Integrated efficient energy-saving double-layer paper pulp purification vibration frame screen

Abstract

The invention relates to the technical field of vibration frame screens, in particular to an integrated efficient energy-saving double-layer paper pulp purification vibration frame screen which comprises a base, two screen bodies are arranged above the base and connected through a connecting plate, and partition plates are fixedly installed in the middles of the two screen bodies. A sliding rail is fixedly installed on the base through two supporting rods, a sliding block is installed on the sliding rail in a sliding mode, a feeding spray head is fixedly installed on the sliding block, and a transmission assembly used for driving the sliding block to move left and right in a reciprocating mode is arranged on the base. The feeding spray head moves above the screen body through mutual cooperation of the sliding rail, the sliding block and the transmission assembly, when the feeding spray head adds paper pulp into one area, a worker can clean pulp residues and impurities in the other area, the paper pulp is alternately purified through the two areas, and meanwhile, the feeding spray head can clean the pulp residues and the impurities in the other area without stopping machine operation. The paper pulp is continuously purified, and the paper pulp purification efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of vibrating frame screens, and in particular to an integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen. Background Art

[0002] As an important basic raw material industry, the papermaking industry occupies an important position in the global economy. With the development of society and the improvement of people's living standards, the requirements for paper quality and output are constantly increasing. In the production process of pulp, various impurities such as fiber bundles, sand and gravel, plastic particles, adhesives, etc. are inevitably mixed in. The presence of these impurities will not only affect the physical properties and appearance quality of the paper, but may also damage papermaking equipment and increase production costs. Therefore, pulp purification is a crucial link in the papermaking process.

[0003] In the prior art, the concentration of the raw pulp sprayed from the steam ball is 8%. Before entering the vibrating frame screen, each ton of 8% raw pulp needs to be diluted with 4.333 tons of water to reduce the concentration to 1.5%. Then it enters the first vibrating frame screen and flows to the second vibrating frame screen through a pipeline. The first vibrating frame screen will automatically jump out pulp residue and impurities larger than 8 mm from the outlet of the vibrating frame screen, and the good pulp with a concentration of 1.5% passes through the φ8 circular hole of the sieve plate of the vibrating frame screen and flows to the lower second vibrating frame screen through a pipeline. The second vibrating frame screen is basically the same as the first one, except that the circular hole on the sieve plate is φ6, so the second vibrating frame screen will automatically jump out pulp residue and impurities larger than 6 mm from the outlet of the vibrating frame screen, and the good pulp with a concentration of 1.5% passes through the φ6 circular hole of the sieve plate of the vibrating frame screen and enters the slag remover.

[0004] However, when the above structure is in use, pulp residue and impurities will remain in the vibrating frame screen. The increase of pulp residue and impurities will affect the filtering effect of the vibrating frame screen. When purifying some pulp, it is necessary to stop the machine and clean the pulp residue and impurities in the vibrating frame screen. The pulp cannot be purified continuously, resulting in low pulp purification efficiency. Summary of the invention

[0005] The purpose of the present invention is to solve the following shortcomings in the prior art: when in use, pulp residue and impurities will remain in the vibrating frame screen. The increase of pulp residue and impurities will affect the filtering effect of the vibrating frame screen. When purifying some pulp, it is necessary to stop the machine and clean the pulp residue and impurities in the vibrating frame screen. The pulp cannot be purified continuously, resulting in low pulp purification efficiency. An integrated, high-efficiency and energy-saving double-layer pulp purification vibrating frame screen is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An integrated high-efficiency and energy-saving double-layer pulp purification vibration frame screen comprises a base, two screen bodies are arranged above the base, the two screen bodies are connected by a connecting plate, the base is connected to the two screen bodies by a vibration component, a collecting frame is placed on the base, and the collecting frame is located directly below the two screen bodies;

[0008] A partition is fixedly installed in the middle part of the two screen bodies, a slide rail is fixedly installed on the base through two support rods, a slider is slidably installed on the slide rail, a feeding nozzle is fixedly installed on the slider, the axis of the partition coincides with the slide rail, and a transmission component for driving the slider to move back and forth left and right is provided on the base.

[0009] As a preferred solution, the vibration assembly includes multiple vibration springs vertically fixed on the base and two vibration motors symmetrically fixed on the base, the upper ends of the multiple vibration springs are fixedly connected to the lower surface of the lower screen body, and the output ends of the two vibration motors are fixedly connected to the side of the lower screen body.

[0010] As a preferred solution, the transmission assembly includes a reciprocating screw rod horizontally rotatably mounted on the base through two vertical rods, a driving motor fixedly mounted on the vertical rods, a moving block threadedly sleeved on the reciprocating screw rod, a first spring rod fixedly mounted on the moving block, and an isosceles triangle plate fixedly mounted on the slider through an L-shaped connecting block, the output shaft of the driving motor is fixedly connected to one end of the reciprocating screw rod, a limiting assembly for limiting the rotation of the moving block is provided between the two vertical rods, and the isosceles triangle plate is located on the action path of the first spring rod.

[0011] As a preferred solution, the limiting assembly includes a limiting rod fixedly installed horizontally between two vertical rods, a limiting hole is opened on the moving block, and the limiting rod is slidably inserted in the limiting hole.

[0012] As a preferred solution, rectangular openings are provided at both ends of the sieve body, and sealing components are provided in the two rectangular openings. Two scrapers are slidably arranged in the sieve body, and the two scrapers are located on both sides of the partition. The two scrapers are horizontally slidably installed in the sieve body through sliding components.

[0013] As a preferred solution, a strip hole connected to the rectangular opening is opened at the upper end of the sieve body, and the sealing assembly includes a baffle plate slidably inserted in the strip hole, two second spring rods symmetrically fixedly installed on the upper end of the baffle plate, and two support rods respectively fixedly installed on one end of the two second spring rods, the two support rods are fixedly installed on the sieve body, and the lower end of the baffle plate is sealed and inserted in the rectangular opening.

[0014] As a preferred solution, movable holes are symmetrically opened at one end of the screen body, and the sliding assembly includes two movable rods slidably installed in the two movable holes, a connecting rod fixedly installed at one end of the two movable rods, and two telescopic springs respectively sleeved on the two movable rods. The ends of the two movable rods away from the connecting rod are inserted into the screen body and fixedly connected to the scraper.

[0015] As a preferred solution, L-shaped rods are symmetrically fixedly installed on the upper end of the baffle, a right-angled triangle block is fixedly installed between the two L-shaped rods, and an L-shaped top rod is fixedly installed on the upper end of the scraper, and the top rod and the right-angled triangle block are in the same vertical plane.

[0016] As a preferred solution, guide plates are fixedly installed at both ends of the two sieve bodies at an angle, and the guide plates are located directly below the rectangular opening. Waste slag frames are symmetrically placed on the base, and the two waste slag frames are located directly below the multiple guide plates.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The partition divides the screen body into two areas. The feeding nozzle moves above the two areas of the screen body through the cooperation of the slide rail, the slider and the transmission assembly. When the feeding nozzle adds pulp to one area, the staff can clean the pulp residue and impurities in the other area. By purifying the pulp alternately in the two areas, the pulp can be purified continuously without stopping the machine, effectively improving the pulp purification efficiency.

[0019] 2. When it is necessary to clean the pulp residue and impurities in one area of ​​the screen body, the pulp residue and impurities in the screen body can be conveniently cleaned to the rectangular opening through the cooperation of the connecting rod, the moving rod, the telescopic spring and the scraper, and discharged through the rectangular opening. The operation is simple and convenient, and the pulp residue and impurities in the screen body can be quickly cleaned.

[0020] 3. When the scraper is close to the baffle, the cooperation between the top rod and the right-angle triangle block can automatically drive the baffle to move vertically upward, thereby automatically opening the rectangular opening to facilitate the discharge of pulp residue and impurities. The operation is simple and convenient, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front perspective structural diagram of an integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen proposed by the present invention;

[0022] Figure 2 This is a rear-view stereoscopic structural schematic diagram of an integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen proposed by the present invention;

[0023] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the base, the vibration assembly and the screen body;

[0025] Figure 5 It is a three-dimensional structural diagram of the slide rail, the slider and the feeding nozzle;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the screen body, scraper, sliding assembly and plugging assembly;

[0027] Figure 7 for Figure 6 The enlarged structural diagram at B in the middle;

[0028] Figure 8 for Figure 6 Enlarged structural diagram at point C in the middle.

[0029] In the figure: 1 base, 2 screen body, 3 connecting plate, 4 collecting frame, 5 partition, 6 support rod, 7 slide rail, 8 slider, 9 feeding nozzle, 10 vibration spring, 11 vibration motor, 12 reciprocating screw rod, 13 driving motor, 14 moving block, 15 first spring rod, 16 connecting block, 17 isosceles triangle plate, 18 limiting rod, 19 scraper, 20 baffle, 21 second spring rod, 22 support rod, 23 moving rod, 24 connecting rod, 25 telescopic spring, 26 L-shaped rod, 27 right-angle triangle block, 28 push rod, 29 guide plate, 30 waste residue frame. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Reference Figure 1-Figure 8 An integrated high-efficiency and energy-saving double-layer pulp purification vibration frame screen includes a base 1, two screen bodies 2 are arranged above the base 1, the two screen bodies 2 are connected by a connecting plate 3, the base 1 is connected to the two screen bodies 2 through a vibration component, a collecting frame 4 is placed on the base 1, and the collecting frame 4 is located directly below the two screen bodies 2. The vibration component includes a plurality of vibration springs 10 vertically fixedly mounted on the base 1 and two vibration motors 11 symmetrically fixedly mounted on the base 1, the upper ends of the plurality of vibration springs 10 are fixedly connected to the lower surface of the lower screen body 2, and the output ends of the two vibration motors 11 are fixedly connected to the side of the lower screen body 2.

[0032] The two screen bodies 2 are connected into two layers through a connecting plate 3 and are arranged directly above the base 1. The two screen bodies 2 are supported on the base 1 through a plurality of vibration springs 10. When the vibration motor 11 is started, the vibration motor 11 can drive the two screen bodies 2 to vibrate back and forth on the base 1 through the output end, so that when pulp is added to the screen body 2, the vibration of the vibration motor 11 can speed up the filtration of the pulp.

[0033] A partition 5 is fixedly installed in the middle part of the two screen bodies 2, a slide rail 7 is fixedly installed on the base 1 through two support rods 6, a slider 8 is slidably installed on the slide rail 7, a feeding nozzle 9 is fixedly installed on the slider 8, the axis of the partition 5 coincides with the axis of the slide rail 7, and a transmission component for driving the slider 8 to move back and forth left and right is provided on the base 1.

[0034] The partition 5 divides the screen body 2 into two left and right areas. The feeding nozzle 9 is slidably installed on the slide rail 7 through the slider 8, and slides above the two areas at the same time. When the feeding nozzle 9 adds pulp to the right area, the vibrating screen body 2 can purify and filter the pulp in the left area. At the same time, after the pulp in the left area is purified and filtered, the staff can directly clean the residual pulp residue and impurities in the left area. When the cleaning is completed, the feeding nozzle 9 is moved to the top of the left area through the transmission assembly, and pulp is added to the left area of ​​the screen body 2. At this time, the pulp in the right area will be purified and filtered. By purifying the pulp alternately in the two areas, the pulp can be continuously purified without stopping the machine operation, effectively improving the pulp purification efficiency.

[0035] The transmission assembly includes a reciprocating screw rod 12 horizontally rotatably mounted on the base 1 through two vertical rods, a driving motor 13 fixedly mounted on the vertical rods, a moving block 14 threadedly sleeved on the reciprocating screw rod 12, a first spring rod 15 fixedly mounted on the moving block 14, and an isosceles triangle plate 17 fixedly mounted on the slider 8 through an L-shaped connecting block 16. The output shaft of the driving motor 13 is fixedly connected to one end of the reciprocating screw rod 12, and a limiting assembly for limiting the rotation of the moving block 14 is provided between the two vertical rods. The isosceles triangle plate 17 is located on the movement path of the first spring rod 15.

[0036] The reciprocating screw 12 is horizontally arranged above the base 1. When the driving motor 13 is started, the reciprocating screw 12 can be driven to rotate, thereby driving the moving block 14 to reciprocate on the reciprocating screw 12. When the feeding nozzle 9 needs to move to the left, the reciprocating screw 12 will drive the moving block 14 to move to the left side of the screen body 2. During the movement of the moving block 14, the upper end of the first spring rod 15 will be driven to contact the side of the isosceles triangle plate 17, and the slider 8 will be driven to move to the left on the slide rail 7 through the isosceles triangle plate 17 and the connecting block 16 until the slider 8 moves to the left on the slide rail 7. When the slider 8 slides to the leftmost end of the slide rail 7, the slider 8 stops moving. At this time, if the moving block 14 continues to move, the first spring rod 15 is compressed until the moving block 14 moves to the left side of the isosceles triangle plate 17, and the first spring rod 15 is separated from the isosceles triangle plate 17. During the time from the separation of the first spring rod 15 and the isosceles triangle plate 17 to the time of contacting again, the feeding nozzle 9 feeds pulp to one of the areas, and at the same time, the screen body 2 purifies and filters the pulp in another area, and the staff cleans the pulp residue and impurities in the area.

[0037] The limiting assembly includes a limiting rod 18 fixedly installed horizontally between two vertical rods. A limiting hole is opened on the moving block 14. The limiting rod 18 is slidably inserted in the limiting hole. The moving block 14 is sleeved on the reciprocating screw rod 12 and the limiting rod 18. The limiting rod 18 limits the moving block 14 from rotating with the reciprocating screw rod 12 during the movement.

[0038] Rectangular openings are provided at both ends of the sieve body 2, and sealing components are provided in the two rectangular openings. Two scrapers 19 are slidably provided in the sieve body 2, and the two scrapers 19 are located on both sides of the partition 5. The two scrapers 19 are horizontally slidably installed in the sieve body 2 through sliding components.

[0039] A strip hole connected to the rectangular opening is opened at the upper end of the sieve body 2. The sealing assembly includes a baffle 20 slidably inserted in the strip hole, two second spring rods 21 symmetrically fixedly installed on the upper end of the baffle 20, and two support rods 22 respectively fixedly installed on one end of the two second spring rods 21. The two support rods 22 are fixedly installed on the sieve body 2, and the lower end of the baffle 20 is sealed and inserted in the rectangular opening.

[0040] Rectangular openings are opened at the left and right ends of the screen body 2, and the baffle 20 is installed on the screen body 2 through two second spring rods 21, and the baffle 20 is inserted into the rectangular opening. Under the action of the elastic force of the second spring rods 21, the baffle 20 will block the rectangular opening, thereby preventing the pulp from flowing out of the rectangular opening during purification and filtration.

[0041] One end of the screen body 2 is symmetrically provided with moving holes, and the sliding assembly includes two moving rods 23 slidably installed in the two moving holes, a connecting rod 24 fixedly installed at one end of the two moving rods 23, and two telescopic springs 25 respectively sleeved on the two moving rods 23. The ends of the two moving rods 23 away from the connecting rod 24 are inserted into the screen body 2 and are fixedly connected to the scraper 19.

[0042] The scraper 19 is installed in the screen body 2 for horizontal sliding. Under the action of the elastic force of the telescopic spring 25, the moving rod 23 tends to move toward the partition 5, so that the scraper 19 contacts the partition 5. When the pulp purification and filtration in the screen body 2 is completed and the pulp residue and impurities inside the area need to be cleaned, the baffle 20 can be driven to move vertically upward to open the rectangular opening, and then the connecting rod 24 is pulled to drive the two moving rods 23 to move away from the partition 5. The telescopic spring 25 is stretched, and at the same time, the scraper 19 is driven to move away from the partition 5 through the two moving rods 23. The lower surface of the scraper 19 is in sliding contact with the inner wall of the screen body 2. During the movement, the scraper 19 will clean the pulp residue and impurities in the screen body 2 to the rectangular opening and discharge them through the rectangular opening. The operation is simple and convenient, and the pulp residue and impurities in the screen body 2 can be quickly cleaned.

[0043] An L-shaped rod 26 is symmetrically fixedly installed on the upper end of the baffle 20, a right-angled triangle block 27 is fixedly installed between the two L-shaped rods 26, and an L-shaped top rod 28 is fixedly installed on the upper end of the scraper 19. The top rod 28 and the right-angled triangle block 27 are in the same vertical plane.

[0044] When the scraper 19 is driven to move toward the baffle 20 by the moving rod 23, the top rod 28 installed on the scraper 19 will move toward the right-angled triangle block 27 until one end of the top rod 28 contacts the inclined surface of the right-angled triangle block 27. The top rod 28 will drive the right-angled triangle block 27 to move vertically upward, and at the same time drive the baffle 20 to move vertically upward through the L-shaped rod 26, thereby automatically opening the rectangular opening to facilitate the discharge of pulp residue and impurities. The operation is simple and convenient, saving time and effort.

[0045] Guide plates 29 are fixedly installed at both ends of the two screen bodies 2 at an angle, and the guide plates 29 are located directly below the rectangular opening. Waste slag frames 30 are symmetrically placed on the base 1, and the two waste slag frames 30 are located directly below the multiple guide plates 29. The pulp slag and impurities discharged from the rectangular opening will slide onto the guide plates 29, and then slide into the waste slag frames 30 through the guide plates 29, so that the discharged pulp slag and impurities are collected for centralized processing at a later stage.

[0046] In the present invention, the partition 5 divides the screen body 2 into two left and right areas, and the feeding nozzle 9 is slidably installed on the slide rail 7 through the slider 8, and slides above the two areas at the same time. When the feeding nozzle 9 adds pulp to the right area, the vibrating screen body 2 can purify and filter the pulp in the left area. At the same time, after the pulp in the left area is purified and filtered, the staff can directly clean the pulp residue and impurities remaining in the left area. When the cleaning is completed, the feeding nozzle 9 is moved to the top of the left area through the transmission assembly, and pulp is added to the left area of ​​the screen body 2. At this time, the pulp in the right area will be purified and filtered. By purifying the pulp alternately in the two areas, the pulp can be continuously purified without stopping the machine operation, thereby effectively improving the pulp purification efficiency.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen, comprising a base (1), characterized in that: Two sieve bodies (2) are arranged above the base (1), the two sieve bodies (2) are connected to each other via a connecting plate (3), the base (1) is connected to the two sieve bodies (2) via a vibration component, a collecting frame (4) is placed on the base (1), and the collecting frame (4) is located directly below the two sieve bodies (2); A partition (5) is fixedly installed in the middle part of the two sieve bodies (2); a slide rail (7) is fixedly installed on the base (1) through two support rods (6); a slider (8) is slidably installed on the slide rail (7); a feeding nozzle (9) is fixedly installed on the slider (8); the axis of the partition (5) coincides with that of the slide rail (7); and a transmission component for driving the slider (8) to move back and forth left and right is provided on the base (1).

2. The integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen according to claim 1 is characterized in that: The vibration assembly comprises a plurality of vibration springs (10) vertically fixedly mounted on a base (1) and two vibration motors (11) symmetrically fixedly mounted on the base (1); the upper ends of the plurality of vibration springs (10) are fixedly connected to the lower surface of a lower sieve body (2); and the output ends of the two vibration motors (11) are fixedly connected to the side surfaces of the lower sieve body (2).

3. The integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen according to claim 1 is characterized in that: The transmission assembly comprises a reciprocating screw (12) mounted on a base (1) via two vertical rods for horizontal rotation, a driving motor (13) fixedly mounted on the vertical rods, a moving block (14) threadedly sleeved on the reciprocating screw (12), a first spring rod (15) fixedly mounted on the moving block (14), and an isosceles triangle plate (17) fixedly mounted on a slider (8) via an L-shaped connecting block (16); an output shaft of the driving motor (13) is fixedly connected to one end of the reciprocating screw (12); a limiting assembly for limiting the rotation of the moving block (14) is provided between the two vertical rods; and the isosceles triangle plate (17) is located on the action path of the first spring rod (15).

4. The integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen according to claim 3 is characterized in that: The limiting assembly comprises a limiting rod (18) fixedly installed horizontally between two vertical rods, a limiting hole is opened on the moving block (14), and the limiting rod (18) is slidably inserted in the limiting hole.

5. The integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen according to claim 1 is characterized in that: Rectangular openings are provided at both ends of the sieve body (2), and blocking components are provided in the two rectangular openings. Two scrapers (19) are slidably provided in the sieve body (2), and the two scrapers (19) are located on both sides of the partition (5). The two scrapers (19) are horizontally slidably installed in the sieve body (2) through a sliding component.

6. The integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen according to claim 5 is characterized in that: The upper end of the sieve body (2) is provided with a strip hole connected to the rectangular opening, the blocking assembly comprises a baffle (20) slidably inserted in the strip hole, two second spring rods (21) symmetrically fixedly mounted on the upper end of the baffle (20), and two support rods (22) respectively fixedly mounted on one end of the two second spring rods (21), the two support rods (22) are fixedly mounted on the sieve body (2), and the lower end of the baffle (20) is sealed and inserted in the rectangular opening.

7. The integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen according to claim 6 is characterized in that: One end of the screen body (2) is symmetrically provided with moving holes, and the sliding assembly comprises two moving rods (23) respectively slidably mounted in the two moving holes, a connecting rod (24) fixedly mounted on one end of the two moving rods (23), and two telescopic springs (25) respectively sleeved on the two moving rods (23), and one end of the two moving rods (23) away from the connecting rod (24) is inserted into the screen body (2) and fixedly connected to the scraper (19).

8. The integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen according to claim 7 is characterized in that: An L-shaped rod (26) is symmetrically fixedly mounted on the upper end of the baffle (20), a right-angled triangle block (27) is fixedly mounted between the two L-shaped rods (26), and an L-shaped top rod (28) is fixedly mounted on the upper end of the scraper (19), and the top rod (28) and the right-angled triangle block (27) are in the same vertical plane.

9. The integrated high-efficiency and energy-saving double-layer pulp purification vibrating frame screen according to claim 7, characterized in that: Guide plates (29) are fixedly installed at both ends of the two sieve bodies (2) in an inclined manner, and the guide plates (29) are located directly below the rectangular opening. Waste slag frames (30) are symmetrically placed on the base (1), and the two waste slag frames (30) are located directly below the multiple guide plates (29).

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