of this utility model.

[0011] Figure 2 This is a top view of the overall structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the pad, slag storage cylinder, water tank, slag pouring hopper and guide pipe of this utility model.

[0013] Figure 4This is a schematic diagram of the support base, insulation cylinder, reinforcing plate, handle, bearing seat, and mounting groove of this utility model.

[0014] The attached diagram is labeled as follows: 1. Support base; 2. Insulation cylinder; 3. Pad plate; 4. Slag storage cylinder; 5. Water tank; 6. Guide pipe; 7. Bearing seat; 8. Reinforcing plate; 9. Installation groove; 10. Circulation pipe; 11. Slag hopper; 12. Limiting ring; 13. Handle. Detailed Implementation

[0015] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This embodiment discloses a waste heat recovery device for industrial smelting furnace slag with a high-temperature heat exchange chamber. The device achieves efficient heat exchange, convenient operation, and safe temperature insulation through the coordinated operation of multiple components, effectively recovering the total energy consumption of smelting from the slag and avoiding energy waste. All components are made of corrosion-resistant and high-temperature-resistant materials suitable for high-temperature operating conditions, such as 310S stainless steel and high-temperature-resistant ceramic fiber.

[0017] As attached Figure 1 Appendix Figure 4 As shown, the support base 1 includes two symmetrically arranged steel structure support frames, each with a bearing seat 7 welded and fixed to its top. The two bearing seats 7 are arranged side by side in the horizontal direction. The heat insulation cylinder 2 adopts a double-layer structure, with the inner layer being a high-temperature resistant ceramic fiber board and the outer layer being a steel plate. Limiting shafts are symmetrically welded on its left and right sides. The end away from the heat insulation cylinder 2 extends to the inner ring of the two bearing seats 7 and is rotatably connected to the bearing seats 7, thereby realizing the rotation function of the heat insulation cylinder 2 around the limiting shaft.

[0018] As attached Figure 4 As shown, a reinforcing plate 8 is welded and fixed to the limiting shaft on the outer side of one of the bearing seats 7, and a handle 13 is welded to one side of its top. The handle 13 is made of round steel bent into shape, with one end having an arc-shaped structure adapted to hand grip, and the surface is covered with a silicone rubber anti-slip sleeve. The surface of the anti-slip sleeve has evenly distributed anti-slip textures, which makes it easy for the operator to apply force to rotate the heat insulation cylinder 2.

[0019] The bottom surface of the heat insulation cylinder 2 has mounting grooves 9 on both sides for embedding and fixing the circulation pipe 10. The circulation pipe 10 is bonded to the inner wall of the mounting groove 9 with high-temperature resistant sealant to ensure a stable installation and prevent heat loss from the gaps.

[0020] As attached Figure 1 Appendix Figure 3As shown, a pad 3 is laid horizontally at the bottom of the inner cavity of the heat insulation cylinder 2. The pad 3 is a high-temperature resistant ceramic plate. The pad 3 is fixedly connected to the bottom of the heat insulation cylinder 2 by bolts. It is used to support the slag storage cylinder 4 and reduce the direct damage of the high temperature of the slag to the heat insulation cylinder 2.

[0021] The slag storage cylinder 4 is a cylindrical body made of high-temperature resistant alloy. A slag hopper 11 is integrally formed on one side of its top. The slag hopper 11 has an inclined structure with an inclination angle of 30°, facilitating the smooth introduction of high-temperature slag discharged from the smelting furnace. The top outer side of the slag storage cylinder 4 is provided with external threads, which are adapted to the internal threads of the limiting ring 12, as shown in the attached diagram. Figure 3 As shown, the limiting ring 12 is sleeved on the top of the slag storage cylinder 4 and threadedly connected to the inner wall of the top of the heat insulation cylinder 2. The bottom end of the limiting ring 12 is tightly against the top edge of the slag hopper 11, thereby fixing the slag storage cylinder 4 in the heat insulation cylinder 2 and preventing the slag storage cylinder 4 from shifting when the device rotates.

[0022] As attached Figure 3 As shown, several water tanks 5 are evenly distributed on the outer side of the slag storage cylinder 4. The inner wall of the water tanks 5 is treated with a high-temperature resistant thermally conductive coating to enhance heat exchange efficiency. The water tanks 5 are connected in series by guide pipes 6. The guide pipes 6 are high-temperature resistant stainless steel pipes, and both ends are welded and fixed to the side walls of adjacent water tanks 5. The welds are sealed with high-temperature resistant sealing material to prevent leakage. A circulation pipe 10 is welded to the bottom of each of the two oppositely positioned water tanks 5. The circulation pipe 10 is a high-temperature resistant stainless steel pipe of the same specification. One end is connected to the inside of the water tank 5, and the other end extends to the outside of the insulation cylinder 2 and connects to an external water circulation system to realize the circulation process of cold water introduction and hot water export.

[0023] The specific working principle is as follows: During assembly, the two bearing seats 7 are first fixed on the top of the two support frames of the support seat 1 to ensure that the central axes of the two bearing seats 7 are collinear. Insert the limiting shafts on both sides of the insulation cylinder 2 into the inner ring of the bearing seat 7 to complete the rotational connection between the insulation cylinder 2 and the support seat 1. Then weld and fix the reinforcing plate 8 to one of the limiting shafts. Finally, install the handle 13 with anti-slip sleeve on the reinforcing plate 8. Fix the pad 3 to the bottom of the inner cavity of the insulation cylinder 2, then place the slag storage cylinder 4 in the center of the pad 3, and press and fix the slag storage cylinder 4 by connecting the limiting ring 12 to the insulation cylinder 2 through the threaded connection. Water tanks 5 are evenly installed along the outside of the slag storage cylinder 4, and each water tank 5 is connected in series by a guide pipe 6 to ensure a tight seal and no leakage. Weld the two circulation pipes 10 to the two opposite water tanks 5 respectively, then embed the circulation pipes 10 into the mounting grooves 9 at the bottom of the insulation cylinder 2 and fix them to complete the assembly of the entire device.

[0024] During the preheating stage, cold water is injected into the water tank 5 through the circulation pipe 10. The cold water is evenly distributed in the water tank 5 through the guide pipe 6 to form a heat exchange chamber surrounding the slag storage cylinder 4. As attached Figure 1 Appendix Figure 3 As shown, high-temperature slag at 1200-1600℃ is poured into the slag storage cylinder 4 through the slag hopper 11. The heat of the slag is transferred to the water tank 5 on the outside through the wall of the slag storage cylinder 4, where it exchanges heat with the cold water in the water tank 5. The cold water absorbs the heat and heats up to become hot water. Hot water is led out to the external heat storage device through one of the circulation pipes 10, while the other circulation pipe 10 continuously replenishes cold water into the water tank 5 to achieve water circulation heat exchange. When the slag cools to the preset temperature, the operator holds the handle 13 and rotates the insulation cylinder 2 through the rotational cooperation of the limit shaft and the bearing seat 7 to pour out the cooled slag in the slag storage cylinder 4, completing one waste heat recovery cycle.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A waste heat recovery device for industrial smelting furnace slag with a high-temperature heat exchange chamber, comprising a support base (1), characterized in that: The support base (1) is equipped with a waste heat recovery component; The waste heat recovery assembly includes a heat insulation cylinder (2) set on a support base (1), a pad (3) is provided at the bottom of the inner cavity of the heat insulation cylinder (2), and a slag storage cylinder (4) for receiving slag is provided in the middle of the pad (3). The outer side of the slag storage cylinder (4) is provided with several water tanks (5) for heat recovery, and each water tank (5) is connected by a guide pipe (6). Each of the two water tanks (5) is provided with a circulation pipe (10) for circulation.

2. The industrial smelting furnace slag waste heat recovery device with a high-temperature heat exchange chamber according to claim 1, characterized in that: The support base (1) includes two support frames, and each support frame is provided with a bearing seat (7) on its top.

3. The industrial smelting furnace slag waste heat recovery device with a high-temperature heat exchange chamber according to claim 2, characterized in that: Limiting shafts are provided on both sides of the insulation cylinder (2), and one end of each limiting shaft extends to the bearing seat (7) and is rotatably connected to the bearing seat (7).

4. The industrial smelting furnace slag waste heat recovery device with a high-temperature heat exchange chamber according to claim 3, characterized in that: The two bearing seats (7) are arranged side by side, and a reinforcing plate (8) is fixedly installed on the outside of the limiting shaft in the middle of one of the bearing seats (7).

5. The industrial smelting furnace slag waste heat recovery device with a high-temperature heat exchange chamber according to claim 4, characterized in that: A handle (13) is provided on one side of the top of the reinforcing plate (8). One end of the handle (13) is arc-shaped and covered with an anti-slip sleeve.

6. The industrial smelting furnace slag waste heat recovery device with a high-temperature heat exchange chamber according to claim 1, characterized in that: The bottom surface of the insulation cylinder (2) is provided with mounting grooves (9) on both sides, and the circulation pipe (10) is embedded in the mounting groove (9) and engaged with the mounting groove (9).

7. The industrial smelting furnace slag waste heat recovery device with a high-temperature heat exchange chamber according to claim 1, characterized in that: A slag hopper (11) is provided on one side of the top of the slag storage cylinder (4), and a limit ring (12) is provided at the top of the slag storage cylinder (4).

8. The industrial smelting furnace slag waste heat recovery device with a high-temperature heat exchange chamber according to claim 7, characterized in that: The limiting ring (12) is threadedly connected to the heat insulation cylinder (2), and the bottom end of the limiting ring (12) abuts against the slag hopper (11).

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