CN216129892U - Environment-friendly white water paper pulp recovery device - Google Patents
Environment-friendly white water paper pulp recovery device Download PDFInfo
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- CN216129892U CN216129892U CN202121421810.6U CN202121421810U CN216129892U CN 216129892 U CN216129892 U CN 216129892U CN 202121421810 U CN202121421810 U CN 202121421810U CN 216129892 U CN216129892 U CN 216129892U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 152
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 11
- 238000011084 recovery Methods 0.000 title abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract 2
- 238000005096 rolling process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011268 retreatment Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides an environment-friendly white water pulp recovery device, which comprises: the tower body is a cylinder, the lower part of the tower body is a conical body, the upper part of the tower body is provided with a water outlet, the lower end of the conical body is provided with an outlet, the upper end of the cylinder body is provided with a sealing cover, and the sealing cover is provided with a mounting hole; the rolling flow cylinder is a cylinder body and is vertically arranged in the tower body, the upper part of the cylinder body hermetically extends out of the mounting hole, an upper port sealing plate of the rolling flow cylinder is closed, a white water inlet is formed in the sealing plate and is connected with a white water inlet pipe and a water return port, a water return pipe is connected between the water return port and a water outlet, and a pump device is arranged on the water return pipe; a water storage area is formed between the inner wall surface of the tower body and the outer wall surface of the tumble, a water outlet on the tower body is positioned at the upper part of the water storage area, and the lower part of the tumble is an outward-expanded conical section; and the baffle is an annular plate, is arranged on the inner peripheral wall of the tower body, is positioned below the tumble cylinder, has a gap with the lower port of the tumble cylinder, vertically corresponds to the annular lower port of the water storage area, and the caliber of the inner opening of the baffle is smaller than that of the lower port of the tumble cylinder. The device can efficiently recover paper pulp and is beneficial to environmental protection.
Description
Technical Field
The utility model belongs to the technical field of papermaking white water treatment, and particularly relates to an environment-friendly white water pulp recycling device.
Background
White water is generated in the papermaking process, and two common methods for treating the white water are adopted, wherein one method is that the white water is directly discharged to a municipal pipeline, and paper pulp contained in the white water is completely lost, so that the loss rate of the paper pulp reaches about 0.05 percent, and meanwhile, the environmental pollution is also caused; another treatment method is to use polyacrylamide to press into slurry with the content of more than 10 percent and then to utilize the slurry, and the treatment method has the defects that additives are needed in the treatment process, the cost is generated, and in addition, the pulp is lost in the treatment process of the method.
The utility model has the following contents:
the utility model aims to improve the problems in the prior art and provide an environment-friendly white water pulp recovery device, so that pulp in white water can be recovered more efficiently and the environment can be protected.
The purpose of the utility model is realized as follows:
an environment-friendly white water pulp recovery device comprises a tower body, a tumbling cylinder and a baffle,
the tower body is a cylinder, the lower part of the cylinder is a cone, the upper part of the cylinder is provided with a water outlet, the lower end of the cone is provided with an outlet, the upper end of the cylinder is provided with a seal cover, and the seal cover is provided with a mounting hole;
the tumble is a cylinder vertically arranged in the tower body, the upper part of the cylinder hermetically extends out of the mounting hole and is fixed, the upper port of the tumble is sealed by a sealing plate, a white water inlet is formed on the sealing plate and is connected with a white water inlet pipe, a water return port is also formed on the sealing plate, a water return pipe is connected between the water return port and the water outlet on the tower body, and a pump device is arranged on the water return pipe;
an annular space is arranged between the inner wall surface of the tower body and the outer wall surface of the tumble cylinder, the space forms a water storage area, a water outlet on the tower body is positioned at the upper part of the water storage area, the lower part of the tumble cylinder is an outward-expanded conical section, and the lower end of the tumble cylinder forms a bell mouth to narrow the lower port of the water storage area;
the baffle is an annular plate, sets firmly on the internal perisporium of tower body, be located the below of tumble section of thick bamboo, the baffle with there is a clearance and with between the port under the tumble section of thick bamboo in the vertical direction the annular of water storage district port down corresponds, the bore of mouth is less than under the baffle the bore of port under the tumble section of thick bamboo.
Preferably, the diameter D of the tower bodyTower with a tower bodyAnd the diameter D of the tumble cylinderRollerThe relationship of (1) is:
Dtower with a tower body＝(1.5-2.5)DRoller (1)
More preferably, the diameter of the tumble drum is half the diameter of the tower body.
Preferably, the height H of the upper cylindrical section of the column bodyTower with a tower bodyAnd total height H of tumbleRollerThe relationship of (1) is:
Htower with a tower body＝(1.5-2.5)HRoller (2)
More preferably, the total height of the tumble drum is half the height of the upper cylinder section of the tower body.
The outlet at the lower end of the cone at the lower part of the tower body is connected with a pulp discharge pipe, a valve is arranged on the pulp discharge pipe, and a pump device is also arranged on the pulp discharge pipe.
Preferably, the water outlet is formed at the position 1 meter below the upper end of the tower body.
Preferably, the upper port of the tumble is 0.15-0.3 m higher than the upper end cover of the tower body. The optimum value is 0.2 m.
Preferably, the distance between the lower port of the conical section expanded from the lower part of the tumble drum and the inner wall of the tower body is 40-60% of the distance between the outer wall surface of the tumble drum and the inner wall surface of the tower body, and the optimal value is 50%.
Preferably, the horizontal projection length L of the conical section at the lower part of the tumble isLevel ofA distance L between the tumble drum and the tower bodyDistance between each otherThe relationship of (1) is:
Llevel of＝(0.3-0.7)LDistance between each other (3)
More preferably, the length of the horizontal projection of the tapered section is half of the pitch. Preferably, the baffle is a downwardly inclined conical plate, the angle of inclination of the baffle is preferably 43 ° to 46 °, and most preferably 45 °.
Preferably, the gap in the vertical direction between the baffle plate and the lower port of the tumble is 0.15 to 0.3 m. The optimum value is 0.2 m.
Preferably, the horizontal projection length L of the baffle plateLevel of gearA distance L between the tumble drum and the tower bodyDistance between each otherAre equal.
The baffle and/or the tumble cylinder may be provided with a wiper, and the wiper may be connected to a driving mechanism. The principle of separating the pulp in the white water by the environment-friendly white water pulp recovery device provided by the utility model is as follows: white water enters the tumble from a white water inlet of the tumble, then flows downwards to the middle of the tumble entering the tower body, flows upwards along the inclined wall surface of the lower cone after reaching the bottom of the tower body, then flows upwards below the baffle plate, bypasses the baffle plate and then flows upwards, enters the water storage area from a gap between the tumble and the baffle plate, and before entering the water storage area, pulp in the white water is partially precipitated and separated in a flow channel with constantly changed flow cross sections provided by the tumble, the tower body and the baffle plate, and is precipitated again in the water storage area, so that the content of the pulp in liquid discharged from a water outlet is greatly reduced. The separated paper pulp can reach 90 percent. Furthermore, the tower body, the tumbling cylinder and the baffle in the environment-friendly white water pulp recycling device have the dimensional relationship and the corresponding relationship, and the white water containing the pulp can be effectively separated in the tower body, the tumbling cylinder and the baffle.
In order to separate pulp more fully, the environment-friendly white water pulp recycling device can be further connected with a sedimentation tank, and a pipeline is connected to the water outlet to introduce white water into the sedimentation tank for further sedimentation and separation of the pulp. The method for recovering pulp by using the white water pulp recovering device comprises the following steps:
step 1: white water is injected into the roller flow cylinder from a white water inlet pipe on the upper end plate of the roller flow cylinder;
step 2: the treated water discharged from the water outlet on the tower body is selectively subjected to the following one step:
step A, directly discharging qualified treated water;
step B, unqualified treated water:
the water enters the rolling flow cylinder from the water outlet through the water return pipe through the water return port and returns to the tower body; or,
and discharging the water into a sedimentation tank from a water outlet through a pipeline, standing for a set time, discharging qualified sedimentation water at the middle upper part of the sedimentation tank, and feeding the unqualified sedimentation water at the lower part of the sedimentation tank into the rolling flow cylinder through a white water inlet pipe or a water return pipe.
And (5) repeating the step 1 and the step 2, and continuously treating the white water into water meeting the discharge requirement for discharge.
And opening an outlet at the lower end of the tower body to discharge the settled pulp. Preferably, in the step B, the clear water with the height more than three quarters in the sedimentation tank is discharged, and the remaining one quarter of the sedimentation water is pumped up and is introduced into the tumbling cylinder again.
The environment-friendly white water pulp recycling device and the method for processing white water by using the device can efficiently separate pulp in white water, can recycle fine fibers and pulp contained in the white water, reduce raw material consumption, achieve the recovery rate of more than 90 percent, realize the circular processing of the white water in the device, discharge no white water, reduce the pressure of a sewage processing link, reduce the pulp waste and save energy.
The utility model is explained in detail below with reference to the figures and examples.
Drawings
Fig. 1 is a schematic structural view of an environment-friendly white water pulp recovery apparatus provided by the present invention. Detailed Description
Fig. 1 shows an embodiment of the environment-friendly white water pulp recycling apparatus according to the present invention, wherein the upper portion of the tower body 1 is a cylinder made of stainless steel with a height of 20 m, an inner diameter of 0.6 m and a wall thickness of 0.005 m, the lower portion is connected with a cone with a height of 3 m, a water outlet 2 with a diameter of 0.055 m is opened at a position 1 m below the upper end of the tower body 1, and the water outlet 2 is connected with a water discharge pipe 11 with a diameter matching with the water outlet. The lower end of the lower cone of the tower body 1 is provided with an outlet 7 with the caliber of 0.055 meter, the outlet 7 is connected with a pulp discharge pipe 9 with the diameter matched with the diameter, and the fine fibers and the pulp contained at the bottom of the tower body 1 are pumped out and recovered by the power provided by a pump 13.
The upper part of the tumble cylinder 4 is a cylinder body, the lower part of the tumble cylinder is an outward-expanding conical section, the adopted material is stainless steel, the inner diameter is 0.30 meter, the total height is 10 meters, the wall thickness is 0.005 meter, the upper end of the tumble cylinder is provided with a sealing plate or is called a cover 8, the cover 8 is higher than the upper end of the tower body by 0.20 meter, the cover 8 is provided with a water inlet 10 and a water return port 5, the water inlet is connected with a white water inlet pipe 6, and the water return port 5 is connected with a drainage pipe 11. The lower part of the tumble 4 is an outward-expanding conical section, the lower end of the tumble forms a bell mouth, and the extended transverse length L of the lower end of the tumble 4Level ofThat is, the length of the horizontal projection of the tapered section is kept at the length L between the inner wall surface of the tower body 1 and the outer wall surface of the tumble 4Distance between each otherHalf of that. The upper end of the tumble cylinder 4 is hermetically connected with the tower body 1.
The baffle 3 is an annular plate and is arranged on the inner wall around the lower part section in the tower body 1, the baffle 3 is a downward inclined conical body with an angle of 45 degrees, and the transverse length L of the baffle 3Level of gearNamely, the length of the horizontal projection of the conical body is equal to the distance between the tower body 1 and the upper cylinder body of the tumble 4, and the vertical gap L between the baffle 3 and the extension part of the lower end bell mouth of the tumble 4GapIs 0.20 m. The water outlet 2 is also connected with a pipeline leading to a sedimentation basin (not shown in the figure).
According to the device for recovering white water pulp, a proper distance is kept between the inner wall of the tower body 1 and the outer wall of the tumbling cylinder 4 to form a cavity of a water storage area; the lower part of the tower body 1 is conical. The upper part of the outer wall of the tower body 1 is provided with a water outlet 2 which is communicated with a water discharge pipeline 11, and discharged water can flow back to the tumbling cylinder for circulation treatment through a pump 12 to continuously separate paper pulp contained in the discharged water. The lower end of the tumble 4 is a bell mouth, and the extended transverse length is kept to be half of the length between the tower body 1 and the outer wall of the tumble 4, so that the clear water can be more clear, and the pulp in the newly-fed white water is prevented from being mixed in the clear water at the upper end; baffle 3 is installed around this internal lower subsection of tower, the horizontal length of baffle 3 keeps half of length between tower body and tumble section of thick bamboo outer wall, and the certain angle of downward sloping, can prevent effectively like this that the paper pulp in the white water from upturning the clear water that influences the upper end, influence the precipitation effect, baffle 3 keeps certain clearance with the lower extreme bell mouth epitaxy of tumble section of thick bamboo 4, the baffle prevents that tiny fibre and paper pulp that contain in the white water from overturning the tower this internal airtight cavity promptly the upper end in water storage district, if this clearance is too big, just can make the paper pulp in the white water of newly-advancing turn over the clear water that influences the upper end more, influence the precipitation effect, but if the clearance is too little, can influence the efficiency that white water was handled. The bottom of the tower body 1 is provided with an outlet which is communicated with a pipeline 9, a pump 13 is arranged on the pipeline 9, and the pump 13 and the pipeline 9 can recycle the fine fiber at the conical bottom of the tower body and the white water with high pulp content for papermaking.
When the environment-friendly white water pulp recovery device provided by the utility model is used for recovering white water pulp in papermaking, white water to be treated is input into the roller flow cylinder 4 through the white water inlet pipe at the end of the roller flow cylinder 4, and then continuously downwards enters the tower body below the baffle plate through the middle channel on the baffle plate 3, the cone-shaped body is favorable for the precipitation of the pulp when the pulp in the white water enters the lower end cone-shaped body of the tower body 1, the liquid level of the white water in the tower body 1 rises along with the continuous entering of the subsequent white water, the pulp close to the wall surface is blocked by the baffle plate 3, the pulp in the white water close to the center is smashed by the newly-entered white water along with the continuous rising of the liquid level of the white water pulp, the white water which can come up enters the water storage area through the gap between the roller flow cylinder 4 and the baffle plate 3, and after multiple times of precipitation and separation, the water in the water storage area is much clarified and finally discharged from the water outlet, if the pulp concentration in the detected water is still higher at the water outlet, the pump device on the water return pipe can be opened, and the detected water returns to the white water pulp recovering device from the water inlet to be treated again until the pulp concentration reaches the standard and is discharged again.
Yet another approach is: the water discharged from the water outlet 2 of the tower body 1 flows into a sedimentation tank outside the tower body, after the water in the sedimentation tank is discharged to 3/4 of the storage capacity at regular time, the residual 1/4 water in the sedimentation tank is returned to the tumble cylinder 4 by a pump through a water discharge pipeline 11 for retreatment, and the circulation is carried out.
And opening an outlet at the lower end of the tower body at a set time or according to the amount of the pulp settled in the tower body, and discharging the settled pulp.
The upper port of the tumble cylinder 4 is higher than the upper port of the tower body 1, so that people can hold the upper end of the tumble cylinder to stand for the convenience of installation and maintenance.
In addition, wipers may be provided on both the baffle 3 and the tumble drum 4 to periodically scrub the pulp fibers deposited thereon.
Claims (4)
1. The utility model provides an environment-friendly retrieves white water paper pulp device which characterized in that: comprises a tower body, a tumble and a baffle,
the tower body is a cylinder, the lower part of the cylinder is a cone, the upper part of the cylinder is provided with a water outlet, the lower end of the cone is provided with an outlet, the upper end of the cylinder is provided with a seal cover, and the seal cover is provided with a mounting hole;
the tumble is a cylinder vertically arranged in the tower body, the upper part of the cylinder hermetically extends out of the mounting hole and is fixed, the upper port of the tumble is sealed by a sealing plate, a white water inlet is formed on the sealing plate and is connected with a white water inlet pipe, a water return port is also formed on the sealing plate, a water return pipe is connected between the water return port and the water outlet on the tower body, and a pump device is arranged on the water return pipe;
an annular space is arranged between the inner wall surface of the tower body and the outer wall surface of the tumble cylinder, the space forms a water storage area, a water outlet on the tower body is positioned at the upper part of the water storage area, the lower part of the tumble cylinder is an outward-expanded conical section, and the lower end of the tumble cylinder forms a bell mouth to narrow the lower port of the water storage area;
the baffle is an annular plate and is fixedly arranged on the inner peripheral wall of the tower body and located below the tumble cylinder, a gap is formed between the baffle and the lower port of the tumble cylinder in the vertical direction and vertically corresponds to the annular lower port of the water storage area, and the caliber of the inner port of the baffle is smaller than that of the lower port of the tumble cylinder.
2. The environmentally friendly recycled white water pulp apparatus of claim 1, wherein:
diameter D of the tower bodyTower with a tower bodyAnd the diameter D of the tumble cylinderRollerThe relationship of (1) is:
Dtower with a tower body＝(1.5-2.5)DRoller(ii) a And/or the presence of a gas in the gas,
height H of upper cylinder section of said tower bodyTower with a tower bodyAnd total height H of tumbleRollerThe relationship of (1) is:
Htower with a tower body＝(1.5-2.5)HRoller(ii) a And/or the presence of a gas in the gas,
the water outlet is formed at the position 1 meter below the upper end of the tower body; and/or the presence of a gas in the gas,
the outlet at the lower end of the cone at the lower part of the tower body is connected with a pulp discharge pipe, a valve is arranged on the pulp discharge pipe, and a pump device is also arranged on the pulp discharge pipe; and/or the presence of a gas in the gas,
the upper port of the tumble is 0.15-0.3 m higher than the upper end cover of the tower body; and/or the presence of a gas in the gas,
the distance between the lower port of the conical section expanded outside the lower part of the tumble cylinder and the inner wall of the tower body is 40-60% of the distance between the outer wall surface of the tumble cylinder and the inner wall surface of the tower body; and/or the presence of a gas in the gas,
the horizontal projection length L of the conical section at the lower part of the tumbleLevel ofA distance L between the tumble drum and the tower bodyDistance between each otherThe relationship of (1) is:
Llevel of＝(0.3-0.7)LDistance between each other(ii) a And/or the presence of a gas in the gas,
the baffle is a downward inclined conical plate; and/or the presence of a gas in the gas,
the gap between the baffle and the lower port of the tumble is 0.15-0.3 m in the vertical direction; and/or the presence of a gas in the gas,
the horizontal projection length L of the baffleLevel of gearA distance L between the tumble drum and the tower bodyDistance between each otherEqual; and/or the presence of a gas in the gas,
and a windshield wiper is arranged on the baffle and/or the tumble.
3. The environmentally friendly recycled white water pulp apparatus of claim 2, wherein:
the diameter of the tumble drum is half of the diameter of the tower body; and/or the presence of a gas in the gas,
the total height of the tumble is half of the height of the upper cylindrical section of the tower body; and/or the presence of a gas in the gas,
the upper port of the tumble is 0.2 m higher than the upper end cover of the tower body; and/or the presence of a gas in the gas,
the distance between the lower port of the conical section expanded outside the lower part of the tumble cylinder and the inner wall of the tower body is half of the distance between the outer wall surface of the tumble cylinder and the inner wall surface of the tower body; and/or the presence of a gas in the gas,
the horizontal projection length of the conical section at the lower part of the tumble cylinder is half of the distance between the tumble cylinder and the tower body; and/or the presence of a gas in the gas,
the distance between the lower port of the conical section expanded outside the lower part of the tumble cylinder and the inner wall of the tower body is half of the distance between the outer wall surface of the tumble cylinder and the inner wall surface of the tower body; and/or the presence of a gas in the gas,
the inclination angle of the baffle is 43-46 degrees; and/or the presence of a gas in the gas,
and the vertical gap between the baffle and the extension part of the lower end bell mouth of the tumble is 0.20 m.
4. The environmentally friendly recycled white water pulp apparatus of claim 3, wherein:
the inclination angle of the baffle is 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121421810.6U CN216129892U (en) | 2021-06-23 | 2021-06-23 | Environment-friendly white water paper pulp recovery device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121421810.6U CN216129892U (en) | 2021-06-23 | 2021-06-23 | Environment-friendly white water paper pulp recovery device |
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| CN216129892U true CN216129892U (en) | 2022-03-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506169A (en) * | 2021-06-23 | 2022-12-23 | 迁安市恒茂纸业有限公司 | Environment-friendly white water pulp recycling device and method |
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2021
- 2021-06-23 CN CN202121421810.6U patent/CN216129892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506169A (en) * | 2021-06-23 | 2022-12-23 | 迁安市恒茂纸业有限公司 | Environment-friendly white water pulp recycling device and method |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An environmentally friendly device for recycling white water pulp Effective date of registration: 20220916 Granted publication date: 20220325 Pledgee: TANGSHAN BANK Co.,Ltd. Pledgor: QIAN'AN HENGMAO PAPER Co.,Ltd. Registration number: Y2022990000628 |
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Date of cancellation: 20230822 Granted publication date: 20220325 Pledgee: TANGSHAN BANK Co.,Ltd. Pledgor: QIAN'AN HENGMAO PAPER Co.,Ltd. Registration number: Y2022990000628 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An environmentally friendly device for recycling white water pulp Granted publication date: 20220325 Pledgee: China Postal Savings Bank Co.,Ltd. Qian'an Branch Pledgor: QIAN'AN HENGMAO PAPER Co.,Ltd. Registration number: Y2024980028744 |