A multi-stage series comminution device

Abstract

This application relates to the field of pulverization technology, specifically disclosing a multi-stage cascade pulverization device, comprising: a first pulverizer; a second pulverizer, wherein a first pipe connects the discharge port of the first pulverizer and the inlet of the second pulverizer. Compared with the prior art, this design effectively avoids the inefficiency caused by the material circulating and pulverizing within a single pulverizer, while ensuring the uniformity and consistency of the pulverized material. Through multi-stage pulverization, the stringent particle size distribution requirements of materials such as yeast powder can be better met, improving the process efficiency of subsequent processing.

Description

Technical Field

[0001] This application relates to the field of crushing technology, and in particular to a multi-stage series crushing device. Background Technology

[0002] Yeast, as an indispensable bioactive raw material in the modern food industry, plays a core functional role in the production of baked goods (bread, pastries), fermented foods (alcoholic beverages, soy sauce, pickles), and nutritional supplements (yeast extracts, β-glucan preparations). Its use often requires pulverizing blocky or granular raw materials into uniform powders of 80-200 mesh (180-75μm) to improve the efficiency of subsequent processing.

[0003] Patent document CN211586845U discloses a yeast pulverizing device. By installing an infrared heating tube at the top of the pulverizing chamber and setting a filter screen at the bottom, it solves the problem that the moisture in the yeast powder causes some small yeast powder particles to clump together, making them difficult to pulverize. This results in small yeast powder particles being mixed into the pulverized yeast powder, causing a decline in work quality. It has certain positive significance, but it also has certain drawbacks. For example, during the pulverizing process, part of the pulverized material will be filtered through the filter screen to meet the usage requirements, while another part will remain above the filter screen. The material below the filter screen is stored in the storage bin and can eventually be removed by pulling out the drawer. However, the material above the filter screen cannot be removed or pulverized again, thus affecting the normal operation of the pulverizing process. Utility Model Content

[0004] The purpose of this application is to provide a multi-stage series crushing device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution of this application is as follows: A multi-stage series crushing device, comprising: First pulverizer; The second crusher is connected by a first pipe between the discharge port of the first crusher and the feed port of the second crusher.

[0006] Furthermore, a vacuum pump is provided at one end of the first pipe that connects to the second crusher.

[0007] Furthermore, the first pipe is provided with a filter chamber, and the filter chamber is provided with a filter screen. The filter screen divides the filter screen into a coarse material chamber located above and a fine material chamber located below. A second pipe is connected between the outlet of the coarse material chamber and the inlet of the first crusher. The inlet of the coarse material chamber is connected to the upstream section of the first pipe, and the outlet of the fine material chamber is connected to the downstream section of the first pipe.

[0008] Furthermore, the filter screen is inclined, and the outlet of the coarse material chamber is located on the side wall of the filter screen that is connected to the filter chamber on the relatively lower side.

[0009] Furthermore, the lower edge of the filter screen is hinged to the inner wall of the filter chamber, and the upper edge extends out of the filter chamber through a slot provided on the filter chamber. A spring is provided between the filter screen and the slot. A vibration motor is provided on a section of the filter screen located outside the filter chamber.

[0010] Furthermore, there are multiple springs, with some springs located above the filter screen and connected to the top wall of the slot, and other springs located below the filter screen and connected to the bottom wall of the slot.

[0011] Furthermore, the height of the first pulverizer is higher than the height of the second pulverizer.

[0012] Furthermore, an installation platform is provided below the first crusher. The installation platform is provided with a plurality of studs. A support plate is fitted on the studs. An upper nut and a lower nut are screwed onto the studs. The upper nut and the lower nut are respectively located on the upper and lower sides of the support plate.

[0013] This application discloses a multi-stage cascaded grinding device, comprising a first grinder and a second grinder connected in series via a first pipe. The discharge port of the first grinder is directly connected to the feed port of the second grinder. This allows materials, after initial grinding in the first grinder, to directly enter the second grinder through the first pipe for further grinding, forming a multi-stage grinding process. Compared to existing technologies, this design effectively avoids the inefficiency caused by material circulating and grinding within a single grinder, while ensuring the uniformity and consistency of material grinding. Through multi-stage grinding, the stringent particle size distribution requirements of materials such as yeast powder can be better met, improving the efficiency of subsequent processing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the overall structure of this application from another angle; Figure 3 This is a partially enlarged schematic diagram of the slot location in this application; Figure 4 This is a cross-sectional view of the front and rear sections of the filter chamber in this application; Figure 5 These are cross-sectional views of the left and right sections of the filter compartment in this application; Figure 6 This is a partially enlarged schematic diagram of the support plate in this application; Figure 7 This is a partially enlarged schematic diagram of the support plate in this application.

[0015] In the picture: 1. First crusher; 2. Second crusher; 3. First pipe; 4. Second pipe; 5. Filter chamber; 50. Coarse material chamber; 51. Fine material chamber; 6. Mounting platform; 60. Support plate; 61. Stud; 62. Upper nut; 63. Lower nut; 7. Filter screen; 70. Spring; 71. Slot. Detailed Implementation

[0016] The present application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present application, and therefore only show the components relevant to the present application.

[0017] like Figure 1-7 As shown, this multi-stage series crushing device mainly includes a first crusher 1 and a second crusher 2, which are connected in series through a first pipe 3. The discharge port of the first crusher 1 is directly connected to the feed port of the second crusher 2. This allows the material to be initially crushed in the first crusher 1 and then directly enter the second crusher 2 through the first pipe 3 for further crushing, forming a multi-stage crushing process.

[0018] Compared to existing technologies, this design effectively avoids the inefficiency caused by circulating materials within a single grinder, while ensuring the uniformity and consistency of material grinding. Through multi-stage grinding, it better meets the stringent particle size distribution requirements of materials such as yeast powder, improving the efficiency of subsequent processing.

[0019] In some further embodiments, a vacuum pump is added to the end of the first pipe 3 that connects to the second crusher 2. The vacuum pump creates a negative pressure environment within the first pipe 3, thereby accelerating the material conveying process from the first crusher 1 to the second crusher 2. By installing a vacuum pump, not only is the material conveying efficiency improved and material residue reduced within the pipe, but the negative pressure also further promotes material dispersion, which is beneficial for subsequent crushing processes. Simultaneously, the introduction of the vacuum pump enhances the automation level of the device, reducing the need for manual intervention.

[0020] In other embodiments, a vacuum pump can be replaced by an exhaust fan.

[0021] In some further embodiments, a filter chamber 5 is provided on the first pipe 3, and a filter screen 7 is provided in the filter chamber 5. The filter screen 7 divides the filter chamber 5 into a coarse material chamber 50 and a fine material chamber 51. A second pipe 4 connects the outlet of the coarse material chamber 50 to the feed inlet of the first crusher 1, so that materials that do not meet the fineness requirements can be returned to the first crusher 1 for further crushing. This solves the problem in the prior art that materials above the filter screen cannot be discharged and re-crushed, ensuring the continuity and efficiency of the crushing operation. At the same time, the filter screen 7 also plays a role in pre-screening the materials, reducing the burden on the second crusher 2 and improving the overall crushing efficiency.

[0022] The feed inlet of the first crusher 1 can be equipped with a feed pipe. In practice, the second pipe 4 can be directly connected to the feed pipe. A vacuum pump or a blower can also be installed at the connection point.

[0023] The upstream section of the first pipeline 3 is the section connected to the first crusher 1, and the downstream section is the section connected to the second crusher 2.

[0024] In some further embodiments, the filter screen 7 is tilted, and the outlet of the coarse material chamber 50 is located on the side wall of the filter screen 7 connected to the filter chamber 5 on the relatively lower side. The tilted filter screen 7 allows the material to flow naturally to the outlet of the coarse material chamber 50 under the action of gravity, reducing the accumulation and clogging of material on the filter screen 7. At the same time, this design also facilitates the centralized collection and return of coarse material, improving the practicality and reliability of the device.

[0025] In some further embodiments, the lower edge of the filter screen 7 is hinged to the inner wall of the filter chamber 5, and the upper edge extends out of the filter chamber 5 through a slot 71 provided on the filter chamber 5. A spring 70 is provided between the filter screen 7 and the slot 71. A vibration motor is provided on a section of the filter screen 7 located outside the filter chamber 5.

[0026] Through its hinged design, the filter screen 7 vibrates under the drive of the vibrating motor, thereby accelerating the passage speed of materials on the filter screen 7 and effectively preventing material blockage. Simultaneously, the spring 70 provides cushioning and support, ensuring the stability and durability of the filter screen 7 during vibration. This design not only improves filtration efficiency but also reduces the frequency and difficulty of manually cleaning the filter screen 7.

[0027] The hinge between the filter screen 7 and the filter chamber 5 can be achieved by a pin; the vibration motor can be connected to the filter screen 7 by bolts and nuts.

[0028] The slot 71 is provided through the wall of the filter chamber 5 to allow the filter screen 7 to extend out.

[0029] In other embodiments, a flexible cloth is provided on the outer wall of the corresponding slot 71 in the filter chamber 5. The flexible cloth is used to seal the gap between the filter screen 7 and the slot 71 to prevent material leakage.

[0030] In some further embodiments, multiple springs 70 are arranged between the filter screen 7 and the slot 71, respectively located above and below the filter screen 7. Through the synergistic action of the upper and lower springs 70, the filter screen 7 can generate a more uniform and stable vibration amplitude during vibration, thereby improving filtration efficiency and material throughput speed. Simultaneously, this design also enhances the fatigue resistance of the filter screen 7, extending its service life.

[0031] One end of the spring 70 located above the filter screen 7 is connected to the upper wall of the filter screen 7, and the other end is connected to the top wall of the slot 71; one end of the spring 70 located below the filter screen 7 is connected to the lower wall of the filter screen 7, and the other end is connected to the bottom wall of the slot 71.

[0032] In some further embodiments, the height of the first crusher 1 is set to be higher than that of the second crusher 2. Through the height difference design, after the material is initially crushed by the first crusher 1, the gravity effect when the material flows to the second crusher 2 can be reduced, thereby reducing energy consumption and mechanical wear during the conveying process.

[0033] In some further embodiments, an installation platform 6 is provided below the first crusher 1. The installation platform 6 is provided with a plurality of studs 61. A support plate 60 is fitted on the studs 61. An upper nut 62 and a lower nut 63 are screwed on the studs 61. The upper nut 62 and the lower nut 63 are respectively located on the upper and lower sides of the support plate 60.

[0034] A mounting platform 6 is installed below the first crusher 1. The height of the first crusher 1 is adjustable via a combination of studs 61, support plates 60, upper nuts 62, and lower nuts 63. By adjusting the positions of the upper nuts 62 and lower nuts 63 on the studs 61, the height of the support plate 60 can be flexibly adjusted, thereby achieving precise control over the height of the first crusher 1. This design not only improves the flexibility and adaptability of the device but also facilitates maintenance and repair. Simultaneously, the installation platform 6 enhances the stability and safety of the device, ensuring the smooth operation of the production process.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A multi-stage series crushing device, characterized in that, include: First crusher (1); The second crusher (2) has a first pipe (3) connected between the discharge port of the first crusher (1) and the inlet of the second crusher (2). The first pipe (3) is provided with a filter chamber (5), and the filter chamber (5) is provided with a filter screen (7). The filter screen (7) divides the filter screen (7) into a coarse material chamber (50) located above and a fine material chamber (51) located below. A second pipe (4) is connected between the outlet of the coarse material chamber (50) and the inlet of the first crusher (1). The inlet of the coarse material chamber (50) is connected to the upstream section of the first pipe (3), and the outlet of the fine material chamber (51) is connected to the downstream section of the first pipe (3).

2. The multi-stage cascade crushing device according to claim 1, characterized in that, A vacuum pump is provided at one end of the first pipe (3) that connects to the second crusher (2).

3. The multi-stage series crushing device according to claim 1, characterized in that, The filter screen (7) is inclined, and the outlet of the coarse material chamber (50) is located on the side wall of the filter screen (7) connected to the filter chamber (5) on the relatively lower side.

4. The multi-stage series crushing device according to claim 3, characterized in that, The lower edge of the filter screen (7) is hinged to the inner wall of the filter chamber (5), and the upper edge extends out of the filter chamber (5) through a slot (71) provided on the filter chamber (5). A spring (70) is provided between the filter screen (7) and the slot (71). A vibration motor is provided on a section of the filter screen (7) located outside the filter chamber (5).

5. The multi-stage cascade crushing device according to claim 4, characterized in that, There are multiple springs (70), some of which are located above the filter screen (7) and connected to the top wall of the slot (71), while others are located below the filter screen (7) and connected to the bottom wall of the slot (71).

6. The multi-stage series crushing device according to claim 1, characterized in that, The height of the first crusher (1) is higher than the height of the second crusher (2).

7. The multi-stage series crushing device according to claim 6, characterized in that, The first crusher (1) is provided with an installation platform (6) below it. The installation platform (6) is provided with a plurality of studs (61). A support plate (60) is fitted on the studs (61). An upper nut (62) and a lower nut (63) are screwed on the studs (61). The upper nut (62) and the lower nut (63) are located on the upper and lower sides of the support plate (60), respectively.

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