Preparation apparatus of activated carbon standard material

Abstract

The invention discloses a preparation apparatus of activated carbon standard material, comprising loading tube (3). The front end of the loading tube is movably mounted at the front of support (20); hollow support tube I (29) is fixedly connected to the rear end of the loading tube and is connected with hollow support tube II (30) via rotary connector (9); the hollow support tube II is mounted atthe rear of the support, and preheating unit (10) and thermocouple IV (11) are arranged at the periphery of the hollow support tube II; the outer periphery of the loading tube is provided with refractory layer (7); the inner wall of the refractory layer is in clearance fit with the outer side of the loading tube; the inner wall of the refractory layer is provided with heating unit I and thermocouple I (4), heating unit II and thermocouple II (5) and heating unit III and thermocouple III (6), which are used for heating the loading tube, sequentially along the axis of the loading tube. The radial and vertical distribution of activated carbon material is added herein, uniform, stable and full heating is achieved, full reaction is carried out in dynamic state, the preparation cycle is shortened, and uniformity of the activated carbon standard material is guaranteed.

Description

technical field [0001] The invention relates to the field of activated carbon preparation, in particular to an activated carbon standard material preparation device. Background technique [0002] The carbonization process is to investigate the influence of carbonization parameters on the pore structure of activated carbon through the influence of carbonization final temperature, heating rate, and carbonization constant temperature time on the performance of activated carbon standard substances; The fine carbon fragments react with a part of the carbon skeleton, which makes the pore structure of the carbonized material in the carbon more developed, and the adsorption surface area of ​​the activated carbon increases, and the adsorption capacity also increases. The activation reaction has three functions of opening, expanding and forming new pores during the formation of activated carbon pores, that is, the opening of the original blocked pores, the expansion of the original po...

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Problems solved by technology

[0003] In the existing preparation device, the activator uses the number of water droplets to control the amount of activator added; the rotation and temperature control accuracy is not high, resulting in uneven heating of the material during the reaction process, which is prone to defects such as undercooking and overburning; the whole device has only one Temperature measurement point; there is no alarm reminder for high temperature; it cannot meet the uniformity and reproducibility control requirements for the preparation of activated carbon reference materials; and the operator cannot leave the operator after the device is started, which increases the labor intensity

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