KR101570830B1 - Soil aggregates and continuous mixing device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aggregate mixing apparatus for producing a wastewater layer of a landfill or a road pavement aggregate and vegetation soil, The centrifugal force works not only to remarkably reduce the operation cost but also to improve the efficiency of the improvement of the shape of the aggregate while optimizing the water content of the aggregate and increasing the processing capacity by the continuous mixing process to continuously improve the productivity and economical efficiency. Device.
The main constitution according to the embodiment of the present invention is characterized in that a mixing chamber in which a guide vane is installed up and down at an interval around the inner circumferential surface of the inner space, An inlet disposed at an upper portion of the mixing chamber and having a rotary valve installed therein with gravel and an additive; A shaft installed in the inner space of the mixing chamber so as to be rotatable in a vertical direction and rotated at a high speed by receiving a driving force of the motor; A rotary blade disposed on the shaft at regular intervals above and below and rotatably folded up and down; And a screw housing installed at a lower portion of the mixing chamber and provided with a spray nozzle for spraying water at an upper portion thereof with a double screw rotatably installed therein.

Description

{Soil aggregates and continuous mixing device}

TECHNICAL FIELD The present invention relates to a mixing device for mixing aggregate and soil material for producing vegetation soil by mixing lime, fertilizer, composted soil, etc. with soil for restoration of soil in a wastewater bed of a landfill or pavement aggregate of roads and acidified contaminated agricultural land , More specifically, it is possible to improve the shape improvement efficiency of the aggregate by crushing and abrading the aggregate continuously injected in the mixing process of the aggregate or the gypsum, and it is easy to repair the rotating blades that crush and worn out the aggregate at high speed, Not only does the centrifugal force on the wing significantly reduce the operation cost, but also the water content of the aggregate and the soil is sprayed by transferring and agitating the aggregate and the soil additive (quicklime, sludge, charcoal, fly ash, It is an aggregate that improves productivity and economic efficiency by increasing the processing capacity by continuous mixing process. A description of the continuous mixing device of the gravel.

Generally, construction sites such as waste sanitary landfill sites or dams, reservoirs and drainage basins are constructed with a water barrier layer to prevent leakage of leachate. These aquifer layers are constructed using clay having a relatively low permeability , And clay is difficult to purchase depending on the region. Therefore, the main raw material is selected from the mixed ground materials, which are distributed in Korea.

The slope of the slope is not applicable to the slope of the slope, and the slope of the slope, the cement, the fly ash, the bentonite, the additive, etc. are added to the slope of the slope and the mixed aggregate is used. Generally, A method of mixing raw materials by using an excavator equipped with a bucket and a stabilizer in a back hoe or mixing the raw materials by using a screw type mixer or a cylindrical type mixer as the case may be.

The mixing method of the conventional car-containing raw materials is not limited to the aggregation ratio (soil, marble, sand, etc.) and water or emulsifying agent, As a result, the compaction of the aquifer layer is not robust as the ground layer soil and the mixed material are applied to the aquifer layer in a state in which different mixed materials are not sufficiently mixed. In addition, due to the unbalance of the mixed materials, There was a falling problem.

That is, in the mixing method of the conventional car-receiving material, the blending ratio of the mixed material is dependent on the amount of the car or the worker's eyes, so that the blending ratio can not be optimized to the optimum level and the excavator, screw type mixer, The mixing process is performed using a mixer or the like, so that the mixed materials can not be mixed in a uniform distribution.

Accordingly, the present applicant has proposed a technique for mixing an aggregate (soil, marble, sand, etc.) with a mixed material and water or an emulsifier at a uniform mixing ratio and a water content, and disclosed in Korean Patent Nos. 10-0629458 and 10-0860019 I have suggested.

Korean Patent No. 10-0596615 discloses a prior art that performs the function of improving the shape of recycled aggregate and the function of sorting in the conventional aggregate mixing process. However, the prior art described above hits the mortar or monolith stuck to the recycled aggregate, Since the striking plate performing the improving function is installed on the outer circumference of the rotating shaft, it is difficult to replace and repair the striking plate due to the severe wear of the striking plate, and the operation cost is excessive.

In the prior art, since the mortar or monofilament stuck to the recycled aggregate is rubbed only by friction between the low speed rotation of the striking plate and the aggregate, the improvement of the shape of the aggregate is performed, In the process, the efficiency of improvement of the grain shape of the aggregate is less than expected and the productivity and economical efficiency are deteriorated only by the simple friction function.

Korean Patent No. 10-0860019. Korean Patent No. 10-0629458. Korean Patent No. 10-0596615. Korean Patent No. 10-0666074.

The present invention has been made to solve the problems of low productivity of aggregate in the mixing process of aggregate and soil and low productivity and economical efficiency in continuous mixing process, And the rotating blades that are rotating at high speed on the soil are crushed and abraded to increase the efficiency of improving the shape of the aggregate and the soil and the blending efficiency to increase the processing capacity and to reduce the maintenance cost due to the operation of the rotating centrifugal force on the rotating blades, It is easy to replace and repair by installing the shaft on the shaft so that the wing folds and spreads. It is possible to spray water while conveying and agitating aggregate and soil additives (quicklime, sludge, charcoal, fly ash, Optimize the water content of aggregate and soil, and increase productivity and economy with continuous mixing process. It is an object to provide a continuous mixing apparatus of the aggregate and sediment.

The present invention has been made to solve the above-

A mixing chamber in which a guide vane is installed up and down at regular intervals around the inner circumferential surface of the inner space, and a hopper in which aggregate and gravel are collected and discharged is provided in a lower portion; An inlet disposed at an upper portion of the mixing chamber and having a rotary valve installed therein, the soil and the additive being introduced into an inner space of the mixing chamber; A shaft installed in the inner space of the mixing chamber so as to be rotatable in a vertical direction and rotated at a high speed by receiving a driving force of the motor; A rotary blade disposed on the shaft at regular intervals above and below and rotatably folded up and down; And a screw housing installed at a lower portion of the mixing chamber and provided with a spray nozzle for spraying water at an upper portion thereof with a double screw rotatably installed therein.

In an embodiment of the present invention, the guide vanes are installed in such a manner that the lower end portion of the guide vane is inclined inwardly around the inner circumferential surface so that the gravel and additives to be mixed in the inner space of the mixing chamber are gathered toward the center.

Also, as an embodiment of the present invention, a rotary vane is provided with a flange having a large diameter coupled to a shaft, and a plurality of rotary vanes are installed radially to be rotatable with a hinge ring on the flange.

In an embodiment of the present invention, the screw housing is provided with a double screw rotatably installed therein, an outlet is provided below the end, and a spray nozzle is installed at one side of the screw housing.

According to the embodiment of the present invention, in the mixing process of aggregate and soil, the rotating blades are rotated at a high speed to crush and collide the aggregate and the soil which are continuously inputted, thereby improving the efficiency of shaping and mixing efficiency of aggregate and soil, Since the rotary wing is rotatably installed on the shaft so as to be folded up and down, it is easy to perform replacement and repair work while a strong centrifugal force acts on the rotary wing, thereby reducing the maintenance cost due to the operation.

In addition, the embodiment of the present invention is a method for optimizing water content and mixing efficiency of aggregate and soil by spraying water while conveying and agitating aggregate and soil additive (quicklime, sludge, charcoal, fly ash, As a result, the quality of the aggregate and the soil is further improved and the continuous mixing process is performed, thereby improving the productivity and economical efficiency of the aggregate and the soil.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an aggregate mixing process in an embodiment of the present invention. FIG.
FIG. 2 is an installation view showing an aggregate mixing process in an embodiment of the present invention. FIG.
3 is a sectional view showing an installation state according to an embodiment of the present invention;
4 is a cross-sectional view of the main part showing the operating state according to the embodiment of the present invention.
5 is a cross-sectional view of the main portion showing an operation stop state according to the embodiment of the present invention;
6 is a plan sectional view showing an operating state of a rotary vane in an embodiment of the present invention.
7 is a cross-sectional view of the main part showing the installation state of the screw in the embodiment of the present invention.

Referring to the drawings, a guide vane 61a is installed up and down at an interval around the inner circumferential surface of the inner space, and a hopper 61b A mixing chamber 61 provided with a mixing chamber 61; An inlet 62 installed at an upper portion of the mixing chamber 61 and provided with a rotary valve 62a while the soil and the additive are introduced into the inner space of the mixing chamber 61; A shaft 63 installed in the inner space of the mixing chamber 61 so as to be rotatable in a vertical direction and rotated at a high speed by receiving the driving force of the motor 63c; A rotary blade (64) disposed on the shaft (63) at regular intervals above and below and rotatably folded up and down; And a screw housing 65 installed at a lower portion of the mixing chamber 61 and having a double screw 65a rotatably installed and a spray nozzle 66 for spraying water to one side of the screw housing 65.

In the embodiment of the present invention, as shown in FIGS. 1 and 2, the mixing process of the aggregate, the soil and the mixed material is carried out by feeding the soil slurry supplied to the excavator at the work site from the feed conveyor 10 to the screen separator 20 The soil and foreign matter which are not suitable as aggregate in the screen separator 20 are transported to one side through the conveying conveyor 21 and the soil suitable for the aggregate is conveyed through the input conveyor 22, And fed to the hopper 30.

On the other hand, a certain amount of additive (lime, fertilizer, composted soil, etc.) is fed and fed to the additive hopper 40 in the additive tank 42 and the hopper 40 of the feed conveyor 50, A certain amount of the additive is continuously supplied to the hopper 30 through the gate 31 and a certain amount of the gravel is continuously discharged and supplied to the hopper of the charging conveyor 50 through the conveyor 32. [

The soil and additives supplied to the hopper of the input conveyor 50 are transferred to the aggregate continuous mixing device 60 through the input conveyor 50 and mixed with the soil and the additive in the aggregate continuous mixing device 60 While the water is pumped from the water tank W to the injection nozzle 66 and injected onto the soil and the additive, the mixing process is completed and then transferred to the loading place via the conveying conveyor 70. [

In the continuous aggregate mixing apparatus 60 according to the embodiment of the present invention, the mixing chamber 61 is a closed space in which soil and additives are continuously mixed, and the mixing chamber 61 is formed as shown in FIGS. 2 to 5 A guide vane 61a is installed at a predetermined interval at an upper and lower circumference around the inner circumferential surface of the inner space and the guide vane 61a is mixed in the inner space of the mixing chamber 61 As a function of collecting the soil and the additive in the center, the lower end is inclined inward around the inner circumference.

In the mixing chamber 61, a hopper 61b for discharging aggregate material and gypsum is disposed at a lower portion of the mixing chamber 61, By inclining inward, the aggregate and the gravel are gathered toward the center and discharged.

A plurality of posts 61c are vertically provided on the outer circumferential surface of the mixing chamber 61. The plurality of posts 61c are provided at regular intervals to support the mixing chamber 61 from the ground do.

In the main structure of the embodiment, the inlet port 62 is a function of injecting the soil and the additive transferred through the input conveyor 50 into the inner space of the mixing chamber 61, Likewise, a rotary valve 62a is disposed inside the mixing chamber 61 at one side thereof.

The rotary valve 62a is installed in the inlet 62 so that the soil and the additive can be introduced into the inner space of the mixing chamber 61 while allowing the mixing chamber 61 to be closed as much as possible. Thereby blocking dust, dust and other foreign substances discharged to the outside from the inner space of the mixing chamber 61.

In the main structure of the embodiment, the shaft 63 is a function of rotating the rotary vane 64 at a high speed by rotating the motor 63c at a high speed, and the shaft 63 is shown in Figs. 3 to 5 The upper end portion of the mixing chamber 61 is rotatably installed in the bearing housing through the upper portion of the mixing chamber 61 while the lower end portion of the mixing chamber 61 is located below the inner space of the mixing chamber 61 And is rotatably installed in a bearing housing attached to the support frame 63a.

The support frame 63a is installed across the inner space of the mixing chamber 61 and is provided with a bearing housing at its center. A pulley 63b is coupled to the upper end of the shaft 63, A motor 63c is attached to one side of the pulley 63 and a belt is wound around a pulley coupled to the drive shaft of the pulley 63b and the motor 63c.

Therefore, when the motor 63c is driven, the shaft 63 receives the driving force of the motor 63c via the belt and the pulley 63b, and rotates at a high speed in the inner space of the mixing chamber 61. [

In the main structure of the embodiment, the rotary vane 64 rotates at high speed together with the shaft 63 to crush and collide the particulate aggregate while mixing the soil and the additive. As shown in FIGS. 2 to 5, the mixing chamber 61 is vertically spaced upward and downward at a predetermined distance from the shaft 63, and a plurality of the tubes 63 are radially fastened.

The rotary vane 64 is preferably positioned on the upper side of the guide vane 61a provided around the inner circumferential surface of the mixing chamber 61 and the shaft 63 is provided with a flange 64b And a rotary vane 64 is formed so as to be folded up and down at the flange 64b of the shaft 63 by vertically rotating the flange 64b with a hinge ring 64a.

The rotary vane 64 is elongated by an iron plate and has a turning radius smaller than the inner diameter of the mixing chamber 61 so as to be rotated at a high speed in the inner space of the mixing chamber 61, Is formed in a sawtooth shape to enhance the contact effect with the aggregate.

Therefore, when the motor 63c is driven, the rotary vane 64 rotates together with the shaft 63 at a high speed. When the soil and the additives are continuously supplied through the inlet 62, the granular aggregate mixed in the gravel Crushing and impacting, while the soil and additives are continuously mixed.

In the main structure of the above embodiment, the screw housing 65 functions to adjust the water content by spraying water while conveying and stirring the aggregate mixed and discharged in the inner space of the mixing chamber 61. The screw housing 65 As shown in FIGS. 3 to 5, a double screw 65a is rotatably installed inside the hopper 61b provided below the mixing chamber 61. The double screw 65a is rotatably installed inside the hopper 61b.

7, as the double screw 65a rotates in the inner space, the screw housing 65 is moved in one direction while the aggregate and the gravel are being conveyed in one direction, And an injection nozzle 66 is provided at an upper portion of one side.

The injection nozzle 66 pumps water through the pump from the water tank W and injects a certain amount of water to the aggregate and the soil which are conveyed and stirred through the double screw 65a, And the water content is regulated to within 20%.

5, when the motor 63c is stopped, a plurality of rotary vanes 64 are folded down from the flange 64b of the shaft 63, When the motor 63c is driven in the state shown in Fig. 4, the rotary centrifugal force acts on the rotary vane 64 as the shaft 63 and the rotary vane 64 rotate together at a high speed, ) Is gradually expanded to the upper part, and the continuously fed aggregate is crushed and impacted to increase the grain improvement efficiency and mixing efficiency of the aggregate, while the rotating centrifugal force acts strongly.

In addition, in the embodiment of the present invention, the double screw 65a rotates in the screw housing 65 to spray water from the injection nozzle 66 while conveying and stirring the aggregate material and the gravel having been subjected to the mixing process to the discharge port 65b The water content of the aggregate and the soil is optimized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It is possible to carry out various changes in the present invention.

10: feed conveyor 20: screen discriminator
30: Tosser hopper 40: Additive hopper
50: Feeding conveyor 60: Aggregate continuous mixing device
61: mixing chamber 61a: guide van
62: inlet 62a: rotary valve
63: shaft 63a: support frame
63b: pulley 63c: motor
64: rotary blade 64a: hinge ring
65: screw housing 65a: screw
66: injection nozzle 70: conveying conveyor

Claims (5)

A mixing chamber 61 in which a guide vane 61a is installed up and down at regular intervals around the inner circumferential surface of the inner space and a hopper 61b in which aggregate and gravel are collected and discharged is provided in the lower part; An inlet 62 installed at an upper portion of the mixing chamber 61 and provided with a rotary valve 62a while the soil and the additive are introduced into the inner space of the mixing chamber 61; A shaft 63 installed in the inner space of the mixing chamber 61 so as to be rotatable in a vertical direction and rotated at a high speed by receiving the driving force of the motor 63c; A rotary blade (64) disposed on the shaft (63) at regular intervals above and below and rotatably folded up and down; And a screw housing (65) installed at a lower portion of the mixing chamber (61) and having a double screw (65a) rotatably installed therein,
The rotary vane 64 is provided with a flange 64b having a large diameter coupled to the shaft 63. The rotary vane 64 is mounted on the flange 64b with a hinge ring 64a so as to be vertically rotatable,
Characterized in that the screw housing (65) is provided with a double screw (65a) rotatably inside thereof, an outlet (65b) below the end thereof, and an injection nozzle (66) Continuous mixing device. delete delete delete delete

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