Stirring device for recycled concrete

Abstract

The utility model relates to the technical field of recycled concrete production, in particular to a stirring device for recycled concrete, and aims to solve the technical problem that recycled aggregate which is difficult to flow is difficult to be fully mixed with water and fine aggregate in a short time. Comprising a regenerated material feeding channel, a fine aggregate feeding channel, a slope crest material guide plate, a discharging port, a gradually-shrinking channel, a stirring barrel, an input shaft and an output port, regenerated aggregate and fine aggregate are injected through the regenerated material feeding channel and the fine aggregate feeding channel respectively, and under the guiding effect of the slope crest material guide plate, the two kinds of aggregate are divided into multiple sections to fall into the stirring barrel in a staggered mode; under the guiding and stirring effects of the spiral blades, the two kinds of aggregate divided into a plurality of small parts are evenly mixed and discharged through the output port, and the two kinds of mixed aggregate cannot be separated when water is added in the follow-up procedure and can be rapidly mixed with water to complete stirring. The technical problem that recycled aggregate difficult to flow is difficult to fully mix with water and fine aggregate within a short time is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of recycled concrete production, and specifically to a mixing device for recycled concrete. BACKGROUND

[0002] In the construction industry, with the acceleration of urbanization, the amount of construction waste is increasing rapidly. According to statistics, construction waste accounts for about 30%-40% of the total amount of municipal solid waste. If these wastes cannot be effectively treated, they will occupy a large amount of land for storage. For example, there are special construction waste landfills around many cities, and the space of these landfills is increasingly tight.

[0003] At the same time, the demand for natural sand and other raw materials in the construction industry is continuously strong. Over-exploitation of natural sand will lead to a series of environmental problems such as river ecological destruction and landslides. In this case, recycled concrete technology emerges as the times require, which can recycle construction waste such as waste concrete to produce recycled concrete and reduce dependence on natural resources.

[0004] The raw materials of recycled concrete mainly include recycled aggregates such as waste concrete blocks and crushed bricks after crushing, and their composition and properties are more complex than natural aggregates. The recycled aggregate has a rough surface, high porosity and strong water absorption, which leads to poor flowability of the recycled aggregate during mixing. The transmission mixing device simply injects the recycled aggregate, water and fine aggregate into the mixing and stirring during stirring, and it is difficult to fully mix the difficult-to-flow recycled aggregate in a short time. SUMMARY

[0005] The utility model discloses in order to solve the technical problem that the difficult-to-flow recycled aggregate is difficult to fully mix with water and fine aggregate in a short time, and further provides a mixing device for recycled concrete.

[0006] To achieve the above object, the utility model provides the following technical scheme: a mixing device for recycled concrete, comprising: a recycled material feeding channel, a plurality of fine aggregate feeding channels are arranged at equal intervals inside the recycled material feeding channel, the inner wall of the recycled material feeding channel is connected with the slope top guide plate on both sides of each fine aggregate feeding channel, the lower part of each fine aggregate feeding channel is connected with the inner part of the slope top guide plate on both sides through the discharge port, the lower part of the recycled material feeding channel and the slope top guide plate is connected with the stirring drum through the taper channel, the shaft center of both ends of the stirring drum is rotationally connected with the input shaft, the input shaft is connected with the spiral blade, and the output port is arranged at the end of the stirring drum along the conveying direction of the spiral blade

[0007] Preferably, the length of the stirring drum is greater than the length of the recycled material feeding channel, and the end of the stirring drum away from the output port is flush with the end of the recycled material feeding channel.

[0008] Preferably, the upper end of the recycled material feeding channel is connected with a hopper, and the upper ends of the plurality of fine aggregate feeding channels are connected with a hopper two.

[0009] Preferably, the helical blade on the input shaft is formed by a plurality of helical blades with gaps, and the helical blade gaps are connected with stirring blades.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] 1. The recycled aggregate and the fine aggregate are respectively injected through the recycled material feeding channel and the fine aggregate feeding channel, and under the guiding action of the slope top material guide plate, the two kinds of aggregates are divided into multiple segments and fall into the stirring drum in a staggered manner. Under the guiding and stirring action of the helical blade, the two kinds of aggregates divided into multiple small parts are uniformly mixed and discharged through the output port. The two kinds of aggregates that have been mixed are not separated by adding water in the subsequent process, but quickly mixed with water to complete the stirring, thereby solving the technical problem that the recycled aggregate that is difficult to flow is difficult to fully mix with water and fine aggregate in a short time.

[0012] 2. The output port is away from the end part of the recycled material feeding channel, thereby increasing the stirring and mixing time of the end part feeding and avoiding the risk that the end part feeding is discharged without mixing. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The structure of the utility model is shown Figure 1 ;

[0014] Figure 2 The structure of the utility model is shown Figure 1 ;

[0015] Figure 3 The structure of the utility model is shown Figure 2 ;

[0016] Figure 4 The structure of the utility model is shown Figure 2 .

[0017] In the drawing: recycled material feeding channel 1; fine aggregate feeding channel 2; slope top material guide plate 3; discharge port 4; tapered channel 5; stirring drum 6; input shaft 7; output port 8; hopper one 9; hopper two 10; helical blade 11; stirring blade 12. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] The rotating connection in the device refers to that the bearing is baked on the shaft, the shaft or the shaft hole is provided with a spring retainer groove, the shaft is axially fixed by clamping the elastic retainer in the retainer groove, and rotation is realized.

[0020] The utility model will be explained in detail below in combination with the drawings.

[0021] The utility model discloses a stirring device for recycled concrete, including: recycled material feeding channel 1, a plurality of fine aggregate feeding channels 2 are arranged at equal intervals in the recycled material feeding channel 1, and the two sides of each fine aggregate feeding channel 2 are connected with the inner wall of the recycled material feeding channel 1 through the slope top material guide plate 3. Figures 1-4 The utility model discloses a stirring device for recycled concrete, including: recycled material feeding channel 1, a plurality of fine aggregate feeding channels 2 are arranged at equal intervals in the recycled material feeding channel 1, and the two sides of each fine aggregate feeding channel 2 are connected with the inner wall of the recycled material feeding channel 1 through the slope top material guide plate 3.

[0022] When stirring, the recycled aggregate and fine aggregate pass through the recycled material feeding channel 1 and the fine aggregate feeding channel 2, the recycled aggregate slides down the two sides of the slope top material guide plate 3 under the guidance of the slope top of the slope top material guide plate 3, the fine aggregate enters the fine aggregate feeding channel 2 and slides down the inside of the slope top material guide plate 3 through the discharge port 4, and the two kinds of aggregate are divided into multiple sections and guided to fall into the stirring drum 6 through the gradually tapered channel 5.

[0023] The length of the stirring drum 6 is greater than the length of the recycled material feeding channel 1, and the end of the stirring drum 6 away from the output port 8 is flush with the end of the recycled material feeding channel 1.

[0024] The output port 8 is away from the end of the recycled material feeding channel 1, which increases the stirring and mixing time of the material at the end of the recycled material feeding channel 1 into the stirring drum 6, and avoids the risk of discharging without mixing.

[0025] The upper end of the recycled material feeding channel 1 is connected with the hopper one 9, and the upper ends of the plurality of fine aggregate feeding channels 2 are connected with the hopper two 10.

[0026] The effective area of the feeding port is increased through the hopper one 9 and the hopper two 10, which facilitates feeding.

[0027] The helical blades on the input shaft 7 are formed by a helical arrangement of a plurality of helical blades 11 with gaps, and the helical blades 11 with gaps are connected by stirring blades 12.

[0028] The helical arrangement of a plurality of helical blades 11 with gaps guides the two kinds of aggregates to be stirred and mixed in the stirring drum 6, reduces the conveying speed but enhances the stirring effect, and cooperates with the stirring blades 12 to make the mixing more uniform.

[0029] In the description of the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0030] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt the conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0031] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mixing apparatus for recycling concrete, characterised in that: The utility model relates to a recycling material feeding channel (1) is internally arranged with multiple fine aggregate feeding channels (2) at equal intervals, both sides of each fine aggregate feeding channel (2) are connected with the inner wall of recycling material feeding channel (1) through slope top material guide plate (3), the lower part of each fine aggregate feeding channel (2) is connected with the inside of both sides slope top material guide plate (3) through discharge port (4), the lower part of recycling material feeding channel (1) and slope top material guide plate (3) are connected with stirring drum (6) through taper channel (5), the both ends axle core of stirring drum (6) is rotatably connected with input shaft (7), the input shaft (7) is connected with spiral blade, and the end of stirring drum (6) is provided with output port (8) along the conveying direction of spiral blade. The length of stirring drum (6) is greater than the length of recycling material feeding channel (1), and the end of stirring drum (6) away from output port (8) is flush with the end of recycling material feeding channel (1).

2. A mixing apparatus for recycled concrete according to claim 1, characterised in that: The upper end of recycling material feeding channel (1) is connected with hopper one (9), and the upper end of multiple fine aggregate feeding channels (2) is connected with hopper two (10).

3. A mixing apparatus for recycling concrete as defined in claim 1, wherein: The spiral blade on input shaft (7) is formed by the spiral arrangement of multiple spiral pieces (11) with gaps, and stirring blade (12) is connected between the gaps of spiral pieces (11).

4. A mixing apparatus for recycling concrete as defined in claim 1, wherein: ​

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