Anti-aluminum-leakage monitoring and alarming device for fixed furnace eye in deep well casting

Abstract

The utility model discloses a deep well casting fixed furnace eye aluminum leakage prevention monitoring alarm device which comprises a thermocouple and an alarm displayer, the thermocouple and the alarm displayer are connected through a signal line, the thermocouple is erected on the left side of a fixed furnace eye opening, and a supporting strip is fixed to the top of a transverse base plate. A supporting sleeve is fixed on the surface of the top of the supporting strip, an inclined insertion hole corresponding to the thermocouple is formed in the surface of the supporting sleeve, the thermocouple penetrates through the inclined insertion hole, and a limiting structure is arranged between the supporting sleeve and the thermocouple; according to the utility model, by improving the deep well casting fixed furnace eye aluminum leakage prevention monitoring alarm device in the prior art and designing the limiting structure between the supporting sleeve and the thermocouple, the installation stability of the thermocouple can be effectively improved, the subsequent use stability of the thermocouple is ensured, the thermocouple is prevented from shifting in the use process, and the service life of the thermocouple is prolonged. The overall monitoring stability and the use stability of the device are ensured, and meanwhile, the thermocouple is convenient to disassemble and assemble quickly.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum leakage prevention in a casting furnace eye, and in particular relates to a monitoring and alarm device for aluminum leakage prevention in a fixed furnace eye of a deep well casting. Background Art

[0002] When the fixed furnace eye is blocked, there is a risk of the plugging cap being squeezed and cracked. During the production process, when there is a large amount of molten aluminum in the furnace, the pressure increases. When alloys are added to the molten aluminum in the furnace, stirring, slagging, refining and other operations, there is a risk of accidentally touching the furnace eye cone head. If aluminum leakage is not discovered in time, it may cause the aluminum liquid to flow into the casting well and explode or overflow to the ground, causing high-temperature fires in nearby equipment and other uncertain accidents. The deep well casting fixed furnace eye anti-aluminum leakage monitoring and alarm device is a monitoring and alarm device composed of a thermocouple and an alarm display. The specific operation is to install a thermocouple at the 20cm position of the furnace eye for temperature detection. The temperature is set to 400℃ and interlocked with the alarm display. It can quickly and effectively detect the loosening of the furnace eye locking device and the cone head and plugging cap to leak aluminum, so as to quickly take disposal measures to prevent unsafe incidents caused by untimely detection of aluminum leakage, and prevent the failure to take disposal measures in time when there is an abnormality of aluminum leakage due to unmanned inspection or untimely inspection;

[0003] However, in actual use of the deep well casting fixed furnace eye aluminum leakage prevention monitoring and alarm device in the prior art, the thermocouple is directly placed in the casting fixed furnace eye through a support rod, and the overall installation stability is poor, which is prone to deviation and reduces the monitoring stability, thereby affecting the use stability of the monitoring and alarm device. For this reason, the utility model needs to improve and optimize the deep well casting fixed furnace eye aluminum leakage prevention monitoring and alarm device to ensure the installation stability and use stability of the device. Utility Model Content

[0004] The utility model aims to provide a deep well casting fixed furnace eye anti-leaking aluminum monitoring alarm device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deep well casting fixed furnace eye anti-aluminum escape monitoring alarm device, comprising a thermocouple and an alarm display, wherein the thermocouple and the alarm display are connected via a signal line, the thermocouple is mounted on the left side of the fixed furnace eye opening, the end of the thermocouple extends into the inner side of the fixed furnace eye opening, and a horizontal seat plate is fixed on the left side of the fixed furnace eye opening, a support bar is fixed on the top of the horizontal seat plate, a support sleeve is fixed on the top surface of the support bar, and an inclined jack corresponding to the thermocouple is opened on the surface of the support sleeve, the thermocouple passes through the inclined jack, and a limiting structure is provided between the support sleeve and the thermocouple;

[0006] The limiting structure includes an inner slide groove opened inside the top of the support sleeve, an inner slide block and a spring are arranged in the inner slide groove, a limiting clamping rod is fixed to the bottom of the inner slide block, an annular clamping groove corresponding to the limiting clamping rod is opened on the surface of the thermocouple, the bottom end of the limiting clamping rod passes through the annular clamping groove, two pull rods are symmetrically fixed to the top of the inner slide block, and the top ends of the two pull rods pass through the top of the support sleeve and are fixed with pull plates.

[0007] Preferably, two top holes communicating with the inner slide groove are formed on the top of the support sleeve, and the top holes correspond to the pull rod.

[0008] Preferably, a cylindrical groove is provided on the top surface of the inner sliding block, and the bottom end of the spring is inserted into the cylindrical groove.

[0009] Preferably, a support rod is fixed to the top surface of the cross seat plate on the left side relative to the support bar, and the alarm display is fixed to the top end of the support rod.

[0010] It also includes a positioning structure, which is arranged between the inclined jack and the thermocouple. The positioning structure includes a rubber seat, a positioning protrusion and a positioning groove. The rubber seat is embedded in the inner wall of the inclined jack. The top surface of the rubber seat is provided with a positioning protrusion. The surface of the thermocouple is provided with a positioning groove corresponding to the positioning protrusion. The top end of the positioning protrusion is squeezed into the positioning groove. The rubber seat and the positioning protrusion are an integrated structure, and an elliptical cavity is provided in the rubber seat.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model improves the prior art deep well casting fixed furnace eye anti-aluminum leakage monitoring and alarm device, and designs a limiting structure between the support sleeve and the thermocouple, which can effectively improve the installation stability of the thermocouple, ensure the subsequent use stability of the thermocouple, prevent the thermocouple from offset during use, ensure the overall monitoring stability and the use stability of the device, and make the thermocouple easy to disassemble and assemble quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the utility model;

[0013] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A area;

[0014] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle B area;

[0015] In the figure: 1. thermocouple; 11. positioning groove; 2. alarm display; 3. support bar; 4. support sleeve; 41. inclined socket; 42. rubber seat; 43. positioning protrusion; 5. support rod; 6. fixed furnace eye; 7. horizontal seat plate; 81. pull plate; 82. inner slide groove; 83. pull rod; 84. inner slide block; 85. spring; 86. limit clamp rod; 87. annular clamp groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example 1

[0018] See also Figure 1 and Figure 2 , which is the first embodiment of the utility model, and this embodiment provides a technical solution: a deep well casting fixed furnace eye anti-aluminum escape monitoring and alarm device, including a thermocouple 1 and an alarm display 2, the model of the thermocouple 1 is WRN-430, the thermocouple 1 and the alarm display 2 are connected by a signal line, the thermocouple 1 is set on the left side of the fixed furnace eye opening 6, the end of the thermocouple 1 extends into the inner side of the fixed furnace eye opening 6, and a horizontal seat plate 7 is welded and fixed on the left side of the fixed furnace eye opening 6, and a support bar 3 is welded and fixed on the top of the horizontal seat plate 7. In actual use, the thermocouple 1 can be set at the fixed furnace eye opening 6, and the alarm display 2 is set to set the detection alarm value to ≥400℃. When the thermocouple 1 detects that the temperature at the fixed furnace eye opening 6 reaches 40 When the temperature is 0℃, the alarm display 2 will be activated to alarm, which can facilitate the operation and maintenance personnel to quickly and effectively find the loosening and aluminum leakage of the locking device, cone head and plugging cap at the fixed furnace eye 6, so as to quickly take disposal measures to prevent unsafe incidents caused by untimely discovery of aluminum leakage, reduce the frequency of fixed inspections by personnel, and find abnormalities at the first time to deal with them on the spot, so as to achieve safety guarantee conditions for efficient production. After each blocking of the fixed furnace eye 6, a thermocouple 1 is placed, and an inspection is conducted once every 30 minutes. Each time an alarm is triggered, a quick investigation and confirmation is performed. A support sleeve 4 is welded and fixed to the top surface of the support bar 3, and an inclined socket 41 corresponding to the thermocouple 1 is opened on the surface of the support sleeve 4. The thermocouple 1 passes through the inclined socket 41, and a limit structure is provided between the support sleeve 4 and the thermocouple 1.

[0019] The limiting structure includes an inner slide groove 82 opened inside the top of the support sleeve 4, an inner slide block 84 and a spring 85 are arranged in the inner slide groove 82, a limiting clamp rod 86 is welded and fixed at the bottom of the inner slide block 84, and an annular clamp groove 87 corresponding to the limiting clamp rod 86 is opened on the surface of the thermocouple 1, and the bottom end of the limiting clamp rod 86 penetrates into the annular clamp groove 87, which can stably limit the thermocouple 1 and ensure the subsequent use stability of the thermocouple 1. Two pull rods 83 are symmetrically fixed on the top of the inner slide block 84, and the top ends of the two pull rods 83 penetrate to the top of the support sleeve 4 and are fixed with a pull plate 81, which can be subsequently pulled through the pull plate 81. Lift up the limit rod 86 to release the limit on the thermocouple 1 and realize the disassembly and assembly of the thermocouple 1. During installation, first lift the pull plate 81, so that the inner slider 84 moves up to compress the spring 85 until the bottom end of the limit rod 86 is pulled into the inner slide groove 82. At this time, the thermocouple 1 can be passed through the inclined socket 41 until the bottom end of the thermocouple 1 extends to the fixed furnace eye 6. At this time, release the pull plate 81, so that the spring 85 pushes the inner slider 84 back and the bottom end of the limit rod 86 is inserted into the annular groove 87, so that the stable installation of the thermocouple 1 can be completed and the stability during subsequent use can be guaranteed.

[0020] The top of the support sleeve 4 is provided with two top holes which are communicated with the inner slide groove 82 , and the top holes correspond to the pull rod 83 so as to allow the pull rod 83 to pass through smoothly.

[0021] Among them, a cylindrical groove is opened on the top surface of the inner sliding block 84, and the bottom end of the spring 85 is inserted into the cylindrical groove, so that the spring 85 can be limited to a certain extent to prevent position deviation.

[0022] A support rod 5 is welded and fixed to the top surface of the cross seat plate 7 on the left side of the support bar 3 , and the alarm display 2 is fixed to the top end of the support rod 5 by bolts, so that the alarm display 2 can be stably installed.

[0023] Example 2

[0024] See also Figures 1 to 3 , which is the second embodiment of the utility model, is based on the previous embodiment, and the difference is that the positioning structure can be provided to play an auxiliary positioning role when the thermocouple 1 is installed, thereby further improving the convenience of installation.

[0025] Specifically, it also includes a positioning structure, which is arranged between the inclined socket 41 and the thermocouple 1. The positioning structure includes a rubber seat 42, a positioning protrusion 43 and a positioning groove 11. The rubber seat 42 is embedded in the inner wall of the inclined socket 41. The top surface of the rubber seat 42 is provided with a positioning protrusion 43. The surface of the thermocouple 1 is provided with a positioning groove 11 corresponding to the positioning protrusion 43. The top of the positioning protrusion 43 is squeezed into the positioning groove 11 to achieve auxiliary positioning after the thermocouple 1 is inserted. When the thermocouple 1 is installed, the operator will lift the pull plate 81 and pass the thermocouple 1 through the inclined socket 41. Until the top end of the positioning protrusion 43 is squeezed into the positioning groove 11, the thermocouple 1 is now provided with a certain auxiliary limit and is in the installation position, and the limit rod 86 and the annular groove 87 are aligned at this time, so that the operator can judge whether the limit rod 86 and the annular groove 87 are aligned when the thermocouple 1 is inserted. At this time, the operator can release the pull plate 81 so that the limit rod 86 is accurately inserted into the annular groove 87. When the thermocouple 1 is removed later, it is only necessary to lift the pull plate 81 and pull up the thermocouple 1 with force so that the top end of the positioning protrusion 43 is squeezed out of the positioning groove 11, and the normal disassembly and assembly of the thermocouple 1 can be realized.

[0026] The rubber seat 42 and the positioning protrusion 43 are an integrated structure, both of which are made of rubber material and will undergo elastic deformation when squeezed. An elliptical cavity is provided in the rubber seat 42, so that the positioning protrusion 43 has sufficient deformation space when squeezed.

[0027] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), 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 monitoring and alarm device for preventing aluminum from escaping from a fixed furnace eye of a deep well casting, comprising a thermocouple (1) and an alarm display (2), wherein the thermocouple (1) and the alarm display (2) are connected via a signal line, wherein the thermocouple (1) is mounted on the left side of a fixed furnace eye opening (6), wherein the end of the thermocouple (1) extends into the inner side of the fixed furnace eye opening (6), and a horizontal seat plate (7) is fixed on the left side of the fixed furnace eye opening (6), and a support bar (3) is fixed on the top of the horizontal seat plate (7), wherein the device is characterized in that: A support sleeve (4) is fixed on the top surface of the support bar (3), and an inclined plug hole (41) corresponding to the thermocouple (1) is provided on the surface of the support sleeve (4), the thermocouple (1) passes through the inclined plug hole (41), and a limiting structure is provided between the support sleeve (4) and the thermocouple (1); The limiting structure comprises an inner slide groove (82) provided inside the top end of the support sleeve (4), an inner slide block (84) and a spring (85) being arranged inside the inner slide groove (82), a limiting clamping rod (86) being fixed at the bottom of the inner slide block (84), an annular clamping groove (87) corresponding to the limiting clamping rod (86) being provided on the surface of the thermocouple (1), and the bottom end of the limiting clamping rod (86) passing through the annular clamping groove (87).

2. The deep well casting fixed furnace eye aluminum escape prevention monitoring alarm device according to claim 1 is characterized by: Two pull rods (83) are symmetrically fixed on the top of the inner sliding block (84), and the top ends of the two pull rods (83) penetrate the top of the support sleeve (4) and are fixed with a pull plate (81).

3. The deep well casting fixed furnace eye aluminum escape prevention monitoring alarm device according to claim 2 is characterized by: The top of the support sleeve (4) is provided with two top holes which are in communication with the inner slide groove (82), and the top holes correspond to the pull rod (83).

4. The deep well casting fixed furnace eye aluminum escape prevention monitoring alarm device according to claim 1 is characterized in that: A cylindrical groove is formed on the top surface of the inner sliding block (84), and the bottom end of the spring (85) is inserted into the cylindrical groove.

5. The deep well casting fixed furnace eye aluminum escape prevention monitoring alarm device according to claim 1 is characterized by: A support rod (5) is also fixed to the top surface of the cross seat plate (7) on the left side relative to the support bar (3), and the alarm display (2) is fixed to the top end of the support rod (5).

6. The deep well casting fixed furnace eye aluminum escape prevention monitoring alarm device according to claim 1 is characterized by: It also comprises a positioning structure, which is arranged between the inclined plug hole (41) and the thermocouple (1).

7. The deep well casting fixed furnace eye aluminum escape prevention monitoring alarm device according to claim 6 is characterized by: The positioning structure comprises a rubber seat (42), a positioning protrusion (43) and a positioning groove (11); the rubber seat (42) is embedded in the inner wall of the inclined jack (41); the top surface of the rubber seat (42) is provided with a positioning protrusion (43); the surface of the thermocouple (1) is provided with a positioning groove (11) corresponding to the positioning protrusion (43); and the top end of the positioning protrusion (43) is squeezed into the positioning groove (11).

8. The deep well casting fixed furnace eye aluminum escape prevention monitoring alarm device according to claim 7 is characterized by: The rubber seat (42) and the positioning protrusion (43) are an integrated structure, and an elliptical cavity is provided in the rubber seat (42).

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