CN211358345U

CN211358345U - Thermal power factory gas cleaning equipment based on environmental protection engineering

Info

Publication number: CN211358345U
Application number: CN201921840622.XU
Authority: CN
Inventors: 宋志福; 闫旭东; 汪奎; 周佳平
Original assignee: Wuhan Xuqing Engineering Technology Co ltd
Current assignee: Wuhan Xuqing Engineering Technology Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-08-28
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a thermal power factory flue gas purification equipment based on environmental protection engineering, including the reaction tower, the fixed base that is provided with of reaction tower exterior wall, the reaction tower top is provided with the pipeline of giving vent to anger, the reaction tower inner chamber has set gradually defroster, whitewashing pipeline, drip chamber and thick liquid chamber down from last, reaction tower bottom fixed mounting has agitator motor. The utility model discloses in, when the limestone slurry liquid level that level sensor in the serosity chamber detected was less than the predetermined value, the second valve on control second outlet pipe and the storage channel was opened, and process water gets into the serosity chamber with the limestone powder according to certain proportion, and agitator motor links to open this moment, stirs limestone powder and process water to realize the automatic replenishment of limestone slurry, improved thermal power factory flue gas cleaning equipment's result of use.

Description

Thermal power factory gas cleaning equipment based on environmental protection engineering

Technical Field

The utility model relates to a flue gas purification technical field especially relates to a thermal power factory flue gas purification equipment based on environmental protection engineering.

Background

Flue gas desulfurization refers to the removal of sulfur oxides (SO2 and SO3) from flue gases or other industrial waste gases.

At present, most of existing flue gas purification equipment for thermal power plants adopts a mode that dust is introduced into a reaction tower after dust removal treatment, and limestone slurry is sprayed through a spraying layer, so that the limestone slurry and the smoke fully react to realize the treatment of the smoke; secondly, current thermal power factory flue gas purification equipment lacks the automatic cleaning device of defroster, carries the gas of thick liquid and separates with the thick liquid behind the defroster, and the part thick liquid after the separation adsorbs easily and causes the defroster to block up on the defroster to thermal power factory flue gas purification equipment's stability has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, the invention provides the flue gas purification equipment of the thermal power plant based on the environmental protection project.

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

a thermal power plant flue gas purification device based on environmental protection engineering comprises a reaction tower, wherein a base is fixedly arranged on the outer surface wall of the reaction tower, an air outlet pipeline is arranged at the top of the reaction tower, a demister, a guniting pipeline, a settling chamber and a slurry chamber are sequentially arranged in the inner cavity of the reaction tower from top to bottom, a stirring motor is fixedly arranged at the bottom of the reaction tower, the output end of the stirring motor is rotatably connected with a stirring blade through a rotating shaft, a liquid level sensor is arranged on the inner surface wall of the vertical end of the slurry chamber, the slurry chamber is in transmission connection with the guniting pipeline through the slurry transmission pipeline, a slurry pump is arranged on the slurry transmission pipeline, a storage chamber is arranged at the bottom of the horizontal end of the base, the storage chamber is in transmission connection with the slurry chamber through a storage channel, a dust, the dust removal chamber top is provided with the technology water tank, the technology water tank passes through second outlet pipe and slurry chamber transmission connection, all be provided with the second valve on second outlet pipe and the storage passageway, just second valve and agitator motor interlock control.

As a further description of the above technical solution:

the cleaning device is characterized in that a cleaning pipeline is arranged above the demister and is in transmission connection with a process water tank through a first water outlet pipe, a first valve is arranged on the first water outlet pipe, and a timer is controlled by the inner cavity of the first valve in a linkage mode.

As a further description of the above technical solution:

and a separation net is fixedly arranged between the slurry chamber and the settling chamber.

As a further description of the above technical solution:

and the inner surface wall of the air outlet pipeline is provided with a heat exchanger.

As a further description of the above technical solution:

and a plurality of groups of dust removing cloth bags which are horizontally distributed are arranged in the inner cavity of the dust removing chamber.

As a further description of the above technical solution:

the bottom of the cleaning pipeline and the bottom of the guniting pipeline are both provided with a plurality of groups of atomizing nozzles.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, when the limestone slurry liquid level that level sensor in the serosity chamber detected was less than the predetermined value, the second valve on control second outlet pipe and the storage channel was opened, and process water gets into the serosity chamber with the limestone powder according to certain proportion, and agitator motor links to open this moment, stirs limestone powder and process water to realize the automatic replenishment of limestone slurry, improved thermal power factory flue gas cleaning equipment's result of use.

2. The utility model discloses in, through first valve cooperation time-recorder chain control for first valve realizes equidistant opening, makes first outlet pipe transmit the clearance pipeline with the process water in the process water tank at a certain time, and clears up the defroster through the atomizing shower nozzle of clearance pipeline bottom, has guaranteed the unobstructed liquid level of having stabilized the reaction tower in the time of the defroster, thereby has guaranteed thermal power factory flue gas purification equipment's stability.

Drawings

Fig. 1 shows a schematic structural diagram provided according to an embodiment of the present invention;

fig. 2 shows a schematic top view structure provided according to an embodiment of the present invention;

fig. 3 shows a schematic front view structure diagram provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a reaction tower; 2. an air outlet pipe; 3. a heat exchanger; 4. cleaning the pipeline; 5. a first water outlet pipe; 6. a first valve; 7. a process water tank; 8. a dust chamber; 9. an air inlet; 10. a dust removal cloth bag; 11. a base; 12. a storage chamber; 13. a second water outlet pipe; 14. a material storage channel; 15. a second valve; 16. stirring blades; 17. a stirring motor; 18. a slurry chamber; 19. a liquid level sensor; 20. a slurry transport pipeline; 21. a settling chamber; 22. a slurry pump; 23. a guniting pipeline; 24. a demister.

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. 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.

Referring to fig. 1-3, the present invention provides a technical solution: a flue gas purification device of a thermal power plant based on environmental protection engineering comprises a reaction tower 1, a base 11 is fixedly arranged on the outer surface wall of the reaction tower 1, an air outlet pipeline 2 is arranged at the top of the reaction tower 1, a demister 24, a slurry spraying pipeline 23, a settling chamber 21 and a slurry chamber 18 are sequentially arranged in the inner cavity of the reaction tower 1 from top to bottom, a stirring motor 17 is fixedly arranged at the bottom of the reaction tower 1, the output end of the stirring motor 17 is rotatably connected with a stirring blade 16 through a rotating shaft, a liquid level sensor 19 is arranged on the inner surface wall of the vertical end of the slurry chamber 18, the slurry chamber 18 is in transmission connection with the slurry spraying pipeline 23 through a slurry transmission pipeline 20, the slurry transmission pipeline 20 is provided with a slurry pump 22, a storage chamber 12 is arranged at the bottom of the horizontal end of the base 11, the storage chamber 12 is in transmission connection with the slurry chamber 18, the top of the dust chamber 8 is provided with a process water tank 7, the process water tank 7 is in transmission connection with a slurry chamber 18 through a second water outlet pipe 13, the second water outlet pipe 13 and the storage channel 14 are both provided with a second valve 15, and the second valve 15 and the stirring motor 17 are in linkage control.

Specifically, as shown in fig. 1, a cleaning pipeline 4 is arranged above the demister 24, the cleaning pipeline 4 is in transmission connection with a process water tank 7 through a first water outlet pipe 5, a first valve 6 is arranged on the first water outlet pipe 5, a timer is controlled in an inner cavity of the first valve 6 in an interlocking mode, the first valve 6 is in linkage control with the timer in a matching mode, the first valve 6 is opened at equal time intervals, the process water in the process water tank 7 is transmitted to the cleaning pipeline 4 through the first water outlet pipe 5 at certain intervals, the demister 24 is cleaned through an atomizing nozzle at the bottom of the cleaning pipeline 4, the liquid level of the reaction tower 1 is stabilized while the smoothness of the demister 24 is ensured, and the stability of flue gas purification equipment of a thermal power plant is ensured.

Specifically, as shown in fig. 1, a screen is fixedly installed between the slurry chamber 18 and the settling chamber 21 to place the byproducts after the reaction in better contact with air blown by a blower, thereby more completely and rapidly generating gypsum.

Specifically, as shown in fig. 1 and 3, a heat exchanger 3 is disposed on an inner surface wall of the gas outlet pipe 2 to increase a temperature of the purified gas, so as to increase a lifting height and a diffusion speed of the flue gas.

Specifically, as shown in fig. 1, a plurality of groups of dust removing cloth bags 10 are horizontally distributed in the inner cavity of the dust removing chamber 8 for separating dust from gas.

Specifically, as shown in fig. 1, a plurality of groups of atomizing nozzles are arranged at the bottoms of the cleaning pipeline 4 and the guniting pipeline 23, so that the process water and the limestone slurry can uniformly contact with the demister 24 and the gas.

The working principle is as follows: when in use, smoke dust enters the dust removal chamber 8 through the air inlet 9, dust and gas separation is realized under the action of a dust removal cloth bag 10 in the dust removal chamber 8, the separated gas enters the reaction tower 1 and moves upwards and upwards, the slurry transmission pipeline 20 transmits limestone slurry in the slurry chamber 18 to the slurry spraying pipeline 23 through the slurry pump 22 and sprays the limestone slurry through the atomizing nozzle at the bottom of the slurry spraying pipeline 23, the sprayed limestone slurry contacts with the gas and reacts to realize gas purification, the purified gas is continuously upwards separated from the slurry through the demister 24 and is transmitted to the chimney through the air outlet pipeline 2 to be discharged, byproducts after the reaction move downwards to the settling chamber 21 under the action of gravity and are oxidized into gypsum under the action of air introduced by the fan, when the limestone slurry liquid level detected by the liquid level sensor 19 in the slurry chamber 18 is lower than a preset value, the second water outlet pipe 13 and the second valve 15 on the storage channel 14 are controlled to be opened, the process water and the limestone powder enter the slurry chamber 18 according to a certain proportion, at the moment, the stirring motor 17 is in linkage opening, the limestone powder and the process water are stirred, so that automatic supplement of limestone slurry is realized, the using effect of the flue gas purification equipment of the thermal power plant is improved, the first valve 6 is in linkage control by matching with a timer, the first valve 6 is opened at equal time intervals, the process water in the process water tank 7 is transmitted to the cleaning pipeline 4 by the first water outlet pipe 5 at certain intervals, the demister 24 is cleaned by an atomizing nozzle at the bottom of the cleaning pipeline 4, the liquid level of the reaction tower 1 is stabilized while the smoothness of a power plant of the demister 24 is ensured, and the stability of the flue gas purification equipment of the thermal power plant is ensured.

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 utility model provides a thermal power factory flue gas purification equipment based on environmental protection engineering, includes reaction tower (1), its characterized in that, reaction tower (1) outward appearance wall is fixed and is provided with base (11), reaction tower (1) top is provided with outlet pipe way (2), reaction tower (1) inner chamber is from last to having set gradually defroster (24), whitewashing pipeline (23), drip chamber (21) and thick liquid room (18) down, reaction tower (1) bottom fixed mounting has agitator motor (17), agitator motor (17) output is connected with stirring leaf (16) through the axis of rotation, the vertical end inside surface wall of thick liquid room (18) is provided with level sensor (19), thick liquid room (18) are through thick liquid transmission pipeline (20) and whitewashing pipeline (23) transmission connection, just thick liquid transmission pipeline (20) are provided with thick liquid pump (22), base (11) horizontal end bottom is provided with storage compartment (12), storage compartment (12) are through storage passageway (14) and thick liquid chamber (18) transmission connection, base (11) top fixed mounting has clean room (8), clean room (8) one side is provided with air inlet (9), clean room (8) top is provided with process water tank (7), process water tank (7) are through second outlet pipe (13) and thick liquid chamber (18) transmission connection, all be provided with second valve (15) on second outlet pipe (13) and storage passageway (14), just second valve (15) and agitator motor (17) chain control.

2. The flue gas purification equipment of the thermal power plant based on the environmental protection project is characterized in that a cleaning pipeline (4) is arranged above the demister (24), the cleaning pipeline (4) is in transmission connection with a process water tank (7) through a first water outlet pipe (5), a first valve (6) is arranged on the first water outlet pipe (5), and a timer is controlled in an inner cavity of the first valve (6) in an interlocking manner.

3. The flue gas purification equipment of the thermal power plant based on the environmental protection project is characterized in that a separation net is fixedly arranged between the slurry chamber (18) and the settling chamber (21).

4. The flue gas purification equipment of the thermal power plant based on the environmental protection project as claimed in claim 1, wherein the inner surface wall of the gas outlet pipeline (2) is provided with a heat exchanger (3).

5. The flue gas purification equipment of the thermal power plant based on the environmental protection project as claimed in claim 1, wherein the inner cavity of the dust removal chamber (8) is provided with a plurality of groups of horizontally distributed dust removal cloth bags (10).

6. The flue gas purification equipment of the thermal power plant based on the environmental protection project as recited in claim 2, wherein a plurality of groups of atomizing nozzles are arranged at the bottom of the cleaning pipeline (4) and the bottom of the guniting pipeline (23).