CN210522243U

CN210522243U - Lime gypsum method desulfurizing tower

Info

Publication number: CN210522243U
Application number: CN201921484728.0U
Authority: CN
Inventors: 彭博; 何升
Original assignee: Foshan Zhongtian Environmental Engineering Co Ltd
Current assignee: Foshan Zhongtian Environmental Engineering Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-15
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses a lime gypsum method desulfurizing tower, including tower body, thick liquid circulation groove, first spray dish, second spray dish and third spray dish, the bottom of tower body is provided with the thick liquid circulation groove, the suction house steward is installed to the opposite side in thick liquid circulation groove, install the circulating pump on the suction house steward, the upper portion from the top down of suction house steward has connected gradually three suction branch pipe, and is three the other end of suction branch pipe all inserts inside the tower body, the inside from the top down of tower body has set gradually first spray dish, second spray dish and third spray dish, first spray dish, second spray dish and third spray dish respectively with from the top down three suction branch connection that sets gradually. The utility model discloses a set up first spray tray, second spray tray, third spray tray, first tray and second tray, it is inhomogeneous to have solved current technique and sprayed the structure coverage to the flue gas is too fast in the spray column, the poor problem of desulfurization effect.

Description

Lime gypsum method desulfurizing tower

Technical Field

The utility model relates to an industrial waste gas flue gas desulfurization handles technical field, specifically is a lime gypsum method desulfurizing tower.

Background

The main principle of limestone-gypsum wet desulfurization is that limestone or lime is used as desulfurizing absorbent, the limestone is crushed and ground into powder, and mixed with water and stirred into absorption slurry, when lime is used as absorbent, the lime powder is digested and then added with water to prepare the absorbent slurry. In the absorption tower, it mixes with the flue gas contact to absorb the thick liquid, thereby the oxidation air of calcium carbonate and the drum in sulfur dioxide in the flue gas and the thick liquid carries out chemical reaction and is got rid of, final reaction product is the gypsum, the equipment that its work needs mainly has pulping equipment, the desulfurizing tower, gypsum preparation equipment etc., at present, the shower head of current lime gypsum method desulfurizing tower is most to be sharp distribution on the shower, and the desulfurizing tower is mostly circular structure, current spray structure can't accomplish the full cover to the circular cavity of desulfurizing tower completely, and it is not even enough to spray, lead to the flue gas can't contact with spray water completely, and combine inadequately, in addition, the flue gas is very fast in the spray tower, flue gas and spray water contact time are short, lead to the lower unable environmental protection emission standard that can't satisfy of desulfurization effect.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a lime gypsum method desulfurizing tower, it is inhomogeneous to have solved current technique and sprayed the structure coverage to the flue gas is too fast in the spray column, the poor problem of desulfurization effect.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lime gypsum method desulfurizing tower, includes tower body, thick liquid circulation tank, first spray dish, second spray dish and third spray dish, the bottom of tower body is provided with the thick liquid circulation tank, the suction house steward is installed to the opposite side in thick liquid circulation tank, install the circulating pump on the suction house steward, the upper portion from the top down of suction house steward has connected gradually three suction branch pipe, and is three the other end of suction branch pipe all inserts inside the tower body, the inside from the top down of tower body has set gradually first spray dish, second spray dish and third spray dish, first spray dish, second spray dish and third spray dish respectively with from the top down three suction branch connection that set gradually, first spray dish, second spray dish and third spray dish all include outer frame, spray and be responsible for and spray branch pipe, the spray is responsible for and installs in the centre of outer frame, the both sides symmetrical arrangement who sprays the person in charge has a plurality of branch pipes that spray, branch pipe's bottom surface interval has evenly seted up and has sprayed the hole, and a plurality of branch pipe's the other end all with outer frame inner wall fixed connection, one side of tower body is provided with into the mouth, the inside of tower body has set gradually first tray and second tray from the top down between income mouth and the third spray plate, first tray and second tray all include disk body, lower disk body and separate the frame, separate through separating the frame between going up disk body and the lower disk body.

Preferably, oxidation air pipe and thick liquid conveyer pipe are installed to one side of thick liquid circulation groove, the other end of oxidation air pipe is connected with the oxidation fan, install the confession thick liquid pump on the thick liquid conveyer pipe, and the other end and the slurrying equipment of thick liquid conveyer pipe are connected.

Preferably, one end of the slurry circulating tank is connected with a gypsum discharge pipe, a gypsum discharge pump is mounted on the gypsum discharge pipe, and the other end of the gypsum discharge pipe is connected with gypsum preparation equipment.

Preferably, the diameter of the spray holes is 0.5 mm.

Preferably, the upper tray body and the lower tray body of the first tray and the second tray are uniformly provided with small holes at intervals, and the small holes on the upper tray body and the small holes on the lower tray body on the same tray are distributed in a staggered manner in space.

Preferably, the demister is installed at the inside top of tower body, and the chimney is installed at the top of tower body.

Preferably, the outer frame is a circular frame body matched with the inner diameter of the tower body, and the spraying branch pipes distributed on two sides of the spraying main pipe are arranged in a fan shape as a whole.

(III) advantageous effects

The utility model provides a lime gypsum method desulfurizing tower possesses following beneficial effect:

(1) the utility model discloses a set up first spray tray, second spray tray and third spray tray, and three spray tray all includes outer frame, spray and be responsible for and spray branch pipe, outer frame adopt with tower body assorted circular structure, spray and be responsible for transversal arrangement in outer frame, separate into two semicircles in the outer frame, then spray branch pipe and be fan-shaped distribution in two semicircle intracavity, when spraying, the water in the suction branch pipe reentries and sprays the person in charge after, through spraying in being responsible for and flow to a spray branch pipe, then the spraying hole blowout of rethread spray branch pipe bottom, compare with the current structure that sprays that adopts the linear type to distribute, the utility model discloses the water smoke that sprays out distributes more evenly, and can cover each inside corner of tower body, can make flue gas and water smoke fully combine to improve desulfurization effect.

(2) The utility model discloses a set up first tray and second tray, during the use, the flue gas is entering the internal back of tower through going into the mouth, when passing through first tray and second tray, can be evenly separated by the aperture of seting up in the disk body on the tray and receive stopping of certain degree, reduce the flow velocity, this moment oar liquid evenly sprays the surface emergence strong mixing of back and flue gas at the tray through spraying the dish, form the foam blanket, the foam blanket has very big gas-liquid contact interface, sulfur dioxide to in the flue gas has fine absorptive capacity, thereby improve the desulfurization effect of flue gas.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a bottom view of the spray plate of the present invention;

fig. 3 is a schematic structural view of the tray of the present invention.

The reference numbers in the figures are: 1. a tower body; 2. a slurry circulation tank; 3. oxidizing an air pipe; 4. a slurry delivery pipe; 5. an oxidation fan; 6. a slurry supply pump; 7. a gypsum discharge pipe; 8. a suction manifold; 9. a gypsum discharge pump; 10. a circulation pump; 11. a suction manifold; 12. a smoke inlet; 13. a first spray pan; 14. a second spray pan; 15. a third spray tray; 16. a first tray; 17. a second tray; 18. a demister; 19. a smoke exhaust tube; 20. an outer frame; 21. spraying a main pipe; 22. spraying branch pipes; 23. spraying holes; 24. an upper tray body; 25. a lower tray body; 26. a separation frame.

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.

As shown in fig. 1-3, the utility model provides a technical solution: the utility model provides a lime gypsum method desulfurizing tower, includes tower body 1, thick liquid circulation tank 2, first spray tray 13, second spray tray 14 and third spray tray 15, the bottom of tower body 1 is provided with thick liquid circulation tank 2, suction header 8 is installed to the opposite side of thick liquid circulation tank 2, install circulating pump 10 on the suction header 8, suction header 8's upper portion from the top down has connected gradually three suction branch pipe 11, and is three inside suction branch pipe 11's the other end all inserted tower body 1, the inside from the top down of tower body 1 has set gradually first spray tray 13, second spray tray 14 and third spray tray 15, first spray tray 13, second spray tray 14 and third spray tray 15 are connected with three suction branch pipe 11 that from the top down set gradually respectively, first spray tray 13, second spray tray 14 and third spray tray 15 all include outer frame 20, second spray tray 14, Spray and be responsible for 21 and spray branch pipe 22, spray and be responsible for 21 and install the centre at outer frame 20, the bilateral symmetry who sprays and be responsible for 21 has a plurality of spray branch pipes 22, spray branch pipe 22's bottom surface interval has evenly seted up and has sprayed hole 23, and a plurality of spray branch pipe 22's the other end all with outer frame 20 inner wall fixed connection, one side of tower body 1 is provided with into mouth of cigarette 12, the inside of tower body 1 has set gradually first tray 16 and second tray 17 from the top down between income mouth of cigarette 12 and the third spray dish 15, first tray 16 and second tray 17 all include upper disc body 24, lower disc body 25 and separate frame 26, separate through separating frame 26 between upper disc body 24 and the lower disc body 25.

Preferably, oxidation air pipe 3 and thick liquid conveyer pipe 4 are installed to one side of thick liquid circulating slot 2, the other end of oxidation air pipe 3 is connected with oxidation fan 5, install on the thick liquid conveyer pipe 4 and supply the thick liquid pump 6, and the other end and the slurrying equipment of thick liquid conveyer pipe 4 are connected, and oxidation air pipe 3 can be used to carry the oxidizing air to thick liquid circulating slot 2 for sulfur dioxide in the flue gas and the calcium carbonate in the thick liquid take place chemical reaction and generate the gypsum, and thick liquid conveyer pipe 4 is used for the pulper to supply the thick liquid to thick liquid circulating slot 2.

Preferably, one end of the slurry circulation tank 2 is connected with a gypsum discharge pipe 7, a gypsum discharge pump 9 is installed on the gypsum discharge pipe 7, the other end of the gypsum discharge pipe 7 is connected with a gypsum preparation device, and the gypsum discharge pipe 7 is used for discharging gypsum generated by the slurry circulation tank 2 and freeing a larger space for the slurry circulation tank 2 to store slurry.

Preferably, the diameter of the spraying holes 23 is 0.5mm, and the spraying holes 23 with the caliber are beneficial to improving the pressure of slurry in the spraying branch pipe 22, so that the spraying is more uniform and the coverage area is wider.

Preferably, the upper tray body 24 and the lower tray body 25 of the first tray 16 and the second tray 17 are uniformly provided with small holes at intervals, and the small holes on the upper tray body 24 and the lower tray body 25 on the same tray are distributed in a staggered manner in space, so that the resistance for passing flue gas can be increased, the flow speed of the flue gas can be reduced, and the longer contact time can be provided for the combination of the flue gas and the spraying slurry.

Preferably, defroster 18 is installed on the inside top of tower body 1, chimney 19 is installed at the top of tower body 1, and defroster 18 can carry out the defogging to the flue gas after spraying the desulfurization, reduces the waste of water resource, and chimney 19 can be used to discharge the flue gas after handling smoothly.

Preferably, the outer frame 20 is a circular frame body matched with the inner diameter of the tower body 1, the spraying branch pipes 22 distributed on two sides of the spraying main pipe 21 are arranged in a fan shape overall, the fan-shaped spraying branch pipes are distributed to enable the spraying holes 23 to be distributed at all positions of the cross section of the tower body 1, the spraying density and the spraying coverage area are improved, and the spraying is more uniform.

Working principle; when the device is used, after smoke enters the tower body 1 through the smoke inlet 12, the smoke flows upwards to be in full contact with a first tray 16 and a second tray 17 which are arranged in the tower body 1, the flow speed of the smoke is reduced after the smoke is blocked by the trays to a certain degree, the smoke is uniformly separated by small holes which are formed in a tray body of the trays, at the moment, slurry in the slurry circulation tank 2 enters three suction branch pipes 11 through a suction main pipe 8 under the suction of a circulation pump 10 and then enters a first spray tray 13, a second spray tray 14 and a third spray tray 15 through the three suction branch pipes 11, the slurry flows into each spray main pipe 22 through the spray main pipe 21 after entering the spray main pipe 21 and then is sprayed out through the spray holes 23 at the bottom of the spray branch pipes 22, the slurry is strongly mixed with the smoke on the surface of the trays after being sprayed out, a foam layer is formed, and the foam layer has a large gas-liquid contact interface, has good absorption capacity for sulfur dioxide in the flue gas, and realizes the desulfurization of the flue gas.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lime gypsum method desulfurizing tower, includes tower body (1), thick liquid circulation groove (2), first spray dish (13), second spray dish (14) and third spray dish (15), its characterized in that: the bottom of tower body (1) is provided with thick liquid circulation groove (2), suction header pipe (8) are installed to the opposite side of thick liquid circulation groove (2), install circulating pump (10) on suction header pipe (8), the upper portion from the top down of suction header pipe (8) has connected gradually three suction branch pipe (11), and is three the other end of suction branch pipe (11) all inserts inside tower body (1), the inside from the top down of tower body (1) has set gradually first spray dish (13), second spray dish (14) and third spray dish (15), first spray dish (13), second spray dish (14) and third spray dish (15) are connected with three suction branch pipe (11) that from the top down set gradually respectively, first spray dish (13), second spray dish (14) and third spray dish (15) all include outer frame (20), A main spray pipe (21) and a branch spray pipe (22), wherein the main spray pipe (21) is arranged in the middle of the outer frame (20), a plurality of spraying branch pipes (22) are symmetrically arranged on both sides of the spraying main pipe (21), the bottom surfaces of the spraying branch pipes (22) are evenly provided with spraying holes (23) at intervals, and the other ends of the plurality of spraying branch pipes (22) are fixedly connected with the inner wall of the outer frame (20), a smoke inlet (12) is arranged on one side of the tower body (1), a first tray (16) and a second tray (17) are sequentially arranged in the tower body (1) from top to bottom between the smoke inlet (12) and a third spray tray (15), the first tray (16) and the second tray (17) both comprise an upper tray body (24), a lower tray body (25) and a separation frame (26), the upper tray body (24) and the lower tray body (25) are separated by a separation frame (26).

2. The lime gypsum method desulfurization tower of claim 1, characterized in that: oxidation air pipe (3) and thick liquid conveyer pipe (4) are installed to one side of thick liquid circulating slot (2), the other end of oxidation air pipe (3) is connected with oxidation fan (5), install on thick liquid conveyer pipe (4) and supply thick liquid pump (6), and the other end and the slurrying equipment of thick liquid conveyer pipe (4) are connected.

3. The lime gypsum method desulfurization tower of claim 1, characterized in that: one end of the slurry circulating groove (2) is connected with a gypsum discharge pipe (7), a gypsum discharge pump (9) is installed on the gypsum discharge pipe (7), and the other end of the gypsum discharge pipe (7) is connected with gypsum preparation equipment.

4. The lime gypsum method desulfurization tower of claim 1, characterized in that: the diameter of the spraying hole (23) is 0.5 mm.

5. The lime gypsum method desulfurization tower of claim 1, characterized in that: small holes are uniformly formed in the upper disc body (24) and the lower disc body (25) of the first tray (16) and the second tray (17) at intervals, and the small holes in the upper disc body (24) and the lower disc body (25) on the same tray are distributed in a staggered mode in space.

6. The lime gypsum method desulfurization tower of claim 1, characterized in that: the tower is characterized in that a demister (18) is installed at the top end of the interior of the tower body (1), and a smoke exhaust tube (19) is installed at the top of the tower body (1).

7. The lime gypsum method desulfurization tower of claim 1, characterized in that: the outer frame (20) is a circular frame body matched with the inner diameter of the tower body (1), and the spraying branch pipes (22) distributed on two sides of the spraying main pipe (21) are arranged in a fan shape overall.