CN211373207U - Real-time monitoring device for molten aluminum of heat preservation furnace - Google Patents
Real-time monitoring device for molten aluminum of heat preservation furnace Download PDFInfo
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- CN211373207U CN211373207U CN201922395068.5U CN201922395068U CN211373207U CN 211373207 U CN211373207 U CN 211373207U CN 201922395068 U CN201922395068 U CN 201922395068U CN 211373207 U CN211373207 U CN 211373207U
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- outer sleeve
- heat preservation
- sleeve
- protective sleeve
- preservation furnace
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Abstract
The utility model discloses a real-time monitoring device for molten aluminum in a heat preservation furnace, which comprises an outer sleeve arranged on the heat preservation furnace, wherein two opposite ends of the outer sleeve are respectively formed into an installation end and a free end, and the installation end and the free end of the outer sleeve are both in an open shape; the outer sleeve is fixedly arranged on the side wall of the heat preservation furnace through the mounting end, and the free end of the outer sleeve extends obliquely upwards; the protective sleeve is detachably arranged in the outer sleeve, the bottom end of the protective sleeve is closed, the top end of the protective sleeve is an opening end, the bottom end of the protective sleeve is inserted into the outer sleeve along the inclined direction, the lowest point of the inner cavity of the outer sleeve is lower than the set liquid level line of the heat preservation furnace, and the protective sleeve does not extend into the inner cavity of the heat preservation furnace; inside the protective sleeve, there are thermocouple and electric heater, and the thermocouple is connected to the display. By the aid of the method and the device, real-time monitoring of the temperature of the aluminum liquid can be achieved.
Description
Technical Field
The utility model relates to a real-time monitoring device for molten aluminum in a heat preservation furnace.
Background
Aluminum casting is the basis of aluminum processing industry, and the temperature of aluminum liquid in the aluminum melting process directly influences the product quality. The excessive high temperature of the aluminum liquid can cause the overheating of the aluminum liquid and the increase of oxidation and hydrogen absorption; the low temperature of the aluminum liquid can lead to insufficient alloying of the aluminum liquid. Therefore, it is very important to keep the temperature of the aluminum liquid in the most appropriate range.
At present, the real-time monitoring of the furnace atmosphere temperature is basically realized in the aluminum casting industry, but the temperature of aluminum liquid is mostly measured in a manual mode, and the control requirement of high-end aluminum products on the temperature cannot be fully guaranteed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the above-mentioned problem, provide a temperature monitoring device to realize the real time monitoring to aluminium liquid temperature, concrete technical scheme is:
a real-time monitoring device for molten aluminum in a heat preservation furnace comprises an outer sleeve arranged on the heat preservation furnace, wherein two opposite ends of the outer sleeve are respectively formed into an installation end and a free end, and the installation end and the free end of the outer sleeve are both in an open shape;
the outer sleeve is fixedly arranged on the side wall of the heat preservation furnace through the mounting end, and the free end of the outer sleeve extends obliquely upwards;
the protective sleeve is detachably arranged in the outer sleeve, the bottom end of the protective sleeve is closed, the top end of the protective sleeve is an opening end, the bottom end of the protective sleeve is inserted into the outer sleeve along the inclined direction, the lowest point of the inner cavity of the outer sleeve is lower than the set liquid level line of the heat preservation furnace, and the protective sleeve does not extend into the inner cavity of the heat preservation furnace;
inside the protective sleeve, there are thermocouple and electric heater, and the thermocouple is connected to the display.
Preferably, the angle between the outer sleeve and the horizontal is 45 °. The electric heater is a resistance wire for heating.
When the holding furnace is full of aluminium liquid greatly, aluminium liquid in the holding furnace can exceed outer tube inner chamber minimum, and at this moment, aluminium liquid can enter into in the outer tube to make protective case's the latter half flooding in aluminium liquid, the air in the protective case also can be heated by the while, makes the air temperature in the protective case the same with the temperature of aluminium liquid, and the temperature that the thermocouple detected is the temperature of aluminium liquid promptly, and the data that the thermocouple detected can direct display to the display on, the manual observation of being convenient for. The protection sleeve does not extend into the inner cavity of the heat preservation furnace, so that the protection sleeve can be prevented from being damaged when solid materials are put into the heat preservation furnace.
After the aluminum slag-free temperature-measuring device is used for a period of time, the outer surface of the protective sleeve can be covered by aluminum slag solidified by aluminum liquid, so that the temperature measurement accuracy is influenced, at the moment, the electric heater is started, the temperature is increased to 700 ℃, the aluminum slag on the surface of the sleeve is melted, and the detection accuracy is recovered.
By the aid of the method and the device, real-time monitoring of the temperature of the molten aluminum in the heat preservation furnace in the aluminum casting production process can be realized, and effective management and control measures are provided for guaranteeing product quality.
Further, a first flange is mounted at the free end of the outer sleeve, and a second flange is mounted at the open end of the protective sleeve, and the second flange is sealingly and detachably mounted on the first flange via bolts. The protective sleeve can be conveniently disassembled by adopting flange type connection so as to replace the thermocouple and the electric heater.
Furthermore, the second flange is a blind flange, a first mounting hole and a second mounting hole are formed in the blind flange, the first mounting hole and the second mounting hole are threaded holes, the thermocouple is screwed on the first mounting hole, and the electric heater is screwed on the second mounting hole. The design can be used for separately replacing the thermocouple or the electric heater.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Referring to fig. 1, a real-time monitoring device for molten aluminum in a holding furnace includes an outer sleeve 200 disposed on the holding furnace 100. The holding furnace includes a floor 110 and a sidewall 120 extending upwardly along the floor.
The opposite ends of the outer sleeve 200 are formed as a mounting end 210 and a free end 220, respectively, and the mounting end and the free end of the outer sleeve are open.
The outer sleeve 200 is fixedly mounted to the side wall 120 of the holding furnace via a mounting end 210, and a free end 220 of the outer sleeve extends obliquely upward. The outer sleeve is a circular tube, and the included angle alpha between the outer sleeve and the horizontal plane is 45 degrees.
A protective sleeve 300 is detachably mounted in the outer sleeve 200, the bottom end 310 of the protective sleeve 300 is closed, the top end of the protective sleeve is an open end 320, the bottom end 310 of the protective sleeve is inserted into the outer sleeve 200 along an inclined direction, and the lowest point of the inner cavity of the outer sleeve is lower than the set liquid level line 180 of the holding furnace.
In order to prevent the solid material from damaging the outer sleeve when the solid material is put into the holding furnace, in this embodiment, the protection sleeve 200 does not extend into the inner cavity 160 of the holding furnace.
A thermocouple 400 and an electric heater 500 are disposed inside the protective sleeve 300, and a display 600 is externally connected to the thermocouple 400.
A first flange 230 is mounted at the free end 220 of the outer sleeve 200, and a second flange 330 is mounted at the open end 320 of the protective sleeve 300, the second flange 330 being sealingly detachably mounted on the first flange 230 by means of bolts.
In this embodiment, the second flange is a blind flange, the blind flange is provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are both threaded holes, the thermocouple is screwed in the first mounting hole, and the electric heater is screwed in the second mounting hole.
In this embodiment, the thermocouple 400 is a WRN2-122 type thermocouple manufactured by Shanghai Tiankang instruments. The electric heater is a resistance wire for heating. The protective sleeve is made of high-temperature-resistant silicon nitride.
After the protective sleeve is used for a period of time, aluminum liquid is condensed into aluminum slag to be adhered to the outer surface of the protective sleeve, accuracy of temperature measurement is affected, the electric heater is periodically started, the temperature is increased to 700 ℃, and the aluminum slag on the outer surface of the protective sleeve is melted into liquid to be removed.
Claims (5)
1. A real-time monitoring device for molten aluminum in a heat preservation furnace is characterized by comprising an outer sleeve arranged on the heat preservation furnace, wherein two opposite ends of the outer sleeve are respectively formed into an installation end and a free end, and the installation end and the free end of the outer sleeve are both in an open shape;
the outer sleeve is fixedly arranged on the side wall of the heat preservation furnace through the mounting end, and the free end of the outer sleeve extends obliquely upwards;
the protective sleeve is detachably arranged in the outer sleeve, the bottom end of the protective sleeve is closed, the top end of the protective sleeve is an opening end, the bottom end of the protective sleeve is inserted into the outer sleeve along the inclined direction, the lowest point of the inner cavity of the outer sleeve is lower than the set liquid level line of the heat preservation furnace, and the protective sleeve does not extend into the inner cavity of the heat preservation furnace;
inside the protective sleeve, there are thermocouple and electric heater, and the thermocouple is connected to the display.
2. The real-time monitoring device of claim 1, wherein the outer sleeve is angled at 45 ° to the horizontal.
3. A real-time monitoring device according to claim 1, wherein a first flange is mounted at a free end of the outer sleeve, and a second flange is mounted at an open end of the protective sleeve, the second flange being sealingly and detachably mounted to the first flange via bolts.
4. The real-time monitoring device of claim 3, wherein the second flange is a blind flange, a first mounting hole and a second mounting hole are formed in the blind flange, the first mounting hole and the second mounting hole are both threaded holes, the thermocouple is screwed in the first mounting hole, and the electric heater is screwed in the second mounting hole.
5. The real-time monitoring device of claim 1, wherein the electric heater is a heating resistance wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922395068.5U CN211373207U (en) | 2019-12-27 | 2019-12-27 | Real-time monitoring device for molten aluminum of heat preservation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922395068.5U CN211373207U (en) | 2019-12-27 | 2019-12-27 | Real-time monitoring device for molten aluminum of heat preservation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211373207U true CN211373207U (en) | 2020-08-28 |
Family
ID=72151934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922395068.5U Active CN211373207U (en) | 2019-12-27 | 2019-12-27 | Real-time monitoring device for molten aluminum of heat preservation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211373207U (en) |
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2019
- 2019-12-27 CN CN201922395068.5U patent/CN211373207U/en active Active
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