KR102196591B1 - Mill for the producing of recycled aggregate from construction waste - Google Patents

Abstract

The present invention relates to a mill for recycled aggregate crushed during an intermediate treatment process of construction waste. The mill for producing recycled aggregate from construction waste rubs and grinds raw aggregate between a lower liner and an upper liner, and grinds the raw aggregate by rubbing the raw aggregate with the lower liner and the upper liner to improve the grinding efficiency of the raw aggregate, and as a result, to effectively peel off foreign substances such as mortar, etc. on the surface of the raw aggregate. Further, the sharp angular part is removed to obtain recycled aggregate close to a spherical shape, and a concave diagonal groove is formed in the lower liner to efficiently discharge foreign substances, thereby increasing the effectiveness of the recycled aggregate.

Description

Mill for the producing of recycled aggregate from construction waste}

The present invention relates to a grinder for producing recycled aggregate from construction waste, and more particularly, by grinding the raw aggregates by rubbing them against each other, foreign substances such as mortar on the surface of the raw aggregate are peeled off, and sharp portions are removed. It relates to a grinder for producing recycled aggregate from construction waste capable of obtaining high quality recycled aggregate.

In general, the process of producing recycled aggregate through intermediate treatment of construction waste is accomplished through crushing, separating foreign substances, and sorting. In order to produce recycled aggregate for concrete, the mortar from the aggregate, which has been crushed and pulverized, and foreign substances are selected, is removed, and the mortar adhered to the aggregate is peeled off through the fifth to sixth crushing and pulverization to lower the absorption rate and increase the density.

The method of peeling the mortar is dry and wet, but currently developed technologies are mostly wet processes, and thus, there is a problem in that sludge, which is a secondary pollutant, is generated with high equipment cost. In addition, in order to meet the quality standards, most of the mortar attached to the aggregate must be removed. However, when a strong force is applied, the aggregate itself is cracked, and when a weak force is applied, the mortar is not properly removed.

Republic of Korea Patent Publication No. 10-2016-0141338 (2016.12.08)

The present invention is to solve the above problems, by rubbing against each other and grinding the raw aggregates that have undergone a pretreatment process such as crushing, peeling off foreign substances such as mortar on the surface of the raw aggregates, and removing sharp parts to close to a spherical shape. The purpose is to provide a grinder for producing recycled aggregate from construction waste that obtains high-quality recycled aggregate, and in particular, increases grinding efficiency by rubbing and grinding on a plane without rotating the raw aggregate and quickly discharging the ground recycled aggregate. There is this.

The present invention is disposed to be inclined downward toward the ground and installed to be back and forth, and a porous lower liner having an uneven upper surface; A forward and backward driving means for forcibly moving the lower liner back and forth; The lower liner and the upper liner include a caterpillar upper liner having a concave-convex surface and a linear reciprocating movement force of the lower liner and a caterpillar rotational force of the upper liner. Foreign matter is peeled off the surface of the recycled aggregate that rubs between the liners, and the recycled aggregate is ground into a spherical shape, and the lower liner has an intaglio groove 16 formed on the upper surface of the uneven plate, and the foreign matter is discharged from the uneven start part. It provides a grinder for producing recycled aggregate from construction waste, characterized in that it is formed deeper toward the hole (11).

The grinding machine for producing recycled aggregate from construction waste according to the present invention, grinding the raw aggregate by rubbing it with each other between the lower liner and the upper liner, and grinding the raw aggregate by rubbing the lower liner and the upper liner to grind the grinding efficiency of the raw aggregate. As a result, foreign substances such as mortar on the surface of the raw aggregate are effectively peeled off, and sharp angled portions are removed to obtain a circular aggregate close to a spherical shape, and intaglio grooves are formed in the lower liner to remove foreign substances. Since it can be discharged efficiently, the effectiveness of recycled aggregate can be improved.

1 is an overall configuration diagram of a crusher for producing recycled aggregate from construction waste according to the present invention.
2 is an enlarged view of the main parts of the lower liner and the upper liner applied to the crusher for producing recycled aggregate from construction waste according to the present invention.
3 is a front view of a lower liner applied to a crusher for producing recycled aggregate from construction waste according to the present invention.
Figure 4 is a top view of the lower rider applied to the crusher of the recycled aggregate crushed during the intermediate processing of construction waste according to the present invention.
4 is a side view of a lower rider applied to a grinder of recycled aggregate crushed during an intermediate processing of construction waste according to the present invention.
6A and 6B are a side view and a front view showing the installation structure of a frame applied to a crusher for producing recycled aggregate from construction waste according to the present invention, respectively.
7 is a block diagram of a forward and backward driving means applied to a grinder for producing recycled aggregate from construction waste according to the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in more detail with reference to the accompanying drawings in order to describe the present invention in more detail. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

As shown in Figure 1, the grinder for producing recycled aggregate from construction waste according to the present invention, the lower liner 10 and the upper liner 20 are spaced apart at a predetermined interval, and the lower liner 10 is front and rear. The upper liner 20 is reciprocally moved and rotates in a caterpillar track (the direction of progress of the recycled aggregate), removing foreign substances (for example, mortar) from the surface of the recycled aggregate by mutual friction of the recycled aggregate and removing the sharp part of the recycled aggregate. .

1 to 3, the lower liner 10 is a plate material having an uneven upper surface in order to increase the grinding efficiency of the recycled aggregate, and a plurality of foreign matter discharge holes 11 for discharging foreign matter and fine powder peeled from the recycled aggregate. It is porous. At this time, the convex portion also performs a function of transferring the recycled aggregate (A) toward the outlet.

The lower liner 10 may be installed through a separate frame 12. When the frame 12 is applied, the lower liner 10 is detachably fastened to the upper surface of the frame 12 through a fastener, and moves back and forth together with the frame 10.

At this time, all parts of the lower liner 10 will not be equally worn and partial wear will occur, and when this part is worn, the lower liner 10 can be replaced without replacing the entire lower liner 10 10) is divided into multiple pieces.

The lower liner 10 is disposed to be inclined downward toward the ground to allow natural discharge of the recycled aggregate (A).

3, the lower liner 10 is disposed under the upper liner 20 to provide a basic space for grinding, and when grinding the recycled aggregate (A), the recycled aggregate (A) and/or foreign matter Blocking jaws 13 are formed so that (W) does not deviate through both sides of the lower liner 10 in the width direction.

Like the lower liner 10, the upper liner 20 has an uneven upper surface to increase grinding efficiency. Since the upper liner 20 will only perform grinding of the recycled aggregate (A), a foreign material discharge hole will not be formed.

The upper liner 20 may be ground even if it is in a stationary state because the lower liner 10 moves back and forth, but the recycled aggregate (A) can be discharged naturally along the slope of the lower liner 10 in a caterpillar track. It is constructed in a rotating manner.

For example, the upper liner 20 may be manufactured and driven in a caterpillar type, or it may be detachably coupled to the surface of a separate caterpillar belt 21 through a fastener and driven through the belt 21. .

The rotational direction of the upper liner 20 maintains a direction (clockwise as in FIG. 1) that assists without interfering with the discharge of the recycled aggregate (A).

It is the same as the lower liner 10 that the upper liner 20 is divided into a plurality for maintenance.

Since the structure and driving method of the belt 21 are the same as those of the existing belt, a detailed description will be omitted.

However, one or more pressing rollers may be provided to press the recycled aggregate (A) toward the lower liner 10 during grinding of the recycled aggregate (A).

Each of the lower liner 10 and the upper liner 20 is made of special steel (such as high manganese) to minimize wear due to friction with the recycled aggregate (A).

The formation of the uneven portions in the lower liner 10 and the upper liner 20 is to increase grinding efficiency through the convex portions, and the uneven portions are alternately formed in the longitudinal direction of the lower liner 10 and the upper liner 20. .

As shown in FIGS. 4 and 5, the lower liner 10 has an intaglio oblique groove 16 formed on the upper surface of the uneven plate material, and is formed deeper from the uneven start portion to the foreign matter discharge hole. Small-sized foreign matters are collected in the diagonal grooves, and as they move back and forth, the foreign matters are pushed into the foreign matter discharge hole to efficiently discharge the foreign matters, and friction with the upper liner increases, so that it is easy to spheroidize the recycled aggregate. The diameter of the diagonal groove is not particularly limited, but specifically, may be smaller than the size of the recycled aggregate and larger than the size of the foreign matter discharged.

In addition, the upper liner 20 may further include a crushing unit for pulverizing the raw aggregate.

Specifically, the crushing part includes a pair of support parts and a cover part on both sides of the upper liner, the support part includes a guide panel and a vertical support, the upper part of the cover part is provided with a plurality of pressing rollers or presses, and the upper part of the cover part A separation membrane is provided at the end of the liner to control the amount of pulverized raw aggregate.

The pressing roller or the pressing press of the cover part serves to crush the raw aggregate flowing into the upper liner. The pressing roller may pulverize the raw aggregate through friction between the upper liner and the raw aggregate while rotating, and the pressing press may pulverize the raw aggregate using a force that reciprocates up and down.

The separation membrane may be made of plastic of a flexible material so as not to interfere with the movement of the pulverized raw aggregate.

As shown in Fig. 6, the frame 12 must be installed so that left and right twist does not occur during a linear reciprocating movement, for example, a guide rail 15 is installed at a predetermined interval at the bottom of the frame 12, and the frame 12 ) At the bottom of the guide rail 15 is provided with a roller 14 that moves linearly and reciprocally.

If frame 12 is not applied, roller 14 will be installed on lower liner 10.

For example, the lower liner 10, the frame 12, and the forward and backward driving means are height adjustment means (e.g., a cylinder, a height of a stretchable double structure) so that the grinding space can be adjusted according to the particle size of the recycled aggregate (A). Adjustable legs) can be installed to be adjustable in height. Although this height adjustment structure is not specifically shown in the drawings, it will be sufficiently implemented by those skilled in the art.

The forward and backward driving means for reciprocating the lower liner 10 back and forth is connected to the driving motor 30, the driving motor 30 and the frame 12, as shown in FIG. 7, and the driving motor 30 It consists of a crankshaft (31) that converts the rotational force of the linear reciprocating motion.

In the drawings, reference numeral 1 denotes a product conveying conveyor for conveying the recycled aggregate (A), and 2 denotes a foreign matter conveying conveyor that conveys the foreign matter (W). Specifically, the product transfer conveyor for transferring the recycled aggregate rotates in the opposite direction to the foreign material transfer conveyor for transferring the foreign material. For example, when the product conveying conveyor rotates counterclockwise based on FIG. 1, the foreign matter conveying conveyor rotates clockwise to prevent foreign matters from being mixed into the product conveying conveyor.

The operation of the crusher for producing recycled aggregate from construction waste according to the present invention is as follows.

The raw aggregate (referring to the state in which there are foreign substances such as mortar and sharp portions on the surface) that has undergone an intermediate treatment process is introduced into the space between the lower liner 10 and the upper liner 20, that is, the upper surface of the lower liner 10 .

Prior to the input of the raw aggregate, the lower liner 10 is moving back and forth through the forward and backward driving means, and the upper liner 20 is infinitely rotated in the discharge direction of the recycled aggregate A (left as referenced in FIG. 1).

Accordingly, the raw aggregate input between the lower liner 10 and the upper liner 20 is compressed by the lower liner 10 and the upper liner 20 in the gap between the lower liner 10 and the upper liner 20, In this process, foreign substances on the surface of the raw aggregate are peeled off by physical impact, and sharp parts are also removed.

In addition, the raw aggregate is more effectively ground between the convex portions of the convex portions facing the lower liner 10 and the upper liner 20, so that the peeling of foreign substances and sharp portions are effectively removed.

In addition, when the lower liner 10 moves forward, the lower liner 10 and the upper liner 20 move in opposite directions, so that foreign matter peeling from the raw aggregate and the removal of sharp portions can be made more effectively. That is, the lower liner 10 grinds the raw aggregate while moving backward (the direction opposite to the rotation direction of the upper liner 20), and moves the raw aggregate to the outlet side while moving forward (the same direction as the rotation direction of the upper liner 20). I can.

Since the raw aggregate is continuously ground while moving toward the product transfer conveyor 1 along the lower liner 10 and the upper liner 20, the recycled aggregate A falling on the product transfer conveyor 1 has a surface such as mortar. It is close to a sphere with no foreign matter and no sharp parts.

On the other hand, through the foreign matter discharge hole 11 of the lower liner 10, foreign matters, fine powder, etc., which are ground by the lower liner 10 and the upper liner 20, are discharged to the foreign matter conveying conveyor 2. At this time, since the lower liner 10 moves back and forth, the foreign matter discharge hole 11 is not blocked and the foreign matter W can be discharged. In addition, when foreign substances such as ground foreign substances and fine powder are collected in the oblique groove 16 formed in the lower liner 10, the lower liner 10 may be effectively discharged into the foreign substance discharge hole when the lower liner 10 moves back and forth.

10: lower liner, 11: foreign matter discharge hole
12: frame, 13: blocking jaw,
14: roller, 15: guide rail, 16: oblique groove
20: upper liner, 21: belt
22: pressure roller, 30: drive motor
31: crankshaft

Claims (7)

A porous lower liner 10 having an uneven upper surface and an uneven upper surface while being disposed to be inclined downward toward the ground so as to be installed forward and backward;
A forward and backward driving means for forcibly moving the lower liner back and forth;
An upper liner spaced apart from each other with a predetermined gap on the lower liner and having an uneven surface;
It includes a pulverization unit for pulverizing the raw aggregate at the upper end of the upper liner,
Foreign matters are peeled off the surface of the recycled aggregate that rubs between the lower liner and the upper liner by the linear reciprocating movement force of the lower liner and the caterpillar rotational force of the upper liner, and the recycled aggregate is ground into a spherical shape,
The crushing portion includes a pair of support portions and a cover portion on both sides of the upper liner, and includes a separation membrane for adjusting the amount of movement of the pulverized raw aggregate at an end portion of the upper liner of the cover portion,
The lower liner is a grinder for producing recycled aggregate from construction waste, characterized in that an intaglio groove (16) is formed on the upper surface of the uneven plate, and is formed deeper from the uneven start portion to the foreign matter discharge hole (11) . The method of claim 1,
A grinder for producing recycled aggregate from construction waste, characterized in that a plurality of the lower liner or the upper liner are divided and formed. The method according to claim 1 or 2,
Circulation from construction waste, characterized in that it includes a blocking jaw (13) formed at both ends of the lower liner in the width direction protruding upwardly to block the circulating aggregate ground from the upper portion of the lower liner from escaping to the outside. A grinder to produce aggregate. The method of claim 3,
The lower liner is a crusher for producing recycled aggregate from construction waste, characterized in that the lower liner is fixed to the upper portion of the frame (12) erected at a certain height from the ground and moves back and forth with the frame. The method of claim 4,
Producing recycled aggregate from construction waste, characterized in that it comprises a guide rail 15 that is spaced apart from the bottom of the frame and is fixed to the bottom of the frame and moves along the guide rail. A grinder for making. The method of claim 5,
The forward and backward driving means includes a driving motor 30, a crankshaft 31 connected to the driving motor and the frame and converting the rotational force of the driving motor into a linear reciprocating motion, circulating from construction waste. A grinder to produce aggregate. The method of claim 1,
A crusher for producing recycled aggregate from construction waste, characterized in that a pressure roller or a pressure press is provided on the cover part.

Images