CN215004836U - Cement fluidity measuring device - Google Patents
Cement fluidity measuring device Download PDFInfo
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- CN215004836U CN215004836U CN202120566948.9U CN202120566948U CN215004836U CN 215004836 U CN215004836 U CN 215004836U CN 202120566948 U CN202120566948 U CN 202120566948U CN 215004836 U CN215004836 U CN 215004836U
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Abstract
The utility model belongs to the technical field of radioactive waste treatment, in particular to a cement fluidity measuring device, which comprises a stainless steel frame (1) and a measuring mechanism (2), wherein the stainless steel frame (1) is provided with a main body groove (4), a glass plate (3) is detachably placed in the main body groove (4), the stainless steel frame (1) is provided with a side groove (5), and the measuring mechanism (2) is connected with the stainless steel frame (1) through the side groove (5) and can freely move along the main body groove (4); the measuring mechanism (2) comprises a movable positioning block (6), a measuring scale (7) and a measuring block (8), wherein the movable positioning block (6) and the measuring block (8) are sleeved on the measuring scale (7) and can freely move along the measuring scale (7). The utility model discloses can effectively improve the work efficiency that radioactive waste cement solidification body performance detected, improve the standardization level of this work, will play the important role to the standardization and the operation safety of cement solidification body performance detection work.
Description
Technical Field
The utility model belongs to the technical field of radioactive waste treatment, specifically be a fixed cement fluidity measuring device of radioactive waste cement.
Background
At present, the cement solidification/fixation is carried out on the radioactive wastes of low and medium level in China. The waste generated by cement solidification needs to be tested for performance. According to the specification of cement solidification body (GB 14569.1) which is the performance requirement of the low and middle horizontal radioactive waste solidification body, and referring to the method for measuring fluidity of cement mortar (GB/T2419-. Wherein the fluidity measurement can only be performed on site, since it is required to measure before the cement sets. As the working conditions of radioactive waste treatment plants such as nuclear power stations and the like are limited and cannot be measured by large-scale professional measurement work, at present, when the cement fluidity measurement is carried out on site in the nuclear power stations at home, cement paste is mostly loaded into a standard test mould and then directly placed on coordinate paper or placed on glass for measurement by a tape measure.
Although the method is simple, the method has some defects, which are mainly shown in the following steps:
1. the accuracy of the measurement. Whether the number of coordinate grids is counted on coordinate paper or the measuring is carried out on glass by using a measuring tape, inevitable subjective errors exist, and adverse effects are generated on measuring results;
2. secondary waste problems. After measurement, the coordinate paper and the glass are generally used as wastes and are reserved for a nuclear power station, but in the measurement process, due to the problem of the material of the coordinate paper, the coordinate paper and the glass usually need to be packaged with the aid of plastic cloth, adhesive tapes and other materials, and the amount of secondary wastes is greatly increased. The cement on the glass is not easy to remove after solidification, and the cost, pollution and secondary waste amount of the removal method are high; if the glass is directly used as waste, the volume is large, and the damaged glass is easy to cause harm to personnel.
Therefore, it is necessary to develop a cement fluidity measuring device to protect the safety of operators, ensure the quality of the performance detection work of the cement solidification body and further standardize the performance detection work of the radioactive waste cement solidification body in China.
Disclosure of Invention
The utility model aims to provide a cement fluidity measuring device to the defect of current radioactive waste cement solidification body performance testing work, effectively improve the work efficiency that radioactive waste cement solidification body performance detected, improve the standardization level of this work, further standardize the radioactive waste cement solidification body performance testing work of china.
The technical scheme of the utility model as follows: a cement fluidity measuring device comprises a stainless steel frame and a measuring mechanism, wherein the stainless steel frame is provided with a main body groove, a glass plate is detachably placed in the main body groove, the stainless steel frame is provided with a side groove, and the measuring mechanism is connected with the stainless steel frame through the side groove and can freely move along the main body groove;
the measuring mechanism comprises a movable positioning block, a measuring scale and a measuring block, wherein the movable positioning block and the measuring block are sleeved on the measuring scale and can move freely along the measuring scale.
Further, according to the cement fluidity measuring device, the number of the movable positioning blocks is 2.
Further, a cement fluidity measuring device as described above, the size of the body groove is determined based on the thickness of the ordinary glass and the cement fluidity measuring requirements.
Further, a cement fluidity measuring device as described above, the size of the glass plate matches the size of the main body groove.
Further, a cement fluidity measuring device as described above, the measuring scale is provided with scales, and the measuring range and the accuracy of the measuring scale are determined based on the measuring requirement of the cement fluidity.
Further, according to the cement fluidity measuring device, the stainless steel frame and the measuring mechanism are made of stainless steel.
Further, according to the cement fluidity measuring device, two lines which are perpendicular to the edges of the glass plate and perpendicular to each other are scribed on the glass plate, and the intersection point of the two lines is a determination starting point of cement paste.
The utility model has the advantages as follows:
(1) the device can effectively avoid various adverse factors existing in the existing operation, is beneficial to the standardization and the standardization of related operations in the field of radioactive waste characterization in China, and is beneficial to the protection of operators.
(2) The main equipment of the device is made of stainless steel, so that the long-term stability of the device can be ensured, and the decontamination treatment is convenient.
Drawings
FIG. 1 is a schematic structural diagram of a front view of an embodiment of a cement fluidity measuring device according to the present invention;
fig. 2 is a top view of the embodiment of fig. 1.
Wherein, 1-stainless steel frame; 2-a measuring mechanism; 3-a glass plate; 4-a body groove; 5-side groove; 6, a movable positioning block; 7-measuring the scale; 8-measuring block.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of a front view of an embodiment of a cement fluidity measuring device of the present invention, fig. 2 shows a top view of the embodiment of fig. 1, and as can be seen from the figure, the measuring device comprises a set of stainless steel frame (1), a set of measuring mechanism (2) and a replaceable glass plate (3), a main body groove (4) is formed on the upper surface of the stainless steel frame (1), a side groove (5) is formed on the side surface of the stainless steel frame (1), the glass plate (3) is placed in the main body groove (4) of the stainless steel frame (1), and can be conveniently inserted into and taken out of the main body groove (4); the measuring mechanism (2) is movably connected with the stainless steel frame (1) and can move along the main body groove (4).
The measuring mechanism (2) comprises two movable positioning blocks (6), a measuring scale (7) and a measuring block (8), wherein the movable positioning blocks (6) and the measuring block (8) are sleeved on the measuring scale (7) and can freely move along the measuring scale (7).
The size of the main body groove (4) of the stainless steel frame (1) is not less than 500mm multiplied by 4.5mm (length multiplied by width multiplied by height) so as to meet the measurement requirements of the thickness of common glass and the fluidity of cement.
The measuring scale (7) is provided with scales, the measuring range is not less than 750mm, and the division value is not more than 0.5 mm; the measuring scale (7) can be fixed with the movable positioning block (6) on one side, and the movable positioning block (6) is not inserted into the other side, so that the sizes of cement paste at different angles can be measured; the measuring block (8) can move freely along the measuring scale (7) to position cement paste with different shapes.
The size of the glass plate (3) is not less than 500mm multiplied by 500mm, and the glass plate is well matched with the frame main body groove (4). The periphery of the glass plate (3) is polished to avoid injury to personnel. Two lines which are vertical to the edges of the glass plate (3) and are mutually vertical are marked on the glass plate (3), and the intersection point of the two lines is the measurement starting point of the cement paste.
The glass plate (3) is disposed of as waste after use, and the scribed glass plate (3) can be quickly divided into four parts manually.
The utility model discloses wholly choose stainless steel for use, all parts should cooperate well, and welding seam and surface are properly handled.
The following introduces the specific working process of the utility model.
Before the cement fluidity measuring device is used, the installation and connection of each part are checked. Before measurement, firstly, a flat ground or a workbench is selected to be placed according to the actual situation of an implementation place; then, inserting the glass plate into a main body groove of the measuring device, and then placing a cement test mold (standard piece) at the central position on the glass plate; manually pouring the cement paste into the test mold, then lifting the test mold according to requirements, and starting to measure after the free flow of the cement paste on the glass plate is stopped.
During measurement, firstly moving the measuring scale to the direction with the largest diameter of cement paste, separating the measuring scale from the movable positioning block on one side as required, then moving the measuring block to enable the inner sides of the measuring block and the movable positioning block on the other side to be in contact with the cement paste, and then reading; finally, the measuring scale is moved to the direction perpendicular to the measuring direction, and the process is repeated.
After the measurement is finished, the measuring mechanism is restored to the original position, the glass plate is manually taken out, the glass plate is evenly and forcefully divided into four pieces along the scribing line at the bottom of the glass plate, and the four pieces of glass plate are packaged to be used as waste for treatment.
A cement mobility measuring device can effectively avoid the operational error that current operation exists and because of the technique with equip the data that can't standardize and cause do not have representative scheduling problem, can effectively improve the work efficiency that radioactive waste cement solidification body performance detected, improve the sample representativeness, improve work effect, be favorable to the standardization and the standardization of the relevant operation in the radioactive waste characterization field of china.
The above-described embodiments are merely illustrative of the present invention, which may be embodied in other specific forms or in other specific forms without departing from the spirit or essential characteristics thereof. The described embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention should be determined by the appended claims, and any changes that are equivalent to the intent and scope of the claims are intended to be embraced therein.
Claims (7)
1. A cement fluidity measuring device is characterized in that: the glass plate measuring device comprises a stainless steel frame (1) and a measuring mechanism (2), wherein a main body groove (4) is formed in the stainless steel frame (1), a glass plate (3) is detachably placed in the main body groove (4), a side groove (5) is formed in the stainless steel frame (1), and the measuring mechanism (2) is connected with the stainless steel frame (1) through the side groove (5) and can freely move along the main body groove (4);
measuring mechanism (2) are including portable locating piece (6), dipperstick (7) and measuring block (8), portable locating piece (6) with measuring block (8) cover is established on dipperstick (7), can follow dipperstick (7) freely remove.
2. A cement fluidity measuring device according to claim 1, wherein: the number of the movable positioning blocks (6) is two.
3. A cement fluidity measuring device according to claim 2, wherein: the dimensions of the body groove (4) are determined based on the thickness of ordinary glass and cement fluidity measurement requirements.
4. A cement fluidity measuring device according to claim 3, wherein: the size of the glass plate (3) is matched with that of the main body groove (4).
5. A cement fluidity measuring device according to claim 4, wherein: the measuring scale (7) is provided with scales, and the measuring range and the precision of the measuring scale (7) are determined based on the measuring requirement of the cement fluidity.
6. A cement fluidity measuring device according to claim 5, wherein: the stainless steel frame (1) and the measuring mechanism (2) are made of stainless steel.
7. A cement fluidity measuring device according to claim 6, wherein: two lines which are perpendicular to the edges of the glass plate (3) and are mutually perpendicular are scribed on the glass plate (3), and the intersection point of the two lines is the measurement starting point of the cement paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120566948.9U CN215004836U (en) | 2021-03-19 | 2021-03-19 | Cement fluidity measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120566948.9U CN215004836U (en) | 2021-03-19 | 2021-03-19 | Cement fluidity measuring device |
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| CN215004836U true CN215004836U (en) | 2021-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235949A (en) * | 2022-07-15 | 2022-10-25 | 福州大学 | Portable cement mortar fluidity measuring ruler and measuring method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235949A (en) * | 2022-07-15 | 2022-10-25 | 福州大学 | Portable cement mortar fluidity measuring ruler and measuring method thereof |
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