A multi-stage pulp dewatering press

Abstract

This utility model relates to the technical field of pulp dewatering devices, and in particular to a multi-stage pulp dewatering pressing device. Due to the cooperation of the conveyor belt and the conveyor belt, it achieves continuous and efficient dewatering of pulp, improving processing efficiency and the quality of the dewatered pulp. It includes a housing and a feed hopper, with the feed hopper connected to the housing. It also includes a secondary dewatering mechanism, a conveyor belt, a first roller, a second roller, and a conveyor belt. The conveyor belt is located inside the housing, and the first and second rollers are rotatably mounted inside the housing. A drive assembly is provided on the housing to provide power for the rotation of the conveyor belt and the first roller. The conveyor belt is fitted onto the outer walls of the first and second rollers, with a gap between the conveyor belt and the conveyor belt, the gap decreasing from left to right. A discharge port is located at the bottom of the housing, connected to the secondary dewatering mechanism, which performs secondary dewatering of the pulp.

Description

Technical Field

[0001] This utility model relates to the technical field of pulp dewatering devices, and in particular to a multi-stage pulp dewatering pressing device. Background Technology

[0002] The main purpose of pulp dewatering is to remove excess water from the pulp and bring it to a suitable dryness so that subsequent forming, drying and other processes can proceed smoothly.

[0003] Currently, among existing pulp dewatering equipment, such as the patent with authorization announcement number CN219470548U, this utility model relates to the field of papermaking technology, and in particular to an energy-saving pulp dewatering and drying system, including a frame and a pulper and a dryer arranged sequentially on the frame, and further including: a pre-dewatering device for receiving the pulp output from the pulper and pre-dewatering the input pulp before outputting it into the dryer, which at least includes a feed cylinder arranged on the frame with its inlet and outlet connected to the pulp output section of the pulper and the pulp input section of the dryer, respectively.

[0004] However, during the use of the equipment, it was found that the method of squeezing the pulp by driving the extrusion plate toward the filter plate by the drive mechanism is not very convenient for pulp dewatering operations and reduces the efficiency of pulp dewatering. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a multi-stage pulp dewatering press device that achieves continuous and efficient dewatering of pulp through the cooperation of conveyor belts and belts, thereby improving processing efficiency and the quality of pulp dewatering.

[0006] This utility model discloses a multi-stage pulp dewatering pressing device, comprising a housing and a feed hopper connected to the housing; it also includes a secondary dewatering mechanism, a conveyor belt, a first roller, a second roller, and a belt. The conveyor belt is disposed inside the housing, and the first and second rollers are rotatably mounted inside the housing. A drive assembly is provided on the housing to provide power for the rotation of the conveyor belt and the first roller. The belt is fitted onto the outer walls of the first and second rollers, with a gap between the belt and the conveyor belt, the gap decreasing from left to right. A discharge port is provided at the bottom of the housing, and the discharge port is connected to the secondary dewatering mechanism. The connected secondary dewatering mechanism is used for secondary dewatering of pulp. Pulp is fed into the box through the feed hopper, and the pulp falls onto the conveyor belt. The conveyor belt rotates and transports the pulp to the right. At the same time, the first roller rotates and cooperates with the second roller to drive the belt to move circumferentially. This allows the belt and the conveyor belt to squeeze and dewater the pulp through the gap. The dewatered pulp enters the secondary dewatering mechanism through the discharge port, where it is pressed and dewatered again. Due to the cooperation of the conveyor belt and the belt, the pulp achieves continuous and efficient dewatering, improving processing efficiency and the quality of pulp dewatering.

[0007] Preferably, the secondary dewatering mechanism includes a pressing device, a conveying cylinder, a filter screen, spiral blades, and a motor. The conveying cylinder is connected to the outlet of the housing. The filter screen is located on the lower part of the outer wall of the conveying cylinder. The spiral blades are rotatably installed inside the conveying cylinder. The motor is installed on the outer wall of the conveying cylinder, and the output end of the motor is connected to the spiral blades. The pressing device is located at the opening at the right end of the conveying cylinder and is used to press and dewater the pulp. The dewatered pulp on the conveyor belt is discharged into the conveying cylinder. The motor drives the spiral blades to rotate, causing the spiral blades to convey the pulp in the conveying cylinder to the right, so that the pulp is discharged through the opening of the conveying cylinder. The pressing device elastically seals the opening of the conveying cylinder, so that the pulp is pressurized and dewatered a second time when it is discharged. The removed water is discharged downward through the filter screen, improving the effect of multiple pressing and dewatering of the pulp.

[0008] Preferably, the extrusion device includes a top plate, guide columns, bases, and springs. The top plate is located at the outlet of the conveying cylinder. Multiple sets of guide columns are installed on the outer wall of the top plate, and multiple sets of bases are installed on the conveying cylinder. The multiple sets of guide columns slide through the multiple sets of bases, and multiple sets of springs are fitted onto the multiple sets of guide columns. The multiple sets of springs provide elastic pushing to the multiple sets of guide columns, causing the multiple sets of guide columns to drive the top plate to press the outlet of the conveying cylinder, thereby improving the pulp pressing and dewatering effect in the conveying cylinder.

[0009] Preferably, it also includes support rollers, with multiple sets of support rollers rotatably installed inside the housing, and multiple sets of support rollers contacting the lower part of the belt; by supporting the lower part of the belt with multiple sets of support rollers, the effect of the belt squeezing and dewatering the pulp is improved.

[0010] Preferably, it also includes a first shovel plate and a second shovel plate, both of which are installed inside the housing. The first shovel plate contacts the outer wall of the belt, and the second shovel plate contacts the outer wall of the conveyor track; thus improving the scraping and cleaning effect of pulp adhering to the surface of the belt and conveyor track.

[0011] Preferably, it also includes a flow guide platform and a drain valve. The flow guide platform is located at the bottom of the box body, and the drain valve is connected to the box body. The water removed from the pulp inside the box body is guided and transported by the flow guide platform and discharged by the drain valve.

[0012] Preferably, it also includes a collection tank, which is located below the filter screen; this improves the convenience of collecting the water removed from the conveying cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Pulp is fed into the box through the feed hopper, and the pulp entering the box falls onto the conveyor belt. The conveyor belt rotates and transports the pulp to the right. At the same time, the first roller rotates and cooperates with the second roller to drive the belt to move circumferentially, so that the belt and the conveyor belt cooperate through the gap to squeeze and dewater the pulp. The dewatered pulp enters the secondary dewatering mechanism through the discharge port, and is pressed and dewatered again by the secondary dewatering mechanism. Due to the cooperation of the conveyor belt and the belt, the pulp achieves continuous and efficient dewatering effect, improves processing efficiency, and improves the dewatering quality of the pulp. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is an isometric structural diagram of the connection between the box body and the feed hopper, etc.

[0016] Figure 3 This is a partial isometric structural diagram of the connection between the conveyor cylinder and the filter screen, etc.

[0017] Figure 4 This is a partial isometric structural diagram of the connection between the first roller and the belt, etc.

[0018] Figure 5 This is a partial isometric schematic diagram of the belt and support rollers and other structures.

[0019] The following are labels in the attached diagram: 1. Box body; 2. Feed hopper; 3. Conveyor track; 4. First roller; 5. Second roller; 6. Belt; 7. Conveyor cylinder; 8. Filter screen; 9. Spiral blade; 10. Motor; 11. Top plate; 12. Guide column; 13. Base; 14. Spring; 15. Support roller; 16. First shovel; 17. Second shovel; 18. Guide platform; 19. Drain valve; 20. Collection tank. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] like Figures 1 to 5 As shown, this utility model discloses a multi-stage pulp dewatering pressing device, including a housing 1 and a feed hopper 2, with the feed hopper 2 connected to the housing 1; it also includes a secondary dewatering mechanism, a conveyor belt 3, a first roller 4, a second roller 5, and a belt 6. The conveyor belt 3 is disposed inside the housing 1, and the first roller 4 and the second roller 5 are rotatably mounted inside the housing 1. A drive assembly is provided on the housing 1 to provide power for the rotation of the conveyor belt 3 and the first roller 4. The belt 6 is fitted on the outer walls of the first roller 4 and the second roller 5, and a gap is provided between the belt 6 and the conveyor belt 3, with the gap decreasing from left to right. A discharge port is provided at the lower part of the housing 1, and the discharge port is connected to the secondary dewatering mechanism, which is used to dewater the pulp for a second time.

[0022] like Figure 2 As shown, the secondary dewatering mechanism includes a squeezing device, a conveying cylinder 7, a filter screen 8, a spiral blade 9, and a motor 10. The conveying cylinder 7 is connected to the outlet of the housing 1. The filter screen 8 is located on the lower part of the outer wall of the conveying cylinder 7. The spiral blade 9 is rotatably installed inside the conveying cylinder 7. The motor 10 is installed on the outer wall of the conveying cylinder 7. The output end of the motor 10 is connected to the spiral blade 9. The squeezing device is located at the opening at the right end of the conveying cylinder 7. The squeezing device is used to squeeze and dewater the pulp.

[0023] In this embodiment, pulp is fed into the housing 1 through the feed hopper 2. The pulp entering the housing 1 falls onto the conveyor belt 3. The conveyor belt 3 rotates and transports the pulp to the right. At the same time, the first roller 4 rotates and cooperates with the second roller 5 to drive the belt 6 to move circumferentially. This allows the belt 6 and the conveyor belt 3 to squeeze and dewater the pulp through the gap. The dewatered pulp enters the secondary dewatering mechanism through the discharge port. The secondary dewatering mechanism further presses and dewaters the pulp. Due to the cooperation between the conveyor belt 3 and the belt 6, a continuous and efficient dewatering effect is achieved, improving processing efficiency and the quality of pulp dewatering. Example 2

[0024] Based on Example 1, such as Figure 3As shown, this utility model discloses a multi-stage pulp dewatering pressing device. The pressing device includes a top plate 11, guide columns 12, bases 13, and springs 14. The top plate 11 is located at the outlet of the conveying cylinder 7. Multiple sets of guide columns 12 are installed on the outer side wall of the top plate 11. Multiple sets of bases 13 are installed on the conveying cylinder 7. The multiple sets of guide columns 12 slide through the multiple sets of bases 13 respectively. Multiple sets of springs 14 are respectively fitted onto the multiple sets of guide columns 12.

[0025] like Figure 4 As shown, it also includes support rollers 15, and multiple sets of support rollers 15 are rotatably installed inside the housing 1, with the multiple sets of support rollers 15 contacting the lower part of the belt 6;

[0026] like Figure 4 The diagram also includes a first shovel plate 16 and a second shovel plate 17. Both the first shovel plate 16 and the second shovel plate 17 are installed inside the housing 1. The first shovel plate 16 is in contact with the outer wall of the belt 6, and the second shovel plate 17 is in contact with the outer wall of the conveyor track 3.

[0027] like Figure 4 As shown, it also includes a flow guide 18 and a drain valve 19. The flow guide 18 is located at the bottom of the box 1, and the drain valve 19 is connected to the box 1.

[0028] like Figure 1 As shown, it also includes a collection tank 20, which is located below the filter screen 8;

[0029] In this embodiment, the dewatered pulp on the conveyor belt 3 is discharged into the conveyor cylinder 7. The motor 10 drives the spiral blades 9 to rotate, causing the spiral blades 9 to convey the pulp in the conveyor cylinder 7 to the right, so that the pulp is discharged through the opening of the conveyor cylinder 7. The opening of the conveyor cylinder 7 is elastically sealed by the squeezing device, so that the pulp is squeezed and dewatered a second time when it is discharged. The removed water is discharged downward through the filter screen 8, which improves the effect of multiple pressing and dewatering of the pulp. Multiple sets of springs 14 provide elastic push to multiple sets of guide columns 12, so that the multiple sets of guide columns 12 drive the top plate 11 to press the outlet of the conveyor cylinder 7, which improves the pressing and dewatering effect of the pulp in the conveyor cylinder 7.

[0030] This utility model discloses a multi-stage pulp dewatering pressing device. During operation, pulp is fed into the housing 1 through the feed hopper 2. The pulp entering the housing 1 falls onto the conveyor belt 3. The conveyor belt 3 rotates and transports the pulp to the right. At the same time, the first roller 4 rotates and cooperates with the second roller 5 to drive the belt 6 to move circumferentially. This allows the belt 6 and the conveyor belt 3 to squeeze and dewater the pulp through the gap. The dewatered pulp enters the secondary dewatering mechanism through the discharge port, where it is pressed and dewatered again.

[0031] The conveyor belt 3 and motor 10 of the multi-stage pulp dewatering pressing device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-stage press device for dewatering pulp, comprising a box (1) and a feeding hopper (2) which is arranged in communication with the box (1); characterized in that, It also includes a secondary dewatering mechanism, a conveyor belt (3), a first roller (4), a second roller (5), and a belt (6). The conveyor belt (3) is located inside the housing (1). The first roller (4) and the second roller (5) are rotatably installed inside the housing (1). A drive assembly is provided on the housing (1) to provide power for the rotation of the conveyor belt (3) and the first roller (4). The belt (6) is fitted on the outer side wall of the first roller (4) and the second roller (5). There is a gap between the belt (6) and the conveyor belt (3), which gradually decreases from left to right. A discharge port is provided at the bottom of the housing (1), which is connected to the secondary dewatering mechanism. The secondary dewatering mechanism is used to dewater the pulp for a second time.

2. A multi-stage press for dewatering pulp as claimed in claim 1, wherein, The secondary dewatering mechanism includes a squeezing device, a conveying cylinder (7), a filter screen (8), a spiral blade (9), and a motor (10). The conveying cylinder (7) is connected to the outlet of the box (1). The filter screen (8) is set on the lower part of the outer wall of the conveying cylinder (7). The spiral blade (9) is rotatably installed inside the conveying cylinder (7). The motor (10) is installed on the outer wall of the conveying cylinder (7). The output end of the motor (10) is connected to the spiral blade (9). The squeezing device is set at the opening at the right end of the conveying cylinder (7). The squeezing device is used to squeeze and dewater the pulp.

3. The multi-stage pulp dewatering press device as described in claim 2, characterized in that, The extrusion device includes a top plate (11), guide columns (12), bases (13) and springs (14). The top plate (11) is located at the outlet of the conveying cylinder (7). Multiple sets of guide columns (12) are installed on the outer side wall of the top plate (11). Multiple sets of bases (13) are installed on the conveying cylinder (7). Multiple sets of guide columns (12) slide through the multiple sets of bases (13) respectively. Multiple sets of springs (14) are fitted onto the multiple sets of guide columns (12) respectively.

4. A multi-stage press for dewatering paper pulp as claimed in claim 1, wherein, It also includes support rollers (15), multiple sets of support rollers (15) are rotatably installed inside the housing (1), and multiple sets of support rollers (15) are in contact with the lower part of the belt (6).

5. A multi-stage press for dewatering paper pulp as claimed in claim 1, wherein, It also includes a first shovel plate (16) and a second shovel plate (17). The first shovel plate (16) and the second shovel plate (17) are both installed inside the housing (1). The first shovel plate (16) contacts the outer wall of the belt (6), and the second shovel plate (17) contacts the outer wall of the conveyor track (3).

6. A multi-stage press for dewatering pulp as claimed in claim 1, wherein, It also includes a flow guide (18) and a drain valve (19). The flow guide (18) is located at the bottom of the box (1), and the drain valve (19) is connected to the box (1).

7. A multi-stage press for dewatering paper pulp as claimed in claim 2, wherein, It also includes a collection tank (20), which is located below the filter screen (8).

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