Preheating and smoke discharging structure of calcining furnace

Abstract

The utility model discloses a calcining furnace preheating smoke discharge structure, including furnace body, furnace frame, furnace lid and gas washing box, the gas washing box passes through furnace lid and furnace body intercommunication, the inside of furnace lid is provided with transmission structure, transmission structure includes planet gear and connecting shaft, the inside of furnace lid is provided with air hole, planet gear is matched with air hole, and the connecting shaft is connected with the planet gear. Relates to the technical field of calcining furnace smoke discharge. The transmission structure is arranged in the furnace cover and comprises the planet wheel and the connecting shaft, the air hole is formed in the furnace cover, and the planet wheel is matched with the air hole, so that the planet wheel can be driven to move through rotation of the connecting shaft, the small gear in the planet wheel axially and annularly rotates around the connecting shaft, and the air hole can be shielded or opened; when flue gas is generated in the calcining furnace, a channel of the air hole can be opened, the flue gas enters the air cylinder, and then the flue gas is input into the gas washing box through the air pipe for gas washing, so that the pollution problem caused by direct emission of the flue gas can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust from a calcining furnace, in particular to a preheating smoke exhaust structure for a calcining furnace. Background Art

[0002] A calcining furnace is a device used for high-temperature material processing, and is commonly used in ore processing, metallurgical industry, chemical industry, etc. A calcining furnace is usually able to calcine, roast, dry, etc. the raw materials at high temperatures to achieve physical or chemical changes in the material and meet specific production requirements.

[0003] For example, the patent with publication number CN219083795U discloses a calcining furnace preheating smoke exhaust structure, which specifically discloses that "the main technical scheme of the utility model is: a calcining furnace preheating smoke exhaust structure, comprising: a calcining furnace body, the upper part of the calcining furnace body having a top layer of fire channel; a boiler body, the boiler body having a flue gas inlet; a connecting component, the connecting component comprising a preheating pipe, a connecting pipe and a regulating valve, the preheating pipe extends along the bottom wall and side wall of the calcining furnace body to the top layer of fire channel, one end of the connecting pipe passes through the calcining furnace body and is connected to the preheating pipe, and the other end is connected to the flue gas inlet, and the regulating valve is arranged on the connecting pipe" and realizes the technical effect that "the utility model is mainly used for conveying preheated air".

[0004] However, the prior art has problems in that the smoke in the calcining furnace is inconvenient to discharge, or the pollution exceeds the standard after the smoke is discharged, and there is room for improvement. Utility Model Content

[0005] The utility model aims to provide a calcining furnace preheating smoke exhaust structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a calcining furnace preheating smoke exhaust structure, comprising a furnace body, a furnace frame, a furnace cover and an air washing box, the air washing box is connected to the furnace body through the furnace cover, a transmission structure is arranged inside the furnace cover, the transmission structure comprises a planetary gear and a connecting shaft, air holes are opened inside the furnace cover, the planetary gear is adapted to the air holes, and the air washing box is connected to the furnace cover through an air pipe.

[0007] As a further solution of the utility model: a calcining furnace preheating smoke exhaust structure, the furnace cover includes a main cover, a movable cover and an air cylinder, the furnace body is rotatably connected to the air cylinder, the air cylinder is fixedly connected to the main cover, the movable cover is movably connected to the main cover, one end of the connecting shaft is fixedly connected to the large gear inside the planetary gear, and the end of the connecting shaft away from the planetary gear passes through the movable cover and extends to the outside of the movable cover.

[0008] As a further solution of the utility model: a calcining furnace preheating smoke exhaust structure, one side of the gas washing box is fixedly connected with a liquid injection port, and one side of the liquid injection port is movably connected with a cover port.

[0009] As a further solution of the utility model: a calcining furnace preheating smoke exhaust structure, an exhaust port is arranged on one side of the air washing box.

[0010] As a further solution of the utility model: a calcining furnace preheating smoke exhaust structure, the air pipe extends to the inner bottom wall of the air washing box.

[0011] As a further solution of the utility model: a calcining furnace preheating smoke exhaust structure, one side of the air pipe can be connected to a pump.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Since a transmission structure is provided inside the furnace cover, the transmission structure includes a planetary gear and a connecting shaft, and air holes are opened inside the furnace cover and the planetary gear is adapted to the air holes, the planetary wheel can be driven to move by rotating the connecting shaft, and the small gear inside the planetary gear rotates in a circular shape around the axial direction of the connecting shaft, so that the air holes can be covered or opened. When flue gas is generated in the calcining furnace, the channel of the air hole can be opened to allow the flue gas to enter the air cylinder, and then the flue gas is input into the air washing box through the air pipe for air washing, thereby avoiding pollution problems caused by direct emission of flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the furnace cover of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the gas cylinder and the transmission structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the furnace cover of the utility model;

[0018] Figure 5 This is an assembly diagram of the air pipe and the air washing box of the utility model;

[0019] In the figure: 1. furnace body; 2. furnace frame; 3. furnace cover; 31. main cover; 32. movable cover; 33. sealing ring; 34. air cylinder; 35. air hole; 4. air washing box; 5. air pipe; 6. liquid filling port; 7. exhaust port; 8. transmission structure; 81. planetary gear; 82. connecting shaft. DETAILED DESCRIPTION

[0020] 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.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0022] In an embodiment of the utility model, a calcining furnace preheating smoke exhaust structure includes a furnace body 1, a furnace frame 2, a furnace cover 3 and an air washing box 4, the air washing box 4 is connected to the furnace body 1 through the furnace cover 3, a transmission structure 8 is arranged inside the furnace cover 3, the transmission structure 8 includes a planetary gear 81 and a connecting shaft 82, an air hole 35 is opened inside the furnace cover 3, the planetary gear 81 is adapted to the air hole 35, and the air washing box 4 is connected to the furnace cover 3 through an air pipe 5.

[0023] See also Figure 1 , Figure 2 and Figure 3Since the furnace cover 3 is provided with a transmission structure 8, the transmission structure 8 includes a planetary gear 81 and a connecting shaft 82, and the furnace cover 3 is provided with an air hole 35 and the planetary gear 81 is adapted to the air hole 35, the planetary gear 81 can be driven to move by rotating the connecting shaft 82, and the pinion gear inside the planetary gear 81 rotates around the axial direction of the connecting shaft 82, so that the air hole 35 can be covered or opened. When smoke is generated in the calcining furnace, the passage of the air hole 35 can be opened to allow the smoke to enter the air cylinder 34, and then the smoke is input into the scrubbing box 4 through the air pipe 5 for scrubbing, which can avoid the pollution problem caused by direct emission of smoke.

[0024] Other embodiments of the utility model: a calcining furnace preheating smoke exhaust structure, the furnace cover 3 includes a main cover 31, a movable cover 32 and an air cylinder 34, the furnace body 1 is rotatably connected to the air cylinder 34, the air cylinder 34 is fixedly connected to the main cover 31, the movable cover 32 is movably connected to the main cover 31, one end of the connecting shaft 82 is fixedly connected to the large gear inside the planetary gear 81, and the end of the connecting shaft 82 away from the planetary gear 81 passes through the movable cover 32 and extends to the outside of the movable cover 32.

[0025] Other embodiments of the utility model: a calcining furnace preheating smoke exhaust structure, one side of the gas washing box 4 is fixedly connected with a liquid injection port 6, and one side of the liquid injection port 6 is movably connected with a cover port.

[0026] Other embodiments of the utility model: a calcining furnace preheating smoke exhaust structure, wherein an exhaust port 7 is provided on one side of the air washing box 4.

[0027] Other embodiments of the utility model: a calcining furnace preheating smoke exhaust structure, the air pipe 5 extends to the inner bottom wall of the air washing box 4.

[0028] Other embodiments of the utility model: a calcining furnace preheating smoke exhaust structure, one side of the air pipe 5 can be connected to a pump.

[0029] The working principle of the utility model is as follows: since a transmission structure 8 is provided inside the furnace cover 3, the transmission structure 8 includes a planetary gear 81 and a connecting shaft 82, an air hole 35 is opened inside the furnace cover 3 and the planetary gear 81 is adapted to the air hole 35, the planetary gear 81 can be driven to move by rotating the connecting shaft 82, and the pinion inside the planetary gear 81 rotates axially around the connecting shaft 82, so that the air hole 35 can be covered or opened. When smoke is generated in the calcining furnace, the passage of the air hole 35 can be opened to allow the smoke to enter the air cylinder 34, and then the smoke is input into the scrubbing box 4 through the air pipe 5 for scrubbing, thereby avoiding the pollution problem caused by direct emission of smoke.

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A calcining furnace preheating smoke exhaust structure, characterized in that: The invention comprises a furnace body (1), a furnace frame (2), a furnace cover (3) and an air washing box (4); the air washing box (4) is connected to the furnace body (1) through the furnace cover (3); a transmission structure (8) is arranged inside the furnace cover (3); the transmission structure (8) comprises a planetary gear (81) and a connecting shaft (82); an air hole (35) is opened inside the furnace cover (3); the planetary gear (81) is matched with the air hole (35); and the air washing box (4) is connected to the furnace cover (3) through an air pipe (5).

2. A calcining furnace preheating smoke exhaust structure according to claim 1, characterized in that: The furnace cover (3) comprises a main cover (31), a movable cover (32) and an air cylinder (34); the furnace body (1) is rotatably connected to the air cylinder (34); the air cylinder (34) is fixedly connected to the main cover (31); the movable cover (32) is movably connected to the main cover (31); one end of the connecting shaft (82) is fixedly connected to a large gear inside the planetary gear (81); and one end of the connecting shaft (82) away from the planetary gear (81) passes through the movable cover (32) and extends to the outside of the movable cover (32).

3. A calcining furnace preheating smoke exhaust structure according to claim 2, characterized in that: A liquid injection port (6) is fixedly connected to one side of the gas washing box (4), and a cover port is movably connected to one side of the liquid injection port (6).

4. A calcining furnace preheating smoke exhaust structure according to claim 3, characterized in that: An exhaust port (7) is provided on one side of the air washing box (4).

5. A calcining furnace preheating smoke exhaust structure according to claim 4, characterized in that: The air pipe (5) extends to the inner bottom wall of the air washing box (4).

6. A calcining furnace preheating smoke exhaust structure according to claim 5, characterized in that: One side of the air pipe (5) may be connected to a pump.

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