CN104984655A - Slurry gathering device assembly used in wet desulfurization tower - Google Patents
Slurry gathering device assembly used in wet desulfurization tower Download PDFInfo
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- CN104984655A CN104984655A CN201510304388.9A CN201510304388A CN104984655A CN 104984655 A CN104984655 A CN 104984655A CN 201510304388 A CN201510304388 A CN 201510304388A CN 104984655 A CN104984655 A CN 104984655A
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Abstract
The invention discloses a slurry gathering device assembly used in a wet desulfurization tower. The slurry gathering device assembly comprises a slurry gathering device arranged at the upper part in the desulfurization tower and used for collecting spraying slurry at an upper layer, wherein the slurry gathering device delivers collected slurry out of the desulfurization tower through a conveyer pipe. The slurry gathering device assembly is directed at different sulfur contents of flue gas in a vertical direction and prevents low desulphurization efficiency of slurry at upper and lower layers in the desulfurization tower; the device is arranged at the central part of a spraying layer of the desulphurization spraying tower and used for collecting slurry of upper spraying layers, can convey slurry into an external slurry tank of the desulfurization tower for cyclic utilization and exerts rectification effect on flue gas; independent adjusting of the pH values of slurry of upper and lower spraying layers enables the desulfurization tower to have higher flue gas desulphurization efficiency; and the slurry gathering device assembly has the advantages of high efficiency, low energy consumption, compact structure and a small occupied land area.
Description
Technical field
The present invention relates to flue gas desulfurization technique field, be specifically related to a kind of for the slurries gathering-device assembly in wet desulfuration tower.
Background technology
Along with going deep into of national sustainable development policy, the SO of up-to-date fossil-fuel power plant atmospheric pollutant emission standard (GB13223-2011)
2emission limit improves comparatively large, and General Requirements is at 100mg/N m
3within, local area requires 50mg/Nm
3.
Current single cycle desulfurizing tower system mainly operates in middle low-sulfur coal area, can meet emission request completely.To part sulphur coal area, require that desulfuration efficiency reaches more than 98%, even require more than 99% could meet emission request, single cycle desulfurizing tower system is utilized to meet emission request, can only ensure by increasing spraying layer, greatly can increase the height of desulfurizing tower like this, energy consumption also increases thereupon; Some sulfur removal technology adopts two desulfurizing tower cascade, desulfurizing tower floor space can be caused so large, be unfavorable for too increasing cost of investment by the desulfurizing item that some places are limited simultaneously.PH value is gaseous state SO
2the major influence factors of dissolving and reacting, suitably increases ph and is beneficial to raising SO
2absorption, conventional desulfurization tower levels sprayed slurry ph value is consistent, causes sprayed slurry for upper strata SO
2the flue gas that concentration is lower removes ability to be reduced, and therefore, the PH effectively controlling levels sprayed slurry if can take will increase the absorption efficiency of desulfurizing tower greatly, reduces the SO of desulfurizing tower outlet
2concentration of emission.
Therefore, under the up-to-date discharge standard of national requirements, the desulfur technology of exploitation high-efficiency low energy consumption has great importance; the pH value of the sprayed slurry of upper and lower layer regulates separately; effective raising desulfuration efficiency, realizes the requirement meeting environmental protection, has better living space to the mankind.
Summary of the invention
In view of this; the object of the invention is to overcome defect of the prior art; there is provided a kind of for the slurries gathering-device assembly in wet desulfuration tower; the desulfur technology of exploitation high-efficiency low energy consumption; the pH value of the sprayed slurry of upper and lower layer regulates separately; effective raising desulfuration efficiency, realizes the requirement meeting environmental protection, has better living space to the mankind.
Of the present invention for the slurries gathering-device assembly in wet desulfuration tower, comprise and be arranged at desulfurizing tower internal upper part for collecting the slurries gathering-device of upper strata sprayed slurry, the slurries collected are delivered to desulfurizing tower outside by a carrier pipe by described slurries gathering-device.
Further, described slurries gathering-device comprises and being fixedly installed successively from top to bottom by multiple single-stage slurries collecting ring and the multistage slurries collecting ring that forms, and the face size of described each single-stage slurries collecting ring reduces successively from top to bottom and was provided with cigarette gap between adjacent single-stage slurries collecting ring.
Further, the radial section of described single-stage slurries collecting ring is isosceles trapezoid.
Further, the upper surface of described single-stage slurries collecting ring is measure-alike and corresponding with the lower surface of upper level slurries collecting ring, and the lower surface of single-stage slurries collecting ring is measure-alike and corresponding with the upper surface of next stage slurries collecting ring.
Further, also comprise the slurries gathered trough be arranged at below most subordinate slurries collecting ring and the lime stone slurry case being arranged at desulfurizing tower outside, described slurries gathered trough is communicated with by described carrier pipe with lime stone slurry case.
Further, described single-stage slurries collecting ring lower end is provided with annular fixed cover and connection fixing block, the upper end of described connection fixing block is fixedly connected with the lower end of single-stage slurries collecting ring, the lower end of connection fixing block is fixedly connected with annular fixed cover, and described annular fixed cover is coated at the outer suitable for reading of next stage slurries collecting ring.
Further, described connection fixing block is that circumference that is multiple and annularly fixed cover is evenly arranged.
Further, the upper base angle of described isosceles trapezoid is 2-30 °.
Further, the described distance crossing cigarette gap is 5-50cm.
Further, the upper base angle of described isosceles trapezoid is 15 °, and the described distance crossing cigarette gap is 25cm.
The invention has the beneficial effects as follows: of the present invention for the slurries gathering-device assembly in wet desulfuration tower, for in desulfurizing tower, vertically the sulfur content of flue gas is different, avoid in desulfurizing tower, the desulfuration efficiency of lower floor's slurries is not high, this device is placed in the middle part of desulfuration spray tower spraying layer for collecting the slurries of top spraying layer, and slurries can be transported in the outer slurry tank of desulfurizing tower, recycling, to flue gas, there is rectified action, on, the independence of lower spraying layer plasm PH value regulates and greatly can improve the desulfuration efficiency of desulfurizing tower to flue gas, and high-efficiency low energy consumption, compact conformation, floor space is little.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Fig. 1 is structural representation of the present invention, as shown in the figure, in the present embodiment for the slurries gathering-device assembly in wet desulfuration tower, comprise and be arranged at desulfurizing tower internal upper part for collecting the slurries gathering-device of upper strata sprayed slurry, the slurries collected are delivered to desulfurizing tower outside by a carrier pipe 4 by described slurries gathering-device; Described need be desulfurized flue gas move upward from the bottom of desulfurizing tower and with the sprayed slurry haptoreaction in desulfurizing tower, by the slurries gathering-device arranged at desulfurizing tower internal upper part, realize carrying out layering collection to slurries in desulfurizing tower, and then independent regulation and control can be carried out to the pH value of the upper strata sprayed slurry in desulfurizing tower and lower floor's sprayed slurry, for in desulfurizing tower, vertically the sulfur content of flue gas is different, avoids the desulfuration efficiency of upper and lower layer slurries in desulfurizing tower not high; This device is placed in the middle part of desulfuration spray tower spraying layer for collecting the slurries of top spraying layer, and slurries can be transported in the outer slurry tank of desulfurizing tower, recycling, the independence of upper and lower spraying layer plasm PH value regulates and greatly can improve the desulfuration efficiency of desulfurizing tower to flue gas, and compact conformation, floor space is little.
In the present embodiment, described slurries gathering-device comprises and being fixedly installed successively from top to bottom by multiple single-stage slurries collecting ring 1 and the multistage slurries collecting ring that forms, and the face size of described each single-stage slurries collecting ring 1 reduces successively from top to bottom and was provided with cigarette gap 6 between adjacent single-stage slurries collecting ring 1, described face size comprises upper surface and the lower surface of each single-stage slurries collecting ring 1, described most upper level single-stage slurries collecting ring 1 can be fixedly installed on the end face of desulfurizing tower, described multistage slurries collecting ring entirety is the structure from top to bottom for reducing gradually, the slurries that described each single-stage collecting ring is used for guttering down upper level collecting ring are collected and inwall along collecting ring flows into next stage slurries collecting ring, and flue gas enters into slurries gathering-device and realizes desulfurization from described cigarette gap 6 excessively, and described slurries gathering-device can arrange the cigarette gap 6 excessively of annular, also have rectified action flue gas, make flue gas can evenly enter slurries gathering-device, increase the contact area of slurries and flue gas, and it is higher along the slurries utilization rate of slurries gathering-device inwall trickling, make to make desulfuration efficiency higher.
In the present embodiment, the radial section of described single-stage slurries collecting ring 1 is isosceles trapezoid; Because the smoke distribution in desulfurizing tower is uneven and the design of desulfurizing tower inwall is unreasonable when flue gas rises, cause the flue gas desulphuization rate along wall not high, be the liquid gas contact area that isosceles trapezoid effectively can improve along wall flue gas by the radial section of single-stage slurries collecting ring 1, greatly improve the desulfurization degree of flue gas.
In the present embodiment, the upper surface of described single-stage slurries collecting ring 1 is measure-alike and corresponding with the lower surface of upper level slurries collecting ring, and the lower surface of single-stage slurries collecting ring 1 is measure-alike and corresponding with the upper surface of next stage slurries collecting ring; By the setting of said structure, effectively can improve flue gas and enter slurries gathering-device smoothly from the lower end of slurries gathering-device, avoid a large amount of flue gas to enter from the upper end of slurries gathering-device, ensure that slurries have higher utilization rate.
In the present embodiment, also comprise the slurries gathered trough 3 be arranged at below most subordinate slurries collecting ring and the lime stone slurry case being arranged at desulfurizing tower outside, described slurries gathered trough 3 and lime stone slurry case are communicated with by described carrier pipe 4; By carrying out pH value adjustment and de-sludging process to the slurries in lime stone slurry case, recirculation enters upper strata slurry spraying system, and control effectively, process is convenient, environment-friendly high-efficiency; Slurry spraying system position, upper strata prior art, does not repeat them here.
In the present embodiment, described single-stage slurries collecting ring 1 lower end is provided with annular fixed cover 5 and connection fixing block 2, the upper end of described connection fixing block 2 is fixedly connected with the lower end of single-stage slurries collecting ring 1, the lower end of connection fixing block 2 is fixedly connected with annular fixed cover 5, and described annular fixed cover 5 is coated at the outer suitable for reading of next stage slurries collecting ring; By single-stage collecting ring being put into annular fixed cover 5 and fixing, conveniently adjusted single-stage collecting ring makes single-stage collecting ring level, ensures that the slurries of single-stage collecting ring inwall evenly trickle, flexible adjustment, easy for installation.
In the present embodiment, described connection fixing block is that circumference that is multiple and annularly fixed cover 5 is evenly arranged; Arranged by multiple fixed block, avoid annular fixed cover 5 unbalance stress and rock, causing single-stage collecting ring to tilt, ensure single-stage collecting ring level.
In the present embodiment, the upper base angle of described isosceles trapezoid is 2-30 °; When the upper base angle of isosceles trapezoid is 2-30 °, by the optimal design to upper base angle, can ensure that the overall structure of slurries gathering-device is simply compact and effectively can improve desulfuration efficiency with interior wall construction, make desulfurizing tower more efficient.
In the present embodiment, the described distance crossing cigarette gap 6 is 5-50cm; By to the optimal design crossing cigarette gap 6 distance, ensure efficiently entering in slurries gathering-device of flue gas, avoid flue gas and slurry liquid contacts abundant.
In the present embodiment, the upper base angle of described isosceles trapezoid is preferably 15 °, and the described distance crossing cigarette gap 6 is preferably 25cm; By above-mentioned design, rational in infrastructure, desulfuration efficiency is the highest.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. one kind for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: comprise and be arranged at desulfurizing tower internal upper part for collecting the slurries gathering-device of upper strata sprayed slurry, the slurries collected are delivered to desulfurizing tower outside by a carrier pipe by described slurries gathering-device.
2. according to claim 1 for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: described slurries gathering-device comprises and being fixedly installed successively from top to bottom by multiple single-stage slurries collecting ring and the multistage slurries collecting ring that forms, and the face size of described each single-stage slurries collecting ring reduces successively from top to bottom and was provided with cigarette gap between adjacent single-stage slurries collecting ring.
3. according to claim 2 for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: the radial section of described single-stage slurries collecting ring is isosceles trapezoid.
4. according to claim 2 for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: the upper surface of described single-stage slurries collecting ring is measure-alike and corresponding with the lower surface of upper level slurries collecting ring, the lower surface of single-stage slurries collecting ring is measure-alike and corresponding with the upper surface of next stage slurries collecting ring.
5. according to claim 2 for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: also comprise the slurries gathered trough be arranged at below most subordinate slurries collecting ring and the lime stone slurry case being arranged at desulfurizing tower outside, described slurries gathered trough is communicated with by described carrier pipe with lime stone slurry case.
6. according to claim 3 for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: described single-stage slurries collecting ring lower end is provided with annular fixed cover and connection fixing block, the upper end of described connection fixing block is fixedly connected with the lower end of single-stage slurries collecting ring, the lower end of connection fixing block is fixedly connected with annular fixed cover, and described annular fixed cover is coated at the outer suitable for reading of next stage slurries collecting ring.
7. according to claim 6 for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: described connection fixing block is that circumference that is multiple and annularly fixed cover is evenly arranged.
8. according to claim 3 for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: the upper base angle of described isosceles trapezoid is 2-30 °.
9. according to claim 2 for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: the described distance crossing cigarette gap is 5-50cm.
10. according to claim 8 for the slurries gathering-device assembly in wet desulfuration tower, it is characterized in that: the upper base angle of described isosceles trapezoid is 15 °, the described distance crossing cigarette gap is 25cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304388.9A CN104984655A (en) | 2015-06-05 | 2015-06-05 | Slurry gathering device assembly used in wet desulfurization tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304388.9A CN104984655A (en) | 2015-06-05 | 2015-06-05 | Slurry gathering device assembly used in wet desulfurization tower |
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| CN104984655A true CN104984655A (en) | 2015-10-21 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55142529A (en) * | 1979-03-30 | 1980-11-07 | Cottrell Res Inc | So2 washing system for desulfurizing flue gas |
| US5451250A (en) * | 1994-05-11 | 1995-09-19 | The Babcock & Wilcox Company | Method of convert a double-loop flue gas desulfurization system to a single-loop system |
| CN103768924A (en) * | 2014-02-20 | 2014-05-07 | 北京中能诺泰节能环保技术有限责任公司 | Method and device for further purifying wet desulfurization purified flue gas |
| CN103908879A (en) * | 2014-03-14 | 2014-07-09 | 中国石油大学(北京) | Flue gas dust removal desulphurization system of double-circulation Venturi rod tower |
| CN204247065U (en) * | 2014-11-19 | 2015-04-08 | 山东大学 | Single tower Two-way Cycle wet flue gas desulfurization tower cascade type liquid collector |
| CN204656335U (en) * | 2015-06-05 | 2015-09-23 | 中电投远达环保工程有限公司 | Staged slurries gathering-device assembly in desulfurizing tower |
-
2015
- 2015-06-05 CN CN201510304388.9A patent/CN104984655A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55142529A (en) * | 1979-03-30 | 1980-11-07 | Cottrell Res Inc | So2 washing system for desulfurizing flue gas |
| US5451250A (en) * | 1994-05-11 | 1995-09-19 | The Babcock & Wilcox Company | Method of convert a double-loop flue gas desulfurization system to a single-loop system |
| CN103768924A (en) * | 2014-02-20 | 2014-05-07 | 北京中能诺泰节能环保技术有限责任公司 | Method and device for further purifying wet desulfurization purified flue gas |
| CN103908879A (en) * | 2014-03-14 | 2014-07-09 | 中国石油大学(北京) | Flue gas dust removal desulphurization system of double-circulation Venturi rod tower |
| CN204247065U (en) * | 2014-11-19 | 2015-04-08 | 山东大学 | Single tower Two-way Cycle wet flue gas desulfurization tower cascade type liquid collector |
| CN204656335U (en) * | 2015-06-05 | 2015-09-23 | 中电投远达环保工程有限公司 | Staged slurries gathering-device assembly in desulfurizing tower |
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Application publication date: 20151021 |