KR20040057498A - Method and apparatus for producing recycling aggregate using waste concrete - Google Patents

Abstract

PURPOSE: A method and an apparatus for producing recycled aggregate using waste concrete are provided to produce high-quality recycled aggregate right at the construction workplace. CONSTITUTION: The method for producing recycled aggregate using waste concrete includes a mortar removing process(S1) in the aggregate; a floating specific gravity sorting process(S2) for sorting and removing foreign substances in the aggregate; a gravel separating process(S3) for separating gravel according to particle size; a sand separating process(S4); and a rinsing and classifying process(S5) for rinsing and classifying the sand. Preferably, a particle shape improving process(S6) is placed between the mortar removing process(S1) and the floating specific gravity sorting process(S2); and a sand sorting process(S7) is added to sort out sand in the foreign substances.

Description

Method and apparatus for producing recycled aggregate using waste concrete

The present invention relates to a method and apparatus for producing recycled aggregates using waste concrete to produce recycled aggregates from waste concrete. More particularly, the present invention relates to various foreign substances mixed with and removing mortar from aggregates made by crushing waste concrete. The present invention relates to a method and apparatus for producing recycled aggregate using waste concrete to remove the gravel and sand according to the use of the aggregate while having sufficient quality for reuse.

In general, recycled aggregates, also called recycled aggregates, refers to aggregates that are manufactured to be shredded, sorted, and reused for construction waste or waste concrete.

Referring to the configuration shown in Figure 6 as a conventional embodiment for the production method and apparatus of the recycled aggregate as described above are as follows.

The waste concrete is introduced into the jaw crusher 102 through the vibrating feeder 100 and the grease screen 101 and crushed, and the sorted material filtered by the grease screen 101 is vibrated screen 103. Filtered by the earth and sand 200 and the air sorter 500 through the blower 104, the aggregates crushed through the jaw crusher 102 is filtered through the magnetic separator 105, the metal sorting 300, manual selection After the impurities are separated through the 106, the crusher 107 is introduced, and the aggregates crushed while passing through the crusher 107 are separated by the particle size by the vibrating screen 108 to form the recycled aggregate 400. Will be.

In addition, the large particle size filtered by the vibrating screen 108 is inputted to the crusher 109, crushed, and re-injected into the vibrating screen 108, and re-injected by the magnetic separator 110 while being re-injected. Once the metals 300 are separated, the air sorter 500 is sorted by the blower 104 before the vibrating screen 108 is formed of the recycled aggregate 400.

By making the waste concrete as a recycled aggregate as described above, there is a problem that the quality of the recycled aggregates is significantly degraded because fine particles such as wood, vinyl, cloth, plastic, styropol, and ascon are not removed.

In addition, by producing a recycled aggregate as described above, there is a problem in that the mortar adhered to the surface of the recycled aggregate is not sufficiently peeled off the quality of the recycled aggregate.

In addition, by producing the recycled aggregate as described above, there is a problem that can not be produced by separating the gravel and sand, in particular sesa and Wangsa.

In addition, as the low-quality recycled aggregate is produced as described above, there is a problem in that poor construction due to the failure of the recycled aggregate frequently occurs.

Accordingly, the present invention has been made to solve the conventional problems as described above,

The purpose is to remove waste mortar from the aggregates made by crushing the waste concrete and to remove the various contaminants that have been mixed to have sufficient quality for reuse and to separate and produce the gravel and sand according to the purpose of the aggregate. The present invention provides a method and apparatus for producing recycled aggregates.

In addition, another object of the present invention is to provide an apparatus for producing recycled aggregate using waste concrete to easily remove the mortar attached to the aggregate by a mortar peeler made of a simple structure.

In addition, another object of the present invention is to provide an apparatus for producing recycled aggregate using waste concrete to easily remove the foreign matter mixed in the aggregate by a floating gravity separator having a simple structure.

In addition, another object of the present invention is to provide an apparatus for producing recycled aggregate using waste concrete to allow sand to be properly separated into royal sand and sesa by a sand separator having a simple structure.

In order to achieve the above object, the present invention is a recycled aggregate production method for separating the soil and metals by repeating the process of crushing and sorting the waste concrete and separating the aggregates by particle size through the vibration screen; A mortar peeling process of removing the mortar by putting the separated aggregate into a mortar peeler; A floating gravity sorting step of inputting aggregates from which mortar is removed by the mortar peeling process to a floating gravity sorter to sort and remove foreign substances by specific gravity; The gravel separated through the suspended gravity screening process is separated into particles by particle size while being washed with a vibrating separator; Sand separation process is separated and discharged through the floating gravity screening process and the gravel separation process is separated into sesa and Wangsa by the sand separator; It is characterized in that it comprises a washing and classification process for washing and classifying by washing the sand and royal sand separated by the sand separation process in the sand washer.

In addition, between the mortar peeling process and the floating gravity screening process, the aggregate is crushed and impacted by the impact crusher, and it is characterized in that it further comprises a mold improvement process to improve the shape.

In addition, it is characterized in that it further comprises a sand sorting process to screen the sand contained in the foreign matter separated by the floating gravity screening process by a dewatering screen to send to the sand separator.

In addition, the recycled aggregate production apparatus for separating the soil and metals by repeating the process of crushing and sorting the waste concrete by inputting and separating the aggregate by particle size through the vibration screen; A mortar peeler for removing malta of the separated aggregate; A float gravity separator for removing foreign substances by specific gravity from aggregates from which mortar is removed by the mortar peeler; A vibrating separator for washing the gravel selected through the floating gravity separator to separate the particles by particle size; It characterized in that it comprises a sand separator for separating the sand selected by the floating gravity separator and the vibrating separator to Sesa and Wangsa.

In addition, the mortar peeler is provided with a cylindrical drum formed on each side of the inlet and outlet, respectively, is filled with water and steel balls inside the drum rotated while the aggregate and the steel ball is injected to each other friction is configured to peel off the mortar It is characterized by.

In addition, the floating gravity separator is provided with a water tank having an aggregate inlet and an aggregate discharge port at both ends, the foreign matter collecting portion is provided to the upper portion of the water tank, and the sand and gravel to sort the inside of the water tank to the lower portion of the foreign matter collecting portion. A mesh network is mounted, and a water supply unit is installed below the mesh network, and a wave forming unit is formed at the bottom of the tank to form waves and collect sand.

In addition, the sand separator is provided with a water supply pipe having a sand inlet on one side and having a sand yarn outlet on the other side and a royal discharge outlet on the bottom of the sand yarn outlet, and a floating part moved up and down according to the water level inside the water pipe. A sand separator is rotatably mounted between the fine yarn outlet and the royal discharge outlet inside the water pipe, and a connection link connecting the floating portion and the sand separator is provided.

1 is a process chart showing a recycled aggregate production method according to the present invention,

Figure 2 is a schematic overall configuration diagram showing a recycled aggregate production apparatus according to the present invention,

Figure 3 is an enlarged view showing the mortar peeling of the recycled aggregate production apparatus according to the present invention,

Figure 4 is an enlarged view showing the floating gravity separator of the recycled aggregate production apparatus according to the present invention,

Figure 5 is an enlarged view showing a sand separator of the recycled aggregate production apparatus according to the present invention,

Figure 6 is a schematic diagram showing a conventional embodiment.

* Explanation of symbols for the main parts of the drawings

10: mortar peeling

11 drum 12 inlet 13 outlet

14 steel ball

20: floating gravity separator

21: tank 22: aggregate inlet 23: aggregate discharge outlet

24: foreign matter collecting unit 25: mesh network 26: water supply unit

27: wave forming unit

30: vibrating separator

40: sand separator

41: water pipe 42: sand inlet 43: fine dust outlet

44: royal discharge outlet 45: floating portion 46: sand separator

47: connection link

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

Referring to the process chart showing a recycled aggregate production method according to the invention as shown in Figure 1 as follows.

The recycled aggregate is separated from the aggregate finely crushed by the pretreatment process (S0), the mortar is peeled off by the mortar peeling process (S1), the mold is improved by the granular improvement process (S6), and the floating gravity screening process (S2) is performed. The fine foreign matter is removed, and the gravel separation process (S3) and the sand separation process (S4) is to be configured to separate and commercialize the sand and sand respectively.

In addition, the sand discharged through the floating gravity sorting step (S2), the gravel separation step (S3) and the sand sorting step (S7) to separate the sand in the sand separation step (S4) is moved to the sand separation step (S4). It is configured to.

In more detail, the pretreatment process (S0) is used to crush waste concrete into jaw crusher and cone crusher, and to separate the soil, metals and lumps of foreign matter by vibrating screen, magnetic separator and manual sorting, and blower. It is configured to repeat the selection.

In addition, the mortar peeling process (S1) refers to a process of removing the mortar by putting a malta attached to the surface of the recycled aggregate crushed by the pretreatment process (S0) to the mortar peeler.

The aggregate from which the mortar is removed by the mortar peeling process (S1) is subjected to a granular improvement process (S6). The granular improvement process (S6) is injected into the impact crusher, and the crushing and grinding is performed again by adding the aggregate to the impact crusher. It is the process that makes this improvement.

The aggregate is subjected to the floating gravity screening process (S2) after the vertical improvement process (S6) is finished, the floating gravity screening process (S2) is used to put the aggregate into the floating gravity screener to float the water using the specific gravity Refers to the process of selecting and removing fine foreign matter contained in aggregate.

In addition, the floating gravity screening process (S2) serves to separate fine foreign matter such as wood or vinyl cloth plastic styropol ascon flakes and at the same time to separate and discharge sand and gravel by specific gravity, the separated gravel is gravel separation process ( Sand introduced and separated into S3) is introduced into the sand separation process (S4), and the separated foreign matter is introduced into the sand selection process (S7).

The gravel separated by the floating gravity screening process (S2) is introduced into the gravel separation process (S3), the gravel separation process (S3) is separated by particle size while the gravel is washed through the vibrating separator and washing machine to become a product and vibrate The sand hung by the sorter refers to a process to be introduced into the sand separation process (S4).

Then, the foreign matter separated through the floating gravity screening process (S2) is subjected to a sand screening process (S7), the sand screening process (S7) is a sand separation process by selecting the sand contained in the foreign matter by a dehydration screen ( The process of sending to S4).

In addition, the sand separated by the floating gravity screening step (S2) is subjected to a sand separation step (S4), the sand separation step (S4) refers to the process of separating the sand into the fine sand and royal sand.

In the sand separation step S4, both the sand separated by the floating gravity screening step S2 and the sand separated by the sand separation step S7 and the sand separated by the gravel separation step S3 are introduced. It is to be divided into sesa and royal.

After separation into sesa and royal sand by the sand separation process (S4) is subjected to the washing and classification process (S5), the washing and classification process (S5) is classified after washing the sesa and royal sand by the send unit It is to say that the process to achieve.

Therefore, the production method of the recycled aggregate is to remove the mortar of the recycled aggregate and completely remove the fine foreign matter to produce a high-quality recycled aggregate, such that the high-quality gravel and sand is produced by separating the particle size.

On the other hand, as shown in Figure 2 will be described a schematic overall configuration showing a recycled aggregate production apparatus according to the present invention.

The waste concrete is separated by particle size by vibrating screen 2 by repeating the process of being crushed by the pretreatment and the foreign matter is selected.

The pre-treated aggregate is introduced into the mortar peeler 10 and rotated together with water to be rubbed with each other to completely remove the mortar, and the aggregate that has been removed from the mortar is crushed and shredded as it is introduced into the impact crusher 50 to improve the shape. Will be.

Aggregate with improved shape is injected into the floating gravity sorter 20, and relatively light and fine foreign substances such as wood or vinyl cloth plastic styropol ascon pieces are caught by the specific gravity and separated into the dehydration screen 60, and sand is separated from the floating gravity. The lower part of the sorter 20 sinks into the sand separator 40 and the gravel discharged by the floating gravity separator 20 is introduced into the vibrating separator 30.

Here, the foreign matter separated in the dehydration screen 60 is dehydrated while only the foreign matter is discharged to the foreign matter accommodating portion 61, the sand moved to the dehydration screen 60 together with the foreign matter is filtered by the dehydration screen 60 The sand separator 40 is to be moved.

Then, the gravel introduced into the vibrator 30 is sorted by particle size and then washed to be a product by moving to the gravel accommodating part 31.

In addition, the sand moved together with the gravel to the vibrator 30 is selected by the vibrator 30 to be moved to the sand separator (40).

Therefore, the sand separator 40 is introduced into the sand selected by the floating gravity separator 20, the dewatering screen 60, the vibrating separator 30 is moved, and the sand is separated into a royal sand and sesame sand washing machine It is to move to 70.

Wangsa and Sesa moved to the sand washer 70 is washed by the sand washer 70 is to be classified into a sand receiving portion 71 to be a product.

Therefore, the present recycled aggregate production apparatus is configured to remove the mortar of aggregates crushed by pretreatment, improve the shape of the aggregate, remove fine foreign matter, and separately produce gravel and sand by particle size.

On the other hand, as shown in Figure 3 when explaining the enlarged view showing the mortar peeling of the recycled aggregate production apparatus according to the present invention.

The mortar peeler 10 is configured such that the drum 11 having the inlet 12 and the outlet 13 on both sides is driven to rotate.

Such mortar peeler 10 is filled with the aggregates and the water in the water and the steel ball 14 after the input of the aggregates crushed by the pre-treatment into the drum 11 into the drum (11), the aggregate and the water in the water The steel balls 14 are rubbed and rubbed against each other, and at the same time, the mortar that is rubbed and rubbed against the inner surface of the drum 11 is attached to the surface of the aggregate.

The aggregate in which the mortar is removed is to be discharged to the outside of the drum 11 through the outlet (13).

By the mortar peeler 10, the aggregate is completely made of high quality gravel and sand to remove the mortar.

On the other hand, as shown in Figure 4 when explaining the enlarged view showing the floating gravity separator of the recycled aggregate production apparatus according to the present invention.

Floating gravity separator 20 is provided with a water tank 21 having an aggregate inlet 22 and an aggregate discharge port 23 at both ends, and the foreign matter collecting unit 24 is provided at the top of the water tank 21, the foreign matter A mesh network 25 for sorting sand and gravel is mounted in the lower part of the collection part 24, and a water supply part 26 is installed in the lower part of the mesh network 25. The wave forming unit 27 is formed to form a wave in the lower portion of the water tank 21 and collects sand.

Here, the suspended gravity separator 20 is aggregated into the aggregate inlet 22, the foreign matter is suspended by the specific gravity in the interior of the water tank 21 is filtered by the foreign matter collecting unit 24, the mesh net 25 By the gravel remains and sand passes through and sinks to the lower portion of the tank 21, the gravel caught in the mesh network 25 to the outside through the aggregate discharge port 23 by the flow of water in the tank 21. It is discharged.

Then, the sand passing through the mesh network 25 is collected by the wave forming unit 27 by the water injected by the water supply unit 26 is discharged to the bottom.

In addition, the wave forming unit 27 is to move up and down or left and right to form a wave in the water in the water tank 21 so that the foreign matter is more smoothly sorted by the foreign matter collecting unit 24.

Therefore, the floating gravity separator 20 is configured to remove the fine foreign matter contained in the aggregate by a specific structure by a simple structure to improve the quality of the aggregate.

On the other hand, as shown in Figure 5 when explaining the enlarged view showing the sand separator of the recycled aggregate production apparatus according to the present invention.

Sand separator 40 is provided with a water inlet pipe 41 having a sand inlet 42 to one side and a sand yarn outlet 43 to the other side and a royal discharge outlet 44 to the bottom of the sand yarn outlet 43, the water pipe A floating portion 45 is provided to move up and down in accordance with the water level in the interior of the 41, and the sand separator 46 between the fine yarn discharge port 43 and the royal discharge outlet 44 into the water pipe 41. ) Is rotatably mounted, and is configured to include a connection link 47 connecting the floating portion 45 and the sand separator 46.

Here, the sand flowing into the sand inlet 42 together with the water passes through the water pipe 41 so that the royal sand is relatively heavy and is positioned below the relatively light sesa.

In this way, the royal sand and the sesa in a layer while passing through the water pipe (41) together with the water by the sand separator plate 46 is discharged through the royal sand outlet 44 and the sesa passed through the sand separator plate 46 By being discharged to the fine yarn outlet 43, the sand is separated into the royal sand and sesa.

And, the floating portion 45 is moved up and down according to the water level of the water moving through the water pipe (41), the shangdong of the floating portion 45 is rotated by the connection link 47 of the sand separator 46 By converting it, the sand is separated into royal and sesa according to the amount of water and sand introduced.

As described above, the present invention is to remove the mortar from the aggregate made by crushing the waste concrete and to remove various foreign substances mixed to have a sufficient quality for reuse, while at the same time to be produced by separating the gravel and sand according to the use of the aggregate By doing so, high-quality aggregates are easily regenerated, and poor construction due to defects in recycled aggregates is prevented in advance, and separately produced and can be used immediately, and shortage of aggregates is prevented in advance.

In addition, the present invention has the effect that the mortar attached to the aggregate is easily removed by a mortar peeler having a simple structure, so that the production is easy, the installation is simple, and the mortar is more reliably removed.

In addition, the present invention, by allowing the foreign matter mixed in the aggregate is easily removed by a floating gravity separator made of a simple structure, it is easy to manufacture, easy to use and has the effect of more precise removal of the foreign matter.

In addition, the present invention by the sand separator made of a simple structure to ensure that the sand is properly separated into the royal sand and sesa, it is easy to manufacture, easy to use and has the effect of using the royal sand and sesa immediately.

Claims (7)

In the recycled aggregate production method for separating the soil and metals by repeating the process of crushing and sorting the waste concrete and separating the aggregates by particle size through the vibration screen; A mortar peeling process (S1) for removing the mortar by putting the separated aggregate into a mortar peeler; A floating gravity sorting step (S2) of inputting the aggregate from which mortar is removed by the mortar peeling step (S1) to a floating gravity sorter to sort and remove foreign substances by specific gravity; The gravel selected through the floating gravity screening process (S2) is gravel separation process (S3) and is separated by particle size while being washed with a vibration separator; Sand separated and discharged through the floating gravity screening process (S2) and the gravel separation process (S3) is introduced into a sand separator and separated into sesa and royal sand (S4); Method for producing recycled aggregate using waste concrete, characterized in that it comprises a washing and classification step (S5) to wash and classify the sand and sediment separated by the sand separation step (S4) into a sand washer. The method of claim 1; Between the mortar peeling process (S1) and the floating gravity screening process (S2), the aggregate is broken and polished by an impact crusher, and the granular improvement process (S6) is further included. Production method of recycled aggregate. The method of claim 1 or 2; Production of recycled aggregate using waste concrete, characterized in that it further comprises a sand sorting step (S7) to separate the sand contained in the foreign matter separated by the floating gravity sorting step (S2) by the dewatering screen and send to the sand separator. Way. In the recycled aggregate production apparatus for separating the soil and metals by repeating the process of crushing and sorting the waste concrete and separating the aggregates by particle size through the vibration screen; A mortar peeler 10 for removing malta of the separated aggregate; A floating gravity separator 20 for removing foreign substances by specific gravity from aggregates from which mortar is removed by the mortar peeler 10; A vibrating separator 30 for washing the gravel selected through the floating gravity separator 20 to separate the particles by particle size; Apparatus for producing recycled aggregate using waste concrete, characterized in that it comprises a sand separator 40 for separating the sand selected by the suspended gravity separator 20 and the vibrating separator 30 into sesa and royal sand. The method of claim 4; The mortar peeler 10 is provided with a cylindrical drum (11) having an inlet (12) and an outlet (13), respectively, on both sides, and after the water and steel balls (14) are filled into the drum (11). Apparatus for producing recycled aggregates using waste concrete, characterized in that the aggregate is rotated and the steel ball 14 is rubbed with each other is configured to peel off the mortar. The method of claim 4 or 5; The floating gravity separator 20 is provided with a water tank 21 having an aggregate inlet 22 and an aggregate discharge port 23 at both ends, and a foreign matter collecting unit 24 is provided above the water tank 21. The mesh net 25 for sorting sand and gravel is mounted to the lower part of the foreign matter collecting unit 24, and the water supply unit 26 is installed below the mesh net 25. , The apparatus for producing recycled aggregate using waste concrete, characterized in that the wave forming portion 27 is formed to form a wave at the lower portion of the tank 21 to collect sand. The method of claim 4 or 5; The sand separator 40 is provided with a water inlet pipe 41 having a sand inlet 42 on one side and a sand yarn outlet 43 on the other side and a royal sand outlet 44 on the bottom of the sand yarn outlet 43. The floating portion 45 is provided to move up and down in accordance with the water level into the water pipe (41), the sand separation plate between the fine yarn discharge port 43 and the royal sand outlet 44 into the water pipe (41). (46) is rotatably mounted, the production apparatus of the recycled aggregate using the waste concrete, characterized in that the connection portion 47 is provided to connect the floating portion 45 and the sand separator 46.