Casting smelting furnace

Abstract

The utility model discloses a casting smelter, which relates to the field of industrial manufacturing and comprises a smelter body, a smelter seat is arranged at the bottom end of the smelter body, a bowl chimney is arranged at the joint of the inside of the smelter seat and the bottom end of the smelter body, a lower gathering hole is arranged at the bottom end of the bowl chimney, and an upper fire hole is arranged at the top end of the bowl chimney. A cylindrical part structure is arranged at the bottom end of the furnace body, a first inner container is arranged in the middle of the furnace body, a second inner container is arranged at the top end of the first inner container, and an auxiliary structure is arranged at the top end of the second inner container, according to the casting smelting furnace, the cylindrical part structure at the bottom end of the furnace body is connected with the edge of the top end of the furnace base, and the bowl chimney is placed at the joint of the furnace base and the bottom end of the furnace body; a user connects combustion-supporting appliances such as fuel gas with the lower gathering hole in the bottom end of the bowl chimney in a clamped mode, at the moment, flames guided out by the combustion-supporting appliances such as external fuel gas penetrate through the lower gathering hole in the bottom end of the bowl chimney, enter the bowl chimney and then are gathered, the flame output strength is enhanced through the upper fire holes in the top end of the bowl chimney, and therefore the combustion efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of industrial manufacturing technology, specifically a casting furnace. Background Technology

[0002] Foundry furnaces are key pieces of equipment in the metal casting industry, used to melt raw metal materials into a liquid state to facilitate the casting of workpieces of various shapes. However, in actual operation, the inability of the flame inside the furnace to concentrate and burn is a common problem. This may be caused by factors such as improper furnace design, insufficient fuel supply, or poor air circulation.

[0003] Incomplete combustion of fuel due to an inability to focus the flame reduces the furnace's thermal efficiency and increases energy consumption. Furthermore, incomplete combustion can produce large amounts of harmful gases, such as carbon monoxide and sulfur dioxide, which not only pollute the environment but also pose health risks to operators.

[0004] Furthermore, if the generated flue gas cannot be effectively removed, it will accumulate inside the furnace, further affecting the combustion effect and creating a vicious cycle. Harmful substances in the flue gas will corrode the furnace body, shortening its service life. Simultaneously, flue gas accumulation may also trigger explosions and other safety accidents, posing a serious threat to the safety of personnel and equipment.

[0005] Therefore, solving the problems of flames failing to concentrate and combustion effectively in casting furnaces and the effective removal of flue gas is of great significance for improving furnace thermal efficiency, protecting the health of operators, protecting the environment, and ensuring production safety. Utility Model Content

[0006] The purpose of this invention is to provide a casting furnace to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a casting furnace, comprising: a furnace body, a furnace base at the bottom of the furnace body, a bowl-shaped chimney placed at the connection between the furnace base and the bottom of the furnace body, a lower gathering hole at the bottom of the bowl-shaped chimney, and an upper firing hole at the top of the bowl-shaped chimney;

[0008] A first inner liner is provided in the middle of the furnace body, a second inner liner is provided at the top of the first inner liner, and an auxiliary structure is provided at the top of the second inner liner.

[0009] Furthermore, the furnace base has a quadrangular prism structure, and the area of ​​the top of the furnace base is smaller than the area of ​​the bottom of the furnace base, which helps to prevent the furnace base from losing heat.

[0010] Furthermore, the bowl-shaped chimney has an inverted bowl structure, and the diameter of the lower converging hole is larger than the diameter of the upper fire hole, which facilitates the concentration of flames inside the bowl-shaped chimney.

[0011] Furthermore, there is a gap between the upper ignition hole and the bottom end of the first inner liner, which facilitates the upper ignition hole to provide a combustion path for the flame.

[0012] Furthermore, the auxiliary structure includes a smoke tray, an egg-shaped part, an outlet hole, and a smoke inlet hole. The top of the second inner liner is provided with a smoke tray, and the egg-shaped part is fixedly arranged in a ring at the middle of the outer side of the smoke tray. The inner side of the egg-shaped part is provided with an outlet hole, and the outer side of the egg-shaped part is provided with a smoke inlet hole. The overall cross-sectional structure of the egg-shaped part is elliptical, so that the flat horizontal length of the egg-shaped part will not affect the installation of the smoke tray.

[0013] Furthermore, the egg part has an internal cavity, and the diameter of the smoke inlet is smaller than the diameter of the outlet, which facilitates the egg part to draw in a large amount of smoke and slowly expel the smoke.

[0014] Furthermore, the upper area of ​​the smoke tray is smaller than the lower area, and the side of the smoke tray has an arc structure to facilitate installation.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model presents a quadrangular prism cavity structure as a whole through the furnace base, and the columnar part at the bottom of the furnace body is connected to the top edge of the furnace base. The bowl is placed at the connection between the furnace base and the bottom of the furnace body. The user connects the gas or other combustion aid to the lower convergence hole at the bottom of the bowl. At this time, the flame from the external gas or other combustion aid passes through the lower convergence hole at the bottom of the bowl and enters the bowl, where it is concentrated. The upper fire hole at the top of the bowl enhances the flame output intensity, thus improving the combustion efficiency.

[0017] 2. This utility model generates flue gas by melting the materials stored inside the second inner liner and the first inner liner. When a large amount of flue gas enters the smoke tray from the top of the second inner liner, the diameter of the port at the top of the smoke tray is smaller than the diameter of the port at the bottom of the smoke tray. Therefore, when the flue gas enters the middle of the smoke tray, the egg part extends the flue gas outward and discharges it. At the same time, the diameter of the outlet hole at the smoke inlet of the egg part is larger than the outlet diameter of the smoke inlet hole. In this way, the egg part can temporarily store the flue gas before discharging it into the furnace body, which inhibits the smoke exhaust effect of the furnace head and makes it easier for the user to observe the situation inside the furnace head. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first appearance structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the second appearance structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the lower structure of the first furnace body of this utility model;

[0021] Figure 4This is a schematic diagram of the lower structure of the second furnace body of this utility model;

[0022] Figure 5 This is a schematic diagram of the upper structure of the first furnace body of this utility model;

[0023] Figure 6 This is a schematic diagram of the upper structure of the second furnace body of this utility model;

[0024] Figure 7 This is a schematic diagram of the egg-shaped structure of this utility model.

[0025] In the diagram: 1. Stove head; 2. Stove body; 3. Stove base; 4. Stove bowl; 5. Lower concentrator; 6. Upper fire hole; 7. First inner liner; 8. Second inner liner; 9. Auxiliary structure; 91. Smoke tray; 92. Egg section; 93. Exit hole; 94. Smoke inlet hole. Detailed Implementation

[0026] 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.

[0027] like Figures 1-7 As shown, a casting furnace includes: a furnace body 2, a furnace base 3 at the bottom of the furnace body 2, a bowl-shaped chimney 4 placed inside the furnace base 3 at the connection with the bottom part of the furnace body 2, a lower gathering hole 5 at the bottom of the bowl-shaped chimney 4, and an upper firing hole 6 at the top of the bowl-shaped chimney 4.

[0028] A first inner liner 7 is provided in the middle of the furnace body 2, a second inner liner 8 is provided at the top of the first inner liner 7, and an auxiliary structure 9 is provided at the top of the second inner liner 8.

[0029] As for the rest, since the overall structure of the furnace base 3 is a quadrangular prism structure, and the cross-sectional area of ​​the upper end of the furnace base 3 is smaller than that of the lower end of the furnace base 3, and the cylindrical part of the bottom end of the furnace body 2 is connected to the top end of the furnace base 3, when the user puts the gas appliance or other parts into the furnace base 3 to open the flame outlet, the lower gathering hole 5 at the bottom of the bowl chimney 4 encloses a large amount of flame. Since the bowl chimney 4 is an inverted bowl structure, the bowl chimney 4 expands the flame and gathers it into the upper fire hole 6. The upper fire hole 6 guides the gathered flame to the bottom end of the first inner liner 7. At this time, the temperature of the flame is greater than the flame temperature of the furnace base 3.

[0030] This has resulted in the following effects and novel technologies:

[0031] This utility model of a casting furnace significantly improves flame concentration and combustion efficiency through its unique design. The quadrangular prism structure of the furnace base 3 and the design of the top being smaller than the bottom effectively prevents temperature dissipation and maintains a high-temperature environment inside the furnace. The inverted bowl structure of the bowl chimney 4 and the difference in diameter between the lower converging hole 5 and the upper fire hole 6 achieve full flame concentration and expansion, enhancing the flame output intensity.

[0032] When the gas appliance is engaged with the lower converging hole 5 at the bottom of the bowl chimney 4, the flame is directed through the lower converging hole 5 into the interior of the bowl chimney 4 and is effectively concentrated by the inverted bowl structure. The concentrated flame is then guided to the bottom of the first inner liner 7 through the upper ignition hole 6. At this time, the flame temperature is higher than the flame temperature of the furnace base 3, which improves the combustion efficiency.

[0033] Furthermore, the gap between the upper fire hole 6 and the bottom of the first inner liner 7 provides a stable combustion path for the flame, further optimizing the combustion process. This design not only improves the thermal efficiency of the furnace and reduces energy consumption, but also reduces the generation of harmful gases, protecting the environment and the health of operators. Overall, this utility model achieves efficient flame concentration and combustion through ingenious structural design, bringing significant technological progress to the casting industry.

[0034] like Figures 1-7 As shown, the auxiliary structure 9 includes a smoke tray 91, an egg-shaped part 92, an outlet 93, and a smoke inlet 94. The smoke tray 91 is located at the top of the second inner liner 8. The egg-shaped part 92 is fixedly arranged in a ring at the middle of the outer side of the smoke tray 91. The egg-shaped part 92 has a cavity inside. The outlet 93 is located on the inner side of the egg-shaped part 92, and the smoke inlet 94 is located on the outer side of the egg-shaped part 92. The overall cross-sectional structure of the egg-shaped part 92 is elliptical.

[0035] As for the rest, due to the smoke generated when the material inside the second inner liner 8 melts out, the smoke enters the smoke tray 91. Because the smoke tray 91 is structured with a larger top and a smaller bottom, the smoke briefly gathers inside the smoke tray 91 and then enters the egg section 92 on the outside of the smoke tray 91. Since the outlet hole 93 is the position for the smoke to enter and the smoke inlet hole 94 is the position for the smoke to exit, and the egg section 92 contains a cavity, the egg section 92 can also temporarily store the smoke. The outlet hole 93 is larger than the egg section 92, so the outlet hole 93 allows the smoke to quickly enter the egg section 92 and then slowly exit from the smoke inlet hole 94 into the interior of the furnace body 2, thereby preventing excessive smoke from being discharged from the furnace head 1.

[0036] Specifically, through the ingenious design of auxiliary structure 9, the problem of flue gas emission is effectively solved, and the user experience and safety of the furnace are improved. The upper and lower structure of the smoke pan 91 allows the flue gas to be temporarily gathered inside and then enter the egg section 92. The elliptical cross-section structure and cavity design of the egg section 92 allow it to temporarily store the flue gas and quickly draw it in through the larger outlet hole 93, and then slowly discharge it through the smaller smoke inlet hole 94, thus avoiding excessive exhaust of the flue gas from the furnace head 1.

[0037] When the material inside the second inner liner 8 melts and produces smoke, the smoke enters the smoke tray 91 and is guided to the egg section 92. Since the diameter of the outlet 93 is larger than that of the smoke inlet 94, the smoke is stored in the egg section 92 for a short time and then slowly discharged into the furnace body 2, which effectively inhibits the smoke exhaust effect of the burner head 1 and allows the user to clearly observe the situation inside the burner head 1.

[0038] Furthermore, the upper area of ​​the smoke tray 91 is smaller than the lower area, and the sides are curved, which facilitates installation. This design not only improves the emission efficiency of flue gas and reduces the impact of harmful gases on the environment and operators, but also enhances the sealing performance and service life of the furnace. In summary, this utility model, through the innovative design of the auxiliary structure 9, achieves effective control and emission of flue gas, bringing significant technical improvements to casting furnaces.

[0039] Working principle: When using this foundry furnace, firstly, the external gas appliance is placed inside the furnace base 3, and the gas appliance is connected to the lower converging hole 5 at the bottom of the bowl 4. At this time, the flame bursts out from the bowl 4 to the upper fire hole 6 and then exits. The overall structure of the bowl 4 has the effect of converging the flame. The user puts the material to be melted into the second inner liner 8 and the first inner liner 7 from the furnace head 1. When the material inside the first inner liner 7 and the second inner liner 8 is melted and smoke is generated, the smoke bursts out from the smoke plate 91. The egg part 92 arranged in a ring on the outside of the smoke plate 91 comes into contact with the smoke. The part of the egg part 92 that absorbs the smoke is the outlet hole 93. Since the diameter of the outlet hole 93 is larger than the smoke inlet hole 94 that discharges the smoke, after the smoke briefly gathers inside the egg part 92, the smoke inlet hole 94 slowly discharges the smoke into the interior of the furnace body 2, thereby preventing the violent discharge of smoke from the furnace head 1. This is the working principle of the foundry furnace.

[0040] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A foundry furnace comprising: The utility model relates to a kind of stove, including furnace body (2), furnace base (3) and bowl chimney (4), furnace base (3) is arranged at the bottom end of furnace body (2), and bowl chimney (4) is placed in the inside of furnace base (3) and the bottom end part connection of furnace body (2). First liner (7) is arranged in the middle of furnace body (2), and second liner (8) is arranged at the top end of first liner (7), and auxiliary structure (9) is arranged at the top end of second liner (8).

2. A casting furnace as claimed in claim 1, characterized in that The outer shape of furnace base (3) is quadrangular prism structure, and the area of the top end of furnace base (3) is less than the area of the bottom end of furnace base (3).

3. A casting furnace as claimed in claim 1, characterized in that Bowl chimney (4) is inverted-bowl structure, and the diameter of lower gathering hole (5) is greater than the diameter of upper fire hole (6).

4. A casting furnace as claimed in claim 1, characterized in that There is gap between upper fire hole (6) and the bottom end of first liner (7).

5. A casting furnace as claimed in claim 1, characterized in that Auxiliary structure (9) includes smoke tray (91), egg part (92), outlet hole (93) and smoke inlet hole (94), and smoke tray (91) is arranged at the top end of second liner (8), egg part (92) is annularly fixed at the middle of the outer side of smoke tray (91), outlet hole (93) is arranged at the inner side of egg part (92), smoke inlet hole (94) is arranged at the outer side of egg part (92), and the overall cross-sectional structure of egg part (92) is oval.

6. A casting furnace as claimed in claim 5, characterized in that Cavity is arranged in egg part (92), and the aperture of smoke inlet hole (94) is less than the aperture of outlet hole (93).

7. A casting furnace as claimed in claim 5, characterized in that The area of upper end of smoke tray (91) is less than the area of lower end of smoke tray (91), and the side of smoke tray (91) is arc structure.

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