CN104986845B - White lime dosing system in a kind of water treatment system - Google Patents
White lime dosing system in a kind of water treatment system Download PDFInfo
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- CN104986845B CN104986845B CN201510387129.7A CN201510387129A CN104986845B CN 104986845 B CN104986845 B CN 104986845B CN 201510387129 A CN201510387129 A CN 201510387129A CN 104986845 B CN104986845 B CN 104986845B
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- lime
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Abstract
White lime dosing system in a kind of water treatment system, including lime powder bin, the lower end exit of lime powder bin is provided with feeding machine, feeding machine is connected with metering conveyor, pipeline of the metering conveyor through transparent material is connected with supply device, supply device, which is connected with lime milk solution case, lime milk solution case, is provided with automatic sand draining valve, and lime milk solution case adds pond through lime milk dosing pipe and milk of lime and is connected.Due to the pipeline using transparent material in the present invention, thus can overall process observation material conveying and mobility status, once finding to block, convenient processing can be dredged in time., being capable of timing automatic sediment outflow due to setting automatic sand draining valve；Labor strength and the alluvial blockage problem caused by sand grains are reduced, and the lime drug concentration that lime chemicals dosing plant is prepared keeps stable, and error is no more than ± 0.5%, ensure that the control of toss area pH value is accurate, error is no more than ± 0.3.
Description
Technical field
The invention belongs to water-treatment technology field, and in particular to white lime dosing system in a kind of water treatment system.
Background technology
White lime (scientific name calcium hydroxide, chemical formula Ca (OH)2) it is the medicament commonly used in water treatment system, it is widely used in
The process fields such as industrial water supply, municipal middle water and all kinds of waste water, and recycled water advanced treatment, desalination pretreatment, at desulfurization wastewater
In the techniques such as reason.In the water treatment system for adding white lime, the quality of outlet effect adds rear pH depending on milk of lime and controls essence
The continuous running situation of true degree and lime medicine machine.
Traditional dry method lime medicine system typically uses star-shaped feeding machine, by way of mechanical vibrator and helical feed
Pulverized limestone is delivered to lime milk solution case.Because a large amount of steam produced in milk of lime process for preparation rise along batcher extremely
Powder cabin bottom, blanking pipe is easily blocked, and causes lime error in dipping big；Noise is very big during mechanical vibrator, and flying dust is tight
Weight, working environment is severe.In addition, existing milk of lime dosing method is directly added using Pulp pump into pond mostly, lime
Metering is chain with carrying out water-carrying capacity, causes pH feedbacks delayed, adjusts not in time.PH fluctuation ranges are big when adding, and control is inaccurate；
Drug feeding pipeline uses Hard link, lacks pipe flushing system, and pipeline blockage frequency is high.
, it is necessary to develop a kind of new lime medicine system for the dosing of water treatment system.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, it is an object of the invention to provide white lime in a kind of water treatment system
Dosing system, can improve reliability and the precision that lime metering and pH are controlled using the system, reduce drug feeding pipeline and block
Frequency, the security to improving whole water treatment system.
To achieve the above object, the present invention is adopted the following technical scheme that：
White lime dosing system in a kind of water treatment system, including lime powder bin, the lower end exit of lime powder bin are set
There is feeding machine, feeding machine is connected with metering conveyor, and pipeline of the metering conveyor through transparent material is connected with supply device, supply device
It is connected with lime milk solution case, lime milk solution case and is provided with automatic sand draining valve, lime milk solution case is through lime milk dosing
Pipe adds pond with milk of lime and is connected.
Sack cleaner and level-sensing device are provided with the lime powder bin.
Anti-blocking detector is provided with the pipeline.
Mixer and fluid level transmitter are additionally provided with the lime milk solution case.
The milk of lime circulating pump is Pulp pump.
Pneumatic adjusting ball valve is provided with the lime milk dosing pipe.
Pneumatic adjusting ball valve is that pneumatic ceramic adjusts ball valve.
The metering conveyor is the metering conveyor of spiral.
The milk of lime, which is added, is provided with pH meter in pond.
The lime milk solution case is also connected by milk of lime return duct with lime milk dosing pipe；Lime milk solution case is
2.
Compared with prior art, the device have the advantages that：Due to the pipeline using transparent material, institute in the present invention
With can overall process observation material conveying and mobility status, once finding to block, convenient processing can be dredged in time.Due to setting certainly
Dynamic sediment outflow valve, being capable of timing automatic sediment outflow；Labor strength and the alluvial blockage problem caused by sand grains are reduced, and
The lime drug concentration that lime chemicals dosing plant is prepared keeps stable, and error is no more than ± 0.5%, ensure that toss area pH value control
System is accurate, and error is no more than ± 0.3.
Further, the feeding machine of lime blanking system is broken arch scraping blade feeding machine, and using flexible blades broken arch, blanking is steady
It is fixed uniform.Due to not needing mechanical vibrator broken arch, it is to avoid vibrating noise and flying dust problem.
Further, the automatic gauge that can realize pulverized limestone by the metering conveyor and follow-up supply device of spiral is thrown
Material, metering is accurate so that the mass concentration of milk of lime is stably maintained in 0.5%.
Further, pneumatic regulation ball uses Wear-resistant ceramic ball valve, and the accuracy of valve opening is not by milk of lime particle
Influence, it is ensured that the stability that milk of lime is added, and extend the service life of relevant device.
Further, by using transparent pipeline, milk of lime high-flow backflow and pipeline auto-flushing mode, inwall light
Sliding, resistance is small, and lime is not easy deposition, and Flow of Goods and Materials situation is easy to observe and safeguarded.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is depositing reservoir mixed zone pH value testing result figure.
In figure, 1- lime powder bins；2- sack cleaners；3- level-sensing devices；4- broken arch scraping blade feeding machines；5- metering conveyors；
The anti-blocking detectors of 6-；7- pipelines；8- supply devices；9- mixers；10- lime milk solution casees；11- fluid level transmitters；12- is arranged automatically
Sand valve；13- milk of lime circulating pumps；14- Pneumatic adjusting ball valves；15-pH is counted, and 16- milk of limes add pond.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, white lime dosing system in water treatment system of the present invention, including lime powder bin 1 is set on lime powder bin 1
Sack cleaner 2 and level-sensing device 3 are equipped with, the lower end exit of lime powder bin 1 is provided with feeding machine 4, and feeding machine 4 is connected with metering
Conveyer 5, pipeline 7 of the metering conveyor 5 through transparent PU materials, which is connected with supply device 8, and pipeline 7, is provided with anti-blocking spy
Device 6 is surveyed, supply device 8, which is connected with lime milk solution case 10, lime milk solution case 10, is provided with mixer 9, fluid level transmitter 11
And automatic sand draining valve 12, lime milk solution case 10 adds pond through lime milk dosing pipe and milk of lime and is connected, milk of lime
Add and pH meter 15 is provided with pond, Pneumatic adjusting ball valve 14, and Pneumatic adjusting ball valve 14 are provided with lime milk dosing pipe
For pneumatic ceramic adjust ball valve, with it is wear-resisting the characteristics of, the accuracy of valve opening is not influenceed by milk of lime particle, it is ensured that
The stability that milk of lime is added, and extend the service life of relevant device.
The feeding machine 4 is broken arch scraping blade feeding machine, and milk of lime circulating pump 13 uses Pulp pump.
Milk of lime dosage is controlled by adjusting the aperture of Pneumatic adjusting ball valve 14.Pneumatic adjusting ball valve 14 is located at lime
Newborn toss area, it is ensured that the promptness of signal feedback.In Lime-Injecting pond pH meter 15 with the aperture of Pneumatic adjusting ball valve 14 is chain does
PID is adjusted, and valve opening does double PID adjustment with carrying out pH in water-carrying capacity and pond, and pH value can control ± 0.3 scope in setting value,
So that Lime-Injecting precisely, it is reliable, it is ensured that lime adds effect.
Lime blanking system uses flexible blades broken arch in the present invention so that blanking stable and uniform.Due to not needing machinery
Rapping broken arch, it is to avoid vibrating noise and flying dust problem.Stone can be realized by the metering conveyor and follow-up supply device of spiral
The automatic gauge of ashes feeds intake, and metering is accurate, and the mass concentration of milk of lime is stably maintained in 0.5%.Pass through caliber and spiral
Larger supply device broken line add avoid steam rise make the problem of lime in powder cabin and feeder channel gets damp.Lime blanking
Using transparent flexible pipe, it is easy to observe lime blanking process situation.General lower of stopping state need to beat flexible tube, easy access
And maintenance.Lime milk solution case sets automatic sand draining valve, timing automatic sediment outflow；Reduce labor strength and because sand grains is made
Into alluvial blockage problem.By using PU transparent pipelines, milk of lime high-flow backflow and pipeline auto-flushing mode, inwall light
Sliding, resistance is small, and lime is not easy deposition, and Flow of Goods and Materials situation is easy to observe and safeguarded.The present invention is using two sets of lime dosing dresses
Alternate run is put, it is another set of to put into operation during a set of preparing lime milk；Mixer remains fortune in two lime milk solution casees
Turn state, realize the continuous of milk of lime and add.Milk of lime dosage is controlled by adjusting the aperture of Pneumatic adjusting ball valve.Gas
Dynamic regulation ball valve is located at milk of lime toss area, it is ensured that the promptness of signal feedback.PH meter and pneumatic regulation in Lime-Injecting pond
Ball valve aperture is chain to do PID regulations, and valve opening does double PID adjustment with carrying out pH in water-carrying capacity and pond, and pH value can be controlled in setting
± 0.3 scope of value so that Lime-Injecting precisely, it is reliable, it is ensured that lime adds effect.Pneumatic adjusting ball valve is using wear-resisting
Ceramic ball valve, the accuracy of valve opening is not influenceed by milk of lime particle, it is ensured that the stability that milk of lime is added, and is extended
The service life of relevant device.
Conventional lime medicine system noise, flying dust and lime metering can be efficiently solved by the system inaccurate
Really, dosage control is inaccurate and steam gets damp the problems such as causing pipeline blockage, and the lime medicine that lime chemicals dosing plant is prepared
Agent concentration keeps stable, and error is no more than ± 0.5%.In addition, the control of toss area pH value is accurate, error is no more than ± 0.3, passes through
The pipeline of transparent material, can overall process observation material conveying and mobility status, once finding to block, can dredge in time at convenient
Reason.
Illustrated below by a specific embodiment.
The newborn dosing system design data of certain power plant's white lime is as follows：
Design 2 × 1200m of water3/h；The control of toss area pH value is designed 10.30, milk of lime prepares mass concentration and is
5%, make up a prescription industry water used；
Using a kind of new milk of lime dosing system, type selection is as follows：
Lime powder bin volume V=80m3, metering conveyor Q=1000kg/h, milk of lime pump flow Q=15m3/ h, is raised
Journey H=25m.Lime milk solution case dischargeable capacity V=15m3, lime milk solution case is provided with mixer, fluid level transmitter and automatic
Sediment outflow valve 12 etc..
When milk of lime is configured, the water inlet automatic valve on lime milk solution case 10 is first turned on, while lime powder bin 1 is broken
Arch scraping blade feeding machine, metering conveyor 5, supply device 8 are started working.The concentration of milk of lime is prepared when the pulverized limestone of conveying reaches
When, close broken arch scraping blade feeding machine, metering conveyor 5, supply device 8；When water level reaches a high position as defined in lime milk solution case 10
When, close water inlet automatic valve.Milk of lime preparation work is completed.Mixer 9 on this process lime milk solution case is constantly in
In work.
Milk of lime circulating pump 13 uses Pulp pump, 2 milk of lime circulating pump alternate runs.When a lime milk solution case reaches
During to low liquid level, this supporting milk of lime circulation pump shutdown, supporting Lime-Injecting system blanking starts to prepare milk of lime, separately
An outer milk of lime circulates pump startup.Such cycle alternation.
Lime milk dosing uses the flow for decupling chemical feeding points dosage in lime milk solution case interior circulation, and sets pipeline
Rinse, to prevent the deposition in lime pipeline from blocking.The dosage of milk of lime is controlled by the aperture of Pneumatic adjusting ball valve 14,
The vicinity that Pneumatic adjusting ball valve is located at toss area ensure that the promptness that signal feeds back, and the wear-resistant of Pneumatic adjusting ball valve maintains
Ball valve is chain does PID regulations for the regulation of pH meter 15 and pneumatic ceramic in the stability that milk of lime is added, Lime-Injecting pond.
Using this new lime medicine system and addition method, set and control depositing reservoir mixed zone pH value as 10.3, it is clear
Qing Chi mixed zones pH value testing result is shown in Fig. 2.
Figure it is seen that the control of toss area pH value is accurate, error is no more than ± 0.3.
Claims (7)
1. white lime dosing system in a kind of water treatment system, it is characterised in that including lime powder bin (1), lime powder bin (1)
Lower end exit is provided with feeding machine (4), and feeding machine (4) is connected with metering conveyor (5), and metering conveyor (5) is through transparent material
The pipeline (7) of matter is connected with supply device (8), and supply device (8) is connected with lime milk solution case (10), lime milk solution case (10)
Automatic sand draining valve (12) is provided with, lime milk solution case (10) adds pond (16) through lime milk dosing pipe and milk of lime and is connected
It is logical；Wherein, feeding machine (4) is broken arch scraping blade feeding machine；Pneumatic adjusting ball valve (14) is provided with the lime milk dosing pipe, and
And Pneumatic adjusting ball valve (14) is that pneumatic ceramic adjusts ball valve；
The lime milk solution case (10) is also connected by milk of lime return duct with lime milk dosing pipe；
The milk of lime adds in pond (16) and is provided with pH meter (15)；
Milk of lime dosage is controlled by adjusting the aperture of Pneumatic adjusting ball valve (14)；Pneumatic adjusting ball valve (14) is located at lime
Newborn toss area, it is ensured that the promptness of signal feedback；PH meter (15) connects with Pneumatic adjusting ball valve (14) aperture in Lime-Injecting pond
Lock does PID regulations, and valve opening does double PID adjustment with carrying out pH in water-carrying capacity and pond, and pH value can control ± 0.3 model in setting value
Enclose so that Lime-Injecting is accurate.
2. white lime dosing system in a kind of water treatment system according to claim 1, it is characterised in that the pulverized limestone
Sack cleaner (2) and level-sensing device (3) are provided with storehouse (1).
3. white lime dosing system in a kind of water treatment system according to claim 1, it is characterised in that the pipeline
(7) anti-blocking detector (6) is provided with.
4. white lime dosing system in a kind of water treatment system according to claim 1, it is characterised in that the milk of lime
Mixer (9) and fluid level transmitter (11) are additionally provided with liquor box (10).
5. white lime dosing system in a kind of water treatment system according to claim 1, it is characterised in that the milk of lime
Milk of lime circulating pump (13) is additionally provided with chemical feed pipe, milk of lime circulating pump (13) is Pulp pump.
6. white lime dosing system in a kind of water treatment system according to claim 1, it is characterised in that the metering is defeated
Send the metering conveyor that machine (5) is spiral.
7. white lime dosing system in a kind of water treatment system according to claim 1, it is characterised in that lime milk solution
Case (10) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387129.7A CN104986845B (en) | 2015-07-03 | 2015-07-03 | White lime dosing system in a kind of water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387129.7A CN104986845B (en) | 2015-07-03 | 2015-07-03 | White lime dosing system in a kind of water treatment system |
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| Publication Number | Publication Date |
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| CN104986845A CN104986845A (en) | 2015-10-21 |
| CN104986845B true CN104986845B (en) | 2017-09-12 |
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ID=54298772
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510387129.7A Expired - Fee Related CN104986845B (en) | 2015-07-03 | 2015-07-03 | White lime dosing system in a kind of water treatment system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140023A (en) * | 2016-08-30 | 2016-11-23 | 宜兴市中发水处理环保设备有限公司 | A kind of lime throwing device |
| CN108275380A (en) * | 2018-03-15 | 2018-07-13 | 西安西热水务环保有限公司 | A kind of block-resistant type disturbance formula granular material metering and conveying device |
| CN113385070A (en) * | 2021-04-21 | 2021-09-14 | 铜陵有色金属集团股份有限公司 | Double-system lime emulsification workshop for emulsion production and working method thereof |
| CN114082313A (en) * | 2021-12-08 | 2022-02-25 | 碟石环保设备河北有限公司 | PAM liquid medicine preparation method and control system |
| CN114682128B (en) * | 2022-04-28 | 2023-05-16 | 华能陇东能源有限责任公司 | Automatic liquid preparation and feeding system for heavy medium particles |
| CN114956284B (en) * | 2022-05-26 | 2023-11-14 | 华能陇东能源有限责任公司 | Automatic dry-method heavy medium powder feeding system and method based on double-fed adjustment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201148384Y (en) * | 2008-01-18 | 2008-11-12 | 上海德源水处理工程有限公司 | Powdery lime automatic metering and preparing apparatus |
| CN202284157U (en) * | 2011-10-08 | 2012-06-27 | 北京中电加美环境工程技术有限责任公司 | Wet process metering system for lime powder |
| CN204778995U (en) * | 2015-07-03 | 2015-11-18 | 西安西热水务环保有限公司 | White lime is thrown with system among water processing system |
-
2015
- 2015-07-03 CN CN201510387129.7A patent/CN104986845B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201148384Y (en) * | 2008-01-18 | 2008-11-12 | 上海德源水处理工程有限公司 | Powdery lime automatic metering and preparing apparatus |
| CN202284157U (en) * | 2011-10-08 | 2012-06-27 | 北京中电加美环境工程技术有限责任公司 | Wet process metering system for lime powder |
| CN204778995U (en) * | 2015-07-03 | 2015-11-18 | 西安西热水务环保有限公司 | White lime is thrown with system among water processing system |
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| CN104986845A (en) | 2015-10-21 |
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Granted publication date: 20170912 Termination date: 20180703 |