Flour mill with cooling function
By setting a jacket of cooling medium outside the crushing chamber of the mill, cooling of heating materials is achieved, and the problem of melting and agglomeration of heat-sensitive materials in the mill is solved, material losses and production stagnation are avoided, and production is ensured. Continuity.
Patent Information
- Application Number
- CN202323420616.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-14
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2033-12-14
AI Technical Summary
During the crushing process, the grinder rotates the crushing knife at high speed to cut the material, causing friction, resulting in temperature rise, heat-sensitive materials tend to melt and agglomerate, and paste on the screen, causing material loss and production stagnation.
Design a grinder with cooling function. The outer edge of the crushing chamber is equipped with a jacket, and the cooling medium is provided in the jacket. The cooling medium is provided with a cooling inlet and outlet. The cooling medium flows through the cooling channel in the jacket, and The heat-increasing material is heat exchanged to reduce the material temperature.
Through the heat exchange of cooling medium, the temperature of the material is reduced, the melting and agglomeration of heat-sensitive materials is avoided, material losses are reduced, and production continuity is ensured.
Smart Images
Figure CN222428187U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of material grinding and crushing, and more specifically, relates to a grinding machine with a cooling function. Background Art
[0002] The grinding mill achieves the purpose of crushing by cutting the material with a high-speed rotating pulverizer. Since the internal space of the cavity is relatively small compared to the pulverizer and the material, and the high-speed rotating pulverizer cuts the material and causes friction, the temperature rises. Some heat-sensitive materials (such as sucrose) are easy to melt and clump, and then stick to the screen, causing material loss and production stagnation. Utility Model Content
[0003] The utility model aims to provide a grinding mill with a cooling function, aiming to solve the problem that the high-speed rotating grinding knife cuts the material and generates friction, causing the temperature to rise, which makes the heat-sensitive material easy to melt and agglomerate, thus sticking to the screen, causing material loss and production stagnation.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a grinding mill with a cooling function, including a grinding chamber, a grinding cavity is arranged inside the grinding chamber, a feeder connected to the grinding cavity is arranged at the upper end of the grinding chamber, a collector connected to the grinding cavity is arranged at the lower end of the grinding chamber, a grinding knife is arranged in the grinding cavity, a driving device for driving the grinding knife to rotate is arranged on one side of the grinding chamber, a screen is arranged at the lower part of the grinding cavity, the screen is located between the grinding knife and the collector, a jacket is arranged around the outside of the grinding chamber, a cooling medium is arranged in the jacket, and a cooling inlet and a cooling outlet for the cooling medium to flow are respectively arranged on the jacket.
[0005] In a possible implementation, the jacket is disposed around the middle and upper portion of the pulverizing chamber, and the cooling outlet and the cooling inlet are respectively connected to two ends of the jacket.
[0006] In a possible implementation, the angles formed by the two ends of the jacket and the central axis of the pulverizing chamber are 150-180°.
[0007] In a possible implementation, the jacket includes an outer shell and an inner shell, and the inner shell and the outer shell are sequentially arranged outside the crushing chamber from the inside to the outside, and cooling channels with equal intervals are formed between the inner shell and the outer shell, and the cooling outlet and the cooling inlet are respectively opened at both ends of the outer shell and are respectively connected to the cooling channels.
[0008] In a possible implementation, a material collection funnel is provided at the lower end of the crushing chamber, the material collection funnel is located between the screen and the collector, a temperature sensor is provided on one side of the material collection funnel, and a detection probe of the temperature sensor is located in the inner cavity of the material collection funnel.
[0009] In a possible implementation, the temperature sensor is located on the material incoming side of the aggregate hopper facing the rotation direction of the pulverizing knife.
[0010] In a possible implementation, the length of the detection probe of the temperature sensor inserted into the inner cavity of the aggregate funnel is not less than half the width of the inner cavity of the aggregate funnel.
[0011] In a possible implementation, the temperature sensor is located in the upper middle portion of the aggregate hopper.
[0012] The beneficial effect of a grinding mill with a cooling function provided by the utility model is that: compared with the prior art, a jacket is provided around the outside of the grinding chamber, a cooling medium is provided in the jacket, and a cooling inlet and a cooling outlet for the cooling medium to flow are provided on the jacket. The material enters the grinding chamber through the feeder, and the grinding knife rotates under the drive of the driving device, thereby grinding the material. The friction temperature between the material and the grinding knife rises. When the heated material is thrown onto the inner wall of the grinding chamber, the cooling medium in the jacket exchanges heat with the material to reduce the temperature of the material. The cooled material enters the collector through the screen. The grinding mill with a cooling function provided by the utility model can cool the material, avoid the phenomenon of heat-sensitive materials melting and agglomerating and sticking to the screen, avoid material loss, and ensure the continuity of production. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 A lateral structural diagram of a grinding mill with cooling function provided by an embodiment of the utility model;
[0015] Figure 2 This is a front structural diagram of a grinding mill with cooling function provided in an embodiment of the utility model.
[0016] Description of reference numerals:
[0017] 1. Crushing chamber; 2. Feeder; 3. Collector; 4. Crushing knife; 5. Screen; 6. Driving device; 7. Jacket; 8. Cooling inlet; 9. Cooling outlet; 10. Outer shell; 11. Inner shell; 12. Aggregate hopper; 13. Temperature sensor; 14. Detection probe; 15. End cover; 16. Material; 17. Interface; 18. Feeding funnel. DETAILED DESCRIPTION
[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0019] See also Figure 1 and Figure 2 Now, a mill with cooling function provided by the utility model is described. A mill with cooling function comprises a grinding chamber, a grinding chamber 1 is provided inside the grinding chamber, a feeder 2 connected to the grinding chamber 1 is provided at the upper end of the grinding chamber, a collector 3 connected to the grinding chamber 1 is provided at the lower end of the grinding chamber, a grinding knife 4 is provided in the grinding chamber 1, a driving device 6 for driving the grinding knife 4 to rotate is provided on one side of the grinding chamber, a screen 5 is provided at the lower part of the grinding chamber 1, and the screen 5 is located between the grinding knife 4 and the collector 3, a jacket 7 is provided around the outside of the grinding chamber, a cooling medium is provided in the jacket 7, and a cooling inlet 8 and a cooling outlet 9 for the cooling medium to flow are respectively provided on the jacket 7.
[0020] The utility model provides a grinding mill with cooling function. Compared with the prior art, the outer part of the grinding chamber is surrounded by a jacket 7, a cooling medium is arranged in the jacket 7, and a cooling inlet 8 and a cooling outlet 9 for the cooling medium to flow are respectively arranged on the jacket 7. The material 16 enters the grinding chamber through the feeder 2, and the crushing knife 4 rotates under the drive of the driving device 6, thereby crushing the material 16. The friction temperature of the material 16 and the crushing knife 4 rises. When the heated material 16 is thrown onto the inner wall of the grinding chamber 1, the cooling medium in the jacket 7 exchanges heat with the material 16 to reduce the temperature of the material 16. The cooled material 16 enters the collector 3 through the screen 5. The utility model provides a grinding mill with cooling function, which can cool the material 16, avoid the phenomenon of melting and agglomeration of the heat-sensitive material 16 and sticking to the screen 5, avoid the loss of the material 16, and ensure the continuity of production.
[0021] The driving device 6 is a motor installed on one side of the crushing chamber. An openable and closable end cover 15 is provided on the other side of the crushing chamber. The crushing blade 4 in the crushing chamber can be cleaned by opening the end cover 15.
[0022] See also Figure 2The jacket 7 is arranged around the middle and upper part of the pulverizing chamber. The material 16 thrown upward by the pulverizing knife 4 first contacts the middle and upper part of the pulverizing chamber 1, and then rebounds to the pulverizing knife 4 and falls onto the screen 5 after being thrown several times. The cooling outlet 9 and the cooling inlet 8 are respectively connected to the two ends of the jacket 7, forming a stable cooling medium flow direction in the jacket 7.
[0023] Specifically, the angle formed by the two ends of the jacket 7 and the central axis of the pulverizing chamber is 150-180°, which can cover most of the upper area of the pulverizing chamber and ensure comprehensive cooling of the material 16.
[0024] Please refer to Figure 2 The jacket 7 includes an outer shell 10 and an inner shell 11, and the inner shell 11 and the outer shell 10 are sequentially arranged outside the pulverizing chamber from the inside to the outside. Among them, the inner shell 11 can be formed by the outer wall of the pulverizing chamber to achieve better heat transfer to the material 16 in the cooling cavity. Equally spaced cooling channels are formed between the inner shell 11 and the outer shell 10 to ensure the smooth flow of the cooling medium and reduce turbulence. The cooling outlet 9 and the cooling inlet 8 are respectively opened at both ends of the outer shell 10 and are connected to the cooling channels respectively. The cooling medium can be selected from cooling liquid or cooling gas, depending on the on-site working conditions, which will not be repeated here.
[0025] In addition, a feed hopper 18 is provided at the upper end of the crushing chamber, and the material 16 of the feeder 2 passes through the feed hopper 18 and then enters the crushing chamber. An aggregate funnel 12 is provided at the lower end of the crushing chamber, and the aggregate funnel 12 is located between the screen 5 and the collector 3. A temperature sensor 13 is provided on one side of the aggregate funnel 12, and a detection probe 14 of the temperature sensor 13 is located in the inner cavity of the aggregate funnel 12. The material 16 passing through the screen 5 first reaches the aggregate funnel 12, and then enters the collector 3 through the aggregate funnel 12. When the material 16 enters the aggregate funnel 12, the detection probe 14 of the temperature sensor 13 will detect the temperature of the material 16 and feed back the temperature signal to the corresponding receiver, so that the operator can always grasp the temperature of the material 16 and monitor whether the temperature of the material 16 is too high, and the material 16 is stuck on the screen 5.
[0026] Specifically, the temperature sensor 13 is installed through an interface 17 opened on the aggregate funnel 12. The temperature sensor 13 is located on the material incoming side of the aggregate funnel 12 toward the rotation direction of the crushing knife 4. The material incoming side of the rotation direction of the crushing knife 4, that is, the direction in which the material 16 is thrown toward the aggregate funnel 12 by the crushing knife 4, the detection probe 14 of the temperature sensor 13 can fully contact the material 16 entering the aggregate funnel 12 to comprehensively detect the temperature change of the material 16.
[0027] Similarly, the length of the detection probe 14 of the temperature sensor 13 inserted into the inner cavity of the aggregate funnel 12 is not less than half the width of the inner cavity of the aggregate funnel 12. Most of the materials 16 entering the aggregate funnel 12 can effectively contact the detection probe 14 of the temperature sensor 13, which can further improve the comprehensiveness of the temperature detection of the material 16.
[0028] Preferably, the temperature sensor 13 is located in the middle and upper part of the aggregate funnel 12 to detect the temperature of the material 16 that has just entered the aggregate funnel 12. In this state, the temperature of the material 16 is closer to the temperature of the material 16 when passing through the screen 5, and the detection accuracy is higher, so that the circulation speed and temperature of the cooling medium in the jacket 7 can be intelligently linked to meet the cooling requirements of the material 16.
[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A grinding mill with cooling function, characterized in that: The invention comprises a pulverizing chamber, wherein a pulverizing chamber (1) is provided inside the pulverizing chamber, a feeder (2) connected to the pulverizing chamber (1) is provided at the upper end of the pulverizing chamber, a collector (3) connected to the pulverizing chamber (1) is provided at the lower end of the pulverizing chamber, a pulverizing knife (4) is provided inside the pulverizing chamber (1), a driving device (6) for driving the pulverizing knife (4) to rotate is provided on one side of the pulverizing chamber, a screen (5) is provided at the lower part of the pulverizing chamber (1), the screen (5) is located between the pulverizing knife (4) and the collector (3), a jacket (7) is provided outside the pulverizing chamber, a cooling medium is provided inside the jacket (7), and a cooling inlet (8) and a cooling outlet (9) for the cooling medium to flow are respectively provided on the jacket (7).
2. A grinding mill with cooling function as claimed in claim 1, characterized in that: The jacket (7) is arranged around the middle and upper part of the pulverizing chamber, and the cooling outlet (9) and the cooling inlet (8) are respectively connected to the two ends of the jacket (7).
3. A grinding mill with cooling function as claimed in claim 2, characterized in that: The angle formed by the two ends of the jacket (7) and the central axis of the pulverizing chamber is 150-180°.
4. A grinding mill with cooling function as claimed in claim 2, characterized in that: The jacket (7) comprises an outer shell (10) and an inner shell (11), wherein the inner shell (11) and the outer shell (10) are arranged in sequence from the inside to the outside of the pulverizing chamber, and cooling channels with equal intervals are formed between the inner shell (11) and the outer shell (10), and the cooling outlet (9) and the cooling inlet (8) are respectively opened at two ends of the outer shell (10) and are respectively connected to the cooling channels.
5. A grinding mill with cooling function as claimed in claim 1, characterized in that: A material collection hopper (12) is provided at the lower end of the pulverizing chamber. The material collection hopper (12) is located between the screen (5) and the collector (3). A temperature sensor (13) is provided on one side of the material collection hopper (12). A detection probe (14) of the temperature sensor (13) is located in the inner cavity of the material collection hopper (12).
6. A grinding mill with cooling function as claimed in claim 5, characterized in that: The temperature sensor (13) is located on the material incoming side of the aggregate hopper (12) in the direction of rotation of the crushing knife (4).
7. A grinding mill with cooling function as claimed in claim 5, characterized in that: The length of the detection probe (14) of the temperature sensor (13) inserted into the inner cavity of the material collecting funnel (12) is not less than half the width of the inner cavity of the material collecting funnel (12).
8. A grinding mill with cooling function as claimed in claim 5, characterized in that: The temperature sensor (13) is located in the upper middle portion of the aggregate hopper (12).