CN208328539U - A kind of device reducing wet end cleaning blowdown flow rate - Google Patents
A kind of device reducing wet end cleaning blowdown flow rate Download PDFInfo
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- CN208328539U CN208328539U CN201820821523.6U CN201820821523U CN208328539U CN 208328539 U CN208328539 U CN 208328539U CN 201820821523 U CN201820821523 U CN 201820821523U CN 208328539 U CN208328539 U CN 208328539U
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- wet end
- flow rate
- control valve
- pipe
- blowdown flow
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Abstract
The utility model relates to pulp technology for making paper, more particularly to a kind of device of reduction wet end cleaning blowdown flow rate, including paper machine net hole, conveying pipeline and white water chest, the device for reducing wet end cleaning blowdown flow rate further includes drainage conduit and sewage pipe, the feed inlet of the drainage conduit and the feed inlet of sewage pipe are connected to the discharge port of the conveying pipeline, the discharge port in the paper machine net hole is successively connected to the feed inlet of the white water chest via the conveying pipeline with drainage conduit, the drainage conduit is provided with the first control valve, and the sewage pipe is provided with the second control valve.The utility model is respectively communicated with drainage conduit by the conveying pipeline and sewage pipe forms two branches; and drainage conduit is provided with the first control valve; the second control valve is arranged in sewage pipe; when paper machine stop cleaning wet end; the first control valve is closed, the second control valve is opened, sewage is discharged from sewage pipe; it avoids sewage from flowing into white water chest pollution plain boiled water, improves the utilization rate of plain boiled water.
Description
Technical field
The utility model relates to pulp technology for making paper, and in particular to a kind of device for reducing wet end cleaning blowdown flow rate.
Background technique
Mthod of white water from paper making refers to wet end in paper making process, press section, vacuum system dehydration product, containing a large amount of tiny
The dissolubilities colloidal substances such as fiber, inorganic filler suspended matter, chemical assistant.The discharge amount of papermaking process water is very big, if not
It is pocessed reuse and directs out discharge, not only pollute the environment, and a kind of waste to water resource.Mthod of white water from paper making can
Direct reuse rushes in slurry system to paper pulp.
Currently, the plain boiled water in paper machine net hole is directly to be discharged to white water chest by drainage conduit, when paper machine stop cleaning wet end,
The sewage generated when cleaning flows into net hole through paper machine, and sewage can only be discharged into white water chest from net hole by drainage conduit, lead to white water chest
Plain boiled water it is contaminated, if direct reuse rushes in slurry system to paper pulp, will cause the problems such as pulp based paper dusty complexion angstrom is high reduce paper product
Matter, if carrying out sewage treatment to contaminated plain boiled water, high production cost is unfavorable for actual production.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide a kind of reduction nets
The device of blowdown flow rate is cleaned in portion, is respectively communicated with drainage conduit by the conveying pipeline and sewage pipe forms two branches, the discharge
Pipe arranges plain boiled water, the sewage pipe sewerage, and drainage conduit is provided with the first control valve, and the second control valve is arranged in sewage pipe, when
When paper machine is switched on, the first control valve is opened, closes the second control valve, the plain boiled water for cheating paper machine net flows into white water chest；When paper machine stops
When machine cleans wet end, the first control valve is closed, opens the second control valve, sewage is discharged from sewage pipe, avoids sewage from flowing into white
Plain boiled water is polluted in pond, improves the utilization rate of plain boiled water.
The purpose of this utility model is achieved through the following technical solutions: a kind of device reducing wet end cleaning blowdown flow rate, packet
Paper machine net hole, conveying pipeline and white water chest are included, the device for reducing wet end cleaning blowdown flow rate further includes drainage conduit and sewage pipe, institute
The feed inlet of the feed inlet and sewage pipe of stating drainage conduit is connected to the discharge port of the conveying pipeline, the discharging in the paper machine net hole
Mouth is successively connected to the feed inlet of the white water chest via the conveying pipeline with drainage conduit, and the drainage conduit is provided with the first control
The discharge port of valve, first control valve is connected to the feed inlet of the white water chest, and the sewage pipe is provided with the second control valve.
Preferably, the device for reducing wet end cleaning blowdown flow rate further includes DCS controller, and the DCS controller is used for
Control the opening and closing of the first control valve and the second control valve.
Preferably, the drainage conduit is additionally provided with first switch valve, and the sewage pipe is additionally provided with second switch valve.
Preferably, the device for reducing wet end cleaning blowdown flow rate further includes cleaning pipe and the cleaning for being connected to cleaning pipe
Pump, the feed inlet of the cleaning pipe are connected to the discharge port of the white water chest.
Preferably, the cleaning pipe is provided with third switch valve.
Preferably, the device for reducing wet end cleaning blowdown flow rate further includes sewage disposal system, sludge collecting tank and clear
Water pipe, the sludge collecting tank and water pipe are connect with the sewage disposal system, the discharge port of the sewage pipe with it is described
The feed inlet of sewage disposal system is connected to.
Preferably, the bore of the drainage conduit is 380-420mm, and the bore of the sewage pipe is 180-220mm.
Preferably, the device for reducing wet end cleaning blowdown flow rate further includes that the slurry that rushes being connected to white water chest is managed, the punching
Slurry pipe is provided with regulating valve.
The utility model has the beneficial effects that: a kind of device of reduction wet end cleaning blowdown flow rate of the utility model, leads to
It crosses the conveying pipeline and is respectively communicated with drainage conduit and sewage pipe two branches of formation, the drainage conduit arranges plain boiled water, the sewage pipe row
Sewage, and drainage conduit is provided with the first control valve, the second control valve is arranged in sewage pipe, when the booting of paper machine, opens the first control
Valve processed closes the second control valve, and the plain boiled water for cheating paper machine net flows into white water chest；When paper machine stop cleaning wet end, first is closed
Control valve opens the second control valve, and sewage is discharged from sewage pipe, avoids sewage from flowing into white water chest pollution plain boiled water, improves plain boiled water
Utilization rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Appended drawing reference are as follows: 01, paper machine net hole；02, drainage conduit；021, the first control valve；022, first switch valve；03, white
Pond；04, sewage pipe；041, the second control valve；042, second switch valve；05, DCS controller；06, cleaning pipe 06；061,
Three switch valves；07, cleaning pump；08, sewage disposal system；09, sludge collecting tank；10, water pipe；11, punching slurry pipe；111, it adjusts
Valve；12, conveying pipeline.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made into one below with reference to examples and drawings 1
The explanation of step, the content that embodiment refers to not are the restriction to the utility model.
As shown in Figure 1, a kind of device for reducing wet end cleaning blowdown flow rate, including paper machine net hole 01, conveying pipeline 12 and plain boiled water
Pond 03, the device for reducing wet end cleaning blowdown flow rate further includes drainage conduit 02 and sewage pipe 04, the charging of the drainage conduit 02
The feed inlet of mouth and sewage pipe 04 is connected to the discharge port of the conveying pipeline 12, and the discharge port in the paper machine net hole 01 successively passes through
The feed inlet of the white water chest 03 is connected to drainage conduit 02 by the conveying pipeline 12, the drainage conduit 02 is provided with the first control valve
021, the discharge port of first control valve 021 is connected to the feed inlet of the white water chest 03, and the sewage pipe 04 is provided with
Two control valves 041.
The utility model is respectively communicated with drainage conduit 02 by the conveying pipeline 12 and sewage pipe 04 forms two branches, described
02 row's plain boiled water of drainage conduit, 04 sewerage of sewage pipe, and drainage conduit 02 is provided with the first control valve 021, sewage pipe 04 is set
The second control valve 041 is set, when the booting of paper machine, the first control valve 021 is opened, closes the second control valve 041, paper machine net is made to cheat 01
Plain boiled water flow into white water chest 03；When paper machine stop cleaning wet end, the first control valve 021 is closed, opens the second control valve 041,
Sewage is discharged from sewage pipe 04, avoids sewage from flowing into white water chest 03 and pollutes plain boiled water, improve the utilization rate of plain boiled water.
The device for reducing wet end cleaning blowdown flow rate further includes DCS controller 05, and the DCS controller 05 is for controlling
The opening and closing of first control valve 021 and the second control valve 041.
In the present embodiment, the opening and closing that the first control valve 021 and the second control valve 041 are controlled by DCS controller 05, when
When paper machine is switched on, DCS controller 05 controls the first control valve 021 and opens, and closes the second control valve 041, and paper machine net is made to cheat 01
Plain boiled water flow into white water chest 03；When paper machine stop cleaning wet end, DCS controller 05 controls the first control valve 021 and closes, and beats
The second control valve 041 is opened, sewage is discharged from sewage pipe 04, avoids sewage from flowing into white water chest 03 and pollutes plain boiled water, improve plain boiled water
Utilization rate realizes automatic control and management, reduces the amount of labour of worker, improve automatization level.The DCS controller 05 divides
It is not electrically connected with the first control valve 021 and the second control valve 041.
The drainage conduit 02 is additionally provided with first switch valve 022, and the sewage pipe 04 is additionally provided with second switch valve 042.
In the present embodiment, when the first control valve 021 or the failure of the second control valve 041 need repairing, using first switch
Valve 022 and second switch valve 042 replace the work of the first control valve 021 and the second control valve 041, make the reduction of the utility model
The device of wet end cleaning blowdown flow rate can be avoided leading to production disruption because of failure, be caused economic loss with continuous work.In this implementation
In example, first switch valve 022 and second switch valve 042 are used and are manually controlled；In other embodiments, it can be controlled using DCS
The opening and closing of device 05 control first switch valve 022 and second switch valve 042.
The device for reducing wet end cleaning blowdown flow rate further includes cleaning pipe 06 and the cleaning pump for being connected to cleaning pipe 06
07, the feed inlet of the cleaning pipe 06 is connected to the discharge port of the white water chest 03.
When needing to clean wet end, the cleaning pump 07 pumps the plain boiled water of white water chest 03 to the paper via cleaning pipe 06
Machine wet end cleans the web part of paper machine using plain boiled water, improves plain boiled water utilization rate.
The cleaning pipe 06 is provided with third switch valve 061.
In the present embodiment, the third switch valve 061 controls the on-off of the cleaning pipe 06, avoids not needing to clean
Plain boiled water flows into web part of paper machine when wet end, influences to produce.Further, the third switch valve 061 be set to cleaning pump 07 with it is white
Between pond 03, avoids the plain boiled water when not needing cleaning wet end from flowing into cleaning pump 07, cleaning pump 07 is caused to corrode.
The device for reducing wet end cleaning blowdown flow rate further includes sewage disposal system 08, sludge collecting tank 09 and water pipe
10, the sludge collecting tank 09 and water pipe 10 are connect with the sewage disposal system 08, the discharge port of the sewage pipe 04
It is connected to the feed inlet of the sewage disposal system 08.
In the present embodiment, the sewage that the sewage pipe 04 is discharged flows into the sewage disposal system 08, through sewage treatment
After the processing of system 08, the clear water of discharge is flowed out via water pipe 10, can be entered paper pulp and be rushed slurry system or other paper mill water systems,
Improve the utilization rate of water resource；The sludge of discharge enters the processing of sludge collecting tank 09, reduces waste water and discharges outward.
The bore of the drainage conduit 02 is 380-420mm, and the bore of the sewage pipe 04 is 180-220mm.
In the present embodiment, the drainage conduit 02 is limited to 380-420mm, and plain boiled water is made quickly to circulate, the sewage pipe 04
Bore be limited to 180-220mm, avoid sewage block pipeline.Further, the bore of the drainage conduit 02 is
400mm, the bore of the sewage pipe 04 are 200mm.
The device for reducing wet end cleaning blowdown flow rate further include be connected to white water chest 03 rush slurry pipe 11, the punching, which is starched, manages
11 are provided with regulating valve 111.
In the present embodiment, the plain boiled water of the white water chest 03 is flowed out by punching slurry pipe 11, can be entered paper pulp and be rushed slurry system
And with paper pulp mixed diluting paper pulp, improve the utilization rate of plain boiled water, the regulating valve 111 is used to adjust the flow of plain boiled water, avoids white
Water is excessive by the flow that punching slurry pipe 11 flows out, and influences the paper delivery quality that paper pulp rushes slurry system.
The overall operation mode of the utility model: when the booting of paper machine, first switch valve 022, second switch valve 042 and tune
It is in the open state to save valve 111, third switch valve 061 is in closed state, and DCS controller 05 controls the first control valve 021 and opens
It opens, and closes the second control valve 041, the plain boiled water in paper machine net hole 01 is made to flow into white water chest 03, plain boiled water is flowed out via punching slurry pipe 11；When
When paper machine stop cleaning, third switch valve 061 is opened, DCS controller 05 controls the first control valve 021 and closes, and opens second
The plain boiled water of white water chest 03 is pumped via cleaning pipe 06 to the web part of paper machine, is carried out clear by control valve 041, the cleaning pump 07
It washes, sewage is discharged from sewage pipe 04, the sewage that the sewage pipe 04 is discharged flows into the sewage disposal system 08, at sewage
After the processing of reason system 08, the clear water of discharge is flowed out via water pipe 10, can be entered paper pulp and be rushed slurry system or other paper grade (stock) water systems
System, improves the utilization rate of water resource；The sludge of discharge enters the processing of sludge collecting tank 09, reduces waste water and discharges outward.Stop every time
The cleaning of machine technique can save 200 tons of discharge of wastewater, can save 3 hours technique scavenging periods, can increase about 10 tons of qualified paper；
About 400 tons of discharge of wastewater and treating capacities can be monthly saved, 6 hours technique scavenging periods can be monthly saved, can monthly be increased about
20 tons of qualified paper.
Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides
Formula realizes that any obvious replacement is in the protection model of the utility model without departing from the concept of the premise utility
Within enclosing.
Claims (8)
1. a kind of device for reducing wet end cleaning blowdown flow rate, including paper machine net hole, conveying pipeline and white water chest, it is characterised in that: institute
It further includes drainage conduit and sewage pipe that stating, which reduces the device of wet end cleaning blowdown flow rate, the feed inlet of the drainage conduit and sewage pipe into
Material mouth is connected to the discharge port of the conveying pipeline, and the discharge port in the paper machine net hole is successively via the conveying pipeline and drainage conduit
It is connected to the feed inlet of the white water chest, the drainage conduit is provided with the first control valve, the discharge port of first control valve and institute
The feed inlet connection of white water chest is stated, the sewage pipe is provided with the second control valve.
2. a kind of device for reducing wet end cleaning blowdown flow rate according to claim 1, it is characterised in that: the reduction wet end
The device for cleaning blowdown flow rate further includes DCS controller, and the DCS controller is used to control the first control valve and the second control valve
Opening and closing.
3. a kind of device for reducing wet end cleaning blowdown flow rate according to claim 1, it is characterised in that: the drainage conduit is also
It is provided with first switch valve, the sewage pipe is additionally provided with second switch valve.
4. a kind of device for reducing wet end cleaning blowdown flow rate according to claim 1, it is characterised in that: the reduction wet end
The device of cleaning blowdown flow rate further includes cleaning pipe and the cleaning pump for being connected to cleaning pipe, the feed inlet of the cleaning pipe with it is described
The discharge port of white water chest is connected to.
5. a kind of device for reducing wet end cleaning blowdown flow rate according to claim 4, it is characterised in that: the cleaning pipe is set
It is equipped with third switch valve.
6. a kind of device for reducing wet end cleaning blowdown flow rate according to claim 1, it is characterised in that: the reduction wet end
The device of cleaning blowdown flow rate further includes sewage disposal system, sludge collecting tank and water pipe, the sludge collecting tank and water pipe
It is connect with the sewage disposal system, the discharge port of the sewage pipe is connected to the feed inlet of the sewage disposal system.
7. a kind of device for reducing wet end cleaning blowdown flow rate according to claim 1, it is characterised in that: the drainage conduit
Bore is 380-420mm, and the bore of the sewage pipe is 180-220mm.
8. a kind of device for reducing wet end cleaning blowdown flow rate according to claim 1, it is characterised in that: the reduction wet end
The device of cleaning blowdown flow rate further includes that the slurry that rushes being connected to white water chest is managed, and the punching slurry pipe is provided with regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820821523.6U CN208328539U (en) | 2018-05-29 | 2018-05-29 | A kind of device reducing wet end cleaning blowdown flow rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820821523.6U CN208328539U (en) | 2018-05-29 | 2018-05-29 | A kind of device reducing wet end cleaning blowdown flow rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208328539U true CN208328539U (en) | 2019-01-04 |
Family
ID=64772111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820821523.6U Expired - Fee Related CN208328539U (en) | 2018-05-29 | 2018-05-29 | A kind of device reducing wet end cleaning blowdown flow rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208328539U (en) |
-
2018
- 2018-05-29 CN CN201820821523.6U patent/CN208328539U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 |