Anti-flocculation device for bamboo-wood pulp feeding

Abstract

The utility model discloses a kind of for bamboo wood pulp feeding anti-flocculation device, belong to papermaking technical field, including dissolving tank, grating is slidably connected in dissolving tank interior, the both ends of the periphery of dissolving tank are evenly installed with mounting seat, water inlet pipe is installed in mounting seat interior, first regulating valve is installed in one end of water inlet pipe, the both ends of the periphery of the top of dissolving tank are evenly equipped with support seat, water outlet pipe is rotatably connected with the top of support seat, one side of four water outlet pipes is equipped with a row of nozzle, one end of four water outlet pipes is equipped with swivel joint, the other end of four swivel joints is equipped with second regulating valve, and the other end of four second regulating valves is evenly communicated with water inlet pipe, by external water source in one end of first regulating valve, subsequently discharge from nozzle, reach the effect of flushing dilution bamboo mixed pulp powder in grating eye, so that it quickly and smoothly enters into dissolving tank, avoid forming the case of " flocculation " on grating.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, specifically to an anti-flocculation device for bamboo and wood pulp feeding. Background Technology

[0002] Mechanically ground bamboo-wood mixed pulp is a common type of pulp in the papermaking industry. It refers to pulp made by mechanically grinding a mixture of bamboo and wood raw materials. It is one of the basic raw materials used to manufacture various types of paper. During the process of feeding mechanically ground bamboo-wood mixed pulp into the dissolving tank, in order to prevent various impurities of different sizes from being mixed in the pulp and avoid the pulp pump, paper machine pump, and flow control valves after the dissolving tank from being blocked by impurities and causing machine shutdown, a grid barrier device with an aperture size of a few centimeters is added above the dissolving tank. However, because the fiber bundles in the pulp are long, they are prone to "flocculation" and "bridging" on the grid apertures, which prevents the pulp from passing through the grid smoothly into the dissolving tank, affecting production efficiency. The traditional approach is to enlarge the grid apertures.

[0003] Although the above-mentioned technology enlarges the mesh size of the grid, it still has the problem of not being able to effectively prevent "flocculation". If the mesh size is enlarged, it can only block very large debris. It has almost no effect on blocking small debris mixed in the mechanically ground bamboo and wood pulp. Furthermore, during the dissolution of the mechanically ground bamboo and wood pulp, problems such as clogging of subsequent pumps or regulating valves often occur, causing machine shutdowns. The large-mesh grid is practically useless. Utility Model Content

[0004] The purpose of this invention is to provide an anti-flocculation device for bamboo and wood pulp, so as to solve the problem mentioned in the background art that the current bamboo and wood mixed pulp powder cannot effectively prevent "flocculation" when it is added to the dissolving tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-flocculation device for bamboo and wood pulp feeding, comprising a dissolving tank, a grid slidably connected inside the dissolving tank, mounting seats installed at both ends of the dissolving tank, an inlet pipe installed inside the mounting seat, a first regulating valve installed at one end of the inlet pipe, support seats provided at both ends of the top of the dissolving tank, an outlet pipe rotatably connected to the top of each support seat, a row of nozzles provided on one side of each of the four outlet pipes, a rotary joint provided at one end of each of the four outlet pipes, a second regulating valve provided at the other end of each of the four rotary joints, and the other ends of each of the four second regulating valves communicating with the inlet pipe, a vibration component for vibrating the grid inside the dissolving tank, and a rotating component for driving the outlet pipes to rotate at the top of the grid.

[0006] Preferably, the vibration assembly includes four support plates respectively disposed around the inside of the dissolving tank, each of the four support plates having a spring on its top, and the other end of each of the four springs being connected to the bottom perimeter of the grid.

[0007] Preferably, a drive motor is installed at one end of the dissolving tank, and the output end of the drive motor is provided with a rotating shaft rotatably connected inside the dissolving tank. The other end of the rotating shaft is provided with an eccentric wheel located below the grid.

[0008] Preferably, the rotating assembly includes four racks respectively disposed around the top of the grille, and one end of each of the four water outlet pipes is provided with a rotating gear that meshes with the four racks.

[0009] Preferably, the dissolving pool is surrounded by mounting plates, and each of the four mounting plates is equipped with a detection radar that is electrically connected to the first regulating valve and the second regulating valve.

[0010] Preferably, a discharge pipe is provided at one end of the dissolving tank, and a concentration sensor is installed at one end of the bottom of the dissolving tank.

[0011] Preferably, the nozzles are equidistant from each other and are all inclined.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By connecting a water source to one end of the first regulating valve, the water is guided to the inside of the outlet pipe under the action of the inlet pipe, and then discharged from the nozzle. This achieves the effect of rinsing and diluting the bamboo and wood mixed pulp powder in the grid holes, allowing it to quickly and smoothly enter the dissolving tank and avoiding the formation of "flocculation" on the grid.

[0014] The vibration components are designed to drive the grid to vibrate, which can further prevent the bamboo and wood mixed pulp powder from accumulating on the grid surface, and can also disperse the grid stress, reducing local overload damage caused by impurity accumulation.

[0015] The rotating component enables the water outlet pipe and nozzle to swing back and forth, expanding the water flow radiation area of ​​the nozzle from a fixed single point to a dynamic fan-shaped area, which can more comprehensively cover the target surface and avoid the problem of local over- or under-strength spray caused by fixed spray. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the connection structure between the grille and the support plate of this utility model;

[0020] Figure 5 This is a front view schematic diagram of the dissolving tank structure of this utility model;

[0021] Figure 6 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0022] In the diagram: 1. Dissolving tank; 2. Grille; 3. Mounting base; 4. Inlet pipe; 5. First regulating valve; 6. Support base; 7. Outlet pipe; 8. Nozzle; 9. Rotary joint; 10. Second regulating valve; 11. Support plate; 12. Rotating shaft; 13. Eccentric wheel; 14. Rack; 15. Rotating gear; 16. Detection radar; 17. Concentration sensor. Detailed Implementation

[0023] 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.

[0024] This utility model provides the following technical solution: an anti-flocculation device for bamboo and wood pulp dispensing.

[0025] Example 1: To address the problem of ineffective "flocculation" prevention when bamboo and wood mixed pulp is added to the dissolving tank 1, the following is disclosed: The dissolving tank 1 has a grid 2 slidably connected inside; mounting bases 3 are installed at both ends of the dissolving tank 1; water inlet pipes 4 are installed inside the mounting bases 3; and a first regulating valve 5 is installed at one end of the water inlet pipe 4 (e.g., ...). Figure 1 As shown), the top of the dissolving tank 1 is equipped with support bases 6 at both ends. Each support base 6 is rotatably connected to a water outlet pipe 7. A row of nozzles 8 is provided on one side of each of the four water outlet pipes 7 for spraying the surface of the grid 2. Each of the four water outlet pipes 7 has a rotary joint 9 at one end (as shown). Figures 2-4 and Figure 6 As shown), the other end of each of the four rotary joints 9 is equipped with a second regulating valve 10, and the other end of each of the four second regulating valves 10 is connected to the water inlet pipe 4. The dissolving tank 1 is also surrounded by mounting plates, and each of the four mounting plates is equipped with a detection radar 16 (e.g., [missing information]) electrically connected to the first regulating valve 5 and the second regulating valve 10. Figures 1-5As shown), it is used to detect the surface of the grid 2. One end of the dissolving tank 1 is equipped with a discharge pipe. One end of the bottom of the dissolving tank 1 is equipped with a concentration sensor 17. The nozzles 8 are evenly distributed and all nozzles 8 are in an inclined state.

[0026] First, a water source is connected to one end of the first regulating valve 5. Then, the mechanical bamboo and wood mixed pulp is fed onto the grid 2 inside the dissolving tank 1 using a loader. Due to the long fiber bundles in the pulp, "flocculation" and "bridging" phenomena easily form on the mesh of the grid 2, causing the pulp to be unable to pass smoothly through the grid 2 into the dissolving tank 1, affecting the subsequent pulp supply efficiency of the paper machine. The detection radar 16 installed on the mounting plate around the dissolving tank 1 can monitor in real time whether there is pulp accumulation on the grid 2 (e.g., Figures 1-5 As shown), once the detection radar 16 detects slurry accumulation, it immediately triggers the opening of the first regulating valve 5, followed by the opening of the second regulating valve 10 in the corresponding area. Water then flows through the inlet pipe 4 to the rotary joint 9, then into the outlet pipe 7, and finally is sprayed through the nozzle 8 for rinsing (as shown). Figures 1-4 and Figure 6 As shown), high-pressure white water dilutes the slurry to a solid content of approximately 5.5%, breaking down the "flocculent layer" and "fiber bridges," allowing the slurry to quickly pass through the grid 2 into the dissolving tank 1, improving slurry throughput and enabling continuous feeding. Due to the use of regional control, when the detection radar 16 detects no slurry accumulation in a certain area, it automatically closes the second regulating valve 10 of the corresponding branch. The second regulating valve 10 is only activated in areas where slurry accumulation is detected (e.g., Figures 2-4 and Figure 6 As shown in the figure, to avoid wasting water resources by spraying the entire area, the system can achieve on-demand rinsing and achieve the purpose of saving energy and water. The concentration sensor 17 installed at the bottom of the dissolving tank 1 can continuously monitor the pulp concentration. If the concentration is too high, the white water supply will be automatically increased. If the concentration is stable, the white water supply will be reduced or turned off to form a closed-loop control system to ensure that the pulp concentration is stable and meets the subsequent pulp supply requirements of the paper machine.

[0027] Example 2: Unlike Example 1, the vibration assembly further prevents "flocculation." It discloses that: a vibration assembly for vibrating the grid 2 is installed inside the dissolving tank 1; a rotating assembly for rotating the outlet pipe 7 is installed on the top of the grid 2; the vibration assembly includes four support plates 11 respectively arranged around the perimeter of the dissolving tank 1; and springs (such as springs) are installed on the top of each of the four support plates 11. Figure 3 and Figure 4As shown), it is used for the reciprocating movement of the grid 2, and the other ends of the four springs are respectively connected to the bottom perimeter of the grid 2. A drive motor is installed at one end of the dissolving tank 1, and the output end of the drive motor is provided with a rotating shaft 12 rotatably connected inside the dissolving tank 1. The other end of the rotating shaft 12 is provided with an eccentric wheel 13 located below the grid 2. The rotating assembly includes four racks 14 respectively arranged around the top perimeter of the grid 2 (as shown). Figures 1-4 and Figure 6 As shown), one end of each of the four water outlet pipes 7 is provided with a rotating gear 15 that meshes with the four racks 14.

[0028] When there is "flocculation" on the surface of the grid 2, the drive motor can be started to drive the rotating shaft 12 and the eccentric wheel 13 to rotate. When the eccentric wheel 13 contacts the grid 2, it will be pushed up inside the dissolving tank 1 by the action of the spring. When the eccentric wheel 13 moves away from the grid 2, the grid 2 will be reset by the action of the spring (e.g., Figure 3 and Figure 4 As shown), it reciprocates, further improving the anti-flocculation effect. When the grille 2 rises and falls, it also drives the rack 14 to rise and fall. Then, under the action of the rotating gear 15, it drives the water outlet pipe 7 to reciprocate, thereby driving the nozzle 8 to reciprocate (as shown). Figures 1-4 and Figure 6 As shown in the figure, this increases the coverage of the spray and further avoids water waste.

[0029] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An anti-flocculation device for bamboo and wood pulp feeding, comprising a dissolving tank (1), wherein a grid (2) is slidably connected inside the dissolving tank (1). Its features are: The dissolving tank (1) is equipped with mounting bases (3) at both ends around its perimeter. An inlet pipe (4) is installed inside the mounting base (3). A first regulating valve (5) is installed at one end of the inlet pipe (4). Support bases (6) are provided at both ends around the top of the dissolving tank (1). An outlet pipe (7) is rotatably connected to the top of each support base (6). A row of nozzles (8) is provided on one side of each of the four outlet pipes (7). A rotary joint (9) is provided at one end of each of the four outlet pipes (7). A second regulating valve (10) is provided at the other end of each of the four rotary joints (9). The other end of each of the four second regulating valves (10) is connected to the inlet pipe (4). A vibration component for vibrating the grid (2) is provided inside the dissolving tank (1). A rotating component for driving the outlet pipe (7) to rotate is provided on the top of the grid (2).

2. The anti-flocculation device for bamboo and wood pulp feeding according to claim 1, characterized in that: The vibration assembly includes four support plates (11) respectively arranged around the inside of the dissolving tank (1). Each of the four support plates (11) is provided with a spring on its top, and the other end of each of the four springs is connected to the bottom of the grid (2).

3. The anti-flocculation device for bamboo-wood pulp feeding according to claim 2, characterized in that: One end of the dissolving tank (1) is equipped with a drive motor, and the output end of the drive motor is provided with a rotating shaft (12) rotatably connected inside the dissolving tank (1). The other end of the rotating shaft (12) is provided with an eccentric wheel (13) located below the grid (2).

4. The anti-flocculation device for bamboo-wood pulp feeding according to claim 1, characterized in that: The rotating assembly includes four racks (14) respectively arranged around the top of the grille (2), and one end of each of the four water outlet pipes (7) is provided with a rotating gear (15) that meshes with the four racks (14).

5. The anti-flocculation device for bamboo-wood pulp feeding according to claim 1, characterized in that: The dissolving pool (1) is surrounded by mounting plates, and each of the four mounting plates is equipped with a detection radar (16) that is electrically connected to the first regulating valve (5) and the second regulating valve (10).

6. The anti-flocculation device for bamboo and wood pulp feeding according to claim 1, characterized in that: The dissolving tank (1) is provided with a discharge pipe at one end, and a concentration sensor (17) is installed at the bottom of the dissolving tank (1).

7. The anti-flocculation device for bamboo-wood pulp feeding according to claim 1, characterized in that: The nozzles (8) are equidistant from each other and are all tilted.

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