CN209877623U - Foamed aluminum electrothermal rapid smelting furnace - Google Patents
Foamed aluminum electrothermal rapid smelting furnace Download PDFInfo
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- CN209877623U CN209877623U CN201920502853.3U CN201920502853U CN209877623U CN 209877623 U CN209877623 U CN 209877623U CN 201920502853 U CN201920502853 U CN 201920502853U CN 209877623 U CN209877623 U CN 209877623U
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Abstract
The utility model provides a foamed aluminum electric heating rapid smelting furnace, which belongs to the field of foamed aluminum production equipment and comprises a furnace body, a furnace cover, a resistance wire heating element, an electric control system and a thermocouple temperature measuring mechanism; the furnace body comprises a furnace shell and a furnace pipe, and the bottom of the furnace pipe is conical; a discharge pipe is arranged at the bottom of the furnace body, and an opening and closing valve is arranged below the discharge pipe; the resistance wire heating elements are distributed on the outer wall of the furnace liner, the electric control system is arranged on the outer wall of the furnace shell, and the electric control system is electrically connected with the resistance wire heating elements; the thermocouple temperature measuring mechanism comprises a temperature display unit arranged outside the furnace body, and a high-point thermocouple and a low-point thermocouple which are arranged inside the furnace body in an F-shaped parallel manner; the top surface of the furnace cover is provided with an exhaust hole and an exhaust ring which can be opened and closed. The utility model discloses a heating structure and temperature measurement mechanism's improvement improves the speed of smelting of aluminium piece and smelts the temperature control precision to solve among the prior art aluminium piece smelt inefficiency, smelt the poor problem of quality.
Description
Technical Field
The utility model belongs to foamed aluminum production facility field, concretely relates to foamed aluminum electrothermal fast smelting furnace.
Background
The production of foamed aluminium requires first the remelting of an aluminium ingot or a slug of cut aluminium foam. The existing aluminum melting electric furnace generally adopts resistance wire heating elements arranged around a furnace body to carry out three-dimensional heating, stirring is carried out in the heating process, and after the aluminum is completely melted, liquid aluminum is subjected to heat preservation and transfer and enters the next foaming process. Because the inner cavity of the furnace body is large, stirring is needed in the heating process to ensure that the furnace body is uniformly heated, after the heating is finished, the whole furnace body is required to be inclined, molten aluminum is poured into a transfer tank car, and the molten aluminum enters the next process. The whole smelting process is complex, the amount of manual participation is large, the control precision of the smelting temperature is not high, and the situation that the aluminum blocks are not smelted due to too low temperature or the aluminum liquid is seriously oxidized and burnt due to too high temperature easily occurs.
Disclosure of Invention
For solving the problem that above-mentioned prior art exists, the utility model provides a foamed aluminum electrothermal rapid smelting furnace through the improvement of heating structure and temperature measurement mechanism, improves the smelting speed and smelts the temperature control precision to improve and smelt efficiency and smelt the quality. The specific technical scheme is as follows:
a foamed aluminum electrothermal rapid smelting furnace comprises a furnace body, a furnace cover, a resistance wire heating element, an electric control system and a thermocouple temperature measuring mechanism;
the furnace body comprises a furnace shell and a furnace pipe, and the bottom of the furnace pipe is conical; a discharge pipe is arranged at the bottom of the furnace body, and an opening and closing valve is arranged below the discharge pipe;
the resistance wire heating elements are distributed on the outer wall of the furnace liner, the electric control system is arranged on the outer wall of the furnace shell, and the electric control system is electrically connected with the resistance wire heating elements;
the thermocouple temperature measuring mechanism comprises a temperature display unit arranged outside the furnace body, and a high-point thermocouple and a low-point thermocouple which are arranged inside the furnace body in an F-shaped parallel mode.
Furthermore, the bottom of the furnace pipe is in a step-shaped conical shape, and resistance wire heating elements are uniformly distributed on the horizontal plane and the vertical plane of the step-shaped conical shape.
Furthermore, the resistance wire heating elements are divided into two groups, namely a furnace liner wall resistance wire heating element and a furnace liner bottom resistance wire heating element, and the electric control system can independently control the two groups of heating elements.
Furthermore, a through hole is formed in one side end of the furnace cover, and the high-point thermocouple and the low-point thermocouple which are arranged in parallel in an F shape penetrate through the through hole and are arranged in the furnace container.
Furthermore, the top surface of the furnace cover is provided with an exhaust hole which can be opened and closed.
Furthermore, an exhaust ring capable of being opened and closed is arranged on the top surface of the furnace cover.
Furthermore, the high-point thermocouple is arranged at the middle lower part of the furnace pipe, and the low-point thermocouple is arranged at the bottom of the furnace pipe close to the discharge pipe.
Further, a silicon carbide ink protective sleeve is arranged on each of the high-point thermocouple and the low-point thermocouple.
The utility model discloses following beneficial effect has:
1. the utility model discloses a stove courage bottom is conical structure makes the aluminium piece heating surface of bottom bigger in the stove courage, and the position that is close to the discharging pipe more highly receives the thermal efficiency, can guarantee that the aluminium piece of bottom melts more completely in the stove courage, guarantees that the aluminium liquid of flowing from the discharging pipe does not have solid particle.
2. The utility model discloses the utilization is the parallel high point thermocouple and the low point thermocouple that set up of F shape and carries out temperature measurement to the aluminium liquid of co-altitude in the furnace pipe, monitors the aluminium liquid temperature of furnace pipe middle part and nearly discharging pipe department simultaneously, can carry out temperature regulation and control to furnace pipe wall resistance wire heating element and furnace pipe bottom resistance wire heating element according to two temperature values to realize accurate control to smelting temperature, avoid aluminium liquid oxidation scaling loss.
3. The utility model discloses be equipped with exhaust hole and exhaust ring on the bell, when thermocouple temperature measuring mechanism detects out the high temperature, can be when reducing resistance wire heating element's heating temperature, select to open exhaust hole or exhaust ring promptly according to the circumstances and cool down, not only can avoid frequently opening the bell of big weight, still can select the quantity of opening exhaust hole or exhaust ring according to the cooling needs, further improve temperature control's accuracy nature.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural section view of the present invention.
Fig. 2 is a schematic structural view of the bottom of the stepped tapered furnace according to the first embodiment of the present invention.
Fig. 3 is a schematic view of a furnace cover according to a second embodiment of the present invention.
Fig. 4 is a schematic structural view of a furnace cover according to a third embodiment of the present invention.
Reference numerals:
1-furnace body, 11-furnace shell, 12-furnace liner, 13-discharge pipe and 14-valve; 2-furnace cover, 21-exhaust hole, 22-exhaust ring; 3-a resistance wire heating element, 31-a furnace liner wall resistance wire heating element, 32-a furnace liner bottom resistance wire heating element and 4-an electric control system; 5-thermocouple temperature measuring mechanism, 51-temperature display unit, 52-high point thermocouple, 53-low point thermocouple.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1-2, a foamed aluminum electrothermal rapid smelting furnace comprises a furnace body 1, a furnace cover 2, a resistance wire heating element 3, an electric control system 4 and a thermocouple temperature measuring mechanism 5;
the furnace body 1 comprises a furnace shell 11 and a furnace pipe 12, the bottom of the furnace pipe 12 is in a tightly arranged step-shaped conical shape, and an included angle of 77 degrees is formed between the horizontal plane and the vertical plane of each step, so that the downward flow of aluminum liquid in the furnace pipe 12 is facilitated; a discharge pipe 13 is arranged at the bottom of the furnace body 1, and an opening and closing valve 14 is arranged below the discharge pipe 13;
the resistance wire heating elements 3 are divided into two groups, namely a furnace liner wall resistance wire heating element 31 and a furnace liner bottom resistance wire heating element 32, which are respectively distributed on the outer wall of the furnace liner 12 and the bottom of the furnace liner 12, and the resistance wire heating elements are uniformly distributed on the vertical surface and the horizontal surface of the bottom of the stepped conical furnace liner 12; the electric control system 4 is arranged on the outer wall of the furnace shell 11, the electric control system 4 is electrically connected with the resistance wire heating elements 3, and the electric control system 4 can independently control the two groups of heating elements.
The thermocouple temperature measuring mechanism 5 comprises a temperature display unit 51 arranged outside the furnace body 1, and a high-point thermocouple 52 and a low-point thermocouple 53 which are arranged in parallel in an F shape and penetrate through a through hole at one side end of the furnace cover 2 to the inside of the furnace body 1; the high-point thermocouple 52 is arranged at the middle lower part of the furnace pipe 12, and the low-point thermocouple 53 is arranged at the bottom of the furnace pipe 12 close to the discharge pipe 13; both the high point thermocouple 52 and the low point thermocouple 53 are provided with a protective sheath of silicon carbide ink.
The working principle and the using method are as follows:
the resistance wire heating element 31 for furnace wall heats and melts the aluminum block at the middle upper part in the furnace 12, because the furnace 12 has a certain diameter, the aluminum block close to the wall of the furnace 12 melts faster, and the aluminum block close to the center of the furnace 12 melts relatively slower, so solid particles can exist at the upper part in the furnace 12, and the solid particles can flow downwards to the bottom of the furnace 12. Because the resistance wire heating elements 3 are uniformly distributed on the vertical surface and the horizontal surface of the bottom of the stepped conical furnace pipe 12, the heating surface of the aluminum block at the bottom in the furnace pipe 12 is larger, and the heating efficiency is higher at the position closer to the discharge pipe 13, so that the aluminum block at the bottom in the furnace pipe 12 can be more completely melted, and the aluminum liquid flowing out from the discharge pipe 13 is ensured to have no solid particles. When in use, the aluminum block to be smelted is placed in the furnace pipe 12, the furnace cover 2 is covered, and the resistance wire heating element 31 on the wall of the furnace pipe and the resistance wire heating element 32 on the bottom of the furnace pipe are opened for heating and smelting; in the process, the thermocouple temperature measuring mechanism 5 is started to monitor the temperature in the furnace in real time. When the temperature of the bottom of the furnace pipe 12 rises to the melting point of the aluminum block, the aluminum block is melted into aluminum liquid, the valve 14 of the discharge pipe 13 is opened, and the aluminum liquid flows out of the discharge pipe 13. In actual use, the discharging pipe 13 can be communicated with a feeding pipe of the foaming furnace, so that molten aluminum directly enters the foaming furnace for foaming, and manual carrying is avoided. When the temperature of the upper part of the furnace pipe 12 and the bottom of the furnace pipe 12 is monitored to deviate from the optimal temperature for smelting the aluminum blocks by the high-point thermocouple 52 and the low-point thermocouple 53 which are arranged in parallel in an F shape, the two groups of heating elements can be subjected to power adjustment control by the electric control system 4, so that the temperature of the whole furnace pipe 12 can be accurately controlled, and the situation that the aluminum blocks are not melted due to too low temperature or the aluminum liquid is oxidized and burned seriously due to too high temperature is avoided. Meanwhile, through the double functions of the stepped conical structure at the bottom of the furnace pipe 12 and the control of the resistance wire heating element 32 at the bottom of the furnace pipe, the aluminum block at the bottom of the furnace pipe 12 can be quickly melted into aluminum liquid to be discharged through the discharging pipe 13, so that the semi-melted aluminum liquid at the upper part in the furnace pipe 12 can be ensured to flow down along with the flow, the use of a stirring device can be avoided, and the working strength of workers is further reduced.
Example two
On the basis of the first embodiment, the top surface of the furnace cover 2 is provided with the exhaust holes 21 which can be opened and closed, when the thermocouple temperature measuring mechanism 5 detects that the temperature is too high, the heating temperature of the resistance wire heating element 3 can be reduced, and meanwhile, the exhaust holes 21 can be opened emergently to cool according to the situation, so that not only can the furnace cover 2 with heavy weight be prevented from being opened frequently, but also the number of the exhaust holes 21 can be opened according to the cooling requirement, and the accuracy of temperature control is further improved.
EXAMPLE III
On the basis of the second embodiment, the top surface of the furnace cover 2 is also provided with the exhaust ring 22 which can be opened and closed, when the thermocouple temperature measuring mechanism 5 detects that the temperature is too high, the heating temperature of the resistance wire heating element 3 can be reduced, and meanwhile, the exhaust holes 21 or the exhaust ring 22 can be selected to be opened urgently according to the situation to reduce the temperature, so that not only can the furnace cover 2 with heavy weight be prevented from being opened frequently, but also the number of the exhaust holes 21 or the exhaust rings 22 can be selected to be opened according to the temperature reduction requirement, and the accuracy of temperature control is further improved.
The foregoing is considered as illustrative only of certain exemplary embodiments of this invention, and is therefore to be understood that the drawings and descriptions will be regarded as illustrative in nature and not as restrictive. It should also be noted that, for those skilled in the art, a plurality of improvements and additions can be made in various ways without departing from the principles of the present invention, and these improvements and additions should also be considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a foamed aluminium electrothermal fast smelting furnace, includes furnace body (1), bell (2), resistance wire heating element (3), electrical system (4) and thermocouple temperature measurement mechanism (5), furnace body (1) bottom is equipped with discharging pipe (13), discharging pipe (13) below is equipped with opens and close valve (14), its characterized in that: the furnace body (1) comprises a furnace shell (11) and a furnace pipe (12), and the bottom of the furnace pipe (12) is conical; the resistance wire heating elements (3) are distributed on the outer wall of the furnace pipe (12), the electric control system (4) is arranged on the outer wall of the furnace shell (11), and the electric control system (4) is electrically connected with the resistance wire heating elements (3); the thermocouple temperature measuring mechanism (5) comprises a temperature display unit (51) arranged outside the furnace body (1) and a high-point thermocouple (52) and a low-point thermocouple (53) which are arranged inside the furnace body (1) in an F-shaped parallel mode.
2. The foamed aluminum electrothermal rapid smelting furnace according to claim 1, characterized in that: the bottom of the furnace pipe (12) is in a step-shaped conical shape, and resistance wire heating elements are uniformly distributed on the horizontal surface and the vertical surface of the step-shaped conical shape.
3. The foamed aluminum electrothermal rapid smelting furnace according to claim 1, characterized in that: the high-point thermocouple (52) is arranged at the middle lower part of the furnace pipe (12), and the low-point thermocouple (53) is arranged at the bottom of the furnace pipe (12) and close to the discharge pipe (13).
4. The foamed aluminum electrothermal rapid smelting furnace according to claim 1, characterized in that: the resistance wire heating elements (3) are divided into two groups, namely a furnace liner wall resistance wire heating element (31) and a furnace liner bottom resistance wire heating element (32), and the electric control system (4) can independently control the two groups of heating elements.
5. The foamed aluminum electrothermal rapid smelting furnace according to claim 1, characterized in that: a through hole is formed in one side end of the furnace cover (2), and the high-point thermocouple (52) and the low-point thermocouple (53) which are arranged in parallel in an F shape penetrate through the through hole and are arranged in the furnace pipe (12).
6. The foamed aluminum electrothermal rapid smelting furnace according to claim 1, characterized in that: the top surface of the furnace cover (2) is provided with an exhaust hole (21) which can be opened and closed.
7. The foamed aluminum electrothermal rapid smelting furnace according to claim 1, characterized in that: an exhaust ring (22) which can be opened and closed is arranged on the top surface of the furnace cover (2).
8. The foamed aluminum electrothermal rapid smelting furnace according to claim 1, characterized in that: and both the high-point thermocouple (52) and the low-point thermocouple (53) are provided with silicon carbide ink protective sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502853.3U CN209877623U (en) | 2019-04-15 | 2019-04-15 | Foamed aluminum electrothermal rapid smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502853.3U CN209877623U (en) | 2019-04-15 | 2019-04-15 | Foamed aluminum electrothermal rapid smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209877623U true CN209877623U (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920502853.3U Active CN209877623U (en) | 2019-04-15 | 2019-04-15 | Foamed aluminum electrothermal rapid smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209877623U (en) |
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2019
- 2019-04-15 CN CN201920502853.3U patent/CN209877623U/en active Active
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Address after: 628000 Sichuan Zhejiang cooperation Park, Guangyuan economic and Technological Development Zone, Sichuan Province Patentee after: Sichuan Zhongxin composite material Co.,Ltd. Address before: Sichuan-Zhejiang Cooperation Park, Guangyuan Economic and Technological Development Zone, Guangyuan City, Sichuan Province, 628000 Patentee before: SICHUAN CRRC COMPOSITE MATERIAL COMPOSITION CO.,LTD. |