Kiln riding wheel cooling device
By using a dual-cycle cooling system, the main and auxiliary cooling mechanisms work together to solve the problem of rapid heating of the rollers, achieving efficient cooling, extending equipment life and saving energy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-31
AI Technical Summary
The existing cooling oil cannot effectively cool the rollers in a rapidly heating environment, causing the roller temperature to rise continuously and affecting its service life.
A dual-cycle cooling system is adopted, including a main cooling mechanism and a secondary cooling mechanism. The temperature of the cooling medium is monitored by temperature sensors and controllers. When the main cooling mechanism cannot meet the demand, the secondary cooling mechanism is activated, using high-efficiency cooling components such as high-efficiency plate coolers to enhance cooling, thus achieving dual-cycle cooling.
It improves cooling efficiency, can reduce roller temperature in time, avoids normal operation due to excessive oil temperature, extends equipment service life, and reduces energy consumption and equipment wear.
Smart Images
Figure CN224065886U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a supporting wheel cooling device, and especially relates to a kiln supporting wheel cooling device. BACKGROUND
[0002] When the rotary kiln is working, the burner combustion makes the material and the cylinder temperature rapidly rise, the cylinder heat is transferred to the wheel belt, the supporting wheel directly contacts the wheel belt, can receive part of the heat of the wheel belt, and is further transferred to the supporting wheel shaft and the bearing.
[0003] At present, the common way for cooling the supporting wheel is to cool the cooling oil through air cooling and water cooling, and then the cooling oil is introduced into the supporting wheel through the circulating pipeline to cool the supporting wheel, but only the conventional cooling can be carried out.
[0004] In view of the above problems, the kiln supporting wheel cooling device is provided. UTILITY MODEL CONTENTS
[0005] The kiln supporting wheel cooling device is used to solve the problem that the cooling oil cannot be effectively cooled when the supporting wheel temperature rapidly rises in the prior art.
[0006] The technical problem solved by the utility model is realized by adopting the following technical scheme:
[0007] The application discloses a kiln roller cooling device, which comprises a roller main body and a main cooling mechanism for cooling the roller main body, wherein the main cooling mechanism comprises a main cooling pipeline, a first cooling assembly for cooling the main cooling pipeline, a first pump body for realizing circulation of cooling medium between the roller main body and the main cooling pipeline, and a secondary cooling mechanism arranged on the main cooling pipeline and comprising a secondary cooling pipeline communicated with the downstream end of the main cooling pipeline and a second cooling assembly communicated with the secondary cooling pipeline, wherein the second cooling assembly has a refrigeration efficiency greater than that of the first cooling assembly, and the secondary cooling pipeline is provided with a second pump body; and the kiln roller cooling device further comprises a monitoring assembly for starting the secondary cooling mechanism to realize a double-circulation cooling system and maintaining the working medium temperature in an appropriate range when the main cooling mechanism cannot effectively control the working medium temperature in a preset threshold range.
[0008] Preferably, the monitoring assembly comprises a temperature sensor installed on the main cooling pipeline, a control valve arranged at the input end of the secondary cooling pipeline and a controller for opening and closing the control valve according to the received temperature signal of the temperature sensor.
[0009] Preferably, the temperature sensor is installed at the downstream end of the main cooling pipeline relative to the first cooling assembly.
[0010] Preferably, the flow rate and lift of the second pump body are greater than those of the first pump body.
[0011] Preferably, an equalizing cavity is arranged at the intersection of the main cooling pipeline and the secondary cooling pipeline, and a plurality of staggered baffles are arranged in the equalizing cavity.
[0012] Preferably, a plurality of heat dissipation fins are arranged on the equalizing cavity.
[0013] The kiln roller cooling device has the beneficial effects that through the cooperative operation of the main circulation and the secondary circulation, especially when the oil temperature is abnormal, the secondary cooling mechanism rapidly intervenes to improve the cooling efficiency, avoids the influence of the high temperature of the roller main body on the normal operation, and when the oil temperature reaches a threshold value, the secondary circulation is started; after the normal operation is restored, the main circulation can be precisely switched back to ensure that the oil temperature is always in an appropriate working state and the oil temperature fluctuation does not adversely affect the roller main body. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to make the technical means, creative features, purposes and effects realized by the utility model more easily understood, the utility model will be further described below in combination with specific drawings.
[0015] Figure 1 The isometric structure schematic diagram provided by the utility model Figure 1 ;
[0016] Figure 2 The isometric structure schematic diagram provided by the utility model Figure 2 ;
[0017] Figure 3 The partial structure schematic diagram provided by the utility model
[0018] Figure 4 The cross section structure schematic diagram of the equalizing cavity in the utility model.
[0019] In the figure, 1, the supporting wheel main body; 2, the main cooling pipeline; 21, the first pump body; 22, the first cooling component; 3, the auxiliary cooling pipeline; 31, the second cooling component; 32, the second pump body; 4, the temperature sensor; 41, the control valve; 42, the controller; 5, the equalizing cavity; 51, the spoiler; 6, the radiating fin. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, purposes and effects realized by the utility model more easily understood, the utility model will be further described below in combination with specific drawings.
[0021] Referring to Figures 1-4As shown, a kiln carrier wheel cooling device, including carrier wheel body 1 and the main cooling mechanism for cooling carrier wheel body 1, the main cooling mechanism includes with the main cooling pipeline 2 and with the first cooling assembly 22 for cooling the main cooling pipeline 2, both ends of the main cooling pipeline 2 are communicated with the carrier wheel body 1 respectively, and the main cooling pipeline 2 is provided with the first pump body 21 for realizing the circulation of cooling medium between the carrier wheel body 1 and the main cooling pipeline 2, the commonly used cooling medium can adopt cooling oil etc., the circulation flow of cooling oil between the main cooling pipeline 2 and the carrier wheel body 1 is realized through the first pump body 21, the carrier wheel body 1 transmits heat to the cooling oil, then the cooling oil is cooled in the first cooling assembly 22, and then enters the carrier wheel body 1 to cool down, wherein the first cooling assembly 22 can adopt fan cooling type cooling, and the main cooling pipeline 2 opposite to the first cooling assembly 22 can adopt "S" type or "back" type to increase the contact cotton knot with the first cooling assembly 22, in the daily use state of the carrier wheel body 1, the cooling effect of the cooling liquid can meet the demand of the carrier wheel body 1, however, when the carrier wheel body 1 and the wheel belt contact badly, the pressure borne by the carrier wheel body 1 increases suddenly, etc. Unexpected situation causes the rotating resistance of the carrier wheel body 1 to increase sharply, the carrier wheel body 1 is rapidly heated, and the cooling of the cooling oil through the original conventional cooling cannot meet the cooling demand of the carrier wheel body 1, therefore, the utility model is provided with the secondary cooling mechanism on the main cooling pipeline 2 and the monitoring assembly for starting the secondary cooling mechanism to realize double circulation cooling system when the main cooling mechanism cannot control the working medium temperature in the preset threshold range to effectively cool the carrier wheel body 1, wherein the secondary cooling mechanism includes the secondary cooling pipeline 3 communicated with the downstream end of the first cooling assembly 22 of the main cooling pipeline 2 and the second cooling assembly 31 communicated with the secondary cooling pipeline 3, the refrigeration efficiency of the second cooling assembly 31 is greater than that of the first cooling assembly 22, for example, when the first cooling assembly 22 adopts air cooling type cooling mode to meet the daily cooling demand of the carrier wheel, the second cooling assembly 31 can adopt high-efficiency plate cooler to cool the cooling liquid in the main cooling pipeline 2 which is not cooled in place, the high-efficiency plate cooler is assembled by a series of metal sheets with corrugated shape, the narrow fluid channel is formed between the sheets, when the hot cooling oil and the cold cooling medium flow in the adjacent sheet channels respectively, the heat is transferred from the hot medium side to the cold medium side through the sheet due to the good heat conduction performance of the sheet, thereby realizing the cooling of the hot cooling oil, the above is the prior art, and those skilled in the art should know that, without too much description here, and the second cooling assembly 31 is not limited to adopting high-efficiency plate cooler, and can adopt semiconductor cooler and the like to realize efficient cooling, the secondary cooling pipeline 3 is provided with the second pump body 32, the monitoring assembly includes the temperature sensor 4 installed on the main cooling pipeline 2, the control valve 41 arranged at the input end of the secondary cooling pipeline 3 and the controller 42,The controller 42 is used to open and close the control valve 41 based on the temperature signal received from the temperature sensor 4.
[0022] Specifically, when the temperature sensor 4 detects that the temperature of the coolant in the main cooling pipe 2 exceeds the set threshold, it indicates that the temperature of the cooled oil after cooling cannot meet the cooling requirements of the roller body 1 at this time. At this time, the temperature of the roller body 1 is high. Therefore, the temperature sensor 4 transmits the temperature signal to the controller 42. The controller 42 opens the control valve 41 and the second pump body 32, so that the cooling oil will enter the auxiliary cooling pipe 3 through the main cooling pipe 2. The second cooling component 31 will cool the cooling oil more efficiently. The cooled oil is discharged back into the main cooling pipe 2 for mixing and then enters the roller body 1 for cooling. The dual-circulation design makes the cooling system have a stronger cooling capacity. Especially when the roller body 1 heats up rapidly, the auxiliary cooling mechanism can quickly reduce the oil temperature. Compared with the traditional single-circulation oil cooling system, the cooling efficiency is higher.
[0023] Furthermore, through the dual-circulation cooling system, it can switch between conventional cooling and high-efficiency cooling states according to cooling needs. Especially when the oil temperature is abnormal, the high-efficiency plate cooler in the secondary circulation quickly intervenes to improve cooling efficiency. This allows the roller body 1 to control the oil temperature within a reasonable range in a timely manner when facing various working conditions, including sudden high loads and changes in material properties that lead to a significant increase in heat generation. This avoids the roller body 1 from being affected by excessively high oil temperature. It also avoids the situation where the cooling equipment is running at full load and consuming a lot of energy when the high-efficiency cooling mechanism is directly installed. Moreover, long-term high-load operation of the cooling equipment will accelerate the wear and aging of the equipment. Taking the high-efficiency plate cooler as an example, long-term full-load operation will subject the internal plates to greater pressure and thermal stress, which can easily lead to deformation, cracking and other problems, shortening the service life of the equipment and increasing the cost of equipment maintenance and replacement.
[0024] Reference Figure 3 As shown, further, the temperature sensor 4 is installed at the downstream end of the main cooling pipe 2, which is located in the first cooling component 22. It is used to detect the temperature of the cooling oil in the main cooling pipe 2 after it has been cooled by the first cooling component 22. When the temperature of the cooled oil after cooling is detected to still exceed the set threshold, the temperature signal is sent to the controller 42 to start the operation of the auxiliary cooling mechanism.
[0025] Furthermore, the flow rate and head of the second pump body 32 are greater than those of the first pump body 21. For example, the first pump body 21 can be a screw pump, gear pump, etc., while the second pump body 32 can be a centrifugal pump, etc. Flow rate is the volume of liquid passing through the pump outlet per unit time. The larger flow rate of the second pump body 32 means that it can deliver more volume of oil in the same amount of time. Head is the ability of a pump body to lift liquid to a certain height or overcome pipeline resistance to make liquid flow. The larger head of the second pump body 32 indicates that it can provide greater pressure to the oil, enabling the oil to overcome greater resistance when flowing in the pipeline, thereby allowing more cooling oil to enter the auxiliary cooling pipe 3 for cooling and temperature reduction.
[0026] Reference Figures 3-4 As shown, further, an equalization chamber 5 is provided at the intersection of the main cooling pipe 2 and the auxiliary cooling pipe 3. The equalization chamber 5 is provided with multiple staggered baffles 51. The cooling oil cooled by the auxiliary cooling pipe 3 and the cooling oil in the main cooling pipe 2 enter the equalization chamber 5 together. Under the action of the baffles 51, local eddies and turbulence are formed, mixing cooling oils of different temperatures to achieve oil temperature equalization, making the cooling oil temperature before entering the roller body 1 more uniform, avoiding local temperatures that are too high or too low, which would affect the cooling effect.
[0027] Reference Figure 4 As shown, the equalization chamber 5 is further equipped with multiple heat dissipation fins 6. One end of the heat dissipation fin 6 is located inside the equalization chamber 5, and the other end is located outside the equalization chamber 5 in contact with the air. The heat dissipation fins 6 can help the oil at different temperatures in the equalization chamber 5 to exchange heat more quickly, allowing the heat of the high-temperature oil to dissipate more quickly, and the low-temperature oil to absorb heat more quickly, thereby accelerating the oil temperature equalization process and improving the effect and accuracy of oil temperature equalization. In particular, when there is a large temperature difference between the oil in the main cooling pipe 2 and the auxiliary cooling pipe 3, the heat dissipation fins 6 can assist the mixing chamber in better completing the oil temperature equalization task.
Claims
1. A kiln roller cooling device, comprising a roller main body (1) and a main cooling mechanism for cooling the roller main body (1), wherein the main cooling mechanism comprises a main cooling pipe (2) and a first cooling assembly (22) for cooling the main cooling pipe (2), two ends of the main cooling pipe (2) are respectively connected with the roller main body (1), and a first pump body (21) for circulating cooling medium between the roller main body (1) and the main cooling pipe (2) is arranged on the main cooling pipe (2), characterized in that, The main cooling pipeline (2) is further provided with a secondary cooling mechanism, the secondary cooling mechanism comprises a secondary cooling pipeline (3) in communication with the downstream end of the first cooling assembly (22) of the main cooling pipeline (2) and a second cooling assembly (31) in communication with the secondary cooling pipeline (3), the secondary cooling pipeline (3) is provided with a second pump body (32), and the second cooling assembly (31) has a refrigeration efficiency greater than that of the first cooling assembly (22); The monitoring assembly is further included, and when the main cooling mechanism cannot effectively control the temperature of the working medium in the preset threshold range, the secondary cooling mechanism is started to realize a double-circulation cooling system, and the temperature of the working medium is maintained in an appropriate range.
2. A kiln roller cooling device according to claim 1, characterised in that, The monitoring assembly comprises a temperature sensor (4) installed on the main cooling pipeline (2), a control valve (41) arranged at an input end of the secondary cooling pipeline (3) and a controller (42), and the controller (42) is used for opening and closing the control valve (41) according to the temperature signal of the temperature sensor (4).
3. A kiln roller cooling device according to claim 2, characterised in that, The temperature sensor (4) is installed at the downstream end of the first cooling assembly (22) of the main cooling pipeline (2).
4. A kiln roller cooling device according to claim 1, wherein The flow and head of the second pump body (32) are greater than those of the first pump body (21).
5. A kiln roller cooling device according to claim 1, wherein The junction of the main cooling pipeline (2) and the secondary cooling pipeline (3) is provided with an equalizing cavity (5), and the equalizing cavity (5) is internally provided with a plurality of staggered baffles (51).
6. A kiln roller cooling device according to claim 5, characterised in that, A plurality of heat dissipation fins (6) are arranged on the equalizing cavity (5).