A modified silicone sealant exhaust treatment device
Patent Information
- Application Number
- CN202521895431.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-03
AI Technical Summary
大多数改性硅酮密封胶产品的用途都十分广泛，所以生产量都比较大，其生产工序中的配料、混合、研磨、脱水缩合、罐装均会产生废气，这些废气主要是原材料带入的小分子聚醚、小分子脂肪酸等挥发性有机物、生产过程中生成的小分子醇类气体(助剂生成)、粉尘(填料碳酸钙、二氧化硅投料和研磨时产生)，这些废气成分复杂、风量大、浓度波动较大，采用单一的技术往往难以达标，但现有技术普遍是采用单一的处理技术，将废气简单处理后进行排放，因此对环境依然具有伤害
[0013] This invention first collects all the waste gas generated in the production process through a gas collection hood to a pretreatment unit. The dust, water droplets (mist), and acidic substances in the waste gas are removed by a dust collector, spray tower, and demister to prevent blockage or corrosion of subsequent core treatment equipment. Then, the gas enters a zeolite rotor device, where VOCs (volatile organic compounds) and siloxane molecules are adsorbed and trapped. The gas is then transported to an RTO (Regenerative Thermal Oxidizer), where the organic matter is completely oxidized and decomposed into CO2 and H2O at a high temperature (≥800℃). The treated gas meets emission standards and can be discharged through a chimney.
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Figure CN224640717U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical production equipment technology, specifically to a modified silicone sealant waste gas treatment device. Background Technology
[0002] Modified silicone sealant is a paste-like substance made by mixing terminally silanized polyether as the main raw material with crosslinking agents, fillers, plasticizers, coupling agents, and catalysts under vacuum. It cures at room temperature by reacting with water in the air to form elastic silicone rubber. Most modified silicone sealant products have a wide range of applications, resulting in large production volumes. The production process, including batching, mixing, grinding, dehydration condensation, and packaging, generates waste gas. This waste gas mainly consists of volatile organic compounds such as small-molecule polyethers and small-molecule fatty acids introduced from the raw materials, small-molecule alcohols (generated from additives), and dust (generated during the feeding and grinding of fillers such as calcium carbonate and silica). These waste gases are complex in composition, have large volumes, and fluctuate significantly in concentration. Using a single technology often fails to meet standards, but current technologies generally employ simple treatment methods to treat the waste gas before emission, thus still causing environmental damage. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a modified silicone sealant waste gas treatment device, which overcomes the technical defects in the prior art, can perform combined treatment of modified silicone sealant waste gas, has good treatment effect, and ensures environmental safety.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0005] A modified silicone sealant exhaust gas treatment device includes gas collection hoods installed at each production stage. The gas collection hoods are connected to the inlet of a bag filter dust collector via pipes. The outlet of the bag filter dust collector is connected to the inlet of a spray tower via pipes. The outlet of the spray tower is connected to the inlet of a demister via pipes. The outlet of the demister is connected to the inlet of a zeolite rotor device via pipes. The outlet of the zeolite rotor device is connected to the inlet of an RTO (regenerative thermal oxidizer) incinerator via pipes. The outlet of the RTO incinerator is connected to a chimney via pipes.
[0006] Preferably, the bag filter is a pulse jet bag filter, model DMC-120, manufactured by Botou Wanheng Dust Removal Equipment Co., Ltd.
[0007] Preferably, the spray tower is a packed spray tower equipped with a sodium hydroxide solution spraying device. The model is PPH-60, and the manufacturer is Shandong Shengbao Fiberglass Co., Ltd.
[0008] Preferably, the demister is an SP type wire mesh demister. The manufacturer is Hebei Beishai Wire Mesh Factory.
[0009] Preferably, the zeolite rotor device is an integrated zeolite rotor machine. The model is SL-C, and the manufacturer is Shandong Zhimaide Environmental Protection Technology Co., Ltd.
[0010] Preferably, the RTO incineration device is a three-tower RTO device. The model number is SDSY-RTO-20000, and the manufacturer is Shandong Shiyi Environmental Technology Co., Ltd.
[0011] Preferably, an exhaust fan is installed on the conveying pipeline between the RTO incinerator and the chimney, and an air cooling device is installed between the RTO incinerator and the exhaust fan. This creates negative pressure in the preceding process, ensuring normal airflow transmission.
[0012] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0013] This invention first collects all the waste gas generated in the production process through a gas collection hood to a pretreatment unit. The dust, water droplets (mist), and acidic substances in the waste gas are removed by a dust collector, spray tower, and demister to prevent blockage or corrosion of subsequent core treatment equipment. Then, the gas enters a zeolite rotor device, where VOCs (volatile organic compounds) and siloxane molecules are adsorbed and trapped. The gas is then transported to an RTO (Regenerative Thermal Oxidizer), where the organic matter is completely oxidized and decomposed into CO2 and H2O at a high temperature (≥800℃). The treated gas meets emission standards and can be discharged through a chimney.
[0014] In summary, this invention can treat modified silicone sealant waste gas in a combined manner, achieving good treatment results and ensuring environmental safety. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;
[0016] In the diagram, 1 is the gas collection hood; 2 is the bag filter; 3 is the spray tower; 4 is the demister; 5 is the zeolite rotor device; 6 is the RTO incinerator; and 7 is the chimney. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Example 1
[0019] like Figure 1As shown, this utility model is a modified silicone sealant waste gas treatment device, including a gas collection hood 1 installed in each production process. The gas collection hood 1 is connected to the air inlet of a bag filter 2 through a pipe. The air outlet of the bag filter 2 is connected to the air inlet of a spray tower 3 through a pipe. The air outlet of the spray tower 3 is connected to the air inlet of a demister 4 through a pipe. The air outlet of the demister 4 is connected to the air inlet of a zeolite rotor device 5 through a pipe. The air outlet of the zeolite rotor device 5 is connected to the air inlet of an RTO incinerator 6 through a pipe. The air outlet of the RTO incinerator 6 is connected to a chimney 7 through a pipe.
[0020] In actual production, the gas collection hoods 1 installed at each production process transport the collected waste gas to the bag filter dust collector 2 to separate particulate matter, and then enter the spray tower 3 to remove acidic gases (such as hydrochloric acid), and then enter the demister 4 to remove water mist in the sprayed waste gas to prevent corrosion or blockage of subsequent equipment; the gas after demistering enters the zeolite rotor device 5 to adsorb and retain the VOCs and siloxane molecules contained in the gas, and then the gas enters the RTO incinerator 6 to thoroughly oxidize and decompose the organic matter at a high temperature of 800 degrees Celsius. The gas after combustion meets the emission standards and can be discharged through the chimney 7.
[0021] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.
Claims
1. A modified silicone sealant waste gas treatment device, characterized in that: The system includes gas collection hoods installed at each stage of production. The gas collection hoods are connected to the air inlet of a bag filter dust collector via pipes. The air outlet of the bag filter dust collector is connected to the air inlet of a spray tower via pipes. The air outlet of the spray tower is connected to the air inlet of a demister via pipes. The air outlet of the demister is connected to the air inlet of a zeolite rotor device via pipes. The air outlet of the zeolite rotor device is connected to the air inlet of an RTO incinerator via pipes. The air outlet of the RTO incinerator is connected to a chimney via pipes.
2. The modified silicone sealant exhaust gas treatment device as described in claim 1, characterized in that: The bag filter is a pulse jet bag filter.
3. The modified silicone sealant exhaust gas treatment device as described in claim 1, characterized in that: The spray tower is a spray packed tower.
4. The modified silicone sealant exhaust gas treatment device as described in claim 1, characterized in that: The demister is a wire mesh demister.
5. The modified silicone sealant waste gas treatment device as described in claim 1, characterized in that: The zeolite rotor device is an integrated zeolite rotor machine.
6. The modified silicone sealant exhaust gas treatment device as described in claim 1, characterized in that: The RTO incineration device is a three-tower RTO device.