KR102283646B1 - A device that crushes construction waste and recycles it as recycled fine aggregate, or safely recovers high-quality sand by attaching a foreign material removal device in the process of manufacturing crushed sand. - Google Patents

Abstract

The present invention relates to a device for safely recovering high-quality sand by crushing construction waste and recycling the same as recycled fine aggregate or attaching a foreign material removal device in the process of manufacturing crushed sand. More specifically, the device for safely recovering high-quality sand by crushing construction waste and recycling the same as recycled fine aggregate or attaching a foreign material removal device in the process of manufacturing crushed sand, recycles the construction waste as a recycled fine aggregate, and in the process of manufacturing sand which has been crushed through a crusher, stone dust, which is a by-product of sand and aggregate, is put into a sand washing and foreign material separator to remove soil dust and foreign substances to clean sand. According to the present invention, a high-pressure spraying device having a high-pressure water tank installed on an outside of a foreign material and sand washing floating separation chamber, with a foreign material discharge passage having a foreign material discharge pipe formed on an outside of the upper input pipe, and having a high-pressure spraying nozzle installed inside the foreign material and sand washing floating separation chamber; a high-pressure bottom spraying device having a bottom spray nozzle is installed on a conical spraying nozzle fixing conical plate at a lower part thereof; and a high-pressure water storage tank on a lower side of the high-pressure bottom spraying device of the sand discharge pipe in the center of the high-pressure bottom spraying device, are installed. The conical spray nozzle fixing conical plate has an inclination angle of about 5 to 45 degrees so that the sand does not naturally flow down and stagnate. A bottom spray nozzle is assembled under a protective shape to prevent abrasion of the sand. The sand is loaded between the 'L'-shaped steels to protect the conical spray nozzle fixing conical plate from abrasion.

Description

A device that crushes construction waste and recycles it as recycled fine aggregate, or attaches a foreign material removal device in the process of manufacturing crushed sand to safely recover high-quality sand. high-quality sand by attaching a foreign material removal device in the process of manufacturing crushed sand.}

The present invention relates to a device for safely recovering high-quality sand by crushing construction waste and recycling it as recycled fine aggregate, or attaching a foreign material removal device in the process of manufacturing crushed sand, and more particularly, recycling construction waste into recycled fine aggregate Alternatively, in the process of manufacturing sand that has been crushed by crushing rock dust, which is a by-product of sand and aggregate, it is put into a sand washing and foreign material separator to remove soil and foreign substances to clean the sand by shredding construction waste to be recycled as recycled fine aggregate or crushed. It relates to a device for safely recovering high-quality sand by attaching a foreign material removal device in the process of manufacturing sand.

Recently, a large amount of various construction waste has been generated due to the redevelopment of houses and apartments and road repairs, etc. is being heavily exploited.

Efficient treatment for this is in a very minimal state.

This not only wastes resources but also causes various environmental pollution, which raises processing costs and makes management difficult, highlighting the need for active utilization. A lot of technology development has been made for the processing apparatus or methods used in the However, there have been many difficulties in the industry and the current technical level of waste aggregate treatment equipment to regenerate construction waste in a high quality state suitable for all laws and regulations to obtain recycled aggregate that can be used for a prescribed purpose.

The conventionally used intermediate treatment device for construction waste mainly consists of a crushing device and sorting device that crushes and classifies large solidified waste concrete, waste asphalt, and various construction auxiliary materials into predetermined fine particles. Wastes crushed and classified by this method are usually used alone for landfilling and filling in the construction and civil engineering fields, or there is a method of recycling them as recycled aggregate through washing, crushing, sorting, and classification. In the case of , there was a problem in that it was not possible to produce high-quality remanufactured products that comply with the relevant regulations.

That is, the recycled aggregate, which is a recycled product, contains a lot of fine powder, soil powder, cement paste, foreign substances, etc., or the overall quality of the recycled aggregate, which is a recycled product, is lowered due to irregular particle size, etc. This was an important factor hindering technology development as the profitability of construction waste companies, which were produced and avoided using them and could not find a suitable way, could not improve the profitability of construction waste companies, which required huge facilities and costs.

When producing recycled coarse aggregate by crushing conventional construction waste or manufacturing crushed stone coarse aggregate, coarse aggregate raw material is injected while spraying water for the purpose of removing soil dust and foreign substances, and the spatula-shaped wings rub the aggregate and transport the aggregate. In the process of rubbing each other to remove and wash sand, soil powder, and foreign substances adhering to coarse aggregate, or in the process of manufacturing recycled recycled aggregate or artificial sand, in the process of crushing and grinding, or in the process of sprinkling, cleaning is good, but fine foreign substances cannot be removed. The reality is that the recycling of recycled coarse aggregates and recycled fine aggregates is avoided because it does not work well.

[Document 1] Patent Publication No. 2019-0039722 (published on April 15, 2019) [Document 2] Patent Publication No. 2018-0101874 (published on September 14, 2018) [Document 3] Utility Model Registration No. 0333761 (Registered on November 10, 2003) [Document 4] Patent Publication No. 2007-0034559 (published on March 28, 2007)

Therefore, it was devised to solve these conventional drawbacks, and the solution of the present invention is to recycle construction waste into recycled fine aggregate or supply sand from which foreign substances mixed in the process of manufacturing crushed sand are removed to provide secondary high-pressure watering. The purpose of this is to clean the sand cleanly by removing soil and foreign substances by separating the foreign substances as well as washing the sand.

The present invention is a high-pressure jetting device in which a high-pressure water container is installed on the outside of a foreign material and sand washing floating separation chamber in which a foreign material discharge passage is installed with a foreign material discharge pipe formed on the outside of the upper input pipe, and a high-pressure jet nozzle is installed inside the foreign material and sand washing floating separation chamber And after installing the high-pressure bottom injection device with the bottom injection nozzle installed on the conical plate fixed to the conical injection nozzle at the lower side, the sand discharge pipe in the center of the high-pressure bottom injection device installs a high-pressure water storage tank on the lower side of the high-pressure bottom injection device;
The conical spray nozzle fixing cone plate has an inclination angle of about 5 to 45 degrees so that the sand does not naturally flow down and stagnate, and the bottom spray nozzle is assembled under the protective shape to prevent abrasion of the sand, and between the 'L' beams. It is characterized in that the sand is loaded on the conical injection nozzle and the fixed conical plate is protected from abrasion.

In the present invention, the equipment is reduced compared to the prior art, so there are not many accessories, and the high-pressure water container attached to the outside of the cylindrical foreign material and sand washing floating separation chamber and the high-pressure jet nozzle installed on the circumference of the inner surface of the cylindrical foreign material and sand washing floating separation chamber The high-pressure ejection of the side circumference and the ejection area and the ejection area from the lower side to the upper side increase with the omnidirectional distribution of the injection nozzle through the conical plate in a conical shape on the side and the lower side. Since the scope is expanded, a lot of soil dust is washed in a short time, and it is an economically effective invention because it produces eco-friendly and high-quality recycled fine aggregate and artificial sand by floating and separating foreign substances.

1 is a cross-sectional view of an installation state of the sand washing and foreign matter removal device of the present invention;
2 is a cross-sectional view showing the sand washing and foreign matter removal device of the present invention;
3 is a cross-sectional front view of the high-pressure injector of the present invention;
4 is a cross-sectional plan view of the high-pressure injector of the present invention;
5 is a front cross-sectional view of the high-pressure bottom injection device of the present invention;
Figure 6 is a plan view of the high-pressure bottom injection device of the present invention
7 is an enlarged cross-sectional view of the main part of the upper end of the present invention;
8 is an enlarged cross-sectional view of the main part of the high-pressure bottom injection device of the present invention;

With respect to the embodiments of the present invention published in the text, specific structural or functional descriptions are only exemplified for the purpose of describing the embodiments of the present invention, and the embodiments of the present invention may be embodied in various forms. It should not be construed as being limited to the embodiments described in .

Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, similar reference numerals are used for components.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

When a component is referred to as being “connected” or “installed” with another component, it may be directly connected to or installed on the other component, but it is understood that other components may exist in between. it should be

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this application, terms such as "comprises" or "have" are intended to designate the presence of the specified feature, number, step, action, component, part, or a combination thereof, but one or more other It is to be understood that this does not preclude the possibility of the presence or addition of features or numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

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

1 is a cross-sectional view of an installation state of the sand washing and foreign matter removal device of the present invention, FIG. 2 is a cross-sectional view showing the sand washing and foreign matter removing device of the present invention, and FIG. 3 is a front cross-sectional view of the high-pressure spraying device of the present invention. 4 is a plan cross-sectional view of the high-pressure injection device of the present invention, Figure 5 is a front cross-sectional view of the high-pressure bottom injection device of the present invention, Figure 6 is a plan view of the high-pressure bottom injection device of the present invention, Figure 7 is at the upper end of the present invention 8 is an enlarged cross-sectional view of the main part of the high-pressure bottom injection device of the present invention.

In the central input pipe (11), the cyclone underflower continuously feeds the sand and foreign matter cleaning device (10), and the sand cleaning and foreign material removal device (10) is used to wash sand to produce good quality sand. It describes the case of efficiently washing sand by removing foreign substances, washing and exfoliating soil powder and cement paste, and recovering high-quality sand from which foreign substances have been removed.

Overall, as shown in FIGS. 1 and 2, it is installed to be divided into an upper part (A), a middle part (B), and a lower part (C), and the soil powder and cement paste are washed, peeled, and foreign substances are removed, so that good quality sand is installed. By recovering and manufacturing

In the upper part (A), an upper input pipe 11 through which sewage water, sand and foreign materials are supplied together is installed on the upper part of the cylindrical foreign material and sand washing floating separation chamber 17 configured in a cylindrical shape, and the upper input pipe 11 is The upper conical plate 12 located in the center and preventing the water ejected through the high-pressure spray nozzle 42 and the bottom spray nozzle 23 from scattering from the upper side from the lower side is installed in a conical shape toward the lower side, and the cylindrical A foreign material discharge passage 13 made of a cylindrical or rectangular shape to surround the outer diameter and collect the discharged foreign material from the upper side of the foreign material and sand floating separation chamber 17 is installed.

A foreign material discharge pipe 14 is connected to one part of the upper outer diameter of the foreign material and sand washing floating separation chamber 17 so that the separated foreign material is supplied to a foreign material dewatering screen (not shown).

It is to be fastened by the foreign material discharge passage 13 along the lower tip of the upper conical plate 12 and the upper end and middle part fastening bolts 15 .

The middle part (B) consists of a foreign material and sand washing floating separation chamber 17 in which sewage, sand, and foreign substances are supplied together through the upper inlet pipe 11, and the foreign material and sand washing floating separation chamber 17 are separated. A high-pressure water tank 43, a high-pressure injection device 40, into which high-pressure water and air or water or air are inputted from the high-pressure pump and air blower in the central part, and a check manhole 16 are installed in the lower part, and cylindrical foreign substances and A high-pressure bottom injection device 20 into which water and air from a high-pressure pump or a blower are input is installed to the outside under the sand washing floating separation chamber 17 .

The high-pressure bottom jetting device 20 constitutes a bottom jet nozzle 23 inside the floating separation chamber 17 for cleaning foreign substances and sand, and a conical injection nozzle fixing cone at the lower side of the floating separation chamber 17 for cleaning foreign substances and sand. The plate 22 is installed, and the inclination angle of the conical spray nozzle fixed conical plate 22 includes that an inclination angle (to have about 5 to 45 degrees) is formed so that the sand does not naturally flow down and stagnate, and the bottom surface spray nozzle (23) is a structure that is assembled under the 'L'-shaped protective section so that the sand does not wear out, and the sand is piled up between the 'L'-shaped sections to protect the conical spray nozzle fixing conical plate 22 from abrasion. .

The foreign material and sand washing flotation separation chamber 17, the lower conical jet nozzle fixed conical plate 22, and the inner circumference of the foreign material and sand washing flotation separation chamber 17 and the lower surface of the conical jet nozzle fixed conical plate 22 The ejection of the high-pressure injection nozzle 42 of the high-pressure injection device 40 surrounding the foreign matter and sand washing floating separation chamber 17 as the injection nozzle 23 is distributed in a variety of omni-directional ways in the side circumference and the lower radial shape. The lower conical injection nozzle fixed conical plate 22 on the lower side has a large injection area and ejection area from which the bottom injection nozzle 23 is ejected. In time, more washing and suspending soil powder and foreign matter to separate it from the sand and discharging the soil powder and foreign substances to the outside, or spraying or jetting while washing to wash the soil powder of aggregate, and the material with a lighter specific gravity than sand rises to the top quickly. , It is to remove the soil dust and foreign substances attached to the sand and increase the washability of the sand while inducing the raised floating foreign substances from sinking so that a lot of soil powder and floating foreign substances can be separated and removed in a shorter time.

The high-pressure jetting device 40 is a high-pressure jet composed of a plurality of stages at regular intervals in the circumferential direction and formed in a cylinder 43 surrounding the foreign substances and sand washing floating separation chamber 17 in a cylindrical direction, and a high-pressure pump and air It will be connected to the Broa (41).

A plurality of bottom spray nozzles 23 attached to the fixed conical plate 22 made of a cone (conical) formed at an oblique angle on the lower side are radially attached in all directions and are perpendicular or angled from the bottom to the upper end. Water or air is ejected at high pressure from the bottom to the upper part by an external high-pressure pump and blower to keep the foreign substances suspended and prevent them from sinking, thereby lengthening the floating time and allowing the suspended foreign substances to be discharged quickly while simultaneously removing the soil remaining in the sand. It effectively floats, separates, cleans, and discharges foreign substances.

The angle of inclination of the conical disk of the conical plate 22 for fixing the conical spray nozzle is to have an inclination angle [about 5 to 45 degrees] so that the sand does not naturally flow down and stagnate, and the bottom spray nozzle 23 is a protective section steel to prevent the sand from being abraded. It is a structure for assembling the spray nozzle under the 'L' shaped steel and also protects the conical plate 22 for fixing the conical spray nozzle from abrasion due to the accumulation of sand.

The foreign material and sand washing floating separation chamber 17, the lower conical injection nozzle fixed conical plate 22 and the bottom injection nozzle 23 forcibly sprayed or ejected water or air under pressure omnidirectionally. While washing the soil of the soil, the material with a lighter specific gravity than the sand rises to the top quickly and prevents the floating foreign substances from sinking. Provided is a device for increasing the washability of sand.

The lower end (C) is made of a high-pressure bottom spraying device 20, and the sand particles separated from foreign substances are deposited downward, and the inclination angle of the conical spray nozzle fixed conical plate 22 formed at an oblique angle is stagnant because the sand naturally flows down. By having an inclination angle [about 15 to 55 degrees] so that it does not occur, the bottom spray nozzle 23 is configured to assemble the spray nozzle under the protective section so that the conical plate 22 caused by sand is not abraded. It also protects the conical plate 22 for fixing the conical jet nozzle from abrasion due to the accumulation of sand between the shape steels. The water level sensor) is to be installed in one part of the sand discharge pipe (30) to operate the discharge motor operated valve (31).

The conical spray nozzle fixing conical plate 22 is fastened at the tip through the middle and lower part fastening bolts 24 with the foreign material and sand washing floating separation chamber 17 and the packing interposed therebetween, and the injection nozzle fixing conical plate 22 ) is wrapped in a high-pressure water storage tank 21 whose lower side is formed in any one of a cylindrical shape or a rectangular shape, and a high-pressure water and air inlet pipe 25 is connected to the high-pressure water storage tank 21 to provide a high-pressure pump and an air blower. Water or air is supplied at high pressure from the

The sand and sewage discharged to the sand discharge pipe 30 are supplied to the sand dewatering screen so that the sand is dewatered and then produced as a product.

In the case of producing sand (fine aggregate), more specifically, the foreign material mixed with the sewage and sand supplied from the cyclone underflower and falling into the upper input pipe 11 of the sand washing and foreign material separation device 10 is disposed in the middle part. In (B), a bucket 43 is formed into which water and air from a high-pressure pump or blow are input to the outside of the foreign material and sand washing flotation separation chamber 17, and high-pressure injection is performed inside the foreign material and sand washing flotation separation chamber 17. The conical plate 22 constituting the nozzle 42, and also the conical injection nozzle fixed conical plate 22 on the lower side of the foreign material and sand washing floating separation chamber 17, has an inclination angle [about 5-45 degrees] so that the sand does not naturally flow down and stagnate. It has a structure in which the bottom spray nozzle 23 is constructed so that the conical plate 22 is not abraded by sand, and it is assembled under the 'L'-shaped protective section. The conical injection nozzle fixing conical plate 22 is protected from abrasion.

The foreign material and sand washing flotation separation chamber 17 and the lower surface spray nozzle 23 of the lower conical spray nozzle fixed conical plate 22 are variously distributed omnidirectionally in the side circumference and the lower radial shape, so that the cylindrical foreign material and the sand The high-pressure water container attached to the outside of the washing flotation separation chamber 17 and the high-pressure jet nozzle 42 installed on the inner circumference of the cylindrical foreign material and sand washing flotation separation chamber and the conical injection nozzle fixed conical plate 22 at the lower side The high-pressure injection nozzle directed upward from the top has a large injection area and ejection area, so it is installed on the fixed injection conical plate 21 formed at an oblique angle as a whole, and forms a vertical or angular shape from the bottom to the upper end of a plurality of radially or omnidirectionally attached multiple Water or air is sprayed or ejected at high pressure from the bottom to the upper part by the high-pressure spray nozzle 23 to continuously float foreign substances, so that foreign substances cannot sink, and the floating time is lengthened, and the floating foreign substances are separated from foreign substances and sand washing flotation The upper part of the chamber 17 allows it to be quickly discharged into the foreign material discharge passage 13 and at the same time, it washes the soil of the sand and efficiently floats, separates, washes, and discharges the sand and foreign substances, and the sand particles separated from the foreign substances settle down The sand discharge pipe 30 composed of a double pipe through which high-quality sand from which foreign substances are removed is discharged from the central part of the spray fixed conical plate 22 formed at an oblique angle, which is operated in stages by sensing the weight according to the specific gravity of water or foreign substances The foreign matter discharged to the discharge passage 13 is discharged to the foreign material dewatering screen through the foreign material discharge pipe 14, and at the same time, the discharge electric valve 31 is automatically operated step by step by the attached water level sensor (not shown) to operate the sand discharge pipe ( 30), the sand and sewage are discharged and then supplied to the sand dewatering screen.

In the initial sand washing and foreign material separation device 10, when no foreign substances mixed with sewage and aggregate or sand are put in, the high-pressure spray nozzle 23 is operated to be sprayed or ejected. And when the water level in the foreign material discharge passage 13 is detected by the water level sensor attached to the foreign material discharge passage 13, the discharge electric valve 31 attached to the sand discharge pipe 30 composed of a double pipe at the bottom is completely closed according to the water level. It opens step by step in the state, and when foreign substances mixed with sewage and sand falling from the cyclone underflower and falling into the upper input pipe 11 of the sand washing and foreign material separation device 10 are introduced, the cone-shaped spraying fixed at an oblique angle A plurality of high-pressure injection nozzles 23 attached radially or omnidirectionally to the conical plate 22 are already operated and sprayed or ejected from the time when foreign substances mixed with sewage and sand are not introduced, and each Water or air is ejected from the bottom to the upper part at high pressure by an external high-pressure pump and blower to wash soil and keep foreign substances from sinking to prevent them from sinking, thereby lengthening the floating time. It is discharged from the foreign material discharge pipe 14 through (13) to efficiently float, separate, wash, and discharge sand and foreign materials.

The high-pressure injection device 20 is a high-pressure water and air inlet pipe 25 installed in the high-pressure water storage tank 21 installed to surround the conical injection-fixed conical plate 22 to supply water or air at high pressure from the outside. It is to be sprayed at a certain angle into the floating separation chamber 17 for washing foreign substances and sand through the high-pressure injection nozzle 23 so that the foreign substances are separated from the sand.

The automatic operation sequence of the sand washing and foreign material separation device 10 operates the high-pressure spray nozzle 23 and the electric discharge valve 31 for discharging the sand is opened sequentially, and the foreign material and sand are washed in the foreign material discharge passage 13 When foreign substances and sewage are discharged from the floating separation chamber 17 to the foreign material discharge passage 13, the foreign material is discharged to the foreign material discharge pipe 14 by receiving a sensor signal. Sequential automatic operation is performed so that the pump starts automatically.

According to the present invention, water and air from a high-pressure pump or a blower are input to the outside of the floating separation chamber for cleaning foreign substances and sand in the process of recycling construction waste into recycled fine aggregate or manufacturing crushed sand, and spraying the bottom surface inside the foreign substances and sand washing floating separation chamber After separation from foreign substances through the water or air discharged from the nozzle and the conical injection nozzle fixed at the bottom of the conical plate, the foreign substances are discharged to the dewatering screen through the foreign material discharge passage and the foreign material discharge pipe, and the remaining sand is removed from the center of the high-pressure jetting device. Sand and sewage flows into the dewatering screen through the opening of the discharge electric valve, the sand is dewatered, and the sewage is pumped and recirculated with a sand pump. To provide a very useful invention.

10: aggregate washing and foreign material separation device 11: upper input pipe
12: upper conical plate 13: foreign matter discharge passage
14: foreign material discharge pipe 15: upper part and middle part fastening bolt
16: inspection manhole 17: foreign matter and sand washing floating separation room
20: high-pressure injection device 21: high-pressure water storage tank
22: conical injection nozzle fixed conical plate 23: bottom injection nozzle
24: middle and lower part fastening bolt 25: water and air inlet pipe
30: sand discharge pipe 31: electric discharge valve
40: high pressure injection device 41: high pressure pump and air blow
42: high-pressure injection nozzle 43: high-pressure water tank
A: Upper part B: Middle part
C: lower part

Claims (5)

A high-pressure bucket 43 is installed on the outside of the foreign material and sand washing floating separation chamber 17 in which a foreign material discharge passage 13 with a foreign material discharge pipe 14 formed on the outside of the upper input pipe 11 is installed, and foreign material and sand washing and floating A high-pressure injection device 40 having a high-pressure injection nozzle 42 installed inside the separation chamber 17 and a high-pressure bottom injection device 20 in which the bottom injection nozzle 23 is installed on the conical plate 22 for fixing the conical injection nozzle on the lower side. After installing the sand discharge pipe 30 in the center of the high-pressure bottom spraying device 20, a high-pressure water storage tank 21 is installed at the lower side of the high-pressure bottom spraying device 20;
The conical spray nozzle fixing conical plate 22 has an inclination angle of about 5 to 45 degrees so that the sand does not naturally flow down and stagnate, and the bottom spray nozzle 23 is assembled under the protective shape so that the sand does not wear out. , Crushing construction waste, characterized in that the sand is loaded between the 'L'-beams to protect the fixed conical plate 22 from being abraded, and recycling it as recycled aggregate, or removing foreign substances in the process of manufacturing crushed sand A device that safely recovers high-quality sand by attaching a device. delete delete delete delete

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