Rotary kiln with waste heat recovery function

Abstract

The utility model relates to the field of waste heat recovery devices, and discloses a rotary kiln with a waste heat recovery function, which comprises two bottom plates and a rotary kiln body, lifting mechanisms are arranged at the tops of the two bottom plates, the lifting mechanisms are fixedly connected with a vertical plate, four universal wheels are mounted at the bottoms of the two bottom plates, and the rotary kiln body is fixedly connected with the vertical plate. Four guide columns are arranged on the vertical plate and used for being matched with the connecting frames, fixing blocks are arranged on the tops and the bottoms of the connecting frames, and the two connecting frames are used for installing the waste heat recovery mechanism and the rotary kiln body in the connecting frames through the fixing blocks arranged on the tops and the bottoms in cooperation with bolts and nuts; the rotary kiln body is located in the waste heat recovery mechanism. Through the design of the vertical plates and the connecting frames, when the waste heat recovery mechanism needs to be maintained, the sleeve blocks can be rotated towards the connecting frames around the external threads on the connecting columns, then nuts and bolts are loosened, a handle is pulled, the connecting frames on the left side and the right side can be easily disassembled, and maintenance operation is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat recovery device field, concretely is a rotary kiln with waste heat recovery function. BACKGROUND

[0002] In industrial production, rotary kiln as an important thermal equipment, is widely used in the calcination and calcination process of various materials. Its main function is to ensure that the fuel is fully combusted, and the heat generated by combustion is efficiently transferred to the material, so that the material absorbs heat and undergoes a series of physical and chemical reactions, and finally forms finished clinker. However, rotary kiln often produces a large amount of waste heat during operation, which cannot be effectively recovered and utilized, resulting in energy waste and environmental pollution problems.

[0003] In order to solve this problem, people have developed rotary kiln with waste heat recovery function to improve energy utilization efficiency and reduce environmental pollution. But the existing waste heat recovery device is mostly directly clamped on the outer wall of rotary kiln cylinder, because the device itself is heavy, long time operation may exert additional pressure on rotary kiln cylinder, gradually leading to cylinder damage. In addition, when large-scale maintenance or replacement of waste heat recovery mechanism is needed, the whole recovery device must be removed from the rotary kiln body. However, the rotary kiln body is provided with supporting feet, and the separation process of waste heat recovery mechanism is relatively complex, especially when the rotary kiln body needs to be repaired, the separation process is more troublesome. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the defects of the prior art, the utility model provides a rotary kiln with waste heat recovery function, which has the advantages of convenient maintenance and good adaptability, and solves the problems of inconvenient maintenance and poor adaptability.

[0006] (II) Technical scheme

[0007] In order to realize the above-mentioned convenient maintenance and good adaptability purposes, the utility model provides the following technical scheme:

[0008] The utility model provides a rotary kiln with waste heat recovery function, including two bottom plate and rotary kiln body, two bottom plate top all is equipped with lifting mechanism, lifting mechanism is fixedly connected with vertical board, the bottom of two bottom plate all is installed four universal wheel, be equipped with four guide pillar for connecting frame cooperation on vertical board, the top and bottom of connecting frame all is equipped with fixed block, two connecting frame pass through the fixed block cooperation bolt and nut that sets up at top and bottom and install waste heat recovery mechanism and rotary kiln body in the inside of connecting frame, rotary kiln body is located in the inside of waste heat recovery mechanism, the back of two connecting frame all is installed with connecting column, the connecting column passes through both sides vertical board and is connected with handle, the left end of connecting column is equipped with external thread, and the connecting column is equipped with sleeve block.

[0009] As a preferred technical scheme of the utility model, four guide plates are arranged on the outer ring of each of the two connecting frames for cooperation with the guide columns on the two vertical plates, and the four guide plates are symmetrically arranged on the two sides of the connecting frame.

[0010] As a preferred technical scheme of the utility model, the waste heat recovery mechanism is divided into two parts, and each of the two connecting frames has one half on the left and right sides.

[0011] As a preferred technical scheme of the utility model, four guide columns are arranged on the opposite surfaces of the two vertical plates, and the four guide columns are symmetrically arranged on the two vertical plates.

[0012] As a preferred technical scheme of the utility model, the lifting mechanism comprises a shell, a bidirectional bolt, two adjusting blocks, two connecting rods, and two moving blocks.

[0013] As a preferred technical scheme of the utility model, the top of the shell is provided with a through hole matched with the small-diameter plate at the bottom of the vertical plate, the two adjusting blocks are respectively arranged on the two sides of the bidirectional bolt, the moving block is provided with a sliding block at the matching position with the shell, the shell is provided with a sliding groove matched with the sliding block at the matching position with the moving block, and the top of the moving block is tightly attached to the bottom of the small-diameter plate at the bottom of the vertical plate.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the rotary kiln with waste heat recovery function has the following beneficial effects:

[0016] The rotary kiln with waste heat recovery function, through the design of the lifting mechanism, the nut and the bolt, transmits the movement of the adjusting block to the moving block through the connecting rod, thereby lifting the vertical plate to realize the accurate adjustment of the height of the connecting frame. In this way, it can ensure that the waste heat recovery mechanism closely fits the rotary kiln cylinder, and fully utilizes the heat emitted from the surface of the cylinder for recovery. In addition, through the cooperation of the bolt and the nut, the support adjustment is carried out according to the different diameters of the rotary kiln cylinder, which facilitates the close fitting of the waste heat recovery mechanism and the rotary kiln cylinder, and optimizes the heat recovery efficiency. Through the design of the vertical plate and the connecting frame, when the waste heat recovery mechanism needs to be maintained, the sleeve block can be rotated around the external thread on the connecting column in the direction of the connecting frame, then the nut and the bolt are loosened, and the handle is pulled, so that the connecting frames on the left and right sides can be easily disassembled, facilitating maintenance operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a connection schematic diagram of the connecting frame and the vertical plate of the utility model structure;

[0019] Figure 3 It is a sectional view of the lifting mechanism of the utility model structure;

[0020] Figure 4 It is a connection sectional view of the inside of the connecting frame of the utility model structure.

[0021] In the drawing: 1, rotary kiln body; 2, waste heat recovery mechanism; 201, fin; 3, connecting frame; 301, fixed block; 302, guide plate; 4, bolt; 5, guide column; 6, vertical plate; 7, connecting column; 8, handle; 9, lifting mechanism; 901, shell; 902, bidirectional bolt; 903, adjusting block; 904, connecting rod; 905, moving block; 10, bottom plate; 11, universal wheel; 12, sleeve block; 13, nut. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] In the description of the utility model, it needs to be understood that the terms "mounting", "connection", "connection" should be understood broadly unless otherwise explicitly specified and limited, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Please refer to Figures 1-4 ,

[0026] A rotary kiln with waste heat recovery function, including two bottom plate 10 and rotary kiln body 1, two bottom plate 10 top is equipped with lifting mechanism 9, lifting mechanism 9 is fixedly connected with the vertical plate 6, the bottom of two bottom plate 10 is installed with four universal wheels 11, four guide columns 5 are arranged on the vertical plate 6 for connecting frame 3 cooperation, the top and bottom of connecting frame are equipped with fixed block 301, two connecting frames 3 are installed in the inside of connecting frame 3 through the fixed block 301 of top and bottom cooperation bolt 4 and nut 13 with waste heat recovery mechanism 2 and rotary kiln body 1, rotary kiln body 1 is located in the inside of waste heat recovery mechanism 2, the back of two connecting frames 3 is installed with connecting column 7, connecting column 7 penetrates two vertical plates 6 and handle 8 cooperation, the left end of connecting column 7 is equipped with external thread, and the connecting column 7 is equipped with sleeve block 12.

[0027] In the example, four guide plates 302 are arranged on the outer ring of two connecting frames 3 for cooperation with the guide columns 5 on the two vertical plates 6, the four guide plates 302 are symmetrically arranged on the two sides of the connecting frame 3, the connecting column 7 is fixedly installed at the center position of the back of the connecting frame 3, and the two fixed blocks 301 are installed at the middle positions of the top and bottom of the connecting frame 3.

[0028] It should be noted that this symmetrical design can balance the guiding force, prevent the vertical plate 6 from deviating when moving or under stress, improve the fit and stability between the waste heat recovery mechanism 2 and the rotary kiln cylinder, and further enhance the rigidity of the connecting frame 3 through the fixing block 301, so as to ensure that the connecting frame 3 will not deform or loosen due to external force during installation and maintenance, and help stabilize the relative position relationship with the rotary kiln.

[0029] In this example, the waste heat recovery mechanism 2 is divided into two, and each half of the left and right sides of the connecting frame 3, and the waste heat recovery mechanism 2 is provided with fins 201, and the front end top of each of the two waste heat recovery mechanisms 2 is provided with a water inlet, and the front end bottom of each of the two waste heat recovery mechanisms 2 is provided with a water outlet.

[0030] It should be noted that the separate design of the waste heat recovery mechanism 2 allows the two waste heat recovery mechanisms 2 to operate independently, increasing the flexibility of the device, and the fins 201 can accelerate the heat transfer effect between the waste heat and the cooling water flowing through, thereby more effectively recycling the heat generated by the rotary kiln.

[0031] In this example, four guide columns 5 are arranged on opposite sides of the two vertical plates 6, and the four guide columns 5 are symmetrically installed with respect to the center line of the vertical plate 6, and the bottom of the vertical plate 6 is provided with a small diameter plate matched with the lifting mechanism 9, and the vertical plate 6 is provided with a through hole for connecting the column 7 to pass through the vertical plate 6 and connect with the handle 8, and the sleeve block 12 is located between the vertical plate 6 and the connecting frame 3.

[0032] It should be noted that the symmetrical design ensures that the stress of the guide column 5 is uniform, which can effectively improve the stability of the vertical plate 6, and the through hole design makes the operation of the vertical plate 6 more flexible, while not affecting its structural strength and stability.

[0033] In this example, the lifting mechanism 9 is composed of a shell 901, a bidirectional bolt 902, two adjusting blocks 903, two connecting rods 904 and two moving blocks 905, the bottom of the shell 901 is fixedly connected with the top of the bottom plate 10, the bidirectional bolt 902 is installed at the bottom of the shell 901, the adjusting block 903 is installed on the bidirectional bolt 902, one end of the connecting rod 904 is rotatably connected with the adjusting block 903, the other end is rotatably connected with the moving block 905, and the moving block 905 is installed in the shell 901.

[0034] It should be noted that the design of the bidirectional bolt 902 facilitates the synchronous adjustment of the adjusting block 903, making the operation of the lifting mechanism 9 more accurate and stable, and the rotating design of the connecting rod 904, the adjusting block 903 and the moving block 905 ensures that the movement of the adjusting block 903 can be smoothly transmitted to the moving block 905 through the connecting rod 904, while avoiding stress concentration caused by rigid connection, and improving the reliability of the structure.

[0035] In the example, the top of the shell 901 is provided with a through hole matched with the small-diameter plate at the bottom of the vertical plate 6, two adjusting blocks 903 are respectively installed on the two sides of the bidirectional bolt 902, the moving block 905 is provided with a sliding block matched with the shell 901, and the shell 901 is provided with a sliding groove matched with the moving block 905, and the top of the moving block 905 is tightly attached to the bottom of the small-diameter plate at the bottom of the vertical plate 6.

[0036] It should be noted that the through hole enables the small-diameter plate at the bottom of the vertical plate 6 to maintain accurate contact with the moving block 905, avoiding deviation and improving the stability of the vertical plate 6, and the sliding groove provides a guiding effect, ensuring that the moving block 905 maintains linear motion during lifting, avoiding left-right shaking or deviation.

[0037] In summary: when using the device, first, the left and right vertical plates 6 and the connecting frame 3 and the waste heat recovery mechanism 2 are moved to the two sides of the rotary kiln body 1 through the bottom plate 10. Then the left and right bottom plates 10 are simultaneously moved close to the rotary kiln body 1, the vertical plate 6 is adjusted to the appropriate height according to actual needs through the lifting mechanism 9, and the bottom plate 10 is fixed and stable. Then, the connecting frame 3 drives the waste heat recovery mechanism 2 to move, so that it is attached to the outer wall of the rotary kiln cylinder to efficiently recover waste heat. When the waste heat recovery mechanism 2 needs to be repaired, the sleeve block 12 is rotated in the outer thread direction of the connecting column 7 to the position of the connecting frame 3, and the bolts 4 and the nuts 13 are loosened, then the handle 8 is pulled, and the connecting frame 3 is disassembled through the connecting column 7. If the rotary kiln body 1 needs to be repaired, the bottom plate 10 is loosened again to complete the separation.

[0038] Beneficial effects:

[0039] The rotary kiln with waste heat recovery function, through the design of the lifting mechanism, the nut and the bolt, transmits the movement of the adjusting block to the moving block through the connecting rod, thereby lifting the vertical plate, and accurately adjusts the height of the connecting frame. This can ensure that the waste heat recovery mechanism is closely attached to the rotary kiln cylinder, and fully utilizes the heat emitted from the surface of the cylinder for recovery. In addition, through the cooperation of the bolt and the nut, the support adjustment is carried out according to the different diameters of the rotary kiln cylinder, which facilitates the close attachment of the waste heat recovery mechanism to the rotary kiln cylinder, and optimizes the heat recovery efficiency. Through the design of the vertical plate and the connecting frame, when the waste heat recovery mechanism needs to be repaired, the sleeve block can be rotated around the outer thread on the connecting column in the direction of the connecting frame, then the nuts and the bolts are loosened, and the handle is pulled, so that the left and right connecting frames can be easily disassembled, facilitating maintenance operation.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln with waste heat recovery function, comprising two bottom plates and a rotary kiln body, characterized in that: Two top of the bottom plate are equipped with lifting mechanism, the lifting mechanism is fixedly connected with vertical plate, the bottom of two bottom plate is installed with four universal wheels, four guide columns are equipped on the vertical plate and used for connecting frame cooperation, the top and bottom of the connecting frame are equipped with fixed blocks, two connecting frames are installed inside the connecting frame through the fixed blocks on the top and bottom, cooperate with bolts and nuts, the waste heat recovery mechanism and the rotary kiln body, the rotary kiln body is located inside the waste heat recovery mechanism, the back of two connecting frames is installed with connecting column, the connecting column penetrates the vertical plate on both sides and cooperates with handle, the left end of the connecting column is equipped with external thread, and the connecting column is equipped with sleeve block.

2. The rotary kiln with waste heat recovery function according to claim 1, characterized in that: Four guide plates are equipped on the outer ring of two connecting frames and used for the cooperation of guide columns on the vertical plates on both sides, four guide plates are symmetrically installed on both sides of the connecting frame, the connecting column is fixedly installed at the center position of the back of the connecting frame, and two fixed blocks are installed at the center position of the top and bottom of the connecting frame.

3. The rotary kiln with waste heat recovery function according to claim 1, characterized in that: The waste heat recovery mechanism is divided into two, and the left and right sides of the connecting frame are each half, the waste heat recovery mechanism is equipped with fins inside, the front end top of two waste heat recovery mechanisms is equipped with water inlet, and the front end bottom of two waste heat recovery mechanisms is equipped with water outlet.

4. The rotary kiln with waste heat recovery function according to claim 1, characterized in that: Four guide columns are equipped on the opposite sides of two vertical plates, and four guide columns are symmetrically installed with the center line of the vertical plate as the reference, the bottom of the vertical plate is provided with a small diameter plate matched with the lifting mechanism, the vertical plate is provided with a through hole for connecting the column to penetrate the vertical plate and connect with the handle, and the sleeve block is located between the vertical plate and the connecting frame.

5. The rotary kiln with waste heat recovery function according to claim 1, characterized in that: The lifting mechanism is composed of a shell, a bidirectional bolt, two adjusting blocks, two connecting rods and two moving blocks, the bottom of the shell is fixedly connected with the top of the bottom plate, the bidirectional bolt is installed at the bottom of the shell, the adjusting block is installed on the bidirectional bolt, one end of the connecting rod is rotationally connected with the adjusting block, the other end is rotationally connected with the moving block, and the moving block is installed in the shell.

6. The rotary kiln with waste heat recovery function according to claim 5, characterized in that: The top of the shell is equipped with a through hole matched with the small diameter plate at the bottom of the vertical plate, two adjusting blocks are installed on both sides of the bidirectional bolt respectively, the moving block is equipped with a sliding block matched with the shell, and the shell is equipped with a sliding groove matched with the moving block, the top of the moving block is tightly attached to the bottom of the small diameter plate at the bottom of the vertical plate.

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