Manhole cover opening and closing apparatus of reaction vessel

Abstract

The invention belongs to the technical field of chemical equipment, and provides a manhole cover switch device for a reaction kettle, including a kettle body, a manhole and a support frame are arranged on the top of the kettle body, the position of the support frame matches the position of the manhole, and the support frame It is a cuboid component. One side of the support frame is hinged with the kettle body, and the other side is detachably connected with the kettle body. There is a lead screw connected to the support frame in rotation, and the screw nut is threaded on the lead screw. , the lead screw nut is connected to the manhole cover through the connecting piece, the support frame is provided with a sliding groove matching the lead screw nut and the connecting piece, the lead screw has an extension extending out of the support frame, and the extension is connected with a rotating handwheel; A locking mechanism is provided between the hole cover and the feed inlet. The invention reduces the problem of equipment damage caused by the opening and closing of the manhole cover of the reaction kettle, facilitates stable opening and closing operations of the manhole cover, and improves the convenience of use.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a manhole cover switch device for a reaction kettle. Background technique [0002] In chemical production, many materials must be reacted in a closed reactor, and most of the raw materials need to be added through the manhole of the reactor, so the manhole cover of the reactor has to be opened or closed frequently according to production needs. Because the materials of the manhole of the reactor and the manhole cover of the reactor are all enamel products, the price is very high, and the manhole cover of the reactor itself is very heavy. The holes are connected as a whole, and there are the following problems in actual production: due to the heavy weight of the manhole cover of the reactor, if the force is not applied properly when the manhole cover of the reactor is closed, the impact force of the manhole cover of the reactor falling will cause a reaction The enamel ...

AI Technical Summary

Problems solved by technology

Because the materials of the manhole of the reactor and the manhole cover of the reactor are all enamel products, the price is very high, and the manhole cover of the reactor itself is very heavy. The holes are connected as a whole, and there are the following problems in actual production: due to the heavy weight of the manhole cover of the reactor, if the force is not applied properly when the manhole cover of the reactor is closed, the impact force of the manhole cover of the reactor falling will cause a reaction The enamel on the manhole of the kettle or the manhole cover of the reaction kettle will fall off, which will damage the equipment, cause economic losses, and is not conducive to production; after the production cycle is completed, the manhole cover of the reaction kettle needs to be opened, because the pressure in the reaction kettle is negative pressure, so when opening When the manhole cover of the reactor needs to be applied with great force, it is difficult to operate; at the same time, because the manhole of the reactor is large enough to accommodate the human body itself, and the manhole cover of the reactor is very heavy, if the operation is not done properly, it will be harmful to the operator. said to be dangerous

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