Electric furnace shell temperature measuring device
By setting up a secondary instrument collection box and signal transmission system in the arc furnace, the false signal problem caused by the high furnace shell temperature in the arc furnace is solved, and the zero-failure operation and production rhythm of the furnace shell equipment are achieved.
Patent Information
- Application Number
- CN202421036715.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-14
AI Technical Summary
During the normal smelting process of existing electric arc furnaces, the furnace shell temperature often occurs, which triggers the protection chain and causes tripping. The maintenance personnel confirm on-site that the temperature is not high, but in fact it is caused by a false temperature signal, which directly affects the production rhythm of the electric furnace.
An electric furnace shell temperature measurement device was designed. By setting up three secondary instrument collection boxes in the furnace body environment, and transmitting signals to the signal receiving box using bridge trays and signal cables, the impact of the harsh environment of the furnace body is avoided and the accuracy of temperature measurement is ensured.
It achieves zero faults in the furnace shell equipment, ensures normal operation of the equipment, avoids the occurrence of false temperature signals, and improves the rhythm and efficiency of electric furnace production.
Smart Images
Figure CN222635127U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electric arc furnaces, in particular to a temperature measuring device for an electric furnace shell. Background Art
[0002] The electric arc furnace is an electric furnace that uses the high temperature generated by the electrode arc to melt ores and metals. When the gas discharge forms an arc, the energy is very concentrated, and the temperature in the arc zone is above 3000℃. For smelting metals, the electric arc furnace has greater process flexibility than other steelmaking furnaces, can effectively remove impurities such as sulfur and phosphorus, the furnace temperature is easy to control, the equipment occupies a small area, and is suitable for the smelting of high-quality alloy steel. An industrial furnace that generates arc heating through metal electrodes or non-metallic electrodes is called an electric arc furnace. Electric arc furnaces can be divided into three-phase electric arc furnaces, consumable electric arc furnaces, single-phase electric arc furnaces and resistance arc furnaces according to the form of the electric arc. Electric arc steelmaking furnaces are divided into ordinary power electric arc furnaces, high power electric arc furnaces and ultra-high power electric arc furnaces according to the capacity of the transformer per ton of furnace capacity. Electric arc furnace steelmaking is to input electric energy into the electric arc steelmaking furnace through graphite electrodes, and use the arc generated between the electrode end and the charge as the heat source for steelmaking. The electric arc furnace uses electric energy as the heat source, and can adjust the atmosphere in the furnace, which is extremely beneficial for smelting steel containing more easily oxidized elements. Soon after the invention of electric arc furnace steelmaking, it was used to smelt alloy steel and developed greatly.
[0003] During normal smelting processes in existing electric arc furnaces, the furnace shell temperature is often high, triggering the protection chain and causing tripping. Maintenance personnel confirm on-site that the temperature is not high, but in fact it is caused by a false temperature signal, which directly affects the production rhythm of the electric furnace.
[0004] Therefore, it is necessary to provide a new electric furnace shell temperature measuring device to solve the above technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides an electric furnace shell temperature measuring device with improved working efficiency.
[0006] The utility model provides an electric furnace shell temperature measuring device, comprising a factory floor, a signal receiving box is arranged on one side of the factory floor; a protective mechanism, the protective mechanism is arranged on the top of the factory floor, the protective mechanism comprises a secondary instrument collection box, a bridge, a first signal cable and an electrode, the secondary instrument collection box is fixed to the top of the factory floor, the secondary instrument collection boxes are arranged in three, the top of the secondary instrument collection box is fixedly connected with a bridge, the inner wall of the bridge is arranged with a first signal cable, one end of the first signal cable is electrically connected to the secondary instrument collection box, and the other end of the first signal cable is electrically connected to the electrode.
[0007] As an electric furnace shell temperature measuring device provided by the utility model, preferably, the inner wall of the bridge is fixedly connected to a limiting block, the bottom of the bridge is fixedly connected to a support column, and the inner wall of the support column is fixedly connected to a cross bar.
[0008] As an electric furnace shell temperature measuring device provided by the utility model, preferably, a furnace cover is inserted into the outer side of the electrode, and a furnace body is arranged at the bottom of the furnace cover.
[0009] As an electric furnace shell temperature measuring device provided by the utility model, preferably, a hydraulic rod is fixedly connected to the bottom of the furnace body, and the hydraulic rod is used to support the furnace body to tilt.
[0010] As an electric furnace shell temperature measuring device provided by the utility model, preferably, a rotating seat is fixedly connected to the bottom of the furnace body, and a rotating block is rotatably connected to the inner wall of the rotating seat.
[0011] As an electric furnace shell temperature measuring device provided by the utility model, preferably, the bottom of the rotating block is fixedly connected to a platform, and the platform is fixed to the top of the factory floor.
[0012] As an electric furnace shell temperature measuring device provided by the utility model, preferably, the inner wall of the secondary instrument collection box is electrically connected to a second signal cable, and one end of the second signal cable is electrically connected to the inner wall of the signal receiving box.
[0013] As an electric furnace shell temperature measuring device provided by the utility model, preferably, the bottom of the furnace body is connected to a water outlet pipe, a steel ladle is arranged below the water outlet pipe, a transport vehicle is arranged at the bottom of the steel ladle, and the transport vehicle is arranged on the top of the factory ground.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] In view of the harsh environment of the furnace body, the temperature measuring device of the furnace shell of the electric furnace replaces the previous wire tube with a bridge frame, and three secondary instrument collection boxes are newly installed in a long-distance safe range to avoid the harsh environmental factors of the furnace body. The signal is then transmitted to the signal receiving box through a signal cable, displayed on the computer operation screen and interlocked with the electrode and high voltage to cut off the power and lift the electrode. After long-term use, there has been no false signal phenomenon, achieving zero failure of the furnace shell equipment, effectively ensuring the normal operation of the equipment, and escorting the production. It solves the problem that in the normal smelting process of the existing electric arc furnace, the furnace shell temperature is often high, triggering the protection chain and causing tripping. The maintenance personnel confirmed on-site that the temperature is not high, but it is actually caused by a false temperature signal, which directly affects the production rhythm of the electric furnace. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A structural schematic diagram of a preferred embodiment of the electric furnace shell temperature measuring device provided by the utility model;
[0017] Figure 2 It is a structural schematic diagram of the protection mechanism in the utility model;
[0018] Figure 3 It is a structural schematic diagram of the furnace body in the utility model;
[0019] Figure 4 It is a schematic diagram of the structure of the movement of the steel drum in the utility model.
[0020] Numbers in the figure: 1. Factory floor; 2. Signal receiving box; 3. Protection mechanism; 31. Secondary instrument collection box; 32. Bridge; 33. First signal cable; 34. Electrode; 35. Limit block; 36. Support column; 37. Cross bar; 4. Furnace cover; 5. Furnace body; 6. Hydraulic rod; 7. Rotating seat; 8. Rotating block; 9. Platform; 10. Second signal cable; 11. Water outlet pipe; 12. Steel drum; 13. Transport vehicle. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0022] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A structural schematic diagram of a preferred embodiment of the electric furnace shell temperature measuring device provided by the utility model; Figure 2 It is a structural schematic diagram of the lifting mechanism in the utility model; Figure 3 It is a structural schematic diagram of the clamping mechanism in the utility model; Figure 4 The schematic diagram of the structure of the clamping mechanism in the utility model is as follows. A temperature measuring device for an electric furnace shell comprises a factory floor 1, and a signal receiving box 2 is arranged on one side of the factory floor 1.
[0023] In the specific implementation process, Figure 1 and Figure 2 As shown, the protection mechanism 3 is arranged at the top of the factory floor 1, and the protection mechanism 3 includes a secondary instrument collection box 31, a bridge 32, a first signal cable 33 and an electrode 34. The secondary instrument collection box 31 is fixed to the top of the factory floor 1, and three secondary instrument collection boxes 31 are arranged. The top of the secondary instrument collection box 31 is fixedly connected with the bridge 32, and the inner wall of the bridge 32 is provided with the first signal cable 33. One end of the first signal cable 33 is electrically connected to the secondary instrument collection box 31, and the other end of the first signal cable 33 is electrically connected to the electrode 34.
[0024] The inner wall of the bridge frame 32 is fixedly connected to the limit block 35 , the bottom of the bridge frame 32 is fixedly connected to the support column 36 , and the inner wall of the support column 36 is fixedly connected to the cross bar 37 .
[0025] It should be noted that: by setting up the factory floor 1, various equipment can be placed to facilitate the work of workers, by setting up the signal receiving box 2, the signal can be connected to the computer, by setting up the secondary instrument collection box 31, the outer shell temperature of the furnace body 5 can be detected, by setting up the bridge frame 32 instead of the wire tube, the first signal cable 33 can be placed, by setting up the first signal cable 33, the electrode 34 and the secondary instrument collection box 31 can be connected, by setting up the electrode 34, it can be inserted into the furnace body 5, by setting the limit block 35, the first signal cable 33 can be limited to prevent it from detaching from the bridge frame 32, by setting the support column 36, the bridge frame 32 can be supported, and by setting the cross bar 37, the stability of the support of the support column 36 can be improved.
[0026] refer to Figure 1 , Figure 3 and Figure 4 As shown, a furnace cover 4 is inserted into the outer side of the electrode 34 , and a furnace body 5 is arranged at the bottom of the furnace cover 4 .
[0027] A hydraulic rod 6 is fixedly connected to the bottom of the furnace body 5 , and the hydraulic rod 6 is used to support the furnace body 5 to tilt.
[0028] A rotating seat 7 is fixedly connected to the bottom of the furnace body 5 , and a rotating block 8 is rotatably connected to the inner wall of the rotating seat 7 .
[0029] The bottom of the rotating block 8 is fixedly connected to a platform 9 , and the platform 9 is fixed to the top of the factory floor 1 .
[0030] The inner wall of the secondary instrument collection box 31 is electrically connected to the second signal cable 10 , and one end of the second signal cable 10 is electrically connected to the inner wall of the signal receiving box 2 .
[0031] The bottom of the furnace body 5 is connected to a water outlet pipe 11 , a steel ladle 12 is arranged below the water outlet pipe 11 , a transport vehicle 13 is arranged at the bottom of the steel ladle 12 , and the transport vehicle 13 is arranged on the top of the factory ground 1 .
[0032] It should be noted that: by setting the furnace cover 4, the furnace body 5 can be sealed, by setting the furnace body 5, metal smelting can be carried out, by setting the hydraulic rod 6, the furnace body 5 can be driven to move slightly up and down, so that the furnace body 5 can be tilted to pour out the molten liquid, by setting the rotating seat 7 and the rotating block 8, the rotation stability of the furnace body 5 when tilted can be improved, by setting the platform 9, the furnace body 5 can be supported, by setting the second signal cable 10, the signal receiving box 2 and the secondary instrument collection box 31 can be connected, by setting the water outlet pipe 11, the melted liquid in the furnace body 5 can be discharged, by setting the steel ladle 12, the molten metal liquid can be collected, and by setting the transport vehicle 13, the steel ladle 12 can be transported.
[0033] The working principle of the electric furnace shell temperature measuring device provided by the utility model is as follows:
[0034] When in use, the user installs three secondary instrument collection boxes 31 away from the furnace body 5. The secondary instrument collection box 31 is electrically connected to the signal receiving box 2 through the second signal cable 10. The bridge frame 32 is fixedly installed on the secondary instrument collection box 31, and the first signal cable 33 is passed through the bridge frame 32. The first signal cable 33 connects the secondary instrument collection box 31 and the electrode 34. After pouring the metal into the furnace body 5, the furnace cover 4 is closed, and the electrode 34 is inserted into the furnace body 5. The metal is melted by heating. After the smelting is completed, the hydraulic rod 6 is opened to drive the furnace body 5 to move upward, so that the furnace body 5 can be tilted, so that the molten metal liquid is poured out from the water outlet pipe 11, and the poured liquid falls into the steel ladle 12. The transport vehicle 13 carries the steel ladle 12 away.
[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A temperature measuring device for an electric furnace shell, characterized in that: include: A factory floor (1), with a signal receiving box (2) being arranged on one side of the factory floor (1); A protection mechanism (3), the protection mechanism (3) being arranged on the top of a factory floor (1), the protection mechanism (3) comprising a secondary instrument collection box (31), a bridge (32), a first signal cable (33) and an electrode (34), the secondary instrument collection box (31) being fixed on the top of the factory floor (1), the secondary instrument collection box (31) being arranged in three pieces, the top of the secondary instrument collection box (31) being fixedly connected to a bridge (32), the inner wall of the bridge (32) being provided with a first signal cable (33), one end of the first signal cable (33) being electrically connected to the secondary instrument collection box (31), and the other end of the first signal cable (33) being electrically connected to the electrode (34).
2. The electric furnace shell temperature measuring device according to claim 1, characterized in that: The inner wall of the bridge frame (32) is fixedly connected to a limit block (35), the bottom of the bridge frame (32) is fixedly connected to a support column (36), and the inner wall of the support column (36) is fixedly connected to a cross bar (37).
3. The electric furnace shell temperature measuring device according to claim 2, characterized in that: A furnace cover (4) is inserted into the outer side of the electrode (34), and a furnace body (5) is arranged at the bottom of the furnace cover (4).
4. The electric furnace shell temperature measuring device according to claim 3, characterized in that: A hydraulic rod (6) is fixedly connected to the bottom of the furnace body (5), and the hydraulic rod (6) is used to support the furnace body (5) to tilt.
5. The electric furnace shell temperature measuring device according to claim 4, characterized in that: The bottom of the furnace body (5) is fixedly connected to a rotating seat (7), and the inner wall of the rotating seat (7) is rotatably connected to a rotating block (8).
6. The electric furnace shell temperature measuring device according to claim 5, characterized in that: The bottom of the rotating block (8) is fixedly connected to a platform (9), and the platform (9) is fixed to the top of the factory floor (1).
7. The electric furnace shell temperature measuring device according to claim 1, characterized in that: The inner wall of the secondary instrument collection box (31) is electrically connected to a second signal cable (10), and one end of the second signal cable (10) is electrically connected to the inner wall of the signal receiving box (2).
8. The electric furnace shell temperature measuring device according to claim 5, characterized in that: The bottom of the furnace body (5) is connected to a water outlet pipe (11), a steel ladle (12) is arranged below the water outlet pipe (11), a transport vehicle (13) is arranged at the bottom of the steel ladle (12), and the transport vehicle (13) is arranged on the top of the factory floor (1).