Nylon acid ester synthesis reaction kettle capable of purifying exhaust gas
By adding purification components to the reactor for nylonate synthesis, the exhaust gas is purified by using activated carbon packs and exhaust fans, the impact of exhaust gas emissions on the environment and workers' health is solved, and efficient purification and safe emission of exhaust gas are achieved.
Patent Information
- Application Number
- CN202420787569.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The existing reactors for nylonate synthesis cannot handle the generated waste gas, which affects environmental pollution and workers' health.
A reactor including a kettle body, agitating assembly, heating assembly and purification assembly was designed. The purifying assembly was purified by activated carbon packs and exhaust fans, and the purification effect was monitored through a gas toxicity detector.
Effectively absorb toxins in waste gas, reduce environmental pollution, ensure workers' health, and ensure that the waste gas meets emission standards through repeated purification.
Smart Images
Figure CN222131913U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of a reaction kettle for nylon ester synthesis, and in particular relates to a reaction kettle for nylon ester synthesis which can purify exhaust gas. Background Art
[0002] In order to make nylon and engineering plastics, a large amount of adipic acid is needed. However, adipic acid will produce a large amount of nylon acid as a by-product during the production process. In order to avoid the waste of nylon acid, existing manufacturers often use reactors to esterify methanol, n-butanol, isobutanol, etc. with nylon acid to synthesize nylon acid esters that can be used as plasticizers or coating film-forming agents.
[0003] At present, the existing reactors used for nylon ester synthesis do not have the ability to treat waste gas. The large amount of waste gas generated after discharge will not only affect the surrounding environment but also affect the health of employees involved in the nylon ester synthesis.
[0004] Therefore, in order to solve the problem that a large amount of waste gas will be generated during the synthesis of the above-mentioned nylon esters, and direct discharge will have adverse effects on the surrounding employees and the environment, the existing nylon ester synthesis reactor is improved to increase the function of purifying exhaust gas. Utility Model Content
[0005] In order to overcome the problem that the existing nylon ester reactor is unable to purify the waste gas generated during the production process.
[0006] The technical scheme of the utility model is: a reaction kettle for nylon ester synthesis capable of purifying exhaust gas, comprising a kettle body, a kettle cover, a feed pipe, a stirring component, a heating component and a purification component; a kettle cover is installed on the kettle body, a feed inlet is provided on the kettle cover, a feed inlet is fixedly connected to the kettle cover and the feed pipe which is connected with the feed inlet is fixedly connected to the kettle cover, an exhaust port is provided on the kettle cover, a stirring component is arranged in the kettle body, a heating component is arranged outside the kettle body, and a purification component for purifying exhaust gas is arranged on one side of the kettle body.
[0007] Preferably, by adding a device to the existing nylon ester synthesis reactor to purify the toxic gas generated during the synthesis, the adverse effects of the emission on the surrounding environment and workers can be reduced, and the stirring component and the heating component can accelerate the rate of the synthesis reaction.
[0008] Preferably, the stirring assembly includes a stirring shaft and a motor; the stirring shaft is arranged in the kettle body, and a transmission element connected to the motor on the stirring shaft is installed on the kettle cover. After the motor is started, the stirring shaft is driven to rotate in the reactor to fully mix the raw materials, expand their contact area, and increase the reaction rate.
[0009] Preferably, the heating assembly includes an outer barrel and an electric heating rod; the outer side of the kettle body is sleeved with an outer barrel with a water inlet and outlet pipe, water is filled between the outer barrel and the kettle body, and the outer barrel is inserted with an electric heating rod sleeved with a waterproof outer shell. The water between the outer barrel and the kettle body is heated by the electric heating rod, and the water then transfers the heat to the inside of the kettle body through the outer wall of the kettle body, thereby heating the raw materials inside the kettle body and increasing the reaction rate.
[0010] Preferably, a rubber sealing plug matching the feed pipe is inserted into the feed pipe, and a thermometer is inserted on the kettle body. The rubber sealing plug can block the feed pipe to prevent exhaust gas from leaking from the feed pipe. The thermometer can monitor the temperature in the kettle body in real time to prevent excessive temperature from affecting the reaction products.
[0011] Preferably, the purification component includes a purification box and an activated carbon bag; a purification box connected to the exhaust port through a pipe with a valve installed is provided on one side of the kettle body; an activated carbon bag is placed in the purification box, and the purification box can wrap the toxic gas to avoid exposure of the toxic gas. The activated carbon in the activated carbon bag has a porous structure and can effectively absorb toxicity.
[0012] Preferably, the purification component further includes a partition and an exhaust fan; a baffle is fixedly connected inside the purification box to divide the upper and lower parts, and the exhaust fan is installed on the baffle. The partition can divide the purification box into two parts, and the exhaust fan can draw the gas in the upper part back to the lower layer.
[0013] Preferably, the purification component also includes a gas toxicity detector; an exhaust pipe with a valve installed is fixedly connected to the purification box, and a gas toxicity detector is plugged into the purification box. The gas toxicity detector is an existing product that can measure the content of toxic gas in the gas in the upper layer of the purification box to prevent incomplete purification.
[0014] Beneficial effects of the utility model:
[0015] 1. By adding a purification component to the existing nylon ester synthesis reactor, the waste gas generated during the synthesis of nylon ester is purified. The porous structure of the activated carbon package is used to absorb the toxins contained in the waste gas, so as to avoid direct discharge of waste gas to pollute the surrounding environment and protect the health of the workers. The purification component can detect the toxic content of the waste gas, and the waste gas that does not meet the emission requirements will be repeatedly purified to improve the purification effect;
[0016] 2. The rubber sealing plug on the feed pipe can block the feed pipe during exhaust to prevent leakage of the feed pipe in the exhaust gas and protect the health of surrounding workers;
[0017] 3. About 60-80℃ is a commonly used temperature for esterification reaction, which can accelerate the reaction rate. A thermometer can be used to monitor the temperature in the kettle to avoid side reactions caused by excessively high temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The first three-dimensional structure schematic diagram of the reaction kettle for nylon ester synthesis capable of purifying exhaust gas of the utility model is shown;
[0019] Figure 2 The second three-dimensional structure schematic diagram of the reactor for nylon ester synthesis capable of purifying exhaust gas of the utility model is shown;
[0020] Figure 3 The three-dimensional structure schematic diagram of the stirring assembly of the reaction kettle for nylon ester synthesis capable of purifying exhaust gas of the utility model is shown;
[0021] Figure 4 The schematic diagram of the cross-sectional three-dimensional structure of the reaction kettle for nylon ester synthesis capable of purifying exhaust gas of the utility model is shown;
[0022] Figure 5 Shown is a schematic diagram of the cross-sectional three-dimensional structure of a purification component of a reactor for nylon ester synthesis that can purify exhaust gas according to the utility model.
[0023] Explanation of the accompanying reference numerals: 1. kettle body; 2. kettle cover; 3. feed pipe; 401. stirring shaft; 402. motor; 501. outer barrel; 502. electric heating rod; 6. rubber sealing plug; 7. thermometer; 801. purification box; 802. activated carbon bag; 803. partition; 804. exhaust fan; 805. gas toxicity detector. DETAILED DESCRIPTION
[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0025] See also Figure 1-3 The utility model provides an embodiment: a nylon ester synthesis reactor capable of purifying exhaust gas comprises a reactor body 1, a reactor cover 2, a feed pipe 3, a stirring component, a heating component, and a purification component; a reactor body 1 is installed with a reactor cover 2, a feed port is provided on the reactor cover 2, a feed pipe 3 which is connected with the feed port is fixedly connected to the reactor cover 2, an exhaust port is provided on the reactor cover 2, a stirring component is provided inside the reactor body 1, a heating component is provided outside the reactor body 1, and a purification component for purifying exhaust gas is provided on one side of the reactor body 1. By adding the purification component to the existing nylon ester synthesis reactor, toxic gases generated during synthesis can be purified, and the adverse effects on the surrounding environment and workers during emission can be reduced. The stirring component and the heating component can accelerate the rate of the synthesis reaction.
[0026] See also Figure 2-4In this embodiment, the stirring assembly includes a stirring shaft 401 and a motor 402; the stirring shaft 401 is arranged in the kettle body 1, and the transmission element is installed on the kettle cover 2 to connect the motor 402 on the stirring shaft 401; the heating assembly includes an outer barrel 501 and an electric heating rod 502; the outer side of the kettle body 1 is sleeved with an outer barrel 501 with a water inlet and outlet pipe, and water is filled between the outer barrel 501 and the kettle body 1, and the outer barrel 501 is inserted with an electric heating rod 502 sleeved with a waterproof shell, and the feed pipe 3 is inserted with a rubber sealing plug 6 matching the feed pipe 3, and the kettle body 1 is inserted with a thermometer 7. After the motor 402 is started, it drives the stirring shaft 401 to rotate in the reactor, so that the raw materials are fully mixed, their contact area is expanded, and the reaction rate is increased. The water between the outer barrel 501 and the kettle body 1 is heated by the electric heating rod 502, and the water then transfers the heat to the inside of the kettle body 1 through the outer wall of the kettle body 1, which plays a role in heating the raw materials inside the kettle body 1 and can increase the reaction rate. The rubber sealing plug 6 can block the feed pipe 3 to prevent the exhaust gas from leaking from the feed pipe 3. The thermometer 7 can monitor the temperature in the kettle body 1 in real time to prevent the reaction product from being affected by excessive temperature.
[0027] See also Figure 4-5 In this embodiment, the purification component includes a purification box 801 and an activated carbon bag 802; a purification box 801 connected to the exhaust port through a pipe installed with a valve is provided on one side of the kettle body 1; an activated carbon bag 802 is placed in the purification box 801, and the purification component includes a partition 803 and an exhaust fan 804; a baffle dividing the upper and lower parts is fixedly connected in the purification box 801, and an exhaust fan 804 is installed on the baffle, and the purification component also includes a gas toxicity detector 805; an exhaust port installed with a valve is fixedly connected to the purification box 801. Tube, a gas toxicity detector 805 is inserted into the purification box 801, the purification box 801 can wrap the toxic gas to avoid exposure of the toxic gas, the activated carbon in the activated carbon bag 802 has a porous structure, which can effectively absorb the toxicity, the partition 803 can divide the purification box 801 into two parts, the exhaust fan 804 can draw the gas in the upper part back to the lower layer, the gas toxicity detector 805 is an existing product, which can measure the content of toxic gas in the gas in the upper layer of the purification box 801 to prevent incomplete purification.
[0028] When working, the staff first pours the raw materials needed for synthesizing nylon ester into the reactor body 1 through the feed pipe 3, then inserts the rubber sealing plug 6 into the feed pipe 3, and pours water as a heat medium between the outer barrel 501 and the reactor body 1 through the water inlet and outlet pipes, starts the motor 402, and electrically drives the stirring shaft 401 to stir in the barrel to fully mix the raw materials and accelerate the reaction rate, and starts the electric heating rod 502, which heats the water between the outer barrel 501 and the reactor body 1. The hot water transfers heat to the reactor body 1 through the outer wall of the reactor body 1, thereby increasing the temperature inside the reactor body 1. The temperature inside the reactor is detected by the thermometer 7 to keep it at the optimal temperature. Once the temperature is too high, the electric heating rod 502 is stopped;
[0029] Open the valve on the pipeline, and the toxic waste gas produced by the esterification reaction enters the purification box 801 along the pipeline, and contacts the activated carbon bag 802 in the purification box 801. The porous structure of the activated carbon bag 802 is conducive to its absorption of the toxicity of the waste gas. The waste gas passes through the activated carbon bag 802 and moves upward along the gap between the partition 803 and the wall of the purification box 801. The gas toxicity detector 805 detects the passing gas. When it exceeds the standard, the exhaust fan 804 is started, and the exhaust fan 804 draws the gas back to the lower layer, and it is purified by the activated carbon bag 802 again. After repeated multiple times, it is discharged through the exhaust pipe until it meets the standard.
[0030] Through the above steps, a purification component is added to the existing nylon ester synthesis reactor to purify the waste gas generated in the process of synthesizing nylon ester. The porous structure of the activated carbon bag 802 is used to absorb the toxins contained in the waste gas, so as to avoid direct discharge of the waste gas to pollute the surrounding environment and protect the health of the workers. The purification component can detect the toxic content of the waste gas, and the waste gas that does not meet the emission requirements will be repeatedly purified to improve the purification effect, so as to solve the problem that the existing nylon ester reactor cannot purify the waste gas generated in the production process.
[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.
Claims
1. A reaction kettle for nylon ester synthesis capable of purifying exhaust gas, comprising a kettle body (1), a kettle cover (2), and a feed pipe (3); characterized in that: The kettle body (1) further comprises a stirring component, a heating component and a purification component; a kettle cover (2) is installed on the kettle body (1), a material inlet is provided on the kettle cover (2), a material inlet pipe (3) which is in communication with the material inlet is fixedly connected to the kettle cover (2), an exhaust port is provided on the kettle cover (2), a stirring component is provided inside the kettle body (1), a heating component is provided outside the kettle body (1), and a purification component for purifying exhaust gas is provided on one side of the kettle body (1).
2. A nylon ester synthesis reactor capable of purifying exhaust gas according to claim 1, characterized in that: The stirring assembly comprises a stirring shaft (401) and a motor (402); the stirring shaft (401) is arranged in the kettle body (1), and a transmission element connected to the motor (402) on the stirring shaft (401) is installed on the kettle cover (2).
3. A nylon ester synthesis reactor capable of purifying exhaust gas according to claim 1, characterized in that: The heating assembly comprises an outer barrel (501) and an electric heating rod (502); the outer barrel (501) provided with a water inlet and outlet pipe is sleeved on the outer side of the kettle body (1); water is filled between the outer barrel (501) and the kettle body (1); and the electric heating rod (502) sleeved on a waterproof shell is inserted into the outer barrel (501).
4. A nylon ester synthesis reactor capable of purifying exhaust gas according to claim 1, characterized in that: A rubber sealing plug (6) matching the feeding pipe (3) is inserted into the feeding pipe (3), and a thermometer (7) is inserted into the kettle body (1).
5. The reaction kettle for nylon ester synthesis capable of purifying exhaust gas according to claim 1, characterized in that: The purification component comprises a purification box (801) and an activated carbon bag (802); a purification box (801) connected to the exhaust port via a pipeline with a valve installed is arranged on one side of the kettle body (1); and an activated carbon bag (802) is placed in the purification box (801).
6. A nylon ester synthesis reactor capable of purifying exhaust gas according to claim 5, characterized in that: The purification component further comprises a partition (803) and an exhaust fan (804); a baffle dividing the upper and lower parts is fixedly connected inside the purification box (801), and the exhaust fan (804) is installed on the baffle.
7. A nylon ester synthesis reactor capable of purifying exhaust gas according to claim 6, characterized in that: The purification component also includes a gas toxicity detector (805); an exhaust pipe with a valve installed is fixedly connected to the purification box (801), and the gas toxicity detector (805) is plugged into the purification box (801).