KR101125178B1 - Manufacturing methods of fine aggregate using stone - Google Patents

Abstract

The present invention relates to a method for producing fine aggregate using gemstones, and more particularly, to produce fine aggregates such as heavy sand, green yarn, and plastered sand using gemstones, so that the silt can be completely recovered using a non-social water device. The present invention relates to a method for producing fine aggregate using raw materials, which can significantly reduce the amount of sludge produced and at the same time improve the productivity of fine aggregate and reduce manufacturing costs.

The present invention is the input of raw stone for producing fine aggregate and the raw stone input and fine aggregate screening step for screening fine aggregates having a particle size of 6mm or less, and the heavy yarn manufacturing step for producing a solid yarn of 6mm or less by separating the selected fine aggregates; Green yarn or plastered yarn manufacturing step for producing green yarn or plastered sand having a particle diameter of 2mm or less by separating fine aggregate separated in the heavy yarn manufacturing step, and produced in the heavy yarn manufacturing step and green yarn or plastered yarn manufacturing step The non-social water stage for recovering the silt, the silt resupply stage for resupplying the silt recovered in the non-social water stage to the heavy sand manufacturing stage and the green sand or the silt yarn manufacturing stage, and the water and sludge separated in the non- social water stage Characterized in that it comprises a sludge treatment step of treating the mixture.

Fine aggregate, heavy sand, green sand, plastered sand, sea water system, cyclone

Description

Manufacturing method of fine aggregate using stone

The present invention relates to a method for producing fine aggregate using gemstones, and more particularly, to produce fine aggregates such as heavy sand, green yarn, and plastered sand using gemstones, so that the silt can be completely recovered using a non-social water device. The present invention relates to a method for producing fine aggregate using raw materials, which can significantly reduce the amount of sludge produced and at the same time improve the productivity of fine aggregate and reduce manufacturing costs.

In general, in the supply and demand of fine aggregates, such as sand, for domestic construction aggregates, the amount produced and supplied by dredging of rivers or seas is not sufficient, and thus the production of sand for ready-mixed concrete and general industrial snow sand is used by using raw materials. to be. Hereinafter, sand produced using this method is called artificial sand.

At this time, the raw stone required for the production of artificial sand is using the stone powder and soil powder derived by the production of crushed aggregate, sand contained in the masato, and reed sand.

At present, the biggest problem in manufacturing artificial sand is that the sand content of the produced artificial sand is high, and the granularity of the produced sand is not suitable because the granularity of the produced sand cannot be recovered completely during the manufacturing process, and the sand assembly rate does not match. The amount of sludge generated is so high that it costs a lot of money and manpower to process it.

1 is a block diagram showing a conventional fine aggregate manufacturing process.

The raw stone to be supplied is primarily separated into rubble mixture having an average particle diameter of more than 6 mm and an aggregate mixture having a particle size of less than that by input into a cylindrical rotating screen. Aggregate mixtures refer to mixtures of non-stone (wood, etc.), soil, and fine aggregates.

As a result, the mixed aggregate is introduced into the first immersion tank. In the first immersion tank, various kinds of unnecessary floats float on the water, and the soil powder and fine aggregates sink. At this time, the pump pumps the soil powder and fine aggregates submerged in the first immersion tank and enters into the power cyclone. Power cyclone is a device that separates the mixture by the difference of specific gravity by using centrifugal force. The silt (fine sand of 0 ~ 2mm, below) and earth powder are discharged to the top and the heavy sand (coarse of 0 ~ 6mm of particle, below) Is discharged to the bottom. In reality, however, the power cyclone does not completely separate the mass and the middle firing. The silt and soil discharged to the top of the power cyclone are again supplied to the first immersion tank along the overflow pipe. This is to recover the mass again.

The heavy sand discharged on the chute from the lower portion of the power cyclone is supplied to the first screen device. The first screen device includes a net body vibrating by a vibrator, and uses the net body to transfer the heavy yarn placed on the upper part as if it is a sieve. In the front of the first screen device, a heavy yarn conveyor is installed and stacked in the heavy sand field.

However, at this time, there is a problem that the soil sand includes soil powder and silt which could not be separated from the power cyclone.

On the other hand, only the silt or soil is dropped through the screen below the first screen device. The silt or soil is supplied onto the second screen device, and the second screen device also vibrates in the same form as the first screen device to supply the silt, etc. placed on the upper part to the mass conveyor.

The Mass Conveyor moves the mass and piles it on the Misaya Site. In addition, the silt, etc. discharged downward from the second screen device is supplied to the second immersion tank, the silt and the remaining soil supplied to the second immersion tank is supplied to the first immersion tank again to be separated or administered to the sludge immersion tank through the above process. As a result, it is classified as sludge.

According to the conventional fine aggregate production method as described above, the soil content is high in the fine aggregates such as produced heavy sand or silt, and the fineness of the fine aggregates produced is not completely recovered during the manufacturing process, and a large amount of silt is contained in the sludge. Too rough, there was a problem that the assembly rate does not fit.

In addition, there is a serious variation in the assembly rate of the heavy sand produced according to the state of the raw stone used in the production of fine aggregates, a large amount of sludge generated during manufacturing, and thus the fresh water supply in the sedimentation tank is not smooth and productivity is reduced. there was.

The present invention has been made to solve the above problems, the object of the present invention is to recover fine silt using a non-social water device to produce fine aggregates with a constant assembly rate, as well as to reduce the occurrence of sludge The present invention provides a method for producing fine aggregate using raw stone which can reduce productivity and manufacturing cost of fine aggregate.

In addition, the present invention has another object to provide a fine aggregate production method using a raw stone that can produce a fine aggregate having a constant granulation rate irrespective of the granulation rate of the raw stone, and can produce a fine aggregate having a low soil content.

The method for producing fine aggregate using raw stone according to the present invention for achieving the above objects is inputting raw stone for producing fine aggregate and inputting raw stone and fine aggregate selection step for selecting fine aggregate having a particle diameter of 6 mm or less, and separating the fine fine aggregate. And a step of manufacturing a green yarn or a plastered yarn to manufacture a green yarn or a plastered yarn having a particle diameter of 2 mm or less by separating the fine aggregate except for the solid yarn separated in the heavy yarn manufacturing step. Re-supplying the non-social water stage recovering the silt generated in the heavy sand manufacturing step and the green yarn or silt yarn manufacturing step and the silt recovered in the non-social water stage to the heavy sand manufacturing step and the green yarn or silt yarn manufacturing step A sludge treatment step of treating a mixture of water and sludge separated in the untreated material supply step and the non-social water step The green yarn or plastered yarn manufacturing step includes a second fine aggregate transfer step of transferring the water and the fine aggregate having a particle diameter of 2 mm or less through the second pump using a second pump, and the transferred water and particle diameter. The second aggregate cyclone is used to transfer the relatively light silt and sludge together with water by the centrifugation method using the second power cyclone. 2 the fine dust and sludge removal step, the second soil removal step of removing the soil powder on the fine aggregate by spraying fresh water to the fine aggregate particle diameter less than 2mm dropped from the second power cyclone, and the fine aggregate particle size less than 2mm The green yarn or plastered yarn is manufactured by transferring the second dehydration step of dehydration by vibration and the fine aggregate having the dewatered particle diameter of 2 mm or less. For open-air storage place is characterized in that the said predetermined consisting of green sand or non-business open-air storage step.

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At this time, the raw stone input and fine aggregate screening step, the raw stone input step for inputting the raw stone for manufacturing fine aggregate into the hopper, the raw stone transfer step for transferring the input raw stone, and the fine aggregate having a particle diameter of 6mm or less from the transferred raw stone It is composed of a fine aggregate screening step, the fine aggregate screening step is characterized in that it comprises a fresh water supply step of receiving fresh water from the sludge immersion tank.

In addition, the heavy sand manufacturing step, the first fine aggregate transfer step for transferring the water and the fine aggregate of 6 mm or less particle size and the fine aggregate of less than 6 mm particle size and 6 mm The first mass and sludge which are sent to the unsocial water apparatus by overflowing relatively light silt and sludge with water by the centrifugal separation method using the first power cyclone and dropping the relatively heavy fine aggregate into the first screen device with water. A first selection step of removing the fine aggregate having a particle diameter of 2 mm or less from the fine aggregate dropped from the first power cyclone in the first screen device, discharging the fine aggregate having a particle diameter of 2 mm or less, and selecting the fine aggregate having a residual particle diameter of more than 2 mm and 6 mm or less; Consists of heavy sand yard phase to transport selected fine aggregate to manufacture heavy sand And a gong.

At this time, the first selection step, the discharge step of discharging the fine aggregate having a particle diameter of 2mm or less of the fine aggregate dropped from the first power cyclone, and to remove the soil powder on the fine aggregate by spraying fresh water to the fine aggregate of less than 6mm less than the remaining particle diameter And a first dewatering step of dewatering the fine aggregate having a particle size of more than 2 mm and 6 mm or less from which the soil is removed, by vibration.

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In addition, the green yarn or plastering step manufacturing step, after the second soil removal step and the second dehydration step further comprises the step of sending the mixed with water dropped to the lower portion of the second screen device back to the second fine aggregate transfer step Characterized in that.

The unrefined water supply step includes a reclaimed water supplying step for receiving a mixture of water, silt and sludge generated in the heavy sand manufacturing step and the green sand or silt sand manufacturing step with the unrefined water supply device, and the received water, silt and sludge. The mass in the mixture is characterized in that it consists of a sludge discharge step to allow the sludge to sink in the lower portion of the micro-water device, the sludge is discharged with water.

In addition, in the silt material supply step, it is characterized in that it is possible to adjust the amount of silt supplied back to the heavy sand manufacturing step and the green yarn or unyarn yarn manufacturing step.

In addition, the sludge treatment step is a sludge settling step of precipitation by flocculating the sludge by a flocculant in the mixture of water and sludge introduced from the unsoaked water device, and a fresh water regeneration step to separate the water from the sludge to be recovered as fresh water and Characterized in that the sludge discharge step for discharging the sludge discharged.

According to the method for producing fine aggregate using the raw stone according to the present invention, by completely recovering the silt using the unsoaked water device, it is possible to significantly reduce the amount of sludge generated and at the same time improve the productivity of the fine aggregate and reduce the production cost. Has an effect.

In addition, according to the present invention not only can produce a fine aggregate having a constant granulation rate irrespective of the granulation rate of the gemstone, but also has the effect of producing a fine fine aggregate having a very low soil content.

Hereinafter, with reference to the accompanying drawings will be described in detail preferred embodiments of the method for producing fine aggregate using the gemstone according to the present invention.

2 is a conceptual view schematically showing an apparatus for producing fine aggregate using gemstones according to the present invention, and FIGS. 3 (a) and 3 (b) are front views showing a primary manufacturing unit and a non-social water device of the present invention shown in FIG. 2. And (a) and (b) are front and plan views showing a secondary manufacturing unit of the present invention shown in FIG. 2, and FIG. 6 is a cross-sectional view showing a first screen device of the apparatus for producing fine aggregate according to the present invention, and FIG. 7 is a block diagram showing a process for producing fine aggregate using raw stones according to the present invention.

In the present invention, in the production of fine aggregates such as heavy sand, green sand and miso sand using raw stones, the amount of sludge can be remarkably reduced by allowing the fine water to be completely recovered by using the non-social water device 400. The present invention relates to a method for manufacturing fine aggregate using raw stones which can improve the productivity of fine aggregates and reduce manufacturing costs. First, the fine aggregate production apparatus 10 using raw stones according to the present invention is largely as shown in FIG. The unit 100, the first manufacturing unit 200, the second manufacturing unit 300, the unsoaked water device 400 and the sludge settling tank 500 is configured.

In more detail, the raw stone input and sorting unit 100 serves to sort the fine aggregate having a particle size of 6mm or less by inputting the raw stone for manufacturing the fine aggregate transported by a transport means such as a dump truck, payloader, A hopper 110 for injecting the transported ore, a transfer conveyor 120 for transporting the ore introduced into the hopper 110 and a cylindrical sorter 130 for sorting fine aggregates having a particle diameter of 6 mm or less among the transported ore. It is configured to include.

At this time, the inside of the cylindrical sorter 130 is provided with a mesh 132 having a hole having a diameter of about 6mm to pass only the fine aggregate having a particle size of 6mm or less of the transported gemstones to transfer to the first manufacturing unit 200, the particle diameter The gemstones over 6mm are discharged to the outside through the outlet 134.

In addition, the cylindrical sorter 130 is connected to the water pump 140 to supply the fresh water (淸 水) through the fresh water supply pipe 150 from the fresh water tank 520 of the sludge settling tank 500 to be described later To facilitate the separation of the raw stones transported into the cylindrical sorter 130, to facilitate the scattering of dust generated during the transfer, and to remove foreign matters such as soil, etc. on the surface of the raw stones. It is desirable to.

Next, the first manufacturing unit 200 is to produce a fine yarn having a particle diameter of 6mm or less by separating the fine aggregate selected in the cylindrical sorter 130, the configuration of the primary supply pipe 210, the first supply unit ( 220), the first pump 230, the first power cyclone 240, the first overflow pipe 250, the first screen device 260 and the first conveyor 270.

In more detail, the primary supply pipe 210 is connected to the cylindrical sorting unit 130 of the raw stone input and sorting unit 100 is transported to the inside of the first manufacturing unit 200 with the selected fine aggregate with water. The first supply unit 220 serves to receive and store water and fine aggregates transferred through the primary supply pipe 210, and the first pump 230 is configured to store It is to serve to transfer to the first power cyclone 240 by pumping the fine aggregate and water stored in the first supply (220).

In addition, the first power cyclone 240 by using the centrifugal effect generated by the supply pressure of the first pump 230, by raising the silt and sludge with light specific gravity of the water and fine aggregates transported together with the water The first screen device by transferring to the unrestricted water system 400 to be described later through the overflow pipe 250, the relatively heavy residue aggregates rotate along the inner wall of the first power cyclone 240 with water It serves to fall to (260).

In addition, the first overflow pipe 250 is connected between the first power cyclone 240 and the non-social water device 400, and the silt and sludge raised by the first power cyclone 240 together with water. The first screen device 260 is installed in the lower portion of the first power cyclone 240 is dropped in the aggregate with the water from the first power cyclone (240). Passing the fine aggregate having a particle size of 2mm or less is transferred to the second manufacturing unit 300 to be described later, and serves to filter out the fine aggregate having a particle size of 6mm or less, more specifically, the fine aggregate having a particle size of 2 to 6mm.

On the other hand, the first screen device 260 is provided with a first screen net body 262 for sorting the fine aggregates having a particle size of 2mm or less and the fine aggregates having a particle size of 2-6mm among the fine aggregates dropped from the first power cyclone 240, The first screen mesh 262 is installed in the lower portion of the first power cyclone 240, the first mesh 262a is formed with a plurality of holes having a diameter of 2mm to pass the fine aggregate having a particle diameter of 2mm or less, and the first mesh 262a is installed to be connected to the 262a so as to dehydrate fine aggregates having a particle size of 2 to 6 mm filtered from the first mesh 262a and to be discharged through the first outlet 266 formed at one end of the first screen device 260. It consists of the 2nd mesh 262b. At this time, a plurality of holes having a diameter of 0.7 to 1.0 mm is formed in the second mesh 262b so that foreign matters such as soil powder, which is buried on the surface of fine aggregates by water sprayed from the first shower line 268 to be described later, are secondary. It is preferable to remove some of the fine aggregates having a particle size of 2 mm or less that do not pass through the first mesh 262a, and also to transfer the fine aggregates having a particle size of 2 to 6 mm. Do.

In addition, a first shower line that sprays water on the second mesh 262b of the first screen device 260 to remove foreign matters such as soil powder on the surfaces of the fine aggregates filtered by the first mesh 262a. 268 may be additionally installed, and the water sprayed by the first shower line 268 is configured to be drained by a plurality of holes formed in the second mesh 262b to dehydrate fine aggregates.

In addition, a first vibration device 264 having an elastic spring 264a is installed in the first screen device 260, and the first vibration device 264 vibrates the first screen mesh 262. In order to transfer the fine aggregates located on the upper portion of the second mesh 262b to the first discharge port 266 side of the first screen device 260, the fine aggregates serve to dehydrate water from the fine aggregates.

In addition, the first conveyor 270 removes foreign matters such as soil powder on the surface discharged through the first outlet 266 of the first screen device 260, and transfers fine aggregates having a particle diameter of 6 mm or less after dehydration treatment. After the post-treatment process, it plays a role of piling into heavy product.

Next, the second manufacturing unit 300 serves to manufacture green yarn or plastered sand by separating the fine aggregates, ie, fine aggregates having a particle diameter of 2 mm or less, except for the heavy yarns transferred from the first manufacturing unit 200. The secondary supply pipe 310, the second supply unit 320, the second pump 330, the second power cyclone 340, the second overflow pipe 350, the second screen device 360 and the Consists of two conveyors (370).

In more detail, the secondary supply pipe 310 includes fine aggregates having a particle diameter of 2 mm or less passed by the first mesh 262a installed in the first screen device 260 of the first manufacturing unit 200 together with water. It serves as a passage to transfer to the second manufacturing unit 300, the second supply unit 320 is to serve to receive and store the water and fine aggregates transported through the secondary supply pipe 310, The second pump 330 serves to transfer to the second power cyclone 340 by pumping the fine aggregate and water stored in the second supply part 320.

In addition, the second power cyclone 340 by using the centrifugal effect generated by the supply pressure of the second pump 330 by raising the silt and sludge with a light weight of sludge and light weight among the transferred water and fine aggregate together with the water Through the overflow pipe 350 to be transferred to the non-social water device 400, which will be described later, and the relatively heavy gravity aggregate is rotated along the inner wall of the second power cyclone 340 with water to the second screen device ( 360) is to fall.

In addition, the second overflow pipe 350 is installed between the second power cyclone 340 and the unrestricted water system 400 to raise silt and sludge raised by the second power cyclone 340 together with water. The second screen device 360 is installed in the lower portion of the second power cyclone 340 to the fine aggregate dropped with water from the second power cyclone 340. It passes through some silt or soil contained and serves to filter out fine aggregates of 2mm or less in diameter.

On the other hand, the second screen device 360 is provided with a second screen mesh 362 for filtering and dewatering the fine aggregate having a particle diameter of 2mm or less of the fine aggregate dropped from the second power cyclone 340, wherein the second In the screen net 362, a number of holes having a diameter of 0.7 to 1.0 mm are formed so that foreign matters such as soil powder, which is buried on the surface of fine aggregates, are discharged through the holes by water sprayed from the second shower line 368, which will be described later. It is desirable to be able to.

In addition, a second shower line 368 spraying water may be installed on the second screen net 362 of the second screen device 360 to remove foreign substances such as soil powder on the surface of the filtered fine aggregate. The water sprayed by the second shower line 368 may be drained by a plurality of holes formed in the second screen net 362 so that the fine aggregate can be dehydrated.

In addition, a second vibration device 364 having an elastic spring 364a is installed in the second screen device 360. The second vibration device 364 vibrates the second screen mesh 362 by vibrating the second screen network 362. In order to transfer the fine aggregates located on the upper portion of the second screen mesh 362 to the second discharge port 366 side of the second screen device 360, and serves to dehydrate water from the fine aggregates.

In addition, the second conveyor 370 may remove fine particles having a particle diameter of 2 mm or less in a state in which foreign matters such as soil powder, which are buried on the surface discharged through the second outlet 366 of the second screen device 360, are removed and dehydrated. After transporting, it processes through the post-treatment process and piles it into green yarn or plastered products.

Next, the non-social water device 400 is connected by the first manufacturing unit 200 and the second manufacturing unit 300 and the first overflow pipe 250 and the second overflow pipe 350 is installed first It is to serve to recover the silt and sludge generated in the manufacturing unit 200 and the second manufacturing unit 300 together with the water. That is, as described above, the specific gravity that is increased by the centrifugation effect generated in the first power cyclone 240 and the second power cyclone 340 of the first manufacturing unit 200 and the second manufacturing unit 300 is increased. Light silt and sludge are transferred to the unrestricted water device 400 through the first overflow pipe 250 and the second overflow pipe 350 together with water for treatment.

The micro water purification apparatus 400 includes an outer cylinder 410 including a cylindrical inlet 414 having a sludge outlet 412 and a conical silt discharge 416 formed at a lower portion of the inlet 414. An inner cylinder 420 formed to be spaced apart from the outer cylinder 410 by a predetermined distance inside the inlet 414 of the outer cylinder 410, and the silt discharge port 416 of the outer cylinder 410 and the first manufacturing unit 200. A first pipe 430 connected between the first supply and reception unit 220 and a second pipe connected between the second supply pipe 310 of the silt discharge port 416 and the second manufacturing unit 300 ( 440).

That is, the silt and sludge transported together with the water through the first overflow pipe 250 and the second overflow pipe 350 flows into the inside of the unrestricted water device 400, wherein the first overflow pipe At the ends of the 250 and the second overflow pipe 350, two or more branched first curved pipes 252 and second curved pipes 352 formed in a wing shape are connected to be inclined downward. Water and sludge containing the silt flowing into the inner surface of the micro water-repelling apparatus 400 to the inner wall of the inner cylinder 420 to the wing structures of the first curved pipe 252 and the second curved pipe 352. It is introduced while rotating into the inner cylinder 420, so that the silt easily sinks to the lower side. In addition, the lower portion of the outer cylinder 410 is composed of a conical silt discharge port 416 serves to ensure that the mass descending to the lower portion of the outer cylinder 410 along the inner cylinder 420 can be collected well.

On the other hand, the sludge introduced into the inner surface of the micro-water device 400 together with the silt flows into the space formed between the outer cylinder 410 and the inner cylinder 420 together with the water is formed outside the inlet 414 of the outer cylinder 410 It exits through the sludge outlet 412.

In addition, the silt collected at the silt discharge port 416 is re-supplied to the first manufacturing unit 200 and the second manufacturing unit 300 through the first pipe 430 and the second pipe 440 to be sanded and It is configured to be used again to manufacture green yarn or plastered yarn, wherein the first pipe 430 and the second pipe 440 is supplied back to the first manufacturing unit 200 and the second manufacturing unit 300 It is preferable to install the first control valve 432 and the second control valve 442 that can adjust the amount of silt so as to adjust the assembly rate of the heavy yarn and the production amount of green yarn or silt yarn.

Next, the sludge settling tank 500 serves to treat water including sludge separated from the silt in the unresolved water device 400, and its configuration is composed of a settling tank 510 and a fresh water tank 520.

In more detail, the sedimentation tank 510 is discharged to the sludge discharge port 412 of the US water system 400 to add a flocculant to the mixture of water and sludge introduced through the sludge discharge pipe 450 to coagulate the sludge It is to play a role to settle, the fresh water tank 520 is to take water except the sludge aggregated and precipitated in the settling tank 510 is to play a role to be recycled to fresh water and recycled.

At this time, a fresh water supply pipe 150 is connected between the fresh water tank 520 and the cylindrical sorter 130 of the raw material input and sorting unit 100 to connect the fresh water regenerated in the fresh water tank 520 to the water pump 140. By supplying to the cylindrical sorter 130 using a) it is preferable to be able to utilize to remove the foreign matter such as soil powder attached to the surface of the raw stones transferred to the cylindrical sorter 130 primarily.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the method for producing fine aggregate using the gemstone according to the present invention.

The method for producing fine aggregate using raw stone according to the present invention is composed of raw material input and fine aggregate selection step, heavy sand manufacturing step, green yarn or silage yarn manufacturing step, non-social water step, silt resupply step and sludge treatment step. , The raw material input and fine aggregate selection step is a step for inputting the raw stone for the production of fine aggregate and the fine aggregate having a particle size of 6mm or less, and the step of manufacturing a heavy sand is a step for separating the selected fine aggregate to produce a heavy sand of 6mm or less particle size The green yarn or miso yarn manufacturing step is a step for producing green yarn or miso yarn having a particle diameter of 2mm or less by re-separating the fine aggregate except the heavy sand separated in the heavy sand manufacturing step, and the non-social watering step for the heavy sand manufacturing step and This is a step for recovering the silt including sludge generated in the manufacturing process of green sand or silt sand. A step for resupplying the silt recovered in the non-social water stage to the heavy sand manufacturing step and the green sand or the unsalted sand manufacturing step, and the sludge treatment step is a step for treating a mixture of water and sludge separated in the non- social water stage. to be.

Hereinafter, the steps will be described in more detail.

First, when the raw material input and fine aggregate screening step will be described in detail, the raw material for manufacturing the fine aggregate that has been transported by using a transport equipment such as a dump truck or payload is input to the hopper 110. Thereafter, the raw stone introduced through the hopper 110 is transferred through a transfer conveyor 120 (stone transfer step), and the net body 132 installed inside the cylindrical sorter 130 by being introduced into the cylindrical sorter 130. The fine aggregates having a particle size of 6 mm or less are selected from the raw materials transferred, and the raw stones having a particle size larger than 6 mm are discharged to the outside through the outlet 134. (Residual aggregate screening step) In this case, the fine aggregate screening step is a sludge settling tank (500). Receiving fresh water regenerated in the fresh water tank 520 of the water) by the water pump 140, fine aggregates having a particle size of less than 6mm is easily separated with water through the mesh 132, the table of the raw stone transported It is desirable to be able to remove foreign matters such as soil, etc. adhering to cotton first.

Next, the fine aggregate having a particle size of 6 mm or less separated as described above is transferred to the first supplying part 220 of the first manufacturing part 200 through the primary supply pipe 210 together with water, and then proceeds to the heavy sand manufacturing step. First, the fine aggregate having a particle size of 6 mm or less, which is transferred to the first receiving part 220, is raised together with water by the first pump 230 and is supplied to the first power cyclone 240. As such, the silt and sludge having a smaller weight among the fine aggregates supplied to the first power cyclone 240 are centrifugal effect generated inside the first power cyclone 240 by the supply pressure of the first pump 230. Ascends with the water by the first overflow pipe 250 and is transferred to the micro water system 400 through the first overflow pipe 250, the relatively heavy fine aggregate is lowered down the inner wall of the first power cyclone 240 to the first with water It is dropped to the screen device 260. (First silt and sludge removal step) Then, the first Some of the fine aggregate having a particle size of 2 mm or less among the fine aggregate dropped into the screen device 260 is discharged through the first net 262a among the first screen nets 262 installed in the first screen device 260 to manufacture the second. The fine aggregate, which is supplied to the unit 300 and has a particle diameter of 6 mm or less, that is, a particle diameter of 2 to 6 mm, is filtered out by the first screen net body 262 to be screened (first screening step). The discharging step of discharging the fine aggregate having a particle diameter of 2 mm or less among the fine aggregate dropped from the first power cyclone 240 by using the first mesh 262a among the first screen nets 262 and the first screen apparatus 260. The first soil removal step and the second soil to remove the soil in the fine aggregate less than the particle diameter of 6mm filtered by the first mesh 262a by using fresh water sprayed through the first shower line 268 installed in the) The first vibration device 264 having an elastic spring 264a installed in the first screen device 260 is provided. By the same by vibrating the first screen net body 262 is configured to include a first dehydration step of dehydrating the tobun fine aggregate is removed. At this time, the silt contained in the water dropped through the second net 262b of the first screen net 262 in the first soil removal step and the first dehydration step is accommodated in the first water supply unit 220, the first pump It is preferable to be able to be used again in the first fine aggregate transfer step by being pumped by 230 to lower the loss rate of silt.

As such, the fine aggregate having a particle diameter of 6 mm or less completed until dehydration is discharged through the first outlet 266 of the first screen device 260, and is transported by the first conveyor 270 to be manufactured in heavy sand, and at a certain place. This is the production of heavy yarns.

Meanwhile, the fine aggregate having a particle size of 2 mm or less discharged through the first mesh 262a among the first screen meshes 262 in the manufacturing process of the heavy sand is made of the second manufacturing unit 300 through the secondary supply pipe 310. 2 is supplied to the supply unit 320 to enter the green yarn or plastering company manufacturing step, the green yarn or plastering company manufacturing step is made as follows.

First, the fine aggregate having a particle size of 2 mm or less, which is transferred to the second receiving part 320, is raised together with water by the second pump 330 and is supplied to the second power cyclone 340. Similarly, the silt and sludge having a smaller weight among the fine aggregates supplied to the second power cyclone 340 may be caused by the centrifugal effect generated inside the second power cyclone 340 by the supply pressure of the second pump 330. Ascends with the water and is transferred to the micro water system 400 through the second overflow pipe 350, and the relatively heavy fine aggregate descends on the inner wall of the second power cyclone 350 to descend along with the water. (2nd silt and sludge removal step) Then, the second screen network 362 by spraying fresh water using the second shower line (368) installed in the second screen device (360). To remove the soil on the fine aggregate less than 2mm in diameter (2nd soil removal step), the soil is removed by operating the second vibrating device 364 having the elastic spring 364a installed in the second screen device 360 to vibrate the second screen mesh 362 Dehydrate the fine aggregate (second dehydration step).

As such, the fine aggregate having a particle diameter of 2 mm or less completed until dehydration is discharged through the second discharge port 366 of the second screen device 360, and is transported by the second conveyor 370 to be manufactured as green yarn or plastered sand. It is filled in place (green yarn or plasterer stage) and manufacturing of green yarn or plasterer is completed.

At this time, the green yarn or plastered yarn manufacturing step passes through the second screen net body 362 after the second soil removal step and the second dehydration step, that is, the second supply unit 320, the lower portion of the second screen device 360 It is preferable to minimize the loss rate of the silt by allowing the silt mixed with the water dropped into the second fine aggregate to be transferred to the second power cyclone 340 using the second pump 330. .

On the other hand, the silt and sludge removed in the first silt and sludge removal step and the second silt and sludge removal step of the heavy sand manufacturing step and the green yarn or plastered sand manufacturing step, the first overflow pipe 250 and the second overflow With the water through the pipe 350 is recovered to the US water system 400, which will be described in detail in the US water stage as follows.

First, the first overflow pipe 250 and the first is mixed with the silt and sludge water is transferred to the micro water system 400 through the first overflow pipe 250 and the second overflow pipe 350 2 is discharged to the inner wall of the inner cylinder 420 through the first curved pipe 252 and the second curved pipe 352 of the curved pipe shape formed to be inclined downward by two or more branches at the end of the overflow pipe 350 And supplied to the inside of the unsocial water supplying device 400 (unreceived supply and demand stage). At this time, the water and sludge, including the silt flowing into the inner surface of the unrestricted water device 400 and the inner cylinder by the wing structure of the first curved pipe 252 and the second curved pipe 352 and the structure installed to be inclined downward. Rotating into the inside of the 200, the mass is easily settled to the lower side. In addition, the lower portion of the outer barrel 410 of the unsupervised water device 400 is composed of a conical silt discharge port 416 serves to collect the mass to descend to the lower portion of the outer cylinder 410 along the inner cylinder 420. .

In addition, the sludge introduced into the inside of the unrestricted water system 400 together with the silt is relatively lighter than the silt, so that the sludge flows into the space formed between the outer cylinder 410 and the inner cylinder 420 together with the water by the continuous inflow of water. And it exits through the sludge discharge port 412 formed outside the inlet 414 of the outer cylinder 410 (sludge discharge step).

On the other hand, the mass supplied to the bottom of the conical silt discharge port 416 formed in the lower portion of the unsupervised water supply unit 400 as described above is re-supplied to the heavy sand manufacturing step and the green yarn or silage manufacturing step through the mass resupply step, In more detail, the non-smooth water device through the first pipe 430 connected between the silt discharge port 416 of the unsoaked water device 400 and the first supply unit 220 of the first manufacturing unit 200. By re-supplying the recovered silt to the first supply unit 220 to be pumped by the first pump 230, the recovered silt may be used again in the manufacturing process of heavy sand or the silt discharge port 416. Supply the recovered mass to the second water supply pipe 210 through the second pipe 440 connected between the second supply pipe 310 of the second manufacturing unit 300 and the second water supply device 210. Green yarn or fine that was recovered by being pumped by the second pump 230 To allow re-use in manufacturing.

In addition, it is also possible to minimize the amount of silt lost by repeating the above-mentioned silt re-supply step several times.

The first pipe 430 and the second pipe 440 are respectively provided with a first control valve 432 and a second control valve 442 to provide a first pipe 430 or a second pipe 440. By controlling the amount of silt re-supplied with water, it is possible to adjust the assembly rate of the heavy sands produced at the middle stage of manufacturing, or to control the production amount of green yarns or silt yarns produced at the stage of manufacturing green yarn or silt yarn. desirable. That is, by adjusting the first control valve 432 to reduce the amount of silt re-supplied to the first pipe 430, the assembly rate of the heavy yarn can be made more constant, and the second control valve 442 is adjusted to adjust the amount of silt. Increasing the amount of silt supplied to the second pipe 440 may increase the production of green yarn or plastered sand.

Finally, the sludge treatment step of treating the sludge by discharging the sludge separated from the silt in the non-social water step together with water to the sludge discharge port 412 and transported to the sludge settling tank 500 through the sludge discharge pipe 450. Is as follows.

The sludge discharged from the unsoaked water device 400 is transferred to the sedimentation tank 510 of the sludge sedimentation tank 500 together with water through the sludge discharge pipe 450. First, a flocculant is introduced into a mixture of the water and the sludge transferred. Precipitate by flocculation (sludge settling step). At this time, when the sludge contains a large amount of silt, it is difficult to precipitate the sludge because the sludge is not smoothly aggregated, but in the present invention, the silt loss is minimized as described above, so that the sludge is smoothed. do. The water is separated from the sludge thus precipitated and sent to the fresh water tank 520 to be regenerated with fresh water (fresh water regeneration step). After separating the water as described above and discharge the sludge precipitated in the sedimentation tank 510 to the outside (sludge discharge step) is to complete the fine aggregate production method using the raw stone according to the present invention.

Therefore, according to the method for producing fine aggregate using the raw stone according to the present invention configured as described above, the amount of sludge can be remarkably reduced by completely recovering the silt using the non-social water device, and thus operating the fine aggregate producing device for a long time. Not only can it improve the productivity of fine aggregates and reduce manufacturing costs, but it can also produce fine aggregates with a certain assembly rate regardless of the rate of assembling of gemstones, and the soil content is very low through repeated fresh water washing. There are various advantages such as to produce good fine aggregate.

Although the above embodiments have been described with respect to the most preferred examples of the present invention, it is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications are possible without departing from the technical spirit of the present invention.

The present invention relates to a method for producing fine aggregate using gemstones, and more particularly, to produce fine aggregates such as heavy sand, green yarn, and plastered sand using gemstones, so that the silt can be completely recovered using a non-social water device. The present invention relates to a method for producing fine aggregate using raw materials, which can significantly reduce the amount of sludge produced and at the same time improve the productivity of fine aggregate and reduce manufacturing costs.

1 is a block diagram showing a conventional aggregate production process.

2 is a conceptual view schematically showing an apparatus for producing fine aggregate using gemstones according to the present invention;

3 (a) and 3 (b) are a front view and a plan view showing a primary manufacturing unit and a non-social water device in the present invention shown in FIG.

4 (a) and 4 (b) are a front view and a plan view of a secondary manufacturing unit of the present invention shown in FIG. 2;

Figure 5 is a cross-sectional view showing a non-social water device of the fine aggregate production apparatus according to the present invention.

Figure 6 is a cross-sectional view showing a first screen device of the aggregate production apparatus according to the present invention.

Figure 7 is a block diagram showing a fine aggregate production process using the gemstone according to the present invention.

Explanation of symbols on the main parts of the drawings

10: fine aggregate production apparatus 100: raw stone input and sorting unit

110: hopper 120: transfer conveyor

130: cylindrical sorter 140: water pump

150: fresh water supply piping 200: the first manufacturing department

210: primary supply piping 220: first supply

230: first pump 240: first power cyclone

250: first overflow pipe 260: first screen device

270: first conveyor 300: second manufacturing unit

310: secondary supply piping 320: second supply

330: second pump 340: second power cyclone

350: second overflow pipe 360: second screen device

370: second conveyor 400: non-social water system

410: outer cylinder 420: inner cylinder

430: the first pipe 440: the second pipe

450: sludge discharge pipe 500: sludge settling tank

510: sedimentation tank 520: fresh water tank

Claims (21)

delete delete delete delete delete delete delete delete delete delete delete delete Inputting raw materials for producing fine aggregates and inputting raw materials and fine aggregates selecting screens for fine aggregates having a particle diameter of 6 mm or less; A heavy sand manufacturing step for separating the selected fine aggregate to produce a heavy sand having a particle diameter of 6 mm or less; A green yarn or plastered yarn manufacturing step for manufacturing green yarn or plastered yarn having a particle diameter of 2 mm or less by separating the fine aggregate except the heavy yarn separated in the heavy yarn manufacturing step, A non-social water step of recovering the silt generated in the heavy sand manufacturing step and the green yarn or the unsalted yarn manufacturing step; The silt supply step of resupplying the silt recovered in the non-social water phase to the heavy sand manufacturing step and the green yarn or the silt manufacturing step; It comprises a sludge treatment step of treating a mixture of water and sludge separated in the non-social water stage, The green yarn or plastered yarn manufacturing step, The second fine aggregate transfer step of transferring the water and the fine aggregate particle size of 2mm or less through the second sand manufacturing step using a second pump, and the centrifugal separation method using the second power cyclone to transfer the fine water aggregate and water of less than 2mm particle size Second silt and sludge removal step of sending the relatively light silt and sludge together with water to the unsocial water device and dropping the relatively heavy fine aggregate together with the water to the second screen device; and dropping from the second power cyclone A second soil removal step of removing soil powder from fine aggregates by spraying fresh water on fine aggregates having a particle diameter of 2 mm or less, and a second dehydration step of dewatering fine aggregates having a particle size of 2 mm or less from vibrations by vibration and a particle diameter of 2 mm or less. Green yarn or plasterer yard to manufacture green yarn or plasterer by transporting fine aggregates Fine aggregate production method using the stones, characterized in that consisting of. The method of claim 13, The raw material input and fine aggregate screening step, the raw stone input step for inputting the raw stone for manufacturing fine aggregate into the hopper, the raw stone transfer step for transferring the input raw material, and fine aggregate screening to sift fine aggregates of 6 mm or less in the grain size Composed of steps, the fine aggregate screening step is fine aggregate production method using the raw stone, characterized in that it comprises a fresh water supply step of receiving fresh water from the sludge immersion tank. The method of claim 13, Said heavy manufacturing step, The first fine aggregate transfer step of transferring water and fine aggregates having a particle size of 6 mm or less, and the fine aggregates having a particle size of 6 mm or less, and the centrifugal force using the first power cyclone A first silt and sludge removal step of sending a relatively light silt and sludge together with water by a separation method and sending the relatively heavy fine aggregate to a first screen apparatus with water; and the first screen. The apparatus discharges the fine aggregate having a particle size of 2 mm or less among the fine aggregates dropped from the first power cyclone, discharges the particle size of 2 mm or less, and transfers the first screening step and the selected fine aggregate to remove the fine aggregate having a particle size of more than 2 mm and less than 6 mm. Cup using gemstones, characterized in that consisting of heavy and dead stages to manufacture and place in a certain place Aggregate manufacturing method. The method of claim 15, The first selection step, The discharge step of discharging the fine aggregate having a particle diameter of 2mm or less among the fine aggregate dropped from the first power cyclone, and the first soil removal step and the soil removal to remove the soil on the fine aggregate by spraying fresh water to the remaining aggregate having a particle diameter of more than 2mm and less than 6mm The fine aggregate production method using the raw stone, characterized in that it comprises a first dewatering step of dewatering the fine aggregate having a particle diameter of more than 2mm 6mm or less by vibration. delete The method of claim 13, The green yarn or plastered yarn manufacturing step, After the second soil removal step and the second dehydration step, the fine aggregate production method using the raw stone, characterized in that further comprising the step of sending the mixed with the water dropped to the lower portion of the second screen device back to the second fine aggregate transfer step. The method of claim 13, The non-social tree stage, A non-supply supply step of supplying a mixture of water, silt, and sludge generated in the heavy sand manufacturing step and the green sand or silage sand manufacturing step to a microsocial water device; The method for producing fine aggregate using raw stones, characterized in that the mass of the water and the mixture of silt and sludge soaked in the lower portion of the unsoaked water device, the sludge is discharged together with water. The method of claim 13, The fine aggregate manufacturing method using the raw stone, characterized in that in the step of supplying the silt, it is possible to adjust the amount of the sils supplied to the manufacturing step and the green yarn or non-silk yarn manufacturing step. The method of claim 13, The sludge treatment step is a sludge precipitation step of precipitation by flocculating the sludge by a flocculant in the mixture of water and sludge introduced from the unsoaked water device, and a fresh water regeneration step and sedimentation so that the water can be recovered from the sludge to be recovered as fresh water Fine aggregate production method using the raw stone, characterized in that consisting of the sludge discharge step for discharging the sludge.

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