CN217887499U - High efficiency removes calcium-based desulphurization unit of bed - Google Patents
High efficiency removes calcium-based desulphurization unit of bed Download PDFInfo
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- CN217887499U CN217887499U CN202222196991.8U CN202222196991U CN217887499U CN 217887499 U CN217887499 U CN 217887499U CN 202222196991 U CN202222196991 U CN 202222196991U CN 217887499 U CN217887499 U CN 217887499U
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- Prior art keywords
- desulfurization
- desulfurizing tower
- tower
- tertiary
- negative
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000011575 calcium Substances 0.000 title claims abstract description 16
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 16
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 84
- 230000023556 desulfurization Effects 0.000 claims abstract description 84
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims description 12
- 239000003546 flue gas Substances 0.000 abstract description 40
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 39
- 230000035484 reaction time Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 235000003599 food sweetener Nutrition 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 239000003765 sweetening agent Substances 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model provides a high efficiency removes bed calcium base desulphurization unit, relate to smoke and dust sweetener field, including the desulfurization case, a side symmetry of desulfurization case is provided with two intake pipes and a negative-pressure air pipe, the negative-pressure air pipe is connected with the outlet duct that is in the same height with the intake pipe through negative-pressure air blower, the symmetry is provided with two sets of desulfurization subassemblies in the desulfurization case, the desulfurization subassembly includes the one-level desulfurizing tower, second grade desulfurizing tower and the tertiary desulfurizing tower that equidistant setting, the upper portion and the lower part of one-level desulfurizing tower, second grade desulfurizing tower and tertiary desulfurizing tower are connected with feeder hopper and the play hopper that is in the desulfurization case outside respectively, all be provided with the valve on feeder hopper and the play hopper; the flue gas velocity of flow of this device can reduce by 50% with current desulphurization unit middle part lets in comparing the velocity of flow, has prolonged the reaction time of flue gas and desulfurizer, makes the desulfurization effect more thorough, can improve the utilization ratio of desulfurizer after the new technology transformation simultaneously, and artifical flow is installed additional and is discharged after letting the desulfurizer saturate and handle.
Description
Technical Field
The utility model belongs to the technical field of smoke and dust sweetener and specifically relates to a high efficiency removes bed calcium base desulphurization unit.
Background
The existing moving bed calcium-based desulfurization device has the following desulfurization mode:
1. the flue gas enters from the inlet at the middle part of the desulfurizing tower, passes through the desulfurizing agent layers which cross across the two sides, and is discharged out of the desulfurizing tower after being absorbed and converged by negative pressure from the sub-flue at the two sides.
2. The flue gas is subjected to the resistance of the filling height of the desulfurizer and the thickness of the desulfurizer layer, the contact area crossing the desulfurizer layer is limited, the reaction time is short, and the utilization efficiency of the desulfurizer is low.
The moving bed calcium-based desulfurization device mainly adopts a mode that flue gas traverses a primary desulfurizing agent layer or is deflected once to carry out gas-solid contact. The thickness of the desulfurizer layer is generally not more than 1.5 m under the limitation of the space or volume of the desulfurizer, the passing area and flow velocity of the flue gas are not beneficial to calcium-based desulfurization, and the effective utilization rate of the desulfurizer is only about 40%. Firstly, the resource waste is serious, the operation cost is increased, secondly, the desulfurization efficiency is low, and the data frequently exceed the standard.
SUMMERY OF THE UTILITY MODEL
The area and the velocity of flow that exist the flue gas and pass desulphurization unit among the prior art do not all do benefit to the problem that calcium base desulfurization and desulfurizer utilization efficiency are low, the utility model provides a high efficiency removes bed calcium base desulphurization unit can avoid the emergence of above-mentioned problem.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a high efficiency removes bed calcium base desulphurization unit, including the desulfurization case, the one side symmetry of desulfurization case is provided with two intake pipes and a negative-pressure air pipe, negative-pressure air pipe is connected with the outlet duct that is located same height with the intake pipe through negative-pressure air blower, the desulfurization incasement symmetry is provided with two sets of desulfurization subassemblies, the desulfurization subassembly includes the one-level desulfurizing tower that equidistant set up, second grade desulfurizing tower and tertiary desulfurizing tower, the one-level desulfurizing tower, the upper portion and the lower part of second grade desulfurizing tower and tertiary desulfurizing tower are connected with feeder hopper and the play hopper that is in the desulfurization incasement portion respectively, all be provided with the valve on feeder hopper and the play hopper, the one-level desulfurizing tower, a plurality of circulation holes have all been seted up on the surface of second grade desulfurizing tower and tertiary desulfurizing tower, negative-pressure air pipe is in the center of two one-level desulfurizing towers.
The flue gas velocity of flow can reduce by 50% with current desulphurization unit middle part lets in comparing the velocity of flow, has prolonged the reaction time of flue gas and desulfurizer, makes the desulfurization effect more thorough, changes the tertiary desulfurization of unilateral into after the new technology transformation and simultaneously installs additional the utilization ratio that can improve the desulfurizer through artifical flow, lets discharge again after the desulfurizer saturation and handles.
Furthermore, one side of the three-stage desulfurizing tower is provided with an air-equalizing plate, and a plurality of air-equalizing holes are formed in the air-equalizing plate.
The air-equalizing plate in the scheme can improve the uniformity of the flue gas introduced into the desulfurizing tower, and ensures the desulfurizing effect of the desulfurizing agent which is fully contacted with the flue gas.
Furthermore, the desulfurization box is connected with a sealing door in a rotating manner, and the sealing door is provided with a handle.
The inside of the desulfurization box is conveniently overhauled by opening and closing the sealing door in the scheme.
Further, one-level desulfurizing tower, second grade desulfurizing tower, tertiary desulfurizing tower and the equal aerofoil all closely laminate with the inner wall of desulfurization case.
Three desulfurizing tower and the board of wind of equalizing all with the desulfurization incasement wall is closely laminated after the sealing door is closed in above-mentioned scheme, guarantees that the flue gas can only pass through from the hole of wind equalizing and circulation hole.
Furthermore, a collection box is placed at the lower end of each discharge hopper.
The desulfurizer discharged in the scheme enters the collection box to be collected and then is installed in other desulfurization towers again to improve the utilization rate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. after the device adopts a new process, the flue gas flow velocity can be reduced by 50 percent compared with the original design flow velocity, the reaction time of the flue gas and the desulfurizer is prolonged, and the desulfurization effect is more thorough.
2. The device can effectively utilize the desulfurizer after the new process is improved, can better play the desulfurization efficiency of the desulfurizer through three-level desulfurization, and saves resources.
3. The device can bear the fluctuation range of the concentration of sulfur dioxide in the flue gas in a larger range after the new process is improved, and the standard emission of the desulfurization index is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of reference character A in FIG. 1;
fig. 3 is a schematic view of the installation of the negative pressure fan of the present invention;
reference numerals:
1. a desulfurization box; 11. a sealing door; 12. a handle; 13. an air inlet pipe; 14. a negative pressure fan; 15. an air outlet pipe; 16. a negative pressure air pipe; 21. a first-stage desulfurizing tower; 22. a secondary desulfurization tower; 23. a third-stage desulfurizing tower; 24. a feed hopper; 25. a discharge hopper; 26. a flow-through hole; 3. a collection box; 4. a wind equalizing plate; 41. air equalizing holes.
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, a high-efficiency moving bed calcium-based desulfurization device comprises a desulfurization box 1, wherein two air inlet pipes 13 and a negative pressure air pipe 16 are symmetrically arranged on one side of the desulfurization box, the negative pressure air pipe is connected with an air outlet pipe 15 which is at the same height with the air inlet pipes through a negative pressure fan 14, one end of the air inlet pipe is connected with a flue gas pipeline, the flue gas pipeline continuously conveys flue gas into the desulfurization box, the flue gas contains a large amount of sulfur dioxide, the flue gas is simultaneously introduced into the desulfurization box from the two air inlet pipes on one side surface of the desulfurization box for centralized absorption treatment, and the flue gas inlet is changed from two side flue gas distribution channels as inlets, so that the gas distribution area of the air inlet can be increased, the flue gas flow rate can be effectively reduced, and the contact reaction time of the flue gas and a desulfurizing agent can be increased; when the flue gas is introduced into the desulfurization box, the negative pressure fan starts to work to suck the flue gas, the flue gas is sequentially absorbed by multiple layers of desulfurizing agents and then is discharged through the air outlet pipe, the air inlet pipe and the air outlet pipe are positioned at the same horizontal height, the flue gas enters the desulfurization box from the side, a desulfurization process can be effectively carried out on the flue gas, the flue gas enters other equipment from the air outlet pipe after the desulfurization is finished to be processed in the next step, two groups of desulfurization components are symmetrically arranged in the desulfurization box and comprise a primary desulfurization tower 21, a secondary desulfurization tower 22 and a tertiary desulfurization tower 23, the primary desulfurization tower, the secondary desulfurization tower and the tertiary desulfurization tower are arranged at equal intervals and are connected with a feed hopper 24 and a discharge hopper 25, valves are arranged on the feed hopper and the discharge hopper, the feed hopper and the discharge hopper are positioned outside the desulfurization box and are further refined, and the feed hopper and the discharge hopper are respectively positioned at the upper part and the lower part of the desulfurization box; can control install and unload additional of desulfurization case, this process is installed additional by artifical flow, and collecting box 3 has all been placed to the lower extreme of a plurality of play hoppers, and the desulfurizer after unloading gets into to collect in the collecting box again after installs rate of utilization in other desulfurizing towers additional, a plurality of opening 26 have all been seted up on the surface of one-level desulfurizing tower, second grade desulfurizing tower and tertiary desulfurizing tower, and the flue gas carries out the desulfurization process in getting into three desulfurizing tower from the opening in proper order under the effect of negative pressure, and former desulfurizer is unilateral one-level desulfurization, is now changing into unilateral tertiary desulfurization. The method comprises the following steps that (1) flue gas is desulfurized through three stages of desulfurization towers (mainly used for purification and primary desulfurization), solid particles in the flue gas are removed, and the purified flue gas is desulfurized through two stages of desulfurization towers and one stage of desulfurization towers respectively; the one-level desulfurizing tower installs the desulfurizer additional and through a period of operation after, emits from a hopper, installs the second grade desulfurizing tower additional again, in the second grade desulfurization stage, the effective utilization ratio of desulfurizer can promote more than 70%, and tertiary desulfurizing tower is added to the desulfurizer of emitting from the second grade desulfurizing tower, and sulfur dioxide concentration is the highest in the flue gas of tertiary desulfurizing tower contact, and usable remaining active ingredient carries out preliminary desulfurization to block the solid particle thing in the flue gas. Treating the discharged desulfurizer after the tertiary desulfurization as solid waste; therefore, the comprehensive utilization rate of the desulfurizer can be effectively improved, the desulfurizer is discharged for treatment after being saturated and failed, and finally the saturated and failed desulfurizer is discharged from the three-stage desulfurizing tower.
According to the embodiment of the present invention, as shown in fig. 1 and 2, an air-equalizing plate 4 is disposed on one side of the tertiary desulfurization tower, and a plurality of air-equalizing holes 41 are disposed on the air-equalizing plate; the uniform air plate can improve the uniformity of the flue gas introduced into the desulfurizing tower, and ensure that the desulfurizing agent is fully contacted with the flue gas for desulfurization.
According to further refinement of the embodiment of the present invention, as shown in fig. 1, a sealing door 11 is rotatably connected to the desulfurization box, and a handle 12 is arranged on the sealing door; set up the sealing door and can in time open when the inside trouble of desulfurization case and overhaul, close the inside leakproofness of back sealing door assurance desulfurization case, the excessive of flue gas can not appear, it needs to explain, after closing the sealing door, three desulfurizing tower and wind-equalizing plate all closely laminate with the inner wall of desulfurization case, guarantee that all flue gases must be through wind-equalizing plate and three desulfurizing tower handle the back outside the desulfurization case of discharging again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (5)
1. The utility model provides a high efficiency removes bed calcium base desulphurization unit, a serial communication port, including desulfurization box (1), one side symmetry of desulfurization box (1) is provided with two intake pipe (13) and a negative-pressure air pipe (16), negative-pressure air pipe (16) are connected with through negative-pressure air blower (14) and are in outlet duct (15) of same height with intake pipe (13), the symmetry is provided with two sets of desulfurization subassemblies in desulfurization box (1), the desulfurization subassembly includes one-level desulfurizing tower (21) that equidistant setting, second grade desulfurizing tower (22) and tertiary desulfurizing tower (23), one-level desulfurizing tower (21), the upper portion and the lower part of second grade desulfurizing tower (22) and tertiary desulfurizing tower (23) are connected with respectively and are in outside feeder hopper (24) of desulfurization box (1) and go out hopper (25), all be provided with the valve on feeder hopper (24) and go out hopper (25), one-level desulfurizing tower (21), a plurality of circulation hole (26) have all been seted up on the surface of second grade desulfurizing tower (22) and tertiary desulfurizing tower (23), negative-pressure air pipe (16) are in the center of two one-level desulfurizing tower (21).
2. The device for calcium-based desulfurization with a high efficiency moving bed according to claim 1, characterized in that one side of the three-stage desulfurization tower (23) is provided with an air-equalizing plate (4), and the air-equalizing plate (4) is provided with a plurality of air-equalizing holes (41).
3. A high efficiency moving bed calcium based desulphurisation device according to claim 1 wherein said desulphurisation box (1) is rotatably connected to a sealing door (11), said sealing door (11) being provided with a handle (12).
4. The high-efficiency moving bed calcium-based desulfurization device according to claim 2, wherein the primary desulfurization tower (21), the secondary desulfurization tower (22), the tertiary desulfurization tower (23) and the air-equalizing plate (4) are closely attached to the inner wall of the desulfurization box (1).
5. A high efficiency moving bed calcium-based desulfurization unit according to claim 1, characterized in that a collection box (3) is placed at the lower end of each of the several discharge hoppers (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222196991.8U CN217887499U (en) | 2022-08-19 | 2022-08-19 | High efficiency removes calcium-based desulphurization unit of bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222196991.8U CN217887499U (en) | 2022-08-19 | 2022-08-19 | High efficiency removes calcium-based desulphurization unit of bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217887499U true CN217887499U (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222196991.8U Active CN217887499U (en) | 2022-08-19 | 2022-08-19 | High efficiency removes calcium-based desulphurization unit of bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217887499U (en) |
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2022
- 2022-08-19 CN CN202222196991.8U patent/CN217887499U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high-efficiency moving bed calcium-based desulfurization device Effective date of registration: 20230214 Granted publication date: 20221125 Pledgee: Agricultural Bank of China Limited Laiwu Branch Pledgor: SHANDONG TAIDONG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2023980032623 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20221125 Pledgee: Agricultural Bank of China Limited Laiwu Branch Pledgor: SHANDONG TAIDONG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2023980032623 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high-efficiency moving bed calcium based desulfurization device Granted publication date: 20221125 Pledgee: Agricultural Bank of China Limited Laiwu Branch Pledgor: SHANDONG TAIDONG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2024980005633 |