Anode furnace temperature measuring device

Abstract

The utility model relates to the technical field of rotary anode furnaces, in particular to an anode furnace temperature measuring device which comprises an anode furnace and a thermocouple assembly detachably arranged on the anode furnace, the anode furnace is provided with a copper outlet and a mounting hole for the thermocouple assembly to penetrate through, and the thermocouple assembly is detachably arranged on the copper outlet. The mounting hole is formed in an inclined upper area of the copper outlet; the thermocouple assembly comprises a protective tube and a permanent thermocouple arranged in the protective tube, and a flange plate capable of sealing the mounting hole is arranged at the top of the protective tube; a plurality of slots for placing permanent thermocouples are formed in the protective tube, a plurality of through holes are formed in the flange plate, and each through hole and the corresponding slot are coaxially arranged; the temperature in the rotary furnace can be monitored in real time, the working intensity of temperature measurement of personnel is reduced to a great extent, and the burning risk of splashes at a sampling opening is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary anode furnaces, in particular to a temperature measuring device for an anode furnace. Background Art

[0002] At present, various copper smelting enterprises use rotary anode furnaces for refining anode copper. During the feeding, oxidation, slag removal, reduction and other process operations, disposable thermocouples are often needed to monitor the temperature of the copper liquid in the anode furnace. However, disposable thermocouples cannot monitor the temperature changes of the copper liquid in real time, so they cannot make timely adjustments to the temperature fluctuations during the operation process, resulting in large process temperature deviations, large fuel usage, and high temperature corrosion of the refractory materials in the furnace, which seriously restricts the improvement of the anode furnace life. In addition, disposable thermocouples measure the temperature of the copper melt, which consumes a lot of production materials and is costly. In addition, the temperature of the copper melt is measured at least 6 times to produce a furnace of anode copper, which is labor-intensive for operators and poses great safety risks. Utility Model Content

[0003] The utility model aims to provide an anode furnace temperature measuring device, which can monitor the temperature in a rotary furnace in real time, greatly reduce the work intensity of personnel measuring temperature, and reduce the risk of burning by splashes from a sampling port.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] An anode furnace temperature measuring device comprises an anode furnace and a thermocouple assembly detachably arranged on the anode furnace, wherein the anode furnace is provided with a copper outlet and a mounting hole for the thermocouple assembly to be inserted, and the mounting hole is arranged in an obliquely upper area of ​​the copper outlet;

[0006] The thermocouple assembly includes a protection tube and a permanent thermocouple arranged in the protection tube, and a flange plate capable of sealing the mounting hole is arranged on the top of the protection tube;

[0007] The protection tube is provided with a plurality of slots for placing permanent thermocouples, the flange is provided with a plurality of through holes, and one through hole is coaxially arranged with one of the slots.

[0008] Furthermore, a protective device is provided at the bottom of the protective tube, and the protective device is used to blow air around the bottom of the permanent thermocouple.

[0009] Furthermore, the protection device comprises an annular air pipe arranged along the circumference of the bottom of the protection pipe, and a plurality of air outlets are evenly distributed on the annular air pipe.

[0010] Furthermore, a ventilation pipe is arranged in the protection pipe, one end of the ventilation pipe is connected to the annular air pipe, and the other end of the ventilation pipe is connected to an external air supply device.

[0011] Furthermore, the diameter of the mounting hole is 40-100 mm.

[0012] Furthermore, the cross section of the mounting hole is formed by a semicircle and an arc.

[0013] Furthermore, the mounting hole is located 300-500 mm obliquely above the copper outlet.

[0014] Furthermore, a support handle is provided on the top of the flange.

[0015] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0016] (1) The utility model has a reasonable design and a simple structure. It uses a permanent thermocouple to monitor the temperature of the copper liquid in the rotary anode furnace. It can dynamically adjust the usage of diesel, reducing agent, oxygen, etc. according to the temperature fluctuation in real time, so as to achieve the purpose of accurately controlling the operating temperature and reducing the refining energy consumption. At the same time, it can monitor in real time, greatly reducing the work intensity of personnel measuring temperature and reducing the risk of burning of splashes from the sampling port. More importantly, the utility model is installed in the area obliquely above the copper outlet, which not only reduces the risk of burning of splashes, but also can monitor the temperature in the anode furnace in real time. In particular, the utility model can insert multiple permanent thermocouples in the thermocouple assembly for monitoring, so that the multiple collected data can be centrally processed and evaluated, which can more accurately reflect the temperature in the anode furnace, ensuring the safety of use while improving the detection accuracy.

[0017] (2) Through the improvement of the utility model, during the furnace drying stage after furnace repair, the refractory material can be heated in stages according to the standard heating curve of the refractory material to ensure that the furnace bricks in each area of ​​the furnace are heated evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of an anode furnace provided in an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the structure of a thermocouple assembly provided in an embodiment of the utility model;

[0021] Figure 3 A top view of a flange provided in an embodiment of the utility model.

[0022] Icons: 1- anode furnace, 2- mounting hole, 3- copper outlet, 4- thermocouple assembly, 41- support handle, 42- permanent thermocouple, 43- flange, 44- protective tube, 45- vent pipe, 46- annular air pipe, 47- outlet, 48- slot, 49- through hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Example 1

[0025] An anode furnace temperature measuring device comprises an anode furnace 1 and a thermocouple assembly 4 detachably arranged on the anode furnace 1, wherein the anode furnace 1 is provided with a copper outlet 3 and a mounting hole 2 for the thermocouple assembly 4 to be inserted, and the mounting hole 2 is arranged in the oblique upper area of ​​the copper outlet 3; the thermocouple assembly 4 comprises a protective tube 44 and a permanent thermocouple 42 arranged in the protective tube 44, and a flange 43 capable of sealing the mounting hole 2 is arranged on the top of the protective tube 44; a plurality of slots 48 for placing the permanent thermocouples 42 are arranged in the protective tube 44, and a plurality of through holes 49 are arranged on the flange 43, and one of the through holes 49 is arranged coaxially with one of the slots 48.

[0026] Working principle: When the utility model is used, the thermocouple assembly 4 is inserted into the anode furnace 1 through the installation hole 2, and then the permanent thermocouple 42 is inserted into the slot 48 in the protective tube 44 through the through hole 49 on the flange 43, and the installation hole 2 is blocked with the flange 43, and then the installed thermocouple is wired, and the signal is introduced into the DCS control interface; the utility model uses the permanent thermocouple 42 to monitor the temperature of the copper liquid in the rotary anode furnace 1, and can dynamically adjust the use of diesel, reducing agent, oxygen, etc. according to the temperature fluctuation in real time, so as to achieve the purpose of accurately controlling the operating temperature and reducing the refining energy consumption. purpose; at the same time, real-time monitoring can be carried out, which greatly reduces the workload of personnel in temperature measurement and reduces the risk of burns caused by splashes from the sampling port; more importantly, the utility model is installed in the area obliquely above the copper outlet 3, which not only reduces the risk of burns caused by splashes, but also can monitor the temperature in the anode furnace 1 in real time, especially the utility model can insert multiple permanent thermocouples 42 in the thermocouple assembly 4 for monitoring, so that the multiple data collected can be centrally processed and evaluated, which can more accurately reflect the temperature in the anode furnace 1, ensuring the safety of use while improving the detection accuracy.

[0027] In this embodiment, a protective device is further provided at the bottom of the protective tube 44, and the protective device is used to blow air circumferentially around the bottom of the permanent thermocouple 42, thereby preventing splashes from scouring the thermocouple and the mounting hole 2, ensuring safety and stability in use, and extending service life; specifically, the protective device includes an annular air pipe 46 circumferentially arranged along the bottom of the protective tube 44, and a plurality of air outlets 47 are evenly distributed on the annular air pipe 46; and a ventilation pipe 45 is provided in the protective tube 44, one end of the ventilation pipe 45 is connected to the annular air pipe 46, and the other end is connected to an external air supply device; in this way, the annular air pipe 46 can be ventilated through the ventilation pipe 45 and then sprayed out from the air outlet 47, thereby spraying the splashes away from the thermocouple, avoiding splashes from scouring the thermocouple and the mounting hole 2, ensuring safety and stability in use, and extending service life.

[0028] In this embodiment, the diameter of the mounting hole 2 is 40-100 mm.

[0029] In this embodiment, the cross-section of the mounting hole 2 is formed by a semicircle and an arc, which can not only leave space for buffering expansion for the thermocouple, but also reduce the area of ​​the mounting hole 2; it avoids the erosion of the thermocouple and the mounting hole 2 by airflow and splashes under high temperature, and extends the service life of the thermocouple brick.

[0030] In this embodiment, the mounting hole 2 is located 300-500 mm above the copper outlet 3 .

[0031] In this embodiment, a support handle 41 is further provided on the top of the flange 43 to facilitate operation of the thermocouple assembly 4 .

[0032] Through the improvement of the utility model, the diesel usage in each stage and the reducing agent consumption can be effectively reduced. According to the temperature stable control calculation, the annual reducing agent unit consumption is reduced by 0.6Kg / t-Cu, and the diesel unit consumption is reduced by 1.2Kg / t-Cu, which is equivalent to a cost reduction of 72*2300=165,600 yuan, and an annual diesel cost reduction of 100,800 yuan; at the same time, the use of disposable thermocouples for feeding, oxidation and reduction of the anode furnace in each stage can be reduced, and the annual consumables cost is saved: 330*19*8=50,200 yuan.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anode furnace temperature measuring device, characterized in that: It comprises an anode furnace and a thermocouple assembly detachably arranged on the anode furnace, wherein the anode furnace is provided with a copper outlet and a mounting hole for the thermocouple assembly to be inserted, and the mounting hole is arranged in an obliquely upper area of ​​the copper outlet; The thermocouple assembly includes a protection tube and a permanent thermocouple arranged in the protection tube, and a flange plate capable of sealing the mounting hole is arranged on the top of the protection tube; The protection tube is provided with a plurality of slots for placing permanent thermocouples, the flange is provided with a plurality of through holes, and one through hole is coaxially arranged with one of the slots.

2. The anode furnace temperature measuring device according to claim 1, characterized in that: A protective device is also provided at the bottom of the protective tube, and the protective device is used for blowing air around the bottom of the permanent thermocouple.

3. The anode furnace temperature measuring device according to claim 2, characterized in that: The protection device comprises an annular air pipe arranged along the circumference of the bottom of the protection pipe, and a plurality of air outlets are evenly distributed on the annular air pipe.

4. The anode furnace temperature measuring device according to claim 3, characterized in that: A vent pipe is arranged in the protection pipe, one end of the vent pipe is communicated with the annular air pipe, and the other end of the vent pipe is communicated with an external air supply device.

5. The anode furnace temperature measuring device according to claim 1, characterized in that: The diameter of the mounting hole is 40-100 mm.

6. The anode furnace temperature measuring device according to claim 5, characterized in that: The cross section of the mounting hole is formed by a semicircle and an arc.

7. The anode furnace temperature measuring device according to claim 1, characterized in that: The mounting hole is located 300-500mm above the copper outlet.

8. The anode furnace temperature measuring device according to claim 1, characterized in that: A support handle is also provided on the top of the flange.

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