A tunnel kiln cooling device

Abstract

This utility model relates to the field of tunnel kiln technology and discloses a tunnel kiln cooling device, including a tunnel kiln cooling body, a cooling assembly on the tunnel kiln cooling body, and an air outlet assembly on the cooling assembly. This tunnel kiln cooling device, by setting an air guide column inside the air outlet nozzle, with multiple evenly distributed air inlets and spiral-shaped guide grooves on the air guide column, allows the airflow blown by the quenching fan to be evenly dispersed through the air inlets after entering the air outlet nozzle. Guided by the spiral guide grooves, the airflow forms a stable rotating flow state, which is beneficial for optimizing the airflow direction. Simultaneously, the multiple evenly distributed air outlet vertical pipes and air outlet nozzles allow cooling air to be blown out simultaneously from multiple directions and positions, forming a uniform cooling airflow field. This allows the cooling airflow to better act on the surface of the object, improving the uniformity of cooling.

Description

Technical Field

[0001] This utility model relates to the field of tunnel kiln technology, specifically a tunnel kiln cooling device. Background Technology

[0002] A tunnel kiln is a continuous firing thermal equipment constructed of refractory materials, forming a long, narrow channel. It is divided into a preheating section, a firing section, and a cooling section. After the kiln car is loaded with products, it enters the preheating section from the kiln head, passes through the firing section and the cooling section in sequence, and finally exits from the kiln tail. It is used for heat treatment processes such as drying, preheating, firing, and cooling of materials, and is widely used in industries such as ceramics, refractory materials, bricks and tiles, metallurgy, and chemicals.

[0003] CN222718627U discloses a tunnel kiln cooling device. It addresses the shortcomings of existing tunnel kiln cooling devices where the air inlet pipe is located on one side of the tunnel kiln, resulting in concentrated air outlets on one side of the tunnel kiln and fewer air outlets in other areas of the tunnel kiln. This leads to poor cooling effect because the air entering the tunnel kiln cannot be quickly and evenly dispersed in the cooling section. The device improves the uniformity of air outlets by setting an inverted U-shaped cooling pipe in the cooling section of the tunnel kiln and setting multiple dispersers composed of a horn-shaped shell, connecting rod and baffle on the surface of the inverted U-shaped cooling pipe.

[0004] However, the baffle reduces the cross-sectional area of ​​the outlet duct. After the airflow is obstructed from contacting the baffle, the air pressure at the baffle increases, causing air to be ejected from the gap between the baffle and the outlet duct, forming a high-speed airflow. After the high-speed airflow is ejected from the gap between the baffle and the outlet duct, the outer shell will diffuse the airflow and reduce the wind speed. When the airflow enters a relatively large space, the wind speed will be further reduced, resulting in significant differences in wind speed at different locations in the tunnel kiln cooling section. The cooling air cannot directly act on the surface of the object to be cooled, affecting the cooling effect on the object. Therefore, a tunnel kiln cooling device is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a tunnel kiln cooling device with the advantage of good cooling effect. It solves the problem that existing cooling devices, which use baffles and air outlet pipes to improve air uniformity, easily lead to significant differences in wind speed at different locations within the tunnel kiln cooling section, and the cooling air cannot directly act on the surface of the object to be cooled, thus affecting the cooling effect on the object.

[0006] To achieve the above-mentioned good cooling effect, the present invention provides the following technical solution: a tunnel kiln cooling device, including a tunnel kiln cooling kiln body, a cooling component on the tunnel kiln cooling kiln body, and an air outlet component on the cooling component;

[0007] The air outlet assembly includes multiple air outlet nozzles fixedly installed on the surface of the cooling assembly. An air guide column is fixedly installed inside the air outlet nozzle. An air guide hole is opened inside the air guide column. A flow guide groove is opened on the surface of the air guide column. A connecting column is fixedly installed on the surface of the air guide column. One end of the connecting column is fixedly connected to the inner surface of the air outlet nozzle.

[0008] Furthermore, the external shape of the air outlet nozzle is conical, and the external shape of the air guide column is cylindrical.

[0009] Furthermore, there are multiple air inlets and multiple flow channels, with the multiple air inlets evenly distributed inside the air guide column and the multiple flow channels evenly distributed on the surface of the air guide column.

[0010] Furthermore, the guide grooves are spirally distributed on the surface of the guide column.

[0011] Furthermore, the cooling assembly includes a quenching fan fixedly installed on the top of the tunnel kiln cooling body, two horizontal air outlet pipes slidably installed inside the tunnel kiln cooling body, a number of evenly distributed vertical air outlet pipes fixedly installed on the surface of the horizontal air outlet pipes, a number of air outlet nozzles evenly distributed on the surface of the vertical air outlet pipes, a connecting hose fixedly installed on the surface of the quenching fan that penetrates into the tunnel kiln cooling body and communicates with the horizontal air outlet pipes, and an adjustment assembly is provided between the horizontal air outlet pipes and the tunnel kiln cooling body.

[0012] Furthermore, the adjustment assembly includes an electric telescopic rod fixedly installed on the surface of the tunnel kiln cooling body. A sleeve is fixedly installed at the output end of the electric telescopic rod, and a crossbar is slidably installed inside the sleeve. A connecting plate is fixedly installed on the surface of the air outlet vertical pipe. Two connecting rods, extending through to the outside of the tunnel kiln cooling body, are fixedly installed on both the connecting plate and the surface of the air outlet horizontal pipe. A linkage plate is fixedly installed at one end of the connecting rod. A drive plate is fixedly installed on the surface of the linkage plate near the tunnel kiln cooling body. An inclined groove is formed on the surface of the drive plate, and the two ends of the crossbar are engaged and slidably installed inside the inclined groove.

[0013] Compared with the prior art, the present invention provides a tunnel kiln cooling device, which has the following beneficial effects:

[0014] 1. This tunnel kiln cooling device, by setting an air guide column inside the air outlet nozzle, with multiple air inlet holes and spiral guide grooves evenly distributed on the air guide column, allows the airflow blown by the quenching fan to be evenly dispersed through the air inlet holes after entering the air outlet nozzle, and guided by the spiral guide grooves, the airflow forms a stable rotating flow state, which is beneficial to optimizing the airflow direction. At the same time, multiple evenly distributed air outlet vertical pipes and air outlet nozzles allow cooling air to be blown out from multiple directions and multiple positions simultaneously, forming a uniform cooling air field, so that the cooling airflow can better act on the surface of the object, improving the uniformity of cooling the object.

[0015] 2. The tunnel kiln cooling device can adjust the distance between the air outlet nozzle and the object according to the size of the object through the adjustment component, so that the air outlet nozzle and the object maintain a relatively suitable distance. This can shorten the distance that the cooling air has to reach the surface of the object, reduce the energy loss of the airflow during the propagation process, and allow more cooling air to directly act on the surface of the object. This increases the supply of cooling air and the cooling intensity, thereby reducing the temperature of the object more quickly and effectively and meeting its cooling requirements. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the air outlet component of this utility model.

[0018] Figure 3 This is a schematic diagram of the air guide column structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structural adjustment component of this utility model.

[0020] In the diagram: 1. Tunnel kiln cooling body; 2. Cooling assembly; 21. Rapid cooling fan; 22. Horizontal exhaust pipe; 23. Vertical exhaust pipe; 24. Connecting hose; 3. Exhaust assembly; 31. Exhaust nozzle; 32. Air guide column; 33. Air intake hole; 34. Flow guide groove; 35. Connecting column; 4. Adjustment assembly; 41. Electric telescopic rod; 42. Sleeve; 43. Horizontal bar; 44. Connecting plate; 45. Connecting rod; 46. Linkage plate; 47. Drive plate; 48. Inclined chute. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 The tunnel kiln cooling device in this embodiment includes a tunnel kiln cooling kiln body 1, a cooling component 2 on the tunnel kiln cooling kiln body 1, and an air outlet component 3 on the cooling component 2. The air outlet component 3 includes a plurality of air outlet nozzles 31 fixedly installed on the surface of the cooling component 2. An air guide column 32 is fixedly installed inside the air outlet nozzle 31. An air guide hole 33 is opened inside the air guide column 32. A guide groove 34 is opened on the surface of the air guide column 32. A connecting column 35 is fixedly installed on the surface of the air guide column 32. One end of the connecting column 35 is fixedly connected to the inner surface of the air outlet nozzle 31.

[0023] In this embodiment, the external shape of the air outlet nozzle 31 is conical, and the external shape of the air guide column 32 is cylindrical.

[0024] In this embodiment, there are multiple air inlets 33 and multiple flow channels 34. Multiple air inlets 33 are evenly distributed inside the air guide column 32, and multiple flow channels 34 are evenly distributed on the surface of the air guide column 32.

[0025] In this embodiment, the guide grooves 34 are spirally distributed on the surface of the guide column 32.

[0026] In this embodiment, the cooling assembly 2 includes a quenching fan 21 fixedly installed on the top of the tunnel kiln cooling body 1. Two horizontal air outlet pipes 22 are slidably installed inside the tunnel kiln cooling body 1. Multiple vertical air outlet pipes 23 are fixedly installed on the surface of the horizontal air outlet pipes 22 and evenly distributed. Multiple air outlet nozzles 31 are evenly distributed on the surface of the vertical air outlet pipes 23. A connecting hose 24 is fixedly installed on the surface of the quenching fan 21, penetrating into the tunnel kiln cooling body 1 and communicating with the horizontal air outlet pipes 22. An adjustment assembly 4 is provided between the horizontal air outlet pipes 22 and the tunnel kiln cooling body 1.

[0027] In this embodiment, the adjustment component 4 includes an electric telescopic rod 41 fixedly installed on the surface of the tunnel kiln cooling kiln body 1. A sleeve 42 is fixedly installed at the output end of the electric telescopic rod 41. A crossbar 43 is slidably installed inside the sleeve 42. A connecting plate 44 is fixedly installed on the surface of the air outlet vertical pipe 23. Two connecting rods 45, which extend to the outside of the tunnel kiln cooling kiln body 1, are fixedly installed on the surfaces of the connecting plate 44 and the air outlet horizontal pipe 22. A linkage plate 46 is fixedly installed at one end of the connecting rod 45. A drive plate 47 is fixedly installed on the surface of the linkage plate 46 near the tunnel kiln cooling kiln body 1. A groove 48 is opened on the surface of the drive plate 47. The two ends of the crossbar 43 are engaged and slidably installed inside the groove 48. The distance between the air outlet nozzle 31 and the object can be adjusted by the adjustment component 2, which is beneficial for adapting to objects of different sizes.

[0028] It should be noted that in this embodiment, the two electric telescopic rods 41 are precisely controlled by a programmable logic controller, and the synchronous movement of the two electric telescopic rods 41 is achieved through programming.

[0029] The working principle of the above embodiments is as follows:

[0030] When the tunnel kiln cooling device is working, the quench fan 21 starts and delivers cooling air to the outlet horizontal pipe 22 through the connecting hose 24. Multiple outlet vertical pipes 23 on the outlet horizontal pipe 22 further distribute the airflow and finally spray it out from the outlet nozzle 31. After the airflow enters the outlet nozzle 31, it is evenly dispersed through the air guide hole 33 and then guided by the spiral guide groove 34 onto the surface of the object. When the air outlet position needs to be adjusted, the electric telescopic rod 41 extends and retracts, driving the sleeve 42 to move, so that the horizontal bar 43 slides in the inclined groove 48 of the drive plate 47, driving the linkage plate 46 and the connecting rod 45 to move the outlet horizontal pipe 22, thereby changing the distance between the outlet nozzle 31 and the object.

[0031] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that performs control functions, and the existing publicly available power connection technologies are not described in detail in the text.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel kiln cooling device comprising a tunnel kiln cooling kiln body (1), characterized by: The tunnel kiln cooling kiln body (1) is provided with a cooling component (2), and the cooling component (2) is provided with an air outlet component (3). The air outlet assembly (3) includes multiple air outlet nozzles (31) fixedly installed on the surface of the cooling assembly (2). An air guide column (32) is fixedly installed inside the air outlet nozzle (31). An air guide hole (33) is opened inside the air guide column (32). A guide groove (34) is opened on the surface of the air guide column (32). A connecting column (35) is fixedly installed on the surface of the air guide column (32). One end of the connecting column (35) is fixedly connected to the inner surface of the air outlet nozzle (31).

2. The tunnel kiln cooling device according to claim 1, characterized in that: The external shape of the air outlet nozzle (31) is conical, and the external shape of the air guide column (32) is cylindrical.

3. The tunnel kiln cooling device according to claim 1, characterized in that: The number of air inlet holes (33) and guide grooves (34) are both multiple. The multiple air inlet holes (33) are evenly distributed inside the air guide column (32), and the multiple guide grooves (34) are evenly distributed on the surface of the air guide column (32).

4. The tunnel kiln cooling device according to claim 1, characterized in that: The guide grooves (34) are spirally distributed on the surface of the air guide column (32).

5. A tunnel kiln cooling device according to claim 1, characterized in that: The cooling assembly (2) includes a quenching fan (21) fixedly installed on the top of the tunnel kiln cooling kiln body (1). Two horizontal air outlet pipes (22) are slidably installed inside the tunnel kiln cooling kiln body (1). Multiple vertical air outlet pipes (23) are fixedly installed on the surface of the horizontal air outlet pipes (22) and evenly distributed. Multiple air outlet nozzles (31) are evenly distributed on the surface of the vertical air outlet pipes (23). A connecting hose (24) is fixedly installed on the surface of the quenching fan (21) that penetrates into the tunnel kiln cooling kiln body (1) and is connected to the horizontal air outlet pipes (22). An adjustment assembly (4) is provided between the horizontal air outlet pipes (22) and the tunnel kiln cooling kiln body (1).

6. A tunnel kiln cooling device according to claim 5, characterized in that: The adjustment component (4) includes an electric telescopic rod (41) fixedly installed on the surface of the tunnel kiln cooling kiln body (1). A sleeve (42) is fixedly installed at the output end of the electric telescopic rod (41). A crossbar (43) is slidably installed inside the sleeve (42). A connecting plate (44) is fixedly installed on the surface of the air outlet vertical pipe (23). Two connecting rods (45) are fixedly installed on the surfaces of the connecting plate (44) and the air outlet horizontal pipe (22) and extend to the outside of the tunnel kiln cooling kiln body (1). A linkage plate (46) is fixedly installed at one end of the connecting rod (45). A drive plate (47) is fixedly installed on the surface of the linkage plate (46) near the tunnel kiln cooling kiln body (1). An inclined groove (48) is opened on the surface of the drive plate (47). The two ends of the crossbar (43) are engaged and slidably installed inside the inclined groove (48).

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