CN204276835U - A kind of aluminium liquid delivery chute attemperator with exhaust gas processing device - Google Patents

Abstract

The utility model provides an aluminum liquid conveying tank heat preservation device with a tail gas treatment device, which comprises a collecting cover, a melting furnace, a front conveying pipe, a heat preservation cover, a rear conveying pipe and a tail gas processing device, and the collecting cover is installed in the melting furnace Above the smoke outlet; the collection cover is sealed and connected to the input port at the front end of the heat preservation cover through the front conveying pipe, and the output port at the rear end of the heat preservation cover is connected to the exhaust gas treatment device through the rear conveying pipe. The utility model collects the waste heat of the flue gas of the smelting furnace through the collection cover, and transmits it to the inner cavity of the hollow heat preservation cover through the pipeline, heats the heat preservation cover, realizes the recycling of the waste heat, and effectively prevents the temperature loss during the transportation of the aluminum liquid. Low melting point components crystallize in advance, forming element-enriched areas, resulting in component segregation, and forming a crystallization difference layer in the billet, which is prone to crack defects and performance differences in the subsequent production of plates. At the same time, the exhaust gas treatment device reduces smoke air pollution to the environment.

Description

A heat preservation device for aluminum liquid delivery tank with tail gas treatment device

technical field

The utility model relates to the technical field of smelting furnaces, in particular to a heat preservation device for an aluminum liquid delivery tank with a tail gas treatment device.

Background technique

The aluminum processing and production industry has experienced decades of development. With a large number of introductions and its own efforts to develop, a complete industrial chain from primary aluminum production to aluminum product sales has been formed in China, and every link in production Almost all have experienced technological innovations. However, the development of industry has also brought about its negative effects. Today, when energy is increasingly tense and environmental pollution is no longer just a topic of public discussion, it exists as a strong control standard for enterprises. The aluminum smelting furnace Yield and energy consumption control will be particularly important. The equipment used in aluminum smelting has also experienced many years of change and development. Basically, every technological progress has played a great role in the development of the national economy, the improvement and guidance of the development of domestic subsidiary industries, and the protection of the environment. promotion.

The molten aluminum in the smelting furnace needs to be transported to the static holding furnace through the molten aluminum conveying tank. In order to prevent the low melting point components from crystallizing in advance during the transportation of the molten aluminum, the element enrichment zone is formed, resulting in component segregation, and in the billet In the process of forming a layer of crystallization difference, it is easy to produce crack defects and performance differences in the subsequent production of the plate. Usually, an insulation cover is added to the aluminum liquid conveying tank, but if the transportation distance is long, the insulation capacity of the insulation cover is far from meeting the demand. It is easy to produce crack defects and performance differences in the production of subsequent plates.

In the existing smelting furnace, the smoke collection pipe is directly connected to the dust collection chamber through the induced draft fan, and the dust collection chamber is connected to the chimney. Harmful gases such as pollutants, and a large amount of carbon dioxide are produced, which increases the temperature of the earth's surface and produces a greenhouse effect. Existing smelting furnaces have a large number of problems harmful to the living environment of human beings, and the smelting costs are high.

Utility model content

In order to solve the above-mentioned technical problems, the utility model provides a heat preservation device for liquid aluminum conveying tank with tail gas treatment device. The rear conveying pipe and exhaust gas treatment device not only solve the problems of heat waste and air pollution, but also solve the problem that the insulation capacity of the insulation cover cannot meet the demand.

The utility model is realized through the following technical solutions.

The utility model provides an aluminum liquid conveying tank heat preservation device with a tail gas treatment device, which includes a collection cover, a melting furnace, a front conveying pipe, a heat preservation cover, a rear conveying pipe and a tail gas treatment device. The collection cover is installed in the melting furnace Above the smoke outlet; the collection cover is sealed and connected to the input port at the front end of the heat preservation cover through the front conveying pipe, and the output port at the rear end of the heat preservation cover is connected to the exhaust gas treatment device through the rear conveying pipe.

The length of the heat preservation cover is less than or equal to the length of the molten aluminum delivery tank.

A fan is installed inside at least one of the front delivery pipe and the rear delivery pipe.

The tail gas treatment device includes a flue gas filter and a dust settling chamber, the flue gas filter is sealed and connected with the rear conveying pipe, and the bottom of the flue gas filter is connected with the dust settling chamber.

The dust settling chamber is equipped with an automatic dust remover.

The beneficial effect of the utility model is that: the flue gas waste heat of the smelting furnace is collected through the collection cover, and is transmitted to the inner cavity of the hollow heat preservation cover through the pipeline, and the heat preservation cover is heated to realize the recycling of waste heat, effectively preventing the aluminum liquid from During the transportation process, the temperature drops and the low-melting point components crystallize in advance, forming an element-enriched area, resulting in component segregation, and forming a crystallization difference layer in the billet, which is prone to crack defects and performance differences in the subsequent sheet production. The treatment device reduces the pollution of the flue gas to the environment.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is A-A sectional view of Fig. 1;

In the figure: 1-collecting hood, 2-smelting furnace, 3-front conveying pipe, 4-insulation cover, 5-rear conveying pipe, 6-flue gas filter, 7-stationary holding furnace, 8-aluminum liquid conveying tank , 9-aluminum liquid, 10-fan, 11-dust settling chamber.

Detailed ways

The technical solution of the utility model is further described below, but the scope of protection is not limited to the description.

As shown in Figure 1 and Figure 2, an aluminum liquid conveying tank heat preservation device with a tail gas treatment device includes a collection cover 1, a melting furnace 2, a front conveying pipe 3, a heat preservation cover 4, a rear conveying pipe 5 and a tail gas treatment device , the collection cover 1 is installed above the smoke outlet of the smelting furnace 2; the collection cover 1 is sealed and connected to the input port at the front end of the heat preservation cover 4 through the front conveying pipe 3, and the output port at the rear end of the heat preservation cover 4 passes through the rear The delivery pipe 5 is connected with the tail gas treatment device. Further use the waste heat of the flue gas of the smelting furnace to make the flue gas pass through the inner cavity of the hollow insulation cover 4 to heat the insulation cover, thereby ensuring that the temperature of the molten aluminum 9 in the molten aluminum delivery tank will not drop, which not only ensures the processing of the product quality without the need to increase investment.

The length of the heat preservation cover 4 is less than or equal to the length of the liquid aluminum delivery tank 8 . The heat preservation cover 4 can reduce the heat dissipation of the molten aluminum during the transportation process, and at the same time heat the molten aluminum in the delivery tank through the flue gas, effectively preventing the early crystallization of low melting point components due to the temperature drop during the transportation of the molten aluminum, forming element-rich elements. The accumulation area leads to composition segregation and the formation of a crystallization difference layer in the billet, which is prone to crack defects and performance differences in the subsequent production of plates.

At least one of the front conveying pipe 3 and the rear conveying pipe 5 is installed with a fan 10 inside. Ensure the smooth flow of flue gas in the pipeline, and ensure the thermal insulation effect of the thermal insulation cover 4 .

The exhaust gas treatment device includes a flue gas filter 6 and a dust settling chamber 11, the flue gas filter 6 is sealed and connected to the rear delivery pipe 5, the bottom of the flue gas filter 6 is connected to the dust settling chamber 11, the An automatic dust remover is provided in the dust settling chamber 11 . After the exhaust gas is filtered, the remaining gas is settled to ensure that no harmful gas is discharged. An automatic dust cleaner is installed in the dust settling chamber 11, which can effectively reduce the labor load of workers and realize automatic operation.

Claims (5)

1. A liquid aluminum conveying tank insulation device with a tail gas treatment device, comprising a collection cover (1), a smelting furnace (2), a front conveying pipe (3), an insulating cover (4), a rear conveying pipe (5) and Tail gas treatment device, the collection cover (1) is installed above the smoke outlet of the smelting furnace (2), characterized in that the collection cover (1) passes through the front delivery pipe (3) and the front end of the heat preservation cover (4) The input port of the heat preservation cover (4) is sealed and connected, and the output port at the rear end of the heat preservation cover (4) is connected with the exhaust gas treatment device through the rear delivery pipe (5). 2 . The thermal insulation device for molten aluminum delivery tank with tail gas treatment device according to claim 1 , characterized in that: the length of the thermal insulation cover ( 4 ) is less than or equal to the length of the molten aluminum delivery tank ( 8 ). 3. The aluminum liquid conveying tank insulation device with tail gas treatment device as claimed in claim 1, characterized in that: at least one of the front conveying pipe (3) and the rear conveying pipe (5) is equipped with a fan ( 10). 4. The heat preservation device for molten aluminum conveying tank with tail gas treatment device as claimed in claim 1, characterized in that: said tail gas treatment device comprises a flue gas filter (6) and a dust settling chamber (11), and said flue gas The air filter (6) is sealed and connected with the rear conveying pipe (5), and the bottom of the smoke filter (6) is connected with the dust settling chamber (11). 5. The heat preservation device for the aluminum liquid conveying tank with the tail gas treatment device according to claim 4, characterized in that: the dust settling chamber (11) is provided with an automatic dust remover.