KR100464805B1 - sand and gravel a manufacturing device process and system - Google Patents

Abstract

The present invention relates to an aggregate production method and apparatus for producing aggregates such as sand and gravel from crushed stone powder or recycled aggregate stone powder of waste concrete.

The present invention is a storage process for storing waste stone powder, primary screening process for removing foreign particles and aggregates of large particle size, such as vinyl chips, waste wood, tree roots from waste stone powder, and input process to scatter the waste stone powder And, the stone powder scattering process for scattering and conveying the injected waste stone powder with a blowing force, and the primary specific gravity to separate the foreign matter, such as soil and dust, fine powder with a large specific gravity and small specific gravity from the waste stone powder and aggregate aggregate Separation process, the second specific gravity separation process to separate the fine aggregate with a large specific gravity and the small specific gravity from the foreign matter separated from the aggregate and collect the fine aggregate, and collect the foreign particles with large particles from the foreign matter separated from the fine aggregate The first dust collecting process, the second dust collecting process to aggregate and load and collect the foreign matter that passed through the first dust collecting process, and the aggregate collected in the first to second specific gravity separation process is washed with water and And a second water washing step of selecting, to provide the write to be made of a loading process for shipping the selected sand and gravel in the production of high quality aggregates in tailings minutes.

Description

Aggregate manufacturing method and apparatus {sand and gravel a manufacturing device process and system}

The present invention relates to an aggregate manufacturing method and apparatus for producing aggregates such as sand and gravel from crushed stone powder or recycled aggregate powder of waste concrete. The present invention relates to waste stone powder or recycling derived from producing aggregate in a crusher workshop. It is possible to use sand and gravel by removing particles of fine particles of less than 0.074mm and foreign substances such as soil, dust, and fine powder, which are unnecessary as aggregates in physical properties such as aggregate stone powder or slag, sand, and masato (hereinafter referred to as waste stone powder). It relates to an aggregate production method and a manufacturing apparatus to produce a granularity.

Generally, aggregates such as sand or gravel for concrete are collected from rivers and rivers, washed with water and sorted to produce by size, or aggregates are produced by crushing at crushing or waste concrete recycling crushing plant. .

However, recently, the collection of aggregates in rivers and rivers has become a big problem due to the destruction of the natural environment and the depletion of resources, and the production of aggregates in quarries or waste concrete recycling crushing sites is caused by the excessive inclusion of fine powder and fine particles. Not only was the production of waste and fine aggregates unreasonable, but not only the production of high-quality aggregates, but also the occurrence of excessive wastewater and waste sludge caused serious pollution of the natural environment.

Conventionally, aggregate preparation methods for collecting aggregates from stone powder or recycled aggregate stone powder are known in the related art, but this conventional method is simply a method of removing foreign matter and fine particles by washing or holding the stone powder with water. The problems of environmental pollution due to wastewater treatment, waste sludge, and dust treatment, which were washed with stone powder, were inevitable, and even if there is another known process, the cost increase and the limit of production capacity to solve these problems were inevitable. It does not show practicality.

In addition, the aggregate produced by the above method was not only distributed evenly by the size of the standard, but also contains foreign matters such as tosa fine powder, vinyl chips, wood chips, tree roots, etc. When the strength was low and the absorption rate was high, the quality as aggregate could not be guaranteed.

In order to solve such existing problems, the applicant has applied for a patent application for "aggregate manufacturing method and apparatus" to remove soil, dust, fine powder, and other garbage from waste stone to produce high quality aggregate as concrete material. It has been filed as 0034658, Utility Model Registration Double Application No. 2002-0018751, and Patent Application No. 2002-0046602.

The present invention is to provide another embodiment of the pre-applied aggregate production method and manufacturing apparatus, and the earth, dust, fine powder and other debris from waste stone powder derived from the existing quarries or waste concrete recycling process The present invention relates to an aggregate manufacturing method and apparatus for achieving an effect of producing aggregates suitable for quality standards by providing sufficient high quality as a material of concrete by removing the back.

The production method according to the present invention is a storage process for storing an appropriate amount of waste stone powder, and a primary screening process for screening and removing foreign substances and aggregates of large particle size, such as vinyl chips, waste wood, tree roots from the waste stone powder, where relatively selected A process for receiving and dispersing the received waste-rock powder and scattering it, and a process for scattering the powdered waste-rock powder with a blowing force and transporting it; Primary specific gravity separation process for separating foreign matters such as fine powder and collecting aggregate, and secondary specific gravity separation for separating fine aggregates with high specific gravity and foreign matters with low specific gravity and collecting fine aggregate from foreign substances separated from the aggregate Agglomeration of foreign matters such as soil, dust, fine powder, etc. that have passed through the process, primary dust collection process that collects large foreign matters from foreign matter separated from fine aggregate, and primary dust collection process Secondary dust collecting process to collect and collect while loading, Secondary water washing process to wash the aggregate collected in the 1 ~ 2nd specific gravity separation process with water and to sort into a small and large particle size, Sand and gravel selected above It consists of a loading process for shipping.

In addition, the manufacturing apparatus according to the present invention by removing the foreign particles such as aggregate and vinyl fragments, waste wood, tree roots, etc. of the large particle size in the waste stone powder with a primary separator to put the waste stone powder of relatively selected state into the stone powder diffuser into the blowing fan. It is scattered and transferred to the primary cyclone specific gravity separator.In the primary cyclone specific gravity separator, foreign substances such as soil, dust, and fine powder, which are unnecessary as aggregate and aggregate, are separated by specific gravity by suction power of the suction fan, and then aggregate is collected. The foreign matter separated from the aggregate in the cyclone specific gravity separator is transferred to the secondary cyclone specific gravity separator to separate the fine aggregate and the foreign matter with small specific gravity by the suction power of the suction fan, and the aggregate collected in the 1 ~ 2 secondary cyclone specific gravity separator. Is produced as aggregate through the screening and washing process after being transferred to the secondary sorter or the aggregate washing sorter. The foreign matter separated from the fine aggregate is collected and provided to the sand and gravel suitable for concrete from the waste stone powder by collecting the foreign matter through the primary dust collector and the secondary dust collector. It is an object of the present invention.

1 is a flow chart of the aggregate manufacturing process according to the present invention

2 is a general configuration of the aggregate manufacturing apparatus according to the present invention

3 is a state diagram of the stone powder scattering and primary cyclone specific gravity separator according to the present invention

Figure 4 is a cross-sectional view of the operating state of the stone powder scattering machine according to the present invention

5 and 6 are cross-sectional view of the operating state of the primary cyclone specific gravity separator according to the present invention

7 is a plan sectional view of an operating state of the primary cyclone specific gravity separator according to the present invention;

Figure 8 is a cross-sectional view of the operating state of the primary dust collector according to the present invention

Figure 9 is a cross-sectional view of the operating state of the secondary dust collector according to the present invention

10 is a side sectional view of a secondary dust collector according to the present invention;

[Explanation of symbols on the main parts of the drawings]

10 ... Storage 20 ... 1 Lane Separator 30 ... Stone Disperser

31.Frame 32.Scatter tank 33.Blowing fan

34 Hopper 35 Motor 36 Feeding wing

40 ... 1st cyclone specific gravity separator 41 ... outer 42 ... inner

43 ... support frame 44 ... collection tank 45 ... motor

46 Belt conveyor 47 Suction fan 48 Exhaust pipe

50 ... Secondary cyclone specific gravity separator 51 ... Exhaust pipe 60 ... Primary dust collector

61 ... Outer 62 ... Inner 65 ...

66 ... Bag filter 67 ... Exhaust duct 70 ... Secondary dust collector

71 ... dust collection tank 72 ... Injector 74 ... belt conveyor

80 ... 2-lane separator 90 ... aggregate wash separator

The present invention is to produce sand and gravel which is a high-quality aggregate suitable for concrete utilizing waste-rock powder, the configuration of the manufacturing process and manufacturing apparatus of the embodiment according to the present invention in Figures 1 to 10 shown in the drawings It's showing in detail.

First, the aggregate manufacturing process according to the present invention for producing aggregate (sand, gravel) as the main raw material of waste stone will be described in detail with reference to FIG.

The aggregate manufacturing process according to the present invention comprises a storage step (100) for first storing an appropriate amount of waste stone generated in the quarries and waste concrete recycling crushing plant; A primary screening process (101) that receives waste stone powder stored in the storage process (100) and selectively removes foreign substances such as vinyl chips, waste wood, and tree roots and aggregates having a large particle size from the waste stone powder; An input step (102) of receiving and dispersing relatively selected waste-rock powder by the primary screening step (101); A stone powder scattering step 103 of scattering and transporting waste stone powder scattered by the feeding step 102 with a blowing force; The primary specific gravity separation process of receiving waste stone powder transported in the dispersed state by the stone powder scattering process 103 to separate foreign substances such as aggregate having a large specific gravity and soil having a small specific gravity, dust, fine powder, and collecting aggregate ( 104); A second specific gravity separation process 105 for separating the fine aggregate having a larger specific gravity and the foreign matter having a smaller specific gravity from the foreign matter separated from the aggregate by the primary specific gravity separation process 104 and collecting the fine aggregate; A primary dust collecting step 106 of collecting foreign matter having large particles from foreign matter separated from the fine aggregate by the secondary specific gravity separation process 105; A secondary dust collecting step 107 which aggregates and collects and collects foreign substances such as soil, dust, and fine powder that have passed through the primary dust collecting step 106; A second water washing selection process (108) for receiving the aggregate collected in the first to second specific gravity separation processes (104, 105), washing with water, and sorting the particles into large and small particles; Characterized in the manufacturing process consisting of; loading step (109) for loading to ship the aggregate of sand and gravel selected by the secondary water washing selection step 108 in the above.

On the other hand, in the above manufacturing process, when the waste stone powder has excessive water content, the separation effect of aggregates, soil, dust, fine powder, etc. is reduced. In such a case, vinyl scrap, waste wood, Waste stone powder from which foreign substances such as tree roots have been removed is added to the drying process 110 and sufficiently dried, and then provided to the input process 102 and the stone powder scattering process 103 to separate aggregates, soil, dust, and fine powder. Not only to increase the effect, but also heat-drying to increase the separation and separation effect of the existing aggregate and fine cement powder, waste stone powder using a dryer of a known technique that is heated to 300 ℃ ~ 400 ℃ in the drying process (110) Can be dried.

In the storage process 100, the waste stone powder derived from the quarries or waste concrete recycling crushing plant is stored in an appropriate amount to enable continuous supply, and the primary screening process 101 is waste stone supplied from the storage process 100. By sorting out and removing foreign substances such as vinyl chips, waste wood, and tree roots mixed with powder and coarse gravel or large particle size, the waste stone powder in a relatively selected state is provided to the input process 102.

Here, the primary screening process 101 removes light vinyl chips or waste wood by blowing air while scattering and dropping the waste-rock powder provided in the storage process 100, and coarse gravel or Aggregate with large particle size will be removed.

Next, the input step 102 scatters the waste stone powder in the selected state provided by the primary screening step 101 and drops it into the stone powder scattering step 103, thereby increasing the distribution ratio of the waste stone powder and scattering by the blowing force. It is possible to transfer in the same state.

The stone powder scattering process 103 applies a strong blowing force to the waste stone powder scattered by the input process 102 to increase the distribution ratio of the waste stone powder and transfer the waste stone powder to the primary specific gravity separation process 104 in a scattered state. , The first specific gravity separation process (104) sucks foreign matters such as soil, dust, fine powder having a small specific gravity from the waste stone powder conveyed in a scattered state and separates it from the aggregate and collects the aggregate, wherein the foreign matter separated from the aggregate is Suction transported to the secondary specific gravity separation process (105) again to suck the foreign matter, such as soil, dust, fine powder with a small specific gravity from the foreign matter to separate from the fine aggregate and collect the fine aggregate, foreign matter sucked while being separated from the fine aggregate It is provided to the primary dust collecting process 106.

The primary dust collecting step 106 is a process of collecting foreign matter having a large particle size and a large specific gravity among the foreign substances suctioned and transported, and it is possible to collect foreign particles having large particles by using a cyclone dust collecting method and a bag filter. The foreign matter of fine particles passing through 106) is suctioned and transported to the secondary dust collecting process 107, where the flocculant is injected into the fine particles to agglomerate the foreign matter, and the aggregated foreign matter is mixed with the mixed aggregate for road substrate through the loading process. It is used as soil for materials or fill.

Meanwhile, aggregate collected in the first specific gravity separation process 104 and the second specific gravity separation process 105 is transferred to the second water washing screening process 108, washed with water, and sorted into granules of sand and gravel, and belt conveyors. It is loaded through the loading step 109 using the shipment.

In the aggregate manufacturing process of the present invention, the aggregates are collected by separating the foreign matter, such as earth and sand, dust, and fine powder, which are unnecessary as aggregates and aggregates in the state of scattering waste stone powder, with specific gravity differences, and the collected aggregates are washed and selected by water. Produced with high quality sand and gravel, foreign matter separated from aggregate is collected and aggregated through dust collection process to prevent environmental pollution due to dust and sludge generation pollution due to wastewater treatment.

Next, the configuration of the aggregate manufacturing apparatus according to the present invention for producing aggregate (sand, gravel) as the main raw material for the waste-rock powder will be described in detail with reference to FIGS.

First, Figure 2 shows the overall configuration of the aggregate manufacturing apparatus according to the present invention, the storage tank 10 and the waste stone powder generated in the quarries and waste concrete recycling crushing plant is stored in an appropriate amount; A primary separator 20 for selectively removing foreign substances such as large aggregates and vinyl chips, waste wood, and tree roots mixed with waste stone powder supplied from the storage tank 10; A stone powder scattering machine 30 which scatters and transports waste stone powder in a relatively selected state provided through the primary separator 20; A primary cyclone specific gravity separator 40 which separates foreign substances such as aggregates having a large specific gravity and small specific gravity, dust, fine powder, and the like and collects aggregates while the waste stone powder is scattered; Foreign matter separated from the aggregate is introduced into the primary cyclone specific gravity separator 40, and the secondary cyclone specific gravity separator 50 separates the fine aggregate having a larger specific gravity from the foreign matter and the foreign matter having a smaller specific gravity and collects the fine aggregate; A primary dust collector 60 for introducing foreign matter separated from aggregate in the secondary cyclone specific gravity separator 50 and collecting foreign matter having large particles; A secondary precipitator 70 which injects a coagulant to fine particles introduced through the primary precipitator 60 as fine particles to aggregate and discharge and load the aggregated foreign matter; The primary cyclone specific gravity separator 40 and the secondary cyclone specific gravity separator 50 is composed of a secondary sorter 80 and an aggregate washing separator 90 for screening or washing the aggregate collected.

The manufacturing apparatus of the waste stone powder is stored in an appropriate amount in the storage tank 10, where the foreign matter such as large aggregates and vinyl fragments, waste wood, tree roots mixed with the waste stone powder is transferred to the primary separator 20 is selectively removed, the The waste-rock powder in a relatively selected state to the primary separator 20 is supplied to the primary particle cyclone separator 40 in a state in which it is introduced into the stone powder scattering machine 30 and scattered by the blowing fan 33. Separates large aggregates and foreign matters such as soil, dust, and fine powder with small specific gravity and collects aggregates.The foreign substances separated from the aggregates are transferred to the secondary cyclone specific gravity separator 50 so that the large aggregates and small specific gravity are small. The foreign matter is separated and fine aggregates are collected.

The foreign matter separated and discharged to the secondary cyclone specific gravity separator 50 is introduced into the primary dust collector 60 and the secondary dust collector 70, and collected and aggregated to prevent environmental pollution. Aggregate collected in the separator (40) (50) is provided to the secondary separator (80) to selectively produce aggregates with a large particle size and aggregates with a small particle size or to provide the aggregate washing machine (90) to wash and produce aggregates. .

The storage tank 10 stores a suitable amount of waste stone powder to make a continuous supply, the primary separator 20 is a known technique of the existing sorting machine by applying a blow to the waste stone powder supplied from the storage tank 10, vinyl scrap, waste By removing foreign matter such as wood, tree roots, and the like by removing the coarse gravel or large particle size of the unnecessary waste aggregates to provide a waste stone powder in a relatively selected state to the stone powder scattering machine (30).

The stone powder scattering machine 30 according to the present invention scatters the injected waste stone powder with a strong blowing force of the blowing fan 33, and transports the scattering tank 32 and the blowing fan 33 on the frame 31 placed on the ground. ) And a hopper 34, wherein the scattering tank 32 is formed in a cylindrical or quadrangular shape, and a hopper 34 in which waste stone powder is transferred to the belt conveyor 31a and supplied to one upper side is installed. The blowing fan 33 is mounted on the side surface of the flying tank 32 in which the hopper 34 is installed.

In addition, the hopper 34 is equipped with an injection blade 36 for dropping and dropping the waste-rock powder, the injection blade 36 is mounted to the inlet of the lower end in the form of a rotary impeller radially formed wings, the hopper 34 The motor 35 for rotating the injection blade 36 is attached to the side portion scattering tank 32 of the), the pulley and the belt is mounted to rotate the injection blade 36.

Therefore, the waste-rock powder supplied to the hopper 34 through the belt conveyor 31a is scattered and dropped into the flying tank 32 by the rotating feed blade 36, where the strong blower fan 33 It is transferred to the opposite side as it gradually spreads from the scattered state by the blowing force.

On the other hand, the primary cyclone specific gravity separator 40 for separating the waste-rock powder conveyed in the scattered state into a large specific gravity and foreign matter such as small soil, dust, and fine powder has one side of the scattering tank 32 on the upper side. A cylindrical outer cylinder 41 is installed on the support frame 43, which is installed to be connected to the outer side and the lower portion is formed in a conical shape, and an inner cylinder 42 having a small diameter is installed on the inner upper side of the outer cylinder 41, and is conical. The collection tank 44 and the belt conveyor 46 are installed in the lower portion of the outer cylinder 41 formed as a.

In addition, a suction fan 47 equipped with an exhaust pipe 48 is mounted on the upper end of the inner cylinder 42 installed in the outer cylinder 41 to suck foreign matter into the inner cylinder 42 and the secondary cyclone specific gravity separator through the exhaust pipe 48. Inflow to (50).

On the upper side of the collection tank 44, a plurality of nozzles are mounted and the injection pipe 44d for injecting water is mounted, and the scraper 44c, which is rotated by the driving of the motor 45, is installed on the inner bottom surface. An outlet 44e through which aggregate collected at the outer side of the bottom surface is discharged is formed.

The scraper 44c is attached to a fixing bar 44b radially installed in the collecting tank 44, and the fixing bar 44b is a bracket 45b and a collecting tank 44 attached to the lower side of the support frame 43. Is mounted on the upper side of the shaft 44a rotatably installed at the shaft), and the pulley 45a is rotated by the driving of the motor 45 attached to the support frame 43.

In the primary cyclone specific gravity separator 40 having such a configuration, the waste-rock powder conveyed in the state scattered by the blowing fan 33 from the stone powder scattering machine 30 flows toward the inner circumferential surface of the outer cylinder 41 and rotates on the inner circumferential surface to provide centrifugal force. At this time, the aggregate having a large specific gravity is rotated on the inner circumferential surface of the outer cylinder 41 by receiving a relatively strong centrifugal force and gradually falls down to collect the collecting tank 44 formed in the lower portion of the conical shape, and the specific gravity of the soil, dust, Foreign matter such as fine powder is stagnant in the center portion of the outer cylinder 41 under relatively weak centrifugal force.

The foreign substance stagnated at the center of the outer cylinder 41 is sucked into the inner cylinder 42 by the suction force of the suction fan 47 and is introduced into the secondary cyclone specific gravity separator 50 through the exhaust pipe 48 so that the specific gravity in the waste-rock powder is increased. The large aggregate and the small specific gravity to separate the foreign matter to collect the aggregate, aggregate collected in the collection tank 44 is a scraper 44c that is rotated by the water and the motor 45 is injected into the fine particles in the injection pipe (44d) After washing to some extent by the discharge port 44e is discharged to the belt conveyor 46 is conveyed.

The secondary cyclone specific gravity separator 50 into which the foreign matter separated from the aggregate is introduced in the primary cyclone specific gravity separator 40 is provided with a cylindrical outer cylinder having a lower portion having a conical shape, and installed on an inner upper side of the outer cylinder and having a suction fan and an exhaust pipe ( 51) is installed in the inner cylinder, the lower portion of the outer cylinder formed in a conical shape consisting of a collection tank equipped with a scraper rotating by the injection pipe and the drive of the motor, installed in the same structure as the primary cyclone specific gravity separator (40) Will be.

In the secondary cyclone specific gravity separator 50, the exhaust pipe 48 of the primary cyclone specific gravity separator 40 is installed connected to the side of the outer cylinder, and foreign matter separated from the aggregate is introduced therein. The aggregate and the small specific gravity of the soil, dust, fine powder, etc. are separated, where the fine aggregate is collected in the collection tank, washed and then discharged and transported to the belt conveyor, foreign matter such as soil, dust, fine powder is discharged to the exhaust pipe (51). Through the primary dust collector 60 is introduced.

The primary dust collector 60 according to the present invention has a structure in which a bag filter is installed in a cyclone dust collecting method to collect foreign substances having large particles among foreign substances introduced through the exhaust pipe 51, and the outer cylinder 61 formed with a conical bottom portion. Is installed on the ground by the support frame 63, the screw conveyor 64 is mounted on the lower end of the conical shape to discharge and collect the collected foreign matter, the partition plate inside the upper side where the exhaust pipe 51 is installed 65 is formed to divide the inner space up and down, and a small inner cylinder 62 is provided in the center of the bottom of the partition plate 65.

An outer cylinder in which a filter case 66a is installed in the center of the upper side of the partition plate 65, which is an upper end of the inner cylinder 62, and a plurality of bag filters 66 are mounted therein, and the bag filter 66 is installed. A suction fan 68 equipped with an exhaust pipe 69 is installed outside the upper part of the 61 to allow foreign substances of fine particles passing through the bag filter 66 to flow into the secondary dust collector 70 through the exhaust pipe 69. .

On the other hand, by installing an exhaust duct 67 equipped with a filtration filter on the upper side of the outer cylinder 61 may be formed to naturally discharge the air purified through the filtration filter, wherein the bag filter (attached to the filter case 66a) 66 and the filtration filter mounted on the exhaust duct 67 can be installed by applying a known technique.

The primary dust collector 60 having the above-described configuration, first, through the cyclone dust collecting method, the foreign matter that is introduced into the outer cylinder 61 through the exhaust pipe 51 has a large amount of foreign matter on the inner circumferential surface of the conical outer cylinder 61 by the action of centrifugal force. It is transported and loaded by the screw conveyor 64, and foreign matter having smaller particles is sucked into the inner cylinder 62 by the suction force of the suction fan 68 and collected while passing through the bag filter 66. The bag filter 66 passes through the exhaust pipe 69 and flows into the secondary dust collector 70.

Secondary dust collector (70) is for agglomeration and collection of foreign matter not collected in the primary dust collector 60, the injection pipe is supplied with the coagulant to the upper and both sides in the dust collecting tank 71 sealed in the appropriate space 72 is provided, and a plurality of nozzles 72a are installed therein to inject coagulant into fine particles such as fog, and a belt conveyor 74 is provided in the longitudinal direction at the lower side in the dust collecting tank 71, and a belt Several damper plates 73 are formed in the form of a partition between the conveyor 74 and the upper side of the dust collecting tank 71.

Damper plate 73 is a function to block the flow of foreign substances introduced from the primary dust collector 60 through the exhaust pipe 69 to stagnate, increase the cohesive effect of the foreign matter, the space is formed in the upper and lower portions inflow, A plurality of them are installed at predetermined intervals, and a vibrator 73a for generating vibration is attached to drop and drop off the aggregated foreign matter on the surface of the damper plate 73.

The belt conveyor 74 operates at a low speed by driving a motor (not shown) to transfer and discharge foreign substances accumulated and accumulated to the outside of the dust collecting tank 71, and a scraper 74a is mounted at the end thereof on the surface. The accumulated foreign matter is removed, and the foreign matter removed from the belt conveyor 74 is transferred to another belt conveyor 75.

A certain amount of flocculant injected from the nozzle 72a of the injection pipe 72 is stored at the bottom of the dust collecting tank 71, and when a predetermined amount is stored, the coagulant is discharged through the drain valve 71a mounted at the side part, where the flocculant is water. Or flocculant with viscosity.

In addition, a discharge pipe 76a is attached to the upper side of the dust collecting tank 71 opposite to the exhaust pipe 69, and a dust collecting box 76 having a bag filter 77 is installed therein to collect the remaining foreign matter. Only filtered air is discharged to the outside to prevent dust pollution.

The secondary dust collector 70 according to the present invention by injecting a coagulant to the foreign matter flowing through the exhaust pipe 69 as fine particles such as fog to agglomerate foreign matter, discharge the aggregated foreign matter to the belt conveyor 74 to transport do.

Therefore, in the present invention, foreign substances such as soil, dust, and fine powder separated from fine aggregates in the secondary cyclone specific gravity separator 50 are introduced into the primary dust collector 60 and the secondary dust collector 70 to be collected and aggregated to be treated. Therefore, it prevents pollution due to dust, and foreign substances such as soil, dust, and fine powder obtained by the dust collection process are used as mixed aggregate mixed materials for road substrates or soil for soil.

Meanwhile, the aggregate collected in the primary cyclone specific gravity separator 40 and the secondary cyclone specific gravity separator 50 is transferred to a belt conveyor and used as aggregate for concrete, or transferred to the secondary separator 80 through a belt conveyor. Aggregated aggregates may be produced in large and small particle sizes, or the aggregates may be transferred to an aggregate washing sorter 90 to clean and sort aggregates and then transfer and load the aggregates.

Aggregate washing selector 90 is a conventional drum known in the art is rotated by the drive of the motor, a predetermined amount of water is injected into the drum while the inner surface of the drum is composed of several screw blades attached The aggregate is introduced into the drum by a belt conveyor, and is washed with water while being transferred to one side by a screw blade, and then discharged and loaded from the drum into the belt conveyor.

According to the present invention, in the waste stone powder supplied from the storage tank 10, foreign substances such as aggregate and vinyl chips, waste wood, and tree roots of large particle size are removed and removed by the primary separator 20, and waste stone powder in a relatively selected state. It is scattered from the stone powder scattering machine 30 to the blower fan 33 and transferred to the primary cyclone specific gravity separator 40, where the foreign matters such as soil, dust and fine powder, which are unnecessary as aggregate and aggregate, are separated by specific gravity. Is collected, and the foreign matter separated from the aggregate is transferred to the secondary cyclone specific gravity separator 50 to separate the aggregate and the foreign matter having a small particle size into specific gravity, and collected in the first to second cyclone specific gravity separators 40 and 50. Aggregate is transported to the secondary separator (80) or the aggregate washing sorter (90) and produced as aggregate through the screening and washing process, foreign matter separated from the aggregate in the secondary cyclone specific gravity separator (50) is the primary dust collector (60). ) And the secondary dust collector (70) The dust collecting and processing doemeurosseo foreign matter that will produce an aggregate in the pollution-suppressed condition.

In the present invention, by controlling the blowing force of the blowing fan 33 and the suction force of the suction fan 47 in the 1 to 2 secondary cyclone specific gravity separators 40 and 50, the specific gravity extracted from the waste-rock powder is large and small. By selecting the particle size of the aggregate, it is possible to produce sand and gravel for the intended use not only in fly ash and slag but also in physical properties such as sand collecting and masato.

The present invention extracts and produces excellent aggregates (gravel, sand) from the waste-rock waste, which can be recycled and protect the natural environment. In particular, since the generation of waste water, dust or sludge is suppressed as much as possible, Pollution problems such as scattering dust, noise, and wastewater treatment are low, and the soil, dust, and fine powder produced and discharged from the aggregate can be used as mixed aggregate admixture for road substrates or soil for sediment.

The present invention is to produce a good quality aggregate clean without destruction and pollution of the natural environment, thereby achieving the overall savings effect through the recycling of waste resources as well as the protection and cost protection of the natural environment.

Claims (8)

A storage step (100) for storing an appropriate amount of waste stone generated in the quarries and waste concrete recycling crushing plant; A primary screening process (101) that receives waste stone powder stored in the storage process (100) and selectively removes foreign substances such as vinyl chips, waste wood, and tree roots and aggregates having a large particle size from the waste stone powder; An input step (102) of receiving and dispersing relatively selected waste-rock powder by the primary screening step (101); A stone powder scattering step 103 of scattering and transporting waste stone powder scattered by the feeding step 102 with a blowing force; The primary specific gravity separation process of receiving waste stone powder transported in the dispersed state by the stone powder scattering process 103 to separate foreign substances such as aggregate having a large specific gravity and soil having a small specific gravity, dust, fine powder, and collecting aggregate ( 104); A second specific gravity separation process 105 for separating the fine aggregate having a larger specific gravity and the foreign matter having a smaller specific gravity from the foreign matter separated from the aggregate by the primary specific gravity separation process 104 and collecting the fine aggregate; A primary dust collecting step 106 of collecting foreign matter having large particles from foreign matter separated from the fine aggregate by the secondary specific gravity separation process 105; A secondary dust collecting step 107 which aggregates and collects and collects foreign substances such as soil, dust, and fine powder that have passed through the primary dust collecting step 106; A second water washing selection process (108) for receiving the aggregate collected in the first to second specific gravity separation processes (104, 105), washing with water, and sorting the particles into large and small particles; Aggregate manufacturing method characterized in that consisting of; loading step (109) for loading to ship the aggregate of sand and gravel screened by the second water washing selection step (108) in the above. The method of claim 1, The waste stone powder relatively selected by the primary screening process 101 is introduced into the drying process 110 heated to 300 ° C. to 400 ° C., and then sufficiently heated and dried to provide the dried waste stone powder to the input process 102. Aggregate manufacturing method characterized in that. A storage tank 10 in which waste stone powder is stored in an appropriate amount; A primary separator 20 for selectively removing foreign substances such as large aggregates and vinyl chips, waste wood, and tree roots mixed with waste stone powder supplied from the storage tank 10; A stone powder scattering machine 30 which scatters and transports waste stone powder in a relatively selected state provided through the primary separator 20; A primary cyclone specific gravity separator 40 which separates foreign substances such as aggregates having a large specific gravity and small specific gravity, dust, fine powder, and the like and collects aggregates while the waste stone powder is scattered; Secondary cyclone specific gravity separator (50) for separating foreign matter and aggregates in the primary cyclone specific gravity separator (40) and separating the foreign matter having a larger specific gravity and the foreign matter having a smaller specific gravity from the foreign matter and collecting aggregate; A primary dust collector 60 for introducing foreign matter separated from aggregate in the secondary cyclone specific gravity separator 50 and collecting foreign matter having large particles; A secondary precipitator 70 which injects a coagulant to fine particles introduced through the primary precipitator 60 as fine particles to aggregate and discharge and load the aggregated foreign matter; Aggregate manufacturing apparatus, characterized in that consisting of a secondary separator (80) and an aggregate washing separator (90) for sorting and washing the aggregate collected in the first to second cyclone specific gravity separator (40) (50). The method of claim 3, wherein The stone powder scattering machine 30 which scatters and transports waste stone powder has a cylindrical scattering tank 32 installed on a frame 31 placed on the ground, and a hopper to which waste stone powder is supplied to one upper side of the scattering tank 32. 34) is installed, the aggregate manufacturing apparatus, characterized in that the blowing fan (33) is mounted on the side of the scattering tank (32) in which the hopper (34) is installed. The method of claim 4, wherein Rotating impeller-type injection blades 36 having radial blades are mounted at the lower opening of the hopper 34, and a motor 35 for rotating the injection blades 36 is attached to the side surface of the hopper 34. Aggregate manufacturing apparatus characterized by. The method of claim 3, wherein The primary cyclone specific gravity separator 40 includes a cylindrical outer cylinder 41 having one side of the scattering tank 32 connected to the upper side thereof and a lower side thereof formed in a conical shape and installed on the support frame 43; An inner cylinder 42 installed at an inner upper side of the outer cylinder 41 and equipped with a suction fan 47 and an exhaust pipe 48 at an upper end thereof; Aggregate manufacturing apparatus, characterized in that the collection tank 44 and the belt conveyor 46 is installed on the lower side of the outer cylinder (41) formed in a conical shape. The method of claim 6, The collection tank 44 of the primary cyclone specific gravity separator 40 is provided with a spray pipe 44d having a plurality of nozzles mounted on the upper side thereof, and a scraper 44c rotating on the bottom surface by driving of the motor 45 is provided. It is installed, the aggregate manufacturing apparatus, characterized in that the discharge port (44e) is formed to discharge the aggregate collected on the outside of the bottom portion. The method of claim 3, wherein Secondary cyclone specific gravity separator 50 is formed in the same structure as the primary cyclone specific gravity separator 40, aggregate production characterized in that the exhaust pipe 48 of the primary cyclone specific gravity separator 40 is installed on the side of the outer cylinder Device.