CN201271563Y - High-efficient granite desulfurizing tower - Google Patents
High-efficient granite desulfurizing tower Download PDFInfo
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- CN201271563Y CN201271563Y CNU2008201418096U CN200820141809U CN201271563Y CN 201271563 Y CN201271563 Y CN 201271563Y CN U2008201418096 U CNU2008201418096 U CN U2008201418096U CN 200820141809 U CN200820141809 U CN 200820141809U CN 201271563 Y CN201271563 Y CN 201271563Y
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- desulfurizing tower
- granite
- demister
- desulfurization tower
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Abstract
The utility model relates to a high-efficient granite desulfurization tower, comprising a desulfurization tower body. The desulfurization tower which is made of granite is internally provided with a fog dispersal system, a plurality of layers of spraying systems, a cyclone device and a pre-cool zone, manhole doors are arranged on the wall of the desulfurization tower body corresponding to the repair positions of the fog dispersal system, the spraying systems and the pre-cool zone; platforms and stairs are arranged outside the wall of the desulfurization tower body corresponding to the positions of the manhole doors of the fog dispersal system and the spraying systems; the pre-cool zone is fixedly connected with the desulfurization tower body in a way that a tangential line inclines downwards, and overflow ports are arranged at the bottom part of the desulfurization tower body. The high-efficient granite desulfurization tower has the advantages that a combined structure of pre-cool zone pre-spray treatment, lashed water bath, cyclone and spraying is adopted by the utility model so as to consecutively and repeatedly absorb SO2 and soak and stick smoke or even completely eliminate the SO2 and the smoke, the running is reliable, the desulfurization effect is remarkable, the desulfurization efficiency can reach over 90%; the structure is compact, the corrosion-resistant effect is good, the installation is convenient, the service life is long, the industrial and batched production can be realized, and the manufacturing and the transportation are very convenient.
Description
Technical field
The utility model relates to and belongs to the desulfur technology field, particularly relates to a kind of efficient granite desulfurizing tower.
Background technology
In the prior art, coal-burning boiler Air Pollution Control measure mainly is to adopt primary dust removing, the mode of secondary desulfurization.The more representational desulfurizing tower structure of public use at present can be divided into spray column, packed tower, plate column and bubble tower substantially.Wherein the spray column structure is comparatively simple, have advantages such as the big and gas-phase pressure drop of the area of contacting is little, but spray column exists liquid holdup little too small with liquid side mass tranfer coefficient, and gas phase and backmixing of liquid phase be important disadvantages comparatively.The advantage that packed tower has is simple in structure, be easy to adapt to various corrosive mediums and be difficult for causing solution foaming, but the shortcoming that packed tower exists mainly is: one, it can't directly remove heat from tower body, when reaction heat is higher, must take heat out of with the sensible heat form by increasing the liquid spraying amount; Two, owing to there is the problem of minimum wettability power, need adopts self to circulate under many circumstances and could guarantee the wetting substantially of filler, but this self circulation destroyed the principle of adverse current; The easy blockage phenomenon of packed tower in addition, the operation maintenance difficulty.There are shortcomings such as the big and mass transfer surfaces of gas phase flow pressure drop is less in plate column.Bubble tower exists the diameter of bubble tower unsuitable excessive, and generally in 2～3m, the liquid phase axial backmixing is very serious, difficultly reaches higher liquid-phase conversion rate in single flow reactor, and it is bigger to consume pressure drop during bubbling.In addition, the material aspect that the desulfurizing tower tower body is adopted, the employed material of desulfurizing tower mainly contains following several at present: one, adopt stainless steel material; Two, adopt the relatively cheap carbon steel of price, inwall carries out preservative treatment; Three, adopt concrete, inwall carries out ceramic tile or the BEKA plastic lining is anticorrosion.Because the desulfurizing tower interior environmental conditions is very abominable, existing acid and alkali corrosion also has Cl
-, SO
3 2-Deng corrosion, also have wearing and tearing, high temperature thermal shocking and violent temperature to become simultaneously, these have proposed very high requirement to the equipment making material, and general anti-corrosion measure is difficult to prove effective, and causes reduce service life, and often needs repairing and change parts.
Summary of the invention
The utility model provides a kind of efficient granite desulfurizing tower that precooling zone sprays processing, impact water bath, eddy flow in advance and sprays good, the easy for installation and long service life of compact conformation, the anticorrosion effect of multiple function that integrates for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: efficient granite desulfurizing tower, comprise the desulfurization tower body, it is characterized in that: the described desulfurization tower body inside that makes at granite is disposed with demister system, multilayer spray system, swirl-flow devices and precooling zone from top to bottom, and the desulfurizing tower intracoelomic cavity is that the boundary is divided into pre-cooling zone, eddy flow district, spray district and removes the fog-zone with precooling zone, swirl-flow devices, spray system and demister system; Corresponding demister system, each spray system and precooling zone maintenance position all have manhole door on the desulfurizing tower body wall, the outer corresponding demister system of desulfurizing tower body wall, each spray system manhole door position are provided with platform and the stair that are connected with platform, described precooling zone adopts the downward-sloping mode of tangent line to fixedly connected with the desulfurization tower body, is provided with overfall in desulfurization tower body bottom.
The utility model can also adopt following technical scheme:
Described demister system comprises demister blade, demister brace summer, flushing pipe and flooding nozzle, the pre-buried desulfurizing tower body wall top that is packed in of demister brace summer, the demister blade is installed on the demister brace summer, flushing pipe supports built-in fitting and fixes by bolt and desulfurization tower body, and flooding nozzle is housed on flushing pipe.
Described spray system is three layers, and spray system comprises: support built-in fitting and bolt by stainless steel and be packed in shower on the desulfurizing tower body wall, be connected with spray head by elbow on the shower.
Described swirl-flow devices is the round trip swirl-flow devices, and be positioned at the below of spray system, this swirl-flow devices comprises: the eddy flow plate bracing frame by connecting bolt is connected with the desulfurization tower body is welded with the base ring limit, outer Cheng Xuanliu plate of welding and interior Cheng Xuanliu plate on the base ring limit on eddy flow plate bracing frame.
Described precooling zone comprises: glass steel shell of fixedlying connected with the desulfurization tower body and precooling zone support, and in glass steel shell inside the precooling spray equipment are set.
Described granite desulfurization tower body is a cylindrical shape, and its tower body is a granite building material fluting filleting masonry construction, and tower body top is coniform.
The end is the inclined plane in the described granite tower body, promptly tilts towards the overfall direction.
The flooding nozzle of described demister system is full tangential jet mode, and its jet angle is 90 °.
Spray head on the described shower is equipped with 3-6 big flow spiral nozzles.
Advantage and the good effect that the utlity model has are: this granite desulfurizing tower adopts precooling zone to spray structure combining such as processing, impact water bath, eddy flow and spray in advance, makes to constitute effectively in the desulfurizing tower continuously, repeatedly to absorb SO
2With soak, cling flue dust, at last they are almost completely disposed.Efficient granite desulfurizing tower is reliable, significant desulfurization effect.Desulfuration efficiency can reach more than 90%, and drag losses is less than 800Pa.Whole device has compact conformation, and anticorrosion effect is good, and is easy for installation, last detective.Adopt grouan material to make the desulfurizing tower tower body, anticorrosion effect is good.Spray system and swirl-flow devices are all selected stainless steel for use, and nozzle adopts big flow spiral nozzle, and latus rectum is big, can not stop up.It is coniform that tower body outlet is shrunk to, the adverse effect of effectively avoiding the air-flow to desulfurizing tower to distribute and cause.This service life of equipment is long, and main equipment was above 20 years.In addition, all right batch production of efficient granite desulfurizing tower, mass manufacturing, it is very convenient to produce and transport.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is A-A cutaway view of Fig. 2;
Fig. 4 is the utility model precooling zone vertical view;
Fig. 5 is B-B cutaway view of Fig. 4;
Fig. 6 is the utility model swirl-flow devices vertical view;
Fig. 7 is C-C cutaway view of Fig. 6;
Fig. 8 is the utility model spray system structural representation;
Fig. 9 is the utility model demister system vertical view;
Figure 10 is D-D cutaway view of Fig. 9.
Among the figure: 1, granite desulfurization tower body; 2, precooling zone; 2-1, housing; 2-2, precooling spray equipment; 2-3, precooling zone supports; 3, swirl-flow devices; 3-1, connecting bolt; 3-2, base ring limit; 3-3, eddy flow plate bracing frame; 3-4, outer Cheng Xuanliu plate; 3-5, interior Cheng Xuanliu plate; 4, spray system A, B, C; 4-1, spray head; 4-2, elbow; 4-3, shower; 4-4, stainless steel supports built-in fitting; 4-5, bolt; 5, demister system; 5-1, demister blade; 5-2, demister brace summer; 5-3, flushing pipe; 5-4, flooding nozzle; 5-5, flushing pipe supports built-in fitting; 5-6, bolt; 6, overfall; 7, tower hoop; 8, platform; 9, stair; 10, manhole door.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1-Fig. 3, efficient granite desulfurizing tower comprises the desulfurization tower body 1 that grouan material is made, and this granite desulfurization tower body is a cylindrical shape, and its tower body is a granite building material fluting filleting masonry construction, and tower body top is coniform.Be provided with overfall 6 in desulfurization tower body 1 bottom, be fastened with tower hoop 7 at a certain distance on the whole desulfurizing tower external body, tower hoop quantity is 3-6.Be disposed with demister system 5, multilayer spray system 4A, 4B and 4C, swirl-flow devices 3 and precooling zone 2 from top to bottom in granite system desulfurization tower body inside, the desulfurizing tower intracoelomic cavity is that the boundary is divided into pre-cooling zone, eddy flow district, spray district and removes the fog-zone with precooling zone, swirl-flow devices, spray system and demister system.Corresponding demister system 5, each spray system 4A, 4B, 4C and precooling zone 2 maintenance positions all have manhole door 10 on the desulfurizing tower body wall, the outer corresponding demister system of desulfurizing tower body wall, each spray system manhole door position are provided with platform 8 and the stair 9 that are connected with platform, described platform and stair all adopt carbon steel to make, manhole door 10 quantity are 5, for fiberglass is made.
See also Fig. 4 and Fig. 5, described precooling zone 2 comprises: glass steel shell 2-1 of fixedlying connected with desulfurization tower body 1 and precooling zone support 2-3, be provided with precooling spray equipment 2-2 in glass steel shell 2-1 inside, precooling spray equipment 2-2 adopts stainless steel 316L material to make, support 2-3 as supporting in the Stainless Steel Shell bottom by precooling zone, described precooling zone adopts the downward-sloping mode of tangent line to fixedly connected with the desulfurization tower body.
See also Fig. 6 and Fig. 7, the round trip swirl-flow devices that described swirl-flow devices 3 is made for stainless steel 316L material, and be positioned at the below of spray system 4, this swirl-flow devices comprises: the eddy flow plate bracing frame 3-3 that is connected with desulfurization tower body 1 by connecting bolt 3-1, on eddy flow plate bracing frame, be welded with base ring limit 3-2, outer Cheng Xuanliu plate 3-4 of welding and interior Cheng Xuanliu plate 3-5 on the base ring limit.
See also Fig. 8, described spray system is three layers, be followed successively by 4A, 4B and 4C, spray system comprises: the pre-buried stainless steel that is fixed on the desulfurization tower body supports built-in fitting 4-4, stainless steel shower 4-3 supports built-in fitting 4-4 by bolt 4-5 with nut and stainless steel fixedlys connected, be connected with stainless steel spray head 4-1 by stainless steel bend 4-2 on the stainless steel shower, the spray head on the described shower is equipped with 3-6 big flow spiral nozzles.
See also Fig. 9 and Figure 10, described demister system 5 comprises demister blade 5-1, demister brace summer 5-2, flushing pipe 5-3 and flooding nozzle 5-4, adopt carbon steel material to make and the pre-buried desulfurizing tower body wall top that is packed in of the antiseptic demister brace summer of process, demister blade 5-1 is installed on the demister brace summer, the demister blade adopts poly-third vinyl material of modification, its maximum operating temp is 130 ℃, demister blade 5-1 adopts unit system form, and with the demister brace summer as support.It is pre-buried fixing with the desulfurization tower body that flushing pipe supports built-in fitting 5-5, and flushing pipe supports built-in fitting 5-5 and by bolt 5-6 and nut and flushing pipe 5-3 flooding nozzle 5-4 is housed on flushing pipe.Described flushing pipe adopts poly-third vinyl material of modification, and operating temperature allows for 130 ℃, and flooding nozzle is full tangential jet mode, and its jet angle is 90 °, and 150% stack (on average) is arranged, and guarantees 100% developing result.
Operation principle of the present utility model is:
Efficient granite desulfurizing tower is mainly used in the coal-burning boiler desulfurizer.The flue gas that is emitted from boiler will flow into desulfurizing tower from precooling zone 2.Since flue gas be a kind of temperature about 180 ℃, contain the hot gas of SO2 and flying dust, after entering precooling zone 2, flue gas just with its in the atomizing shape high pressure of the precooling spray equipment that is provided with 2-2 ejections spray shape that contains alkali lye water and spray system 4 spray respectively at precooling zone 2 and the alkalies curtain that on granite desulfurization tower body 1 inwall, forms and contact as water curtain.Atomizing shape high pressure contain alkali lye water mainly absorb SO2 and with it reaction so that SO2 is generated sulphite and sulfate, and in the flue gas flying dust under the acting in conjunction of acceleration of gravity and centrifugal force, the water seal face of impact forms the spray zone, and ash-laden gas has further obtained purification again in the spray zone.Simultaneously; part alkali lye water brings the heat vaporization to form moist steam flue gas; increased fully contacting of alkali lye and moist steam greatly, impel sulfur dioxide further by alkali lye absorb, reaction, and impel fly ash granule or dust to be soaked the liquid that becomes to contain ash to enter at the bottom of the tower in the loop slurry.
Flue gas enters swirl-flow devices 3 subsequently, it mainly act as flue gas water conservancy diversion, humidification desulfurization, make the energy (pressure of air-introduced machine etc.) of the flue gas utilization that enters desulfurizing tower inside itself be forced to along granite desulfurization tower body 1 inner wall surrounding rise, by changing the size and Orientation of exhaust gases passes, make the pressure of gas can become gas kinetic energy, strengthened air velocity, grit in the flue gas is thrown to granite desulfurization tower body 1 inwall under action of centrifugal force, swept away by top-down moisture film, and discharge from desulfurizing tower bottom overfall 6 with absorption liquid, play the dedusting effect.The sheet of swirl-flow devices 3 connect angle install the alkali lye part make spray through the eddy flow plate current to granite desulfurization tower body 1 inwall and make spinning disk form moisture film, because action of centrifugal force, the particle that particle diameter is big is thrown toward fiberglass desulfurization tower body 1 inwall moisture film face, discharge outside the tower with absorption liquid, the particle that particle diameter is little and the alkali lye face of eddy flow plate contact, the flow process of ash-laden gas is increased, increased the flue dust reaction time, strengthened contact area with alkali lye.
Three grades of aqueous slkali spray systems 4 (three layers of A, B, C) are installed above swirl-flow devices 3, effectively increase the contact area of flue gas and aqueous slkali, a large amount of water smokes contact with flue gas in the tower, by prolong to absorb, in and time of sulfur dioxide in flue gas, increase adsorption area, thereby obtain higher desulfuration efficiency.Constantly form heterogeneous dispersion primitive with the alkali lye of top spray system 4 ejections, these heterogeneous primitives constantly contact, collision, coalescence, realize the refinement of primitive, improve alternate contact area greatly, realize Surface Renewal at a high speed between primitive, keep stable mass transfer at a high speed, when having chemical reaction, alternate with balance, chemical reaction is remained at a high speed, this just improves the desulfuration efficiency of desulphurization plant greatly.
After three times in the tower continuous sprays absorptions, flue gas after desulfurization enters the demister system 5 on tower top, when the flue gas that has drop enters the bending channel of demister system 5, flue gas is changed direction rapidly, continuously, effect because of inertia coalescence and collision, under inertia force and gravity effect with air-flow in droplets entrained separate, form current and drop down onto the desulfurizing tower bottom, flue gas enters chimney after reaching the demist requirement.The cutting particle diameter of demist is 25-30um, can control the atomizing particle size and the secondary entrainment of column plate preferably, and the removing fog effect and can reach more than 99% of demister system 5 throwing under the situation that alkali puts in place, can reach desirable dedusting, desulfurized effect.For preventing demister blade 5-1 blockage phenomenon, guarantee the normal operation of equipment, regularly demister system 5 is washed.
According to the selected former air-introduced machine model of different model boiler, Industrial Stoves, produce exhaust gas volumn, this desulfurizing tower is not to change the former aim that is designed to, make every effort to reduce SR, test through reality, this efficient granite desulfurizing tower is less than the resistance of other various wet type desulfurizing towers, has alleviated the burden of id-motor.Every control parameter of efficient granite desulfurizing tower:
(1) flue gas flow rate is 3～4.5m/s;
(2) the spray atomizing particle is controlled at 2500～3000 μ m, spray liquid coverage rate 150%～300%;
(3) inlet temperature Tin＜180 ℃, outlet temperature Tout＜100 ℃;
(4) liquid-gas ratio is 1～3L/M3;
(5) whole desulfurizing tower resistance＜800Pa.
(6) desulfuration efficiency〉90%.
Claims (9)
1. efficient granite desulfurizing tower, comprise the desulfurization tower body, it is characterized in that: the described desulfurization tower body inside that makes at granite is disposed with demister system, multilayer spray system, swirl-flow devices and precooling zone from top to bottom, and the desulfurizing tower intracoelomic cavity is that the boundary is divided into pre-cooling zone, eddy flow district, spray district and removes the fog-zone with precooling zone, swirl-flow devices, spray system and demister system; Corresponding demister system, each spray system and precooling zone maintenance position all have manhole door on the desulfurizing tower body wall, the outer corresponding demister system of desulfurizing tower body wall, each spray system manhole door position are provided with platform and the stair that are connected with platform, described precooling zone adopts the downward-sloping mode of tangent line to fixedly connected with the desulfurization tower body, is provided with overfall in desulfurization tower body bottom.
2. efficient granite desulfurizing tower according to claim 1, it is characterized in that: described demister system comprises demister blade, demister brace summer, flushing pipe and flooding nozzle, the pre-buried desulfurizing tower body wall top that is packed in of demister brace summer, the demister blade is installed on the demister brace summer, flushing pipe supports built-in fitting and fixes by bolt and desulfurization tower body, and flooding nozzle is housed on flushing pipe.
3. efficient granite desulfurizing tower according to claim 1, it is characterized in that: described spray system is three layers, spray system comprises: support built-in fitting and bolt by stainless steel and be packed in shower on the desulfurizing tower body wall, be connected with spray head by elbow on the shower.
4. efficient granite desulfurizing tower according to claim 1, it is characterized in that: described swirl-flow devices is the round trip swirl-flow devices, and be positioned at the below of spray system, this swirl-flow devices comprises: the eddy flow plate bracing frame that is connected with the desulfurization tower body by connecting bolt, on eddy flow plate bracing frame, be welded with the base ring limit, outer Cheng Xuanliu plate of welding and interior Cheng Xuanliu plate on the base ring limit.
5. efficient granite desulfurizing tower according to claim 1, it is characterized in that: described precooling zone comprises: glass steel shell of fixedlying connected with the desulfurization tower body and precooling zone support, and in glass steel shell inside the precooling spray equipment are set.
6. efficient granite desulfurizing tower according to claim 1 is characterized in that: described granite desulfurization tower body is a cylindrical shape, and its tower body is a granite building material fluting filleting masonry construction, and tower body top is coniform.
7. efficient granite desulfurizing tower according to claim 1 is characterized in that: the end is the inclined plane in the described granite tower body, promptly tilts towards the overfall direction.
8. efficient granite desulfurizing tower according to claim 2 is characterized in that: the flooding nozzle of described demister system is full tangential jet mode, and its jet angle is 90 °.
9. efficient granite desulfurizing tower according to claim 3 is characterized in that: the spray head on the described shower is equipped with 3-6 big flow spiral nozzles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201418096U CN201271563Y (en) | 2008-09-02 | 2008-09-02 | High-efficient granite desulfurizing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201418096U CN201271563Y (en) | 2008-09-02 | 2008-09-02 | High-efficient granite desulfurizing tower |
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| CN201271563Y true CN201271563Y (en) | 2009-07-15 |
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| CNU2008201418096U Expired - Fee Related CN201271563Y (en) | 2008-09-02 | 2008-09-02 | High-efficient granite desulfurizing tower |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363092A (en) * | 2011-06-28 | 2012-02-29 | 顾忠华 | Pretreatment device of seawater desulphurization apparatus |
| CN102363091A (en) * | 2011-06-28 | 2012-02-29 | 顾忠华 | Seawater desulphurization device for ship tail gas treatment system |
| CN103028319A (en) * | 2012-11-23 | 2013-04-10 | 广东依科电力技术有限公司 | Smoke inlet of desulfurizing tower |
| CN103191636A (en) * | 2013-03-21 | 2013-07-10 | 北京中冶设备研究设计总院有限公司 | Desulfurizing tower device |
| CN103521019A (en) * | 2013-10-23 | 2014-01-22 | 昆山市盛兴设备安装有限公司 | Washing tower |
-
2008
- 2008-09-02 CN CNU2008201418096U patent/CN201271563Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363092A (en) * | 2011-06-28 | 2012-02-29 | 顾忠华 | Pretreatment device of seawater desulphurization apparatus |
| CN102363091A (en) * | 2011-06-28 | 2012-02-29 | 顾忠华 | Seawater desulphurization device for ship tail gas treatment system |
| CN103028319A (en) * | 2012-11-23 | 2013-04-10 | 广东依科电力技术有限公司 | Smoke inlet of desulfurizing tower |
| CN103191636A (en) * | 2013-03-21 | 2013-07-10 | 北京中冶设备研究设计总院有限公司 | Desulfurizing tower device |
| CN103521019A (en) * | 2013-10-23 | 2014-01-22 | 昆山市盛兴设备安装有限公司 | Washing tower |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20090715 Termination date: 20160902 |