KR101034664B1 - Multi-layer crusher for construct waste and recycled aggregate producing facility generated on intermediate treatment of construct and domestic waste using this - Google Patents

Abstract

PURPOSE: A multi-stage crusher for constructional wastes is provided to perform a series of processes such as from the selection of construction wastes to the crushing. CONSTITUTION: A multi-stage crusher for constructional wastes includes: a first crushing unit(100) for crushing the supplied raw aggregates; and a second crushing unit(200) which is arranged in the bottom of the first crushing unit and crushes the first crushed material. The first crushing unit includes a first housing(110) opened toward an inlet and the second crushing unit, a first jaw plate(120) installed in one side of the inside of the first housing; and a first hammer(130) for crushing raw aggregates with the first jaw plate.

Description

MULTI-LAYER CRUSHER FOR CONSTRUCT WASTE AND RECYCLED AGGREGATE PRODUCING FACILITY GENERATED ON INTERMEDIATE TREATMENT OF CONSTRUCT AND DOMESTIC WASTE USING THIS}

The present invention relates to a multi-stage crusher for construction waste and a circulating aggregate production facility generated during an intermediate treatment process of construction waste using the same, and more particularly, to stack two or more crushing units to stack large aggregate aggregates into small-sized aggregates. The present invention relates to a multi-stage crusher for construction wastes that can be reduced and moved by crushing.

In addition, the present invention is set to move to the demolition site in which construction waste is generated circulating aggregate produced during the intermediate treatment process of construction waste using a multi-stage crusher for construction waste that can perform a series of processes, such as the sorting and shredding of construction waste It is about facility.

In general, construction wastes and waste ascons are caused by aging and reconstruction of civil engineering or buildings, road repair works, and deterioration of buildings, which inevitably releases foreign substances and natural earth and sand.

In addition, the construction waste, which is generally composed of inorganic materials and harmless to the human body can be recycled, but in the meantime, the quality is degraded during regeneration, and most of the construction wastes are used for the formation of foundation ground such as fill, cover and landfill.

Therefore, construction waste production facilities are known for increasing the recycling rate of construction waste.

Construction waste production facilities according to the prior art usually consist of sorting-crushing and the like.

On the other hand, conventional construction waste production facilities transport construction wastes to construction waste treatment sites using transport vehicles at construction waste generation sites (demolition sites), and the cost of transportation costs is very high. Therefore, only the construction waste generated near the construction waste treatment site is treated. In other words, when the construction waste is transported to the construction waste treatment site from a distance, a large portion of the waste is transported, which is not profitable.

In addition, even if only the construction waste generated from a short distance in order to reduce the burden of transportation costs, the conventional construction waste production facility itself requires a large site, there is a big initial investment cost. For example, the construction waste treatment site is composed of devices that function differently, such as a crusher and a sorter, and a plurality of crushers are installed to crush large aggregates into small sizes, and a plurality of crushers are installed side by side. It requires a large area. Of course, it is also possible to break large chunks of aggregate into small sized aggregates with only one shredder, but this decreases the efficiency and the size of the shredder becomes too large.

The present invention is to solve the problems as described above, to provide a multi-stage shredder for construction waste by stacking two or more shredding parts to shred a large aggregate aggregate into a small size aggregate to reduce the site and to move There is a purpose.

Another object of the present invention is to move to a demolition site in which construction wastes are generated, which is generated during an intermediate treatment process of construction wastes using a multi-stage crusher for construction wastes that can perform a series of processes such as sorting and crushing construction wastes. The purpose is to provide recycling aggregate production facilities.

Multi-stage shredder for construction waste according to the present invention for achieving the object as described above, the primary shredding unit for primary shredding the raw aggregate supplied; It is disposed at the bottom of the primary crushing unit and includes a secondary crushing unit for crushing the primary crushed material crushed through the primary crushing unit, wherein the primary crushing unit, each opening toward the inlet and the secondary crushing unit 1 Primary housing, the primary jaw plate installed on one side inside the primary housing, is installed in a direction transverse to the inside of the primary housing and the primary aggregate with the primary jaw plate while rotating in place by receiving power And a primary hammer for crushing, wherein the secondary crushing portion includes a secondary housing opened toward the secondary crushing portion and a bottom portion, a secondary jaw plate installed on one side of the secondary housing, and the secondary housing. It is installed in a direction crossing the inside and includes a secondary crushing impeller for crushing the primary crushed material with the secondary jaw plate while rotating in place by receiving power The features.

The present invention is a circulating aggregate production facility generated during the intermediate treatment process of construction waste using a multi-stage crusher for construction waste, the first trommel is a plurality of sorting holes, a plurality of wires of a curved cross section is combined to form a sorting hole Three different particle sizes through the first and second trommel made of a larger diameter than the first trommel and consisting of a second trommel surrounding the first trommel and a connecting member connecting the first and second trommels. Dual screen net trommel for screening aggregates; It is characterized in that it comprises a multi-stage crusher for construction wastes that is continuously crushed over two times by receiving the aggregate of the largest particle size selected by the first trommel of the dual screen net trommel.

According to the multi-stage crusher for construction wastes according to the present invention and the circulating aggregate production facility generated during the intermediate treatment process of construction wastes using the same, the primary crushing unit and the secondary crushing unit are stacked up and down to arrange the primary crushing and the secondary crushing. It is possible to produce aggregates of small size from a large mass of aggregates, so that the space occupancy of the shredder is small and can be transported by trailers, thereby reducing the initial investment cost, and transported directly to the demolition site. Produces aggregate, which can significantly reduce transportation costs.

In addition, the dual screen net trommel and multi-stage crushers can be connected to each other to screen and shred the construction wastes generated at the demolition site to produce high-quality recycled aggregates, thereby eliminating the regional limitations in the construction waste treatment business and reducing costs. can do.

1 is a perspective view of a multi-stage crusher for construction waste according to the present invention.
Figure 2 is a perspective view of a part of the first and second housings are cut out to show the inside of the multi-stage shredder for construction waste according to the present invention.
Figure 3 is a side view of a multi-stage crusher for construction waste according to the present invention.
Figure 4 is a plan view of the installed state of the actuator for adjusting the spacing applied to the multi-stage crusher for construction waste according to the present invention.
Figure 5 is another illustration of the first and second housings applied to the multi-stage shredder for construction waste according to the present invention.
Figure 6 is a side view of the spacer applied between the 1,2 shredding part of the multi-stage shredder for construction waste according to the present invention.
7 is a block diagram of a circulating aggregate production facility generated during the intermediate treatment process of construction waste using a multi-stage crusher for construction waste according to the present invention.
8 is another exemplary diagram of a dual screen net trommel applied to the recycled aggregate production facilities generated during the intermediate treatment process of construction waste using a multi-stage crusher for construction waste according to the present invention.

As shown in Figures 1 to 3, multi-stage shredder (1) for construction waste according to the present invention, by crushing the raw aggregate over the primary and secondary to reduce the particle size and improve the shape of the round, primary The crushing part 100 and the secondary crushing part 200 are disposed up and down to minimize the occupied area.

The primary shredding unit 100 is to crush the raw aggregates to a small particle size, for example, to crush the raw aggregates of 80mm or more to 80mm or less, and the secondary crushing unit 200 shreds and granules the primary crushed material of 80mm or less to 40mm or less In order to improve roundness, that is, the primary crushing unit 100 is intended to crush the raw aggregate of a large particle size, and the secondary crushing unit 200 is smaller than the primary crushing unit 100 The crushing of the crushed material to a smaller particle size is mainly aimed at improving the shape.

The primary crushing unit 100 is composed of the primary housing 110, the primary jaw plate 120 and the primary hammer 130 for primary crushing the raw material introduced into the primary housing 110. .

The primary housing 110 has an opening formed to allow the input of raw aggregate and discharge of the primary crushed material, and has a tubular structure in which the opening is formed in the upper and lower parts according to the characteristics of the present invention.

The primary housing 110 may be a flange and the like in the open portion to be stably coupled to the secondary housing 210 and the hopper to induce the input of the aggregate of the secondary crushing unit 200 to be described later.

The primary housing 110 is equipped with one or more inspection covers 111 to repair the interior without dismantling the device.

The primary housing 110 is provided with, for example, a plate-shaped guide 112 for guiding the primary crushed material that is crushed between the primary hammer 130 and the primary jaw plate 120 to the secondary crusher 200. Can be.

The primary jaw plate 120 is a fixed body fixed to the primary housing 110 to crush the aggregate together with the primary hammer 130, and to support the rotation and pressure of the primary hammer 130, which is a rotating body Allow the aggregate to break up.

The primary jaw plate 120 may have a flat surface or may have a concave-convex shape. If the surface is uneven, when the raw aggregates are crushed between the primary hammer 130 and the primary jaw plate 120 may be greatly pressured by the primary hammer 130 to increase the efficiency of the crushing.

The primary jaw plate 120 will not interfere with the fracture even if the primary jaw plate 120 is fixed so as not to move inside the primary housing 110. However, the elastic member may be damaged by the force applied from the primary hammer 130. (For example, a plurality of coil springs) is preferably installed so as to be elastically movable, and a plurality of coil springs may be installed between the primary housing 110 and the primary jaw plate 120. In this case, since the coil spring primary jaw plate 120 is intended to prevent breakage through elastic movement, the coil spring should have elastic strength that will not interfere with primary crushing. If the rearward movement of the primary jaw plate 120 is too large, primary crushing is difficult and it is difficult to obtain a primary crushed material of a desired particle size.

The primary jaw plate 120 may be installed directly through the first housing 110 or through a separate bracket 121 fixed to the first housing 110 with a bolt or the like.

The angle of the primary jaw plate 120 may perform a function of adjusting the particle size of the primary crushed material and controlling the discharge amount, and thus, the primary jaw plate 120 may be angle-adjusted to the primary housing 110. Can be installed. For example, the primary jaw plate 120 is rotatably connected to the primary housing 110 through the upper end of the primary jaw plate, and adjusts the angle of the primary jaw plate 120 at the rear of the primary jaw plate 120. An angle adjusting means for advancing back and forth as possible is provided. The angle adjusting means may be a hydraulic or pneumatic cylinder, a bolt or the like.

The primary hammer 130 is to crush and crush the raw aggregate while rotating in place in the primary housing 110, the drive means (for example drive motor and power transmission belt), receiving the driving force from the drive means The rotating primary rotating shaft 131, the circumferential portion of the primary rotating shaft 131 includes a bar-shaped hammer 132 detachably coupled along the axial direction.

The primary rotation shaft 131 is disposed in a direction crossing the primary housing 110 along the transverse direction inside the primary housing 110 to be supported by the primary housing 110 through a bearing or the like and connected with the driving means. And rotate.

The hammer 132 is formed in a bar shape so as to uniformly crush all the raw aggregates injected into the primary housing 110, and are generally arranged inside the primary housing 110 along the axial direction of the primary rotation shaft 131. At least one is provided along the axial direction.

Hammer 132 is installed in the circumferential direction in the circumferential direction a plurality of hammer 132, a plurality of may be installed directly on the primary rotation shaft 131, may be installed through a separate connection means have. The separate connecting means for installing the hammer 132 on the primary rotary shaft 131 is coupled to the peripheral portion of the primary rotary shaft 110 at regular intervals through spacers along the axial direction, the groove is formed in the peripheral portion The rim 133 of the rim 133 is fixed to the groove and the hammer 132 may be composed of a hammer fixing plate 134 is fixed with one or more bolts.

That is, the hammer 132 may be composed of a fixing part fixed to the hammer fixing plate 134 and a hammer part which is formed in a larger cross-sectional area than the fixing part and crushes the raw aggregate.

The secondary crushing unit 200 is the secondary housing 210, the secondary jaw plate 220 and the secondary crushing impeller 230 to improve the shape and crushing of the primary crushed material that is introduced into the secondary housing 210 It consists of.

The secondary housing 210 is arranged at the bottom of the primary housing 110 (arranged so that the primary shreds can fall vertically), and the openings are formed at the top and bottom to receive the primary shreds and discharge the second shreds. The tubular structure is connected to the bottom of the primary housing 110 through a bolt or the like and is installed at a predetermined height from the ground through a frame erected on the ground.

The secondary housing 210 is equipped with one or more inspection covers 211 to enable internal repair without removing the device.

The secondary jaw plate 220 generates a crush force against rotation and compression of the secondary crushing impeller 230 so that the secondary crushing is made, the configuration is the same as the primary jaw plate 120, so a detailed description Omit.

The secondary crushing impeller 230 is provided on the circumference of the secondary rotating shaft 231 and the secondary rotating shaft 231 which are rotated by receiving a driving force from the driving means (which may be the same as the driving means of the primary hammer 130). It consists of a plurality of shredding blades 232 to be joined.

The secondary rotation shaft 231 is disposed in a direction crossing the secondary housing 210 along the transverse direction inside the secondary housing 210 to be supported by the secondary housing 210 through a bearing or the like and connected to the driving means. And rotate.

The secondary crushing blade 232 is formed in a ring shape in which a plurality of teeth are formed along the circumferential portion at the circumference thereof and is installed at regular intervals with a spacer or the like interposed along the axial direction in the circumferential portion of the secondary rotation shaft 231.

A plurality of secondary shredding blades 232 are installed so that the teeth are shifted along the axial direction of the secondary rotary shaft 231, when the secondary jaw plate 220 is irregular, the teeth of the secondary jaw plate 220 It is placed in a position proximate to.

The teeth of the secondary shredding blades 232 can tear flammable wastes in the primary shreds, reduce the aggregates in the primary shreds, remove the angled portions, and have curved triangular cross-sections.

The present invention is characterized in that the primary crushing unit 100 and the secondary crushing unit 200 is configured to be able to adjust the particle size of the crushed material, respectively, which is the primary hammer 130 and the secondary crushing impeller 230 and 1, It may be made by adjusting the gap between the secondary jaw plate (120,220).

In the present invention, the spacing is adjusted by changing the positions of the primary hammer 132 and the secondary crushing impeller 232 based on the first and second jaw plates 120 and 220, as shown in FIG. Both ends of the 131 are protruded to the outside of the primary housing 110, and the actuator for spacing 140 is connected to the protruding portion of the primary rotating shaft 131.

The gap adjustment actuator 140 is capable of advancing the primary rotation shaft 131 forward and backward, and thus may include a hydraulic cylinder.

The actuator 140 for adjusting the gap is supported by the primary housing 110 and connected to the sliding block 141 into which the primary rotation shaft 131 is inserted to advance the primary rotation shaft through the sliding block 141. At this time, an elastic member (coil spring, etc.) for elastically supporting the primary rotation shaft 131 may be installed on the opposite side of the gap adjusting actuator 140.

The secondary crushing unit 200 may be spaced apart so that the primary crushed material crushed by the primary crushing unit 100 can be crushed to a smaller size.

The multi-stage shredder for construction waste of the present invention configured as described above has a structure in which the first and second shredding parts 100 and 200 are stacked up and down, and the second and second shredding parts 200 disposed on the bottom of the first and second shredding parts 100 and 200. In the repair of the primary crushing unit 100 can be repaired by separating from the secondary crushing unit 200, but since the separation and reassembly of the primary crushing unit 100 is cumbersome, as shown in FIG. The housings 110 and 210 may be connected to each other to face each other through the flange 150 so that the primary housing 110 may open and close the secondary housing 210.

In addition, the primary housing 110 and the secondary housing 210 may not be configured as one each but divided into two or more, and one side facing each other may be connected to be opened and closed through the flange. 5 is an exemplary diagram in which the primary housing 110 is divided into three (110-1, 110-2, 110-3) and the secondary housing 210 is divided into two (210-1, 210-2).

The dividing structure of the primary and secondary housings 110 and 210 is not limited to those shown in the drawings, and may be variously divided into structures that can conveniently repair the components of the primary and secondary crushing units 100 and 200.

According to the present invention, since the primary crushed material crushed by the primary crushed portion 100 is supplied to the secondary crushed portion 200 immediately after, the primary crushed and the secondary crushed are continuously made. The workload can be large and congestion can occur accordingly.

In order to solve this problem, as illustrated in FIG. 6, the spacer 300 is interposed between the primary crushing unit 100 and the secondary crushing unit 200. The spacer 300 is a tubular structure that is open toward the primary and secondary housings 110 and 210, respectively, and is detachably fixed between the primary and secondary housings 110 and 210 by bolts and the like. By stabilizing the time that the primary crushed material is crushed by the secondary crushing unit 200 is lengthened to prevent stagnation of the primary crushed material.

Although only one spacer 300 is illustrated in the drawing, two or more spacers 300 may be used depending on the primary and secondary crushing.

The multi-stage crusher 1 according to the present invention can be mounted or connected to a trailer, etc., which can be movable and fixed, and in the case of a mobile, it is moved and installed to a demolition site to be used at a demolition site, thereby reducing the transportation cost of aggregate and providing the aggregate production facilities. It can reduce the difficulty of securing the area.

The primary crushing unit 100 and the secondary crushing unit 200 may be installed with the up and down positions changed.

The action of the multi-stage shredder for construction waste according to the present invention is as follows.

1. Primary fracturing.

Before the crushing, the gap between the primary hammer 130 and the primary jaw plate 120 and the secondary crushing impeller 230 and the secondary jaw plate 220 are set, which is set to 1 through the spacing actuator 140. It can be set by advancing the primary hammer 130 forward and backward and forwarding the secondary crushing impeller 230.

Raw aggregates (where raw aggregates are introduced into the crusher of the present invention) are supplied to the primary crushing unit 100, and a hopper may be installed at the inlet (upper opening) of the primary housing 110. The raw aggregate is introduced into the primary housing 110 through the hopper.

The primary hammer 130 of the primary crushing part 100 is rotated through the driving means, and the raw aggregate is injected between the primary hammer 130 and the primary jaw plate 120.

The hammer 132 of the primary hammer 130 is crushed into a small size by hitting and compressing the raw aggregates interposed with the primary jaw plate 120, at this time, the primary jaw plate 120 does not push the raw aggregate By supporting so that the impact energy of the hammer 132 is transmitted to the raw aggregates without loss, the raw aggregates are crushed. Of course, when the primary jaw plate 120 is installed through the elastic member, the primary jaw plate 120 may be pushed to the rear, but since the primary jaw plate 120 is not degraded, the crushing is efficiently performed.

Primary shredded by the hammer 132 in a small size is dropped to the secondary shredding unit 200 through the primary hammer 130 and the primary jaw plate 120.

The primary hammer 130 is composed of a plurality of hammers 132, and thus, the primary hammer 130 is primary crushing all the raw aggregate input while rotating.

2. Secondary fracturing.

Primary crushed material that is primarily crushed through the primary crushed portion 100 falls freely inside the secondary housing 210 of the secondary crushed portion 200, and the primary crushed material is moved to another place through the guide 112. It is guided between the secondary crushing impeller 230 and the secondary jaw plate 220 without being separated.

The crushing blade 232 of the secondary crushing impeller 230 rotates and crushes the primary crushed material to a smaller size by hitting and tearing the primary crushed material supported on the secondary jaw plate 220 and at an angled portion. To improve the roundness.

The plurality of shredding blades 232 arranged along the axial direction of the secondary rotation shaft 231 are arranged so that their teeth are shifted so as to shred the primary shredding material in a continuous operation.

Secondary crushed material that is secondary crushed through the secondary crushing unit 200 is discharged to the outside through the outlet (lower opening) of the secondary housing 210.

The secondary crushed material crushed by the secondary crushing unit 200 may be transferred to another place, for example, a transport vehicle, a loading box, or the like through a transfer conveyor. On the other hand, when it is necessary to sort the secondary crushed material with different particle size, the second crushed material may be sorted by installing a sorting device (screen net, etc.) at the bottom of the outlet of the secondary crushed portion 200.

The recycled aggregate production facility generated during the intermediate treatment process of construction waste using the multi-stage crusher for construction wastes according to the present invention, as shown in FIG. 7, is composed of a double screen net trommel (2) and a multi-stage crusher (1). . That is, only the raw aggregates that need to be shredded by the multi-stage shredder 1 through the dual screen net trommel 2 are selected and supplied to the multi-stage shredder 1 to reduce the power loss, improve the shredding efficiency, and improve the quality of the recycled aggregate. can do.

As shown in FIGS. 7 and 8, the dual screen net trommel 2 is formed in a double structure by the first trommel 10 and the second trommel 20 having a larger diameter than the first trommel 10. Aggregates are screened into three different granularities, among which aggregates that require crushing (the aggregate of the largest grain size) are supplied to the multi-stage crusher (1).

The first trommel 10 may be in the form of a plate and a plurality of selection holes are perforated, and the second trommel 20 may have a structure in which a plurality of wires are connected to a network to form the selection holes. In this case, the wire may be made of stainless steel (SUS), the cross-section is preferably curved, such as circular so that construction waste can pass smoothly.

The first trommel 10 and the second trommel 20 are each formed of a plurality of unit trommel is combined to repair / replace only the damaged part in case of damage caused by construction waste. Here, the first trommel 10 is formed longer than the second trommel 20 so that the waste remaining in the first trommel 10 and the second trommel 20 is discharged without mixing. Do it differently.

The unit trommels constituting the first and second trommels 10 and 20 may have flanges formed on both sides thereof, for example, and may be coupled by fastening fasteners such as bolts to the flanges.

The first and second trommels 10 and 20 are connected to each other through the connecting member 30. The connecting member 30 is formed in a size and shape that does not interfere with the discharge of waste, disposed between the first and second trommels 10 and 20 so that both inner and outer sides thereof are fastened through fasteners, respectively. In this case, the fastener is preferably a fastener for coupling the unit trommel of the first and second trommels 10 and 20 described above. That is, the connection member 30 is interposed between the flanges of the unit trommels coupled to each other as a separate unit is fastened by a fastener. The connection member 30 may be a single piece or integrally formed with the first unit trommel or the second unit trommel.

The sorting holes of the first and second trommels 10 and 20 can be changed in various ways, such as changing diameters from the inlet to the outlet. However, the sorting holes of the first trommel 10 are the second trommels 20 It is formed larger than the sorting hole of).

Stirring screw 11 is formed on the inner circumferential surface of the first trommel 10 to increase the screening efficiency by uniformly mixing and dispersing the aggregate injected into the first trommel 10.

The dual screen net trommel (2) is a drive motor capable of forward / reverse rotation, and a belt for rotating the dual screen net trommel (2) by transmitting the rotational force of the drive motor to the dual screen net trommel (2). It may be made of a transmission means and a control means for controlling the drive of the drive motor.

On the other hand, additionally, neutralizing agent spray means 40, 50 for controlling the alkalinity of the aggregate by neutralizing the aggregate to the aggregate may be included.

Neutral spray means (40, 50) is a neutral agent tank, a pump for pumping the neutral agent stored in the neutral agent tank, the neutral agent arranged along the longitudinal direction of the dual screen net trommel (2) and pumped from the pump It is composed of a plurality of spray nozzles for transporting the transport pipe, disposed at regular intervals in the transport pipe and spraying the neutral agent transported along the transport pipe to the aggregate inside the dual screen net trommel (2).

Neutral spray means 40 and 50 are preferably installed inside the first trommel 10 and the outside of the second trommel 20, respectively.

On the inlet side of the first trommel 10 is formed a non-hole 12 without a selection hole. The non-perforated part 12 is more effective when the neutralizing agent spray means 40 and 50 are applied, and may be neutralized by spraying the neutralizing agent before the input waste is sorted.

Dual screen net trommel (2) can be mounted or connected to a trailer, etc., both mobile and stationary, which can be moved. It can reduce the difficulty of securing. Here, the multi-stage crusher 1 and the dual screen net trommel 2 can be carried in one trailer or independently.

The multi-stage crusher 1 has already been described in detail. The dual screen net trommel 2 and the multi-stage crusher 1 are connected through a transfer conveyor 3, etc., and the transfer conveyor 3 is the first trommel 10. It is installed over the inlet of the primary crushing unit 100 of the multi-stage crusher (1) at the bottom of the outlet end of the) to transfer the aggregate.

The operation of the circulating aggregate production facility generated during the intermediate treatment of construction waste using the multi-stage crusher for construction waste according to the present invention is as follows.

1. Aggregate screening.

The multi-stage crusher (1) and the dual screen net trommel (2) is moved to the demolition site and set, and the waste (aggregate and foreign material mixture) of various particle sizes generated at the demolition site is selected and crushed.

First, the waste mixed with various kinds and various sizes is introduced into the first trommel 10 of the dual screen net trommel 2.

The dual screen net trommel (2) sorts into smaller than the sorting hole and larger than the sorting hole while dispersing and transporting the waste through rotation. That is, the smaller than the screening hole of the first trommel 10 is passed to the second trommel 20 through the screening hole, the second trommel 20 flows into the second trommel 20 It is selected by two particle sizes through the selection hole of.

2. Multistage shredding.

Aggregate that did not pass through the selection hole of the first trommel (10) is supplied to the multi-stage crusher (1) through the conveying conveyor (3) primary crushing and secondary crushing unit 200 by the primary crushing unit (100) After secondary crushing by), it is produced as recycled aggregate.

1: multistage crusher,
100: primary crushing unit, 110: primary housing
120: primary jaw plate, 130: primary hammer
131: primary axis of rotation, 132: hammer
140: actuator for adjusting the gap,
200: secondary crushing unit,
210: secondary housing, 220: secondary jaw plate
230: 2nd crushing impeller, 231: 2nd rotating shaft
232: shredding blade,
2: dual screen net trommel,
10: first trommel, 20: second trommel

Claims (9)

Primary crushing unit 100 for primary crushing the raw aggregate supplied;
It is disposed at the bottom of the primary crushing unit and includes a secondary crushing unit 200 for crushing the primary crushed material crushed through the primary crushing unit, secondary,
The primary crushing unit, the primary housing 110 which is open toward the inlet and the secondary crushing unit, respectively, the primary jaw plate 120 is installed on one side of the inside of the primary housing, the primary housing to cross It is installed in a direction and includes a primary hammer 130 to crush the raw material with the primary jaw plate while rotating in place by receiving power,
The secondary crushing unit, the secondary housing 210 which is open toward the secondary crushing unit and the bottom, respectively, the secondary jaw plate 220 is installed on one side of the inside of the secondary housing, traverse the inside of the secondary housing And a secondary crushing impeller 230 for crushing the primary crushed matter with the secondary jaw plate while rotating in place while receiving power.
The primary hammer includes a plurality of bar-shaped hammer 132 that is detachably coupled at regular intervals along the circumferential direction to the primary rotation shaft 131 rotates by receiving a driving force, the circumferential direction ,
The secondary crushing impeller has a plurality of teeth formed in the circumferential direction of the secondary rotary shaft 231, the circumferential portion is rotated by receiving the driving force and a plurality of crushing blades are installed in the circumferential direction of the secondary rotary shaft ( Multi-stage shredder for construction waste comprising a. The method of claim 1, wherein the primary hammer and the secondary crushing impeller and the primary and secondary are respectively installed on the outside of the primary and secondary housings and the primary and secondary rotary shafts forward and backward with respect to the primary and secondary jaw plates And a spacing actuator for adjusting spacing between jaw plates. The multi-stage shredder for construction waste according to claim 1 or 2, wherein one side of the first and second housings is connected to each other through a flange to open and close the secondary housing. The multi-stage shredder for construction waste according to claim 3, wherein the first and second housings are divided into two or more, and one side of the first and second housings is connected to each other so as to be opened and closed through a flange. The multi-stage shredder for construction waste according to claim 1 or 2, wherein the first and second jaw plates are installed at one side of the first and second housings in an adjustable angle. The apparatus of claim 3, further comprising one or more spacers each opened toward the primary and secondary housings and interposed between the primary and secondary housings to adjust a supply amount of primary crushed materials crushed by the primary crushing unit. Multi-stage shredder for construction waste, characterized in that. The multi-stage crusher for construction waste according to claim 1, wherein the primary crushing unit and the secondary crushing unit are installed with their upper and lower positions interchanged. The first trommel (10) having a plurality of selection holes perforated, a plurality of wires having a curved cross section is combined to form a selection hole, the second trommel (20) surrounding the first trommel larger than the first trommel (20) And a double screen net trommel (2) for screening aggregates having three different particle sizes through the first and second trommels and connecting members 30 connecting the first and second trommels;
It includes a multi-stage crusher for construction waste according to claim 1 or 2 which receives the aggregate of the largest particle size selected by the first trommel of the dual screen net trommel (2) and crushed continuously over two times. Circular aggregate production facility generated during the intermediate treatment process of construction waste using a multi-stage crusher for construction waste. The multi-stage crusher for construction wastes according to claim 8, wherein neutralizing agent spraying means is installed inside and outside the dual screen net trommel and sprays neutralizing agent inside the first and second trommel. Recycled aggregate production facility generated during intermediate treatment of construction waste.

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