CN102512938B - 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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- CN102512938B CN102512938B CN201110405872.2A CN201110405872A CN102512938B CN 102512938 B CN102512938 B CN 102512938B CN 201110405872 A CN201110405872 A CN 201110405872A CN 102512938 B CN102512938 B CN 102512938B
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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 limestone pulping and long distance conveying device and using method thereof.
Background technology
Lime stone-gypsum wet flue gas desulfurizing technique is current most widely used a kind of desulfur technology, its principle is to adopt agstone to make slurries as desulfurization absorbent, contact mixing with the flue gas that enters absorption tower, calcium carbonate in sulfur dioxide and slurries in flue gas and the oxidation air blasting carry out chemical reaction, finally generate gypsum.Wherein, the preparation method of lime stone slurry comprises outsourcing agstone pulp-making method, flow process is as follows: agstone is transported to plant area through shipping or car fortune mode, in delivering to limestone powder bin, pneumatic transporting stores, agstone enters lime stone slurry case through electric screw batcher, mix with pulping process water, be configured to the lime stone slurry that density is about 1265mg/m3, then through limestone slurry liquid pump, be transported to absorption tower zone.
Because lime stone slurry (concentration approximately 30%) easily deposits in pipeline, blocking pipeline, therefore keep 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) by gravity reflux; 2) by slush pump 5, provide and push back stream.If consider by gravity reflux, conduit slope can not, in little by 1%, often cause pipeline rout complexity, is difficult to arrange; If while 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 conveying device, comprise slurry tank 1, slush pump 5, long apart from carrier pipe 3, absorption tower 2, slurry reflux pipe 4 and oral siphon 13, slurry tank 1 and absorption tower 2 are generally distant, the logical long-distance carrier pipe 3 of slurry tank 1 is communicated with absorption tower 2, length generally exceedes 500 meters apart from the length of carrier pipe 3, near the length of slurry tank 1, be provided with slush pump 5 on apart from carrier pipe 3, the porch of slush pump 5 is provided with the first valve 6, the exit of slush pump 5 is provided with the second valve 7, near the length on absorption tower 2, be provided with the 3rd valve 8 on apart from carrier pipe 3, on oral siphon 13, be provided with the 6th valve 14, the top of oral siphon 13 and slurry tank 1 is communicated with, the outlet of slurry reflux pipe 4 is communicated with slurry tank 1 top, the porch of slurry reflux pipe 4 is provided with the 4th valve 11, the entrance of slurry reflux pipe 4 with near described the 3rd valve 8 and the described length that is positioned at before described the 3rd valve 8 valves, apart from carrier pipe 3, be communicated with, this setup makes the length of slurry reflux pipe 4 also can exceed 500 meters.
When lime stone slurry concentration, fail to reach and set concentration value or 2nd district, absorption tower and do not send while carrying slurries signal, now the 3rd valve 8 is closed, and all lime stone slurries are got back to slurry tank 1 by slurry reflux pipe 4.When 2nd district, absorption tower send conveying slurries signal, the 3rd valve 8 is opened, lime stone slurry in slurry tank 1 is sent into absorption tower 2 through long apart from carrier pipe 3, lime stone slurry can be back in slurry tank 1 by slurry reflux pipe 4 simultaneously, now absorption tower 2 slurries porch, district pressure are excessive, easily cause absorption tower 2 district's slurry tanks or absorption tower 2 inner lining damages, affect desulphurization system stable operation.Except this, also need to arrange the slurry reflux pipe of long distance and high-lift slush pump, increased construction and operating cost.
Utilize limestone pulping and the conveying device of above-mentioned routine to carry out lime stone slurry preparation and the long method apart from carrying, it comprises the following steps:
1) moisturizing slurrying step, agstone falls into slurry tank, fresh water (FW) enters slurry tank through the oral siphon being communicated with slurry tank top, slush pump continuous service, slurries circulate between length is apart from carrier pipe, slurry reflux pipe and slurry tank, fresh water (FW) and agstone are uniformly mixed, and are configured to satisfactory lime stone slurry;
2) slurries supplying step, the lime stone slurry in slurry tank is sent into absorption tower through long apart from carrier pipe, and lime stone slurry can be back in slurry tank by slurry reflux pipe simultaneously.
The method that above-mentioned lime stone slurry preparation and long distance are carried need to make lime stone slurry circulate between length is apart from carrier pipe, slurry reflux pipe and slurry tank, and slurry reflux pipe in conventional limestone pulping and conveying device and grow and all exceed 500 meters apart from the length of carrier pipe, lime stone slurry need to transmit 1000 meters just can complete a cycle period above, cause preparing the consuming time long of lime stone slurry, production efficiency is low.
Summary of the invention
The object of the invention is to overcome the defect of prior art, a kind of limestone pulping and remote device and the using method thereof of carrying are provided.
The present invention is achieved through the following technical solutions: a kind of limestone pulping and long distance conveying device, comprise slurry tank, slush pump, long apart from carrier pipe, absorption tower, slurry reflux pipe and oral siphon, the logical long-distance carrier pipe of slurry tank is communicated with absorption tower, near the length of slurry tank, be provided with slush pump on apart from carrier pipe, the porch of slush pump is provided with the first valve, the exit of slush pump is provided with the second valve, near the length on absorption tower, be provided with the 3rd valve on apart from carrier pipe, the outlet of slurry reflux pipe is communicated with slurry tank top, the porch of slurry reflux pipe is provided with the 4th valve, on oral siphon, be provided with the 6th valve, it also comprises that porch is provided with the filling pipe of the 5th valve, the outlet of filling pipe is communicated with described slurry tank top, the entrance of filling pipe with near described the second valve and the described length that is positioned at after the described second valve family of power and influence, apart from carrier pipe, be communicated with, the entrance of described slurry reflux pipe is communicated with apart from carrier pipe with the described length between described slush pump and described the second valve, described oral siphon with near described the 3rd valve and the described length that is positioned at before described the 3rd valve valve, apart from carrier pipe, be communicated with.
When device brings into operation, close the second valve and the 3rd valve, open the first valve, the 4th valve, the 5th valve and the 6th valve, open slush pump.Agstone falls into slurry tank, and fresh water (FW) flows into slurry tank through oral siphon, length apart from carrier pipe and filling pipe, is uniformly mixed with agstone, is configured to satisfactory lime stone slurry.In configuration lime stone slurry process, slush pump continuous service, slurries circulate between slush pump, slurry reflux pipe and slurry tank, and device is in moisturizing slurrying state.
When needs are carried lime stone slurry, open the first valve, the second valve and the 3rd valve, close the 4th valve, the 5th valve and the 6th valve, keep slush pump continuous service.Lime stone slurry in slurry tank is sent into absorption tower through long apart from carrier pipe, and lime stone slurry can be back in slurry tank by slurry reflux pipe simultaneously, and device is in slurries feed status.
When the limestone slurry liquid measure of carrying reaches after predetermined value, device switches to moisturizing slurrying state from slurries feed status, now, keeps slush pump continuous service, close the second valve and the 3rd valve, open the first valve, the 4th valve, the 5th valve and the 6th valve.Agstone falls in slurry tank, and fresh water (FW) flows into long apart from carrier pipe through oral siphon, and rinses to filling pipe apart from the lime stone slurry in carrier pipe long, and last participates in the slurries preparation of a new round with flowing into slurry tank.
This limestone pulping utilizes fresh water (FW) to rinse length apart from lime stone slurry residual in carrier pipe with long distance conveying device, without arranging the slurry reflux pipe of long distance and the slush pump of large lift, both having avoided lime stone slurry to deposit in pipeline, can be again the moisturizing of limestone pulping process.
Use as utilized limestone pulping as described in claim 1 and long distance conveying device to carry out a method for lime stone slurry preparation and long distance conveying, comprise the following steps:
1) moisturizing slurrying step: close the second valve and the 3rd valve, open the 5th valve and the 6th valve, in slurry tank, add agstone, from the oral siphon of absorption tower side, through long-distance carrier pipe and filling pipe, in slurry tank, add fresh water (FW) successively, fresh water (FW) and agstone are uniformly mixed, slush pump continuous service circulates slurries between slush pump, slurry reflux pipe and slurry tank, until preparation obtains satisfactory lime stone slurry;
2) slurries supplying step: close the 5th valve and the 6th valve, open the second valve and the 3rd valve, make the lime stone slurry in slurry tank send into absorption tower through long apart from carrier pipe, lime stone slurry can be back in slurry tank by slurry reflux pipe simultaneously;
3) backwash step: close the second valve and the 3rd valve, open the 5th valve and the 6th valve, from the oral siphon of absorption tower side, through long-distance carrier pipe and filling pipe, in slurry tank, add fresh water (FW) successively, by growing apart from the lime stone slurry backwash in carrier pipe to slurry tank, enter next step moisturizing slurrying step simultaneously.
Above-mentioned lime stone slurry preparation and the long method apart from carrying, while preparing lime stone slurry, slurries only need circulate between slush pump, slurry reflux pipe and slurry tank, do not need to flow through whole piece length apart from carrier pipe, and the length of the slurry reflux pipe in above-mentioned limestone pulping and long distance conveying device also shortens greatly, so the cycle period of lime stone slurry shortens greatly, can prepare fast lime stone slurry, improved production efficiency.
Advantage of the present invention is: greatly shortened the length of slurry reflux pipe, reduced slurries pump lift, reduced the laying difficulty of device, saved construction and operating cost.Can prepare fast lime stone slurry, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is limestone pulping and the remote apparatus structure schematic diagram of carrying in prior art;
Fig. 2 is embodiment of the present invention limestone pulping and the remote apparatus structure schematic diagram of carrying;
1. slurry tank, 2. absorption tower, 3. long apart from carrier pipe, 4. slurry reflux pipe, 5. slush pump, 6. the first valve, 7. the 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 limestone pulping and long distance conveying device, comprise slurry tank 1, slush pump 5, long apart from carrier pipe 3, absorption tower 2, slurry reflux pipe 4 and oral siphon 13, the logical long-distance carrier pipe 3 of slurry tank 1 is communicated with absorption tower 2, near the length of slurry tank 1, be provided with slush pump 5 on apart from carrier pipe 3, the porch of slush pump 5 is provided with the first valve 6, the exit of slush pump 5 is provided with the second valve 7, near the length on absorption tower 2, be provided with the 3rd valve 8 on apart from carrier pipe 3, the outlet of slurry reflux pipe 4 is communicated with slurry tank 1 top, the porch of slurry reflux pipe 4 is provided with the 4th valve 11, on oral siphon 13, be provided with the 6th valve 14, it also comprises that porch is provided with the filling pipe 10 of the 5th valve 12, the outlet of filling pipe 10 is communicated with described slurry tank 1 top, the entrance of filling pipe 10 with near described the second valve 7 and the described length that is positioned at after described the second valve 7 valves, apart from carrier pipe 3, be communicated with, the entrance of described slurry reflux pipe 4 is communicated with apart from carrier pipe 3 with the described length between described slush pump 5 and described the second valve 7, described oral siphon 13 with near described the 3rd valve 8 and the described length that is positioned at before described the 3rd valve 8 valves, apart from carrier pipe 3, be communicated with.
When device brings into operation, close the second valve 7 and the 3rd valve 8, open the first valve 6, the 4th valve 11, the 5th valve 12 and the 6th valve 14, open slush pump 5.Agstone falls into slurry tank 1, and fresh water (FW) flows into slurry tank 1 through oral siphon 13, distance conveying pipe 3 and filling pipe 10, is uniformly mixed with agstone, is configured to qualified lime stone slurry.In configuration lime stone slurry process, slush pump 5 continuous services, slurries circulate between slush pump 5, slurry reflux pipe 4 and slurry tank 1, and device is in moisturizing slurrying state.
When needs are carried lime stone slurry, open the first valve 6, the 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 slurry tank 1 flows into absorption tower 2 through distance conveying pipe 3, and device is in slurries feed status.
When the limestone slurry liquid measure of carrying reaches after predetermined value, device switches to moisturizing slurrying state from slurries feed status, now, keeps slush pump 5 continuous services, close the second valve 7 and the 3rd valve 8, open the first valve 6, the 4th valve 11, the 5th valve 12 and the 6th valve 14.Agstone falls in slurry tank 1, and fresh water (FW) flows into distance conveying pipe 3 through oral siphon 13, and the lime stone slurry in distance conveying pipe 3 is rinsed to filling pipe 10, and last participates in the slurries preparation of a new round with flowing into slurry tank 1.
On the basis based on said apparatus, the invention provides a kind of lime stone slurry preparation and the long method apart from carrying, comprise the following steps:
1) moisturizing slurrying step: close the second valve 7 and the 3rd valve 8, open the 5th valve 12 and the 6th valve 14, in slurry tank 1, add agstone, from the oral siphon 13 of absorption tower 2 sides, through long-distance carrier pipe 3 and filling pipe 10, in slurry tank 1, add fresh water (FW) successively, fresh water (FW) and agstone are uniformly mixed, slush pump 5 continuous services circulate slurries between slush pump 5, slurry reflux pipe 4 and slurry tank 1, until preparation obtains satisfactory lime stone slurry;
2) slurries supplying step: close the 5th valve 12 and the 6th valve 14, open the second valve 7 and the 3rd valve 8, make the lime stone slurry in slurry tank 1 apart from carrier pipe 3, send into absorption tower 2 through long, lime stone slurry can be back in slurry tank 1 by slurry reflux pipe 4 simultaneously;
3) backwash step: close the second valve 7 and the 3rd valve 8, open the 5th valve 12 and the 6th valve 14, from the oral siphon 13 of absorption tower 2 sides, through long-distance carrier pipe 3 and filling pipe 10, in slurry tank 1, add fresh water (FW) successively, by growing apart from the lime stone slurry backwash in carrier pipe 3 to slurry tank 1, enter next step moisturizing slurrying step simultaneously.
Above-mentioned lime stone slurry preparation and the long method apart from carrying, while preparing lime stone slurry, slurries only need circulate between slush pump 5, slurry reflux pipe 4 and slurry tank 1, do not need to flow through whole piece length apart from carrier pipe 3, and the length of the slurry reflux pipe 4 in above-mentioned limestone pulping and long distance conveying device also shortens greatly, so the cycle period of lime stone slurry shortens greatly, can prepare fast lime stone slurry, improved production efficiency.
Above-listed detailed description is for the illustrating of one of the present invention possible embodiments, and this embodiment is not in order to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (2)
1. a limestone pulping and long distance conveying device, comprise slurry tank, slush pump, long apart from carrier pipe, absorption tower, slurry reflux pipe and oral siphon, the logical long-distance carrier pipe of slurry tank is communicated with absorption tower, near the length of slurry tank, be provided with slush pump on apart from carrier pipe, the porch of slush pump is provided with the first valve, the exit of slush pump is provided with the second valve, near the length on absorption tower, be provided with the 3rd valve on apart from carrier pipe, the outlet of slurry reflux pipe is communicated with slurry tank top, the porch of slurry reflux pipe is provided with the 4th valve, on oral siphon, be provided with the 6th valve, it is characterized in that, it also comprises that porch is provided with the filling pipe of the 5th valve, the outlet of filling pipe is communicated with described slurry tank top, the entrance of filling pipe with near described the second valve and the described length that is positioned at after the described second valve family of power and influence, apart from carrier pipe, be communicated with, the entrance of described slurry reflux pipe is communicated with apart from carrier pipe with the described length between described slush pump and described the second valve, described oral siphon with near described the 3rd valve and the described length that is positioned at before described the 3rd valve valve, apart from carrier pipe, be communicated with.
2. use limestone pulping as claimed in claim 1 and long distance conveying device to carry out lime stone slurry and prepare a method of carrying with long distance, it is characterized in that comprising the following steps:
1) moisturizing slurrying step: close the second valve and the 3rd valve, open the 5th valve and the 6th valve, in slurry tank, add agstone, from the oral siphon of absorption tower side, through long-distance carrier pipe and filling pipe, in slurry tank, add fresh water (FW) successively, fresh water (FW) and agstone are uniformly mixed, slush pump continuous service circulates slurries between slush pump, slurry reflux pipe and slurry tank, until preparation obtains satisfactory lime stone slurry;
2) slurries supplying step: close the 5th valve and the 6th valve, open the second valve and the 3rd valve, make the lime stone slurry in slurry tank send into absorption tower through long apart from carrier pipe, lime stone slurry can be back in slurry tank by slurry reflux pipe simultaneously;
3) backwash step: close the second valve and the 3rd valve, open the 5th valve and the 6th valve, from the oral siphon of absorption tower side, through long-distance carrier pipe and filling pipe, in slurry tank, add fresh water (FW) successively, by growing apart from the lime stone slurry backwash in carrier pipe to slurry tank, enter next step moisturizing slurrying step simultaneously.
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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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| CN102512938B true CN102512938B (en) | 2014-04-23 |
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| 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 |
| JP2020104043A (en) * | 2018-12-27 | 2020-07-09 | 三菱日立パワーシステムズ株式会社 | Fluid delivery device and method for modifying fluid delivery device |
| CN111503521B (en) * | 2020-03-24 | 2024-08-13 | 大唐林州热电有限责任公司 | Lime milk conveying system with cleaning device and cleaning method thereof |
| 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 |
| 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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| 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 |
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