Screen of drying machine

Abstract

The utility model discloses a dryer screen which comprises a conical large screen body and a conical small screen body, the small screen body is arranged in the large screen body, the tip of the large screen body faces downwards, the tip of the small screen body faces upwards, a discharging nozzle is arranged at the bottom of the large screen body, and the outer side of the small screen body is detachably arranged on the inner wall of the large screen body through a plurality of supporting rods. A plurality of first annular blades are arranged on the outer wall of the small screen, and the interior of the small screen is connected with a bead-string-shaped material scattering piece through a vertical connecting rod. The screen of the drying machine is divided into the large screen and the small screen, materials can collide with the small screen in the process that the materials fall into the large screen from top to bottom, certain loosening and crushing are carried out through the pinnacle, the conical surface and the first annular blade of the small screen, material viscosity is reduced, and the material screening effect is improved; in addition, the material scattering piece is arranged in the small screen, the materials which enter the small screen in a screening mode can further impact the material scattering piece, and therefore the loose degree of the materials can be kept.

Description

Technical Field

[0001] The utility model belongs to the technical field of dryers, in particular to a dryer screen. Background Art

[0002] In the production process of plastic products such as packaging boxes, dryers are often used to dry plastic raw materials. For dryers, the dryer screen is one of its main components, used to screen and select plastic raw materials.

[0003] Regarding the screen of the dryer, in the prior art, after searching, the utility model patent with the Chinese patent publication number CN218108414U discloses a screen of the centrifugal dryer, such as Figure 1 As shown, it mainly includes a conical ring-shaped annular screen a, and a gap b is provided on the annular screen.

[0004] In the prior art, the dryer screen similar to the above technical solution has room for improvement during actual implementation: there is no breaking mechanism in the middle of the annular screen, so during the screening process, the materials stick together, which easily affects the screening effect. Utility Model Content

[0005] In view of the shortcomings and defects in the prior art, the purpose of the present utility model is to provide a dryer screen that solves the problem that the middle part of the annular screen of the dryer screen in the prior art is not provided with a breaking mechanism, so that the materials stick together during the screening process, which easily affects the screening effect.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a dryer screen, comprising a conical large screen and a conical small screen, the small screen being arranged inside the large screen, with the tip of the large screen facing downward and the tip of the small screen facing upward, a discharge nozzle being provided at the bottom of the large screen, the outer side of the small screen being detachably arranged on the inner wall of the large screen through a plurality of support rods, a plurality of first annular blades being provided on the outer wall of the small screen, and the inside of the small screen being connected with beaded-shaped bulk parts through a vertical connecting rod.

[0007] As a further improvement of the present invention, an insert is fixed inside the large screen at the position where the support rod is set. The support rod includes a sleeve fixed on the small screen. A round rod is slidably connected inside the sleeve. The round rod is inserted into the insert and fixed by bolts 84.

[0008] As a further improvement of the present invention, the end of the round rod at one side close to the small screen is connected to the end of the sleeve through a spring.

[0009] As a further improvement of the present invention, a second annular blade is provided on the inner side of the large screen.

[0010] As a further improvement of the present invention, the large screen and the small screen are both made of stainless steel.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. By setting the dryer screen as a large screen and a small screen, with the tip of the large screen facing downward and the tip of the small screen facing upward, the material will hit the small screen in the process of falling from top to bottom onto the large screen, and will be loosened and crushed to a certain extent by the tip, conical surface and first annular blade of the small screen, thereby reducing the stickiness of the material and improving the screening effect of the material; in addition, the conical structure of the small screen can also disperse the concentrated material to the outside, thereby guiding the material to the mesh surface of the large screen, facilitating the screening of the material on the large screen, and in addition, by arranging bulk material parts inside the small screen, the material screened into the small screen can further hit the bulk material parts, thereby maintaining the looseness of the material, and finally, the material entering the small screen flows from the bottom into the large screen.

[0013] 2. By setting an insert cylinder on the large screen, setting the support rod to a sleeve and round rod structure, and inserting the round rod into the insert cylinder and fixing it with bolts 84, it is convenient to remove the small screen from the large screen.

[0014] 3. By connecting the end of the round rod and the end of the sleeve through a spring, the spring can push the round rod outward.

[0015] 4. By setting a second annular blade on the inside of the large screen, it is convenient to crush or scatter the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 It is a structural diagram of the prior art;

[0018] Figure 2 It is a structural diagram of the utility model;

[0019] Figure 3 for Figure 2 sectional view of

[0020] Figure 4 Schematic diagram of the structure of the support rod;

[0021] In the figure: 1, large screen; 2, small screen; 3, discharge nozzle; 4, first annular blade; 5, connecting rod; 6, bulk material parts; 7, insert cylinder; 8, support rod; 81, sleeve; 82, round rod; 83, spring; 84, bolt 84; 9, second annular blade. DETAILED DESCRIPTION

[0022] The following is combined with Figure 2-4 The present invention will be described in further detail. For a clearer illustration, only the structures related to the present invention are shown in the figures.

[0023] For the convenience of description, the coordinate system is defined as follows Figure 2 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0024] The embodiment of the utility model discloses a drying machine screen. Figure 2 and Figure 3 A dryer screen comprises a conical large screen 1 and a conical small screen 2, both of which are made of stainless steel. The small screen 2 is arranged inside the large screen 1, with the tip of the large screen 1 facing downward and the tip of the small screen 2 facing upward. A discharge nozzle 3 is provided at the bottom of the large screen 1. The outer side of the small screen 2 is detachably mounted on the inner wall of the large screen 1 via multiple support rods 8. Multiple first annular blades 4 are provided on the outer wall of the small screen 2. The interior of the small screen 2 is connected to beaded bulk material parts 6 via vertical connecting rods 5.

[0025] like Figure 3 and Figure 4 As shown, an insert cylinder 7 is fixed at the position where the support rod 8 is set inside the large screen 1. The support rod 8 includes a sleeve 81 fixed on the small screen 2. A round rod 82 is slidably connected inside the sleeve 81. The round rod 82 is inserted into the insert cylinder 7 and fixed by a bolt 84, which makes it convenient to remove the small screen 2 from the large screen 1. In addition, the round rod 82 is connected to the end of the sleeve 81 at one end close to the small screen 2 through a spring 83, and the spring 83 can push the round rod 82 outward.

[0026] In addition, if Figure 2 As shown, a second annular blade 9 is provided on the inner side of the large screen 1 to facilitate crushing or breaking up the material.

[0027] The utility model arranges the dryer screen into a large screen 1 and a small screen 2, and the tip of the large screen 1 faces downward and the tip of the small screen 2 faces upward. In the process of the material falling from top to bottom into the large screen 1, it will hit the small screen 2, and the tip, conical surface and first annular blade 4 of the small screen 2 will loosen and crush the material to a certain extent, thereby reducing the viscosity of the material and improving the screening effect of the material; in addition, the conical structure of the small screen 2 can also disperse the concentrated material to the outside, thereby guiding the material to the mesh surface of the large screen 1, which is convenient for the screening of the material on the large screen 1. In addition, by arranging the bulk material piece 6 inside the small screen 2, the material screened into the inside of the small screen 2 can further hit the bulk material piece 6, thereby maintaining the looseness of the material. Finally, the material entering the small screen 2 flows from the bottom into the large screen 1.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. It should be understood that the specific embodiments described here are only used to understand the present utility model and are not used to limit the present utility model. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present utility model.

Claims

1. A dryer screen, characterized in that: It includes a conical large screen and a conical small screen. The small screen is arranged inside the large screen, with the tip of the large screen facing downward and the tip of the small screen facing upward. A discharge nozzle is provided at the bottom of the large screen. The outer side of the small screen is detachably arranged on the inner wall of the large screen through multiple support rods. Multiple first annular blades are provided on the outer wall of the small screen. The inside of the small screen is connected to beaded bulk parts through vertical connecting rods.

2. A dryer screen according to claim 1, characterized in that: An insert is fixed inside the large screen at the position where the support rod is set. The support rod includes a sleeve fixed on the small screen. A round rod is slidably connected in the sleeve. The round rod is inserted into the insert and fixed by bolts.

3. A dryer screen according to claim 2, characterized in that: The end portion of the round rod at one side close to the small screen is connected to the end portion of the sleeve through a spring.

4. A dryer screen according to any one of claims 1 to 3, characterized in that: A second annular blade is provided on the inner side of the large screen.

5. A dryer screen according to any one of claims 1 to 3, characterized in that: The large screen and the small screen are both made of stainless steel.

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