A flour milling apparatus

By using a hinged dust baffle and torsion spring structure in the grinding equipment, combined with a servo motor-driven rotating shaft and crushing blades, the problem of dust dispersion during the crushing process is solved, achieving efficient crushing and environmental protection.

CN224573842UActive Publication Date: 2026-07-31DAYE FANGXING METALLURGY MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DAYE FANGXING METALLURGY MATERIAL CO LTD
Filing Date
2025-07-04
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing grinding equipment easily causes dust to scatter everywhere during the crushing process, polluting the environment and endangering the health of workers.

Method used

The dust baffle and torsion spring structure with hinged design, combined with the servo motor driven shaft and crushing blades, achieve dust blocking and efficient crushing during the crushing process. The crushing effect is further improved by the sealing door and serrated blades.

Benefits of technology

It effectively suppresses dust dispersion, improves crushing efficiency and effect, and reduces environmental pollution and health risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a grinding equipment, including a grinding mill. The grinding mill includes a frame and a crushing mechanism mounted on the frame. The crushing mechanism includes a grinding box mounted on the frame. A drive component is also mounted on the frame, and the drive component is connected to a rotating shaft. The rotating shaft is rotatably mounted inside the grinding box. Multiple crushing blades are mounted on the outer side of the rotating shaft. A filter is mounted inside the grinding box below the crushing blades. A dust baffle is hinged inside the grinding box above the crushing blades. This utility model can achieve thorough and efficient crushing of the material to be crushed through the action of the crushing blades and the filter. At the same time, the hinged dust baffle can effectively block the dust generated during crushing. The operation is more convenient and efficient, greatly reducing environmental pollution and harm to the health of workers.
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Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, and specifically to a grinding equipment. Background Technology

[0002] Limestone's main component is calcium carbonate. Lime and limestone are raw materials widely used in building materials and industry. Limestone can be directly processed into stone and burned into quicklime. Quicklime absorbs moisture or is mixed with water to become slaked lime, which can be called calcium hydroxide. Slaked lime is mixed into lime slurry, lime paste, etc., and used as coating materials and brick and tile adhesives. Utility Model Content

[0003] In view of this, the present invention provides a grinding equipment that can effectively block dust during the grinding process by means of a hinged dust baffle, thereby preventing dust from spreading and polluting the environment during the grinding process and also posing certain health risks to the workers.

[0004] To solve the above-mentioned technical problems, this utility model provides a grinding equipment, including a grinding mill. The grinding mill includes a frame and a crushing mechanism mounted on the frame. The crushing mechanism includes a grinding box mounted on the frame. A driving component is also mounted on the frame. The driving component is connected to a rotating shaft, which is rotatably mounted inside the grinding box. Multiple crushing blades are mounted on the outer side of the rotating shaft. A filter is mounted inside the grinding box below the crushing blades. A dust baffle is hinged inside the grinding box above the crushing blades. This utility model can achieve thorough and efficient crushing of the material to be crushed through the action of the crushing blades and the filter. At the same time, the hinged dust baffle can effectively block the dust generated during crushing. The operation is more convenient and efficient, greatly reducing environmental pollution and harm to the health of workers.

[0005] The dust baffle is hinged inside the grinding chamber by a torsion spring. The purpose of this is to seal the grinding chamber by the torque force of the torsion spring after feeding without affecting the feeding process, thereby preventing the dust from escaping during the grinding process.

[0006] The upper part of the grinding box is also equipped with a feeding hopper. This utility model can facilitate the smooth addition of materials by setting up the feeding hopper, which is more convenient.

[0007] The grinding chamber is equipped with a sealing door on the outside, and a serrated blade is installed inside the sealing door. This utility model can effectively seal the grinding chamber through the sealing door, and can also achieve efficient grinding and pulverizing of the materials in the grinding chamber by using the serrated blade in conjunction with the crushing blade.

[0008] The lower part of the grinding box located below the filter element is provided with a discharge hopper connected to it. This utility model can realize the discharge hopper so that the crushed material that meets the particle size requirements is filtered by the filter element and then discharged and collected.

[0009] The driving component is a servo motor, and the output shaft of the driving component is connected to the rotating shaft through a transmission belt and pulley. This invention can achieve efficient crushing of materials by rotating the output shaft of the driving component, which in turn drives the rotating shaft and the crushing blades on the outside of the rotating shaft to rotate through the transmission belt and pulley, thus greatly improving the crushing efficiency of materials.

[0010] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0011] 1. Effective dust suppression without affecting feeding: The dust baffle plate of this utility model can be set by means of torsion spring hinge. Under the impact of the material during feeding, the dust baffle plate is rotated to a suitable angle under the action of the torsion spring, which facilitates the smooth entry of the material. Moreover, after feeding is completed, the torsion force of the torsion spring can push the dust baffle plate back to the state of sealing the feeding hopper, preventing the dust from escaping during the crushing process.

[0012] 2. Better grinding effect and higher efficiency: This utility model can effectively screen the crushed material by using the filter element set in the grinding box. It can ensure that the material that does not meet the crushing particle size requirements is blocked at the top of the filter element, and together with the rotating crushing blade, it can achieve a full, complete and efficient crushing operation.

[0013] 3. Multiple crushing processes greatly improve crushing effect and efficiency: This utility model can achieve further grinding and crushing of materials by using the serrated blades set on the inside of the sealed door in conjunction with the crushing blades, which greatly improves the crushing effect and efficiency of materials. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the grinding equipment of this utility model;

[0015] Figure 2 This is a top view of the grinding equipment of this utility model;

[0016] Figure 3 This is a structural schematic diagram of the grinding equipment of this utility model from another perspective;

[0017] Figure 4 This utility model Figure 3 Sectional view at point AA.

[0018] Explanation of reference numerals in the attached drawings: 100, grinding mill; 110, frame; 120, crushing mechanism; 121, grinding box; 122, drive component; 123, rotating shaft; 124, crushing blade; 125, dust baffle; 126, filter element; 200, feed hopper; 300, sealing door; 301, serrated blade; 400, discharge hopper. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0020] like Figure 1-4As shown: This embodiment provides a grinding equipment, including a grinding mill 100. The grinding mill 100 includes a frame 110 and a crushing mechanism 120 mounted on the frame 110. The crushing mechanism 120 includes a grinding chamber 121 mounted on the frame 110. The lower part of the grinding chamber 121 has an arc-shaped structure, and the grinding chamber 121 can be made of transparent tempered explosion-proof glass. This not only ensures its impact resistance but also allows the operator to easily and in real-time observe the grinding process inside the grinding chamber 121. The frame 110 is also equipped with a drive mechanism. The driving component 122 is connected to a rotating shaft 123. The rotating shaft 123 is rotatably mounted inside the grinding chamber 121. The driving component 122 is a servo motor, and its output shaft is connected to the rotating shaft 123 via a transmission belt and pulley. The rotating shaft 123 is connected to the side wall of the grinding chamber via a sealed bearing. The outer ring of the sealed bearing penetrates the side wall of the grinding chamber, and the inner ring of the sealed bearing is fixed to the rotating shaft 123, with the rotating shaft 123 penetrating through the inner ring of the sealed bearing. Multiple grinding blades 124 are provided on the outer side of the rotating shaft 123. A filter element 126 is installed inside the grinding chamber 121 and below the crushing blade 124. The filter element 126 is an arc-shaped steel plate filter screen, which is welded to the inner wall of the grinding chamber 121. A dust baffle 125 is hinged inside the grinding chamber 121 and above the crushing blade 124. A feed hopper 200 is also provided at the upper part of the grinding chamber 121. The feed hopper 200 has a structure where the upper opening is larger than the lower opening. This is to facilitate the formation of a certain slope, so as to facilitate the smooth sliding of materials into the grinding chamber 121. This utility model can... The rotation of the output shaft of the drive unit 122 drives the rotating shaft 123 and the crushing blade 124 on the outside of the rotating shaft 123 to rotate through the transmission belt and pulley, thereby achieving efficient crushing of materials and greatly improving the crushing efficiency. The feeding hopper 200 facilitates the smooth feeding of materials, and the hinged dust baffle 125 effectively blocks the dust generated during crushing. The operation is more convenient and efficient, greatly reducing environmental pollution and harm to the health of workers.

[0021] According to one embodiment of the present invention, such as Figure 1-4 As shown, the dust baffle 125 is hinged inside the grinding chamber 121 by a torsion spring. A sealing sleeve is provided at the lower part of the dust baffle 125. The sealing sleeve is made of non-slip and wear-resistant rubber material, which can ensure that the dust baffle 125 is tightly fitted to the inner wall of the grinding chamber 121. The dust baffle 125 is made of stainless steel plate that has undergone heat treatment. The purpose of this is to seal the grinding chamber 121 by the torque force of the torsion spring after feeding without affecting the feeding process, thereby preventing the dust from escaping during the grinding process.

[0022] According to another embodiment of the present invention, such as Figure 1 , Figure 2 and Figure 4 As shown, a sealing door 300 is provided on the outside of the grinding chamber 121. The sealing door 300 is fastened to the outer wall of the grinding chamber 121 by bolts. A sealing gasket is provided at the part of the sealing door 300 that contacts the grinding chamber 121. A serrated blade 301 is provided inside the sealing door 300. The serrated blade 301 cooperates with the crushing blade 124. The axis of the serrated slope is coincident with the axis of the crushing blade 124. This utility model can effectively seal the grinding chamber 121 through the sealing door 300, and can also achieve efficient grinding and crushing of the materials in the grinding chamber 121 through the serrated blade 301 and the crushing blade 124.

[0023] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, the lower part of the grinding box 121 located below the filter element 126 is provided with a discharge hopper 400 connected to it. This utility model can realize the function of the discharge hopper 400 to filter the crushed material that meets the particle size requirements through the filter element 126 and then discharge and collect it through the discharge hopper 400.

[0024] How to use this utility model:

[0025] First, it needs to be clarified that the grinding equipment involved in this utility model is mainly used for crushing various materials into powder. The particle size of the crushed material is based on the diameter of the filter holes of the filter element 126. This utility model takes the grinding operation of limestone after preliminary crushing of blocky material as an example to describe its usage method in detail. When limestone needs to be ground, the output shaft of the drive element 122 is started to rotate while the limestone to be crushed is added to the grinding box 121 through the feed hopper 200. At this time, because the impact force of the falling limestone is greater than the torque force of the torsion spring, the dust baffle 125 will press the torsion spring under the impact of the limestone and rotate until the feed hopper 200 is opened. At this time, the limestone will enter the grinding box 121 through the feed hopper 200 and be crushed by the rotating crushing blade 124. After the feeding is completed, the torque force of the torsion spring will overcome the impact force. The dust baffle 125, under its own weight, restores the feed hopper 200 to a closed state. Simultaneously, the serrated blade 301 on the sealing door 300, in conjunction with the crushing blade 124, further crushes and grinds the material. Material smaller than the filter holes of the filter element 126 is discharged and collected through the discharge hopper 400, while material larger than the filter holes continues to be efficiently crushed by the rotating crushing blade 124. During this process, the dust baffle 125 effectively blocks dust generated during crushing, preventing it from escaping into the air. This invention effectively blocks dust generated during crushing through the hinged dust baffle 125, preventing dust from scattering and polluting the environment while also posing a health hazard to workers.

[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A flour milling apparatus comprising a flour mill (100), characterized in that: The grinding mill (100) includes a frame (110) and a crushing mechanism (120) disposed on the frame (110). The crushing mechanism (120) includes a grinding box (121) disposed on the frame (110). A driving component (122) is also disposed on the frame (110). The driving component (122) is connected to a rotating shaft (123). The rotating shaft (123) is rotatably disposed in the grinding box (121). A plurality of crushing blades (124) are disposed on the outside of the rotating shaft (123). A filter element (126) is disposed in the grinding box (121) and below the crushing blades (124). A dust baffle (125) is hinged in the grinding box (121) and above the crushing blades (124).

2. The mill apparatus of claim 1, wherein: The dust baffle (125) is hinged inside the grinding box (121) by a torsion spring.

3. The mill apparatus of claim 2, wherein: The upper part of the grinding box (121) is also provided with a feed hopper (200).

4. The mill apparatus of claim 3, wherein: The grinding chamber (121) is provided with a sealing door (300) on the outside, and a serrated blade (301) is provided inside the sealing door (300).

5. The mill apparatus of claim 4, wherein: The lower part of the grinding box (121) located below the filter element (126) is provided with a discharge hopper (400) connected thereto.

6. The mill apparatus of claim 5, wherein: The driving component (122) is a servo motor, and the output shaft of the driving component (122) is connected to the rotating shaft (123) via a transmission belt and a pulley.