CN210814668U - Tail gas treatment system of white carbon black production device by gas phase method - Google Patents
Tail gas treatment system of white carbon black production device by gas phase method Download PDFInfo
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- CN210814668U CN210814668U CN201921510448.2U CN201921510448U CN210814668U CN 210814668 U CN210814668 U CN 210814668U CN 201921510448 U CN201921510448 U CN 201921510448U CN 210814668 U CN210814668 U CN 210814668U
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Abstract
The utility model discloses a tail gas treatment system of a white carbon black production device by a gas phase method, which comprises an absorption tower connected with a tail gas conveying pipeline, wherein a plurality of obliquely arranged tower plates are arranged in the absorption tower, a plurality of small holes are formed on the surface of the tower plates, the bottom of the absorption tower extends into the liquid level of a sewage tank, the sewage tank is connected with the liquid inlet end of the absorption tower through a circulating pipeline, a centrifugal pump is arranged on the circulating pipeline, cleaning holes are formed in the side wall of the absorption tower corresponding to each tower plate, and the cleaning holes are matched with plugs; the utility model discloses a cooperation between multistage column plate and the bilge pit can effectively reduce exhaust emissions, save raw materials, standardize the operation of jar district and improve the security, can conveniently wash the column plate through purge orifice and end cap cooperation simultaneously.
Description
Technical Field
The utility model relates to a fumed silica production technical field specifically indicates a fumed silica apparatus for producing's tail gas treatment system.
Background
The tail gas conveyed from the separation process of the white carbon black production device by the gas phase method contains a large amount of HCl and N2In addition, it also contains partial CO2、H2O、O2、SiO2And trace impurities. And absorbing a large amount of HCl in the tail gas through process water to generate a byproduct hydrochloric acid, and continuously sending the treated tail gas to an alkali washing absorption process.
At present, raw materials are conveyed to a head tank through a conveying pump, the raw materials are conveyed to a vaporizer through a regulating valve to be used for product synthesis after vaporization, and the raw material tail gas after pressure relief and the tail gas in a raw material tank area are subjected to hydrolysis absorption treatment, so that more hydrolysis suspended matters are caused and difficult to treat, and the environmental protection and economic burden are large.
Patent No. CN103708421A entitled "white carbon black tail gas treatment method and washing tower" discloses a device for treating white carbon black tail gas by using an absorption tower, then after the absorption tower treats gas, impurities are easily adhered to the surface of a tower plate, the cleaning is difficult, the whole tower body needs to be disassembled and assembled for cleaning, and the workload is large.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned not enough, provide a gas phase method white carbon black apparatus for producing's tail gas processing system to reduce exhaust emissions, material saving, standard tank field operation and improve the security, can conveniently wash the column plate simultaneously.
The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: the utility model provides a tail gas processing system of vapor phase method white carbon black apparatus for producing, includes the absorption tower of being connected with tail gas pipeline, be equipped with the column plate that polylith slope set up in the absorption tower, a plurality of apertures have been seted up on the column plate surface, in the liquid level of absorption tower bottom stretch into the bilge tank, the bilge tank passes through circulating line and is connected with absorption tower feed liquor end, be equipped with the centrifugal pump on the circulating line, all seted up the washing hole on the absorption tower lateral wall that every column plate corresponds, washing hole and end cap cooperation.
Preferably, the tail end of the tail gas conveying pipeline is transversely provided with a tail gas dispersion pipe, and the upper surface of the tail gas dispersion pipe is uniformly provided with gas dispersion holes.
Preferably, a liquid outlet of the circulating pipeline is transversely provided with a liquid dispersion pipe, and the lower surface of the liquid dispersion pipe is uniformly provided with liquid dispersion holes.
Preferably, an overflow hole is further formed in one side of the sewage tank, an overflow groove is formed below the overflow hole, the overflow groove is connected with a circulating pipeline through a pipeline, and a water replenishing pipe is arranged above the sewage tank.
Preferably, a filter screen is further arranged at the position where the sewage tank is connected with the circulating pipeline.
The utility model has the advantages that: the utility model discloses a cooperation between multistage column plate and the bilge pit can effectively reduce exhaust emissions, save raw materials, standardize the operation of jar district and improve the security, can conveniently wash the column plate through purge orifice and end cap cooperation simultaneously.
Drawings
FIG. 1 is a schematic structural diagram of a tail gas treatment system of a fumed silica production device;
FIG. 2 is an enlarged schematic view of the location of the tower of FIG. 1;
in the figure, a tail gas conveying pipeline 1, an absorption tower 2, a tower plate 3, a small hole 4, a sewage tank 5, a water replenishing pipe 5.1, a circulating pipeline 6, a centrifugal pump 7, a cleaning hole 8, a plug 9, a tail gas dispersion pipe 10, a gas dispersion hole 10.1, a liquid dispersion pipe 11, a liquid dispersion hole 11.1, an overflow hole 12, an overflow groove 13 and a filter screen 14.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1 and 2, a tail gas treatment system of a fumed silica production device comprises an absorption tower 2 connected with a tail gas conveying pipeline 1, wherein a plurality of obliquely arranged tower plates 3 are arranged in the absorption tower 2, a plurality of small holes 4 are formed in the surfaces of the tower plates 3, the bottom of the absorption tower 2 extends into the liquid level of a sewage tank 5, the sewage tank 5 is connected with the liquid inlet end of the absorption tower 2 through a circulating pipeline 6, a centrifugal pump 7 is arranged on the circulating pipeline 6, a cleaning hole 8 is formed in the side wall of the absorption tower 2 corresponding to each tower plate 3, and the cleaning hole 8 is matched with a plug 9.
Preferably, the tail end of the tail gas conveying pipeline 1 is transversely provided with a tail gas dispersion pipe 10, and the upper surface of the tail gas dispersion pipe 10 is uniformly provided with gas dispersion holes 10.1. The tail gas entering the absorption tower 2 can be effectively and uniformly distributed through the gas dispersing holes 10.1 of the tail gas dispersing pipe 10, and the phenomenon that the tower plate 3 is impacted by overlarge gas flow or the absorption of the tail gas is uneven is avoided.
Preferably, a liquid outlet of the circulating pipeline 6 is transversely provided with a liquid dispersion pipe 11, and the lower surface of the liquid dispersion pipe 11 is uniformly provided with liquid dispersion holes 11.1. The liquid holes 11.1 of the liquid dispersion pipe 11 can uniformly disperse the liquid entering the absorption tower 2 and then fall into the tower plate 3, so that the contact area between the liquid dispersion pipe and the tail gas is increased, and the absorption efficiency is improved.
Preferably, an overflow hole 12 is further formed in one side of the sewage tank 5, an overflow groove 13 is formed below the overflow hole 12, the overflow groove 13 is connected with the circulating pipeline 6 through a pipeline, and a water replenishing pipe 5.1 is arranged above the sewage tank 5. The bottom of the absorption tower 2 extends into the liquid level of the sewage tank 5 to form a liquid seal, so that the tail gas can be prevented from directly escaping from the bottom of the absorption tower 2, water can be supplemented into the sewage tank 5 through the water supplementing pipe 5.1, the height of the overflow hole 12 can be set to be higher than the bottom of the absorption tower 2, when the liquid level exceeds the height of the overflow hole 12, the liquid can overflow from the overflow hole 12 and then flows into the overflow groove 13, at the moment, the liquid level in the sewage tank 5 can be determined to be higher than the bottom of the absorption tower 2, manual operation is not needed all the time, only the increase of the liquid in the overflow groove 13 needs to be observed, when the liquid in the overflow groove 13 is accumulated to a certain amount, a valve on a pipeline can be opened, and then the liquid in the overflow groove 13 can be pumped into the absorption tower 2 through the centrifugal pump 7.
Preferably, a filter screen 14 is further provided at a position where the sump 5 is connected to the circulation line 6. The filter screen 14 can effectively prevent the particulate matter in the sump 5 from being drawn into the centrifugal pump 7 and causing clogging.
The working principle of the embodiment is as follows:
in the white carbon black production process, part of non-condensable tail gas enters an absorption tower 2 made of glass fiber reinforced plastic from a tail gas conveying pipeline 1, a plurality of tower plates 3 are arranged inside the absorption tower 2, the structure is a layered multi-stage plate hole structure, and water solution absorption circulation is carried out through a centrifugal pump 7 (a fluorine-lined centrifugal pump), so that the water solution in the absorption tower 3 is fully combined with the tail gas to generate hydrolysis reaction, the problem that the water solution cannot be fully hydrolyzed caused by spraying is avoided, meanwhile, the granularity of hydrolysate is reduced (the particle value of the hydrolysate absorbed by the tail gas tower is reduced from 5 mm to 10mm to 1 mm to 3 mm), the economic effect is more favorable for selling, in addition, the tail gas is weak in acidity and is not beneficial to discharging and environment protection, and the pressure for environment protection can be reduced by neutralizing soda in a sewage tank 5 until the hydrolysate is neutral. If the small hole 4 of column plate 3 takes place to block up and other problems at the circulation absorption in-process, can dismantle end cap 9 of washing hole 8 and wash the work of column plate 3, guaranteed that the device normally operates and absorbs, this mode is simple high-efficient, and tail gas after the processing is discharged from the absorption tower 3 top, and the liquid that is located sewage tank 5 can discharge to next process through the drain pipe of bottom and recycle or relevant processing. In this embodiment, the plug 9 may be a plug-like structure or may be connected to the cleaning hole 8 by a bolt.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (5)
1. The utility model provides a tail gas processing system of vapor phase method white carbon black apparatus for producing, includes absorption tower (2) of being connected with tail gas conveying line (1), its characterized in that: be equipped with column plate (3) that the polylith slope set up in absorption tower (2), a plurality of apertures (4) have been seted up on column plate (3) surface, in absorption tower (2) bottom stretched into the liquid level of bilge pit (5), bilge pit (5) were connected with absorption tower (2) feed liquor end through circulation pipeline (6), be equipped with centrifugal pump (7) on circulation pipeline (6), all seted up on the absorption tower (2) lateral wall that every column plate (3) corresponds wash-off hole (8), wash-off hole (8) and end cap (9) cooperation.
2. The tail gas treatment system of the fumed silica production device according to claim 1, which is characterized in that: the tail end of the tail gas conveying pipeline (1) is transversely provided with a tail gas dispersion pipe (10), and the upper surface of the tail gas dispersion pipe (10) is uniformly provided with gas dispersion holes (10.1).
3. The tail gas treatment system of the fumed silica production device according to claim 1, which is characterized in that: the liquid outlet of the circulating pipeline (6) is transversely provided with a liquid dispersion pipe (11), and liquid dispersion holes (11.1) are uniformly formed in the lower surface of the liquid dispersion pipe (11).
4. The tail gas treatment system of the fumed silica production device according to claim 1, which is characterized in that: an overflow hole (12) is further formed in one side of the sewage tank (5), an overflow groove (13) is formed below the overflow hole (12), the overflow groove (13) is connected with the circulating pipeline (6) through a pipeline, and a water replenishing pipe (5.1) is arranged above the sewage tank (5).
5. The tail gas treatment system of the fumed silica production device according to claim 1, which is characterized in that: a filter screen (14) is arranged at the position where the sewage tank (5) is connected with the circulating pipeline (6).
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CN115038507A (en) * | 2020-08-24 | 2022-09-09 | 富士电机株式会社 | Exhaust gas purification device |
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CN115038507A (en) * | 2020-08-24 | 2022-09-09 | 富士电机株式会社 | Exhaust gas purification device |
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Address after: 66-2 No. 443007 Hubei city of Yichang province located in Xiaoting District Road Patentee after: Hubei HuiFu nano materials Co., Ltd Address before: 443007 66-2, Lanting Avenue, Lanting District, Yichang City, Hubei Province Patentee before: YICHANG HUIFU SILICON MATERIAL Co.,Ltd. |