Screening mechanism with dustproof structure

Abstract

The utility model discloses a screening mechanism with a dustproof structure, which relates to the technical field of screening equipment and comprises an inclined mechanism, a screening tank is fixedly mounted on an inclined output surface of the inclined mechanism, a plurality of dust suction ports are formed in the surface of the screening tank, and an adsorption port is formed in the top end of the screening tank. The fan blades are driven by the driving motor to rotate, so that the dustproof box is in a negative pressure state, the negative pressure is transmitted into the multiple suction pipes through the conveying pipe and the integrated pipe, and the dust-proof mechanism is fixedly installed on the output face of the inclined mechanism and comprises a dust-proof box. By arranging the suction pipes in each screening area and each crushing area in the screening tank, dust generated in each area can be adsorbed, the dust is sucked into the dustproof box through the integrated pipe and the conveying pipe, the dust is intercepted and collected through the secondary filter plate obliquely arranged in the dustproof box, and the dustproof effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screening equipment, in particular to a screening mechanism with dustproof structure. BACKGROUND

[0002] The screening equipment is important mechanical equipment widely used in chemical industry, food industry, pharmaceutical industry, building material industry and many other industries, and its main function is to classify and screen materials, and in the field of chemical fertilizer production, the screening equipment also plays a vital role.

[0003] In the prior art, the publication number: CN216225397U discloses a screening device for microbial fertilizer processing, which comprises a screening box body, a movable base is fixed to the bottom of the screening box body, a fixed base is connected to the right end of the movable base through a shaft, a circulating lifting mechanism is installed on the left side of the fixed base, a rotating shaft is vertically connected to the center shaft position of the screening box body, a plurality of breaking rods are arranged and fixed on the upper rotating shaft, four screen meshes and collection plates are arranged on the lower rotating shaft of the breaking rods, the upper parts of the four screen meshes and collection plates are respectively provided with side walls, a discharge port is arranged on each side wall, a feeding port is arranged on the upper end surface of the screening box body, a discharge port corresponding in height to the discharge port is arranged on the side surface of the screening box body, periodic screening and discharging are realized, and the screening device has the advantages of screening fertilizer particles of multiple specifications, breaking the fertilizer particles before screening, realizing periodic screening and discharging, ensuring complete screening and good use effect.

[0004] However, the device still has some problems. During the screening of chemical fertilizers, powdery chemical fertilizers are prone to produce dust. These dusts may fly and spread due to factors such as material stirring, collision and air flow during the screening process. If the chemical fertilizer dust is inhaled by the workers, it may cause damage to their respiratory systems, and long-term exposure may even cause occupational diseases. If the dust accumulates to a certain extent, it may cause fire and explosion when encountering open flame, which seriously threatens production safety. The device does not have a dustproof function during screening, which may cause the powdery chemical fertilizer to leak from the feeding port or produce dust, and there is a certain risk problem in use. Therefore, we disclose a screening mechanism with a dustproof structure to meet people's needs. UTILITY MODEL CONTENTS

[0005] The purpose of the present application is to provide a screening mechanism with a dustproof structure to solve the problem of dust generation during the screening of chemical fertilizers. The dust generated during the screening process can be dispersed due to factors such as material stirring, collision, and air flow. If the dust is inhaled by the workers, it may cause damage to the respiratory system, and long-term exposure may even cause occupational diseases. If the dust accumulates to a certain extent, it may cause fire and explosion when exposed to open flames, which seriously threatens production safety. The device does not have a dustproof function during screening, which may cause leakage or dust of the powder chemical fertilizer, and there is a certain risk of use.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a screening mechanism with a dustproof structure, comprising an inclined mechanism, the inclined output surface of the inclined mechanism is fixedly installed with a screening tank, a plurality of dust suction openings are formed on the surface of the screening tank, an adsorption opening is formed at the top end of the screening tank, and a dustproof mechanism is fixedly installed on the output surface of the inclined mechanism;

[0007] The dustproof mechanism comprises a dustproof box, the dustproof box is fixedly installed on the output surface of the inclined mechanism, a suction hole is formed on one side of the dustproof box, a conveying pipe is fixedly installed in the suction hole, the other end of the conveying pipe is fixedly installed with an integrated pipe, a plurality of suction holes are formed on one side of the integrated pipe, a suction pipe is fixedly installed in each of the plurality of suction holes, and the other end of each of the plurality of suction pipes is fixedly installed in the plurality of dust suction openings and the adsorption opening.

[0008] Preferably, a support is fixedly installed on the upper side of the dustproof box, a driving hole is formed on the upper side of the support, a fan blade is rotatably installed in the driving hole, a driving motor is fixedly installed on the upper side of the support, the output shaft of the driving motor is fixedly installed on the upper side of the fan blade, and a secondary filter plate is fixedly installed on the inner wall of the dustproof box.

[0009] Preferably, sliding openings are formed on both sides of the dustproof box, sliding blocks are slidingly installed in the two sliding openings, and a primary filter plate is fixedly installed on the opposite surface of each of the two sliding blocks.

[0010] Preferably, springs are fixedly installed on the upper side and the lower side of the sliding block, the other end of the spring is fixedly installed in the sliding opening, a transmission rod is rotatably installed on the inner wall of the dustproof box, and an extrusion plate for extruding the primary filter plate is fixedly installed on the surface of the transmission rod.

[0011] Preferably, the lower side of the fan blade is fixedly installed with a driving rod, the bottom end of the driving rod is fixedly installed with a secondary bevel gear, one end of the transmission rod is fixedly installed with a primary bevel gear, the primary bevel gear is engaged with the secondary bevel gear, and the surface of the secondary filter plate is provided with an avoiding hole facilitating avoiding the driving rod.

[0012] Preferably, the filter hole radius of the primary filter plate is greater than that of the secondary filter plate.

[0013] Preferably, the secondary filter plate is obliquely arranged in the dustproof box.

[0014] In conclusion, the technical effects and advantages of the utility model are as follows:

[0015] 1. In the utility model, the dustproof box forms a negative pressure state through the driving of the fan blade by the driving motor, and the negative pressure is transmitted to the plurality of suction pipes through the conveying pipe and the integrated pipe. The suction pipe is arranged in each screening area and crushing area in the screening tank, so that the dust generated in each area can be adsorbed. The dust is sucked into the dustproof box through the integrated pipe and the conveying pipe, and the dust is intercepted and collected through the obliquely arranged secondary filter plate in the dustproof box. The dust is collected, and the dustproof effect is achieved.

[0016] 2. In the utility model, the primary filter plate is arranged on the lower side of the secondary filter plate in the dustproof box, so that the inhaled dust can be preliminarily intercepted. The driving rod is driven to rotate by the fan blade, the primary bevel gear is driven to rotate by the driving rod, the secondary bevel gear is driven to rotate by the primary bevel gear, the transmission rod is driven to rotate by the secondary bevel gear, and the extrusion plate is driven to move by the transmission rod. The primary filter plate is extruded by the extrusion plate, and the primary filter plate is vibrated up and down under the action of the springs arranged on the upper and lower sides of the sliding block. The dust adhered to the filter holes of the secondary filter plate is knocked off, so that the filter holes of the primary filter plate are prevented from being blocked and the filtering efficiency is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is a sectional view of the screening tank in the utility model;

[0020] Figure 3 It is a sectional view of the dustproof box in the utility model;

[0021] Figure 4 For Figure 3 The enlarged structural schematic view of the A area in the middle.

[0022] In the figure: 1, tilting mechanism; 2, screening tank; 3, suction pipe; 4, integrated pipe; 5, conveying pipe; 6, dustproof box; 7, sliding block; 8, first-stage filter plate; 9, second-stage filter plate; 10, support; 11, fan blade; 12, driving motor; 13, driving rod; 14, transmission rod; 15, first-stage bevel gear; 16, second-stage bevel gear; 17, extrusion plate; 18, spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Reference Figures 1-4 Embodiment 1 shown in the figure

[0025] A screening mechanism with a dustproof structure, comprising a tilting mechanism 1, a screening tank 2 is fixedly installed on the tilting output surface of the tilting mechanism 1, a plurality of dust suction openings are formed on the surface of the screening tank 2, a suction opening is formed on the top end of the screening tank 2, and a dustproof mechanism is fixedly installed on the output surface of the tilting mechanism 1.

[0026] The dustproof mechanism comprises a dustproof box 6, the dustproof box 6 is fixedly installed on the output surface of the tilting mechanism 1, a suction hole is formed on one side of the dustproof box 6, a conveying pipe 5 is fixedly installed in the suction hole, one end of the conveying pipe 5 is fixedly installed with an integrated pipe 4, a plurality of suction holes are formed on one side of the integrated pipe 4, a plurality of suction pipes 3 are fixedly installed in the plurality of suction holes, the other end of the plurality of suction pipes 3 is fixedly installed in the plurality of dust suction openings, the other end of the plurality of suction pipes 3 is fixedly installed in the suction opening, the tilting mechanism 1 is consistent with the tilting mechanism 1 used in the above-mentioned reference file, and the tilting output surface is driven to tilt through a transmission mechanism such as a motor, so that the effect of pouring the screening tank 2 is achieved. The dustproof mechanism and the screening tank 2 in the device are both installed on the tilting output surface of the tilting mechanism 1, and the screening tank 2 is provided with related crushing components and screening components, wherein the crushing components are located on the upper layer of the screening tank 2, the dust suction openings are formed on the upper side of the screening tank 2 and the suction pipes 3 are installed, and the screening components are provided with three levels, and the dust suction openings are formed on each screening layer and are provided with the suction pipes 3.

[0027] In use, when the screening tank 2 is screening, the driving motor 12 is started to drive the fan blade 11 to rotate, so that the dustproof box 6 forms a negative pressure state, and the negative pressure is transmitted to the plurality of suction pipes 3 through the conveying pipe 5 and the integrated pipe 4. By arranging the suction pipes 3 in each screening area and crushing area in the screening tank 2, the dust generated in each area can be adsorbed, so that the dust is sucked into the dustproof box 6 through the integrated pipe 4 and the conveying pipe 5, and the dust is intercepted and collected by the second filter plate 9 arranged obliquely in the dustproof box 6. The dust is collected, and the dustproof effect is achieved.

[0028] Embodiment 2

[0029] As shown in Figure 2 Figure 3 The upper side of the dustproof box 6 is fixedly installed with a support 10, the upper side of the support 10 is provided with a driving hole, the driving hole is rotatably installed with a fan blade 11, the upper side of the support 10 is fixedly installed with a driving motor 12, the output shaft of the driving motor 12 is fixedly installed on the upper side of the fan blade 11, and the inner wall of the dustproof box 6 is fixedly installed with a second filter plate 9.

[0030] As shown in Figure 2 and 4 The two sides of the dustproof box 6 are provided with sliding openings, and the two sliding openings are slidably installed with sliding blocks 7. The opposite surfaces of the two sliding blocks 7 are fixedly installed with first filter plates 8.

[0031] As shown in Figure 4 The upper side and the lower side of the sliding block 7 are fixedly installed with springs 18, the other end of the spring 18 is fixedly installed in the sliding opening, the inner wall of the dustproof box 6 is rotatably installed with a transmission rod 14, and the surface of the transmission rod 14 is fixedly installed with an extrusion plate 17 for extruding the first filter plate 8.

[0032] As shown in Figure 3 The lower side of the fan blade 11 is fixedly installed with a driving rod 13, the bottom end of the driving rod 13 is fixedly installed with a second bevel gear 16, one end of the transmission rod 14 is fixedly installed with a first bevel gear 15, the first bevel gear 15 is engaged with the second bevel gear 16, and the surface of the second filter plate 9 is provided with an avoiding hole for avoiding the driving rod 13.

[0033] The fan blade 11 drives the driving rod 13 to rotate, the driving rod 13 drives the first bevel gear 15 to rotate, the first bevel gear 15 drives the second bevel gear 16 to rotate, the second bevel gear 16 drives the transmission rod 14 to rotate, and the transmission rod 14 drives the extrusion plate 17 to move, so that the extrusion plate 17 extrudes the first filter plate 8. Under the action of the springs 18 arranged on the upper side and the lower side of the sliding block 7, the first filter plate 8 vibrates up and down, the dust attached to the filter holes of the second filter plate 9 is knocked off, and the first filter plate 8 is prevented from being blocked to reduce the filtering efficiency.

[0034] AsFigure 3 As shown, the filtering hole radius of the first filtering plate 8 is greater than that of the second filtering plate 9, the second filtering plate 9 is arranged obliquely in the dustproof box 6, the lower side of the second filtering plate 9 in the dustproof box 6 is provided with the first filtering plate 8, the inhaled dust can be preliminarily intercepted, and the oblique design of the second filtering plate 9 can prevent the dust from being easily attached to the surface of the second filtering plate 9 to cause blockage.

[0035] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A screening mechanism with a dustproof structure, comprising a tilting mechanism (1), characterized in that: A screening tank (2) is fixedly mounted on the inclined output surface of the tilting mechanism (1), a plurality of dust suction ports are provided on the surface of the screening tank (2), a suction port is provided at the top of the screening tank (2), and a dust prevention mechanism is fixedly mounted on the output surface of the tilting mechanism (1); The dustproof mechanism comprises a dustproof box (6), the dustproof box (6) is fixedly mounted on the output surface of the tilting mechanism (1), one side of the dustproof box (6) is provided with an adsorption hole, a delivery pipe (5) is fixedly mounted in the adsorption hole, an integrated pipe (4) is fixedly mounted on the other end of the delivery pipe (5), one side of the integrated pipe (4) is provided with a plurality of suction holes, a suction pipe (3) is fixedly mounted in each of the plurality of suction holes, the other ends of the plurality of suction pipes (3) are fixedly mounted in a plurality of dust suction ports, and the other ends of the suction pipes (3) are fixedly mounted in the adsorption port.

2. The screening mechanism with a dustproof structure according to claim 1, characterized in that: A bracket (10) is fixedly mounted on the upper side of the dustproof box (6), a driving hole is opened on the upper side of the bracket (10), a fan blade (11) is rotatably mounted in the driving hole, a driving motor (12) is fixedly mounted on the upper side of the bracket (10), an output shaft of the driving motor (12) is fixedly mounted on the upper side of the fan blade (11), and a secondary filter plate (9) is fixedly mounted on the inner wall of the dustproof box (6).

3. The screening mechanism with a dustproof structure according to claim 2, characterized in that: Slide openings are provided on both sides of the dustproof box (6), and sliders (7) are slidably installed in the two slide openings. A primary filter plate (8) is fixedly installed on the opposite surfaces of the two sliders (7).

4. The screening mechanism with a dustproof structure according to claim 3, characterized in that: A spring (18) is fixedly mounted on the upper and lower sides of the slider (7), and the other end of the spring (18) is fixedly mounted in the sliding opening. A transmission rod (14) is rotatably mounted on the inner wall of the dustproof box (6), and an extrusion plate (17) for extruding the primary filter plate (8) is fixedly mounted on the surface of the transmission rod (14).

5. The screening mechanism with a dustproof structure according to claim 4, characterized in that: A driving rod (13) is fixedly mounted on the lower side of the fan blade (11), a secondary bevel gear (16) is fixedly mounted on the bottom end of the driving rod (13), a primary bevel gear (15) is fixedly mounted on one end of the transmission rod (14), the primary bevel gear (15) is meshed with the secondary bevel gear (16), and a relief hole is provided on the surface of the secondary filter plate (9) for facilitating relief of the driving rod (13).

6. The screening mechanism with a dustproof structure according to claim 5, characterized in that: The radius of the filter holes of the primary filter plate (8) is greater than the radius of the filter holes of the secondary filter plate (9).

7. The screening mechanism with a dustproof structure according to claim 2, characterized in that: The secondary filter plate (9) is arranged obliquely in the dustproof box (6).

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