CN213067067U

CN213067067U - Cleaning-saving aluminum dissolution heat preservation furnace

Info

Publication number: CN213067067U
Application number: CN202020827654.2U
Authority: CN
Inventors: 许卫昌; 刘建
Original assignee: Shanghai Dajixinge Industrial Furnace Co ltd
Current assignee: Shanghai Dajixinge Industrial Furnace Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-04-27
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses an economize and clean aluminium and dissolve heat preservation stove, it includes: the furnace body, the heat exchanger and the heat-insulating burner; the furnace body is internally provided with a heat preservation chamber and a melting chamber; the heat exchanger is communicated with the top of the heat preservation chamber; the top of the heat exchanger is provided with a smoke outlet; the output end of the heat-insulating burner extends into the heat-insulating chamber, and the input end of the heat-insulating burner is communicated with a combustion-supporting air pipe; the combustion-supporting air pipe extends into the heat exchanger from the outside and is connected with the heat-insulating burner; a clapboard is arranged between the heat preservation chamber and the melting chamber; the bottom of the clapboard is provided with an aluminum liquid conduction groove. The utility model discloses simple structure easily realizes. The heat efficiency in the aluminum liquid heat preservation process can be improved, and the problem of loss caused by aluminum oxidation generated in the aluminum liquid heat preservation process is reduced. The cleaning frequency of the aluminum slag in the heat preservation chamber is reduced.

Description

Cleaning-saving aluminum dissolution heat preservation furnace

Technical Field

The utility model belongs to the technical field of the metal casting, a province cleans aluminium and dissolves heat preservation stove particularly.

Background

In the current aluminum alloy processing industry, the process requirements concerning aluminum liquid are higher and higher. The melting chamber of the existing cleaning-free aluminum dissolution holding furnace is communicated with the holding chamber, and the holding chamber is sealed. During the processing, the generated aluminum liquid flows into the heat preservation chamber from the melting chamber by spraying flame into the melting chamber. And then, realizing heat preservation and heating of the aluminum liquid entering the heat preservation chamber based on the short flame burner. The exhaust gases produced in this process are discharged directly through the melting chamber which is in communication with the holding chamber. The problems with this structure are: the high-temperature flue gas is directly discharged out of the furnace body, so that the heat efficiency in the heat preservation process is lower. Meanwhile, the melting chamber and the heat preservation chamber are always in a conducting state, so that the furnace body is easily in an oxygen-enriched state in the heating and heat preservation process, and aluminum slag is generated by oxidation in the heat preservation process. Therefore, how to develop a clean-free aluminum melting holding furnace with a new structure to overcome the above problems is a research direction for those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an economize and clean aluminium and dissolve heat preservation stove can promote the thermal efficiency of aluminium liquid heat preservation in-process, reduces the aluminium liquid heat preservation in-process simultaneously and produces the loss that aluminium oxidation caused.

The technical scheme is as follows:

a cleaning-saving aluminum dissolution holding furnace comprises: the furnace body, the heat exchanger and the heat-insulating burner; the furnace body is internally provided with a heat preservation chamber and a melting chamber; the heat exchanger is communicated with the top of the heat preservation chamber; the top of the heat exchanger is provided with a smoke outlet; the output end of the heat-insulation burner extends into the heat-insulation chamber, and the input end of the heat-insulation burner is communicated with a combustion-supporting air pipe; the combustion-supporting air pipe extends into the heat exchanger from the outside and is connected with the heat-insulating burner; a partition plate is arranged between the heat preservation chamber and the melting chamber; and an aluminum liquid conduction groove is formed in the bottom of the partition plate.

By adopting the technical scheme: and the aluminum liquid generated by the melting chamber enters the heat preservation chamber through the aluminum liquid conduction groove. Meanwhile, the heat preservation burner is ignited to heat and preserve heat of the aluminum liquid in the heat preservation chamber. Because the clapboard is arranged between the holding chamber and the melting chamber. Therefore, when the liquid level of the aluminum liquid is higher than the aluminum liquid conduction groove, the aluminum liquid isolates high-heat waste gas generated in the heat preservation process in the heat preservation chamber, and the high-heat waste gas is prevented from directly entering the melting chamber and being dissipated into the air. This portion of the hot exhaust gas enters the heat exchanger. And exchanges heat with the combustion air in the combustion air pipe in the heat exchanger. The combustion-supporting air reaches the heat-insulating burner after being heated to ignite the fuel gas, and the energy-saving effect can be achieved. Meanwhile, the exhaust gas is discharged from the heat exchanger through the smoke outlet after the heat exchange is completed. In the process, the aluminum liquid is used for realizing the air flow isolation between the heat preservation chamber and the melting chamber. Therefore, the oxygen content of the gas entering the heat preservation chamber can be controlled in the heating and heat preservation process, and the generation of aluminum oxidation caused by oxygen enrichment in the heat preservation chamber is reduced.

Preferably, the cleaning-free aluminum dissolution heat-preserving furnace is: the heat-insulating burner adopts a short-flame burner or a flat-flame burner.

By adopting the technical scheme: the flame generated by the burner is prevented from being close to the liquid level of the aluminum liquid in the heat preservation chamber, the heat preservation effect is improved, and the burning loss of the aluminum liquid is avoided.

Compared with the prior art, the utility model discloses simple structure easily realizes. The heat efficiency in the heat preservation process of the aluminum liquid can be improved, and the problem of loss caused by aluminum slag generated in the heat preservation process of the aluminum liquid is avoided.

Drawings

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:

FIG. 1 is a schematic structural view of example 1, in which a burner tip provided in a melting chamber is omitted;

fig. 2 is a partially enlarged schematic view of the thermal insulation burner in fig. 1.

The correspondence between each reference numeral and the part name is as follows:

1. a furnace body; 2. a heat preservation chamber; 3. a melting chamber; 4. a heat exchanger; 5. a heat-insulating burner; 6. a partition plate; 41. a smoke outlet; 51. and a combustion air pipe.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the following will be further described with reference to various embodiments.

Example 1 as shown in fig. 1-2:

a cleaning-saving aluminum dissolution holding furnace comprises: a furnace body 1, a heat exchanger 4 and a heat-insulating burner 5.

A heat preservation chamber 2 and a melting chamber 3 are arranged in the furnace body 1; the heat exchanger 4 is communicated with the top of the heat preservation chamber 2; the top of the heat exchanger 4 is provided with a smoke outlet 41; the output end of the heat preservation burner 5 extends into the heat preservation chamber 2, and the input end of the heat preservation burner is communicated with a combustion air pipe 51; the combustion-supporting air pipe 51 extends into the heat exchanger 4 from the outside and is connected with the heat-insulating burner 5; a partition plate 6 is arranged between the heat preservation chamber 2 and the melting chamber 3; and an aluminum liquid conduction groove is formed at the bottom of the partition plate 6. Specifically, the method comprises the following steps: the height of the partition board 6 is 15cm, and the height of the aluminum liquid conduction groove is 5 cm. In this example: the heat-insulating burner 5 is a short-flame burner. The combustion air pipe 51 is communicated with an external blower through a conduit.

In practice, the working process is as follows:

the aluminum liquid generated by the melting chamber 3 passes through the bottom of the partition board 6 through the aluminum liquid conduction groove and enters the heat preservation chamber 2. Meanwhile, the heat preservation burner 5 is ignited to heat and preserve the heat of the aluminum liquid in the heat preservation chamber 2. When the liquid level of the aluminum liquid is higher than the aluminum liquid conduction groove, the aluminum liquid isolates high-heat waste gas generated in the heat preservation process in the heat preservation chamber 2, and the high-heat waste gas is prevented from directly entering the melting chamber 1 and being dissipated into the air. This portion of the hot exhaust gas enters heat exchanger 4. And exchanges heat with the combustion air in the combustion air pipe 51 in the heat exchanger 4. The combustion-supporting air reaches the heat-insulating burner 5 after being heated to ignite the fuel gas, and the energy-saving effect can be achieved. Meanwhile, the exhaust gas is discharged from the heat exchanger 4 through the smoke outlet 41 after the heat exchange is completed.

The above description is only for the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. The protection scope of the present invention is subject to the protection scope of the claims.

Claims

1. A cleaning-saving aluminum dissolution holding furnace comprises: a furnace body (1); a heat preservation chamber (2) and a melting chamber (3) are arranged in the furnace body (1);

the method is characterized in that: the device also comprises a heat exchanger (4) and a heat-insulating burner (5); the heat exchanger (4) is communicated with the top of the heat preservation chamber (2); the top of the heat exchanger (4) is provided with a smoke outlet (41); the output end of the heat-insulating burner (5) extends into the heat-insulating chamber (2), and the input end of the heat-insulating burner is communicated with a combustion-supporting air pipe (51); the combustion-supporting air pipe (51) extends into the heat exchanger (4) from the outside and is connected with the heat-insulating burner (5); a partition plate (6) is arranged between the heat preservation chamber (2) and the melting chamber (3); and an aluminum liquid conduction groove is formed at the bottom of the partition plate (6).

2. The clean-saving aluminum dissolution holding furnace as set forth in claim 1, wherein: the heat-insulating burner (5) adopts a short-flame burner or a flat-flame burner.