Compound Concrete Mixing System

Abstract

The invention discloses a composite concrete stirring system. The composite concrete stirring system comprises a front-stage stirring device and a rear-stage stirring device; the rear-stage stirring device comprises a rear-stage stirring cylinder, a central stirrer, a first planetary stirrer, a second planetary stirrer and a rear-stage driving mechanism; the outer side wall of the rear-stage stirring cylinder sinks along the radial direction of the rear-stage stirring cylinder to form an annular groove, a heating coil is arranged in the annular groove, a heat conduction insulating layer is arranged between the heating coil and the groove wall of the annular groove, and the stirring cylinder is further sleeved with an insulation heat insulation cylinder; the end surface of the upper end ofa rotating shaft of the first planetary stirrer sinks to form a counter bore structure, and the counter bore is coaxially arranged with the rotating shaft of the first planetary stirrer, a plurality of water spraying holes are uniformly distributed in the side wall of the counter bore, the front-stage stirring device comprises a front-stage stirring barrel, a front-stage stirring shaft and a front-stage driving device; the concrete can be fully stirred, the concrete is kept in a proper temperature and water content range, and the stirring efficiency can be improved.

Description

technical field [0001] The invention relates to civil construction equipment, in particular to a composite concrete mixing system. Background technique [0002] Concrete is a kind of commonly used building material, and concrete is formed after mixing by sand, cement, crushed stone and water, and concrete mixing is realized by agitator, and existing concrete mixer has following defect: First aspect: in the process of concrete mixing , the concrete near the stirring paddle of the mixer can be fully mixed, but the concrete far away from the stirring paddle cannot be fully mixed, especially the coagulation near the side wall of the container of the mixer, often deposits, which seriously Affect the quality of concrete; the second aspect: because the performance of concrete will be affected by temperature, the existing mixer can not maintain the temperature of concrete, especially in low temperature environment, the temperature is too low will lead to concrete freeze-thaw damage,...

AI Technical Summary

Problems solved by technology

[0002] Concrete is a kind of commonly used building material, and concrete is formed after mixing by sand, cement, crushed stone and water, and concrete mixing is realized by agitator, and existing concrete mixer has following defect: First aspect: in the process of concrete mixing , the concrete near the stirring paddle of the mixer can be fully mixed, but the concrete far away from the stirring paddle cannot be fully mixed, especially the coagulation near the side wall of the container of the mixer, often deposits, which seriously Affect the quality of concrete; the second aspect: because the performance of concrete will be affected by temperature, the existing mixer can not maintain the temperature of concrete, especially in low temperature environment, the temperature is too low will lead to concrete freeze-thaw damage, thereby reducing the concrete performance, which seriously affects the building quality; the third aspect: in the process of concrete mixing, it is necessary to add an appropriate amount of water. The existing mixing device directly adds water pipes at one time, and then stirs again. When there is too little water in the concrete, it will affect the sand. The workability of the mixture composed of , cement and crushed stone makes the structural strength of the concrete body poor. At this time, the general method is to add water again through the water pipe, but the amount of water added is not easy to control, resulting in too much water. Excessive moisture will also lead to low coagulation strength of concrete, and the building body is prone to honeycomb during the evaporation process, which also makes the strength of the building structure low; finally, the existing mixer directly pours sand, cement, and gravel into the mixing container In this method, the sand, gravel and cement are originally separated, and the mixing time is long and the efficiency is low.

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