A stirring and dispersing reactor for perfluorosulfonic acid resin

Abstract

The utility model relates to a perfluorosulfonic acid resin stirring and dispersing reactor, comprising a stirring and dispersing reactor body and a stirring and dispersing assembly arranged in the stirring and dispersing reactor body; the stirring and dispersing assembly comprises a stirring shaft, a stirring blade arranged at the lower part of the stirring shaft, and a chip receiving plate sleeved at the upper part of the stirring shaft, wherein the chip receiving plate is used to receive the wear debris of the sealing sleeve sleeved at the upper end of the stirring shaft. A chip receiving plate is arranged at the upper part of the stirring shaft in the perfluorosulfonic acid resin stirring and dispersing reactor to receive the wear debris falling from the stirring sleeve, thereby preventing the debris from falling into the solution in the reactor and contaminating the solution.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring, in particular to a stirring and dispersing reaction kettle for perfluorosulfonic acid resin. Background Art

[0002] In the prior art, the process conditions for stirring and dispersing perfluorosulfonic acid resin are 160-250°C and the stirring time is 3-24h. Since the perfluorosulfonic acid resin solution is a strong acid with a pH of 1-2 and is highly corrosive at high temperatures, the stirring and dispersing equipment selected for it generally uses a 316L or Hastelloy kettle body and kettle cover, lined with glass or Teflon, and the agitator is made of 316L or Hastelloy or titanium alloy and Teflon, and some are made of PEEK.

[0003] In addition, the current stirring device of the perfluorosulfonic acid resin stirring and dispersing equipment generally uses magnetic coupling, and the long-term rotation of the stirring shaft is easy to cause the sealing sleeve to wear and drop chips to contaminate the solution in the kettle. And when the process conditions of the stirring and dispersing of perfluorosulfonic acid resin exceed 220℃, it is easy to cause the sealing sleeve to deform, and finally damage the stirring shaft and stirring device. Utility Model Content

[0004] The utility model aims to provide a perfluorosulfonic acid resin stirring and dispersing reactor, which solves the problems in the prior art that the sealing sleeve on the stirring shaft of the perfluorosulfonic acid resin stirring and dispersing reactor wears out for a long time and thus pollutes the solution in the reactor, and is easily deformed at high temperature.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides a perfluorosulfonic acid resin stirring and dispersing reaction kettle, comprising:

[0007] A stirring and dispersing reactor body and a stirring and dispersing component arranged in the stirring and dispersing reactor body; the stirring and dispersing component includes a stirring shaft, stirring blades arranged at the lower part of the stirring shaft and a chip receiving plate sleeved on the upper part of the stirring shaft, and the chip receiving plate is used to receive wear debris of the sealing sleeve sleeved on the upper end of the stirring shaft.

[0008] Furthermore, the stirring and dispersing component also includes a PTFE tube membrane wrapped around the outside of the stirring shaft, and the PTFE tube membrane is used to protect the stirring shaft.

[0009] Furthermore, the thickness of the PTFE tube membrane is 100-200 μm.

[0010] Furthermore, the stirring and dispersing component also includes a PTFE tube membrane fixing disk, and the PTFE tube membrane fixing disk is arranged below the chip receiving disk, and is sleeved and fixedly connected to the stirring shaft.

[0011] Furthermore, the PTFE cylindrical membrane fixing plate comprises: a cylindrical membrane fixing base fixedly connected to the stirring shaft sleeve and connecting rods arranged at both ends of the cylindrical membrane fixing base, and the chip receiving plate is fixedly connected to the cylindrical membrane fixing base through the connecting rod.

[0012] Furthermore, the stirring speed of the stirring shaft is 50-100 r / min.

[0013] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0014] The utility model discloses a perfluorosulfonic acid resin stirring and dispersing reactor. A chip receiving plate is arranged on the upper part of a stirring shaft in the perfluorosulfonic acid resin stirring and dispersing reactor to receive wear chips dropped from a stirring shaft sleeve, thereby preventing the chips from dropping into a solution in the reactor and contaminating the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of a stirring and dispersing reactor of a perfluorosulfonic acid resin provided by the utility model;

[0017] Figure 2 It is a top view of a chip receiving disc and a PTFE tube film fixing disc provided by the utility model.

[0018] The reference numerals are described as follows:

[0019] 1. stirring and dispersing reactor body; 2. stirring and dispersing assembly; 201. stirring shaft; 202. stirring blade; 203. chip collecting plate; 204. PTFE tube membrane; 205. PTFE tube membrane fixing plate; 2050. tube membrane fixing base; 2051. connecting rod; 206. sealing sleeve. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 The perfluorosulfonic acid resin stirring and dispersing reactor comprises a stirring and dispersing reactor body 1 and a stirring and dispersing component 2.

[0022] The stirring and dispersing reactor body 1 is used to contain the perfluorosulfonic acid resin membrane solution and to stir the membrane solution. The shape of the outer shell of the stirring and dispersing reactor body 1 is not limited, as long as it can accommodate the aforementioned perfluorosulfonic acid resin membrane solution. In this embodiment, the corresponding stirring and dispersing reactor body 1 has a cylindrical tank body at the bottom and a hemispherical capping at the top, and the two are integrally formed.

[0023] The stirring and dispersing assembly 2 comprises a stirring shaft 201, and a plurality of stirring blades 202 are arranged at the lower part of the stirring shaft 201 to improve the uniformity of stirring and accelerate the stirring rate. A driving device (not shown) is arranged at the top of the stirring shaft 201 to drive the stirring shaft 201 to perform stirring operation. Of course, the driving device is not limited to being arranged at the top of the stirring shaft 201, and can also be a built-in driving device. The stirring blades 201 can also be selected from one of a propeller impeller, a paddle impeller and a turbine impeller.

[0024] See also Figure 2 In the present invention, a chip tray 203 is provided on the upper part of the stirring shaft 201, and the stirring shaft 201 passes through the center of the chip tray 203 and is connected thereto. The chip tray 203 is used to receive the debris generated by the long-term stirring and wear of the sealing sleeve 206 sleeved on the stirring shaft 201, thereby preventing the debris from falling into the reactor body and contaminating the membrane solution in the reactor. In this embodiment, the opening of the chip tray 203 is flared to accommodate more debris from the sealing sleeve 206. Of course, the shape of the chip tray 203 is not limited, as long as its diameter is smaller than the inner diameter of the stirring and dispersing reactor body 1 and does not affect the stirring operation of the reactor body.

[0025] In the present invention, a layer of PTFE tube film 204 is also wrapped around the outer periphery of the corresponding stirring shaft 201, and the coverage of the tube film extends downward from the chip receiving plate 203 to the stirring blade 202, thereby wrapping the stirring shaft 201 part and the shaft parts in the stirring and dispersing reactor body 1. The benefit of setting the tube film is that the corrosive liquid in the reactor can prevent the stirring shaft itself from being corroded or damaged, thereby affecting the stirring effect.

[0026] The reason for choosing PTFE tube membrane coating is that the carbon-fluorine bond in the PTFE structure is one of the strongest single bonds. The fluorine atom is like a tight protective layer, which wraps the long carbon chain in it, making the carbon chain unable to be attacked by general active molecules. This strong bond contributes to the chemical stability and inertness of PTFE, enabling it to resist corrosion from strong acids and strong bases; and the high fluorine content of PTFE forms a high electronegative environment around the carbon backbone, which makes it difficult for nucleophiles or electrophiles to attack carbon atoms. In addition, fluorine atoms can effectively protect the carbon backbone from chemical erosion due to their large size and high electron density; in addition, PTFE is a non-polar polymer without any polar functional groups, so it can withstand polar solvents such as water and polar agents such as strong acids and strong bases.

[0027] The thickness of the PTFE tube membrane used in the embodiment of the utility model is between 100 and 200 μm, which ensures the stirring effect in the kettle body while preventing the coated PTFE tube membrane from breaking during the stirring operation. Of course, the operator can also select a suitable membrane thickness according to actual needs to adapt to the stirring needs.

[0028] At the same time, in order to prevent the cylindrical film from falling off or loosening on the stirring shaft 201, a PTFE cylindrical film fixing plate 205 is arranged below the chip receiving plate 203 in the embodiment of the utility model.

[0029] The PTFE tube membrane fixing plate 205 includes a tube membrane fixing base 2050 which is sleeved and fixedly connected to the stirring shaft 201 and connecting rods 2051 at both ends of the tube membrane fixing base 2050. The chip receiving plate 203 is fixedly connected to the tube membrane fixing base 2050 via the connecting rods 2051, thereby achieving a coordinated fixing effect of the chip receiving plate 203 and the tube membrane fixing plate 205.

[0030] In addition, in the present invention, the rotation speed of the stirring shaft 201 can be adaptively adjusted according to the actual stirring needs. In this embodiment, the stirring speed of the stirring shaft 201 is set at 50-100 r / min. The setting of the stirring speed needs to be coordinated with the thickness of the tube film. If the stirring speed is too fast, the tube film may break and fall, affecting the solution in the kettle, and easily damaging the stirring shaft 201, thereby affecting the stirring effect. If the stirring speed is too slow, it will directly affect the stirring uniformity.

[0031] In summary, in the utility model, a perfluorosulfonic acid resin stirring and dispersing reactor is provided with a chip tray 203 and a PTFE tube membrane 204 on the stirring shaft 201. By means of the strong corrosion resistance of the PTFE tube membrane 204 and the debris-carrying function of the chip tray 203, the solution in the reactor is not contaminated and the safety and durability of the stirring device are improved.

[0032] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A perfluorosulfonic acid resin stirring and dispersing reactor, characterized in that: include: A stirring and dispersing reactor body (1) and a stirring and dispersing component (2) arranged in the stirring and dispersing reactor body (1); The stirring and dispersing assembly (2) comprises a stirring shaft (201), a stirring blade (202) arranged at the lower part of the stirring shaft (201), and a chip receiving plate (203) sleeved on the upper part of the stirring shaft (201); the chip receiving plate (203) is used to receive wear debris of a sealing shaft sleeve (206) sleeved on the upper end of the stirring shaft (201).

2. A perfluorosulfonic acid resin stirring and dispersing reactor according to claim 1, characterized in that: The stirring and dispersing component (2) further comprises a PTFE tubular membrane (204) wrapped around the outside of the stirring shaft (201), wherein the PTFE tubular membrane (204) is used to protect the stirring shaft (201).

3. A perfluorosulfonic acid resin stirring and dispersing reactor according to claim 2, characterized in that: The thickness of the PTFE tube membrane (204) is 100-200 μm.

4. A perfluorosulfonic acid resin stirring and dispersing reactor according to claim 1, characterized in that: The stirring and dispersing component (2) further comprises a PTFE tube membrane fixing disk (205), wherein the PTFE tube membrane fixing disk (205) is arranged below the chip receiving disk (203), and is sleeved on and fixedly connected to the stirring shaft (201).

5. A perfluorosulfonic acid resin stirring and dispersing reactor according to claim 4, characterized in that: The PTFE tube film fixing disk (205) comprises: a tube film fixing base (2050) sleeved and fixedly connected to the stirring shaft (201) and connecting rods (2051) arranged at both ends of the tube film fixing base (2050); the chip receiving disk (203) is fixedly connected to the tube film fixing base (2050) via the connecting rods (2051).

6. A perfluorosulfonic acid resin stirring and dispersing reactor according to claim 1, characterized in that: The stirring speed of the stirring shaft (201) is 50-100 r / min.

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