CN107413617B

CN107413617B - Screen vibrating bagasse depither

Info

Publication number: CN107413617B
Application number: CN201710284996.7A
Authority: CN
Inventors: 李丽霞; 陈星智
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2017-04-27
Filing date: 2017-04-27
Publication date: 2022-12-23
Anticipated expiration: 2037-04-27
Also published as: CN107413617A

Abstract

The invention relates to a screen vibrating bagasse pith remover, belonging to the technical field of agricultural machinery. The auger blade is welded on a large pulley shaft and is arranged in the cylindrical screen mesh, the coaxiality of the auger blade and the cylindrical screen mesh is kept, a gap is formed between the auger blade and the cylindrical screen mesh, the gap is regularly increased and decreased along with the vibration of the cylindrical screen mesh, and when the large pulley shaft drives the auger blade to rotate, bagasse is conveyed to the tail part of the depithing machine. The invention has reasonable structural design and low working energy consumption, only one motor provides power, can solve the bagasse depithing operation and solves the problem of screen hole blockage. The bagasse is crushed and loosened in the process of removing the pith, so that the bagasse is more suitable for subsequent processing. Has the characteristics of high working efficiency, continuous work, more thorough bagasse pith removal and contribution to subsequent processing of the bagasse subjected to pith removal.

Description

Screen vibrating bagasse depither

Technical Field

The invention relates to a screen vibrating bagasse pith remover, belonging to the technical field of agricultural machinery.

Background

Bagasse is used as a product after sugar extraction of sugarcane, and is often used for incineration to provide heat energy and preparation of various household papers and industrial papers. The bagasse contains a large amount of bagasse pith, which is not favorable for the strength of paper. And bagasse increases the consumption of chemical agents in the manufacturing process, so pulp removal is generally required before paper is made from the bagasse. At present, three problems mainly exist in the bagasse pith removing process, the first is that large bagasse blocks exist in bagasse after sugar pressing, the bagasse needs to be crushed and kneaded, so that the bagasse is fluffy and soft and is beneficial to subsequent processing, but the conventional pith removing machine only simply performs screening and cannot finish the cutting, kneading and dispersing of the bagasse; secondly, most of the conventional bagasse piths are of a reciprocating sieve type, and because bagasse is light, slender and soft, the bagasse is often inserted into sieve holes to block the sieve holes during reciprocating sieving, and the bagasse blocking the sieve holes cannot be cleaned by the reciprocating motion of the sieve; the third bagasse pith is light in weight, small in size and attached to the surface of bagasse, and when a large amount of bagasse pith is screened, a large amount of bagasse pith is located at the upper part of a bagasse layer in the movement process of the screen and cannot be located at the bottom of the material layer like heavy impurities in other materials, so that incomplete screening is caused, and a large amount of bagasse pith remains. Therefore, the bagasse blockage problem can be well solved by the method for cutting, kneading and dispersing the bagasse; and 4, screening the bagasse pulp remover thoroughly.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a screen vibrating bagasse depither, which is used for solving the problem that screen holes are blocked in the working process of the bagasse depither, and the bagasse cannot be crushed, kneaded and fluffy by single depither. The invention aims at large-scale and high-efficiency bagasse depithing operation. The invention has high working efficiency and good marrow removing effect.

The invention adopts the auger to convey the bagasse forwards continuously, and the auger blades 7 continuously untwist, rub and disperse the bagasse in the conveying process; the bagasse screen is made into a cylinder shape, so that the continuity and reliability of the bagasse conveyed by the auger are ensured; the cylindrical screen 10 is fixed on the supporting arm 18, the supporting arm 18 drives the cylindrical screen 10 to vibrate up and down, bagasse blocking screen holes is cleaned by means of inertia force, the screen holes are guaranteed to be unblocked, and the marrow removing machine can normally and rapidly run; the cylindrical screen 10 vibrates up and down to convey the fine bagasse piths to the bottom of the bagasse layer, and finally the bagasse piths are vibrated to the meshes of the screen, so that the thorough screening operation is realized. The invention aims at large-scale and high-efficiency bagasse depithing operation.

The technical scheme of the invention is as follows: a screen vibrating bagasse depithing machine comprises a motor 1, a motor belt pulley 2, a small belt pulley 3, a small belt pulley shaft 4, a large belt pulley shaft 5, a large belt pulley 6, a box body 9 and a bottom plate 17; the motor 1 is fixed on the bottom plate 17, the motor belt wheel 2 is arranged on the shaft of the motor 1, and the motor belt wheel 2 drives the large belt wheel 6 and the small belt wheel 3 through belt transmission; the large belt wheel 6 and the small belt wheel 3 respectively drive the large belt wheel shaft 5 and the small belt wheel shaft 4 to rotate; the device also comprises an auger blade 7, a feed inlet 8, a cylindrical screen 10, a discharge port 12, a cam 15 and a bottom plate 17; the auger blade 7 is welded on the large pulley shaft 5 and is arranged in the cylindrical screen mesh 10, the coaxiality of the auger blade 7 and the cylindrical screen mesh 10 is kept, a gap is formed between the auger blade 7 and the cylindrical screen mesh 10, the gap is regularly increased and decreased along with the vibration of the cylindrical screen mesh 10, when the large pulley shaft 5 drives the auger blade 7 to rotate, bagasse is conveyed to the tail part of the depithing machine, and the cam 15 is arranged on the small pulley shaft 4.

The cylindrical screen 10 is supported and fixed by the support arm 18, the support arm 18 is welded on the support shaft 16, the two ends of the support shaft 16 are in interference connection with the cam 15, the cam 15 rotates coaxially with the small belt pulley 3 through the cam shaft 14, when the small belt pulley shaft 4 drives the cam 15 to rotate, the support shaft 16 rotates along with the cam 15, the support arm 18 is driven to swing in a reciprocating mode, and the support arm 18 drives the cylindrical screen 10 to vibrate.

The feed inlet 8 is positioned above the large pulley shaft 5 and the auger blade 7, and after the bagasse is fed from the feed inlet 8, the bagasse is kneaded and cut by the rotating large pulley shaft 5 and the auger blade 7 and is conveyed to the tail part of the cylindrical screen 10.

The box body 9 is a cylinder and is divided into an upper part and a lower part, the middle part is fastened by bolts, a discharge hole 12 is arranged below the tail part, and bagasse after pith removal, which is conveyed to the discharge hole 12 by a large belt wheel shaft 5 and an auger blade 7, is discharged out of the box body.

The middle part of the cylindrical screen 10 is provided with a steel plate for fixing the screen, the steel plate is from the head part to the tail part, the screen is fixed on the steel plate by riveting, the steel plate is fixed with a supporting arm 18 by a bolt, and the supporting arm 18 supports and fixes the whole cylindrical screen 10.

The bottom plate 17 provides shape and stability to the machine and collects bagasse pulp that is removed through the bottom opening of the bin.

The beneficial effects of the invention are: the invention has reasonable structural design and low working energy consumption, only one motor provides power, can solve the bagasse depithing operation and solves the problem of screen hole blockage. The bagasse is crushed and loosened in the process of removing the pith, so that the bagasse is more suitable for subsequent processing. Has the characteristics of high working efficiency, continuous work, more thorough bagasse pith removal and contribution to subsequent processing of the bagasse subjected to pith removal.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

fig. 3 is a schematic view of the working mechanism of the present invention.

Reference numbers in fig. 1-3: 1-motor, 2-motor belt wheel, 3-small belt wheel, 4-small belt wheel, 5-large belt wheel, 6-large belt wheel, 7-auger blade, 8-feed inlet, 9-box body, 10-cylindrical screen, 11-large bearing, 12-discharge outlet, 13-small bearing, 14-cam shaft, 15-cam, 16-supporting shaft, 17-bottom plate and 18-supporting arm.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

Example 1: as shown in figures 1-3, a screen vibrating bagasse depithing machine comprises a motor 1, a motor pulley 2, a small pulley 3, a small pulley shaft 4, a large pulley shaft 5, a large pulley 6, a box body 9 and a bottom plate 17; the motor 1 is fixed on the bottom plate 17, the motor belt wheel 2 is arranged on the shaft of the motor 1, and the motor belt wheel 2 drives the large belt wheel 6 and the small belt wheel 3 through belt transmission; the large belt wheel 6 and the small belt wheel 3 respectively drive the large belt wheel shaft 5 and the small belt wheel shaft 4 to rotate; the device also comprises an auger blade 7, a feed inlet 8, a cylindrical screen 10, a discharge port 12, a cam 15 and a bottom plate 17; the auger blades 7 are welded on the large pulley shaft 5 and are arranged in the cylindrical screen mesh 10, the coaxiality of the auger blades 7 and the cylindrical screen mesh 10 is kept, the auger blades 7 and the cylindrical screen mesh 10 are kept at a certain distance, bagasse can pass through the auger blades, and the cylindrical screen mesh 10 is also ensured not to collide with and interfere with the auger blades 7 when vibrating. The clearance between the blade 7 of the movable screw conveyer and the cylindrical screen 10 is changed to be smaller and larger along with the vibration of the cylindrical screen 10, so that the bagasse can be extruded, crushed and cut periodically. When the large pulley shaft 5 drives the auger blade 7 to rotate, the bagasse is conveyed to the tail part of the depithing machine, and the cam 15 is arranged on the small pulley shaft 4.

As a preferable scheme of the present invention, the cylindrical screen 10 is supported and fixed by a support arm 18, the support arm 18 is welded on a support shaft 16, two ends of the support shaft 16 are in interference connection with a cam 15, the cam 15 and the small pulley 3 rotate coaxially through a cam shaft 14, when the small pulley shaft 4 drives the cam 15 to rotate, the support shaft 16 rotates along with the cam 15, and further drives the support arm 18 to reciprocate, and the support arm 18 drives the cylindrical screen 10 to vibrate. The welding part of the supporting arm 18 and the supporting shaft 16 adopts smooth transition, so that stress concentration is avoided.

As a preferred scheme of the invention, the feed inlet 8 is positioned above the large pulley shaft 5 and the auger blade 7, and after the bagasse is fed through the feed inlet 8, the bagasse is kneaded and cut by the rotating large pulley shaft 5 and the auger blade 7 and is conveyed to the tail part of the cylindrical screen 10.

As a preferred scheme of the invention, the box body 9 is a cylinder and is divided into an upper part and a lower part, the middle part is fastened by bolts, a discharge hole 12 is arranged below the tail part, and bagasse after pulp removal, which is conveyed to the discharge hole 12 by a large belt wheel shaft 5 and an auger blade 7, is discharged out of the box body.

In a preferred embodiment of the present invention, the cylindrical screen 10 has a steel plate for fixing the screen in the middle, the steel plate is from the head to the tail, the screen is fixed on the steel plate by riveting, the steel plate is fixed with the supporting arm 18 by a bolt, and the supporting arm 18 supports and fixes the whole cylindrical screen 10.

Example 2: as shown in FIGS. 1-3, this embodiment of a screen vibrating type bagasse pith remover is the same as that of embodiment 1, wherein the bottom of the cylinder is rectangular and has rectangular openings, and rectangular vertical guards are provided at both sides of the openings to prevent bagasse pith from drifting apart, and the bagasse pith falls out of the tank 9 through the rectangular openings. The lower end of the tail part of the box body 9 is provided with a discharge hole 12, and bagasse after pulp removal is discharged from the discharge hole.

The bearing used by the large pulley shaft 5 is a large bearing 11, and the bearing used by the small pulley shaft 4 is a small bearing 13. The bearing is an eccentric roller bearing, the centering property of the shaft can be ensured, the bearing is sealed by rubber, dust and pith in bagasse are prevented from invading into the bearing, and the working performance of the whole machine is improved.

The working process of the invention is as follows: during operation, the motor 1 is started firstly, the motor belt wheel 2 drives the large belt wheel 6 and the small belt wheel 3, and the large belt wheel 6 drives the auger blade 7 to rotate. The small belt wheel 3 drives the cam 15, the supporting shaft 16 and the supporting arm 18 to finally make the cylindrical screen 10 vibrate. Bagasse enters a box body 9 from a feed inlet 8 and falls around an auger blade 7 and inside a cylindrical screen 10, bagasse is kneaded, crushed, cut and conveyed backwards due to the rotation of the auger blade 7, bagasse piths fall through screen holes of the cylindrical screen 10, the piths in the bagasse are continuously screened out due to the continuous vibration of the cylindrical screen 10, and the auger blade 7 and the cylindrical screen 10 are matched for bagasse pith removal in the working process. The bagasse after the depithing is finally discharged from a discharge port 12. Bagasse pith falls onto bottom plate 17 and may be collected and processed manually.

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes and modifications can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A screen vibrating bagasse pith remover comprises a motor (1), a motor belt wheel (2), a small belt wheel (3), a small belt wheel shaft (4), a large belt wheel shaft (5), a large belt wheel (6), a box body (9) and a bottom plate (17); the motor (1) is fixed on the bottom plate (17), the motor belt wheel (2) is arranged on the shaft of the motor (1), and the motor belt wheel (2) drives the large belt wheel (6) and the small belt wheel (3) through belt transmission; the large belt wheel (6) and the small belt wheel (3) respectively drive the large belt wheel shaft (5) and the small belt wheel shaft (4) to rotate; the method is characterized in that: the device also comprises an auger blade (7), a feed inlet (8), a cylindrical screen (10), a discharge outlet (12) and a cam (15); the auger blade (7) is welded on the large pulley shaft (5) and is arranged in the cylindrical screen (10) and keeps coaxiality with the cylindrical screen (10), a gap is formed between the auger blade (7) and the cylindrical screen (10), the gap is regularly enlarged and reduced along with the vibration of the cylindrical screen (10), when the large pulley shaft (5) drives the auger blade (7) to rotate, bagasse is conveyed to the tail part of the depithing machine, and the cam (15) is arranged on the small pulley shaft (4);

the cylindrical screen (10) is supported and fixed by a supporting arm (18), the supporting arm (18) is welded on the supporting shaft (16), two ends of the supporting shaft (16) are in interference connection with a cam (15), the cam (15) and a small belt pulley (3) coaxially rotate through a cam shaft (14), when the small belt pulley shaft (4) drives the cam (15) to rotate, the supporting shaft (16) rotates along with the cam (15), the supporting arm (18) is further driven to reciprocate, and the supporting arm (18) drives the cylindrical screen (10) to vibrate;

the feed inlet (8) is positioned above the large pulley shaft (5) and the auger blade (7), and after bagasse is fed in from the feed inlet (8), the bagasse is kneaded and cut by the rotating large pulley shaft (5) and the auger blade (7) and is conveyed to the tail part of the cylindrical screen (10).

2. A screen vibrating bagasse depither as claimed in claim 1, characterised by: the box body (9) is a cylinder and is divided into an upper part and a lower part, the middle part is fastened by bolts, a discharge hole (12) is arranged below the tail part, and bagasse after pith removal, which is conveyed to the discharge hole (12) by a large belt wheel shaft (5) and screw conveyor blades (7), is discharged out of the box body.

3. A screen vibrating bagasse depithing machine as defined in claim 1, characterized in that: the middle part of the cylindrical screen (10) is provided with a steel plate for fixing the screen, the steel plate is arranged from the head part to the tail part, the screen is fixed on the steel plate through riveting, the steel plate is fixed with a supporting arm (18) through a bolt, and the supporting arm (18) supports and fixes the whole cylindrical screen (10).