CN212236711U - Oxidation system for absorption tower - Google Patents
Oxidation system for absorption tower Download PDFInfo
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- CN212236711U CN212236711U CN202020883259.6U CN202020883259U CN212236711U CN 212236711 U CN212236711 U CN 212236711U CN 202020883259 U CN202020883259 U CN 202020883259U CN 212236711 U CN212236711 U CN 212236711U
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- oxidation
- stirrer
- absorption tower
- main shaft
- spray gun
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Abstract
The utility model discloses an oxidation system for an absorption tower, which comprises an air inlet main pipe for introducing oxidation air into the absorption tower, and an annular air distribution pipe which is connected with the air inlet main pipe and is arranged along the circumference of a tower body; a plurality of oxidation spray guns are arranged on the air distribution pipe; the device also comprises a stirrer arranged below and behind the oxidation spray gun, wherein the stirrer comprises a motor and a main shaft driven by the motor to rotate, and an impeller is fixedly sleeved on the main shaft; the opening of the oxidation spray gun is downward, and the impeller is positioned behind the opening of the oxidation spray gun; the main shaft of the stirrer inclines downwards, and the inclination angle of the main shaft of the stirrer ranges from 7 degrees to 9 degrees; and the included angle of the connecting line of the main shaft of the stirrer and the center of the tower body in the horizontal direction is 9-11 degrees. Through the arrangement angle of the immersion depth of the oxidation spray gun and the stirrer, the slurry in the slurry pool of the absorption tower is rotated, forced disturbance is carried out by combining the stirrer, the dead zone of stirring in the absorption tower is effectively prevented, and the slurry is prevented from precipitating and scaling.
Description
Technical Field
The utility model relates to an oxidation system for absorption tower.
Background
At present, in the limestone-gypsum wet desulphurization field, the absorption tower slurry oxidation trend is mainly forced oxidation, and the measure is to introduce excessive air into the absorption tower slurry and oxidize sulfur in the slurry through a large amount of oxygen to finally generate gypsum slurry. The oxidation effect of the oxidation mode is influenced by the depth of the slurry in the absorption tower, the density of the slurry, the temperature of the slurry, the pH value of the slurry, the pressure of air and the like, and the arrangement position of equipment is also an important factor influencing the oxidation, so the reasonable selection and design of the oxidation device are important for the oxidation of the slurry in the absorption tower and the removal of sulfur dioxide. The existing oxidation system is unreasonable in arrangement and is easy to generate oxidation dead angles, so that the oxidation efficiency is not high, and the removal effect of sulfur dioxide is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an oxidation system for absorption tower can effectively avoid the production at oxidation dead angle, improves oxidation efficiency.
In order to solve the technical problem, the technical scheme of the utility model is to adopt an oxidation system for the absorption tower, which comprises an air inlet main pipe for introducing oxidation air into the absorption tower, and an annular air distribution pipe which is connected with the air inlet main pipe and is arranged along the circumference of the tower body; a plurality of oxidation spray guns are arranged on the air distribution pipe; the device also comprises a stirrer arranged below and behind the oxidation spray gun, wherein the stirrer comprises a motor and a main shaft driven by the motor to rotate, and an impeller is fixedly sleeved on the main shaft; the opening of the oxidation spray gun is downward, and the impeller is positioned behind the opening of the oxidation spray gun; the main shaft of the stirrer inclines downwards, and the inclination angle of the main shaft of the stirrer ranges from 7 degrees to 9 degrees; and the included angle of the connecting line of the main shaft of the stirrer and the center of the tower body in the horizontal direction is 9-11 degrees. The utility model discloses the immersion depth of fully considering oxidation spray gun and the angle of arranging of agitator, every agitator central line and absorption tower central line differ 9 ~ 11, downward sloping, make the thick liquid rotation in absorption tower thick liquid pond, combine the agitator to force the disturbance, effectively prevent that the stirring blind spot from appearing in the absorption tower, avoid the thick liquid to take place to deposit and scale deposit.
As an improvement, the main shaft of the stirrer inclines towards a clockwise direction when viewed from the top. Causing the slurry to rotate clockwise.
As a further improvement, a flushing port for cleaning an opening of the oxidation spray gun is arranged behind the impeller. Also wash the oxidation tuber pipe through the sparge water when shutting down the maintenance, thereby prevent that the gypsum caking of the interior heap of oxidation spray gun from reducing flow area and increasing the resistance and leading to the thick liquid pond oxidation inhomogeneous.
As another further improvement, a spraying system used for cooling the oxidizing air is arranged in the air inlet main pipe. Cooling water is atomized into fine liquid drops, and the high-temperature (about 140 ℃) oxidizing air is cooled to be within 60 ℃.
As an improvement, a temperature sensor is arranged behind the spraying system in the air inlet main pipe and connected with the spraying system. And feeding back according to the temperature measured value, and adjusting the opening of the cooling water electric adjusting valve so as to adjust the flow of cooling water to achieve the purpose of controlling the temperature.
As an improvement, the opening of the oxidation spray gun is provided with an inclined surface facing the center of the tower body.
The utility model discloses an useful part lies in: the oxidation system of absorption tower with above-mentioned structure through the arrangement angle of the immersion depth of adjustment oxidation spray gun and agitator, makes the thick liquid rotation in absorption tower thick liquid pond, combines the agitator to carry out the compulsory disturbance, prevents effectively that the stirring blind spot from appearing in the absorption tower, avoids the thick liquid to take place to deposit and scale deposit. The oxidation efficiency is greatly improved, thereby improving the absorption effect of absorbing sulfur dioxide.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the oxidation lance and agitator of the present invention.
Fig. 3 is a top view of the oxidation lance and agitator of the present invention.
The labels in the figure are: the device comprises a tower body 1, a main air inlet pipe 2, a spraying system 3, an air distribution pipe 4, an oxidation spray gun 5, a stirrer 6, a flushing port 7, a motor 61, a main shaft 62 and an impeller 63.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the specific embodiments.
As shown in fig. 1, fig. 2 and fig. 3, the utility model comprises an air inlet main pipe 2 for introducing oxidation air into the absorption tower 1, and an annular air distribution pipe 4 connected with the air inlet main pipe 2 and arranged along the circumference of the tower body 1; a plurality of oxidation spray guns 5 are arranged on the air distribution pipe 4; the device also comprises a stirrer 6 arranged below and behind the oxidation spray gun 5, wherein the stirrer 6 comprises an electric motor 61 and a main shaft 62 driven by the electric motor 61 to rotate, and an impeller 63 is fixedly sleeved on the main shaft 62; the opening of the oxidation spray gun 5 faces downwards, and the opening of the oxidation spray gun 5 is provided with an inclined plane facing the center of the tower body 1. The impeller 63 is positioned behind the opening of the oxidation spray gun 5; the main shaft 62 of the stirrer 6 is inclined downwards, and the inclination angle is 7-9 degrees; and the included angle of the main shaft 62 of the stirrer 6 and the central connecting line of the tower body 1 in the horizontal direction is 9-11 degrees. Preferably, the main shaft 62 of the agitator 6 is inclined in the clockwise direction as viewed from above.
And a flushing port 7 for cleaning the opening of the oxidation spray gun 5 is arranged behind the impeller 63, so that gypsum agglomeration is avoided. A spraying system 3 used for cooling the oxidation air is arranged in the air inlet main pipe 2. A temperature sensor is arranged in the air inlet main pipe 2 behind the spraying system 3 and connected with the spraying system 3.
The opening of the oxidation spray gun 5 is arranged in front of the stirrer 6, and because the stirrer 6 stirs the oxidation air, a large stream of oxidation air is effectively split into small air bubbles (the contact area of the oxidation air and the slurry is increased), and meanwhile, the oxidation air also rotates clockwise along with the slurry, so that the retention time of the oxidation air in the slurry and the contact of the oxidation air and calcium sulfite are increased, the oxidation reaction of the calcium sulfite is promoted, and the oxidation effect is better.
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 (6)
1. The utility model provides an oxidation system for absorption tower, includes to the female pipe of the air inlet that lets in oxidation air in the absorption tower which characterized in that: the annular air distribution pipe is connected with the air inlet main pipe and is arranged along the circumference of the tower body; a plurality of oxidation spray guns are arranged on the air distribution pipe; the device also comprises a stirrer arranged below and behind the oxidation spray gun, wherein the stirrer comprises a motor and a main shaft driven by the motor to rotate, and an impeller is fixedly sleeved on the main shaft; the opening of the oxidation spray gun is downward, and the impeller is positioned behind the opening of the oxidation spray gun; the main shaft of the stirrer inclines downwards, and the inclination angle of the main shaft of the stirrer ranges from 7 degrees to 9 degrees; and the included angle of the connecting line of the main shaft of the stirrer and the center of the tower body in the horizontal direction is 9-11 degrees.
2. The oxidation system for an absorption tower according to claim 1, wherein: the agitator main shaft inclines clockwise when viewed from above.
3. The oxidation system for an absorption tower according to claim 1, wherein: and a flushing port for cleaning an opening of the oxidation spray gun is arranged behind the impeller.
4. The oxidation system for an absorption tower according to claim 1, wherein: and a spraying system used for cooling the oxidation air is arranged in the air inlet main pipe.
5. The oxidation system for an absorption tower according to claim 1, wherein: a temperature sensor is arranged in the air inlet main pipe behind the spraying system and connected with the spraying system.
6. The oxidation system for an absorption tower according to claim 1, wherein: the opening of the oxidation spray gun is provided with an inclined plane facing the center of the tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883259.6U CN212236711U (en) | 2020-05-22 | 2020-05-22 | Oxidation system for absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883259.6U CN212236711U (en) | 2020-05-22 | 2020-05-22 | Oxidation system for absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212236711U true CN212236711U (en) | 2020-12-29 |
Family
ID=73976404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020883259.6U Active CN212236711U (en) | 2020-05-22 | 2020-05-22 | Oxidation system for absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212236711U (en) |
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2020
- 2020-05-22 CN CN202020883259.6U patent/CN212236711U/en active Active
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