Cement raw material grinding roller sealing device
By adopting a double-layer sealing structure in the vertical grinding equipment, the serious problem of single-layer sealing air leakage is solved, the sealing effect is improved, and the equipment efficiency and power utilization are improved.
Patent Information
- Application Number
- CN202422494640.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In the vertical grinding equipment of existing cement enterprises, the single-layer sealing structure has severe air leakage, resulting in large air leakage, affecting power consumption and system efficiency.
A double-layer sealing structure is adopted, including sealing sleeve 1 and sealing sleeve 2, which is sealed as the grinding roller shaft swings, and combined with the sealing plate, windproof plate and filler strips to form a double-layer seal to prevent hot air from leaking out.
Effectively reduce air leakage, improve the working efficiency and power utilization of vertical grinding equipment, and reduce the oxygen content at the kiln tail and the cost of ammonia water use.
Smart Images
Figure CN223076220U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grinding roller sealing, in particular to a cement raw material grinding roller sealing device. Background Art
[0002] Vertical mill air leakage has always been a major problem that has plagued cement companies in optimizing electricity consumption. In most vertical mill equipment, the grinding roller bearings are exposed, the lifting roller has a large range of movement, and the air leakage is serious. Every company is making modifications to the sealing structure, but the results are uneven. Most sealing structures have a long production cycle, are difficult to construct, have a short service life, and have serious air leakage, which greatly affects the increase in raw material distribution and electricity consumption, and also increases the oxygen content at the kiln tail and the cost of ammonia water use.
[0003] When the vertical mill is working, the roller of the vertical mill swings up and down due to the fluctuation of the material layer. Therefore, a certain space must be reserved between the rocker arm of the vertical mill and the mill housing (the reserved space is called the roller door) to avoid collision between the rocker arm and the mill housing during the vibration of the roller, thereby damaging the rocker arm and the housing. In order to prevent the external unheated ambient air from leaking into the vertical mill, it is necessary to seal the reserved space. The currently common single-layer seal is not tight and is very easy to leak in external air, resulting in a large amount of air leakage, which has a negative impact on the drying and power consumption of the mill and affects the working efficiency of the system. Therefore, in order to solve the above problems, we propose a cement raw material grinding roller sealing device. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies in the prior art, the utility model provides a cement raw meal grinding roller sealing device to solve the technical problem that the currently common single-layer sealing is not tight, which easily leaks in external air, causing a large amount of air leakage, having a negative impact on the drying and power consumption of the mill, and affecting the working efficiency of the system.
[0006] (II) Technical solution
[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0008] A roller seal device for cement raw meal mill, comprising a support base, a hydraulic system is fixedly installed at the side end of the support base, a transmission arm is rotatably installed on the telescopic rod of the hydraulic system, a roller shaft is arranged at the side end of the transmission arm, a roller is fixedly installed at the side end of the roller shaft, an upper housing is fixedly installed at the upper end of the support base, a roller door is arranged at the side end of the upper housing, the transmission arm is rotatably installed with the support base, the roller is located inside the upper housing, a sealing plate is fixedly installed inside the roller door, a windproof plate is fixedly installed on the inner side wall of the upper housing, a filling rubber strip is arranged between the sealing plate and the windproof plate, a sealing sleeve one is fixedly installed at the side end of the sealing plate, a sealing sleeve two is fixedly installed at the side end of the windproof plate, both the sealing plate and the windproof plate are sleeved outside the roller shaft, the sealing sleeve one is fixedly installed with the outer side wall of the roller shaft, and the sealing sleeve two is fixedly connected with the outer side wall of the roller shaft.
[0009] Preferably: a grinding table assembly is fixedly installed at the side end of the support base, the grinding table assembly includes a driving motor, a speed reducer and a grinding table, a hot air assembly is fixedly installed at the side end of the support base, and the air outlet of the hot air assembly surrounds the periphery of the grinding table.
[0010] Preferably: an upper housing is fixedly installed at the upper end of the upper housing, a feed pipe is arranged at the side end of the upper housing, a separation assembly is fixedly installed on the inner side wall of the upper housing, the separation assembly includes a separator and a driving motor, and a discharge port is fixedly installed at the upper end of the upper housing.
[0011] (III) Beneficial effects
[0012] First, the swing of the roller drives the roller shaft, the roller shaft drives the sealing sleeve one and the sealing sleeve two under force, and the sealing sleeve one and the sealing sleeve two swing along with the roller shaft to maintain the sealed state inside the upper housing. By installing the sealing sleeve one and the sealing sleeve two on the roller shaft of the roller seal device for cement raw meal mill, during the vertical mill process, the sealing sleeve one and the sealing sleeve two swing along with the roller shaft, providing double-layer sealing from inside and outside, avoiding air leakage caused by poor sealing, and effectively improving the practicality of the device.
[0013] Second, the sealing plate is fixedly connected with the roller door to form a second sealing protection. By installing the sealing plate, the windproof plate and the filling rubber strip on the roller door of the roller seal device for cement raw meal mill, during the vertical mill process, the hot air assembly conveys hot air into the upper housing, and the sealing plate, the windproof plate cooperate with the filling rubber strip to effectively seal the roller door, preventing the hot air inside the upper housing from leaking out, thereby effectively improving the practicality of the device. Description of the drawings
[0014] The above description is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model and implement it according to the content of the specification, the following will be described in detail with reference to the preferred embodiments of the present utility model and the accompanying drawings.
[0015] Figure 1 It is a structural diagram of the overall roller seal device for cement raw meal mill of the present utility model;
[0016] Figure 2 It is a structural diagram of the dissection of the roller seal device for cement raw meal mill of the present utility model;
[0017] Figure 3 It is a structural diagram of the installation of the first sealing sleeve of the present utility model;
[0018] Figure 4 It is a structural diagram of the installation of the filling rubber strip of the present utility model.
[0019] Legend: 1. Support base; 11. Grinding table assembly; 12. Hot air assembly; 13. Lower housing; 14. Upper housing; 15. Separation assembly; 16. Discharge port; 17. Hydraulic system; 18. Transmission arm; 19. Grinding roller; 2. Grinding roller door; 21. Sealing plate; 22. Windproof plate; 23. Filling rubber strip; 24. First sealing sleeve; 25. Second sealing sleeve; 26. Grinding roller shaft. Specific implementation manners
[0020] By providing a roller seal device for cement raw meal mill in the embodiments of the present application, the technical problem that the currently common single-layer seal is not tight, it is very easy to leak external air, resulting in a large leakage air volume, having a negative impact on the drying and power consumption of the mill, and affecting the working efficiency of the system is effectively solved.
[0021] Embodiment
[0022] According to Figure 1 、 Figure 2 、 Figure 3 、and Figure 4 As shown, the technical solution in the embodiments of the present application effectively solves the technical problem that the currently common single-layer seal is not tight, it is very easy to leak external air, resulting in a large leakage air volume, having a negative impact on the drying and power consumption of the mill, and affecting the working efficiency of the system. The general idea is as follows:
[0023] In view of the problems existing in the prior art, the utility model provides a sealing device for a cement raw material grinding roller, which comprises a support base 1. A hydraulic system 17 is fixedly installed at the side end of the support base 1. A transmission arm 18 is rotatably installed on the telescopic rod of the hydraulic system 17. A grinding roller shaft 26 is arranged at the side end of the transmission arm 18. A grinding roller 19 is fixedly installed at the side end of the grinding roller shaft 26. An upper housing 13 is fixedly installed at the upper end of the support base 1. A grinding roller door 2 is arranged at the side end of the upper housing 13. Among them, the transmission arm 18 is rotatably installed on the support base 1. The grinding roller 19 is located inside the upper housing 13. A sealing plate 21 is fixedly installed inside the grinding roller door 2. A windproof plate 22 is fixedly installed on the inner side wall of the upper housing 13. A filling rubber strip 23 is arranged between the sealing plate 21 and the windproof plate 22. A hot air component 12 conveys hot air into the upper housing 13. The sealing plate 21, the windproof plate 22 and the filling rubber strip 23 cooperate to effectively seal the grinding roller door 2, preventing the hot air inside the upper housing 13 from leaking out. A sealing sleeve one 24 is fixedly installed at the side end of the sealing plate 21. A sealing sleeve two 25 is fixedly installed at the side end of the windproof plate 22. Among them, both the sealing plate 21 and the windproof plate 22 are sleeved outside the grinding roller shaft 26. The sealing sleeve one 24 is fixedly installed on the outer side wall of the grinding roller shaft 26. The sealing sleeve two 25 is fixedly connected to the outer side wall of the grinding roller shaft 26. The swing of the grinding roller 19 drives the grinding roller shaft 26. The grinding roller shaft 26 drives the sealing sleeve one 24 and the sealing sleeve two 25 under force. The sealing sleeve one 24 and the sealing sleeve two 25 swing along with the grinding roller shaft 26 to maintain the sealed state inside the upper housing 13.
[0024] A grinding disc assembly 11 is fixedly installed at the side end of the support base 1. Among them, the grinding disc assembly 11 includes a driving motor, a speed reducer and a grinding disc. The grinding roller 19 and the grinding disc cooperate to crush the product. A hot air component 12 is fixedly installed at the side end of the support base 1. Among them, the air outlet of the hot air component 12 surrounds the periphery of the grinding disc. The hot air component 12 outputs hot air to blow the finished product to a separation component 15. An upper housing 14 is fixedly installed at the upper end of the upper housing 13. Among them, a feed pipe is arranged at the side end of the upper housing 14. A separation component 15 is fixedly installed on the inner side wall of the upper housing 14. Among them, the separation component 15 includes a separator and a driving motor. The separation component 15 separates the product. The finished product is conveyed out from the discharge port 16. The product with larger particles falls back onto the grinding disc for continuous vertical grinding. A discharge port 16 is fixedly installed at the upper end of the upper housing 14.
[0025] Working principle:
[0026] First step, when the roller seal device of cement raw meal mill is in use, the hydraulic system 17 starts to drive the transmission arm 18. The transmission arm 18 rotates under force. The rotation of the transmission arm 18 drives the roller shaft 26. The roller shaft 26 drives the roller 19 under force. The roller 19 fits with the grinding table. When the roller 19 is working, due to the fluctuation of the material layer, the vertical mill roller swings up and down during operation. The swing of the roller 19 drives the roller shaft 26. The roller shaft 26 drives the first seal sleeve 24 and the second seal sleeve 25 under force. The first seal sleeve 24 and the second seal sleeve 25 swing along with the roller shaft 26 to maintain the sealed state inside the lower housing 13. By installing the first seal sleeve 24 and the second seal sleeve 25 on the roller shaft 26 of the roller seal device of cement raw meal mill, during the vertical mill process, the first seal sleeve 24 and the second seal sleeve 25 swing along with the roller shaft 26, providing double-layer sealing from both inside and outside, avoiding air leakage caused by poor sealing, and effectively improving the practicability of the device.
[0027] Second step, when the roller seal device of cement raw meal mill is in use, the hot air component 12 transports hot air into the lower housing 13. The wind-proof plate 22 blocks the hot air. Then the filling rubber strip 23 fills the gap between the wind-proof plate 22 and the roller door 2 to avoid air leakage. After that, the seal plate 21 is fixedly connected to the roller door 2 to form a second seal protection. By installing the seal plate 21, the wind-proof plate 22 and the filling rubber strip 23 on the roller door 2 of the roller seal device of cement raw meal mill, during the vertical mill process, the hot air component 12 transports hot air into the lower housing 13, and the seal plate 21 and the wind-proof plate 22 cooperate with the filling rubber strip 23 to effectively seal the roller door 2, preventing the hot air inside the lower housing 13 from leaking out, thus effectively improving the practicability of the device.
[0028] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly illustrating the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.
Claims
1. A roller sealing device for cement raw material mill, comprising a support base (1), characterized in that, A hydraulic system (17) is fixedly installed at the side end of the support base (1). A transmission arm (18) is rotatably installed on the telescopic rod of the hydraulic system (17). A roller shaft (26) is arranged at the side end of the transmission arm (18). A roller (19) is fixedly installed at the side end of the roller shaft (26). An upper housing (13) is fixedly installed at the upper end of the support base (1). A roller door (2) is opened at the side end of the upper housing (13); Among them, the transmission arm (18) is rotatably installed on the support base (1), and the roller (19) is located inside the upper housing (13); A sealing plate (21) is fixedly installed inside the roller door (2). A windproof plate (22) is fixedly installed on the inner side wall of the upper housing (13). A filling rubber strip (23) is arranged between the sealing plate (21) and the windproof plate (22). A sealing sleeve one (24) is fixedly installed at the side end of the sealing plate (21). A sealing sleeve two (25) is fixedly installed at the side end of the windproof plate (22); Among them, both the sealing plate (21) and the windproof plate (22) are sleeved on the outside of the roller shaft (26). The sealing sleeve one (24) is fixedly installed on the outer side wall of the roller shaft (26). The sealing sleeve two (25) is fixedly connected to the outer side wall of the roller shaft (26).
2. The roller seal device for cement raw material mill according to claim 1, characterized in that, A grinding disc assembly (11) is fixedly installed at the side end of the support base (1); Among them, the grinding disc assembly (11) includes a driving motor, a speed reducer and a grinding disc.
3. A roller sealing device for cement raw material mill according to claim 2, characterized in that, A hot air assembly (12) is fixedly installed at the side end of the support base (1); Among them, the air outlet of the hot air assembly (12) surrounds the periphery of the grinding disc.
4. A roller seal device for cement raw material mill according to claim 3, characterized in that, An upper housing (14) is fixedly installed at the upper end of the upper housing (13); Among them, a feed pipe is arranged at the side end of the upper housing (14).
5. A roller sealing device for cement raw material mill according to claim 4, characterized in that, A separation assembly (15) is fixedly installed on the inner side wall of the upper housing (14); Among them, the separation assembly (15) includes a separator and a driving motor.
6. A roller sealing device for cement raw material mill according to claim 5, characterized in that, A discharge port (16) is fixedly installed at the upper end of the upper housing (14).