Gas turbine system for treating VOC (volatile organic compounds) in tire manufacturing industry

Abstract

The utility model discloses a gas turbine system for treating VOC (Volatile Organic Compounds) in the tire manufacturing industry, and relates to a gas turbine system for treating VOC in the tire manufacturing industry. Comprising a coarse filtration system used for removing oil mist in waste gas; the multi-path gas turbine system is connected with the coarse filtration system, and each path of gas turbine system comprises a gas compressor used for compressing the waste gas and the ambient air after the oil mist is removed; the combustion cylinder is respectively connected with the gas compressor and the natural gas input pipeline, natural gas is combusted in the combustion cylinder, and waste gas is used as combustion-supporting gas; the turbine is connected with the combustion cylinder, and high-temperature and high-pressure working media generated in the combustion cylinder push the turbine to do work. According to the system, effective treatment of waste gas is achieved, additional electric energy and heat energy are generated, high-quality energy support is provided for tire production and manufacturing, and the production cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of energy utilization, specifically relates to a gas turbine system for handling VOC in tire manufacturing industry. BACKGROUND

[0002] To meet the increasingly stringent environmental emission standards, the waste gas treatment system in the mixing plant during the production process of the tire manufacturing industry needs to be upgraded and transformed to minimize the pollution of waste gas to the environment. The commonly used treatment system currently includes "powder spraying pretreatment device + multi-stage dry filtration + activated carbon filtration + zeolite rotary wheel / fixed bed concentration device + three-bed RTO (thermal oxidation regeneration) pyrolysis device". To ensure that dust, oil fumes, water vapor and other pollutants in the system do not invade the zeolite rotary wheel and cause it to fail, a dust remover is used to spray lime in the pretreatment stage. This method effectively absorbs oil fumes, moisture, filters dust, and reacts part of H2S by making the lime on the surface of the filter bag fully contact with the flue gas, thereby protecting the filter bag of the dust remover and reducing the odor concentration.

[0003] This way cleverly takes advantage of the large specific surface area of zeolite and the change in intermolecular forces under different temperature conditions. Under low temperature conditions, a large amount of organic waste gas passes through the zeolite molecular sieve rotary wheel, and VOC molecules are adsorbed on its surface. The waste gas treated by the zeolite rotary wheel can be directly discharged into the atmosphere. When part of the zeolite rotary wheel enters the high-temperature desorption zone, small-amount high-temperature waste gas can desorb the VOC molecules adsorbed on the zeolite rotary wheel, forming high-concentration waste gas. These high-concentration waste gas is then sent to the waste gas oxidation system for thermal oxidation treatment, and the purified waste gas can also be directly discharged. However, it is worth noting that each component in this scheme is consumable, not only has high energy consumption, but also lacks economic value, resulting in high annual operating costs. SUMMARY

[0004] The utility model aims at providing a gas turbine system for handling VOC in tire manufacturing industry, which has high treatment efficiency, can treat waste gas cleanly and meet environmental protection requirements, and can generate electric energy and heat energy for use in the tire production process.

[0005] To achieve the above-mentioned purpose, the application provides a gas turbine system for handling VOC in tire manufacturing industry, which comprises:

[0006] A coarse filtration system is used to remove oil mist from the waste gas.

[0007] A plurality of gas turbine systems are connected to the coarse filtration system, and each gas turbine system comprises:

[0008] A gas compressor is used to compress the waste gas after removing the oil mist and the ambient air.

[0009] a combustion cylinder connected with the compressor and the natural gas input pipeline, in which the natural gas is burned, and the exhaust gas is used as the combustion-supporting gas;

[0010] a turbine connected with the combustion cylinder, in which the high-temperature and high-pressure working medium generated in the combustion cylinder drives the turbine to work.

[0011] In one embodiment, the gas turbine system further comprises:

[0012] a generator connected with the turbine, which is driven by the turbine to generate electricity.

[0013] In one embodiment, the generator is connected with the municipal power grid through an electric power output pipeline.

[0014] In one embodiment, the gas turbine system further comprises:

[0015] a waste heat boiler connected with the turbine, in which the flue gas is introduced to generate steam.

[0016] In one embodiment, a gas compressor is arranged on the natural gas input pipeline.

[0017] In one embodiment, an electric regulating valve is arranged on the pipeline between the turbine and the waste heat boiler.

[0018] In one embodiment, a pneumatic lifting pump is arranged between the coarse filtration system and the gas turbine system.

[0019] In one embodiment, the coarse filtration system comprises:

[0020] a powder spraying and oil removing device for mixing the oil mist in the exhaust gas with lime powder to form particulate matter;

[0021] an activated carbon and filter core adsorption filtration device connected with the powder spraying and oil removing device to remove the particulate matter to meet the air intake requirements of the compressor.

[0022] In one embodiment, the powder spraying and oil removing device is connected with the exhaust gas input pipeline and the lime powder bin, respectively.

[0023] In one embodiment, the lime powder in the lime powder bin is blown into the powder spraying and oil removing device by a blower.

[0024] The above technical scheme has the advantages that, compared with the prior art, the environmental protection equipment in the tire manufacturing industry introduces a combustion engine to treat volatile organic compounds VOC, and the working efficiency is high and the environmental protection is good.

[0025] In addition, the emission amount of NO X (nitrogen oxide) generated by the combustion engine during combustion is strictly controlled within the emission standard, ensuring environmental protection compliance. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 is a multi-path combustion engine system structure principle diagram;

[0027] Fig. 2 is a combustion engine system structure principle diagram for treating VOC in the tire manufacturing industry;

[0028] 1, compressor, 2, combustion cylinder, 3, turbine, 4, generator, 5, waste heat boiler, 6, electric regulating valve, 7, gas compressor, 8, natural gas input pipeline, 9, power output pipeline, 10, flue gas discharge pipeline, 11, pneumatic booster pump, 12, lime powder bin, 13, air blower, 14, powder injection oil removal device, 15, activated carbon and filter core adsorption filter device. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical schemes and beneficial effects of the present application clearer, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply a relative importance or an ordering between or among the indicated technical features. Thus, a feature defined with "first", "second", etc. can include one or more of the features implicitly or explicitly. In the description of the present application, the meaning of "a plurality of" is two or more, unless explicitly specified otherwise.

[0032] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The waste gas generated in the tire production process is dusted and mixed with natural gas to enter the combustion engine for combustion, and the combustion engine generates electric energy, while the high-temperature flue gas enters the waste heat exchanger to generate high-pressure steam. Please refer to Figs. 1-2 The present embodiment provides a combustion engine system for treating VOC in the tire manufacturing industry, comprising:

[0035] The coarse filtration system is an environmental protection device in the existing tire manufacturing industry, which is used to remove oil mist in the waste gas;

[0036] The multi-path combustion engine system is connected with the coarse filtration system through a pneumatic lifting pump, and each combustion engine system comprises:

[0037] The compressor is used to compress the waste gas after removing the oil mist and the ambient air;

[0038] The combustion cylinder is connected with the compressor and the natural gas input pipeline respectively, and the natural gas is burned in the combustion cylinder, and its waste gas is used as combustion-supporting gas; a gas compressor is arranged on the natural gas input pipeline;

[0039] The turbine is connected with the combustion cylinder, and the high-temperature and high-pressure working medium generated in the combustion cylinder drives the turbine to work;

[0040] The generator is connected with the turbine, and the generator generates electricity through the turbine work, and the generator is connected with the municipal power grid through the power output pipeline;

[0041] The waste heat boiler is connected with the turbine, and the flue gas is introduced into the waste heat boiler for generating steam, and an electric regulating valve is arranged on the pipeline at the front end of the waste heat boiler.

[0042] It should be noted that the waste heat boiler of each gas turbine system is connected with the flue gas discharge pipeline.

[0043] The above system not only realizes the effective treatment of waste gas, but also generates additional electric energy and heat energy, providing high-quality energy support for tire production and manufacturing, greatly reducing production cost. By converting the system equipment that may be considered as energy consumption into energy utilization system equipment, the application of the gas turbine system in treating VOC brings significant economic benefits to the tire manufacturing industry.

[0044] As a preferred embodiment provided in the present embodiment, the coarse filtration system comprises:

[0045] The powder spraying and oil removing device is connected with the waste gas input pipeline and the lime powder bin respectively, and the lime powder in the lime powder bin is blown into the powder spraying and oil removing device by the air blower, so as to mix the oil mist in the waste gas with the lime powder to form particulate matter;

[0046] The activated carbon and filter core adsorption and filtration device is connected with the powder spraying and oil removing device, and the particulate matter is removed to meet the air inlet requirement of the air compressor.

[0047] The waste gas in the tire factory area contains malodorous gas, dust, non-methane total hydrocarbon and the like, and the main components are carbon disulfide, carbon tetrafluoride, hexane, toluene, hydroquinone and the like. It has the characteristics of containing oil mist, needing pretreatment, large air volume and low concentration. The lime powder is blown into the powder spraying and oil removing device from the lime powder bin by the air blower, mixed with the oil mist in the waste gas to form particulate matter, and then the waste gas enters the activated carbon and filter core adsorption and filtration device to remove the particulate matter, meeting the air inlet requirement of the air compressor. The waste gas as combustion-supporting air and the ambient air enter the air compressor for compression, and is mixed with the natural gas after being compressed by the gas compressor in the combustion cylinder for combustion. At the same time of combustion of the natural gas, the non-methane total hydrocarbon and other pollutants in the waste gas are oxidized into carbon dioxide and water, forming high-temperature and high-pressure working medium to drive the turbine to work and drive the generator to generate electricity. The flue gas after work still contains a high amount of heat, which can be introduced into the waste heat boiler to generate steam. Therefore, the system can not only remove harmful substances in the waste gas, but also generate thermal and electric energy, save the cost of waste gas treatment equipment, improve the energy utilization efficiency, and reduce the energy cost.

[0048] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A combustion engine system for handling VOCs in the tire manufacturing industry, characterized in that, The utility model relates to a kind of waste heat power generation system, comprising: Coarse filtration system for removing oil mist in exhaust gas; Multi-path combustion engine system connected with coarse filtration system, each path combustion engine system comprises: Compressor for compressing exhaust gas after removing oil mist and ambient air; Combustion cylinder connected with compressor and natural gas input pipeline respectively, natural gas is burned in the combustion cylinder, and its exhaust gas is used as combustion-supporting gas; Turbine connected with combustion cylinder, high-temperature and high-pressure working medium generated in the combustion cylinder drives turbine to work.

2. The gas turbine system for handling VOCs in the tire manufacturing industry, as claimed in claim 1 wherein, Each path combustion engine system further comprises: Generator connected with turbine, which is driven by turbine to generate electricity.

3. The gas engine system for handling VOCs in the tire manufacturing industry of claim 2, wherein, The generator is connected with municipal power grid through power output pipeline.

4. The gas turbine system for handling VOCs in the tire manufacturing industry, as claimed in claim 1 wherein, Each path combustion engine system further comprises: Waste heat boiler connected with turbine, which passes flue gas into waste heat boiler to generate steam.

5. The gas turbine system for handling VOCs in the tire manufacturing industry, as claimed in claim 1 wherein, Natural gas input pipeline is provided with gas compressor.

6. The gas turbine system for handling VOCs in the tire manufacturing industry, as claimed in claim 4 wherein, Electric regulating valve is provided on pipeline between turbine and waste heat boiler.

7. The gas turbine system for handling VOCs in the tire manufacturing industry, as claimed in claim 1 wherein, Pneumatic booster pump is provided between coarse filtration system and each path combustion engine system.

8. The gas turbine system for handling VOCs in the tire manufacturing industry, as claimed in claim 1 wherein, The coarse filtration system comprises: Powder spraying oil removal device for mixing oil mist in exhaust gas with lime powder to form particulate matter; Activated carbon and filter core adsorption filter device connected with powder spraying oil removal device to remove particulate matter to meet the air intake requirement of compressor.

9. The gas turbine system for handling VOCs in the tire manufacturing industry, as claimed in claim 8 wherein, The powder spraying oil removal device is connected with exhaust gas input pipeline and lime powder bin respectively.

10. The gas turbine system for handling VOCs in the tire manufacturing industry, as claimed in claim 9 wherein, Lime powder in the lime powder bin is blown into powder spraying oil removal device by air blower.

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