Anti-segregation batching sieve with dust removal device

Abstract

The invention discloses an anti-segregation batching screen with a dust removal device, which is characterized in that the anti-segregation batching screen comprises a casing, a screen mesh, brushes, swing arms, a rotating shaft, an eccentric link mechanism and a motor driving device, the screen mesh is arranged in the casing, one or more groups of swing arms are arranged on the rotating shaft, the brushes parallel to the cross section of the screen mesh are arranged at the end parts of the swing arms, and the brushes are in movable contact with the screen mesh; the motor driving device is connected with and drives the eccentric connecting rod mechanism to reciprocate, and the rotating shaft is connected with the eccentric connecting rod mechanism and is driven by the eccentric side rod mechanism to reciprocate by a certain angle so as to drive the swing arm to swing back and forth by a certain angle. The vibrating screen is good in stability, the segregation phenomenon of materials can be prevented, and the vibrating screen has a good screening effect on light and fine materials.

Description

Technical Field

[0001] The invention relates to the technical field of screening equipment, and more particularly to an anti-segregation batching screen. Background Art

[0002] In many industries such as medicine, chemical industry, powder metallurgy, grinding wheel manufacturing, fine ceramics, composite materials, etc., it is necessary to combine several different materials in a certain proportion to obtain the expected performance. This combination is also called a formula, and the process of realizing the formula is called batching. Any formula requires all the materials in it to be mixed evenly, so they must be mixed after batching. However, during the mixing process, due to the differences in the shape and density of the materials, some materials will be relatively concentrated and agglomerated, so screening is required after mixing. Common screening equipment is various vibrating screens, such as linear vibrating screens, circular vibrating screens, swing screens, drum screens, electromagnetic vibrating screens, ultrasonic screens, etc. All current screening machines, without exception, use the gravity of the material itself to vibrate the material so that the material passes through the mesh of the screen installed on the screen to achieve material screening. These screening methods have an insurmountable defect: because of the difference in density of the materials in the formula, segregation will occur during the vibration process. The material with high density will tend to the lower part of the material layer, the material with low density will tend to the upper part of the material layer, the material with nearly circular shape will tend to the lower part of the material layer, and the material with irregular shape will tend to the upper part of the material layer. The material with high density diffuses to the circumference while the material with low density gathers in the center of the screen surface. In this way, the mixed materials not only fail to become more uniform after screening, but also produce segregation, which affects the quality of the final product. For this reason, it is necessary to further improve the existing technology. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and to provide an anti-segregation batching screen with a dust removal device, which can effectively prevent the formation of segregation and at the same time break up the materials that agglomerate during the mixing process so that they can be dispersed in the system.

[0004] The present invention adopts the following technical solutions to achieve the above-mentioned purpose: an anti-segregation batching screen with a dust removal device, characterized in that it includes a casing, a screen, a brush, a swing arm, a rotating shaft, an eccentric connecting rod mechanism, and a motor drive device. The screen is arranged in the casing, and a group of swing arms are arranged on the rotating shaft. A brush is arranged at the end of the swing arm. The brush is parallel to the cross section of the screen and is in active contact with the screen; the motor drive device is connected to and drives the eccentric connecting rod mechanism to reciprocate, and the rotating shaft is connected to the eccentric connecting rod mechanism and reciprocates at a certain angle under the drive of the eccentric side rod mechanism, thereby driving the swing arm to swing back and forth at a certain angle.

[0005] As a further explanation of the above scheme, the swing arm adopts a retractable structure, including an upper swing arm, a lower swing arm and a spring. The upper swing arm is telescopically connected to the lower swing arm, and the spring is connected between the lower swing arm and the brush. Under the action of the spring, the brush applies a certain pressure to the screen and can cross a material layer of a certain thickness.

[0006] Furthermore, the casing includes a hood and a chassis, the chassis is arranged below the hood, the screen is arranged in the chassis, the chassis is provided with a discharge port, and the screened material is collected by the chassis and discharged from the discharge port at the bottom of the chassis.

[0007] Furthermore, the lower portion of the discharge port is connected to one of a packaging bag, a packaging box and a packaging barrel.

[0008] Furthermore, a feed port is provided on one side of the hood, and a coarse filter chamber is provided on the other side of the hood. The area of ​​the coarse filter chamber is larger than the area of ​​the feed port. Filter cotton or filter cloth and an air filter element are provided in the coarse filter chamber. The air entering from the feed port is decelerated here and discharged through the coarse filter screen. The dust-containing gas undergoes the first filtration here.

[0009] Furthermore, a sieve cavity is provided in the casing, an exhaust port is provided on the hood, the exhaust port is connected to a group of dust filter bags through a pipeline, and a dust removal pipeline fan is provided in the pipeline to discharge the gas and form a negative pressure in the sieve cavity.

[0010] Furthermore, the screen is a semicircular downwardly concave mesh structure, and the swing arm swings with the center of the screen as the center of the circle.

[0011] The beneficial effects that can be achieved by the present invention using the above technical solution are:

[0012] The present invention adopts a batching screen structure which is mainly composed of a casing, a screen, a brush, a swing arm, a rotating shaft, an eccentric connecting rod mechanism and a motor driving device. The screen is arranged in the casing, and a brush parallel to the cross section of the screen is arranged at the end of the swing arm, and the brush is in active contact with the screen. The motor driving device is connected to drive the eccentric connecting rod mechanism, and the rotating shaft is connected to the eccentric connecting rod mechanism. Driven by the eccentric side rod mechanism, the swing arm is driven to make a reciprocating rotation at a certain angle, thereby driving the swing arm to swing back and forth at a certain angle. There is no vibration in the material screening process, which can prevent the material from segregating and ensure the uniformity of each component of the material.

[0013] 2. The agglomerates generated during the material mixing process can be broken and dispersed under the rubbing and pressing of the brush, which can effectively solve the adverse effects caused by the agglomeration of materials and improve the uniformity of the materials.

[0014] 3. It has a good screening effect on light and fine materials. The brush is used to apply a certain pressure on the material to force the material to pass through the screen, which effectively solves the screening problem of light and fine materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the present invention.

[0017] Explanation of the accompanying drawings: 1, casing 1-1, hood 1-11, feed port 1-12, coarse filter chamber 1-13, filter layer 1-14, exhaust port 1-2, chassis 1-21, discharge port 1-3, sealing ring 2, screen 3, swing arm 3-1, upper swing arm 3-2, lower swing arm 3-3, spring 4, rotating shaft 5, eccentric connecting rod mechanism 6, motor drive device 7, sieve chamber 8, packaging bag 9, brush 10, dust filter bag 11, dust removal duct fan 12, duct. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0019] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "at least" means one or more, unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the invention, unless otherwise specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “below”, and “above” a second feature includes that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “above”, “below”, and “below” a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] The following is a further description of the specific implementation of the present invention in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the present invention are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the present invention, but cannot be understood as limiting the present invention.

[0023] like Figure 1-Figure 2 As shown, the present invention is an anti-segregation batching screen with a dust removal device, including a casing 1, a screen 2, a swing arm 3, a rotating shaft 4, an eccentric connecting rod mechanism 5, and a motor drive device 6. The screen 2 is arranged in the casing 1, and a screen cavity 7 is arranged in the casing 1. In this embodiment, the casing 1 includes a hood 1-1 and a chassis 1-2, the chassis 1-2 is arranged below the hood 1-1, and a sealing ring 1-3 is arranged between the hood 1-1 and the chassis 1-2. The screen 2 is arranged in the chassis 1-2, and the chassis 1-2 is provided with a discharge port 1-21. The screened material is collected by the chassis and discharged from the discharge port at the bottom of the chassis. The screen 2 is a semicircular mesh structure concave downward, and the swing arm 3 swings with the center of the screen as the center of the circle. The lower part of the discharge port 1-21 is connected to a packaging bag 8, and the screening process is completed. It is worth noting that the packaging bag 8 can also be replaced by a packaging box or a packaging barrel. The end of the swing arm 3 is provided with a plurality of groups of brushes 9 parallel to the cross section of the screen 2, and the brushes 9 are in active contact with the screen 2; the motor drive device 6 is connected to drive the eccentric connecting rod mechanism 5, and the rotating shaft 4 is connected to the eccentric connecting rod mechanism 5, and the swing arm is driven by the eccentric connecting rod mechanism 5 to make a certain angle of reciprocating rotation, thereby driving the swing arm to swing back and forth at a certain angle. The motor drive device 6 adopts a reduction motor to provide power for the eccentric connecting rod mechanism. The swing arm 3 adopts a telescopic structure, including an upper swing arm 3-1, a lower swing arm 3-2 and a spring 3-3. The lower swing arm is movably sleeved outside the upper swing arm, so that the upper swing arm and the lower swing arm are telescopically connected, and the spring is connected between the lower swing arm and the brush. Under the action of the spring, the brush applies a certain pressure to the screen and can cross a material layer of a certain thickness.

[0024] A feed port 1-11 is provided on one side of the hood 1-1, and a coarse filter chamber 1-12 is provided on one side of the hood. The area of ​​the coarse filter chamber is larger than that of the feed port. A filter layer 1-13 is provided in the coarse filter chamber 1-12. The filter layer is made of filter cotton, filter cloth, and air filter element. The air entering from the feed port is decelerated here and discharged through the coarse filter screen. The dust-containing gas is filtered for the first time here.

[0025] An exhaust port 1-14 is provided on the hood 1-1, and the exhaust port is connected to a group of dust filter bags 10 through a pipeline 12. A dust removal pipeline fan 11 is provided in the pipeline to discharge the gas and form a negative pressure in the sieve cavity.

[0026] The principle of this technical solution is.

[0027] 1. After the material enters from the feed port, it falls into the screen cavity. The brush moves back and forth on the screen surface, driving the material to move back and forth on the screen surface. During this process, the material passes through the screen.

[0028] 2. The brush exerts a certain pressure on the material under the action of the spring, forcing the material to pass through the screen; in this process, the material can pass through the screen mesh without relying on the gravity of the material.

[0029] 3. The arrangement of the concave semicircular screen keeps the material in the brush movement area. When the brush reaches the end of the swing, part of the material may be above the brush, but when the brush moves in the opposite direction, this part of the material automatically falls back to the brush movement area due to the concave surface. The flat screen cannot achieve this effect.

[0030] The beneficial effects of the present invention are:

[0031] 1. There is no vibration during the material screening process, which can prevent the material from segregating and ensure the uniformity of the various components of the material.

[0032] 2. The agglomerates generated during the material mixing process can be broken and dispersed under the rubbing and pressing of the brush, which can effectively solve the adverse effects caused by the agglomeration of materials and improve the uniformity of the materials.

[0033] 3. It has a good screening effect on light and fine materials. As we all know, light materials are difficult to overcome the friction of the mesh and pass through the mesh due to their low density and light weight; and fine materials are easy to form an arch on the mesh and are also difficult to pass through the mesh due to their light weight. The present invention uses a brush to apply a certain pressure to the material to force the material to pass through the screen, which solves the screening problem of light and fine materials.

[0034] 4. Chemical industry, powder metallurgy industry, fine ceramics industry, grinding wheel and abrasive tool manufacturing industry, pharmaceutical industry, textile industry, composite materials industry and many other industries need to mix some fine and light materials. After mixing, they need to be screened to increase the uniformity and reliability of the mixing. The anti-segregation batching screen with a dust removal device of the present invention solves the process difficulties of these industries well.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An anti-segregation batching screen with a dust removal device, characterized in that: It includes a casing, a screen, a brush, a swing arm, a rotating shaft, an eccentric connecting rod mechanism, and a motor driving device. The screen is arranged in the casing. A group or array of swing arms is arranged on the rotating shaft. A brush parallel to the cross section of the screen is arranged at the end of the swing arm. The brush is in active contact with the screen. The motor driving device is connected to and drives the eccentric connecting rod mechanism. The rotating shaft is connected to the eccentric connecting rod mechanism. Driven by the eccentric connecting rod mechanism, the rotating shaft makes a reciprocating rotation at a certain angle, thereby driving the swing arm to swing back and forth at a certain angle.

2. The anti-segregation batching screen with dust removal device according to claim 1, characterized in that: The swing arm adopts a telescopic structure, comprising an upper swing arm, a lower swing arm and a spring. The upper swing arm is telescopically connected to the lower swing arm, and the spring is connected between the lower swing arm and the brush.

3. The anti-segregation batching screen with dust removal device according to claim 1, characterized in that: The chassis includes a hood and a chassis. The chassis is arranged below the hood. The screen is arranged in the chassis. The chassis is provided with a discharge port. The screened material is collected by the chassis and discharged from the discharge port at the bottom of the chassis.

4. The anti-segregation batching screen with dust removal device according to claim 3, characterized in that: The lower part of the discharge port is connected with one of a packaging bag, a packaging box and a packaging barrel.

5. The anti-segregation batching screen with dust removal device according to claim 1, characterized in that: A feed port is provided on one side of the hood, and a coarse filter chamber is provided on the other side of the hood. The area of ​​the coarse filter chamber is larger than that of the feed port. Filter cotton or filter cloth and an air filter element are arranged in the coarse filter chamber. The air entering from the feed port is decelerated here and discharged through the coarse filter screen. The dust-containing gas is filtered for the first time here.

6. The anti-segregation batching screen with dust removal device according to claim 1, characterized in that: A sieve cavity is arranged in the casing, an exhaust port is arranged on the hood, the exhaust port is connected to a group of dust filter bags through a pipeline, and a dust removal pipeline fan is arranged in the pipeline to discharge the gas and form a negative pressure in the sieve cavity.

7. The anti-segregation batching screen with a dust removal device according to claim 1, characterized in that: The screen is a semicircular, downwardly concave mesh structure, and the swing arm swings around the center of the screen.

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