KR20040028023A - a device for selection and crushing/fine crush of wastes construction - Google Patents

Abstract

PURPOSE: Provided is a device for crushing/pulverizing and screening constructional wastes, which prevents the dusts generated by treating the wastes from flying into atmosphere, and to produce a high-quality aggregate like a natural aggregate. CONSTITUTION: The device comprises: a first crushing part(100) equipped with a hopper(110) for introducing constructional wastes, and a crude crusher, a screen(130) and a cone crusher(150) disposed successively to crush the raw materials into a predetermined particle size; a second crushing part(200) equipped with a sand mill(210) to crush and pulverize the raw materials having at least the predetermined particle size obtained by passing the raw materials introduced from the first crushing part(100) through a screen; and a raw material screening and separating part(300) equipped with a screen and a conveyor(310) for discharging the raw materials having at most the predetermined particle size and a fine-particle recovery member(330) connected to the conveyor(310) to settle and recover fine particles.

Description

{A device for selection and crushing / fine crush of wastes construction}

The present invention relates to a crushing / crushing and sorting device of construction waste, and more specifically, the first and second crushing unit for crushing the raw material to the grain size, and includes a raw material separation separator for separating and sorting the crushed particles according to the usage The present invention relates to a crushing / crushing and sorting device for construction wastes, which enables to sort and recycle high-quality aggregates and sand and fines from building wastes.

In general, construction wastes are caused by aging and reconstruction of civil engineering or buildings, deterioration of buildings, etc., and construction wastes generated at the time of dismantling of structures include foreign substances in natural soils and the like.

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

The treatment device for construction waste treatment and extraction and input aggregate for recycling such waste is disclosed in Utility Model Registration No. 276764.

That is, the configuration is, as shown in Figure 1, a hopper equipped with a feeder so that each of the recycled aggregate or the collected construction waste that has undergone the crushing process can be put;

A vibrating sorting means connected to the hopper and the conveyor belt and sorting the metal included in the waste and aggregates into a predetermined size;

Aggregate sorted by more than 25mm in the sorting means is discharged to the conveyor, the aggregate less than 5mm is made of a configuration comprising a classifier is installed to enable sand discharge.

However, the processing equipment for the construction waste treatment and extraction and input aggregate as described above, is a device for sorting only sand below a certain granularity, the work process is increased in an iterative process to maintain the particle size, attached to the aggregate It is difficult to completely remove the cement component has a problem that the regeneration efficiency is lowered.

An object of the present invention for solving the above problems is to minimize environmental pollution by minimizing the scattering of dust generated in the process of treating waste concrete, waste ascon, construction waste materials, construction waste, mixed waste, etc. Prevent it.

In addition, to completely separate the foreign matter mixed in the aggregate to prevent the strength degradation caused by the recycling of the aggregate, and to sort the aggregate, sand and fine powder having various particle size among the waste building materials by one process, natural It is to provide a crushing / grinding and sorting device of construction waste to obtain a good aggregate close to the aggregate.

1 is a flow chart of a processing apparatus for conventional construction waste treatment, extraction and input aggregate.

Figure 2 is a schematic diagram showing a construction waste wave / crushing and sorting apparatus according to the present invention.

Figure 3 is a schematic diagram showing the gravity separation means of the construction waste wave / crushing and sorting apparatus according to the present invention.

4 is a schematic view showing a screen of construction waste wave / grinding and sorting apparatus according to the present invention;

<Explanation of symbols for the main parts of the drawings>

110 Hopper 120 Feeder

140 Jaw crusher 150 ...

210 Sand Sand 230 Screen

320 Conveyor 330a Precipitator

330c ... Dehydration Dryer

In order to achieve the above object, the present invention, the primary crushing unit is provided with a jaw crusher and a cone crusher continuously in the process to primary grinding the raw material;

Secondary crushing unit is separated from the raw material supplied from the primary crushing unit by a foreign matter separating means, and the sand mill is installed to crush it; And,

Provided is a crushing / crushing and sorting device for construction waste comprising a raw material sorting separator having a plurality of screens and a conveyor and a fine collection means installed to classify the raw materials passed through the secondary crushing unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention, as shown in Figures 2 to 4, is composed of the first and second shredding unit 100, 200 for crushing the supplied raw material and the raw material selection separation unit 300 for selectively separating the crushed raw material .

A hopper 110 into which construction waste (construction waste in a state in which foreign matters are mixed with waste concrete, etc.) is introduced as a main raw material, and a conveyor 120 is provided.

The jaw crusher 140 is installed on one side of the conveyor 120 to crush the input raw material to a size of 200 mm or less and the crusher 150 to be crushed to a size of 25 mm or less by being sequentially connected to the process line. Is installed.

In addition, the screen 130 may be further connected on the process line of the jaw crusher 140 to allow the selection of foreign matter by hand.

On one side of the screen 130, a magnetic separator 130a for separating the metal is installed.

In addition, the screen 130 is installed so that one or more individual screens each having different through holes 130b are stacked in multiple stages, and each screen is a vibrator 130c that vibrates and rotates and a high pressure spray nozzle 130d. This connection is installed.

In addition, a gravity separating means 170 is installed at the rear of the jaw crusher 140, and the gravity separating means 170 includes a case 170a, an exhaust conveyor 170b, an exhaust fan 170c, and a screen 170c. Is done.

In the secondary crushing unit 200 for crushing the raw material introduced by the primary crushing unit 100, a sand mill 210 is installed, and the raw material discharged through the sand mill 210 is a magnetic separator. Screening once again by screen with 230a.

In addition, the screen 230 is installed so that one or more individual screens having different through holes 230b are stacked in multiple stages, and each screen includes a vibrator 230c and a high pressure water spray nozzle 230d that vibrate and rotate. Connection is installed.

Raw material sorting separator 300 for classifying the raw material passed through the secondary crushing unit 200, the conveyor 310 is connected to each screen to be stacked and the conveyor 320 is supplied with the fine powder discharged from the screen; Differential recovery means 330 is provided to settle and recover the fines.

The differential recovery means 330 is composed of a multi-stage settling tank 330a, and the water recovered in the last settling tank is dewatered having a pump 330b and a porous screen 330c-1 connected to each spray nozzle. It is made as a bath 330c.

Referring to the operation of the present invention made of the above configuration as follows.

2 to 4, the construction waste of about 600 mm input to the hopper 110 is supplied to the crusher to crush the construction waste through the feeder 120, the crusher is sequentially mounted in a continuous process line It is crushed while passing through the jaw crusher 140 and the cone crusher 150.

At this time, the jaw crusher 140 is crushed to about 100 ~ 300mm, the primary crushed raw material is crushed to about 20 ~ 30mm while passing through the cone crusher 150.

After completion of the crushing by the jaw crusher 140 as described above, foreign matter such as plastic or styrofoam contained in the raw material and the fine powder are separated by the gravity separating means 170.

The gravity separating means 170, the raw material dropped through the feeder 120 is first connected to the upper portion of the case (170a) is dropped on the conveyor (170a) foreign matter having a low specific gravity by the blower (170b) installed on one side thereof This is separated, the foreign matter is filtered through the screen 170c installed at the bottom.

The raw material in which foreign matters are first separated by the above configuration is supplied to the cone crusher 150 and discharged into gravel and aggregate having a predetermined particle size (about 20 to 30 mm).

In addition, the screen 130 is further connected on the process line of the cone crusher 150 to allow the selection of foreign matters by hand and the foreign matters through the magnetic separator 130a.

In addition, the through-hole 130b is integrally formed in the screen 130 so that the separated fine powder passes through it and falls to the bottom, and the waste introduced into the screen 130 is moved by the vibrator 130c. Cement fine powder adhering to the clavicle aggregate is washed by vibration and high pressure spray nozzle 130d.

In addition, a conveyor 130f is installed below the screen 130 to collect the fine powder.

Subsequently, the raw material crushed by the primary crushing unit 100 is crushed once again by the sand mill 210 of the secondary crushing unit 200 to be in the form of crushed stone and sand of 19 mm or less, and the crushed stone And the raw material discharged in the sand state is selected as a foreign matter magnetic separator (230a) of the screen 230 is installed on the process line of the rear.

In addition, the screen 230, the through-hole 230b is integrally formed to separate the fine powder is dropped to the bottom through the through-hole, the waste injected into the screen 230 and the vibration by the vibrator (230c) Through the washing operation by the high pressure spray nozzle 230d, the cement fine powder attached to the clavicle aggregate is washed again.

And, the lower side of the screen 230 is also provided with a conveyor 230f to collect the fine powder.

The raw material that has passed through the screen 230 is substantially the same as natural crushed stone or sand from which foreign substances are completely removed and is supplied to the raw material sorting separator 300.

In addition, the raw materials shredded after passing through the second shredding unit 200 is discharged to each yard as a conveyor 310 is separated by the screen and connected to one side, the fine powder discharged to the lower side of the screen is fine powder It is recovered through the recovery means 330.

The differential recovery means 330 is composed of a multi-stage settling tank 330a is collected in a configuration that is gravity settled while passing through each settling tank 330a.

In addition, the water recovered in the last settling tank is recirculated to the spray nozzle by the pump 330b connected to the spray nozzle, and the fine powder is supplied to the heat source while drying the dehydration tank having a screen (330c-1) ( 330c) is dehydrated and dried to be reused as a coating material for ceramics or blocks.

Meanwhile, only raw materials having a predetermined particle size or less of the raw materials that pass through the screen of one side of the cone crusher 150 are installed to face the secondary crushing unit 200. Raw materials having a predetermined particle size or more have different through holes 130b. It is selected by the screen of the individual having it is possible to produce aggregates of various specifications.

According to the present invention as described above, to prevent the environmental pollution by preventing the dust generated in the process of sorting the waste concrete, waste ascon, building waste materials, construction waste, mixed waste and the like to the air.

In addition, to completely separate the foreign matter mixed in the aggregate to prevent the strength degradation caused when the aggregate is recycled, to recycle the aggregate in the waste building materials, and to sort by one process of aggregate having a different particle size In order to obtain high quality aggregate close to natural aggregate.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit or scope of the invention as provided by the following claims. I would like to clarify that those who have knowledge of this can easily know.

Claims (7)

Hopper 110 is installed so that construction waste is input, and primary crusher 100 is installed with jaw crusher 140, screen 130, and cone crusher 150 on a continuous process line to crush raw materials to a certain granularity. ; A secondary crushing unit 200 in which a sand mill 210 is installed to crush only raw materials having a predetermined granularity after the raw material introduced from the primary crushing unit 100 passes the screen 230; And, A screen and a conveyor 310 are installed to discharge only raw materials having a predetermined particle size or less among the raw materials that have passed through the secondary crushing unit 200, and are connected to the conveyor 310 to settle and recover the fine powder. The waste / crushing and sorting device of the construction waste consisting of a configuration comprising the raw material selection separation unit 300 is installed. According to claim 1, The screen 130 is connected to one side of the jaw crusher 140, the foreign matter sorting and magnetic separator 130a by hand, the spraying nozzle (130d) and the vibrator (130c) Demolition / sorting and sorting device of the construction waste, characterized in that provided. According to claim 1, wherein the screen 230, the screen of the object having a different through hole 230b, respectively, is stacked in multiple stages, the magnetic separator 230a, the water spray nozzle 230d and the vibrator 230c ) Crushing / grinding and sorting device of the construction waste, characterized in that the connection is further installed. The method of claim 1, wherein the fine collection means 330 is composed of a multi-stage settling tank 330a, the water recovered in the last settling tank is connected to the pump 330b and the respective conveyors connected to the water spray nozzle (330c-1), characterized in that the construction waste, crushing and sorting device. The dewatering dryer (330c) of claim 4, wherein the settling tank (330a) is further connected to a dehydration dryer (330c) which rotates at a high speed while a heat source is supplied to be used as a coding material such as ceramics or blocks by dehydrating and drying the fine powder in a cake state. Separation and sorting device for the construction waste, characterized in that. 5. The method of claim 4, wherein the pump is connected to each of the spray nozzles (130d, 230d) is installed, so as to supply water to the waste / crushing and sorting device of the construction waste. According to claim 1, The jaw crusher 140, the gravity separation means 170 is further provided on one side, the gravity separation means 170, the case 170a, the discharge conveyor 170b and the exhaust fan ( 170c) and the screening / shredding and sorting device for the construction waste, characterized in that consisting of (170d).