CN108660857B - Online injector for papermaking chemicals and use method thereof - Google Patents
Online injector for papermaking chemicals and use method thereof Download PDFInfo
- Publication number
- CN108660857B CN108660857B CN201810550279.9A CN201810550279A CN108660857B CN 108660857 B CN108660857 B CN 108660857B CN 201810550279 A CN201810550279 A CN 201810550279A CN 108660857 B CN108660857 B CN 108660857B
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- Prior art keywords
- tube
- injector
- central tube
- papermaking
- chemicals
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Classifications
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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Paper (AREA)
- Pipeline Systems (AREA)
Abstract
The invention provides an online injector for papermaking chemicals, which comprises a central tube, a sandwich tube and an outer tube, wherein the sandwich tube is arranged between the central tube and the outer tube, the central tube, the sandwich tube and the outer tube are connected through flange structures, the flange structures are connected through bolts, a central tube spray head is arranged at the end of the central tube, a fixing head is arranged at one end, close to the central tube spray head, of the outer tube, and the fixing head is fixed with the outer tube through a fixing clamp. The online injector for the papermaking chemicals with the three-layer structure can achieve the full mixing of the chemicals and the slurry so as to fully realize the functional effect of the wet-end chemicals; the central tube spray head is in threaded connection with the central tube, so that the quick-wear parts can be replaced conveniently and quickly; in addition, the whole injector is fixed by the fixing clip at the front end part of the outer layer tube and one end of the fixing head, so that the whole injector is simple and convenient to install and detach.
Description
Technical Field
The invention belongs to the field of papermaking, and particularly relates to a novel adding device for online injection of wet end chemicals of a papermaking machine and a using method thereof.
Background
In the papermaking industry, the traditional online chemical adding method of a pulp inlet pipe has various forms, the most common is to add an annular pipe around a main pulp pipe, the annular pipe is provided with a plurality of inlets which are directly inserted into the main pulp pipe, the installation forms are all that the on-site direct holes are formed and the pipeline is inserted for welding, the whole installation is time-consuming and labor-consuming, and the chemical directly injected into the pipeline cannot be uniformly mixed with the pulp, so that the functional effect of the wet-end chemical is directly affected; the chemical is in direct contact with the inner wall of the main slurry pipe in the flowing direction of the slurry, so that the inner wall of the slurry pipe is corroded for a long time, and the quality of the slurry is directly affected.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an online injector for papermaking chemicals and a use method thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides an online injector of papermaking chemicals, includes center tube, intermediate layer pipe and outer pipe, and the intermediate layer pipe sets up between center tube and outer pipe, connects through flange structure between center tube, intermediate layer pipe and the outer pipe, through bolted connection between the flange structure, center tube end department is provided with the center tube shower nozzle, the outer pipe is close to the one end of center tube shower nozzle and is provided with the fixed head, fixes through the fixation clamp between fixed head and the outer pipe.
The end surfaces of the central tube, the sandwich tube and the outer tube which are in contact with each other are sealed by sealing strips.
The central tube spray head is connected with the central tube through threads.
The front end of the fixing head is fixed with the hole formed in the main slurry pipe through welding.
The fluid injection ends are provided with a hand valve and a check valve.
The method for using the online injector of the papermaking chemical comprises the steps of applying the online injector of the papermaking chemical to a papermaking sizing system, wherein fluid in a central tube is built-in white water, fluid in an interlayer tube is the papermaking chemical, and fluid in an outer tube is built-in white water or the papermaking chemical; the number of online injectors for the same chemical at the same position is determined according to the size of the sectional area of the pipeline, 1 online injector is used for every 0.1 square meter and is uniformly distributed on the circumference of the main slurry pipeline, and at least one online injector is used for the same chemical at the same position; the paper-making chemical enters from the interlayer pipe and is primarily mixed with the white water in the machine or the second paper-making chemical entering from the outer layer pipe, and when the mixed material enters into the main pulp pipeline, the mixed material is fully dispersed and diluted by the white water in the machine sprayed from the central pipe, so that the purpose of fully mixing the chemical and the pulp is achieved.
The invention has the beneficial effects that: the online injector for the papermaking chemicals with the three-layer structure can achieve the full mixing of the chemicals and the slurry so as to fully realize the functional effect of the wet-end chemicals; the central tube spray head is in threaded connection with the central tube, so that the quick-wear parts can be replaced conveniently and quickly; in addition, the whole injector is fixed by the fixing clip at the front end part of the outer layer tube and one end of the fixing head, so that the whole injector is simple and convenient to install and detach.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1, the invention provides an online injector for papermaking chemicals, which comprises a central tube 7, an interlayer tube 6 and an outer tube 4, wherein the interlayer tube 6 is arranged between the central tube 7 and the outer tube 4, the central tube 7, the interlayer tube 6 and the outer tube 4 are connected through flange structures, the flange structures are connected through bolts 5, a central tube spray head 1 is arranged at the end of the central tube 7, a fixing head 2 is arranged at one end of the outer tube 4, which is close to the central tube spray head 1, and the fixing head 2 and the outer tube 4 are fixed through a fixing clamp 3.
The end surfaces of the central tube 7, the interlayer tube 6 and the outer layer tube 4 which are in contact with each other are sealed by sealing strips, so that the tightness and stability of the three-layer structure inside are ensured.
The central tube nozzle 1 is connected with the central tube 7 through threads. The part of the central tube spray head 1 is in direct contact with the slurry, so that abrasion can be generated in the using process, and the quick-wear parts can be replaced conveniently and quickly through threaded connection.
The front end of the fixing head 2 is fixed with the hole formed by the main slurry pipe through welding. The fixing head 2 is fixed on the main slurry pipeline, the whole injector can be separated from the main slurry pipeline by loosening the fixing clamp, and the whole injector is simple and convenient to install and detach.
The fluid injection ends are each provided with a hand valve 8 and a check valve 9.
When the online injector of the papermaking chemical is used, the online injector of the papermaking chemical is applied to a papermaking sizing system, the fluid in the central tube 7 is white water in a machine, the fluid in the interlayer tube 6 is the papermaking chemical, and the fluid in the outer tube 4 is white water in a machine or the papermaking chemical; the number of online injectors for the same chemical at the same position is determined according to the size of the sectional area of the pipeline, 1 online injector is used for every 0.1 square meter and is uniformly distributed on the circumference of the main slurry pipeline, and at least one online injector is used for the same chemical at the same position; the paper-making chemical enters from the interlayer pipe 6 and is primarily mixed with the white water in the machine or the second paper-making chemical entering from the outer layer pipe 4, and when the mixed material enters into the main pulp pipeline, the mixed material is fully dispersed and diluted by the white water in the machine sprayed from the central pipe, so that the purpose of fully mixing the chemical and the pulp is achieved.
While the foregoing is directed to the preferred embodiments of the present invention, it should be noted that the present invention is not limited to the examples described above, and that various changes and modifications could be made without departing from the general inventive concept, and these should also be considered as the scope of the present invention.
Claims (1)
1. A method of using an on-line injector for papermaking chemicals, characterized by: the online injector of the papermaking chemical is applied to a papermaking sizing system, the fluid in the central tube is white water in a machine, the fluid in the interlayer tube is the papermaking chemical, and the fluid in the outer tube is white water in a machine or the papermaking chemical; the number of online injectors for the same chemical at the same position is determined according to the size of the sectional area of the pipeline, 1 online injector is used for every 0.1 square meter and is uniformly distributed on the circumference of the main slurry pipeline, and at least one online injector is used for the same chemical at the same position; the papermaking chemicals enter from the interlayer pipe and are primarily mixed with the white water in the machine or the second papermaking chemicals entering from the outer layer pipe, and when the mixed materials enter into the main pulp pipeline, the mixed materials are fully scattered and diluted by the white water in the machine sprayed from the central pipe, so that the purpose of fully mixing the chemicals and the pulp is achieved; the online injector for the papermaking chemicals with the three-layer structure can achieve the full mixing of the chemicals and the slurry so as to fully realize the functional effect of the wet-end chemicals; the central tube spray head is in threaded connection with the central tube, so that the quick-wear parts can be replaced conveniently and quickly; in addition, the whole injector is fixed by the fixing clip arranged at the front end part of the outer layer tube and one end of the fixing head, so that the whole injector is simple and convenient to install and detach;
the online injector for the papermaking chemicals comprises a central tube, a sandwich tube and an outer tube, wherein the sandwich tube is arranged between the central tube and the outer tube, the central tube, the sandwich tube and the outer tube are connected through flange structures, the flange structures are connected through bolts, a central tube nozzle is arranged at the end head of the central tube, a fixing head is arranged at one end, close to the central tube nozzle, of the outer tube, and the fixing head is fixed with the outer tube through a fixing clamp; the end surfaces of the central tube, the interlayer tube and the outer tube which are in contact with each other are sealed by sealing strips; the central pipe spray head is connected with the central pipe through threads; the front end of the fixing head is fixed with a hole formed in the main slurry pipe through welding; the fluid injection ends are provided with a hand valve and a check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550279.9A CN108660857B (en) | 2018-05-31 | 2018-05-31 | Online injector for papermaking chemicals and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550279.9A CN108660857B (en) | 2018-05-31 | 2018-05-31 | Online injector for papermaking chemicals and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108660857A CN108660857A (en) | 2018-10-16 |
| CN108660857B true CN108660857B (en) | 2023-08-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810550279.9A Active CN108660857B (en) | 2018-05-31 | 2018-05-31 | Online injector for papermaking chemicals and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108660857B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5188296A (en) * | 1990-04-02 | 1993-02-23 | Stein Industrie | Pulp dispersion lance |
| CN103608517A (en) * | 2011-04-13 | 2014-02-26 | 沃依特专利有限责任公司 | Method and nozzle arrangement for introducing chemicals and/or additives into a process flow of a production process |
| CN104099131A (en) * | 2013-04-03 | 2014-10-15 | 江苏创新石化有限公司 | Novel oil-slurry scale inhibitor injection device |
| CN204320129U (en) * | 2014-12-18 | 2015-05-13 | 四川烨晶化工装备有限公司 | A kind of spray gun for medium mixing |
| CN105444591A (en) * | 2015-12-01 | 2016-03-30 | 上海交通大学 | Heat exchange jetting device eliminating heat stratification in low-temperature propellant storage box |
| CN108843273A (en) * | 2018-07-02 | 2018-11-20 | 中国石油天然气股份有限公司 | In-casing well flushing device, well flushing pipe column and well flushing method |
-
2018
- 2018-05-31 CN CN201810550279.9A patent/CN108660857B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5188296A (en) * | 1990-04-02 | 1993-02-23 | Stein Industrie | Pulp dispersion lance |
| CN103608517A (en) * | 2011-04-13 | 2014-02-26 | 沃依特专利有限责任公司 | Method and nozzle arrangement for introducing chemicals and/or additives into a process flow of a production process |
| CN104099131A (en) * | 2013-04-03 | 2014-10-15 | 江苏创新石化有限公司 | Novel oil-slurry scale inhibitor injection device |
| CN204320129U (en) * | 2014-12-18 | 2015-05-13 | 四川烨晶化工装备有限公司 | A kind of spray gun for medium mixing |
| CN105444591A (en) * | 2015-12-01 | 2016-03-30 | 上海交通大学 | Heat exchange jetting device eliminating heat stratification in low-temperature propellant storage box |
| CN108843273A (en) * | 2018-07-02 | 2018-11-20 | 中国石油天然气股份有限公司 | In-casing well flushing device, well flushing pipe column and well flushing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108660857A (en) | 2018-10-16 |
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