Grinding head free of uncovering cleaning

Abstract

The utility model discloses a grinding head capable of being cleaned without opening a cover, which comprises a grinding head body and further comprises an annular cleaning passage, a water inlet end pipeline of the annular cleaning passage is connected from a grinding cover of the grinding head body and is communicated with the outside through a cleaning water main valve, and the water inlet end pipeline of the annular cleaning passage is communicated with an annular shower head which is annularly distributed outside a grinding wheel to the inside of a pulping machine. The annular shower head is suspended close to the lower part of the grinding cover; water outlet holes are formed in the periphery of the annular shower head; the grinding water inlet pipeline is used for controlling the outside to be communicated with a feeding channel of the grinding head body through a grinding water main valve; the water inlet pipeline is communicated with the annular cleaning passage and the grinding water inlet pipeline from the outside. The grinding head capable of being cleaned without opening the cover is provided aiming at the pain points in the prior art, and the technical bottleneck in the cleaning process of a traditional grinding head is effectively solved through the multi-path collaborative water path and the annular spraying design.

Description

Technical Field

[0001] This utility model relates to grinding heads, and more particularly to a grinding head that can be cleaned without opening the cover. Background Technology

[0002] During long-term use, the grinding heads of traditional pulp mills tend to accumulate residues of ground materials (such as beans and grains) in the inner cavity, separation basket, and slag collector, requiring frequent disassembly and manual cleaning. For example, Chinese invention patent application number CN202110828543.2 discloses a grinding head for a pulp mill, wherein the grinding head body includes a grinding head shell 1, a feeding channel 11 is provided at the upper center of the grinding head shell 1, the feeding channel 11 extends downward into the filter screen support 9 and a grinding wheel seat 12 is connected to the lower end of the feeding channel 11, the shaft of the vertical shaft 71 located above the horizontal support plate 72 passes upward through the filter screen support 9 and is connected to the bottom of the filter screen support 9; the lower grinding wheel 10 is limited by a positioning pin 15 set in the bottom of the filter screen support 9, and the filter screen support 9 is limited by a positioning pin 14 set on the horizontal support plate. Although the grinding efficiency is improved by the combination of the grinding wheel and the filter screen support, the cleaning process still requires the disassembly of the grinding cover. Frequent disassembly and assembly of the grinding cover increases manual time and affects the continuous operation efficiency of the equipment. Repeated opening of the cover can easily lead to wear or deformation of the seals, causing the risk of water leakage or pollution.

[0003] Furthermore, industries such as food processing and pharmaceuticals have increasingly stringent requirements for equipment cleanliness, necessitating the prevention of cross-contamination. However, existing grinding head structures struggle to meet the demands for efficient, enclosed cleaning. While some improvements attempt to introduce internal flushing pipelines, shortcomings remain, including fragmented water channels, complex control systems, or insufficient cleaning coverage. Therefore, there is an urgent need for an integrated solution that enables comprehensive cleaning of the grinding head both inside and out without opening the cover, thereby improving cleaning efficiency, reducing maintenance costs, and adapting to high-hygiene production environments. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this invention provides a grinding head that requires no opening for cleaning.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is: a grinding head that does not require opening the cover for cleaning, including a grinding head body, and further including:

[0006] The annular cleaning passage has its inlet pipe connected to the grinding head cover and controlled by the main cleaning water valve to connect to the outside. The inlet pipe of the annular cleaning passage connects to the grinding mill and an annular shower head that is arranged around the grinding wheel. The annular shower head is suspended below the grinding head and has water outlet holes on its circumference.

[0007] The grinding water inlet pipeline controls the feed channel connecting the grinding head body to the outside through the grinding water main valve;

[0008] The water inlet pipe connects to the external ring-shaped cleaning passage and the grinding water inlet pipe.

[0009] Furthermore, it also includes a slag collector cleaning pipeline, which is connected to a water inlet pipeline, and an inlet valve is installed on the slag collector cleaning pipeline.

[0010] Furthermore, the slag collector cleaning pipeline is a flexible hose, and when cleaning the slag collector, the outlet of the flexible hose is directed toward the inner cavity of the slag collector of the grinding head body.

[0011] Furthermore, the water inlet pipe is connected to the annular cleaning passage, the grinding water inlet pipe, and the slag collector cleaning pipe via a four-way connector.

[0012] Furthermore, the water inlet pipe of the annular cleaning passage is vertically embedded in the horizontal end cover of the grinding cover, and the part of the water inlet pipe extending out of the horizontal end cover is equipped with the main cleaning water valve.

[0013] Furthermore, the annular shower head has a hollow pipe in the shape of a circle, and the hollow pipe coincides with the central axis of the grinding wheel. The inner diameter of the annular shower head is larger than the outer diameter of the grinding wheel.

[0014] Furthermore, the outer diameter of the annular shower head is smaller than the maximum outer diameter of the separation basket in the grinding head body, and the suspension position of the annular shower head is not lower than the upper edge of the separation basket.

[0015] Furthermore, the grinding pulp inlet pipe passes through the side wall of the feed channel and connects to the interior of the grinding head body.

[0016] This utility model discloses a grinding head that can be cleaned without opening the cover. The design integrates a ring-shaped sprayer, a multi-way valve, and a four-way connector to achieve simultaneous and efficient cleaning of the inside and outside of the grinding head. It can thoroughly clean key areas such as the grinding chamber, separation basket, and slag collector without disassembling the grinding cover, significantly reducing manual disassembly time and operational risks. It avoids wear of seals or assembly errors caused by frequent opening of the cover, while maintaining the equipment's airtightness to prevent water splashing or external contamination during the cleaning process. It balances hygiene and safety with equipment durability, greatly improves maintenance efficiency, and reduces long-term operating costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a partial structure of the present invention. Figure 1 .

[0018] Figure 2 This is a schematic diagram of a partial structure of the present invention. Figure 2 .

[0019] Figure 3 This is a schematic diagram of a partial structure of the present invention. Figure 3 .

[0020] Figure 4 This is a schematic diagram of a partial structure of the present invention. Figure 4 .

[0021] In the diagram: 1. Grinding cover; 2. Feed channel; 3. Grinding wheel; 4. Separation basket; 5. Slag collector; 11. Main cleaning water valve; 21. Main grinding water valve; 51. Inlet valve; 100. Circular cleaning passage; 101. Inlet water pipe; 102. Circular shower head; 200. Grinding water inlet pipe; 300. Inlet water pipe; 400. Four-way connector; 500. Slag collector cleaning pipe. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 and Figure 2 The grinding head for cleaning without opening the cover, as shown in this patent, includes a grinding head body. An annular cleaning passage 100 is connected to the grinding cover 1 of the grinding head body. The water inlet pipe 101 of the annular cleaning passage 100 is connected to the grinding cover of the grinding head body and connected to the outside via a main cleaning water valve 11. Specifically, the water inlet pipe of the annular cleaning passage is vertically embedded in the horizontal end cover of the grinding cover. In this embodiment, a flange and bolts are used to fasten the vertical pipe to the surface of the end cover. In other embodiments, the specific method of vertical embedding includes pre-drilling vertical holes in the horizontal end cover of the grinding cover and directly inserting and fixing the water inlet pipe, or using threaded connections to match and lock the pipe with the reserved internal threads of the end cover. However, it is necessary to ensure that the water inlet pipe is stably connected vertically and sealed to prevent leakage. The portion of the water inlet pipe extending out of the horizontal end cover is fitted with the main cleaning water valve 11. The main cleaning water valve 11 controls the connection to the water inlet pipe 300, which provides water from the outside to the inside. The inlet pipe 101 of the annular cleaning passage 100 connects to an annular spray nozzle 102 that is arranged around the grinding wheel inside the grinder. The annular spray nozzle 102 is suspended below the grinding cover 1, and water outlet holes are opened on the periphery of the annular spray nozzle 102. The annular spray nozzle is a hollow pipe in the shape of a circle. The hollow pipe coincides with the central axis of the grinding wheel to ensure that the spray water flow evenly covers the outer surface of the grinding wheel and avoids the cleaning dead corner caused by eccentricity. The inner diameter of the annular spray nozzle 102 is larger than the outer diameter of the grinding wheel 3, so that the annular spray nozzle surrounds the grinding wheel and maintains a distance. The outer diameter of the annular spray nozzle is smaller than the maximum outer diameter of the separation basket in the grinding head body. The suspension position of the annular spray nozzle 120 is not lower than the upper edge of the separation basket 4 to prevent the spray nozzle from interfering with the separation basket structure, and can directly rinse the separation basket area from above. The overall function is to achieve efficient cleaning of all areas including the internal wall of the grinding head body, the outer periphery of the grinding head and the separation basket without removing the cover through precise spatial layout, while avoiding the risk of structural conflict.

[0024] Figure 3 and Figure 4The water inlet pipe 300 shown above is specifically connected to the annular cleaning passage 100 through one of the four-way connectors 400, and connected to the grinding water inlet pipe 200 and the slag collector cleaning pipe 500 through the other two outputs. The water inlet pipe 300 serves as a unified water source supply end. The grinding water inlet pipe 200 controls the water inlet pipe 300 to connect to the feed channel 2 of the grinding head body through the grinding water main valve 21. Specifically, the grinding water inlet pipe 200 passes through the side wall of the feed channel and connects to the inside of the grinding head body. When the grinding water main valve 21 is opened, the grinding water inlet pipe 200 receives water from the water inlet pipe 300 and sends it into the grinding head body through the feed channel to provide the necessary water volume for grinding. The upper opening of the feed channel is the material inlet. During the cleaning process, in order to avoid splashing during the cleaning process, the material inlet can be blocked by a plug or baffle. It should be understood that the water inlet passage (water inlet pipe - grinding water inlet pipe - feed channel) can also provide the water volume for the cleaning process. Therefore, when the grinding work is completed and the inside of the grinding head body needs to be cleaned, the grinding water main valve 21 can be opened simultaneously, or the grinding water main valve 21 can be closed. The aforementioned water inlet pipe 300 is connected to the slag collector cleaning pipe 500 via a four-way connector 400. Specifically, an inlet valve 51 is installed on the slag collector cleaning pipe, and the slag collector cleaning pipe is a flexible hose. When cleaning the slag collector, the outlet of the flexible hose faces the inner cavity of the slag collector 5 of the grinding head body.

[0025] This patent uses a four-way connector 400 to coordinate water distribution to form a grinding water inlet mode and a cover-free cleaning mode, as follows: In the grinding water inlet mode, the main cleaning water valve 11 is closed, the annular cleaning passage 100 is closed, the slag collector cleaning pipeline valve is closed, and only the grinding water main valve 21 and the water inlet pipeline 300 are opened. The water flow is preferentially distributed to the grinding water inlet pipeline 200 through the four-way connector 400, and water is supplied to the inside of the grinding head through the feed channel 2 for raw material grinding. At the same time, the material inlet can be temporarily closed to prevent splashing. In the cover-free cleaning mode, the main cleaning water valve 11, the main grinding water valve 21, and the slag collector inlet valve are all fully open. The water inlet pipe 300 supplies water to three channels simultaneously through the four-way connector 400: the annular cleaning passage 100 drives the annular shower head 102 to clean the inside of the grinding head body; the grinding water inlet pipe 200 flushes the inside of the feed channel; and the flexible hose of the slag collector cleaning pipe can be manually adjusted to directionally flush the residue inside the slag collector cavity. The two modes achieve seamless switching between grinding and comprehensive cleaning through valve linkage, without the need to disassemble the grinding cover. The cover-free cleaning design integrates annular shower head, multi-way valves, and four-way connectors to achieve simultaneous and efficient cleaning of the inside and outside of the grinding head. It can thoroughly clean key areas such as the grinding chamber, separation basket, and slag collector without disassembling the grinding cover, significantly reducing manual disassembly time and operational risks. It avoids wear of seals or assembly errors caused by frequent cover opening, while maintaining the equipment's airtightness to prevent water splashing or external contamination during the cleaning process. It balances hygiene and safety with equipment durability, greatly improving maintenance efficiency and reducing long-term operating costs.

[0026] The above embodiments are not intended to limit the present invention. Unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention is not limited to the examples above. Changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the technical solution of the present invention are also within the protection scope of the present invention. Furthermore, the technical features involved in the different embodiments of the present application described above can be combined with each other as long as they do not conflict with each other.

Claims

1. A grinding head that requires no opening for cleaning, comprising a grinding head body, characterized in that, Also includes: The annular cleaning passage has its inlet pipe connected to the grinding head cover and controlled by the main cleaning water valve to connect to the outside. The inlet pipe of the annular cleaning passage connects to the grinding mill and an annular shower head that is arranged around the grinding wheel. The annular shower head is suspended below the grinding head and has water outlet holes on its circumference. The grinding water inlet pipeline controls the feed channel connecting the grinding head body to the outside through the grinding water main valve; The water inlet pipe connects to the external ring-shaped cleaning passage and the grinding water inlet pipe.

2. The uncapped washable grinding head of claim 1, wherein, It also includes a slag collector cleaning pipeline, which is connected to the water inlet pipeline and is equipped with a water inlet valve.

3. The uncapped washable grinding head of claim 2, wherein, The slag collector cleaning pipeline is a flexible hose, and when cleaning the slag collector, the outlet of the flexible hose is directed toward the inner cavity of the slag collector of the grinding head body.

4. The uncapped washable grinding head of claim 2, wherein: The water inlet pipe is connected to the annular cleaning passage, the grinding water inlet pipe, and the slag collector cleaning pipe via a four-way connector.

5. The uncapped cleaning abrasive head of claim 1 or 3, wherein: The water inlet pipe of the annular cleaning passage is vertically embedded in the horizontal end cover of the grinding cover, and the part of the water inlet pipe extending out of the horizontal end cover is equipped with the main cleaning water valve.

6. The uncapped washable grinding head of claim 5, wherein: The annular shower head is a hollow pipe in the shape of a circle. The hollow pipe coincides with the central axis of the grinding wheel, and the inner diameter of the annular shower head is larger than the outer diameter of the grinding wheel.

7. The uncapped washable grinding head of claim 6, wherein: The outer diameter of the annular shower head is smaller than the maximum outer diameter of the separation basket in the grinding head body, and the suspension position of the annular shower head is not lower than the upper edge of the separation basket.

8. The uncapped washable abrasive head of claim 5, wherein: The grinding slurry inlet pipe passes through the side wall of the feed channel and connects to the interior of the grinding head body.

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