Improved calciner

Abstract

The utility model provides a kind of improved calcining furnace, belong to calcining furnace technical field.Its structure includes: combustion chamber is connected to fuel tank by pipe body, electromagnetic valve is equipped on fuel tank, combustion chamber is connected to furnace body by several fire nozzle, gas supply pipe is fixedly connected in furnace body side end, chute is equipped on base, pulley is equipped in the bottom end of the trolley, pulley and chute sliding fit, mounting seat is equipped on base, located the position of both ends of furnace body, first motor is fixedly connected on mounting seat, steel cable winding material is rotatably connected on mounting seat, the first main shaft of first motor is connected with steel cable winding material, steel cable is wound on steel cable winding material, ring body is fixedly connected in the front and back both ends of the trolley.The utility model uses tubular furnace body as calcining space, material is loaded by trolley in furnace body and executed calcination, in and out furnace process is completed by steel cable traction.In addition, the utility model is additionally provided with combustion chamber and convection air duct respectively, which is conducive to improving heating and cooling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of calcining furnace technology, specifically an improved calcining furnace. Background Technology

[0002] White fused alumina is an important corundum material with high hardness and wear resistance, making it widely used in abrasives, grinding materials, and ceramic products. Calcination is a high-temperature treatment process for white fused alumina, which alters its physical and chemical properties, further improving its performance and application range. During calcination, the white fused alumina particles undergo a series of physical and chemical changes. First, at high temperatures, the crystal structure of white fused alumina changes, with the crystal lattice slightly expanding, increasing the crystal's hardness. Furthermore, the microstructure of the white fused alumina particle surface also changes, forming a dense and hard outer layer, further enhancing its wear resistance and compressive strength.

[0003] In existing technology, the conventional furnace body of a calcining furnace is cylindrical, made of thick steel plates, and lined with refractory materials to ensure its high-temperature resistance. The furnace body is supported by rollers on a base and slightly tilted (the tilt angle is between 10% and 6%). During uniform rotation, the furnace charge gradually moves from a higher position to a lower position, gradually heating up and undergoing physical and chemical changes. The kiln head, as the discharge end of the calcining furnace, is usually larger in diameter than the furnace body and is tightly sealed to the kiln body using stainless steel fish-scale plates. This part mainly includes inspection ports, pulverized coal nozzles, trolleys, and observation holes for easy operation and monitoring. The kiln body, as the core of the calcining furnace, is usually cylindrical and has 3-5 rolling rings. The rolling rings are cast from molten steel and bear the main weight of the kiln body; therefore, the steel plate thickness is slightly greater than other parts. In addition, supporting rollers are also an indispensable component of the kiln body, corresponding to the rolling rings and connected to the foundation, together forming the load-bearing frame of the rotary kiln. This conventional calcining furnace has advantages such as rapid heating and uniform heating, but it is not convenient for loading and unloading. After a furnace is calcined, it needs to be cooled before unloading. This process is inherently time-consuming. In addition, the cooling system of most calcining furnaces is not very efficient, which affects the overall production efficiency to some extent. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: how to design a calcining furnace that is convenient for loading and unloading and has high heating and cooling efficiency.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] An improved calcining furnace includes a furnace body, a base, a support, a fuel tank, a combustion chamber, a solenoid valve, a flame-emitting pipe, a gas supply pipe, a chute, a pulley, a trolley, a mounting base, a first motor, a first main shaft, a steel cable roll, a steel cable, a ring, and a hook. The furnace body is mounted on the base, and the support is fixedly connected to the furnace body. The fuel tank is fixedly connected to the support. The combustion chamber is fixedly mounted outside the furnace body and connected to the fuel tank via a pipe. A solenoid valve is installed on the fuel tank. The combustion chamber is connected to the furnace body via several flame-emitting pipes. The furnace body has a gas supply pipe fixedly connected to its side end. A sliding groove is provided on the base, and a pulley is provided at the bottom end of the trolley. The pulley slides in conjunction with the sliding groove. Mounting seats are provided on the base and at both ends of the furnace body. A first motor is fixedly connected to the mounting seats, and a steel cable roll is rotatably connected to the mounting seats. The first main shaft of the first motor is connected to the steel cable roll, and a steel cable is wound on the steel cable roll. Ring bodies are fixedly connected to both the front and rear ends of the trolley, and hook bodies are fixedly connected to the ends of the steel cable. The hook bodies and ring bodies are hooked together.

[0007] Preferably, the furnace body is in the shape of a pipe, and the mounting seats at both ends of the furnace body are located outside the furnace body.

[0008] Preferably, the top wall of the furnace body is arched, and each flame tube is evenly distributed circumferentially on the top wall of the furnace body; the furnace body extends in a straight line.

[0009] Preferably, the air supply pipe is connected to the fan, and an air valve is installed on the air supply pipe.

[0010] Preferably, the furnace body includes a calcination section and a cooling section, which are connected to each other. An air duct is fixedly connected to the side wall of the cooling section, and an air supply device is provided in the air duct.

[0011] As a preferred option, the air duct is provided in two sections, with the two sections located on the left and right sides of the furnace body, respectively.

[0012] Preferably, the air supply device includes a second motor, a support rod, a second main shaft, a support plate, and blades, wherein the support rod is fixedly connected to the inner wall of the air duct, the second motor is fixedly connected to the support rod, the support plate is fixedly connected to the second main shaft of the second motor, and a plurality of blades are fixedly connected to the support plate.

[0013] In the above technical solution, the furnace body has a tubular structure that extends in a straight line, serving as the execution space for the calcination process; the base serves both as a basic load-bearing structure and as a mounting groove; the support is used to mount the fuel tank, which is filled with gas and injected into the combustion chamber through its own pressure and nozzles, with an electromagnetic valve controlling the opening and closing of this gas path; the combustion chamber is connected to the furnace body through a flame pipe to achieve rapid heating, which can be used for efficient preheating in the initial stage of calcination; the gas supply pipe, in conjunction with a fan, supplies air for the calcination process. The bottom of the trolley is equipped with pulleys that cooperate with the grooves on the base, allowing the trolley to move along the grooves. Based on this structure, the trolley can be loaded with material and enter the furnace body along the grooves, and then discharged as a whole after calcination. The mounting base is used to set up the first motor and the steel cable roll. The first main shaft of the first motor is connected to the steel cable roll, which can drive the steel cable roll to rotate, thereby driving the steel cable to be wound up and unwound. There are two sets of this winding and unwinding mechanism, located on the outer side of the two ends of the furnace body, so that the trolley can be pulled from both ends to realize the movement and return of the trolley. Both the front and rear ends of the trolley are equipped with rings for hooking with the hooks at the ends of the steel cables on both sides, serving as the force points between the steel cables and the trolley.

[0014] In the preferred technical solution, a cooling section can be added at the end of the calcination section, and a fan can be used to deliver air in a convective state to improve the cooling efficiency.

[0015] This invention provides an improved calcining furnace. The technical solution uses a tubular furnace body as the calcination space, and materials are loaded into the furnace body using trolleys for calcination. The process of loading and unloading the furnace is completed by steel cable traction. Furthermore, this invention adds a combustion chamber to the calcination process and a convection duct to the cooling process, which helps to improve heating and cooling efficiency. Attached Figure Description

[0016] Figure 1 This is the first perspective view of this utility model;

[0017] Figure 2 This is the first perspective view of the present invention in a sectional state;

[0018] Figure 3 This is the second perspective view of this utility model;

[0019] Figure 4 This is the second perspective view of the present invention in a sectional state;

[0020] Figure 5 yes Figure 4 A magnified view of a portion of position A in the middle;

[0021] In the picture:

[0022]

[0023] Detailed Implementation

[0024] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0025] Example 1

[0026] An improved calcining furnace, such as Figures 1-5 As shown, the furnace includes a furnace body 1, a base 2, a support 3, a fuel tank 4, a combustion chamber 5, a solenoid valve 6, a flame-emitting pipe 7, a gas supply pipe 8, a chute 9, a pulley 10, a trolley 11, a mounting base 12, a first motor 13, a first main shaft 14, a steel cable roll 15, a steel cable 16, a ring 17, and a hook 18. The furnace body 1 is mounted on the base 2. The support 3 is fixedly connected to the furnace body 1, and the fuel tank 4 is fixedly connected to the support 3. The combustion chamber 5 is fixedly mounted outside the furnace body 1 and connected to the fuel tank 4 via a pipe. A solenoid valve 6 is installed on the fuel tank 4. The combustion chamber 5 is connected to the furnace body 1 via several flame-emitting pipes 7. A gas supply pipe 8 is fixedly connected to the side end of the trolley 11. A sliding groove 9 is provided on the base 2. A pulley 10 is provided at the bottom end of the trolley 11. The pulley 10 slides in cooperation with the sliding groove 9. Mounting seats 12 are provided on the base 2 at both ends of the furnace body 1. A first motor 13 is fixedly connected to the mounting seat 12. A steel cable roll 15 is rotatably connected to the mounting seat 12. The first main shaft 14 of the first motor 13 is connected to the steel cable roll 15. A steel cable 16 is wound on the steel cable roll 15. A ring body 17 is fixedly connected to both the front and rear ends of the trolley 11. A hook body 18 is fixedly connected to the end of the steel cable 16. The hook body 18 and the ring body 17 are hooked together.

[0027] In the above technical solution, the furnace body 1 has a tubular structure and extends in a straight line, serving as the execution space for the calcination process; the base 2 serves as both a basic load-bearing structure and a mounting groove 9; the support 3 is used to mount the fuel tank 4, which is filled with gas and injects the gas into the combustion chamber 5 through its own pressure and nozzles; the solenoid valve 6 controls the opening and closing of this gas path; the combustion chamber 5 is connected to the furnace body 1 through the flame pipe 7 to achieve rapid heating, which can be used for efficient preheating in the initial stage of calcination; the gas supply pipe 8, in conjunction with the fan, supplies air for the calcination process. The bottom of the trolley 11 is equipped with a pulley 10, which cooperates with the slide groove 9 on the base 2, allowing the trolley 11 to move along the slide groove 9. Based on this structure, the trolley 11 can be loaded with material and enter the furnace body 1 along the slide groove 9, and then discharged as a whole after calcination. The mounting base 12 is used to set the first motor 13 and the steel cable roll 15. The first main shaft 14 of the first motor 13 is connected to the steel cable roll 15, which can drive the steel cable roll 15 to rotate, thereby driving the steel cable 16 to be wound up and unwound. There are two sets of this winding and unwinding mechanism, which are located on the outer side of the two ends of the furnace body 1, so that the trolley 11 can be pulled from both ends to realize the movement and return of the trolley 11. Both the front and rear ends of the trolley 11 are equipped with rings 17, which are used to hook the hooks 18 at the ends of the steel cables 16 on both sides, serving as the force points between the steel cables 16 and the trolley 11.

[0028] Example 2

[0029] An improved calcining furnace, such as Figures 1-5As shown, the furnace includes a furnace body 1, a base 2, a support 3, a fuel tank 4, a combustion chamber 5, a solenoid valve 6, a flame-emitting pipe 7, a gas supply pipe 8, a chute 9, a pulley 10, a trolley 11, a mounting base 12, a first motor 13, a first main shaft 14, a steel cable roll 15, a steel cable 16, a ring 17, and a hook 18. The furnace body 1 is mounted on the base 2. The support 3 is fixedly connected to the furnace body 1, and the fuel tank 4 is fixedly connected to the support 3. The combustion chamber 5 is fixedly mounted outside the furnace body 1 and connected to the fuel tank 4 via a pipe. A solenoid valve 6 is installed on the fuel tank 4. The combustion chamber 5 is connected to the furnace body 1 via several flame-emitting pipes 7. A gas supply pipe 8 is fixedly connected to the side end of the furnace body 1. A sliding groove 9 is provided on the base 2. A pulley 10 is provided at the bottom end of the trolley 11, and the pulley 10 slides in cooperation with the sliding groove 9. Mounting seats 12 are provided on the base 2 at both ends of the furnace body 1. A first motor 13 is fixedly connected to the mounting seat 12. A steel cable roll 15 is rotatably connected to the mounting seat 12. The first main shaft 14 of the first motor 13 is connected to the steel cable roll 15. A steel cable 16 is wound on the steel cable roll 15. Ring bodies 17 are fixedly connected to both the front and rear ends of the trolley 11. A hook body 18 is fixedly connected to the end of the steel cable 16, and the hook body 18 is hooked to the ring body 17. The furnace body 1 is pipe-shaped, and the mounting seats 12 at both ends of the furnace body 1 are located outside the furnace body 1. The top wall of the furnace body 1 is arched, and each flame-spraying pipe 7 is evenly distributed circumferentially on the top wall of the furnace body 1. The furnace body 1 extends in a straight line. A gas supply pipe 8 is connected to a blower, and a gas valve 25 is installed on the gas supply pipe 8. The furnace body 1 includes a calcination section and a cooling section, which are connected to each other. A duct 19 is fixedly connected to the side wall of the cooling section, and an air supply device is installed in the duct 19. The duct 19 has two sections, which are located on the left and right sides of the furnace body 1, respectively. The air supply device includes a second motor 20, a support rod 21, a second main shaft 22, a support plate 23, and blades 24. The support rod 21 is fixedly connected to the inner wall of the duct 19, the second motor 20 is fixedly connected to the support rod 21, the support plate 23 is fixedly connected to the second main shaft 22 of the second motor 20, and several blades 24 are fixedly connected to the support plate 23.

[0030] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of this utility model application should be included within the protection scope of this utility model.

Claims

1. An improved calcining furnace, characterized in that... The furnace includes a furnace body (1), a base (2), a support (3), a fuel tank (4), a combustion chamber (5), a solenoid valve (6), a flame pipe (7), a gas supply pipe (8), a chute (9), a pulley (10), a trolley (11), a mounting base (12), a first motor (13), a first main shaft (14), a steel cable roll (15), a steel cable (16), a ring (17), and a hook (18). The furnace body (1) is mounted on the base (2). A support (3) is fixedly connected to the furnace body (1). A fuel tank (4) is fixedly connected to the support (3). A combustion chamber (5) is fixedly installed outside the furnace body (1). The combustion chamber (5) is connected to the fuel tank (4) via a pipe. A solenoid valve (6) is installed on the fuel tank (4). The combustion chamber (5) is connected to the furnace body (1) via several flame pipes (7). 1) A gas supply pipe (8) is fixedly connected to the side end of the furnace body (1). A sliding groove (9) is provided on the base (2). A pulley (10) is provided at the bottom end of the trolley (11). The pulley (10) slides with the sliding groove (9). Mounting seats (12) are provided on the base (2) at both ends of the furnace body (1). A first motor (13) is fixedly connected to the mounting seat (12). A steel cable roll (15) is rotatably connected to the mounting seat (12). The first main shaft (14) of the first motor (13) is connected to the steel cable roll (15). A steel cable (16) is wound on the steel cable roll (15). A ring body (17) is fixedly connected to both the front and rear ends of the trolley (11). A hook body (18) is fixedly connected to the end of the steel cable (16). The hook body (18) and the ring body (17) are hooked together.

2. The improved calcining furnace according to claim 1, characterized in that, The furnace body (1) is in the shape of a pipe, and the mounting seats (12) at both ends of the furnace body (1) are located outside the furnace body (1).

3. An improved calcining furnace according to claim 2, characterized in that, The top wall of the furnace body (1) is arched, and each flame pipe (7) is evenly distributed circumferentially on the top wall of the furnace body (1); the furnace body (1) extends in a straight line as a whole.

4. An improved calcining furnace according to claim 1, characterized in that, An air supply pipe (8) is connected to a fan, and an air valve (25) is provided on the air supply pipe (8).

5. An improved calcining furnace according to claim 2, characterized in that, The furnace body (1) includes a calcination section and a cooling section, which are connected to each other. An air duct (19) is fixedly connected to the side wall of the cooling section, and an air supply device is provided in the air duct (19).

6. An improved calcining furnace according to claim 5, characterized in that, The air duct (19) is divided into two sections, which are located on the left and right sides of the furnace body (1), respectively.

7. An improved calcining furnace according to claim 5, characterized in that, The air supply device includes a second motor (20), a support rod (21), a second main shaft (22), a support plate (23), and blades (24). The support rod (21) is fixedly connected to the inner wall of the air duct (19), the second motor (20) is fixedly connected to the support rod (21), the support plate (23) is fixedly connected to the second main shaft (22) of the second motor (20), and a number of blades (24) are fixedly connected to the support plate (23).

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