CN218643066U - Bamboo pulp screening plain boiled water processing system - Google Patents
Bamboo pulp screening plain boiled water processing system Download PDFInfo
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- CN218643066U CN218643066U CN202221090403.6U CN202221090403U CN218643066U CN 218643066 U CN218643066 U CN 218643066U CN 202221090403 U CN202221090403 U CN 202221090403U CN 218643066 U CN218643066 U CN 218643066U
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Abstract
The embodiment of the utility model provides a bamboo thick liquid screening plain boiled water processing system, including the bamboo thick liquid screening plain boiled water pond of pipe connection in proper order, flocculating agent storage device, mixing pump, flocculation tank, overflow launder, shale shaker and enrichment facility, simultaneously, the mixing pump passes through the impeller and mixes tiny component and flocculating agent, and the flocculation tank is used for making tiny component form the wadding group, and the overflow launder encloses to be established at the flocculation tank periphery, includes an overflow district and the collecting area separated by the overflow board, and wherein, the overflow board is vertical state and sets up in the overflow launder, and the collecting area still includes the outlet, and the wadding group is discharged through the outlet; the vibrating screen is used for separating floccules and clear liquid, comprises a screen frame and a screen arranged in the screen frame, the screen comprises a screen surface, the screen surface and a horizontal plane included angle are 0-90 degrees, the screen frame is connected with a vibrator, a thickening device is configured to dewater the floccules to form fine component aggregates, cushion slurry required by a multi-disc recovery technology in the prior art is avoided, the recovery rate is high, the quality of recycled water is high, and the whole system is simple and efficient.
Description
Technical Field
The utility model relates to a papermaking technical field, in particular to processing system of bamboo pulp screening plain boiled water.
Background
In the production and preparation process of the bamboo fluff pulp, a screening process is adopted to remove more impure cells and other fine components in the bamboo pulp, a large amount of white water with fine components is generated in the production process, the dry weight of the white water reaches about 20% of the dry weight of the pulp before screening, if the fine components and the water in the pulp are not recovered, the actual production cost of the bamboo fluff pulp can be greatly increased, and a large amount of water resources can be consumed.
In addition, a multi-disc recovery technology is conventionally adopted in the paper making industry, white water to be recovered is filtered by cushion pulp attached to the surfaces of a plurality of discs, so that the purpose of recovering fibers, fine components and fillers in the white water is achieved, more than 80% of recycling is realized by the multi-disc recovery technology, water resources are greatly saved, and waste of pulp is reduced.
Disclosure of Invention
The bamboo pulp screening white water treatment system comprises a bamboo pulp screening white water pool, a flocculating agent storage device, a mixing pump, a flocculating tank, an overflow trough, a vibrating screen and a thickening device which are sequentially connected through pipelines, wherein:
the bamboo pulp screening white water tank is used for receiving white water treated by the bamboo pulp screening equipment, and the white water comprises fine components;
and the flocculant storage device is used for storing a flocculant or a coagulant.
The mixing pump is arranged at the downstream of the bamboo pulp screening white water tank and the flocculating agent storage device, and is connected with the bamboo pulp screening white water tank and the flocculating agent storage device through a pipeline;
the flocculation tank comprises a main body, an inlet and an outlet, wherein the inlet and the outlet are arranged on the main body, the inlet is arranged below the main body, and the outlet is arranged above the main body and is used for enabling fine components to form floccules;
the overflow groove is arranged around the flocculation groove and comprises an overflow area and a liquid collecting area which are separated by an overflow plate, wherein the overflow plate is arranged in the overflow groove in a vertical state, the liquid collecting area also comprises a water outlet, and the flocs are discharged through the water outlet;
the vibrating screen is used for separating floccules and clear liquid and comprises a screen frame and a screen arranged in the screen frame, wherein the screen comprises a screen surface, and the screen frame is connected with a vibrator, wherein the included angle between the screen surface and the horizontal plane is 0-90 degrees;
a thickening apparatus configured to dewater the flocs to form aggregates of fine components.
Furthermore, the main body is in a conical cylinder shape and is in a form of a big top and a small bottom.
Furthermore, the overflow chute comprises a side plate, the side plate is surrounded to form an accommodating space, the top end of the side plate is at a first height in the vertical direction, the top end of the overflow plate is at a second height in the vertical direction, the first height is greater than the second height, and the top end is at the vertex position of the side plate or the overflow plate in the vertical direction.
Further, the flocculation trough comprises a shell plate adjacent to the overflow area, and the height of the top end of the shell plate in the vertical direction is a third height, so that the second height is smaller than the third height.
Furthermore, the flocculation tank and the overflow tank are of an integrated structure.
Furthermore, the vibrating screen and the thickening device also comprise a storage tank and a slurry pump.
Furthermore, the vibrating screen is an overflow type feeding hole, the inclination angle of the screen surface of the screen and the horizontal plane is 5-80 degrees, and meanwhile, the mesh number of the screen is 60-120 meshes.
Furthermore, the downstream of the thickening device also comprises a clear liquid collecting tank, and the clear liquid collecting tank is connected with the thickening device and the vibrating screen through pipelines and is used for collecting clear liquid treated by the thickening device and the vibrating screen.
Further, the thickening device is a horizontal screw centrifuge or a plate-and-frame filter press.
Has the beneficial effects that: the embodiment of the utility model provides a bamboo thick liquid screening plain boiled water processing system, including bamboo thick liquid screening plain boiled water pond, flocculating agent storage device, mixing pump, flocculation groove, overflow launder, shale shaker and the thickening device of pipe connection in proper order, simultaneously, the mixing pump passes through the impeller and mixes tiny component and flocculating agent, and the flocculation groove is used for making tiny component form the wadding group, and the overflow launder encloses to be established at the flocculation groove periphery, includes an overflow district and the collecting area of being separated by the overflow board, wherein, the overflow board be vertical state setting in the overflow launder, the collecting area still includes the outlet, the wadding group discharge through the outlet; the vibrating screen is used for separating floccules and clear liquid, comprises a screen frame and a screen arranged in the screen frame, the screen comprises a screen surface, the screen surface and a horizontal plane have an included angle of 0-90 degrees, the screen frame is connected with a vibrator, and a thickening device is configured to dewater the floccules to form fine component aggregates, so that cushion slurry required by a multi-disc recovery technology in the prior art is avoided, and meanwhile, the recovery rate is high, and the quality of reuse water is high.
Drawings
Fig. 1 is a schematic view of a bamboo pulp screening white water treatment system provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of a flocculation tank and an overflow tank;
description of the illustrated elements:
screening the white water tank 11 by the bamboo pulp; a flocculant storage device 111; a mixing pump 12; a flocculation tank 13; a shell plate 130; an inlet 131; an overflow tank 14; an overflow area 141; an overflow plate 142; a liquid collection region 143; side plates 144; a drain opening 145; a vibrating screen 15; a storage tank 16; a slurry pump 17; a thickening apparatus 18; a clear liquid collecting tank 19; the fine component aggregate 20.
Detailed Description
Referring to fig. 1, an embodiment of the present invention provides a white water treatment system for screening bamboo pulp, which is used for treating the white water to recover fiber raw materials in the white water and recover a clear filtrate for secondary use, and the present application will be further described with reference to these drawings.
The bamboo pulp screening white water treatment system comprises a bamboo pulp screening white water pool 11, a flocculating agent storage device 111, a mixing pump 12, a flocculating tank 13, an overflow tank 14, a vibrating screen 15, a storage tank 16, a pulp pump 17 and a thickening device 18 which are sequentially connected through pipelines.
The bamboo pulp screening white water tank 11 is generally disposed downstream of the bamboo pulp screening device, and is used for receiving the white water processed by the bamboo pulp screening device, and as can be understood, the white water includes fine components, and the fine components may be fine fibers or mixed cells.
The flocculant storage device 111 is used for storing a flocculant or a coagulant, and the flocculant which can be applied in the application comprises cationic polyacrylamide, cationic starch and aluminum sulfate, and the coagulant comprises a combination of polyaluminum chloride and anionic polyacrylamide or a combination of aluminum chlorohydrate and anionic polyacrylamide.
The mixing pump 12 is arranged at the downstream of the bamboo pulp screening white water pool 11 and the flocculant storage device 111, the mixing pump 12 can be understood as being connected with the bamboo pulp screening white water pool 11 and the flocculant storage device 111 through a pipeline, the mixing pump 12 comprises an impeller and is used for enabling a flocculant or a coagulant to be rapidly mixed with fine components in the white water through the impeller, and under the action of charges, fine components such as impurity cells with negative charges in the white water and the like can be mutually attracted with flocculant molecules with high charge density, so that countless cluster-shaped substances are formed, the white water filtering effect is obviously improved, and the fine components can not be lost.
Referring to fig. 2, fig. 2 shows a flocculation tank 13 and an overflow tank 14, wherein the flocculation tank 13 is used for receiving the mixed liquid of the flocculating agent and the white water pumped by the mixing pump 12, and comprises a main body in a substantially conical cylindrical shape, and an inlet 131 and an outlet arranged on the main body, wherein the inlet 131 is arranged below the main body and is used for enabling the mixed liquid of the flocculating agent and the white water to enter the flocculation tank 13 from below the flocculation tank 13, and the outlet is arranged above the flocculation tank 13, namely, the whole flocculation tank 13 is fed with liquid from below and discharged from above, thereby reducing the damage to the flocs.
Further, the conical cylindrical body is in a form of a small lower part and a large upper part, specifically, the cross-sectional area of the lower part is smaller than that of the upper part, and the purpose is to further reduce turbulent impact and prevent flocks from being damaged.
The overflow trough 14 is disposed downstream of the flocculation tank 13 and is used for further collecting flocs, in this embodiment, the overflow trough 14 is disposed around the flocculation tank 13, the overflow trough 14 includes an accommodating space, the accommodating space is divided by an overflow area 141 and a liquid collecting area 143 by an overflow plate 142, wherein the overflow area 141 is disposed around the flocculation tank 13 and is used for receiving liquid with flocs discharged through the flocculation tank 13, the overflow plate 142 is disposed in the overflow trough 14 in a vertical state, when the liquid in the overflow area 141 reaches the height of the overflow plate 142, the liquid flows into the liquid collecting area 143 from above the overflow plate 142, so that the flocs above the overflow area 141 easily flow into the liquid collecting area 143, and the liquid collecting area 143 further includes a water discharge opening 145 through which the liquid with flocs is conveyed in a downstream direction.
It can be understood that the overflow chute 14 includes a side plate 144, the side plate 144 encloses to form an accommodating space, the height of the top end of the side plate 144 in the vertical direction is a first height, the height of the top end of the overflow plate 142 in the vertical direction is a second height, the first height is greater than the second height so that the liquid can smoothly flow through the overflow plate 142 and cannot flow out from the side plate 144, and the top end is the top position of the side plate 144 or the overflow plate 142 in the vertical direction.
Further, the flocculation tank 13 includes a shell plate 130 adjacent to the overflow area 141, and the height of the top end of the shell plate 130 in the vertical direction is a third height, and then the second height is smaller than the third height, so that the shell plate 130 also forms an overflow effect, that is, the liquid in the flocculation tank 13 overflows into the overflow area 141 first, and then enters into the liquid collection area 143 through the overflow plate 142, forming two overflow effects, thereby further collecting the flocs.
Further, the flocculation tank 13 and the overflow tank 14 are integrated, and the integrated structure means that the flocculation tank 13 and the overflow tank 14 have a common structural member, such as a common shell, so that the floor area is reduced on one hand, and a multiple overflow effect is easily formed on the other hand.
It can be understood that, in the form of overflow, the liquid is not easily broken up by the turbulence during the transportation process, and the flocculated state is maintained, a vibrating screen 15 is disposed downstream of the overflow tank 14 for separating the flocculated liquid from the clear liquid, in this embodiment, the vibrating screen 15 is an overflow feed inlet, the vibrating screen 15 includes a screen frame and a screen disposed in the screen frame, the screen includes a screen surface, the angle between the screen surface and the horizontal plane is 0-90 °, in this embodiment, the screen surface of the screen is obliquely disposed, specifically, the angle between the screen surface and the horizontal plane is 5-80 °, and more preferably 30-65 °, meanwhile, the mesh number of the screen is 60-120 meshes, and the screen frame is connected with a vibrator, so that the screen frame and the screen disposed on the screen frame are kept in a vibrating state during the filtration process, and it can be understood that the vibrator can further adjust the vibration frequency and amplitude to improve the dewatering effect and the blanking effect.
Thickening device 18 be used for forming tiny component aggregate 20 to the further dehydration of wadding group, in this embodiment, thickening device 18 can be for horizontal screw centrifuge or plate and frame filter press, wherein, horizontal screw centrifuge adopt the centrifugal dehydration principle, from the one end feeding, through a high-speed rotatory barrel, the barrel center has the spiral to push away the material, do benefit to speed difference and centrifugal action and further separate the water that contains in the wadding group with tiny component, it does not relate to the mesh, can not take place the mesh jam problem, plate and frame filter press utilize high mesh filter cloth and pressure plate effect to realize the compulsory dehydration of wadding group, separation effect is good, the material dryness fraction is high after the separation, can understand also can separate the clear liquid when thickening device 18 is further dehydrated to the wadding group.
Further, the vibrating screen 15 and the thickening device 18 further include a storage tank 16 and a slurry pump 17.
Further, the fine component aggregate 20 can be conveyed to a paper machine for secondary utilization or the fine component aggregate 20 is used as a pulp molding raw material, and has the advantages of good forming uniformity, quick dewatering and good stiffness after drying.
Meanwhile, a clear liquid collecting tank 19 is further arranged at the downstream of the thickening device 18, the clear liquid collecting tank 19 is connected with the thickening device 18 and the vibrating screen 15 through pipelines and used for collecting clear liquid processed by the thickening device 18 and the vibrating screen 15, and the clear liquid can be returned to a paper machine, a pulp machine or a pulper.
Can see, adopt the utility model provides a technical scheme can avoid using among the prior art bed course thick liquid, through the utility model provides a flocculation tank can form the wadding group fast, adopts the form that the overflow was carried simultaneously, avoids wadding group in the transportation process to be broken up for the rate of recovery is high, the high quality of reuse water simultaneously.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the present specification and directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.
Claims (9)
1. A bamboo pulp screening white water treatment system comprises a bamboo pulp screening white water pool, a flocculating agent storage device, a mixing pump, a flocculating tank, an overflow trough, a vibrating screen and a thickening device which are sequentially connected by pipelines, and is characterized in that,
the bamboo pulp screening white water tank is used for receiving the white water treated by the bamboo pulp screening equipment;
the flocculant storage device is used for storing a flocculant or a coagulant;
the mixing pump is arranged at the downstream of the bamboo pulp screening white water tank and the flocculating agent storage device, and is connected with the bamboo pulp screening white water tank and the flocculating agent storage device through a pipeline, and the mixing pump comprises an impeller;
the flocculation tank comprises a main body, an inlet and an outlet, wherein the inlet and the outlet are arranged on the main body;
the overflow groove is arranged around the flocculation groove and comprises an overflow area and a liquid collecting area which are separated by an overflow plate, wherein the overflow plate is arranged in the overflow groove in a vertical state, and the liquid collecting area also comprises a water outlet;
the vibrating screen comprises a screen frame and a screen arranged in the screen frame, wherein the screen comprises a screen surface, the included angle between the screen surface and the horizontal plane is 0-90 degrees, and the screen frame is connected with a vibrator.
2. The bamboo pulp screening white water processing system as claimed in claim 1, wherein the flocculation tank main body is in a cone shape and has a large top and a small bottom.
3. The bamboo pulp screening white water processing system as claimed in claim 1, wherein the overflow trough includes a side plate, the side plate is enclosed to form a containing space, the top end of the side plate has a first height in the vertical direction, the top end of the overflow plate has a second height in the vertical direction, the first height is greater than the second height, and the top end is the top point position of the side plate or the overflow plate in the vertical direction.
4. The bamboo pulp screening white water treatment system as recited in claim 3, wherein the flocculation tank includes a shell plate adjacent to the overflow area, the top end of the shell plate has a third height in the vertical direction, and the second height is smaller than the third height.
5. The bamboo pulp screening white water processing system as claimed in claim 4, wherein the flocculation tank and the overflow tank are integrated.
6. The bamboo pulp screening white water processing system as recited in claim 1, further comprising a storage tank and a pulp pump in the vibrating screen and thickening device.
7. The bamboo pulp screening white water processing system of claim 1, wherein the vibrating screen is an overflow feed inlet, the inclination angle of the screen surface and the horizontal plane is 5-80 °, and the mesh number of the screen is 60-120.
8. The bamboo pulp screening white water processing system as claimed in claim 1, further comprising a clear liquid collecting tank at the downstream of the thickening device, wherein the clear liquid collecting tank is connected with the thickening device and the vibrating screen through a pipeline and is used for collecting the clear liquid processed by the thickening device and the vibrating screen.
9. The bamboo pulp screening white water processing system of claim 1, wherein the thickening device is a horizontal screw centrifuge or a plate and frame filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221090403.6U CN218643066U (en) | 2022-05-06 | 2022-05-06 | Bamboo pulp screening plain boiled water processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221090403.6U CN218643066U (en) | 2022-05-06 | 2022-05-06 | Bamboo pulp screening plain boiled water processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218643066U true CN218643066U (en) | 2023-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221090403.6U Active CN218643066U (en) | 2022-05-06 | 2022-05-06 | Bamboo pulp screening plain boiled water processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218643066U (en) |
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2022
- 2022-05-06 CN CN202221090403.6U patent/CN218643066U/en active Active
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