A sieving mill

Abstract

The utility model provides a kind of screening powder grinding machine, it is related to food processing equipment technical field, including screening bin, the bottom of screening bin is connected along length direction and is equipped with several powder grinding devices, the top of screening bin is connected feed rack, screening bin is supported by spring installation and is equipped with screen rack inside, vibration motor is installed on screen rack, screening bin inboard end is equipped with suction residue rack extending into screen rack, by being connected along length direction and being equipped with several powder grinding devices in screening bin bottom;Make that raw material after screening can directly enter powder grinding device, avoid the situation that raw material without being screened directly enters powder grinding machine, improve the linkage effect between screening mechanism and powder grinding mechanism, reduce unnecessary energy consumption, improve the working efficiency of overall equipment.

Description

Technical Field

[0001] This utility model relates to the field of food processing equipment technology, and in particular to a screening and grinding mill. Background Technology

[0002] Existing screening and grinding mills typically consist of two main parts: a screening mechanism and a grinding mechanism.

[0003] The screening mechanism is mainly used to remove impurities from the raw materials, while the grinding mechanism is responsible for grinding the screened raw materials to achieve the required fineness. Although this equipment has shown some practical value in certain application scenarios, the lack of effective coordination between the screening mechanism and the grinding mechanism results in poor overall equipment linkage. Specifically, during the screening process, raw materials that have not been properly screened directly enter the grinding mill, leading to unnecessary energy consumption and affecting the output effect of the grinding mill, thus reducing the overall working efficiency of the equipment.

[0004] In conclusion, improving the design and combination of this type of equipment, and enhancing the effective coordination between screening and grinding, is of great significance for improving the equipment's working efficiency and application range. Therefore, we propose a screening and grinding mill. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, improve the coordination and linkage effect of screening and grinding mills, optimize the grinding process, and enhance equipment efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A screening and grinding mill includes a screening chamber, on which a plurality of grinding devices are connected and installed along the length of the bottom. A feeding frame is connected to the top of the screening chamber. A screen frame is supported inside the screening chamber by springs. A vibration motor is installed on the screen frame. The screen frame and the feeding frame are connected by a telescopic feeding joint. A slag suction frame extending into the screen frame is installed on the inner end of the screening chamber.

[0008] Furthermore, the screening chamber is mounted on the base via an outer bracket, and a feeding bracket is installed on the base at both ends and above the screening chamber, with the feeding rack docked to the feeding bracket.

[0009] Furthermore, the other end of the feeding bracket is connected to the powder conveying device, and the feeding bracket has a channel that gradually increases in size from the powder conveying device end to the screening bin end.

[0010] Furthermore, the grinding device is a disc mill type grinding mechanism, which is built into the grinding chamber and connected to the screening chamber, with the powder outlet pipe connected to the end away from the screening chamber.

[0011] Furthermore, there are no fewer than two vibration motors, symmetrically arranged on both sides of the screen frame, and the two sides of the screen frame where the vibration motors are installed form the first sealing surface along the length direction.

[0012] Furthermore, there are no fewer than four springs, arranged in a rectangular pattern on both sides of the screen frame towards the bottom, and the spring mounting part of the screen frame forms a second sealing surface along its length.

[0013] Furthermore, the slag suction frame is arranged along the length of the screen frame, close to the lowest point, and the slag suction port of the slag suction frame faces the lowest point of the screen frame.

[0014] Furthermore, the slag suction frame is connected to one end of the screen frame via a telescopic connector. A valve is installed on the outside of the telescopic connector near the screening chamber. The other end of the valve is connected to a fan duct, which is connected to an external ventilation device.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] I. Optimize the combination of screening and grinding:

[0017] Linkage design: By connecting and installing several grinding devices along the length of the bottom of the screening chamber, the screened raw materials can directly enter the grinding devices, avoiding the situation where raw materials that have not been properly screened directly enter the grinding mill. This improves the linkage effect between the screening mechanism and the grinding mechanism, reduces unnecessary energy consumption, and improves the overall working efficiency of the equipment.

[0018] Telescopic feed joint: The screen frame and the feed frame are connected by a telescopic feed joint; this design makes the feeding process smoother and further ensures that the raw materials can enter the screening chamber accurately and stably for screening, providing a good foundation for subsequent grinding work.

[0019] II. Improve screening efficiency:

[0020] Vibrating screen: The screen frame is equipped with vibrating motors, and there are no fewer than two vibrating motors, which are symmetrically arranged on both sides of the screen frame. The setting of vibrating motors can make the screen frame vibrate, thereby accelerating the screening speed of raw materials on the screen and improving screening efficiency. At the same time, it also helps to separate impurities from the raw materials.

[0021] Slag suction device: A slag suction frame extending into the screen frame is installed on the inner end of the screening chamber. The slag suction frame is arranged along the length of the screen frame and close to the lowest point, with the slag suction port facing the lowest point of the screen frame. This design can promptly remove the residual impurities in the screen frame after screening stops, preventing impurities from accumulating on the screen and affecting the screening effect, thus ensuring the smooth progress of the screening process. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of a screening and grinding mill provided by this utility model;

[0023] Figure 2 A partial structural schematic diagram of a screening and grinding mill provided by this utility model;

[0024] Figure 3 A schematic diagram of the anatomical plan of the screening chamber of a screening and grinding mill provided by this utility model;

[0025] Figure 4 A plan view of the bottom structure of the slag suction frame of a screening and grinding mill provided by this utility model.

[0026] Legend: 1. Screening bin; 11. Outer support; 12. Base; 13. Feed support;

[0027] 2. Grinding device; 21. Grinding hopper;

[0028] 3. Feed rack;

[0029] 4. Screen frame; 41. First sealing surface; 42. Second sealing surface;

[0030] 5. Spring;

[0031] 6. Vibration motor;

[0032] 7. Telescopic feed joint;

[0033] 8. Slag suction frame; 81. Expansion joint; 82. Valve; 83. Fan duct. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0035] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] Example 1

[0039] like Figure 1-4 As shown, this utility model provides a technical solution: a screening and grinding mill, including a screening chamber 1, preferably cylindrical, with several grinding devices 2 connected and installed along the length of the bottom of the screening chamber 1, a feeding frame 3 connected to the top of the screening chamber 1, a screen frame 4 supported by springs 5 ​​inside the screening chamber 1, preferably cylindrical, with the mesh size of the screen selected and designed according to requirements, a vibration motor 6 installed on the screen frame 4, the screen frame 4 and the feeding frame 3 connected by a telescopic feeding joint 7, and a slag suction frame 8 extending into the screen frame 4 installed on the inner end of the screening chamber 1.

[0040] Example 2

[0041] like Figure 1-4 As shown, the screening bin 1 is mounted on the base 12 via the outer bracket 11. The base 12 is equipped with feeding brackets 13 at both ends and above the screening bin 1. The feeding rack 3 is connected to the feeding rack 13. The other end of the feeding rack 13 is connected to the powder conveying device. The feeding rack 13 has a channel that gradually widens from the powder conveying device end to the screening bin 1 end, so that the material is gradually dispersed into the screen frame 4 during the conveying process, avoiding the accumulation of material at the feed inlet.

[0042] The grinding device 2 is a disc mill grinding mechanism, which is installed inside the grinding chamber 21 and connected to the screening chamber 1. The end away from the screening chamber 1 is connected to the powder discharge pipe. The disc mill grinding mechanism can efficiently grind the screened material, and the ground material is discharged through the powder discharge pipe.

[0043] There are no fewer than two vibrating motors 6, which can be 4, 6 or 8, etc., selected according to the length of the screen frame 4. They are symmetrically arranged on both sides of the screen frame 4. The two sides of the screen frame 4 where the vibrating motors 6 are installed have the first sealing surface 41 along the length direction. The symmetrical arrangement of the vibrating motors 6 can make the screen frame 4 vibrate evenly, improving the screening effect. The first sealing surface 41 provides the mounting point for the vibrating motors 6.

[0044] There are no fewer than four springs 5, and the quantity can be double, such as 4, 6 or 8, depending on the length of the screen frame 4. They are arranged in a rectangular shape on both sides of the lower part of the screen frame 4. The part of the screen frame 4 where the springs 5 ​​are installed is the second sealing surface 42 along the length direction. The spring support structure can provide stable support for the screen frame, while allowing the screen frame to have a certain amount of movement during vibration, ensuring that the vibration motor can work normally. At the same time, the second sealing surface 42 provides the mounting point for the springs 5.

[0045] The slag suction frame 8 is arranged along the length of the screen frame 4, close to the lowest point, and the slag suction port of the slag suction frame 8 faces the lowest point of the screen frame 4. This can more effectively remove the impurities remaining on the screen frame 4. The slag suction frame 8 is connected to one end of the screen frame 4 through a telescopic connector 81. A valve 82 is installed on the outside of the telescopic connector 81 near the screening chamber 1. The other end of the valve 82 is connected to the fan pipe 83. The fan pipe 83 is connected to the external ventilation equipment. The valve 82 can control the opening and closing of the slag suction and also prevent dust from escaping during the screening process.

[0046] The working process of this utility model is as follows: When using a screening and grinding mill, the material to be ground is first conveyed to the feeding support 13 through the powder conveying device. The material enters the screen frame 4 in the screening chamber 1 from the feeding frame 3 through the telescopic feeding joint 7. The vibration motor 6 is started and operates. The vibration motor 6 generates vibration, which drives the screen frame 4 to vibrate and screen the powder. The powder falls through the screen of the screen frame 4 into the bottom of the screening chamber 1, while larger particles of impurities remain in the screen frame 4.

[0047] After screening, the qualified material falls from the bottom of the screening bin 1 into the connected grinding device 2. The grinding device 2 adopts a disc mill grinding mechanism. The powder is efficiently ground in the grinding bin 21. The ground powder is discharged through the powder outlet pipe, completing the entire screening and grinding process.

[0048] After screening, valve 82 is opened and external ventilation equipment is started. The remaining impurities on the screen frame 4 are removed through the fan pipe 83 and the slag suction frame 8 (after all the contents of the screening chamber 1 have passed through the grinding device 2). This is to prevent impurities from affecting the subsequent grinding effect (which is carried out batch by batch). The slag suction frame 8 is arranged close to the lowest point of the screen frame 4 and the slag suction port faces the lowest point, which can more effectively remove impurities.

[0049] Through the above workflow, the screening and grinding mill of this utility model can achieve efficient screening and grinding operations, and has the advantages of simple structure, convenient operation, and good screening and grinding effect.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening mill comprising a screening bin (1), the bottom of which is connected in communication along the length direction with a plurality of grinding devices (2), and the top of which is connected with a feeding frame (3), characterized in that: The screening chamber (1) is supported by a screen frame (4) installed inside by a spring (5). A vibration motor (6) is installed on the screen frame (4). The screen frame (4) is connected to the feeding frame (3) by a telescopic feeding joint (7). A slag suction frame (8) extending into the screen frame (4) is installed on the inner side of the screening chamber (1).

2. A sieving mill according to claim 1, characterised in that: The screening chamber (1) is mounted on the base (12) via an outer bracket (11). Feeding brackets (13) are installed on the base (12) at both ends and above the screening chamber (1). The feeding rack (3) is connected to the feeding bracket (13).

3. A sieving mill according to claim 2, characterised in that: The other end of the feeding bracket (13) is connected to the powder conveying device, and the feeding bracket (13) has a channel that gradually increases from the powder conveying device end to the screening bin (1) end.

4. A sieving mill according to claim 1, characterized in that: The grinding device (2) is a disc mill type grinding mechanism, which is installed inside the grinding chamber (21) and connected to the screening chamber (1). The end away from the screening chamber (1) is connected to the powder outlet pipe.

5. A sieving mill according to claim 1, characterized in that: There are at least two vibration motors (6), which are symmetrically arranged on both sides of the screen frame (4). The two sides of the screen frame (4) where the vibration motors (6) are installed are the first sealing surfaces (41) along the length direction.

6. A sieving mill according to claim 1, characterized in that: The springs (5) are not less than four and are arranged in a rectangular shape on both sides of the screen frame (4). The part of the screen frame (4) where the springs (5) are installed is the second sealing surface (42) along the length direction.

7. A sieving mill according to claim 1, characterized in that: The slag suction frame (8) is arranged along the length of the screen frame (4) and close to the lowest point, with the slag suction port of the slag suction frame (8) facing the lowest point of the screen frame (4).

8. A sieving mill according to claim 1, characterized in that: The slag suction frame (8) is connected to one end of the screen frame (4) via a telescopic connector (81). A valve (82) is installed on the outside of the telescopic connector (81) near the screening chamber (1). The other end of the valve (82) is connected to the fan pipe (83), which is connected to an external ventilation device.

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