CN215462226U

CN215462226U - Standing device

Info

Publication number: CN215462226U
Application number: CN202023320022.6U
Authority: CN
Inventors: 王炳霁; 殷松森; 张婧; 葛明; 唐润理; 瞿研
Original assignee: SIXTH ELEMENT (CHANGZHOU) MATERIALS TECHNOLOGY CO LTD; Nantong Sixth Element Material Technology Co ltd
Current assignee: SIXTH ELEMENT (CHANGZHOU) MATERIALS TECHNOLOGY CO LTD; Nantong Sixth Element Material Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-01-11
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a standing device 2, comprising: the tank body 21 comprises a top part 211, a side wall 212 and a bottom part 213, and the top part 211, the side wall 212 and the bottom part 213 jointly enclose the standing chamber 20; and a stirring device 26+27 fixedly connected with the tank body 21; the top 211 of the tank is provided with a feed valve 22 and a top viewing window 24, and the side wall 222 of the tank is provided with a discharge valve 23 and a side wall viewing window 25.

Description

Standing device

Technical Field

The utility model relates to a graphene preparation device.

Background

The existing graphene oxide preparation technology focuses on how to optimize the oxidation process, for example, in a graphene oxide preparation method, ferric trichloride and dry ice are introduced on the basis of a Hummers method to improve the oxidation intercalation efficiency, reduce the heat dissipation in the reaction process and improve the oxidation yield, so that graphite oxide (CN 111847439A) with higher oxidation degree, smaller particle size and lower cost is prepared; for example, in the description of a graphene oxide dispersion liquid, a preparation method and an application thereof, a graphene oxide dispersion liquid, a preparation method thereof and an application of the graphene oxide dispersion liquid in the preparation of modified cement mortar are mainly introduced, and a preparation method of graphite oxide is not yet available (CN 111392721A); for example, in a preparation method of graphene oxide dispersion, ultrasound is mainly introduced into a graphite and sulfuric acid mixing section to increase the intercalation effect of sulfuric acid on graphite, and then a Hummers method is continuously adopted to prepare graphite oxide (CN 103787317B); for example, in "method and apparatus for preparing graphene oxide", a premixer, a microchannel reactor, a collection tank, and a cross-flow filtration device are mainly connected in sequence, and the heat problem of graphite oxide in the preparation process is improved by optimizing the heat transfer in the graphite oxide/graphene reaction process (CN 107879337A);

the existing patents aim at proposing the feasibility of preparation, but do not research the preparation efficiency, and do not propose the solution of the problems of long preparation time, low purification efficiency and high content of metal elements in the product in the actual production process. In the conventional preparation, the reacted graphene oxide or graphite oxide containing metal impurities directly enters a washing purification section, a large amount of washing liquid and a long purification time are needed to remove the metal impurities in the product, a large amount of washing liquid needs to be treated, and the treatment of wastewater and waste liquid needs high cost and a long purification time.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to overcoming one or more of the above problems, and provides a static device for preliminary impurity removal of reaction products after reaction of graphene oxide or graphite oxide and before further purification.

In order to achieve the above purpose, the utility model provides the following technical scheme:

a static apparatus comprising:

the tank body comprises a top part, a side wall and a bottom part, and the top part, the side wall and the bottom part enclose a standing chamber; and

the stirring device is fixedly connected with the tank body;

the top of the tank body is provided with a feed valve and a top observation window, and the side wall of the tank body is provided with a discharge valve and a side wall observation window.

According to one aspect of the utility model, the inner surface of the bottom of the tank body is in a smooth concave structure.

According to one aspect of the utility model, the paddle comprises an upper end located above the top of the tank and a lower end located within the resting chamber; and a driving device arranged at the upper end part of the stirring paddle; the surface of the lower end part of the stirring paddle is a downward smooth arc surface and is arranged corresponding to the inner surface of the bottom of the tank body.

According to one aspect of the utility model, the width of the paddles extends to near the side wall of the tank.

According to one aspect of the utility model, more than two sidewall observation windows are provided on the sidewall at different horizontal positions.

According to one aspect of the utility model, the discharge valve is positioned at a sidewall height of 1/2-3/5.

According to one aspect of the utility model, at 2/3 the sidewall height.

The standing device can separate and discharge sulfuric acid solution and most of salt in a reaction product in advance, so that the overall density of materials is reduced, the amount of materials to be treated by the rear-end purifier is reduced, and the treatment efficiency of the rear-end purifier is improved; further promote the treatment effeciency of rear end clarifier, improve the purity of material simultaneously. The production efficiency of the graphite oxide can be improved, the production cost of the graphite oxide is reduced, and the market competitiveness of the graphite oxide is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the structure of the static device of the present invention;

fig. 2 is a schematic top view of the present invention.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples, but the present invention is not limited to the following examples. The method is a conventional method unless otherwise specified. The starting materials are commercially available from the open literature unless otherwise specified.

Referring to fig. 1 and 2, the still 2 includes:

the tank body 21 comprises a top part 211, a side wall 212 and a bottom part 213, and the top part 211, the side wall 212 and the bottom part 213 jointly enclose the standing chamber 20; and

the stirring device is fixedly connected with the tank body 21;

the top 211 of the tank is provided with a feed valve 22 and a top viewing window 24, and the side wall 222 of the tank is provided with a discharge valve 23 and a side wall viewing window 25.

The inner surface of the bottom 213 of the tank is smoothly recessed. The stirring device comprises: the stirring paddle 26 is positioned at the upper end part above the top of the tank body and at the lower end part in the standing chamber; and a driving device 27 arranged at the upper end of the stirring paddle; wherein, the surface of the lower end part of the stirring paddle 26 is a downward smooth arc surface and is arranged corresponding to the smooth concave structure of the inner surface of the bottom 213 of the tank body. The width of the stirring paddle extends to be close to the side wall of the tank body. Preferably, two or more side wall observation windows 25 are provided in the side walls having different horizontal positions. The discharge valve 23 is arranged at the height 1/2-3/5 of the side wall; preferably at 2/3 where the height of the side walls is. When the stirring device is used, the driving device 27 of the stirring device is started, the stirring paddle 26 starts to stir, and the stirring is slowly performed. The reaction product material obtained in step S1 and water were both fed into the standing chamber 20 through the feed valve 22, and the material system was charged to 80% by volume of the standing chamber 20. And observing the turbidity of the material system in the standing chamber 20 through a top observation window to judge whether the stirring is uniform or not. After stirring evenly, adding a small amount of flocculant from the feed valve 22, continuing stirring for 15-30min, and then standing. The material system is observed through a side wall observation window 25 to determine whether a clean layered interface is formed. When a clear layered interface is present, the discharge valve 23 is opened to discharge the upper solution from the still 2, and then the material remaining in the still 20 is sent to the first purifier 11 through the discharge valve 23 and the relay 20. The position where the discharge valve 23 is provided is critical to the still. The position of the discharge valve 23 is critical to the still vessel 2 and is closely integrated with the process. The discharge valve 23 is arranged in the standing chamber 20, and is arranged on the upper part of the horizontal line of the layered interface of the material system, and is closely close to the horizontal line of the layered interface. The lower the discharge valve 23, the less burden is placed on the subsequent purification process. If the discharge valve 23 is too low, a large amount of water needs to be added, and if the acid discharge amount is too large, a large burden is imposed on the acid treatment. If the discharge valve is too high, a large amount of salt is discharged after being dissolved by the upper solution, and even a delamination interface is unclear. The utility model discloses a discovery in the preparation technology of oxidation graphite alkene or oxidation graphite, after combining reation kettle 1's material analysis, discover that when setting up bleeder valve 23 in lateral wall height 1/2 ~ 3/5, can appear clean layered interface, most salt can be dissolved and discharge, and spent acid volume also can not too much simultaneously, and the after-treatment process is not worth a long time. Best results are obtained when the height of the side wall is 2/3.

The contents of K and Mn ions (see Table 1 below) were monitored by selecting a filtrate from one of the stages for the material passed through the still, and it can be seen from the data in Table 1 that the Mn content in the filtrate was reduced by one time and the K content was reduced by about 100mg/L when the material passed through the purification tank was further post-treated the same number of times.

Table 1:

finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A static apparatus, comprising:

the stirring device is fixedly connected with the tank body;

2. The holder according to claim 1, wherein the inner surface of the bottom of the tank is rounded and recessed.

3. The static apparatus according to claim 2, characterized in that said stirring means comprise: the stirring paddle comprises an upper end part positioned above the top of the tank body and a lower end part positioned in the standing chamber; and a driving device arranged at the upper end part of the stirring paddle; the surface of the lower end part of the stirring paddle is a downward smooth arc surface and is arranged corresponding to the inner surface of the bottom of the tank body.

4. A holder according to claim 3 wherein the width of the paddle extends to close proximity to the side wall of the tank.

5. The holder according to claim 1, wherein two or more side wall observation windows are provided in the side walls having different horizontal positions.

6. A static device according to claim 1, wherein said discharge valve is located at 1/2-3/5 of the height of the side wall.

7. A holder according to claim 6 wherein said discharge valve is located at 2/3 of the height of the side wall.