CN206444419U - A kind of slurries isolating device and desulfurizing tower in wet desulfuration tower - Google Patents

Abstract

The utility model discloses a kind of slurries isolating device and desulfurizing tower in wet desulfuration tower, slurries isolating device includes bottom plate, and the bottom plate is provided with some space bars, the adjacent space bar of each two and reservoir of the bottom plate formation with receiving space；Multiple open regions are arranged at intervals with the bottom plate, the open region upper end is correspondingly arranged on collecting tank.The present apparatus is installed between absorption tower slurries spraying layer and washing spraying layer, there is certain mounting distance with bottom spraying layer and upper water washing and spraying layer, beneficial to the time of contact that is uniform and taking into full account washing spray liquid and flue gas of flue gas in absorption tower, it is ensured that clean result.

Description

A kind of slurries isolating device and desulfurizing tower in wet desulfuration tower

Technical field

The utility model is related to industrial waste gas processing correlative technology field, specifically, is to be related to one kind to take off for wet method Slurries isolating device and desulfurizing tower in sulphur tower.

Background technology

Sulfur dioxide in fire coal boiler fume is one of main source of atmosphere pollution, and ammonia desulfurizing process is coal-fired pot One of main method that kiln gas desulfurized treatment is used.

With the implementation of new National Emission Standard, in the ammonia type flue gas desulfurizing project much put into operation, although SO is disclosure satisfy that in the ammonia process of desulfurization equipment of operation₂Qualified discharge, but its escaping of ammonia rate is high and the ammonia process of desulfurization after discharge it is wet Contain substantial amounts of ammonium salt in flue gas, so as to cause very serious flue gas conditions of streaking.

One layer of washing spray must be set up in ammonia flue gas desulfurization tower afterbody to solve flue gas tailing problem.Set up water washing spray Absorption tower after pouring can sufficiently be washed the ammonium salt escaped after the ammonia process of desulfurization, and the flue gas for mitigating the ammonia process of desulfurization is dragged Tail problem.And it is the recycling for ensureing normal water balance and shower water in absorption tower system, it is necessary to set up in absorption tower Wash the isolation collection device of spray liquid.

The now common liquid form that connects mainly has the circular gas cap, taper of rising to rise the inflator shape similar with disc type liquid receptacle etc. Formula.Several liquid dish resistances are big above, and leakage rate is high and processing and fabricating is difficult.

Therefore, how to design one kind and connect liquid device, while making it have lower cost, also connect liquid effect with higher The problem of rate is those skilled in the art's urgent need to resolve.

Utility model content

The utility model is in order to solve the above problems, it is proposed that a kind of slurries isolating device in wet desulfuration tower and Desulfurizing tower, the problems such as the utility model overcomes the high-drag of existing type liquid dish and high leakage rate, it is ensured that maximum opens Porosity, minimum resistance and minimum leakage rate.

First purpose of the present utility model is to provide a kind of slurries isolating device in wet desulfuration tower, and the device leads to The cooperation of collecting tank and reservoir is crossed, while the device is had compared with high opening rate, has that resistance is small and the low advantage of leakage rate concurrently, While ensure that slurries isolation, the desulfuration efficiency of wet desulfuration tower is improved, spray liquid is effectively reclaimed, reduces operating cost, Environmental protection.

Second purpose of the present utility model is to provide a kind of desulfurizing tower, available for the separation and recovery of gas and spray liquid, So as to be conducive to flue gas desulfurization improvement and the work of coal fired plant.

To achieve these goals, the utility model is adopted the following technical scheme that：

A kind of slurries isolating device in wet desulfuration tower, including bottom plate, the bottom plate are provided with some space bars, The adjacent space bar of each two and reservoir of the bottom plate formation with receiving space；Multiple openings are arranged at intervals with the bottom plate Area, the open region upper end is correspondingly arranged on collecting tank, makes the flue gas of lower section on the gap between open region, collecting tank Rise, the slurries sprayed with washing spraying layer are fully contacted.

Further, the slurries isolating device is arranged in absorption tower, positioned at washing spraying layer and slurries spraying layer it Between.Realize the rising of flue gas and isolating for washing spray liquid and slurries spray liquid.

Further, the open region is arranged between two adjacent space bars.

Open region sets several columns through hole, bar seam or/and grid.

In actual applications, it can be sprayed according to specific diameter in wet desulfuration tower and washing spraying layer and slurries The difference of a variety of performances such as distance, flue gas flow rate or the spray flow of drenching layer, flow velocity is selected and adjusted.It is not limited to Through hole, bar seam or the form such as grid, as long as ensureing that flue gas can pass through, various forms of openings can be with.

The size of opening, form, shape can be with identical simultaneously, can also be different, meanwhile, opening can uniformly divide in array Cloth, can also be laid staggeredly.Such as hole can just be further designed to circular hole, square hole, elliptical aperture, hexagonal hole etc., but not Which type of form is managed, its central role is to provide slype of the flue gas by bottom plate, these are people in the art The scheme that member can realize easily under the enlightenment of operation principle of the present utility model, ought to belong to protection model of the present utility model Enclose.

Further, the edge of the collecting tank has an additional height relative to centre position.Preferably V-shape, U-shaped Type.The form of certain collecting tank can use a variety of, and the utility model gives several preferred schemes, these shape this areas Technical staff can be designed to arbitrary shape as needed completely, such as extend to W types, tubular etc., but regardless of sample Form, its central role is collecting tank is had certain ability for accommodating spray liquid, is new in this practicality for this point It can be realized easily under the inspiration of type.

Further, the edge of the collecting tank has an angle relative to tower body sidewall.Preferably V-shape or opening is terraced Shape etc..Certainly, the form of collecting tank herein can use a variety of, and the utility model gives several preferred schemes, these Shape those skilled in the art can be designed to arbitrary shape as needed completely, but its central role makes in collecting tank Liquid can be overflowed as exceeded after its receiving space from edge, and inflow is arranged in the reservoir of lower end, be carried out for this point Conversion, the simple replacement carried out under enlightenment of the present utility model all should be belonged to.

It is preferred that, the space bar and bottom plate are perpendicular.Certainly, space bar can also have an angle with bottom plate, work as tool When having angle, it is the adjacent space bar and bottom plate for the both sides that corresponding position is projected at collecting tank edge than more preferably scheme With angle, angular range is 1 ° -30 °, make above-mentioned two space bar with the opening of the receiving space of bottom plate formation for more to Lower extension, receiving space is smaller, makes the spray liquid that collecting tank overflows be not easy to flow to open region, causes leakage.

Further, the collecting tank is more than the perforated area of open region in the projected area of bottom plate.This design method, The washing spray liquid that collecting tank is not collected is ensure that, can be fallen into reservoir, rather than as perforate drops to slurries spray Drenching layer, causes the phenomenon of leakage.

Further, the ratio of the gross area of the area of the open region and the bottom plate is not less than 40%, to cause cigarette Gas can be passed through.Simultaneously as collecting tank has being staggered for position with open region in longitudinal direction, and it is seamed between collecting tank Gap, this design causes flue gas after smoothness is by bottom plate, then is risen by the gap between collecting tank, has on the one hand delayed cigarette The velocity of liquid assets of gas, on the other hand increases contact area and time of contact of the flue gas with washing spray liquid, can be abundant Depart from ammonium salt, improve efficiency.

Further, it is provided with drain port at the bottom edge, the drain port is by drain pipe by the spray being collected into Liquid feeding washing spray circulatory pool is drenched, with recycling.

Certainly, the quantity of drain port, size etc. can according to collecting tank, the quantity of reservoir, volume, the flow velocity of spray or The factors such as flow are adjusted, as drain port has two, are arranged at the two ends etc. of bottom plate, these parameters those skilled in the art are complete It can design as needed entirely, but it belongs to simple replacement, all should belong to and be edified by the utility model scheme, be included into this reality With new protection domain.

Further, overflow baffle is provided with the bottom edge, prevents the spilling of the washing spray liquid in reservoir. Meanwhile, control valve can also be set on drain pipe, the mutual cooperation of control valve is arranged at by the height of overflow baffle, it is real Existing isolating device holds the adjustable of liquid height, be capable of the size of abundant hydrous water washing and spraying amount, it is to avoid the too high caused lotus of liquid level Carry increase and liquid level it is too low caused by the problem of wash away serious.

Further, the bottom plate passes through in support beam installation and absorption tower.

Certainly, the quantity of support beam, set-up mode etc. can according to setting hold liquid altitude range, each support beam branch The factors such as support force are adjusted, as support beam has multiple, are uniformly laid in the absorption tower section of the lower end of bottom plate, or support beam All multimodes such as to be laid in the section on absorption tower with grating type, these forms those skilled in the art completely can be according to need Design, but it belongs to simple replacement, the conversion carried out for this point, all should belong to and enter under enlightenment of the present utility model Capable simple replacement.

Further, the collecting tank is by supporting floor to be arranged at absorption tower section.Likewise, the number of support floor Amount, set-up mode etc. can be according to collecting tank weight, capacity, the factor such as support force of each support floor is adjusted, such as Support floor has multiple, is uniformly laid in the absorption tower section of the lower end of bottom plate, these forms those skilled in the art are complete It can design as needed, but it belongs to simple replacement, the conversion carried out for this point, all should belong in the utility model Enlightenment under the simple replacement that carries out.

Further, all parts outer surface of the slurries isolating device is provided with erosion shield, strengthens anticorrosion Ability, to extend useful life of the present apparatus in sweetening process.

Be disposed with from top to bottom in a kind of desulfurizing tower, including tower body, the tower body washing spraying layer, above-mentioned slurries every From device and slurries spraying layer, the washing spray liquid that the slurries isolating device is collected delivers to water by washing the spray circulatory system Washing and spraying layer is recycled.

Further, the slurries spraying layer and washing spraying layer can have multilayer.Multilayer is mainly designed to carry The effect of height spray.

Further, the washing spraying layer upper end is additionally provided with demister.When in use, except demister, in desulfurization Corresponding fluid machinery or power source (such as blower fan, pump equipment) or detection device etc. are set in tower, belonged to new in this practicality The simple modifications that the enterprising step of the operation principle of type is carried out, without paying any creative work i.e. it is contemplated that.

Compared with prior art, the beneficial effects of the utility model are：

(1) present apparatus is installed between absorption tower slurries spraying layer and washing spraying layer, with bottom spraying layer and upper water Washing and spraying layer has certain mounting distance, beneficial to flue gas uniform in absorption tower and takes into full account washing spray liquid and flue gas Time of contact, it is ensured that clean result.

(2) holding liquid height can be adjustable according to the size for washing spray flux, and hydrophobic pipe joint can install control valve and and water Washing and spraying pump is chain, it is to avoid the problem of washing away serious caused by load increase and liquid level caused by liquid level is too high are too low.

(3) when installing, it is only necessary to a few road support beams are installed on absorption tower and are subject to support, no matter newly-built or transformation project It is suitable.

(4) have the advantages that transformation amount is small, it is notable to invest low, efficiency high, stable, flue gas washing effect.

Brief description of the drawings

The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.

Fig. 1 is structure top view of the present utility model；

Fig. 2 is structural side view of the present utility model；

Fig. 3 is desulfurizing tower schematic diagram of the present utility model；

Wherein：1-1, hydrophobic pipe joint, 1-2, reservoir, 1-3, collecting tank, 1-4, support beam, 1-5, overflow baffle, 1- 6th, bottom plate；2-1, tower body, 2-2, demister, 2-3, washing spraying layer, 2-4, the first slurries spraying layer, 2-5, the second slurries spray Layer, 2-6, washing spray circulatory pool, 2-7, washing spray pump.

Embodiment：

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.

It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.

Embodiment 1 is in a kind of typical embodiment of the application, as shown in Figure 1 and Figure 2, one kind is used for wet desulphurization Slurries isolating device in tower, is installed between absorption tower slurries spraying layer and washing spraying layer 2-3, with bottom spraying layer and upper Portion washing spraying layer 2-3 has certain mounting distance, beneficial to flue gas uniform in absorption tower and takes into full account washing spray liquid With the time of contact of flue gas, it is ensured that clean result.

Comprising collecting tank 1-3, reservoir 1-2, rise the structures such as gas port, overflow baffle 1-5, drain pipe and support floor.Should Device collecting tank 1-3 is supported by supported underneath floor, and device reservoir 1-2 bottom plates 1-6 keeps higher percent opening, the dress Put drain pipe and be distributed in reservoir 1-2 both sides, device overflow baffle 1-5 is arranged in reservoir 1-2 and rises gas port surrounding.

Reservoir 1-2 is installed on the reserved support beam 1-4 in tower.Open region is perforate, and reservoir 1-2 percent openings are 40%, percent opening is distributed in absorption tower section, to ensure flue gas uniformly through absorption tower and fully be contacted with sprayed slurry.

Collecting tank 1-3 form is V-shape.

Collecting tank 1-3 projected areas are more than reservoir 1-2 perforated areas.

It is uniform that collecting tank 1-3 supported underneath floors prolong collecting tank 1-3V type sections.

Drain port is distributed on reservoir 1-2 bottom plates 1-6, and quantity is 2, to ensure that collection liquid is discharged in time.Flue gas is certainly Flow uniformly through, and fully contacted with sprayed slurry between V-type collecting tank 1-3 and collecting tank 1-3 ribs gap on down.

Embodiment 2

It is that bottom plate 1-6 is adapted with the shapes and sizes of tower body 2-1 sections with the difference of embodiment 1, drain port is 4, Laid along bottom plate 1-6 even circumferentials.The opening mode of reservoir 1-2 open region is thin seam, and aperture opening ratio area is 50%, and Interval between collecting tank 1-3 edges is less than the half of every section of open region area.

Flue gas flows through slurries isolation collection device, the slurry sprayed with washing spraying layer 2-3 from bottom to top in absorption tower Liquid is fully contacted, and is removed to pass through after the ammonium salt carried secretly in flue gas and is discharged after demister 2-2.Slurries isolation collection device is collected The shower water of gas fume washing spray is discharged into washing spray circulatory pool 2-6 through the device underflow pipe and recycled, the circulatory pool upper end Washing spray pump 2-7 is provided with to provide circulation power.

Embodiment 3

It is with the difference of embodiment 1, embodiment 2, bottom plate 1-6 is adapted with the shapes and sizes of tower body 2-1 sections, dredges The mouth of a river is 3, is laid along bottom plate 1-6 even circumferentials.And support beam 1-4 is identical with the number for the reservoir 1-2 that space bar is formed, One-to-one corresponding is arranged at reservoir 1-2 in position corresponding bottom plate 1-6.

Collecting tank 1-3 shape is inverted trapezoidal wide at the top and narrow at the bottom from the side, and, it is sideways 45 with the angle of vertical plane Degree.

The tower slurries spraying layer of desulfurizing tower is two layers, including the upper and lower tower slurries spraying layer.

Embodiment 4

It is that bottom plate 1-6 edges are provided with overflow baffle 1-5, prevent reservoir with preceding several embodiment differences The spilling of washing spray liquid in 1-2.Meanwhile, control valve can also be set on drain pipe, pass through overflow baffle 1-5 height The mutual cooperation of control valve is arranged at, realizes that isolating device holds the adjustable of liquid height, being capable of abundant hydrous water washing and spraying amount Size, it is to avoid the problem of washing away serious caused by load increase and liquid level caused by liquid level is too high are too low.

Collecting tank 1-3 is staggeredly located with open region in longitudinal direction, and has gap between collecting tank 1-3, and this design makes Obtain flue gas after smoothness is by bottom plate 1-6, then by the gap between collecting tank 1-3 to rise, on the one hand delay the stream of flue gas Logical speed, on the other hand increases contact area and time of contact of the flue gas with washing spray liquid, can be sufficiently disengaged from ammonium Salt, improves efficiency.

Washing spraying layer 2-3 upper ends are additionally provided with demister 2-2.And washing spraying layer 2-3 and tower slurries spraying layer are set There is flow detection device.

Embodiment 5

Reservoir 1-2 is installed on the reserved support beam 1-4 in tower.Open region is perforate, and reservoir 1-2 percent openings are 45%, percent opening is distributed in absorption tower section, to ensure flue gas uniformly through absorption tower and fully be contacted with sprayed slurry.

Collecting tank 1-3 form is V-shape.

Collecting tank 1-3 projected areas are more than reservoir 1-2 perforated areas.

It is grid-like to support floor.

Space bar and bottom plate 1-6 have both sides that corresponding position is projected at an angle, collecting tank 1-3 edges it is adjacent between Dividing plate has angle with bottom plate 1-6, and angular range is 15 °, makes above-mentioned two space bar and the receiving space of bottom plate 1-6 formation More to extend downwardly at opening, receiving space is smaller, makes the spray liquid that collecting tank 1-3 overflows be not easy to flow to open region, causes Leakage.

All parts (bottom plate 1-6, collecting tank 1-3, reservoir 1-2 etc.) outer surface of slurries isolating device is provided with anti-corrosion Erosion resisting coating, strengthens anti-corrosion capability, to extend useful life of the present apparatus in sweetening process.

The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.

It is not new to this practicality although above-mentioned embodiment of the present utility model is described with reference to accompanying drawing The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability Field technique personnel need not pay the various modifications that creative work can make or deform still in protection model of the present utility model Within enclosing.

Claims (10)

1. a kind of slurries isolating device in wet desulfuration tower, it is characterized in that：Including bottom plate, the bottom plate is provided with some Space bar, the adjacent space bar of each two and reservoir of the bottom plate formation with receiving space；It is arranged at intervals with the bottom plate Multiple open regions, the open region upper end is correspondingly arranged on collecting tank.

2. a kind of slurries isolating device in wet desulfuration tower as claimed in claim 1, it is characterized in that：The open region It is arranged between two adjacent space bars；

Or open region sets several columns through hole, bar seam or/and grid.

3. a kind of slurries isolating device in wet desulfuration tower as claimed in claim 1 or 2, it is characterized in that：The collection The edge of liquid bath has an additional height relative to centre position；

Or the edge of the collecting tank has an angle relative to tower body sidewall.

4. a kind of slurries isolating device in wet desulfuration tower as claimed in claim 1 or 2, it is characterized in that：Described Dividing plate and bottom plate are perpendicular or with an angle.

5. a kind of slurries isolating device in wet desulfuration tower as claimed in claim 1, it is characterized in that：The collecting tank It is more than the perforated area of open region in the projected area of bottom plate；

Or the area of the open region and the ratio of the gross area of the bottom plate are not less than 40%.

6. a kind of slurries isolating device in wet desulfuration tower as described in claim 1 or 2 or 5, it is characterized in that：It is described Drain port is provided with bottom edge, the spray liquid being collected into feeding is washed Sprayer Circulation by the drain port by drain pipe Pond, with recycling.

7. a kind of slurries isolating device in wet desulfuration tower as described in claim 1 or 2 or 5, it is characterized in that：It is described Overflow baffle is provided with bottom edge,

Or control valve is set on drain pipe.

8. a kind of slurries isolating device in wet desulfuration tower as described in claim 1 or 2 or 5, it is characterized in that：It is described Bottom plate passes through in support beam installation and absorption tower；

Or the collecting tank is by supporting floor to be arranged at absorption tower section.

9. a kind of desulfurizing tower, it is characterized in that：It is disposed with washing spraying layer, power from top to bottom including tower body, in the tower body Profit requires the slurries isolating device and slurries spraying layer described in 1 or 2 or 5, the washing spray liquid that the slurries isolating device is collected Washing spraying layer is delivered to by the washing spray circulatory system to be recycled.

10. desulfurizing tower as claimed in claim 9, the slurries spraying layer and washing spraying layer have multilayer；

Or the washing spraying layer upper end is additionally provided with demister.