Rotary kiln heat recovery assembly

Abstract

The utility model discloses a heat recovery assembly of a rotary kiln, and relates to the technical field of cement production equipment. The front cooling cover and the rear cooling cover are arranged at the front end and the rear end of the outer wall of the kiln body in a sleeved mode, adjusting holes are formed in the upper side and the lower side of the rear end face of the front cooling cover, butt joint assemblies are arranged in the adjusting holes, an air cooling unit is arranged on one side of the kiln body, and a heat recovery assembly is arranged on the other side of the kiln body. According to the utility model, the front cooling cover and the rear cooling cover are conveniently and quickly disassembled by a worker through the butt joint assembly, time and labor are saved, the working efficiency is high, other equipment or materials can be dried and the like by utilizing the air cooling unit and the heat recovery assembly, or the heat of cooling water in the replacement box is replaced, so that the heat recovery effect is achieved; the heat recovery efficiency and effect can be improved, and heat waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cement production equipment, in particular to a rotary kiln heat recovery component. Background Art

[0002] With the development of society and technology, equipment in various fields has been greatly improved. Rotary kiln is one of the equipment in the cement production process, and rotary kiln is widely used in many production industries such as building materials, metallurgy, chemical industry, environmental protection, etc. During the use of rotary kiln, heat recovery components are needed to recover the heat in the rotary kiln, which can improve the utilization efficiency of heat and reduce resource waste.

[0003] After searching, the publication number CN217465403U, the application date 2022.06.20 discloses a rotary kiln body radiation heat recovery device, including a base, a motor is provided on one side of the top of the base, a driving wheel is provided on the motor shaft, a kiln tail is provided on one side of the top of the base, a kiln head is provided on the top of the base on the side away from the kiln tail, a fixed seat is provided on the top of the base at a position close to the kiln head, a rotary kiln cylinder is provided between the kiln tail and the kiln head, and a gear ring is provided on the outer wall of one side of the rotary kiln cylinder. The rotary kiln body radiation heat recovery device described in the utility model relates to the technical field of rotary kiln heat recovery equipment, and a heat conductive cover is provided on the outside of the rotary kiln cylinder, which is conducive to the heat on the outside of the rotary kiln cylinder to be discharged through the circulating water of the heat conductive cover, and then the heated circulating water and water vapor are used in other industrial production, and the balls in the arc-shaped mounting rod will not cause the heat conductive cover to increase the rotational resistance of the rotary kiln cylinder.

[0004] However, it still has the following disadvantages in actual use:

[0005] The above-mentioned rotary kiln body radiation heat recovery device realizes the disassembly and assembly of the heat conductive cover through the first plug rod, the second plug rod, the screw, the stud and other structures when in use. However, this method is relatively cumbersome, time-consuming and labor-intensive during the operation of the staff, resulting in low work efficiency.

[0006] 2. The above-mentioned rotary kiln body radiation heat recovery device plays the role of heat absorption and recovery through the heat conductive cover when in use, but this method has poor heat absorption efficiency and effect, which will cause heat waste. To this end, we provide a rotary kiln heat recovery component to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a rotary kiln heat recovery component, which is convenient for workers to quickly disassemble the front cooling cover and the rear cooling cover by arranging a docking component, saving time and effort and having high work efficiency. The air cooling unit and the heat recovery component can be used to dry other equipment or materials, or to perform heat replacement on the cooling water inside the replacement box to play a role in heat recovery, thereby improving the efficiency and effect of heat recovery and reducing heat waste.

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] The utility model is a rotary kiln heat recovery component, comprising a kiln body and a front cooling cover and a rear cooling cover sleeved on the front and rear ends of the outer wall thereof, wherein adjustment holes are provided on both sides above and below the rear end surface of the front cooling cover, a docking component is provided inside the adjustment hole, an air cooling unit is provided on one side of the kiln body, and a heat recovery component is provided on the other side of the kiln body;

[0010] The docking assembly includes a right pressing plate and a left pressing plate symmetrically arranged on one side of the vertical center plane of the adjustment hole;

[0011] The heat recovery component comprises a cyclone separator and a connecting pipe installed at the air outlet end thereof through a pipe joint, and an outer side of the outer wall of the connecting pipe is sheathed with a heat preservation sleeve.

[0012] The utility model is further configured that support seats are arranged on both sides of the bottom of the kiln body, a cold air pipe is arranged at the center of the outer wall of one side of the kiln body, and the other end of the cold air pipe is connected to the air outlet end of the air cooling unit through a pipe joint.

[0013] The utility model is further configured that an air outlet pipe is arranged at the center of the outer wall on the other side of the kiln body, and the other end of the air outlet pipe is connected to the air inlet end of the cyclone separator through a pipe joint.

[0014] The utility model is further configured that a heat absorbing plate is provided at the center of the inner wall of the front cooling cover and the rear cooling cover, and rolling balls are embedded at even intervals along the circumferential direction at the edges of both sides of the inner wall of the front cooling cover and the rear cooling cover.

[0015] The utility model is further configured that docking holes are provided on both sides above and below the front end surface of the rear cooling cover, and coolant pipes are provided at the center positions of the outer walls of both sides of the front cooling cover and the rear cooling cover.

[0016] The utility model is further configured such that an upper connecting rod is fixedly connected to the top edge of the rear end surface of the right pressure plate, a lower connecting rod is fixedly connected to the bottom edge of the rear end surface of the left pressure plate, and a rotating shaft is rotatably connected to the inner center positions of the upper connecting rod and the lower connecting rod.

[0017] The utility model is further configured such that the top and bottom ends of the rotating shaft are respectively fixed on the inner wall of the adjusting hole, a torsion spring is sleeved at the center position of the outer wall of the rotating shaft, and the rear ends of the upper connecting rod and the lower connecting rod are fixedly connected with a clamping plate.

[0018] The utility model is further configured such that the other end of the connecting pipe is connected to the heating pipe and the displacement pipe through a three-way joint, and the other end of the displacement pipe sequentially passes through the top of the front end face of the displacement box and the bottom of the rear end face inside it and is connected to the exhaust pipe through a pipe joint.

[0019] The utility model has the following beneficial effects:

[0020] The utility model provides a docking assembly, which can drive the clamping plates on both sides to rotate with the rotating shaft as the center under the action of the elastic performance of the torsion spring, thereby realizing or canceling the limiting effect between the clamping plate and the docking hole, making it convenient for workers to quickly disassemble the front cooling hood and the rear cooling hood, saving time and effort, and having high work efficiency, and solving the problem that the above-mentioned rotary kiln body radiation heat recovery device realizes the disassembly and assembly of the heat conductive hood through the first plug rod, the second plug rod, the screw, the stud and other structures when in use, while this method is relatively cumbersome, time-consuming and labor-intensive during the operation of the workers, resulting in low work efficiency.

[0021] The utility model can dry other equipment or materials, or replace heat with cooling water inside the replacement box by arranging an air cooling unit and a heat recovery component, thereby playing a role of heat recovery, improving the efficiency and effect of heat recovery, and reducing heat waste. It solves the problem that the above-mentioned rotary kiln body radiation heat recovery device plays a role of heat absorption and recovery through the heat conductive cover when in use, while this method has poor heat absorption efficiency and effect, and causes heat waste.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 The figure is a schematic diagram of the structure of a rotary kiln heat recovery component.

[0025] Figure 2 A cross-sectional view of a rotary kiln heat recovery assembly.

[0026] Figure 3 This is the disassembly diagram of the front cooling cover and the rear cooling cover.

[0027] Figure 4 A structural diagram of the docking assembly.

[0028] Figure 5 This is a disassembled diagram of the heat recovery component.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1-kiln body, 101-support seat, 102-cold air pipe, 103-exhaust pipe, 104-front cooling cover, 1041-heat absorbing plate, 1042-rolling ball, 1043-adjusting hole, 105-rear cooling cover, 1051-docking hole, 1052-cooling liquid pipe, 2-docking assembly, 201-right pressure plate, 2011-upper connecting rod, 202-left pressure plate, 2021-lower connecting rod, 203-rotating shaft, 204-torsion spring, 205-card, 3-air cooling unit, 4-heat recovery assembly, 401-cyclone separator, 4011-connecting pipe, 4012-heating pipe, 402-insulation sleeve, 403-displacement box, 404-displacement pipe, 405-exhaust pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0033] See also Figures 1 to 4 The utility model is a rotary kiln heat recovery component, including a kiln body 1 and a front cooling cover 104 and a rear cooling cover 105 sleeved on the front and rear ends of the outer wall thereof. Adjustment holes 1043 are provided on both sides above and below the rear end surface of the front cooling cover 104, and a docking component 2 is arranged inside the adjustment hole 1043; the docking component 2 includes a right pressure plate 201 and a left pressure plate 202 symmetrically arranged on one side of the adjustment hole 1043 with respect to the vertical center plane.

[0034] Specifically, support seats 101 are provided on both sides of the bottom of the kiln body 1, a cold air pipe 102 is provided at the center of the outer wall of one side of the kiln body 1, and the other end of the cold air pipe 102 is connected to the air outlet end of the air cooling unit 3 through a pipe joint, and an air outlet pipe 103 is provided at the center of the outer wall of the other side of the kiln body 1, and the other end of the air outlet pipe 103 is connected to the air inlet end of the cyclone separator 401 through a pipe joint, and a heat absorbing plate 1041 is provided at the center of the inner wall of the front cooling cover 104 and the rear cooling cover 105, and rolling balls 1042 are embedded at even intervals along the circumferential direction at the edges of the inner walls of the front cooling cover 104 and the rear cooling cover 105, and the upper and lower front end faces of the rear cooling cover 105 are provided with heat absorbing plates 1041. Docking holes 1051 are opened on both sides, and coolant pipes 1052 are arranged at the center positions of the outer walls of both sides of the front cooling cover 104 and the rear cooling cover 105. An upper connecting rod 2011 is fixedly connected to the top edge of the rear end face of the right pressure plate 201, and a lower connecting rod 2021 is fixedly connected to the bottom edge of the rear end face of the left pressure plate 202. The upper connecting rod 2011 and the lower connecting rod 2021 are rotatably connected to the internal center positions of the upper connecting rod 2011 and the lower connecting rod 2021. The top and bottom ends of the rotating shaft 203 are respectively fixed on the inner wall of the adjusting hole 1043, and a torsion spring 204 is sleeved at the center position of the outer wall of the rotating shaft 203. The rear ends of the upper connecting rod 2011 and the lower connecting rod 2021 are fixedly connected to the clamping plate 205.

[0035] Furthermore, the front cooling hood 104 and the rear cooling hood 105 are of the same shape and size, and the air-cooling unit 3 can produce cold air, which is a prior art, so it will not be described in detail here. The cyclone separator 401 is a prior art, so it will not be described in detail here. It can achieve solid-gas separation and prevent dust from accumulating in subsequent pipelines. The heat absorbing plate 1041 can absorb the heat on the outer wall of the kiln body 1. Under the action of the rolling ball 1042, the front cooling hood 104 and the rear cooling hood 105 can roll on the outer wall of the kiln body 1. The right pressure plate 201 and the left pressure plate 202 are arranged opposite to each other, and the right pressure plate 201 and the left pressure plate 202 and the corresponding card plate 205 are connected by the upper connecting rod 2011 and the lower connecting rod 2021, which plays a role of connecting transmission. The upper connecting rod 2011 and the lower connecting rod 2021 will rotate with the rotating shaft 203 as the center, and the card plate 205 can be driven to move under the action of the elastic performance of the torsion spring 204.

[0036] The operation process of this embodiment is as follows: the loading and unloading of clinker is realized through the bin doors on the outer walls of both sides of the kiln body 1, and during the operation of the rotary kiln, the front cooling hood 104 and the rear cooling hood 105 are respectively sleeved on the front and rear sides of the outer wall of the kiln body 1, so that the heat absorbing plates 1041 on the inner walls of the front cooling hood 104 and the rear cooling hood 105 are tightly attached to the outer side of the outer wall of the kiln body 1, and then the right pressure plate 201 and the left pressure plate 202 on both sides are pushed toward the center position of the adjustment hole 1043, wherein the rear end faces of the right pressure plate 201 and the left pressure plate 202 are respectively connected to the clamping plates 205 on both sides of the rear end through the upper connecting rod 2011 and the lower connecting rod 2021, and when the right pressure plate 201 and the left pressure plate 202 are subjected to force, the clamping plates 205 on both sides will be driven to move synchronously through the upper connecting rod 2011 and the lower connecting rod 2021, and at the same time, the upper connecting rod 20 11 and the lower connecting rod 2021 will rotate with the rotating shaft 203 as the center when subjected to force and squeeze the torsion spring 204. At this time, the two side clamps 205 can be moved toward the center, and then the clamps 205 are inserted into the docking holes 1051 on the surface of the rear cooling cover 105, and then the force applied to the right pressure plate 201 and the left pressure plate 202 is stopped. At this time, the two side clamps 205 can be rebounded to the initial position under the elastic performance of the torsion spring 204, and are stuck on the outside of the docking holes 1051 to play a limiting role, and the installation is completed. During the removal of the front cooling cover 104 and the rear cooling cover 105, the above operation is repeated to move the clamps 205 out of the docking holes 1051, so as to facilitate the staff to quickly remove the front cooling cover 104 and the rear cooling cover 105, saving time and effort and high work efficiency. Specific embodiment 2

[0038] See also Figure 1 , 5 On the basis of the specific embodiment 1, what is different from the first embodiment is that: an air-cooling unit 3 and a heat recovery component 4 are provided, the heat recovery component 4 includes a cyclone separator 401 and a connecting pipe 4011 installed at its air outlet end through a pipe joint, and an outer wall of the connecting pipe 4011 is sleeved with an insulation sleeve 402, which solves the problem that the existing rotary kiln body radiation heat recovery device uses a heat conductive cover to absorb heat and recover heat when in use, but this method has poor heat absorption efficiency and effect, which will cause heat waste.

[0039] Specifically, the other end of the connecting pipe 4011 is connected to the heating pipe 4012 and the replacement pipe 404 through a three-way joint. The other end of the replacement pipe 404 passes through the top of the front end face of the replacement box 403 and the bottom of its internal rear end face in sequence and is connected to the exhaust pipe 405 through a pipe joint.

[0040] Furthermore, the insulation sleeve 402 can improve the thermal insulation of the outer wall of the connecting pipe 4011 and reduce heat loss. The pipe joint and the three-way joint both play the role of pipeline connection. The replacement pipe 404 can achieve heat replacement with the cooling water inside the replacement box 403 to reduce energy waste.

[0041] The operation process of this embodiment is as follows: after the kiln body 1 produces materials, the air cooling unit 3 is started. The air cooling unit 3 generates cold air during operation and is passed into the kiln body 1 through the cold air pipe 102, so as to absorb and cool the residual heat in the kiln body 1. The air after absorbing heat is discharged from the air outlet pipe 103 and then enters the cyclone separator 401, so as to separate the dust in the discharged hot air from the hot air. Then the hot air is passed into the heating pipe 4012 or the displacement pipe 404 through the connecting pipe 4011, and other equipment or materials can be dried through the heating pipe 4012. After the hot air enters the displacement pipe 404, the cooling water in the displacement box 403 can be replaced with heat, so as to recover heat, thereby improving the efficiency and effect of heat recovery and reducing heat waste.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rotary kiln heat recovery assembly, comprising a kiln body (1) and a front cooling hood (104) and a rear cooling hood (105) sleeved on the front and rear ends of the outer wall thereof, wherein the front cooling hood (104) has adjustment holes (1043) on both sides above and below the rear end surface thereof, and characterized in that: A docking assembly (2) is arranged inside the adjustment hole (1043), an air cooling unit (3) is arranged on one side of the kiln body (1), and a heat recovery assembly (4) is arranged on the other side of the kiln body (1); The docking assembly (2) comprises a right pressure plate (201) and a left pressure plate (202) symmetrically arranged on one side of the vertical center plane of the adjustment hole (1043); The heat recovery component (4) comprises a cyclone separator (401) and a connecting pipe (4011) installed at the air outlet end thereof via a pipe joint, wherein the outer side of the outer wall of the connecting pipe (4011) is provided with a heat insulation sleeve (402).

2. A rotary kiln heat recovery assembly according to claim 1, characterized in that: Support seats (101) are provided on both sides of the bottom of the kiln body (1), a cold air pipe (102) is provided at the center of the outer wall of one side of the kiln body (1), and the other end of the cold air pipe (102) is connected to the air outlet end of the air cooling unit (3) through a pipe joint.

3. A rotary kiln heat recovery assembly according to claim 2, characterized in that: An air outlet pipe (103) is provided at the center of the outer wall of the other side of the kiln body (1), and the other end of the air outlet pipe (103) is connected to the air inlet end of the cyclone separator (401) through a pipe joint.

4. A rotary kiln heat recovery assembly according to claim 3, characterized in that: A heat absorbing plate (1041) is provided at the center of the inner wall of the front cooling cover (104) and the rear cooling cover (105), and rolling balls (1042) are embedded at even intervals along the circumferential direction at the edges of both sides of the inner wall of the front cooling cover (104) and the rear cooling cover (105).

5. A rotary kiln heat recovery assembly according to claim 4, characterized in that: The front end surface of the rear cooling hood (105) is provided with docking holes (1051) on both sides above and below, and the central positions of the outer walls on both sides of the front cooling hood (104) and the rear cooling hood (105) are provided with cooling liquid pipes (1052).

6. A rotary kiln heat recovery assembly according to claim 1, characterized in that: An upper connecting rod (2011) is fixedly connected to the top edge of the rear end surface of the right pressure plate (201), and a lower connecting rod (2021) is fixedly connected to the bottom edge of the rear end surface of the left pressure plate (202). A rotating shaft (203) is rotatably connected to the inner center positions of the upper connecting rod (2011) and the lower connecting rod (2021).

7. A rotary kiln heat recovery assembly according to claim 6, characterized in that: The top and bottom ends of the rotating shaft (203) are respectively fixed to the inner wall of the adjusting hole (1043); a torsion spring (204) is sleeved at the center of the outer wall of the rotating shaft (203); and the rear ends of the upper connecting rod (2011) and the lower connecting rod (221) are fixedly connected to a clamping plate (205).

8. The rotary kiln heat recovery assembly according to claim 1, characterized in that: The other end of the connecting pipe (4011) is connected to the heating pipe (4012) and the displacement pipe (404) via a three-way joint, and the other end of the displacement pipe (404) sequentially passes through the top of the front end face of the displacement box (403) and the bottom of the rear end face inside the displacement box (403) and is connected to the exhaust pipe (405) via a pipe joint.

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