CN220194515U - Desulfurizing tower system - Google Patents
Desulfurizing tower system Download PDFInfo
- Publication number
- CN220194515U CN220194515U CN202321106187.4U CN202321106187U CN220194515U CN 220194515 U CN220194515 U CN 220194515U CN 202321106187 U CN202321106187 U CN 202321106187U CN 220194515 U CN220194515 U CN 220194515U
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- CN
- China
- Prior art keywords
- pipe
- desulfurizing tower
- slurry
- bubbling
- desulfurization tower
- Prior art date
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- 230000003009 desulfurizing effect Effects 0.000 title claims description 44
- 230000005587 bubbling Effects 0.000 claims abstract description 42
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 35
- 230000023556 desulfurization Effects 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 210000002445 nipple Anatomy 0.000 claims description 2
- 239000002002 slurry Substances 0.000 abstract description 47
- 230000000694 effects Effects 0.000 abstract description 5
- 239000013049 sediment Substances 0.000 abstract description 5
- 238000004062 sedimentation Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 11
- 238000001556 precipitation Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a desulfurization tower system, which is characterized by comprising a desulfurization tower, wherein a bubbling pipe network is arranged at the bottom of the desulfurization tower, bubbling nozzles are arranged below the tail ends of all branch pipes of the bubbling pipe network, the upper side of the interior of the desulfurization tower is connected with a disturbance pump through a first liquid inlet pipe, a liquid outlet pipe of the disturbance pump is provided with a pressure detection device, the liquid outlet pipe of the disturbance pump is connected with a second liquid inlet pipe of the bubbling pipe network, the advantage is that slurry with low concentration at the upper layer of the interior of the desulfurization tower is pumped by the disturbance pump, pressurized by the pump and then is pumped into the bubbling pipe network in the desulfurization tower, the slurry is sprayed into the slurry tank bottom of the desulfurization tower through the tail end discharge nozzles of all branch pipes uniformly distributed in the bubbling pipe network under certain spraying pressure, and the high-concentration sediment slurry at the bottom of the desulfurization tower is disturbed and suspended under the impact of the slurry at the outlet of the nozzles, so that the effect of preventing the slurry from sedimentation is achieved.
Description
Technical Field
The utility model relates to the technical field of desulfurization, in particular to a slurry bubbling stirring system of a desulfurization tower.
Background
In recent years, with the increasing requirements of the country on environmental protection, the air pollution control equipment of each industry receives high attention from local governments. The iron and steel industry is used as a heavy pollution industry, the tail gas of a sintering machine of an iron and steel plant contains a large amount of harmful substances such as sulfur dioxide, and sulfur dioxide in the flue gas needs to be desulfurized in order to protect the environment. At present, a limestone-gypsum desulfurization process is commonly adopted in China, a desulfurization tower is used as core equipment for whole flue gas treatment, desulfurization slurry after flue gas desulfurization has the characteristic of easy precipitation, and the desulfurization slurry after desulfurization must be stirred in time to prevent the precipitation of the slurry. Therefore, the research on a reliable and efficient desulfurizing tower slurry stirring device is extremely critical.
Conventional desulfurizing tower thick liquid agitating unit adopts side axial flow type agitator, but adopts side agitator stirring to have certain limitations, such as: (1) Because the stirrer is uniformly distributed around the circumference of the wall of the desulfurization tower, the stirrer is far away from the center of the tower, the stirring effect at the center of the tower is poor, and the slurry is easy to precipitate. (2) Since the stirrer cannot be too close to the inlet of the circulating pump of the desulfurizing tower, a stirring dead zone exists at the inlet of the circulating pump of the desulfurizing tower. (3) The side stirrer of the desulfurizing tower is generally free from standby, and once one stirrer fails, a large amount of sediment can appear in the desulfurizing tower, so that the normal operation of the desulfurizing circulating pump is influenced, and the operation reliability is lower. (4) The PH of the desulfurized slurry is lower and is generally between 5 and 6, in addition, the chloride ion concentration of the desulfurized slurry is 20000ppm, and the corrosion of the slurry is higher, so that the material of the stirrer blade is generally alloy 2507 or 1.4529, and the investment and operation cost is higher. (5) The unreacted limestone in the desulfurization slurry contains a small amount of quartz sand, and the abrasion to the blades of the stirrer is relatively large. Aiming at the defects of the conventional stirrer, the slurry bubbling stirring device of the desulfurizing tower is provided, the non-precipitation in the central area of the desulfurizing tower can be ensured, the whole slurry area is uniformly stirred, and the investment and operation cost of the device is economical and reasonable.
Disclosure of Invention
The utility model aims to solve the technical problems and provide the slurry bubbling stirring system of the desulfurizing tower, which ensures that slurry in the central area of the desulfurizing tower is not precipitated, the whole slurry area is uniformly stirred, and the investment and the operation cost of the device are economical and reasonable.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a desulfurizing tower system, includes the desulfurizing tower, the bottom is equipped with the bubble pipe network in the desulfurizing tower, each branch pipe terminal below of bubble pipe network is equipped with the bubble nozzle, the inside upside of desulfurizing tower is connected with the disturbance pump through first feed liquor pipe, be equipped with pressure detection device on the drain line of disturbance pump, the drain line of disturbance pump with the second feed liquor pipe of bubble pipe network links to each other.
In order to ensure continuous and stable operation of the stirring system, a further preferable technical scheme is that the upper side of the inside of the desulfurizing tower is connected with two disturbance pumps through a first liquid inlet pipe.
In order to prevent large particulate matters from being sucked into the pump body and from being violently collided with the impeller, and prevent abrasion of the pump body and blockage of a pump suction inlet after the desulfurization tower is stopped, the further preferable technical scheme is that the first liquid inlet pipe is arranged in a high-low mode through double inlets, and a filter screen is arranged at the inlet of the first liquid inlet pipe.
In order to prevent the pressure gauge from being blocked by slurry, a further preferable technical scheme is that the pressure detection device is a diaphragm type pressure gauge.
In order to prevent that disturbance pump stops back first feed liquor pipe and drain pipe from blockking up, further preferred technical scheme has, all be equipped with washing unit and evacuation pipe on first feed liquor pipe and the drain pipe of disturbance pump both sides, the evacuation pipe is connected to the trench, all be equipped with the valve on first feed liquor pipe, drain pipe and the evacuation pipe.
In order to prevent the bubbling pipe network from falling and stabilize the bubbling pipe network, a further preferable technical scheme is that each branch pipe of the bubbling pipe network and the second liquid inlet pipe are hung at the bottom in the desulfurization tower.
In order to facilitate the replacement of the nozzle, a further preferable technical scheme is that the bubbling nozzle comprises a nozzle connecting pipe, a flange and a pulse nozzle which are connected in sequence.
In order to prevent the bubbling nozzle from scouring the bottom plate of the desulfurization tower, a further preferable technical scheme is that the bottom of the desulfurization tower is paved with an anti-abrasion plate.
Compared with the prior art, the utility model has the beneficial effects that: the utility model pumps the slurry with low concentration at the upper layer inside the desulfurization tower through the disturbance pump, the slurry is pressurized through the pump and then is pumped into a bubbling pipe network in the desulfurization tower, the slurry is sprayed into the bottom of the slurry tank of the desulfurization tower through the tail end discharge nozzles of all branch pipes uniformly distributed in the bubbling pipe network by bubbling with a certain blowing pressure, and the high-concentration precipitation slurry at the bottom of the tower is disturbed and suspended under the impact of the slurry at the outlet of the nozzles, so that the effect of preventing precipitation of the slurry is achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a connecting of a disturbance pump of the present utility model with a first feed pipe;
FIG. 3 is a schematic diagram of a bubbling nozzle according to the present utility model;
FIG. 4 is a schematic diagram of the distribution structure of the branch pipes of the bubbling pipe network according to the present utility model;
in the figure: 1. a desulfurizing tower; 2. a filter screen; 3. a perturbation pump; 4. a first liquid inlet pipe; 5. a high suction inlet; 6. a low suction inlet; 7. an evacuation tube; 8. a liquid outlet pipe; 9. a flushing device; 10. a trench; 11. a pressure testing device; 12. a second liquid inlet pipe; 13. a bubbling pipe network; 14. a bubbling nozzle; 15. an abrasion-proof plate; 16. a valve; 17. a pulse nozzle; 18. a nozzle connecting pipe; 19. a flange; 20. a branch pipe; 21. and (5) hanging a bracket.
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.
Example 1
As shown in fig. 1-4, a desulfurizing tower system comprises a desulfurizing tower 1, wherein a bubbling pipe network 13 is arranged at the inner bottom of the desulfurizing tower 1, bubbling nozzles 14 are arranged below the tail ends of all branch pipes 20 of the bubbling pipe network 13, a disturbance pump 3 is connected to the upper side of the inner part of the desulfurizing tower 1 through a first liquid inlet pipe 4, and specifically, two disturbance pumps are connected to the upper side of the inner part of the desulfurizing tower 1 through two first liquid inlet pipes 4. The disturbance pump 3 adopts a corrosion-resistant and wear-resistant dual-phase alloy horizontal centrifugal pump, and is arranged in a standby mode, so that continuous and stable operation of a stirring system is ensured. Only one pump is operated in normal operation, and the operation cost is low. The first liquid inlet pipe 4 adopts double-inlet high-low arrangement and comprises a high suction inlet 5 and a low suction inlet 6, and because slurry in the desulfurizing tower 1 is easy to precipitate in a short time, in order to prevent the blocking of the pump suction inlet after the shutdown of the desulfurizing tower 1, the low suction inlet 6 is adopted when the disturbance pump 3 is started after the short-term shutdown of the desulfurizing tower 1; when the disturbing pump 3 is started after the desulfurizing tower 1 is stopped for a long time, the high suction inlet 5 is adopted, and the setting height of the high suction inlet 5 is larger than the maximum precipitation height of slurry sediment in the desulfurizing tower 1, so that the slurry sediment in the desulfurizing tower 1 can not be submerged by solid matters. The high suction inlet 5 and the low suction inlet 6 of the first liquid inlet pipe 4 are respectively provided with a filter screen 2. On one hand, the filter screen 2 prevents large particulate matters from being sucked into the disturbance pump 3 to be in violent collision with the impeller, prevents the disturbance pump 3 from being worn, prolongs the service life of the disturbance pump 3, and plays a role in protecting the disturbance pump 3; on the other hand, the filter screen 2 can prevent the bubbling nozzle 14 at the tail end of the bubbling pipe network 13 from being blocked, so that the bubbling stirring effect is prevented from being influenced.
The liquid outlet pipe 8 of the disturbance pump 3 is provided with a pressure detection device 11, and particularly, the pressure detection device 11 adopts a diaphragm type pressure gauge, and the arrangement of the pressure detection device 11 can effectively monitor the bubbling disturbance force of a bubbling pipe network 13 in the desulfurization tower 1, so that reliable data is provided for the operation and maintenance of the system; the diaphragm type pressure gauge interface can prevent the problem that the pressure gauge is blocked by slurry. The liquid outlet pipe 8 of the disturbance pump is connected with a second liquid inlet pipe 12 of the bubbling pipe network 13. Specifically, the first liquid inlet pipe 4 and the liquid outlet pipe 8 are made of glass fiber reinforced plastic materials, and the glass fiber reinforced plastic materials have excellent acid resistance due to the low pH value of the desulfurization slurry. Because the slurry of the desulfurizing tower 1 contains easily-ground substances such as silicon dioxide and the like, the first liquid inlet pipe 4 and the liquid outlet pipe 8 are doped with abrasion-resistant silicon carbide powder, the whole thickness is not less than 4mm, and the service life of a pipeline is effectively protected. The first feed liquor pipe 4 and the drain pipe 8 on both sides of the disturbance pump 3 are respectively provided with a flushing device 9 and an emptying pipe 7, the emptying pipe 7 is connected to a trench 10, in order to prevent the first feed liquor pipe 4 and the drain pipe 8 from being blocked after the disturbance pump 3 stops operating, the disturbance pump 3 timely flushes sediment in a pipeline to the trench 10 through flushing water after being stopped, and the guaranteed first feed liquor pipe 4 and the drain pipe 8 are respectively provided with a valve 16.
Each branch pipe of the bubbling pipe network 13 and the second liquid inlet pipe 12 are hung at the bottom in the desulfurizing tower 1. The hanger is adopted for fixation, so that the impact of slurry in the liquid outlet pipe on the pipe network support 21 is effectively prevented, and the support 21 is arranged in a net shape to strengthen the stability of the whole bubbling pipe network 13. The bubbling nozzle 14 includes a nozzle nipple 18, a flange 19, and a pulse nozzle 17, which are sequentially connected. The flange type silicon carbide solid nozzle is adopted, the silicon carbide material is wear-resistant and corrosion-resistant, the service life of the pulse nozzle 17 is prolonged, and the flange type connection mode is convenient for the later maintenance and replacement of the pulse nozzle 17. The bubbling nozzles 14 in the bubbling pipe network 13 are designed in a uniform distribution mode (as shown in fig. 4) of the whole slurry section area, and the bubbling disturbance coverage rate of the whole slurry area is not lower than 150% of the sectional area of the slurry area, so that the stirring uniformity of the desulfurization slurry is effectively ensured. The bottom of the desulfurizing tower is paved with an anti-wear plate, and particularly a silicon dioxide anti-wear ceramic tile anti-wear plate is paved to prevent the bubbling nozzle 14 from scouring the bottom plate of the desulfurizing tower.
The utility model pumps the slurry with low concentration at the upper layer inside the desulfurization tower through the disturbance pump, the slurry is pressurized through the pump and then is pumped into a bubbling pipe network in the desulfurization tower, the slurry is sprayed into the bottom of the slurry tank of the desulfurization tower through the tail end discharge nozzles of all branch pipes uniformly distributed in the bubbling pipe network by bubbling with a certain blowing pressure, and the high-concentration precipitation slurry at the bottom of the tower is disturbed and suspended under the impact of the slurry at the outlet of the nozzles, so that the effect of preventing precipitation of the slurry is achieved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. The utility model provides a desulfurizing tower system, its characterized in that includes the desulfurizing tower, the bottom is equipped with the bubble pipe network in the desulfurizing tower, each branch pipe terminal below of bubble pipe network is equipped with the bubble nozzle, the inside upside of desulfurizing tower is connected with the disturbance pump through first feed liquor pipe, be equipped with pressure detection device on the drain line of disturbance pump, the drain line of disturbance pump with the second feed liquor pipe of bubble pipe network links to each other.
2. The desulfurizing tower system of claim 1, wherein the upper side of the interior of the desulfurizing tower is connected with two disturbance pumps through a first liquid inlet pipe.
3. The desulfurizing tower system of claim 1, wherein said first liquid inlet pipe is arranged at a height of two inlets, and a filter screen is arranged at the inlet of said first liquid inlet pipe.
4. The desulfurization tower system of claim 1, wherein said pressure detecting means is a diaphragm type pressure gauge.
5. The desulfurizing tower system of claim 1, wherein the first liquid inlet pipe and the liquid outlet pipe on both sides of the disturbance pump are respectively provided with a flushing device and an emptying pipe, the emptying pipe is connected to the trench, and the first liquid inlet pipe, the liquid outlet pipe and the emptying pipe are respectively provided with a valve.
6. The desulfurization tower system of claim 1, wherein each branch pipe of the bubbling pipe network and the second liquid inlet pipe are suspended at the bottom of the desulfurization tower.
7. The desulfurization tower system of claim 1, wherein said bubbling nozzle comprises a nozzle nipple, a flange, and a pulse nozzle connected in sequence.
8. The desulfurizing tower system of claim 1, wherein said desulfurizing tower bottom is provided with wear plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321106187.4U CN220194515U (en) | 2023-05-09 | 2023-05-09 | Desulfurizing tower system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321106187.4U CN220194515U (en) | 2023-05-09 | 2023-05-09 | Desulfurizing tower system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220194515U true CN220194515U (en) | 2023-12-19 |
Family
ID=89140556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321106187.4U Active CN220194515U (en) | 2023-05-09 | 2023-05-09 | Desulfurizing tower system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220194515U (en) |
-
2023
- 2023-05-09 CN CN202321106187.4U patent/CN220194515U/en active Active
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