KR100980080B1 - Double screen trommel enabling neutralization of crushed recycling aggregate - Google Patents

Abstract

PURPOSE: A double screen trommel enabling neutralization of a crushed recycling aggregate is provided to increase distinguish efficiency since the aggregate dose not block a selection hole. CONSTITUTION: A double screen trommel enabling neutralization of crushed recycling aggregate comprises: a first trommel(110) in which a plurality of sorters(111) is punched; a second trommel(120) having bigger diameter than the first trommel and protecting the first trammel; a connection member connecting the first trammel to the second trammel; a neutralizing material tank; a pump pressing the neutralizing material; a transfer pipe; and a spray unit.

Description

DOUBLE SCREEN TROMMEL ENABLING NEUTRALIZATION OF CRUSHED RECYCLING AGGREGATE}

The present invention relates to trommel for selecting circulating aggregates by particle size, and more particularly, crushed circulating aggregate neutralization which can neutralize simultaneously with selecting alkaline aggregates as first to third aggregates of different particle sizes. Possible dual screen net Trommel.

Types of waste that are inseparable due to working conditions such as waste cones, waste ascons, waste wood, rebars, earth and sand and other redevelopment sites at construction sites, namely construction wastes, vinyl waste, and household wastes, are generated annually. It is reaching 40 million tons. In order to recycle these wastes, the wastewater must be sorted by pretreatment, but more than 90% of the wastes are filled. Recycling performance in high value-added areas that are only used for landfilling is very poor.

Recently, technology for screening construction waste has been proposed in recognition of the seriousness of resource recycling and environmental pollution.

Construction waste sorting apparatus according to the prior art, for example, consists of a hopper to which the waste is injected and a sorting device for sorting the waste put into the hopper. The sorting device has a plurality of sorting holes, and there is a trommel for sorting the waste put into the size by rotating, a magnet for sorting the iron out of the waste by magnetic force, a blower for sorting the waste by the wind.

However, the construction waste sorting apparatus according to the prior art has the following problems.

Conventional trommel is a single structure formed in a circular plate formed by a plurality of screening holes, and sorts the construction waste according to the size of the screening hole, because it is a single structure waste remains in two kinds (ie, inside the trommel) Waste of size and waste of size that is discharged to the outside of Trommel).

Since trommels are thin plates, they can be damaged by heavy construction waste and block the sorting holes, and the spacing between the sorting holes should be large enough to prevent the trommel from tearing. There is a disadvantage that construction waste is stuck and clogged, there is a disadvantage that the work is cumbersome and does not solve the clogging cleanly as the worker relieves the retinal by applying a flame or knocking with a hammer by hand.

In addition, since the conventional hopper has a planar structure, the construction waste introduced into the structure is stagnant in the hopper is provided with a separate pusher for supplying the construction waste to the post-process or has a disadvantage that the operator manually supplies.

In addition, depending on the characteristics of cement, which is the main component of waste concrete (especially calcium hydroxide produced by the reaction of calcium oxide and water), the pH has strong alkalinity of more than 10. This raises a problem that may cause environmental pollution or adversely affect the ecosystem.

In fact, when the pH is more than 10, it is known that the fish can not live and die.In the case of strong alkaline circulating aggregates, the alkali aggregate reaction may occur due to the excessive amount of alkali when used as concrete aggregates. This can cause performance degradation such as pop-outs.

Therefore, a technique for neutralizing aggregate is proposed, but there is a problem in that excessive initial investment costs are required because the aggregate is neutralized through separate equipment and processes.

The present invention is to solve the problems as described above, to select the aggregates of the first to third aggregates of different particle size, minimize the blockage when screening the aggregates, neutralizing the alkaline aggregates at the same time as the aggregates selected The purpose is to provide a dual screen net trommel capable of crushing circulating aggregate neutralization.

The dual screen net trommel capable of neutralizing the pulverized recycled aggregate according to the present invention for achieving the above object, the first trommel perforated a plurality of selective holes, a plurality of wires of a curved cross section in the form of a lattice It is coupled to form a selection hole is larger than the diameter of the first trommel, the second trommel surrounding the first trommel, connecting members connecting the first and second trommel, neutral tank, stored in the neutral tank A pump for pumping a neutral agent, a transport pipe for transporting the neutral agent transported by the pump, and a neutralizer spraying means for spraying the neutral agent transported along the transport pipe to the aggregate inside the first and second trommels. Thus, the first to third aggregates are selected by neutralizing the first to third aggregates through a neutral agent while selecting the first to third aggregates having different particle sizes through the first and second trommels.

According to the dual screen net trommel capable of neutralizing crushed circulating aggregates according to the present invention, the aggregates are selected into three aggregates having different particle sizes by the first and second trommels having a double structure, and have a circular to curved cross section. As the aggregate does not block the sorting hole by the wire of, the sorting efficiency can be improved, and the alkaline process is neutralized by spraying the neutralizer inside the trommel during the sorting of the aggregate so that the separate process for neutralizing the aggregate is eliminated. Initial investment costs can be reduced and aggregate production increased per unit time.

1 is a perspective view of the main portion of the dual screen net trommel capable of neutralizing the crushed circulating aggregate according to Example 1 of the present invention.
Figure 2 is a side view of the installation state of the dual screen net trommel capable of neutralizing the crushed circulating aggregate according to the first embodiment of the present invention.
Figure 3 is a side view of a dual screen net trommel capable of neutralizing crushed circulating aggregate according to Example 1 of the present invention.
Figure 4 is a front view of the dual screen net trommel capable of neutralizing the crushed circulating aggregate according to Example 1 of the present invention.
Figure 5 is a side view of a dual screen net trommel capable of neutralizing crushed circulating aggregate according to Example 2 of the present invention.
Figure 6 is a perspective view of the main parts of the dual screen net trommel capable of neutralizing the crushed circulating aggregate according to the second embodiment of the present invention.
Figure 7 is a side view of a dual screen net trommel capable of neutralizing crushed recycled aggregate according to Example 3 of the present invention.

≪ Example 1 >

As shown in Figures 1 to 4, the dual screen net trommel 100 capable of neutralizing the crushed circulating aggregate according to this embodiment is made of a dual structure in order to efficiently select the construction waste, such as a motor It is rotated by the drive means.

The trommel 100 has a dual structure in which the first trommel 110 having a smaller diameter and the second trommel 120 having a larger diameter than the first trommel 110 surround the first trommel 110. Is done.

The first trommel 110 is a plate and may have a shape in which a plurality of selection holes 111 are perforated, and the second trommel 120 has a plurality of wires 122 having a network structure so that the selection holes 121 are formed. It may be in a combined form. At this time, the wire 122 is a stainless steel (SUS) material of a diameter of 7 ~ 12mm, preferably 12mm, construction waste can pass smoothly without being attached to the wire 122 of the second trommel 120. The cross section is preferably curved, for example circular.

The first trommel 110 and the second trommel 120 are formed by combining a plurality of unit trommels so that only the damaged part can be repaired / replaced in case of damage caused by construction waste. Here, the first trommel 110 is formed longer than the second trommel 120 so that the waste remaining in the first trommel 110 and the second trommel 120 is discharged without mixing. Do it differently.

The unit trommels constituting the first and second trommels 110 may be coupled to each other by, for example, flanges formed at both sides, and fasteners such as bolts are fastened to the flanges.

The first and second trommels 110 and 120 are connected to each other through the connecting member 130. The connection member 130 is made of a size and shape that does not interfere with the discharge of waste is disposed between the first and second trommel (110, 120) is fastened both inside and outside of each through the fastener. In this case, the fastener is preferably a fastener for coupling the unit trommel of the first and second trommels 110 and 120 described above. That is, the connection member 130 is interposed between the flanges of the unit trommels coupled to each other as a separate unit is fastened by a fastener. The connecting member 130 may be a single piece or integrally formed with the first unit trommel or the second unit trommel.

Meanwhile, the diameter of the first selection hole 111 and the second selection hole 121 may vary from the inlet side to the outlet side, respectively. For example, the first selection hole 111 may have a larger diameter and a smaller diameter. The second selection hole 121 may have a shape in which the diameter thereof becomes small. At this time, the first selection hole 111 is preferably larger than the diameter of the second selection hole 121.

In addition, the diameter of each of the sorting holes (111, 121) may be gradually increased or reduced in size, and all the sorting holes (111,121) in the first, second unit trommel made of the same diameter for each of the first and second unit trommel The diameters of the selection holes 111 and 121 may vary.

Trommel 100 of the present invention is driven through the drive means. The driving means is a drive motor capable of forward / reverse rotation, power transmission means such as a belt for rotating the trommel 100 by transmitting the rotational force of the drive motor to the trommel 100 and controlling the driving of the drive motor. Control means.

Inside the first trommel 110, the aggregates introduced into the first trommel 110 are evenly mixed so that the neutral agent (liquid) sprayed by the neutralizer spraying means described later is uniformly applied to the surfaces of all the aggregates. Stirring screw 112 is formed.

Stirring screw 112 is coupled to the inner circumferential surface of the first trommel 110 by a fastening or welding, such as bolts, and rotates together with the first trommel 110 to reverse the aggregate inside the first trommel 110 Stir.

A stirring screw is formed on an inner circumferential surface of the second trommel 120 to stir the aggregate inside the second trommel 120.

This embodiment includes neutralizing agent spray means for controlling the alkalinity of the aggregate to neutral by spraying the neutralizing agent to the aggregate.

The neutralizer spraying means 200 is a neutral tank, a pump for pumping the neutral agent stored in the neutral tank, the conveying the neutral agent is arranged along the longitudinal direction of the trommel 100 and conveyed from the pump The pipe 210 is disposed at regular intervals in the transfer pipe 200 and consists of a plurality of spray nozzles 220 for spraying the neutral agent transferred along the transfer pipe 210 to the aggregate inside the trommel 100. .

The transfer pipe 210 is disposed at a plurality of places at regular intervals along the circumferential direction of the trommel 100 so that the neutral agent is uniformly sprayed on all aggregates in the trommel 100.

Reference numeral 400 in the figure is a sealed case to be supplied to the trommel 100 without the neutral agent scattered.

The action of the dual screen net trommel capable of neutralizing the crushed circulating aggregate according to this embodiment is as follows.

The aggregate is supplied to the inside of the first trommel 110, which is an inner cylinder, by a transfer conveyor or the like.

Among the aggregates introduced into the first trommel 110, the aggregates of the second and third aggregates having a particle size smaller than the first selection hole 111 (the aggregate having a particle size larger than the first selection hole 111) are selected from the first aggregate and the second selection. Aggregate having a particle size larger than the ball 121 is referred to as the second aggregate, aggregate having a particle size smaller than the second sorting hole 121 is called the third aggregate, and passes through the first screening hole 111 and the first screening hole (111). The first aggregate having a particle size larger than) remains inside the first trommel 110.

The third aggregate having a particle size smaller than the second sorting hole 121 of the second and third aggregates passing through the first sorting hole 111 is discharged through the second sorting hole 121 and the second aggregate is the second aggregate. Rommel 120 will remain inside.

As such, the spray nozzle 220 sprays the neutral agent inside the second and first trommels 120 and 110 from the outside of the second trommel 120 while being selected as the first to third aggregates.

Some of the neutralizing agent is sprayed on the surface of the second and third aggregates inside the second trommel 120 to neutralize the second and third aggregates, and the rest of the neutralizing agent to the first selection hole 111 of the first trommel 110. Pass through and sprayed on the surface of the first to third aggregate in the first trommel 110 to neutralize the first to third aggregate. That is, the second and third aggregates are neutralized in the second trommel 120 after being neutralized in the first trommel 110.

During the rotation of the first trommel 110, the stirring screw 112 rotates together with the first trommel 110 to stir the first to third aggregates of the neutral agent flowing into the first trommel 110 Even if the amount is small, the neutral agent may be spray applied uniformly to the first to the third aggregate.

When the second trommel 120 is made of a wire, since the wire has a circular cross section, the neutral agent falls on the inside of the second trommel 120 on the outer circumferential surface of the wire, thereby minimizing the loss of the neutral agent.

Since it is known that the alkaline first to third aggregates are neutralized by the neutralizing agent, the chemical formula and the like will not be described.

The first to third aggregates selected by the first and second trommels 110 and 120 are transferred and loaded through a transfer conveyor or the like, respectively.

<Example 2>

As shown in FIG. 5 and FIG. 6, the dual screen net trommel 100 capable of neutralizing the pulverized circulating aggregate according to the present embodiment includes an interior of the first trommel 110 and a second trommel 120. The first and second spray means (200,300) is configured to be able to spray the neutral agent at the same time from the outside of the. That is, compared with Example 1, the second spray means for spraying the neutral agent inside the first trommel 110 (the spray means of Example 1 is called the first spray means 200) is added.

The second spray means 300 may be configured in the same manner as the first spray means 200 or may share a neutral tank and a pump.

The transfer pipe 310 of the second spraying means 300 is fixedly installed at a position that will not interfere with the input of the aggregate.

The second spraying means 300 is that the first to the third aggregate is selected after all the input to the first trommel 110 is selected in that a large amount of aggregate is concentrated in the first trommel 110, The neutralizer by the first spraying means 200 is sprayed together with the neutralizer by the second spraying means 300 inside the 1 trommel 110.

In addition, in order to more effectively neutralize the first to third aggregates, an unopened portion 113 having no first selection hole 111 is formed at the inlet side of the first trommel 110.

Since the no-hole part 113 does not have a first selection hole, the first to third aggregates are not selected, but only neutralization is performed by a neutral agent. That is, the large neutralization of the first to third aggregates is made while passing through the non-weaving portion 113, and then neutralization is performed at the same time as the selection.

Therefore, according to the present embodiment, the first to third aggregates injected into the first trommel 110 are applied with a neutral agent sprayed from the second spraying means 300 to the surface without passing through the non-processing portion 113 and sorting process. It is neutralized, and is selected by the particle size while passing through the first hole (111) through the non-hole 113.

The first aggregate remaining inside the first trommel 110 is neutralized by a neutral agent sprayed from the second spraying means 300 while being transported along the first trommel 110, and the second trommel 120 The second and third aggregates selected in are neutralized by the neutralizer sprayed from the first spraying means (200). Of course, some of the neutralizing agent sprayed from the second spraying means 300 is introduced into the second trommel 120 to neutralize the second and third aggregates.

<Example 3>

As shown in FIG. 7, the dual screen net trommel 100 capable of neutralizing the pulverized circulating aggregate according to the present embodiment may include first to third aggregates in the transfer pipe 310 of the second spraying means 300. A stirring blade 330 to stir is included so that the neutral agent is uniformly applied to the first to third aggregates while stirring the first to third aggregates.

The stirring blade 330 is fixed to the inside of the first trommel 110 together with the transfer pipe 310, but the first to third aggregates are stirred by the rotation of the first trommel (110).

The stirring blade 330 is made of a length that does not interfere with the stirring screw 112 when the stirring screw 112 is applied to the inner circumferential surface of the first trommel 110, the spray nozzle 320 is the transfer pipe 310 as well In addition, the stirring blade 330 may be installed to increase the coating rate of the neutral agent with stirring. That is, the stirring blade 330 is a hollow portion in communication with the transfer pipe 310 is formed.

110: first trommel, 111: first selection
112: stirring screw, 113: no study
120: second trommel, 121: second selection
122: wire, 200, 300: spraying means
210, 310: Transfer pipe, 220,320: Spray nozzle

Claims (6)

A first trommel 110 in which a plurality of selection holes 111 are drilled;
A second trommel 120 having a plurality of wires 122 having a curved cross section to form a sorting hole 121 and having a larger diameter than the first trommel and surrounding the first trommel;
A connection member 130 connecting the first and second trommels;
A neutral tank, a pump for pumping the neutral agent stored in the neutral tank, a transfer pipe for transporting the neutral agent is pumped by the pump, the neutral agent transported along the transport pipe inside the first and second trommel It includes; neutralizing spray means for spraying on the aggregate,
The neutralizing agent spraying means, the first neutralizing agent spraying means that the transfer pipe is installed at a predetermined interval along the circumferential direction of the second trommel outside the second trommel, the transfer pipe of the first trommel It consists of a second neutralizer spraying means installed inside,
On the inlet side of the first trommel is formed a non-hole 113 with no selection holes so that the neutral agent of the second neutral agent spraying means is applied to the aggregate put into the first trommel and is not selected, the first and second A dual screen net trommel capable of neutralizing crushed circulating aggregates, characterized in that the first to third aggregates are neutralized through a neutralizer while the first to third aggregates having different particle sizes are selected through rommels. delete delete delete The method of claim 1, wherein the second neutralizer spraying means is crushed, characterized in that it comprises a stirring blade 330 formed radially in the circumference of the transfer pipe to agitate the aggregates in the interior of the first trommel Dual screen net trommel capable of neutralizing recycled aggregates. The pulverized circulating aggregate neutralizing dual screen net trommel according to claim 5, wherein the stirring vane is hollow in communication with the conveying tube and is equipped with at least one spray nozzle for spraying a neutral agent.

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