Universal pulverizer
By using a centrifugal fan in a universal crusher to take away the heat and powdered materials in the crushing chamber, the problem of rising temperature of the crushing chamber is solved, and product quality and processing efficiency are improved.
Patent Information
- Application Number
- CN202420825848.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-21
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-21
AI Technical Summary
During the crushing process, the temperature of the crushing chamber rises, causing changes in the color, taste and performance of the material, affecting product quality.
A universal crusher is designed to blow air into the crushing chamber through a centrifugal fan, remove heat, and discharge powdered materials through the annular cavity and discharge ports to reduce the temperature of the crushing chamber.
Effective cooling and crushing chamber avoids product quality decline caused by high temperature, and timely discharges powdered materials to prevent over-grinding.
Smart Images
Figure CN222174322U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crushing equipment, in particular to a universal crusher. Background Art
[0002] Universal grinders are widely used in food, pharmaceutical, chemical, metallurgical, construction and other industries. They can grind hard and difficult-to-crush materials, such as corn, sorghum, Chinese medicinal materials, quartz, plastic, rubber and other materials. In addition, universal grinders can also be used as upstream supporting equipment for micro-crushers and ultra-micro-crushers for pre-processing.
[0003] When the universal grinder is grinding materials, the temperature in the grinding chamber will continue to rise. This may cause changes in the color, taste, utility or performance of the materials, thus adversely affecting the product quality. Therefore, it is necessary to find a way to reduce the temperature of the grinding chamber of the universal grinder. Summary of the invention
[0004] The utility model aims to provide a universal pulverizer, which can cool the pulverizing chamber and effectively prevent the product quality from being reduced due to the high temperature generated during the pulverizing process.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A universal grinder comprises: a shell; a cover for sealing the shell; and an annular screen arranged in the shell; wherein the annular screen divides the space in the shell into a central grinding chamber and an annular chamber surrounding the grinding chamber; the grinding chamber is provided with a grinding device for grinding materials; a hopper is installed on the outer side of the cover, and the lower end of the hopper is connected to the grinding chamber; the left side of the shell is connected to a centrifugal fan, and a first discharge port is arranged on the right side; and a filter cloth is arranged at the air inlet of the centrifugal fan.
[0007] Optionally, it also includes: a collecting tank; the collecting tank is provided with a feed port at the upper part of the side wall, an exhaust port at the top, and a second discharge port at the bottom; the feed port is connected to the first discharge port, the exhaust port is provided with a filter cloth, and the second discharge port is provided with a valve.
[0008] Optionally, a wind shield mechanism is provided in the hopper; the wind shield mechanism includes: a radial axis installed on the hopper and a wind shield plate hinged to the radial axis; the hopper is provided with a first limit member above the wind shield plate to limit the wind shield plate that is rotated upward to a horizontal state; the hopper is provided with a second limit member below the wind shield plate to prevent the wind shield plate from rotating downward to a vertical state.
[0009] Optionally, the shell is provided with an annular groove for mounting an annular screen on the inner wall facing the sealing cover.
[0010] Optionally, the crushing device includes: a moving knife group driven by a motor and a fixed knife group installed on the cover.
[0011] Optionally, the movable knife group is installed on the first knife disc; the motor drives the movable knife group to rotate by driving the first knife disc to rotate; the movable knife group includes: a plurality of first knives evenly distributed along the circumferential direction of the first knife disc.
[0012] Optionally, the extension direction of the first tool is perpendicular to the disc surface of the first tool disc; the first tool is provided with a first connecting portion at one end facing the first tool disc, and the first connecting portion is detachably connected to the first tool disc by bolts.
[0013] Optionally, the fixed knife group is installed on a second knife disc; the second knife disc is detachably connected to the cover by bolts; the fixed knife group includes: a plurality of second knives evenly distributed along the circumferential direction of the second knife disc.
[0014] Optionally, the extension direction of the second tool is perpendicular to the disc surface of the second tool disc; the second tool is provided with a second connecting portion at one end facing the second tool disc, and the second connecting portion is detachably connected to the second tool disc by bolts.
[0015] Optionally, the movable knife groups are provided in plurality and are distributed radially along the first knife disc; the fixed knife groups are provided in plurality and are distributed radially along the second knife disc; there is a first annular gap between adjacent movable knife groups for the fixed knife groups to pass through; there is a second annular gap between adjacent fixed knife groups for the movable knife groups to pass through.
[0016] The working principle of the utility model is: the material to be crushed can be put into the crushing chamber from the hopper, and the crushing device will crush the material in the crushing chamber. During the crushing process, the centrifugal fan can be used to blow air into the shell, so as to form an airflow from left to right in the shell; the airflow will not only take away the heat in the crushing chamber, but also blow the powdered material in the crushing chamber into the annular cavity and discharge it through the first discharge port. A cloth bag can be put on the first discharge port to collect the discharged powdered material.
[0017] It can be seen that the beneficial effects of the utility model are: the grinding chamber can be cooled, thereby effectively avoiding the degradation of product quality due to the high temperature generated during the grinding process; in addition, the powdered material can be discharged in time during the grinding process, thereby effectively avoiding the occurrence of over-grinding. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 A schematic diagram of a crushing device provided for the utility model;
[0021] Figure 3 for Figure 2 A front view of
[0022] Figure 4 It is the assembly diagram of the crushing device;
[0023] Figure 5 A schematic diagram of a wind shielding mechanism provided for a hopper;
[0024] Figure 6 This is a schematic diagram of the second limiting member limiting the wind shield.
[0025] Figure numerals: 1. shell; 2. cover; 3. annular screen; 4. crushing chamber; 5. annular chamber; 6. hopper; 7. centrifugal fan; 8. first discharge port; 9. air inlet; 10. collecting tank; 11. feed port; 12. exhaust port; 13. radial axis; 14. wind shield; 15. first limit member; 16. second limit member; 17. motor; 18. first cutter disc; 19. first tool; 20. first connecting part; 21. second cutter disc; 22. second tool; 23. second connecting part; 24. first interval; 25. second interval. DETAILED DESCRIPTION
[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0027] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] The following is combined with Figure 1 ~Attached Figure 6 The embodiments of the present utility model are described in detail.
[0031] The embodiment of the utility model provides a universal grinder. The universal grinder comprises: a shell 1, a cover 2 for sealing the shell 1, and an annular screen 3 arranged in the shell 1. The annular screen 3 divides the space in the shell 1 into a crushing chamber 4 in the middle and an annular chamber 5 surrounding the crushing chamber 4. The crushing chamber 4 is provided with a crushing device for crushing materials. A hopper 6 is installed on the outside of the cover 2, and the lower end of the hopper 6 is connected to the crushing chamber 4. The left side of the shell 1 is connected to the centrifugal fan 7, and the right side is provided with a first discharge port 8. The air inlet 9 of the centrifugal fan 7 is provided with a filter cloth. It should be understood that the middle of the left side of the shell 1 is usually connected to the air outlet of the centrifugal fan 7, and the first discharge port 8 is provided at the lower right side of the shell 1.
[0032] The specific implementation mode of the present utility model is described below: the material to be crushed can be put into the crushing chamber 4 from the hopper 6, and the crushing device will crush the material in the crushing chamber 4. During the crushing process, the centrifugal fan 7 can be used to blow air into the shell 1, so that an airflow from left to right is formed in the shell 1; the airflow will not only take away the heat in the crushing chamber 4, but also blow the powdered material in the crushing chamber 4 to the annular chamber 5, and discharge it through the first discharge port 8. A cloth bag can be put on the first discharge port 8 to collect the discharged powdered material. The present utility model can cool the crushing chamber 4, thereby effectively avoiding the degradation of product quality due to the high temperature generated during the crushing process; in addition, the present utility model can also discharge the powdered material in time during the crushing process, thereby effectively avoiding the occurrence of over-grinding.
[0033] Furthermore, it also includes: a collecting tank 10; the collecting tank 10 is provided with a feed port 11 at the upper part of the side wall, an exhaust port 12 at the top, and a second discharge port at the bottom; the feed port 11 is connected to the first discharge port 8, the exhaust port 12 is provided with a filter cloth, and the second discharge port is provided with a valve. It should be understood that the collecting tank 10 can also be set to a cone with a larger top and a smaller bottom, so as to achieve cyclone separation, so as to avoid the filter cloth of the exhaust port 12 being blocked by powdery materials.
[0034] Furthermore, a windshield mechanism is provided in the hopper 6; the windshield mechanism includes: a radial shaft 13 installed on the hopper 6, and a windshield plate 14 hinged to the radial shaft 13; the hopper 6 is provided with a first stopper 15 above the windshield plate 14 to limit the windshield plate 14 rotating upward to a horizontal state; the hopper 6 is provided with a second stopper 16 below the windshield plate 14 to prevent the windshield plate 14 from rotating downward to a vertical state. It should be understood that when there is material in the hopper 6; under the action of its own gravity and the gravity of the material, the windshield plate 14 will rotate downward and rest on the second stopper 16; at this time, the hopper 6 is opened, and the material in the hopper 6 will gradually slide into the crushing chamber 4. When the materials in the hopper 6 are exhausted, the airflow in the crushing chamber 4 will blow the windshield 14 upward, and the windshield 14 will rotate upward to a horizontal state and abut against the bottom of the first stopper 15; at this time, the windshield 14 forms a seal for the hopper 6, which can effectively prevent the powdered materials in the crushing chamber 4 from escaping from the hopper 6. The windshield 14 is usually made of lightweight materials such as plastic. A plurality of mounting holes can be provided on the side wall of the hopper 6 to respectively mount the radial shaft 13, the first stopper 15, and the second stopper 16.
[0035] Furthermore, the housing 1 is provided with an annular groove for mounting the annular screen 3 on the inner wall facing the cover 2. It should be understood that the cover 2 can cooperate with the housing 1 to place the annular screen 3 in the annular groove.
[0036] Furthermore, the pulverizing device includes: a moving knife group driven by a motor 17, and a fixed knife group installed on the cover 2. It should be understood that the motor 17 is located outside the housing 1, and the drive shaft of the motor 17 penetrates from the housing 1 into the pulverizing chamber 4, and the drive shaft of the motor 17 is rotatably connected to the housing 1 through a bearing.
[0037] Furthermore, the movable knife group is installed on the first knife disc 18 ; the motor 17 drives the movable knife group to rotate by driving the first knife disc 18 to rotate; the movable knife group includes: a plurality of first knives 19 evenly distributed along the circumferential direction of the first knife disc 18 .
[0038] Furthermore, the extension direction of the first cutter 19 is perpendicular to the disc surface of the first cutter disc 18; the first cutter 19 is provided with a first connecting portion 20 at one end facing the first cutter disc 18, and the first connecting portion 20 is detachably connected to the first cutter disc 18 by bolts. It should be understood that the first cutter 19 and the first cutter disc 18 are detachably arranged, which is not only convenient for production and processing, but also conducive to reducing the subsequent maintenance cost.
[0039] Furthermore, the fixed knife group is installed on the second knife disc 21; the second knife disc 21 is detachably connected to the cover 2 through bolts; the fixed knife group includes: a plurality of second knives 22 evenly distributed along the circumferential direction of the second knife disc 21.
[0040] Furthermore, the extension direction of the second cutter 22 is perpendicular to the disc surface of the second cutter disc 21; the second cutter 22 is provided with a second connecting portion 23 at one end facing the second cutter disc 21, and the second connecting portion 23 is detachably connected to the second cutter disc 21 by bolts. It should be understood that the second cutter 22 and the second cutter disc 21 are detachably arranged, which is not only convenient for production and processing, but also conducive to reducing the subsequent maintenance cost.
[0041] Furthermore, the movable knife groups are provided in plurality and are distributed radially along the first knife disc 18; the fixed knife groups are provided in plurality and are distributed radially along the second knife disc 21; an annular first gap 24 is provided between adjacent movable knife groups for the fixed knife groups to pass through; an annular second gap 25 is provided between adjacent fixed knife groups for the movable knife groups to pass through.
[0042] Although specific embodiments of the present invention are described above, those skilled in the art should understand that various changes or modifications may be made to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are all within the scope of protection of the present invention.
Claims
1. A universal pulverizer, characterized in that: include: Housing (1); and A cover (2) for closing the housing (1); and An annular screen (3) disposed in the housing (1); in, The annular screen (3) divides the space inside the housing (1) into a central grinding chamber (4) and an annular chamber (5) surrounding the grinding chamber (4); The pulverizing chamber (4) is provided with a pulverizing device for pulverizing materials; A hopper (6) is installed on the outer side of the cover (2), and the lower end of the hopper (6) is connected to the crushing chamber (4); The left side of the housing (1) is connected to the centrifugal fan (7), and the right side is provided with a first discharge port (8); The air inlet (9) of the centrifugal fan (7) is provided with a filter cloth.
2. The universal pulverizer according to claim 1, characterized in that: Also included: a collection tank (10); The collecting tank (10) is provided with a feed port (11) at the upper part of the side wall, an air outlet (12) at the top, and a second discharge port at the bottom; The feed port (11) is in communication with the first discharge port (8), the exhaust port (12) is provided with a filter cloth, and the second discharge port is provided with a valve.
3. The universal pulverizer according to claim 1, characterized in that: The hopper (6) is provided with a wind shielding mechanism; The wind shield mechanism comprises: a radial shaft (13) mounted on the hopper (6), and a wind shield plate (14) hinged to the radial shaft (13); The hopper (6) is provided with a first limiting member (15) above the windshield (14) to limit the windshield (14) when it rotates upward to a horizontal state; The hopper (6) is provided with a second limiting member (16) below the wind shield (14) to prevent the wind shield (14) from rotating downward to a vertical state.
4. The universal pulverizer according to claim 1, characterized in that: The housing (1) is provided with an annular groove on the inner wall facing the sealing cover (2) for mounting the annular screen (3).
5. The universal pulverizer according to any one of claims 1 to 4, characterized in that: The pulverizing device comprises: a moving knife group driven by a motor (17) and a fixed knife group installed on the cover (2).
6. The universal pulverizer according to claim 5, characterized in that: The movable knife group is mounted on a first knife disc (18); the motor (17) drives the first knife disc (18) to rotate, thereby driving the movable knife group to rotate; The movable knife assembly comprises: a plurality of first knives (19) evenly distributed along the circumferential direction of the first knife disc (18).
7. The universal pulverizer according to claim 6, characterized in that: The first cutter (19) extends in a direction perpendicular to the disc surface of the first cutter disc (18); The first cutter (19) is provided with a first connecting portion (20) at one end facing the first cutter disc (18), and the first connecting portion (20) is detachably connected to the first cutter disc (18) via bolts.
8. The universal pulverizer according to claim 6, characterized in that: The fixed blade assembly is mounted on a second blade disc (21); the second blade disc (21) is detachably connected to the cover (2) via bolts; The fixed knife assembly comprises: a plurality of second knives (22) evenly distributed along the circumferential direction of the second knife disc (21).
9. The universal pulverizer according to claim 8, characterized in that: The extension direction of the second cutter (22) is perpendicular to the disc surface of the second cutter disc (21); The second cutter (22) is provided with a second connecting portion (23) at one end facing the second cutter disc (21), and the second connecting portion (23) is detachably connected to the second cutter disc (21) via bolts.
10. The universal pulverizer according to claim 8, characterized in that: The movable knife groups are provided in plurality and are distributed along the radial direction of the first knife disc (18); The fixed knife groups are provided in plurality and distributed along the radial direction of the second knife disc (21); An annular first gap (24) is provided between adjacent moving knife groups to allow the stationary knife groups to pass through; An annular second gap (25) is provided between adjacent fixed knife groups to allow the moving knife group to pass through.