A structure of industrial kiln air cooling system

Abstract

The present invention relates to the technical field of kiln cooling, and in particular to an industrial kiln air cooling system structure, comprising: an outer shell; a furnace, which is arranged in the outer shell, and is respectively provided with a furnace air inlet pipe and an exhaust chimney at the air inlet end and the air outlet end of the furnace, the furnace comprising a top member and a bottom member, the bottom member is formed by bending a plate material multiple times to form a structure with only one opening, the top member is fixed to the opening of the bottom member, and the height of the top member is lower than the height of the top of the bottom member, so that the bottom member is higher than the structure on both sides of the top member, and is constructed as a vertical plate, which is located on the left and right sides of the furnace along the length direction of the furnace, and extends upward to the top of the outer shell, is connected with the top of the outer shell to separate the chamber between the furnace and the outer shell into a first chamber and a second chamber, the first chamber and the second chamber are both connected with an air inlet pipe and an exhaust pipe, the air inlet pipe and the exhaust pipe are both arranged on the outer shell, so as to realize the airflow circulation, replenishment and discharge of the first chamber and the second chamber.

Description

Technical Field

[0001] The invention relates to the technical field of kiln cooling, and in particular to an industrial kiln air cooling system structure. Background Art

[0002] In the application of industrial kilns, the cooling system is crucial to improving production efficiency and product quality. Traditional cooling methods mainly include air cooling and water cooling. Although air-cooled furnace bodies and water-cooled furnace bodies are simple to manufacture and low in cost, they have some obvious shortcomings in practical applications.

[0003] The air-cooled furnace body mainly removes the heat in the kiln through natural wind or forced ventilation. However, the traditional cooling air jacket structure is: the inner tank and the outer shell are welded together through the flanges at the front and rear ends of the cooling air jacket, the middle of the jacket is empty and there is no support, the overall strength of the air jacket is insufficient, and heat exchange is only carried out on the upper, lower, left and right surfaces of the inner tank. The heat dissipation area is small and the furnace cooling effect is poor. During heat exchange, the hot air flows upward, making the top temperature of the inner tank higher than the surrounding temperature, resulting in uneven heat dissipation, affecting the uniformity of the temperature in the inner tank and affecting the processing quality of the product. The outer shell is welded as a whole using a whole sheet, which causes large deformation during welding and high material cost.

[0004] Therefore, the present application has developed an industrial kiln air cooling system structure to solve the problems existing in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide an industrial kiln air cooling system structure to solve the problems of uneven heat dissipation and insufficient overall strength of the kiln in the prior art.

[0006] The technical solution of the present invention is: an industrial kiln air cooling system structure, comprising:

[0007] shell;

[0008] A furnace is arranged in an outer shell, and a furnace air inlet pipe and an exhaust chimney are respectively provided at the air inlet end and the air outlet end of the furnace. The furnace includes a top member and a bottom member. The bottom member is formed by bending a plate multiple times to form a structure with only one opening. The top member is fixed to the opening of the bottom member, and the height of the top member is lower than the height of the top of the bottom member, so that the bottom member is higher than the two side structures of the top member to form vertical plates. The vertical plates are located on both sides of the furnace along the length direction of the furnace, and the vertical plates extend upward to the top of the outer shell and are connected to the top of the outer shell to separate the chamber between the furnace and the outer shell into a first chamber and a second chamber. The first chamber and the second chamber are both connected with an air inlet pipe and an exhaust pipe to realize airflow circulation in the first chamber and the second chamber. The air inlet pipe and the exhaust pipe are both arranged on the outer shell.

[0009] Preferably, the outer shell includes a first connecting plate, a second connecting plate and a pair of third connecting plates, the pair of third connecting plates are located on both sides of the furnace along the length direction of the furnace, and the first connecting plate and the second connecting plate are respectively provided between the corresponding ends of the two third connecting plates, so that the first connecting plate, the second connecting plate and the pair of third connecting plates are connected end to end to form a completely sealed shell.

[0010] Preferably, the third connecting plate is bent at least once near one end of the first connecting plate, and the spacing between the inner walls of the two vertical plates is the same as the length of the first connecting plate, so that the end of the first connecting plate and the end or the bend of the third connecting plate are respectively abutted against the vertical plates and sealed by welding.

[0011] Preferably, at the position where the first connecting plate and the third connecting plate are welded to the vertical plate, the vertical plate protrudes toward the top, so that the first connecting plate and the third connecting plate are welded to the side wall of the vertical plate.

[0012] Preferably, the third connecting plate is bent at least twice at one end close to the second connecting plate, and the two ends of the second connecting plate are bent at least once. The second connecting plate and the third connecting plate are spliced ​​together at the bends toward the second chamber, and abutment portions protruding toward the second chamber are formed by welding.

[0013] Preferably, a middle partition is provided in the second chamber to divide the second chamber into a plurality of cooling circuits, and the outer contour of the middle partition is closely attached to the outer wall surface of the furnace and the inner wall surface of the shell.

[0014] Preferably, two abutment grooves are provided on the bottom surface of the middle partition, the positions of the two abutment grooves correspond to the two abutment parts, and the shapes of the abutment grooves are matched with the abutment parts.

[0015] Preferably, the two third connecting plates are symmetrical relative to the furnace, so that the first connecting plate, the second connecting plate and the vertical plate are all symmetrical relative to the furnace.

[0016] Preferably, the side of the second chamber is a U-shaped structure, with two air inlet pipes at the bottom and two air outlet pipes at the top, which are symmetrical relative to the furnace. When air is taken in from the two air inlet pipes, the gas flows along the U-shaped channel to both sides to the two exhaust pipes.

[0017] Preferably, a plurality of heat dissipation ribs are welded on the top plate and the bottom plate of the furnace to increase the heat dissipation area of ​​the furnace.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) The chamber between the furnace and the shell is divided into a first chamber and a second chamber by a vertical plate. The first chamber is located at the top of the furnace and is connected to a set of air inlet pipes and air outlet pipes to increase the heat dissipation power of the top of the furnace. At the same time, the two sets of air inlet pipes and air outlet pipes of the second chamber are used to achieve uniform temperature in the furnace.

[0020] (2) The four connecting plates are bent and then welded together to form the shell. In the cross-sectional direction of the shell, the welds are symmetrically distributed on the left and right, which greatly reduces the welding deformation of the shell, greatly improves the overall strength and rigidity, and does not require the use of a whole sheet of material, significantly reducing the material cost;

[0021] (3) The vertical plate extends toward the top plate of the shell and is welded to the first connecting plate and the third connecting plate to increase the overall strength of the cooling system;

[0022] (4) The middle partition is welded to the outer side of the furnace, dividing the furnace into several sections, strengthening the rigidity of the furnace and supporting the outer shell, greatly improving the overall strength of the cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0024] Figure 1 It is a side cross-sectional view of the structure of an industrial furnace air cooling system according to the present invention;

[0025] Figure 2 A side cross-sectional view of the furnace of the present invention;

[0026] Figure 3 A side sectional view of the housing of the present invention;

[0027] Figure 4 It is a schematic structural diagram of the middle partition described in the present invention.

[0028] Among them: 1. outer shell; 11. first connecting plate; 12. second connecting plate; 13. third connecting plate; 2. furnace; 21. vertical plate; 22. furnace air inlet pipe; 23. exhaust chimney; 24. top member; 25. bottom member; 3. first chamber; 4. second chamber; 41. middle partition; 5. air inlet pipe; 6. exhaust pipe; 7. abutment portion; 8. abutment groove. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with specific embodiments:

[0030] like Figure 1-Figure 3As shown, an industrial kiln air cooling system structure includes a shell 1 and a furnace 2. The furnace 2 is arranged in the shell 1, and a furnace air inlet pipe 22 is provided at the air inlet end of the furnace 2, and an exhaust chimney 23 is provided at the air outlet end of the furnace 2. The gas enters the furnace 2 through the air inlet pipe 5 and flows out from the exhaust chimney 23. The furnace 2 includes a top member 24 and a bottom member 25. The bottom member 25 is bent into a U-shaped structure by a plate. The top member 24 is fixed to the opening of the bottom member 25. The structure of the bottom member 25 higher than the two sides of the top member 24 is a vertical plate 21. This vertical plate 21 extends to the top of the shell 1 and divides the chamber between the furnace 2 and the shell 1 into a first chamber 3 and a second chamber 4. The first chamber 3 is located at the top of the furnace 2, and the second chamber 4 semi-surrounds the first chamber 3. The first chamber 3 is provided with a group of air inlet pipes 5 and exhaust pipes 6, which can realize the first chamber 3. The side of the second chamber 4 is a U-shaped structure. Two air inlet pipes 5 are provided at the bottom of the second chamber 4, and two air outlet pipes are provided at the top, and they are symmetrical with respect to the furnace 2. When air is taken in from the two air inlet pipes 5, the gas flows to the two exhaust pipes 6 on both sides along the U-shaped channel, so as to realize the air circulation of the second chamber 4, so that the airflow can be evenly distributed on the entire side of the second chamber 4, avoiding the situation where the airflow is too concentrated or missing in a certain area, and at the same time, it also increases the flow path and residence time of the gas in the second chamber 4, so that the gas can more fully exchange heat with the inside of the kiln, thereby improving the cooling efficiency, and the U-shaped structure makes the second chamber 4 more stable in structure, which helps to reduce deformation and vibration caused by airflow impact and temperature changes.

[0031] In one embodiment, the top structure 24 and the bottom structure 25 are an integrated structure formed by bending a plate, and vertical plates 21 are welded on both sides of the structure to form a furnace. The vertical plates 21 extend toward the top of the outer shell 1 until they are located between the first connecting plate 11 and the third connecting plate 13 and are connected by welding.

[0032] Among them, by providing the first chamber 3 and the second chamber 4 with an air inlet pipe 5 and an exhaust pipe 6, it can be ensured that the gas circulates effectively in the two chambers, which helps to distribute the heat generated by the combustion in the furnace 2 more evenly, improves the combustion efficiency, and also helps to reduce the unevenness of the temperature inside the furnace 2. The airflow circulation can promote the transfer of heat in the furnace 2 to the outer shell 1 and the surrounding environment, thereby improving the heat exchange efficiency, helping to make full use of the heat generated by the combustion, and improving the thermal efficiency of the entire furnace 2 system. Due to the existence of the airflow circulation, the temperature and pressure inside the furnace 2 can be more evenly distributed, which can reduce the dust accumulation and coking inside the furnace 2, thereby reducing maintenance costs.

[0033] In this embodiment, the outer shell 1 includes a first connecting plate 11, a second connecting plate 12 and a pair of third connecting plates 13. The pair of third connecting plates 13 are located on both sides of the furnace 2 along the length direction of the furnace 2. The first connecting plate 11 and the second connecting plate 12 are connected between the corresponding two ends of the two third connecting plates 13, so that the first connecting plate 11, the second connecting plate 12 and the pair of third connecting plates 13 are welded end to end to form a complete and sealed shell. Through the combined welding of multiple connecting plates, the overall structural strength and stability of the outer shell 1 are significantly improved, and it can withstand greater external pressure and impact, ensuring the normal operation of the kiln in harsh environments. At the same time, it can make the outer shell 1 simpler and faster in the installation process, and can be quickly assembled and disassembled.

[0034] In one embodiment, the third connecting plate 13 is bent once at one end close to the first connecting plate 11. By bending the third connecting plate 13 and closely contacting the vertical plate 21, a strong and sealed weld can be formed in combination with a welding process, which can effectively prevent external air, dust, moisture and other impurities from entering the kiln, ensure the cleanliness and dryness of the kiln, and help maintain the temperature and pressure stability of the kiln. The welded connection between the bent third connecting plate 13 and the vertical plate 21 not only improves the sealing performance, but also enhances the structural strength of the entire housing 1. At the same time, the seal The sealed shell 1 helps to optimize the air flow circulation inside the kiln. Through the distribution of the position and number of the air inlet pipe 5 and the exhaust pipe 6, the uniform distribution and effective circulation of the air flow inside the kiln can be achieved, and the uniform temperature of the kiln can be achieved; the third connecting plate 13 is bent twice at one end close to the second connecting plate 12, and the second connecting plate 12 is bent once. The bending part of the third connecting plate 13 and the bending part of the second connecting plate 12 are welded. Through multiple bending and welding, the connection between the second connecting plate 12 and the third connecting plate 13 is made firmer, forming a structure with higher overall strength.

[0035] In another embodiment, the first connecting plate 11 and the two third connecting plates 13 are bent into a whole by a piece of plate. The welding of the vertical plate 21 is completed first, and then welded to the second connecting plate 12. The connection formed by bending the plate makes the connection between the first connecting plate 11, the third connecting plate 13 and the vertical plate 21 tighter and more stable, which can resist external pressure and tension, and improve the strength and stability of the overall structure.

[0036] In other embodiments, the second connecting plate 12 and the two third connecting plates 13 are bent into a whole by a piece of plate, and are welded to the vertical plate 21 and the first connecting plate 11, thereby improving the overall rigidity of the structure, reducing stress concentration at the connection, and improving the deformation resistance of the structure.

[0037] Furthermore, at the position where the first connecting plate 11 and the third connecting plate 13 are welded to the vertical plate 21, the vertical plate 21 protrudes toward the top, so that the first connecting plate 11 and the third connecting plate 13 are welded to the side wall of the vertical plate 21, thereby increasing the welding area, making the welding between the first connecting plate 11 and the third connecting plate 13 and the vertical plate 21 more secure and able to provide a stronger connection force, thereby improving the stability and durability of the entire structure. At the same time, the vertical plate 21 protruding toward the top increases the deformation resistance of the entire outer shell 1. During the operation of the kiln, due to the high temperature and airflow, the outer shell 1 may be subjected to certain thermal stress and mechanical stress. The protruding structure of the vertical plate 21 can effectively disperse and resist stress, thereby reducing the deformation and damage risks of the outer shell 1.

[0038] like Figure 3 As shown, in order to improve the stability and ease of installation of the overall structure, the third connecting plate 13 and the second connecting plate 12 are welded at the bend to form abutment 7. The abutment 7 increases the rigidity of the outer shell 1, reduces deformation and vibration caused by temperature changes or external pressure, and improves the stability and reliability of the entire system. The abutment 7 protrudes toward the second chamber 4, which can guide the airflow to pass through the area more smoothly, reduces the resistance and turbulence of the airflow at the joints, helps to optimize the airflow circulation inside the kiln, and improves the heat dissipation efficiency and cooling effect.

[0039] In order to improve the structural strength of the outer shell 1, a middle partition 41 is provided in the second chamber 4. The middle partition 41 divides the second chamber 4 into a plurality of cooling circuits so that the cooling gas flows more evenly in each circuit, thereby improving the cooling efficiency, helping to reduce the accumulation of heat in the chamber, ensuring the stability and uniformity of the temperature inside the kiln, and increasing the structural strength of the second chamber 4. When high temperature or high pressure is generated inside the furnace 2, the middle partition 41 can effectively disperse and resist these stresses, reducing the deformation and damage risks of the outer shell 1. The outer contour of the middle partition 41 fits tightly with the outer wall of the furnace 2 and the inner wall of the outer shell 1, which can reduce gaps and leakage points during welding, thereby improving the sealing performance of the entire structure.

[0040] like Figure 3-Figure 4 As shown, the bottom surface of the middle partition 41 is provided with two abutment grooves 8 which correspond to the position and are adapted in shape to the abutment portion 7, ensuring a close fit between the two, thereby greatly improving the stability and firmness of the connection. During installation, the adaptation of the abutment grooves 8 to the abutment portion 7 can make the installation process simpler and faster, and it is only necessary to accurately insert the abutment portion 7 into the corresponding abutment groove 8 without the need for additional fixing or adjustment steps.

[0041] Furthermore, the two third connecting plates 13 are symmetrical relative to the furnace 2, so that the first connecting plate 11, the second connecting plate 12 and the vertical plate 21 are all symmetrical relative to the furnace 2, and the welds are symmetrically distributed on the left and right, so that the kiln air cooling system structure is more balanced and stable as a whole, and can reduce the stress and deformation caused by asymmetry. The symmetrically arranged third connecting plates 13 and the first connecting plates 11 and the second connecting plates 12 are connected to help form a more uniform airflow circulation. During the operation of the kiln, the airflow can pass through each chamber and connection more smoothly, reducing airflow resistance and turbulence, thereby improving heat dissipation efficiency and cooling effect, and the symmetrically designed structure can increase the overall rigidity and deformation resistance of the kiln air cooling system structure.

[0042] In order to improve the heat dissipation efficiency, multiple heat dissipation ribs are welded on the top plate and bottom plate of the furnace 2. The heat dissipation ribs greatly increase the contact area between the furnace 2 and the surrounding environment, thereby improving the heat transfer efficiency. When the furnace 2 is working, the generated heat can be transferred to the surrounding environment more quickly through the heat dissipation ribs, thereby achieving effective heat dissipation. The heat dissipation ribs not only play a role in heat dissipation, but also enhance the structural strength of the top plate and bottom plate of the furnace 2, reducing the deformation and damage risk of the furnace 2.

[0043] The implementation principle of this embodiment:

[0044] When installing the kiln air cooling system structure, firstly, the middle partition plate 41 is attached and welded to the two vertical plates 21 and the bottom plate of the furnace 2 to separate the furnace 2 in the length direction, and then the two third connecting plates 13, the first connecting plate 11 and the second connecting plate 12 are installed on the outside of the furnace 2, and the ends of the two third connecting plates 13 close to the first connecting plate 11 and the two ends of the first connecting plate 11 are respectively in contact with the side walls of the vertical plates 21 and connected by welding, and finally the bending parts of the two third connecting plates 13 close to the second connecting plate 12 are connected to the second connecting plate 12. The bending parts of the connecting plates 12 are spliced ​​and connected by welding to form the abutment part 7. The first connecting plate 11, the second connecting plate 12 and the third connecting plate 13 are welded to form a sealed shell 1, and the vertical plate 21 and the abutment part 7 provide support to improve the stability of the shell 1 and prevent deformation due to force. At the same time, the vertical plate 21 divides the chamber between the shell 1 and the furnace 2 into a first chamber 3 and a second chamber 4. The first chamber 3 and the second chamber 4 are both connected to an air inlet pipe 5 and an air outlet pipe. By forming an air flow circulation in the first chamber 3 and the second chamber 4, the temperature uniformity during cooling is achieved.

[0045] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. An industrial kiln air cooling system structure, characterized in that: include: Housing (1); A furnace (2) is arranged in the shell (1); the furnace (2) is provided with a furnace air inlet pipe (22) and an exhaust chimney (23) at the air inlet end and the air outlet end, respectively; the furnace (2) comprises a top member (24) and a bottom member (25); the bottom member (25) is formed by bending a plate material multiple times to form a structure having only one opening; the top member (24) is fixed to the opening of the bottom member (25); the height of the top member (24) is lower than the height of the top of the bottom member (25), so that the bottom member (25) is higher than the structural uprights (21) on both sides of the top member (24); The vertical plates (21) are located on the left and right sides of the furnace (2) along the length direction of the furnace (2); the vertical plates (21) extend upward to the top of the shell (1) and are connected to the top of the shell (1) to separate the chamber between the furnace (2) and the shell (1) into a first chamber (3) and a second chamber (4); the first chamber (3) and the second chamber (4) are both connected to an air intake pipe (5) and an air exhaust pipe (6); the air intake pipe (5) and the air exhaust pipe (6) are both arranged on the shell (1) to realize air circulation, replenishment and exhaust of the first chamber (3) and the second chamber (4); The shell (1) comprises a first connecting plate (11), a second connecting plate (12) and a pair of third connecting plates (13), wherein the pair of third connecting plates (13) are located on both sides of the furnace (2) along the length direction of the furnace (2), and the first connecting plate (11) and the second connecting plate (12) are respectively provided between the two corresponding ends of the two third connecting plates (13), so that the first connecting plate (11), the second connecting plate (12) and the pair of third connecting plates (13) are connected end to end to form a completely sealed shell; One end of the third connecting plate (13) close to the second connecting plate (12) is bent at least twice, and both ends of the second connecting plate (12) are bent at least once, and the second connecting plate (12) and the third connecting plate (13) are spliced ​​together at the bends toward the second chamber (4), and abutment portions (7) protruding toward the second chamber (4) are formed by welding; A middle partition (41) is provided in the second chamber (4) to divide the second chamber (4) into a plurality of cooling circuits, and the outer contour of the middle partition (41) is closely attached to the outer wall surface of the furnace (2) and the inner wall surface of the outer shell (1).

2. The industrial furnace air cooling system structure according to claim 1 is characterized in that: The third connecting plate (13) is bent at least once at one end close to the first connecting plate (11), and the distance between the inner walls of the two vertical plates (21) is the same as the length of the first connecting plate (11), so that the end of the first connecting plate (11) and the end or the bent part of the third connecting plate (13) are respectively abutted against the vertical plate (21) and sealed by welding.

3. The industrial furnace air cooling system structure according to claim 2 is characterized in that: At the position where the first connecting plate (11) and the third connecting plate (13) are welded to the vertical plate (21), the vertical plate (21) protrudes toward the top, so that the first connecting plate (11) and the third connecting plate (13) are welded to the side wall of the vertical plate (21).

4. The industrial furnace air cooling system structure according to claim 1 is characterized in that: Two abutment grooves (8) are provided on the bottom surface of the middle partition plate (41), the positions of the two abutment grooves (8) correspond to the two abutment portions (7), and the shapes of the abutment grooves (8) match the abutment portions (7).

5. The industrial furnace air cooling system structure according to claim 1 is characterized in that: The two third connecting plates (13) are symmetrical relative to the furnace (2), so that the first connecting plate (11), the second connecting plate (12) and the vertical plate (21) are all symmetrical relative to the furnace (2).

6. The industrial furnace air cooling system structure according to claim 1 is characterized by: The side of the second chamber (4) is a U-shaped structure. Two air inlet pipes (5) are provided at the bottom of the second chamber (4), and two air outlet pipes are provided at the top. Both are symmetrical relative to the furnace (2). When air is taken in from the two air inlet pipes (5), the gas flows along the U-shaped channel to both sides to the two exhaust pipes (6).

7. The industrial furnace air cooling system structure according to claim 1 is characterized by: A plurality of heat dissipation ribs are welded on the top plate and the bottom plate of the furnace (2) to increase the heat dissipation area of ​​the furnace (2).

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