CN214233442U

CN214233442U - Sodium chlorite solution low temperature deNOx systems

Info

Publication number: CN214233442U
Application number: CN202023122049.4U
Authority: CN
Inventors: 赵艳莲
Original assignee: Jiangxi Shengyuan Chiemical Co ltd
Current assignee: Jiangxi Shengyuan Chiemical Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-09-21
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a sodium chlorite solution low temperature deNOx systems, including the spray room, the bottom of spray room is provided with sodium chlorite solution storage box, and one side of spray room is provided with the filter chamber, and the bottom inner wall fixedly connected with spray assembly of spray room, venthole and waste liquid export have been seted up to one side of spray room, spray assembly is including carousel and shower, and shower fixed connection is in the top of carousel, the outer wall fixedly connected with branch pipe of shower, and the quantity of branch pipe is four, the one end fixedly connected with shower nozzle of branch pipe, the solid fixed ring of one end outer wall fixedly connected with of shower nozzle. The utility model discloses a set up spray set, the carousel drives the shower at its top and rotates, and shower outer wall fixed connection's branch pipe is followed and is rotated, sprays to each direction in the spray chamber, and increase spray range, spun sodium chlorite solution impact the capstan, makes the capstan rotate, breaks away sodium chlorite solution into the drop of water, makes flue gas and sodium chlorite solution fully contact.

Description

Sodium chlorite solution low temperature deNOx systems

Technical Field

The utility model relates to a waste gas denitration technical field especially relates to a sodium chlorite solution low temperature deNOx systems.

Background

At the present stage, the flue gas denitration generally adopts SNCR or SCR technology, SCR is selective catalytic reduction technology, NOx and reducing agent containing amino are subjected to reduction removal reaction under the action of a catalyst to generate nitrogen and water; the method for preparing the sodium chlorite solution by using the sodium chlorite powder for oxidation denitration has low safety, and the sodium chlorite powder is decomposed at 175 ℃ to generate heat and is in contact with combustible substances to generate violent explosion.

Through the retrieval, chinese patent application No. 201921744656.9's patent discloses a sodium chlorite solution low temperature deNOx systems, including the alkali absorption tower, open alkali absorption tower one side has the flue gas to advance the pipe, the flue gas advances to manage and installs atomizing spray gun, atomizing spray gun's inlet end is connected with compressed air source, atomizing spray gun's inlet end is connected with the reaction liquid system, the alkali absorption tower upper end is provided with the flue gas exit tube, inside and being located of alkali absorption tower the flue gas advances to manage the top and is fixed with the flow equalizing plate, inside just of alkali absorption tower the flow equalizing plate top is provided with circulation spray system, inside just of alkali absorption tower circulation spray system top is provided with alkali lye spray system. The above patents suffer from the following disadvantages: the device carries out the denitration through alkali absorption tower, but alkali absorption tower removes nitre efficiency lower, and waste gas is purified to can not be fine, is unfavorable for environmental protection.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a low-temperature denitration system for a sodium chlorite solution.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a sodium chlorite solution low temperature deNOx systems, includes the spray room, the bottom of spray room is provided with sodium chlorite solution storage box, and one side of spray room is provided with the filter chamber, and the bottom inner wall fixedly connected with spray assembly of spray room, venthole and waste liquid outlet have been seted up to one side of spray room, spray assembly is including carousel and shower, and shower fixed connection is in the top of carousel, the outer wall fixedly connected with branch pipe of shower, and the quantity of branch pipe is four, the one end fixedly connected with shower nozzle of branch pipe, the solid fixed ring of one end outer wall fixedly connected with of shower nozzle, solid fixed ring's one end fixedly connected with spliced pole, the one end fixedly connected with capstan of spliced pole.

As a further aspect of the present invention: and the inner wall of the bottom of the sodium chlorite solution storage box is fixedly connected with a stirring fan, and the bottom of the stirring fan is fixedly connected with a motor III.

As a further aspect of the present invention: one end of the spray chamber is provided with a water tank, a water pump is arranged in the water tank, one end of the water tank is fixedly connected with a cooling pipe, and the outer wall of the cooling pipe is fixedly connected with radiating fins.

As a further aspect of the present invention: the filter chamber sets up in the bottom of water tank, and the inner wall fixedly connected with flue gas baffle of filter chamber, the filtration mouth has been seted up to the one end of flue gas baffle, and the inner wall of filtration mouth is provided with the filter screen, and the both ends of filter screen are rotated and are connected with the cylinder, and the one end fixedly connected with motor of cylinder is one, and a motor fixed connection is in the top of flue gas baffle.

As a further aspect of the present invention: the top of flue gas baffle is provided with electronic slide rail, and the top sliding connection of electronic slide rail has the slider, and the top fixedly connected with motor two of slider, the one end fixedly connected with brush wheel of motor two, brush wheel and filter screen contact.

As a further aspect of the present invention: the one end fixedly connected with fixed plate of flue gas baffle, the dirty groove of collection has been seted up to the one end of fixed plate, and the one end fixedly connected with swash plate in the dirty groove of collection, one side fixed connection in one side outer wall of flue gas baffle of swash plate.

As a further aspect of the present invention: an air inlet is formed in the outer wall of one side of the filtering chamber, and an air inlet is formed in one side of the connecting position of the filtering chamber and the spraying chamber.

Compared with the prior art, the utility model provides a sodium chlorite solution low temperature deNOx systems possesses following beneficial effect:

1. this be used for a sodium chlorite solution low temperature deNOx systems, through setting up spray assembly, the carousel drives the shower at its top and rotates, and shower outer wall fixed connection's branch pipe is followed and is rotated, sprays to each direction in the spray chamber, and increase spray range, spun sodium chlorite solution impact capstan simultaneously makes the capstan rotate, breaks away into the sodium chlorite solution and becomes the drop of water, makes flue gas and sodium chlorite solution fully contact, effective absorption nitrogen oxide.

2. This be used for a sodium chlorite solution low temperature deNOx systems, through setting up the cooling tube, the flue gas filters the back through the filter screen, and with the cooling tube contact, the cooling tube cools down the flue gas, guarantees that the temperature control of flue gas is in reasonable within range, prevents that the high temperature of flue gas from decomposing sodium chlorite solution, influences the flue gas and takes off the round pin effect, and the outer wall fixedly connected with fin of cooling tube can increase the heat transfer area of flue gas simultaneously, improves the effect of cooling.

3. This be used for a sodium chlorite solution low temperature deNOx systems, through setting up the filter screen, motor one drives the filter screen and rotates, filters the flue gas that the inlet port got into, filters the granule debris in the flue gas, prevents that debris from blockking up the delivery port, and the slider drives two removals of motor, and two drive brush wheels of motor rotate, clear away debris on the filter screen, and the dirty groove of collection has been seted up to the one end of fixed plate, and the one end fixedly connected with swash plate in the dirty groove of collection, brush wheel fall into the dirty inslot of collection after clearing away debris, convenient clearance.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses simple structure, convenient operation.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a low-temperature denitration system for a sodium chlorite solution according to the present invention;

fig. 2 is a schematic view of a filtering chamber structure of a sodium chlorite solution low-temperature denitration system according to the present invention;

fig. 3 is a schematic view of a cooling tube structure of a low-temperature denitration system for a sodium chlorite solution according to the present invention;

fig. 4 is a schematic structural view of a spray head of a sodium chlorite solution low-temperature denitration system according to the present invention;

fig. 5 is a schematic view of a sodium chlorite solution storage box of a low-temperature sodium chlorite solution denitration system according to the present invention.

In the figure: 1-air inlet, 2-flue gas baffle, 3-water tank, 4-spray chamber, 5-spray component, 6-sodium chlorite solution storage box, 7-air inlet, 8-motor I, 9-electric slide rail, 10-fixing plate, 11-filter screen, 12-inclined plate, 13-dirt collecting groove, 14-brush wheel, 15-slide block, 16-motor II, 17-cooling pipe, 18-branch pipe, 19-rotary table, 20-spray pipe, 21-rotary table, 22-connecting column, 23-fixing ring, 24-spray head, 25-liquid stirring fan.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

A low-temperature denitration system for a sodium chlorite solution comprises a spray room 4, wherein a sodium chlorite solution storage box 6 is arranged at the bottom of the spray room 4, a liquid stirring fan 25 is fixedly connected to the inner wall of the bottom of the sodium chlorite solution storage box 6, a motor III is fixedly connected to the bottom of the liquid stirring fan 25, a filter chamber is arranged on one side of the spray room 4, a spray assembly 5 is fixedly connected to the inner wall of the bottom of the spray room 4, an air outlet and a waste liquid outlet are formed in one side of the spray room 4, the spray assembly 5 comprises a rotary disc 19 and spray pipes 20, the spray pipes 20 are fixedly connected to the top of the rotary disc 19, branch pipes 18 are fixedly connected to the outer walls of the spray pipes 20, the number of the branch pipes 18 is four, a spray head 24 is fixedly connected to one end of each branch pipe 18, and a fixing ring 23 is fixedly connected to the outer wall of one end of each spray head 24, one end of the fixing ring 23 is fixedly connected with a connecting column 22, and one end of the connecting column 22 is fixedly connected with a rotating disc 21; through setting up spray set 5, carousel 19 drives the shower 20 rotation at its top, and branch pipe 18 of shower 20 outer wall fixed connection follows the rotation, sprays to each direction in the spray room 4, increases the spraying scope, and the sodium chlorite solution of spun strikes capstan 21 simultaneously, makes capstan 21 rotate, breaks away into the sodium chlorite solution and becomes the drop of water, makes flue gas and sodium chlorite solution fully contact, effective absorption nitrogen oxide.

In order to filter particulate impurities in flue gas, as shown in fig. 1, 2 and 3, one end of a spray chamber 4 is provided with a water tank 3, a water pump is arranged inside the water tank 3, one end of the water tank 3 is fixedly connected with a cooling pipe 17, the outer wall of the cooling pipe 17 is fixedly connected with a radiating fin, a filtering chamber is arranged at the bottom of the water tank 3, the inner wall of the filtering chamber is fixedly connected with a flue gas baffle plate 2, one end of the flue gas baffle plate 2 is provided with a filtering port, the inner wall of the filtering port is provided with a filtering screen 11, two ends of the filtering screen 11 are rotatably connected with a roller, one end of the roller is fixedly connected with a motor I8, the motor I8 is fixedly connected with the top of the flue gas baffle plate 2, the top of the flue gas baffle plate 2 is provided with an electric slide rail 9, the top of the electric slide rail 9 is slidably connected with a slide block 15, the top of the slide block 15 is fixedly connected with a motor II 16, and one end of the motor II 16 is fixedly connected with a brush wheel 14, the brush wheel 14 is contacted with the filter screen 11, one end of the flue gas baffle 2 is fixedly connected with a fixed plate 10, one end of the fixed plate 10 is provided with a sewage collecting groove 13, one end of the sewage collecting groove 13 is fixedly connected with an inclined plate 12, one side of the inclined plate 12 is fixedly connected with the outer wall of one side of the flue gas baffle 2, the outer wall of one side of the filter chamber is provided with an air inlet 1, and one side of the connection part of the filter chamber and the spray chamber 4 is provided with an air inlet 7; by arranging the cooling pipe 17, the flue gas is filtered by the filter screen 11 and then contacts with the cooling pipe 17, the cooling pipe 17 cools the flue gas, the temperature of the flue gas is controlled within a reasonable range, the sodium chlorite solution is prevented from being decomposed due to overhigh temperature of the flue gas, the flue gas denitration effect is prevented from being influenced, and meanwhile, the heat exchange area of the flue gas can be increased and the cooling effect is improved due to the fact that the cooling fins are fixedly connected to the outer wall of the cooling pipe 17; through setting up filter screen 11, motor 8 drives filter screen 11 and rotates, filter the flue gas that inlet port 1 got into, filter the granule debris in the flue gas, prevent that debris from blockking up the delivery port, slider 15 drives two 16 removals of motor, two 16 drive brush wheels 14 of motor rotate, clear away debris on the filter screen 11, dirty groove 13 of collection has been seted up to the one end of fixed plate 10, the one end fixedly connected with swash plate 12 in dirty groove 13 of collection, brush wheels 14 falls into dirty inslot 13 of collection after clearing away debris, convenient clearance.

The working principle is as follows: the first motor 8 drives the filter screen 11 to rotate, the smoke entering the air inlet 1 is filtered, particle impurities in the smoke are filtered, the water outlet is prevented from being blocked by the impurities, the second motor 15 drives the second motor 16 to move, the second motor 16 drives the brush wheel 14 to rotate, the impurities on the filter screen 11 are removed, a dirt collecting groove 13 is formed in one end of the fixing plate 10, an inclined plate 12 is fixedly connected to one end of the dirt collecting groove 13, the impurities are removed by the brush wheel 14 and then fall into the dirt collecting groove 13, cleaning is facilitated, the smoke is filtered by the filter screen 11 and then contacts with the cooling pipe 17, the cooling pipe 17 cools the smoke, the temperature of the smoke is controlled within a reasonable range, sodium chlorite solution is prevented from being decomposed due to overhigh temperature of the smoke, the smoke denitration effect is influenced, meanwhile, cooling fins are fixedly connected to the outer wall of the cooling pipe 17, the heat exchange area of the smoke can be increased, the cooling effect is improved, and the rotary disc 19 drives the spray pipe 20 at the top of the rotary disc 19 to rotate, the branch pipes 18 fixedly connected with the outer walls of the spraying pipes 20 rotate along with the rotation and spray in all directions in the spraying chamber 4, so that the spraying range is enlarged, and meanwhile, the sprayed sodium chlorite solution impacts the rotary disc 21 to enable the rotary disc 21 to rotate, so that the sodium chlorite solution is dispersed into water drops, the flue gas is fully contacted with the sodium chlorite solution, and the nitrogen oxides are effectively absorbed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The low-temperature denitration system for the sodium chlorite solution comprises a spray chamber (4) and is characterized in that a sodium chlorite solution storage box (6) is arranged at the bottom of the spray chamber (4), a filter chamber is arranged on one side of the spray chamber (4), a spray assembly (5) is fixedly connected to the inner wall of the bottom of the spray chamber (4), an air outlet and a waste liquid outlet are formed in one side of the spray chamber (4), the spray assembly (5) comprises a rotary disc (19) and spray pipes (20), the spray pipes (20) are fixedly connected to the top of the rotary disc (19), branch pipes (18) are fixedly connected to the outer wall of each spray pipe (20), the number of the branch pipes (18) is four, one end of each branch pipe (18) is fixedly connected with a spray head (24), one end of each spray head (24) is fixedly connected with a fixing ring (23), one end of each fixing ring (23) is fixedly connected with a connecting column (22), one end of the connecting column (22) is fixedly connected with a rotating disc (21).

2. The low-temperature denitration system for the sodium chlorite solution as claimed in claim 1, wherein a liquid stirring fan (25) is fixedly connected to the inner wall of the bottom of the sodium chlorite solution storage tank (6), and a motor III is fixedly connected to the bottom of the liquid stirring fan (25).

3. The low-temperature denitration system for the sodium chlorite solution according to claim 1, wherein a water tank (3) is arranged at one end of the spray chamber (4), a water pump is arranged inside the water tank (3), a cooling pipe (17) is fixedly connected to one end of the water tank (3), and cooling fins are fixedly connected to the outer wall of the cooling pipe (17).

4. The low-temperature denitration system for the sodium chlorite solution as claimed in claim 1, wherein the filtering chamber is arranged at the bottom of the water tank (3), a flue gas partition plate (2) is fixedly connected to the inner wall of the filtering chamber, a filtering opening is formed at one end of the flue gas partition plate (2), a filtering net (11) is arranged on the inner wall of the filtering opening, rollers are rotatably connected to two ends of the filtering net (11), a first motor (8) is fixedly connected to one end of each roller, and the first motor (8) is fixedly connected to the top of the flue gas partition plate (2).

5. The low-temperature denitration system for the sodium chlorite solution according to claim 4, wherein an electric slide rail (9) is arranged at the top of the flue gas baffle (2), a slide block (15) is slidably connected to the top of the electric slide rail (9), a second motor (16) is fixedly connected to the top of the slide block (15), a brush wheel (14) is fixedly connected to one end of the second motor (16), and the brush wheel (14) is in contact with the filter screen (11).

6. The low-temperature denitration system for the sodium chlorite solution according to claim 4, wherein one end of the flue gas baffle plate (2) is fixedly connected with a fixing plate (10), one end of the fixing plate (10) is provided with a sewage collection tank (13), one end of the sewage collection tank (13) is fixedly connected with an inclined plate (12), and one side of the inclined plate (12) is fixedly connected with the outer wall of one side of the flue gas baffle plate (2).

7. The low-temperature denitration system for the sodium chlorite solution as claimed in claim 4, wherein an air inlet (1) is formed in the outer wall of one side of the filtering chamber, and an air inlet (7) is formed in one side of the joint of the filtering chamber and the spraying chamber (4).