CN221822635U - A raw pulp filtering device for paper production - Google Patents

Abstract

The utility model discloses a raw pulp filtering device for papermaking production, which comprises a first box body and supporting legs, wherein a pair of cross bars are fixedly connected in the middle of the interior of the first box body, a pair of first vertical plates are arranged on the outer walls of the cross bars, a second box body is fixedly connected above the first vertical plates, a filtering mechanism is arranged on the right side of the second box body, the utility model relates to the technical field of papermaking production, raw pulp for papermaking production which needs to be filtered can be discharged into the second box body through a feeding pipe, the output shaft of the first motor drives the second bevel gear to rotate through the first bevel gear, so that the second bevel gear can drive the cam to rotate, the cam can squeeze the jacking block, the jacking block is matched with the stop lever, the spring and the like, the second box body can shake, impurities, filter residues and the like in primary pulp are primarily filtered through the second screen plate on the second box body, and the primary pulp is secondarily filtered through the first screen plate, so that the filtering effect is better.

Description

A raw pulp filtering device for paper production

Technical Field

The utility model relates to the technical field of paper production, in particular to a raw pulp filtering device for paper production.

Background Art

Papermaking can be done in two forms: mechanical and manual. Mechanical papermaking is done continuously on a papermaking machine. The pulp suitable for paper quality is diluted with water to a certain concentration, and initially dehydrated on the wire section of the papermaking machine to form wet paper sheets, which are then squeezed and dehydrated, and then dried into paper. During the papermaking process, impurities and large floccules in the original pulp need to be filtered, so a filtering device is needed.

For example, a papermaking filter device with publication number CN206152476U includes a feed pipe and a filter barrel. The device is provided with a spray pipe above the cylindrical filter, which can not only clean the cylindrical filter to reduce blockage, but also wet the feed pipe opening to prevent the slurry from hardening and accumulating due to drying;

However, the papermaking filtering device is provided with a slag discharge port on the cover plate at a low position. When the cover plate and the cylindrical filter screen rotate, a part of the raw pulp is affected by the centrifugal force and is easily thrown out from the slag discharge port, thereby reducing the filtering effect. At the same time, since the semicircular screen on the left is flush with the edge of the curved screen, and there is no structure for cleaning the surface of the curved screen, when the filter residue on the curved screen blocks the mesh, the fallen raw pulp is easy to flow down from the semicircular screen on the left, thereby causing a waste of raw materials.

Utility Model Content

In view of the deficiencies in the prior art, the utility model provides a raw pulp filtering device for papermaking production, which solves the problems of the existing papermaking filtering device. A slag discharge port is arranged on a cover plate at a low position, so that when the cover plate and the cylindrical filter screen rotate, a portion of the raw pulp is affected by the centrifugal force and is easily thrown out from the slag discharge port. At the same time, there is no structure for cleaning the surface of the arc screen. In this way, when the filter residue on the arc screen blocks the mesh holes, the fallen raw pulp is easy to flow down from the semicircular screen on the left, causing the problem of raw material waste.

To achieve the above purpose, the utility model is implemented through the following technical solutions: a raw pulp filtering device for paper production, including a first box body and legs, a pair of legs are fixedly connected to the bottom of the first box body, a pair of cross bars are fixedly connected to the middle of the inside of the first box body, a pair of first vertical plates are installed on the outer walls of the cross bars, and the inner walls of the through holes of the first vertical plates are gap-matched with the outer walls of the cross bars, a second box body is fixedly connected above the first vertical plates, and a first discharge pipe is fixedly connected to the lower right side of the second box body, which is gap-matched with the inner wall of the through hole on the right side of the first box body, a first mesh plate is fixedly connected to the lower inside of the first box body, a filtering mechanism is installed on the right side of the second box body, a cleaning mechanism is installed above the first mesh plate, and a second mesh plate is fixedly connected to the lower inside of the second box body.

Preferably, the filtering mechanism includes a first motor fixedly connected to the upper inner wall on the right side of the first housing, and the output shaft of the first motor is fixedly connected to the first bevel gear, a second vertical plate fixed to the first housing is provided below the first bevel gear, the front end surface of the second vertical plate is rotatably connected to the second bevel gear meshing with the first bevel gear through a rotating shaft, a cam is fixedly connected to the front end rotating shaft of the second bevel gear, the left outer wall of the cam is fitted with a top block fixed to the second housing, a pair of baffle rods which are gap-matched with the inner wall of the left through hole of the first housing are fixedly connected to the left and right sides of the second housing, and the outer walls of the baffle rods are sleeved with springs which are respectively connected to the first housing and the second housing.

Preferably, a feed pipe is fixedly connected to the middle of the upper part of the first box body.

Preferably, a pair of third vertical plates are fixedly connected to the upper inner wall of the first box body, and a spray pipe penetrating the first box body is fixedly connected inside the third vertical plates, and a plurality of spray heads are fixedly connected below the spray pipe.

Preferably, the cleaning mechanism includes a pair of vertical rods rotatably connected to the first box body and the first mesh plate respectively through a pair of bearings, and a cleaning brush that fits the upper surface of the first mesh plate is fixedly connected to the top of the vertical rods, a machine base fixedly connected to the first box body is provided below the vertical rods, and a motor connected to the vertical rods is fixedly connected to the inside of the machine base, and the outer walls of the left and right openings of the first box body are threadedly connected with cover plates through a plurality of bolts.

Preferably, a second discharge pipe is fixedly connected to the lower right side of the first box body.

Beneficial Effects

The utility model provides a raw pulp filtering device for paper production, which has the following beneficial effects:

The raw pulp for papermaking production that needs to be filtered can be discharged into the second box body through the feed pipe, and the first motor is started at this time, so that the output shaft of the first motor drives the second bevel gear to rotate through the first bevel gear, so that the second bevel gear can drive the cam to rotate, so that the cam can squeeze the top block, so that the top block cooperates with the stop rod and the spring to make the second box body shake, and then the impurities and filter residues in the raw pulp are preliminarily filtered through the second mesh plate on the second box body, and then the raw pulp that has completed the preliminary filtration will fall onto the first mesh plate, so that the raw pulp can be secondary filtered through the first mesh plate, and finally the solenoid valve on the first discharge pipe can be controlled to open, and the cover plate can be removed, so that the intercepted impurities and filter residues can be cleaned, so as to achieve better filtering effect;

When it is necessary to clean the impurities and filter residue on the first mesh plate, the second motor can be started so that the output shaft of the second motor drives the cleaning brush to rotate through the vertical rod. In this way, the impurities and filter residue trapped on the first mesh plate can be cleaned by the cleaning brush and piled together. At the same time, it can also avoid blocking the holes of the first mesh plate, so that the raw slurry can flow down smoothly, complete the filtration, and avoid waste of raw materials.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of the utility model.

FIG. 2 is a plan sectional view of the utility model.

FIG3 is a partial enlarged schematic diagram of the utility model.

FIG. 4 is a partial enlarged schematic diagram of the utility model.

FIG5 is a partial enlarged schematic diagram of the utility model.

In the figure: 1. first box body; 2. supporting legs; 3. cross bar; 4. first vertical plate; 5. second box body; 6. first discharge pipe; 7. first mesh plate; 8. first motor; 9. first umbrella gear; 10. second vertical plate; 11. second umbrella gear; 12. cam; 13. top block; 14. stop rod; 15. spring; 16. third vertical plate; 17. spray pipe; 18. nozzle; 19. feed pipe; 20. second mesh plate; 21. vertical bar; 22. cleaning brush; 23. base; 24. motor; 25. cover plate; 26. second discharge pipe.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-5. The utility model provides a technical solution: a pulp filtering device for paper production, comprising a first box body 1 and legs 2, a pair of legs 2 are fixedly connected to the lower part of the first box body 1, a pair of cross bars 3 are fixedly connected to the middle of the first box body 1, a pair of first vertical plates 4 are installed on the outer wall of the cross bars 3, and the inner wall of the through hole of the first vertical plate 4 is gap-matched with the outer wall of the cross bars 3, a second box body 5 is fixedly connected above the first vertical plate 4, and a first discharge pipe 6 is fixedly connected to the lower right side of the second box body 5 and is gap-matched with the inner wall of the through hole on the right side of the first box body 1, a first mesh plate 7 is fixedly connected to the lower part of the first box body 1, a filtering mechanism is installed on the right side of the second box body 5, a cleaning mechanism is installed above the first mesh plate 7, and a second mesh plate 20 is fixedly connected to the lower part of the second box body 5;

Two first vertical plates 4 with through holes can be set at both ends below the second box body 5, and cross bars 3 can be set at the through holes of the first vertical plates 4, so that the second box body 5 can be supported by the cross bars 3 and the first vertical plates 4, through holes are processed on the left and right sides of the first box body 1, and a first discharge pipe 6 connected to the second box body 5 is set at the through hole on the right side thereof, and an electromagnetic valve is installed on the first discharge pipe 6, so that when it is necessary to clean the impurities and filter residue in the second box body 5, the electromagnetic valve of the first discharge pipe 6 can be opened. At the same time, an opening is processed above the first box body 1 to facilitate the observation of the amount of filter residue in the second box body 5. Since the mesh number of the first mesh plate 7 is larger than the mesh number of the second mesh plate 20, the original slurry can be filtered for the second time.

The present embodiment is further configured as follows: the filtering mechanism comprises a first motor 8 fixedly connected to the upper inner wall of the right side of the first housing 1, and the output shaft of the first motor 8 is fixedly connected to a first bevel gear 9, a second vertical plate 10 fixedly connected to the first housing 1 is provided below the first bevel gear 9, a front end surface of the second vertical plate 10 is rotatably connected to a second bevel gear 11 meshing with the first bevel gear 9 through a rotating shaft, a cam 12 is fixedly connected to the front end rotating shaft of the second bevel gear 11, a top block 13 fixedly connected to the second housing 5 is attached to the left outer wall of the cam 12, a pair of baffle rods 14 which are gap-matched with the inner wall of the left through hole of the first housing 1 are fixedly connected to the left and right sides of the second housing 5, and the outer wall of the baffle rod 14 is sleeved with springs 15 respectively connected to the first housing 1 and the second housing 5;

A stopper 14 and a spring 15 may be provided on the left side of the second housing 5, so that the second housing 5 can be shaken by the stopper and the spring 15 in cooperation with the cam 12, etc., to facilitate filtering of the raw pulp.

This embodiment is further configured such that a feed pipe 19 is fixedly connected to the middle of the upper portion of the first box body 1 .

This embodiment is further configured such that a pair of third vertical plates 16 are fixedly connected to the upper inner wall of the first box body 1, and a spray pipe 17 penetrating the first box body 1 is fixedly connected inside the third vertical plate 16, and a plurality of spray heads 18 are fixedly connected below the spray pipe 17;

The upper left side of the spray pipe 17 can be connected to an external water supply structure, so that the second mesh plate 20 and the first mesh plate 7 can be cleaned through the spray pipe 17 and the nozzle.

The present embodiment is further configured such that the cleaning mechanism comprises a pair of vertical rods 21 rotatably connected to the first housing 1 and the first mesh plate 7 respectively through a pair of bearings, and a cleaning brush 22 affixed to the upper surface of the first mesh plate 7 is fixedly connected to the upper portion of the vertical rods 21, a machine base 23 fixedly connected to the first housing 1 is provided below the vertical rods 21, and a motor 24 connected to the vertical rods 21 is fixedly connected inside the machine base 23, and a cover plate 25 is threadedly connected to the outer walls of the openings on both sides of the first housing 1 through a plurality of bolts;

Openings can be processed at the lower left and right sides of the first box body 1 and covered by a cover plate 25 with a sealing gasket, so that when the cover plate 25 is removed, impurities and filter residues on the first mesh plate 7 can be cleaned.

This embodiment is further configured such that a second discharge pipe 26 is fixedly connected to the lower right side of the first box body 1 .

It is worth noting that the models of the electrical structures involved in this application can be selected according to user needs, and only need to meet the usage requirements of this application. At the same time, the corresponding control circuits are all existing technologies and can be fully implemented by personnel in this field, so no further details will be given.

By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

Embodiment: When it is necessary to use this device, the external power supply and control circuit of each electrical structure can be connected, and then the raw pulp for papermaking production that needs to be filtered is discharged into the second box body 5 through the feed pipe 19. At this time, the first motor 8 is started, so that the output shaft of the first motor 8 drives the second bevel gear 11 to rotate through the first bevel gear 9, so that the second bevel gear 11 can drive the cam 12 to rotate, so that the cam 12 can squeeze the top block 13, so that the top block 13 cooperates with the blocking rod 14 and the spring 15 to make the second box body 5 shake, and then the second mesh plate 20 on the second box body 5 is used to perform preliminary filtration on the impurities and filter residues in the raw pulp, and then the raw pulp that has completed the preliminary filtration will fall onto the first mesh plate 7, so that the raw pulp can be filtered for the second time through the first mesh plate 7, and finally the solenoid valve on the first discharge pipe 6 can be controlled to open, and the cover plate 25 can be removed, so that the intercepted impurities and filter residues can be cleaned, so as to achieve better filtering effect;

When it is necessary to clean the impurities and filter residue on the first mesh plate 7, the second motor 24 can be started so that the output shaft of the second motor 24 drives the cleaning brush 22 to rotate through the vertical rod 21, so that the impurities and filter residue trapped on the first mesh plate 7 can be cleaned by the cleaning brush 22 and piled together. At the same time, it can also avoid blocking the holes of the first mesh plate 7, so that the raw slurry can flow down smoothly, complete the filtration, and avoid waste of raw materials.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A pulp filtering device for papermaking production, comprising a first box body (1) and supporting legs (2), wherein a pair of supporting legs (2) are fixedly connected below the first box body (1), and characterized in that: a pair of cross bars (3) are fixedly connected to the middle of the interior of the first box body (1), a pair of first vertical plates (4) are installed on the outer wall of the cross bars (3), and the inner wall of the through hole of the first vertical plate (4) is gap-matched with the outer wall of the cross bars (3), a second box body (5) is fixedly connected above the first vertical plate (4), and a first discharge pipe (6) is fixedly connected to the lower right side of the second box body (5) and is gap-matched with the inner wall of the through hole on the right side of the first box body (1), a first mesh plate (7) is fixedly connected to the lower interior of the first box body (1), a filtering mechanism is installed on the right side of the second box body (5), a cleaning mechanism is installed above the first mesh plate (7), and a second mesh plate (20) is fixedly connected to the lower interior of the second box body (5). 2. A pulp filtering device for papermaking production according to claim 1, characterized in that the filtering mechanism comprises a first motor (8) fixedly connected to the upper inner wall of the right side of the first housing (1), and the output shaft of the first motor (8) is fixedly connected to a first bevel gear (9), a second vertical plate (10) fixedly connected to the first housing (1) is provided below the first bevel gear (9), a front end surface of the second vertical plate (10) is rotatably connected to a second bevel gear (11) meshing with the first bevel gear (9) through a rotating shaft, a cam (12) is fixedly connected to the front end rotating shaft of the second bevel gear (11), a top block (13) fixedly connected to the second housing (5) is attached to the left outer wall of the cam (12), a pair of baffles (14) which are gap-matched with the inner wall of the left through hole of the first housing (1) are fixedly connected to the left and right sides of the second housing (5), and the outer wall of the baffles (14) is sleeved with springs (15) respectively connected to the first housing (1) and the second housing (5). 3. A raw pulp filtering device for paper production according to claim 1, characterized in that a feed pipe (19) is fixedly connected to the middle of the upper part of the first box body (1). 4. A raw pulp filtering device for papermaking production according to claim 1, characterized in that a pair of third vertical plates (16) are fixedly connected to the upper inner wall of the first box body (1), and a spray pipe (17) that passes through the first box body (1) is fixedly connected inside the third vertical plate (16), and a plurality of nozzles (18) are fixedly connected below the spray pipe (17). 5. A pulp filtering device for papermaking production according to claim 1, characterized in that the cleaning mechanism includes a pair of vertical rods (21) rotatably connected to the first box body (1) and the first mesh plate (7) respectively through a pair of bearings, and a cleaning brush (22) is fixedly connected to the upper surface of the first mesh plate (7) above the vertical rods (21), a machine base (23) fixedly connected to the first box body (1) is provided below the vertical rods (21), and a motor (24) connected to the vertical rods (21) is fixedly connected inside the machine base (23), and the outer walls of the left and right openings of the first box body (1) are threadedly connected with cover plates (25) through a plurality of bolts. 6. A raw pulp filtering device for paper production according to claim 1, characterized in that a second discharge pipe (26) is fixedly connected to the lower right side of the first box body (1).