CN212651614U

CN212651614U - Spray tower

Info

Publication number: CN212651614U
Application number: CN202020822202.5U
Authority: CN
Inventors: 蒋伟; 刘晔; 彭陈进
Original assignee: Sichuan Lidahuarui Machinery Co ltd
Current assignee: Sichuan Lidahuarui Machinery Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-03-05
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a spray tower, comprising a tower body, tower body lower part set up the air inlet, the top sets up the gas outlet, the tower body in set up and sprayed the layer to below spraying the layer is provided with the air current and distributes the layer, the air current distribute the layer and include whirl board and the baffle layer along tower body cross section, the baffle layer on seted up a plurality of through-holes, the whirl board device is in through-hole department. Spray column carry out the hybrid processing of gas-liquid simultaneously through the whirl board that sets up on the cross section direction of tower body side by side, can improve the homogeneity that the air current distributes on the cross section direction of tower body for air current and liquid are abundant more, even hybrid contact, improve the dust removal purification effect to gas.

Description

Spray tower

Technical Field

The utility model relates to a waste gas treatment device technical field especially relates to a spray column.

Background

The spray tower is a common device for industrial dust removal or waste gas treatment, and has the advantages of simple structure, low cost and no blockage. The working principle of the spray tower can be divided into three forms of forward flow, reverse flow and cross flow, wherein the most common form is a reverse flow spray form, a spray layer and a packing layer are arranged in the traditional spray tower, waste gas is introduced from the lower part of the spray tower through an air pipe, is distributed by a gas distribution device through the packing layer and then continuously passes through gaps of the packing layer in a reverse flow manner with absorption liquid, gas-liquid two phases are fully contacted and react in the packing layer or liquid absorbs impurities in the gas so as to achieve the effect of purifying the gas, the waste gas is purified and then is dehydrated and demisted by a demister and then discharged, the liquid falls into a liquid pool at the bottom of the spray tower, and is pressurized by a pump and then returned to a spray mechanism at the upper part of the spray tower; the spray tower in addition adopts and sprays layer and whirl board complex structure, and the pending air current that has certain wind pressure, wind speed is introduced from the bottom of tower, and the absorption liquid is introduced from the upper portion of tower, and the air current can produce the spiral air current from bottom to top when passing through impeller form whirl board to make the air current can disperse to circumference, thereby the spiral air current reaches dust removal purification's effect with the contact of the vaporific absorption liquid of layer spun that sprays.

But the cooperation structure of spraying layer and whirl board that present spray column adopted sets up a whirl board that roughly occupies the tower body cross-section in spray column's tower body, the spiral air current that produces behind the rising air current through whirl board disperses inadequately in week, the regional gaseous flow of the outside that leans on in the footpath at the tower body cross-section is less, most air current is concentrated in the central zone of tower body cross-section, thereby air current and absorption liquid can not be abundant even contact, the absorption liquid that sprays the layer spun and leans on the radial outside region of tower body cross-section can not contact with sufficient air current, thereby fail to make full use of whole absorption liquid, consequently, purification dust removal efficiency and effect all receive serious influence.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve and the technical task that provides improve prior art, provide a spray column, solve traditional spray column structure among the prior art and be difficult to make the air current evenly distributed on the tower body cross-section, the gas-liquid is difficult to abundant, evenly contact, the poor problem of purifying effect.

For solving the above technical problem, the technical scheme of the utility model is that:

the utility model provides a spray column, includes the tower body, tower body lower part set up the air inlet, the top sets up the gas outlet, the tower body in set up and sprayed the layer to below spraying the layer is provided with the air current and distributes the layer, the air current distribute the layer and include whirl board and follow the baffle layer of tower body cross section, the baffle layer on seted up a plurality of through-holes, the whirl board device is in through-hole department. The spray tower of the utility model is provided with a plurality of cyclone plates in parallel in the cross section direction of the tower body, each cyclone plate works independently, the air flow forms spiral air flow after passing through the cyclone plates, thereby dispersing the airflow to the circumferential direction of the rotational flow plates, improving the coverage area of the airflow dispersion and eliminating dead angles under the synergistic action of a plurality of rotational flow plates, enabling the airflow dispersed from one rotational flow plate to be superposed and mixed with the airflow dispersed from the other rotational flow plate, thereby enhancing the distribution uniformity of the air flow on the cross section of the whole tower body, enhancing the mixing sufficiency and uniformity between the air flow and the vaporific liquid sprayed by the spraying layer, effectively absorbing the foreign dust or harmful substances in the air flow by the liquid, and then improve the purification dust removal effect to gaseous, make full use of the whole cross section of tower body avoids local area air current undersize to improve spray column's overall efficiency.

Further, the layer of spraying be provided with a plurality of layers along the direction of height interval of tower body, adjacent spraying all is provided with the air current distribution layer between the layer respectively, carries out multistage gas-liquid mixture along the direction of height of tower body and handles to make the air current can contact with liquid mixture many times, improve the sufficiency to the dust removal purification of gas.

Furthermore, a lower liquid port is formed in the partition plate layer of the air distribution layer, and the lower liquid port is connected with a liquid guide pipe extending to the center of the rotational flow plate of the next air distribution layer. Spray the layer and spray the fog liquid most whereabouts to the baffle layer of air current distribution layer after with the gas mixture contact that passes through from the whirl board, the baffle layer plays the effect of collecting liquid, then liquid falls to the whirl board center of next floor air current distribution layer along the catheter, liquid direct flow arrives the whirl board surface, thereby liquid that has carried out once mixing contact with the air current is in whirl board department contact with gas mixture once more, and then the secondary absorbs the purification treatment to the air current, make liquid can be by secondary make full use of, improve purifying effect.

Further, the whirl board include central part and a plurality of blade, blade evenly distributed connect in the circumference of central part, the blade slope is in the axial of whirl board, form between the adjacent blade and be inclined to the axial runner of whirl board, the air current forms the helical air current after through the whirl board, disperse away to the circumference periphery of whirl board, thereby make the air current evenly distributed on the cross section direction of tower body, and liquid falls to the central part of whirl board along the catheter, then the liquid flows on the blade, the air current that passes through from the runner between the blade can fully contact with the liquid on the blade, thereby improve purifying effect.

Further, the top side of central part be provided with the collecting tank, liquid passes through the catheter water conservancy diversion to the collecting tank in, when the collecting tank collection full back liquid spills over from the collecting tank again, can slow down liquid and pass the whereabouts from the whirl board to make liquid can be more abundant mix the contact with the air current, guarantee purifying effect.

Further, the collecting tank have the groove edge of uniform height in the whole week of whirl board to liquid can evenly spill over in the whole rotation week of whirl board, liquid dispersion is more even, and then the guarantee flows to the liquid on the blade is even in the whole rotation week of whirl board, can improve the homogeneity and the sufficiency that air current and liquid mix the contact, avoid liquid from the local direction of whirl board circumference to go up concentrated downflow and fail with whirl board circumference other direction upward air current mix the contact.

Further, the tower body in still be provided with the defogging layer above spraying the layer, the gas that sprays purification treatment can smuggle certain moisture secretly, direct emission can increase the pollution, the liquid volume that purification treatment was sprayed to the loss simultaneously also, promptly, increased the liquid use amount, increased purification treatment's cost, consequently utilize the defogging layer to get rid of gaseous moisture, the pollution abatement, retrieve liquid simultaneously, reduce the liquid use amount, reduction in production cost.

Further, the defogging layer adopt the whirl plate defroster, the whirl plate defroster include one-level whirl subassembly and the second grade whirl subassembly that set up along the direction of height interval of tower body, one-level whirl subassembly and second grade whirl subassembly all are conventional structure that is helical impeller, moreover, the steam generator is simple in structure, will form rotatory air current when the air current passes the blade clearance of one-level whirl subassembly and second grade whirl subassembly, liquid drop in the air current is rotatory along with the air current together, thereby be thrown away along circumference under the effect of centrifugal force, thereby reach the purpose of going out the liquid drop centrifugal separation in the air current, realize gas-liquid separation, remove gaseous moisture, reduce and discharge the pollution, the gas-liquid separation efficiency of whirl plate defroster is high, the treatment flow is big, the resistance is little, low cost, good stability.

Further, the whirl plate defroster still including enclosing at one-level whirl subassembly and second grade whirl subassembly circumference outlying barrel, the barrel sub-unit connection has the collector pipe at whirl plate center with liquid water conservancy diversion to whirl plate defroster below, liquid through centrifugal separation falls on the barrel then along the collector pipe whereabouts to the whirl plate, liquid direct flow arrives whirl plate surface, make liquid through centrifugal separation once more with gas mixture contact carry out purification treatment, improve the utilization ratio of liquid, improve purifying effect, the liquid through whirl plate defroster separation is recycled to purification treatment, liquid total usage has been reduced, and production cost is reduced.

Further, the defogging layer include a plurality of whirl board defroster along the cross section direction distribution of tower body, improve the sufficiency and the homogeneity of defogging, spray the air current after the purification and carry out centrifugal separation simultaneously through a plurality of whirl board defroster and handle, the defogging is efficient, the process flow is big, can eliminate the dead angle along the whirl board defroster parallel operation of the cross section direction distribution of tower body, improves the sufficiency that the defogging was handled.

Compared with the prior art, the utility model discloses the advantage lies in:

the spray tower of the utility model can simultaneously carry out gas-liquid mixing treatment through the cyclone plates which are arranged in parallel in the cross section direction of the tower body, can improve the uniformity of the distribution of the airflow in the cross section direction of the tower body, leads the airflow and the liquid to be more fully and uniformly mixed and contacted, improves the dust removal and purification effect on the gas, and has high purification efficiency, large treatment flow and small resistance;

the utilization rate of the liquid is improved, the liquid can be mixed and contacted with the gas for multiple times, and the dust removal and purification effects are effectively improved;

adopt the whirl board defroster, the air velocity is big more, and centrifugal separation effort is big more, enables the moisture in the air current and goes out by abundant centrifugal separation, need not to exert power, uses low power dissipation, with low costs, and the defogging is efficient, and it is big to handle the flow, and the resistance is little, and stability is good.

Drawings

FIG. 1 is a schematic sectional structure view of a spray tower;

FIG. 2 is a schematic view of a gas flow distributor layer;

FIG. 3 is a schematic view of the cyclone plate;

FIG. 4 is a schematic view of a sectional structure of a swirl plate mist eliminator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model discloses a spray column enables the air current and distributes more evenly on the cross-section of tower body to make the gas-liquid can be more abundant, even contact, and then improve purifying effect.

As shown in fig. 1 to 4, a spray tower mainly comprises a tower body 1, wherein an air inlet 11 is arranged at the lower part of the tower body 1, an air outlet 12 is arranged at the top part of the tower body 1, a spray layer 2 is arranged in the tower body 1, the spray layer 2 is provided with a plurality of spray headers which are uniformly distributed on the cross section of the tower body 1, the spray headers spray mist liquid to fully contact with air flow, the mist liquid absorbs harmful components or foreign dust in the air flow to achieve the effect of purifying the air flow, and an air flow distribution layer 3 is arranged below the spray layer 2;

the air distribution layer 3 comprises a cyclone plate 31 and a partition plate layer 32 along the cross section of the tower body 1, a plurality of through holes are formed in the partition plate layer 32, the cyclone plate 31 is arranged at the through holes, the distribution condition of the cyclone plate 31 on the cross section of the tower body 1 can be adjusted and selected according to actual conditions, in the embodiment, seven cyclone plates 31 are arranged, and one cyclone plate at the center of the cross section of the tower body 1 and six cyclone plates which are uniformly distributed along the circumferential direction of the cross section of the tower body 1 are guaranteed; the airflow forms spiral airflow after passing through the rotational flow plates, so that the airflow is dispersed in the circumferential direction of the rotational flow plates, the plurality of rotational flow plates cooperate to improve the distribution uniformity of the airflow on the cross section of the whole tower body, the vaporous liquid sprayed by the spray header descends towards the lower part of the tower body, and the airflow passing through the rotational flow plates 31 is uniformly distributed and ascends on the cross section of the whole tower body, so that the vaporous liquid and the airflow are in countercurrent mixing contact, and the vaporous liquid absorbs harmful components or foreign dust in the airflow to realize purification;

in this embodiment, the spraying layers 2 are arranged at intervals along the height direction of the tower body 1, the air current distribution layers 3 are respectively arranged between the adjacent spraying layers 2, and the vaporous liquid sprayed by each spraying layer 2 is fully mixed and contacted with the air current uniformly distributed on the cross section of the tower body after passing through the air current distribution layer 3 for purification, that is, multi-stage purification treatment is performed along the height direction of the tower body 1, so that the sufficiency of the purification treatment is improved;

a liquid guide assembly for guiding liquid centrifugally dispersed from the cyclone plates 31 of the upper air distribution layer 3 to the center of the cyclone plates 31 of the lower air distribution layer 3 is further arranged between the adjacent air distribution layers 3, specifically, a lower liquid port 33 is formed in the partition layer 32 of the upper air distribution layer 3, the lower liquid port 33 is connected with a liquid guide pipe 34 extending to the center of the cyclone plates 31 of the lower air distribution layer 3, most of the mist sprayed from the spraying layer falls onto the partition layer of the air distribution layer after being mixed and contacted with the gas passing through the cyclone plates, the partition layer plays a role in collecting the liquid, then the liquid falls to the center of the cyclone plates 31 of the lower air distribution layer 3 along the liquid guide pipe 34 in a concentrated manner, the liquid flows to the surface of the cyclone plates 31 and then contacts with the air flow again, and the liquid absorbing the foreign dust or harmful substances in the gas above the upper air distribution layer 3 can be used for purifying and absorbing the gas when the liquid falls to the lower air distribution layer 3 The liquid utilization rate is provided, the liquid can be mixed and contacted with the gas for multiple times, and the dust removal and purification effects are effectively improved;

in this embodiment, the swirl plate 31 includes a central portion 311 and a plurality of blades 312, the blade evenly distributed connect in the circumference of central portion 311, swirl plate 31 is the non-rotation mechanism that stews, the radial inboard of blade 312 is connected in the central portion, the radial outside of blade 312 then is connected with the through-hole edge of baffle layer 32, and, the top side of the central portion 311 of swirl plate 31 is provided with the catch basin 313 that is used for receiving the liquid that catheter 34 guided down, the catch basin 313 have the trough edge of uniform height in the whole rotation circumference of swirl plate 31, thereby liquid can evenly overflow in the whole rotation circumference of swirl plate after the catch basin is full of liquid, the guarantee flows to the liquid on the blade is even in the whole rotation circumference of swirl plate, can improve the homogeneity and the sufficiency of air current and liquid mixed contact, improve the purification treatment effect.

In this embodiment, a mist removing layer 4 is further disposed above the uppermost spraying layer 2 in the tower body 1, the mist removing layer 4 is a cyclone plate demister, the mist removing layer 4 includes a plurality of cyclone plate demisters distributed along the cross section direction of the tower body 1, specifically, a separation layer for separating the tower body 1 in the height direction is disposed in the top of the tower body 1, the separation layer is provided with a through hole for installing the cyclone plate demister, the cyclone plate demister includes a first-stage cyclone assembly 41 and a second-stage cyclone assembly 42 disposed at intervals along the height direction of the tower body 1, and a cylinder 43 surrounding the first-stage cyclone assembly 41 and the second-stage cyclone assembly 42 in the circumferential direction, the cylinder 43 is fixed at the through hole of the separation layer, the cylinder 43 is in the height direction of the tower body 1, the first-stage cyclone assembly 41 and the second-stage cyclone assembly 42 are impeller structures, and when an air flow passes through a blade gap between the first-stage, liquid drops in the air current are rotatory along with the air current together, thereby be thrown away to barrel 43 along circumference under the effect of centrifugal force, thereby reach the purpose that gas-liquid separation got rid of moisture in the gas, the moisture that is thrown away flows down along barrel 43, barrel 43 sub-unit connection has the collecting pipe 44 with liquid water conservancy diversion to the whirl plate 31 center of whirl plate defroster below, thereby make gas-liquid separation's moisture be retrieved in the purification treatment of recycling, the total amount of liquid has been reduced, the production cost is reduced, gas-liquid separation's moisture falls on whirl plate 31 and flows to the blade of whirl plate 31, thereby the air current of ascending can contact with the liquid on whirl plate 31 blade when passing through from the blade clearance of whirl plate 31, thereby further carry out purification treatment, and the purifying effect is improved.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. The utility model provides a spray column, a serial communication port, includes tower body (1), tower body (1) lower part set up air inlet (11), the top sets up gas outlet (12), tower body (1) in set up and sprayed layer (2) to below spraying layer (2) is provided with air current distribution layer (3), air current distribution layer (3) including whirl board (31) and along baffle layer (32) of tower body (1) cross section, baffle layer (32) on seted up a plurality of through-holes, whirl board (31) device is in through-hole department.

2. The spray tower according to claim 1, characterized in that the spray layers (2) are arranged in a plurality of layers at intervals along the height direction of the tower body (1), and the gas flow distribution layers (3) are respectively arranged between the adjacent spray layers (2).

3. The spray tower of claim 2, characterized in that the baffle layer (32) of the air distribution layer (3) is provided with a lower liquid port (33), and the lower liquid port (33) is connected with a liquid guide pipe (34) extending to the center of the swirl plate (31) of the next air distribution layer (3).

4. The spray tower of claim 3, wherein the swirl plate (31) comprises a central portion (311) and a plurality of blades (312), the blades (312) are uniformly distributed and connected in the circumferential direction of the central portion (311), the blades are inclined to the height direction of the tower body (1), a flow channel inclined to the height direction of the tower body (1) is formed between every two adjacent blades, the air flow forms a spiral air flow after passing through the swirl plate (31) and is diffused to the circumferential periphery of the swirl plate (31), so that the air flow is more uniformly distributed on the cross section of the tower body (1), the sufficiency of a gas-liquid mixing base is improved, and a dust removal and purification effect is improved.

5. The spray tower according to claim 4, characterized in that the top side of the central portion (311) is provided with a sump (313).

6. The spray tower according to claim 5, wherein the sump (313) has a trough rim of uniform height over the entire circumference of the swirl plate (31).

7. The spray tower according to any one of claims 1 to 6, characterized in that a demisting layer (4) is further arranged above the spray layer (2) in the tower body (1).

8. The spray tower of claim 7, characterized in that the demisting layer (4) is a cyclone plate demister, and the cyclone plate demister comprises a primary cyclone assembly (41) and a secondary cyclone assembly (42) which are arranged at intervals along the height direction of the tower body (1).

9. The spray tower of claim 8, wherein the swirl plate mist eliminator further comprises a cylinder (43) surrounding the circumferential periphery of the primary swirl assembly (41) and the secondary swirl assembly (42), and a collecting pipe (44) guiding the liquid to the center of the swirl plate (31) below the swirl plate mist eliminator is connected to the lower part of the cylinder (43).

10. The spray tower according to claim 8 or 9, characterized in that the demisting layer (4) comprises a plurality of swirl plate demisters distributed along the cross-sectional direction of the tower body (1).