A method of degassing for the preparation of buffer material blocks

A technology of buffer material and exhaust method, which is applied in manufacturing tools, ceramic molding machines, etc., can solve the problems of high pressure, affecting the development of buffer materials, and difficult to discharge powder gas.
CN109719837BActive Publication Date: 2021-05-18BEIJING RES INST OF URANIUM GEOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING RES INST OF URANIUM GEOLOGY
Publication Date
2021-05-18

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Abstract

The invention belongs to the technical field of buffer material block preparation, and in particular relates to an exhaust method for buffer material block preparation that ensures the pressing quality of the block; the exhaust device for buffer material block preparation includes an air vent (1), a punch (2), die (3), bentonite powder (4), press bearing plate (5); screw rod (6), filter rod (7) and sealing ring (8), wherein, described method comprises the following steps Step 1, exhaust hole layout; Step 2, exhaust device processing; Step 3, exhaust hole installation; Step 4, exhaust and maintenance; the beneficial effects of the present invention are: (1) a buffer provided by the present invention The exhaust method for the preparation of material blocks can effectively block the discharge of bentonite powder while realizing the exhaust function, and improve the pressing quality and efficiency; (2) the exhaust method for the preparation of a buffer material block provided by the invention, which The material of the exhaust device is the same as that of the pressing mold, which can effectively prevent the potential corrosion of the metal and increase the service life.
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Description

technical field

[0001] The invention belongs to the technical field of buffer material block preparation, and in particular relates to an exhaust method for buffer material block preparation. Background technique

[0002] In the study of geological disposal of high-level radioactive waste, the buffer material is an important part of the multiple barrier system in the repository, and it is usually wrapped around the waste tank in the form of block stacking. As the last artificial barrier between the waste tank and the geological body, it plays an important role in engineering barrier, hydraulic barrier, chemical barrier, conduction and dissipation of radioactive decay heat. Therefore, in the process of long-term performance research of indoor model test and field test of cushioning materials, it is necessary to prepare large compacted blocks of cushioning materials.

[0003] According to the existing test equipment and technical level, the buffer material block is usually pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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