A sintering furnace rapid cooling system

Abstract

A kind of quick cooling sintering furnace, to solve the technical problems of the sintering furnace of prior art advertisement mentioned in background art, when carrying out cooling, need multiple power source to drive impeller to rotate, carry out heat exchange to sintering furnace and cool the product in sintering furnace, multiple power source driving needs to consume a large amount of energy, technical problem, including furnace body, the heat insulation box is arranged in the furnace body, the sealed box is arranged in the heat insulation box, the oil cylinder is fixed on one side of the furnace body and the oil cylinder telescopic end enters the inside of furnace body, the box door is fixed on the oil cylinder telescopic end, the box door is used to seal heat insulation box and sealed box, the suction pipe and the air pipe are arranged on the furnace body, the air pipe passes through heat insulation box and is communicated with the inside of sealed box, the impeller is arranged in the air pipe and the suction pipe, the driving assembly for driving impeller rotation is arranged outside the furnace body, the cooling box is arranged outside the furnace body, the suction pipe and the air pipe are communicated with the cooling box.

Description

Technical Field

[0001] This invention relates to the field of sintering furnace technology, and more specifically to a rapid cooling system for sintering furnaces. Background Technology

[0002] A sintering furnace is a furnace that uses induction heating to perform protective sintering of heated materials. A vacuum induction sintering furnace is a complete set of equipment that uses the principle of medium-frequency induction heating under vacuum or protective atmosphere conditions to sinter cemented carbide cutting heads and various metal powder pressed bodies. It is designed for the industrial production of cemented carbide, dysprosium metal, and ceramic materials.

[0003] Existing sintering furnaces, such as the utility model patent document with authorization announcement number "CN218646062U" and patent name "A Rapid Cooling System for a Sintering Furnace", disclose a sintering furnace including a furnace body and a cooling system; the furnace body includes a cylinder, a heat insulation cylinder and a sealing box, with the heat insulation cylinder disposed inside the cylinder and the sealing box disposed inside the heat insulation cylinder; the cooling system includes a heat exchanger, with the air inlet and air outlet of the heat exchanger respectively connected to the inside of the sealing box through pipelines.

[0004] The aforementioned patent documents require multiple power sources to drive the impeller to rotate, exchange heat within the sintering furnace, and cool the products inside the sintering furnace. The use of multiple power sources consumes a large amount of energy. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rapid cooling system for sintering furnaces. This system solves the technical problem mentioned in the background section of the prior art, which states that sintering furnaces require multiple power sources to drive impellers to rotate during cooling, thereby exchanging heat within the furnace and cooling the products inside. This process consumes a large amount of energy.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A rapid cooling system for a sintering furnace includes a furnace body, an insulation box inside the furnace body, a sealed box inside the insulation box, a hydraulic cylinder fixed to one side of the furnace body with its telescopic end extending into the furnace body, a box door fixed to the telescopic end of the hydraulic cylinder for sealing the insulation box and the sealed box, an intake pipe and an exhaust pipe connected to the furnace body, the exhaust pipe passing through the insulation box and communicating with the interior of the sealed box, an impeller inside both the exhaust pipe and the intake pipe, a drive assembly for driving the impeller to rotate outside the furnace body, a cooling box outside the furnace body, and both the intake pipe and the exhaust pipe being connected to the cooling box.

[0008] Working principle:

[0009] After the sintering furnace finishes sintering the product, the operator needs to cool the product. The operator starts the hydraulic cylinder, and the cylinder's extension end moves the door away from the heat insulation box and the sealed box, thus opening the space between the sealed box and the furnace body. Then, the operator starts the drive assembly, which drives the impellers in the suction pipe and the blowing pipe to rotate simultaneously. The impeller in the suction pipe can draw in the airflow from the furnace body, thereby guiding the hot airflow from the furnace body to the cooling box. The cooling box cools the hot airflow discharged from the suction pipe, and the impeller in the blowing pipe discharges the cooled hot airflow from the cooling box back into the sealed box, thereby cooling the product in the sealed box and accelerating the cooling speed of the product.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] First, it is equipped with an air intake pipe and an air blowing pipe. The impeller in the air intake pipe can guide the hot airflow in the furnace to the cooling box, and the impeller in the air blowing pipe can guide the cooled airflow in the cooling box back to the sealed box, thereby cooling the product in the sealed box.

[0012] Secondly, a drive assembly is provided, which can drive two impellers to rotate simultaneously. Thus, the hot airflow inside the furnace can be guided to the cooling box and the cooled airflow can be guided back to the sealed box through a single drive assembly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0014] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0015] Explanation of reference numerals in the attached drawings: Furnace body 1, Insulation box 2, Sealing box 3, Oil cylinder 4, Box door 5, Suction pipe 6, Air blowing pipe 7, Impeller 8, Cooling box 9, Sleeve rod 10, Rotating rod 11, Motor 12, First rotating disk 13, Second rotating disk 14, First gear 15, Second gear 16, Mounting box 17, First fixing plate 18, Second fixing plate 19, First fixing ring 20, Second fixing ring 21, Heat exchange tube 22, Water inlet 23, Water outlet 24. Detailed Implementation

[0016] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example:

[0018] like Figure 1As shown, a rapid cooling system for a sintering furnace includes a furnace body 1, an insulation box 2 inside the furnace body 1, a sealing box 3 inside the insulation box 2, a hydraulic cylinder 4 fixed on one side of the furnace body 1 with its telescopic end extending into the furnace body 1, a door 5 fixed on the telescopic end of the hydraulic cylinder 4, the door 5 being used to seal the insulation box 2 and the sealing box 3, an air intake pipe 6 and an air blowing pipe 7 being connected to the furnace body 1, the air blowing pipe 7 passing through the insulation box 2 and communicating with the interior of the sealing box 3, an impeller 8 being provided inside both the air blowing pipe 7 and the air intake pipe 6, a drive assembly for driving the impeller 8 to rotate being provided outside the furnace body 1, and a cooling box 9 being provided outside the furnace body 1, with both the air intake pipe 6 and the air blowing pipe 7 being connected to the cooling box 9.

[0019] After the sintering furnace finishes sintering the product, the operator needs to cool the product inside the furnace. Then, the operator starts the hydraulic cylinder 4. The telescopic end of the hydraulic cylinder 4 can move the door 5 away from the heat insulation box 2 and the sealing box 3, thereby connecting the sealing box 3 with the furnace body 1. The heat inside the sealing box 3 can then be transferred to the furnace body 1. The airflow temperature inside the furnace body 1 will rise due to the temperature inside the sealing box 3. Then, the operator starts the drive assembly, which can simultaneously drive the impellers 8 in the blowing pipe 7 and the suction pipe 6 to rotate. The impeller 8 in the suction pipe 6 can guide the hot airflow in the furnace body 1 to the cooling box 9, which can then cool the hot airflow. The cooled airflow can then be discharged back into the sealing box 3 under the action of the impeller 8 in the blowing pipe 7, thereby cooling the product inside the sealing box 3 and accelerating the cooling efficiency of the product.

[0020] like Figure 1 and Figure 2 As shown, a sleeve rod 10 is rotatably mounted on the air blowing pipe 7, and an impeller 8 inside the air blowing pipe 7 is fixedly mounted on the sleeve rod 10, as shown. Figure 1 As shown, a rotating rod 11 is rotatably provided inside the sleeve rod 10. The rotating rod 11 passes through the air blowing pipe 7 and extends into the air suction pipe 6. An impeller 8 inside the air suction pipe 6 is fixed on the rotating rod 11.

[0021] like Figure 1 and Figure 2As shown, the drive assembly includes a motor 12, a first rotating disk 13 with toothed grooves on its inner wall, a second rotating disk 14 with toothed grooves on its inner wall, a first gear 15, and a second gear 16. An installation box 17 is provided outside the furnace body 1. The motor 12 is fixedly mounted on the installation box 17. The first rotating disk 13 is rotatably mounted inside the installation box 17, and a rotating rod 11 is fixedly connected to the first rotating disk 13. The second rotating disk 14 is rotatably mounted inside the installation box 17, and a sleeve rod 10 is fixedly connected to the second rotating disk 14. A first fixing plate 18 is fixedly mounted inside the installation box 17. The first gear 15 is rotatably mounted on the first fixing plate 18 and meshes with the first rotating disk 13. A second fixing plate 19 is fixedly mounted inside the installation box 17. The second gear 16 is rotatably mounted on the second fixing plate 19 and meshes with the second rotating disk 14. The first gear 15 and the second gear 16 mesh with each other.

[0022] like Figure 1 and Figure 2 As shown, a first fixing ring 20 is fixed inside the mounting box 17, and the outer ring of the first rotating disk 13 can slide inside the first fixing ring 20. A second fixing ring 21 is fixed inside the mounting box 17, and the outer ring of the second rotating disk 14 can slide inside the second fixing ring 21.

[0023] like Figure 1 As shown, a hollow heat exchange tube 22 is fixed inside the cooling box 9. One end of the heat exchange tube 22 is a water inlet 23 and the other end is a water outlet 24. Figure 1 As shown, the blowing pipe 7 and the suction pipe 6 are located on both sides of the heat exchange pipe 22, as follows: Figure 1 As shown, the heat exchange tube 22 is a serpentine tube.

[0024] When the product inside the sintering furnace needs to be cooled, the operator starts the motor 12. The motor 12 drives the rotating rod 11 to rotate, and the rotating rod 11 drives the impeller 8 inside the suction pipe 6 to rotate. Thus, the suction pipe 6 can guide the hot airflow inside the sintering furnace to the cooling box 9. The rotating rod 11 and the suction pipe 6 rotate through bearings.

[0025] When the rotating rod 11 rotates, it drives the first rotating disk 13 to rotate. The rotation of the first rotating disk 13 drives the first gear 15 to rotate, the rotation of the first gear 15 drives the second gear 16 to rotate, the rotation of the second gear 16 drives the second rotating disk 14 to rotate, the rotation of the second rotating disk 14 drives the sleeve rod 10 to rotate, and the rotation of the sleeve rod 10 drives the impeller 8 in the air blowing pipe 7 to rotate. Thus, the airflow exchange in the sintering furnace can be realized through a single power source. The sleeve rod 10 and the rotating rod 11 have a double-layer bushing structure, which is existing technology and will not be described in detail here. The sleeve rod 10 is rotatably connected to the air blowing pipe 7 and the mounting box 17 through bearings.

[0026] The hot airflow drawn into the suction pipe 6 can be guided into the cooling box 9. The water inlet 23 on the heat exchange pipe 22 continuously flows into the heat exchange pipe 22, so that the heat exchange pipe 22 can exchange heat with the hot airflow, thereby reducing the temperature of the airflow. After the airflow is cooled, the airflow can be guided back into the sintering furnace through the blowing pipe 7, thereby cooling the products in the sintering furnace. The water in the heat exchange pipe 22 will have a certain amount of heat after heat exchange. The operator can collect the water in the heat exchange pipe 22 to achieve the effect of waste heat recovery.

[0027] Working principle:

[0028] After the sintering furnace finishes sintering the product, the operator needs to cool the product inside the sintering furnace. Then, the operator starts the hydraulic cylinder 4. The telescopic end of the hydraulic cylinder 4 can move the door 5 away from the heat insulation box 2 and the sealing box 3, so that the sealing box 3 is connected to the furnace body 1. The heat inside the sealing box 3 can then be transferred to the furnace body 1. The airflow temperature inside the furnace body 1 will rise due to the temperature inside the sealing box 3. When it is necessary to cool the product inside the sintering furnace, the operator starts the motor 12. The motor 12 drives the rotating rod 11 to rotate. The rotation of the rotating rod 11 drives the impeller 8 in the suction pipe 6 to rotate. Thus, the suction pipe 6 can guide the hot airflow inside the sintering furnace to the cooling box 9. The rotating rod 11 and the suction pipe 6 rotate through bearings.

[0029] When the rotating rod 11 rotates, it drives the first rotating disk 13 to rotate. The rotation of the first rotating disk 13 drives the first gear 15 to rotate, the rotation of the first gear 15 drives the second gear 16 to rotate, the rotation of the second gear 16 drives the second rotating disk 14 to rotate, the rotation of the second rotating disk 14 drives the sleeve rod 10 to rotate, and the rotation of the sleeve rod 10 drives the impeller 8 in the air blowing pipe 7 to rotate. Thus, the airflow exchange in the sintering furnace can be realized through a single power source. The sleeve rod 10 and the rotating rod 11 have a double-layer bushing structure, which is existing technology and will not be described in detail here. The sleeve rod 10 is rotatably connected to the air blowing pipe 7 and the mounting box 17 through bearings.

[0030] The hot airflow drawn into the suction pipe 6 can be guided into the cooling box 9. The water inlet 23 on the heat exchange pipe 22 continuously flows into the heat exchange pipe 22, so that the heat exchange pipe 22 can exchange heat with the hot airflow, thereby reducing the temperature of the airflow. After the airflow is cooled, the airflow can be guided back into the sintering furnace through the blowing pipe 7, thereby cooling the products in the sintering furnace. The water in the heat exchange pipe 22 will have a certain amount of heat after heat exchange. The operator can collect the water in the heat exchange pipe 22 to achieve the effect of waste heat recovery.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A rapid cooling system for a sintering furnace, characterized in that, The furnace includes a furnace body (1), an insulation box (2) inside the furnace body (1), a sealing box (3) inside the insulation box (2), a hydraulic cylinder (4) fixedly mounted on one side of the furnace body (1), with the telescopic end of the hydraulic cylinder (4) extending into the furnace body (1), and a door (5) fixedly mounted on the telescopic end of the hydraulic cylinder (4), the door (5) being used to seal the insulation box (2) and the sealing box (3), a suction pipe (6) and a blowing pipe (7) being connected to the furnace body (1), the blowing pipe (7) passing through the insulation box (2) and communicating with the interior of the sealing box (3), and both the blowing pipe (7) and the suction pipe (6) being equipped with blades. The furnace body (1) is provided with a drive assembly for driving the impeller (8) to rotate. The furnace body (1) is provided with a cooling box (9). The suction pipe (6) and the blowing pipe (7) are both connected to the cooling box (9). The blowing pipe (7) is rotatably provided with a sleeve (10). The sleeve (10) is fixedly provided with the impeller (8) inside the blowing pipe (7). The sleeve (10) is rotatably provided with a rotating rod (11). The rotating rod (11) passes through the blowing pipe (7) and extends into the suction pipe (6). The rotating rod (11) is fixedly provided with the impeller (8) inside the suction pipe (6).

2. The rapid cooling system for a sintering furnace according to claim 1, characterized in that: The drive assembly includes a motor (12), a first rotating disk (13) with toothed grooves on its inner wall, a second rotating disk (14) with toothed grooves on its inner wall, a first gear (15) and a second gear (16). A mounting box (17) is provided outside the furnace body (1). The motor (12) is fixedly mounted on the mounting box (17). The first rotating disk (13) is rotatably mounted inside the mounting box (17), and the rotating rod (11) is fixedly connected to the first rotating disk (13). The second rotating disk (14) is rotatably mounted inside the mounting box (17), and the rotating rod (15) is fixedly connected to the first rotating disk (16). 0) is fixedly connected to the second rotating disk (14). The first fixing plate (18) is fixedly provided inside the mounting box (17). The first gear (15) is rotatably mounted on the first fixing plate (18) and meshes with the first rotating disk (13). The second fixing plate (19) is fixedly provided inside the mounting box (17). The second gear (16) is rotatably mounted on the second fixing plate (19) and meshes with the second rotating disk (14). The first gear (15) and the second gear (16) mesh with each other.

3. The rapid cooling system for a sintering furnace according to claim 2, characterized in that: The mounting box (17) is fixed with a first fixing ring (20), and the outer ring of the first rotating disk (13) can slide within the first fixing ring (20). The mounting box (17) is fixed with a second fixing ring (21), and the outer ring of the second rotating disk (14) can slide within the second fixing ring (21).

4. The rapid cooling system for a sintering furnace according to claim 1, characterized in that: The cooling box (9) is equipped with a hollow heat exchange tube (22), one end of which is a water inlet (23) and the other end of which is a water outlet (24).

5. The rapid cooling system for a sintering furnace according to claim 4, characterized in that: The blowing pipe (7) and the suction pipe (6) are located on both sides of the heat exchange pipe (22).

6. The rapid cooling system for a sintering furnace according to claim 5, characterized in that: The heat exchange tube (22) is a serpentine tube.

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