Roasting furnace using high-temperature flue gas as boiling air

Abstract

The utility model relates to the technical field of roasting furnaces, in particular to a roasting furnace using high-temperature flue gas as boiling air, which comprises a combustion furnace body, an inner furnace body is arranged in the combustion furnace body, a furnace cover is arranged at the top end of the inner furnace body, and flue boxes are fixedly mounted on two sides of the combustion furnace body. Smoke passing openings are formed in the upper portions of the two sides of the combustion furnace body. According to the roasting furnace using the high-temperature flue gas as the boiling air, through cooperative use of the combustion furnace body, the inner furnace body, the furnace cover, the flue box, the water storage tank, a water inlet pipe, visual transparent glass, a smoke exhaust pipe, a water drainage pipe, a connecting pipe, a smoke passing opening, a rectangular guide box, a combustion chamber and a heat exchange pipe, after entering the heat exchange pipe, the flue gas exchanges heat with water in the water storage tank; and finally, the flue gas is discharged into the flue gas treatment system in the next process through the flue gas discharge pipe and then is discharged out, and the equipment realizes recycling of heat through the heat exchange pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of roasting furnaces, in particular to a roasting furnace which utilizes high-temperature smoke as boiling wind. Background Art

[0002] With the continuous development of industrialization, the demand for energy is increasing, while traditional combustion methods often cause energy waste and environmental pollution. The emergence of high-temperature flue gas boiling air roasting furnace is born to solve this problem. "Boiling air" roasting furnace usually refers to a device that uses the heat generated by high-temperature flue gas to heat materials. The design of this equipment usually involves putting materials (such as ore or waste) into a container called a "roasting furnace" and using high-temperature flue gas to pass through the materials to heat them. The heat generated by this process can cause chemical or physical changes in the materials, thereby achieving roasting, sintering or other processing purposes.

[0003] During operation, the existing roasting furnace guides the high-temperature flue gas into the roasting furnace and passes through the material to make it boil, thereby heating and processing the material. However, during the roasting process, the flue gas carries a large amount of heat energy, which is not effectively utilized but directly discharged after being processed by the exhaust system, resulting in energy waste.

[0004] Therefore, it is necessary to provide a roasting furnace that utilizes high-temperature flue gas as boiling air to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to provide a roasting furnace which utilizes high temperature flue gas as boiling wind, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A roasting furnace using high-temperature flue gas as boiling air, comprising:

[0008] A combustion furnace body, wherein an inner furnace body is arranged inside the combustion furnace body, a furnace cover is arranged on the top of the inner furnace body, flue boxes are fixedly installed on both sides of the combustion furnace body, smoke outlets are arranged above both sides of the combustion furnace body, rectangular guide boxes are fixedly installed below both sides of the combustion furnace body, and one side of the rectangular guide box passes through the lower side of the inner furnace body and is connected with the interior of the inner furnace body, a combustion chamber is arranged at the bottom of the combustion furnace body, and a water storage tank is fixedly installed on the back of the combustion furnace body;

[0009] A connecting pipe is fixedly inserted and installed on the upper part of the back of the inner furnace body, and the rear end of the connecting pipe passes through the inner wall of the combustion furnace body and extends to the inside of the water storage tank. A smoke exhaust pipe is fixedly inserted and installed on the lower part of one side of the water storage tank, and a heat exchange pipe is fixedly connected between one end of the smoke exhaust pipe and one end of the connecting pipe;

[0010] A water inlet pipe is fixedly installed and inserted on the upper part of one side of the back side of the water storage tank, and a drain pipe is fixedly installed and inserted on the lower part of the other side of the back side of the water storage tank.

[0011] Preferably, a plurality of heat-conducting rods are fixedly mounted on the outer wall of the heat exchange tube, and the shape of the heat exchange tube is a serpentine tube.

[0012] Preferably, a visual transparent glass is fixedly installed on the back of the water tank.

[0013] Preferably, a grille is fixedly mounted on the port of the rectangular guide box located on one side inside the inner furnace body.

[0014] Preferably, the heat exchange tube is made of copper tube.

[0015] Preferably, temperature sensors are installed at the top and bottom of the water tank.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model uses a combustion furnace body, an inner furnace body, a furnace cover, a flue box, a water tank, a water inlet pipe, a visual transparent glass, a smoke exhaust pipe, a drain pipe, a connecting pipe, a smoke outlet, a rectangular guide box, a combustion chamber and a heat exchange tube. After the smoke enters the interior of the heat exchange tube, it will exchange heat with the water in the water tank. Finally, the smoke is discharged into the next process smoke treatment system through the smoke exhaust pipe and then discharged. The equipment realizes the recovery and utilization of heat through the heat exchange tube, prevents energy waste, makes the equipment more economical and environmentally friendly, and meets the requirements of energy conservation and emission reduction.

[0018] 2. The utility model provides a heat-conducting rod. When the high-temperature flue gas passes through the heat exchange tube, the heat in the flue gas is transferred to the heat-conducting rod through the heat exchange tube, further increasing the contact area between the heat exchange tube and water, making the heat exchange efficiency higher and the overall heat exchange performance more outstanding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of the utility model.

[0020] Figure 2 It is a rear view structural schematic diagram of the utility model.

[0021] Figure 3 It is a front view cross-sectional structural schematic diagram of the utility model.

[0022] Figure 4 It is a rear cross-sectional structural schematic diagram of the water storage tank in the utility model.

[0023] Figure 5 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1. Combustion furnace body; 2. Inner furnace body; 3. Furnace cover; 4. Flue box; 5. Water storage tank; 6. Water inlet pipe; 7. Visual transparent glass; 8. Smoke exhaust pipe; 9. Drain pipe; 10. Connecting pipe; 11. Smoke outlet; 12. Rectangular guide box; 13. Combustion chamber; 14. Heat exchange tube; 15. Heat conducting rod; 16. Temperature sensor; 17. Grille. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5, an embodiment provided by the utility model:

[0030] A roasting furnace using high-temperature flue gas as boiling air, comprising:

[0031] A combustion furnace body 1, an inner furnace body 2 is arranged inside the combustion furnace body 1, a furnace cover 3 is arranged at the top of the inner furnace body 2, flue boxes 4 are fixedly installed on both sides of the combustion furnace body 1, smoke ports 11 are arranged above both sides of the combustion furnace body 1, rectangular guide boxes 12 are fixedly installed below both sides of the combustion furnace body 1, and one side of the rectangular guide box 12 passes through the lower side of the inner furnace body 2 and is connected to the inside of the inner furnace body 2, a combustion chamber 13 is arranged at the bottom of the combustion furnace body 1, and a water storage tank 5 is fixedly installed on the back of the combustion furnace body 1;

[0032] A connecting pipe 10 is fixedly inserted and installed on the upper back of the inner furnace body 2, and the rear end of the connecting pipe 10 passes through the inner wall of the combustion furnace body 1 and extends to the inside of the water storage tank 5. A smoke exhaust pipe 8 is fixedly inserted and installed below one side of the water storage tank 5, and a heat exchange pipe 14 is fixedly connected between one end of the smoke exhaust pipe 8 and one end of the connecting pipe 10;

[0033] A water inlet pipe 6 is fixedly installed and inserted on the upper side of one side of the back side of the water storage tank 5, and a drain pipe 9 is fixedly installed and inserted on the lower side of the other side of the back side of the water storage tank 5.

[0034] A plurality of heat conducting rods 15 are fixedly mounted on the outer wall of the heat exchange tube 14. The heat exchange tube 14 is in a serpentine shape. The serpentine shape of the heat exchange tube 14 can increase its surface area and improve heat exchange efficiency.

[0035] In one embodiment, a visual transparent glass 7 is fixedly installed on the back of the water tank 5, so that the operator can clearly observe the water level inside the water tank 5, and it is convenient to monitor and adjust the water level in time. The visual transparent glass 7 has good high temperature resistance, can maintain transparency in a high temperature environment, and will not be deformed or broken due to high temperature, thereby ensuring the safety of the operator.

[0036] In one preferred embodiment, a grille 17 is fixedly installed at a port of the rectangular guide box 12 located on one side inside the inner furnace body 2 to prevent materials from entering the interior of the rectangular guide box 12 .

[0037] In one embodiment, the heat exchange tube 14 is made of copper tube, which has good thermal conductivity, can effectively transfer heat and improve heat exchange efficiency.

[0038] In one preferred embodiment, temperature sensors 16 are installed above and below the water tank 5. Through these temperature sensors, the operator can know the temperature of the water inside the water tank 5 at any time, so as to replace the water in time. The arrangement of the upper and lower temperature sensors can fully cover the temperature change of the water in the water tank and ensure the heat exchange efficiency.

[0039] The working principle of the utility model is as follows: the specific structure of the combustion furnace body 1 can refer to the prior art, which can be easily realized by those skilled in the art. When in use, the furnace cover 3 is opened, the material is placed in the interior of the inner furnace body 2, and the fuel is placed in the combustion chamber 13 and ignited. The combustion chamber 13 will heat the inner furnace body 2, thereby roasting the material in the inner furnace body 2. At the same time, the high-temperature flue gas generated after the fuel is ignited enters the interior of the flue box 4 through the smoke port 11, and under the guidance of the flue box 4, it passes through the rectangular guide box 12 and enters the interior of the inner furnace body 2 to directly contact the material. The material is heated in the combustion furnace body 1, and the moisture therein begins to evaporate. At the same time, the surface of the material is also heated by the high-temperature flue gas. When the surface temperature of the material rises to a certain level, the moisture evaporates rapidly and forms bubbles, and the material is heated. At this point, a boiling state begins to occur in the furnace. The boiling movement of the material allows the flue gas to pass through the material more evenly and transfer heat effectively. The material is continuously heated in a boiling state to reach the required temperature. The high temperature causes chemical or physical changes to occur inside the material to achieve roasting, sintering or other processing purposes. The flue gas inside the inner furnace body 2 will eventually be discharged into the heat exchange tube 14 through the connecting pipe 10, and the interior of the water tank 5 will be injected with an appropriate amount of water in advance through the water inlet pipe 6. After entering the heat exchange tube 14, the flue gas will exchange heat with the water inside the water tank 5. Finally, the flue gas is discharged into the next process flue gas treatment system through the exhaust pipe 8 and then discharged. The equipment realizes heat recovery through the heat exchange tube 14, prevents energy waste, makes the equipment more economical and environmentally friendly, and meets the requirements of energy conservation and emission reduction.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A roasting furnace using high temperature flue gas as boiling air, characterized in that: It includes: A combustion furnace body (1), wherein an inner furnace body (2) is arranged inside the combustion furnace body (1), a furnace cover (3) is arranged at the top of the inner furnace body (2), flue boxes (4) are fixedly installed on both sides of the combustion furnace body (1), smoke outlets (11) are arranged above both sides of the combustion furnace body (1), rectangular guide boxes (12) are fixedly installed below both sides of the combustion furnace body (1), and one side of the rectangular guide box (12) passes through the lower side of the inner furnace body (2) and is connected to the inside of the inner furnace body (2), a combustion chamber (13) is arranged at the bottom of the combustion furnace body (1), and a water storage tank (5) is fixedly installed on the back of the combustion furnace body (1); A connecting pipe (10) is fixedly inserted and installed on the upper back side of the inner furnace body (2), and the rear end of the connecting pipe (10) passes through the inner wall of the combustion furnace body (1) and extends to the inside of the water storage tank (5); a smoke exhaust pipe (8) is fixedly inserted and installed on the lower side of one side of the water storage tank (5), and a heat exchange pipe (14) is fixedly connected between one end of the smoke exhaust pipe (8) and one end of the connecting pipe (10); A water inlet pipe (6) is fixedly installed and inserted on the upper side of one side of the back of the water storage tank (5), and a drainage pipe (9) is fixedly installed and inserted on the lower side of the other side of the back of the water storage tank (5).

2. A roasting furnace using high temperature flue gas as boiling air according to claim 1, characterized in that: A plurality of heat-conducting rods (15) are fixedly mounted on the outer wall of the heat exchange tube (14), and the shape of the heat exchange tube (14) is a serpentine tube.

3. The roasting furnace using high temperature flue gas as boiling air according to claim 1, characterized in that: A visual transparent glass (7) is fixedly mounted on the back of the water storage tank (5).

4. The roasting furnace using high temperature flue gas as boiling air according to claim 1, characterized in that: The rectangular guide box (12) is fixedly mounted with a grille (17) at a port located on one side inside the inner furnace body (2).

5. The roasting furnace using high temperature flue gas as boiling air according to claim 1, characterized in that: The heat exchange tube (14) is made of copper tube.

6. The roasting furnace using high temperature flue gas as boiling air according to claim 1, characterized in that: Temperature sensors (16) are installed at the top and bottom of the water storage tank (5).

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