CN215138509U

CN215138509U - Desulfurization dust collector for exhaust-gas treatment

Info

Publication number: CN215138509U
Application number: CN202120809053.3U
Authority: CN
Inventors: 林创洁
Original assignee: Foshan Yidaying Electromechanical Co ltd
Current assignee: Foshan Yidaying Electromechanical Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-14
Anticipated expiration: 2031-04-20

Abstract

The utility model relates to a desulfurization and dust removal device for waste gas treatment, which comprises a desulfurization tower, a hot blast stove, a spray tower and an exhaust fan which are arranged in parallel; the top of the desulfurizing tower is connected with an air inlet pipe, and the middle part of the desulfurizing tower is integrally provided with a plurality of groups of slurry input holes; the hot blast stove is connected with the desulfurizing tower through a hot blast pipe; the air inlet end of the exhaust fan is connected to the bottom end in the desulfurization tower through an air exhaust pipe, and the air outlet end of the exhaust fan is connected to the bottom end in the spray tower; a cloth bag type dust collector is also arranged at the joint between the exhaust fan and the air exhaust duct; and a spray head and an exhaust pipe are arranged in the spray tower. The utility model has the advantages of complete desulphurization, good dust removal effect, low equipment cost and convenient use.

Description

Desulfurization dust collector for exhaust-gas treatment

Technical Field

The utility model relates to a desulfurization dust collector for exhaust-gas treatment belongs to exhaust-gas treatment technical field.

Background

At present, the rapid development of industrialization inevitably produces a large amount of industrial waste gas, which not only affects the normal production of the factory, but also causes serious pollution to the environment, so how to effectively reduce the pollution caused by the industrial waste gas becomes a problem which needs to be solved urgently at present. Such as ceramic factories, metallurgical plants, etc., generate a large amount of sulfur-containing waste gas and particles, which are important air pollution sources and must be discharged after desulfurization and dust removal treatment. The traditional desulfurization and dust removal waste gas treatment device has the defects of incomplete absorption of sulfur-containing waste gas and unsatisfactory dust removal effect, and the discharged gas also has partial sulfur-containing pollutants and can cause certain pollution to air; meanwhile, the traditional desulfurization dust removal device needs to lead the waste gas to the desulfurization tower through the induced draft fan, so that the equipment cost is high and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the not enough of above-mentioned technique, the utility model provides a desulfurization dust collector for exhaust-gas treatment, aim at provide a desulfurization complete, dust removal effect good, low in equipment cost, convenient to use's desulfurization dust collector for exhaust-gas treatment moreover.

For solving the prior art problem, the utility model discloses the technical scheme who adopts is:

a desulfurization dust collector for waste gas treatment comprises a desulfurization tower, a hot blast stove, a spray tower and an exhaust fan which are arranged in parallel; the top of the desulfurizing tower is connected with an air inlet pipe, and the middle part of the desulfurizing tower is integrally provided with a plurality of groups of slurry input holes; the hot blast stove is connected with the desulfurizing tower through a hot blast pipe; the air inlet end of the exhaust fan is connected to the bottom end in the desulfurization tower through an air exhaust pipe, and the air outlet end of the exhaust fan is connected to the bottom end in the spray tower; a cloth bag type dust collector is also arranged at the joint between the exhaust fan and the air exhaust duct; and a spray head and an exhaust pipe are arranged in the spray tower.

Furthermore, one end of the hot air pipe is connected with the hot air furnace, and the other end of the hot air pipe is inserted into the tail end of the air inlet pipe in a plug-in mode.

Furthermore, one end of the air exhaust duct, which is positioned in the desulfurizing tower, is provided with a bent structure with a downward opening.

Further, the exhaust pipe is integrally connected to the top of the spray tower; the spray header is arranged in the spray tower and is positioned below the exhaust pipe.

Furthermore, the air inlet pipe and the hot air pipe are made of high-temperature resistant stainless steel materials.

The utility model has the advantages that: 1. firstly, carrying out combustion desulfurization, slurry desulfurization and spray desulfurization to complete desulfurization; 2. the dust is removed by the cloth bag type dust remover, so that the dust removal effect is good; 3. need not to set up dedicated draught fan, pull the flue gas to the desulfurizing tower through the updraft ventilator, equipment cost is low, convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: desulfurizing tower 1, hot-blast furnace 2, spray column 3, air exhauster 4, intake pipe 5, mud input hole 6, hot-blast main 7, bleed tuber pipe 8, bag house dust remover 9, shower head 10, blast pipe 11.

Detailed Description

In order to make those skilled in the art understand the technical solution of the present invention, the present invention is further analyzed with reference to fig. 1.

As shown in fig. 1, a desulfurization and dust removal device for waste gas treatment comprises a desulfurization tower 1, a hot blast stove 2, a spray tower 3 and an exhaust fan 4 which are arranged in parallel; the top of the desulfurizing tower 1 is connected with an air inlet pipe 5, the middle part of the desulfurizing tower is integrally provided with a plurality of groups of slurry input holes 6, and the slurry input holes 6 can be connected with a slurry conveying pipeline through flanges so as to input alkaline slurry into the desulfurizing tower 1; the hot blast stove 2 is connected with the desulfurizing tower 1 through a hot blast pipe 7; the air inlet end of the exhaust fan 4 is connected to the bottom end inside the desulfurizing tower 1 through an air exhaust pipe 8, and the air outlet end of the exhaust fan is connected to the bottom end inside the spray tower 3; a cloth bag type dust collector 9 is also arranged at the joint between the exhaust fan 4 and the air exhaust duct 8; the spray tower 3 is internally provided with a spray header 10 and an exhaust pipe 11.

In this embodiment, preferably, one end of the hot air pipe 7 is connected to the hot air furnace 2, and the other end is inserted into the end of the air inlet pipe 5.

In this embodiment, preferably, one end of the air exhaust duct 8 located in the desulfurization tower 1 is configured as a bent structure with a downward opening, so as to prevent mud from falling into the air exhaust duct 8.

In this embodiment, preferably, the exhaust pipe 11 is integrally connected to the top of the spray tower 3; the spray header 10 is arranged inside the spray tower 3 and is positioned below the exhaust pipe 11.

In this embodiment, preferably, the air inlet pipe 5 and the hot air pipe 7 are made of a high temperature resistant stainless steel material.

When the utility model is used, the sulfur-containing flue gas generated by ceramic firing or metallurgy enters the desulfurizing tower 1 from the air inlet pipe 5 and is mixed with the hot air of the hot air pipe 7, and as the temperature of the hot air can reach 800 plus 900 degrees, most of sulfur dioxide in the sulfur-containing flue gas can be removed by high-temperature combustion in a high-temperature hot air environment; the residual sulfur-containing flue gas enters the desulfurizing tower 1 and is mixed with alkaline slurry, and because sulfur dioxide is acidic, a large amount of sulfur dioxide can be removed by neutralization reaction after the sulfur dioxide is mixed with the slurry; finally, the residual sulfur-containing flue gas enters the spray tower 3 through the air exhaust duct 8 and the exhaust fan 4, the sulfur-containing flue gas is subjected to spray desulfurization through the desulfurizing agents (lime powder and sodium dioxide solution) sprayed by the spray header 10, and the obtained sulfur-free gas is discharged from the exhaust pipe 11. Due to the action of high-temperature hot air, slurry in the desulfurizing tower 1 is changed into particles and falls into a lower cone in the desulfurizing tower 1 so as to be cleaned subsequently; the dust entering the air exhaust duct 8 along with the flue gas can be removed by the bag type dust collector 9, so that the flue gas entering the spray tower 3 is dust-free and contains a small amount of sulfur dioxide.

The technical solutions provided by the present application are introduced in detail, and the principles and embodiments of the present application are explained herein by applying embodiments, and the descriptions of the embodiments are only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. The utility model provides a desulfurization dust collector for exhaust-gas treatment which characterized in that: comprises a desulfurizing tower, a hot blast stove, a spray tower and an exhaust fan which are arranged in parallel; the top of the desulfurizing tower is connected with an air inlet pipe, and the middle part of the desulfurizing tower is integrally provided with a plurality of groups of slurry input holes; the hot blast stove is connected with the desulfurizing tower through a hot blast pipe; the air inlet end of the exhaust fan is connected to the bottom end in the desulfurization tower through an air exhaust pipe, and the air outlet end of the exhaust fan is connected to the bottom end in the spray tower; a cloth bag type dust collector is also arranged at the joint between the exhaust fan and the air exhaust duct; and a spray head and an exhaust pipe are arranged in the spray tower.

2. The desulfurization dust-removing device for exhaust gas treatment according to claim 1, characterized in that: one end of the hot air pipe is connected with the hot air furnace, and the other end of the hot air pipe is inserted into the tail end of the air inlet pipe in a plug-in mode.

3. The desulfurization dust-removing device for exhaust gas treatment according to claim 1, characterized in that: one end of the air exhaust pipe in the desulfurizing tower is provided with a bent structure with a downward opening.

4. The desulfurization dust-removing device for exhaust gas treatment according to claim 1, characterized in that: the exhaust pipe is integrally connected to the top of the spray tower; the spray header is arranged in the spray tower and is positioned below the exhaust pipe.

5. The desulfurization dust-removing device for exhaust gas treatment according to claim 1, characterized in that: the air inlet pipe and the hot air pipe are made of high-temperature resistant stainless steel materials.