Air intake and exhaust structure of oxide calcining furnace

Abstract

The utility model discloses an oxide calcining furnace air intake and exhaust structure which comprises a resistance furnace body, a protection bin is arranged at the top of the resistance furnace body, a mounting groove is formed in the middle of the top in the resistance furnace body, a motor is arranged on one side of the top of the inner side of the mounting groove, and a gear A is arranged at the output end of the motor; a connecting plate is arranged on one side of the bottom in the protection bin, and connecting pipes extending into the resistance furnace main body are arranged on the two sides of the bottom of the connecting plate; through the mutual cooperation of the connecting plate, the groove, the flange plate, the sealing ring, the guide hole and the spring, the flange plate can be pushed to be tightly attached to the sealing ring through the elastic force of the spring after the exhaust pipe and the air inlet pipe are installed through the device, and therefore the sealing performance of the connecting position of the exhaust pipe and the air inlet pipe is guaranteed; tail gas leakage caused by gas inlet and reaction can be prevented, the oxide reaction effect is guaranteed, and meanwhile pollution caused by tail gas leakage to the surrounding environment can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of calcining furnaces, in particular to an air intake and exhaust structure of an oxide calcining furnace. Background Art

[0002] Resistance furnace is an industrial furnace that uses electric current to heat the electric heating element or heating medium in the furnace, thereby heating the workpiece or material. It is a heating furnace that uses electric current to pass through the resistance material to generate heat energy. Resistance furnace is used in the machinery industry for heating before metal forging, metal heat treatment heating, brazing, powder metallurgy sintering, glass ceramic roasting and annealing, low melting point metal melting, sand mold and paint film drying, etc. When calcining high-purity nano oxides, box-type resistance furnaces are also used to forge nano oxides;

[0003] The patent with the existing authorization announcement number of "An air intake and exhaust device for a box-type resistance furnace" discloses an air intake and exhaust device for a box-type resistance furnace, including a furnace body, wherein the bottom of the furnace body is fixedly connected with a base, the upper part of the furnace body is fixedly covered with a top cover, the middle position of the top of the top cover is fixedly connected with an exhaust pipe, and the lower left corner and the upper right corner of the top cover are vertically fixedly connected with an air intake pipe. The utility model is characterized by vertically fixing and connecting a butt pipe at the middle position of the upper part of the first air intake box and the second air intake box; the inner sides of the first air intake box and the second air intake box are provided with a plurality of equidistantly distributed air holes, and the air holes can ensure that the protective gas introduced into the first air intake box and the second air intake box can be uniformly sprayed into the resistor to ensure the protective effect and efficiency; and the butt pipe and the air intake pipe on the top cover can achieve the covering effect when the cover is closed, which is convenient and quick;

[0004] However, there are the following deficiencies in this device:

[0005] 1. When the resistance furnace is used to forge the oxide, the reaction gas needs to be introduced to react with the oxide, so the sealing of the inlet and outlet pipes needs to be ensured. The sealing of the inlet and outlet pipes of the above device is poor, which makes it easy for air to leak into the device, which not only pollutes the surrounding environment, but also affects the reaction effect on the oxide and reduces the product quality.

[0006] 2. When the above device is forging oxides, the air inlet position is fixed, which causes uneven contact between various parts of the oxide and the reaction gas, which easily leads to uneven reaction and reduces the forging effect of the oxide. Utility Model Content

[0007] The utility model aims to provide an intake and exhaust structure of an oxide calcining furnace to solve the existing problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intake and exhaust structure of an oxide calcining furnace, comprising a resistance furnace body, a protection chamber is provided on the top of the resistance furnace body, a mounting groove is provided in the middle of the top of the resistance furnace body, a motor is provided on one side of the top of the inner side of the mounting groove, a gear A is provided at the output end of the motor, a connecting plate is provided on one side of the bottom of the protection chamber, connecting pipes extending to the inside of the resistance furnace body are provided on both sides of the bottom of the connecting plate, a group of the connecting pipes are provided with a rotating joint at the bottom, a nozzle is provided at the bottom of the rotating joint, and a gear C meshing with the gear A is provided on the top of the outer side of the nozzle;

[0009] A filter box is provided at the top of the inner side of the protection warehouse, a delivery pipe is provided at the top of the filter box, a filter screen is provided inside the filter box, an air inlet pipe is provided at the bottom of the filter box, an exhaust pipe is provided at one side of the top of the protection warehouse, flanges are provided at the bottoms of the exhaust pipe and the air inlet pipe, grooves are provided at both sides of the top of the connecting plate, guide holes are provided at both sides of the bottom of the inner side of the groove, push rods are sleeved on the inner sides of the two groups of guide holes, sealing rings are provided on the tops of the two groups of push rods, and the sealing rings are sleeved on the outer side of the connecting pipe, springs are provided at the bottoms of the two groups of push rods, and a vibration assembly is provided at the top of one side of the inner side of the mounting groove.

[0010] Preferably, the vibration assembly includes a rotating rod, a gear B, a rotating wheel, an impact rod and a hinged rod. A rotating rod is sleeved on the top of one side of the inner side of the mounting groove, a gear B meshing with gear C is provided at the bottom of the rotating rod, a rotating wheel is provided on the top of the rotating rod, an impact rod is sleeved on one side of the filter box, and a hinged rod hinged to the impact rod is sleeved on one side of the top of the rotating wheel, so that the filter screen can vibrate to shake off the filtered impurities and prevent the filter screen from being blocked.

[0011] Preferably, a collecting box is provided on one side of the interior of the filter box, and a compartment door is provided on one side of the filter box, which can collect filtered impurities to facilitate subsequent centralized cleaning.

[0012] Preferably, an annular groove is provided at the edge of the top of the resistance furnace body, and sliding blocks matching the annular groove are provided on both sides of the top of the nozzle to guide the nozzle.

[0013] Preferably, one side of the impact rod extends to the inner side of the filter box and is provided with an impact head, and the middle part of the bottom of the filter screen is provided with an arc block matched with the impact head, which can buffer the impact damage to the filter screen.

[0014] Preferably, movable grooves are provided on both sides of the filter box, and movable blocks matching the movable grooves are provided on both sides of the filter screen, so that the filter screen has a certain movable space, so that it can shake up and down when impacted to make the filtered impurities roll off.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the intake and exhaust structure of the oxide calcining furnace;

[0016] 1. Through the cooperation between the connecting plate, groove, flange, sealing ring, guide hole and spring, after the device is installed on the exhaust pipe and the intake pipe, the elastic force of the spring can push the flange and the sealing ring to fit tightly, thereby ensuring the sealing of the connection between the exhaust pipe and the intake pipe, preventing exhaust gas leakage caused by intake and reaction, ensuring the effect of the oxide reaction, and preventing exhaust gas leakage from polluting the surrounding environment;

[0017] 2. Through the mutual cooperation among the nozzle, gear A, motor, rotating rod, gear B, rotary joint, gear C, wheel, impact rod and hinged rod, the device can control the rotation of the nozzle when forging the oxide, and spray the reaction gas into the main body of the resistance furnace during rotation, so as to contact the oxide evenly and improve the reaction effect of the oxide. At the same time, when the nozzle rotates, the impact rod can be synchronously driven to intermittently impact the filter screen to shake off the filtered impurities and prevent the filter screen from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a front cross-sectional view of the utility model;

[0020] Figure 3 For the utility model Figure 2 A schematic diagram of the structure at A;

[0021] Figure 4 For the utility model Figure 2 Enlarged schematic diagram of the structure at B.

[0022] In the figure: 1. Resistance furnace body; 2. Nozzle; 3. Gear A; 4. Mounting groove; 5. Exhaust pipe; 6. Connecting plate; 7. Motor; 8. Inlet pipe; 9. Filter box; 10. Delivery pipe; 11. Rotating rod; 12. Connecting pipe; 13. Gear B; 14. Rotary joint; 15. Gear C; 16. Filter screen; 17. Rotor; 18. Impact rod; 19. Articulated rod; 20. Push rod; 21. Groove; 22. Flange; 23. Sealing ring; 24. Guide hole; 25. Spring; 26. Protective compartment. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 The utility model provides an embodiment: an oxide calcining furnace air intake and exhaust structure, including a resistance furnace body 1, a protection bin 26 is provided on the top of the resistance furnace body 1, a mounting groove 4 is provided in the middle of the top of the resistance furnace body 1, a motor 7 is provided on one side of the top of the inner side of the mounting groove 4, and a gear A3 is provided at the output end of the motor 7, a connecting plate 6 is provided on one side of the bottom of the protection bin 26, and connecting pipes 12 extending to the inside of the resistance furnace body 1 are provided on both sides of the bottom of the connecting plate 6, and a group of connecting pipes 12 are provided with a rotating joint 14 at the bottom, and a nozzle 2 is provided at the bottom of the rotating joint 14, and an annular groove is provided at the edge of the top of the resistance furnace body 1, and sliders matching with the annular groove are provided on both sides of the top of the nozzle 2. When the nozzle 2 rotates, the slider slides along the annular groove to improve the rotation stability of the nozzle 2, and a gear C15 meshing with the gear A3 is provided on the top of the outer side of the nozzle 2;

[0025] A filter box 9 is provided at the top of the inner side of the protection warehouse 26, a conveying pipe 10 is provided at the top of the filter box 9, a filter screen 16 is provided inside the filter box 9, movable grooves are provided on both sides of the inside of the filter box 9, and movable blocks matching the movable grooves are provided on both sides of the filter screen 16, so that the filter screen 16 has a certain movable space, so that it can shake up and down when hit, so that the filtered impurities roll off, an air inlet pipe 8 is provided at the bottom of the filter box 9, an exhaust pipe 5 is provided on one side of the top of the protection warehouse 26, and flanges 22 are provided at the bottom of the exhaust pipe 5 and the intake pipe 8, grooves 21 are provided on both sides of the top of the connecting plate 6, guide holes 24 are provided on both sides of the bottom of the inner side of the groove 21, push rods 20 are sleeved on the inner sides of the two groups of guide holes 24, sealing rings 23 are provided on the tops of the two groups of push rods 20, and the sealing rings 23 are sleeved on the outer side of the connecting pipe 12, springs 25 are provided at the bottoms of the two groups of push rods 20, and a vibration component is provided at the top of one side of the inner side of the mounting groove 4.

[0026] Furthermore, the vibration assembly includes a rotating rod 11, a gear B13, a rotating wheel 17, an impact rod 18 and a hinged rod 19. The top of one side of the inner side of the installation groove 4 is sleeved with the rotating rod 11, the bottom of the rotating rod 11 is provided with a gear B13 meshing with the gear C15, the top of the rotating rod 11 is provided with a rotating wheel 17, one side of the filter box 9 is sleeved with an impact rod 18, one side of the impact rod 18 extends to the inner side of the filter box 9 and is provided with an impact head, the middle part of the bottom of the filter screen 16 is provided with an arc block matching with the impact head, the impact rod 18 can impact the arc block through the impact head to prevent the filter screen 16 from being directly damaged by the impact, and one side of the top of the rotating wheel 17 is sleeved with a hinged rod 19 hinged with the impact rod 18, which can drive the impact rod 18 to intermittently impact the filter screen 16 when controlling the rotation of the nozzle 2 to shake off the filtered impurities.

[0027] Furthermore, a collecting box is provided on one side of the interior of the filter box 9, and a compartment door is provided on one side of the filter box 9, so that impurities shaken off the filter screen 16 can be collected in the collecting box, making it convenient to take out the collecting box for cleaning later.

[0028] Working principle: When the device is forging high-purity nano oxides, it is necessary to add reaction gas to react with the oxides. At this time, the air can be transported into the filter box 9 through the delivery pipe 10, and then the impurities in the air can be filtered through the filter screen 16. The filtered gas can enter the nozzle 2 through the guide of the intake pipe 8, and then sprayed into the resistance furnace body 1 through the nozzle 2 to react with the oxides. At this time, the motor 7 is started to run, and the gear A3 can be driven to rotate by the motor 7, and then the gear A3 drives the gear C15, so that the nozzle 2 can rotate to spray the gas into the resistance furnace body 1, thereby ensuring that the gas is evenly distributed and can react with the oxides better;

[0029] When the nozzle 2 rotates, the gear C15 can drive the gear B13 to rotate, and then the gear B13 drives the rotating rod 11, so that the rotating rod 11 can drive the impact rod 18 to move back and forth through the connection of the hinge rod 19, and intermittently impact the filter 16, so that the filter 16 vibrates in the movable groove. The impurities filtered by the filter 16 can be diverted to one side by utilizing its inclined structure and vibration force, and collected in the collection box, which can prevent the filter 16 from being blocked and facilitate the subsequent cleaning of impurities.

[0030] When the device is installing the exhaust pipe 5 and the intake pipe 8, the flange 22 can be fixed on the top of the connecting plate 6. At this time, the flange 22 can push the sealing ring 23 to overcome the elastic force of the spring 25 and be retracted into the groove 21. After the flange 22 is fixed, the elastic force of the spring 25 can push the sealing ring 23 to fit tightly with the flange 22, thereby improving the sealing of the connection between the exhaust pipe 5 and the intake pipe 8 and preventing gas leakage.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An oxide calcining furnace air intake and exhaust structure, comprising a resistance furnace body (1), characterized in that: A protective chamber (26) is provided on the top of the resistance furnace body (1), a mounting groove (4) is provided in the middle of the top of the resistance furnace body (1), a motor (7) is provided on one side of the top of the inner side of the mounting groove (4), a gear A (3) is provided at the output end of the motor (7), a connecting plate (6) is provided on one side of the bottom of the protection chamber (26), connecting pipes (12) extending to the inside of the resistance furnace body (1) are provided on both sides of the bottom of the connecting plate (6), a set of the connecting pipes (12) are provided at the bottom, a nozzle (2) is provided at the bottom of the rotating joint (14), and a gear C (15) meshing with the gear A (3) is provided at the top of the outer side of the nozzle (2); A filter box (9) is provided at the top of the inner side of the protection chamber (26), a delivery pipe (10) is provided at the top of the filter box (9), a filter screen (16) is provided inside the filter box (9), an air inlet pipe (8) is provided at the bottom of the filter box (9), an exhaust pipe (5) is provided at one side of the top of the protection chamber (26), flanges (22) are provided at the bottoms of the exhaust pipe (5) and the air inlet pipe (8), grooves (21) are provided at both sides of the top of the connecting plate (6), guide holes (24) are provided at both sides of the bottom of the inner side of the groove (21), push rods (20) are sleeved on the inner sides of two groups of the guide holes (24), sealing rings (23) are provided at the tops of the two groups of the push rods (20), and the sealing rings (23) are sleeved on the outer side of the connecting pipe (12), springs (25) are provided at the bottoms of the two groups of the push rods (20), and a vibration assembly is provided at the top of one side of the inner side of the mounting groove (4).

2. The oxide calcining furnace air intake and exhaust structure according to claim 1, characterized in that: The vibration assembly comprises a rotating rod (11), a gear B (13), a rotating wheel (17), an impact rod (18) and a hinged rod (19); the rotating rod (11) is sleeved on the top of one side of the inner side of the installation groove (4); the bottom of the rotating rod (11) is provided with a gear B (13) meshing with a gear C (15); the top of the rotating rod (11) is provided with a rotating wheel (17); one side of the filter box (9) is sleeved with the impact rod (18); and one side of the top of the rotating wheel (17) is sleeved with a hinged rod (19) hinged to the impact rod (18).

3. The oxide calcining furnace air intake and exhaust structure according to claim 1, characterized in that: A collecting box is provided on one side inside the filter box (9), and a compartment door is provided on one side of the filter box (9).

4. The oxide calcining furnace air intake and exhaust structure according to claim 1, characterized in that: An annular groove is provided at the edge of the top of the resistance furnace body (1), and sliding blocks matching the annular groove are provided on both sides of the top of the nozzle (2).

5. The oxide calcining furnace air intake and exhaust structure according to claim 2, characterized in that: One side of the impact rod (18) extends to the inner side of the filter box (9) and is provided with an impact head, and the middle part of the bottom of the filter screen (16) is provided with an arc block matching with the impact head.

6. The oxide calcining furnace air intake and exhaust structure according to claim 1, characterized in that: Movable grooves are provided on both sides of the filter box (9), and movable blocks matching the movable grooves are provided on both sides of the filter screen (16).

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