CN219984369U - Semi-dry flue gas desulfurization device with spiral returning charge function - Google Patents
Semi-dry flue gas desulfurization device with spiral returning charge function Download PDFInfo
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- CN219984369U CN219984369U CN202321405502.3U CN202321405502U CN219984369U CN 219984369 U CN219984369 U CN 219984369U CN 202321405502 U CN202321405502 U CN 202321405502U CN 219984369 U CN219984369 U CN 219984369U
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- Prior art keywords
- pipe
- tank
- material returning
- desulfurization
- flue gas
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 54
- 230000023556 desulfurization Effects 0.000 title claims abstract description 54
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000003546 flue gas Substances 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000000428 dust Substances 0.000 claims abstract description 23
- 238000005507 spraying Methods 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 25
- 238000000227 grinding Methods 0.000 claims description 23
- 239000007921 spray Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000003009 desulfurizing effect Effects 0.000 abstract description 44
- 239000002245 particle Substances 0.000 abstract description 20
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 35
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a semi-dry flue gas desulfurization device with a spiral material returning function, which comprises a desulfurization tank, a dust removal device and a material returning device; the desulfurizing tank comprises a spraying device, an air inlet pipe, an air outlet pipe and a drain pipe; the desulfurizing tank is provided with a liquid inlet pipe, one end of the liquid inlet pipe is communicated with the spraying device, the other end of the liquid inlet pipe is communicated with the liquid storage tank, and the dust removing device is communicated with the exhaust pipe; the material returning device comprises a material returning pipe and a screw rod, one end of the material returning pipe is communicated with the dust removing device, the other end of the material returning pipe is provided with a first motor, and the side wall of the material returning pipe is provided with a discharging pipe. According to the dust removing device disclosed by the utility model, the desulfurizer particles in the flue gas are separated, the spiral rod is driven to rotate by the first motor, and the separated desulfurizer particles are conveyed into the liquid storage tank, so that unreacted desulfurizer can participate in the reaction again, and the waste of the desulfurizer is reduced.
Description
Technical Field
The utility model relates to the technical field of flue gas treatment, in particular to a semi-dry flue gas desulfurization device with a spiral material returning function.
Background
During the combustion of coal, petroleum, natural gas and other fuels, a great amount of flue gas is produced, and the flue gas contains a great amount of sulfides and smoke dust, and if the sulfides are discharged into the atmosphere, acid rain is formed, the buildings are corroded, plant growth is affected, and human health is endangered, so that the flue gas needs to be desulfurized.
At present, flue gas desulfurization technologies are mainly classified into three main categories: the semi-dry desulfurization process refers to a method for realizing desulfurization by fully contacting and reacting a desulfurizing agent absorbing a proper amount of moisture with sulfide in the flue gas, and has the advantages of high flue gas discharge temperature, water resource conservation and the like.
The existing semi-dry flue gas desulfurization device can not fully react with sulfide, so that the newly added desulfurizing agent can be discharged from an outlet at the top of the desulfurization tower along with flue gas, thereby causing waste of the desulfurizing agent. Therefore, there is an urgent need for a semi-dry flue gas desulfurization apparatus having a spiral returning function.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a semi-dry flue gas desulfurization device with a spiral material returning function.
The technical scheme of the utility model is as follows: the semi-dry flue gas desulfurization device with the spiral material returning function comprises a desulfurization tank, a dust removing device arranged on the outer top surface of the desulfurization tank and a material returning device;
the desulfurizing tank comprises a spraying device arranged in the desulfurizing tank, an air inlet pipe arranged on the side wall of the desulfurizing tank, an air outlet pipe arranged on the top surface of the desulfurizing tank and a drain pipe arranged at the lower end of the side wall of the desulfurizing tank;
the side wall of the desulfurization tank is provided with a liquid inlet pipe, one end of the liquid inlet pipe is communicated with the spraying device, the other end of the liquid inlet pipe is communicated with a liquid storage tank arranged on the outer side wall of the desulfurization tank, an air inlet of the dust removing device is communicated with the exhaust pipe, and the side wall of the liquid storage tank is provided with a liquid supplementing pipe;
the material returning device comprises a material returning pipe transversely arranged above the liquid storage tank and a screw rod transversely arranged in the material returning pipe, one end of the material returning pipe is communicated with an ash outlet of the dust removing device, a first motor for driving the screw rod to rotate is arranged at the other end of the material returning pipe, and a discharging pipe for communicating with the top surface of the liquid storage tank is arranged on the side wall of the material returning pipe.
Description: the spraying device can spray the desulfurizing agent, after the flue gas contacts with the desulfurizing agent, sulfide in the flue gas reacts with the desulfurizing agent, the desulfurized flue gas is discharged through the exhaust pipe, the desulfurizing agent particles in the flue gas can be separated by the dust removing device, the separated desulfurizing agent particles are conveyed into the liquid storage tank through the first motor driving screw rod to rotate, the unreacted desulfurizing agent can participate in the reaction again, and the waste of the desulfurizing agent is reduced.
Further, a support is arranged on the outer bottom surface of the desulfurization tank, and a plurality of supporting legs are arranged on the bottom surface of the support.
Description: the support can improve the stability of the desulfurization tank, and has lower manufacturing cost and good reliability.
Further, spray set includes being responsible for, sets up on being responsible for the lateral wall and with be responsible for a plurality of branch pipes of intercommunication and the motor of setting in the outer bottom surface of digester, be equipped with a plurality of shower nozzles rather than inside intercommunication on the branch pipe, the output shaft of motor pass the digester bottom surface and with be responsible for bottom surface fixed connection, feed liquor pipe and be responsible for top surface rotation sealing connection and intercommunication.
Description: the second motor can drive the main pipe to rotate, so that the main pipe can drive the branch pipe to rotate to spray the desulfurizing agent, the spraying range of the desulfurizing agent is enlarged, the flue gas can be uniformly contacted with the desulfurizing agent, and the desulfurizing effect is improved.
Further, the output shaft of the motor is sleeved with fan blades.
Description: the fan blade rotates to blow the flue gas in the desulfurization tank to move upwards, so that the flue gas is prevented from being unable to be discharged in the desulfurization tank.
Further, a first bevel gear is fixedly sleeved on the screw rod at the corresponding position of the blanking pipe, a transmission shaft is vertically arranged in the blanking pipe, one end of the transmission shaft penetrates through a connecting plate arranged in the blanking pipe and is sleeved with a second bevel gear used for meshed transmission with the first bevel gear, and a filter screen is arranged at the other end of the transmission shaft and penetrates through the blanking pipe;
the transmission shaft above the filter screen is sleeved with a grinding head, and the inner wall of the blanking pipe at the position corresponding to the grinding head is provided with a grinding sleeve matched with the grinding head for grinding.
Description: when the screw rod rotates, the transmission shaft is driven to rotate through the first bevel gear and the second bevel gear, and the transmission shaft can drive the grinding head to grind the desulfurizing agent particles entering the blanking pipe, so that the desulfurizing agent particles are finer, and the problem that the larger desulfurizing agent particles enter the desulfurizing agent to block the spraying device is avoided.
Further, the other end of the transmission shaft extends into the liquid storage tank and is sleeved with stirring blades.
Description: the stirring blade can stir the desulfurizing agent in the liquid storage tank to assist in dispersing desulfurizing agent particles, and prevent the desulfurizing agent particles from precipitating at the bottom of the liquid storage tank.
The beneficial effects of the utility model are as follows:
(1) The spraying device can spray the desulfurizing agent to desulfurize the flue gas, the dust removing device can separate the desulfurizing agent particles in the flue gas and drive the screw rod to rotate through the first motor, and the separated desulfurizing agent particles are conveyed into the liquid storage tank, so that the unreacted desulfurizing agent can participate in the reaction again, and the waste of the desulfurizing agent is reduced.
(2) The second motor can drive the main pipe to rotate, so that the main pipe can drive the branch pipe to rotate to spray the desulfurizing agent, the spraying range of the desulfurizing agent is enlarged, the flue gas can be uniformly contacted with the desulfurizing agent, and the desulfurizing effect is improved.
(3) When the screw rod rotates, the transmission shaft can be driven to rotate by the first bevel gear and the second bevel gear, and the transmission shaft can drive the grinding head to grind the desulfurizer particles entering the blanking pipe, so that the desulfurizer particles are finer, and larger desulfurizer particles are prevented from entering the desulfurizer to block the spraying device.
Drawings
FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present utility model;
FIG. 2 is a cross-sectional view of embodiment 1 of the present utility model;
FIG. 3 is an enlarged view at A of FIG. 2;
FIG. 4 is a schematic view of a spray device according to embodiment 1 of the present utility model;
FIG. 5 is a cross-sectional view of the return device of example 2 of the present utility model;
FIG. 6 is a schematic view showing the internal structure of a return pipe according to embodiment 2 of the present utility model;
FIG. 7 is a schematic view of a polishing head according to embodiment 2 of the present utility model;
the device comprises a 1-desulfurizing tank, a 11-spraying device, a 111-main pipe, a 112-branch pipe, a 12-drain pipe, a 13-bracket, a 14-second motor, a 15-air inlet pipe, a 16-fan blade, a 17-liquid inlet pipe, a 18-liquid storage tank, a 181-liquid supplementing pipe, a 19-air outlet pipe, a 2-dust removing device, a 3-material returning device, a 31-material returning pipe, a 32-screw rod, a 321-first bevel gear, a 33-first motor, a 34-blanking pipe, a 35-transmission shaft, a 351-second bevel gear, a 36-grinding head, a 37-grinding sleeve, a 38-filter screen and 39-stirring blades.
Detailed Description
The utility model will be described in further detail with reference to the following embodiments to better embody the advantages of the utility model.
Example 1
As shown in FIG. 1, the semi-dry flue gas desulfurization device with a spiral material returning function comprises a desulfurization tank 1, a dust removing device 2 and a material returning device 3, wherein the dust removing device 2 is arranged on the outer top surface of the desulfurization tank 1, and a commercially available cyclone dust remover is adopted for the dust removing device 2;
as shown in fig. 2, the desulfurization tank 1 comprises a spraying device 11 arranged in the desulfurization tank 1, an air inlet pipe 15 arranged on the side wall of the desulfurization tank 1, an air outlet pipe 19 arranged on the top surface of the desulfurization tank 1 and a water outlet pipe 12 arranged at the lower end of the side wall of the desulfurization tank 1;
the side wall of the desulfurization tank 1 is provided with a liquid inlet pipe 17, the left end of the liquid inlet pipe 17 is communicated with the spraying device 11, the right end of the liquid inlet pipe 17 is communicated with a liquid storage tank 18 arranged on the outer side wall of the desulfurization tank 1, the air inlet of the dust removal device 2 is communicated with an exhaust pipe 19, and the side wall of the liquid storage tank 18 is provided with a liquid supplementing pipe 181;
as shown in fig. 3, the material returning device 3 includes a material returning pipe 31 transversely disposed above the liquid storage tank 18 and a screw rod 32 transversely disposed in the material returning pipe 31, the left end of the material returning pipe 31 is communicated with the ash outlet of the dust removing device 2, the right end of the material returning pipe 31 is provided with a first motor 33 for driving the screw rod 32 to rotate, the first motor 33 adopts a commercial power machine, and the side wall of the material returning pipe 31 is provided with a blanking pipe 34 for communicating with the top surface of the liquid storage tank 18;
the bottom surface of the desulfurization tank 1 is provided with a bracket 13, and the bottom surface of the bracket 13 is provided with four supporting legs; as shown in fig. 4, the spraying device 11 includes a main pipe 111, four branch pipes 112 disposed on a side wall of the main pipe 111 and communicated with the main pipe 111, and a second motor 14 disposed on an outer bottom surface of the desulfurization tank 1, wherein the second motor 14 is a commercially available motor, four spray heads communicated with the inside of the branch pipes 112 are disposed on the branch pipes 112, an output shaft of the second motor 14 passes through the bottom surface of the desulfurization tank 1 and is fixedly connected with the bottom surface of the main pipe 111, and the liquid inlet pipe 17 is rotationally and hermetically connected and communicated with the top surface of the main pipe 111 through an annular groove disposed on a side wall of the liquid inlet pipe; the output shaft of the motor 14 is sleeved with a fan blade 16.
The working principle of the desulfurization device is as follows: the flue gas enters the desulfurization tank 1 through the air inlet pipe 15, the second motor 14 is started, the second motor 14 drives the fan blades 16 and the spraying device 11 to rotate, the flue gas moves upwards under the action of the fan blades 16, the desulfurizing agent in the liquid storage tank 18 is sprayed through the rotation of the spraying device 11, and the desulfurizing agent adopts Ca (OH) 2 The slurry reacts after the sulfide in the flue gas contacts with the desulfurizing agent, the desulfurized flue gas continues to move upwards and enters the dust removing device 2 through the exhaust pipe 19, the dust removing device 2 separates residual desulfurizing agent particles in the flue gas, the first motor 33 is started, the first motor 33 drives the screw rod 32 to rotate so as to convey the desulfurizing agent particles to the blanking pipe 34, and the desulfurizing agent particles in the blanking pipe 34 fall into the desulfurizing agent in the liquid storage tank 18 under the action of gravity.
Example 2
As shown in fig. 5 and 6, a first bevel gear 321 is fixedly sleeved on the screw rod 32 at a position corresponding to the blanking pipe 34, a transmission shaft 35 is vertically arranged in the blanking pipe 34, the upper end of the transmission shaft 35 passes through a connecting plate arranged in the blanking pipe 34 and is sleeved with a second bevel gear 351 for meshing transmission with the first bevel gear 321, and a filter screen 38 is arranged at the lower end of the transmission shaft 35 and passes through the blanking pipe 34;
as shown in fig. 7, a grinding head 36 is sleeved on a transmission shaft 35 above the filter screen 38, and a grinding sleeve 37 for grinding in cooperation with the grinding head 36 is arranged on the inner wall of the blanking pipe 34 at the position corresponding to the grinding head 36; the lower end of the transmission shaft 35 extends into the liquid storage tank 18 and is sleeved with stirring blades 39.
The working principle of the structure is as follows: when the screw rod 32 rotates, the transmission shaft 35 is driven to rotate by the first bevel gear 321 and the second bevel gear 351, the transmission shaft 35 can drive the grinding head 36 to rotate, the desulfurizer particles in the blanking pipe 34 can enter gaps between the grinding head 36 and the grinding sleeve 37 under the action of gravity, the desulfurizer particles in the gaps are ground under the action of rotation of the grinding head 36, the ground desulfurizer enters the liquid storage tank 18 after passing through the filter screen 38, and the transmission shaft 35 drives the stirring blade 39 to rotate so as to stir the desulfurizer in the liquid storage tank 18, so that the desulfurizer particles are dispersed.
Claims (6)
1. The semi-dry flue gas desulfurization device with the spiral material returning function is characterized by comprising a desulfurization tank (1), a dust removing device (2) and a material returning device (3), wherein the dust removing device (2) is arranged on the outer top surface of the desulfurization tank (1);
the desulfurization tank (1) comprises a spraying device (11) arranged in the desulfurization tank (1), an air inlet pipe (15) arranged on the side wall of the desulfurization tank (1), an air outlet pipe (19) arranged on the top surface of the desulfurization tank (1) and a drain pipe (12) arranged at the lower end of the side wall of the desulfurization tank (1);
a liquid inlet pipe (17) is arranged on the side wall of the desulfurization tank (1), one end of the liquid inlet pipe (17) is communicated with the spraying device (11), the other end of the liquid inlet pipe (17) is communicated with a liquid storage tank (18) arranged on the outer side wall of the desulfurization tank (1), an air inlet of the dust removing device (2) is communicated with the exhaust pipe (19), and a liquid supplementing pipe (181) is arranged on the side wall of the liquid storage tank (18);
the material returning device (3) comprises a material returning pipe (31) transversely arranged above the liquid storage tank (18) and a spiral rod (32) transversely arranged in the material returning pipe (31), one end of the material returning pipe (31) is communicated with an ash outlet of the dust removing device (2), a first motor (33) for driving the spiral rod (32) to rotate is arranged at the other end of the material returning pipe (31), and a discharging pipe (34) for communicating with the top surface of the liquid storage tank (18) is arranged on the side wall of the material returning pipe (31).
2. The semi-dry flue gas desulfurization device with the spiral returning charge function according to claim 1, wherein a support (13) is arranged on the outer bottom surface of the desulfurization tank (1), and a plurality of supporting legs are arranged on the bottom surface of the support (13).
3. The semi-dry flue gas desulfurization device with the spiral returning charge function according to claim 1, wherein the spraying device (11) comprises a main pipe (111), a plurality of branch pipes (112) which are arranged on the side wall of the main pipe (111) and are communicated with the main pipe (111), and a second motor (14) which is arranged on the outer bottom surface of the desulfurization tank (1), a plurality of spray heads which are communicated with the inside of the branch pipes are arranged on the branch pipes (112), an output shaft of the second motor (14) penetrates through the bottom surface of the desulfurization tank (1) and is fixedly connected with the bottom surface of the main pipe (111), and the liquid inlet pipe (17) is in rotary sealing connection and communication with the top surface of the main pipe (111).
4. A semi-dry flue gas desulfurization device with spiral returning charge function according to claim 3, wherein the output shaft of the motor (14) is sleeved with fan blades (16).
5. The semi-dry flue gas desulfurization device with the spiral returning charge function according to claim 1, wherein a first bevel gear (321) is fixedly sleeved on the spiral rod (32) at the corresponding position of the discharging pipe (34), a transmission shaft (35) is vertically arranged in the discharging pipe (34), one end of the transmission shaft (35) penetrates through a connecting plate arranged in the discharging pipe (34) and is sleeved with a second bevel gear (351) for meshing transmission with the first bevel gear (321), and a filter screen (38) is arranged at the other end of the transmission shaft (35) penetrating through the discharging pipe (34);
a grinding head (36) is sleeved on a transmission shaft (35) above the filter screen (38), and a grinding sleeve (37) used for grinding in cooperation with the grinding head (36) is arranged on the inner wall of the blanking pipe (34) at the position corresponding to the grinding head (36).
6. Semi-dry flue gas desulfurization device with spiral returning charge function according to claim 5, characterized in that the other end of the transmission shaft (35) extends into the liquid storage tank (18) and is sleeved with stirring blades (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321405502.3U CN219984369U (en) | 2023-06-05 | 2023-06-05 | Semi-dry flue gas desulfurization device with spiral returning charge function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321405502.3U CN219984369U (en) | 2023-06-05 | 2023-06-05 | Semi-dry flue gas desulfurization device with spiral returning charge function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219984369U true CN219984369U (en) | 2023-11-10 |
Family
ID=88617205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321405502.3U Active CN219984369U (en) | 2023-06-05 | 2023-06-05 | Semi-dry flue gas desulfurization device with spiral returning charge function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219984369U (en) |
-
2023
- 2023-06-05 CN CN202321405502.3U patent/CN219984369U/en active Active
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