Water-cooling protection device of metallurgical furnace

Abstract

The utility model relates to the technical field of water cooling protection, in particular to a water cooling protection device of a metallurgical furnace, which comprises a first connecting pipe, water cooling towers are arranged at two ends of the first connecting pipe, a leading-in pipe and a leading-out pipe are respectively arranged at one ends of the two water cooling towers, and connecting structures are arranged at one ends, far away from the water cooling towers, of the leading-out pipe and the leading-in pipe. Wherein an emergency cooling structure is installed at one end of one connecting structure and comprises a fixing pipe, a first electromagnetic valve, a water pump and a limiting structure, the first electromagnetic valve is installed at one end of the fixing pipe, the water pump is installed at the end, away from the first electromagnetic valve, of the fixing pipe, and the limiting structure is installed on the outer surface of the water pump; the connecting structure comprises a second electromagnetic valve, a flow guide pipe, a supporting pipe and a second connecting pipe. The flow guide pipe is fixedly connected to one end of the outer surface of the second electromagnetic valve in a penetrating mode. According to the utility model, the temperature of the pipeline and the furnace body can be quickly reduced, and the thermal stress concentration and possible damage can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of water cooling protection, and in particular relates to a water cooling protection device for a metallurgical furnace. Background Art

[0002] A metallurgical furnace is an industrial furnace that performs thermal processing on materials. Thermal processing is characterized by the heating of materials or workpieces, and includes processes such as roasting, smelting, heating, heat treatment, and drying. During the operation of a metallurgical furnace, a large amount of heat is generated, especially when the refractory material of the furnace lining is eroded, corroded, and subjected to thermal stress by the high-temperature melt. Therefore, a water-cooling protection device is required to protect it.

[0003] During use, the existing water-cooling protection device mainly uses a cooling tower system to effectively cool down the metallurgical furnace to ensure the stability and safety of the production process. However, when the water temperature inside the cooling tower rises abnormally or its water storage capacity decreases significantly, it will directly affect the cooling effect of the metallurgical furnace. In this case, the metallurgical furnace faces the risk of overheating due to the inability to effectively dissipate heat, which may cause equipment damage, affecting not only production efficiency and product quality, but also greatly reducing the operational safety and reliability of the metallurgical furnace. Utility Model Content

[0004] The purpose of the utility model is to provide a water-cooling protection device for a metallurgical furnace to solve the problems raised in the above background technology.

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

[0006] A water-cooling protection device for a metallurgical furnace, comprising:

[0007] a first connecting pipe;

[0008] Cooling towers are installed at both ends of the first connecting pipe, an inlet pipe and an outlet pipe are installed at one end of each of the two cooling towers, and a connecting structure is installed at the end of the outlet pipe and the inlet pipe away from the cooling tower, and an emergency cooling structure is installed at one end of one of the connecting structures;

[0009] The emergency cooling structure includes a fixed pipe, a first solenoid valve, a water pump and a limiting structure, wherein the first solenoid valve is installed at one end of the fixed pipe, the water pump is installed at the end of the fixed pipe away from the first solenoid valve, the limiting structure is installed on the outer surface of the water pump, and the end of the first solenoid valve away from the fixed pipe is installed together with the connecting structure;

[0010] The connecting structure includes a second solenoid valve, a flow guide tube, a support tube and a second connecting tube. The flow guide tube is fixedly inserted and connected to one end of the outer surface of the second solenoid valve. The support tube is installed at one end of the second solenoid valve. The second connecting tube is installed at the end of the support tube away from the second solenoid valve. The second solenoid valve is installed together with the inlet tube.

[0011] Preferably, one end of the other connection structure is fixedly connected to an output pipe.

[0012] Preferably, the limiting structure includes a floating ring and a filter tank, the filter tank is fixedly connected to the bottom end of the floating ring, the top of the fixed tube is fixedly connected with multiple screws at equal distances, the outer surface of the screw is threadedly connected with two fastening nuts, and the floating ring is movably connected to the water pump.

[0013] Preferably, the screws are movably connected to the water pump.

[0014] Preferably, a temperature sensor and a flow rate sensor are respectively installed on the outer surfaces of both sides of the top end of the second connecting pipe.

[0015] Preferably, one end of the flow guide tube away from the second solenoid valve is fixedly connected to the output tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) By arranging a second solenoid valve, a support pipe, a second connecting pipe, a temperature sensor, a flow rate sensor, a fixed pipe, a first solenoid valve, a water pump and a limit structure, the limit structure and the water pump are placed in a water well. When the first solenoid valve is started, the water pump guides the water in the water well into the water pump, and then guides it into the first solenoid valve through the fixed pipe, and then guides it into the water pipe of the furnace body through the support pipe and the second connecting pipe, so as to replace the original higher temperature water in the pipe, which helps to quickly reduce the temperature of the pipe and the furnace body, and prevent thermal stress concentration and possible damage.

[0018] (2) By setting a floating ring, a filter tank, a screw and a fastening nut, when the water pump draws water from the well, the floating ring is used to make the water pump float on the upper layer of the well water, and can be raised and lowered according to the water level. The impurities are intercepted by the filter tank to prevent impurities from entering the pipeline and causing pipeline blockage. When it is necessary to clean the impurities, the upper fastening nut is removed and the screw is separated from the water pump, so that the floating ring and the water pump can be disassembled, which is convenient for cleaning the filter tank and avoids the accumulation of impurities affecting the water flow efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2This is a three-dimensional diagram of the emergency cooling structure of the utility model;

[0021] Figure 3 It is a three-dimensional diagram of the limiting structure of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the connection structure of the utility model;

[0023] In the figure: 1. First connecting pipe; 2. Cooling tower; 3. Inlet pipe; 4. Outlet pipe; 5. Connection structure; 6. Output pipe; 7. Emergency cooling structure; 71. Fixed pipe; 72. First solenoid valve; 73. Water pump; 74. Limiting structure; 741. Floating ring; 742. Filter tank; 743. Screw; 744. Fastening nut; 51. Second solenoid valve; 52. Flow guide pipe; 53. Support pipe; 54. Second connecting pipe; 55. Temperature sensor; 56. Flow rate sensor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1:

[0026] See also Figure 1 - Figure 4 As shown, a water-cooling protection device for a metallurgical furnace comprises:

[0027] First connecting pipe 1;

[0028] Cooling towers 2 are installed at both ends of the first connecting pipe 1. An inlet pipe 3 and an outlet pipe 4 are installed at one end of each of the two cooling towers 2. A connecting structure 5 is installed at the end of the outlet pipe 4 and the inlet pipe 3 away from the cooling tower 2. An emergency cooling structure 7 is installed at one end of one of the connecting structures 5.

[0029] The emergency cooling structure 7 includes a fixed pipe 71, a first solenoid valve 72, a water pump 73, and a limiting structure 74. The first solenoid valve 72 is mounted on one end of the fixed pipe 71, the water pump 73 is mounted on the end of the fixed pipe 71 away from the first solenoid valve 72, the limiting structure 74 is mounted on the outer surface of the water pump 73, and the end of the first solenoid valve 72 away from the fixed pipe 71 is mounted together with the connecting structure 5.

[0030] The connecting structure 5 includes a second solenoid valve 51, a flow guide tube 52, a support tube 53, and a second connecting tube 54. The flow guide tube 52 is fixedly connected to one end of the outer surface of the second solenoid valve 51. The support tube 53 is installed at one end of the second solenoid valve 51. The second connecting tube 54 is installed at the end of the support tube 53 away from the second solenoid valve 51. The second solenoid valve 51 is installed together with the inlet tube 3.

[0031] One end of the other connecting structure 5 is fixedly connected to an output pipe 6 .

[0032] Depend on Figure 2 and Figure 3 It can be seen that the limiting structure 74 includes a floating ring 741 and a filter tank 742. The filter tank 742 is fixedly connected to the bottom end of the floating ring 741. The top of the fixed tube 71 is evenly fixedly connected with multiple screws 743. The outer surface of the screw 743 is threadedly connected to two fastening nuts 744. The floating ring 741 and the water pump 73 are movably connected together.

[0033] As can be seen from the above, the limiting structure 74 and the water pump 73 are placed in the water well. When the first solenoid valve 72 is started, the water pump 73 introduces the water in the water well into the water pump 73, and introduces it into the first solenoid valve 72 through the fixed pipe 71 fixedly connected to it. The well water is introduced into the second solenoid valve 51 through the first solenoid valve 72, and is introduced into the furnace water pipe through the support pipe 53 and the second connecting pipe 54 to replace the original higher temperature water in the pipe.

[0034] Preferably, the screw rods 743 are movably connected to the water pump 73 .

[0035] As can be seen from the above, the installation of the water pump 73 is facilitated by providing the screw 743 and the fastening nut 744 .

[0036] Example 2:

[0037] refer to Figure 4 As shown, a temperature sensor 55 and a flow rate sensor 56 are respectively installed on the outer surfaces of both sides of the top end of the second connecting pipe 54.

[0038] As can be seen from the above, the inlet pipe 3 introduces the low-temperature water in the cooling tower 2 into the second solenoid valve 51 of one of the connecting structures 5, and then introduces it into the support pipe 53 installed with it through the second solenoid valve 51. The support pipe 53 introduces the low-temperature water into the furnace body water pipe through the second connecting pipe 54. The low-temperature water enters the furnace body water pipe, absorbs the heat in the furnace, and increases the temperature of the water in the pipe. The high-temperature water is introduced into the second connecting pipe 54 on another connecting structure 5, and then introduced into the cooling tower 2 by the support pipe 53, the second solenoid valve 51 and the outlet pipe 4 to reduce the water temperature. The high-temperature water that has been cooled once is introduced into the next cooling tower 2 through the first connecting pipe 1 for cooling. The cooled water then enters the furnace through the connecting structure 5, thereby effectively reducing the temperature in the furnace. The device is located outside the refractory material in the furnace and is not affected by the molten metal.

[0039] Preferably, one end of the flow guide tube 52 away from the second solenoid valve 51 is fixedly connected to the output tube 6 .

[0040] As can be seen from the above, by connecting the output pipe 6 and the guide pipe 52 together, the discharge of high-temperature water is facilitated.

[0041] Furthermore, the present design is applied to the cooling protection of the metallurgical furnace during operation. The second connecting pipes 54 of the two connecting structures 5 are installed at one end away from the support pipe 53 and are respectively installed at the inlet and outlet of the furnace water pipe of the metallurgical furnace. By setting the temperature sensor 55 and the flow rate sensor 56, the operating status of the water cooling device can be accurately captured. The inlet pipe 3 guides the low-temperature water in the cooling tower 2 into the second solenoid valve 51 of one of the connecting structures 5, and then guides it into the support pipe 53 installed therewith through the second solenoid valve 51. The support pipe 53 guides the low-temperature water into the furnace water pipe through the second connecting pipe 54. The low-temperature water enters the furnace water pipe, absorbs the heat in the furnace, and increases the temperature of the water in the pipe. The high-temperature water is guided into the second connecting pipe 54 on the other connecting structure 5, and then guided into the cooling tower 2 by the support pipe 53, the second solenoid valve 51 and the outlet pipe 4 to reduce the water temperature. In order to further improve the cooling effect, this part of the preliminarily cooled water will also flow through the first connecting pipe 1 into the next cooling tower 2 for deep cooling, forming a closed-loop circulation.

[0042] When the water is in circulation, it is monitored in real time by the temperature sensor 55 and the flow rate sensor 56. The data from the temperature sensor 55 and the flow rate sensor 56 are imported into the control box for real-time processing and analysis. Once the water temperature or flow rate of the water cooling system exceeds the preset safety range, the control box will automatically cut off the heating power supply of the metallurgical furnace to prevent the furnace temperature from rising further, thereby protecting the furnace body from overheating damage. At the same time, the second solenoid valve 51 is activated to change the direction of the water flow, and the first solenoid valve 72 is opened.

[0043] The limiting structure 74 and the water pump 73 are placed in the water well. When the first solenoid valve 72 is activated, the water pump 73 guides the water in the water well into the water pump 73 and then into the first solenoid valve 72 through the fixed pipe 71 fixedly connected thereto. The well water is then guided into the second solenoid valve 51 through the first solenoid valve 72 and then into the furnace water pipe through the support pipe 53 and the second connecting pipe 54, replacing the original higher temperature water in the pipe. This process helps to quickly reduce the temperature of the pipe and the furnace, preventing thermal stress concentration and possible damage. The original higher temperature water is then guided into the output pipe 6 through another connecting structure 5 and then discharged through the output pipe 6.

[0044] When the water pump 73 draws water from the well, the floating ring 741 is used to make the water pump 73 float on the upper layer of the well water. It can be raised and lowered according to the water level. The impurities are intercepted by the filter tank 742 to prevent the impurities from entering the pipeline and causing blockage of the pipeline. When it is necessary to clean the impurities, the upper fastening nut 744 is removed and the screw 743 is separated from the water pump 73, so that the floating ring 741 and the water pump 73 can be disassembled, making it easier to clean the filter tank 742.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-cooling protection device for a metallurgical furnace, characterized in that: include: A first connecting pipe (1); Cooling towers (2) are installed at both ends of the first connecting pipe (1), an inlet pipe (3) and an outlet pipe (4) are installed at one end of each of the two cooling towers (2), and a connecting structure (5) is installed at one end of the outlet pipe (4) and the inlet pipe (3) away from the cooling tower (2), and an emergency cooling structure (7) is installed at one end of one of the connecting structures (5); The emergency cooling structure (7) comprises a fixed pipe (71), a first solenoid valve (72), a water pump (73) and a limiting structure (74), wherein the first solenoid valve (72) is mounted on one end of the fixed pipe (71), the water pump (73) is mounted on one end of the fixed pipe (71) away from the first solenoid valve (72), the limiting structure (74) is mounted on the outer surface of the water pump (73), and the end of the first solenoid valve (72) away from the fixed pipe (71) is mounted together with the connecting structure (5); The connection structure (5) comprises a second solenoid valve (51), a flow guide tube (52), a support tube (53) and a second connecting tube (54); the flow guide tube (52) is fixedly inserted and connected to one end of the outer surface of the second solenoid valve (51); the support tube (53) is installed at one end of the second solenoid valve (51); the second connecting tube (54) is installed at one end of the support tube (53) away from the second solenoid valve (51); and the second solenoid valve (51) is installed together with the introduction tube (3).

2. The water-cooling protection device for a metallurgical furnace according to claim 1, characterized in that: One end of the other connecting structure (5) is fixedly connected to an output pipe (6).

3. The water-cooling protection device for a metallurgical furnace according to claim 1, characterized in that: The limiting structure (74) comprises a floating ring (741) and a filter tank (742); the filter tank (742) is fixedly connected to the bottom end of the floating ring (741); a plurality of screw rods (743) are fixedly connected at equal distances to the top end of the fixed tube (71); the outer surfaces of the screw rods (743) are threadedly connected to two fastening nuts (744); and the floating ring (741) and the water pump (73) are movably connected together.

4. The water-cooling protection device for a metallurgical furnace according to claim 3, characterized in that: The screw rods (743) are movably connected to the water pump (73).

5. The water-cooling protection device for a metallurgical furnace according to claim 1, characterized in that: A temperature sensor (55) and a flow rate sensor (56) are respectively installed on the outer surfaces of both sides of the top end of the second connecting pipe (54).

6. The water-cooling protection device for a metallurgical furnace according to claim 1, characterized in that: One end of the flow guide tube (52) away from the second solenoid valve (51) is fixedly connected to the output tube (6).

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