Screening machine with crushing function

Abstract

The utility model relates to the technical field of screening machines, in particular to a screening machine with a smashing function, which comprises a screening machine body, a dust collecting box is arranged above the screening machine body, the inner bottom wall of the dust collecting box is obliquely arranged, and the oblique lowest end of the inner bottom wall of the dust collecting box is communicated with a discharging pipe. The end, away from the dust collecting box, of the discharging pipe extends downwards and communicates with a feeding port of the screening machine body, a feeding hopper is arranged at the top of the dust collecting box and located over the highest inclined end of the inclined inner bottom wall of the dust collecting box, a rotating motor is arranged above the dust collecting box on one side of the feeding hopper, and the output end of the rotating motor is coaxially connected with a rotating shaft. The end, away from the rotating motor, of the rotating shaft penetrates through the top wall of the dust collecting box and then extends into the dust collecting box, stirring blades are arranged on the rotating shaft and used for beating materials falling into the dust collecting box when rotating, and the dust collecting box communicates with a dust remover. According to the utility model, the content of caked fertilizer obtained when the fertilizer is screened by the screening machine can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screening machines, in particular to a screening machine with a crushing function. Background Art

[0002] The screening machine is a common agricultural machinery and equipment. It can be used to screen materials such as fertilizers to achieve the purpose of grading, impurity removal, separation, etc. The working principle of the screening machine is mainly to separate materials according to size, shape, density and other characteristics through mechanical vibration and the screening effect of the screen. Specifically, the screening machine is mainly composed of a feed port, a screening chamber, a discharge port, a vibration mechanism and other parts. When the material enters the screening chamber from the feed port, the screening chamber begins to generate mechanical vibrations through the vibration mechanism, causing the material to continuously jump, roll and flip on the screen. During the screening process, the material will be blocked and separated by the screen. Larger material particles will be left on the upper screen, while smaller material particles will pass through the screen and fall into the lower layer. Through different levels of screens, materials can be divided into different grades to achieve the purpose of grading, impurity removal and separation.

[0003] Fertilizers are prone to caking due to the characteristics of the raw materials themselves. Some fertilizer manufacturers adopt non-closed production. During the production process, the higher the air humidity, the easier it is for the fertilizer to absorb moisture and clump. When the weather is dry, the fertilizer is not easy to clump.

[0004] With respect to the above-mentioned related technologies, the applicant believes that in the related technologies, in the process of non-sealed processing and production of fertilizers, since the air humidity is difficult to control, the fertilizer is prone to agglomeration during the processing before packaging, resulting in fertilizer particles of different sizes. When a screening machine is used for screening, fertilizer with more agglomerates will be obtained. Fertilizer agglomeration will lead to a decrease in the release rate and uniformity of the fertilizer, thereby affecting the growth effect and yield of crops. Agglomerated fertilizers usually need to be manually knocked and broken. Utility Model Content

[0005] The utility model aims to provide a material screening machine with a crushing function to solve the problem that a lot of caking fertilizers are easily obtained in the process of non-sealed fertilizer production.

[0006] The utility model is realized by the following technical solutions:

[0007] A screening machine with a crushing function comprises a screening machine body, a dust collecting box is arranged above the screening machine body, the inner bottom wall of the dust collecting box is arranged inclined, the lowest inclined end of the inner bottom wall of the dust collecting box is connected to a discharge pipe, the end of the discharge pipe away from the dust collecting box extends downward and is connected with the feed port of the screening machine body, a feed hopper is arranged on the top of the dust collecting box, the feed hopper is located directly above the highest inclined end of the inclined inner bottom wall of the dust collecting box, a rotating motor is arranged above the dust collecting box on one side of the feed hopper, the output end of the rotating motor is coaxially connected with a rotating shaft, the end of the rotating shaft away from the rotating motor passes through the top wall of the dust collecting box and extends to the inside of the dust collecting box, a stirring blade is arranged on the rotating shaft, and the stirring blade is used to hit the material falling into the inside of the dust collecting box when rotating, and the dust collecting box is connected to a dust collector.

[0008] Furthermore, a plurality of stirring blades are arranged on the outer wall of the rotating shaft along the circumferential direction, and a plurality of stirring blades are also arranged on the outer wall of the rotating shaft along the length direction.

[0009] Furthermore, the dust box is provided with an air blowing assembly, and the air blowing assembly is used to blow air toward the material falling into the dust box.

[0010] Furthermore, the blowing assembly includes an air delivery pipe, one end of the air delivery pipe is connected to an air storage tank, and the other end extends to the inside of the dust box after passing through the wall of the dust box. An intermediate pipe is provided at one end of the air delivery pipe located inside the dust box. The intermediate pipe is horizontally arranged, and multiple blowing pipes are arranged at intervals on the intermediate pipe, and the multiple blowing pipes are all facing multiple stirring blades.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] In this solution, the rotating motor and the vibrating motor of the screening machine body are started, and then the fertilizer is transported to the inside of the dust box through the feed hopper. The agglomerated material falls to the bottom wall of the dust box after passing through the feed hopper. During the falling process of the material, the rotation of the rotating motor drives the rotating shaft and the stirring blades to rotate. When the stirring blades rotate, they can hit the fallen agglomerated materials in a collision-like manner. The materials hit by the stirring blades will also rebound and collide with the inner wall of the dust box. The agglomerated fertilizer can be broken up by the stirring blades moving at a relatively high speed. In addition, the collision of the agglomerated fertilizer with the dust box can also cause the agglomerated fertilizer to break into smaller particles of fertilizer, which is beneficial to reducing the output of agglomerated fertilizer and reducing the workload of manually beating the agglomerated fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model.

[0014] In the attached picture:

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0016] Figure 2 This is a partial structural diagram of Example 1 of the utility model.

[0017] Marks and corresponding parts names in the attached drawings:

[0018] 1. Screening machine body; 2. Dust collecting box; 3. Discharge pipe; 4. Feed hopper; 5. Rotating motor; 6. Rotating shaft; 7. Stirring blades; 8. Dust collector; 9. Air conveying pipe; 10. Air storage tank; 11. Intermediate pipe; 12. Air blowing pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the embodiments and drawings. The schematic implementation mode and description of the utility model are only used to explain the utility model and are not intended to limit the utility model. It should be noted that the utility model is already in the actual development and use stage.

[0020] Example 1

[0021] A screening machine with crushing function, referring to Figure 1 , Figure 2 , including a screening machine body 1, a dust box 2 is arranged above the screening machine body 1, the inner bottom wall of the dust box 2 is arranged inclined, and the lowest inclined end of the inner bottom wall of the dust box 2 is connected to a discharge pipe 3, the end of the discharge pipe 3 away from the dust box 2 extends downward and is connected to the feeding port of the screening machine body 1, a feed hopper 4 is arranged on the top of the dust box 2, the feed hopper 4 is located just above the inclined highest end of the inclined inner bottom wall of the dust box 2, a rotating motor 5 is arranged above the dust box 2 on one side of the feed hopper 4, the output end of the rotating motor 5 is coaxially connected with a rotating shaft 6, the end of the rotating shaft 6 away from the rotating motor 5 passes through the top wall of the dust box 2 and extends to the inside of the dust box 2, a stirring blade 7 is arranged on the rotating shaft 6, and the stirring blade 7 is used to hit the material falling into the dust box 2 when it rotates, and the dust box 2 is connected to a dust collector 8.

[0022] In this scheme, refer to Figure 1 , Figure 2, start the rotating motor 5 and the vibration motor of the screening machine body 1, and then transport the fertilizer to the dust box 2 through the feed hopper 4. After passing through the feed hopper 4, the material falls to the bottom wall of the dust box 2. During the falling process, the rotating motor 5 drives the rotating shaft 6 and the stirring blade 7 to rotate. When the stirring blade 7 rotates, it can hit the falling agglomerated fertilizer in a collision-like manner. The material hit by the stirring blade 7 will also rebound and collide with the inner wall of the dust box 2. The agglomerated fertilizer can be hit and broken by the stirring blade 7 moving at a relatively high speed. In addition, the collision of the agglomerated fertilizer with the dust box 2 can also cause the agglomerated fertilizer to break. Due to the stirring and hitting action of the stirring blade 7, the fertilizer will generate dust, and then the dust collector 8 can suck out the dust in the dust box 2 and store it, which is conducive to removing the dust in the process of screening materials by the screening machine. The material in the dust box 2 is transported to the inside of the screening machine body 1 through the discharge pipe 3 under the vibration of the screening machine body 1, which is convenient for screening materials of different particle sizes and large particle impurities. The screening machine body 1 adopts some commonly used vibrating screening machines, which can be directly purchased and its specific structure is not described in detail.

[0023] As a preferred embodiment, refer to Figure 1 , Figure 2 A plurality of stirring blades 7 are arranged on the outer wall of the rotating shaft 6 along the circumferential direction, and a plurality of stirring blades 7 are also arranged on the outer wall of the rotating shaft 6 along the length direction; during the rotation process, the plurality of stirring blades 7 can collide and strike the falling materials more fully, which is conducive to breaking more agglomerated fertilizers by knocking.

[0024] As a preferred embodiment, refer to Figure 1 , Figure 2 The dust box 2 is provided with a blowing assembly, which is used to blow air toward the material falling into the dust box 2; the blowing assembly is helpful to disperse the agglomerated fertilizer, reduce the content of the agglomerated fertilizer, and reduce the volume of the agglomerated fertilizer.

[0025] As a preferred embodiment, refer to Figure 1 , Figure 2 The blowing assembly includes an air conveying pipe 9, one end of which is connected to an air storage tank 10, and the other end of which passes through the wall of the dust box 2 and extends to the inside of the dust box 2. An intermediate pipe 11 is provided at one end of the air conveying pipe 9 located inside the dust box 2. The intermediate pipe 11 is horizontally arranged, and a plurality of blowing pipes 12 are arranged at intervals on the intermediate pipe 11, and the plurality of blowing pipes 12 are all directed toward the plurality of stirring blades 7; the plurality of blowing pipes 12 are beneficial to increasing the blowing area of ​​the material, which is convenient for blowing away the agglomerated fertilizers in various areas during the falling process, and is beneficial to improving the blowing effect of the agglomerated fertilizers.

[0026] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A material screening machine with a crushing function, comprising a material screening machine body (1), characterized in that: A dust box (2) is arranged above the screening machine body (1), the inner bottom wall of the dust box (2) is arranged obliquely, and a discharge pipe (3) is arranged in communication with the lowest inclined end of the inner bottom wall of the dust box (2), and the end of the discharge pipe (3) away from the dust box (2) extends downward and is in communication with the feed port of the screening machine body (1), and a feed hopper (4) is arranged on the top of the dust box (2), and the feed hopper (4) is located directly above the highest inclined end of the inclined inner bottom wall of the dust box (2). 4) A rotating motor (5) is arranged above the dust box (2) on one side, and the output end of the rotating motor (5) is coaxially connected with a rotating shaft (6), and the end of the rotating shaft (6) away from the rotating motor (5) passes through the top wall of the dust box (2) and extends into the interior of the dust box (2), and a stirring blade (7) is arranged on the rotating shaft (6), and when the stirring blade (7) rotates, it is used to hit the material falling into the interior of the dust box (2), and the dust box (2) is connected to a dust collector (8).

2. A screening machine with a crushing function according to claim 1, characterized in that: The outer wall of the rotating shaft (6) is provided with a plurality of stirring blades (7) along the circumferential direction, and the outer wall of the rotating shaft (6) is also provided with a plurality of stirring blades (7) along the longitudinal direction.

3. A screening machine with a crushing function according to claim 2, characterized in that: The dust box (2) is provided with an air blowing assembly, and the air blowing assembly is used to blow air toward the material falling into the dust box (2).

4. A screening machine with a crushing function according to claim 3, characterized in that: The air blowing assembly comprises an air conveying pipe (9), one end of the air conveying pipe (9) is connected to an air storage tank (10), and the other end passes through the wall of the dust collecting box (2) and extends to the inside of the dust collecting box (2); an intermediate pipe (11) is provided at one end of the air conveying pipe (9) located inside the dust collecting box (2); the intermediate pipe (11) is arranged horizontally, and a plurality of air blowing pipes (12) are arranged at intervals on the intermediate pipe (11); the plurality of air blowing pipes (12) are all directed toward the plurality of stirring blades (7).

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