On-line temperature measuring device for molten aluminum of reverberatory furnace

Abstract

The utility model relates to the technical field of temperature measurement, and discloses an online temperature measuring device for molten aluminum of a reverberatory furnace, which comprises a measuring device, a furnace body is arranged on the outer side of the measuring device, an upper cover plate is detachably connected to the upper outer wall of the furnace body through bolts, a fixing mechanism is arranged in the furnace body, and the upper cover plate is detachably connected with the upper outer wall of the furnace body through bolts. And a promoting mechanism is arranged in the furnace body. According to the reflecting furnace molten aluminum online temperature measuring device, when measurement is needed, a sealing plug can be opened, a contact point at the lower end of the measuring device is inserted into a furnace body and enters different depths of the furnace body from different movable holes according to different positions, meanwhile, a rotary knob can be rotated to enable a rotary cylinder to drive a cleaning block to rotate, and when the contact point is cleaned and inserted into the surface of molten aluminum, measurement is completed. The adhered aluminum oxide layer further affects the accuracy of measurement, the damage rate of the measurement device is further reduced, and the sealing block and the sealing ring are arranged, so that the sealing performance of the interior of the furnace body during measurement of the measurement device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of temperature measurement technology, specifically to an online temperature measurement device for molten aluminum in a reverberatory furnace. Background Technology

[0002] When producing high-precision aluminum ingots, the molten aluminum undergoes different processing steps in the smelting furnace, holding furnace, degassing chamber, and deep bed filter. In order to ensure that the temperature of the molten aluminum in each piece of equipment meets the process requirements, online temperature measuring devices are installed to monitor the temperature of the molten aluminum in real time.

[0003] According to a publicized device for measuring the temperature of molten aluminum inside a vacuum tank (publication number: CN208043292U), the above application includes a stirring shaft inside the temperature measuring device body, which is driven by a motor to rotate and stir the molten aluminum to facilitate temperature measurement. In addition, a first temperature sensor is installed inside the temperature measuring device, and two second temperature sensors are installed on the bottom outside of the temperature measuring device to detect the temperature inside the vacuum tank and located outside the temperature measuring device body.

[0004] However, in actual use, the temperature of molten aluminum is generally high, and molten aluminum is corrosive, which makes the temperature sensor, which is always placed inside the reactor, easily damaged and affects the temperature measurement effect. In view of this, we propose an online temperature measurement device for molten aluminum in a reverberatory furnace. Utility Model Content

[0005] The purpose of this invention is to provide an online temperature measurement device for molten aluminum in a reverberatory furnace, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an online temperature measuring device for molten aluminum in a reverberatory furnace, comprising a measuring device, a furnace body disposed on the outer side of the measuring device, a top cover plate detachably bolted to the upper outer wall of the furnace body, a fixing mechanism disposed inside the furnace body, and a promoting mechanism disposed inside the furnace body, the fixing mechanism comprising:

[0007] An movable hole is formed on the outer wall of the upper cover plate. A sealing plug is snapped into the inside of the movable hole. A connecting rod is fixedly connected to the lower surface of the measuring device. A contact point is fixedly installed on the arc surface of the end of the connecting rod.

[0008] A rotating cylinder is rotatably connected to the arc surface of a connecting rod. A rotating knob is fixedly installed at the end of the rotating cylinder near the measuring device, and a cleaning block is fixedly connected to the outer wall of the end of the rotating cylinder away from the measuring device.

[0009] Preferably, the promoting mechanism includes a sealing block, which is fixedly installed on the arc surface of the rotating cylinder, and a sealing ring is fixedly installed on the arc surface of the outer wall edge of the sealing block.

[0010] Preferably, the shapes of the sealing ring and the sealing block are adapted to the shape of the movable hole.

[0011] Preferably, the number of sealing blocks is set to several, and the several sealing blocks are fixedly installed in a linear array on the arc surface of the rotating cylinder. The arrangement of multiple sealing blocks facilitates a certain degree of sealing of the interior of the furnace body during measurement.

[0012] Preferably, the surface of the rotating cylinder is provided with a mounting hole, the diameter of which is adapted to the diameter of the connecting rod, and the rotating cylinder is sleeved on the arc surface of the connecting rod, so that the rotating cylinder can rotate on the surface of the connecting rod.

[0013] Preferably, the shape of the cleaning block is adapted to the shape of the local area of ​​the contact point, and the number of cleaning blocks is set to three sets. The three sets of cleaning blocks are fixedly installed on the surface of the rotating cylinder in a circumferential array. During the rotation of the rotating cylinder, the cleaning blocks are driven to clean the contact point.

[0014] Preferably, the number of movable holes is set in three groups, with three movable holes in each group. The three movable holes are arranged in a linear array on the surface of the upper cover plate, and the three groups of movable holes are arranged in a circumferential array on the surface of the upper cover plate. Multiple movable holes facilitate the insertion of the measuring device into the interior of the furnace body from different areas.

[0015] Compared with the prior art, this utility model provides an online temperature measurement device for molten aluminum in a reverberatory furnace, which has the following beneficial effects:

[0016] 1. This online temperature measuring device for molten aluminum in a reverberatory furnace has a fixed mechanism. When measurement is required, the sealing plug can be opened, and the contact point at the lower end of the measuring device can be inserted into the furnace body. Depending on the position, it can enter the furnace body to different depths through different movable holes. At the same time, the rotary knob can be rotated to make the rotating cylinder drive the cleaning block to rotate, cleaning the aluminum oxide layer adhering to the surface of the molten aluminum when it is inserted into the contact point, which affects the accuracy of the measurement and thus reduces the damage rate of the measuring device.

[0017] 2. This online temperature measurement device for molten aluminum in a reverberatory furnace is equipped with a promoting mechanism, sealing blocks, and sealing rings to ensure the sealing of the furnace body during measurement, reducing the loss of internal temperature. At the same time, the number of sealing blocks can roughly determine the insertion depth of the measuring device, ensuring the accuracy of the measurement data. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a partial schematic diagram of the structural measuring device of this utility model;

[0020] Figure 3 This is a partial schematic diagram of the rotating cylinder structure of this utility model;

[0021] Figure 4 This is a schematic diagram of a partial explosion of the rotating cylinder structure of this utility model.

[0022] In the diagram: 1. Furnace body; 2. Top cover plate; 3. Fixing mechanism; 301. Movable hole; 302. Sealing plug; 303. Connecting rod; 304. Rotary knob; 305. Rotating cylinder; 306. Cleaning block; 307. Contact point; 4. Promoting mechanism; 401. Sealing block; 402. Sealing ring; 5. Measuring device. Detailed Implementation

[0023] like Figures 1-4 As shown, this utility model provides a technical solution: an online temperature measuring device for molten aluminum in a reverberatory furnace, including a measuring device 5, a furnace body 1 arranged on the outside of the measuring device 5, an upper cover plate 2 detachably bolted to the upper outer wall of the furnace body 1, a fixing mechanism 3 arranged inside the furnace body 1, and a promoting mechanism 4 arranged inside the furnace body 1. The fixing mechanism 3 includes a movable hole 301, a sealing plug 302, a connecting rod 303, a rotary knob 304, a rotating cylinder 305, a cleaning block 306, and a contact point 307.

[0024] In one embodiment of this utility model, an active hole 301 is formed on the outer wall of the upper cover plate 2, and a sealing plug 302 is snapped into the inside of the active hole 301. A connecting rod 303 is fixedly connected to the lower surface of the measuring device 5, and a contact point 307 is fixedly installed on the arc surface of the end of the connecting rod 303. A rotating cylinder 305 is rotatably connected to the arc surface of the connecting rod 303. A rotating knob 304 is fixedly installed on the end of the rotating cylinder 305 near the measuring device 5, and a cleaning block 306 is fixedly connected to the outer wall of the end of the rotating cylinder 305 away from the measuring device 5.

[0025] In addition, the promoting mechanism 4 includes a sealing block 401, which is fixedly installed on the arc surface of the rotating cylinder 305. A sealing ring 402 is fixedly installed on the arc surface of the outer wall edge of the sealing block 401. The shape of the sealing ring 402 and the sealing block 401 is adapted to the shape of the movable hole 301. Several sealing blocks 401 are provided, and several sealing blocks 401 are fixedly installed on the arc surface of the rotating cylinder 305 in a linear array. The arrangement of multiple sealing blocks 401 facilitates a certain degree of sealing of the interior of the furnace body 1 during measurement.

[0026] In this embodiment of the utility model, the surface of the rotating cylinder 305 is provided with mounting holes, the diameter of which is adapted to the diameter of the connecting rod 303. The rotating cylinder 305 is sleeved on the arc surface of the connecting rod 303, so that the rotating cylinder 305 can rotate on the surface of the connecting rod 303. The shape of the cleaning block 306 is adapted to the shape of the local area of ​​the contact point 307. The number of cleaning blocks 306 is set in three groups, and the three groups of cleaning blocks 306 are fixedly installed on the surface of the rotating cylinder 305 in a circumferential array. During the rotation of the rotating cylinder 305, the cleaning blocks 306 are driven to clean the contact point 307. The number of movable holes 301 is set in three groups, and the number of movable holes 301 in each group is set in three. The three movable holes 301 are arranged in a linear array on the surface of the upper cover plate 2, and the three groups of movable holes 301 are arranged in a circumferential array on the surface of the upper cover plate 2. The multiple movable holes 301 facilitate the insertion of the measuring device 5 into the interior of the furnace body 1 from different areas, thereby measuring the temperature of the molten aluminum in different areas.

[0027] Measuring device 5 utilizes the thermocouple effect. A thermocouple is a temperature sensor that uses the thermoelectric effect to measure the temperature of an object. A thermocouple consists of two wires of different metals, and their contact point 307 is called the thermocouple junction. When the thermocouple junction comes into contact with an object, a potential difference is generated between the two metal wires. This potential difference is proportional to the temperature of the object. By measuring this potential difference, the temperature of the object can be calculated.

[0028] In this utility model, when measurement is required, the sealing plug 302 can be opened, and the contact point 307 at the lower end of the measuring device 5 can be inserted into the furnace body 1. Depending on the position, it can enter the furnace body 1 to different depths through different movable holes 301. At the same time, the rotary knob 304 can be rotated to make the rotating cylinder 305 drive the cleaning block 306 to rotate. When cleaning the aluminum molten aluminum surface inserted at the contact point 307, the aluminum oxide layer adhering there will affect the accuracy of the measurement, thereby reducing the damage rate of the measuring device 5.

[0029] The sealing block 401 and sealing ring 402 ensure the sealing of the furnace body 1 when the measuring device 5 is measuring, reducing the loss of temperature inside the furnace body 1. At the same time, the number of sealing blocks 401 can roughly determine the insertion depth of the measuring device 5, ensuring the accuracy of the measurement data.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A kind of on-line temperature measuring device of reverberatory aluminum water, including measuring device (5), the outer side of measuring device (5) is provided with furnace body (1), the upper outer wall of furnace body (1) can be detachably bolted with upper cover plate (2), it is characterized by: The inside of the furnace body (1) is provided with a fixing mechanism (3), and the inside of the furnace body (1) is provided with a promoting mechanism (4), the fixing mechanism (3) comprises: The movable hole (301) is arranged on the outer wall of the upper cover plate (2), the movable hole (301) is internally clamped with a sealing plug (302), the lower surface of the measuring device (5) is fixedly connected with a connecting rod (303), and the end arc surface of the connecting rod (303) is fixedly installed with a contact point (307); The rotating cylinder (305) is rotatably connected to the arc surface of the connecting rod (303), the end of the rotating cylinder (305) close to the measuring device (5) is fixedly installed with a rotating knob (304), and the end of the rotating cylinder (305) away from the measuring device (5) is fixedly connected with a cleaning block (306).

2. The on-line temperature measuring device for molten aluminum in a holding furnace according to claim 1, characterized in that: The promoting mechanism (4) comprises a sealing block (401), the sealing block (401) is fixedly installed on the arc surface of the rotating cylinder (305), and the outer wall edge arc surface of the sealing block (401) is fixedly installed with a sealing ring (402).

3. The on-line temperature measuring device for molten aluminum in a holding furnace according to claim 2, wherein: The shape of the sealing ring (402) and the sealing block (401) is matched with the shape of the movable hole (301).

4. The on-line temperature measuring device for molten aluminum in a holding furnace according to claim 2, characterized in that: The number of the sealing block (401) is several, and the several sealing blocks (401) are fixedly installed on the arc surface of the rotating cylinder (305) in linear array.

5. The on-line temperature measuring device for molten aluminum in a holding furnace according to claim 1, characterized in that: The surface of the rotating cylinder (305) is provided with a mounting hole, the diameter of the mounting hole is matched with the diameter of the connecting rod (303), and the rotating cylinder (305) is sleeved on the arc surface of the connecting rod (303).

6. The on-line temperature measuring device for molten aluminum in a holding furnace according to claim 1, characterized in that: The shape of the cleaning block (306) is matched with the shape of the local area of the contact point (307), the number of the cleaning block (306) is three groups, and the three groups of cleaning blocks (306) are fixedly installed on the surface of the rotating cylinder (305) in circumferential array.

7. The on-line temperature measuring device for molten aluminum in a holding furnace according to claim 1, characterized in that: The number of the movable hole (301) is three groups, the number of each group of movable holes (301) is three, three movable holes (301) are arranged on the surface of the upper cover plate (2) in linear array, and three groups of movable holes (301) are arranged on the surface of the upper cover plate (2) in circumferential array.

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