Waste gas treatment system and its treatment process in the production of dipped cord fabric

Abstract

The present invention discloses a waste gas treatment system and a treatment process in the production of dipped cord fabrics. The waste gas generated by the dipped cord fabric dipping system is purified by a low-concentration waste gas treatment system or a high-concentration waste gas treatment system; the low-concentration waste gas treatment system and the high-concentration waste gas treatment system are both connected to an exhaust pipe at the end through a gas delivery pipeline to discharge the treated purified gas. The system and process collect and treat the waste gas generated in the production process of dipped cord fabrics. During the collection process, the waste gas outlet is sealed and collected, which completely avoids the leakage of waste gas during the collection process, avoids the impact of the leaked waste gas on the environment during the collection process, and comprehensively collects and treats the waste gas; the system has reasonable configuration, convenient control, high treatment efficiency, low consumption of energy resources, and the removal effect greatly exceeds the requirements of the corresponding odor pollutant emission standards.

Description

Technical Field

[0001] The present invention belongs to the technical field of industrial waste treatment, and specifically relates to a waste gas treatment system and a treatment process in the production of dipped tire cord fabrics, and specifically relates to a waste gas treatment system generated in the production process of dipped tire cord fabrics and a process for treating the waste gas using the system. Background Art

[0002] As the skeleton material of tires, dipped cord fabric is firmly bonded with rubber to withstand the forces from inside and outside the rubber products, thereby improving the strength of rubber products, limiting their deformation, and maintaining dimensional stability. It is an indispensable product in the development of modern industry.

[0003] In the production process of dipped cord fabric, the dip of cord fabric is usually to impregnate the white fabric obtained in the early stage with resin and other organic matter (the temperature is generally room temperature), and then dry (generally at about 130℃~170℃), draw (generally at 210℃~245℃), set (generally at 210℃~245℃), cool (generally at 40℃~70℃) and other treatment processes. In this production process, due to the presence of organic matter and high temperature treatment, waste gas containing volatile organic compounds (VOC) will be generated. Volatile organic compounds, according to the definition of the World Health Organization, are compounds with a boiling point of 50~250℃, and a class of organic compounds that exist in the air in the form of steam at room temperature. The hazards of volatile organic compounds are obvious. When indoor VOC exceeds a certain concentration, people will feel headache, nausea, weakness in the limbs, etc. in a short time. VOC will cause damage to the liver, brain, nervous system, etc. Therefore, the VOCs in the exhaust gas must be treated to meet the standards before they can be discharged into the air to avoid causing harm to the environment, human body, etc.

[0004] In the production system of dipped cord fabric, top suction is currently used for collection and treatment. In this process, the exhaust gas outlet cannot be completely closed, otherwise the interference of the exhaust gas treatment system induced draft fan will cause system parameters to be unstable, seriously affecting the quality of dipped cord fabric products. Therefore, when the exhaust gas treatment device is used for treatment, the treatment is not thorough, the exhaust gas is not completely collected, and the uncollected exhaust gas is directly discharged into the atmosphere, causing great harm to the environment. Moreover, a single system is used for treatment throughout the treatment process, and it is difficult to meet the standards when the exhaust gas concentration is high, and it is still a great harm to the environment when it is finally discharged into the air. Summary of the invention

[0005] The technical problem addressed by the present invention is that in the prior art, the waste gas generated during the production of dipped cord fabric is collected and treated by top suction, and the waste gas outlet cannot be completely sealed during the collection process, causing some untreated waste gas to be discharged into the air, causing harm to the health of the surrounding people and the environment. In addition, the treatment system is relatively simple, and it is unable to treat waste gas with high concentration to meet the standards; and when a part of the system fails, the entire system cannot operate normally, causing the interruption of continuous production.

[0006] In order to solve the above problems, the present invention provides a waste gas treatment system and treatment process in the production of dipped tire cord fabric. The system can comprehensively collect and treat the waste gas generated in the production process of dipped tire cord fabric, and can deeply treat both low-concentration and high-concentration waste gas. After treatment, various harmful substances in the gas are significantly reduced and fully meet the standards. The system is simple to operate and has low treatment cost.

[0007] The present invention is achieved through the following technical solutions

[0008] A waste gas treatment system in the production of dipped cord fabrics, comprising a dipped cord fabric production system, wherein the dipped cord fabric production system comprises a low-concentration waste gas generation area and a high-concentration waste gas generation area, and the waste gas treatment system further comprises

[0009] A low-concentration waste gas treatment system connected to the low-concentration waste gas generation area is used to treat the low-concentration waste gas discharged from the tire cord fabric dipping system;

[0010] and a high-concentration waste gas treatment system connected to the high-concentration waste gas generation area, used to treat the high-concentration waste gas discharged from the tire cord fabric dipping system;

[0011] The low-concentration waste gas treatment system and the high-concentration waste gas treatment system are both connected to the exhaust pipe through the gas delivery pipeline at the end to discharge the treated purified gas.

[0012] Furthermore, the low-concentration exhaust gas treatment system includes a first cyclone plate tower that can be disconnected from the low-concentration exhaust gas generation area, a first baffle filter connected to the first cyclone plate tower, a first excimer ultraviolet light oxidation device connected to the first baffle filter, a first centrifugal fan connected to the first excimer ultraviolet light oxidation device, and an exhaust pipe connected to the first centrifugal fan;

[0013] The high-concentration exhaust gas treatment system includes a third cyclone plate tower that can be cut off from the high-concentration exhaust gas generation area, a second baffle filter connected to the third cyclone tower, a packing tower device connected to the second baffle filter, a second excimer ultraviolet light oxidation device connected to the packing tower device, a second centrifugal fan connected to the second excimer ultraviolet light oxidation device, and an exhaust chimney connected to the second centrifugal fan.

[0014] Furthermore, a second cyclone plate tower is provided between the first cyclone plate tower and the first baffle filter;

[0015] The top outlet of the first cyclone plate tower is connected to the inlet at the bottom edge of the second cyclone plate tower through a gas delivery pipeline, and the top outlet of the second cyclone plate tower is connected to the baffle filter through a gas delivery pipeline.

[0016] Furthermore, the first cyclone plate tower comprises a first cyclone plate tower body and a first cyclone plate tower circulating water tank arranged on the outer side of the first cyclone plate tower body; the cyclone plate tower body and the cyclone plate tower circulating water tank are connected through a liquid pipeline arranged at the bottom edge;

[0017] A circulating liquid outlet is provided at the bottom edge of the first cyclone plate tower circulating water tank, and the circulating liquid outlet can be disconnected from the first cyclone plate tower circulating pump a through a delivery pipeline, and the first cyclone plate tower circulating pump a can be disconnected from the first spray device arranged in the cyclone plate tower body through a delivery pipeline; the circulating liquid outlet can also be disconnected from the first cyclone plate tower circulating pump b through a delivery pipeline, and the first cyclone plate tower circulating pump b can be disconnected from the second spray device arranged in the cyclone plate tower body through a delivery pipeline; an overflow port is also provided in the upper middle part of the side wall of the first cyclone plate tower circulating water tank for controlling the liquid level in the first cyclone plate tower circulating water tank;

[0018] The second cyclone plate tower and the third cyclone plate tower have the same structure as the first cyclone plate tower;

[0019] The packed tower device comprises a packed tower body and a packed tower circulating water tank arranged on one side of the outside of the packed tower; the packed tower body and the packed tower circulating water tank are connected through a liquid pipeline arranged at the bottom edge;

[0020] A circulating liquid outlet is provided at the bottom edge of the circulating water tank of the packed tower; the circulating liquid outlet is disconnected from the first packed tower circulating pump through a delivery pipeline, and the first packed tower circulating pump is disconnected from the first spray device arranged in the packed tower through a delivery pipeline; the circulating liquid outlet is also disconnected from the second packed tower circulating pump through a delivery pipeline, and the second packed tower circulating pump is disconnected from the second spray device arranged in the packed tower through a delivery pipeline;

[0021] An overflow port is also provided in the middle and upper part of the side wall of the circulating water tank of the packing tower for controlling the liquid level in the circulating water tank of the cyclone plate tower.

[0022] Further, the system also includes an activated carbon filter box;

[0023] The gas outlets of the first excimer ultraviolet oxidation device and the second excimer ultraviolet oxidation device are disconnectably connected to the gas inlet of the activated carbon filter box, and the gas outlet of the activated carbon filter box is disconnectably connected to the first centrifugal fan and the second centrifugal fan through a gas delivery pipeline.

[0024] Furthermore, the system also includes an industrial water storage tank to provide spray water for the cyclone plate tower and the packed tower; and also includes a sewage treatment system, and the wastewater generated by the low-concentration waste gas treatment system and the high-concentration waste gas treatment system is transported to the sewage treatment system through a delivery pipeline for purification treatment;

[0025] The sewage treatment system and the industrial water storage tank can be disconnected.

[0026] A method for treating waste gas using the waste gas treatment system, the method comprising the following steps:

[0027] The waste gas generated in the low-concentration waste gas generating area and the high-concentration waste gas generating area of ​​the dipped cord fabric production system is treated by the low-concentration waste gas treatment system and the high-concentration waste gas treatment system respectively. The purified gas obtained after the treatment is discharged from the exhaust pipe.

[0028] The method for treating waste gas,

[0029] The waste gas generated in the low-concentration waste gas generation area of ​​the dipped cord fabric production system is purified through the gas delivery pipeline in sequence through the first cyclone plate tower, the second cyclone plate tower, the first baffle filter, the first excimer ultraviolet light oxidation device, the first centrifugal fan, and the exhaust pipe, and then discharged after purification;

[0030] The waste gas generated in the low-concentration waste gas generating area of ​​the dipped cord fabric production system is purified through the gas transmission pipeline, and the high-concentration waste gas passes through the third cyclone plate tower, the second baffle filter, the packing tower, the second excimer ultraviolet oxidation device, the second centrifugal fan, and the exhaust pipe in sequence, and is discharged after purification.

[0031] The method for treating waste gas,

[0032] The temperature of the VOC waste gas generated by the dipped cord fabric production system is 80-230°C;

[0033] When using low-concentration exhaust gas system for treatment, the flow rate of exhaust gas is 34000~40000m 3 / h;

[0034] When using high-concentration exhaust gas system for treatment, the flow rate of exhaust gas is 28000~32000m 3 / h.

[0035] The high-concentration waste gas and low-concentration waste gas mainly contain gases such as ammonia, benzene, toluene, xylene, non-methane total hydrocarbons, ozone, etc.

[0036] The dipped cord fabric production system involves dipping (room temperature), drying (general temperature is about 130℃~170℃), stretching (general temperature is 210℃~245℃), shaping (general temperature is 210℃~245℃), and cooling (general temperature is 40℃~70℃). The drying area and cooling area are low-concentration exhaust gas generating areas, while the stretching area and shaping area are high-concentration exhaust gas generating areas.

[0037] The high-concentration waste gas described in this application refers to waste gas with a higher odor concentration, wherein the odor concentration is 17000-35000 (dimensionless); the low-concentration waste gas refers to waste gas with a lower odor concentration, wherein the odor concentration is 2000-10000 (dimensionless).

[0038] The present invention has the following positive beneficial effects

[0039] The system collects and treats the VOC waste gas generated during the production process of dipped cord fabrics. During the collection process, the waste gas outlet is sealed and collected, which completely avoids the leakage of waste gas during the collection process and the impact of leaked waste gas on the environment during the collection and treatment process, and comprehensively collects and treats the waste gas;

[0040] The system uses a high-concentration VOC waste gas treatment system and a low-concentration VOC treatment system to simultaneously treat VOC waste gases of different concentrations in different areas during the production process of dipped cord fabrics. The high-concentration VOC waste gas treatment system is used to collect and post-process the waste gas with a high VOC content, and the low-concentration VOC waste gas treatment system is used to collect and process the waste gas with a low concentration, which reduces the consumption of waste gas treatment and achieves high-efficiency treatment of VOC waste gas. Moreover, when one of the systems fails, the other system can still process the VOC waste gas, and the waste gas treatment will not be stopped due to system failure, which has a good practical application effect.

[0041] In this treatment process, the waste gas generated in different areas of the dipped cord fabric production system is collected separately. The gas in the high-concentration waste gas generation area is treated by a high-concentration treatment system, and the gas in the low-concentration waste gas generation area is treated by a low-concentration treatment system, which greatly improves the waste gas treatment effect; speeds up the waste gas treatment efficiency, reduces the pressure bearing capacity, corrosion resistance and other performance requirements of a large amount of waste gas on a single system, increases the service life of the system, and reduces the overall consumption of energy resources;

[0042] The system uses a cyclone plate tower and a packed tower to efficiently treat waste gas. The baffle filter box can reasonably remove the glue residue and avoid the risk of equipment blockage. It can also remove foam and improve the treatment effect of waste gas. The filter device is easy to disassemble, replace and clean, simple to maintain and easy to use, which further improves the treatment efficiency of the entire process. The glue residue filtered by the device has excellent properties such as light weight, good thermal insulation effect, good waterproof performance, good moisture-proof performance, etc. It has a good application effect, while reducing environmental pollution, it also recycles resources to a high degree.

[0043] The process has reasonable configuration, convenient control, high processing efficiency, low consumption of energy resources, and no need to add any reagents during the treatment process, which reduces the treatment cost. It can efficiently remove pollutants such as volatile organic compounds, hydrogen sulfide, benzene series, thiols, and various odors, with a deodorization efficiency of more than 95%, and the removal effect greatly exceeds the requirements of the corresponding odor pollutant emission standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is one of the structural schematic diagrams of the waste gas treatment system in the production of the dipped cord fabric;

[0045] Figure 2 This is the second schematic diagram of the exhaust gas treatment system in the production of the dipped cord fabric;

[0046] Figure 3 The third schematic diagram of the structure of the waste gas treatment system in the production of the dipped cord fabric;

[0047] Figure 4 This is the fourth schematic diagram of the structure of the waste gas treatment system in the production of the dipped cord fabric;

[0048] Figure 5 It is a structural schematic diagram of a cyclone plate tower device;

[0049] Figure 6 It is a structural schematic diagram of a packed tower device;

[0050] Figure 7-1 It is a structural schematic diagram of a baffle filter device;

[0051] Figure 7-2 is a top view schematic diagram of a baffle filtration device;

[0052] Figure 7-3 It is one of the cross-sectional schematic diagrams of the baffle filter device;

[0053] Figure 7-4 The second cross-sectional schematic diagram of the baffle filter device;

[0054] Figure 7-5 A diagram showing the buckling state of the U-shaped groove of the baffle filter device;

[0055] Figure 8 This is one of the schematic diagrams of the waste gas treatment system in the production of the dipped cord fabric;

[0056] Fig. 9 The second schematic diagram of the waste gas treatment system in the production of the dipped cord fabric;

[0057] The meanings of the symbols in the figure are as follows: 1 represents the first cyclone plate tower device, 2 represents the second cyclone plate tower device, 3 represents the first baffle filter, 4 represents the first excimer ultraviolet light oxidation device, 5 represents the first centrifugal fan, 6 represents the exhaust pipe, 7 represents the third cyclone plate tower device, 8 represents the second baffle filter, 9 represents the packed tower device, 10 represents the second excimer ultraviolet light oxidation device, 11 represents the second centrifugal fan, 12 represents the industrial water storage tank, 13 represents the sewage treatment system, and 14 represents the activated carbon filter box;

[0058] 101 represents the first cyclone plate tower body, 102 represents the first cyclone plate tower circulating water tank, 103 represents the first cyclone plate tower circulating pump a, 104 represents the first cyclone plate tower first spraying device, 105 represents the first cyclone plate tower circulating pump b, 106 represents the first cyclone plate tower second spraying device, 107 represents the first cyclone plate tower float valve; 301 represents the gas inlet, 302 represents the gas outlet, 303 represents the opening a, 304 represents the opening b, 305 represents the opening c, 306 represents the chute a, 307 represents the chute b, 308 represents the chute c , 309 represents the first porous filter plate, 301 represents the gas guide plate, 3101 represents the U-shaped groove, 311 represents the second porous filter plate, 312 represents the defoaming plate, 313 represents the sealing cover of opening a, 314 represents the sealing cover of opening b, and 315 represents the sealing cover of opening c; 901 represents the packing tower body, 902 represents the packing tower circulating water tank, 903 represents the first packing tower circulating pump, 904 represents the first packing tower spraying device, 905 represents the second packing tower circulating pump, 906 represents the second spraying device of the packing tower, and 907 represents the packing tower float valve. DETAILED DESCRIPTION

[0059] In order to facilitate the understanding of the technical solution of the present invention, the technical solution of the present invention is described in more detail below through specific implementation methods, but it is not intended to limit the protection scope of the present invention. Unless otherwise specified, the following devices and equipment can be devices that are well known to those skilled in the art.

[0060] In the production process of dipped cord fabric, the white grey fabric produced in the early stage is dipped (room temperature), dried (generally at a temperature of about 130°C to 170°C), drawn (generally at a temperature of 210°C to 245°C), shaped (generally at a temperature of 210°C to 245°C), and cooled (generally at a temperature of 40°C to 70°C) to obtain dipped cord fabric; in this process, the waste gas concentration is high under the condition of high temperature, and the waste gas concentration is low under the condition of low temperature. Therefore, the present application defines the drying area and cooling area as low-concentration waste gas generation areas, and the drawing area and shaping area as high-concentration waste gas generation areas. The treatment is carried out through two systems respectively, with good treatment effect, low energy consumption and simple operation.

[0061] like Figure 1 As shown, the present invention provides an exhaust gas treatment system in the production of dipped tire cord fabrics, including a dipped tire cord fabric production system, wherein the dipped tire cord fabric production system includes a low-concentration exhaust gas generation area and a high-concentration exhaust gas generation area, and the exhaust gas treatment system also includes

[0062] A low-concentration waste gas treatment system connected to the low-concentration waste gas generation area is used to treat the low-concentration waste gas discharged from the tire cord fabric dipping system;

[0063] and a high-concentration waste gas treatment system connected to the high-concentration waste gas generation area, used to treat the high-concentration waste gas discharged from the tire cord fabric dipping system;

[0064] The low-concentration waste gas treatment system and the high-concentration waste gas treatment system are both connected to the exhaust pipe through the gas delivery pipeline at the end to discharge the treated purified gas.

[0065] The system is directly connected to the exhaust gas discharge system of the dipped tire cord fabric in a closed manner, avoiding the pollution of the environment caused by the emission of exhaust gas to the outside world. The system is connected to two areas of different exhaust gas concentrations in the production of dipped tire cord fabric through two systems, respectively, so that the system can treat exhaust gas of different concentrations generated in the production of dipped tire cord fabric. The low-concentration treatment system is used for the low-concentration treatment system, and the high-concentration treatment system is used for in-depth treatment. When the same system is used for treatment, it may not only result in incomplete treatment of high-concentration treatment, but also in additional consumption of treatment resources and energy for low-concentration treatment. In addition, when the system fails, the treatment must be stopped, affecting the overall production. Therefore, the treatment system described in the present application improves the treatment efficiency and reduces the consumption of energy resources. When a system fails, it does not affect the continued production of the overall system, and has a good practical use effect.

[0066] In another embodiment of the present invention, a waste gas treatment system in the production of dipped tire cord fabric is provided, wherein the low-concentration waste gas treatment system comprises a first cyclone plate tower that can be disconnected from the low-concentration waste gas generation area of ​​the dipped tire cord fabric production system, a first baffle filter connected to the first cyclone plate tower, a first excimer ultraviolet light oxidation device connected to the first baffle filter, a first centrifugal fan connected to the first excimer ultraviolet light oxidation device, and an exhaust pipe connected to the centrifugal fan;

[0067] Preferably, a second cyclone plate tower is further provided between the first cyclone plate tower and the first baffle filter;

[0068] The top outlet of the first cyclone plate tower is connected to the inlet at the bottom edge of the second cyclone plate tower through a gas delivery pipeline, and the top outlet of the second cyclone plate tower is connected to the baffle filter through a gas delivery pipeline.

[0069] The low-concentration treatment system treats waste gas with low concentration. The waste gas from the low-concentration waste gas generation area during the production process of dipped cord fabric is introduced into the system for treatment. First, it passes through the first cyclone plate tower and the second cyclone plate tower for two cyclone treatments to remove the waste gas and waste residue particles to a greater extent through spraying; then the first baffle filter filters the glue residue and reduces the temperature of the waste gas. By filtering, it can avoid clogging the later equipment and causing system failure when there is too much glue residue. Then it passes through the first excimer ultraviolet oxidation device for treatment, and the oxidation reaction is carried out by active oxygen atoms and hydroxyl radicals to achieve the effect of purification and deodorization. The waste gas filtered and cooled by the baffle filter is then treated by the excimer ultraviolet oxidation device, with better treatment effect and higher efficiency, and the deodorization efficiency reaches more than 95%. That is, through reasonable design, the system can efficiently treat waste gas containing VOC and other substances.

[0070] In another embodiment of the present invention, a waste gas treatment system for the production of dipped tire cord fabric is provided, wherein the high-concentration waste gas treatment system includes a third cyclone plate tower that can be disconnected from the high-concentration waste gas generation area in the dipped tire cord fabric production system, a second baffle filter connected to the third cyclone tower, a packing tower connected to the second baffle filter, a second quasi-molecular ultraviolet light oxidation device connected to the packing tower, a centrifugal fan connected to the second quasi-molecular ultraviolet light oxidation device, and an exhaust chimney connected to the second centrifugal fan.

[0071] The high-concentration treatment system collects waste gas from the high-concentration waste gas generation area during the production process of dipped cord fabric, and passes it into the system for treatment. First, it passes through the third cyclone plate tower for dust removal, waste gas removal and temperature reduction, and then uses a baffle filter to filter the glue residue therein to prevent the glue residue in the waste gas with high concentration from clogging the subsequent equipment, and then uses a packing tower to further remove the waste gas therein and cool it down. At this time, the soluble waste gas and particulate matter therein are better removed, and the waste gas temperature is better reduced. Then, the excimer ultraviolet light oxidation device is used to efficiently oxidize and decompose the waste gas therein, with high efficiency and good purification treatment effect. The first excimer ultraviolet light oxidation device is exactly the same as the second excimer ultraviolet light oxidation device, and can be a device that is familiar to those skilled in the art.

[0072] The present invention also provides another embodiment, wherein the first cyclone plate tower comprises a first cyclone plate tower body and a first cyclone plate tower circulating water tank arranged on the outer side of the first cyclone plate tower body; the first cyclone plate tower body and the first cyclone plate tower circulating water tank are connected through a liquid pipeline arranged at the bottom edge;

[0073] A circulating liquid outlet is provided at the bottom edge of the first cyclone plate tower circulating water tank, and the circulating liquid outlet can be disconnected from the first cyclone plate tower circulating pump a through a delivery pipeline, and the first cyclone plate tower circulating pump a can be disconnected from the first spray device arranged in the cyclone plate tower body through a delivery pipeline; the circulating liquid outlet can also be disconnected from the first cyclone plate tower circulating pump b through a delivery pipeline, and the first cyclone plate tower circulating pump b can be disconnected from the second spray device arranged in the cyclone plate tower body through a delivery pipeline; the cyclone plate tower circulating water tank not only provides sufficient industrial water for the spraying of the cyclone plate tower, but also realizes the recycling and reuse of water resources therein, reduces the consumption of water resources and the treatment of a large amount of wastewater. The whole system can achieve better circulation and further reduce the consumption of energy resources;

[0074] Preferably, an overflow port is also provided in the middle and upper part of the side wall of the cyclone plate tower circulating water tank to control the liquid level in the cyclone plate tower circulating water tank, so that the whole system can operate safely and stably.

[0075] The second cyclone plate tower and the third cyclone plate tower have the same structure as the first cyclone plate tower. The second cyclone plate tower circulating water tank and the third cyclone plate tower circulating water tank have the same structure as the first cyclone plate tower circulating water tank. Therefore, the specific contents of the second cyclone plate tower device and the third cyclone plate tower device will not be repeated.

[0076] The present invention also provides another embodiment, wherein the packed tower device comprises a packed tower body and a packed tower circulating water tank arranged on one side of the outside of the packed tower; the packed tower body and the packed tower circulating water tank are connected through a liquid pipeline arranged at the bottom edge;

[0077] A circulating liquid outlet is provided at the bottom edge of the circulating water tank of the packed tower; the circulating liquid outlet is disconnected from the first packed tower circulating pump through a delivery pipeline, and the first packed tower circulating pump is disconnected from the first spray device arranged in the packed tower through a delivery pipeline; the circulating liquid outlet is also disconnected from the second packed tower circulating pump through a delivery pipeline, and the second packed tower circulating pump is disconnected from the second spray device arranged in the packed tower through a delivery pipeline;

[0078] The circulating water tank of the packed tower not only provides sufficient industrial water for the spraying of the packed tower, but also realizes the recycling of water resources, reduces the consumption of water resources and the treatment of a large amount of wastewater, so that the whole system can achieve better circulation and further reduce the consumption of energy resources.

[0079] Preferably, an overflow port is also provided in the upper middle portion of the side wall of the circulating water tank of the packed tower for controlling the liquid level in the circulating water tank of the cyclone plate tower.

[0080] like Figure 3 , Figure 4 As shown, the present invention also provides another embodiment, in which the VOC waste gas treatment system also includes an activated carbon filter box, and the gas outlets of the first excimer ultraviolet light oxidation device and the second excimer ultraviolet light oxidation device are both disconnectably connected to the gas inlet of the activated carbon filter box, and the gas outlet of the activated carbon filter box is disconnectably connected to the first centrifugal fan and the second centrifugal fan through a gas delivery pipeline.

[0081] That is, the gas treated by the excimer ultraviolet light oxidation device can be further treated by the activated carbon filter box, so that the gas treatment is more thorough and the purification effect is better. Especially when the high-concentration exhaust gas treatment system fails, the low-concentration exhaust gas treatment system is used to treat the exhaust gas, but the treatment is not thorough. Then it is filtered by the activated carbon filter box, so that the gas can meet the emission standards, realizing the continuous treatment of the gas and the continuous production of the entire system.

[0082] The present invention also provides another embodiment, in which a sewage treatment system is provided in the system, and the system collects the waste water after the waste gas is treated into the sewage treatment system for treatment, and the waste water is transported to the industrial water storage tank for recycling after treatment and purification. The circulation of the entire system is realized, and the consumption of energy resources is greatly reduced;

[0083] The bottom edge of the circulating water tank of the cyclone plate tower is provided with a sewage outlet, the bottom edge of the circulating water tank of the packed tower is also provided with a sewage outlet, and the baffle filter is also provided with a sewage outlet. The sewage outlet is connected to the sewage treatment system through a liquid delivery pipeline, and the sewage is delivered to the sewage treatment system for treatment.

[0084] like Figure 4 As shown, preferably, the liquid level of the cyclone plate tower circulating water tank and the packed tower circulating water tank can also be controlled by a float valve, and a float valve is arranged on the liquid surface of the industrial water discharge outlet and the circulating water tank to control the liquid level in the cyclone plate tower circulating water tank. The float valve is connected to the industrial water through a liquid delivery pipeline.

[0085] When the liquid level is low, the low-level float switch will jump to automatically replenish water; when the liquid level is high, the high-level float switch will jump to close the automatic water replenishment valve. Through the precise control of the liquid level in the water tank, it can not only save water resources, but also further maintain the stable and safe operation of the system.

[0086] The baffle filter device (the first baffle filter device and the second baffle filter device have the same structure) can be a device well known to those skilled in the art, or can be a device as described in the present invention. Figure 7-1 , Figure 7-2 , Figure 7-3 , Figure 7-4 , Figure 7-5 The device shown in the figure, the baffle filter device used in the system includes a rectangular shell, and a gas inlet and a gas outlet are respectively provided at both ends of the shell in the length direction;

[0087] Inside the shell, a first porous filter plate, a gas guide plate, a second porous filter plate and a defoaming plate are vertically arranged in sequence from the gas inlet to the rear; the plate surfaces of the first porous filter plate, the gas guide plate, the second porous filter plate and the defoaming plate are all perpendicular to the gas flow direction, and their edges are closely connected to the inner wall of the shell;

[0088] An opening a is provided on one side wall of the housing corresponding to one side of the first porous filter plate, for directly taking out the first porous filter plate from the housing; a corresponding sealing cover is provided on the opening a to seal the filter device; a slide groove a is provided on the bottom wall and the top wall of the housing corresponding to the opening a inside the housing, and the first porous filter plate slides into the housing through the slide groove a; the sealing cover seals the opening a by buckling;

[0089] An opening b is provided on one side wall of the housing corresponding to one side of the second porous filter plate, and a corresponding sealing cover is provided on the opening b; a sliding groove b is provided on the bottom wall and the top wall of the housing corresponding to the opening b inside the housing, and the second porous filter plate slides into the housing through the sliding groove b; the sealing cover seals the opening b by buckling;

[0090] An opening c is provided on one side wall of the shell corresponding to one side of the defoaming plate, and a corresponding sealing cover is provided on the opening c; a sliding groove c is provided on the bottom wall and the top wall of the shell corresponding to the opening c inside the shell, and the defoaming plate slides into the shell through the sliding groove c; the sealing cover seals the opening c by buckling;

[0091] The first porous filter plate and the second porous filter plate are both made of porous steel plates, and the aperture of the holes is 100-150 meshes; the thickness of the porous filter plates is 2.5-3.5 cm. The defoaming plate is a stainless steel wire mesh defoaming plate, and the surface of the stainless steel wire mesh is provided with a galvanized layer; the thickness of the defoaming plate is 10-15 cm. The gas guide plate is formed by a plurality of U-shaped grooves interlaced and buckled from top to bottom, and the opening directions of two adjacent U-shaped grooves are opposite (the buckling of two adjacent U-shaped grooves is: the lower wall of the upper U-shaped groove is buckled with the upper wall of the lower U-shaped groove, there is a certain gap between the lower wall and the upper wall, and there is also a certain gap between the open end of the groove wall and the bottom wall of the groove, so as to facilitate the passage of gas.); multiple U-shaped grooves are on the same vertical plane; there is a gap between the groove walls of two adjacent U-shaped grooves when they are buckled with each other.

[0092] The present invention also provides a method for treating waste gas using the waste gas treatment system in the production of dipped tire cord fabrics, the method comprising the following steps: the waste gas generated in the low-concentration waste gas generation area and the high-concentration waste gas generation area of ​​the dipped tire cord fabric production system is treated by the low-concentration waste gas treatment system and the high-concentration waste gas treatment system respectively, and the purified gas obtained after the treatment is discharged from the exhaust pipe;

[0093] Furthermore, the waste gas generated in the low-concentration waste gas generation area of ​​the dipped cord fabric production system is purified by the gas delivery pipeline through the first cyclone plate tower, the second cyclone plate tower, the first baffle filter, the first excimer ultraviolet light oxidation device, the first centrifugal fan, and the exhaust pipe in sequence, and then discharged after purification;

[0094] The waste gas generated in the high-concentration waste gas generating area of ​​the dipped cord fabric production system is purified through a gas transmission pipeline and sequentially passes through the third cyclone plate tower, the second baffle filter, the packing tower, the second excimer ultraviolet oxidation device, the second centrifugal fan, and the exhaust pipe before being discharged.

[0095] Regarding the method for treating waste gas using the waste gas treatment system in the production of dipped tire cord fabric, the present invention also provides another embodiment, which is as follows:

[0096] The temperature of the waste gas generated by the dipped cord fabric production system is 80-230°C;

[0097] The low-concentration waste gas has an odor concentration of 2000 to 10000 (dimensionless). The flow rate of the waste gas when treated by the low-concentration waste gas system is 35000m 3 / h; the waste gas generated in the low-concentration waste gas generation area of ​​the dipped cord fabric production system is led to the low-concentration treatment system, and the gas enters the cyclone plate tower through the gas delivery pipeline and the gas inlet at the lower part of the first cyclone plate tower body, and contacts with the liquid sprayed from top to bottom in countercurrent to remove particulate matter and soluble waste gas in the waste gas, and at the same time reduce the temperature of the treated waste gas (the temperature reduction varies according to the actual treatment situation); then it is discharged from the gas outlet at the top of the first cyclone plate tower, and enters the second cyclone plate tower through the gas delivery pipeline and the gas inlet at the lower part of the second cyclone plate tower, and contacts with the liquid sprayed from top to bottom in countercurrent to further The particulate matter and soluble gas are removed, and the temperature of the treated gas is further reduced (the temperature reduction value varies according to the actual treatment situation); then the gas is discharged from the gas outlet at the top of the second cyclone plate tower, and transported to the baffle filter by the gas delivery pipeline for treatment to filter the glue residue therein (placing it will cause clogging of subsequent equipment), and the filtered gas is transported by the gas delivery pipeline to the first excimer ultraviolet oxidation device for oxidation treatment to oxidize and decompose the organic odorous gas in the waste gas to achieve thorough purification, and the gas treated by the first excimer ultraviolet oxidation device is discharged, transported to the exhaust pipe, and discharged outside;

[0098] During the spraying process of the first cyclone plate tower and the second cyclone plate tower, the spray water used is transported from the water stored in the industrial water storage tank to the spraying device for spraying. The water that contacts the gas countercurrent reaches the bottom of the cyclone plate tower and enters the circulating water tank of the cyclone plate tower through the connected pipe. Then, the circulating water tank and the circulating pump enter the spraying device of the cyclone plate tower for recycling (to achieve the recycling of water resources). The flow rate of the circulating pump during operation is 100m 3 / h, power is 11kw; when the water level in the circulating water tank reaches the overflow port set at the top, the water in the circulating water tank automatically flows out and enters the sewage treatment system through the delivery pipeline for treatment. After treatment, it is transported to the industrial water storage through the liquid delivery pipeline, thus better realizing the recycling and reuse of water.

[0099] The gas enters from the lower part of the cyclone plate tower, and the liquid is sprayed downward by the spraying device. The spraying amount of the liquid can ensure sufficient contact with the gas.

[0100] The concentration of the high-concentration waste gas is the waste gas with an odor concentration of 17000 to 35000 (dimensionless); the flow rate of the waste gas when the high-concentration waste gas system is used for treatment is 30000m 3 / h; the waste gas generated in the high-concentration waste gas generation area of ​​the dipped cord fabric production system is led to the high-concentration treatment system. The gas enters the cyclone plate tower through the gas delivery pipeline and the gas inlet at the lower part of the third cyclone plate tower body, and contacts with the liquid sprayed from top to bottom in countercurrent to remove particulate matter and soluble waste gas in the waste gas, and at the same time reduce the temperature of the treated waste gas (the temperature reduction varies according to the actual treatment situation); then it is discharged from the gas outlet at the top of the third cyclone plate tower, and transported to the baffle filter by the gas delivery pipeline for filtration treatment (filtering to remove the glue residue in it to avoid the waste gas in the treatment After the baffle filter is processed, the gas enters the packed tower through the gas delivery pipeline and the gas inlet at the bottom of the packed tower, and contacts with the spray liquid from top to bottom in countercurrent to remove the particulate matter and soluble waste gas in the waste gas at a deeper level, and at the same time achieve the purpose of cooling. The treated gas is discharged from the top gas outlet of the packed tower; then it is transported to the second excimer ultraviolet oxidation device through the gas delivery pipeline to oxidize and decompose the organic odorous gas therein, so as to achieve thorough purification. The gas treated by the second excimer ultraviolet oxidation device is discharged, transported to the exhaust pipe, and discharged outside;

[0101] During the spraying process of the third cyclone plate tower, the spray water used is transported from the water stored in the industrial water storage tank to the spraying device for spraying. After countercurrent contact with the gas, the water reaches the bottom of the third cyclone plate tower and enters the circulating water tank of the third cyclone plate tower through the connected pipe. Then, the circulating water tank and the circulating pump enter the spraying device of the cyclone plate tower for recycling (to achieve the recycling of water resources). The flow rate of the circulating pump during operation is 44m 3 / h, power is 5.5kw; when the water level in the circulating water tank reaches the overflow port set at the top, the water in the circulating water tank automatically flows out and enters the sewage treatment system through the delivery pipeline for treatment. After treatment, it is transported to the industrial water storage through the liquid delivery pipeline, thus better realizing the recycling and reuse of water.

[0102] The gas enters from the lower part of the cyclone plate tower, and the liquid is sprayed downward by the spraying device. The spraying amount of the liquid can ensure sufficient contact with the gas.

[0103] During the spraying process of the packed tower, the spray water used is transported from the water stored in the industrial water storage tank to the spraying device for spraying. After countercurrent contact with the gas, the water reaches the bottom of the packed tower and enters the circulating water tank of the packed tower through the connected pipe. Then, the circulating water tank and the circulating pump enter the spraying device of the packed tower for recycling (to achieve the recycling of water resources). The flow rate of the circulating pump during operation is 85m 3 / h, power is 7.5kw; when the water level in the circulating water tank reaches the overflow port set at the top, the water in the circulating water tank automatically flows out and enters the sewage treatment system through the delivery pipeline for treatment. After treatment, it is transported to the industrial water storage through the liquid delivery pipeline, which better realizes the recycling of water. The gas enters from the lower part of the packing tower, and the liquid is sprayed downward by the spraying device. The spraying amount of the liquid can ensure sufficient contact with the gas.

[0104] The present invention is described in detail below by specific examples, but it is not intended to limit the scope of protection of the present invention. Unless otherwise specified, the equipment described in the following examples are all well-known equipment to those skilled in the art. The cyclone plate tower, packed tower, excimer ultraviolet oxidation device, and activated carbon filter box (HXF-35000 type) are all well-known equipment to those skilled in the art.

[0105] Example 1

[0106] An exhaust gas treatment system in the production of dipped cord fabrics, such as Figure 1 , Figure 2 , Figure 5 As shown, it includes a dipped cord fabric dipping system, and the dipped cord fabric production system includes a low-concentration waste gas generation area and a high-concentration waste gas generation area;

[0107] The exhaust gas treatment system also includes a low-concentration C exhaust gas treatment system connected to the low-concentration exhaust gas generation area, which is used to treat the low-concentration exhaust gas discharged from the tire cord fabric dipping system;

[0108] The low-concentration waste gas treatment system comprises a first cyclone plate tower which can be disconnected from the low-concentration waste gas generation area of ​​the dipped cord fabric production system, a second cyclone plate tower connected to the first cyclone plate tower, a first baffle plate filter connected to the second cyclone plate tower, a first excimer ultraviolet light oxidation device connected to the first baffle plate filter, a first centrifugal fan connected to the first excimer ultraviolet light oxidation device, and an exhaust pipe connected to the first centrifugal fan;

[0109] The exhaust gas treatment system also includes a high-concentration exhaust gas treatment system connected to the high-concentration exhaust gas generation area, which is used to treat the high-concentration exhaust gas discharged from the tire cord fabric dipping system;

[0110] The high-concentration waste gas treatment system includes a third cyclone plate tower that can be cut off from the high-concentration waste gas generation area of ​​the dipped cord fabric production system, a second baffle filter connected to the third cyclone tower, a packing tower connected to the second baffle filter, a second excimer ultraviolet light oxidation device connected to the packing tower, a centrifugal fan connected to the second excimer ultraviolet light oxidation device, and an exhaust pipe connected to the second centrifugal fan.

[0111] The first centrifugal fan and the second centrifugal fan are both connected to the exhaust pipe through the gas delivery pipeline to discharge the treated purified gas.

[0112] Furthermore, the first cyclone plate tower comprises a first cyclone plate tower body and a cyclone plate tower circulating water tank arranged on the outer side of the first cyclone plate tower body; the cyclone plate tower body and the cyclone plate tower circulating water tank are connected through a liquid pipeline arranged at the bottom edge;

[0113] A circulating liquid outlet is provided at the bottom edge of the cyclone plate tower circulating water tank, and the circulating liquid outlet can be disconnected from the first cyclone plate tower circulating pump through a delivery pipeline, and the first cyclone plate tower circulating pump can be disconnected from the first spray device arranged in the cyclone plate tower body through a delivery pipeline;

[0114] The circulating liquid outlet can be disconnected from the second cyclone plate tower circulating pump through a delivery pipeline, and the second cyclone plate tower circulating pump can be disconnected from the second spray device arranged in the cyclone plate tower body through a delivery pipeline;

[0115] An overflow port is also provided in the middle and upper part of the side wall of the cyclone plate tower circulating water tank for controlling the liquid level in the cyclone plate tower circulating water tank.

[0116] Wherein, the second cyclone plate tower and the third cyclone plate tower have the same structure as the first cyclone plate tower.

[0117] Furthermore, the packed tower device includes a packed tower body and a packed tower circulating water tank arranged on one side outside the packed tower; the packed tower body and the packed tower circulating water tank are connected through a liquid pipeline arranged at the bottom edge.

[0118] A circulating liquid outlet is provided at the bottom edge of the circulating water tank of the packed tower; the circulating liquid outlet can be disconnected from the first packed tower circulating pump through a delivery pipeline, and the first packed tower circulating pump can be disconnected from the first spray device arranged in the packed tower through a delivery pipeline;

[0119] The circulating liquid outlet can be disconnected from the second packed tower circulating pump through a delivery pipeline, and the second packed tower circulating pump can be disconnected from the second spraying device arranged in the packed tower through a delivery pipeline;

[0120] An overflow port is also provided in the middle and upper part of the side wall of the circulating water tank of the packing tower for controlling the liquid level in the circulating water tank of the cyclone plate tower.

[0121] Furthermore, the system also includes a sewage treatment system. The wastewater generated by the low-concentration waste gas treatment system and the high-concentration waste gas treatment system is transported to the sewage treatment system through a delivery pipeline for purification treatment; the sewage treatment system can be disconnected from the industrial water storage tank. The bottom edge of the cyclone plate tower circulating water tank is also provided with a sewage discharge outlet, the bottom edge of the packed tower circulating water tank is also provided with a sewage discharge outlet, and the baffle filter is also provided with a sewage discharge opening. The sewage discharge outlet is connected to the sewage treatment system through a liquid delivery pipeline, and the sewage is transported to the sewage treatment system for treatment. After treatment, it is transported to the industrial water storage tank for recycling.

[0122] Example 2

[0123] The same parts as those in Example 1 have the same functions and will not be repeated for the sake of brevity. The specific differences are as follows: Figure 3 , Figure 4 As shown,

[0124] The system also includes an activated carbon filter device. The gas outlets of the first excimer ultraviolet oxidation device and the second excimer ultraviolet oxidation device can be disconnected from the gas inlet of the activated carbon filter device. The gas outlet of the activated carbon filter device can be disconnected from the first centrifugal fan and the second centrifugal fan through a gas delivery pipeline.

[0125] Furthermore, the liquid level in the circulating water tank of the cyclone plate tower and the circulating water tank of the packed tower can also be controlled by a float valve, and a float valve is arranged on the liquid surface of the industrial water outlet and the circulating water tank to control the liquid level in the circulating water tank of the cyclone plate tower. The float valve is connected to the industrial water through a liquid delivery pipeline.

[0126] When the liquid level is low, the low liquid level float switch will jump to automatically add water; when the liquid level is high, the high liquid level float switch will jump to close the automatic water filling valve.

[0127] Example 3

[0128] A method for treating waste gas using the waste gas treatment system in the production of dipped tire cord fabrics according to the above embodiment comprises the following steps:

[0129] The waste gas generated in the low-concentration waste gas generation area and the high-concentration waste gas generation area in the dipped cord fabric production system is transported to the low-concentration waste gas treatment system and the high-concentration waste gas treatment system respectively through the gas transmission pipeline;

[0130] The gas entering the low-concentration waste gas treatment system enters the cyclone plate tower through the gas delivery pipeline and the gas inlet at the lower part of the first cyclone plate tower body, and contacts with the liquid sprayed from top to bottom in countercurrent to remove particulate matter and soluble waste gas in the waste gas, and at the same time reduces the temperature of the treated waste gas (the temperature reduction varies according to the actual treatment situation); then it is discharged from the gas outlet at the top of the first cyclone plate tower, and enters the second cyclone plate tower through the gas delivery pipeline and the gas inlet at the lower part of the second cyclone plate tower, and contacts with the liquid sprayed from top to bottom in countercurrent to further remove particulate matter and soluble gas therein. At the same time, the temperature of the treated gas is further reduced (the temperature reduction value varies according to the actual treatment situation); then it is discharged from the gas outlet at the top of the second cyclone plate tower, and transported to the baffle filter by the gas delivery pipeline for treatment to filter the glue residue therein (placing it will cause clogging of subsequent equipment), and the filtered gas is transported by the gas delivery pipeline to the first excimer ultraviolet oxidation device for oxidation treatment to oxidize and decompose the organic odorous gas in the waste gas to achieve thorough purification, and the gas treated by the first excimer ultraviolet oxidation device is discharged, transported to the exhaust pipe, and discharged externally;

[0131] During the spraying process of the first cyclone plate tower and the second cyclone plate tower, the spray water used is transported from the water stored in the industrial water storage tank to the spraying device for spraying. The water that contacts the gas countercurrent reaches the bottom of the cyclone plate tower and enters the circulating water tank of the cyclone plate tower through the connected pipe. Then, the circulating water tank and the circulating pump enter the spraying device of the cyclone plate tower for recycling (to achieve the recycling of water resources). The flow rate of the circulating pump during operation is 100m 3 / h, power is 11kw; when the water level in the circulating water tank reaches the overflow port set at the top, the water in the circulating water tank automatically flows out and enters the sewage treatment system through the delivery pipeline for treatment. After treatment, it is transported to the industrial water storage through the liquid delivery pipeline for recycling.

[0132] The main gas and odor concentrations in the low-concentration exhaust gas are specifically shown in the test results of Table 2; the flow rate of the exhaust gas when the low-concentration exhaust gas system is used for treatment is 35000m 3 / h; the water replenishment amount of the first cyclone plate tower and the second cyclone plate tower sprayed downward is about 5t / h.

[0133] The gas entering the high-concentration treatment system enters the cyclone plate tower through the gas delivery pipeline and the gas inlet at the lower part of the third cyclone plate tower body, and contacts with the liquid sprayed from top to bottom in countercurrent to remove particulate matter and soluble waste gas in the waste gas, and at the same time reduce the temperature of the treated waste gas (the temperature reduction varies according to the actual treatment situation); then it is discharged from the gas outlet at the top of the third cyclone plate tower, and transported to the baffle filter through the gas delivery pipeline for filtration treatment (filtering to remove the glue residue therein, so as to avoid the waste gas being treated from clogging the subsequent equipment); after the baffle filter treatment is completed, it enters the packed tower through the gas delivery pipeline and the gas inlet at the lower part of the packed tower, and contacts with the spray liquid sprayed from top to bottom in countercurrent to remove particulate matter and soluble waste gas in the waste gas at a deeper level, and at the same time achieve the purpose of cooling, and the treated gas is discharged from the gas outlet at the top of the packed tower; then it is transported to the second excimer ultraviolet oxidation device through the gas delivery pipeline for oxidative decomposition of the organic odorous gas therein, so as to achieve thorough purification, and the gas treated by the second excimer ultraviolet oxidation device is discharged, transported to the exhaust pipe, and discharged outside;

[0134] During the spraying process of the third cyclone plate tower, the spray water used is transported from the water stored in the industrial water storage tank to the spraying device for spraying. After countercurrent contact with the gas, the water reaches the bottom of the third cyclone plate tower and enters the circulating water tank of the third cyclone plate tower through the connected pipe. Then, the circulating water tank and the circulating pump enter the spraying device of the cyclone plate tower for recycling (to achieve the recycling of water resources). The flow rate of the circulating pump during operation is 44m 3 / h, power is 5.5kw; when the water level in the circulating water tank reaches the overflow port set at the top, the water in the circulating water tank automatically flows out and enters the sewage treatment system through the delivery pipeline for treatment. After treatment, it is transported to the industrial water storage through the liquid delivery pipeline, thus better realizing the recycling and reuse of water.

[0135] During the spraying process of the packed tower, the spray water used is transported from the water stored in the industrial water storage tank to the spraying device for spraying. After countercurrent contact with the gas, the water reaches the bottom of the packed tower and enters the circulating water tank of the packed tower through the connected pipe. Then, the circulating water tank and the circulating pump enter the spraying device of the packed tower for recycling (to achieve the recycling of water resources). The flow rate of the circulating pump during operation is 85m 3 / h, power is 7.5kw; when the water level in the circulating water tank reaches the overflow port set at the top, the water in the circulating water tank automatically flows out and enters the sewage treatment system through the delivery pipeline for treatment. After treatment, it is transported to the industrial water storage through the liquid delivery pipeline for recycling.

[0136] The main gas and odor concentrations of the high-concentration waste gas are shown in the test results of Table 4; the flow rate of the waste gas when the high-concentration waste gas system is used for treatment is 30000m3 / h; the water replenishment amount of the third cyclone plate tower and the packed tower sprayed downward is about 5t / h.

[0137] The parameters and test results in this process are shown in Table 1 and Table 2:

[0138] Table 1 Treatment parameters of waste gas generated during the production process of dipped cord fabric

[0139]

[0140] Table 2 Test results of the waste gas generated by the system of the present invention in the process of treating the production of dipped cord fabric

[0141]

[0142]

[0143]

[0144]

[0145] The detection method and detection limit used in the above-mentioned embodiment are specific, as shown in Table 3.

[0146] Table 3 Detection methods in the detection process of the present invention

[0147]

[0148]

[0149] Therefore, the system and method described in the present invention can effectively treat the waste gas generated in the production of dipped cord fabric. The whole system has good sealing performance, no waste gas leakage occurs, and the gas purification effect is good. The purified gas is far lower than the various waste gas contents required to meet the standards.

Claims

1. A waste gas treatment system in the production of dipped cord fabric, comprising a dipped cord fabric production system, It is characterized in that The dipped tire cord fabric production system includes a low-concentration waste gas generation area and a high-concentration waste gas generation area. The waste gas treatment system also includes a low-concentration waste gas treatment system connected to the low-concentration waste gas generation area, which is used to treat the low-concentration waste gas discharged from the tire cord fabric dipped system; and a high-concentration waste gas treatment system connected to the high-concentration waste gas generation area, which is used to treat the high-concentration waste gas discharged from the tire cord dipped system; The low-concentration waste gas treatment system and the high-concentration waste gas treatment system are both connected to the exhaust pipe through a gas delivery pipeline at the end to discharge the treated purified gas; The low-concentration exhaust gas treatment system includes a first cyclone plate tower that can be disconnected from the low-concentration exhaust gas generation area, a first baffle filter connected to the first cyclone plate tower, a first excimer ultraviolet light oxidation device connected to the first baffle filter, a first centrifugal fan connected to the first excimer ultraviolet light oxidation device, and an exhaust pipe connected to the first centrifugal fan; The high-concentration exhaust gas treatment system includes a third cyclone plate tower that can be disconnected from the high-concentration exhaust gas generation area, a second baffle filter connected to the third cyclone plate tower, a packing tower device connected to the second baffle filter, a second excimer ultraviolet light oxidation device connected to the packing tower device, a second centrifugal fan connected to the second excimer ultraviolet light oxidation device, and an exhaust pipe connected to the second centrifugal fan; A second cyclone plate tower is also provided between the first cyclone plate tower and the first baffle filter; The top outlet of the first cyclone plate tower is connected to the inlet at the bottom edge of the second cyclone plate tower through a gas delivery pipeline, and the top outlet of the second cyclone plate tower is connected to the first baffle filter through a gas delivery pipeline; The system also includes an industrial water storage tank to provide spray water for the first cyclone plate tower, the second cyclone plate tower, the third cyclone plate tower and the packed tower; It also includes a sewage treatment system, and the wastewater generated by the low-concentration waste gas treatment system and the high-concentration waste gas treatment system is transported to the sewage treatment system through a delivery pipeline for purification; The sewage treatment system and the industrial water storage tank can be disconnected.

2. The waste gas treatment system in the production of dipped cord fabric according to claim 1, It is characterized in that The first cyclone plate tower comprises a first cyclone plate tower body and a first cyclone plate tower circulating water tank arranged on the outer side of the first cyclone plate tower body; the cyclone plate tower body and the cyclone plate tower circulating water tank are connected through a liquid pipeline arranged at the bottom edge; A circulating liquid outlet is provided at the bottom edge of the first cyclone plate tower circulating water tank, and the circulating liquid outlet can be disconnected from the first cyclone plate tower circulating pump a through a delivery pipeline, and the first cyclone plate tower circulating pump a can be disconnected from the first spray device arranged in the cyclone plate tower body through a delivery pipeline; the circulating liquid outlet can also be disconnected from the first cyclone plate tower circulating pump b through a delivery pipeline, and the first cyclone plate tower circulating pump b can be disconnected from the second spray device arranged in the cyclone plate tower body through a delivery pipeline; An overflow port is also provided at the upper middle portion of the side wall of the first cyclone plate tower circulating water tank for controlling the liquid level in the first cyclone plate tower circulating water tank; The second cyclone plate tower and the third cyclone plate tower have the same structure as the first cyclone plate tower; The packed tower device comprises a packed tower body and a packed tower circulating water tank arranged on one side of the outside of the packed tower; the packed tower body and the packed tower circulating water tank are connected through a liquid pipeline arranged at the bottom edge; A circulating liquid outlet is provided at the bottom edge of the circulating water tank of the packed tower; the circulating liquid outlet is disconnected from the first packed tower circulating pump through a delivery pipeline, and the first packed tower circulating pump is disconnected from the first spray device arranged in the packed tower through a delivery pipeline; the circulating liquid outlet is also disconnected from the second packed tower circulating pump through a delivery pipeline, and the second packed tower circulating pump is disconnected from the second spray device arranged in the packed tower through a delivery pipeline; An overflow port is also provided in the middle and upper part of the side wall of the circulating water tank of the packed tower, which is used to control the liquid level in the circulating water tank of the packed tower.

3. The waste gas treatment system in the production of dipped cord fabric according to claim 1, It is characterized in that The system also includes an activated carbon filter; The gas outlets of the first excimer ultraviolet oxidation device and the second excimer ultraviolet oxidation device can be disconnected from the gas inlet of the activated carbon filter device, and the gas outlet of the activated carbon filter device can be disconnected from the first centrifugal fan and the second centrifugal fan through the gas delivery pipeline.

4. A method for treating waste gas using the waste gas treatment system according to any one of claims 1 to 3, It is characterized in that The method comprises the following steps: The waste gas generated in the low-concentration waste gas generating area and the high-concentration waste gas generating area of ​​the dipped cord fabric production system is treated by the low-concentration waste gas treatment system and the high-concentration waste gas treatment system respectively. The purified gas obtained after the treatment is discharged from the exhaust pipe.

5. The method for treating waste gas according to claim 4, It is characterized in that The waste gas generated in the low-concentration waste gas generation area of ​​the dipped cord fabric production system is purified through the gas delivery pipeline in sequence through the first cyclone plate tower, the second cyclone plate tower, the first baffle filter, the first excimer ultraviolet light oxidation device, the first centrifugal fan, and the exhaust pipe, and then discharged externally after purification; The waste gas generated in the high-concentration waste gas generating area of ​​the dipped cord fabric production system is purified through a gas transmission pipeline and sequentially passes through the third cyclone plate tower, the second baffle filter, the packing tower, the second excimer ultraviolet oxidation device, the second centrifugal fan, and the exhaust pipe before being discharged.

6. The method for treating waste gas according to claim 5, It is characterized in that When using low-concentration exhaust gas system for treatment, the flow rate of exhaust gas is 34000~40000m 3 / h; When using high-concentration exhaust gas system for treatment, the flow rate of exhaust gas is 28000~32000m 3 / h.

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