Efficient energy-saving sealed smelting chamber

Abstract

The utility model discloses an efficient energy-saving sealed smelting chamber, which relates to the technical field of smelting chambers and comprises a furnace body and a furnace cover, the furnace cover is mounted at the top of the furnace body, an annular sealing groove is formed in the top of the furnace body, an annular cavity is formed in the furnace cover, an annular sliding seat is slidably connected in the annular cavity, and a sealing ring is mounted at the bottom of the annular sliding seat. The lower end of the sealing ring penetrates out of the furnace cover and is located over the annular sealing groove, a spiral square pipe used for conveying gas into the annular cavity is welded to the outer portion of the furnace body, the spiral square pipe is spirally wound on the outer circumferential face of the furnace body, the inner side of the spiral square pipe is open, and a gas injection pipe is connected to the bottom of the spiral square pipe in an inserted mode. The sealing effect between the furnace cover and the furnace body can be improved, gaps are avoided, heat loss is reduced, when oxygen is discharged into the furnace body for combustion supporting, the oxygen can recycle heat on the outer wall of the furnace body and bring the heat into the furnace body, and therefore the heat utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting chambers, in particular to an energy-efficient and sealed smelting chamber. Background Art

[0002] A smelting chamber, namely a smelting furnace, refers to equipment that melts metal ingots and some waste metals, adds necessary alloy components, and melts them into the required alloys through operations such as slag skimming and refining.

[0003] The existing utility model authorization patent with the publication number CN209744983U in Chinese patents discloses an energy-efficient and sealed smelting chamber, including a first cross rail, a second cross rail and a furnace body. The furnace body is divided into a furnace body and a furnace cover. An outlet is opened on the rear surface of the furnace body. A cross plate is arranged on the upper surface of the furnace cover. Connecting blocks are arranged on the left and right sides of the lower surface of the cross plate. A guide rail vehicle is arranged on the lower surface of the connecting block. Rollers are arranged at the lower part of the guide rail vehicle. A first cross brace is arranged on the lower surface of the first cross rail. A first slider is arranged on the left side surface of the first cross brace. A second slider is arranged on the right side surface of the first cross brace. Hydraulic cylinders are arranged on the left and right sides of the lower surface of the first cross brace. A support plate is arranged on the lower surface of the hydraulic cylinder. A first vertical rod is arranged on the left side surface of the support plate. A first vertical rail is arranged on the upper part of the right side surface of the first vertical rod. A second vertical rod is arranged on the right side surface of the support plate. A second vertical rail is arranged on the upper part of the left side surface of the second vertical rod. Limit blocks are arranged inside the first vertical rail and the second vertical rail. A second cross brace is arranged on the top of the right side surface of the second vertical rod. A third vertical rod is arranged on the right side surface of the second cross brace. A second cross rail is arranged on the upper surface of the second cross brace;

[0004] This patent can seal the top of the furnace body, thereby reducing heat loss and achieving an energy-saving effect. However, this patent only uses the self-gravity of the furnace cover for sealing. After long-term use, the mating surface between the furnace cover and the furnace body is prone to wear, resulting in a gap between the furnace cover and the furnace body, which further affects the sealing effect and causes heat loss. Therefore, the utility model provides an energy-efficient and sealed smelting chamber to solve the above-mentioned technical problems. Summary of the Utility Model

[0005] The utility model provides an energy-efficient and sealed smelting chamber to solve the problem that a gap is generated between the furnace cover and the furnace body, affecting the sealing effect and causing heat loss as mentioned in the above background art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An energy-efficient and sealed smelting chamber includes a furnace body and a furnace cover, and the furnace cover is installed on the top of the furnace body;

[0008] An annular sealing groove is formed at the top of the furnace body. An annular cavity is formed inside the furnace cover. An annular sliding seat is slidably connected inside the annular cavity. A sealing ring is installed at the bottom of the annular sliding seat. The lower end of the sealing ring penetrates out of the furnace cover and is located directly above the annular sealing groove. A spiral square pipe for supplying gas into the annular cavity is welded to the outside of the furnace body.

[0009] Furthermore, the spiral square pipe is spirally wound around the outer circumferential surface of the furnace body, and the inner side of the spiral square pipe is open.

[0010] Furthermore, an injection gas pipe is inserted at the bottom of the spiral square pipe, and a gas transmission pipe is inserted at the top of the spiral square pipe.

[0011] Furthermore, the top of the gas transmission pipe is inserted into the annular cavity and is located above the annular sliding seat.

[0012] Furthermore, a flexible graphite gasket is bonded to the inner surface of the annular sealing groove, and a plurality of reset springs are evenly installed between the top of the annular sliding seat and the inner bottom surface of the annular cavity.

[0013] Furthermore, an overflow pipe located above the annular sliding seat is inserted inside the annular cavity. The bottom of the overflow pipe penetrates out of the furnace cover and is located directly above the inside of the furnace body. An overflow valve is installed on the overflow pipe.

[0014] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0015] By arranging a spiral square pipe outside the furnace body, oxygen can be introduced into the spiral square pipe. Then, the oxygen flows upward along the spiral square pipe and is heated. The heated oxygen is then discharged into the annular cavity. As the oxygen in the annular cavity increases, the air pressure will push the annular sliding seat downward. The downward-sliding annular sliding seat then pushes the sealing ring into the annular sealing groove. Thus, the sealing ring and the annular sealing groove cooperate to eliminate the gap between the furnace cover and the furnace body and avoid heat loss. Moreover, when the sealing ring is inserted into the annular sealing groove, high-temperature oxygen continues to be discharged into the annular cavity. When the air pressure reaches the overflow pressure of the overflow valve, the overflow valve opens. Then, the excess oxygen in the annular cavity will overflow into the furnace body through the overflow pipe. In this way, the oxygen can promote combustion, increase the temperature of the melting furnace, accelerate the metal melting speed, and improve the melting efficiency.

[0016] Therefore, through the above method, the present utility model can improve the sealing effect between the furnace cover and the furnace body, avoid the generation of gaps, reduce heat loss, and when discharging oxygen into the furnace body for combustion assistance, the oxygen can also recover the heat on the outer wall of the furnace body and bring it into the furnace body, thereby improving the heat utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal structure of the present utility model.

[0018] Figure 2 For the present utility model Figure 1 is a partial enlarged schematic view of part A.

[0019] Figure 3 For the present utility model Figure 2 is a state diagram when sealed.

[0020] Figures 1-3 Wherein: 1 - furnace body, 101 - annular sealing groove, 2 - furnace cover, 201 - annular cavity, 3 - spiral square pipe, 4 - injection pipe, 5 - gas transmission pipe, 6 - flexible graphite gasket, 7 - annular sliding seat, 8 - sealing ring, 9 - return spring, 10 - overflow pipe, 11 - overflow valve. Specific embodiments

[0021] Please refer to Figures 1 to 3 :

[0022] The present utility model provides an energy - efficient and sealed smelting chamber, including a furnace body 1 and a furnace cover 2. The furnace cover 2 is installed on the top of the furnace body 1. An annular sealing groove 101 is opened at the top of the furnace body 1. An annular cavity 201 is opened inside the furnace cover 2. An annular sliding seat 7 is slidably connected inside the annular cavity 201. A sealing ring 8 is installed at the bottom of the annular sliding seat 7. The lower end of the sealing ring 8 penetrates through the furnace cover 2 and is located directly above the annular sealing groove 101. A spiral square pipe 3 for injecting gas into the annular cavity 201 is welded to the outside of the furnace body 1;

[0023] According to the above, the spiral square pipe 3 is spirally wound around the outer circumferential surface of the furnace body 1, and the inner side of the spiral square pipe 3 is open. An injection pipe 4 is inserted at the bottom of the spiral square pipe 3, and a gas transmission pipe 5 is inserted at the top of the spiral square pipe 3. The top of the gas transmission pipe 5 is inserted into the annular cavity 201 and is located above the annular sliding seat 7. A flexible graphite gasket 6 is bonded to the inner surface of the annular sealing groove 101. A plurality of return springs 9 are evenly installed between the top of the annular sliding seat 7 and the inner bottom surface of the annular cavity 201;

[0024] The injection pipe 4 is connected to a high - pressure air pump. In this way, the high - pressure air pump can inject high - pressure oxygen into the spiral square pipe 3 through the injection pipe 4, and the injected high - pressure oxygen will flow upward along the spiral square pipe 3. During the flow of the high - pressure oxygen, the oxygen will contact the outer wall of the furnace body 1 and be heated. When the oxygen is heated, the air pressure of the oxygen will increase again, and at the same time, the heat on the outside of the furnace body 1 will be recovered. Then, the heated high - pressure oxygen will enter the annular cavity 201 through the gas transmission pipe 5;

[0025] When high-pressure oxygen continues to be discharged into the annular cavity 201, the air pressure will overcome the elastic force of the return spring 9 and push the annular slide seat 7 to slide downward. The downward-sliding annular slide seat 7 synchronously drives the sealing ring 8 to move downward. Then, the downward-moving sealing ring 8 can be inserted into the annular sealing groove 101 and closely fit with the flexible graphite gasket 6;

[0026] Thus, in this way, when the melting furnace is in use, the sealing between the furnace cover 2 and the furnace body 1 can be strengthened, the gap can be eliminated, the sealing effect can be improved, the heat loss can be reduced, the temperature inside the furnace body 1 can be increased, and the melting efficiency can be improved;

[0027] According to the above, an overflow pipe 10 located above the annular slide seat 7 is inserted into the inner side of the annular cavity 201. The bottom of the overflow pipe 10 penetrates through the furnace cover 2 and is located directly above the inside of the furnace body 1. An overflow valve 11 is installed on the overflow pipe 10;

[0028] When the sealing ring 8 is inserted into the annular sealing groove 101, high-pressure oxygen still continues to be injected into the annular cavity 201. Then, the air pressure rises rapidly. When the air pressure reaches the overflow pressure of the overflow valve 11, the overflow valve 11 opens. Then, the excessive oxygen in the annular cavity 201 will overflow into the furnace body 1 through the overflow pipe 10. In this way, the oxygen can promote combustion, increase the temperature of the melting furnace, accelerate the metal melting speed, and further improve the melting efficiency;

[0029] After the metal melting is completed, the injection pipe 4 is depressurized and deflated. Then, the oxygen in the annular cavity 201 will be discharged through the air pipe 5, the spiral square pipe 3, and the injection pipe 4. The return spring 9 then uses its resilience to pull the annular slide seat 7 and the sealing ring 8 to slide upward and reset. Then, the furnace cover 2 can be opened from the top of the furnace body 1;

[0030] To sum up, the utility model can improve the sealing effect between the furnace cover 2 and the furnace body 1, avoid the generation of gaps, reduce heat loss, and when discharging oxygen into the furnace body 1 for combustion assistance, the oxygen can also recover the heat on the outer wall of the furnace body 1 and bring it into the furnace body 1, thereby improving the heat utilization rate.

Claims

1. An efficient and energy-saving sealed smelting chamber, comprising a furnace body (1) and a furnace cover (2), the furnace cover (2) is installed on the top of the furnace body (1), and is characterized in that: A circular sealing groove (101) is formed at the top of the furnace body (1), a circular cavity (201) is formed inside the furnace cover (2), a circular sliding seat (7) is slidably connected inside the circular cavity (201), a sealing ring (8) is installed at the bottom of the circular sliding seat (7), the lower end of the sealing ring (8) penetrates out of the furnace cover (2) and is located directly above the circular sealing groove (101), and a spiral square pipe (3) for supplying gas into the circular cavity (201) is welded outside the furnace body (1).

2. The highly energy-efficient sealed smelting chamber according to claim 1, wherein: The spiral square pipe (3) is spirally wound around the outer circumferential surface of the furnace body (1), and the inner side of the spiral square pipe (3) is open.

3. An efficient energy-saving sealed smelting chamber according to claim 1, characterized in that: An injection gas pipe (4) is inserted at the bottom of the spiral square pipe (3), and a gas transmission pipe (5) is inserted at the top of the spiral square pipe (3).

4. The highly energy-efficient sealed smelting chamber according to claim 3, wherein: The top of the gas transmission pipe (5) is inserted into the circular cavity (201) and is located above the circular sliding seat (7).

5. An efficient energy-saving sealed smelting chamber according to claim 1, characterized in that: A flexible graphite gasket (6) is bonded to the inner surface of the circular sealing groove (101), and a plurality of return springs (9) are uniformly installed between the top of the circular sliding seat (7) and the inner bottom surface of the circular cavity (201).

6. An efficient energy-saving sealed smelting chamber according to claim 1, characterized in that: An overflow pipe (10) located above the circular sliding seat (7) is inserted inside the circular cavity (201), the bottom of the overflow pipe (10) penetrates out of the furnace cover (2) and is located directly above the inside of the furnace body (1), and an overflow valve (11) is installed on the overflow pipe (10).

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