CN205505768U - Aluminum smelting stove that energy -saving residual heat recycling utilized - Google Patents

Abstract

The utility model provides an aluminum smelting stove that energy -saving residual heat recycling utilized, includes a smelting furnace, it is equipped with the preheater to smelt furnace body one side, the collection cover that is used for collecting the flue gas waste heat is installed to the combustion chamber outlet flue top of smelting furnace, collect the cover and be connected to the preheater through the induced air pipeline, introduce the preheater with exhaust waste heat in the smelting furnace flue gas in, heat for the aluminium pig in the preheater, realize the cyclic utilization of waste heat between preheater and the smelting furnace, preheater upper portion cigarette outlet is connected with the flue gas surge drum, the flue gas surge drum is connected to tail gas processing apparatus, handles the flue gas in the preheater. The utility model discloses the transformation of suitable various smelting furnaces, simple structure, reasonable in design, the consumption of saving fuel such as coal reduces and smelts the cost, and harmful gas and also corresponding reduction of carbon dioxide gas that the fuel burning produced have reduced environmental pollution, have reduced the greenhouse benefit, realize the cyclic utilization of discarded object, accord with the energy -concerving and environment -protective policy of government.

Description

Energy-saving aluminum smelting furnace for waste heat recycling

technical field

The utility model relates to the technical field of smelting furnaces, in particular to an energy-saving aluminum smelting furnace for recycling waste heat.

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.

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. In a word, the existing smelting furnace has a lot of problems harmful to the living environment of human beings, and the smelting cost is high.

Utility model content

The technical problem to be solved by the utility model is to provide an aluminum smelting furnace with simple equipment modification and good economic benefits for energy-saving waste heat recycling.

The technical problem to be solved by the utility model adopts the following technical solutions to realize:

An energy-saving aluminum smelting furnace for waste heat recycling, comprising a smelting furnace, a preheating furnace is provided on one side of the smelting furnace body, and a collector for collecting waste heat of flue gas is installed above the smoke outlet of the combustion chamber of the smelting furnace. The collection cover is connected to the preheating furnace through the air duct, and the waste heat discharged from the flue gas of the smelting furnace is introduced into the preheating furnace to heat the aluminum blocks in the preheating furnace, realizing the preheating furnace and the melting furnace Recycling of waste heat between, the smoke outlet on the upper part of the preheating furnace is connected with a flue gas collection tube, and the flue gas collecting tube is connected to the tail gas treatment device to process the flue gas in the preheating furnace;

The preheating furnace has a vertical rectangular structure, and the top of the preheating furnace is provided with a feeding port. Below the feeding port, there are two layers of criss-crossing retaining rollers installed in the furnace body to change the regenerated aluminum block into a flood discharge type. The way of falling falls, slowing down its falling speed.

The bottom of the front side of the smelting furnace is provided with an aluminum discharge port and a slag discharge port, the side of the smelting furnace is provided with an oxygen-enriched gas injection port, and an oxygen-enriched gas spray gun is arranged at the oxygen-enriched gas injection port.

The exhaust gas treatment device includes a flue gas filter.

The beneficial effects of the utility model are: the utility model is suitable for the transformation of various smelting furnaces, has a simple structure and a reasonable design, saves fuel consumption such as coal, reduces smelting costs, and correspondingly reduces harmful gases and carbon dioxide gas produced by fuel combustion. Environmental pollution is reduced, greenhouse benefits are reduced, and waste recycling is realized, which is in line with the government's energy-saving and environmental protection policies.

Description of drawings

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

detailed description

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific illustrations.

As shown in Figure 1, an energy-saving aluminum smelting furnace for waste heat recycling includes a smelting furnace 10, a preheating furnace 20 is provided on one side of the smelting furnace body 10, and a device for The collection hood 30 for collecting the waste heat of the flue gas, the collection hood 30 is connected to the preheating furnace 20 through the air duct 301, and the waste heat in the flue gas discharged from the smelting furnace 10 is introduced into the preheating furnace 20, which is the heat in the preheating furnace 20. The aluminum block is heated, and the heated aluminum block is sent to the smelting furnace 10 through the conveying mechanism to realize the recycling of waste heat between the preheating furnace 20 and the smelting furnace 10. 201 , the flue gas collection tube 201 is connected to the tail gas treatment device 40 , and the tail gas treatment device 40 includes a flue gas filter to treat the flue gas in the preheating furnace 20 .

The preheating furnace 20 is a vertical rectangular structure. The top of the preheating furnace 20 is provided with a feeding port 202, and below the feeding port 202 is located in the furnace body. There are upper and lower layers of criss-crossing retaining rollers 203, so as to change the regenerated aluminum block into a flood discharge type. The way of falling falls, slowing down its falling speed. The front bottom of the smelting furnace 10 is provided with an aluminum discharge port and a slag discharge port, and the side of the smelting furnace 10 is provided with an oxygen-enriched gas injection port 101, and an oxygen-enriched gas injection port 101 is provided with an oxygen-enriched spray gun 102.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (3)

1. An energy-saving aluminum smelting furnace for waste heat recycling, comprising a smelting furnace, a preheating furnace is provided on one side of the smelting furnace body, and a device for collecting waste heat of flue gas is installed above the smoke outlet of the combustion chamber of the smelting furnace The collection cover is connected to the preheating furnace through the air duct, and the waste heat discharged from the flue gas of the smelting furnace is introduced into the preheating furnace. The smoke outlet on the upper part of the preheating furnace is connected with a smoke collection tube The flue gas collection tube is connected to the tail gas treatment device; the preheating furnace is a vertical rectangular structure, the top of the preheating furnace is provided with a feeding port, and the lower part of the feeding port is located in the furnace body and is equipped with two layers of criss-crossing Stop roller. 2. The energy-saving aluminum smelting furnace for waste heat recycling according to claim 1, characterized in that: the bottom of the front side of the smelting furnace is provided with an aluminum discharge port and a slag discharge port, and the side of the smelting furnace is provided with an oxygen-enriched furnace The gas injection inlet is provided with an oxygen-enriched spray gun at the oxygen-enriched gas injection inlet. 3. The energy-saving aluminum smelting furnace for waste heat recycling according to claim 1, wherein the exhaust gas treatment device includes a flue gas filter.