Apparatus for forming foamed grout
A technology of cement slurry and foam, applied in cement mixing devices, clay preparation devices, chemical instruments and methods, etc., can solve the problems of poor thermal insulation, poor thermal insulation effect, and poor quality of solid structure, and achieve good thermal insulation effect and texture Uniform and delicate, good quality effect
Active Publication Date: 2021-03-23
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
Foam cement slurry with poor uniformity and fineness will make the quality of solid structure obtained by solidification poor, especially its thermal insulation and heat insulation effect will be relatively poor
Method used
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Embodiment Construction
[0025] The present invention will be further described below in conjunction with accompanying drawing.
[0026] figure 1 The structure of an apparatus for forming foamed grout (hereinafter simply referred to as “apparatus”) 1 according to the present invention is schematically shown. The device 1 includes a cavity 11 extending along a first direction, and the cavity may be surrounded by an outer casing 10 extending along the first direction. For example, the outer housing may be substantially cylindrical and extend along its axis of extension in the first direction, whereby the cavity also extends along this axis of extension. The device 1 also includes a cement slurry inflow channel 31 and a gas inflow channel 32 communicated with the cavity 11 at one end (ie, the first end) of the cavity 11, and at the other end (ie, the second end) of the cavity 11. ) The foamed grout communicating with the cavity 11 exits the channel 33 . Between the cement slurry inflow channel 31 and ...
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The invention relates to a device used for forming foamed cement paste. The device comprises a cavity extending in the first direction, a cement paste flowing-in channel, a gas flowing-in channel, a foamed cement paste leaving channel and a stirring mechanism; the cement paste flowing-in channel and the gas flowing-in channel are located at the first end of the cavity and communicate with the cavity, the foamed cement paste leaving channel is located at the second end, spaced from the first end, of the cavity and communicates with the cavity, the stirring mechanism is arranged in the cavity and comprises a first blade and a second blade, the first blade and the second blade are located between the first end and the second end and rotate in the direction perpendicular to the first direction, and the first blade and the second blade are spaced in the first direction. Through the device, the foamed cement paste with good uniformity is formed.
Description
technical field [0001] The invention relates to the technical field of foam cement slurry formation, in particular to a device for forming foam cement slurry. Background technique [0002] Foamed cement slurry is usually formed by mixing nitrogen and cement slurry, and it can usually be used in oil and gas well operations, or in building construction. [0003] The existing devices for forming foamed cement slurry are difficult to ensure the uniformity and fineness of the mixed foamed cement slurry. This is mainly because it is difficult to achieve sufficient and uniform contact and mixing of cement slurry and gas in the prior art devices for forming foamed cement slurry. This is usually caused by the cement slurry itself having a certain cohesive shape and relatively poor fluidity. Foam cement slurry with poor uniformity and fineness will make the quality of solid structure obtained by solidification poor, especially its thermal insulation and heat insulation effect will b...
Claims
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IPC IPC(8): B28C5/38
CPCB28C5/383B28C5/385B28C5/386
Inventor 曾义金张晋凯丁士东周仕明初永涛
Owner CHINA PETROLEUM & CHEM CORP