Energy-saving refining furnace

Abstract

The utility model relates to an energy-saving refining furnace, and belongs to the technical field of refining furnaces. Comprising a furnace body, a heat exchange cover, a cold water tank and a treatment tank, the heat exchange cover is fixedly connected to the side face of the furnace body, an exhaust pipe communicated with the heat exchange cover is arranged on the side face of the furnace body, the treatment tank is fixedly connected to the upper end of the furnace body and communicated with the heat exchange cover through a connecting pipe, and the cold water tank is fixedly connected to the lower end of the furnace body. The cold water tank is communicated with the heat exchange cover through two liquid conveying pipes, a water pump is arranged in the cold water tank, and the output end of the water pump is communicated with one liquid conveying pipe. The cold water tank is arranged to be matched with the heat exchange cover, gas exhausted by the refining furnace can be cooled, influences caused by an activated carbon filter screen and an HEPA filter screen on the treatment box are reduced through the cooled gas, meanwhile, heat of the gas is effectively utilized, the heat utilization efficiency is improved, and energy is saved.

Description

Technical Field

[0001] This utility model relates to an energy-saving refining furnace, belonging to the field of refining furnace technology. Background Technology

[0002] Refining furnaces are widely used in the production of iron and steel and non-ferrous metals. They are key equipment in the metallurgical industry for metal refining, mainly using physical and chemical methods to remove impurities from metals and improve their purity and quality.

[0003] A search revealed existing utility model patent documents with application number CN202220269835.7 entitled "An Energy-Saving Refining Furnace". In order to reduce the harm of direct emissions of exhaust gas to the air, the existing technology adopts a technical method of exhaust gas treatment and heat recovery. However, the waste heat recovery in the exhaust gas in this prior art is not thorough enough, resulting in heat waste. At the same time, the high-heat gas discharged from the refining furnace will affect the service life of activated carbon filter and HEPA filter. Utility Model Content

[0004] The technical problem this invention aims to solve is that the waste heat recovery and utilization in the exhaust gas of existing energy-saving refining furnaces is not thorough enough, resulting in heat waste. At the same time, the high-heat gas discharged from the refining furnace will affect the service life of activated carbon filters and HEPA filters.

[0005] To address the aforementioned problems, this utility model provides an energy-saving refining furnace, comprising a furnace body, a heat exchange hood, a cold water tank, and a processing tank. The heat exchange hood is fixedly connected to the side of the furnace body, and the side of the furnace body is provided with an exhaust pipe communicating with the heat exchange hood. The processing tank is fixedly connected to the upper end of the furnace body and communicates with the heat exchange hood through a connecting pipe. The cold water tank is fixedly connected to the lower end of the furnace body and is connected to the heat exchange hood through two liquid delivery pipes. A water pump is provided inside the cold water tank, and the output end of the water pump is connected to one liquid delivery pipe.

[0006] Furthermore, the heat exchange hood is U-shaped and fixedly connected to three sides of the furnace body.

[0007] Furthermore, the infusion tube is equipped with an electric valve at one end inside the cold water tank.

[0008] Furthermore: the two exhaust pipes are located on opposite sides of the upper end of the furnace body, and the connecting pipe is located in the middle of the upper end of the heat exchange hood.

[0009] Furthermore, the connection points between the furnace body and the heat exchange hood are all made of metal thermally conductive materials.

[0010] Furthermore, the lower end of the furnace body is provided with several evenly distributed support legs.

[0011] The advantages of this utility model compared with the prior art are:

[0012] This patented technology, by setting up a cold water tank in conjunction with a heat exchange hood, can cool the gas discharged from the refining furnace. The cooled gas reduces the impact of the activated carbon filter and HEPA filter on the treatment box, while effectively utilizing the heat of the gas, improving the efficiency of heat utilization, and saving energy. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a cross-sectional view of an energy-saving refining furnace according to the present invention.

[0015] Figure 2 This is a structural diagram of an energy-saving refining furnace according to the present invention.

[0016] Figure 3 This is a structural diagram of a filter screen plate for an energy-saving refining furnace according to this utility model.

[0017] Figure 4 This is a structural diagram of the anti-blocking mechanism of an energy-saving refining furnace according to this utility model.

[0018] In the attached image:

[0019] 1. Furnace body; 11. Exhaust pipe; 12. Support leg; 2. Heat exchange hood; 3. Cold water tank; 31. Infusion pipe; 32. Water pump; 33. Electric valve; 4. Processing tank; 41. Connecting pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Combined with appendix Figure 1-4This utility model provides an energy-saving refining furnace, including a furnace body 1, a heat exchange hood 2, a cold water tank 3, and a processing tank 4. The heat exchange hood 2 is U-shaped and fixedly connected to three sides of the furnace body 1. The connection between the furnace body 1 and the heat exchange hood 2 is made of metal heat-conducting material. The lower end of the furnace body 1 is provided with several evenly distributed support legs 12. Two exhaust pipes 11 are provided on opposite sides of the upper end of the furnace body 1. The processing tank 4 is fixedly connected to the upper end of the furnace body 1 and is connected to the heat exchange hood 2 through a connecting pipe 41. The connecting pipe 41 is located in the middle of the upper end of the heat exchange hood 2. The cold water tank 3 is fixedly connected to the lower end of the furnace body 1. The cold water tank 3 is connected to the heat exchange hood 2 through two liquid delivery pipes 31. A water pump 32 is provided in the cold water tank 3. The output end of the water pump 32 is connected to a liquid delivery pipe 31. An electric valve 33 is provided at one end of the liquid delivery pipe 31 inside the cold water tank 3.

[0022] Combined with appendix Figure 1-4 Before use, cold water from the cold water tank 3 is pumped into the heat exchange hood 2 by the water pump 32. At this time, the electric valve 33 of the infusion pipe 31, which is not connected to the water pump 32, is in the closed state. The cold water from the cold water tank 3 can be pumped into or discharged from the heat exchange hood 2 by opening and closing the corresponding electric valve 33 at any time, thereby adjusting the water volume in the heat exchange hood 2. During use, the high-temperature gas from the furnace body 1 is discharged into the heat exchange hood 2 through the exhaust pipe 11. At the same time, the heat on the surface of the furnace body 1 is also transferred to the heat exchange hood 2 through the metal heat-conducting material. The water in the heat exchange hood 2 absorbs the heat and the temperature rises, thereby effectively reducing the heat loss of the furnace body 1, maintaining the temperature of the furnace body 1, thereby improving the efficiency of heat utilization of the furnace body 1 and saving energy.

[0023] Combined with appendix Figure 1 , 2 4. During use, the moisture in the heat exchange hood 2 absorbs heat, reducing the temperature of the gas discharged to the treatment box 4 through the connecting pipe 41, thereby reducing the impact of high-heat gas on the service life of the activated carbon filter or HEPA filter in the treatment box 4.

[0024] The working principle of this application is as follows:

[0025] This patent utilizes a cold water tank 3 in conjunction with a heat exchange hood 2. During operation, the high-temperature gas from the furnace body 1 is discharged into the heat exchange hood 2 through the exhaust pipe 11. Simultaneously, the heat from the surface of the furnace body 1 is transferred to the heat exchange hood 2 via the metal heat-conducting material. The moisture in the heat exchange hood 2 absorbs the heat, raising its temperature and effectively reducing heat loss from the furnace body 1, thus maintaining the furnace body 1 temperature and improving the efficiency of heat utilization from the furnace body 1, saving energy. During use, because the moisture in the heat exchange hood 2 absorbs the heat, it lowers the temperature of the gas discharged into the processing chamber 4 through the connecting pipe 41, thereby reducing the impact of high-heat gas on the service life of the activated carbon filter or HEPA filter in the processing chamber 4. At the same time, it effectively utilizes the heat of the gas, improving the efficiency of heat utilization and saving energy.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An energy-saving refining furnace, characterized in that: The furnace includes a furnace body (1), a heat exchange hood (2), a cold water tank (3), and a processing tank (4). The heat exchange hood (2) is fixedly connected to the side of the furnace body (1). The side of the furnace body (1) is provided with an exhaust pipe (11) that communicates with the heat exchange hood (2). The processing tank (4) is fixedly connected to the upper end of the furnace body (1) and communicates with the heat exchange hood (2) through a connecting pipe (41). The cold water tank (3) is fixedly connected to the lower end of the furnace body (1). The cold water tank (3) is connected to the heat exchange hood (2) through two liquid delivery pipes (31). The cold water tank (3) is provided with a water pump (32). The output end of the water pump (32) is connected to a liquid delivery pipe (31).

2. The energy-saving refining furnace according to claim 1, characterized in that: The heat exchange cover (2) is U-shaped and fixedly connected to the three sides of the furnace body (1) to adapt to the furnace body (1).

3. The energy-saving refining furnace according to claim 1, characterized in that: The infusion tube (31) is equipped with an electric valve (33) at one end inside the cold water tank (3).

4. The energy-saving refining furnace according to claim 1, characterized in that: The two exhaust pipes (11) are located on opposite sides of the upper end of the furnace body (1), and the connecting pipe (41) is located in the middle of the upper end of the heat exchange hood (2).

5. An energy-saving refining furnace according to claim 4, characterized in that: The connection between the furnace body (1) and the heat exchange hood (2) is made of metal thermally conductive material.

6. An energy-saving refining furnace according to claim 5, characterized in that: The furnace body (1) has several evenly distributed support legs (12) at its lower end.

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