CN218981051U

CN218981051U - Spray device for oxynitride treating agent of glass fiber kiln

Info

Publication number: CN218981051U
Application number: CN202222841748.7U
Authority: CN
Inventors: 李刚; 马庆文; 牛浩; 杜乐勇; 杜宾
Original assignee: Taishan Fiberglass Zoucheng Co Ltd
Current assignee: Taishan Fiberglass Zoucheng Co Ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-05-09
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a spray device for a nitrogen oxide treatment agent of a glass fiber kiln, which belongs to the technical field of spray devices and comprises a solution preparation tank, wherein a raw material bin is arranged outside the solution preparation tank, the raw material tank is connected with the outside of the solution preparation tank, a centrifugal pump mechanism is connected with the outside of the raw material tank, the tail end of the centrifugal pump mechanism is connected with a conveying pipeline, the tail end of the conveying pipeline is connected with a kiln, a flue is arranged above the kiln, a spray gun is arranged on the outer side of the flue, a spray head part in the spray gun is positioned in the flue to spray waste gas generated in the flue, a pressure sensor and a flow sensor are arranged on the conveying pipeline, and the pressure sensor and the flow sensor are electrically connected with a control system. The spraying agent and the spraying device are prepared on line to spray waste gas in the kiln flue in a linkage way, meanwhile, the pressure detection and the flow detection are designed to spray without manual intervention, and the problems in the prior art are solved.

Description

Spray device for oxynitride treating agent of glass fiber kiln

Technical Field

The utility model relates to a spray device for a nitrogen oxide treatment agent of a glass fiber kiln, and belongs to the technical field of spray devices.

Background

With the increasing importance of the national environmental protection work, the exhaust gas of enterprises has increasingly stringent indexes, the fuel combustion is required to provide heat to melt raw materials during the glass fiber production, harmful gases such as sulfur dioxide, nitrogen oxides and the like are generated in the combustion and melting process, and the exhaust gas can be exhausted after being qualified through the exhaust gas treatment, and the actual condition in the prior art adopts the (SNCR method) to treat the nitrogen oxides. The method is characterized in that under the action of no catalyst, urea solution is sprayed into a temperature window suitable for denitration reaction to reduce nitrogen oxides in the flue gas into harmless nitrogen and water. However, as the kiln flue temperature is higher, the common spraying equipment has high failure rate and short service life, and the fluctuation of exhaust gas discharged data is large due to frequent maintenance, so that a large environmental protection pressure is brought to companies. Meanwhile, a complete set of devices is lacking in the prior art at present, so that the spraying agent can not be directly used on a glass fiber kiln.

Disclosure of Invention

The utility model aims to provide a spraying device for a glass fiber kiln nitrogen oxide treatment agent, which realizes on-line preparation of spraying agent and linkage of the spraying device to spray waste gas in a kiln flue on the basis of the prior art, and simultaneously designs pressure detection and flow detection to spray without manual intervention, so that the problems in the prior art are solved.

The utility model discloses a spray device for a glass fiber kiln nitrogen oxide treatment agent, which comprises a solution preparation tank, wherein a raw material bin is arranged outside the solution preparation tank, a weighing device is arranged outside the raw material bin, a discharging opening is arranged below the weighing device, the raw material tank is connected to the outside of the solution preparation tank, a centrifugal pump mechanism is connected to the outside of the raw material tank, a conveying pipeline is connected to the tail end of the centrifugal pump mechanism, a kiln is connected to the tail end of the conveying pipeline, a flue is arranged above the kiln, a spray gun is arranged outside the flue, a spray head part in the spray gun is positioned in the flue to spray waste gas generated in the flue, a pressure sensor and a flow sensor are arranged on the conveying pipeline, and the pressure sensor and the flow sensor are electrically connected with a control system.

Further, the outside of the solution preparation tank is also connected with a water supplementing pipeline, and a first electric regulating valve is arranged on the water supplementing pipeline.

Further, a stirring mechanism is arranged in the solution preparation tank, and a stirring motor is connected above the stirring mechanism.

Further, the solution preparation tank is connected with the raw solution tank through a pipeline, and a suction pump is arranged on the pipeline.

Furthermore, the outsides of the solution preparation tank and the raw solution tank are respectively connected with a drain valve, and liquid level meters are respectively arranged in the solution preparation tank and the raw solution tank.

Further, the centrifugal pump mechanism includes a plurality of stages, and the multistage centrifugal pump mechanism includes an in-use centrifugal pump and a standby centrifugal pump.

Further, a second electric regulating valve is arranged at the outlet of the centrifugal pump mechanism, a nitrogen oxide detection device is arranged in the flue, and the second electric regulating valve and the nitrogen oxide detection device are electrically connected with the control system.

Further, the spray head of the spray gun adopts a two-fluid atomization spray head.

Compared with the prior art, the utility model has the following beneficial effects:

according to the spraying device for the nitrogen oxide treatment agent of the glass fiber kiln, 1 set of brand-new treatment agent spraying device is designed to comprise treatment agent configuration, so that the spraying agent is prepared on line and the spraying device is linked to spray waste gas in a kiln flue, and meanwhile, the spraying is performed without manual intervention in pressure detection and flow detection.

The micro differential pressure liquid level meter is designed in the stock solution barrel, liquid level information is converted into actual liquid level data through a module, the liquid level information is connected into a control system to realize real-time monitoring, an alarm prompt is automatically provided when the liquid level is low, a worker is reminded to click to configure a treating agent, and automatic configuration is realized through a follow-up expandable linkage.

2 pieces of multistage centrifugal high-pressure pump 1 are adopted, an 8-micrometer PP cotton filter is installed at the inlet of a spray pump, impurities in the treating agent are prevented from blocking an impeller and a spray head, a second electric regulating valve is arranged at the outlet, a pressure sensor and a flow sensor are connected into a control cabinet part through signals, an operator sets the spraying amount of the treating agent according to nitrogen oxide detection data, and the second electric regulating valve regulates the output opening according to flow change, so that flow stability is realized.

Drawings

FIG. 1 is a schematic diagram of the arrangement of a treating agent in a spraying device for treating agent of oxynitride in a glass fiber kiln;

FIG. 2 is a connection structure diagram of the whole spray device for the oxynitride treating agent in the glass fiber kiln;

FIG. 3 is a diagram showing the installation of the spray device for the nitrogen oxide treatment agent of the glass fiber kiln on the kiln;

FIG. 4 is a schematic block diagram of a treatment agent configuration in a spray device for treating nitrogen oxides in a glass fiber kiln according to the present utility model;

in the figure: 1. a weighing device; 2. a stirring motor; 3. a solution preparation tank; 4. preparing a tank liquid level meter; 5. a first electrically operated regulator valve; 6. a first blow-down valve; 7. a suction pump; 8. a second blow-down valve; 9. a stock solution tank; 10. a stock solution tank level gauge; 11. a centrifugal pump mechanism; 12. a centrifugal pump valve; 13. a second electric control valve; 14. a pressure sensor; 15. a first spray gun; 16. a second spray gun; 17. a third spray gun; 18. a flue; 19. a kiln; 20. a burner; 21. raw material bin.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

example 1:

as shown in fig. 1-4, the spray device for the glass fiber kiln nitrogen oxide treatment agent comprises a solution preparation tank 3, wherein a raw material bin 21 is arranged outside the solution preparation tank 3, a weighing device 1 is arranged outside the raw material bin 21, a discharging opening is arranged below the weighing device 1, the raw material tank 9 is connected to the outside of the solution preparation tank 3, a centrifugal pump mechanism 11 is connected to the outside of the raw material tank 9, a conveying pipeline is connected to the tail end of the centrifugal pump mechanism 11, a kiln 19 is connected to the tail end of the conveying pipeline, a combustor 20 is arranged in the kiln 19, a flue 18 is arranged above the kiln 19, a spray gun is arranged on the outer side of the flue 18, a spray head part in the spray gun is positioned in the flue 18 to spray waste gas generated in the flue 18, and a pressure sensor 14 and a flow sensor and a second electric regulating valve 13 are arranged on the conveying pipeline and are electrically connected with a control system.

The outside of the solution preparation tank 3 is also connected with a water supplementing pipeline, and a first electric regulating valve 5 is arranged on the water supplementing pipeline. After the program setting, water is automatically fed through a flowmeter and an electric regulating valve, after the water quantity is normal, the water is automatically fed to a configuration tank through a spiral reamer and an electronic scale, stirring is started after the completion of the water quantity, and the water is pumped into a raw material tank 9 according to the raw material setting stirring time configuration.

The inside of the solution preparation tank 3 is provided with a stirring mechanism, and a stirring motor 2 is connected above the stirring mechanism.

The solution preparation tank 3 is connected with the raw solution tank 9 through a pipeline, and a suction pump 7 is arranged on the pipeline.

The solution preparation tank 3 and the outside of the stock solution tank 9 are both connected with drain valves, including a first drain valve 6 and a second drain valve 8, and the solution preparation tank 3 and the stock solution tank 9 are both internally provided with liquid level meters, including a preparation tank liquid level meter 4 and a stock solution tank liquid level meter 10.

The centrifugal pump mechanism 11 includes a plurality of stages, including an in-use centrifugal pump and a standby centrifugal pump. A centrifugal pump valve 12 is connected to the centrifugal pump and the backup centrifugal pump.

The outlet of the centrifugal pump mechanism 11 is provided with a second electric regulating valve 13, a nitrogen oxide detection device is arranged in the flue 18, and the second electric regulating valve and the nitrogen oxide detection device are electrically connected with the control system.

The spray head of the spray gun adopts a two-fluid atomization spray head.

The specific application of this embodiment is:

when the treating agent is configured, water is automatically fed through the first electric regulating valve 5, water is automatically fed into the configuration cylinder through the spiral reamer and the electronic scale after the water quantity is normal, stirring is started after the completion, and the raw material is pumped into the raw material tank 9 according to the raw material set stirring time configuration.

The raw liquid tank 9 is internally provided with a raw liquid tank level gauge 10, liquid level information is converted into actual liquid level data through a module, the liquid level information is connected into a control system to realize real-time monitoring, and an alarm prompt is automatically provided when the liquid level is low, so that a worker is reminded to click to configure the treating agent.

The spraying main equipment adopts 2 multi-stage centrifugal high-pressure pumps 1, an 8-micrometer PP cotton filter is arranged at the inlet of a centrifugal pump 11, impurities in the treating agent are prevented from blocking impellers and spray heads, a second electric regulating valve 13, a pressure sensor and a flow sensor are arranged at the outlet, signals of the flow sensor are connected into a control system, an operator sets the spraying amount of the treating agent according to nitrogen oxide detection data, and the second electric regulating valve 13 automatically regulates the output opening according to flow change, so that flow stability is realized. The pressure sensor and the flow sensor are connected into the control system through signals, a control scheme is designed, and the standby water pump is automatically started to work after the flow or the pressure is lower than a safety value.

The spray gun sets up 3 sets, including first spray gun 15, second spray gun 16 and third spray gun 17, and the shower nozzle adopts two fluid atomizer, through the ratio adjustment of compressed air and treating agent, realizes best atomization effect, for solving the problem that environment high temperature shower nozzle burns out, protects the shower nozzle according to the special cooling water package of shower nozzle structural design.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

According to the spraying device for the nitrogen oxide treatment agent of the glass fiber kiln, disclosed by the embodiment of the utility model, the spraying agent is prepared on line and is linked with the spraying device to spray the waste gas in the flue of the kiln on the basis of the prior art, and meanwhile, the pressure detection and the flow detection are designed to spray without manual intervention, so that the problems in the prior art are solved. The present utility model is not limited to the embodiments described, but is capable of modification, alteration, replacement and variation in embodiments without departing from the spirit and scope of the present utility model.

Claims

1. The utility model provides a glass fiber kiln nitrogen oxide treatment agent spray set which characterized in that: including solution preparation jar (3), the outside of solution preparation jar (3) is equipped with former feed bin (21), the outside of former feed bin (21) is equipped with weighing device (1), and the below of weighing device (1) is equipped with the feed opening, the external connection of solution preparation jar (3) has former liquid jar (9), and the external connection of former liquid jar (9) has centrifugal pump mechanism (11), the end-to-end connection of centrifugal pump mechanism (11) has pipeline, pipeline's end-to-end connection has kiln (19), the top of kiln (19) is equipped with flue (18), the outside of flue (18) is equipped with the spray gun, and the shower nozzle position in the spray gun is located flue (18) and sprays the waste gas that produces in flue (18), be equipped with pressure sensor (14) and flow sensor on the pipeline, pressure sensor (14) and flow sensor electrically connected with control system.

2. The spray device for the oxynitride treating agent of the glass fiber kiln according to claim 1, wherein: the outside of solution preparation jar (3) still be connected with the moisturizing pipeline, be equipped with first electronic governing valve (5) on the moisturizing pipeline.

3. The spray device for the oxynitride treating agent of the glass fiber kiln according to claim 1 or 2, characterized in that: the solution preparation tank (3) is internally provided with a stirring mechanism, and a stirring motor (2) is connected above the stirring mechanism.

4. The spray device for the oxynitride treating agent of the glass fiber kiln according to claim 1 or 2, characterized in that: the solution preparation tank (3) is connected with the stock solution tank (9) through a pipeline, and a suction pump (7) is arranged on the pipeline.

5. The spray device for the oxynitride treating agent of the glass fiber kiln according to claim 1 or 2, characterized in that: the external parts of the solution preparation tank (3) and the raw solution tank (9) are respectively connected with a drain valve, and liquid level meters are respectively arranged in the solution preparation tank (3) and the raw solution tank (9).

6. The spray device for the oxynitride treating agent of the glass fiber kiln according to claim 1, wherein: the centrifugal pump mechanism (11) comprises a multi-stage centrifugal pump and a standby centrifugal pump.

7. The spray device for the oxynitride treating agent of the glass fiber kiln according to claim 1 or 6, characterized in that: the outlet of the centrifugal pump mechanism (11) is provided with a second electric regulating valve (13), a nitrogen oxide detection device is arranged in the flue (18), and the second electric regulating valve (13) and the nitrogen oxide detection device are electrically connected with the control system.

8. The spray device for the oxynitride treating agent of the glass fiber kiln according to claim 1, wherein: the spray head of the spray gun adopts a two-fluid atomization spray head.