CN210481048U - Water recycling system for pulp molding production - Google Patents
Water recycling system for pulp molding production Download PDFInfo
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- CN210481048U CN210481048U CN201920814488.XU CN201920814488U CN210481048U CN 210481048 U CN210481048 U CN 210481048U CN 201920814488 U CN201920814488 U CN 201920814488U CN 210481048 U CN210481048 U CN 210481048U
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Abstract
The utility model discloses a paper pulp molding production water cyclic utilization system, concretely relates to paper pulp molding production field, including the sewage sedimentation tank, sewage sedimentation tank one side is equipped with the sewage exit tube and the opposite side is equipped with sewage and advances the pipe, the sewage sedimentation tank connects gradually sewage equalizing basin, sewage elevator pump and air supporting pond through the sewage exit tube, sewage exit tube one side of being connected between sewage elevator pump and the air supporting pond still is connected with the flocculating agent and adds the jar, be equipped with dross export, clear water export and sludge outlet on the air supporting pond, dross export output connects gradually sewage concentration tank, horizontal centrifuge and plate and frame filter press through the pipeline. The utility model discloses utilize physical precipitation, flocculation and subside, fibre recovery, clear water recovery and mud recovery five processing steps altogether, with fibre, clear water and the mud recycle respectively in the sewage, green, economical and practical to the treatment effect is thorough, and the energy consumption is low, goes out water stable in quality of water, safe and reliable, easy operation.
Description
Technical Field
The utility model relates to a pulp molding technical field, more specifically say, the utility model relates to a water cyclic utilization system is moulded to paper pulp.
Background
The paper pulp moulding is a new technology of stereo paper making, it uses cane pulp and bamboo pulp as raw material, and moulds them on mould to make paper product with a certain form, and adopts the processes of pulp dispersing, adsorption forming and drying and forming so as to implement the invented paper making process. The paper product is produced by water consumers, and the special product has high requirement on water quality. The original treatment process can not meet the recycling requirement, and the process wastewater can not be recycled, which is a great waste to water resources, but the sewage treatment process of the invention is different from the traditional process, the pulp molding industry has no pulping black water of the traditional paper making industry, and only the wastewater in the suction filtration process has main pollutants of plant fibers;
patent application publication No. CN 204661491U discloses a paper pulp sewage treatment system, which comprises a sewage tank, a sedimentation tank, a biochemical tank, an acidification tank, an aeration tank and a clean water tank, and waste paper residues are collected, the utility model makes full use of micro-particle substances in paper pulp wastewater as fuel, thereby generating economic benefit, reducing the treatment capacity of paper pulp wastewater, having high working efficiency, low treatment cost and convenient use;
however, when the sewage treatment system provided by the technical scheme is actually used, the sewage treatment system still has many defects, such as incomplete sludge treatment, incapability of recycling waste water and possibility of sludge existing in collected waste paper residues.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a paper pulp molding production water cyclic utilization system through utilizing physics to deposit, flocculating settling, fibre recovery, clear water recovery and mud recovery five processing steps altogether, with fibre, clear water and the mud recycle respectively in the sewage, green, economical and practical to the treatment effect is thorough, and the energy consumption is low, goes out water stable in quality, safe and reliable, easy operation.
In order to achieve the above object, the utility model provides a following technical scheme: a water recycling system for pulp molding production comprises a sewage sedimentation tank, wherein one side of the sewage sedimentation tank is provided with a sewage outlet pipe, the other side of the sewage sedimentation tank is provided with a sewage inlet pipe, the sewage sedimentation tank is sequentially connected with a sewage adjusting tank, a sewage lifting pump and an air floatation tank through the sewage outlet pipe, one side of the sewage outlet pipe connected between the sewage lifting pump and the air floatation tank is also connected with a flocculant adding tank, the air floatation tank is provided with a scum outlet, a clear water outlet and a sludge outlet, the scum outlet output end is sequentially connected with a sewage concentration tank, a horizontal centrifuge and a plate-and-frame filter press through pipelines, the clear water outlet output end is sequentially connected with an intermediate water tank, a quartz sand filter, a clear water tank and a white water tank through pipelines, the sludge outlet output end is sequentially connected with a trench sewage tank and a centrifuge through, the sewage outlet is connected with a sewage inlet pipe of the sewage sedimentation tank through a pipeline, and the slurry outlet is connected with a mud press through a pipeline.
In a preferred embodiment, the flocculant adding tank comprises a PAC tank and a PAM tank, the PAC tank and the PAM tank are both connected with a sewage outlet pipe through a feeding pipe, and a flow control valve is arranged on the feeding pipe.
In a preferred embodiment, a first pressure pump is arranged on a sewage outlet pipe connected with the sewage regulating tank.
In a preferred embodiment, the connecting pipeline of the scum outlet, the clear water outlet and the sludge outlet is provided with a second pressure pump.
In a preferred embodiment, an eighth pressure pump is arranged on a connecting pipeline between the sewage concentration tank, the horizontal centrifuge and the plate-and-frame filter press, a sewage discharge port and a scum discharge port are arranged on the horizontal centrifuge, the sewage discharge port is connected with a trench sewage tank through a pipeline and a seventh pressure pump, a third pressure pump is arranged on a connecting pipeline between the trench sewage tank and the centrifuge, a fourth pressure pump is arranged on a connecting pipeline between the sludge sewage outlet and the sewage sedimentation tank, and a fifth pressure pump is arranged on a connecting pipeline between the sludge outlet and the sludge press.
In a preferred embodiment, a sixth pressure pump is arranged on the connecting pipeline among the intermediate water tank, the quartz sand filter, the clean water tank and the white water tank.
In a preferred embodiment, an upper layer of filter screen and a lower layer of filter screen are arranged in the clean water tank, the filter screen at the top is 40 meshes, and the filter screen at the bottom is 60 meshes.
The utility model discloses a technological effect and advantage:
1. the utility model utilizes five processing steps of physical precipitation, flocculation sedimentation, fiber recovery, clear water recovery and sludge recovery to respectively recycle the fibers, clear water and sludge in the sewage, thereby being green, environment-friendly, economical and practical, thorough in treatment effect, low in energy consumption, stable in effluent quality, safe and reliable, and simple in operation;
2. through handling the mud that the sewage sedimentation tank carried with centrifuge and the sewage that produces carry to the sewage equalizing basin retreatment in to and will arrange to carry to the sewage that produces to the interior processing back of centrifuge in the mud in trench sewage pond and carry to the sewage equalizing basin retreatment in, among the whole sewage treatment system, there is not waste water direct discharge, sewage treatment is complete, avoids influencing the environment.
Drawings
Fig. 1 is a schematic diagram of the overall system structure of the present invention.
Fig. 2 is a schematic view of the structure of the clean water tank of the present invention.
The reference signs are: 1 sewage sedimentation tank, 2 sewage outlet pipes, 3 sewage inlet pipes, 4 sewage adjusting tanks, 5 sewage lifting pumps, 6 air floatation tanks, 7 flocculant adding tanks, 8 sewage concentration tanks, 9 horizontal centrifuges, 10 plate-and-frame filter presses, 11 intermediate water tanks, 12 quartz sand filters, 13 clean water tanks, 14 white water tanks, 15 trench sewage tanks, 16 centrifuges, 17 mud presses, 18 first pressure pumps, 19 second pressure pumps, 20 third pressure pumps, 21 fourth pressure pumps, 22 fifth pressure pumps, 23 sixth pressure pumps, 24 filter screens, 25 seventh pressure pumps and 26 eighth pressure pumps.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a paper pulp molding production water recycling system as shown in figure 1-2, which comprises a sewage sedimentation tank 1, wherein one side of the sewage sedimentation tank 1 is provided with a sewage outlet pipe 2 and the other side is provided with a sewage inlet pipe 3, the sewage sedimentation tank 1 is sequentially connected with a sewage adjusting tank 4, a sewage lifting pump 5 and an air flotation tank 6 through the sewage outlet pipe 2, one side of the sewage outlet pipe 2 connected between the sewage lifting pump 5 and the air flotation tank 6 is also connected with a flocculating agent adding tank 7, the air flotation tank 6 is provided with a scum outlet, a clear water outlet and a sludge outlet, the scum outlet output end is sequentially connected with a sewage concentration tank 8, a centrifuge 9 and a plate frame filter press 10 through pipelines, the clear water outlet output end is sequentially connected with a middle water tank 11, a quartz sand filter 12, a clear water tank 13 and a white water tank 14 through pipelines, the sludge outlet output end is sequentially connected with a trench 15 and a centrifuge 16, the centrifugal machine 16 is provided with a sewage outlet and a slurry outlet, the sewage outlet is connected with the sewage inlet pipe 3 of the sewage sedimentation tank 1 through a pipeline, and the slurry outlet is connected with the mud press 17 through a pipeline.
Further, the flocculating agent adding tank 7 comprises a PAC tank and a PAM tank, the PAC tank and the PAM tank are both connected with the sewage outlet pipe 2 through a feeding pipe, and a flow control valve is arranged on the feeding pipe and used for controlling the consumption of PAC (polyaluminium chloride) and PAM (nonionic polymeric flocculating agent).
Further, a first pressure pump 18 is arranged on the sewage outlet pipe 2 connected with the sewage inlet pipe 3 and the sewage regulating tank 4.
Furthermore, a second pressure pump 19 is arranged on the connecting pipeline of the scum outlet, the clear water outlet and the sludge outlet.
Further, an eighth pressure pump 26 is arranged on a connecting pipeline between the sewage concentration tank 8, the horizontal centrifuge 9 and the plate-and-frame filter press 10, a sewage discharge port and a scum discharge port are arranged on the horizontal centrifuge 9, the sewage discharge port is connected with the trench sewage tank 15 through a pipeline and a seventh pressure pump 25, a third pressure pump 20 is arranged on a connecting pipeline between the trench sewage tank 15 and the centrifuge 16, a fourth pressure pump 21 is arranged on a connecting pipeline between the sludge sewage outlet and the sewage sedimentation tank 1, and a fifth pressure pump 22 is arranged on a connecting pipeline between the slurry outlet and the sludge press 17.
Furthermore, the connecting pipes among the intermediate water tank 11, the quartz sand filter 12, the clean water tank 13 and the white water tank 14 are all provided with a sixth pressure pump 23.
Furthermore, an upper layer of filter screen 24 and a lower layer of filter screen 24 are arranged in the clean water tank 13, the filter screen 24 at the top is 40 meshes, and the filter screen 24 at the bottom is 60 meshes.
Furthermore, the whole pulp molding process water recycling system is connected with an external PLC controller, and the intelligent operation of the whole system is controlled through the PLC controller in a programming mode.
The utility model discloses the theory of operation:
referring to the attached drawings 1-2 of the specification, when the whole pulp molding production water recycling system is used, the method comprises the following operation steps:
firstly, physical precipitation, namely arranging a sewage precipitation tank 1 at the tail end of a drainage pipe of a paper mill, performing primary coarse filtration and precipitation on discharged sewage, then overflowing the discharged sewage into a sewage adjusting tank 4, performing primary sedimentation, separation and water quality and water quantity adjustment, conveying sludge deposited at the bottom into a centrifugal machine 16, centrifuging the sludge by the centrifugal machine 16 to obtain sewage and sludge, simultaneously conveying the discharged sewage into the sewage adjusting tank 4, pressing the obtained sludge into mud cakes by a mud press 17, and transporting the mud cakes outwards for other purposes or landfill;
step two, flocculating settling, wherein after the sewage overflowing into the sewage adjusting tank 4 in the step one is adjusted, the water is sent into an air floatation tank 6 by a sewage lifting pump 5, a large number of micro bubbles are used for catching and adsorbing fine particle adhesive substances in the sewage to enable the fine particle adhesive substances to float upwards, the effect of solid-liquid separation is achieved, PAC (polyaluminium chloride) and PAM (nonionic polymeric flocculant) are sequentially added for flocculating settling to obtain scum, clear water and sludge, the scum is discharged into a sewage concentration tank 8, the clear water is discharged into an intermediate water tank 11, and the sludge is discharged into a trench sewage tank 15;
step three, recovering fibers, namely conveying the scum discharged into the sewage concentration tank 8 in the step two into a horizontal centrifuge 9, conveying the centrifuged sewage into a trench sewage tank 15, and dehydrating the centrifuged scum through a plate-and-frame filter press 10 to recover fibers;
step four, clear water recovery, wherein the clear water discharged to the middle water tank 11 in the step two is discharged into a quartz sand filter 12 for sand filtration, is filtered by two filter screens 24 after sand filtration and is injected into a clear water tank 13, is pumped into a white water tank 14 by a reuse water pump for collection and is reused in the pulp molding production process;
and step five, sludge recovery, wherein the sludge discharged into the trench sewage tank 15 in the step two is conveyed into a centrifugal machine 16, the sludge is centrifuged by the centrifugal machine 16, the discharged sewage is simultaneously conveyed into a sewage adjusting tank 4 for sewage treatment again, and the obtained sludge is pressed into a mud cake by a mud press 17 and is used for other purposes after being transported outside.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A paper pulp molding production water recycling system comprises a sewage sedimentation tank (1), and is characterized in that: the sewage treatment device is characterized in that a sewage outlet pipe (2) is arranged on one side of the sewage sedimentation tank (1) and a sewage inlet pipe (3) is arranged on the other side of the sewage sedimentation tank (1), the sewage settling tank (1) is sequentially connected with a sewage adjusting tank (4), a sewage lifting pump (5) and an air floatation tank (6) through the sewage outlet pipe (2), one side of the sewage outlet pipe (2) connected between the sewage lifting pump (5) and the air floatation tank (6) is also connected with a flocculant adding tank (7), the air floatation tank (6) is provided with a scum outlet, a clear water outlet and a sludge outlet, the scum outlet is sequentially connected with a sewage concentration tank (8), a horizontal centrifuge (9) and a plate and frame filter press (10) through pipelines, the clear water outlet is sequentially connected with an intermediate water tank (11), a quartz sand filter (12), a clear water tank (13) and a white water tank (14), the sludge outlet is sequentially connected with a trench, the centrifugal machine (16) is provided with a sewage outlet and a slurry outlet, the sewage outlet is connected with a sewage inlet pipe (3) of the sewage sedimentation tank (1) through a pipeline, and the slurry outlet is connected with a mud press (17) through a pipeline.
2. The system of claim 1, wherein the system comprises: the flocculant adding tank (7) comprises a PAC tank and a PAM tank, wherein the PAC tank and the PAM tank are both connected with a sewage outlet pipe (2) through a feeding pipe, and a flow control valve is arranged on the feeding pipe.
3. The system of claim 1, wherein the system comprises: and a first pressure pump (18) is arranged on the sewage outlet pipe (2) connected with the sewage inlet pipe (3) and the sewage regulating tank (4).
4. The system of claim 1, wherein the system comprises: and a second pressure pump (19) is arranged on the connecting pipeline of the scum outlet, the clear water outlet and the sludge outlet.
5. The system of claim 1, wherein the system comprises: be equipped with eighth force pump (26) on the connecting tube between sewage concentration tank (8), horizontal centrifuge (9) and plate and frame filter press (10), be equipped with sewage discharge port and dross discharge port on horizontal centrifuge (9), the sewage discharge port passes through pipeline and seventh force pump (25) and is connected with trench effluent water sump (15), be equipped with third force pump (20) on the connecting tube between trench effluent water sump (15) and centrifuge (16), be equipped with fourth force pump (21) on the connecting tube of mud sewage export and sewage sedimentation tank (1), be equipped with fifth force pump (22) on the connecting tube of mud export and mud press (17).
6. The system of claim 1, wherein the system comprises: and the connecting pipelines among the middle water tank (11), the quartz sand filter (12), the clean water tank (13) and the white water tank (14) are all provided with a sixth pressure pump (23).
7. The system of claim 1, wherein the system comprises: an upper layer of filter screen and a lower layer of filter screen (24) are arranged in the clean water tank (13), the filter screen (24) at the top is 40 meshes, and the filter screen (24) at the bottom is 60 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814488.XU CN210481048U (en) | 2019-05-31 | 2019-05-31 | Water recycling system for pulp molding production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814488.XU CN210481048U (en) | 2019-05-31 | 2019-05-31 | Water recycling system for pulp molding production |
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| CN210481048U true CN210481048U (en) | 2020-05-08 |
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| CN201920814488.XU Active CN210481048U (en) | 2019-05-31 | 2019-05-31 | Water recycling system for pulp molding production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204091A (en) * | 2019-05-31 | 2019-09-06 | 永发（江苏）模塑包装科技有限公司 | A kind of method that paper mould industrial water recycles |
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2019
- 2019-05-31 CN CN201920814488.XU patent/CN210481048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204091A (en) * | 2019-05-31 | 2019-09-06 | 永发（江苏）模塑包装科技有限公司 | A kind of method that paper mould industrial water recycles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201228 Address after: 456400 Pearl River Road and Civilization Road Intersection, New Area, Youxian County, Anyang City, Henan Province Patentee after: YONGFA (HENAN) MOULDING TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 225500 Qiao Dong village, Da Lun Town, Jiangyan District, Taizhou, Jiangsu Patentee before: YONGFA (JIANGSU) MOLDING PACKAGING TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |