CN102961901A - Pulse type rotational flow washing device of desulfuration sedimentation basin - Google Patents
Pulse type rotational flow washing device of desulfuration sedimentation basin Download PDFInfo
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- CN102961901A CN102961901A CN2012105173741A CN201210517374A CN102961901A CN 102961901 A CN102961901 A CN 102961901A CN 2012105173741 A CN2012105173741 A CN 2012105173741A CN 201210517374 A CN201210517374 A CN 201210517374A CN 102961901 A CN102961901 A CN 102961901A
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- sedimentation basin
- desulfuration
- rotational flow
- desulfurization
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Abstract
The invention discloses a pulse type rotational flow washing device of a desulfuration sedimentation basin. The pulse type rotational flow washing device of the desulfuration sedimentation basin comprises a sedimentation basin and a vertical well; a size channel and a slurry pipeline are arranged at the bottom of the sedimentation basin; a slurry pump is mounted on the slurry pipeline; a vertical well support post is mounted on the vertical well; a washing pipeline is mounted around the vertical well; the washing pipeline is located inside the sedimentation basin; and a plurality of pulse type rotational flow nozzles are mounted on the washing pipeline. With the improvement, a desulfuration slurry hardening and curing condition inside the sedimentation basin can be greatly improved, so that the problem of influencing the slag-out effect can be solved well; the desulfuration system recovers to normally operate; a desulfuration liquid keeps clean all along; and the normal and safe operation of the desulfuration system can be ensured.
Description
Technical field
The present invention relates to a kind of particularly double alkali method desulfurizing technology of wet desulphurization that is applicable to, relate in particular to a kind of desulfurization sedimentation basin pulsed rotational flow flushing device.
Background technology
What power plant's wet desulphurization was adopted is double alkali method desulfurizing technology, its cardinal principle is to utilize NaOH solution as starting desulfurizing agent, the NaOH solution for preparing is squeezed into desulfurizing tower, absorb the SO2 in the flue gas, desulfurization product and Ca(OH) 2 solution reactions, restore NaOH solution and return again circulation desulfurization in the desulfurizing tower.The sulphur of taking off is separated out (being desulfurated plaster) with the form of calcium sulfite, calcium sulfate, carries out fully utilizing after the processed.
The desulfurization slag treatment system comprises vertical-flow square sedimentation basin and slag stock pump and vacuum dewatering system.The slag stock pump is transported outward the slurry of the desulfurization slag in sedimentation basin suction concentration basin after vacuum belt dewatering system processed.Higher because entering stove coal sulphur content, all more than 5000 mg/m3, it is about more than 70 tons to produce desulfurated plaster every day for the sulfur dioxide original concentration.Desulfurization slag is starched the curing of hardening easily, moves after 3-4 days, has basically piled up full desulfurization slag slurry in the sedimentation basin.Because slag stock pump pump intake is in sedimentation basin one side, after desulfurization slag pulpboard knot solidifies, only can lift suction pump entrance a small amount of desulfurization slag on every side starch, the desulfurization slag slurry of other sides can't be extracted out, and the interior space of sedimentation basin is diminished gradually, and settling height shortens, calcium sulfite in the doctor solution, calcium sulfate etc. can't precipitate, doctor solution begins by becoming clearly muddy, and the doctor solution that contains lime enters desulfurizing tower, very easily causes nozzle and demister to stop up fouling.Necessary stoppage in transit desulphurization system, after the nozzle of obstruction fouling in harden desulfurization slag slurry and the desulfurizing tower that accumulate in the sedimentation basin, demister etc. are cleaned out, can again prepare the operation of doctor solution start-up system, have a strong impact on the normal safe operation of desulfurized effect and desulphurization system.
Summary of the invention
The purpose of this invention is to provide a kind of desulfurization sedimentation basin pulsed rotational flow flushing device, solve many difficult problems that desulfurization slag pulpboard knot solidifies affects the normal operation of effect and system of slagging tap.
For achieving the above object, the technical solution used in the present invention is:
A kind of desulfurization sedimentation basin pulsed rotational flow flushing device, comprise sedimentation basin and vertical shaft, the bottom of sedimentation basin is provided with slurry channels ditch, slag slurry pipeline, on the slag slurry pipeline slag stock pump is installed, the vertical shaft pillar is installed on the vertical shaft, it is characterized in that: around the vertical shaft flushing pipe is installed, flushing pipe is positioned at sedimentation basin, and a plurality of pulse rotary flow nozzles are installed on the flushing pipe.
According to described desulfurization sedimentation basin pulsed rotational flow flushing device, it is characterized in that: described pulse rotary flow nozzle lays respectively at four jiaos in pond and position, every side stage casing.
According to described desulfurization sedimentation basin pulsed rotational flow flushing device, it is characterized in that: in the described sedimentation basin immersible pump is set.
Advantageous effect of the present invention is: by above transformation, the situation that desulfurization slag pulpboard knot solidifies in the sedimentation basin is greatly improved, and has well solved the problem that affects the effect of slagging tap, and desulphurization system is recovered normal operation, it is limpid that doctor solution remains, guaranteed the normal and safe operation of desulphurization system.
Description of drawings
Fig. 1 is the plane of sedimentation basin of the present invention.
Fig. 2 is the profile of sedimentation basin of the present invention.
In the accompanying drawing: 1, sedimentation basin; 2, vertical shaft; 3, slurry channels ditch; 4, slag slurry pipeline; 5, slag stock pump; 6, vertical shaft pillar; 7, immersible pump; 8, flushing pipe; 9, pulse rotary flow nozzle.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments:
The present invention as shown in Figure 1, 2, a kind of desulfurization sedimentation basin pulsed rotational flow flushing device, comprise sedimentation basin 1 and vertical shaft 2, the bottom of sedimentation basin 1 is provided with slurry channels ditch 3, slag slurry pipeline 4, on the slag slurry pipeline 4 slag stock pump 5 is installed, vertical shaft pillar 6 is installed on the vertical shaft 2, it is characterized in that: flushing pipe 8 is installed around the vertical shaft 2, flushing pipe 8 is positioned at sedimentation basin 1, and a plurality of pulse rotary flow nozzles 9 are installed on the flushing pipe 8.According to described desulfurization sedimentation basin pulsed rotational flow flushing device, it is characterized in that: described pulse rotary flow nozzle 9 lays respectively at four jiaos in pond and position, every side stage casing.According to described desulfurization sedimentation basin pulsed rotational flow flushing device, it is characterized in that: the described sedimentation basin 1 interior immersible pump 7 that arranges.
Operating position of the present invention is as shown in Figure 1, 2: this sedimentation basin pulse eddy flow flusher comprises 8 of 1 on immersible pump, 21.4 meters of flushing pipes and pulsed swirl nozzles.Mounting means is as follows: position (4.5 meters apart from the sedimentation basin top) arrange a circle flushing pipe 8 on the lower side in sedimentation basin 1 interior stage casing, and specification φ 57 * 3,18.4 meters of total lengths; Install 8 altogether of pulsed swirl nozzles additional in four jiaos of places, pond and every side middle section of flushing pipe 8 respectively; The immersible pump 7 that a 5.5kw is installed at sedimentation basin 1 internal upper part (2 meters apart from the sedimentation basin top) provides the power that washes the water source, makes the desulfurization slag slurry in the sedimentation basin be in all the time turbulent condition, and the curing of no longer hardening is beneficial to the slag stock pump and extracts.The characteristics of maximum of the present invention are to arrange pulse suspension pipeline and swirl nozzle in sedimentation basin, make the desulfurization slag in the sedimentation basin starch the curing of no longer hardening, and the accumulated slag of being convenient in the sedimentation basin is drawn out of.
Embodiment recited above is described preferred embodiment of the present invention; be not that design of the present invention and protection domain are limited; under the prerequisite that does not break away from design concept of the present invention; common engineers and technicians make technical scheme of the present invention in this area various modification and improvement all should fall into protection scope of the present invention.
Claims (3)
1. desulfurization sedimentation basin pulsed rotational flow flushing device, comprise sedimentation basin (1) and vertical shaft (2), the bottom of sedimentation basin (1) is provided with slurry channels ditch (3), slag slurry pipeline (4), the upper slag stock pump (5) of installing of slag slurry pipeline (4), the upper vertical shaft pillar (6) of installing of vertical shaft (2), it is characterized in that: around the vertical shaft (2) flushing pipe (8) is installed, flushing pipe (8) is positioned at sedimentation basin (1), the upper a plurality of pulse rotary flow nozzles (9) of installing of flushing pipe (8).
2. desulfurization sedimentation basin pulsed rotational flow flushing device according to claim 1, it is characterized in that: described pulse rotary flow nozzle (9) lays respectively at four jiaos in pond and position, every side stage casing.
3. desulfurization sedimentation basin pulsed rotational flow flushing device according to claim 1 is characterized in that: immersible pump (7) is set in the described sedimentation basin (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105173741A CN102961901A (en) | 2012-12-06 | 2012-12-06 | Pulse type rotational flow washing device of desulfuration sedimentation basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105173741A CN102961901A (en) | 2012-12-06 | 2012-12-06 | Pulse type rotational flow washing device of desulfuration sedimentation basin |
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| CN102961901A true CN102961901A (en) | 2013-03-13 |
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| CN2012105173741A Pending CN102961901A (en) | 2012-12-06 | 2012-12-06 | Pulse type rotational flow washing device of desulfuration sedimentation basin |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038178A (en) * | 1974-11-19 | 1977-07-26 | Risto Tapani Hukki | Apparatus for controlling discharge of classified sand from a hydraulic classifier |
| JPS61129011A (en) * | 1984-11-29 | 1986-06-17 | Japan Organo Co Ltd | Floc blanket type flocculative sedimentation apparatus |
| CN200970491Y (en) * | 2006-04-21 | 2007-11-07 | 杨在学 | Vertical flow inclined tube suspension clarifying pool purifying device |
| CN101362622A (en) * | 2008-01-16 | 2009-02-11 | 刘壮 | Combined vertical sedimentation tank |
| CN101700461A (en) * | 2009-10-16 | 2010-05-05 | 中国铝业股份有限公司 | Aluminum oxide production self-owned power plant boiler smoke desulfuration method |
| CN201871250U (en) * | 2010-11-04 | 2011-06-22 | 中国石油天然气股份有限公司 | Vertical flow type facultative sedimentation tank |
| CN202951295U (en) * | 2012-12-06 | 2013-05-29 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Pulse type cyclone washing device of desulfurization sedimentation basin |
-
2012
- 2012-12-06 CN CN2012105173741A patent/CN102961901A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038178A (en) * | 1974-11-19 | 1977-07-26 | Risto Tapani Hukki | Apparatus for controlling discharge of classified sand from a hydraulic classifier |
| JPS61129011A (en) * | 1984-11-29 | 1986-06-17 | Japan Organo Co Ltd | Floc blanket type flocculative sedimentation apparatus |
| CN200970491Y (en) * | 2006-04-21 | 2007-11-07 | 杨在学 | Vertical flow inclined tube suspension clarifying pool purifying device |
| CN101362622A (en) * | 2008-01-16 | 2009-02-11 | 刘壮 | Combined vertical sedimentation tank |
| CN101700461A (en) * | 2009-10-16 | 2010-05-05 | 中国铝业股份有限公司 | Aluminum oxide production self-owned power plant boiler smoke desulfuration method |
| CN201871250U (en) * | 2010-11-04 | 2011-06-22 | 中国石油天然气股份有限公司 | Vertical flow type facultative sedimentation tank |
| CN202951295U (en) * | 2012-12-06 | 2013-05-29 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Pulse type cyclone washing device of desulfurization sedimentation basin |
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Application publication date: 20130313 |