CN211098297U - Desulfurization and denitrification tower capable of preventing waste gas from flowing back - Google Patents
Desulfurization and denitrification tower capable of preventing waste gas from flowing back Download PDFInfo
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- CN211098297U CN211098297U CN201921558019.2U CN201921558019U CN211098297U CN 211098297 U CN211098297 U CN 211098297U CN 201921558019 U CN201921558019 U CN 201921558019U CN 211098297 U CN211098297 U CN 211098297U
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- exhaust gas
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- desulfurization
- dispersion
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Abstract
The utility model provides a prevent SOx/NOx control tower of exhaust gas reflux, the novel nipple rectifier comprises a cylindrical shel, barrel top fixed mounting upper cover, barrel bottom fixed mounting low head, the air inlet has been seted up to barrel lower extreme left side outer wall, fixed mounting check valve in the air inlet, the inside fixed mounting smoke-separating plate of barrel lower extreme, smoke-separating plate is connected with the air inlet, the overflow mouth has been seted up to barrel lower extreme right side outer wall, smoke-separating plate top is equipped with first dispersion board, first dispersion board top is equipped with first spray set, first spray set top is equipped with the second dispersion board, second dispersion board top is equipped with the second spray set, second spray set top is equipped with the defroster. The utility model discloses SOx/NOx control tower simple structure can synchronous SOx/NOx control, has solved the inhomogeneous problem of current SOx/NOx control tower exhaust gas distribution through smoke distribution board, first dispersion board and second dispersion board, is equipped with the check valve in the air inlet, can prevent the exhaust gas reflux at SOx/NOx control tower non-operating period, causes secondary pollution.
Description
Technical Field
The utility model relates to a SOx/NOx control technical field, in particular to prevent SOx/NOx control tower of exhaust gas reflux.
Background
SO2、NOXIs other pollutants with great influence in atmospheric pollution, and has great harm to human bodies, environment and ecological systems. With the increasing strictness of environmental requirements, SO2、NOXThe issue of emissions is of increasing concern. SO (SO)2、NOXMainly comes from the burning process of fossil fuels such as coal, petroleum and the like, and the flue gas emission of the roasting and smelting processes of ores. In the traditional technology, SO in the discharged flue gas2、NOXThe purification technology is usually to carry out desulfurization and denitration separately, which causes the defects of complexity, bulkiness, large initial investment, high operation cost and the like of the exhaust flue gas purification system, and seriously restricts the practical implementation of the desulfurization and denitration of the exhaust flue gas, so that the current development of a new technology and new equipment which are cheap and efficient and can simultaneously carry out the desulfurization and the denitration is the general trend of the research of the domestic and overseas flue gas purification technologies.
The existing synchronous desulfurization and denitrification methods at home and abroad are divided into a dry method and a wet method. The dry method has higher requirements on the quality of the absorbent, and has stricter requirements on automatic control in operation; the wet process has the advantages of high desulfurization and denitrification efficiency, large unit capacity, good reliability, stable operation, byproduct recovery and the like. In the wet process, the synchronous desulfurization and denitrification tower is a core component of the whole process, and the common synchronous desulfurization and denitrification tower mainly comprises a spray tower, a liquid column tower, a bubble tower, a double-loop tower and the like. Among these tower types, the spray tower has the advantages of simple structure, small resistance and the like, and is widely applied.
At present, most spray towers adopt an airflow uniform distribution mode that an inlet pipeline is downwards inclined at a certain angle for air inlet, airflow distribution is carried out by virtue of the self expansion, diffusion and inertia effects of airflow, but the airflow uniform distribution effect is limited, the airflow distribution in the towers is still uneven, the local wind speed on one side of the tower wall opposite to an inlet is overlarge, the density of slurry sprayed in the area is small, and SO in partial airflow is caused2、NOXThe removal efficiency is low, and the demister can not well play a role due to overlarge local wind speed, so that the phenomenon of serious liquid stagnation at a flue gas outlet is caused,both polluting the surrounding environment and wasting absorbent. The existing denitration and desulfurization tower inlet pipeline does not have the function of preventing flue gas from flowing back, when the denitration and desulfurization tower stops working, the waste gas flows back easily, harmful gas in the denitration and desulfurization tower is discharged from the inlet pipeline, and secondary pollution is formed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be not enough to prior art, the utility model provides a prevent SOx/NOx control tower of exhaust gas reflux has solved the problem that current SOx/NOx control tower exhaust gas distribution is inhomogeneous, waste gas easily takes place the backward flow.
The utility model provides a prevent SOx/NOx control tower of exhaust gas reflux, the novel nipple rectifier comprises a cylindrical shel, barrel top fixed mounting upper cover, barrel bottom fixed mounting low head, the air inlet has been seted up to barrel lower extreme left side outer wall, fixed mounting check valve in the air inlet, the inside fixed mounting smoke-separating plate of barrel lower extreme, smoke-separating plate is connected with the air inlet, the overflow mouth has been seted up to barrel lower extreme right side outer wall, smoke-separating plate top is equipped with first dispersion board, first dispersion board top is equipped with first spray set, first spray set top is equipped with the second dispersion board, second dispersion board top is equipped with second spray set, second spray set top is equipped with the defroster, second spray set, the second dispersion board, first spray set and the equal fixed mounting of first dispersion board are at the barrel inner wall, the manhole has been seted up to barrel upper end left side outer.
Preferably, the check valve includes the valve body, and the valve body left end is the inlet end, the inside admission line that is equipped with of valve body, the inside right side fixed mounting spring holder of valve body, spring holder left side fixed mounting compression spring, the fixed mounting shutoff piece of compression spring left end, the shutoff piece is uncovered agreeing with the inlet end of valve body.
Preferably, the inside fan-shaped flue gas pipeline that is equipped with the symmetry and sets up of branch cigarette board, and a plurality of branch cigarette holes have been seted up to flue gas pipeline top.
Preferably, the first dispersion plate is provided with a plurality of dispersion holes arranged in a rectangular array, the dispersion holes form an included angle of 60 degrees with the surface of the first dispersion plate, an included angle of 60 degrees is formed between two adjacent dispersion holes, and the structure of the second dispersion plate is the same as that of the first dispersion plate.
Preferably, first spray set includes the feed liquor pipe, and the feed liquor pipe is L type pipes, and barrel right side outer wall is run through to feed liquor pipe one end, and the feed liquor pipe welds with the barrel outer wall, and feed liquor pipe other end fixed connection flow distribution plate, a plurality of shower nozzles of flow distribution plate downside fixed mounting, second spray set structure are the same with first spray set.
Preferably, the middle of the top of the upper sealing head is provided with an air outlet, and the right side of the top of the upper sealing head is provided with an air release valve.
Preferably, a liquid outlet is formed in the middle of the bottom of the lower end socket, and supporting legs are fixedly mounted on two sides of the bottom of the lower end socket.
Compared with the prior art, the utility model has the advantages that:
(1) the utility model discloses be equipped with the check valve in the air inlet, realize the air inlet and the shutoff of valve body through shutoff piece and compression spring, simple structure, degree of automation is high, can prevent that waste gas from flowing back during desulfurization denitration tower non-operation, causes secondary pollution;
(2) the utility model discloses a divide the gas dispersion of cigarette board to air inlet department to discharge evenly in the flue gas pipeline, the dispersion of the first dispersion board of rethread and second dispersion board for gas disperses evenly in the barrel, has improved and has sprayed absorptive effect and defroster defogging effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the check valve of the present invention;
fig. 3 is a schematic structural view of the first spraying device of the present invention;
fig. 4 is a schematic structural view of the first dispersion plate of the present invention.
In the figure:
1-cylinder, 2-upper head, 3-lower head, 4-air inlet, 5-check valve, 6-smoke separating plate, 7-overflow port, 8-first dispersing plate, 9-first spraying device, 10-second dispersing plate, 11-second spraying device, 12-demister, 13-manhole, 14-air outlet, 15-air release valve, 16-liquid outlet, 17-supporting leg, 501-valve body, 502-spring seat, 503-compression spring, 504-blocking sheet, 601-flue gas pipeline, 602-smoke separating hole, 801-dispersing hole, 901-liquid inlet pipe, 902-flow separating plate and 903 spray head.
Detailed Description
In order to better enable those skilled in the art to understand the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 4, a desulfurization and denitrification tower for preventing backflow of exhaust gas is characterized in that: comprises a cylinder body 1, an upper seal head 2 is fixedly arranged at the top end of the cylinder body 1, a lower seal head 3 is fixedly arranged at the bottom end of the cylinder body 1, an air inlet 4 is arranged on the left outer wall of the lower end of the cylinder body 1, a check valve 5 is fixedly arranged in the air inlet 4, a smoke distribution plate 6 is fixedly arranged in the lower end of the cylinder body 1, the smoke distribution plate 6 is connected with the air inlet 4, an overflow port 7 is arranged on the right outer wall of the lower end of the cylinder body 1, a first dispersion plate 8 is arranged above the smoke distribution plate 6, a first spray device 9 is arranged above the first dispersion plate 8, a second dispersion plate 10 is arranged above the first spray device 9, a second spray device 11 is arranged above the second dispersion plate 10, a demister 12, a demister, the second dispersion plate 10, the first spraying device 9 and the first dispersion plate 8 are fixedly arranged on the inner wall of the cylinder body 1, and a manhole 13 is formed in the outer wall of the left side of the upper end of the cylinder body 1.
The inside fan-shaped flue gas pipeline 601 that is equipped with the symmetry and sets up of branch cigarette board 6, and a plurality of branch cigarette holes 602 have been seted up to flue gas pipeline 601 top.
The first dispersion plate 8 is provided with a plurality of dispersion holes 801 arranged in a rectangular array, the dispersion holes 801 form an included angle of 60 degrees with the surface of the first dispersion plate 8, an included angle of 60 degrees is formed between two adjacent dispersion holes 801, and the structure of the second dispersion plate 10 is the same as that of the first dispersion plate 8.
The first spraying device 9 comprises a liquid inlet pipe 901, the liquid inlet pipe 901 is an L type pipe, one end of the liquid inlet pipe 901 penetrates through the outer wall of the right side of the cylinder body 1, the liquid inlet pipe 901 is welded with the outer wall of the cylinder body 1, the other end of the liquid inlet pipe 901 is fixedly connected with a flow distribution plate 902, a plurality of spray heads 903 are fixedly installed on the lower side of the flow distribution plate 902, and the structure of the second spraying device 11 is the same as that of the first spraying device.
An air outlet 14 is formed in the middle of the top of the upper sealing head 2, and an air release valve 15 is arranged on the right side of the top of the upper sealing head 2.
A liquid outlet 16 is arranged in the middle of the bottom of the lower end enclosure 3, and supporting legs 17 are fixedly arranged on two sides of the bottom of the lower end enclosure 3.
The working principle is as follows:
Inside fixed mounting of 1 lower extreme of barrel divides cigarette board 6, divide the inside fan-shaped flue gas pipeline 601 that is equipped with the symmetry and sets up of cigarette board 6, a plurality of branch cigarette holes 602 have been seted up to flue gas pipeline 601 top, divide 6 tops of cigarette board to be equipped with first dispersion board 8, first spray set 9 tops are equipped with second dispersion board 10, through dividing cigarette board 6, the layer upon layer dispersion of first dispersion board 8 and second dispersion board 10, can make the air current homodisperse, the absorptive effect of spraying and defroster defogging effect have been promoted.
When the device is used for gas desulfurization and denitration treatment, gas to be treated is introduced from the gas inlet 14, the gas enters the smoke distribution plate 6 from the check valve 5 after jacking the blocking piece 504, the gas is discharged from the smoke distribution hole 602 after being distributed by the smoke pipeline 601 in the smoke distribution plate 6, the gas is further dispersed by the first dispersion plate 8 and then reacts with the absorption liquid sprayed by the first spraying device 9 for desulfurization and denitration, then the gas continuously passes through the second dispersion plate 10 and reacts with the absorption liquid sprayed by the second spraying device 11 after being fully dispersed, and after the absorption of the absorption liquid for twice, SO in the gas is absorbed by the absorption liquid2And NOXIs fully absorbed, moisture and absorption liquid in the gas are removed by the demister 12 and then are discharged through the gas outlet 14, and the absorption liquid is gathered at the bottom of the cylinder 1 and is discharged through the liquid outlet 16 at the bottom of the lower end enclosure 3.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the specific implementations of the invention. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a prevent SOx/NOx control tower of exhaust gas reflux which characterized in that: comprises a cylinder body (1), wherein an upper seal head (2) is fixedly arranged at the top end of the cylinder body (1), a lower seal head (3) is fixedly arranged at the bottom end of the cylinder body (1), an air inlet (4) is formed in the outer wall of the left side of the lower end of the cylinder body (1), a check valve (5) is fixedly arranged in the air inlet (4), a smoke distribution plate (6) is fixedly arranged in the lower end of the cylinder body (1), the smoke distribution plate (6) is connected with the air inlet (4), an overflow port (7) is formed in the outer wall of the right side of the lower end of the cylinder body (1), a first dispersion plate (8) is arranged above the smoke distribution plate (6), a first spraying device (9) is arranged above the first dispersion plate (8), a second dispersion plate (10) is arranged above the first spraying device (9), a second spraying device (11) is arranged above the second dispersion plate (10), demister (12), second spray set (11), second dispersion board (10), first spray set (9) and first dispersion board (8) equal fixed mounting have been seted up manhole (13) at barrel (1) inner wall, barrel (1) upper end left side outer wall.
2. The desulfurization and denitrification tower for preventing backflow of exhaust gas according to claim 1, wherein: check valve (5) include valve body (501), valve body (501) left end is the inlet end, and valve body (501) inside is equipped with the admission line, inside right side fixed mounting spring holder (502) of valve body (501), spring holder (502) left side fixed mounting compression spring (503), compression spring (503) left end fixed mounting shutoff piece (504), shutoff piece (504) agree with the inlet end of valve body (501) is uncovered.
3. The desulfurization and denitrification tower for preventing backflow of exhaust gas according to claim 1, wherein: the fan-shaped flue gas pipeline (601) that divide cigarette board (6) inside to be equipped with the symmetry and set up, a plurality of branch cigarette holes (602) have been seted up to flue gas pipeline (601) top.
4. The desulfurization and denitrification tower for preventing backflow of exhaust gas according to claim 1, wherein: a plurality of dispersing holes (801) which are arranged in a rectangular array are formed in the first dispersing plate (8), the dispersing holes (801) and the surface of the first dispersing plate (8) form an included angle of 60 degrees, an included angle of 60 degrees is formed between every two adjacent dispersing holes (801), and the structure of the second dispersing plate (10) is the same as that of the first dispersing plate (8).
5. The desulfurization and denitrification tower for preventing exhaust gas from flowing back according to claim 1, wherein the first spraying device (9) comprises a liquid inlet pipe (901), the liquid inlet pipe (901) is an L-shaped pipe, one end of the liquid inlet pipe (901) penetrates through the outer wall of the right side of the cylinder (1), the liquid inlet pipe (901) is welded with the outer wall of the cylinder (1), the other end of the liquid inlet pipe (901) is fixedly connected with a flow distribution plate (902), a plurality of spray heads (903) are fixedly mounted on the lower side of the flow distribution plate (902), and the second spraying device (11) has the same structure as the first spraying device (9).
6. The desulfurization and denitrification tower for preventing backflow of exhaust gas according to claim 1, wherein: an air outlet (14) is formed in the middle of the top of the upper sealing head (2), and an emptying valve (15) is arranged on the right side of the top of the upper sealing head (2).
7. The desulfurization and denitrification tower for preventing backflow of exhaust gas according to claim 1, wherein: a liquid outlet (16) is formed in the middle of the bottom of the lower end enclosure (3), and supporting legs (17) are fixedly mounted on two sides of the bottom of the lower end enclosure (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921558019.2U CN211098297U (en) | 2019-09-19 | 2019-09-19 | Desulfurization and denitrification tower capable of preventing waste gas from flowing back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921558019.2U CN211098297U (en) | 2019-09-19 | 2019-09-19 | Desulfurization and denitrification tower capable of preventing waste gas from flowing back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211098297U true CN211098297U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921558019.2U Expired - Fee Related CN211098297U (en) | 2019-09-19 | 2019-09-19 | Desulfurization and denitrification tower capable of preventing waste gas from flowing back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211098297U (en) |
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2019
- 2019-09-19 CN CN201921558019.2U patent/CN211098297U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20210919 |
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| CF01 | Termination of patent right due to non-payment of annual fee |