Phosphorus pentoxide production tail gas treatment equipment

Abstract

The utility model relates to the technical field of phosphorus pentoxide tail gas treatment equipment, in particular to phosphorus pentoxide production tail gas treatment equipment which comprises an electrostatic dust collector and a bag-type dust collector arranged on one side of the electrostatic dust collector. The air outlet end of the electrostatic dust collector is communicated with the air inlet end of the bag-type dust collector through a breather pipe, a conveying pipe is fixedly mounted at the air outlet end of the bag-type dust collector, fans are fixedly mounted on the inner walls of the breather pipe and the conveying pipe, a spray tower is arranged on the conveying pipe, and an upper sponge filter screen and a lower sponge filter screen are fixedly mounted on the inner wall of the spray tower; an activated carbon adsorption layer is fixedly mounted on the inner wall of a top cylinder of the spray tower, a booster pump is arranged on one side of the spray tower, a vertical pipe is fixedly mounted at the water outlet end of the booster pump, an upper horizontal pipe and a lower horizontal pipe are fixedly mounted on the vertical pipe, and a plurality of nozzles are fixedly mounted at the bottoms of the horizontal pipes. The device disclosed by the utility model has a better treatment effect and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphorus pentoxide tail gas treatment equipment, in particular to phosphorus pentoxide production tail gas treatment equipment. Background Art

[0002] Phosphorus pentoxide is an important inorganic compound and is widely used in chemical production. A large amount of tail gas will be generated during the production process of phosphorus pentoxide. These tail gases contain a variety of harmful substances, such as phosphorus oxides, sulfur dioxide, etc., which have serious impacts on the environment and human health. In order to reduce the adverse effects on the environment, it is usually necessary to treat the tail gas before discharging it. When performing tail gas treatment operations, corresponding tail gas treatment equipment is usually used. There are many types of tail gas treatment equipment on the market, and most of the tail gas treatment equipment uses spraying and filtration to complete the tail gas treatment operation.

[0003] However, when directly using the spraying and filtering method for treatment, since the exhaust gas just discharged contains more smoke and acid mist, it is difficult to achieve a good filtering treatment effect by using the spraying and filtering method, especially when the exhaust gas emission is large, it is difficult to achieve a good treatment effect by using a single spraying method. When using the filtering method for filtering, more impurities will clog the filter, affecting the subsequent filtering effect of the filter, and further bringing inconvenience to the exhaust gas treatment operation. In view of this, we proposed the phosphorus pentoxide production exhaust gas treatment equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a tail gas treatment device for phosphorus pentoxide production to solve the defects mentioned in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] Tail gas treatment equipment for phosphorus pentoxide production includes an electrostatic precipitator and a bag-type dust collector arranged on one side of the electrostatic precipitator, an air inlet pipe is fixedly installed at the air inlet end of the electrostatic precipitator, an air outlet end of the electrostatic precipitator is connected to the air inlet end of the bag-type dust collector through a ventilation pipe, a delivery pipe is fixedly installed at the air outlet end of the bag-type dust collector, fans are fixedly installed on the inner walls of the ventilation pipe and the delivery pipe, a spray tower is arranged on the delivery pipe, two upper and lower symmetrical sponge filters are fixedly installed on the inner wall of the spray tower, an activated carbon adsorption layer is fixedly installed on the inner wall of the top cylinder of the spray tower, a booster pump is arranged on one side of the spray tower, a vertical pipe is fixedly installed at the water outlet end of the booster pump, two upper and lower symmetrical horizontal pipes are fixedly installed on the vertical pipe, and a plurality of nozzles arranged linearly and equidistantly are fixedly installed at the bottom of the horizontal pipe.

[0007] Preferably, a bent pipe is fixedly installed at the end of the delivery pipe, and the end of the bent pipe is inserted into the liquid surface in the spray tower, so that the exhaust gas can react with the liquid medicine in the spray tower in a timely manner.

[0008] Preferably, a plurality of evenly distributed tubes arranged in a ring shape with equal intervals are fixedly mounted on the end of the curved tube, and the evenly distributed tubes are used for uniform gas outlet operation.

[0009] Preferably, the two horizontal tubes are respectively located above the corresponding two sponge filters, and the sponge filter located below is immersed in the liquid surface in the spray tower, so that the sponge filter can further filter the exhaust gas.

[0010] Preferably, the activated carbon adsorption layer is located above the horizontal tube and is used for tail gas adsorption treatment operations.

[0011] Preferably, a liquid medicine pipe is fixedly installed at the water inlet end of the booster pump, and the liquid medicine pipe is used for the introduction of reaction liquid medicine.

[0012] Preferably, an external exhaust pipe is fixedly installed on the top of the spray tower, and the external exhaust pipe is used for gas exhaust operation.

[0013] Preferably, a sewage pipe is fixedly mounted on the bottom cylinder of the spray tower, and a sewage valve is fixedly mounted on the sewage pipe, so that the sewage valve can be opened to perform sewage discharge operations at the sewage pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can remove phosphoric acid smoke by means of an electrostatic precipitator, and can remove mist droplets by means of a bag filter. In addition, the utility model cooperates with the use of a spray tower to realize the spraying of liquid medicine for reaction treatment operations, thereby achieving multiple purification treatments and ensuring a cleaner and more thorough effect on the exhaust gas treatment.

[0016] 2. The utility model can utilize the sponge filter and the activated carbon adsorption layer to further filter and adsorb the exhaust gas, thereby ensuring that the exhaust gas is treated more cleanly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is one of the partial structural schematic diagrams of the utility model;

[0019] Figure 3 This is the second schematic diagram of the partial structure of the utility model;

[0020] Figure 4 It is a cross-sectional view of the spray tower of the utility model.

[0021] The meaning of each number in the figure is:

[0022] 1. Electrostatic precipitator; 10. Air intake pipe; 11. Bag filter; 12. Ventilation pipe; 13. Delivery pipe; 14. Fan; 15. Bend pipe; 16. Uniform distribution pipe;

[0023] 2. Spray tower; 20. Sponge filter; 21. Activated carbon adsorption layer; 22. External discharge pipe; 23. Drain pipe; 24. Drain valve; 25. Booster pump; 26. Liquid medicine pipe; 27. Vertical pipe; 28. Horizontal pipe; 29. ​​Nozzle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 The utility model provides a technical solution: a tail gas treatment device for phosphorus pentoxide production, comprising an electrostatic precipitator 1 and a bag filter 11 arranged on one side of the electrostatic precipitator 1, the electrostatic precipitator 1 is used to remove phosphoric acid smoke, the bag filter 11 is used to remove phosphorus-containing inorganic acid droplets, an air inlet pipe 10 is fixedly installed at the air inlet end of the electrostatic precipitator 1, the air outlet end of the electrostatic precipitator 1 is connected to the air inlet end of the bag filter 11 through a vent pipe 12, a delivery pipe 13 is fixedly installed at the air outlet end of the bag filter 11, and the inner of the vent pipe 12 and the delivery pipe 13 are connected to each other. A fan 14 is fixedly installed on the wall, a spray tower 2 is arranged on the delivery pipe 13, two upper and lower symmetrical sponge filters 20 are fixedly installed on the inner wall of the spray tower 2, an activated carbon adsorption layer 21 is fixedly installed on the inner wall of the top cylinder of the spray tower 2, a booster pump 25 is arranged on one side of the spray tower 2, a vertical pipe 27 is fixedly installed at the water outlet end of the booster pump 25, two upper and lower symmetrical horizontal pipes 28 are fixedly installed on the vertical pipe 27, and a plurality of nozzles 29 arranged linearly and evenly spaced are fixedly installed on the bottom of the horizontal pipe 28 to facilitate spray treatment operations.

[0026] In this embodiment, a bent pipe 15 is fixedly installed at the end of the delivery pipe 13, and the end of the bent pipe 15 is inserted into the liquid surface in the spray tower 2, so that the exhaust gas can react with the liquid medicine in the spray tower 2 in time.

[0027] Specifically, a plurality of evenly spaced uniformly distributed pipes 16 are fixedly mounted at the end of the curved pipe 15. The evenly distributed pipes 16 are used for uniform gas discharge operation, so that the exhaust gas can flow through the evenly distributed pipes 16 into various parts of the liquid in the spray tower 2 more evenly.

[0028] Furthermore, the two horizontal pipes 28 are respectively located above the corresponding two sponge filters 20, and the sponge filter 20 located below is immersed in the liquid surface in the spray tower 2, so that the sponge filter 20 can further filter the exhaust gas.

[0029] In addition, the activated carbon adsorption layer 21 is located above the horizontal pipe 28 for exhaust gas adsorption treatment operation.

[0030] In addition, a liquid medicine pipe 26 is fixedly installed at the water inlet end of the booster pump 25, and the liquid medicine pipe 26 is used for the operation of introducing the reaction liquid medicine.

[0031] It is worth noting that an external exhaust pipe 22 is fixedly installed on the top of the spray tower 2, and the external exhaust pipe 22 is used for gas exhaust operation.

[0032] It is worth noting that a sewage pipe 23 is fixedly installed on the bottom cylinder of the spray tower 2, and a sewage valve 24 is fixedly installed on the sewage pipe 23, so that the sewage valve 24 can be opened to perform sewage discharge operations at the sewage pipe 23.

[0033] When the phosphorus pentoxide production tail gas treatment equipment of the utility model is in use, the air inlet pipe 10 is connected to the external exhaust gas access pipeline, and as the exhaust gas enters the electrostatic precipitator 1, the phosphoric acid fume removal operation is performed, the fan 14 is connected to the external power supply and made to work, the fan 14 works to realize air supply, and the exhaust gas in the electrostatic precipitator 1 is transported to the bag filter 11 for the removal operation of phosphorus-containing inorganic acid droplets. After the removal, as the corresponding fan 14 works, the exhaust gas is transported to the spray tower 2, the liquid medicine pipe 26 is connected to the external reaction liquid medicine access pipeline, the booster pump 25 is connected to the external power supply and made to work, the booster pump 25 works to realize the delivery of the liquid medicine to the nozzle 29 for spraying, and the spraying operation is completed. Finally, the treated exhaust gas can be filtered through the sponge filter 20 and the activated carbon adsorption layer 21 and then discharged from the external exhaust pipe 22.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. Phosphorus pentoxide production tail gas treatment equipment, characterized by: The invention comprises an electrostatic precipitator (1) and a bag filter (11) arranged on one side of the electrostatic precipitator (1), wherein an air inlet pipe (10) is fixedly installed at the air inlet end of the electrostatic precipitator (1), an air outlet end of the electrostatic precipitator (1) is connected to an air inlet end of the bag filter (11) via a ventilation pipe (12), a delivery pipe (13) is fixedly installed at the air outlet end of the bag filter (11), a fan (14) is fixedly installed on the inner wall of the ventilation pipe (12) and the delivery pipe (13), and a spray nozzle (14) is provided on the delivery pipe (13). A tower (2) is provided, wherein two mutually symmetrical sponge filters (20) are fixedly installed on the inner wall of the spray tower (2), an activated carbon adsorption layer (21) is fixedly installed on the inner wall of the top cylinder of the spray tower (2), a booster pump (25) is arranged on one side of the spray tower (2), a vertical pipe (27) is fixedly installed at the water outlet end of the booster pump (25), two mutually symmetrical horizontal pipes (28) are fixedly installed on the vertical pipe (27), and a plurality of nozzles (29) arranged linearly and equidistantly are fixedly installed at the bottom of the horizontal pipe (28).

2. The tail gas treatment equipment for phosphorus pentoxide production according to claim 1, characterized in that: A bent pipe (15) is fixedly mounted at the end of the delivery pipe (13), and the end of the bent pipe (15) is inserted into the liquid surface in the spray tower (2).

3. The tail gas treatment equipment for phosphorus pentoxide production according to claim 2, characterized in that: A plurality of evenly distributed tubes (16) arranged in a ring shape at equal intervals are fixedly mounted on the end of the curved tube (15), and the evenly distributed tubes (16) are used for even gas outlet operation.

4. The tail gas treatment equipment for phosphorus pentoxide production according to claim 3, characterized in that: The two horizontal tubes (28) are respectively located above the corresponding two sponge filter screens (20), and the sponge filter screen (20) located below is immersed in the liquid surface in the spray tower (2).

5. The tail gas treatment equipment for phosphorus pentoxide production according to claim 1, characterized in that: The activated carbon adsorption layer (21) is located above the horizontal tube (28) and is used for tail gas adsorption treatment operations.

6. The tail gas treatment equipment for phosphorus pentoxide production according to claim 1, characterized in that: A liquid medicine pipe (26) is fixedly installed at the water inlet end of the booster pump (25), and the liquid medicine pipe (26) is used for the operation of introducing reaction liquid medicine.

7. The tail gas treatment equipment for phosphorus pentoxide production according to claim 1, characterized in that: An external discharge pipe (22) is fixedly installed on the top of the spray tower (2), and the external discharge pipe (22) is used for gas discharge operation.

8. The tail gas treatment equipment for phosphorus pentoxide production according to claim 1, characterized in that: A sewage pipe (23) is fixedly mounted on the bottom cylinder of the spray tower (2), and a sewage valve (24) is fixedly mounted on the sewage pipe (23).

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