Rotary kiln surface heat dissipation recovery device

Abstract

The utility model discloses a rotary kiln surface heat dissipation recovery device, and relates to the technical field of rotary kiln waste heat recovery. The device comprises a bottom plate, wherein moving wheels are fixedly mounted at four opposite angles of the bottom of the bottom plate; the number of the sliding plates is two, and the two sliding plates are symmetrically distributed and installed on the top of the bottom plate in a sliding mode. The heat dissipation fins are used for absorbing heat in the rotary kiln, the heat dissipation fins transmit the absorbed heat to the area covered by the two semicircular covers, then air is injected through the air injection pipe, the air is heated through the heat dissipated by the heat dissipation fins, and the collecting pipe is used for collecting the heat absorbed and dissipated by the heat dissipation fins. The device effectively recovers radiant heat generated on the surface of the rotary kiln cylinder, avoids waste caused by the fact that the heat is directly dissipated into the air, improves the utilization efficiency of energy, and meanwhile is beneficial to reduction of production cost and reduction of thermal pollution to the environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary kiln waste heat recovery technical field, concretely relates to a rotary kiln surface heat dissipation recovery device. BACKGROUND

[0002] In the industrial production field, the rotary kiln as a kind of key equipment is widely used in the calcination process of a variety of materials. Its working principle is to place the material to be calcined in the rotary kiln, and heat is added to the kiln by adding fuel such as coal powder or coal gas, so that the temperature of the kiln body is raised to the high temperature condition required for calcination, so as to realize efficient calcination of the material in the kiln. However, in the production process of rotary kiln, a large amount of waste heat will be generated, and the recycling of these waste heat has been an important issue in the field of industrial energy saving.

[0003] At present, the common rotary kiln waste heat utilization mode mainly installs waste heat boiler at the kiln head and the kiln tail. This waste heat boiler can collect the waste heat resources in flue gas and convert it into steam, and then drive the steam turbine to generate power, realize the secondary utilization of energy. Although this technology improves the utilization efficiency of energy to a certain extent, the heat recovered mainly comes from flue gas, and the radiant heat generated on the surface of rotary kiln cylinder cannot be effectively utilized. These radiant heat is directly emitted to the air, causing a large amount of waste of heat source, not only reducing the comprehensive utilization rate of energy, but also causing certain thermal pollution to the environment. The existing technical means has obvious shortcomings in the heat dissipation recovery of rotary kiln cylinder surface. On the one hand, there is a lack of effective device to collect and guide these radiant heat. On the other hand, due to the high temperature and dynamic running characteristics of rotary kiln, it is difficult to recover the surface heat dissipation without affecting the normal operation of the kiln body. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at: in order to solve the problems raised in the above background technology, the utility model provides a rotary kiln surface heat dissipation recovery device.

[0005] The utility model discloses in order to realize above-mentioned purpose specifically adopts following technical scheme: a rotary kiln surface heat dissipation recovery device, include: bottom plate, four diagonal places of bottom plate bottom all are fixedly installed with movable wheel, sliding plate, the quantity is two, two sliding plate symmetry distribution sliding installation in the top of bottom plate, install the moving assembly for driving two sliding plate each other close or far on bottom plate, rotating plate, the quantity is two, two rotating plate are respectively installed in the top of two sliding plates, and the top of two rotating plates all are fixedly installed with semicircle cover, install fixed component between two semicircle cover, when two semicircle cover adjacent one side adjoins, fixed through fixed component, fixed plate, the quantity is two, two fixed plate are fixedly installed between two sides of two semicircle cover inner wall, fixedly install a plurality of adhesion board on fixed plate, and a plurality of adhesion board all are fixedly installed with heat dissipation fin, and one semicircle cover is fixed and is inserted with collecting pipe, and another semicircle cover is fixed and is inserted with injection pipe.

[0006] Further, the moving assembly includes a two-way threaded rod rotatably installed on the top of the bottom plate, both of the sliding plates are threadedly connected with the two-way threaded rod, and a driving motor is fixedly installed on the top of the bottom plate and has an output end fixedly connected with one end of the two-way threaded rod.

[0007] Further, the fixed component includes four first half screws fixedly installed on one of the semicircle covers, four second half screws are fixedly installed on the other semicircle cover, and a positioning cylinder is threadedly sleeved on the single first half screw and the second half screw arranged in opposite abutment.

[0008] Further, the heat dissipation fins are arranged in an array on the abutment plates.

[0009] Further, a fixed frame is fixedly installed on one side of the rotating plate, a limiting plate is slidingly installed on the fixed frame, a limiting groove is fixedly installed on one side of the sliding plate, and the bottom end of the limiting plate is inserted into the limiting groove.

[0010] Further, two fixed rods are fixedly installed on the top of the bottom plate, and both of the sliding plates are slidingly installed on the two fixed rods.

[0011] Further, a plurality of communication pipes are fixedly inserted at both ends of the two semicircle covers, and electromagnets are fixedly installed on both sides of the two semicircle covers.

[0012] Further, sealing pads are fixedly installed on the inner rings of the end portions of the two semicircle covers, and heat preservation layers are fixedly installed on the outer circumferential sides of the two semicircle covers.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model discloses a heat dissipation fin is used for absorbing the heat in the rotary kiln, and the heat dissipation fin transmits the heat absorbed to the area covered by two half circle cages, then injects air through the air injection pipe, and the heat dissipated by the heat dissipation fin heats the air, and the collecting pipe is used for collecting the heat dissipated by the heat dissipation fin and conveying to the place needed, and the device effectively recovers the radiant heat generated on the rotary kiln cylinder surface, avoids the waste caused by the direct dissipation of heat into the air, improves the energy utilization efficiency, and simultaneously helps reducing the production cost and reducing the heat pollution to the environment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the utility model three-dimensional structure diagram;

[0016] Figure 2 It is the utility model Figure 1 Three-dimensional structure cross section view;

[0017] Figure 3 It is another three-dimensional structure cross section view of the utility model Figure 1 ;

[0018] Figure 4 It is another three-dimensional structure cross section view of the utility model Figure 1 ;

[0019] Figure 5 It is another three-dimensional structure diagram of the utility model.

[0020] Reference signs: 1, bottom plate;2, sliding plate;3, moving assembly;31, two-way threaded rod;32, drive motor;4, rotating plate;5, half circle cover;6, fixed assembly;61, first half screw;62, second half screw;63, positioning cylinder;7, fixed plate;8, laminating plate;9, heat dissipation fin;10, collecting pipe;101, air injection pipe;11, fixed frame;12, limit plate;13, limit slot;14, fixed rod;15, communication pipe;16, electromagnet;17, sealing gasket. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0022] As Figures 1-5 shown, an embodiment of the utility model provides a rotary kiln surface heat dissipation recovery device, which comprises: a bottom plate 1, four opposite corners at the bottom of the bottom plate 1 are fixedly provided with moving wheels;

[0023] Two sliding plates 2 are symmetrically arranged on the top of the base plate 1, and the moving assembly 3 is arranged on the base plate 1 to drive the two sliding plates 2 to move close to or away from each other.

[0024] Two rotating plates 4 are rotatably arranged on the top of the two sliding plates 2, and the half-circular cover 5 is fixedly arranged on the top of the two rotating plates 4, and the fixing assembly 6 is arranged between the two half-circular covers 5.

[0025] Two fixed plates 7 are fixedly arranged between the inner walls of the two half-circular covers 5, and the plurality of abutting plates 8 are fixedly arranged on the fixed plate 7, and the heat dissipation fins 9 are fixedly arranged on the abutting plate 8, and the collecting pipe 10 is fixedly arranged on one of the half-circular covers 5, and the air injection pipe 101 is fixedly arranged on the other half-circular cover 5. The heat dissipation fins 9 are abutted on the surface of the rotary kiln.

[0026] The device can be conveniently moved to a suitable position through the moving wheels at the bottom of the base plate 1, and the moving assembly 3 is used to drive the two sliding plates 2 to move close to or away from each other on the base plate 1, so as to adjust the distance between the two rotating plates 4, and the two half-circular covers 5 are close to each other, and the fixed assembly 6 is used to fix the abutted half-circular covers 5, so as to form a complete cover body, and a part of the surface of the rotary kiln is covered. At this time, the radiation heat generated by the surface of the rotary kiln is absorbed by the abutting plate 8 and the heat dissipation fin 9 in the half-circular cover 5, the heat dissipation fin 9 is used to absorb the heat in the rotary kiln, the heat dissipation fin 9 transmits the absorbed heat to the area covered by the two half-circular covers 5, and then air is injected through the air injection pipe 101, the heat dissipated by the heat dissipation fin 9 heats the air, and the collecting pipe 10 is used to collect the heat dissipated by the heat dissipation fin 9, and the heat is transported to the place where it is needed through a certain pipeline system, such as a waste heat boiler, a heat exchanger, etc., which is used to generate steam to drive a steam turbine to do work, or to provide a heat source for other production processes. The device can effectively recover the radiation heat generated by the surface of the rotary kiln, avoid the waste caused by the direct dissipation of heat into the air, improve the energy utilization efficiency, and also help to reduce the production cost and reduce the heat pollution to the environment.

[0027] As Figure 2As shown, in some embodiments, the moving component 3 includes a bidirectional threaded rod 31 rotatably mounted on the top of the base plate 1, and both sliding plates 2 are threadedly connected to the bidirectional threaded rod 31. A drive motor 32 is fixedly mounted on the top of the base plate 1, and the output end of the drive motor 32 is fixedly connected to one end of the bidirectional threaded rod 31. The two sliding plates 2 are respectively threadedly connected to two symmetrical threads on the bidirectional threaded rod 31.

[0028] The start of the drive motor 32 drives the bidirectional threaded rod 31 to rotate, thereby causing the two sliding plates 2 that are threadedly connected to it to move closer or further apart.

[0029] like Figure 4 As shown, in some embodiments, the fixing component 6 includes four first semi-screws 61 fixedly mounted on one of the semi-circular covers 5, and four second semi-screws 62 fixedly mounted on the other semi-circular cover 5. A positioning cylinder 63 is threaded onto a single first semi-screw 61 and a second semi-screw 62 that are relatively fitted together.

[0030] A positioning cylinder 63 is threaded onto the relatively fitted first half screw 61 and second half screw 62. By rotating the positioning cylinder 63, it moves on the first half screw 61 and second half screw 62, thereby tightly fixing the two semicircular covers 5 together to form a complete cover that covers a part of the surface of the rotary kiln.

[0031] like Figure 4 As shown, in some embodiments, there are multiple heat dissipation fins 9, and the multiple heat dissipation fins 9 are arranged in an array and fixedly installed on the bonding plate 8.

[0032] There are multiple heat dissipation fins 9, which are fixedly installed on the bonding plate 8 in an array. This array distribution greatly increases the contact area between the heat dissipation fins 9 and the air, so that heat can be absorbed more quickly and evenly. The heat dissipation fins 9, through their high thermal conductivity, efficiently transfer the absorbed heat to the air injected by the air injection pipe 101, further promoting the diffusion and conduction of heat.

[0033] like Figure 4 As shown, in some embodiments, a fixed frame 11 is fixedly installed on one side of the rotating plate 4, a limiting plate 12 is slidably installed on the fixed frame 11, a limiting groove 13 is fixedly installed on one side of the sliding plate 2, and the bottom end of the limiting plate 12 is inserted into the limiting groove 13.

[0034] The cooperation between the fixed frame 11, the limiting plate 12, and the limiting groove 13 can fix and limit the rotating plate 4, thereby facilitating the limiting and fixing of the semi-circular cover 5 on it. When it is necessary to disassemble the displacement device, the position fixation of the rotating plate 4 can be released, and the limiting plate 12 can be pulled upward directly, so that the bottom end of the limiting plate 12 moves out of the limiting groove 13, thereby releasing the fixation. Rotating the rotating plate 4 allows the semi-circular cover 5 to be laid flat, making it easy to disassemble.

[0035] like Figure 5 As shown, in some embodiments, two fixing rods 14 are fixedly installed on the top of the base plate 1, and two sliding plates 2 are slidably installed on the two fixing rods 14.

[0036] The sliding plate 2 is slidably mounted on the fixed rod 14, which improves the stability of the sliding plate 2 when it moves.

[0037] like Figure 5 As shown, in some embodiments, a plurality of connecting pipes 15 are fixedly inserted into one end of each of the two semicircular covers 5, and an opening is constructed at the other end of each of the two semicircular covers 5. Electromagnets 16 are fixedly installed on both sides of each of the two semicircular covers 5.

[0038] This device can be configured with multiple semi-circular covers 5 on the surface of the rotary kiln, depending on the actual situation. Multiple semi-circular covers 5 can be fixed together by electromagnets 16. Then, a connecting pipe 15 on one semi-circular cover 5 can be inserted into another opening to connect them, which facilitates the centralized collection of heat. Excess openings or connecting pipes 15 can be sealed when not in use.

[0039] like Figure 3 As shown, in some embodiments, sealing gaskets 17 are fixedly installed on the inner rings of the two semicircular covers 5, and heat insulation layers are fixedly installed on the outer periphery of the two semicircular covers 5.

[0040] The sealing gasket 17 is used to increase the sealing performance, while the insulation layer is used to improve the insulation performance of the semi-circular cover 5.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary kiln surface heat dissipation and recovery device, characterized in that, include: The base plate (1) is fixedly equipped with four diagonal casters at the bottom of the base plate (1); There are two sliding plates (2), which are symmetrically distributed and slidably installed on the top of the base plate (1). The base plate (1) is equipped with a moving component (3) for moving the two sliding plates (2) closer to each other or further away from each other. There are two rotating plates (4). The two rotating plates (4) are respectively rotatably installed on the top of the two sliding plates (2). The top of the two rotating plates (4) is fixedly installed with a semi-circular cover (5). A fixing component (6) is installed between the two semi-circular covers (5). When the two semi-circular covers (5) are attached to each other, they are fixed by the fixing component (6). There are two fixing plates (7). The two fixing plates (7) are respectively fixedly installed between the two sides of the inner wall of the two semicircular covers (5). Multiple bonding plates (8) are fixedly installed on the fixing plates (7). Heat dissipation fins (9) are fixedly installed on the multiple bonding plates (8). A collection pipe (10) is fixedly inserted on one of the semicircular covers (5), and an air injection pipe (101) is fixedly inserted on the other semicircular cover (5).

2. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that, The moving component (3) includes a bidirectional threaded rod (31) rotatably mounted on the top of the base plate (1), and both sliding plates (2) are threadedly connected to the bidirectional threaded rod (31). A drive motor (32) is fixedly mounted on the top of the base plate (1), and the output end of the drive motor (32) is fixedly connected to one end of the bidirectional threaded rod (31).

3. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that, The fixing component (6) includes four first semi-screws (61) fixedly installed on one of the semi-circular covers (5), and four second semi-screws (62) fixedly installed on the other semi-circular cover (5). A positioning cylinder (63) is threaded onto a single first semi-screw (61) and a second semi-screw (62) that are relatively fitted together.

4. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that, The number of heat dissipation fins (9) is multiple, and the multiple heat dissipation fins (9) are arranged in an array and fixedly installed on the bonding plate (8).

5. A rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that, A fixed frame (11) is fixedly installed on one side of the rotating plate (4), and a limiting plate (12) is slidably installed on the fixed frame (11). A limiting groove (13) is fixedly installed on one side of the sliding plate (2), and the bottom end of the limiting plate (12) is inserted into the limiting groove (13).

6. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that, Two fixing rods (14) are fixedly installed on the top of the base plate (1), and two sliding plates (2) are slidably installed on the two fixing rods (14).

7. The rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that, Multiple connecting pipes (15) are fixedly inserted at both ends of the two semicircular covers (5), and electromagnets (16) are fixedly installed on both sides of the two semicircular covers (5).

8. A rotary kiln surface heat dissipation and recovery device according to claim 1, characterized in that, A sealing gasket (17) is fixedly installed on the inner ring of each of the two semicircular covers (5), and an insulation layer is fixedly installed on the outer periphery of each of the two semicircular covers (5).

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