CN223505091U

CN223505091U - Flue gas treatment integrated device of desulfurizing tower

Info

Publication number: CN223505091U
Application number: CN202422820784.4U
Authority: CN
Inventors: 袁兴雷; 齐旭艳; 成泽琨; 甄文安; 黄丽; 薛雷; 李晓存; 李嘉政; 卢少玉; 范旭
Original assignee: Sanmenxia Mingzhu Electric Smelting Co ltd
Current assignee: Sanmenxia Mingzhu Electric Smelting Co ltd
Priority date: 2024-11-19
Filing date: 2024-11-19
Publication date: 2025-11-04
Anticipated expiration: 2034-11-19

Abstract

The utility model relates to the technical field of flue gas treatment, and particularly discloses a flue gas treatment integrated device of a desulfurizing tower, which comprises a pre-filtering component, a pre-cooling component and a desulfurizing component, wherein the pre-filtering component is communicated with the middle of the pre-cooling component through a first connecting pipe, the bottoms of the two components are fixedly connected with the same base, the middle of the pre-cooling component is communicated with the middle of the desulfurizing component through a second connecting pipe, the desulfurizing component comprises a pre-washing tower, the upper side of the right end of the pre-washing tower is communicated with an air duct, the other end of the air duct is communicated with the desulfurizing tower, the top end of the desulfurizing tower is communicated with an exhaust pipe, a spray pipe is annularly arranged between the inner side wall and the outer side wall of the upper part, a plurality of atomizing spray nozzles are arranged at equal intervals in the desulfurizing tower, one end of a water inlet is communicated with a first water pump, and the water pumping end of the first water pump is connected with a desulfurizing liquid tank.

Description

Flue gas treatment integrated device of desulfurizing tower

Technical Field

The utility model belongs to the technical field of flue gas treatment, and particularly relates to a flue gas treatment integrated device of a desulfurizing tower.

Background

With the acceleration of industrialization progress, the problem of smoke emission generated in industrial fields such as coal-fired power plants, chemical plants and the like is increasingly serious. The flue gas contains a large amount of harmful substances such as sulfur oxides (SOx), nitrogen oxides (NOx) and the like, and the substances not only threaten human health, but also cause serious pollution to the atmospheric environment. In order to meet the requirements of environmental protection, it is becoming particularly important to perform effective purification treatment on the flue gas. The desulfurizing tower is used as an important fume treating equipment and plays a key role in the fume purifying process.

However, the existing desulfurizing towers still have some problems in practical application, which limit the purifying effect.

Firstly, the flue gas discharged into the desulfurizing tower contains more granular dust impurities, the impurities reduce the efficiency of the desulfurizing reaction, the purifying effect is poor, and the inside of the desulfurizing tower is possibly blocked, so that the difficulty of maintenance and cleaning is increased;

And the flue gas entering the desulfurizing tower is generally higher in temperature, and the activity of the desulfurizing agent is inhibited under the high-temperature condition, so that the sufficient removal of sulfides in the flue gas is influenced. In addition, the high temperature may also cause increased loss of desulfurizing agent, increasing the operating cost.

Disclosure of utility model

The utility model aims to provide a flue gas treatment integrated device of a desulfurizing tower, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The flue gas treatment integrated device of the desulfurizing tower comprises a pre-filtering component, a pre-cooling component and a desulfurizing component, wherein the pre-filtering component is communicated with the middle of the pre-cooling component through a first connecting pipe, the bottoms of the two components are fixedly connected with the same base, the middle of the pre-cooling component is communicated with the desulfurizing component through a second connecting pipe, the desulfurizing component comprises a pre-washing tower, the upper side of the right end of the pre-washing tower is communicated with an air duct, the other end of the air duct is communicated with the desulfurizing tower, the top end of the desulfurizing tower is communicated with an exhaust pipe, a spray pipe is annularly arranged between the inner side wall and the outer side wall of the upper part of the desulfurizing tower, a plurality of atomizing spray heads are arranged in the desulfurizing tower at equal intervals, one end of a water inlet is communicated with a first water pump, and the water pumping end of the first water pump is connected with a desulfurizing liquid tank;

The prefilter assembly comprises a filter box, an air inlet pipe is fixedly connected to the left end of the filter box, and a plurality of first filter plates are slidably mounted in the filter box.

Preferably, the pre-cooling component comprises a cooling box, a water storage tank and a second water pump are fixedly connected to the top surface of the cooling box, a water outlet pipe is arranged between the inner wall and the outer wall of the top end of the cooling box, a plurality of spray heads are communicated with the inside of the cooling box at equal intervals, one water inlet end of the water outlet pipe is communicated with a discharge pipe of the second water pump, and a suction pipe of the second water pump is communicated with the water storage tank.

Preferably, the filter box lateral wall rigid coupling has driving motor, and inside rotates and is equipped with the cam lever, the output shaft of one end rigid coupling driving motor of cam lever, and both sides all are provided with first filter, first filter is total two, and they are all rigid coupling to the lateral wall four corners of outsideing has vibrating spring, and a plurality of vibrating spring other end all rigid coupling is on the filter box inner wall, the ash removal mouth has been seted up to the filter box bottom to through ash removal mouth intercommunication and rigid coupling there being the ash bucket.

Preferably, the second filter plates are clamped at equal intervals below the inner part of the cooling box, an opening is arranged at the bottom of the cooling box, the cooling box is communicated with and fixedly connected with a collecting box through the opening, and a condensing device is communicated with the bottom of the collecting box.

Preferably, the condensing device comprises a return pipe, the bottom end of the return pipe is communicated with the collecting box, the middle of the return pipe is communicated with the cooler, the top end of the return pipe is connected with a third water pump, the cooler is fixedly connected to the side wall of the cooling box, and a suction pipe of the third water pump is communicated with the water storage tank.

Preferably, the bottom of the desulfurizing tower is obliquely arranged, a flow guide pipe is communicated with the bottom of the desulfurizing tower, and a centralized treatment box is communicated with the other end of the flow guide pipe.

Preferably, the second connecting pipe is in a Z shape.

Preferably, the first connecting pipes are uniformly distributed on the filter box from top to bottom.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The flue gas is pre-filtered through the first filter plate, other granular impurities such as larger coal ash and the like are adsorbed in the filter device, so that the flue gas entering the desulfurizing tower can fully react with desulfurizing liquid, the desulfurizing quality is improved, the blocking of the interior of the desulfurizing tower caused by particles can be prevented, the particles are reduced, the accumulation of sediment in the desulfurizing tower is reduced, and the desulfurizing tower is convenient to clean;

(2) The flue gas is pre-cooled through the spray cooling system, so that the flue gas is conveniently cooled to a proper temperature, and the flue gas can be better absorbed by the desulfurizing agent after entering the desulfurizing tower.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a front elevational cross-sectional view of the present utility model;

FIG. 3 is a back perspective view of the present utility model;

FIG. 4 is a side cross-sectional view of the desulfurization module of the present utility model;

FIG. 5 is a side cross-sectional view of the cooling module of the present utility model;

1, a prefilter assembly; 11, a filter box, 12, an air inlet pipe, 13, a first filter plate, 14, a vibrating spring, 15, a cam rod, 16, a driving motor, 17, an ash bucket, 2, a pre-cooling component, 21, a cooling box, 22, a water outlet pipe, 23, a spray head, 24, a second water pump, 25, a water storage tank, 26, a second filter plate, 27, a collecting box, 3, a desulfurization component, 31, a pre-washing tower, 32, an air duct, 33, a desulfurization tower, 34, a spray pipe, 35, an atomization spray head, 36, a first water pump, 37, a desulfurization liquid box, 38, an exhaust pipe, 4, a first connecting pipe, 5, a base, 6, a second connecting pipe, 7, a condensing device, 71, a return pipe, 72, a cooler, 73, a third water pump, 8, a guide pipe, 9 and a centralized treatment box.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

Referring to fig. 1 to 5, an integrated flue gas treatment apparatus for a desulfurizing tower includes: the prefilter assembly 1, the pre-cooling assembly 2 and the desulfurization assembly 3 are communicated through a first connecting pipe 4 in the middle of the prefilter assembly 1 and the pre-cooling assembly 2, the first connecting pipe 4 is uniformly distributed on the filter box 11 from top to bottom, the flow rate of the smoke in unit time is increased by a plurality of air inlet pipes 2, the efficiency is increased, the same base 5 is fixedly connected at the bottoms of the two assemblies, the pre-cooling assembly 2 and the desulfurization assembly 3 are communicated through a second connecting pipe 6 in the middle of the second connecting pipe 6, the second connecting pipe 6 is Z-shaped, the time of the smoke entering the desulfurization assembly 3 can be prolonged, further cooling is realized, the desulfurization reaction is further promoted, the desulfurization assembly 3 comprises a pre-washing tower 31, the smoke enters the pre-washing tower 31 and contacts with a saturated ammonium sulfate solution, ammonium sulfate crystals are separated out due to evaporation of water in the saturated ammonium sulfate solution, the upper side of the right end of the pre-washing tower 31 is communicated with an air duct 32, the other end of the air duct 32 is communicated with a desulfurizing tower 33, the top end of the desulfurizing tower 33 is communicated with an exhaust pipe 38, a spray pipe 34 is annularly arranged between the inner side wall and the outer side wall of the upper part, the spray pipe 34 is formed by connecting a square annular pipe arranged in the horizontal direction with a straight pipe vertically arranged in the vertical direction, a plurality of atomizing nozzles 35 are equidistantly arranged in the desulfurizing tower 33 by the spray pipe 34, the annular atomizing nozzles 35 can form a relatively uniform spraying area in the desulfurizing tower 33, so that desulfurizing agents can fully contact with flue gas flowing from bottom to top, the flue gas meets the desulfurizing agents sprayed in all directions in the rising process, the contact area of the desulfurizing agents is greatly increased, the efficiency of desulfurization reaction is improved, the desulfurization is more sufficient, the first water pump 36 is communicated with one end of the water inlet, the pumping end of the first water pump 36 is connected with the desulfurizing liquid tank 37, the bottom of the desulfurizing tower 33 is obliquely arranged, the bottom of the desulfurizing tower is communicated with the guide pipe 8, the other end of the guide pipe 8 is communicated with the centralized processing tank 9, through the inclined plane arrangement, waste liquid generated after the desulfurizing agent reaction can be timely discharged into the centralized processing tank 9 through the guide pipe 8, the interference of the waste liquid on the flue gas reaction is reduced, and the centralized processing tank 9 plays a role in uniformly processing the waste liquid, so that harmful substances are effectively removed, and the risk of environmental pollution is reduced;

The prefilter assembly 1 comprises a filter box 11, an air inlet pipe is fixedly connected to the left end of the filter box 11, a plurality of first filter plates 12 are slidably mounted in the filter box, a driving motor 16 is fixedly connected to the side wall of the filter box 11, a cam rod 15 is rotatably assembled in the filter box, one end of the cam rod 15 is fixedly connected with an output shaft of the driving motor 16, the two sides of the filter plate 13 are respectively provided with a first filter plate 13, the filter plate 13 can be made of stainless steel materials, and has the advantages of good corrosion resistance, wear resistance, smooth surface, easiness in cleaning, easiness in falling off of dust during vibration and the like, the two first filter plates 13 are respectively fixedly connected with vibrating springs 14 at four corners of the opposite outer side wall of the filter plate, the other ends of the vibrating springs 14 are fixedly connected to the inner wall of the filter box 11, dust removing openings are formed in the bottom of the filter box 11, and are communicated and fixedly connected with dust hoppers 17 through the dust removing openings, and the dust hoppers 17 are in a four-stage shape, so that dust gathering and recycling treatment are facilitated;

from the above, in the installation process, the flue gas is firstly discharged into the filter tank 11 through the air inlet pipe 12, the flue gas is primarily filtered to remove larger particle impurities through the plurality of first filter plates 13, meanwhile, after the desulfurization of the whole device is completed, the driving motor 16 can be started to drive the cam rod 15 to rotate, the first filter plates 13 on two sides vibrate left and right, the vibration amplitude of the first filter plates 13 is increased by the vibration springs 14, the generated dust is shaken off, the dust is uniformly discharged through the ash bucket 17, the primarily filtered flue gas is subjected to cooling treatment of the pre-cooling component 2 and is discharged into the pre-washing tower 31 to be contacted with the saturated ammonium sulfate solution, the ammonium sulfate crystals are separated out due to the evaporation of water in the saturated ammonium sulfate solution, then the flue gas which is cooled enters the desulfurizing tower 33 through the air guide pipe 32, ammonia and water are mixed into ammonia liquor, SO ₂ in the flue gas is absorbed and reacts with ammonia to generate ammonium sulfate, the desulfurized flue gas is discharged through the exhaust pipe 38, and the generated waste liquid flows into the centralized treatment tank 9, and the secondary treatment can be performed, and the ammonium sulfate solution is sent into the pre-washing tower 31 for recycling.

Embodiment two:

Referring to fig. 2, fig. 3 and fig. 5, the pre-cooling component 2 comprises a cooling tank 21, a water storage tank 25 and a second water pump 24 are fixedly connected to the top surface of the cooling tank 21, a water outlet pipe 22 is installed between the inner wall and the outer wall of the top end, a plurality of spray heads 23 are connected to the water outlet pipe 22 at equal intervals inside the cooling tank 21, one water inlet end is communicated with a discharge pipe of the second water pump 24, the water outlet pipe 22 is formed by combining a pipe network arranged in the horizontal direction with a straight pipe arranged in the vertical direction, the pipe network in the horizontal direction is fully distributed inside the cooling tank 21, the spraying range of the spray heads 23 can cover the whole cooling tank 21, flue gas is fully cooled, a suction pipe of the second water pump 24 is communicated with the water storage tank 25, a second filter plate 26 is clamped at equal intervals below the inner part of the cooling tank 21, an opening is arranged at the bottom, and is communicated with a collecting tank 27 through the opening, the bottom of the collecting tank 27 is communicated with the condensing device 7, the bottom of the collecting tank 27 comprises a return pipe 71, the bottom end of the return pipe 71 is communicated with the collecting tank 27, a middle is communicated with the cooler 72, the return pipe 71 in the cooler 72 is in a spiral shape, the time of the return liquid in the cooler 72 is prolonged, the time of the whole cooling tank is cooled fully, the cooling tank is guaranteed, the liquid reaches the full cooling, and is fully cooled, and then returned to the top end is connected to the third water pump 73 is fixedly connected to the water storage tank 25 on the side wall 73, and is fixedly connected to the water tank 73.

From the above, the flue gas after preliminary filtration by the pre-filtration component 1 enters the cooling tank 21, the second water pump 24 is started to spray water mist to cool the flue gas, meanwhile, the flue gas which is not completely filtered is also subjected to dust fall treatment, the cooled flue gas is discharged into the desulfurization component 3 through the second connecting pipe 6, dust generated by the cooling treatment in the cooling tank 21 can be adsorbed on the second filter plate 26, the sprayed water is collected in the collecting tank 27 after being filtered by the second filter plate 26, the water after being extracted and recovered is pumped and filtered by the third water pump 73, the water returns to the water storage tank 25 after being cooled by the cooler 72, and the flue gas is cooled by spraying again, so that the secondary recycling of the wastewater is realized, and the water resource is saved.

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

Claims

1. The flue gas treatment integrated device of the desulfurizing tower comprises a pre-filtering component (1), a pre-cooling component (2) and a desulfurizing component (3), wherein the pre-filtering component (1) is communicated with the pre-cooling component (2) through a first connecting pipe (4), the bottoms of the two components are fixedly connected with the same base (5), the pre-cooling component (2) is communicated with the desulfurizing component (3) through a second connecting pipe (6), the integrated device is characterized in that the desulfurizing component (3) comprises a pre-washing tower (31), an air duct (32) is communicated with the upper side of the right end of the pre-washing tower (31), the other end of the air duct (32) is communicated with a desulfurizing tower (33), an exhaust pipe (38) is communicated with the top end of the desulfurizing tower (33), a plurality of atomizing nozzles (35) are installed between the inner side wall and the outer side wall of the upper side of the desulfurizing tower in an annular mode, one end of the water inlet is communicated with a first water pump (36), and the water pumping end of the first water pump (36) is connected with a desulfurizing liquid tank (37);

The pre-filtering assembly (1) comprises a filtering box (11), an air inlet pipe is fixedly connected to the left end of the filtering box (11), and a plurality of first filtering plates (13) are slidably arranged in the filtering box;

2. The integrated flue gas treatment device for the desulfurizing tower according to claim 1, wherein the pre-cooling component (2) comprises a cooling box (21), a water storage tank (25) and a second water pump (24) are fixedly connected to the top surface of the cooling box (21), a water outlet pipe (22) is arranged between the inner wall and the outer wall of the top end, a plurality of spray heads (23) are communicated with the water outlet pipe (22) at equal intervals in the cooling box (21), one water inlet end is communicated with a discharge pipe of the second water pump (24), and a suction pipe of the second water pump (24) is communicated with the water storage tank (25).

3. The flue gas treatment integrated device of a desulfurizing tower according to claim 1, wherein the side wall of the filter box (11) is fixedly connected with a driving motor (16), a cam rod (15) is rotatably assembled in the filter box, one end of the cam rod (15) is fixedly connected with an output shaft of the driving motor (16), two sides of the cam rod are respectively provided with a first filter plate (13), two first filter plates (13) are respectively fixedly connected with vibrating springs (14) at four corners of the opposite outer side wall of the first filter plates, the other ends of the vibrating springs (14) are respectively fixedly connected with the inner wall of the filter box (11), and an ash removing opening is formed in the bottom of the filter box (11) and communicated with and fixedly connected with an ash bucket (17) through the ash removing opening.

4. The integrated flue gas treatment device for the desulfurizing tower according to claim 2, wherein the second filter plates (26) are clamped at equal intervals below the inside of the cooling box (21), an opening is arranged at the bottom of the cooling box, the cooling box is communicated with and fixedly connected with a collecting box (27) through the opening, and a condensing device (7) is communicated with the bottom of the collecting box (27).

5. The integrated flue gas treatment device for a desulfurizing tower according to claim 4, wherein the condensing device (7) comprises a return pipe (71), the bottom end of the return pipe (71) is communicated with a collecting box (27), the middle part of the return pipe is communicated with a cooler (72), the top end of the return pipe is connected with a third water pump (73), the cooler (72) is fixedly connected to the side wall of the cooling box (21), and a suction pipe of the third water pump (73) is communicated with the water storage tank (25).

6. The integrated flue gas treatment device for the desulfurizing tower according to claim 1, wherein the bottom of the desulfurizing tower (33) is obliquely arranged, a flow guide pipe (8) is communicated with the bottom, and a centralized treatment box (9) is communicated with the other end of the flow guide pipe (8).

7. The integrated flue gas treatment device for a desulfurizing tower according to claim 1, wherein the second connecting pipe (6) is Z-shaped.

8. The integrated flue gas treatment device for a desulfurizing tower according to claim 1, wherein the first connecting pipes (4) are uniformly distributed on the filter box (11) from top to bottom.