A feeding device

Abstract

The present invention provides a feeding device, comprising a silo body, a stirring assembly, at least one vibration assembly, at least one roller feeding assembly and a screw feeder, wherein the stirring assembly is installed on the vertical central axis of the silo body and extends from the top of the silo body to the bottom of the silo body, and is used to stir the material; the vibration assembly is installed on the side wall of the silo body, and is used to vibrate the material so that the material can descend smoothly; the roller feeding assembly is horizontally distributed at the bottom of the silo body, located below the stirring assembly, and is used to carry the material entering the feeding device and make it roll downward; the screw feeder is located below the bottom of the silo body, and is used to send the material that falls to the bottom of the silo body to the next process.

Description

Technical Field

[0001] The invention relates to the field of feeding equipment for filamentary materials, and in particular to a feeding device suitable for plastic, filamentary and fibrous materials. Background Art

[0002] In the comprehensive treatment process of solid waste, plastic, filamentous, and fibrous wastes are often encountered, especially plastic waste separated from plastic protective plastic packaging bags and composite packaging materials, cable production waste plastics, etc., which account for an increasing proportion of solid waste. Due to the polymorphism of plastic, filamentous, and fibrous wastes, such as light density, filamentous, and fibrous, materials will agglomerate or arch during the feeding process, resulting in unsmooth feeding and uneven distribution of materials, which will eventually lead to uneven feeding or material breakage, affecting the progress of the overall process. In particular, plastic materials will melt under lower temperature conditions, which is more likely to cause poor feeding. At present, there has been no report on a technology that can solve the problems of agglomeration and poor feeding of plastic, filamentous, and fibrous materials during the feeding process. Summary of the invention

[0003] In order to solve the above problems in the prior art, the present invention provides a feeding device, which can achieve smooth and efficient feeding of plastic, filamentary, fibrous and other materials, thereby solving the above problems.

[0004] The feeding device of the present invention comprises a silo body, a stirring assembly, at least one vibration assembly, at least one roller feed assembly and a screw feeder, wherein

[0005] The stirring assembly is installed on the vertical central axis of the silo body and extends from the top of the silo body to the bottom of the silo body, and is used to stir the material;

[0006] The vibration assembly is installed on the side wall of the silo body and is used to vibrate the material so that the material can move downward smoothly;

[0007] The roller unloading assembly is horizontally distributed at the bottom of the silo body, below the stirring assembly, and is used to carry the material entering the feeding device and make it roll downward;

[0008] The screw feeder is located below the bottom of the silo body (ie, below the stirring assembly) and is used to feed the material that falls to the bottom of the silo body to the next process.

[0009] In some embodiments, the stirring assembly includes a stirring motor, a stirring shaft and a plurality of stirring rods, wherein the motor is connected to the stirring shaft for driving the stirring shaft to rotate; the stirring rods are fixedly connected to the stirring shaft in a horizontal direction; and the length of the stirring rods decreases downward from the feed end of the silo body.

[0010] In some embodiments, the vibration assembly includes a vibration plate, a vibrator, and a spring.

[0011] The vibration plate is located on one side of the inner wall of the silo body, the vibrator is located on one side of the outer wall of the silo body, and the vibrator is connected to the vibration plate through a flexible connector to drive the vibration of the vibration plate;

[0012] The lower end of the vibration plate is directly fixed on the inner wall of the silo body, the upper end of the vibration plate is connected to one end of the spring, and the other end of the spring is fixedly connected to the inner wall of the silo body, so that the vibration plate can move elastically relative to the inner wall of the silo body.

[0013] In some embodiments, the vibration assembly also includes a vibration baffle, a vibration plate baffle is arranged above the vibration plate, one end of the vibration plate baffle is fixed to the inner wall of the silo body, and the other end of the vibration plate baffle extends downward as a free end to cover the opening formed by the vibration plate and the inner wall of the silo body.

[0014] In some embodiments, the roller blanking assembly includes a rotary motor and a roller, and the rotary motor is used to drive the roller to rotate.

[0015] In some embodiments, the screw feeder includes a screw motor and a feeding screw, wherein the screw motor is used to drive the feeding screw to rotate, wherein the pitch of the feeding screw gradually decreases along the screw feeding direction, so that the material is gradually compacted during the conveying process.

[0016] In some embodiments, the longest pitch of the feed screw is 2-3 times the shortest pitch.

[0017] In some embodiments, the vibration frequency of the vibrator ranges from 10 Hz to 50 Hz.

[0018] In some embodiments, the rotation speed of the stirring bar ranges from 1 to 10 rpm.

[0019] In some embodiments, the roller has a rotation speed ranging from 5 to 30 rpm.

[0020] The inventors specially designed the feeding device of the present invention in view of the characteristics of materials such as plastics, filaments, fibers, etc. that are polymorphic and easily melt-bonded when heated. By adopting the feeding device of the present invention, materials that are polymorphic and easily melt-bonded when heated can be fed efficiently and smoothly, solving the problems of unsmooth material feeding and uneven distribution caused by phenomena such as arching, bridging, and softening and bonding when heated in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the feeding device of the present invention;

[0022] Figure 2 It is a schematic structural diagram of a vibration component in a feeding device of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the roller unloading assembly in the feeding device of the present invention.

[0024] Description of reference numerals:

[0025] 1- silo body; 2- stirring rod; 3- vibration plate; 4- vibrator; 5- flexible connector; 6- roller shaft; 7- stirring motor; 8- screw motor; 9- feeding screw; 10- screw cylinder; 31- vibration plate baffle; 32- spring. 41- blind plate; 42- metal plate; 51- flexible connector flange; 6- roller shaft; 61- rotating motor; 62- supporting roller DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below.

[0028] The inventor specially designed the feeding device of the present invention in view of the characteristics of plastic, filamentous, fibrous and other materials that are polymorphic and easily melted and bonded when heated.

[0029] The feeding device of the present invention comprises a silo body, a stirring assembly, at least one vibration assembly, at least one roller feed assembly and a screw feeder, wherein

[0030] The stirring assembly is installed on the vertical central axis of the silo body and extends from the top of the silo body to the bottom of the silo body, and is used to stir the material;

[0031] The vibration assembly is installed on the side wall of the silo body and is used to vibrate the material so that the material can move downward smoothly;

[0032] The roller unloading assembly is horizontally distributed at the bottom of the silo body, below the stirring assembly, and is used to carry the material entering the feeding device and make it roll downward;

[0033] The screw feeder is located below the bottom of the silo body (ie, below the stirring assembly) and is used to feed the material that falls to the bottom of the silo body to the next process.

[0034] The stirring assembly includes a stirring motor, a stirring shaft and a plurality of stirring rods; the stirring motor is connected to the stirring shaft for driving the stirring shaft to rotate; the stirring rods are fixedly connected to the stirring shaft in a horizontal direction; the length of the stirring rods decreases downward from the feed end of the silo body.

[0035] The vibration assembly includes a vibration plate, a vibrator and a spring,

[0036] The vibration plate is located on one side of the inner wall of the silo body, and the vibrator is located on one side of the outer wall of the silo body. The vibrator is connected to the vibration plate through a flexible connector to drive the vibration of the vibration plate. When the vibrator is started, the vibration plate vibrates. Since the vibration plate is connected to the spring, the vibration plate deforms the spring when it vibrates, causing the vibration plate to reciprocate relative to the inner wall of the silo body, thereby driving the material falling on the vibration plate to vibrate downward.

[0037] In one embodiment, the feeding device of the present invention is as follows Figure 1 As shown, the silo body 1 is in an inverted cone shape, and the angle between the side wall of the silo body 1 and the horizontal direction is greater than 75 degrees.

[0038] The stirring assembly includes a stirring motor 7, a stirring shaft and a plurality of stirring rods 2; the stirring motor 7 is connected to the stirring shaft for driving the stirring shaft to rotate; the stirring rods 2 are fixedly connected to the stirring shaft in a horizontal direction; the length of the stirring rods 2 decreases downward from the feeding end of the silo body 1.

[0039] like Figure 1 As shown, the vibration assembly includes a vibration plate 3 , a vibrator 4 and a spring 32 .

[0040] The vibration plate 3 is located on one side of the inner wall of the silo body 1, and the vibrator 4 is located on one side of the outer wall of the silo body 1. The vibrator 4 is connected to the vibration plate 3 through a soft connector 5 so as to drive the vibration of the vibration plate 3. When the vibrator 4 is started, the vibration plate 3 vibrates. Since the vibration plate 3 is connected to the spring 32, the vibration plate 3 deforms the spring 32 during vibration, causing the vibration plate 3 to reciprocate relative to the inner wall of the silo body, thereby driving the material falling on the vibration plate 3 to vibrate downward.

[0041] In one embodiment, the structure of the vibration assembly is as follows Figure 1 and Figure 2 The vibration assembly includes a vibration plate 3, a spring 32, a vibrator 4, a blind plate 41, a metal plate 42 and a flexible connection flange 51.

[0042] The vibrator 4 is welded to the upper surface of the blind plate 41 ; the metal plate 42 is welded to the lower surface of the blind plate 41 ; the metal plate 42 is welded to the vibration plate 3 ; and the blind plate 41 is connected to the flexible connection flange 51 .

[0043] The lower end of the vibration plate 3 is directly fixed on the inner wall of the silo body 1, and the upper end of the vibration plate 3 is connected to one end of the spring 32, and the other end of the spring 32 is fixedly connected to the inner wall of the silo body 1. Thus, the vibration plate 3 forms a certain angle with the inner wall of the silo body 1, so that when the vibration plate 3 vibrates under the drive of the vibrator 4, it can reciprocate relative to the inner wall of the silo body.

[0044] A vibration plate baffle 31 is provided above the vibration plate 3, one end of the vibration plate baffle 31 is fixed on the inner wall of the silo body 1, and the other end of the vibration plate baffle 31 extends downward as a free end. By providing the vibration plate baffle 31, the opening formed by the upper end of the vibration plate 3 and the inner wall of the silo body 1 is blocked by the vibration plate baffle 31 to prevent material from entering the opening and affecting the vibration effect of the vibration plate 3.

[0045] In some embodiments, the vibration frequency of the vibrator 4 is in the range of 10 Hz-50 Hz.

[0046] In one embodiment, a plurality of the roller feed assemblies are located at the bottom of the silo body and arranged horizontally.

[0047] In some embodiments, the roller blanking assembly is as follows Figure 1 and Figure 3 As shown, four roller blanking assemblies are arranged horizontally. The roller blanking assemblies include a roller 6, a rotating motor 61 and a supporting roller 62.

[0048] Driven by the rotating motor 61, the rollers 6 arranged from left to right rotate clockwise, counterclockwise, clockwise, and counterclockwise respectively, so that the roller unloading components rotate in pairs to stir the materials, so that the materials that are easy to bridge and arch can be unloaded smoothly under the mechanical drive of the roller unloading components. The rotating motor 61 is connected to the roller 6; the supporting roller 62 is welded to the roller 6; the two ends of the roller 6 are connected to the warehouse wall, and the roller 6 is rotatable at the connection with the warehouse wall. The two ends of the roller 6 are connected to the warehouse wall to support and fix the roller unloading component. The two ends of the roller 6 are connected to the warehouse wall to support and fix the roller unloading component. The rotating motor 61 is used to drive the roller 6 to rotate. The multiple supporting sticks 62 on the roller 6 can stir the materials under the rotating condition to play the role of shifting the materials. In some embodiments, the rotation speed of the roller 6 ranges from 5 to 30 revolutions / min.

[0049] In some embodiments, a stirring component such as Figure 1 As shown, the stirring assembly includes a stirring shaft and a stirring rod 2, and the stirring shaft is located at the axial center of the silo body 1 and is perpendicular to the horizontal direction. The stirring rod 2 performs horizontal stirring under the rotation of the stirring shaft, and the length of the stirring rod 2 gradually increases from bottom to top as the cross-sectional area of ​​the silo body increases, so that the stirring range gradually increases; in some embodiments, the rotation speed range of the stirring rod 2 is 1-10 rpm.

[0050] In some embodiments, the screw feeder is Figure 1 As shown, the screw feeder is arranged below the roller feed assembly. The screw feeder includes a screw motor 8 and a feed screw 9, and the screw motor 8 is used to drive the feed screw 9 to rotate. A screw barrel 10 adapted to the feed screw 9 is provided at the bottom of the silo body 1, the screw motor 8 is located outside the screw barrel 10, and the feed screw 9 is located inside the screw barrel 10, and the connection between the screw motor 8 and the feed screw 9 passes through the side wall of the screw barrel 10. The screw barrel 10 is welded to the silo wall of the silo body 1.

[0051] The feed screw 9 is located directly below the roller 6. The axial direction of the feed screw 9 is arranged perpendicularly to the axial direction of the roller 6 in the horizontal direction. The length of the feed screw 9 extends from the first roller to the last roller until the material is pushed to the next process.

[0052] Preferably, the feed screw 9 is a variable pitch screw, the pitch of which gradually decreases along the screw feeding direction, so that the material is gradually compacted during the conveying process. In some embodiments, the longest pitch of the feed screw is 2-3 times the shortest pitch.

[0053] The following uses plastic as a material to illustrate the use of the feeding device of the present invention. Specifically, the following steps are included:

[0054] 1) Send plastic waste materials with a particle size of less than 20 mm into the silo;

[0055] 2) Turn on the vibration plate motor, and the vibration plate vibrates under the drive of the vibrator, with a vibration frequency of 15 Hz, and the vibration acts on the plastic material, causing the plastic material to vibrate downward;

[0056] 3) Turn on the stirring motor. Driven by the stirring motor, the stirring rod stirs the plastic material in the horizontal direction. The stirring rod rotates at a speed of 3 revolutions per minute. The plastic material does not form an arch or bridge during the falling process. The plastic material is always in a dynamic state in the silo and falls smoothly to the bottom of the silo under the action of gravity.

[0057] 4) Turn on the rotating motor. Driven by the rotating motor, the roller shaft rotates at a speed of 10 revolutions per minute. The plastic material falling onto the roller shaft falls evenly into the screw feeder under the rotation of the roller shaft.

[0058] 5) The plastic material falling into the screw feeder is fed smoothly with the advancement of the feeding screw. During the advancement process, the pitch of the feeding screw gradually decreases, and the plastic material is gradually compacted, with a compression ratio of 2.

[0059] The feeding device of the present invention realizes continuous and stable feeding of materials such as plastics. When the feeding device of the present invention is subsequently connected to a pyrolysis process, the phenomenon of high-temperature pyrolysis oil and gas flowing back into the silo will not occur. The feeding device of the present invention is efficient and reliable.

[0060] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A feeding device, characterized in that: It includes a silo body, a stirring assembly, at least one vibration assembly, at least one roller feeding assembly and a screw feeder, wherein the stirring assembly is installed on the vertical central axis of the silo body and extends from the top of the silo body to the bottom of the silo body for stirring the material; The vibration assembly is installed on the side wall of the silo body and is used to vibrate the material so that the material can move downward smoothly; The roller unloading assembly is horizontally distributed at the bottom of the silo body, below the stirring assembly, and is used to carry the material entering the feeding device and make it roll downward; The screw feeder is located below the bottom of the silo body, and is used to feed the material that falls to the bottom of the silo body to the next process; the stirring assembly includes a stirring motor, a stirring shaft and a plurality of stirring rods, and the motor is connected to the stirring shaft to drive the stirring shaft to rotate; the stirring rods are fixedly connected to the stirring shaft in the horizontal direction; The length of the stirring rod decreases downward from the feeding end of the silo body; the vibration assembly includes a vibration plate, a vibrator and a spring, the vibration plate is located on one side of the inner wall of the silo body, the vibrator is located on one side of the outer wall of the silo body, and the vibrator is connected to the vibration plate through a soft connector to drive the vibration of the vibration plate; The lower end of the vibration plate is directly fixed on the inner wall of the silo body, the upper end of the vibration plate is connected to one end of the spring, and the other end of the spring is fixedly connected to the inner wall of the silo body, so that the vibration plate can elastically move relative to the inner wall of the silo body; the vibration assembly also includes a vibration baffle, a vibration plate baffle is arranged above the vibration plate, one end of the vibration plate baffle is fixed on the inner wall of the silo body, and the other end of the vibration plate baffle extends downward as a free end to cover the opening formed by the vibration plate and the inner wall of the silo body; the roller unloading assembly includes a rotating motor and a roller, and the rotating motor is used to drive the roller to rotate; the screw feeder includes a screw motor and a feeding screw, and the screw motor is used to drive the feeding screw to rotate, wherein the pitch of the feeding screw gradually decreases along the screw feeding direction, so that the material is gradually compacted during the conveying process.

2. The feeding device according to claim 1, characterized in that: The longest pitch of the feed screw is 2-3 times the shortest pitch.

3. The feeding device according to claim 1 or 2, characterized in that: The vibration frequency range of the vibrator is 10 Hz-50 Hz.

4. The feeding device according to claim 1 or 2, characterized in that: The rotation speed of the stirring rod ranges from 1 to 10 rpm.

5. The feeding device according to claim 1 or 2, characterized in that: The rotation speed of the roller shaft ranges from 5 to 30 revolutions per minute.

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