A high-efficiency ultrafine grinding device

Abstract

This utility model discloses a high-efficiency ultrafine pulverizing device, belonging to the technical field of pulverizing devices. It includes a support base with a high-pressure blower connected to its top. An air supply pipe is connected to one side of the high-pressure blower. An integrated dust removal mechanism includes a shell whose top is connected to one end of the air supply pipe. Multiple filter bags are installed inside the shell, and multiple air jet pipes are installed above the filter bags. A pulse controller is installed on one side of the shell. The ultrafine pulverizing mechanism includes a pulverizer installed on one side of the shell. An anti-backflow device is connected to the bottom of the pulverizer, and a collector is connected to the bottom of the anti-backflow device. In this utility model, the integrated dust removal mechanism reduces the pipe length and the number of bends, lowering the air resistance within the device. The ultrafine pulverizing mechanism also prevents already pulverized feed from flowing back into the pulverizer, causing over-pulverization and ensuring the fineness of the product.

Description

Technical Field

[0001] This utility model belongs to the technical field of pulverizing devices, and in particular relates to a high-efficiency ultrafine pulverizing device. Background Technology

[0002] Ultrafine grinding refers to the process of breaking down solid particles larger than 3 mm into 10-25 micrometers by using mechanical or hydrodynamic methods to overcome the internal cohesive forces of solids. It mainly involves crushing materials by impacting them with high-speed rotating blades, hammers, or grinding wheels, and using the shearing force generated by the tiny gap between the stator and rotor or supersonic airflow to drive the material to collide. Ultrafine grinding can improve material utilization, improve material flowability, and enhance material homogeneity. It is mainly used in the fields of medicine, food, and chemical industry.

[0003] Ductwork and elbows are essential connecting components of ultrafine grinding systems. However, the presence of ductwork and elbows can cause varying degrees of internal air resistance in ultrafine grinding systems. The formation of internal air resistance will affect the hourly output to varying degrees. In ultrafine grinding systems, internal air resistance and internal resistance of the equipment will reduce the air volume and air pressure at the air inlet of the ultrafine grinder to a certain extent. This will prevent the material that has been ground to the required fineness from being extracted from the grinding chamber of the ultrafine grinder in time, resulting in over-grinding of the feed and thus reducing the hourly output of the system to varying degrees. Utility Model Content

[0004] The purpose of this invention is to solve the problem that traditional ultrafine pulverizing systems consist of two types of dust collectors and have long ducts with many bends, resulting in high air resistance within the device. Therefore, this invention proposes a high-efficiency ultrafine pulverizing device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a high-efficiency ultrafine pulverizing device, including a support base, a high-pressure blower connected to the top of the support base, an air supply pipe connected to one side of the high-pressure blower, and an integrated dust removal mechanism. The integrated dust removal mechanism includes a shell with its top connected to one end of the air supply pipe. Multiple filter bags are arranged inside the shell, and multiple air jet pipes are arranged above the filter bags. A pulse controller is arranged on one side of the shell, and the air jet pipes are configured to be controlled by the pulse controller. The air jet pipes remove dust adhering to the surface of the filter bags by spraying compressed air. The ultrafine pulverizing mechanism includes a pulverizer arranged on one side of the shell. The bottom of the pulverizer is connected to an anti-backflow device, and the bottom of the anti-backflow device is connected to a collector. The anti-backflow device is arranged between the pulverizer and the collector to prevent the pulverized feed from flowing back into the pulverizer, causing over-pulverization.

[0006] Preferably, the bottom of the outer shell is connected to an outlet pipe, an outer cylinder is provided outside the outlet pipe, a discharge valve is connected to the bottom of the outer cylinder, and a dust collector is connected to the bottom of the discharge valve.

[0007] Preferably, the pulverizer is provided with a mounting frame on its exterior, and the ultrafine pulverizing mechanism further includes two pressure regulating valves mounted on the outer wall of the mounting frame. The pressure regulating valves are connected to pressure pipes, and the two pressure pipes are respectively connected to the top and bottom of the pulverizer.

[0008] Preferably, the mounting frame is provided with a hopper at the top, a material pipe is connected to the bottom of the hopper, one end of the material pipe is connected to a venturi tube, and the bottom end of the venturi tube is connected to a pressure pipe.

[0009] Preferably, a vibrator is fixedly mounted on the top of the mounting frame, and the top of the vibrator is in contact with the outer wall of the material pipe.

[0010] Preferably, the high-pressure blower is connected to an air inlet pipe at the top, and a motor is installed on one side of the high-pressure blower.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by setting an ultra-fine grinding mechanism, the feed is ultra-finely ground. At the same time, an anti-backflow device is set at the bottom of the grinder to prevent the ultra-finely ground feed in the collector from backflowing due to the airflow in the device, and to prevent the feed from re-entering the grinder and causing over-grinding, thus ensuring that the fineness of the product meets the requirements and ensuring the quality of the product.

[0013] 2. In this utility model, the integrated dust removal mechanism replaces the pulse dust collector and cyclone dust collector in the original ultrafine grinding system, reducing the number of dust removal devices and thus reducing the internal resistance of the equipment. At the same time, it reduces the length of the air duct and the number of bends, shortening the length of the entire air path and thus reducing the air resistance inside the duct. Under the premise that the objective factors affecting the hourly output of the ultrafine grinding system, such as feed formula structure, raw material moisture content, raw material oil content, raw material fiber content, coarse grinding fineness, and ultrafine grinding fineness, remain unchanged, the device can increase the hourly output of the ultrafine grinding system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a high-efficiency ultrafine pulverizing device proposed in this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of a high-efficiency ultrafine pulverizing device proposed in this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the integrated dust removal mechanism of a high-efficiency ultrafine pulverizing device proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of the ultrafine grinding mechanism of a high-efficiency ultrafine grinding device proposed in this utility model.

[0018] Legend: 1. Support base; 2. High-pressure blower; 3. Motor; 4. Inlet pipe; 5. Outlet pipe; 6. Integrated dust removal mechanism; 601. Outer shell; 602. Pulse controller; 603. Jet nozzle; 604. Filter bag; 605. Outlet pipe; 606. Outer cylinder; 607. Feed valve; 7. Dust collector; 8. Ultrafine pulverizing mechanism; 801. Venturi tube; 802. Pulverizer; 803. Pressure pipe; 804. Pressure regulating valve; 805. Anti-backflow device; 9. Collector; 10. Hopper; 11. Feed pipe; 12. Vibrator; 13. Mounting frame. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a high-efficiency ultrafine pulverizing device, including a support base 1, a high-pressure blower 2 connected to the top of the support base 1, an air supply pipe 5 connected to one side of the high-pressure blower 2, and an integrated dust removal mechanism 6. The integrated dust removal mechanism 6 includes a shell 601 whose top is connected to one end of the air supply pipe 5, multiple filter bags 604 are arranged inside the shell 601, multiple air jet pipes 603 are arranged above the filter bags 604, and a pulse controller 602 is arranged on one side of the shell 601. The air jet pipes 603 are configured to be controlled by the pulse controller. Controlled by 602, the jet pipe 603 removes dust adhering to the surface of the filter bag 604 by spraying compressed air. The ultrafine grinding mechanism 8 includes a grinder 802 disposed on one side of the housing 601. The bottom of the grinder 802 is connected to an anti-backflow device 805, and the bottom of the anti-backflow device 805 is connected to a collector 9. The anti-backflow device 805 is disposed between the grinder 802 and the collector 9 to prevent the ground feed from flowing back into the grinder 802 and causing over-grinding.

[0021] The bottom of the outer shell 601 is connected to an outlet pipe 605, and an outer cylinder 606 is provided outside the outlet pipe 605. The bottom of the outer cylinder 606 is connected to a discharge valve 607, and the bottom of the discharge valve 607 is connected to a dust collector 7.

[0022] The pulverizer 802 is provided with an external mounting frame 13. The ultrafine pulverizing mechanism 8 also includes two pressure regulating valves 804 installed on the outer wall of the mounting frame 13. The pressure regulating valves 804 are connected to pressure pipes 803. The two pressure pipes 803 are respectively connected to the top and bottom of the pulverizer 802.

[0023] The top of the mounting frame 13 is equipped with a hopper 10, and the bottom of the hopper 10 is connected to a material pipe 11. One end of the material pipe 11 is connected to a venturi tube 801, and the bottom end of the venturi tube 801 is connected to a pressure pipe 803.

[0024] A vibrator 12 is fixedly mounted on the top of the mounting bracket 13, and the top of the vibrator 12 is in contact with the outer wall of the material pipe 11.

[0025] Specifically, after the feed is placed into the hopper 10, it slides down the inner wall of the hopper 10 and enters the feed pipe 11 from the bottom of the hopper 10. The top of the vibrator 12 contacts the feed pipe 11, and the vibrator 12 continuously vibrates to transport the feed in the feed pipe 11 forward. At the same time, the vibrator 12 continuously vibrates the shell to prevent blockage inside the hopper 10. The feed enters the pressure pipe 803 through the venturi tube 801, and then enters the grinder 802 along the pressure pipe 803. The grinder 802 performs ultrafine grinding of the feed. During the grinding process, the speed at which the feed enters the grinder 802 is continuously adjusted by the pressure regulating valve 804. After ultrafine grinding, the feed falls from the bottom of the grinder 802 through the anti-backflow device into the collector 9. The anti-backflow device 805 has a cavity inside. When backflow occurs after grinding, the feed will stay in the cavity of the anti-backflow device to prevent the ground feed from re-entering the grinder 802, which would cause over-grinding of the feed and ensure the quality of the finished product.

[0026] It should be noted that the Chinese description of the Tube 801 above refers to a device based on Bernoulli's principle, mainly used for flow measurement, fluid control, and dust removal and purification. This part is well-known technology in the field and will not be elaborated here.

[0027] It should be noted that the pressure regulating valve 804 mentioned above is a flow regulation and control device. When the flow regulating valve 804 is used in the pipeline network, the flow rate can be directly set according to the design. This part is well-known technology in the field and will not be described in detail here.

[0028] The high-pressure blower 2 has an air inlet pipe 4 connected to its top, and a motor 3 is installed on one side of the high-pressure blower 2.

[0029] Specifically, motor 3 drives high-pressure blower 2 to operate. The operation of high-pressure blower 2 generates air volume and air pressure, causing the ultra-finely pulverized feed to be drawn away with the air into the integrated dust removal equipment. The feed enters the outer shell 601 through a pipe on one side of the outer shell 601. The airflow guides the feed from the outlet pipe 605 into the outer cylinder 606. The feed spirals downward along the wall of the outer cylinder 606. The larger particles in the feed pass through the feed valve 607 and enter the dust collector 7. The airflow flows back upward from the middle of the outer cylinder 606, carrying the fine feed particles back to the outer shell 601. The filter bag 604 has a small pore size. When the airflow passes through the filter bag 604, it intercepts the fine feed particles and adheres to the surface of the filter bag 604. When the conveyor belt needs to be cleaned, the pulse controller 602 is activated. The pulse controller 602 controls the jet pipe 603 to spray compressed air to remove the feed dust adhering to the surface of the filter bag 604.

[0030] It should be noted that the selection of high-pressure fan 2 and motor 3 in the above description is based on the requirements. This part is well-known technology in the field and will not be elaborated here.

[0031] It should be noted that the pulse controller 602 mentioned above is the main control device for the pulse bag filter dust collector's pulse jet cleaning. Its output signal controls the electromagnetic pulse valve to perform cyclic cleaning of the filter bag 604 to ensure the dust collector's processing capacity and dust collection efficiency. This part is well-known technology in the field and will not be described in detail here.

[0032] Working principle: During use, the operator puts the feed to be crushed into the hopper 10, then starts the vibrator 12, and then starts the ultrafine crushing mechanism 8 to crush the feed. A portion of the crushed feed enters the collector 9, and the operator recovers the feed in the collector 9. At the same time as starting the vibrator 12, the operator starts the motor 3 and the high-pressure blower 2. The feed with smaller particle size is sucked into the integrated dust removal mechanism 6. After being screened by the device, a portion of the small-particle feed enters the dust collector 7, and the operator recovers the small-particle feed. After running for a period of time, the operator starts the pulse controller 602 to clean the filter bag 604 to prevent the filter bag 604 from clogging.

[0033] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency ultrafine pulverizing device, characterized in that, include: Support base (1), the top of the support base (1) is connected to a high-pressure blower (2), and one side of the high-pressure blower (2) is connected to an air supply pipe (5); The integrated dust removal mechanism (6) includes a housing (601) whose top is connected to one end of the air supply pipe (5). Multiple filter bags (604) are arranged inside the housing (601). Multiple air jet pipes (603) are arranged above the filter bags (604). A pulse controller (602) is arranged on one side of the housing (601). The air jet pipes (603) are configured to be controlled by the pulse controller (602). The air jet pipes (603) remove the dust attached to the surface of the filter bags (604) by spraying compressed air. Among them, the ultrafine grinding mechanism (8) includes a grinder (802) disposed on one side of the outer shell (601). The bottom of the grinder (802) is connected to an anti-backflow device (805), and the bottom of the anti-backflow device (805) is connected to a collector (9). The anti-backflow device (805) is disposed between the grinder (802) and the collector (9) to prevent the already ground feed from flowing back into the grinder (802) and causing over-grinding.

2. The high-efficiency ultrafine pulverizing device according to claim 1, characterized in that, The bottom of the outer shell (601) is connected to an outlet pipe (605), and an outer cylinder (606) is provided outside the outlet pipe (605). The bottom of the outer cylinder (606) is connected to a discharge valve (607), and the bottom of the discharge valve (607) is connected to a dust collector (7).

3. The high-efficiency ultrafine pulverizing device according to claim 1, characterized in that, The pulverizer (802) is provided with an external mounting frame (13). The ultrafine pulverizing mechanism (8) also includes two pressure regulating valves (804) installed on the outer wall of the mounting frame (13). The pressure regulating valves (804) are connected to pressure pipes (803). The two pressure pipes (803) are respectively connected to the top and bottom of the pulverizer (802).

4. The high-efficiency ultrafine pulverizing device according to claim 3, characterized in that, The mounting bracket (13) is provided with a hopper (10) at the top, and a material pipe (11) is connected to the bottom of the hopper (10). One end of the material pipe (11) is connected to a venturi tube (801), and the bottom end of the venturi tube (801) is connected to a pressure tube (803).

5. The high-efficiency ultrafine pulverizing device according to claim 4, characterized in that, A vibrator (12) is fixedly installed on the top of the mounting bracket (13), and the top of the vibrator (12) is in contact with the outer wall of the material pipe (11).

6. The high-efficiency ultrafine pulverizing device according to claim 1, characterized in that, The high-pressure blower (2) is connected to an air inlet pipe (4) at the top, and a motor (3) is installed on one side of the high-pressure blower (2).

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