CN218931726U

CN218931726U - Activated carbon microwave modification device

Info

Publication number: CN218931726U
Application number: CN202223320427.9U
Authority: CN
Inventors: 周存辉; 张轩; 杨海龙
Original assignee: Shaanxi Yanchang Petroleum Group Co Ltd
Current assignee: Shaanxi Yanchang Petroleum Group Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-04-28
Anticipated expiration: 2032-12-09

Abstract

The utility model provides an activated carbon microwave modification device which comprises a microwave generator and a reaction sleeve, wherein the reaction sleeve is arranged in the microwave generator, an air inlet branch pipe and an air outlet branch pipe are arranged on the reaction sleeve, activated carbon is placed in the reaction sleeve, and the air inlet branch pipe is communicated with an air vent pipeline. The device provides the required atmosphere through the air inlet branch pipe and the air outlet branch pipe to modify the activated carbon, thereby avoiding uncontrollable change of the surface property of the activated carbon caused by air contact in the modification process. According to the utility model, the two porous sieve plates are arranged at the lower part of the inner pipe, the activated carbon modified sample is placed between the two sieve plates, gas enters the pipe from the lower sieve plate and flows through the sample and the upper sieve plate, the activated carbon sample is suspended between the two sieve plates by adjusting the gas speed, and the suspended sample can be uniformly radiated by microwaves.

Description

Activated carbon microwave modification device

Technical Field

The utility model belongs to the technical field of activated carbon preparation and modification, and particularly relates to an activated carbon microwave modification device.

Background

The active carbon is used as a porous carbon-containing material, and the application of the active carbon as a catalytic material or a catalyst carrier is continuously expanded because the diversity of the surface chemical properties of the active carbon endows the active carbon with different catalytic properties. In recent years, the research on the chemical properties of the surface of the activated carbon and the research on the modification method become a hot spot for the research on the activated carbon material, and the functions and the applications of the activated carbon material are gradually expanded on the basis of the research on the properties, the causes and the modification method of the surface functional groups of the activated carbon. Heat treatment of activated carbon is generally an effective way to alter the surface chemistry of activated carbon to remove or impart different functional groups to the surface of the activated carbon. Microwave heating is a heating method from inside to outside by deep people to the inside of materials. The microwave heating has the main advantages of short heating time, no extra energy consumption, capability of greatly utilizing heating energy, reduction of operation cost and easy control of product quality.

Many researches have been made by domestic researchers on the aspect of microwave modification of activated carbon, and patent CN111799104A and patent CN109437197A both treat the activated carbon by utilizing a microwave modification method and further utilize the modified activated carbon to prepare specific carbon materials, but the method process does not involve the introduction of a microwave modification device. Patent CN103413690 a describes a method for preparing activated carbon for super capacitor by utilizing microwave modification, the microwave generating device of the method is a conventional microwave oven, no nitrogen protection measure is provided, and the surface property of the activated carbon is uncontrollably changed due to contact with air in the microwave heating process. The microwave generating devices of the patent CN113877554A, the patent CN214635210U, the patent CN208454500U and the patent CN204588750U are all used for regenerating the activated carbon and cannot be directly used for modifying the activated carbon by microwaves.

Disclosure of Invention

The utility model aims to provide an active carbon microwave modification device which solves the technical problems existing in the prior art.

Therefore, the technical scheme provided by the utility model is as follows:

the utility model provides an active carbon microwave modification device, includes microwave generator and reaction sleeve, the reaction sleeve is located in the microwave generator, last inlet manifold and the exhaust branch of having seted up of reaction sleeve, place active carbon in the reaction sleeve, the inlet manifold intercommunication has the vent line.

The top of the microwave generator is provided with a through hole, the upper part of the reaction sleeve penetrates through the through hole and then is suspended in the microwave generator through a supporting body, the reaction sleeve comprises an inner pipe and an outer pipe, and the inner pipe is arranged in the outer pipe;

the air inlet branch pipe is arranged on one side of the upper portion of the outer pipe, the bottom end of the outer pipe is closed, the top end of the outer pipe is open, the bottom end of the inner pipe is open, the air outlet branch pipe is arranged on the top end of the inner pipe, the upper portion of the inner pipe is connected with the upper portion of the outer pipe in a sealing mode, an upper sieve plate and a lower sieve plate are arranged in the inner pipe, and activated carbon is arranged between the upper sieve plate and the lower sieve plate.

The upper part of the reaction sleeve is exposed, a microwave sealing device is sleeved outside the exposed part, and the air inlet branch pipe and the air outlet branch pipe penetrate through the microwave sealing device.

The inside of the ventilation pipeline is nitrogen or water vapor.

The inner tube and the outer tube are quartz glass tubes.

The microwave sealing device consists of two semicircular metal blocks, the middle parts of the two semicircular metal blocks are provided with grooves, and the grooves are matched with the shape of the reaction sleeve.

The inner tube bottom is thick, the middle is thin, the upper portion is thick, outer tube upper portion is for having a stopper structure, inner tube upper portion outer wall is the frosting.

The beneficial effects of the utility model are as follows:

according to the active carbon microwave modification device provided by the utility model, the active carbon is modified by providing the needed atmosphere through the air inlet branch pipe and the air outlet branch pipe, so that uncontrollable change of the surface property of the active carbon caused by contact with air in the modification process is avoided.

According to the modification device, two porous sieve plates are arranged at the lower part of the inner tube, an activated carbon modification sample is placed between the two sieve plates, gas enters the tube from the lower sieve plate, flows through the sample and the upper sieve plate, the activated carbon sample is suspended between the two sieve plates by adjusting the gas speed, and the suspended sample can be uniformly radiated by microwaves.

The utility model adopts the inner pipe and the outer pipe to form the reaction sleeve, the air inlet branch pipe and the air outlet branch pipe are arranged at the same end, and only one hole is needed to be opened on the microwave generator, and the microwave generator is sealed by the microwave sealing device, so that the leakage of microwaves is prevented to the greatest extent.

Drawings

FIG. 1 is a schematic diagram of one embodiment of the present utility model;

fig. 2 is a top view of one embodiment of the present utility model.

In the figure: 1. an exhaust branch pipe; 2. a support body; 3. a microwave sealing device; 4. an air inlet branch pipe; 5. a microwave generator; 6. an inner tube; 7. an outer tube; 8. a screen plate is arranged; 9. activated carbon; 10. and a lower sieve plate.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples.

The exemplary embodiments of the present utility model will now be described with reference to the accompanying drawings, however, the present utility model may be embodied in many different forms and is not limited to the examples described herein, which are provided to fully and completely disclose the present utility model and fully convey the scope of the utility model to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the utility model. In the drawings, like elements/components are referred to by like reference numerals.

Unless otherwise indicated, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, it will be understood that terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

Example 1

The embodiment provides an activated carbon microwave modification device, which comprises a microwave generator 5 and a reaction sleeve, wherein the reaction sleeve is arranged in the microwave generator 5, an air inlet branch pipe 4 and an air outlet branch pipe 1 are arranged on the reaction sleeve, activated carbon 9 is placed in the reaction sleeve, and the air inlet branch pipe 4 is communicated with an air vent pipeline.

The device uses the principle that:

placing the activated carbon 9 sample in a reaction sleeve, opening an air-opening pipeline, allowing air to enter the reaction sleeve through an air inlet branch pipe 4, discharging the air through an air outlet branch pipe 1 to provide stable atmosphere, enabling the activated carbon 9 sample to be in a suspension state through air-opening speed adjustment, and then opening a microwave generator 5 to enable microwaves to uniformly radiate the activated carbon 9, so that energy required by modification reaction is provided, and the activated carbon 9 and a modifier react to achieve the purpose of reaming. After the modification is completed, if the modified catalyst is used for gas phase adsorption, gas desorption is needed, if used for liquid phase adsorption (such as water treatment), no gas desorption is required. The microwave generator 5 belongs to the existing products and has the functions of time control and power control.

According to the utility model, the stable required atmosphere can be provided for the reaction sleeve through the air inlet branch pipe 4 and the air outlet branch pipe 1, so that uncontrollable change of the surface property of the activated carbon 9 caused by contact with air in the modification process is avoided; on the other hand, the sample of the activated carbon 9 is in a suspension state by adjusting the air speed, so that microwaves uniformly radiate the activated carbon 9.

Example two

On the basis of the first embodiment, the embodiment provides an activated carbon microwave modifying device, a through hole is formed in the top of a microwave generator 5, the upper part of a reaction sleeve penetrates through the through hole and then is suspended in the microwave generator 5 through a support body 2, the reaction sleeve comprises an inner pipe 6 and an outer pipe 7, and the inner pipe 6 is arranged in the outer pipe 7;

the air inlet branch pipe 4 is arranged on one side of the upper portion of the outer pipe 7, the bottom end of the outer pipe 7 is closed, the top end of the outer pipe 7 is open, the bottom end of the inner pipe 6 is open, the air outlet branch pipe 1 is arranged on the top end of the inner pipe 6, the upper portion of the inner pipe 6 is in sealing connection with the upper portion of the outer pipe 7, an upper sieve plate 8 and a lower sieve plate 10 are arranged in the inner pipe 6, and activated carbon 9 is arranged between the upper sieve plate 8 and the lower sieve plate 10.

As shown in fig. 1, the reaction sleeve is put into the cavity of the microwave generator 5 from the through hole at the top end of the microwave generator 5, only the upper part is exposed, and the support body 2 at the through hole supports the reaction sleeve. The bottom of the outer tube 7 is in a closed state, the upper part of the outer tube is open and is provided with an air inlet branch tube 4, the bottom of the inner tube 6 is open, the top of the inner tube is in a closed state and is provided with an air outlet branch tube 1, the upper part of the inner tube 6 is in sealing connection with the upper part of the outer tube 7, the whole reaction sleeve is only communicated with the air inlet branch tube 4 and the air outlet branch tube 1, and the whole reaction sleeve is used as an inlet and outlet of gas used in the modification process and is in a closed state in other places. The upper screen deck 8 and the lower screen deck 10 are both detachable.

The using method comprises the following steps:

the inner tube 6 is taken out, the lower part is upward (the end with the sieve plate) and the lower sieve plate 10 is removed, the activated carbon 9 to be modified is put into the quartz glass inner tube 6, then the lower sieve plate 10 is assembled, and the end with the sieve plate is downward and is assembled into the outer tube 7. The air source is opened, air enters the outer tube 7 from the air inlet branch tube 4, flows through the lower sieve plate 10, the activated carbon 9 sample and the upper sieve plate 8 from the bottom of the outer tube 7 in sequence, flows out from the exhaust branch tube 1 after reaching the upper part of the inner tube 6, and enables the activated carbon 9 sample to be suspended between the upper sieve plate 8 and the lower sieve plate 10 by adjusting the air speed, and finally, the power supply of the microwave generator 5 is opened, the microwave power and the time are adjusted, and the microwave modification experiment of the activated carbon 9 is carried out.

Example III

On the basis of the first embodiment, the embodiment provides an activated carbon microwave modification device, the upper part of the reaction sleeve is exposed, a microwave sealing device 3 is sleeved outside the exposed part, and the air inlet branch pipe 4 and the air outlet branch pipe 1 penetrate through the microwave sealing device 3.

In this embodiment, the microwave sealing device 3 is sleeved on the exposed part of the reaction sleeve, so that microwave leakage can be prevented.

Example IV

On the basis of the second embodiment, the embodiment provides an activated carbon microwave modification device, wherein nitrogen or water vapor is arranged in the ventilation pipeline.

When the gas is nitrogen, the air is isolated, and the modifier and the activated carbon 9 are modified under the microwave radiation; when the gas is steam, the steam is used as a modifier, and carbon atoms in the activated carbon 9 react with the steam under the radiation of microwaves, so that the aim of expanding holes is fulfilled.

Example five

On the basis of the second embodiment, the present embodiment provides an activated carbon microwave modification device, wherein the inner tube 6 and the outer tube 7 are quartz glass tubes.

The quartz glass tube is transparent and visible, and other nonmetallic materials such as ceramics and plastics can also be used.

Example six

On the basis of the third embodiment, the embodiment provides an active carbon microwave modification device, the microwave sealing device 3 is composed of two semicircular metal blocks, grooves are formed in the middle of the two semicircular metal blocks, and the grooves are matched with the shape of the reaction sleeve.

As shown in fig. 2, the reaction sleeve is located between two semicircular metal blocks. The microwave sealing device 3 is convenient to detach and buckle, and the reaction sleeve is convenient to take out while preventing microwave leakage.

Example seven

On the basis of the fifth embodiment, the present embodiment provides an activated carbon microwave modification apparatus, wherein the bottom of the inner tube 6 is thick, the middle is thin, and the upper portion is thick, the upper portion of the outer tube 7 has a plug structure, and the outer wall of the upper portion of the inner tube 6 is a frosted surface.

The outer wall of the upper part of the inner tube 6 is a frosted surface, which can play the role of a plug, and is matched with the plug structure of the outer tube 7 to realize sealing. In this embodiment, as shown in fig. 1, the inner tube 6 has a thick bottom, a thin middle and a thick upper portion, the upper inner wall of the outer tube 7 is attached to the upper outer wall of the inner tube 6, the top is a thin tube, the end of the thin tube is closed, and the exhaust branch tube 1 is communicated with one side of the thin tube to exhaust gas.

Claims

1. The active carbon microwave modifying device is characterized by comprising a microwave generator and a reaction sleeve, wherein the reaction sleeve is arranged in the microwave generator, an air inlet branch pipe and an air outlet branch pipe are arranged on the reaction sleeve, active carbon is placed in the reaction sleeve, and the air inlet branch pipe is communicated with an air vent pipeline.

2. The device for modifying the activated carbon by microwaves according to claim 1, wherein the top of the microwave generator is provided with a through hole, the upper part of the reaction sleeve is hung in the microwave generator through a supporting body after passing through the through hole, the reaction sleeve comprises an inner pipe and an outer pipe, and the inner pipe is arranged in the outer pipe;

3. The device for modifying activated carbon by microwaves according to claim 1, characterized in that the upper part of the reaction sleeve is exposed, a microwave sealing device is sleeved outside the exposed part, and the air inlet branch pipe and the air outlet branch pipe penetrate through the microwave sealing device.

4. The device for modifying activated carbon by microwaves according to claim 2, characterized in that nitrogen or water vapor is arranged in the ventilation pipeline.

5. The microwave modification device for activated carbon of claim 2, wherein the inner tube and the outer tube are quartz glass tubes.

6. The device for modifying activated carbon by microwaves according to claim 3, characterized in that the microwave sealing device consists of two semicircular metal blocks, the middle parts of the two semicircular metal blocks are provided with grooves, and the grooves are matched with the shape of the reaction sleeve.

7. The microwave modification device for activated carbon of claim 5, wherein the inner tube has a thick bottom, a thin middle and a thick upper portion, the outer tube has a plug structure at the upper portion, and the outer wall of the inner tube has a frosted surface at the upper portion.