CN113512904A - Liquid adding system and method for producing craft paper - Google Patents
Liquid adding system and method for producing craft paper Download PDFInfo
- Publication number
- CN113512904A CN113512904A CN202110728792.4A CN202110728792A CN113512904A CN 113512904 A CN113512904 A CN 113512904A CN 202110728792 A CN202110728792 A CN 202110728792A CN 113512904 A CN113512904 A CN 113512904A
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- Prior art keywords
- pulp
- strength agent
- conveying
- dry strength
- pipeline
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007788 liquid Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 97
- 238000002156 mixing Methods 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000000123 paper Substances 0.000 claims abstract description 38
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 31
- 239000002002 slurry Substances 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 238000011010 flushing procedure Methods 0.000 claims abstract description 17
- 239000002655 kraft paper Substances 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims abstract description 10
- 230000003068 static effect Effects 0.000 claims description 24
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 238000010790 dilution Methods 0.000 claims description 11
- 239000012895 dilution Substances 0.000 claims description 11
- 239000010813 municipal solid waste Substances 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 9
- 229920001131 Pulp (paper) Polymers 0.000 claims description 8
- 150000001450 anions Chemical class 0.000 claims description 4
- 239000000835 fiber Substances 0.000 abstract description 9
- 125000000129 anionic group Chemical group 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000005406 washing Methods 0.000 description 3
- 238000007865 diluting Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/20—Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Manufacturing & Machinery (AREA)
- Paper (AREA)
Abstract
The invention relates to a liquid adding system and method for producing kraft liner boards. The invention comprises the following steps: the dry strength agent mixing device comprises a dry strength agent conveying pipeline, a water conveying pipeline, a first mixing pipeline, a mixer assembly, a pulp mixing pipeline, a paper machine pulp tank, an aluminum sulfate conveying pipeline, a pulp conveying pipe, a second mixing pipeline and a pulp flushing tank, wherein the dry strength agent conveying pipeline is communicated with the water conveying pipeline and then communicated with a first mixing inlet; the slurry distribution pipeline is communicated with the slurry inlet; the second mixing pipeline is provided with a slurry pump for conveying the fluid in the second mixing pipeline; the slurry flushing groove comprises a slurry flushing inlet, and the second mixing outlet is communicated with the slurry flushing inlet. The dry strength agent adding point is placed at a position behind the aluminum sulfate adding point, namely the dry strength agent adding point is placed in front of the slurry pump, the dry strength agent and the fibers are more fully mixed to form tighter combination, and the contribution of the dry strength agent to the paper forming index is effectively improved.
Description
Technical Field
The invention relates to the technical field of pulping and papermaking, in particular to a liquid adding system and method for producing kraft paper.
Background
In the production process of the craft paper, the dry strength agent is required to be used for enhancing the physical indexes of paper. While a large amount of anionic trash is present in the pulp, which can negatively charge the slurry PCD (particle charge) of the approach system, the presence of anionic trash can greatly affect the binding of the dry strength agent to the fibers. In order to reduce the negative effect of the anionic trash on the dry strength agent enhancing effect, aluminum sulfate or PAC (polyaluminium chloride) is usually added before the dry strength agent adding point to remove the anionic trash, and the PCD of the system is adjusted to be in a reasonable range.
When the dry strength agent is added, the adding point of the dry strength agent is usually arranged at the position of an inlet pipeline of a paper machine pulp washing tank, the adding point of aluminum sulfate is more ahead than the dry strength agent, the distance between the adding point of the aluminum sulfate and the adding point of the dry strength agent is longer, the anion garbage influences the action time of the dry strength agent to be longer, the effect of the dry strength agent is limited, and the combination effect of the dry strength agent and fibers is influenced.
Disclosure of Invention
Therefore, the invention aims to solve the technical problems that the distance between the adding point of the aluminum sulfate and the adding point of the dry strength agent is long, the anion waste influences the action time of the dry strength agent to be long, and the combination effect of the dry strength agent and fibers is influenced in the prior art.
In order to solve the technical problem, the invention provides a liquid adding system for producing craft paper, which comprises: the system comprises a dry strength agent conveying pipeline, a water conveying pipeline, a first mixing pipeline, a mixer assembly, a pulp mixing pipeline, a paper machine pulp tank, an aluminum sulfate conveying pipeline, a pulp conveying pipe, a second mixing pipeline and a pulp flushing tank, wherein the dry strength agent conveying pipeline is used for conveying a dry strength agent; the water conveying pipeline is used for conveying dilution water; the first mixing pipeline comprises a first mixing inlet and a first mixing outlet, and the dry strength agent conveying pipeline is communicated with the water conveying pipeline and then communicated with the first mixing inlet; the mixer assembly is arranged on the mixing pipeline; the pulp distribution pipeline is used for conveying pulp; the paper machine pulp tank comprises a pulp inlet and a pulp outlet, and the pulp distribution pipeline is communicated with the pulp inlet; the aluminum sulfate conveying pipeline is used for conveying aluminum sulfate into a pulp tank of a paper machine; the pulp conveying pipe comprises a pulp conveying inlet and a pulp conveying outlet, the pulp conveying inlet is communicated with the pulp outlet, and the pulp conveying outlet is communicated with the first mixing outlet; the second mixing pipeline comprises a second mixing inlet and a second mixing outlet, the second mixing inlet is respectively communicated with the slurry conveying outlet and the first mixing outlet, and a slurry pump for conveying the fluid in the second mixing pipeline is arranged on the second mixing pipeline; the slurry flushing groove comprises a slurry flushing inlet, and the second mixing outlet is communicated with the slurry flushing inlet.
In one embodiment of the invention, a first hand valve for controlling the opening or closing of fluid in the dry strength agent conveying pipeline is arranged on the dry strength agent conveying pipeline; and a second hand valve for controlling the fluid in the water conveying pipeline to be opened or closed is arranged on the water conveying pipeline.
In an embodiment of the invention, the dry strength agent conveying pipeline is further provided with a first flow meter and a first regulating valve, the first regulating valve is used for regulating the flow rate of the dry strength agent in the dry strength agent conveying pipeline, and the first flow meter is used for displaying the flow rate value of the dry strength agent in the dry strength agent conveying pipeline.
In an embodiment of the invention, the water pipe is further provided with a second flowmeter and a second regulating valve, the second regulating valve is used for regulating the water flow rate in the water pipe, and the second flowmeter is used for displaying the water flow rate value in the water pipe.
In an embodiment of the present invention, the ratio of the water flow rate in the water pipe to the dry strength agent flow rate in the dry strength agent conveying pipe ranges from 15: 1 to 10: 1.
In one embodiment of the invention, the mixer assembly comprises a first static mixer, a first dynamic mixer and a second static mixer arranged in sequence in the direction of fluid transport on a first mixing conduit.
In one embodiment of the invention, a third hand valve is arranged between the first static mixer and the first dynamic mixer, and a fourth hand valve is arranged between the first dynamic mixer and the second static mixer.
In one embodiment of the invention, a second dynamic mixer is arranged on the slurry preparation pipeline.
In one embodiment of the invention, the top of the machine chest is provided with an addition port at a position far away from the slurry pump, and the aluminum sulfate conveying pipeline is communicated with the addition port.
The invention also provides a liquid adding method for producing craft paper, which comprises the following steps: meanwhile, conveying the dry strength agent to a dry strength agent conveying pipeline and conveying the dilution water to a water pipeline, and controlling the flow rate ratio of the fluids in the dry strength agent conveying pipeline and the water pipeline to be 15: 1 to 10: 1; the dry strength agent and the dilution water enter a first mixing pipeline and are mixed sequentially through a first static mixer, a first dynamic mixer and a second static mixer to obtain the diluted dry strength agent; the paper pulp is conveyed through a pulp mixing pipeline, mixed through a second dynamic mixer and then enters a paper machine pulp tank, and aluminum sulfate is conveyed to the paper machine pulp tank through an aluminum sulfate conveying pipeline at the top of the paper machine pulp tank to react so as to remove anion garbage, so that reacted paper pulp is obtained; and the pulp pump conveys the reacted pulp and the diluted dry strength agent in the pulp pool of the paper machine to the pulp flushing tank through a second mixing pipeline.
Compared with the prior art, the technical scheme of the invention has the following advantages:
aiming at the problem that the effect is better exerted by the matched addition of the dry strength agent and the aluminum sulfate in the process of producing the kraft liner board, after various schemes of the matched addition of the dry strength agent and the aluminum sulfate are tried, the dry strength agent addition point is placed at a position behind the aluminum sulfate addition point, namely the dry strength agent addition point is placed in front of a slurry pump, the dry strength agent and fibers are more fully mixed, more compact combination is formed, and the contribution of the dry strength agent to the paper forming index is effectively improved; and a system for adding the dry strength agent and automatically diluting on line is added, so that the action effect of the dry strength agent can be effectively improved, and the unit consumption of the dry strength agent and aluminum sulfate per ton of paper is effectively reduced on the premise of controlling the same system PCD value.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic diagram of the system architecture of the present invention.
The specification reference numbers indicate: 1. a dry strength agent conveying pipeline; 11. a first hand valve; 12. a first flow meter; 13. a first regulating valve; 2. a water delivery pipeline; 21. a second hand valve; 22. a second flow meter; 23. a second regulating valve; 3. a first mixing conduit; 4. a mixer assembly; 41. a first static mixer; 42. a first dynamic mixer; 43. a second static mixer; 44. a third hand valve; 45. a fourth hand valve; 5. a slurry mixing pipeline; 51. a second dynamic mixer; 6. a paper machine stock chest; 7. an aluminum sulfate delivery pipe; 8. a pulp conveying pipe; 9. a second mixing conduit; 91. a pulp pump; 10. a pulp washing groove;
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1, the present embodiment provides a liquid adding system for kraft paper production, including:
the dry strength agent conveying pipeline 1 is used for conveying a dry strength agent;
a water pipe 2 for conveying dilution water;
the first mixing pipeline 3 comprises a first mixing inlet and a first mixing outlet, and the dry strength agent conveying pipeline 1 is communicated with the water conveying pipeline 2 and then communicated with the first mixing inlet;
a mixer assembly 4 disposed on the mixing conduit;
a pulp distribution pipeline 5 for conveying pulp;
the paper machine pulp tank 6 comprises a pulp inlet and a pulp outlet, and the pulp distribution pipeline 5 is communicated with the pulp inlet;
the aluminum sulfate conveying pipeline 7 is used for conveying aluminum sulfate into the paper machine pulp tank 6;
the pulp conveying pipe 8 comprises a pulp conveying inlet and a pulp conveying outlet, the pulp conveying inlet is communicated with the pulp outlet, and the pulp conveying outlet is communicated with the first mixing outlet;
the second mixing pipeline 9 comprises a second mixing inlet and a second mixing outlet, the second mixing inlet is respectively communicated with the slurry conveying outlet and the first mixing outlet, and a slurry pump 91 for conveying the fluid in the second mixing pipeline 9 is arranged on the second mixing pipeline 9;
the pulp flushing tank 10 comprises a pulp flushing inlet, the second mixing outlet is communicated with the pulp flushing inlet, and the pulp flushing tank 10 contains high-concentration white water stripped from the wire part and is used for mixing and diluting the fed pulp.
The dry strength agent adding point is placed in front of the pulp pump 91, the dry strength agent is more fully contacted and mixed with the pulp fibers by means of the disturbance capacity of the pulp pump, more compact combination is formed, and the contribution of the dry strength agent to the paper forming index is effectively improved.
Specifically, a first hand valve 11 for controlling the opening or closing of fluid in the dry strength agent conveying pipeline 1 is arranged on the dry strength agent conveying pipeline 1; a second hand valve 21 for controlling the opening or closing of the fluid in the water pipeline 2 is arranged on the water pipeline 2; the dry strength agent conveying pipeline 1 is further provided with a first flow meter 12 and a first regulating valve 13, the first regulating valve 13 is used for regulating the flow rate of the dry strength agent in the dry strength agent conveying pipeline 1, and the first flow meter 12 is used for displaying the flow rate value of the dry strength agent in the dry strength agent conveying pipeline 1; the water pipe 2 is further provided with a second flowmeter 22 and a second regulating valve 23, the second regulating valve 23 is used for regulating the flow rate of water in the water pipe 2, and the second flowmeter 22 is used for displaying the flow rate value of water in the water pipe 2. Through the arrangement, the dilution precision of the dry strength agent is effectively improved, the dispersion of the dry strength agent is facilitated, and the use effect of the dry strength agent is stabilized; preferably, the numerical ratio range of the water flow rate in the water conveying pipeline 2 to the dry strength agent flow rate in the dry strength agent conveying pipeline 1 is 15: 1 to 10: 1.
Specifically, the mixer assembly 4 includes a first static mixer 41, a first dynamic mixer 42, and a second static mixer 43, which are arranged in this order in the fluid conveying direction on the first mixing pipe 3. The dry strength agent and water are mixed more fully by the three mixers of the first static mixer 41, the first dynamic mixer 42 and the second static mixer 43 because the dry strength agent has high molecular polymerization degree and high viscosity in a normal state, and cannot well play a mixing role in common stirring dilution, and flocculation is easy to generate.
Specifically, a third hand valve 44 is provided between the first static mixer 41 and the first dynamic mixer 42, and a fourth hand valve 45 is provided between the first dynamic mixer 42 and the second static mixer 43. The on-off of the fluid between the first static mixer 41, the first dynamic mixer 42 and the second static mixer 43 can be controlled easily, and the mixing state can be controlled better.
Specifically, a second dynamic mixer 51 is arranged on the slurry mixing pipeline 5. The pulp with long fibers, medium fibers, short fibers and wood pulp is effectively fed into the second dynamic mixer 51 through the pulp distribution pipe 5 to be fully mixed.
Specifically, an adding port is arranged at the top of the paper machine pulp tank 6 at a position far away from a pulp pump, the aluminum sulfate conveying pipeline 7 is communicated with the adding port, and in addition, the adding point of aluminum sulfate is properly moved forward, and the distance between the adding point of aluminum sulfate and the adding point of a dry strength agent is shortened as much as possible. Through the arrangement, the adding point of the aluminum sulfate is arranged at the top of the paper machine pulp tank 6, and the aluminum sulfate can react with the pulp in the paper machine pulp tank 6 in advance, so that the anionic garbage in the paper machine pulp tank 6 is removed, the negative influence of the anionic garbage on the reinforcing effect of the dry strength agent is reduced, and the dry strength agent can be effectively protected.
The embodiment also provides a liquid adding method for producing craft paper, which comprises the following steps:
meanwhile, the dry strength agent is conveyed to the dry strength agent conveying pipeline 1, the dilution water is conveyed to the water conveying pipeline 2, and the flow speed ratio of the fluids in the dry strength agent conveying pipeline 1 and the water conveying pipeline 2 is controlled to be 15: 1 to 10: 1;
the dry strength agent and the dilution water enter the first mixing pipeline 3 and are mixed sequentially through a first static mixer 41, a first dynamic mixer 42 and a second static mixer 43 to obtain the diluted dry strength agent;
the paper pulp is conveyed through a pulp distribution pipeline 5, mixed through a second dynamic mixer 51 and then enters a paper machine pulp tank 6, and aluminum sulfate is conveyed to the paper machine pulp tank 6 through an aluminum sulfate conveying pipeline 7 at the top of the paper machine pulp tank 6 to react so as to remove anionic garbage, so that reacted paper pulp is obtained;
the pulp pump 91 conveys the reacted pulp in the paper machine pulp chest 6 and the diluted dry strength agent to the pulp washing tank 10 through the second mixing pipeline 9.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. A liquid addition system for kraft liner board production, comprising:
the dry strength agent conveying pipeline is used for conveying the dry strength agent;
a water pipe for conveying dilution water;
the first mixing pipeline comprises a first mixing inlet and a first mixing outlet, and the dry strength agent conveying pipeline is communicated with the water conveying pipeline and then communicated with the first mixing inlet;
a mixer assembly disposed on the mixing conduit;
the pulp distribution pipeline is used for conveying paper pulp;
the paper machine pulp tank comprises a pulp inlet and a pulp outlet, and the pulp distribution pipeline is communicated with the pulp inlet;
the aluminum sulfate conveying pipeline is used for conveying aluminum sulfate into the pulp tank of the paper machine;
the pulp conveying pipe comprises a pulp conveying inlet and a pulp conveying outlet, the pulp conveying inlet is communicated with the pulp outlet, and the pulp conveying outlet is communicated with the first mixing outlet;
the second mixing pipeline comprises a second mixing inlet and a second mixing outlet, the second mixing inlet is respectively communicated with the slurry conveying outlet and the first mixing outlet, and a slurry pump for conveying the fluid in the second mixing pipeline is arranged on the second mixing pipeline;
and the slurry flushing groove comprises a slurry flushing inlet, and the second mixing outlet is communicated with the slurry flushing inlet.
2. The liquid adding system for kraft liner board production according to claim 1, wherein the dry strength agent conveying pipe is provided with a first hand valve for controlling the opening or closing of the fluid in the dry strength agent conveying pipe; and a second hand valve for controlling the fluid in the water conveying pipeline to be opened or closed is arranged on the water conveying pipeline.
3. The liquid adding system for kraft liner board production according to claim 1, wherein the dry strength agent conveying pipe is further provided with a first flow meter and a first regulating valve, the first regulating valve is used for regulating the flow rate of the dry strength agent in the dry strength agent conveying pipe, and the first flow meter is used for displaying the flow rate value of the dry strength agent in the dry strength agent conveying pipe.
4. The liquid adding system for the production of craft paper according to claim 2, characterized in that the water pipe is further provided with a second flow meter and a second regulating valve, the second regulating valve is used for regulating the flow rate of water in the water pipe, and the second flow meter is used for displaying the flow rate value of water in the water pipe.
5. A liquid adding system for kraft liner board production according to claim 3, wherein the ratio of the water flow rate in the water pipe to the dry strength agent flow rate in the dry strength agent conveying pipe is in the range of 15: 1 to 10: 1.
6. A liquid addition system for kraft liner production according to claim 1, wherein the mixer assembly comprises a first static mixer, a first dynamic mixer, a second static mixer arranged in sequence on the first mixing pipe in the direction of fluid transport.
7. A liquid adding system for kraft liner board production according to claim 6, wherein a third hand valve is provided between the first static mixer and the first dynamic mixer, and a fourth hand valve is provided between the first dynamic mixer and the second static mixer.
8. A liquid addition system for kraft liner production according to claim 1, wherein a second dynamic mixer is provided on the size distribution pipe.
9. The liquid adding system for the kraft liner production according to claim 1, wherein the top of the machine chest is provided with an adding port at a position away from the slurry pump, and the aluminum sulfate conveying pipe is communicated with the adding port.
10. A liquid adding method for producing craft paper is characterized by comprising the following steps:
meanwhile, conveying the dry strength agent to a dry strength agent conveying pipeline and conveying the dilution water to a water pipeline, and controlling the flow rate ratio of the fluids in the dry strength agent conveying pipeline and the water pipeline to be 15: 1 to 10: 1;
the dry strength agent and the dilution water enter a first mixing pipeline and are mixed sequentially through a first static mixer, a first dynamic mixer and a second static mixer to obtain the diluted dry strength agent;
the paper pulp is conveyed through a pulp mixing pipeline, mixed through a second dynamic mixer and then enters a paper machine pulp tank, and aluminum sulfate is conveyed to the paper machine pulp tank through an aluminum sulfate conveying pipeline at the top of the paper machine pulp tank to react so as to remove anion garbage, so that reacted paper pulp is obtained;
and the pulp pump conveys the reacted pulp and the diluted dry strength agent in the pulp pool of the paper machine to the pulp flushing tank through a second mixing pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728792.4A CN113512904A (en) | 2021-06-29 | 2021-06-29 | Liquid adding system and method for producing craft paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728792.4A CN113512904A (en) | 2021-06-29 | 2021-06-29 | Liquid adding system and method for producing craft paper |
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| Publication Number | Publication Date |
|---|---|
| CN113512904A true CN113512904A (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110728792.4A Pending CN113512904A (en) | 2021-06-29 | 2021-06-29 | Liquid adding system and method for producing craft paper |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313931A (en) * | 2014-09-26 | 2015-01-28 | 玖龙纸业（太仓）有限公司 | Device for diluting and adding caustic soda liquid for waste-paper deinking |
| CN107642003A (en) * | 2017-09-04 | 2018-01-30 | 江苏理文造纸有限公司 | A kind of manufacture method of novel environment friendly kraft paperboard |
| CN108547174A (en) * | 2018-06-26 | 2018-09-18 | 汇胜集团股份有限公司 | Starch adding set and adding method for manufacturing paper tube base paper |
| CN211199907U (en) * | 2019-11-28 | 2020-08-07 | 湖北荣成再生科技有限公司 | Processing system of regeneration thick liquids fiber strength |
| CN112195681A (en) * | 2020-07-24 | 2021-01-08 | 山鹰国际控股股份公司 | PAC (polyaluminium chloride) adding process for wet end of paper machine |
-
2021
- 2021-06-29 CN CN202110728792.4A patent/CN113512904A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313931A (en) * | 2014-09-26 | 2015-01-28 | 玖龙纸业（太仓）有限公司 | Device for diluting and adding caustic soda liquid for waste-paper deinking |
| CN107642003A (en) * | 2017-09-04 | 2018-01-30 | 江苏理文造纸有限公司 | A kind of manufacture method of novel environment friendly kraft paperboard |
| CN108547174A (en) * | 2018-06-26 | 2018-09-18 | 汇胜集团股份有限公司 | Starch adding set and adding method for manufacturing paper tube base paper |
| CN211199907U (en) * | 2019-11-28 | 2020-08-07 | 湖北荣成再生科技有限公司 | Processing system of regeneration thick liquids fiber strength |
| CN112195681A (en) * | 2020-07-24 | 2021-01-08 | 山鹰国际控股股份公司 | PAC (polyaluminium chloride) adding process for wet end of paper machine |
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Application publication date: 20211019 |