A water cooling part of a reaction tower cylinder of a copper flash smelting furnace

Abstract

The utility model discloses a copper flash smelting furnace reaction tower barrel water cooling spare, including E type water cooling spare and steel frame, E type water cooling spare is by three layers horizontal tooth and vertical panel constitutes E shape structure, and two way copper embedded pipe is pre -buried in horizontal tooth, and two way copper embedded pipe is pre -buried in vertical panel, the steel frame is fixedly connected with E type water cooling spare through high -strength bolt and forms water cooling spare assembly, and water cooling spare assembly has three, and each is a layer, and three layers are connected through high -strength bolt from below to top, and form complete water cooling wall structure, the utility model discloses that the traditional flat water jacket sandwich brick is changed into three layers water cooling spare assembly structure, solves the problem, such as the flat water jacket interlayer sandwich brick layer of prior art is easy to be washed and eroded by high temperature flue gas, water jacket copper pipe exposes and leaks, and the tower wall hangs the nonuniform problem such as slag, E type water cooling spare and steel frame assembly structure, through pre -buried copper embedded pipe and enhance the cooling effect, make the reaction tower wall hang more uniform, avoid tower wall overheating phenomenon, improve water cooling spare service life and production capacity significantly.

Description

Technical Field

[0001] This utility model relates to the field of copper flash smelting furnace technology, specifically to a water-cooled component for the reaction tower body of a copper flash smelting furnace. Background Technology

[0002] Currently, the copper flash smelting process plays a crucial role in the crude copper smelting process within the "double flash" smelting workflow. With continuously increasing production capacity, copper flash smelting exhibits the "three highs" characteristics: high feed rate, high oxygen concentration, and high heat load. Simultaneously, to meet environmental protection and slag shape control requirements, lime is commonly used as a slag-forming agent, leading to increased slag viscosity and decreased fluidity within the furnace. This further exacerbates the scouring and chemical erosion of the furnace lining by the high-temperature flue gas and molten material within the reaction tower. Existing flash smelting furnace reaction tower structures generally employ a 15-layer horizontal water jacket lined with magnesia refractory bricks. The furnace is arranged such that layers 1-9 are located in the high-temperature reaction zone in the lower part of the reaction tower. These layers are subjected to direct scouring of high-temperature, high-speed dusty flue gas and thermal shock from periodic feeding. Actual operation shows that under the "three high" conditions (high temperature, high humidity, and high temperature) and the environment of high alkalinity lime slag, the magnesia refractory bricks in this area suffer severe erosion and even complete detachment within just three months. This causes the lower water jacket to be directly exposed to the high-temperature environment, some copper pipes of the water jacket to burn due to overheating, the surrounding plates to turn red, and frequent leaks in the cooling water system, which seriously affects the safe operation of the furnace.

[0003] The erosion and detachment of refractory materials result in a thin and uneven slag layer on the tower wall, which cannot form a stable and effective protective slag layer. This weakens the heat insulation and protection function of the water jacket, causing a large amount of heat to accumulate in local areas of the cylinder, resulting in severe overheating of the reaction tower wall. This not only accelerates the thermal fatigue and structural damage of the water jacket, but also threatens the structural integrity and production continuity of the entire furnace. Therefore, it is urgent to optimize the structure of the water-cooled components of the reaction tower cylinder. Summary of the Invention

[0004] In view of the shortcomings of existing water-cooled components, such as insufficient cooling, easy corrosion of refractory bricks leading to overheating of the tower wall and easy damage to the water jacket, this utility model provides a water-cooled component for the reaction tower body of a copper flash smelting furnace that effectively solves the problem of tower wall overheating, has good cooling effect and long service life.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A water-cooled component for the reaction tower body of a copper flash smelting furnace includes an E-shaped water-cooled component and a steel frame. The E-shaped water-cooled component consists of three layers of horizontal teeth and vertical panels forming an E-shaped structure. Two copper embedded pipes are pre-embedded in the horizontal teeth and two copper embedded pipes are pre-embedded in the vertical panels. The two ends of the copper embedded pipes are respectively connected to the factory's circulating water supply system. The steel frame is fixedly connected to the E-shaped water-cooled component by high-strength bolts to form a water-cooled component assembly. There are three water-cooled component assemblies, each consisting of one layer. The three layers are connected from bottom to top by high-strength bolts to form a complete water-cooled wall structure.

[0006] Furthermore, refractory material is embedded between the three horizontal teeth of the E-type water-cooled component to resist the direct erosion of high-temperature flue gas. During use, circulating water continuously cools the water-cooled component through copper embedded pipes. The refractory material layer effectively protects the water-cooled component from high-temperature corrosion, while the E-type structure design increases the contact area between the water-cooled component and the flue gas, improving cooling efficiency.

[0007] Furthermore, the water-cooled component assembly includes a steel frame and sixteen E-shaped water-cooled components. Each E-shaped water-cooled component is fixed to the steel frame with high-strength bolts, and each end is connected to the end of another E-shaped water-cooled component, so that the sixteen components are spliced ​​together to form a regular hexagonal cylindrical structure. The diameter of the assembled water-cooled component assembly can be adjusted according to the actual inner diameter of the reaction tower cylinder, and this diameter is the same as the diameter of the steel frame. For example, for a flash furnace reaction tower with an inner diameter of 5000mm, sixteen water-cooled component assemblies are selected to form a regular hexagonal cylindrical structure with a diameter of 5000mm, which has a good cooling effect. This splicing method ensures the overall strength and sealing of the reaction tower cylinder. Each water-cooled component assembly is fixedly connected with high-strength bolts, which is convenient for installation and disassembly, and facilitates later maintenance and replacement.

[0008] Furthermore, within the water-cooled wall, each layer of the water-cooled component assembly has a different height. From bottom to top, the first layer is 680mm high, the second layer is 868mm high, and the third layer is 1070mm high. The steel frames between the layers are fixedly connected by high-strength bolts. This layered design allows for targeted cooling based on the differences in heat load in different height areas of the reaction tower. For example, since the first layer is at a lower height, it can be configured with a higher cooling water flow rate compared to the second and third layers, achieving faster and more effective cooling and ensuring the cooling effect.

[0009] Furthermore, the bottom of the steel frame of the first-layer water-cooled component assembly is uniformly provided with several high-strength bolts; the top of the steel frame of the third-layer water-cooled component assembly is also uniformly provided with several high-strength bolts. In use, the bottom of the steel frame of the first-layer water-cooled component assembly is connected to the original serrated water-cooled component below the cylinder via high-strength bolts, and the top of the steel frame of the third-layer water-cooled component assembly is connected and fixed to the steel cladding of the cylinder via high-strength bolts, and suspended and fixed by the top hanging beam. This ensures the stability of the overall structure while allowing the water-cooled components some displacement space during thermal expansion and contraction, avoiding stress concentration.

[0010] How to use this utility model: In use, the three-layer water-cooled component assembly is sequentially installed inside the flash smelting furnace reaction tower. Each layer of the water-cooled component assembly is fixedly connected using high-strength bolts and connected to the circulating water system. During production, as high-temperature flue gas passes through the reaction tower, the E-type water-cooled components are efficiently cooled through pre-embedded copper pipes. The continuously circulating cooling water removes heat, maintaining the operating temperature of the water-cooled components. This structure can withstand high feed rates, high oxygen concentrations, and high heat loads, resulting in more uniform slag adhesion on the reaction tower wall. No overheating of the tower wall occurs during operation, making furnace operation safer and more stable, improving the effective volume utilization of the furnace, and effectively improving slag-copper separation. Due to the reduced heat load and optimized cooling, the service life of the middle and lower layers of water-cooled components is significantly extended, and production efficiency is improved without changing the furnace dimensions, fundamentally solving the problem of overheating of the flash smelting furnace reaction tower wall.

[0011] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. This utility model effectively solves the problems of the traditional flat water jacket being easily eroded by high-temperature flue gas, water jacket copper pipe leakage, and uneven slag adhesion on the tower wall in the prior art by replacing the traditional flat water jacket with a three-layer water-cooled component assembly structure. It adopts an E-type water-cooled component and steel frame assembly structure, and enhances the cooling effect by pre-embedded copper pipes, making the slag adhesion on the reaction tower wall more uniform, avoiding the phenomenon of tower wall overheating, significantly improving the service life of water-cooled components, achieving capacity increase without changing the furnace body size, while improving the effective furnace volume and slag-copper separation effect, solving the problem of overheating of the reaction tower wall in flash blowing furnace, and ensuring safe and stable operation under high feed rate, high oxygen concentration, and high heat load conditions.

[0012] 2. The E-type water-cooled component of this utility model features refractory material inlaid between the horizontal teeth, effectively resisting the erosion of high-temperature flue gas and extending its service life; internal copper embedded pipes circulate water to achieve efficient cooling, and the E-type design increases the heat exchange area and improves cooling efficiency; sixteen E-type components are fixed to the steel frame with high-strength bolts and spliced ​​into a regular hexagonal cylinder, resulting in a stable structure, good sealing, and easy installation and maintenance; the water-cooled component assembly of the water-cooled wall is arranged in three layers with heights of 680mm, 868mm, and 1070mm, respectively, to match different heat loads at different heights and achieve differentiated efficient cooling; the bottom layer is connected to the original sawtooth-shaped water-cooled component, and the top layer is fixed to the steel enclosure and hanging beam, ensuring a stable overall structure that allows for thermal expansion and contraction displacement and avoids stress concentration. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the water-cooled component assembly of this utility model.

[0014] Figure 2 This is a schematic diagram of the main structure of the E-type water-cooled component of this utility model.

[0015] Figure 3 This is a top view of the water-cooled component assembly of this utility model.

[0016] Figure 4 This is a top view of the structure of the E-type water-cooled component of this utility model.

[0017] Figure 5 This is a left-side structural schematic diagram of the water-cooled component assembly of this utility model.

[0018] Figure 6 This is a left-side structural schematic diagram of the E-type water-cooled component of this utility model.

[0019] Figure 7 This is a schematic diagram of the assembly structure of the water-cooled component assembly of this utility model.

[0020] Figure 8 This is a top view of the water-cooled component assembly of this utility model, which is assembled into a regular hexagonal cylindrical structure.

[0021] Attached image labels: Type E water-cooled component-1, horizontal tooth-11, vertical panel-12, steel frame-2, copper embedded pipe-3, refractory material-4, high-strength bolt-5. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Example 1: A water-cooled component for the reaction tower body of a copper flash smelting furnace, comprising an E-type water-cooled component 1 and a steel frame 2; the E-type water-cooled component 1 is composed of three layers of horizontal teeth 11 and vertical panels 12 forming an E-shaped structure, with two copper embedded pipes 3 pre-embedded in the horizontal teeth 11 and two copper embedded pipes 3 pre-embedded in the vertical panels 12, and the two ends of the copper embedded pipes 3 being connected to the factory's circulating water supply system respectively; the steel frame 2 is fixedly connected to the E-type water-cooled component 1 by high-strength bolts 5 to form a water-cooled component assembly, there are three water-cooled component assemblies, each as a layer, the three layers are connected from bottom to top by high-strength bolts to form a complete water-cooled wall structure.

[0024] In use, the three-layer water-cooled component assembly is installed sequentially inside the reactor tower of the flash smelting furnace. Each layer of the water-cooled component assembly is fixedly connected using high-strength bolts 5 and connected to the circulating water system. During production, when high-temperature flue gas passes through the reactor tower, the E-type water-cooled component 1 is efficiently cooled through pre-embedded copper pipes 3. The cooling water continuously circulates, carrying away heat and maintaining the working temperature of the water-cooled component. This structure can withstand high feed rates, high oxygen concentrations, and high heat loads, resulting in more uniform slag adhesion on the reactor tower wall. No overheating of the tower wall occurs during operation, making furnace operation safer and more stable, improving the effective volume utilization of the furnace, and effectively improving slag-copper separation. Due to the reduced heat load and optimized cooling, the service life of the middle and lower layers of water-cooled components is significantly extended, and production efficiency is improved without changing the furnace dimensions, fundamentally solving the problem of overheating of the reactor tower wall in the flash smelting furnace.

[0025] Example 2: Unlike Example 1, refractory material 4 is embedded between the three horizontal teeth of the E-type water-cooled component 1 to resist the direct erosion of high-temperature flue gas. In use, circulating water continuously cools the water-cooled component through copper embedded pipes 3. The refractory material layer 4 effectively protects the water-cooled component from high-temperature corrosion. Simultaneously, the E-type structure design increases the contact area between the water-cooled component and the flue gas, improving cooling efficiency.

[0026] The water-cooled component assembly includes a steel frame 2 and sixteen E-shaped water-cooled components 1. Each E-shaped water-cooled component 1 is fixed to the steel frame 2 by high-strength bolts 5, and its two ends are respectively connected to the ends of another E-shaped water-cooled component 1, so that the sixteen components are spliced ​​into a regular hexagonal cylindrical structure. The diameter of the assembled water-cooled component assembly can be adjusted according to the inner diameter of the actual reaction tower cylinder, and this diameter is the diameter of the steel frame 2. For example, for a flash furnace reaction tower with an inner diameter of 5000mm, sixteen water-cooled component assemblies are selected to form a regular hexagonal cylindrical structure with a diameter of 5000mm, which has a good cooling effect. This splicing method ensures the overall strength and sealing of the reaction tower cylinder. Each water-cooled component assembly is fixedly connected by high-strength bolts 5, which is convenient for installation and disassembly, and facilitates later maintenance and replacement.

[0027] In the water-cooled wall, the height of each layer of water-cooled component assembly varies. From bottom to top, the first layer is 680mm high, the second layer is 868mm high, and the third layer is 1070mm high. The steel frame 2 between the layers is fixedly connected by high-strength bolts 5. The layered design allows for targeted cooling based on the heat load differences in different height areas of the reaction tower. For example, since the first layer is at a lower height, it can be configured with a higher cooling water flow rate compared to the second and third layers, achieving faster and more effective cooling and ensuring the cooling effect.

[0028] The bottom of the steel frame 2 of the first-layer water-cooled component assembly is uniformly provided with several high-strength bolts 5; the top of the steel frame 2 of the third-layer water-cooled component assembly is also uniformly provided with several high-strength bolts 5. In use, the bottom of the steel frame 2 of the first-layer water-cooled component assembly is connected to the original serrated water-cooled component below the cylinder by high-strength bolts 5, and the top of the steel frame 2 of the third-layer water-cooled component assembly is connected and fixed to the steel cladding plate of the cylinder by high-strength bolts 5, and is suspended and fixed by the top hanging beam. This ensures the stability of the overall structure and allows the water-cooled component to have a certain displacement space during thermal expansion and contraction, avoiding stress concentration.

[0029] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A copper flash smelting reactor shaft vessel water cooled element characterized in that: It includes an E-type water-cooled component (1) and a steel frame (2); the E-type water-cooled component (1) is composed of three layers of horizontal teeth (11) and a vertical panel (12) forming an E-shaped structure. Two copper embedded pipes (3) are pre-embedded in the horizontal teeth (11) and two copper embedded pipes (3) are pre-embedded in the vertical panel (12). The two ends of the copper embedded pipes (3) are respectively connected to the factory's circulating water supply system; the steel frame (2) is fixedly connected to the E-type water-cooled component (1) by high-strength bolts (5) to form a water-cooled component assembly. There are three water-cooled component assemblies, each of which is a layer. The three layers are connected from bottom to top by high-strength bolts to form a complete water-cooled wall structure.

2. A water cooled component of a copper flash smelting reactor vessel as claimed in claim 1, characterized in that: The three horizontal teeth of the E-type water-cooled component (1) are inlaid with refractory material (4) to resist the direct scouring of high-temperature flue gas.

3. A water cooled component of a copper flash converting reactor shaft as claimed in either of claims 1 or 2, characterised in that: The water-cooled component assembly includes a steel frame (2) and sixteen E-shaped water-cooled components (1). Each E-shaped water-cooled component (1) is fixed to the steel frame (2) by high-strength bolts (5), and its two ends are respectively connected to the ends of another E-shaped water-cooled component (1), so that the sixteen components are spliced ​​into a regular hexagonal cylindrical structure.

4. A water cooled component of a copper flash smelting vessel reaction shaft as claimed in claim 1, characterized in that: In the water-cooled wall, the height of each layer of water-cooled component assembly is different. From bottom to top, the first layer is 680mm high, the second layer is 868mm high, and the third layer is 1070mm high. The steel frame (2) between the layers is fixedly connected by high-strength bolts (5).

5. A water cooled component of a copper flash smelting vessel reaction shaft as claimed in claim 1, characterized in that: The bottom of the steel frame (2) of the first layer water-cooled component assembly is uniformly provided with several high-strength bolts (5); the top of the steel frame (2) of the third layer water-cooled component assembly is uniformly provided with several high-strength bolts (5).

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