CN204778995U - White lime is thrown with system among water processing system - Google Patents
White lime is thrown with system among water processing system Download PDFInfo
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- CN204778995U CN204778995U CN201520475885.0U CN201520475885U CN204778995U CN 204778995 U CN204778995 U CN 204778995U CN 201520475885 U CN201520475885 U CN 201520475885U CN 204778995 U CN204778995 U CN 204778995U
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- lime
- milk
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- treatment system
- dosing
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Abstract
The utility model provides a white lime is thrown with system among water processing system, includes lime powder storehouse, and the lower extreme exit in lime powder storehouse is provided with the feeding machine, and the feeding machine is connected with the measurement conveyer, and the measurement conveyer is thrown with the ware through transparent material's pipe connection, throws to be connected with lime breast solution tank with the ware, is provided with automatic sediment outflow valve on the lime breast solution tank, and lime breast solution tank adds the pencil through the lime breast and throws with the lime breast and be linked together with the pond. The utility model discloses in owing to adopt transparent material's pipeline, so can the overall process survey the material carry with the condition of flow, in case the discovery is blockked up, mediation in time is convenient to be handled. Owing to set up automatic sediment outflow valve, regularly automatic sediment outflow, the problem is blockked up in the siltation that has reduced workman intensity of labour and caused because of the sand grain to the lime medicament concentration that lime charge device prepared remains stable, and the error can guarantee to throw the pH value control accuracy of adding some points no longer than 0.5%, and the error is no longer than 0.3.
Description
Technical field
The utility model belongs to water-treatment technology field, is specifically related to white lime dosing system in a kind of water treatment system.
Background technology
White lime (formal name used at school calcium hydroxide, chemical formula Ca (OH)
2) be medicament conventional in water treatment system, be widely used in the process field such as industrial water supply, municipal middle water and all kinds of waste water, and in the technique such as recycled water advanced treatment, desalination pre-treatment, desulfurization wastewater process.Add in the water treatment system of white lime, the quality of outlet effect depends on that milk of lime adds the continuous running condition that rear pH controls levels of precision and lime medicine machine.
Traditional dry method lime medicine system generally adopts star-shaped feeding machine, by the mode of mechanical vibrator and helical feed, lime powder is delivered to lime milk solution case.Because a large amount of steam produced in milk of lime process for preparation rise bottom feeding machine to powder storehouse, blanking pipe is easily blocked, causes lime error in dipping large; In mechanical vibrator process, noise is very large, and flying dust is serious, work under bad environment.In addition, existing milk of lime dosing method adopts Pulp pump to add directly in pond mostly, and lime metering is only with to carry out discharge chain, and cause pH to feed back delayed, adjustment not in time.When adding, pH fluctuation range is large, controls out of true; Drug feeding pipeline adopts Hard link, and lack pipe flushing system, line clogging frequency is high.
For the dosing of water treatment system, need to develop a kind of novel lime medicine system.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide white lime dosing system in a kind of water treatment system, adopt this system can improve reliability and the precision of lime metering and pH control, reduce drug feeding pipeline blocking frequency, to the security improving whole water treatment system.
For achieving the above object, the utility model adopts following technical scheme:
White lime dosing system in a kind of water treatment system, comprise lime powder bin, the exit, lower end of lime powder bin is provided with feeding machine, feeding machine is connected with metering conveyor, metering conveyor is connected with supply device through the pipeline of transparent material, supply device 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.
Described lime powder bin is provided with sack cleaner and level gage.
Described pipeline is provided with anti-blocking detector.
Described lime milk solution case is also provided with stirrer and fluid level transmitter.
Described milk of lime recycle pump is Pulp pump.
Described lime milk dosing pipe is provided with Pneumatic adjusting ball valve.
Pneumatic adjusting ball valve is that pneumatic ceramic regulates ball valve.
Described metering conveyor is the metering conveyor of spiral.
Described milk of lime adds in pond and is provided with pH meter.
Described lime milk solution case is also connected with lime milk dosing pipe by milk of lime return line; Lime milk solution case is 2.
Compared with prior art, the beneficial effect that the utility model has: owing to adopting the pipeline of transparent material in the utility model, so whole process can observe mass transport and mobility status, once find blocking, can dredge convenient process in time.Owing to arranging automatic sand draining valve, can timing automatic sediment outflow; The alluvial blockage problem decreasing labor strength and cause because of sand grains, and the lime drug concentration of lime chemicals dosing plant preparation keeps stable, error is no more than ± 0.5%, can ensure that toss area pH value controls accurately, and error is no more than ± and 0.3.
Further, the feeding machine of lime blanking system is broken arch scraping blade feeding machine, adopts flexible blades broken arch, blanking stable and uniform.Owing to not needing mechanical vibrator broken arch, avoid vibrating noise and flying dust problem.
Further, the automatic gauge that can be realized lime powder by the metering conveyor of spiral and follow-up supply device is fed intake, and metering accurately, makes the mass concentration stable maintenance of milk of lime in 0.5%.
Further, pneumatic adjustment ball adopts Wear-resistant ceramic ball valve, and the tolerance range of valve opening, not by the impact of milk of lime particle, ensure that the stability that milk of lime adds, and extends the work-ing life of relevant device.
Further, by adopting transparent pipeline, milk of lime high-flow backflow and pipeline auto-flushing mode, inner wall smooth, resistance is little, and lime is not easy deposition, and Flow of Goods and Materials situation is convenient to observe and safeguard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is settling pond mixing zone pH value detected result figure.
In figure, 1-lime powder bin; 2-sack cleaner; 3-level gage; 4-broken arch scraping blade feeding machine; 5-metering conveyor; The anti-blocking detector of 6-; 7-pipeline; 8-supply device; 9-stirrer; 10-lime milk solution case; 11-fluid level transmitter; 12-automatic sand draining valve; 13-milk of lime recycle pump; 14-Pneumatic adjusting ball valve; 15-pH counts, and 16-milk of lime adds pond.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1, white lime dosing system in the utility model water treatment system, comprise lime powder bin 1, lime powder bin 1 is provided with sack cleaner 2 and level gage 3, the exit, lower end of lime powder bin 1 is provided with feeding machine 4, feeding machine 4 is connected with metering conveyor 5, metering conveyor 5 is connected with supply device 8 through the pipeline 7 of transparent PU material, and pipeline 7 is provided with anti-blocking detector 6, supply device 8 is connected with lime milk solution case 10, lime milk solution case 10 is provided with stirrer 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 adds in pond and is provided with pH meter 15, lime milk dosing pipe is provided with Pneumatic adjusting ball valve 14, and Pneumatic adjusting ball valve 14 is pneumatic ceramic adjustment ball valve, there is wear-resisting feature, the tolerance range of valve opening is not by the impact of milk of lime particle, ensure that the stability that milk of lime adds, and extend the work-ing life of relevant device.
Described feeding machine 4 is broken arch scraping blade feeding machine, and milk of lime recycle pump 13 adopts Pulp pump.
Milk of lime dosage is controlled by the aperture adjusting Pneumatic adjusting ball valve 14.Pneumatic adjusting ball valve 14 is located at milk of lime toss area, ensure that the promptness of signal feedback.In Lime-Injecting pond, pH meter 15 and the chain PID that is of Pneumatic adjusting ball valve 14 aperture regulate, valve opening with carry out pH in discharge and pond and do double PID adjustment, pH value can control set(ting)value ± 0.3 scope, make Lime-Injecting precisely, reliable, what ensure that lime adds effect.
In the utility model, lime blanking system adopts flexible blades broken arch, makes blanking stable and uniform.Owing to not needing mechanical vibrator broken arch, avoid vibrating noise and flying dust problem.The automatic gauge that can be realized lime powder by the metering conveyor of spiral and follow-up supply device is fed intake, and accurately, the mass concentration stable maintenance of milk of lime is in 0.5% in metering.Added by caliber and the larger supply device broken line of spiral and avoid steam and to rise the problem that the lime in powder storehouse and feeder channel is got damp.Lime blanking uses transparent flexible pipe, is convenient to observe lime blanking process situation.Lower of general stopping state need beat flexible tube, easy access and maintenance.Lime milk solution case arranges automatic sand draining valve, timing automatic sediment outflow; The alluvial blockage problem decreasing labor strength and cause because of sand grains.By adopting PU transparent pipeline, milk of lime high-flow backflow and pipeline auto-flushing mode, inner wall smooth, resistance is little, and lime is not easy deposition, and Flow of Goods and Materials situation is convenient to observe and safeguard.The utility model adopts two cover lime chemicals dosing plant alternate runs, during a set of preparing lime milk, another set ofly to put into operation; In two milk of lime liquor boxs, stirrer remains running condition, achieves adding continuously of milk of lime.Milk of lime dosage is controlled by the aperture adjusting Pneumatic adjusting ball valve.Pneumatic adjusting ball valve is located at milk of lime toss area, ensure that the promptness of signal feedback.In Lime-Injecting pond, pH meter and the chain PID that is of Pneumatic adjusting ball valve aperture regulate, valve opening with carry out pH in discharge and pond and do double PID adjustment, pH value can control set(ting)value ± 0.3 scope, make Lime-Injecting precisely, reliable, what ensure that lime adds effect.Pneumatic adjusting ball valve adopts Wear-resistant ceramic ball valve, and the tolerance range of valve opening, not by the impact of milk of lime particle, ensure that the stability that milk of lime adds, and extends the work-ing life of relevant device.
Inaccurate, the dosage of conventional lime medicine system noise, flying dust and lime metering can be efficiently solved by this system to control out of true and steam and to get damp problems such as causing line clogging, and the lime drug concentration of lime chemicals dosing plant preparation keeps stable, error is no more than ± and 0.5%.In addition, toss area pH value controls accurately, and error is no more than ± 0.3, by the pipeline of transparent material, can whole process observation mass transport and mobility status, and once find blocking, convenient process can be dredged in time.
Be described below by a specific embodiment.
Certain power plant's white lime breast dosing system design data is as follows:
Designed water 2 × 1200m
3/ h; Design toss area pH value controls 10.30, and milk of lime preparation mass concentration is 5%, and make up a prescription service water used;
Adopt a kind of novel milk of lime dosing system, type selection is as follows:
Lime powder bin volume V=80m
3, metering conveyor Q=1000kg/h, milk of lime pump flow Q=15m
3/ h, lift H=25m.Lime milk solution case useful volume V=15m
3, lime milk solution case is provided with stirrer, fluid level transmitter and automatic sand draining valve 12 etc.
During milk of lime configuration, first open the water inlet automatic valve on lime milk solution case 10, simultaneously the broken arch scraping blade feeding machine of lime powder bin 1, metering conveyor 5, supply device 8 are started working.When the lime powder carried reaches the concentration preparing milk of lime, close broken arch scraping blade feeding machine, metering conveyor 5, supply device 8; When water level reach lime milk solution case 10 specify high-order time, close water inlet automatic valve.Milk of lime preparation work completes.Stirrer 9 on this process lime milk solution case is in work always.
Milk of lime recycle pump 13 adopts Pulp pump, 2 milk of lime recycle pump alternate runs.When a milk of lime liquor box reaches low liquid level, this supporting milk of lime recycle pump is stopped transport, and supporting Lime-Injecting system blanking starts to prepare milk of lime, and an other milk of lime recycle pump starts.Cycle alternation like this.
Lime milk dosing adopts the flow decupling chemical feeding points dosage at lime milk solution case internal recycle, and arranges flushing of pipeline, blocks to prevent the deposition in lime pipeline.The dosage of milk of lime is controlled by the aperture of Pneumatic adjusting ball valve 14, Pneumatic adjusting ball valve is located at the promptness that ensure that signal feedback near toss area, the wear-resistant stability maintaining milk of lime and add of Pneumatic adjusting ball valve, in Lime-Injecting pond, pH meter 15 and pneumatic ceramic regulate the chain PID that is of ball valve to regulate.
Adopt this novel lime medicine system and addition method, setup control settling pond mixing zone pH value is 10.3, and settling pond mixing zone pH value detected result is shown in Fig. 2.
As can be seen from Figure 2, toss area pH value controls accurately, and error is no more than ± and 0.3.
Claims (10)
1. white lime dosing system in a water treatment system, it is characterized in that, comprise lime powder bin (1), the exit, lower end of lime powder bin (1) is provided with feeding machine (4), feeding machine (4) is connected with metering conveyor (5), metering conveyor (5) is connected with supply device (8) through the pipeline (7) of transparent material, supply device (8) is connected with lime milk solution case (10), lime milk solution case (10) is provided with automatic sand draining valve (12), lime milk solution case (10) adds pond (16) through lime milk dosing pipe and milk of lime and is connected.
2. white lime dosing system in a kind of water treatment system according to claim 1, is characterized in that, described lime powder bin (1) is provided with sack cleaner (2) and level gage (3).
3. white lime dosing system in a kind of water treatment system according to claim 1, is characterized in that, described pipeline (7) is provided with anti-blocking detector (6).
4. white lime dosing system in a kind of water treatment system according to claim 1, is characterized in that, described lime milk solution case (10) is also provided with stirrer (9) and fluid level transmitter (11).
5. white lime dosing system in a kind of water treatment system according to claim 1, is characterized in that, described milk of lime recycle pump (13) is Pulp pump.
6. white lime dosing system in a kind of water treatment system according to claim 1, is characterized in that, described lime milk dosing pipe is provided with Pneumatic adjusting ball valve (14).
7. white lime dosing system in a kind of water treatment system according to claim 1, is characterized in that, Pneumatic adjusting ball valve (14) is pneumatic ceramic adjustment ball valve.
8. white lime dosing system in a kind of water treatment system according to claim 1, is characterized in that, the metering conveyor that described metering conveyor (5) is spiral.
9. white lime dosing system in a kind of water treatment system according to claim 1, is characterized in that, described milk of lime adds in pond (16) and is provided with pH meter (15).
10. white lime dosing system in a kind of water treatment system according to claim 1, is characterized in that, described lime milk solution case (10) is also connected with lime milk dosing pipe by milk of lime return line; Lime milk solution case (10) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475885.0U CN204778995U (en) | 2015-07-03 | 2015-07-03 | White lime is thrown with system among water processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475885.0U CN204778995U (en) | 2015-07-03 | 2015-07-03 | White lime is thrown with system among water processing system |
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| Publication Number | Publication Date |
|---|---|
| CN204778995U true CN204778995U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520475885.0U Expired - Fee Related CN204778995U (en) | 2015-07-03 | 2015-07-03 | White lime is thrown with system among water processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986845A (en) * | 2015-07-03 | 2015-10-21 | 西安西热水务环保有限公司 | Slaked lime feeding system in water processing system |
| CN109157973A (en) * | 2018-09-10 | 2019-01-08 | 大唐陕西发电有限公司 | A kind of absorption tower slurries PH auto-adjustment control method |
-
2015
- 2015-07-03 CN CN201520475885.0U patent/CN204778995U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986845A (en) * | 2015-07-03 | 2015-10-21 | 西安西热水务环保有限公司 | Slaked lime feeding system in water processing system |
| CN104986845B (en) * | 2015-07-03 | 2017-09-12 | 西安西热水务环保有限公司 | White lime dosing system in a kind of water treatment system |
| CN109157973A (en) * | 2018-09-10 | 2019-01-08 | 大唐陕西发电有限公司 | A kind of absorption tower slurries PH auto-adjustment control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |