Temperature-control security molten steel jacket for oxygen-enriched side-blown converter
By adding a cleaning port and designing a detachable valve cover structure under the temperature-controlled and safe and secure steel water jacket of the oxygen-rich side blower, the problem of impurities accumulation inside the water jacket is solved, and the safe and reliable use of the water jacket is achieved, and safety hazards are eliminated.
Patent Information
- Application Number
- CN202422238810.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing oxygen-rich side blower temperature-controlled security steel water jacket lacks a sewage cleaning port design, resulting in the accumulation of impurities inside the water jacket, the volume is reduced, it is easy to dry burn and lead to water leakage, posing a safety hazard.
A cleaning port is added on both sides of the temperature-controlled and secured steel water jacket, and a detachable valve cover structure is designed to facilitate impurities cleaning, and combining the inner lining plate and reinforcement structure to improve the strength and stability of the shell connection.
The regular cleaning of impurities inside the water jacket is achieved, which avoids dry burning, ensures the normal use and safety of the water jacket, reduces the risk of water leakage, and improves the reliability and safety of use.
Smart Images
Figure CN223243353U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of secondary lead smelting, and particularly relates to a temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blowing furnace. Background Art
[0002] The temperature-controlled, safety-maintaining steel jacket in an oxygen-enriched, side-blown furnace used for smelting recycled lead is a rectangular steel structure. The inner jacket, located inside the furnace, protects against slagging, while the outer jacket, located outside, provides cooling and protection. Cooling water enters through an inlet in the middle of the jacket's lower side and exits through an outlet in the middle of its upper side. During long-term circulation, impurities accumulate within the jacket and deposit on the jacket's inner underside. Existing temperature-controlled, safety-maintaining steel jackets lack a drain port, making it difficult to clean these impurities. Over time, the jacket's internal volume decreases, and without cooling water flowing through its lower side, the jacket burns dry. When the jacket burns through, it leaks, which then enters the furnace, generating steam and increasing pressure, potentially leading to explosions. Therefore, there is an urgent need to improve the existing temperature-controlled, safety-maintaining steel jacket structure for oxygen-enriched, side-blown furnaces. The addition of a drain port facilitates the regular removal of impurities within the jacket, ensuring proper operation and eliminating safety hazards. Utility Model Content
[0003] In view of the deficiencies in the background technology, the utility model provides a temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace, and additional cleaning ports are provided on both sides below the temperature-controlled and safe molten steel jacket to facilitate regular cleaning of impurities inside the jacket, thereby ensuring the normal use of the temperature-controlled and safe molten steel jacket and eliminating safety hazards.
[0004] To achieve the above objectives, the technical solutions of this utility model are as follows:
[0005] A temperature-controlled and safety molten steel jacket for an oxygen-enriched side-blown furnace is characterized in that it includes a shell, the shell is a hollow rectangular structure, and one side of the shell is provided with a water inlet, a water outlet and two sewage outlets, the water inlet is located in the middle of the lower side of the shell, the water outlet is located in the middle of the upper side of the shell, the two sewage outlets are symmetrically distributed at the bottom corners of the shell on both sides of the water inlet, and each of the sewage outlets is detachably connected to a valve cover.
[0006] Preferably, the valve cover includes a positioning member, a cover plate, a screw and a nut. The cover plate is located inside the shell and its outer diameter is larger than the inner diameter of the sewage outlet. One end of the screw is connected to the cover plate, and the other end passes through the positioning member and is threadedly connected to the nut. The positioning member is located outside the sewage outlet and conflicts with the outer wall of the shell.
[0007] Preferably, the sewage outlet is elliptical, and the cover plate is a stepped structure that matches the size and shape of the sewage outlet.
[0008] Preferably, a sealing gasket is provided on the stepped surface of the cover plate, and the sealing gasket contacts the inner wall of the shell.
[0009] Preferably, the shell is connected and surrounded by an inner lining plate, an outer shell plate, two side plates and two wing plates. The inner lining plate and the outer shell plate are arranged opposite and parallel to each other. The two wing plates are respectively located at the upper and lower ends of the outer shell plate, and the two side plates are respectively located at the left and right sides of the outer shell plate. A plurality of reinforcing ribs are connected between the outer shell plate and the inner lining plate.
[0010] Preferably, each of the reinforcing ribs passes through an assembly hole provided on the outer shell plate and extends to the outside of the outer shell plate to form a convex point.
[0011] Preferably, each of the wing panels and side panels extends toward a side away from the inner lining panel, and a mounting hole is provided in the extended portion.
[0012] Preferably, the inner lining plate and the two side plates are an integrated structure.
[0013] Preferably, the other side of the shell is connected to a rectangular frame having the same shape and size as the shell, and each side of the rectangular frame away from the side of the shell is bent toward the middle of the rectangular frame to form a bent portion.
[0014] Preferably, a plurality of groups of positioning ribs are provided in parallel on a surface of one side of the shell close to the rectangular frame, and each two adjacent groups of positioning ribs are staggered and spaced apart.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] (1) The utility model adds two cleaning ports at the bottom corners of the shell on both sides of the water inlet, which facilitates the cleaning of impurities accumulated in the water jacket for a long time and ensures the normal use and safety of the temperature-controlled steel water jacket;
[0017] (2) The valve cover structure of the utility model is novel and reasonable in design, which can effectively seal the cooling water and can be freely disassembled and assembled when necessary, making it easy to use;
[0018] (3) The inner lining plate and the two side plates of the present invention are an integrated structure, and reinforcing ribs are provided inside the shell, which can effectively ensure the connection strength and structural stability of the shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.
[0020] Figure 1 This is a schematic diagram of the external side structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the inner side structure of the utility model;
[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;
[0023] Figure 4 This is a schematic diagram of the connection structure between the valve cover and the outer shell plate of the utility model;
[0024] In the figure: 1, water inlet, 2, water outlet, 3, sewage outlet, 4, valve cover, 401, positioning piece, 402, cover plate, 403, screw, 404, nut, 5, sealing gasket, 6, lining plate, 7, outer shell plate, 8, side plate, 9, wing plate, 10, reinforcing rib, 1001, protrusion, 11, assembly hole, 12, mounting hole, 13, rectangular frame, 1301, bending part, 14, positioning rib. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0026] In the description of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0027] In this utility model, unless otherwise specified or limited, the terms "disposed," "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed or detachable connections, mechanical connections, direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.
[0028] like Figure 1As shown, a temperature-controlled and safety-preventive steel jacket for an oxygen-enriched side-blown furnace includes a shell. The shell is a hollow rectangular parallelepiped structure. The outer side of the shell (located outside the smelting furnace during use) is provided with a water inlet 1, a water outlet 2, and two sewage outlets 3. The water inlet is located in the middle of the lower side of the shell, and the water outlet is located in the middle of the upper side of the shell. The water inlet is connected to cooling water via a flange, so that cooling water flows in from the lower part of the shell and flows out from the upper part of the shell, forming a circulation to achieve the purpose of temperature reduction protection. The two sewage outlets are symmetrically distributed at the bottom corners of the shell on both sides of the water inlet, which can effectively prevent dead corners on both sides of the shell bottom. Each sewage outlet is detachably connected to a valve cover 4. When regular maintenance and sewage treatment is required, the cooling water supply is stopped and the valve cover is opened to discharge impurities inside the shell, ensuring the normal use of the temperature-controlled and safety-preventive steel jacket.
[0029] Combine Figures 1 to 3 As shown, the shell is connected and surrounded by an inner lining plate 6, an outer shell plate 7, two side plates 8 and two wing plates 9. The inner lining plate and the outer shell plate are opposite and parallel to each other. The two wing plates are respectively located at the upper and lower ends of the outer shell plate, and the two side plates are respectively located at the left and right sides of the outer shell plate. The inner lining plate and the two side plates are an integrated structure, that is, the two side plates are formed by bending the two sides of the inner lining plate, which effectively ensures the connection strength, reduces welding points, and reduces the risk of water leakage. A plurality of reinforcing ribs 10 are connected between the outer shell plate and the inner lining plate, which can effectively enhance the structural stability between the outer shell plate and the inner lining plate. Each reinforcing rib passes through the assembly hole 11 provided on the outer shell plate and extends to the outside of the outer shell plate to form a protrusion 1001. When assembling the shell, first bend both sides of the inner lining plate 90° to form two side plates. Then, weld one end of the reinforcing rib to the surface of the inner lining plate. Insert the outer shell plate with assembly holes over each reinforcing rib. Weld the connection between the reinforcing rib and the assembly hole and around the protrusions to ensure the strength and stability of the connection. Finally, weld the two wing plates to the inner lining plate, outer shell plate, and two side plates respectively. Since the temperature-control safety molten steel jacket is stacked layer by layer on the outer periphery of the furnace body during use, in order to facilitate the installation and fixation of the temperature-control safety molten steel jacket, each wing plate and side plate extends away from the inner lining plate, and the extended portion is provided with a mounting hole 12 to facilitate bolt assembly and connection.
[0030] Combine Figure 1 、 Figure 3 and Figure 4As shown, the valve cover includes a positioning member 401, a cover plate 402, a screw 403 and a nut 404. The cover plate is located inside the shell and its outer diameter is larger than the inner diameter of the sewage outlet. One end of the screw is connected to the cover plate, and the other end passes through the positioning member and is threadedly connected to the nut. The positioning member is located outside the sewage outlet and conflicts with the outer wall of the shell. When the nut is tightened, the positioning member and the cover plate can clamp the outer shell plate at the sewage outlet to achieve the tightening of the cover plate. In order to facilitate the disassembly and assembly of the cover plate, the sewage outlet is elliptical, and the cover plate is a stepped structure that matches the size and shape of the sewage outlet. After removing the nut, the fixing member can be removed from the screw first, and then one end of the screw can be rotated and flipped to remove the cover plate from the sewage outlet (taking advantage of the different lengths of the long radius and short radius of the ellipse); when installing, first insert the long axis end of the cover plate into the sewage outlet, and then flip and rotate it. The stepped surface of the cover is provided with a sealing washer 5. When the nut is tightened, the sealing washer contacts the inner wall of the housing to achieve the purpose of sealing and prevent water leakage and seepage. The sealing washer is made of high temperature resistant material and can be replaced in time as needed.
[0031] like Figure 2 and Figure 3 As shown, a rectangular frame 13 of the same shape and size is connected to the side of the inner liner facing away from the outer shell. Each side of the rectangular frame, facing away from the inner liner, bends toward the center of the frame to form a bent portion 1301, creating a refractory material storage cavity. During normal operation, the rectangular frame is located within the furnace, and the storage cavity is filled with refractory material (steel fiber refractory castable), effectively protecting the water jacket. To ensure the accumulation and stability of the refractory material, multiple sets of positioning ribs 14 are parallel to the surface of the inner liner facing the rectangular frame, with adjacent sets of ribs staggered and spaced apart.
[0032] The method of using this utility model is as follows:
[0033] like Figures 1 to 4 As shown, several temperature-controlled safety steel jackets for a secondary lead smelting furnace according to the present invention are stacked in sequence on the outside of the furnace body and connected by bolts. The water inlet 1 of each temperature-controlled safety steel jacket is connected to an external water source. Cooling water flows in through the water inlet 1 at the bottom of the shell and flows out through the water outlet 2 at the top of the shell, achieving a circulation and cooling protection purpose. After a period of use, when it is necessary to clean impurities inside the shell, the cooling water supply is stopped, the nut 404 is removed, the positioning member 401 is removed, and the cover plate 402 is removed from the drain port 3 by rotating and flipping. The impurities inside the shell are cleaned using auxiliary tools, and then the cover plate 402, positioning member 401, and nut 404 are installed and locked.
[0034] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.
Claims
1. A temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace, characterized in that: It includes a shell, which is a hollow rectangular structure and has a water inlet, a water outlet and two sewage outlets on one side. The water inlet is located in the middle of the lower side of the shell, and the water outlet is located in the middle of the upper side of the shell. The two sewage outlets are symmetrically distributed at the bottom corners of the shell on both sides of the water inlet, and each of the sewage outlets is detachably connected to a valve cover.
2. The temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace according to claim 1, characterized in that: The valve cover includes a positioning piece, a cover plate, a screw and a nut. The cover plate is located inside the shell and its outer diameter is larger than the inner diameter of the sewage outlet. One end of the screw is connected to the cover plate, and the other end passes through the positioning piece and is threadedly connected to the nut. The positioning piece is located outside the sewage outlet and conflicts with the outer wall of the shell.
3. The temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace according to claim 2, characterized in that: The sewage outlet is elliptical, and the cover plate is a stepped structure that matches the size and shape of the sewage outlet.
4. The temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace as claimed in claim 3, characterized in that: A sealing gasket is provided on the stepped surface of the cover plate, and the sealing gasket contacts the inner wall of the shell.
5. The temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace according to claim 1, characterized in that: The shell is formed by connecting an inner lining plate, an outer shell plate, two side plates and two wing plates. The inner lining plate and the outer shell plate are arranged opposite and parallel to each other. The two wing plates are respectively located at the upper and lower ends of the outer shell plate, and the two side plates are respectively located at the left and right sides of the outer shell plate. A plurality of reinforcing ribs are connected between the outer shell plate and the inner lining plate.
6. The temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace according to claim 5, characterized in that: Each of the reinforcing ribs passes through an assembly hole provided on the outer shell plate and extends to the outside of the outer shell plate to form a convex point.
7. The temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace according to claim 5, characterized in that: Each of the wing plates and side plates extends toward a side away from the inner lining plate, and a mounting hole is provided on the extended portion.
8. The temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace according to claim 5, characterized in that: The inner lining plate and the two side plates are an integrated structure.
9. The temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace according to claim 1, characterized in that: The other side of the shell is connected to a rectangular frame with the same shape and size as the shell, and each side of the rectangular frame away from the shell is bent toward the middle of the rectangular frame to form a bent portion.
10. The temperature-controlled and safe molten steel jacket for an oxygen-enriched side-blown furnace according to claim 9, characterized in that: A plurality of groups of positioning ribs are arranged in parallel on one side surface of the shell body close to the rectangular frame, and each two adjacent groups of positioning ribs are staggered and spaced apart.