CN102512938A - Limestone pulping and long-distance conveying device and using method thereof - Google Patents
Limestone pulping and long-distance conveying device and using method thereof Download PDFInfo
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- CN102512938A CN102512938A CN2011104058722A CN201110405872A CN102512938A CN 102512938 A CN102512938 A CN 102512938A CN 2011104058722 A CN2011104058722 A CN 2011104058722A CN 201110405872 A CN201110405872 A CN 201110405872A CN 102512938 A CN102512938 A CN 102512938A
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Abstract
The invention discloses a limestone pulping and long-distance conveying device and a using method thereof. The limestone pulping and long-distance conveying device comprises a water supplementing pipe, wherein an inlet of the water supplementing pipe is provided with a fifth valve, an outlet of the water supplementing pipe is communicated with the top of a pulp box, the inlet of the water supplementing pipe and a long-distance conveying pipe are communicated, the long-distance conveying pipe is close to a second valve and is arranged at the back of the second valve, an inlet of a pulp backflow pipe is communicated with another long-distance conveying pipe between a pulp pump and the second valve, and a water feeding pipe is communicated with another long-distance conveying pipe which is close to a third valve and arranged at the front of the third valve. The using method of the limestone pulping and long-distance conveying device comprises a water supplementing pulping step, a pulp conveying step and a back flushing step. The limestone pulping and long-distance conveying device and the using method thereof, disclosed by the invention, have the advantages of largely shortening the length of the pulp backflow pipe, reducing the lift of the pulp pump and the pavement difficulty of a device, saving construction and operation costs, being capable of quickly preparing limestone pulp and improving production efficiency.
Description
Technical field
The present invention relates to a kind of lime stone slurrying and long distances device and method for using thereof.
Background technology
Lime stone-gypsum wet flue gas desulfurizing technology is present most widely used a kind of desulfur technology; Its principle is to adopt agstone to process slurries as desulfurization absorbent; Contact mixing with the flue gas that gets into the absorption tower; Calcium carbonate in sulfur in smoke and the slurries and the oxidation air that blasts carry out chemical reaction, generate gypsum at last.Wherein, The preparation method of lime stone slurry comprises outsourcing agstone pulp-making method, and flow process is following: agstone is transported to plant area through shipping or car fortune mode, in strength is delivered to limestone powder bin, stores; Agstone gets into the lime stone slurry case through the electric screw batcher; Mix with pulping process water, be configured to the lime stone slurry that density is about 1265mg/m3, be transported to the absorption tower district through the limestone slurry liquid pump then.
Because lime stone slurry (concentration about 30%) deposits in pipeline easily; Blocking pipeline; Therefore keep the slush pump continuous service, lime stone slurry is circulated between slush pump, slurries carrier pipe and slurry reflux pipe, can avoid slurries deposition, blocking pipeline.Common slurry reflux mode is divided two kinds: 1) through gravity reflux; 2) provide by slush pump 5 and push back stream.If consider through gravity reflux, conduit slope can not often cause pipeline rout complicated in little by 1%, is difficult to arrange; If when considering to push back stream, often cause the lift of selected slush pump 5 higher.
As shown in Figure 1; Conventional lime stone slurry preparation and transport comprise slurries case 1, slush pump 5, long distances pipe 3, absorption tower 2, slurry reflux pipe 4 and oral siphon 13, and slurries case 1 is far away with absorption tower 2 general distances; Slurries case 1 is communicated with absorption tower 2 through long distances pipe 3; The length of long distances pipe 3 generally surpasses 500 meters, is provided with slush pump 5 near the long distances pipe 3 of slurries case 1, and the porch of slush pump 5 is provided with first valve 6; The exit of slush pump 5 is provided with second valve 7; Long distances pipe 3 near absorption tower 2 is provided with the 3rd valve 8, and oral siphon 13 is provided with the 6th valve 14, and the top of oral siphon 13 and slurries case 1 is communicated with; The outlet of slurry reflux pipe 4 is communicated with slurries case 1 top; The porch of slurry reflux pipe 4 is provided with the 4th valve 11, the inlet of slurry reflux pipe 4 with near said the 3rd valve 8 and the said long distances pipe 3 before being positioned at said the 3rd valve 8 valves be communicated with, this set mode makes that the length of slurry reflux pipe 4 also can be above 500 meters.
Fail to reach when lime stone slurry concentration and set concentration value or 2 districts, absorption tower and do not send when carrying the slurries signal, this moment, the 3rd valve 8 was closed, and whole lime stone slurries are got back to slurries case 1 through slurry reflux pipe 4.When 2 districts, absorption tower send conveying slurries signal; The 3rd valve 8 is opened; Lime stone slurry in the slurries case 1 is sent into absorption tower 2 through long distances pipe 3, and lime stone slurry can be back in the slurries case 1 through slurry reflux pipe 4 simultaneously, and this moment, 2 district, absorption tower slurries porch pressure was excessive; Cause absorption tower 2 district's slurries casees or absorption tower 2 inner lining damages easily, influence desulphurization system stable operation.Remove this, also need arrange the slurry reflux pipe of long distance and high-lift slush pump, increased construction and operating cost.
Utilize the lime stone slurrying of above-mentioned routine and the method that transport carries out lime stone slurry preparation and long distances, it may further comprise the steps:
1) moisturizing slurrying step; Agstone falls into the slurries case; The oral siphon that the fresh water (FW) warp is communicated with the slurries box top gets into the slurries case, the slush pump continuous service, and slurries circulate between long distances pipe, slurry reflux pipe and slurries case; Fresh water (FW) and agstone mix, and are configured to satisfactory lime stone slurry;
2) slurries supplying step, the lime stone slurry in the slurries case is sent into the absorption tower through long distances pipe, and lime stone slurry can be back in the slurries case through the slurry reflux pipe simultaneously.
The method of above-mentioned lime stone slurry preparation and long distances need make lime stone slurry between long distances pipe, slurry reflux pipe and slurries case, circulate; And the length of conventional lime stone slurrying and the slurry reflux pipe in the transport and long distances pipe is all above 500 meters; Lime stone slurry need transmit could accomplish a cycle period more than 1000 meters; Cause preparing the consuming time long of lime stone slurry, production efficiency is low.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, a kind of lime stone slurrying and remote transport and method for using thereof are provided.
The present invention realizes through following technical scheme: a kind of lime stone slurrying and long distances device; Comprise slurries case, slush pump, long distances pipe, absorption tower, slurry reflux pipe and oral siphon; The slurries case is communicated with the absorption tower through long distances pipe, is provided with slush pump near the long distances pipe of slurries case, and the porch of slush pump is provided with first valve; The exit of slush pump is provided with second valve; Long distances pipe near the absorption tower is provided with the 3rd valve, and the outlet of slurry reflux pipe is communicated with the slurries box top, and the porch of slurry reflux pipe is provided with the 4th valve; Oral siphon is provided with the 6th valve; It comprises that also the porch is provided with the filling pipe of the 5th valve, and the outlet of filling pipe is communicated with said slurries box top, the inlet of filling pipe with near said second valve and the said long distances pipe after being positioned at said second valves be communicated with; The inlet of said slurry reflux pipe is communicated with said long distances pipe between said slush pump and said second valve, said oral siphon with near said the 3rd valve and the said long distances pipe before being positioned at said the 3rd valves be communicated with.
When device brings into operation, close second valve and the 3rd valve, open first valve, the 4th valve, the 5th valve and the 6th valve, open slush pump.Agstone falls into the slurries case, and fresh water (FW) flows into the slurries case through oral siphon, long distances pipe and filling pipe, mixes with agstone, is configured to satisfactory lime stone slurry.In the configuration lime stone slurry process, the slush pump continuous service, slurries circulate between slush pump, slurry reflux pipe and slurries case, and device is in moisturizing slurrying state.
When needs are carried lime stone slurry, open first valve, second valve and the 3rd valve, close the 4th valve, the 5th valve and the 6th valve, keep the slush pump continuous service.Lime stone slurry in the slurries case is sent into the absorption tower through long distances pipe, and lime stone slurry can be back in the slurries case through the slurry reflux pipe simultaneously, and device is in the slurries feed status.
After the limestone slurry liquid measure of carrying reaches predetermined value; Device switches to moisturizing slurrying state from the slurries feed status, at this moment, keeps the slush pump continuous service; Close second valve and the 3rd valve, open first valve, the 4th valve, the 5th valve and the 6th valve.Agstone falls in the slurries case, and fresh water (FW) flows into long distances pipe through oral siphon, and the lime stone slurry that will grow in the distances pipe washes to filling pipe, and last participates in the slurry preparation of a new round with flowing into the slurries case.
This lime stone slurrying utilizes residual lime stone slurry in the long distances pipe of fresh water (FW) flushing with long distances device; Need not to arrange the slurry reflux pipe of long distance and the slush pump of big lift; Both avoid lime stone slurry in pipeline, to deposit, and can be the moisturizing of lime stone pulping process again.
A kind of use is carried out the method for lime stone slurry preparation and length distances as utilizing described lime stone slurrying of claim 1 and long distances device, may further comprise the steps:
1) moisturizing slurrying step: close second valve and the 3rd valve; Open the 5th valve and the 6th valve, in the slurries case, add agstone, in the slurries case, add fresh water (FW) through long distances pipe and filling pipe successively from the oral siphon of absorption tower side; Fresh water (FW) and agstone mix; The slush pump continuous service circulates slurries between slush pump, slurry reflux pipe and slurries case, obtain satisfactory lime stone slurry until preparation;
2) slurries supplying step: close the 5th valve and the 6th valve, open second valve and the 3rd valve, make the lime stone slurry in the slurries case send into the absorption tower through long distances pipe, lime stone slurry can be back in the slurries case through the slurry reflux pipe simultaneously;
3) backwash step: close second valve and the 3rd valve; Open the 5th valve and the 6th valve; In the slurries case, add fresh water (FW) through long distances pipe and filling pipe successively from the oral siphon of absorption tower side; To grow simultaneously in lime stone slurry backwash to the slurries case in the distances pipe, get into next step moisturizing slurrying step.
The method of above-mentioned lime stone slurry preparation and long distances; During the preparation lime stone slurry, slurries only need between slush pump, slurry reflux pipe and slurries case, to circulate, the long distances pipe of the whole piece of need not flowing through; And the length of the slurry reflux pipe in above-mentioned lime stone slurrying and the long distances device also shortens greatly; So the cycle period of lime stone slurry shortens greatly, can prepare lime stone slurry fast, improved production efficiency.
Advantage of the present invention is: shortened the length of slurry reflux pipe greatly, reduced the slurries pump lift, reduced the laying difficulty of device, saved construction and operating cost.Can prepare lime stone slurry fast, improve production efficiency.
Description of drawings
Fig. 1 is lime stone slurrying and remote transport conveyor constructions sketch map in the prior art;
Fig. 2 is slurrying of embodiment of the invention lime stone and remote transport conveyor constructions sketch map;
1. slurries case, 2. the distances pipe is 3. grown on the absorption tower, 4. slurry reflux pipe, 5. slush pump, 6. first valve, 7. second valve, 8. the 3rd valve, 10. filling pipe, 11. the 4th valves, 12. the 5th valves, 13. oral siphons, 14. the 6th valves.
The specific embodiment
Embodiment:
Consult Fig. 2; A kind of lime stone slurrying and long distances device; Comprise slurries case 1, slush pump 5, long distances pipe 3, absorption tower 2, slurry reflux pipe 4 and oral siphon 13; Slurries case 1 is communicated with absorption tower 2 through long distances pipe 3, is provided with slush pump 5 near the long distances pipe 3 of slurries case 1, and the porch of slush pump 5 is provided with first valve 6; The exit of slush pump 5 is provided with second valve 7; Long distances pipe 3 near absorption tower 2 is provided with the 3rd valve 8, and the outlet of slurry reflux pipe 4 is communicated with slurries case 1 top, and the porch of slurry reflux pipe 4 is provided with the 4th valve 11; Oral siphon 13 is provided with the 6th valve 14; It comprises that also the porch is provided with the filling pipe 10 of the 5th valve 12, and the outlet of filling pipe 10 is communicated with said slurries case 1 top, the inlet of filling pipe 10 with near said second valve 7 and the said long distances pipe 3 after being positioned at said second valve, 7 valves be communicated with; The inlet of said slurry reflux pipe 4 is communicated with said long distances pipe 3 between said slush pump 5 and said second valve 7, said oral siphon 13 with near said the 3rd valve 8 and the said long distances pipe 3 before being positioned at said the 3rd valve 8 valves be communicated with.
When device brings into operation, close second valve 7 and the 3rd valve 8, open first valve 6, the 4th valve 11, the 5th valve 12 and the 6th valve 14, open slush pump 5.Agstone falls into slurries case 1, and fresh water (FW) flows into slurries case 1 through oral siphon 13, remote carrier pipe 3 and filling pipe 10, mixes with agstone, is configured to qualified lime stone slurry.In the configuration lime stone slurry process, slush pump 5 continuous services, slurries circulate between slush pump 5, slurry reflux pipe 4 and slurries case 1, and device is in moisturizing slurrying state.
When needs are carried lime stone slurry, open first valve 6, second valve 7 and the 3rd valve 8, close the 4th valve 11, the 5th valve 12 and the 6th valve 14, keep slush pump 5 continuous services.Lime stone slurry in the slurries case 1 is through remote carrier pipe 3 inflow absorption towers 2, and device is in the slurries feed status.
After the limestone slurry liquid measure of carrying reaches predetermined value; Device switches to moisturizing slurrying state from the slurries feed status, at this moment, keeps slush pump 5 continuous services; Close second valve 7 and the 3rd valve 8, open first valve 6, the 4th valve 11, the 5th valve 12 and the 6th valve 14.Agstone falls in the slurries case 1, and fresh water (FW) flows into remote carrier pipe 3 through oral siphon 13, and the lime stone slurry in the remote carrier pipe 3 is washed to filling pipe 10, and last participates in the slurry preparation of a new round with flowing into slurries case 1.
On basis based on said apparatus, the invention provides the method for a kind of lime stone slurry preparation and long distances, may further comprise the steps:
1) moisturizing slurrying step: close second valve 7 and the 3rd valve 8; Open the 5th valve 12 and the 6th valve 14, in slurries case 1, add agstone, the oral siphon 13 of 2 sides adds fresh water (FW) through long distances pipe 3 with filling pipe 10 successively in slurries case 1 from the absorption tower; Fresh water (FW) and agstone mix; Slush pump 5 continuous services circulate slurries between slush pump 5, slurry reflux pipe 4 and slurries case 1, obtain satisfactory lime stone slurry until preparation;
2) slurries supplying step: close the 5th valve 12 and the 6th valve 14; Open second valve 7 and the 3rd valve 8; Make the lime stone slurry in the slurries case 1 send into absorption tower 2 through long distances pipe 3, lime stone slurry can be back in the slurries case 1 through slurry reflux pipe 4 simultaneously;
3) backwash step: close second valve 7 and the 3rd valve 8; Open the 5th valve 12 and the 6th valve 14; The oral siphon 13 of 2 sides adds fresh water (FW) through long distances pipe 3 with filling pipe 10 successively in slurries case 1 from the absorption tower; To grow simultaneously in lime stone slurry backwash to the slurries case 1 in the distances pipe 3, get into next step moisturizing slurrying step.
The method of above-mentioned lime stone slurry preparation and long distances; During the preparation lime stone slurry, slurries only need between slush pump 5, slurry reflux pipe 4 and slurries case 1, to circulate, the long distances pipe 3 of the whole piece of need not flowing through; And the length of the slurry reflux pipe 4 in above-mentioned lime stone slurrying and the long distances device also shortens greatly; So the cycle period of lime stone slurry shortens greatly, can prepare lime stone slurry fast, improved production efficiency.
Above-listed detailed description is to the specifying of one of the present invention possible embodiments, and this embodiment is not in order to limiting claim of the present invention, and the equivalence that all the present invention of disengaging do is implemented or change, all should be contained in the claim of this case.
Claims (2)
1. lime stone slurrying and long distances device; Comprise slurries case, slush pump, long distances pipe, absorption tower, slurry reflux pipe and oral siphon, the slurries case is communicated with the absorption tower through long distances pipe, is provided with slush pump near the long distances pipe of slurries case; The porch of slush pump is provided with first valve; The exit of slush pump is provided with second valve, is provided with the 3rd valve near the long distances pipe on absorption tower, and the outlet of slurry reflux pipe is communicated with the slurries box top; The porch of slurry reflux pipe is provided with the 4th valve; Oral siphon is provided with the 6th valve, it is characterized in that, it comprises that also the porch is provided with the filling pipe of the 5th valve; The outlet of filling pipe is communicated with said slurries box top; The inlet of filling pipe with near said second valve and the said long distances pipe after being positioned at said second valves be communicated with, the inlet of said slurry reflux pipe is communicated with said long distances pipe between said slush pump and said second valve, said oral siphon with near said the 3rd valve and the said long distances pipe before being positioned at said the 3rd valves be communicated with.
2. a use is carried out the method for lime stone slurry preparation and long distances as utilizing described lime stone slurrying of claim 1 and long distances device, it is characterized in that may further comprise the steps:
1) moisturizing slurrying step: close second valve and the 3rd valve; Open the 5th valve and the 6th valve, in the slurries case, add agstone, in the slurries case, add fresh water (FW) through long distances pipe and filling pipe successively from the oral siphon of absorption tower side; Fresh water (FW) and agstone mix; The slush pump continuous service circulates slurries between slush pump, slurry reflux pipe and slurries case, obtain satisfactory lime stone slurry until preparation;
2) slurries supplying step: close the 5th valve and the 6th valve, open second valve and the 3rd valve, make the lime stone slurry in the slurries case send into the absorption tower through long distances pipe, lime stone slurry can be back in the slurries case through the slurry reflux pipe simultaneously;
3) backwash step: close second valve and the 3rd valve; Open the 5th valve and the 6th valve; In the slurries case, add fresh water (FW) through long distances pipe and filling pipe successively from the oral siphon of absorption tower side; To grow simultaneously in lime stone slurry backwash to the slurries case in the distances pipe, get into next step moisturizing slurrying step.
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| CN201110405872.2A CN102512938B (en) | 2011-12-08 | 2011-12-08 | Limestone pulping and long-distance conveying device and using method thereof |
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| CN201110405872.2A CN102512938B (en) | 2011-12-08 | 2011-12-08 | Limestone pulping and long-distance conveying device and using method thereof |
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| CN102512938A true CN102512938A (en) | 2012-06-27 |
| CN102512938B CN102512938B (en) | 2014-04-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096371A (en) * | 2017-06-30 | 2017-08-29 | 大唐环境产业集团股份有限公司 | The lime stone slurry supply system and adjusting method of a kind of wide Load Regulation |
| CN112807961A (en) * | 2020-12-29 | 2021-05-18 | 石家庄磊盛科技有限公司 | Industrial environment-friendly waste gas treatment device and treatment method thereof |
| CN113226530A (en) * | 2018-12-27 | 2021-08-06 | 三菱动力株式会社 | Fluid delivery device and method for modifying fluid delivery device |
| CN115402808A (en) * | 2022-11-01 | 2022-11-29 | 广东至富淀粉供应链管理有限公司 | Container bulk powder transportation feeding system |
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| GB693418A (en) * | 1952-01-14 | 1953-07-01 | Walter Vogel | Apparatus for removing dust from granular material |
| CN201739770U (en) * | 2010-06-01 | 2011-02-09 | 云南大红山管道有限公司 | Circulating system in ore pulp delivery pipeline |
| CN102153126A (en) * | 2010-12-24 | 2011-08-17 | 张卫芳 | Metering and remote monitoring device of gypsum |
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2011
- 2011-12-08 CN CN201110405872.2A patent/CN102512938B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB693418A (en) * | 1952-01-14 | 1953-07-01 | Walter Vogel | Apparatus for removing dust from granular material |
| CN201739770U (en) * | 2010-06-01 | 2011-02-09 | 云南大红山管道有限公司 | Circulating system in ore pulp delivery pipeline |
| CN102153126A (en) * | 2010-12-24 | 2011-08-17 | 张卫芳 | Metering and remote monitoring device of gypsum |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096371A (en) * | 2017-06-30 | 2017-08-29 | 大唐环境产业集团股份有限公司 | The lime stone slurry supply system and adjusting method of a kind of wide Load Regulation |
| CN107096371B (en) * | 2017-06-30 | 2020-04-03 | 大唐环境产业集团股份有限公司 | Wide-load-adjustable limestone slurry supply system and adjusting method |
| CN113226530A (en) * | 2018-12-27 | 2021-08-06 | 三菱动力株式会社 | Fluid delivery device and method for modifying fluid delivery device |
| CN112807961A (en) * | 2020-12-29 | 2021-05-18 | 石家庄磊盛科技有限公司 | Industrial environment-friendly waste gas treatment device and treatment method thereof |
| CN115402808A (en) * | 2022-11-01 | 2022-11-29 | 广东至富淀粉供应链管理有限公司 | Container bulk powder transportation feeding system |
| CN115402808B (en) * | 2022-11-01 | 2023-02-10 | 广东至富淀粉供应链管理有限公司 | Material feeding system for container bulk powder transportation |
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| CN102512938B (en) | 2014-04-23 |
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