Rotary kiln surface heat dissipation recovery device

Abstract

The utility model relates to a rotary kiln surface heat dissipation recovery device, and belongs to the technical field of rotary kiln machining. The device comprises a first heat collection mechanism, a second heat collection mechanism and a heat exchange mechanism, the first heat collection mechanism comprises a first support and a first heat collection piece, the first end of the first support is arranged on the ground, the first heat collection piece is arranged at the second end of the first support, and the first heat collection piece is erected above the rotary kiln; the second heat collection mechanism comprises a second support and a second heat collection piece, the first end of the second support is arranged on the ground, and the second heat collection piece is arranged at the second end of the second support and erected above the rotary kiln; the first heat collecting mechanism and the second heat collecting mechanism are arranged on the two sides of the rotary kiln in the axis direction respectively, the first heat collecting piece and the second heat collecting piece are arranged above the rotary kiln in a staggered and inserted mode, and the first heat collecting piece and the second heat collecting piece are both connected with the heat exchange mechanism. The heat conduction structure has the effect of improving the installation convenience of the heat conduction structure of the rotary kiln.

Description

Technical Field

[0001] This application relates to the field of rotary kiln processing technology, and in particular to a rotary kiln surface heat dissipation recovery device. Background Technology

[0002] Rotary kilns generally refer to rotary bed kilns, which belong to the category of building materials equipment. According to the different materials they process, they can be divided into cement kilns, metallurgical and chemical kilns, and lime kilns.

[0003] During calcination processes, such as calcining lime, the high temperature inside a rotary kiln dissipates to the outside, causing the surrounding temperature to be high. Currently, heat-conducting structures are generally installed on rotary kilns to recover the heat dissipated during processing.

[0004] However, the heat-conducting structure in the relevant technology is installed as a whole above the rotary kiln, and it needs to be disassembled and assembled by means of hoisting, which is inconvenient.

[0005] Regarding the aforementioned technologies, the inventors believe that there is a drawback in that the heat-conducting structure of a rotary kiln is inconvenient to install. Utility Model Content

[0006] To improve the ease of installation of the heat-conducting structure of a rotary kiln, this application provides a rotary kiln surface heat dissipation recovery device.

[0007] The rotary kiln surface heat dissipation and recovery device provided in this application adopts the following technical solution:

[0008] A rotary kiln surface heat dissipation recovery device includes: a first heat collection mechanism, comprising a first support and a first heat collection element, wherein a first end of the first support is placed on the ground, the first heat collection element is disposed at a second end of the first support, and the first heat collection element is mounted above the rotary kiln; a second heat collection mechanism, comprising a second support and a second heat collection element, wherein a first end of the second support is placed on the ground, the second heat collection element is disposed at a second end of the second support, and the second heat collection element is mounted above the rotary kiln; the first heat collection mechanism and the second heat collection mechanism are respectively disposed on both sides of the axial direction of the rotary kiln, and the first heat collection element and the second heat collection element are alternately interspersed above the rotary kiln; and a heat exchange mechanism, wherein both the first heat collection element and the second heat collection element are connected to the heat exchange mechanism.

[0009] By adopting the above technical solution, the first support bracket erects the first heat collector above the rotary kiln, and the second support bracket erects the second heat collector above the rotary kiln. The first and second heat collectors are interlaced above the rotary kiln, forming a cover over the rotary kiln, thereby fully recovering the heat dissipation from the surface of the rotary kiln and transferring the heat to the heat exchange mechanism to realize the utilization of heat. The first and second heat collector mechanisms are relatively independent. By cooperating and installing them above the rotary kiln, they can be easily moved horizontally to the side of the rotary kiln for installation without the need for mechanical hoisting, reducing assembly difficulty and enabling convenient installation.

[0010] Optionally, the first bracket is provided with a first connector, and the second bracket is provided with a second connector, wherein the first connector and the second connector are detachably connected.

[0011] By adopting the above technical solution, after the first bracket and the second bracket are properly engaged, relative positioning is achieved through the first connector and the second connector, thereby improving stability.

[0012] Optionally, the first bracket is provided with a plurality of first connectors, and the second bracket is provided with a plurality of second connectors. The first connectors and the second connectors are arranged in a triangular pattern, and the first connectors and the second connectors are connected in a one-to-one correspondence.

[0013] By adopting the above technical solution, the relative stability of the first support and the second support can be improved through the triangular connection structure, and the collision between the first heat collector and the second heat collector caused by the relative movement of the first support and the second support can be mitigated, thus reducing the impact on the reliability of the first heat collector and the second heat collector.

[0014] Optionally, both the first end of the first bracket and the first end of the second bracket are provided with casters.

[0015] By adopting the above technical solution, it is easy to move the first bracket and the second bracket separately, thus improving the convenience of installation.

[0016] Optionally, the second end of the first bracket is provided with a first slide rail, the first heat collector is slidably connected to the first slide rail, the second end of the second bracket is provided with a second slide rail, the second heat collector is slidably connected to the second slide rail, and both the first slide rail and the second slide rail are set with a preset arc.

[0017] By adopting the above technical solution, it is helpful to adjust the relative positions of the first heat collector and the second heat collector in the circumferential direction of the rotary kiln, thus making it easier to match with rotary kilns of different diameters.

[0018] Optionally, the second end of the first bracket is provided with a first cover plate, the first slide rail is provided on the lower side of the first cover plate, and the first cover plate covers the upper part of the first heat collector. The second end of the second bracket is provided with a second cover plate, the second slide rail is provided on the lower side of the second cover plate, and the second cover plate covers the upper part of the second heat collector.

[0019] By adopting the above technical solution, on the one hand, the first cover plate and the second cover plate can provide support for the first slide rail and the second slide rail; on the other hand, the first cover plate and the second cover plate can reduce the loss of heat dissipation from the surface of the rotary kiln and improve the heat recovery effect of the first heat collector and the second heat collector.

[0020] Optionally, both the first heat collector and the second heat collector are continuous S-shaped structures.

[0021] By adopting the above technical solution, the surface area of ​​the first heat collector and the second heat collector is increased, and the first heat collector and the second heat collector can be interlaced.

[0022] Optionally, the outer walls of the first heat collector and the second heat collector are provided with heat insulation components.

[0023] By adopting the above technical solution, on the one hand, the heat collection efficiency is improved by using the insulation component, and on the other hand, the collision between the first heat collector and the second heat collector is reduced by using the insulation component, thereby improving reliability.

[0024] Optionally, the heat exchange mechanism is connected to a first output pipe and a first input pipe, which are respectively connected to the input end and the output end of the first heat collector. The heat exchange mechanism is also connected to a second output pipe and a second input pipe, which are respectively connected to the input end and the output end of the second heat collector.

[0025] By adopting the above technical solution, both the first and second heat collectors can exchange heat with the heat exchange mechanism, thereby collecting the heat dissipation from the surface of the rotary kiln into the heat exchange mechanism.

[0026] Optionally, the output end of the heat exchange mechanism is connected to the actuator.

[0027] By adopting the above technical solution, the heat in the heat exchange mechanism can be used for the actuator, thus realizing the effective utilization of heat dissipation from the surface of the rotary kiln.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. The first support bracket sets the first heat collector above the rotary kiln, and the second support bracket sets the second heat collector above the rotary kiln. The first and second heat collectors are staggered above the rotary kiln, forming a cover over the kiln, which can fully recover the heat dissipation from the surface of the rotary kiln and transfer the heat to the heat exchange mechanism to realize the utilization of heat. The first and second heat collector mechanisms are relatively independent. By cooperating and installing them above the rotary kiln, they can be easily moved horizontally to the side of the rotary kiln for installation without mechanical hoisting, reducing assembly difficulty and enabling convenient installation.

[0030] 2. The triangular connection structure can improve the relative stability of the first and second supports, and mitigate the impact on the reliability of the first and second heat collectors caused by the relative movement of the first and second supports, which could lead to collisions between them.

[0031] 3. On the one hand, the first cover plate and the second cover plate can provide support for the first slide rail and the second slide rail. On the other hand, the first cover plate and the second cover plate can reduce the loss of heat dissipation from the surface of the rotary kiln and improve the heat recovery effect of the first heat collector and the second heat collector. Attached Figure Description

[0032] Figure 1 This is an overall schematic diagram of the rotary kiln surface heat dissipation and recovery device according to an embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the cooperation between the first heat collector and the second heat collector according to an embodiment of this application.

[0034] Figure 3 This is a schematic diagram of the first bracket and the second bracket cooperating according to an embodiment of this application.

[0035] Figure 4 This is a front view of the first bracket and the second bracket in cooperation according to an embodiment of this application.

[0036] Figure 5 This is a right-side view of the second bracket according to an embodiment of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Rotary kiln;

[0039] 1. First heat collection mechanism; 11. First support; 12. First heat collection element; 13. First connector; 14. First slide rail; 15. First cover plate;

[0040] 2. Second heat collection mechanism; 21. Second bracket; 22. Second heat collection element; 23. Second connector; 24. Second slide rail; 25. Second cover plate;

[0041] 3. Heat exchange mechanism; 31. First output pipe; 32. First input pipe; 33. Second output pipe; 34. Second input pipe;

[0042] 4. Casters; 5. Actuating mechanism. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be further described in detail below. In this embodiment, unless otherwise specified, "connection," "linked," and "fixed" are interpreted broadly, including fixed connections, detachable connections, connections forming an integral structure, mechanical connections, electrical connections, direct connections, indirect connections via intermediaries, internal connections, and interactions between two components, etc., and can be understood according to the specific circumstances. Unless otherwise stated, directional terms such as "inner" and "outer" used in this application refer to the outline of the corresponding component itself.

[0044] like Figure 1 As shown in the embodiment of this application, a rotary kiln surface heat dissipation recovery device (hereinafter referred to as "device") is disclosed. The device includes a first heat collection mechanism 1, a second heat collection mechanism 2 and a heat exchange mechanism 3, which are used to collect the heat emitted from the surface of the rotary kiln 100, reduce heat loss, and reduce costs by improving the utilization rate of heat dissipation from the surface of the rotary kiln 100.

[0045] The first heat collection mechanism 1 includes a first support 11 and a first heat collection element 12. The first end of the first support 11 is placed on the ground, and the first heat collection element 12 is disposed at the second end of the first support 11, so that the first heat collection element 12 can be mounted above the rotary kiln 100. The second heat collection mechanism 2 includes a second support 21 and a second heat collection element 22. The first end of the second support 21 is placed on the ground, and the second heat collection element 22 is disposed at the second end of the second support 21, so that the second heat collection element 22 can be mounted above the rotary kiln 100.

[0046] like Figure 1As shown, the first heat collection mechanism 1 and the second heat collection mechanism 2 are respectively located on both sides of the rotary kiln 100 along the axial direction. They are assembled and connected by being close to each other, so that the first heat collection element 12 and the second heat collection element 22 are staggered and interlaced above the rotary kiln 100, forming a partial cover over the rotary kiln 100, which facilitates the collection of heat lost from the surface of the rotary kiln 100. Since the first heat collection mechanism 1 and the second heat collection mechanism 2 are relatively independent and are installed above the rotary kiln 100 by assembly and cooperation, it is easy to move the first heat collection mechanism 1 and the second heat collection mechanism 2 horizontally to the side of the rotary kiln 100 for installation, without the need for mechanical hoisting to the top of the rotary kiln 100, reducing assembly difficulty and facilitating installation. The first end of the first bracket 11 and the first end of the second bracket 21 are each provided with several universal wheels 4 to facilitate the movement of the first bracket 11 and the second bracket 21 respectively, improving the convenience of installation.

[0047] like Figure 1 and Figure 2 As shown, in this embodiment, both the first heat collector 12 and the second heat collector 22 are continuous S-shaped structures formed by multiple heat collector tubes connected in series, allowing the heat-conducting medium to flow within the heat collector tubes and achieving heat transfer. The continuous S-shaped structure increases the surface area of ​​both the first heat collector 12 and the second heat collector 22 while facilitating their interlocking, thus achieving overlap at the upper ends of the first heat collector 1 and the second heat collector 2, improving stability. Both the first heat collector 12 and the second heat collector 22 have a certain curvature to match the outer surface of the rotary kiln 100, improving the heat collection effect.

[0048] The outer walls of the first heat collector 12 and the second heat collector 22 are provided with insulation (not shown in the figure). The insulation can be flexible, such as insulation cotton or foam board. On the one hand, the insulation reduces heat loss of the first heat collector 12 and the second heat collector 22, improving heat collection efficiency; on the other hand, the insulation reduces the risk of damage caused by collisions when the first heat collector 12 and the second heat collector 22 intersect, acting as a buffer and improving reliability. The insulation can cover the outer circumference of the heat collector tube, or it can be clamped only at the contact point when the first heat collector 12 and the second heat collector 22 intersect.

[0049] like Figure 1 and Figure 2 As shown, both the first heat collector 12 and the second heat collector 22 are connected to the heat exchange mechanism 3, thereby dissipating heat from the surface of the rotary kiln 100 and transferring it to the heat exchange mechanism 3 through the first heat collector 12 and the second heat collector 22, thus realizing the utilization of heat. The heat exchange mechanism 3 can be selected from suitable heat exchangers as needed, or it can be other structures that can realize heat exchange or transfer.

[0050] like Figure 3 and Figure 4As shown, the first bracket 11 is provided with a first connecting member 13, and the second bracket 21 is provided with a second connecting member 23. The first connecting member 13 and the second connecting member 23 are detachably connected. After the first bracket 11 and the second bracket 21 move to a preset position, they are relatively positioned by the first connecting member 13 and the second connecting member 23, improving the overall stability of the device. One of the first connecting member 13 and the second connecting member 23 can be a slot, and the other can be a retractable rod. The relative positioning is achieved by inserting the rod into the slot and fixing it. The fixing method between the slot and the rod is not limited and can be snap-fit, screwed, or other connection methods. In this embodiment, the slot is provided with threads, and the telescopic end of the rod is rotatably connected to a threaded part. The rod is fixed by screwing the threaded part into the slot.

[0051] like Figures 3-5 As shown, the first support 11 is provided with several first connecting members 13, and the second support 21 is provided with several second connecting members 23. Both the first connecting members 13 and the second connecting members 23 are arranged in a triangular pattern, and each first connecting member 13 is connected to the second connecting member 23 in a one-to-one correspondence. This triangular connection structure improves the relative stability of the first support 11 and the second support 21, mitigating the risk of collision damage to the first heat collector 12 and the second heat collector 22 caused by relative movement or torsion between them, thus ensuring their reliability.

[0052] The second end of the first support 11 is provided with a first slide rail 14, and the first heat collector 12 is slidably connected to the first slide rail 14. The second end of the second support 21 is provided with a second slide rail 24, and the second heat collector 22 is slidably connected to the second slide rail 24. Both the first slide rail 14 and the second slide rail 24 are set with a preset arc, so that the relative positions of the first heat collector 12 and the second heat collector 22 in the circumferential direction of the rotary kiln 100 can be adjusted, making it easier for the device to be matched with rotary kilns 100 of different diameters. When the diameter of the rotary kiln 100 is large, the overlapping area between the first heat collector 12 and the second heat collector 22 can be reduced by sliding, allowing the first heat collector 12 and the second heat collector 22 to cover a larger area around the outer periphery of the rotary kiln 100, thus improving heat recovery efficiency. When the diameter of the rotary kiln 100 is small, the overlapping area between the first heat collector 12 and the second heat collector 22 can be increased by sliding, allowing the heat collection area to be concentrated above the area of ​​the rotary kiln 100 where more heat is dissipated. This avoids the first heat collector 12 and the second heat collector 22 being too widely distributed on both sides of the rotary kiln 100 due to a small overlapping area, which would affect the heat recovery efficiency. Connecting blocks can be provided on the first heat collector 12 and the second heat collector 22 respectively, enabling sliding connection with the first slide rail 14 and the second slide rail 24.

[0053] like Figure 1 , Figure 3 and Figure 4As shown, the second end of the first support 11 is provided with a first cover plate 15, and the first slide rail 14 is located on the lower side of the first cover plate 15. The first cover plate 15 covers the top of the first heat collector 12. The second end of the second support 21 is provided with a second cover plate 25, and the second slide rail 24 is located on the lower side of the second cover plate 25. The second cover plate 25 covers the top of the second heat collector 22. On the one hand, the first cover plate 15 and the second cover plate 25 can provide support for the first slide rail 14 and the second slide rail 24 respectively. On the other hand, the covering of the first cover plate 15 and the second cover plate 25 can prevent further heat loss, reduce heat loss from the surface of the rotary kiln 100, and improve the heat recovery effect of the first heat collector 12 and the second heat collector 22. The first cover plate 15 and the second cover plate 25 have a certain curvature so as to set the first slide rail 14 and the second slide rail 24, and to easily retain the heat lost by the rotary kiln 100 between the outer surface of the rotary kiln 100 and the first cover plate 15 and the second cover plate 25, so that the first heat collector 12 and the second heat collector 22 are fully heated.

[0054] like Figure 1 and Figure 2 As shown, the heat exchange mechanism 3 is connected to a first output pipe 31 and a first input pipe 32, which are respectively connected to the input and output ends of the first heat collector 12. The heat exchange mechanism 3 is also connected to a second output pipe 33 and a second input pipe 34, which are respectively connected to the input and output ends of the second heat collector 22. The output end of the heat exchange mechanism 3 is connected to the actuator 5. Both the first heat collector 12 and the second heat collector 22 exchange heat with the heat exchange mechanism 3, thereby collecting the heat dissipation from the surface of the rotary kiln 100 in the heat exchange mechanism 3, and further using the heat in the heat exchange mechanism 3 for the actuator 5, thus achieving effective utilization of the heat dissipation from the surface of the rotary kiln 100. Multiple heat exchange mechanisms 3 can be provided, and these multiple heat exchange mechanisms 3 are connected by pipes to achieve multi-stage heat exchange and improve heat utilization efficiency. The actuator 5 can be a boiler structure, a drying structure, or other structure that requires heat, thereby realizing the utilization of the heat dissipated by the rotary kiln 100. A third output pipe and a third input pipe are provided between the heat exchange mechanism 3 and the actuator 5, thereby realizing the circulation of the heat transfer medium between the heat exchange mechanism 3 and the actuator 5. Both ends of the first heat collector 12 and the second heat collector 22 can be provided with connection structures, such as valves or connecting sleeves, so as to detachably connect the first output pipe 31, the first input pipe 32, the second output pipe 33, and the second input pipe 34.

[0055] It is understood that the device may include a drive mechanism for driving the movement of various parts of the mechanism and the heat transfer medium; the device’s location on the rotary kiln 100, the size and shape of each part of the device, and other parameters can be set as needed to suit the actual situation.

[0056] The implementation principle of the rotary kiln surface heat dissipation recovery device in this application embodiment is as follows: push the first support 11 and the second support 21 so that the first support 11 and the second support 21 are respectively located on both sides of the axis of the rotary kiln 100; adjust the position of the first heat collector 12 and the second heat collector 22 in the first slide rail 14 and the second slide rail 24 so that the first heat collector 12 and the second heat collector 22 are interleaved; the first output pipe 31, the first input pipe 32, the second output pipe 33 and the second input pipe 34 are used to connect the first heat collector 1 and the second heat collector 2 with the heat exchange mechanism 3, so that the heat transfer medium can transfer the heat dissipation of the rotary kiln 100 surface to the heat exchange mechanism 3, and further use the heat for the actuator 5, so as to achieve effective utilization of heat.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotary kiln surface heat dissipation and recovery device, characterized in that, include: The first heat collection mechanism (1) includes a first support (11) and a first heat collection element (12). The first end of the first support (11) is placed on the ground, and the first heat collection element (12) is located at the second end of the first support (11). The first heat collection element (12) is mounted above the rotary kiln (100). The second heat collection mechanism (2) includes a second support (21) and a second heat collection element (22). The first end of the second support (21) is placed on the ground, and the second heat collection element (22) is located at the second end of the second support (21). The second heat collection element (22) is mounted above the rotary kiln (100). The first heat collection mechanism (1) and the second heat collection mechanism (2) are respectively located on both sides of the axis of the rotary kiln (100), and the first heat collection element (12) and the second heat collection element (22) are interspersed above the rotary kiln (100); The heat exchange mechanism (3) is connected to both the first heat collector (12) and the second heat collector (22).

2. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that: The first bracket (11) is provided with a first connector (13), and the second bracket (21) is provided with a second connector (23). The first connector (13) and the second connector (23) are detachably connected.

3. The rotary kiln surface heat dissipation and recovery device according to claim 2, characterized in that: The first bracket (11) is provided with a plurality of first connectors (13), and the second bracket (21) is provided with a plurality of second connectors (23). The first connectors (13) and the second connectors (23) are both triangularly distributed, and the first connectors (13) and the second connectors (23) are connected one-to-one.

4. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that: Both the first end of the first bracket (11) and the first end of the second bracket (21) are provided with casters (4).

5. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that: The second end of the first bracket (11) is provided with a first slide rail (14), the first heat collector (12) is slidably connected to the first slide rail (14), the second end of the second bracket (21) is provided with a second slide rail (24), the second heat collector (22) is slidably connected to the second slide rail (24), and the first slide rail (14) and the second slide rail (24) are both set with a preset arc.

6. The rotary kiln surface heat dissipation and recovery device according to claim 5, characterized in that: The second end of the first bracket (11) is provided with a first cover plate (15), the first slide rail (14) is located on the lower side of the first cover plate (15), the first cover plate (15) covers the top of the first heat collector (12), the second end of the second bracket (21) is provided with a second cover plate (25), the second slide rail (24) is located on the lower side of the second cover plate (25), the second cover plate (25) covers the top of the second heat collector (22).

7. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that: Both the first heat collector (12) and the second heat collector (22) are continuous S-shaped structures.

8. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that: The outer walls of the first heat collector (12) and the second heat collector (22) are provided with heat insulation components.

9. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that: The heat exchange mechanism (3) is connected to a first output pipe (31) and a first input pipe (32). The first output pipe (31) and the first input pipe (32) are respectively connected to the input end and the output end of the first heat collector (12). The heat exchange mechanism (3) is also connected to a second output pipe (33) and a second input pipe (34). The second output pipe (33) and the second input pipe (34) are respectively connected to the input end and the output end of the second heat collector (22).

10. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that: The output end of the heat exchange mechanism (3) is connected to the actuator (5).

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