CN205269671U - Two spiral shell belt reation kettle - Google Patents

Abstract

The utility model discloses a double-screw ribbon reaction kettle, which comprises a kettle body. The lower end of the kettle body is provided with a discharge door. The kettle wall of the kettle body is a hollow interlayer, and a heating wire is arranged in the hollow interlayer, and a stirring shaft is arranged in the kettle body. , the first stirring blade and the second stirring blade, the first stirring blade rotates clockwise around the stirring shaft from the bottom to the top, the second stirring blade rotates counterclockwise around the stirring shaft from the bottom to the top, and the first stirring blade The bottom of the bottom is connected with the bottom of the second stirring blade, and the stirring shaft passes through the joint of the bottom of the first stirring blade and the second stirring blade, and the stirring shaft is slidingly connected with the first stirring blade and the second stirring blade, and the stirring shaft is connected with the first stirring blade A clamping piece is provided between the blade and the second stirring blade, and the rotation pitch of the first stirring blade and the second stirring blade are the same. The technical problem to be solved by the utility model is to provide a double-ribbon-ribbon reactor with uniform stirring and good stirring effect for viscous liquids.

Description

Double Ribbon Reactor

technical field

The utility model relates to the field of chemical equipment, in particular to a double-ribbon type reaction kettle.

Background technique

The reactor is a comprehensive reaction vessel, and the structure, function and configuration accessories of the reactor are designed according to the reaction conditions. The pre-set reaction steps can be completed with a high degree of automation from the initial feed-reaction-discharge, and the temperature, pressure, mechanical control (stirring, blasting, etc.), reactants/products during the reaction process Important parameters such as concentration are strictly regulated. Its structure is generally composed of kettle body, transmission device, stirring device, heating device, cooling device and sealing device. Corresponding supporting auxiliary equipment: fractionation column, condenser, water separator, collection tank, filter, etc.

The stirring device in the existing still body usually includes a stirring shaft and a stirring blade, and the stirring blade is usually helical or single-bladed, but these two kinds of stirring blades can only play a role in stirring the larger liquid. Simply generate shear force to stir it, therefore, the stirring area is limited to the liquid around the stirring blade, while the area far away from the stirring blade cannot be in contact with the stirring blade, resulting in unshear stirring, resulting in liquid in the kettle The phenomenon of uneven mixing and poor mixing effect.

Utility model content

The technical problem to be solved by the utility model is to provide a double-ribbon-ribbon reactor with uniform stirring and good stirring effect for viscous liquids.

In order to solve the above-mentioned technical problems, the utility model provides the following technical scheme: a double-ribbon-ribbon reaction kettle, including a kettle body, the lower end of the kettle body is provided with a discharge door, the kettle wall of the kettle body is a hollow interlayer, and the hollow interlayer is equipped with Heating wire, the kettle body is provided with a stirring shaft, a first stirring blade and a second stirring blade. The stirring shaft is a hollow shaft. Rotate counterclockwise from the bottom to the top, and the bottom of the first stirring blade is connected to the bottom of the second stirring blade, the stirring shaft passes through the joint between the first stirring blade and the bottom of the second stirring blade, and the stirring shaft and the first stirring blade , The second stirring blade is slidingly connected, and a clamping piece is provided between the stirring shaft, the first stirring blade and the second stirring blade, and the rotation pitch of the first stirring blade and the second stirring blade are the same.

In the double-ribbon reactor adopting the technical solution of the utility model, one of the first stirring blade and the second stirring blade rotates counterclockwise, and the other rotates clockwise, thereby forming a double-ribbon type, and the first stirring blade and the second The bottom of the stirring blade is connected. When stirring with the rotation of the stirring shaft, the external double helix lifts the solution from bottom to top. The solution rotates in a circular wave shape and collects in the middle of the stirring shaft. The central stirring will spiral the collected solution from top to bottom. Shaped transmission, so that the reaction solution can be tumbling up and down in all directions in the container, different substances can be fully fused, and the reaction is more thorough and complete; in addition, the stirring shaft is slidingly connected with the first stirring blade and the second stirring blade, and the stirring shaft is connected with the first stirring blade. There is a clamping piece between the stirring blade and the second stirring blade. When not in use, the first stirring blade and the second stirring blade can be slid off from the stirring shaft, and a new stirring blade can be relocated, which is used to stir the mixture with a relatively dilute concentration. liquid.

The working principle and beneficial effects of the utility model are as follows: put liquid and materials into the kettle body, heat the heating wire in the hollow interlayer, heat the kettle body, when the materials melt, turn the stirring shaft, the first stirring blade and the second The outer double helix of the stirring blade lifts the solution from bottom to top, the solution rotates in a circular wave shape and collects in the middle of the stirring shaft, and the first and second stirring blades in the middle convey the collected solution in a spiral form from top to bottom , so that the reaction solution can be stirred up and down in all directions in the container, and can be fully fused, and the reaction is more thorough and complete. The stirring shaft slides off to replace other stirring blades for stirring. Compared with the existing single-piece spiral or single-blade stirring blades, the stirring blades of the utility model not only stirs evenly, but also has good stirring effects and is easy to replace, and is suitable for stirring viscous liquids.

Further, the stirring shaft is a hollow shaft body, the upper end of the stirring shaft is a feed inlet, and the lower end of the stirring shaft is a feed inlet. Feed from the stirring shaft to avoid splashing of liquid due to height difference.

Further, a plurality of reinforcing ribs are provided on the first stirring blade and the second stirring blade. The reinforcing rib can not only play the role of shearing and stirring, but also can play the role of strengthening the first stirring blade and the second stirring blade.

Further, the diameter of the kettle body is 1800mm.

Further, the first stirring blade and the second stirring blade have a pitch of 1200 mm, a width of 100 mm, and a thickness of 12 mm. It is suitable for stirring and reacting materials whose viscosity is greater than 400mPa·s.

Description of drawings

Fig. 1 is the schematic cross-sectional view of the embodiment of the utility model twin-ribbon type reactor.

In the figure: kettle body 1, heating wire 2, stirring shaft 3, first stirring blade 4, second stirring blade 5, reinforcing rib 6.

detailed description

As shown in Figure 1, the utility model double-screw ribbon reaction kettle includes a kettle body 1, the diameter of the kettle body 1 is 1800mm, the lower end of the kettle body 1 is provided with a discharge door, and the kettle wall of the kettle body 1 is a hollow interlayer , and a heating wire 2 is provided in the hollow interlayer, a stirring shaft 3, a first stirring blade 4 and a second stirring blade 5 are arranged in the kettle body 1, the stirring shaft 3 is a hollow shaft body, and the upper end of the stirring shaft 3 is a material inlet , the lower end of the stirring shaft 3 is a feeding port, the pitch of the first stirring blade 4 and the second stirring blade 5 is 1200mm, the width is 100mm, the thickness is 12mm, the reinforcing rib 6 is T-shaped steel, the first stirring blade 4 and the second A plurality of reinforcing ribs 6 are provided on the stirring blades 5, the first stirring blade 4 is set to rotate clockwise around the stirring shaft 3 from the bottom to the top, and the second stirring blade 5 is set to rotate counterclockwise around the stirring shaft 3 from the bottom to the top , and the bottom of the first stirring blade 4 is connected with the bottom of the second stirring blade 5, the stirring shaft 3 passes through the junction of the first stirring blade 4 and the bottom of the second stirring blade 5, the stirring shaft 3 is connected with the first stirring blade 4, the second stirring blade 5 The two stirring blades 5 are slidingly connected, and a clamping piece is provided between the stirring shaft 3 and the first stirring blade 4 and the second stirring blade 5, and the clamping piece adopts a pin shaft, and the first stirring blade 4 and the second stirring blade 5 The rotation pitch is the same.

In the specific implementation process, the material is added from the upper end of the stirring shaft 3 to the bottom of the kettle body 1, then the heating wire 2 is turned on, the kettle body 1 is heated, and then the stirring shaft 3 is turned on, and the stirring shaft 3 rotates, thereby driving the first stirring blade 4 and the second stirring blade 5 rotate, so that the material is stirred from bottom to top, fully stirred evenly, and finally the material can be released from the discharge door. When the liquid to be stirred is relatively thin, open the pin shaft and put the first stirring blade 4. The second stirring blade 5 slides off from the stirring shaft 3 and is replaced by a single-piece stirring blade.

For those skilled in the art, under the premise of not departing from the structure of the utility model, some deformations and improvements can also be made, which should also be regarded as the protection scope of the utility model, and these will not affect the implementation of the utility model Effects and utility of patents.

Claims (5)

1. Double-screw ribbon reaction kettle, characterized in that: it includes a kettle body, the lower end of the kettle body is provided with a discharge door, the kettle wall of the kettle body is a hollow interlayer, and a heating wire is arranged in the hollow interlayer, and the kettle body is provided with a stirring shaft, the first stirring blade and the second stirring blade, the first stirring blade rotates clockwise around the stirring shaft from the bottom to the top, the second stirring blade rotates counterclockwise around the stirring shaft from the bottom to the top, and the first stirring The bottom of the blade is connected to the bottom of the second stirring blade, and the stirring shaft passes through the joint at the bottom of the first stirring blade and the second stirring blade, and the stirring shaft is slidingly connected with the first stirring blade and the second stirring blade, and the stirring shaft is connected with the first stirring blade. A clip is provided between the stirring blade and the second stirring blade, and the rotation pitch of the first stirring blade and the second stirring blade are the same. 2. The double-ribbon reactor according to claim 1, characterized in that: the stirring shaft is a hollow shaft, the upper end of the stirring shaft is a feeding port, and the lower end of the stirring shaft is a feeding port. 3. The double-ribbon reactor according to claim 2, characterized in that: both the first stirring blade and the second stirring blade are provided with a plurality of reinforcing ribs. 4. The double-ribbon reactor according to claim 3, characterized in that: the diameter of the reactor body is 1800mm. 5. The double-ribbon reactor according to claim 4, characterized in that: the pitch of the first stirring blade and the second stirring blade is 1200mm, the width is 100mm, and the thickness is 12mm.