Rotary kiln with cleaning function
By installing cleaning pipes and air blowing pipes on the rotary kiln, automated cleaning and drying of the kiln cylinder inner wall is achieved, solving the problems of cumbersome operation and low cleaning efficiency in the existing technology, and improving cleaning efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG BRUNP RECYCLING TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-14
AI Technical Summary
The existing high-temperature calcining rotary kiln is cumbersome to clean, requires manual intervention, and is particularly difficult to clean in the middle, resulting in low efficiency and long time consumption.
Design a rotary kiln with a cleaning function. By setting cleaning pipes and air blowing pipes at both ends of the kiln, the cleaning pipes spray cleaning water and the air blowing pipes spray high-pressure air to achieve automated cleaning and drying of the inner wall of the kiln, especially effective cleaning of the middle part.
It reduces manual operation, improves the efficiency and quality of cleaning inside the kiln, shortens cleaning time, and enhances the cleaning coverage and drying efficiency of the central area.
Smart Images
Figure CN224499043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kiln technology, and in particular to a rotary kiln with a cleaning function. Background Technology
[0002] After each production or experiment, the rotary kiln of the high-temperature calcining furnace needs to be cleaned by flushing water from one end of the rotary kiln and then ventilated and dried. The entire cleaning work relies on manual labor, which is cumbersome, time-consuming, and difficult to clean the middle part of the rotary kiln. Therefore, there is an urgent need for a rotary kiln that can be easily cleaned inside. Utility Model Content
[0003] The purpose of this utility model is to provide a rotary kiln with a cleaning function to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.
[0004] The solution to the technical problem of this utility model is:
[0005] A rotary kiln with a cleaning function includes: a support frame with at least two cylindrical covers spaced apart along a straight line; a kiln cylinder rotatably connected to the support frame, with both ends of the kiln cylinder extending into the two cylindrical covers respectively, and a discharge port provided on the bottom side of the cylindrical cover at one end of the kiln cylinder; and a cleaning pipe connected to the cylindrical covers at both ends of the kiln cylinder, with a plurality of first spray nozzles provided on the outer side of the cleaning pipe along the length of the cleaning pipe, and at least one end of the cleaning pipe protruding from the cylindrical cover and forming a first joint.
[0006] This technical solution has at least the following beneficial effects: The kiln cylinder is rotatably connected to the support and can rotate on the support. A cylinder cover is installed at both ends of the kiln cylinder on the support to seal the two ends of the kiln cylinder to the upstream and downstream external equipment. When the kiln cylinder needs cleaning after operation, the first connector of the cleaning pipe protruding from the end of the cylinder cover is connected to the external water supply equipment or municipal water pipe to supply cleaning water to the cleaning pipe. The cleaning water is sprayed from multiple first spray nozzles on the outside of the cleaning pipe to the inner wall of the kiln cylinder, rinsing the inner wall. At this time, the kiln cylinder rotates, and the cleaning water sprayed from the cleaning pipe can rinse the inner wall of the kiln cylinder circumferentially. This reduces manual operation, and the water sprayed from the cleaning pipe can simultaneously flush and clean the entire inner wall of the kiln cylinder, especially the middle part of the kiln cylinder, effectively improving the efficiency and quality of cleaning the inside of the kiln cylinder.
[0007] As a further improvement to the above technical solution, the present invention also includes an air blowing pipe, which is connected to the cylinder cover located at both ends of the kiln cylinder. The air blowing pipe extends along the length direction of the kiln cylinder, and a plurality of second injection ports are provided on the outer side of the air blowing pipe along the length direction of the air blowing pipe. At least one end of the air blowing pipe protrudes from the kiln cylinder and forms a second connector. An exhaust port is provided on the top side of the cylinder cover located at the other end of the kiln cylinder.
[0008] As a further improvement to the above technical solution, the plurality of first injection ports and the plurality of second injection ports are staggered along the length direction of the kiln.
[0009] As a further improvement to the above technical solution, a first motor is provided on the outside of the bracket, which can drive the cleaning pipe and the air blowing pipe to rotate.
[0010] As a further improvement to the above technical solution, two second motors are provided on the outside of the bracket, and the two second motors drive the cleaning pipe and the air blowing pipe to rotate respectively.
[0011] As a further improvement to the above technical solution, the cleaning pipe has the first connector formed at both ends, and the air blowing pipe has the second connector formed at both ends.
[0012] As a further improvement to the above technical solution, the air blowing pipe is detachably connected to the two cylindrical covers.
[0013] As a further improvement to the above technical solution, the cleaning pipe is detachably connected to the two cylindrical covers.
[0014] As a further improvement to the above technical solution, the kiln cylinder is inclined from one end to the other, and the discharge port is located on the bottom side of the cylinder cover near the lower end of the kiln cylinder.
[0015] As a further improvement to the above technical solution, the outer side of the kiln cylinder is covered with a heat insulation layer.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 yes Figure 1 A magnified view of part A.
[0020] In the attached diagram: 100-support, 110-cylinder cover, 111-discharge port, 112-exhaust port, 210-kiln cylinder, 220-insulation layer, 300-cleaning pipe, 310-first injection port, 400-air blowing pipe, 410-second injection port. Detailed Implementation
[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0025] Reference Figure 1A rotary kiln with a cleaning function includes a support 100, a kiln cylinder 210, and a cleaning pipe 300. At least two cylindrical covers 110 are spaced apart along a straight line on the support 100, for example, there are two cylindrical covers 110. The kiln cylinder 210 is rotatably connected to the support 100. In practical applications, a motor driving the kiln cylinder 210 is mounted on the support 100. The motor is connected to a gear, and a gear ring is mounted on the outer side of the kiln cylinder 210. The gear ring meshes with the gear, and the motor outputs rotational power to the gear. Power is transmitted through the gear and gear ring, thereby driving the kiln cylinder 210 to rotate. Both ends of the kiln cylinder 210 extend into the two cylindrical covers 110 respectively. Mechanical seals can be provided at both ends of the two cylindrical covers 110 and the kiln cylinder 210 to achieve a connection seal at the end of the kiln cylinder 210. A discharge port 111 is provided on the bottom side of the cylindrical cover 110 located at one end of the kiln cylinder 210. A cleaning pipe 300 is connected to the cylindrical covers 110 located at both ends of the kiln cylinder 210. Multiple first spray ports 310 are provided on the outer side of the cleaning pipe 300 along the length direction of the cleaning pipe 300. At least one end of the cleaning pipe 300 protrudes from the cylindrical cover 110 and forms a first joint.
[0026] As described above, the kiln cylinder 210 is rotatably connected to the support 100 and can rotate on the support 100. A cylinder cover 110 is installed on the support 100 at both ends of the kiln cylinder 210 to seal both ends of the kiln cylinder 210 to the upstream and downstream external equipment. When the kiln cylinder 210 needs cleaning after operation, the first connector of the cleaning pipe 300, protruding from the end of the cylinder cover 110, is connected to the external water supply equipment or municipal water pipe to provide cleaning water to the cleaning pipe 300. Multiple first spray nozzles 310 on the outer side spray water onto the inner wall of the kiln cylinder 210 to rinse the inner wall of the kiln cylinder 210. At this time, the kiln cylinder 210 rotates, and the cleaning water sprayed from the cleaning pipe 300 can rinse the inner wall of the kiln cylinder 210 circumferentially. This can reduce manual operation. The water sprayed from the cleaning pipe 300 can simultaneously flush and clean the entire inner wall of the kiln cylinder 210, especially the middle part of the kiln cylinder 210, which can effectively improve the efficiency and quality of cleaning the inside of the kiln cylinder 210.
[0027] After cleaning the inside of the kiln cylinder 210, it is necessary to dry the inside of the kiln cylinder 210. In order to improve the drying efficiency of the inside of the kiln cylinder 210, this utility model also includes an air blowing pipe 400. The air blowing pipe 400 is connected to the cylinder cover 110 located at both ends of the kiln cylinder 210. The air blowing pipe 400 extends along the length direction of the kiln cylinder 210. Multiple second injection ports 410 are provided on the outer side of the air blowing pipe 400 along the length direction of the air blowing pipe 400. At least one end of the air blowing pipe 400 protrudes from the kiln cylinder 210 and forms a second connector. An exhaust port 112 is provided on the top side of the cylinder cover 110 located at the other end of the kiln cylinder 210. In practical applications, the air blowing pipe 400 and the exhaust pipe can be arranged alternately in the vertical direction or alternately in the horizontal direction. The second connector at the end of the air blowing pipe 400 is connected to an external high-pressure air source to provide high-pressure air to the air blowing pipe 400. Part of the high-pressure air slides along the length of the air blowing pipe 400, while part of the high-pressure air is ejected outward from multiple second injection ports 410 on its outer side and blown toward the inner wall of the kiln cylinder 210, thereby accelerating the evaporation of water on the inner wall of the kiln cylinder 210. The water vapor can be discharged outward from the exhaust port 112 located on the top side of the cylinder cover 110 to maintain the pressure on the inner wall of the kiln cylinder 210. In this way, the drying efficiency of the inner wall of the kiln cylinder 210 is effectively improved by blowing air onto the inner wall of the kiln cylinder 210 through the air blowing pipe 400.
[0028] In addition to blowing air to dry the inner wall of the kiln cylinder 210, the air blowing pipe 400 can also introduce different types of gases, such as nitrogen, oxygen, and reducing gases, during rotary kiln production or experimentation, to achieve functions such as supplying air or cooling the inside of the kiln cylinder 210.
[0029] In addition to allowing air to pass through, the air blowing pipe 400 can also be connected to external water supply equipment or municipal water pipes. It is also used to flush and clean the inner wall of the kiln cylinder 210. To further improve the cleaning effect, such as... Figure 2 As shown, in this embodiment, the plurality of first spray nozzles 310 and the plurality of second spray nozzles 410 are staggered along the length of the kiln cylinder 210. When the cleaning pipe 300 and the air blowing pipe 400 are simultaneously connected to cleaning water to clean the inner wall of the kiln cylinder 210, since the plurality of first spray nozzles 310 and the plurality of second spray nozzles 410 are staggered along the length of the kiln cylinder 210, the positions from the plurality of first spray nozzles 310 to the inner wall of the kiln cylinder 210 do not overlap with the positions from the plurality of second spray nozzles 410 to the inner wall of the kiln cylinder 210, further increasing the coverage of the water flow for direct cleaning of the kiln cylinder 210, thereby improving the cleaning effect on the inner wall of the kiln cylinder 210.
[0030] To extend the service life of the cleaning pipe 300, both the cleaning pipe 300 and the air blowing pipe 400 can be made of metal pipes that are resistant to high temperatures, acids and alkalis, and corrosion.
[0031] In the above embodiments, the cleaning pipe 300 and the air blowing pipe 400 are fixedly set relative to the support 100 during operation. In order to further improve the cleaning effect of the cleaning pipe 300 on the inner wall of the kiln cylinder 210 and the air blowing pipe 400 on the air disturbance effect on the inner wall of the kiln cylinder 210, in Embodiment 1, a motor is used to drive the cleaning pipe 300 and the air blowing pipe 400 to rotate simultaneously. Specifically, a first motor is set on the outside of the support 100. The first motor can drive the cleaning pipe 300 and the air blowing pipe 400 to rotate. Naturally, the two ends of the cleaning pipe 300 and the two ends of the air blowing pipe 400 are respectively rotatably connected to the two cylinder covers 110. When the cleaning pipe 300 is connected to the cleaning water to clean the inner wall of the kiln cylinder 210, the rotating cleaning pipe 300 sprays abundant water from different angles onto the inner wall of the kiln cylinder 210, improving the cleaning effect on the inner wall of the kiln cylinder 210. Similarly, when high-pressure air is supplied to the air blowing pipe 400, the rotating air blowing pipe 400 can better disturb the airflow on the inner wall of the kiln cylinder 210 when it blows air, reducing dead air angles, thereby accelerating the evaporation of water vapor at various locations on the inner wall of the kiln cylinder 210, and further improving the air blowing drying effect on the inner wall of the kiln cylinder 210.
[0032] In Embodiment 2, two motors are used to drive the cleaning pipe 300 and the air blowing pipe 400 to rotate respectively. Specifically, two second motors are provided on the outside of the bracket 100, and the two second motors drive the cleaning pipe 300 and the air blowing pipe 400 to rotate respectively. Similarly, the rotating cleaning pipe 300 can improve the cleaning effect on the inner wall of the kiln 210, and the rotating air blowing pipe 400 can increase the air disturbance on the inner wall of the kiln 210, thereby accelerating the evaporation of moisture at various locations on the inner wall of the kiln 210.
[0033] In the above embodiment, the first connector and the second connector are formed only at one end of the cleaning pipe 300 or one end of the air blowing pipe 400. At this time, water can only be supplied from one end of the cleaning pipe 300 or air can only be supplied from one end of the air blowing pipe 400. In this case, the pressure at the other end of the cleaning pipe 300 or the other end of the air blowing pipe 400 may be insufficient. In order to better ensure the water pressure and air pressure, in this embodiment, the first connector is formed at both ends of the cleaning pipe 300 and the second connector is formed at both ends of the air blowing pipe 400. When it is necessary to spray water to clean the inner wall of the kiln cylinder 210, the cleaning water is supplied to the cleaning pipe 300 from the first connector at both ends. This can better ensure the cleaning effect of the inner wall of the kiln cylinder 210 from the kiln head to the kiln tail. Similarly, when it is necessary to spray air to clean the inner wall of the kiln cylinder 210, the air is supplied to the air blowing pipe 400 from the second connector at both ends. This can better ensure the air supply to the kiln cylinder 210 at the kiln head and kiln tail, which is conducive to improving the uniformity of air supply, especially when nitrogen, oxygen, reducing gas, etc. are introduced during production and experimentation.
[0034] In the above embodiment, both ends of the air blowing pipe 400 can be directly fixed to the two cylindrical covers 110. However, to facilitate maintenance of the air blowing pipe 400, in this embodiment, the air blowing pipe 400 and the two cylindrical covers 110 are detachably connected. When the second injection port 410 on the air blowing pipe 400 becomes blocked, the air blowing pipe 400 can be easily maintained or replaced, thus improving the overall convenience of maintenance and reducing maintenance costs.
[0035] Similarly, both ends of the cleaning pipe 300 can be directly fixed to the two cylindrical covers 110. To facilitate maintenance of the cleaning pipe 300, in this embodiment, the cleaning pipe 300 and the two cylindrical covers 110 are detachably connected. When the first spray port 310 on the cleaning pipe 300 becomes blocked, the cleaning pipe 300 can be easily maintained or replaced, thus improving the overall convenience of maintenance and reducing maintenance costs.
[0036] To facilitate the discharge of materials and cleaning waste from inside the kiln cylinder 210, in this embodiment, the kiln cylinder 210 is inclined from one end to the other, and the discharge port 111 is located on the bottom side of the cylinder cover 110 near the lower end of the kiln cylinder 210. The materials or cleaning waste inside the kiln cylinder 210 flow towards the lower end of the kiln cylinder 210 under the influence of gravity and are discharged from the discharge port 111. In practical applications, a control valve is installed at the discharge port 111 of the kiln cylinder 210, which controls the opening and closing of the discharge port 111.
[0037] A heating source for internal heating, such as an electric heating element or a natural gas heating element, is installed on the kiln cylinder 210. In order to improve heat utilization, in this embodiment, the outer side of the kiln cylinder 210 is covered with a heat insulation layer 220. The heat insulation layer 220 can reduce the heat loss of the kiln cylinder 210 and improve the heating efficiency inside the kiln cylinder 210.
[0038] Naturally, a feed inlet is provided for feeding materials into the kiln cylinder 210. The feed inlet can be formed on the top side of a cylindrical cover 110 that is relatively high near the kiln cylinder 210. A feeding screw device or a feeding pipe chute can be installed on the top side of the cylindrical cover 110 at the position of the feed inlet.
[0039] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A rotary kiln with a cleaning function, characterized in that: include: The support (100) is provided with at least two cylindrical covers (110) spaced apart along a straight line; The kiln cylinder (210) is rotatably connected to the support (100). Both ends of the kiln cylinder (210) extend into the two cylinder covers (110) respectively. A discharge port (111) is provided on the bottom side of the cylinder cover (110) located at one end of the kiln cylinder (210). A cleaning pipe (300) is connected to the shroud (110) located at both ends of the kiln cylinder (210). A plurality of first spray nozzles (310) are provided on the outer side of the cleaning pipe (300) along the length direction of the cleaning pipe (300). At least one end of the cleaning pipe (300) protrudes from the shroud (110) and forms a first connector.
2. The rotary kiln with cleaning function according to claim 1, characterized in that: It also includes an air blowing pipe (400), which is connected to the shroud (110) located at both ends of the kiln cylinder (210). The air blowing pipe (400) extends along the length of the kiln cylinder (210). A plurality of second injection ports (410) are provided on the outer side of the air blowing pipe (400) along the length of the air blowing pipe (400). At least one end of the air blowing pipe (400) protrudes from the kiln cylinder (210) and forms a second connector. An exhaust port (112) is provided on the top side of the shroud (110) located at the other end of the kiln cylinder (210).
3. A rotary kiln with a cleaning function according to claim 2, characterized in that: The plurality of first injection ports (310) and the plurality of second injection ports (410) are staggered along the length of the kiln cylinder (210).
4. A rotary kiln with a cleaning function according to claim 2, characterized in that: A first motor is provided on the outside of the bracket (100), which can drive the cleaning pipe (300) and the air blowing pipe (400) to rotate.
5. A rotary kiln with a cleaning function according to claim 2, characterized in that: Two second motors are provided on the outside of the bracket (100), and the two second motors drive the cleaning pipe (300) and the air blowing pipe (400) to rotate respectively.
6. A rotary kiln with a cleaning function according to claim 2, characterized in that: The first connector is formed at both ends of the cleaning pipe (300), and the second connector is formed at both ends of the air blowing pipe (400).
7. A rotary kiln with a cleaning function according to claim 2, characterized in that: The air blowing pipe (400) is detachably connected to the two cylindrical covers (110).
8. A rotary kiln with a cleaning function according to claim 1, characterized in that: The cleaning pipe (300) is detachably connected to the two sleeves (110).
9. A rotary kiln with a cleaning function according to claim 1, characterized in that: The kiln cylinder (210) is inclined from one end to the other, and the discharge port (111) is located on the bottom side of the shroud (110) near the lower end of the kiln cylinder (210).
10. A rotary kiln with a cleaning function according to claim 1, characterized in that: The outer side of the kiln cylinder (210) is covered with a heat insulation layer (220).