Concrete mixing device for water conservancy engineering

Abstract

The invention discloses a concrete mixing device used for hydraulic engineering. The concrete mixing device comprises a mixing barrel. The mixing barrel is a vertical mixing barrel with an opening facing upwards. A mixing component used for mixing is mounted in the mixing barrel. The mixing barrel is of a cuboid structure. A digging mixing portion comprises a plurality of digging mechanisms. All the digging mechanisms are arranged in a row in the length direction of the opening of the mixing barrel, and the adjacent digging mechanisms are arranged in a staggered mode in the front-back and left-right directions. Each digging mechanism comprises a rotary arm and a digging arm which are driven by a motor. The rotating directions of the motors on every two adjacent digging mechanisms are opposite. A rotary component is mounted under turning portions of every two adjacent digging mechanisms, wherein four rows of mixing blades are mounted at four quadrantal points of a section circle of a drum correspondingly, and each row of mixing blades is arranged in the radial direction of the drum. According to the concrete mixing device used for hydraulic engineering, mixing is uniform, the concrete mixing quality is greatly improved, and the applicability of the concrete mixing device particularly to concrete preparation of medium hydraulic projects is higher.

Description

technical field [0001] The invention belongs to the technical field of hydraulic engineering, in particular to a concrete preparation device used in hydraulic engineering. Background technique [0002] Concrete is used in all kinds of civil engineering, and some special engineering types are required to have unusual performance. In water conservancy projects, because field work is often required, and the transportation is extremely inconvenient, if the concrete is directly transported from the mixing station Not only is it time-consuming, but it is also difficult to transport. Therefore, in many cases, direct delivery from the mixing station is not suitable for some small and medium-sized water conservancy projects. The area involved is large, and the requirements for concrete are naturally high. The long-distance transportation makes the concrete easy to fail, and the closer to its final setting time, the poorer the performance, so it needs to be mixed on site. At present,...

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Problems solved by technology

[0002] Concrete is used in all kinds of civil engineering, and some special engineering types are required to have unusual performance. In water conservancy projects, because field work is often required, and the transportation is extremely inconvenient, if the concrete is directly transported from the mixing station Not only is it time-consuming, but it is also difficult to transport. Therefore, in many cases, direct delivery from the mixing station is not suitable for some small and medium-sized water conservancy projects. The area involved is large, and the requirements for concrete are naturally high. The long-distance transportation makes the concrete easy to fail, and the closer it is to its final setting time, the poorer the performance. Therefore, on-site mixing is required.

At present, the equipment for mixing concrete on site is usually as follows: figure 1 The stirring equipment shown is a cylinder with an opening facing upwards, and a rotatable stirring shaft is coaxially installed inside, and the stirring shaft is provided with a circle of blades in the radial direction for circular stirring. Concrete rotates continuously in one direction, and the mixing is easy to be uneven, and due to its own weight, the concrete will naturally settle down, especially the aggregate, resulting in more aggregate at the bottom of the mixing tank, and the upper and lower concrete are actually stratified to a certain extent. Phenomenon, which greatly affects the quality of concrete preparation, resulting in the unqualified proportioning accuracy of some concrete

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