CN216778473U - High-low concentration flow-dividing treatment system for rubber tire banburying waste gas - Google Patents
High-low concentration flow-dividing treatment system for rubber tire banburying waste gas Download PDFInfo
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- CN216778473U CN216778473U CN202123452987.5U CN202123452987U CN216778473U CN 216778473 U CN216778473 U CN 216778473U CN 202123452987 U CN202123452987 U CN 202123452987U CN 216778473 U CN216778473 U CN 216778473U
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Abstract
The utility model provides a high-low concentration shunting treatment system for rubber tire banburying waste gas, which comprises a waste gas shunting and collecting device, a rapping filtering and dust removing device, an oil absorption powder applying device, an additional filtering device, a waste gas adsorption and desorption device and a waste gas combustion deviceAfter pretreatment, the waste water is adsorbed and desorbed by a zeolite rotating wheel and is incinerated by a heat accumulating type incinerator. Compared with the conventional rotating wheel and regenerative incinerator treatment process, the system removal rate can be improved by about 10 percent, and the allowable waste gas inlet concentration of the system is controlled from 50mg/m3Is increased to 100mg/m3The problem that the concentration fluctuation of the waste gas generated in the process of adopting a rotating wheel and a heat accumulating type incinerator exceeds the standard is solved.
Description
Technical Field
The utility model relates to waste gas treatment equipment, in particular to a high-low concentration flow dividing treatment system for rubber tire banburying waste gas.
Background
Before 2018, the waste gas treatment in the rubber tire industry mostly adopts plasma, UV photolysis and photocatalysis technologies, so far, the technologies adopted in the existing waste gas treatment equipment still account for more than 80%, the treatment efficiency of the technologies is low, and the problem that the project reaches the standard cannot be well solved, for example, a pulse bag-type dust collector can remove dust particles, but tar cannot be removed, even the situation that the tar blocks a filter bag and subsequent base materials can occur, so that the treatment efficiency of each module of the system is reduced and even is paralyzed; the photo-oxidation catalysis has a certain effect on malodorous gas, has low removal efficiency on organic matters, and is difficult to achieve ideal treatment effect and discharge index reaching the standard aiming at banburying waste gas; the tar which is not completely treated is easy to cover the photooxidation lamp tube and the catalytic material, so that the phenomenon of failure of treatment equipment is caused; the spray tower has certain removal rate to the composition and the tiny particle thing that dissolve in water, but is lower to the removal efficiency of organic matter, and big amount of wind waste gas spray tower occupation of land is great, consequently also has great limitation, mostly only uses as the preliminary treatment in the practical application.
At present, the flue gas in a workshop is commonly collected and uniformly mixed in a rubber tire factory, and then enters a zeolite rotating wheel adsorption and desorption and heat accumulation type incinerator for treatment after pretreatment, so that the treatment mode is relatively high in treatment efficiency. However, in practical engineering application, the source of the generated banburying waste gas of a rubber tire factory is more, the banburying waste gas comprises a discharge port, a feed port, an extruder, an open mill, a film cooling discharge port and the like, the emission characteristics of waste gas at each generation point are different, the concentration difference is larger, the instantaneous fluctuation is larger along with the production period, simple unified collection is adopted, and the problem that the concentration fluctuation is larger and even the periodicity exceeds the standard often occurs in the mixed treatment of the waste gas at each emission point. The pressure on the environmental protection of enterprises is caused, and the harmful damage to surrounding residents is also caused. Meanwhile, the currently adopted process is high in cleaning and maintenance cost, tar in the system needs to be cleaned regularly, the treatment efficiency is low, the attenuation is serious, the use is inconvenient, water and filter bags need to be changed regularly, and the energy consumption is high. Therefore, it is necessary to optimize the structure of the rubber tire mixing waste gas treatment system to overcome the above defects.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-low concentration flow dividing treatment system for rubber tire banburying waste gas, so as to improve the waste gas treatment efficiency and save the treatment cost.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
the utility model provides a rubber tire banburying waste gas high-low concentration reposition of redundant personnel processing system, includes:
the waste gas shunting and collecting device is communicated with a waste gas discharge port of the rubber tire internal mixing equipment and is used for shunting and collecting waste gas discharged by the rubber tire internal mixing equipment according to the concentration of the waste gas;
the vibrating, filtering and dust removing device is communicated with the waste gas shunting and collecting device, and the vibrating, filtering and dust removing device is used for removing dust from the waste gas conveyed by the waste gas shunting and collecting device;
the oil absorption powder applying device is matched with the rapping dust removal device, and the oil absorption powder is applied to the rapping dust removal device by the oil absorption powder laminating device, so that the rapping filtering dust removal device carries out tar absorption treatment on the waste gas conveyed by the waste gas shunting collection device;
the additional filtering device is communicated with the vibration and filtration dust removal device, and the additional filtering device is used for filtering the waste gas treated by the vibration and filtration dust removal device;
the waste gas adsorption and desorption device is communicated with the additional filtering device, and the waste gas after being filtered by the additional filtering device is subjected to adsorption and desorption treatment by the waste gas adsorption and desorption device;
and the waste gas combustion device is communicated with the waste gas adsorption and desorption device and the additional filtering device, and the waste gas after being treated by the waste gas adsorption and desorption device and the additional filtering device is subjected to combustion treatment by the waste gas combustion device.
Specifically, the exhaust gas flow dividing and collecting device includes:
the high-concentration collection pipeline is communicated with a discharge opening of the rubber tire banburying device, and high-concentration waste gas discharged from the discharge opening of the rubber tire banburying device is collected by the high-concentration collection pipeline;
and the low-concentration collecting pipeline is communicated with the feed opening of the rubber tire banburying device, the extruder and the open mill, and low-concentration waste gas discharged by the feed opening of the rubber tire banburying device, the extruder and the open mill is collected by the low-concentration collecting pipeline.
The vibrating, filtering and dust removing device comprises:
the first bag-type dust collector is communicated with the high-concentration collecting pipeline, and the first bag-type dust collector is used for removing dust from the high-concentration waste gas collected by the high-concentration collecting pipeline;
and the second bag-type dust collector is communicated with the low-concentration collecting pipeline, and the low-concentration waste gas collected by the low-concentration collecting pipeline is subjected to dust removal treatment by the second bag-type dust collector.
Oil absorption powder applying device includes:
and the slaked lime ejector is matched with the first bag-type dust collector and the second bag-type dust collector respectively, slaked lime is ejected to the surfaces of the filter bags of the first bag-type dust collector and the second bag-type dust collector by the slaked lime ejector, and a film coating layer is formed on the surface of each filter bag, so that the first bag-type dust collector and the second bag-type dust collector respectively carry out tar absorption treatment on the high-concentration waste gas collected by the high-concentration collecting pipeline and the low-concentration waste gas collected by the low-concentration collecting pipeline.
The additional filtering device comprises:
the first dry filter is communicated with the first bag-type dust remover, and the first dry filter is used for filtering the high-concentration waste gas treated by the first bag-type dust remover;
and the second dry filter is communicated with the second bag-type dust remover, and the second dry filter is used for filtering the low-concentration waste gas treated by the second bag-type dust remover.
The exhaust gas adsorption and desorption device comprises:
and the zeolite adsorption and desorption rotating wheel is communicated with the second dry filter, and the zeolite adsorption and desorption rotating wheel is used for carrying out adsorption and desorption treatment on the low-concentration waste gas treated by the second dry filter.
The exhaust gas combustion apparatus includes:
and the heat accumulating type incinerator is respectively communicated with the zeolite adsorption and desorption rotating wheel and the first dry filter, and the heat accumulating type incinerator is used for carrying out combustion treatment on the high-concentration waste gas formed by the treatment of the zeolite adsorption and desorption rotating wheel and the high-concentration waste gas treated by the first dry filter.
The utility model has the advantages that:
(1) the treatment system can carry out high-low concentration shunt treatment on the rubber tire banburying waste gas, and solves the problem that the concentration fluctuation of the banburying waste gas exceeds the standard;
(2) the pulse bag-type dust collector arranged in the treatment system can remove dust particles, can effectively adsorb and remove tar by combining with a slaked lime film, prevents the situation that the filter bag and subsequent filter materials are blocked by the tar, and avoids the situation that the treatment efficiency of each module of the system is reduced and even paralyzed;
(3) the primary pretreatment of the treatment system adopts a slaked lime jet bag-type dust remover, and large particles are removed while tar is removed; the secondary pretreatment adopts a multi-stage dry filter, so that micro particles can be effectively removed, and the concentration of the particles in the waste gas entering the heat storage combustion device is ensured to be far lower than 5mg/m3The particles are prevented from blocking a heat accumulator in the regenerative incinerator to influence the heat accumulation effect;
(4) the treatment efficiency of the heat accumulating type incinerator arranged in the treatment system is more than 98%, the treatment system has higher efficiency for removing organic matters, and can achieve ideal treatment effect aiming at waste gas at an internal mixing discharge port and ensure that the emission index reaches the standard;
(5) the treatment system has high automation degree and low cleaning and maintenance cost, and does not need to regularly clean tar in the system;
(6) the treatment system is convenient to use, does not need to change the filter bag frequently, and only needs to consume low-price slaked lime.
Drawings
FIG. 1 is a schematic structural diagram of a high-low concentration flow-dividing treatment system for rubber tire banburying waste gas provided by the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The apparatus of the embodiments of the utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
As shown in figure 1, the high-low concentration split-flow treatment system for rubber tire banburying waste gas provided by the utility model comprises a waste gas split-flow collection device, a rapping filtering dust removal device, an oil absorption powder application device, an additional filtration device, a waste gas adsorption and desorption device and a waste gas combustion device, wherein the waste gas split-flow collection device is communicated with a waste gas discharge port of rubber tire banburying equipment, waste gas discharged by the rubber tire banburying equipment is split-flow collected according to the concentration of the waste gas, the rapping filtering dust removal device is communicated with the waste gas split-flow collection device, the waste gas conveyed by the waste gas split-flow collection device is subjected to dust removal treatment by the rapping filtering dust removal device, the oil absorption powder application device is matched with the rapping dust removal device, the oil absorption powder is applied to the rapping dust removal device by an oil absorption powder coating device, and the rapping filtering dust removal device is subjected to tar absorption treatment on the waste gas conveyed by the waste gas split-flow collection device, the additional filtering device is communicated with the rapping filtering and dust removing device, the waste gas treated by the rapping filtering and dust removing device is filtered by the additional filtering device, the waste gas adsorption and desorption device is communicated with the additional filtering device, the waste gas filtered by the additional filtering device is adsorbed and desorbed by the waste gas adsorption and desorption device, the waste gas combustion device is communicated with the waste gas adsorption and desorption device and the additional filtering device, and the waste gas treated by the waste gas combustion device to the waste gas adsorption and desorption device and the additional filtering device is combusted.
In this embodiment, waste gas reposition of redundant personnel collection device includes high concentration collection pipeline 110 and low concentration collection pipeline 120, the discharge opening intercommunication of high concentration collection pipeline and rubber tire banburying device, collect the pipeline by high concentration and collect the discharge opening exhaust high concentration waste gas of rubber tire banburying device, the low concentration is collected the pipeline and is mixed the dog-house of equipment with rubber tire, the extruder, the mill intercommunication, collect the dog-house of pipeline to rubber tire banburying device by low concentration, the extruder, mill exhaust low concentration waste gas is collected. The rapping filtering dust removing device comprises a first bag-type dust collector 210 and a second bag-type dust collector 220, the first bag-type dust collector is communicated with a high-concentration collecting pipeline, high-concentration waste gas collected by the high-concentration collecting pipeline is subjected to dust removal treatment by the first bag-type dust collector, the second bag-type dust collector is communicated with a low-concentration collecting pipeline, and low-concentration waste gas collected by the low-concentration collecting pipeline is subjected to dust removal treatment by the second bag-type dust collector. The oil absorption powder applying device comprises a slaked lime injector 300, the slaked lime injector is respectively matched with the first bag-type dust collector and the second bag-type dust collector, slaked lime is injected to the surfaces of the filter bags of the first bag-type dust collector and the second bag-type dust collector through the slaked lime injector, and a film coating layer is formed on the surface of each filter bag, so that the first bag-type dust collector and the second bag-type dust collector respectively absorb tar in high-concentration waste gas collected by a high-concentration collecting pipeline and low-concentration waste gas collected by a low-concentration collecting pipeline. The additional filtering device comprises a first dry filter 410 and a second dry filter 420, the first dry filter is communicated with the first bag-type dust remover, the first dry filter is used for filtering high-concentration waste gas treated by the first bag-type dust remover, the second dry filter is communicated with the second bag-type dust remover, and the second dry filter is used for filtering low-concentration waste gas treated by the second bag-type dust remover. The waste gas adsorption and desorption device comprises a zeolite adsorption and desorption rotating wheel 500, the zeolite adsorption and desorption rotating wheel is communicated with the second dry filter, and the zeolite adsorption and desorption rotating wheel is used for carrying out adsorption and desorption treatment on the low-concentration waste gas treated by the second dry filter. The waste gas combustion device comprises a heat accumulating type incinerator 600 which is respectively communicated with the zeolite adsorption and desorption rotating wheel and the first dry filter, and the heat accumulating type incinerator is used for carrying out combustion treatment on high-concentration waste gas formed by the treatment of the zeolite adsorption and desorption rotating wheel and the high-concentration waste gas treated by the first dry filter.
The processing flow of the system comprises the following steps:
(1) waste gas shunting collection
The internally mixed discharge openings are separately collected, the collected air quantity of the discharge openings is subjected to air reduction and thickening treatment, and the collected air quantity of the discharge openings is reduced, so that the volume of the heat accumulating type incinerator is reduced, and the fuel consumption of the heat accumulating type incinerator is reduced; and other low-concentration discharge ports such as a feed port, an extruder, an open mill and the like are independently collected.
(2) Pretreatment for oil and dust removal
The internal mixing discharge opening contains dust and tar, the tar content of the discharge opening is highest in all the discharge openings, and the waste gas at the discharge opening is subjected to oil and dust removing treatment in a powder spraying mode of a pulse bag-type dust remover. When discharge opening waste gas carries out the pulse bag dust collector ware, filter through straining a section of thick bamboo and get rid of dust and tar, because tar has the stickness, can adhere the filter bag surface, refuel can't get off from the blowback of filter bag surface in the time of leading to the pulse blowback, and filter bag life is short, also tar can see through the filter bag space and enter into subsequent processing equipment, leads to subsequent processing equipment to block up. Aiming at the situation, the design is that the surface of the filter bag is sprayed with the oil absorption powder, a film coating layer is formed on the surface of the filter bag, and the oil absorption powder film coating layer can absorb most of tar in the waste gas, so that a good oil removing effect is achieved.
A two-stage dry filter is designed at the rear end of the dust remover, and the two-stage dry filter adopts F7 and F9 with higher filter precision to further filter tar and dust. When the filter bag of the dust collector is accidentally damaged, the dry filter can also play a role in protecting rear-end equipment.
The pretreatment mode of the waste gas at the low-concentration discharge outlet of a feed inlet, an extruder, an open mill and the like is similar to that of the discharge outlet, but the design of the pre-adsorption of the active carbon and the cooling of a surface cooler is added. The active carbon pre-adsorption is to adsorb high boiling point components in the waste gas in advance, so as to avoid that the high boiling point substances are not desorbed after being adsorbed by a rear-end rotating wheel, and the surface cooler is used for cooling the waste gas, so that the temperature of the waste gas is less than 40 ℃, and the rotary wheel adsorption is facilitated.
(3) Zeolite runner adsorption and desorption
The waste gas at the low-concentration discharge port of a feed port, an extruder, an open mill and the like is pretreated and then is subjected to adsorption and desorption treatment through a rotating wheel. The zeolite rotating wheel is divided into 3 areas, namely a desorption area, a cooling area and an adsorption area, and the rotating wheel keeps 1-5 revolutions per hour when working. When the waste gas passes through the adsorption zone, the organic components in the waste gas are adsorbed by the rotating wheel and then reach the standard to be discharged; the rotating wheel rotates to a desorption area, the rotating wheel is desorbed by hot gas at 200 ℃, and the desorbed waste gas has higher concentration and is directly fed into a heat accumulating type incinerator for incineration; the rotating wheel rotates to a cooling area, a small stream of gas is introduced from the waste gas to cool the rotating wheel, and meanwhile, the heat storage of the wheel core of the rotating wheel can be recovered. The waste gas component in the rubber tire industry is complex, and the adsorption efficiency of the rotating wheel is about 80%.
The runner is a high-temperature desorption type runner, the maximum desorption temperature is 300 ℃, high-temperature desorption is carried out on the runner at regular intervals, and the service life of the runner is prolonged. The desorption heat of the rotating wheel is extracted from the heat accumulating type incinerator, and the gas in a rotating wheel cooling area is heated through heat exchange of the heat exchanger.
(4) Heat accumulating type incinerator incineration
Waste gas and discharge opening high concentration waste gas that the runner desorption came out get into the heat accumulation formula and burn burning furnace, burn through three chambeies heat accumulation formula and burn burning furnace and handle. Three-cavity regenerative incinerator has 3 regenerative chambers, 1 incineration chamber, 3 air inlet poppet valves, 3 exhaust poppet valves, 3 purging switching valves, and the valves are periodically switched for 90-120 s. The burning temperature of the heat accumulating type incinerator is 800 ℃, the reaction time is one second, and the purification efficiency of the heat accumulating type incinerator is 98 to 99 percent.
Because discharge opening waste gas does not directly get into the heat accumulation formula burning furnace through the runner concentration, so the heat accumulation formula that high low concentration reposition of redundant personnel processing technology designed burns burning furnace amount of wind can be greater than the runner + heat accumulation formula and burns burning furnace technology, natural gas consumption also can be greater than runner + heat accumulation formula and burns burning furnace technology, for reducing the heat accumulation formula and burn burning furnace processing amount of wind, carry out the air reduction densification processing to discharge opening waste gas under the prerequisite that satisfies the collection effect, reduce the heat accumulation formula and burn burning furnace processing amount of wind, the natural gas consumption that the heat accumulation formula burnt burning furnace has also been reduced, the working costs is reduced.
The heat accumulating type incinerator runs for a long time, the heat accumulating type incinerator bottom heat accumulation body can accumulate tar, the heat accumulating type incinerator heat recovery efficiency is reduced, the wind resistance of the heat accumulating type incinerator is increased, and the heat accumulating type incinerator purification efficiency is also reduced, so that the heat accumulating type incinerator is designed with a high-temperature reverse burning function, a heat accumulation body at the bottom of the heat accumulating type incinerator is subjected to reverse burning regularly, and the tar in the heat accumulation body is removed.
The treatment system can carry out a high-low concentration shunting treatment process of rubber tire banburying waste gas, the banburying smoke is separately collected according to high and low concentrations, and the high-concentration smoke at a discharge opening of the banburying procedure is pretreated and then directly enters heat accumulating type incinerator equipment for incineration treatment; the flue gas of other low-concentration discharge ports (including a banburying feeding port, an extruder, an open mill, a film cooling discharge port and the like) except a discharge port is pretreated and then treated by a treatment process of zeolite rotary wheel adsorption and desorption and regenerative incinerator incineration, and high-low concentration waste gas is treated by a common regenerative incinerator. Compared with the conventional process of 'rotating wheel + heat accumulating type incinerator', the process has the advantages that the system removal rate can be improved by about 10 percent, and the allowable waste gas inlet concentration of the system is from 50mg/m3Is increased to 100mg/m3(ii) a The problem of the concentration fluctuation of the waste gas generated by the process of adopting a rotating wheel and a heat accumulating type incinerator to carry out banburying waste gas exceeds the standard is solved.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the equipment or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, 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. In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect through an intermediate medium, and the connection may be internal to the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Claims (7)
1. The utility model provides a rubber tire banburying waste gas high-low concentration reposition of redundant personnel processing system which characterized in that includes:
the waste gas shunting and collecting device is communicated with a waste gas discharge port of the rubber tire internal mixing equipment and is used for shunting and collecting waste gas discharged by the rubber tire internal mixing equipment according to the concentration of the waste gas;
the vibration filtering and dust removing device is communicated with the waste gas shunting and collecting device, and the vibration filtering and dust removing device is used for removing dust from the waste gas conveyed by the waste gas shunting and collecting device;
the oil absorption powder applying device is matched with the rapping dust removal device, and the oil absorption powder is applied to the rapping dust removal device by the oil absorption powder laminating device, so that the rapping filtering dust removal device carries out tar absorption treatment on the waste gas conveyed by the waste gas shunting collection device;
the additional filtering device is communicated with the vibration and filtration dust removal device, and the additional filtering device is used for filtering the waste gas treated by the vibration and filtration dust removal device;
the waste gas adsorption and desorption device is communicated with the additional filtering device, and the waste gas after being filtered by the additional filtering device is subjected to adsorption and desorption treatment by the waste gas adsorption and desorption device;
and the waste gas combustion device is communicated with the waste gas adsorption and desorption device and the additional filtering device, and the waste gas after being treated by the waste gas adsorption and desorption device and the additional filtering device is subjected to combustion treatment by the waste gas combustion device.
2. The high and low concentration flow dividing treatment system for rubber tire internal mixing exhaust gas as claimed in claim 1, wherein the exhaust gas flow dividing and collecting device comprises:
the high-concentration collecting pipeline is communicated with a discharge opening of the rubber tire banburying device;
and the low-concentration collecting pipeline is communicated with a feed port of the rubber tire banburying device, the extruder and the open mill.
3. The high and low concentration flow dividing treatment system for rubber tire banburying exhaust gas as claimed in claim 2, wherein the rapping filtering dust-removing device comprises:
the first bag-type dust collector is communicated with the high-concentration collecting pipeline;
and the second bag-type dust collector is communicated with the low-concentration collecting pipeline.
4. The high-low concentration flow dividing treatment system for rubber tire banburying waste gas according to claim 3, wherein the oil absorption powder applying device comprises:
and the slaked lime injector is respectively matched with the first bag-type dust collector and the second bag-type dust collector.
5. The high and low concentration flow dividing treatment system for rubber tire banburying exhaust gas according to claim 3, wherein the additional filtering device comprises:
the first dry filter is communicated with the first bag-type dust collector;
and the second dry filter is communicated with the second bag-type dust collector.
6. The high-low concentration flow dividing treatment system for rubber tire internal mixing waste gas as claimed in claim 5, wherein the waste gas adsorption and desorption device comprises:
and the zeolite adsorption and desorption rotating wheel is communicated with the second dry filter.
7. The high and low concentration flow dividing treatment system for rubber tire banburying exhaust gas according to claim 6, wherein the exhaust gas combustion device comprises:
and the heat accumulating type incinerator is respectively communicated with the zeolite adsorption and desorption rotating wheel and the first dry filter.
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| CN202123452987.5U CN216778473U (en) | 2021-12-31 | 2021-12-31 | High-low concentration flow-dividing treatment system for rubber tire banburying waste gas |
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