Double-vertical-shaft type flow-state solidified soil stirring device

Abstract

The utility model relates to the technical field of building construction devices, in particular to a double-vertical-shaft type flow-state solidified soil stirring device which comprises a stirring barrel, a stirring driving assembly is arranged at the top of the stirring barrel, two stirring shafts are arranged in the stirring barrel and connected with the stirring driving assembly, and each stirring shaft is provided with a plurality of stirring blades. All the stirring blades are obliquely arranged relative to the horizontal plane; projection parts of circles formed by rotation of the stirring blades on the two stirring shafts on the horizontal plane coincide, the inclination directions of the stirring blades on the two stirring shafts relative to the horizontal plane are the same, and the stirring rotation directions of the two stirring shafts are opposite. The stirring device has the beneficial effects that when the two stirring shafts are used for stirring solidified soil in the stirring barrel, the stirring blades on the two stirring shafts are the same in inclination direction and opposite in rotation direction relative to the horizontal plane, so that a high-speed stirring area can be formed in a partial area between the two stirring shafts, and the stirring strength of the device is improved; and the uniformity and the stability of the components of the stirred flow-state solidified soil meet the construction requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of soil solidification construction devices, in particular to a double-vertical-axis fluidized soil solidification stirring device. Background Art

[0002] Fluidized solidified soil is a new type of building material. Fluidized solidified soil is a mixture of ballast soil, soil hardener (usually cement) and water mixed in a certain ratio to achieve certain performance indicators. It can replace traditional concrete, lime soil foundation and crushed stone concrete in some fields. Fluidized solidified soil has great social significance in energy conservation, emission reduction and comprehensive utilization of industrial solid waste. In the prior art, when producing and processing fluidized solidified soil, it is often necessary to stir and mix its raw materials through a stirring device. However, most of the existing stirring devices use a single-axis stirring method to stir the raw materials. Its stirring structure is relatively simple. During the stirring process, the viscosity of these materials to be stirred is relatively large. The stirring speed of the single-axis stirring device cannot be too high. Therefore, when the single-axis stirring device stirs the fluidized solidified soil material, there are problems of low stirring efficiency and uneven material stirring. This will cause the uniformity and stability of the composition of the fluidized solidified soil produced by it to fail to meet the construction needs. Utility Model Content

[0003] In view of this, in order to improve the mixing efficiency of fluidized solidified soil materials and improve the uniformity and stability of fluidized solidified soil components, the utility model provides a dual-vertical-axis fluidized solidified soil mixing device, including a mixing drum;

[0004] The mixing drum is arranged vertically, a feed inlet and a mixing drive assembly are arranged at the top of the mixing drum, and a discharge port is arranged at the bottom;

[0005] A vertically arranged stirring shaft is respectively arranged on both sides of the feed port, and the two stirring shafts are connected to the stirring drive assembly, and each stirring shaft is provided with a plurality of stirring blades, all of which are perpendicular to the stirring shaft on which they are located, and all of which are arranged obliquely relative to the horizontal plane; the stirring blades on the two stirring shafts are arranged alternately in the axial direction of the stirring shaft, so that the projections of the circles formed by the stirring blades on the two stirring shafts on the horizontal plane overlap;

[0006] The stirring blades on the two stirring shafts have the same inclination direction relative to the horizontal plane and the two stirring shafts rotate in opposite directions.

[0007] Furthermore, the stirring drive assembly includes two stirring motors, both stirring motors are fixed to the top of the stirring drum, and two stirring shafts are respectively connected to the two stirring motors.

[0008] Furthermore, the upper end of the mixing drum is open, and a cover body is provided on the upper end of the mixing drum, and the two mixing motors and the feed port are both located on the cover body.

[0009] Furthermore, the two stirring motors are both vertically mounted on the cover body through motor mounting seats.

[0010] Furthermore, a feeding funnel is also provided on the cover body, the feeding funnel is connected to the feeding port, and the feeding funnel is located between the two stirring motors.

[0011] Furthermore, a dispersion barrier net is provided at the bottom of the cover body, the dispersion barrier net is connected directly below the feed port, and a plurality of feed mesh holes are provided on the dispersion barrier net.

[0012] Furthermore, the mixing drum includes a front baffle, a rear baffle and two side plates of semi-cylindrical structures. The front baffle and the rear baffle are both flat plate structures. The two side plates are connected to the front baffle and the rear baffle, so that the cross-section of the mixing drum is a runway shape. The two mixing shafts are respectively located on the axes of the two semi-cylindrical side plates.

[0013] Furthermore, two vibration components are provided on the top of the mixing drum, and the vibration components include a vibration rod and an exciter for driving the vibration rod to vibrate. Both exciters are fixed on the cover body, and both vibration rods are vertically arranged in the mixing drum.

[0014] Furthermore, a discharge funnel with a conical structure is provided at the bottom of the mixing drum, the discharge port is located at the bottom of the discharge funnel, and a discharge valve is also provided on the discharge funnel.

[0015] Furthermore, it also includes a base plate, a shock-absorbing pad is provided at the bottom of the base plate, the base plate is fixed to the ground by anchor bolts, and the mixing drum is supported on the base plate by a plurality of supporting legs.

[0016] The beneficial effects of the double-vertical-axis fluidized solidified soil stirring device of the utility model are as follows: the fluidized solidified soil stirring device comprises a stirring drum, a feeding port and a stirring drive assembly are arranged at the top of the stirring drum, a discharging port is arranged at the bottom, two vertically arranged stirring shafts are arranged on both sides of the feeding port, the two stirring shafts are connected with the stirring drive assembly, a plurality of stirring blades are arranged on each stirring shaft, all the stirring blades are perpendicular to the stirring shafts on which they are located, and all the stirring blades are arranged inclined relative to the horizontal plane; the stirring blades on the two stirring shafts are arranged alternately in the axial direction of the stirring shafts, the projections of the circles formed by the rotation of the stirring blades on the two stirring shafts on the horizontal plane overlap, the inclination directions of the stirring blades on the two stirring shafts relative to the horizontal plane are the same, and the stirring rotation directions of the two stirring shafts are opposite. When the two stirring shafts stir the solidified soil in the stirring drum, the stirring blades on the two stirring shafts move the solidified soil along the tangent direction of the spiral line of the stirring shaft, and because the stirring blades on the two stirring shafts are inclined in the same direction relative to the horizontal plane or rotate in opposite directions, a high-speed stirring zone can be formed in the partial area between the two stirring shafts, thereby improving the stirring intensity of the device, preventing the soil and cement or other soil hardeners from aggregating into a block structure, thereby improving the stirring efficiency of the fluidized solidified soil stirring device, and improving the uniformity and stability of the composition of the fluidized solidified soil stirred by the stirring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the overall structure of a double-vertical-axis fluidized solidified soil mixing device according to an embodiment of the utility model.

[0018] Figure 2 The utility model is a schematic diagram of the internal structure of a double-vertical-axis fluidized solidified soil mixing device according to an embodiment of the utility model.

[0019] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 The utility model is a top view of a double vertical shaft fluidized solidified soil mixing device.

[0021] In the figure: 1-mixing drum, 11-supporting legs, 12-discharging funnel, 13-discharging port, 14-discharging valve, 2-cover body, 3-base plate, 31-shock-absorbing pad, 32-anchor bolt, 4-feeding funnel, 41-dispersion barrier net, 5-mixing motor, 51-mixing shaft, 52-mixing blade, 6-vibrator, 61-vibration rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present utility model clearer, the implementation mode of the present utility model will be further described below in conjunction with the accompanying drawings.

[0023] Please refer to Figures 1 to 4A dual-vertical-axis fluidized solidified soil mixing device comprises a mixing drum 1 and a base plate 3. A rubber shock-absorbing pad 31 is provided at the bottom of the base plate 3. The base plate 3 is fixed to the ground by anchor bolts 32. The mixing drum 1 is supported on the base plate 3 by a plurality of supporting legs 11, so that the mixing drum 1 is vertically arranged. A feed port and a stirring drive assembly are provided at the top of the mixing drum 1, and a discharge port 13 is provided at the bottom. The feed port is used to pour the material to be mixed (mainly soil and cement) into the mixing drum 1. The supporting legs 11 make the discharge port 13 suspended, so that the discharge port 13 can discharge the completely mixed material conveniently. A discharge valve 14 is provided on the discharge port 13.

[0024] Two vertically arranged stirring shafts 51 are provided on both sides of the feed port, and the two stirring shafts 51 are connected to the stirring drive assembly, and the stirring drive assembly is used to drive the two stirring shafts 51 to rotate. A plurality of stirring blades 52 are provided on each stirring shaft 51, and all the stirring blades 52 are perpendicular to the stirring shaft 51 on which they are located, and all the stirring blades 52 are inclined relative to the horizontal plane, and the lengths of all the stirring blades are equal; the stirring blades 52 on the two stirring shafts 51 are staggered upwardly of the stirring shaft 51, and the projections of the circles formed by the rotation of the stirring blades 52 on the two stirring shafts 51 on the horizontal plane overlap (that is, the distance between the two stirring shafts 51 is greater than the length of the stirring blade 52 and less than twice the length of the stirring blade 52), the stirring blades 52 on the two stirring shafts 51 are inclined in the same direction relative to the horizontal plane, and the two stirring shafts 51 rotate in opposite directions.

[0025] When the stirring device is working, the two stirring blades 52 stir the material in the stirring drum 1 at the same time. Since the stirring blades 52 are inclined relative to the horizontal plane, when the stirring blades 52 rotate, the material is driven to rotate in the horizontal water surface and also to move in the up and down directions (that is, the material moves along the tangent direction of the spiral line of the stirring shaft 51). This can promote the up and down movement of the material and improve the material stirring effect. At the same time, the two stirring blades 52 rotate in opposite directions. A high-speed stirring zone will be formed in the area between the two stirring shafts 51 (that is, near the axial part of the stirring drum 1). The material in this area has a certain initial velocity driven by the stirring blades 52 of one stirring shaft 51, and the stirring blades 52 on the other stirring shaft 51 stir the material at an opposite speed. Therefore, the stirring speed in this area is relatively high. This can improve the stirring intensity of the device, prevent the soil and cement or other curing agent particles from agglomerating into a block structure, thereby improving the stirring efficiency of the fluidized solidified soil stirring device, and improve the uniformity and stability of the composition of the fluidized solidified soil to meet the construction needs.

[0026] Preferably, two vibration components are also provided on the top of the mixing drum 1, and the vibration components include a vibration rod 61 and an exciter 6 for driving the vibration rod to vibrate. The two vibration rods 61 are vertically arranged in the mixing drum 1, and the upper ends of the vibration rods 61 are connected to the exciter 6. The two vibration rods 61 are located on both sides of the two stirring shafts 51 and close to the inner wall of the mixing drum 1, and do not interfere with the rotation of the stirring blades 52 on the stirring shaft 51. The vibration rods 61 are used to vibrate the material when the stirring shaft 51 stirs the material, promote material mixing, and further improve the uniformity of the composition of the fluidized solidified soil stirred by the stirring device.

[0027] Preferably, the mixing drum 1 includes a front baffle and a rear baffle of two flat plate structures and two side plates of a semi-cylindrical structure, and the two side plates are connected to the front baffle and the rear baffle on both sides, so that the cross-section of the mixing drum is an elliptical runway shape (i.e., a playground runway shape), and the two mixing shafts 51 are located on the axes of the two semi-cylindrical side plates, which can increase the proportion of the high-speed mixing zone space relative to the overall space in the mixing drum.

[0028] Preferably, the upper end of the mixing drum 1 is open, and a cover 2 is provided on the upper end of the mixing drum 1. The two stirring motors 5 and the feed port are both located on the cover 2. The cover 2 makes the mixing drum 1 a detachable structure, which is convenient for cleaning the internal cavity of the mixing drum 1. The stirring drive assembly includes two stirring motors 5, both of which are fixed to the top of the mixing drum 1, and two stirring shafts 51 are respectively connected to the two stirring motors 5. Both of the stirring motors 5 are vertically mounted on the cover 2 through a motor mounting seat.

[0029] Preferably, the cover body 2 is also provided with a feed hopper 4, which is connected to the feed port and is located between the two stirring motors 5. A dispersion barrier net 41 is provided at the bottom of the cover body 2, which is connected directly below the feed port and has a plurality of feed mesh holes. The feed hopper 4 facilitates the entry of materials into the mixing drum 1. When the materials enter the mixing drum 1, they pass through the dispersion barrier net 41. The dispersion barrier net 41 prevents the materials from entering the mixing drum 1 in the form of blocks, thereby preventing the block materials from damaging the stirring blades 52. A discharge hopper 12 with a conical structure is provided at the bottom of the mixing drum 1, and the discharge port 13 is located at the bottom of the discharge hopper 12.

[0030] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0031] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual-shaft fluidized solidified soil mixing device, characterized in that: Including mixing drum; The mixing drum is arranged vertically, a feed inlet and a mixing drive assembly are arranged at the top of the mixing drum, and a discharge port is arranged at the bottom; A vertically arranged stirring shaft is respectively arranged on both sides of the feed port, and the two stirring shafts are connected to the stirring drive assembly, and each stirring shaft is provided with a plurality of stirring blades, all of which are perpendicular to the stirring shaft on which they are located, and all of which are arranged obliquely relative to the horizontal plane; the stirring blades on the two stirring shafts are arranged alternately in the axial direction of the stirring shaft, so that the projections of the circles formed by the stirring blades on the two stirring shafts on the horizontal plane overlap; The stirring blades on the two stirring shafts have the same inclination direction relative to the horizontal plane and the two stirring shafts rotate in opposite directions.

2. A dual-vertical-axis fluidized solidification soil mixing device according to claim 1, characterized in that: The stirring drive assembly comprises two stirring motors, both stirring motors are fixed on the top of the stirring drum, and two stirring shafts are respectively connected to the two stirring motors.

3. A dual-shaft fluidized soil mixing device according to claim 2, characterized in that: The upper end of the mixing drum is open, and a cover body is arranged on the upper end of the mixing drum. The two mixing motors and the feed port are both located on the cover body.

4. A dual-shaft fluidized soil mixing device according to claim 3, characterized in that: The two stirring motors are both vertically mounted on the cover body through motor mounting seats.

5. A dual-vertical-axis fluidized solidification soil mixing device according to claim 3, characterized in that: The cover body is also provided with a feeding funnel, the feeding funnel is connected with the feeding port, and the feeding funnel is located between the two stirring motors.

6. A dual-shaft fluidized soil mixing device according to claim 3, characterized in that: A dispersion barrier net is provided at the bottom of the cover body, the dispersion barrier net is connected directly below the feed port, and a plurality of feed mesh holes are provided on the dispersion barrier net.

7. The dual-shaft fluidized soil mixing device according to claim 3, characterized in that: The mixing drum comprises a front baffle, a rear baffle and two side plates of semi-cylindrical structures. The front baffle and the rear baffle are both flat plate structures. The two side plates are connected to the front baffle and the rear baffle, so that the cross-section of the mixing drum is a runway shape. The two mixing shafts are respectively located on the axes of the two semi-cylindrical side plates.

8. A dual-shaft fluidized soil mixing device according to claim 7, characterized in that: Two vibration components are also provided on the top of the mixing drum. The vibration components include a vibration rod and an exciter for driving the vibration rod to vibrate. Both exciters are fixed on the cover body, and both vibration rods are vertically arranged in the mixing drum.

9. The dual-vertical-shaft fluidized soil mixing device according to claim 1, characterized in that: A discharge funnel with a conical structure is provided at the bottom of the mixing drum, the discharge port is located at the bottom of the discharge funnel, and a discharge valve is also provided on the discharge funnel.

10. The dual-shaft fluidized soil mixing device according to claim 1, characterized in that: It also includes a base plate, a shock-absorbing pad is provided at the bottom of the base plate, the base plate is fixed to the ground by anchor bolts, and the mixing drum is supported on the base plate by a plurality of supporting legs.

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