Dust falling and efficiency improving device of double-roller double-auger rotary vibration sieve

Abstract

According to the technical scheme, the dust falling and efficiency improving device of the double-roller and double-auger rotary vibration screen comprises a supporting plate, a sealed protective cover is arranged at the top of the supporting plate, a first roller and a second roller are arranged in the protective cover, and screen meshes are arranged in the first roller and the second roller. The bottom of the first roller and the bottom of the second roller are provided with the same connecting plate, a vibration motor is installed on the connecting plate, the first roller and the second roller are connected with the supporting plate through vibration springs, one side of the supporting plate is provided with a first conveying pipe used for feeding, and the other side of the supporting plate is provided with a second conveying pipe used for discharging. The first conveying pipe and the second conveying pipe are matched with the protective cover to achieve sealing, so that the dust falling effect is achieved, meanwhile, impurities with the particle size smaller than that of needed crops are screened out through the first roller, impurities with the particle size larger than that of the needed crops are screened out through the second roller, and the screening effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary vibration screen technical field, concretely is a dust reduction and efficiency improving device of double-drum double-twist-rod rotary vibration screen. BACKGROUND

[0002] Rotary vibration screen is a high-precision fine powder screening machine, which has low noise and high efficiency, and needs 3-5 minutes for quick screen replacement, and is suitable for screening and filtering of particles, powder and mucilage.

[0003] However, the existing rotary vibration screen will produce dust during the screening process, which will affect the working environment, and then may affect the work efficiency due to dust cleaning. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model aims at providing a dust reduction and efficiency improving device of double-drum double-twist-rod rotary vibration screen.

[0005] In order to achieve the above-mentioned purpose, the utility model is technical scheme as follows:

[0006] A dust reduction and efficiency improving device of double-drum double-twist-rod rotary vibration screen, including support plate, the support plate top is provided with sealed protective cover, the protective cover is provided with first cylinder and second cylinder, the first cylinder and second cylinder are provided with screen cloth, the first cylinder and second cylinder bottom are provided with same connecting plate, the connecting plate is installed with vibration motor, and the first cylinder and second cylinder are connected through vibration spring with support plate, the support plate one side is provided with first conveying pipe for feeding, and the support plate other side is provided with second conveying pipe for discharging.

[0007] Preferably, the protective cover is provided with double-layer structure, the outer layer of the protective cover is provided with stainless steel frame embedded with polyurethane foam, and the inner layer is provided with sealed cover made of transparent acrylic material.

[0008] Preferably, the first cylinder is provided with inclined downward communication hole with the second cylinder, and the horizontal height of the communication hole is higher than the horizontal height of the screen cloth in the second cylinder.

[0009] Preferably, the horizontal height of the screen cloth in the first cylinder is higher than the horizontal height of the screen cloth in the second cylinder, and the aperture of the screen cloth in the first cylinder is smaller than the aperture of the screen cloth in the second cylinder.

[0010] Preferably, the first cylinder and second cylinder are provided with rubber bounce ball below the screen cloth.

[0011] Preferably, the first conveying pipe is vertically arranged, an inclined feeding pipe is arranged below one side of the first conveying pipe, and an inclined discharging pipe is arranged above the other side of the first conveying pipe and penetrates the protective cover and is located above the first roller, and the second conveying pipe is horizontally arranged, a feeding pipe is arranged on the upper portion of one side of the second conveying pipe, and a discharging pipe is arranged on the lower portion of the other side of the second conveying pipe.

[0012] Preferably, a driving motor is arranged in each of the first conveying pipe and the second conveying pipe, a rotating shaft is drivingly arranged at the output end of the driving motor, and a spiral blade is arranged on the rotating shaft.

[0013] Preferably, the pitch of the spiral blade gradually changes, the pitch of the feeding section is smaller than the pitch of the discharging section, and the surface of the spiral blade is plated with hard chromium.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. The first conveying pipe and the second conveying pipe cooperate with the protective cover to realize sealing and dust reduction, the first roller screens out impurities with a particle size smaller than that of the required crops, the second roller screens out impurities with a particle size larger than that of the required crops, the screening effect is improved, and the present application has high practical value.

[0016] 2. The vibration motor drives the screen to vibrate, the bouncing ball hits the screen through vibration, hole blocking is prevented, self-cleaning is achieved, the gradually changing spiral blade balances the conveying speed and the screening time, the spiral blade plated with hard chromium on the surface reduces the friction coefficient and reduces material adhesion. BRIEF DESCRIPTION OF DRAWINGS

[0017] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are only used for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a schematic diagram of the structure of the support plate of the present application;

[0020] Figure 3 It is a schematic diagram of the structure of the first roller of the present application Figure 1 ;

[0021] Figure 4 It is a schematic diagram of the structure of the first roller of the present application Figure 2 ;

[0022] Figure 5 It is a schematic diagram of the internal structure of the conveying pipe of the present application.

[0023] The diagram shows: 1. Support plate; 2. Protective cover; 3. First conveying pipe; 4. Second conveying pipe.

[0024] 5. First roller; 6. Second roller; 7. Connecting plate; 8. Vibration motor; 9. Vibration spring;

[0025] 10. Screen; 11. Through hole; 12. Bouncing ball; 13. Drive motor; 14. Rotating shaft; 15. Spiral blade. Detailed Implementation

[0026] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0027] like Figure 1 As shown, this utility model discloses a dust reduction and efficiency improvement device for a double-drum, double-auger vibrating screen, comprising a support plate 1. A sealed protective cover 2 is mounted on the top of the support plate 1. The protective cover 2 has a double-layer structure: the outer layer is a stainless steel frame embedded with polyurethane foam, and the inner layer is a transparent acrylic sealing cover. The outer layer provides stability, sound insulation, and heat insulation, while the transparent inner layer facilitates observation of the screening process. A first drum 5 and a second drum 6 are installed inside the protective cover 2. Figure 3 As shown, both the first roller 5 and the second roller 6 are equipped with screens 10, such as... Figure 2 As shown, the first roller 5 and the second roller 6 are provided with the same connecting plate 7 at their bottoms. A vibration motor 8 is installed on the connecting plate 7. The first roller 5 and the second roller 6 are connected to the support plate 1 by vibration springs 9. The vibration motor 8 drives the screen 10 to vibrate, thereby completing the screening work.

[0028] A through hole 11, inclined downwards and communicating with the second roller 6, is provided on one side of the first roller 5. The horizontal height of the through hole 11 is higher than the horizontal height of the screen 10 inside the second roller 6. The horizontal height of the screen 10 inside the first roller 5 is higher than the horizontal height of the screen 10 inside the second roller 6. Furthermore, the aperture of the screen 10 inside the first roller 5 is smaller than the aperture of the screen 10 inside the second roller 6. The first roller 5 filters out impurities with a particle size smaller than the desired crop particle size, while the second roller 6 filters out impurities with a particle size larger than the desired crop particle size, thus improving the screening effect. Figure 4 As shown, both the first roller 5 and the second roller 6 are equipped with rubber bouncing balls 12 located below the screen 10. The screen 10 is driven to vibrate by the vibration motor 8. The vibration causes the bouncing balls 12 to hit the screen 10, preventing blockage and achieving a self-cleaning effect.

[0029] The support plate 1 is provided with a first conveying pipe 3 for feeding on one side, and a second conveying pipe 4 for discharging on the other side, the first conveying pipe 3 is vertically arranged, an inclined feeding pipe is arranged below one side of the first conveying pipe 3, and an inclined discharging pipe is arranged above the other side of the first conveying pipe 3 and penetrates the protective cover 2 and is located above the first roller 5, the second conveying pipe 4 is horizontally arranged, a feeding pipe is arranged on the upper part of one side of the second conveying pipe 4, and a discharging pipe is arranged on the lower part of the other side of the second conveying pipe 4, driving motors 13 are arranged in the first conveying pipe 3 and the second conveying pipe 4, as shown in the figure, the output end of the driving motor 13 is drivingly provided with a rotating shaft 14, the rotating shaft 14 is provided with a spiral blade 15, the spiral blade 15 is driven to rotate by the driving motor 13 to realize the conveying of the material, the first conveying pipe 3 and the second conveying pipe 4 cooperate with the protective cover 2 to realize sealing and dust reduction, the pitch of the spiral blade 15 gradually changes, and the pitch of the feeding section is smaller than that of the discharging section, the feeding section is dense, the discharging section is sparse, the conveying speed and the screening time are balanced, the surface of the spiral blade 15 is plated with hard chromium to reduce the friction coefficient and reduce the adhesion of the material. Figure 5

[0030] In use, the material is added into the first conveying pipe 3 from the feeding pipe on the first conveying pipe 3 and is conveyed into the first roller 5 through the discharging pipe, the screening work is completed by the vibration motor 8, the material left on the screen 10 of the first roller 5 enters the second roller 6 through the through hole 11, the required crops are screened below the screen 10 and enter the second conveying pipe 4 through the feeding pipe of the second conveying pipe 4 and are conveyed out through the discharging pipe.

[0031] The technical scope of the utility model is not limited to the content in the above description, and the above embodiment can be variously deformed and modified by those skilled in the art without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection scope of the utility model.​

Claims

1. A dust reduction and efficiency improving device for a double-drum double-auger rotary screen, characterized in that: The utility model provides a kind of double roller screening device, including support plate (1), the top of support plate (1) is provided with sealed protective cover (2), first roller (5) and second roller (6) are provided in protective cover (2), screen (10) is provided in first roller (5) and second roller (6), the bottom of first roller (5) and second roller (6) is provided with same connecting plate (7), vibrating motor (8) is installed on connecting plate (7), and first roller (5) and second roller (6) are connected between vibrating spring (9) and support plate (1), one side of support plate (1) is provided with first conveying pipe (3) for feeding, and the other side of support plate (1) is provided with second conveying pipe (4) for discharging. ​ 2. The dust reduction and efficiency improving device of a double-drum double-auger rotary screen according to claim 1, characterized in that: The protective cover (2) is provided as a double-layer structure, the outer layer of the protective cover (2) is provided as a stainless steel frame embedded with polyurethane foam, and the inner layer is provided as a sealed cover made of transparent acrylic material.

3. The dust reduction and efficiency improving device of a double-drum double-auger rotary screen according to claim 2, characterized in that: The first roller (5) is provided with a through hole (11) on one side thereof, which is inclined downward and communicates with the second roller (6), and the horizontal height of the through hole (11) is higher than that of the screen (10) in the second roller (6).

4. The dust reduction and efficiency improving device of a double-drum double-auger rotary screen according to claim 3, characterized in that: The horizontal height of the screen (10) in the first roller (5) is higher than that of the screen (10) in the second roller (6), and the aperture of the screen (10) in the first roller (5) is smaller than that of the screen (10) in the second roller (6).

5. The dust reduction and efficiency improving device of a double-drum double-auger rotary screen according to claim 4, characterized in that: The first roller (5) and the second roller (6) are both provided with a rubber bounce ball (12) below the screen (10).

6. The dust reduction and efficiency improving device of a double-drum double-auger rotary screen according to claim 1, characterized in that: The first conveying pipe (3) is vertically arranged, an inclined feeding pipe is arranged below one side of the first conveying pipe (3), and an inclined discharging pipe is arranged above the other side of the first conveying pipe (3) and penetrates through the protective cover (2) and is located above the first roller (5), the second conveying pipe (4) is horizontally arranged, a feeding pipe is arranged on the upper part of one side of the second conveying pipe (4), and a discharging pipe is arranged on the lower part of the other side of the second conveying pipe (4).

7. The dust reduction and efficiency improving device of a double-drum double-auger rotary screen according to claim 6, characterized in that: The first conveying pipe (3) and the second conveying pipe (4) are both provided with a driving motor (13), a rotating shaft (14) is drivingly arranged on the output end of the driving motor (13), and helical blades (15) are arranged on the rotating shaft (14).

8. The dust reduction and efficiency improving device of a double-drum double-auger rotary screen according to claim 7, characterized in that: The helical blades (15) gradually change in pitch, and the pitch of the feeding section is smaller than that of the discharging section, and the surface of the helical blades (15) is plated with hard chromium.

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