CN220063213U - Accurate measuring device of direct current arc furnace bottom electrode temperature - Google Patents
Accurate measuring device of direct current arc furnace bottom electrode temperature Download PDFInfo
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- CN220063213U CN220063213U CN202321559957.0U CN202321559957U CN220063213U CN 220063213 U CN220063213 U CN 220063213U CN 202321559957 U CN202321559957 U CN 202321559957U CN 220063213 U CN220063213 U CN 220063213U
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- bottom electrode
- direct current
- arc furnace
- thermocouple
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- 238000004891 communication Methods 0.000 claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000009529 body temperature measurement Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model provides a direct current arc furnace bottom electrode temperature accurate measurement device which comprises a thermocouple, a wireless transmitter, a wireless receiver, a 485 communication data processing module, a PLC and an upper computer, wherein the thermocouple and the wireless transmitter are both arranged on the direct current arc furnace bottom electrode, temperature data detected by the thermocouple are transmitted to the wireless receiver through the wireless transmitter, the wireless receiver is connected with the 485 communication data processing module, the 485 communication data processing module is arranged on the PLC, the wireless receiver transmits the received temperature data to the PLC, and the temperature data is converted in the PLC and is transmitted to the upper computer for temperature display. The device is not affected by steel slag splashing, mechanical collision and other reasons, has high measurement precision and low failure rate, prolongs the service life and reduces the maintenance cost.
Description
Technical Field
The utility model relates to the field of furnace bottom temperature measurement, in particular to a precise measuring device for the temperature of a direct current arc furnace bottom electrode.
Background
The DC arc furnace is main equipment in steelmaking production, and DC arc in smelting process is conducted to graphite electrode through conducting needle to heat molten steel and to have certain erosion and corrosion effect on refractory material in nearby furnace bottom. Because the eroded state is uncontrollable, when the furnace bottom refractory erodes to a certain extent, the furnace bottom steel plate can be washed through, furnace penetration occurs, and steel leakage accidents are caused. The temperature thermocouple uniformly distributed on the bottom electrode plane can timely master the distribution condition of the temperature of the bottom electrode plane, and schedule the planned maintenance in time under the condition of abnormal temperature (local temperature is more than 550 ℃), so that production accidents can be avoided. Therefore, stable bottom electrode temperature accurate measurement feedback has unusual meaning.
The structural form of the conventional DC arc furnace bottom electrode temperature measurement adopts a common temperature thermocouple, and a compensation wire is matched with a temperature transmitter and a distributor to transmit data signals to a PLC, and the acquisition of upper computer data is completed. However, in the production process, due to the reasons of steel slag splashing, mechanical collision and the like, a cable of a temperature measuring couple head is loosened, lead burning loss is compensated, a temperature transmitter is burnt, a bottom electrode temperature measuring point is lost, measuring precision is poor, and stability of using times of a furnace bottom is affected.
Disclosure of Invention
The utility model aims to provide a direct current arc furnace bottom electrode temperature accurate measurement device which is suitable for accurate measurement of the direct current arc furnace bottom electrode temperature, thoroughly solves the problem that a traditional bottom electrode temperature measurement system is interrupted due to various reasons, improves the stability of signal transmission and the system precision, reduces the equipment failure rate, prolongs the service life and reduces the maintenance cost. The device has simple structure, convenient maintenance and reliable effect.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides a accurate measuring device of direct current arc furnace bottom electrode temperature, includes thermocouple, wireless transmitter, wireless receiver, 485 communication data processing module, PLC and host computer, wherein, thermocouple and wireless transmitter are all installed on the direct current arc furnace bottom electrode, the temperature data that the thermocouple detected is passed through wireless transmitter and is transmitted wireless receiver, wireless receiver with 485 communication data processing module is connected, 485 communication data processing module installs on the PLC, wireless receiver will receive temperature data transfer PLC, temperature data is in accomplish data conversion in the PLC and is transmitted to the host computer carries out temperature display.
Further, in the accurate measuring device for the temperature of the bottom electrode of the direct-current arc furnace, the wireless receiver, the 485 communication data processing module and the PLC are all installed at positions far away from steel slag splashing.
Further, in the accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace, temperature data received by the wireless receiver is transmitted to the 485 communication data processing module through a 485 communication line.
Furthermore, in the direct current arc furnace bottom electrode temperature accurate measuring device, the thermocouple is an armored temperature thermocouple.
Further, in the direct current arc furnace bottom electrode temperature accurate measurement device, the thermocouple is connected with the wireless transmitter through a spring bent pipe.
Further, in the accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace, the thermocouple is provided with a fixing nut.
Further, in the accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace, the wireless receiver is provided with a receiving antenna.
Further, in the accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace, the 485 communication data processing module transmits temperature data to the PLC in an array mode.
The utility model discloses a direct current arc furnace bottom electrode temperature accurate measuring device, which utilizes a wireless transmitter and a wireless receiver to replace a compensation wire, a temperature transmitter and a distributor to transmit signals, so that the device is not affected by steel slag splashing, mechanical collision and other reasons, and thoroughly solves the problems of interruption of temperature measuring signals, line burning loss, high maintenance difficulty, high operation risk, large measurement precision error and the like caused by various reasons of a traditional bottom electrode temperature measuring system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. Wherein:
FIG. 1 is a schematic diagram of the thermocouple and wireless transmitter assembly of an embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of an assembly of a wireless receiver, a 485 communication data processing module, and a PLC according to an embodiment of the present utility model.
Reference numerals illustrate: a thermocouple; 2 a wireless transmitter; 3 a wireless receiver; 4 485 communication data processing module; 5PLC;6, fixing a nut; 7, a spring bent pipe; 8 receiving antennas.
Detailed Description
The utility model will be described in detail below with reference to the drawings in connection with embodiments. The examples are provided by way of explanation of the utility model and not limitation of the utility model. Indeed, it will be apparent to those skilled in the art that modifications and variations can be made in the present utility model without departing from the scope or spirit of the utility model. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield still a further embodiment. Accordingly, it is intended that the present utility model encompass such modifications and variations as fall within the scope of the appended claims and their equivalents.
In the description of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "coupled," "connected," and "configured" as used herein are to be construed broadly and may be, for example, fixedly connected or detachably connected; can be directly connected or indirectly connected through an intermediate component; either a wired electrical connection, a radio connection or a wireless communication signal connection, the specific meaning of which terms will be understood by those of ordinary skill in the art as the case may be.
One or more examples of the utility model are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the utility model. As used herein, the terms "first," "second," and "third," etc. are used interchangeably to distinguish one component from another and are not intended to represent the location or importance of the individual components.
As shown in fig. 1 to 2, according to an embodiment of the present utility model, there is provided a direct current arc furnace bottom electrode temperature precision measuring apparatus, which includes a thermocouple 1, a wireless transmitter 2, a wireless receiver 3, a 485 communication data processing module 4, a PLC 5 (programmable logic controller) and an upper computer, wherein, the thermocouple 1 and the wireless transmitter 2 are both installed on the direct current arc furnace bottom electrode, temperature data detected by the thermocouple 1 is transmitted to the wireless receiver 3 through the wireless transmitter 2, the wireless receiver 3 is connected with the 485 communication data processing module 4, the 485 communication data processing module 4 is installed on the PLC 5, the wireless receiver 3 transmits the received temperature data to the PLC 5, and the temperature data is converted in the PLC 5 and transmitted to the upper computer for temperature display. The device uses the wireless transmitter 2 and the wireless receiver 3 to replace compensation wires, a temperature transmitter and a distributor for signal transmission, thereby reducing maintenance cost.
Further, the wireless receiver 3, 485 communication data processing module 4 and PLC 5 are all installed in the position that keeps away from the slag and splashes or can take place mechanical collision, so set up and make the device not receive the influence of reasons such as slag splashes, mechanical collision, thoroughly solve traditional bottom electrode temperature measurement system and cause the problem that temperature measurement signal is interrupted because of reasons such as slag splashes, mechanical collision, make the measurement accuracy of device high, the fault rate is low, improve life, reduce maintenance cost.
Further, the temperature data received by the wireless receiver 3 is transmitted to the 485 communication data processing module 4 through a 485 communication line.
Further, the thermocouple 1 is an armored temperature thermocouple 1. The armored thermocouple has higher protection level and is more suitable for complex temperature environments in the field.
Further, the thermocouple 1 is connected with the wireless transmitter 2 through a spring elbow 7. The thermocouple 1 is convenient to install by the arrangement, and the thermocouple 1 is prevented from being damaged due to collision in the furnace bottom lifting process.
Further, the thermocouple 1 is provided with a fixing nut 6. The fixing nut 6 is matched with a furnace bottom fixing screw for use, and can fix the measuring part of the thermocouple 1 at the furnace bottom to prevent falling.
Further, the wireless receiver 3 is provided with a receiving antenna 8. The arrangement can enable the wireless receiver 3, 485 communication data processing module 4 and the PLC 5 to be installed at a position far away from steel slag splashing as far as possible or where mechanical collision can occur, so that the device is not influenced by reasons such as steel slag splashing, mechanical collision and the like.
Further, 485 communication data processing module 4 transmits the temperature data to PLC 5 in the form of an array.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
the utility model provides a accurate measuring device of direct current arc furnace bottom electrode temperature, the device utilizes wireless transmitter 2 and wireless receiver 3 to replace compensation wire, temperature transmitter and distributor and carries out the transmission of signal, make the device not receive the influence of reasons such as slag splashes, mechanical collision, thoroughly solve traditional bottom electrode temperature measurement system and cause temperature measurement signal interruption, the circuit burns out the damage, the maintenance degree of difficulty is big, the operation risk is high, measurement accuracy error is big scheduling problem, the device measurement accuracy is high, the fault rate is low, life has been improved, maintenance cost has been reduced.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace is characterized by comprising a thermocouple, a wireless transmitter, a wireless receiver, a 485 communication data processing module, a PLC and an upper computer, wherein,
the thermocouple and the wireless transmitter are both arranged on the bottom electrode of the direct current arc furnace, the temperature data detected by the thermocouple is transmitted to the wireless receiver through the wireless transmitter,
the wireless receiver is connected with the 485 communication data processing module, the 485 communication data processing module is arranged on the PLC,
and the wireless receiver transmits the received temperature data to the PLC, and the temperature data is converted in the PLC and transmitted to the upper computer for temperature display.
2. The accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace according to claim 1, wherein,
the wireless receiver, the 485 communication data processing module and the PLC are all installed at positions far away from steel slag splashing.
3. The accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace according to claim 1, wherein,
and the temperature data received by the wireless receiver is transmitted to the 485 communication data processing module through a 485 communication line.
4. The accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace according to claim 1, wherein,
the thermocouple is an armored temperature thermocouple.
5. The accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace according to claim 1, wherein,
the thermocouple is connected with the wireless transmitter through a spring bent pipe.
6. The accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace according to claim 1, wherein,
and a fixing nut is arranged on the thermocouple.
7. The accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace according to claim 1, wherein,
the wireless receiver is provided with a receiving antenna.
8. The accurate measuring device for the temperature of the bottom electrode of the direct current arc furnace according to claim 1, wherein,
and the 485 communication data processing module transmits the temperature data to the PLC in an array mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321559957.0U CN220063213U (en) | 2023-06-16 | 2023-06-16 | Accurate measuring device of direct current arc furnace bottom electrode temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321559957.0U CN220063213U (en) | 2023-06-16 | 2023-06-16 | Accurate measuring device of direct current arc furnace bottom electrode temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220063213U true CN220063213U (en) | 2023-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321559957.0U Active CN220063213U (en) | 2023-06-16 | 2023-06-16 | Accurate measuring device of direct current arc furnace bottom electrode temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220063213U (en) |
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2023
- 2023-06-16 CN CN202321559957.0U patent/CN220063213U/en active Active
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