Natural gas secondary aluminum smelting furnace

Abstract

The utility model belongs to the technical field of smelting furnaces, and particularly relates to a natural gas secondary aluminum smelting furnace which comprises a smelting furnace body, a feeding component arranged in the smelting furnace body and used for conveying and taking out materials, and an exhaust component connected to the smelting furnace body and used for recycling waste heat generated after combustion and exhausting waste gas after purification. The heat supply part is arranged on the outer side of the smelting furnace main body and is used for supplying heat to the heat preservation cavity, reducing heat dissipation of the smelting furnace main body and working of the exhaust pump, combusted gas is conveyed into the curved heat exchange pipe through the gas pipe, waste heat of the combusted gas is exchanged, the waste heat of the gas is absorbed by liquid in the water tank, and a water source in the water tank is heated; and then the heated water source is supplied into the heat preservation cavity through the circulating pump, so that the smelting furnace main body plays an auxiliary heat preservation role, heat is recycled, and in addition, waste gas generated after combustion is subjected to auxiliary purification treatment through the arranged purification box.

Description

TECHNICAL FIELD

[0001] The utility model relates to smelting furnace technical field, concretely is a kind of natural gas recycled aluminium smelting furnace. BACKGROUND

[0002] Recycled aluminium mainly appears in the form of aluminium alloy. Compared with electrolytic aluminium, the types and emissions of waste gas pollutants generated in the production process of recycled aluminium are less, and it has significant advantages in environmental protection, energy saving and consumption reduction. Under the same conditions, the investment of building factory for producing recycled aluminium is only one tenth of that for producing primary aluminium, so recycled aluminium becomes a trend.

[0003] Recycled aluminium needs to be smelted by smelting furnace, and smelting furnace is a smelting equipment widely used in the field of metal and non-metal smelting. The traditional vertical smelting furnace uses coke as fuel, and the metal or non-metal charge in the furnace directly contacts with coke. Air blast is used to support combustion so that coke burns. The high temperature generated by the combustion of coke is used to directly melt metal and non-metal. The biggest disadvantage of this traditional vertical smelting furnace is high energy consumption, heavy pollution and low efficiency. Moreover, the waste heat cannot be utilized, resulting in waste of heat loss of smelting furnace. Therefore, it is urgent to propose a natural gas recycled aluminium smelting furnace. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the present utility model.

[0005] Therefore, the purpose of the present utility model is to provide a natural gas recycled aluminium smelting furnace. The exhaust pump works, and the combusted gas is transported into the curved heat exchange pipe through the gas pipe. The waste heat of the combusted gas is exchanged, and the waste heat of the gas is absorbed by the liquid in the water tank. The water source placed in the water tank is heated, and then the heated water source is supplied to the heat preservation chamber through the circulating pump to assist the heat preservation of the smelting furnace body. The heat is recovered, and the exhaust gas generated after combustion is assisted in purification treatment through the setting of the purification tank. To solve the above technical problems, according to one aspect of the present utility model, the present utility model provides the following technical scheme:

[0006] A natural gas recycled aluminium smelting furnace comprises:

[0007] The smelting furnace body, which serves as a smelting chamber, is provided with a heat preservation chamber in the smelting furnace body.

[0008] The feeding component is placed in the smelting furnace body to facilitate the transportation and removal of the material.

[0009] The exhaust component is connected to the smelting furnace body, reuses the waste heat generated after combustion, and discharges the exhaust gas after purification.

[0010] The exhaust component comprises an exhaust pump connected to the smelting furnace body outside corresponding to the exhaust port, and a gas pipe connected to an output end of the exhaust pump.

[0011] The curved heat exchange pipe is connected to the water tank, and a purification tank is connected to the outside of the water tank and is provided corresponding to the output port of the curved heat exchange pipe.

[0012] The heat supply component is arranged outside the smelting furnace body and supplies heat to the heat preservation chamber to reduce heat dissipation of the smelting furnace body.

[0013] The heat supply component comprises a water tank connected to the top of the smelting furnace body, a connecting pipe connected to an outlet of the water tank, a circulating pump connected to the outside of the water tank, and a water pipe connected to an output end of the circulating pump and arranged in communication with the heat preservation chamber.

[0014] As a preferred scheme of the natural gas regenerative aluminum smelting furnace, the bottom of the inside of the smelting furnace body is symmetrically and integrally connected with two groups of guide seats.

[0015] As a preferred scheme of the natural gas regenerative aluminum smelting furnace, the feeding component comprises a driving motor connected to the outside of the smelting furnace body, and a heat insulation rack slidably connected to the inside of the smelting furnace body, the output end of the driving motor is connected to a lead screw, the heat insulation rack is provided with a threaded groove matched with the lead screw, and the bottom of the heat insulation rack is provided with a sliding groove matched with the guide seat.

[0016] Compared with the prior art, the natural gas regenerative aluminum smelting furnace has the following beneficial effects:

[0017] The driving motor drives the lead screw to rotate, so that the heat insulation rack slides back and forth along the inside of the smelting furnace body, facilitating the conveying and taking out of the material, and the exhaust pump works to convey the combusted gas into the curved heat exchange pipe through the gas pipe, exchanges the waste heat of the combusted gas, and absorbs the waste heat of the gas by the liquid in the water tank to heat the water source in the water tank, and then supplies the heated water source to the heat preservation chamber through the circulating pump to assist in heat preservation of the smelting furnace body, so that the heat is recovered, and the exhaust gas generated after combustion is assisted in purification treatment through the purification tank. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the present application will be described in detail below with reference to the drawings and detailed embodiments. Obviously, 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 from these drawings without creative labor. Among them:

[0019] Fig. 1 It is a schematic diagram of the overall structure of the present application;

[0020] Fig. 2 It is a schematic diagram of the explosion structure of the present application;

[0021] Fig. 3 It is a schematic diagram of the top view structure of the present application.

[0022] In the figure: 100 smelting furnace main body, 110 guide seat, 120 heat preservation chamber, 200 feeding component, 210 driving motor, 211 screw rod, 220 heat insulation rack, 221 threaded groove, 222 sliding groove, 300 exhaust component, 310 exhaust pump, 311 air pipe, 320 curved heat exchange pipe, 330 purification tank, 331 air outlet pipe, 400 heat supply component, 410 water tank, 411 connecting pipe, 420 circulating pump, 421 water pipe. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purpose, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0025] Secondly, the present application is described in detail in combination with the schematic diagram, and in order to facilitate the description, the sectional view of the device structure will be partially enlarged without general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0026] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0027] The present application provides a natural gas regenerated aluminum smelting furnace, please refer to Figs. 1-3, including, smelting furnace body 100, feeding component 200, exhaust component 300 and heat supply component 400;

[0028] Please continue to see Figs. 1-2 , as smelting furnace body 100 of smelting chamber, smelting furnace body 100 uses natural gas as combustion raw material to smelt, and the inside bottom of smelting furnace body 100 is symmetrically integrally connected with two groups of guide seats 110, and smelting furnace body 100 is provided with a heat preservation chamber 120;

[0029] Please continue to see Figs. 1-3 , feeding component 200 is placed in smelting furnace body 100, which is convenient for conveying and taking out materials;

[0030] Feeding component 200 includes driving motor 210 screw-connected to the outside of smelting furnace body 100 and heat insulation rack 220 slidingly connected in smelting furnace body 100, the output end of driving motor 210 is connected with lead screw 211, and the inside of heat insulation rack 220 is provided with screw groove 221 screwing with lead screw 211, and the bottom of heat insulation rack 220 is provided with sliding groove 222 slidingly matched with guide seat 110 (the sliding groove and the guide seat slidingly match, and when the lead screw rotates, the heat insulation rack slides along the inside of smelting furnace body);

[0031] Action:

[0032] Driving motor 210 works, driving lead screw 211 to rotate, so that heat insulation rack slides along the inside of smelting furnace body 100, which is convenient for conveying and taking out materials;

[0033] Please continue to see Figs. 1-3 , exhaust component 300 is connected to smelting furnace body 100, which reuses the waste heat generated after combustion and discharges the exhaust gas after purification;

[0034] Exhaust component 300 includes exhaust pump 310 screw-connected to the outside of smelting furnace body 100 corresponding to the exhaust port, and the output end of exhaust pump 310 is communicated with air pipe 311, and the other end of air pipe 311 is connected with curved heat exchange pipe 320;

[0035] Exhaust pump 310 works, conveying the gas after combustion to curved heat exchange pipe 320 through air pipe 311, exchanging the waste heat of the gas after combustion, and the waste heat of the gas is absorbed by the liquid in water tank 410, heating the water source in water tank 410, and then supplying the heated water source to heat preservation chamber 120 through circulating pump 420, so as to play a role of auxiliary heat preservation of smelting furnace body 100, and make the heat be recovered;

[0036] Please continue to see Figs. 1-3 , heat supply component 400 is arranged outside smelting furnace body 100, which supplies heat to heat preservation chamber 120 and reduces the heat dissipation of smelting furnace body 100;

[0037] The heat supply component 400 comprises a water tank 410 connected to the top of the smelting furnace body 100 through a positioning bolt, a connecting pipe 411 connected to the water outlet of the water tank 410, a circulating pump 420 screwed to the outer side of the water tank 410, a water pipe 421 communicated with the heat preservation chamber 120 and arranged at the output end of the circulating pump 420;

[0038] The water source heated through heat exchange is supplied into the heat preservation chamber 120 through the circulating pump 420;

[0039] Further, the curved heat exchange pipe 320 is connected into the water tank 410, and a purification tank 330 is screwed to the outer side of the water tank 410, the purification tank 330 is arranged corresponding to the output port of the curved heat exchange pipe 320, and an exhaust pipe 331 is communicated with the exhaust port of the purification tank 330;

[0040] The exhaust gas generated after combustion is assisted in purification treatment through the purification tank 330;

[0041] Working principle: when the utility model is used, the driving motor 210 drives the screw rod 211 to rotate, so that the heat insulation rack slides along the inside of the smelting furnace body 100, facilitating the conveying and taking out of the material, at the same time, the exhaust pump 310 works, the gas after combustion is conveyed into the curved heat exchange pipe 320 through the gas pipe 311, the waste heat of the gas after combustion is exchanged, the waste heat of the gas is absorbed by the liquid in the water tank 410, the water source in the water tank 410 is heated, then the heated water source is supplied into the heat preservation chamber 120 through the circulating pump 420, so as to assist in heat preservation of the smelting furnace body 100, so that the heat is recovered, and the exhaust gas generated after combustion is assisted in purification treatment through the purification tank 330.

[0042] Although the utility model has been described above with reference to the embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the disclosed embodiments of the utility model can be combined with each other in any way, and the combinations are not exhaustively described in the specification only for the purpose of saving space and resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A natural gas reclamation aluminum smelting furnace characterized by, The utility model relates to a smelting furnace, which comprises a smelting furnace body (100) serving as a smelting chamber, a heat preservation chamber (120) arranged in the smelting furnace body (100), a feeding component (200) arranged in the smelting furnace body (100) to facilitate the feeding and taking out of materials, an exhaust component (300) connected to the smelting furnace body (100) to reuse the waste heat generated after combustion and discharge the exhaust gas after purification, a heat supply component (400) arranged outside the smelting furnace body (100) to supply heat to the heat preservation chamber (120) and reduce the heat dissipation of the smelting furnace body (100). The smelting furnace body (100) is internally connected with two groups of guide seats (110) in a symmetrical and integral manner. The feeding component (200) comprises a driving motor (210) connected to the outside of the smelting furnace body (100) and a heat insulation rack (220) slidably connected to the smelting furnace body (100), the output end of the driving motor (210) is connected with a lead screw (211), the heat insulation rack (220) is internally provided with a threaded groove (221) screwedly matched with the lead screw (211), and the bottom of the heat insulation rack (220) is provided with a sliding groove (222) slidably matched with the guide seat (110). The exhaust component (300) comprises an exhaust pump (310) connected to the outside of the smelting furnace body (100) corresponding to an exhaust port, the output end of the exhaust pump (310) is communicated with a gas pipe (311), and the other end of the gas pipe (311) is connected with a curved heat exchange pipe (320). The heat supply component (400) comprises a water tank (410) connected to the top of the smelting furnace body (100), the water outlet end of the water tank (410) is connected with a connecting pipe (411) communicated with the water tank (410), the outside of the water tank (410) is connected with a circulating pump (420), the output end of the circulating pump (420) is communicated with a water pipe (421), and the water pipe (421) is communicated with the heat preservation chamber (120). The heat supply component (400) comprises a water tank (410) connected to the top of the smelting furnace body (100), the water outlet end of the water tank (410) is connected with a connecting pipe (411) communicated with the water tank (410), the outside of the water tank (410) is connected with a circulating pump (420), the output end of the circulating pump (420) is communicated with a water pipe (421), and the water pipe (421) is communicated with the heat preservation chamber (120). ​ ​ 2. A natural gas fired aluminium smelting furnace as claimed in claim 1, characterised in that, ​ 3. A natural gas fired aluminium smelting furnace as claimed in claim 2, characterised in that, ​

Images