Anti-clogging pulp screening device

Abstract

The utility model relates to papermaking industry field discloses a kind of anti-blocking paper pulp screening devices, including shell, the top of the shell is fixedly connected with water storage tank, the shell outer wall is fixedly connected with input pipe one, the side of the shell away from input pipe two is fixedly connected with water pump, the inside of the shell is provided with vibration assembly, the both ends of the water pump are fixedly connected output pipe and input pipe one respectively, the bottom of the water storage tank is evenly installed with water head, the inside of the shell is fixedly connected with water storage pool, the inner wall portion of the shell is installed with screen one, the screen one is fixedly connected with screen two directly below, the screen two is fixedly connected with filter screen directly below. In the utility model, by water pump, output pipe, input pipe two, water head, water storage pool and the structure cooperation, realize the repeated use of water resource in paper pulp screening, help to reduce production cost and improve water resource utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the papermaking industry, and in particular to a pulp screening device that prevents clogging. Background Technology

[0002] A clog-resistant pulp screening device is used to screen pulp. Through a specific structure, the pulp is evenly distributed on the screen, and the pulp is screened according to size using the screen. At the same time, various anti-clogging methods such as vibration, high-pressure water washing, and ultrasound are used to ensure that the screen is unobstructed, so as to effectively separate and collect qualified pulp from impurities.

[0003] The basic structure of a pulp screening device includes a pulp inlet, a flow guiding component, a screen, anti-clogging components (such as a vibration device, a high-pressure water nozzle, etc.), a qualified pulp collection area, and an impurity collection area. Its working principle is that after the pulp flows in through the inlet, it is evenly dispersed to the screen by the flow guiding component. The screen is screened according to the aperture size, and the anti-clogging component keeps the screen unobstructed. Finally, the qualified pulp that passes through the screen and the impurities that are intercepted by the screen are collected separately.

[0004] In the actual application of pulp screening equipment, most of the water is discharged along with the screened impurities and is difficult to retain and reuse in the screening process. From the perspective of the entire workflow, water mainly plays the role of assisting screening and carrying away impurities. However, under the current operating mode, there is a lack of effective ways or corresponding mechanisms to collect, treat and reuse this water in subsequent screening stages. As a result, water needs to be replenished in each screening operation, which increases water consumption to a certain extent and will have a certain impact on the overall operating cost. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an anti-clogging pulp screening device, which aims to improve the problem of the inability to recycle water resources in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A clog-resistant pulp screening device includes a housing, a water storage tank fixedly connected to the top of the housing, an input pipe fixedly connected to the outer wall of the housing, a water pump fixedly connected to the side of the housing away from the input pipe, a vibration assembly installed inside the housing, an output pipe and an input pipe fixedly connected to both ends of the water pump, spray nozzles evenly installed at the bottom of the water storage tank, a water storage pool fixedly connected inside the housing, a screen one installed on the inner wall of the housing, a screen two fixedly connected directly below the screen one, a filter screen fixedly connected directly below the screen two, a groove formed at the top of the filter screen, and a rotating rod fixedly connected inside the screen two.

[0008] As a further description of the above technical solution:

[0009] The vibration assembly includes a motor, which is installed on the side of the housing near the second input pipe. The output end of the motor is fixedly connected to a rotating shaft. A fixing ring is installed between the housing and the rotating shaft. Eccentric blocks are evenly fixedly connected to the outer circumference of the rotating shaft. A spring is fixedly connected between the second screen and the groove.

[0010] As a further description of the above technical solution:

[0011] The output pipe is fixedly connected inside the water storage tank, and the screen is located directly below the spray head;

[0012] As a further description of the above technical solution:

[0013] The input pipe is fixedly connected inside the water storage tank, and the spray head is connected to the output pipe through the water storage tank;

[0014] As a further description of the above technical solution:

[0015] The output pipe is fixedly connected to the output end of the water pump, and the input pipe is fixedly connected to the input end of the water pump.

[0016] As a further description of the above technical solution:

[0017] The vibration assembly is positioned directly above the water storage tank, and the second screen is installed on the inner wall of the outer casing;

[0018] As a further description of the above technical solution:

[0019] The filter screen is located directly above the water storage tank, and the rotating rod is rotatably connected to the inner wall of the outer shell;

[0020] As a further description of the above technical solution:

[0021] The eccentric block abuts against the bottom of the second screen, and the rotating shaft is rotatably connected inside the fixed ring.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by starting the water pump, the water in the water storage tank is output to the water storage tank through the output pipe via the input pipe two. The water in the water storage tank is sprayed onto the screen one through the spray head. The screen one falls into the screen two, the filter screen, and then into the water storage tank, thereby realizing the reuse of water resources in pulp screening, reducing production costs, and improving water resource utilization efficiency.

[0024] 2. In this utility model, the rotating shaft is driven by a motor to rotate, and the rotating shaft drives the eccentric block to rotate. The eccentric block periodically strikes the screen two, which, together with the spring and the rotating rod, causes the screen two to vibrate at high speed, improving the screening efficiency. This helps to improve the pulp screening efficiency and avoid clogging during the screening process, thereby improving the working efficiency and operation quality of this device. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an anti-clogging pulp screening device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the input pipe 2 of the anti-clogging pulp screening device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the screen structure of an anti-clogging pulp screening device proposed in this utility model.

[0028] Figure 4 A schematic diagram of the water pump structure of an anti-clogging pulp screening device proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the motor structure of an anti-clogging pulp screening device proposed in this utility model.

[0030] Legend:

[0031] 1. Outer shell; 2. Water tank; 3. Input pipe one; 4. Water pump; 5. Vibration assembly; 51. Motor; 52. Rotating shaft; 53. Fixing ring; 54. Eccentric block; 55. Spring; 6. Output pipe; 7. Input pipe two; 8. Spray head; 9. Water storage tank; 10. Screen one; 11. Screen two; 12. Filter screen; 13. Groove; 14. Rotating rod. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] See attached document Figure 1 -Appendix Figure 4A clog-resistant pulp screening device includes a housing 1, a water storage tank 2 fixedly connected to the top of the housing 1, an input pipe 3 fixedly connected to the outer wall of the housing 1, a water pump 4 fixedly connected to the side of the housing 1 away from the input pipe 3, a vibration assembly 5 installed inside the housing 1, an output pipe 6 and an input pipe 7 fixedly connected to the two ends of the water pump 4 respectively, spray nozzles 8 evenly installed at the bottom of the water storage tank 2, a water storage pool 9 fixedly connected inside the housing 1, a screen 10 installed on the inner wall of the housing 1, a screen 11 fixedly connected directly below the screen 10, and a filter screen 12 fixedly connected directly below the screen 11. The top of screen 12 has a groove 13. A rotating rod 14 is fixedly connected inside screen 11. The output pipe 6 is fixedly connected inside the water storage tank 2. Screen 10 is positioned directly below the spray head 8. The input pipe 7 is fixedly connected inside the water storage pool 9. The spray head 8 is connected to the output pipe 6 through the water storage tank 2. The output pipe 6 is fixedly connected to the output end of the water pump 4. The input pipe 7 is fixedly connected to the input end of the water pump 4. The vibration assembly 5 is positioned directly above the water storage pool 9. Screen 11 is installed on the inner wall of the outer casing 1. The filter screen 12 is positioned directly above the water storage pool 9. The rotating rod 14 is rotatably connected to the inner wall of the outer casing 1.

[0034] Specifically, by starting water pump 4, water pump 4 will draw water from water storage tank 9. The drawn water first passes through input pipe 7, then through water pump 4, and finally through output pipe 6 to water storage tank 2. The water in water storage tank 2 is sprayed onto screen 10 through spray head 8. On screen 10, the water dissolves and combines with the pulp. The fine pulp after screening falls into screen 11. Screen 11 flows into filter screen 12 through the cooperation of vibration component 5 and rotating rod 14. Filter screen 12 decomposes the water and flows into water storage tank 9. Water pump 4 sucks it in again for reuse. This process reuses water resources in pulp screening, reduces production costs, and improves water resource utilization efficiency. It establishes a local water cycle, which helps save production water and improves pulp screening quality.

[0035] See attached document Figure 3 and attached Figure 5 The vibration component 5 includes a motor 51, which is installed on the side of the housing 1 near the input pipe 3. The output end of the motor 51 is fixedly connected to a rotating shaft 52. A retaining ring 53 is installed between the housing 1 and the rotating shaft 52. An eccentric block 54 is evenly fixedly connected to the outer circumference of the rotating shaft 52. A spring 55 is fixedly connected between the screen 11 and the groove 13. The eccentric block 54 abuts against the bottom of the screen 11. The rotating shaft 52 is rotatably connected inside the retaining ring 53.

[0036] Specifically, when the motor 51 is started, the motor 51 will drive the rotating shaft 52 to rotate together. The rotation of the rotating shaft 52 will drive the eccentric block 54 to rotate together. The eccentric block 54 periodically strikes the bottom of the screen 11, thereby causing the screen 11 to move up and down periodically. Combined with the stretching and contracting action of the spring 55 and the support of the rotating rod 14 for the rotation of the screen 11, the screen 11 generates high-frequency vibration, which quickly vibrates and separates the pulp on the surface of the screen 11. This can effectively disperse pulp fiber clumps, reduce the risk of screen clogging, and help improve pulp screening efficiency and uniformity.

[0037] Working principle: First, the operator starts the water pump 4. The input end of the water pump 4 draws water from the water storage tank 9 through the input pipe 2 7 and outputs the water to the water storage tank 2 through the output pipe 6. The water in the water storage tank 2 is sprayed onto the screen 10 through the spray head 8, then through the screen 11, and finally through the filter screen 12 into the water storage tank 9. The water in the water storage tank 9 is then drawn back into the water pump 4 for reuse, thus recycling water resources.

[0038] Secondly, when the pulp is vibrated and screened, the motor 51 is started. The motor 51 drives the rotating shaft 52 to rotate together. The movement of the rotating shaft 52 drives the eccentric block 54 to rotate together. The eccentric block 54 periodically collides with the bottom of the screen 11, causing the screen 11 to move up and down periodically. Combined with the stretching and contraction of the spring 55 and the rotation effect of the rotating rod 14, the screen 11 generates high-frequency vibration, which rapidly vibrates and separates the pulp on the surface of the screen 11.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clog-resistant pulp screening device, comprising a housing (1), characterized in that: A water storage tank (2) is fixedly connected to the top of the outer shell (1). An input pipe (3) is fixedly connected to the outer wall of the outer shell (1). A water pump (4) is fixedly connected to the side of the outer shell (1) away from the input pipe (3). A vibration assembly (5) is provided inside the outer shell (1). An output pipe (6) and an input pipe (7) are fixedly connected to both ends of the water pump (4). Spray heads (8) are evenly installed at the bottom of the water storage tank (2). A water storage pool (9) is fixedly connected inside the outer shell (1). A screen (10) is installed on the inner wall of the outer shell (1). A screen (11) is fixedly connected directly below the screen (10). A filter screen (12) is fixedly connected directly below the screen (11). A groove (13) is opened on the top of the filter screen (12). A rotating rod (14) is fixedly connected inside the screen (11).

2. The anti-clogging pulp screening device according to claim 1, characterized in that: The vibration assembly (5) includes a motor (51), which is installed on the side of the housing (1) near the input pipe (3). The output end of the motor (51) is fixedly connected to a rotating shaft (52). A fixing ring (53) is installed between the housing (1) and the rotating shaft (52). An eccentric block (54) is evenly fixedly connected to the outer circumference of the rotating shaft (52). A spring (55) is fixedly connected between the screen (11) and the groove (13).

3. The anti-clogging pulp screening device according to claim 1, characterized in that: The output pipe (6) is fixedly connected inside the water storage tank (2), and the screen (10) is located directly below the spray head (8).

4. The anti-clogging pulp screening device according to claim 1, characterized in that: The input pipe 2 (7) is fixedly connected inside the water storage tank (9), and the spray head (8) is connected to the output pipe (6) through the water storage tank (2).

5. The anti-clogging pulp screening device according to claim 1, characterized in that: The output pipe (6) is fixedly connected to the output end of the water pump (4), and the input pipe (7) is fixedly connected to the input end of the water pump (4).

6. The anti-clogging pulp screening device according to claim 1, characterized in that: The vibration component (5) is positioned directly above the water storage tank (9), and the second screen (11) is installed on the inner wall of the outer shell (1).

7. The anti-clogging pulp screening device according to claim 1, characterized in that: The filter screen (12) is located directly above the water storage tank (9), and the rotating rod (14) is rotatably connected to the inner wall of the outer shell (1).

8. The anti-clogging pulp screening device according to claim 2, characterized in that: The eccentric block (54) abuts against the bottom of the second screen (11), and the rotating shaft (52) is rotatably connected inside the fixed ring (53).

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