CN216223601U

CN216223601U - Sintering flue gas VOC discharges and administers facility

Info

Publication number: CN216223601U
Application number: CN202121423237.2U
Authority: CN
Inventors: 江艳慧
Original assignee: Shandong Shuifa Resources Recycling Technology Co ltd
Current assignee: Shandong Shuifa Resources Recycling Technology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-04-08
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a sintering flue gas VOC emission treatment facility which comprises a fan, a treatment box, a heat exchanger and a chimney, wherein the fan, the treatment box, the heat exchanger and the chimney are sequentially connected through an air duct, the treatment box comprises an upper box body and a lower box body, a filter chamber, a spray chamber, a flue, an adsorption chamber, a heat insulation section and a combustion chamber are sequentially arranged in the upper box body from the position close to the fan, the filter chamber is connected with the fan, a first exhaust pipe is arranged at the top of the combustion chamber, and the first exhaust pipe is connected with the heat exchanger through the air duct; the top of the adsorption chamber is connected with the chimney and the first exhaust pipe through the second exhaust pipe and the desorption pipe respectively, the lower part of the adsorption chamber is communicated with the combustion chamber through the sub-flue, and a circulating water tank corresponding to the spray chamber is installed in the lower box body. The utility model has the advantages of compact mechanism, convenient installation and use and good treatment effect on waste flue gas.

Description

Sintering flue gas VOC discharges and administers facility

Technical Field

The utility model relates to the technical field of waste flue gas emission, in particular to a sintering flue gas VOC emission treatment facility.

Background

VOC is the english abbreviation of volatile organic compounds, and the definition in the environmental protection sense refers to an active class of volatile organic compounds, i.e., a class of volatile organic compounds that can cause harm. When the VOC in a room reaches a certain concentration, symptoms such as headache, nausea, vomiting, hypodynamia and the like can be caused, and even convulsion and coma can be caused in severe cases, so that the liver, the kidney, the brain and the nervous system are injured, and serious consequences such as hypomnesis and the like are caused. The treatment methods for such gases mainly include activated carbon adsorption, combustion treatment, biological treatment, etc., but these methods have unsatisfactory treatment effects, large volume of related equipment, and relatively dispersed treatment modules, and are limited in installation and use.

Disclosure of Invention

The utility model provides a sintering flue gas VOC emission treatment facility in order to make up the defects of the prior art.

The utility model is realized by the following technical scheme:

a sintering flue gas VOC emission treatment facility comprises a fan, a treatment box, a heat exchanger and a chimney which are sequentially connected through an air duct, wherein the treatment box comprises an upper box body and a lower box body, a filter chamber, a spray chamber, a flue, an adsorption chamber, a heat insulation section and a combustion chamber are sequentially arranged in the upper box body from the position close to the fan, the filter chamber is connected with the fan, a first exhaust pipe is arranged at the top of the combustion chamber, and the first exhaust pipe is connected with the heat exchanger through the air duct; the top of the adsorption chamber is connected with the chimney and the first exhaust pipe through the second exhaust pipe and the desorption pipe respectively, the lower part of the adsorption chamber is communicated with the combustion chamber through the sub-flue, and a circulating water tank corresponding to the spray chamber is installed in the lower box body.

Still install cooling fan in the lower box, cooling fan passes through the pipeline and is connected with the adsorption chamber.

The adsorption chamber comprises a first adsorption chamber and a second adsorption chamber which have the same structure and are provided with desorption pipes and second exhaust pipes at the tops, and the first adsorption chamber and the second adsorption chamber are respectively communicated with the combustion chamber through a smoke separation channel and are respectively connected with the cooling fan through pipelines.

The heat exchanger comprises a shell, a water curtain is arranged inside the shell, the top of the water curtain is connected with a water replenishing pump through a water distribution pipe, the bottom of the water curtain is connected with a water collecting pipe, a flue gas inlet is formed in the bottom of the shell, and a flue gas outlet is formed in the top of the shell.

And a vertical filter screen is arranged in the filter chamber.

And zeolite is arranged in the adsorption chamber.

The utility model has the following technical effects:

the waste gas is firstly filtered by a filter screen to remove larger particles, then is sprayed for dedusting, simultaneously removes water-soluble harmful substances, and then is enriched by zeolite, the enriched harmful substances are subjected to combustion treatment after desorption, and the VOC (volatile organic compounds) in the flue gas is treated more thoroughly; the high-temperature waste gas is subjected to waste heat recovery and reutilization in a heat exchanger; the whole equipment is concentrated in one box body, and the mechanism is tight and convenient to install and use.

Drawings

The utility model will be further described with reference to the accompanying drawings.

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

FIG. 2 is a schematic sectional view A-A.

In the figure, 1-air duct, 2-fan, 3-treatment box, 4-water pump chamber, 5-circulating pump, 6-circulating water pool, 7-fan chamber, 8-main air duct, 8.1-sub air duct, 9-cooling fan, 10-water collecting pipe, 11-water curtain, 12-heat exchanger, 13-water distributing pump, 14-chimney, 15-retreatment pipe, 16-combustion chamber, 17-first exhaust pipe, 18-heat insulation section, 19-desorption pipe, 20-second exhaust pipe, 21-first switch valve, 22-adsorption chamber, 22.1-first adsorption chamber, 22.2-second adsorption chamber, 23-flue, 24-demister, 25-spray header, 26-filter chamber, 27-filter screen, 28-zeolite, 29-branch flue.

Detailed Description

The following are only embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention are intended to be covered by the scope of the present invention.

The words "front", "back", "inner" and "outer" used in this invention to describe the directional relationship are for convenience of description of the embodiments only and should not be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The fixed connection or installation mode includes but is not limited to welding, spiro union, joint, interference fit, integrated into one piece.

Fig. 1 and 2 show an embodiment of the present invention. The embodiment provides a sintering flue gas VOC discharges and administers facility, include fan 2, processing case 3, heat exchanger 12 and chimney 14 that connect gradually through wind channel 1, processing case 3 includes box and lower box, is equipped with filter chamber 26, shower room, flue 23, adsorption chamber 22 in the upper box in proper order from being close to fan 2 side to keeping away from fan 2 side, thermal-insulated section 18, combustion chamber 16, wherein filter chamber 26 is connected with fan 2, and first blast pipe 17 at the top of combustion chamber 16 passes through the wind channel and is connected with the heat exchanger.

Specifically, a vertical filter screen 27 is installed in the filter chamber 26, and at least two filter screens 27 are installed; the filter chamber 26 is communicated with the spray chamber through a spray chamber air inlet at the lower part of the spray chamber; the back two groups of spray heads 25 and the two groups of demisters 24 are arranged in the spray chamber from bottom to top, the spray chamber is connected with a flue 23 through a spray chamber air outlet at the upper part, the flue 23 is communicated with an adsorption chamber air inlet at the lower part of the adsorption chamber 22, and a second switch valve is arranged at the adsorption chamber air inlet.

The lower part of the adsorption chamber 22 is also communicated with the combustion chamber through a sub-flue 29, and the sub-flue 29 is provided with a regulating valve; zeolite is installed in the middle of the adsorption chamber 22, the top of the adsorption chamber 22 is connected to the chimney 14 through a second exhaust pipe 20, and a first on-off valve 21 is installed on the second exhaust pipe 20. The top of the adsorption chamber 22 is also connected with the first exhaust pipe 17 through a desorption pipe 19, and a third on-off valve is installed on the desorption pipe 19.

A water pump chamber 4, a circulating water tank 6 and a fan chamber 7 are arranged in the lower box body, wherein the circulating water tank 6 corresponds to the spray chamber and is separated by a water leakage plate, a circulating pump 5 is arranged in the water pump chamber 4, the input end of the circulating pump 5 is connected with the circulating water tank 6, and the output end of the circulating pump 5 is connected with a spray head 25; a cooling fan 9 is arranged in the fan chamber 7, and the cooling fan 9 is connected with the adsorption chamber 22 through a pipeline.

As shown in fig. 2, the adsorption chamber 22 includes a first adsorption chamber 22.1 and a second adsorption chamber 22.2 having the same structure, which are respectively communicated with the combustion chamber 16 through a branch flue 29 in which a regulating valve is installed. The first adsorption chamber 22.1 and the second adsorption chamber 22.2 are respectively connected with a main air pipe 8 arranged at the output end of the cooling fan 9 through sub air pipes 8.1, and a fourth switch valve is arranged on the air pipe 8.1. The tops of the first adsorption chamber 22.1 and the second adsorption chamber 22.2 are provided with a desorption pipe 19 and a second exhaust pipe 20.

The heat exchanger 12 comprises a shell, a water curtain 11 is arranged inside the shell, the top of the water curtain 11 is connected with a water replenishing pump 13 through a water distribution pipe, the bottom of the water curtain 11 is connected with a water collecting pipe 10, a flue gas inlet of the heat exchanger 12 is located at the bottom of the shell, a flue gas outlet is located at the top of the shell, water and hot flue gas flow in a countercurrent mode to complete heat exchange, and the heat exchange speed between the water curtain and the hot flue gas is higher.

The device also comprises a reprocessing pipe 15 provided with a fifth switch valve, wherein the first end of the reprocessing pipe 15 is connected with the air inlet of the fan, and the second end of the reprocessing pipe 15 is connected with the flue 1 between the heat exchanger 15 and the chimney 14.

When the device is used, smoke is sent into the filter chamber 26 by the fan 2 to remove particles with larger diameters, then enters the spray chamber for spray dedusting and removing water-soluble harmful substances, then enters the first adsorption chamber 22.1 for adsorption, meanwhile, a small amount of smoke directly enters the combustion chamber 16 for combustion, at the moment, the first switch valve 21 is opened, the third switch valve and the fourth switch valve corresponding to the first adsorption chamber 22.1 are closed, and the smoke adsorbed by the zeolite 28 is directly discharged from a chimney; when the zeolite in the first adsorption chamber 22.1 needs to be desorbed, the first switch valve 21 is closed, the third switch valve is opened, and the flue gas is switched to the second adsorption chamber 22.2; and the regulating valve corresponding to the first adsorption chamber 22.1 is opened to the maximum; part of the hot flue gas enters the adsorption chamber to desorb the zeolite 28, and harmful substances enter the combustion chamber 16 through a sub-flue 29; and after desorption, the third switch valve is closed, the first switch valve 21 and a fourth switch valve corresponding to the first adsorption chamber 22.1 are opened, zeolite is cooled, the fourth switch valve is closed after cooling, the flue gas is switched back to the first adsorption chamber 22.1, and zeolite in the second adsorption chamber 22.2 is desorbed. If it is detected at the chimney that the emissions do not meet the standard, part of the flue gases can be recycled back to the treatment tank 3 through the reprocessing pipe 15.

Claims

1. The utility model provides a sintering flue gas VOC discharges administers facility which characterized in that: the device comprises a fan (2), a treatment box (3), a heat exchanger (12) and a chimney (14) which are sequentially connected through an air duct (1), wherein the treatment box (3) comprises an upper box body and a lower box body, a filtering chamber (26), a spray chamber, a flue (23), an adsorption chamber (22), a heat insulation section (18) and a combustion chamber (16) are sequentially arranged in the upper box body from the position close to the fan (2), the filtering chamber (26) is connected with the fan (2), a first exhaust pipe (17) is installed at the top of the combustion chamber (16), and the first exhaust pipe (17) is connected with the heat exchanger through the air duct (1); the top of adsorption chamber (22) is passed through second blast pipe (20), is taken off adsorption tube (19) and is connected with chimney (14), first blast pipe (17) respectively, the lower part of adsorption chamber (22) is still through dividing flue (29) and combustion chamber (16) intercommunication, install circulation pond (6) that correspond with the shower room in the lower box.

2. The sintering flue gas VOC emission abatement facility of claim 1, wherein: still install cooling fan (9) in the lower box, cooling fan (9) are connected with adsorption chamber (22) through the pipeline.

3. The sintering flue gas VOC emission abatement facility of claim 2, wherein: the adsorption chamber (22) comprises a first adsorption chamber (22.1) and a second adsorption chamber (22.2) which are identical in structure and provided with desorption pipes (19) and second exhaust pipes (20) at the tops, wherein the first adsorption chamber (22.1) and the second adsorption chamber (22.2) are respectively communicated with the combustion chamber (16) through a sub-flue (29) and are respectively connected with the cooling fan (9) through pipelines.

4. The sintering flue gas VOC emission abatement facility of claim 3, wherein: the heat exchanger (12) comprises a shell, a water curtain (11) is arranged inside the shell, the top of the water curtain (11) is connected with a water replenishing pump (13) through a water distribution pipe, the bottom of the water curtain is connected with a water collecting pipe (10), a flue gas inlet is formed in the bottom of the shell, and a flue gas outlet is formed in the top of the shell.

5. The sintering flue gas VOC emission abatement facility of claim 4, wherein: and a vertical filter screen (27) is arranged in the filter chamber (26).

6. The facility for treating emission of VOC from sintering flue gas as claimed in any one of claims 1 to 5, wherein: zeolite (28) is installed in the adsorption chamber (22).