Rapid diluting device for high-concentration paper pulp
By designing a vertical chute and mixing mechanism, the high-consistency pulp is diluted using turbulence in the guide plate and dilution tank, solving the problems of pulp pump blockage and unstable flow, and achieving efficient pulp dilution and stable conveying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-10
AI Technical Summary
Insufficient dilution of high-consistency pulp can easily lead to blockage of the pulp pump and unstable flow, affecting the production process.
The system employs a vertical chute and mixing mechanism, including a guide plate and a dilution tank. The guide plate guides the high-consistency pulp into the dilution tank, and the water sprayed from the dilution pipe creates turbulence for initial dilution. Subsequently, the pulp is further diluted by collision with the liquid surface in the dilution tank, and finally output through a pulp pump.
It achieves rapid and uniform dilution of high-consistency pulp, avoids clogging of pulp pumps and unstable flow, has a simple structure and low cost, and is suitable for the conveying needs of pulp pumps.
Smart Images
Figure CN224100435U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to papermaking technical field especially relates to a high concentration paper pulp quick dilution device. BACKGROUND
[0002] Under the environment of energy saving and emission reduction, the trend of high concentration development in the washing and bleaching process of paper pulp is inevitable, whether the high concentration paper pulp is fully and quickly diluted directly affects the conveying efficiency of the paper pulp and the working state of the next process equipment, in the actual production process, the high concentration paper pulp especially the high concentration paper pulp with dryness greater than or equal to 30% directly poured into the pulp tank often causes the paper pulp to be not fully diluted due to the poor performance of the stirrer, and further causes the pulp pump to be blocked, the flow to be unstable or causes the pulp tank to be silted and affects the whole production process. SUMMARY
[0003] Therefore, the utility model provides a high concentration paper pulp quick dilution device, and the main purpose is to quickly dilute the high concentration paper pulp.
[0004] In order to achieve the above purpose, the utility model mainly provides the following technical scheme:
[0005] The utility model provides a high concentration paper pulp quick dilution device, which comprises a vertical chute and a mixing mechanism.
[0006] The mixing mechanism comprises a guide plate and a dilution tank, the guide plate and the dilution tank are arranged in the vertical chute from top to bottom, there is a gap between one side wall of the dilution tank and the inner side wall of the vertical chute, the other side wall of the dilution tank is connected to a dilution liquid pipe, the guide plate is inclined downward, used for guiding the concentrated paper pulp to the dilution tank, and the vertical chute area below the dilution tank is a pulp pool.
[0007] The purpose of the utility model and the technical problems thereof can also be further realized by the following technical measures.
[0008] Optionally, the included angle between the guide plate and the inner side wall of the vertical chute is less than 45 degrees.
[0009] Optionally, the dilution liquid pipe comprises a dilution main pipe and a plurality of branch pipes, the dilution main pipe extends along the width direction of the dilution tank, one end of the plurality of branch pipes is fixedly connected to the pipe wall of the dilution main pipe respectively, and the other end of the plurality of branch pipes is connected to the other side wall of the dilution tank.
[0010] Optionally, one side wall of the dilution tank is an arc-shaped plate, the curvature center of the arc-shaped plate is located in the dilution tank, and the other end of the branch pipe is connected to the lower end of the other side wall of the dilution tank.
[0011] Optionally, the upper end of the guide plate is fixedly connected to the inner wall of the vertical chute, and the guide plate is located directly above the interval.
[0012] Optionally, it also includes a diluent flow transmitter and a control valve, both of which are installed on the diluent pipe.
[0013] Optionally, it also includes a support frame, the two ends of which are fixedly connected to the opposite sidewalls of the vertical chute, and the dilution tank is fixedly connected to the upper end face of the support frame.
[0014] Optionally, it may also include a funnel connected to the upper end of the vertical chute.
[0015] By employing the above technical solution, this utility model has at least the following advantages:
[0016] High-concentration pulp is poured into a vertical chute and flows into a dilution tank along a guide plate. At the same time, water is sprayed into the dilution tank from a dilution liquid pipe, creating turbulence within the tank to complete the initial dilution of the pulp. The initially diluted pulp then flows over the top of one side wall of the dilution tank, passes through a gap, and settles into a pulp pool at the bottom of the vertical chute. The initially diluted pulp then collides with the surface of the pulp pool, further diluting the pulp. The diluted pulp is then output through a pulp pump to avoid pump blockage and unstable flow.
[0017] This device eliminates the need for a stirring mechanism, has a simple structure, requires no equipment maintenance, and is relatively inexpensive, enabling rapid and uniform dilution of high-concentration pulp. Attached Figure Description
[0018] Figure 1 A schematic diagram of a high-consistency pulp rapid dilution device provided in an embodiment of this utility model;
[0019] Figure 2 A schematic diagram of another high-consistency pulp rapid dilution device provided in this embodiment of the present invention;
[0020] Figure 3 for Figure 1 View from point AA.
[0021] The reference numerals in the accompanying drawings include: vertical chute 1, guide plate 2, dilution tank 3, interval 4, dilution liquid pipe 5, slurry pool 6, dilution main pipe 501, branch pipe 502, arc plate 7, dilution liquid flow transmitter 8, control valve 9, support frame 10, funnel 11, and slurry pump 12. Detailed Implementation
[0022] To further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the following will combine with the drawings and preferred embodiments to specifically explain the specific implementation manners, structures, features and effects according to the utility model application, which are as follows. In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.
[0023] The utility model will be further explained in detail in combination with the drawings and embodiments.
[0024] As Figure 1 Or Figure 2 An embodiment of the utility model provides a high concentration paper pulp rapid dilution device, it includes: vertical chute 1 and mixing mechanism,
[0025] The mixing mechanism includes guide vane 2 and dilution tank 3, the guide vane 2 and the dilution tank 3 are sequentially arranged in the vertical chute 1 from top to bottom, there is a gap 4 between the side wall of the dilution tank 3 and the inner side wall of the vertical chute 1, the other side wall of the dilution tank 3 is connected to dilution liquid pipe 5, the guide vane 2 is inclined downward, for guiding the concentrated paper pulp to the dilution tank 3, the area of the vertical chute 1 below the dilution tank 3 is pulp pool 6.
[0026] The working process of a high concentration paper pulp rapid dilution device is as follows:
[0027] The high concentration paper pulp is poured into the vertical chute 1, enters the dilution tank 3 along the guide vane 2, at the same time, water is sprayed into the dilution tank 3 from the dilution liquid pipe 5, forms turbulent flow in the dilution tank 3, scatters the high concentration paper pulp, thereby completing the preliminary dilution of the paper pulp liquid, the preliminary diluted pulp liquid overturns the upper end of the side wall of the dilution tank 3, passes through the gap 4, and settles to the pulp pool 6 in the lower part of the vertical chute 1, the preliminary diluted pulp liquid collides with the liquid surface of the pulp pool 6, further dilutes the pulp liquid, and the diluted pulp liquid is output through the pulp pump 12, avoiding the blockage and unstable flow of the pulp pump 12.
[0028] Using the device, the stirring mechanism does not need to be set, the structure is simple, the equipment maintenance is not needed, the cost is lower, and the high concentration paper pulp can be rapidly and uniformly diluted.
[0029] Specifically, the pulp pool 6 is connected to the inlet of the pulp pump 12, the outlet of the pulp pump 12 is connected to the next process equipment, through the pulp dilution process of the device, the phenomenon of pump shell blockage or unstable flow of the pulp pump 12 is completely eliminated.
[0030] Using the device, the high concentration paper pulp can be rapidly and fully diluted and dissolved, the purpose of adapting to the pulp pump 12 conveying is achieved, and the device is simple and reliable, low in cost and energy-saving and consumption-reducing.
[0031] Specifically, the high-concentration pulp flows downward along the guide plate 2, the radial cross-sectional area of the vertical chute 1 at the lower end of the guide plate 2 is narrowed, so that the high-concentration pulp is concentrated into the dilution tank 3, and the high-concentration pulp is impacted by the water flow to form a turbulent flow in the dilution tank 3, and the pulp is preliminarily diluted, and then the preliminarily diluted pulp overflows from the dilution tank 3.
[0032] Specifically, the concentration of the high-concentration pulp entering the vertical chute 1 is not greater than 40%, so as to avoid the situation that the concentration of the pulp is still too high after dilution, and the pump casing of the pulp pump 12 is still blocked.
[0033] As shown in Figure 1 or Figure 2 In the specific embodiment, the included angle between the guide plate 2 and the inner wall of the vertical chute 1 is less than 45°.
[0034] In the embodiment, specifically, the included angle is less than 45°, so as to avoid that the guide plate 2 greatly hinders the high-concentration pulp falling downward in the vertical chute 1, and the potential energy of the high-concentration pulp is well converted into kinetic energy. In the dilution tank 3, the high-concentration pulp and the water maintain a high kinetic energy when colliding and mixing with each other, so that the pulp components can be better broken when the pulp and the water collide, and the pulp is diluted in the turbulent water.
[0035] As shown in Figure 1 or Figure 2 or Figure 3 In the specific embodiment, the dilution pipe 5 includes a dilution main pipe 501 and a plurality of branch pipes 502, the dilution main pipe 501 extends along the width direction of the dilution tank 3, one end of each of the plurality of branch pipes 502 is fixedly connected to the pipe wall of the dilution main pipe 501, and the other end of each of the plurality of branch pipes 502 is connected to the other side wall of the dilution tank 3.
[0036] In the embodiment, specifically, the dilution main pipe 501 extends along the width direction of the dilution tank 3, and the other ends of the plurality of branch pipes 502 are arranged horizontally in sequence on the other side wall of the dilution tank 3, so that the flushing water horizontally impacts into the dilution tank 3 from the entire plane of the other side wall of the dilution tank 3.
[0037] As shown in Figure 2 In the specific embodiment, one side wall of the dilution tank 3 is an arc-shaped plate 7, the center of curvature of the arc-shaped plate 7 is located in the dilution tank 3, and the other end of the branch pipe 502 is connected to the lower end of the other side wall of the dilution tank 3.
[0038] In the embodiment, specifically, when the washing water in the branch pipe 502 impacts the arc-shaped plate 7 from the lower end of the other side wall of the dilution tank 3, the washing water reaching the lower end of the arc-shaped plate 7 flows upwards along the inner side of the arc-shaped plate 7 in an arc shape, so that the water at the liquid surface of the dilution tank 3 has a flow tendency away from the arc-shaped plate 7, thereby driving the high-concentration pulp just contacting the liquid surface of the dilution tank 3 to move horizontally in a direction away from the arc-shaped plate 7;
[0039] In summary, by arranging the arc-shaped plate 7, the high-concentration pulp just falling to the liquid surface of the dilution tank 3 is prevented from overflowing out of the dilution tank 3, so that the high-concentration pulp stays in the dilution tank 3 for a relatively long time, and the preliminary dilution is relatively sufficient.
[0040] As shown in Figure 1 or Figure 2 In the embodiment, the upper end of the flow guide plate 2 is fixedly connected to the inner side wall of the vertical chute 1, and the flow guide plate 2 is located directly above the interval 4.
[0041] In the embodiment, specifically, the upper end of the flow guide plate 2 is fixedly welded to the inner side wall of the vertical chute 1, and the lower end of the flow guide plate 2 is located directly above the dilution tank 3, so that the flow guide plate 2 completely covers the interval 4, thereby enabling the falling high-concentration pulp to enter the dilution tank 3 along the flow guide plate 2, and preventing the high-concentration pulp from falling into the pulp liquid pool 6 through the interval 4 without preliminary dilution by the washing water in the dilution tank 3.
[0042] As shown in Figure 3 In the embodiment, the dilution liquid flow transmitter 8 and the control valve 9 are further included, and the dilution liquid flow transmitter 8 and the control valve 9 are both installed on the dilution liquid pipe 5.
[0043] In the embodiment, specifically, the dilution liquid flow transmitter 8 is connected to the input end of the controller, the output end of the controller is connected to the control valve 9, and the controller stores the level value of the washing water flow of the dilution liquid pipe 5 corresponding to the high-concentration pulp flow (the high-concentration pulp flow and the washing water flow are matched to form the dilution pulp liquid of a preset concentration in the pulp liquid pool 6), and when the washing water flow monitored by the dilution liquid flow transmitter 8 is less than the corresponding level value, the controller adjusts the opening degree of the control valve 9.
[0044] Specifically, the high-concentration pulp flow is based on the flow value at the outlet of the upper-stage pulp concentration device.
[0045] As shown in Figure 1 , Figure 2 or Figure 3 In the embodiment, the support frame 10 is further included, two ends of the support frame 10 are fixedly connected to the opposite side walls of the vertical chute 1, and the dilution tank 3 is fixedly connected to the upper end surface of the support frame 10.
[0046] In the embodiment, specifically, the two ends of the support frame 10 are fixedly welded to the opposite side walls of the vertical chute, providing support force for the dilution tank 3 on the vertical chute 1, and ensuring the stability of the dilution tank 3 in the vertical chute 1.
[0047] As shown in Figure 1 or Figure 2 In the embodiment, the funnel 11 is connected to the upper end of the vertical chute 1.
[0048] In the embodiment, specifically, the upper end of the funnel 11 has a larger diameter, and when high-concentration pulp is added to the upper end of the vertical chute 1 through the funnel 11, the high-concentration pulp is prevented from scattering to the periphery of the vertical chute 1.
[0049] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A high consistency pulp rapid dilution device, characterized by, The high-concentration paper pulp rapid dilution device comprises a vertical chute, a mixing mechanism, and a pulp pool.
2. The high-concentration paper pulp rapid dilution device according to claim 1, wherein an angle between the deflector and the inner side wall of the vertical chute is less than 45°.
3. The high-concentration paper pulp rapid dilution device according to claim 1, wherein the dilution liquid pipe comprises a dilution main pipe and a plurality of branch pipes, the dilution main pipe extends along the width direction of the dilution tank, one end of each of the plurality of branch pipes is fixedly connected to the pipe wall of the dilution main pipe, and the other end of each of the plurality of branch pipes is connected to the other side wall of the dilution tank.
4. The high-concentration paper pulp rapid dilution device according to claim 3, wherein the one side wall of the dilution tank is an arc-shaped plate, the center of curvature of the arc-shaped plate is located in the dilution tank, and the other end of each of the plurality of branch pipes is connected to the lower end of the other side wall of the dilution tank.
5. The high-concentration paper pulp rapid dilution device according to any one of claims 1 to 4, wherein the upper end of the deflector is fixedly connected to the inner side wall of the vertical chute, and the deflector is located directly above the gap.
6. The high-concentration paper pulp rapid dilution device according to any one of claims 1 to 4, further comprising a dilution liquid flow transmitter and a control valve, and the dilution liquid flow transmitter and the control valve are both installed on the dilution liquid pipe.
7. The high-concentration paper pulp rapid dilution device according to any one of claims 1 to 4, further comprising a support frame, two ends of the support frame are fixedly connected to the opposite side walls of the vertical chute, and the dilution tank is fixedly connected to the upper end face of the support frame.
8. The high-concentration paper pulp rapid dilution device according to any one of claims 1 to 4, further comprising a funnel, and the funnel is connected to the upper end of the vertical chute.