Emergency treatment system for chloroacetic acid reaction kettle accidents
An emergency treatment, chloroacetic acid technology, applied in the direction of series/parallel reaction, carboxylate preparation, chemical/physical process, etc., can solve the problems of casualties, property, personnel cannot enter the site, loss, etc., so as to improve utilization rate and avoid Accidents, short-term effects
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Embodiment 1
[0022] like figure 1 As shown, a chloroacetic acid reactor accident emergency treatment system includes a chloroacetic acid production system and an emergency switching system; the chloroacetic acid production system includes a main reaction kettle 10, a secondary reaction kettle 20, a primary condensation circuit, a secondary Condensation loops and tertiary condensation loops.
[0023] The main reaction still 10 is used as the main reaction still, and the auxiliary reaction still 20 is connected in series with it, the gas overflowing from the main reaction still 10 passes through the reflux of the primary condensation circuit, the auxiliary reaction absorption of the auxiliary reaction still 20, the reflux of the secondary condensation circuit and The tertiary condensing loop is refluxed to recover effective reactants.
[0024] The specific equipment connection and response are as follows:
[0025] The inlet of the main reaction kettle 10 is connected with the first chlorin...
Embodiment 2
[0045] Such as figure 2 As shown, the following structure is added on the basis of the structure of Example 1, so that after the main reaction kettle 10 completes the reaction, there is no need to stop production, but the auxiliary reaction kettle 20 is used as the main reaction kettle, and in the process of heating up the auxiliary reaction kettle 20 , pour away the feed liquid in the main reaction kettle 10, then add acetic acid and catalyst sulfur to the main reaction kettle 10 again and keep warm. Make full use of time and improve work efficiency.
[0046] The specific structure is:
[0047] The inlet of the reaction auxiliary kettle 20 is connected with a second chlorine inlet pipe 21 that feeds chlorine into its interior;
[0048] The gas outlet of the second condenser 40 is also communicated with the bottom of the main reaction kettle 10 inner cavity, and the gas overflowing from the gas outlet of the second condenser 40 enters the main reaction kettle 10 for reactio...
Embodiment 3
[0070] The difference from Embodiment 1 is that the end of the emergency pipeline 70 is provided with a pressure sensor 76, the signal output end of the pressure sensor 76 is connected to the signal input end of the controller, and the control output end of the controller is connected to the alarm device. When the chloroacetic acid production system is producing and reacting, the first emergency relief valve 73 should be in the closed state, and the pressure sensor 76 can detect whether the first emergency relief valve 73 is closed tightly, so as to prevent the reaction gas from being directly discharged from the emergency pipeline 70, causing Raw materials are wasted. When the pressure value transmitted by the pressure sensor 76 to the controller is greater than 0, it means that there is gas passing through the emergency pipeline 70, and the controller will control the activation of the alarm device to warn the staff to maintain the first emergency relief valve 73. Wherein, ...
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