CN110354656B

CN110354656B - Bubbling absorber for purifying sulfur-containing flue gas

Info

Publication number: CN110354656B
Application number: CN201910657795.6A
Authority: CN
Inventors: 吴文地
Original assignee: Shandong Aiyipu Environmental Protection Technology Co ltd
Current assignee: SHANDONG AIYIPU ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd.
Priority date: 2019-07-20
Filing date: 2019-07-20
Publication date: 2021-12-07
Anticipated expiration: 2039-07-20
Also published as: CN110354656A

Abstract

The invention relates to the technical field of flue gas purification, and discloses a bubbling absorber for purifying sulfur-containing flue gas, which comprises an absorption tower, an air inlet pipe, a liquid inlet pipe, a sieve plate, an absorbent, a blow-off pipe and an air outlet pipe, wherein the air inlet pipe is arranged on the absorption tower, the liquid inlet pipe is arranged outside the absorption tower, the sieve plate is arranged inside the absorption tower, the absorbent is filled on the sieve plate, the blow-off pipe is arranged on the absorption tower, the air outlet pipe is arranged at the top of the absorption tower, and the liquid inlet pipe, the absorbent, the sieve plate, the air inlet pipe and the blow-off pipe are arranged from top to bottom. Make absorbent and flue gas reaction, other harmful substance reactions in inside ammonia and the flue gas for the ammonia is absorbed under the liquefied state, makes the flue gas can evenly rise gradually through the sieve, and the moisture of while generation is released heat by the sulfur dioxide and is produced vapor, and the vapor remixing is in the flue gas, gets rid of solid particle's static in the smog, makes the particulate matter can subside fast in the absorber bottom, increases the cleanliness factor of sieve, the gaseous quick rise of being convenient for.

Description

Bubbling absorber for purifying sulfur-containing flue gas

Technical Field

The invention relates to the technical field of flue gas purification, in particular to a bubbling absorber for purifying sulfur-containing flue gas.

Background

The flue gas is a mixture of gas and smoke dust, and is a main reason for polluting atmosphere of residential areas, the components of the flue gas are complex, the gas comprises water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides and the like, and the smoke dust comprises ash content, coal particles, oil drops, high-temperature cracking products and the like of fuel.

After coke oven gas or petroleum is processed, a large amount of sulfur-containing flue gas is discharged from a flue gas pipeline, the working principle of a bubbling absorber for purifying the existing sulfur-containing flue gas is shown in figure 6, the flue gas enters from an air inlet pipe, then an absorption liquid is dripped from a liquid pipe onto a sieve plate, the absorption liquid is accumulated on the sieve plate, harmful substances and an absorbent react when the flue gas passes through the sieve plate to remove harmful substances in the flue gas, finally purified gas is discharged through an exhaust pipe, when the flue gas is purified, most of the absorption liquid is ammonia nitrogen absorption liquid, when the ammonia nitrogen absorption liquid is static on the sieve plate, low-temperature sulfur-containing flue gas is encountered, in addition, a large amount of solid particles are contained in smoke dust, the absorption liquid and the smoke dust are mixed together, ammonia gas and sulfur dioxide in the absorption liquid react to generate ammonium sulfate crystals, the ammonium sulfate crystals are adsorbed on the sieve plate to cause the blockage of gaps on the sieve plate, and the flue gas cannot continuously rise upwards, the flue gas outside the absorber cannot enter, the internal pressure is gradually increased, the normal use of the absorber is influenced, the absorbent is cracked when the absorber is serious, the purification of the flue gas is not facilitated, the flue gas is influenced by the absorbent in the purification process, the rising speed of the flue gas is low, the flue gas is totally accumulated at the bottom of the absorber, and the efficiency of purifying the flue gas by the absorber is low.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the bubbling absorber for purifying the sulfur-containing flue gas, which has the advantages of smooth flue gas purification and uniform flue gas rising speed and solves the problems in the background technology.

The invention provides the following technical scheme: a bubbling absorber for purifying sulfur-containing flue gas comprises an absorption tower, an air inlet pipe, a liquid inlet pipe, a sieve plate, an absorbent, a blow-off pipe and an air outlet pipe, wherein the air inlet pipe is arranged on the absorption tower, the liquid inlet pipe is arranged outside the absorption tower, the sieve plate is arranged inside the absorption tower, the absorbent is filled on the sieve plate, the blow-off pipe is arranged on the absorption tower, the air outlet pipe is arranged at the top of the absorption tower, the liquid inlet pipe, the absorbent, the sieve plate, the air inlet pipe and the blow-off pipe are arranged from top to bottom, the inside of the air inlet pipe is provided with two arc-shaped cylinders, the two arc-shaped cylinders are arranged in the air inlet pipe, the arc-shaped cylinder is provided with a bottom plate, the arc-shaped cylinder is filled with filler, the absorbent, the arc-shaped cylinder, the filler and the bottom plate form a flue gas treatment device, the bottom plate is provided with an inserted bar, a leather sheath is arranged in the arc-shaped cylinder, and the end part of the inserted bar penetrates through and extends to the outside of the leather sheath.

Preferably, the arc-shaped cylinder is arc-shaped, the arc-shaped cylinder is hollow, through holes are formed in the arc-shaped cylinder, the through holes are annularly arranged on the arc-shaped cylinder, and the two arc-shaped cylinders form a conical pipe.

Preferably, a clamping seat is installed in the arc-shaped cylinder, support rods are installed on the clamping seat, the number of the clamping seats is two, the other end of each support rod is connected with another clamping seat, a support cylinder is installed on the clamping seat, a sliding sleeve is sleeved on the support cylinder in a threaded manner and is divided into two parts, a positioning seat is installed on the sliding sleeve, a positioning rod is movably installed in the positioning seat, a sliding plate is installed on the positioning rod, air holes are formed in the sliding plate, the number of the positioning seat, the number of the positioning rod and the number of the sliding plate are two, and the other group of the positioning seat, the positioning rod and the sliding plate is installed on the arc-shaped cylinder.

The invention has the following beneficial effects:

1. this contain sulphur for flue gas purification bubbling absorber, cooperation through a ARC section of thick bamboo and filler, make contain sulphur flue gas when getting into the absorption tower through the intake pipe, directly by filler in with take place the reaction and generate sodium sulfide and water, make the sulfur dioxide in the flue gas get rid of, make absorbent and flue gas reaction, other harmful substance reactions in inside ammonia and the flue gas, make the ammonia absorb under the liquefied state, make the flue gas can evenly rise gradually through the sieve, the moisture of while generating is released heat by the sulfur dioxide and is produced vapor, vapor remixing is in the flue gas, get rid of the static of solid particle in the smog, make the particulate matter can settle fast in the absorber bottom, increase the cleanliness factor of sieve, be convenient for the gaseous quick rise.

2. This contain bubbling absorber for flue gas purification, mutually support through rubber sleeve and bottom plate, increase the stability of a ARC section of thick bamboo when the installation, make a ARC section of thick bamboo keep vertical state and install inside the air inlet pipe, make the flue gas keep certain smoothness degree when the circulation, reduce the resistance of flue gas when the circulation simultaneously, utilize the effect of a supporting cylinder and sliding sleeve, the ARC section of thick bamboo that the function of being convenient for reduces is from taking out, the filler of renewal, make the function of a ARC section of thick bamboo be in relatively stable state always, make flue gas purification's efficiency increase, slow down the jam of sieve, further improve the smoothness nature of flue gas when the circulation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a curved barrel;

FIG. 3 is a schematic view of the internal structure of the arc-shaped cylinder;

FIG. 4 is a schematic cross-sectional view of the arced barrel;

FIG. 5 is a schematic side view of the arc-shaped cylinder;

fig. 6 is a schematic diagram of a conventional structure.

In the figure: 1. an absorption tower; 2. an air inlet pipe; 3. a liquid inlet pipe; 4. a sieve plate; 5. an absorbent; 6. a blow-off pipe; 7. an air outlet pipe; 8. an arc-shaped cylinder; 9. a base plate; 10. a rubber sleeve; 11. a through hole; 12. inserting a rod; 13. a leather sheath; 14. a card holder; 15. a support bar; 16. a support cylinder; 17. a sliding sleeve; 18. positioning seats; 19. positioning a rod; 20. a sliding plate; 21. air holes are formed; 22. and (4) filling materials.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a bubbling absorber for purifying sulfur-containing flue gas comprises an absorption tower 1, an air inlet pipe 2, a liquid inlet pipe 3, a sieve plate 4, an absorbent 5, a blow-off pipe 6 and an air outlet pipe 7, wherein the air inlet pipe 2 is installed on the absorption tower 1, the liquid inlet pipe 3 is installed outside the absorption tower 1, the sieve plate 4 is installed inside the absorption tower 1, the absorbent 5 is filled on the sieve plate 4, the blow-off pipe 6 is installed on the absorption tower 1, the air outlet pipe 7 is arranged at the top of the absorption tower 1, the liquid inlet pipe 3, the absorbent 5, the sieve plate 4, the air inlet pipe 2 and the blow-off pipe 6 are arranged from top to bottom, arc-shaped cylinders 8 are installed inside the air inlet pipe 2, and the number of the arc-shaped cylinders 8 is two. The pipe diameter of the right end of the conical pipe formed by the two arc-shaped cylinders 8 is matched with the inner wall of the pipe diameter of the air inlet pipe 2, so that the arc-shaped cylinders 8 are in close contact with the pipe wall of the air inlet pipe 2, the sealing performance of the arc-shaped cylinders 8 is improved, smoke gas must flow out of the arc-shaped cylinders 8, the two arc-shaped cylinders 8 are arranged in the air inlet pipe 2, the arc-shaped cylinders 8 are provided with the bottom plates 9, the shapes of the bottom plates 9 are matched with the side shapes of the arc-shaped cylinders 8, the bottom plates 9 are just arranged on the side surfaces of the arc-shaped cylinders 8 and plug the hollow parts of the arc-shaped cylinders 8, so that the fillers 22 cannot fall out inside, the arc-shaped cylinders 8 are filled with the fillers 22, the fillers 22 are sodium hydroxide, the sodium hydroxide is 2 times of the sodium hydroxide and reacts with sulfur dioxide to generate water and sodium sulfide, sulfur dioxide in the smoke gas is taken out, and the ammonia liquid in the absorbent 5 is always in a liquefied state and cannot be crystallized, the sieve plate 4 is always in a breathable state, so that smoke can rise upwards conveniently, the blocking degree of the sieve plate 4 is reduced, the phenomenon that the sieve plate 4 is completely blocked is avoided, meanwhile, water generated by reaction is evaporated at high temperature to generate water vapor, the water vapor is mixed in the smoke again to take out static electricity of particles in the smoke, the removal of the smoke particles is increased, the particles are prevented from being brought into the sieve plate 4 by the smoke to block the sieve plate 4, the sieve plate 4 can not provide a channel for the smoke, the smoke can not rise and is completely accumulated at the bottom of the absorption tower 1 to be discharged, the purification efficiency of the smoke is influenced, the maintenance cost of the absorption tower 1 is increased, the absorbent 5, the arc-shaped cylinder 8, the filler 22 and the bottom plate 9 form a smoke treatment device, the smoke is directly purified when passing through, the absorbent 5 and the smoke can fully react, and the insertion rod 12 is installed on the bottom plate 9, install leather sheath 13 in the arc section of thick bamboo 8, increase the stability of bottom plate 9 when the installation, prevent that bottom plate 9 atress from droing, the tip of inserted bar 12 runs through and extends to the outside of leather sheath 13.

Wherein, the shape of arc section of thick bamboo 8 is the arc, arc section of thick bamboo 8 is the cavity form, through-hole 11 has been seted up on arc section of thick bamboo 8, through-hole 11 annular is arranged on arc section of thick bamboo 8, two the toper pipe is constituteed to arc section of thick bamboo 8, and the circulation of the flue gas of being convenient for slows down the resistance of flue gas when the circulation makes contact arc section of thick bamboo 8, the packing of filler 22 of being convenient for simultaneously for filler 22 fully contacts with the flue gas, and get rid of the sulfur dioxide in the flue gas, increase the stability of absorbent at the reaction time, increase the smoothness nature of smog when circulating sieve 4 simultaneously.

Wherein, a clamping seat 14 is installed in the arc-shaped cylinder 8, a support rod 15 is installed on the clamping seat 14, the number of the clamping seats 14 is two, the other end of the support rod 15 is connected with another clamping seat 14, a support cylinder 16 is installed on the clamping seat 14, a sliding sleeve 17 is sleeved on the support cylinder 16 in a threaded manner, the sliding sleeve 17 is divided into two parts, the two parts of the sliding sleeve 17 are rotatably sleeved, the joint with the support cylinder 16 is in threaded connection, the sliding sleeve 17 is rotatably connected with the outer wall of the sliding sleeve 17, when the sliding sleeve 17 rotates, the inner part rotates, the outer part does not rotate, so that the positioning seat 18 is in a stable state when moving, the positioning seat 18 is prevented from rotating along with the inner sliding sleeve 17, the positioning seat 18 is installed on the sliding sleeve 17, the positioning seat 18 is equivalent to two plates, a positioning rod 19 is rotatably connected between the two plates, so that the positioning rod 19 can rotate at different angles, the positioning seat 18 is internally and movably provided with a positioning rod 19, the positioning rod 19 is provided with a sliding plate 20, the sliding plate 20 has the effect that the sliding sleeve 17 can drive the sliding plate 20 to gradually open an angle when sliding towards the inside, so that the sliding plate 20 can conveniently open the arc-shaped cylinder 8, the arc-shaped cylinder 8 can be opened towards the outside, the influence of gravity can be avoided, the arc-shaped cylinder 8 can be closed, the conveying of smoke can be influenced, the sliding plate 20 is provided with air holes 21, the positioning seat 18, the positioning rod 19 and the sliding plate 20 are respectively two groups, and the other group of the positioning seat 18, the positioning rod 19 and the sliding plate 20 is arranged on the arc-shaped cylinder 8, so that the resistance of the smoke during circulation can be reduced, and the fluency of the smoke during circulation can be increased.

Theory of operation, contain the inside that the sulphur flue gas passes through intake pipe 2 and gets into absorption tower 1, the flue gas is before getting into absorption tower 1 inside, earlier through arc section of thick bamboo 8, sulfur dioxide in the flue gas and filler 22 take place chemical reaction, thereby generate sodium sulfide and water, sodium sulfide remains in arc section of thick bamboo 8's inside, then the flue gas is again through the inside that through-hole 11 flows in

absorption tower

1, 3 outflow absorbent 5 of feed liquor pipe this moment flow through to on sieve 4, the flue gas reacts with absorbent 5 when passing through sieve 4 again, harmful substance in the absorbent 5 absorption flue gas, the flue gas after final purification passes through outlet duct 7 and discharges.

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 contain sulphur flue gas purification and use bubbling absorber, including absorption tower (1), intake pipe (2), feed liquor pipe (3), sieve (4), absorbent (5), blow off pipe (6), outlet duct (7), install on absorption tower (1) intake pipe (2), the outside at absorption tower (1) is installed in feed liquor pipe (3), the inside at absorption tower (1) is installed in sieve (4), absorbent (5) are filled on sieve (4), install on absorption tower (1) blow off pipe (6), establish at the top of absorption tower (1) outlet duct (7), feed liquor pipe (3), absorbent (5), sieve (4), intake pipe (2), blow off pipe (6) top-down arranges, its characterized in that: the smoke treatment device is characterized in that arc-shaped cylinders (8) are mounted inside the air inlet pipe (2), the number of the arc-shaped cylinders (8) is two, the two arc-shaped cylinders (8) are arranged in the air inlet pipe (2), a bottom plate (9) is mounted on the arc-shaped cylinders (8), fillers (22) are filled in the arc-shaped cylinders (8), the absorbent (5), the arc-shaped cylinders (8), the fillers (22) and the bottom plate (9) form a smoke treatment device, an insertion rod (12) is mounted on the bottom plate (9), leather sleeves (13) are mounted in the arc-shaped cylinders (8), and the end portions of the insertion rod (12) penetrate through and extend to the outer portions of the leather sleeves (13);

the arc-shaped cylinder (8) is arc-shaped, the arc-shaped cylinder (8) is hollow, through holes (11) are formed in the arc-shaped cylinder (8), the through holes (11) are annularly arranged on the arc-shaped cylinder (8), and two arc-shaped cylinders (8) form a conical pipe;

a clamping seat (14) is arranged in the arc-shaped cylinder (8), a support rod (15) is arranged on the clamping seat (14), the number of the clamping seats (14) is two, the other end of the supporting rod (15) is connected with the other clamping seat (14), the clamping seat (14) is provided with a supporting cylinder (16), a sliding sleeve (17) is sleeved on the supporting cylinder (16) in a threaded manner, the sliding sleeve (17) is divided into two parts, a positioning seat (18) is arranged on the sliding sleeve (17), a positioning rod (19) is movably arranged in the positioning seat (18), a sliding plate (20) is arranged on the positioning rod (19), the sliding plate (20) is provided with air holes (21), the number of the positioning seats (18), the positioning rods (19) and the sliding plates (20) is two, and the other group of the positioning seats (18), the positioning rods (19) and the sliding plates (20) are arranged on the arc-shaped cylinder (8).