KR200311094Y1 - Manufacturing method and apparatus for recycle sand exploiting construction waste concrete - Google Patents

Abstract

The present invention relates to an aggregate production apparatus suitable for the construction waste treatment and the production of recycled fine aggregate for concrete ready-mixed concrete (collected sand made by extracting aggregate from waste concrete is referred to as recycled fine aggregate hereinafter). According to the present invention, in the manufacture of three aggregates for natural construction by crushing, crushing, and peeling the coarse aggregate, three aggregates, and cement mortar constituting the waste concrete from which soil powder and foreign substances are removed, the apparatus is constructed waste. Raw materials are put into the feed hopper and the waste concrete and soil are filtered through the primary dry screen to remove foreign substances such as soil powder and supplied to the belt to transport large foreign substances such as waste wood, plastic, waste ascon After repairing, supply the waste concrete, which was primarily broken with a compression type crusher, to the feeder, remove the second foreign matter with the 와, and remove the first magnetic material with the magnetic separator, and then filter the soil, etc. again with the second dry screen. Putting into a shooting machine through a charity We remove dehydrated 4th foreign matter by wet, and put into a 2nd compression type crusher In the process of supplying with the feeder, the 4th foreign material is removed with the cloth and the 2nd magnetic material is removed with the charity. This crushed material is removed from the magnetic material with a tertiary charity and, if necessary, discharged and stored as three kinds of aggregates as intermediate products by using a conversion short wave, or put into a wet screen and filtered to remain on the top of the screen. Particles passed back to the crusher, and the remaining particles passed on the bottom screen were removed by the 5th foreign matter with a 후 and then crushed by the roll crusher. After removing the magnetic material with the 4th charity, the crusher was put into the impact crusher. Slurry that is passed through the bottom of the filter 5mm or less is sent to the Multiple Classifier for classification.

The processed fine aggregate, finely divided sludge and fine foreign matter are classified into sludge turbid water by regenerating fine aggregate sludge of 5 mm or less in the slurry state, and the fine aged aggregate is dehydrated and discharged into recycled crushed sand product, and the sludge turbidity is sent to the thinner to coagulant. Aggregate and settle the sludge to be stored in the storage tank is drawn by a predetermined amount and dewatered by filterless to make a cake to discard.

Description

{Manufacturing method and apparatus for recycle sand exploiting construction waste concrete}

The present invention relates to a recycled fine aggregate manufacturing apparatus for manufacturing fine aggregates for civil engineering and construction using waste concrete, which is a construction waste, and in particular, residues from which foreign substances such as soil, steel, plastic, and wood are removed using construction wastes. Waste concrete, which is the main material, is composed of coarse aggregate, fine aggregate (sand) and cement mortar, and it is a high quality recycled fine aggregate (recycling recycled from waste concrete). Sand).

In general, there are dry and wet treatment methods in the prior art, and the dry process is a process of removing impurities such as soil, iron, wood, vinyl, plastic, paper, etc. contained in the waste concrete to date, and secondarily dry compression and dry screening. It is made of crushed materials of large and small concrete to the degree of filtering by the back, and is of quality enough to be used for road pavement mixed aggregate and backfilling.

There are Korean Utility Model Registration No. 20-0202906 and Registration No. 20-0236037, Patent Publication No. 2000-0058365 and Patent Publication No. 2001-0106385 as domestic prior arts. It cannot be used for ready-mixed concrete as it does not leave the seat category. In addition, the utility model registration No. 20-0236037 and the Utility Model Registration No. 20-0219931 and the Republic of Korea Patent Registration No. 10-0277280 as a dry and wet mixing method, but these methods are entirely or partially on the screen This method is a method of impacting a part of concrete once, so it is not possible to completely peel off the cement mortar by impacting a part of concrete once, so its specific gravity is low and its absorption rate is high so that it cannot satisfy the KS standard value, and also the classification treatment of aggregate and sludge and turbid water The post-processing method of is omitted, so it is not a consistent method.

As an example of the prior art, a method of manufacturing recycled aggregate based on construction waste as a process diagram of FIG. 1 disclosed in Korean Patent Laid-Open Publication No. 2002-0042569 is described as a prior art. The first belt magnet charity that removes magnetic materials such as iron type during conveyance to remove foreign substances of raw materials supplied to hopper and vibration feeder (01) for inputting raw materials such as waste concrete and stone powder 02) Fan (03-1) device to remove the foreign substances scrap and vinyl in the wind in the process of dropping the waste concrete from the magnetic material removed from the belt; A sorting machine (04) for removing foreign substances using buoyancy of water from the waste concrete raw material from which foreign substances have been removed by wind and wind; And a dehydration device (05) for removing the water of the waste concrete that has been shot; and the waste concrete crushed by the hydraulic short-head compactor (06), which is a first compression crusher (6) for crushing the dehydrated waste concrete raw material. The upper part of the filter is dry and separated by a rubber plate at the middle, and the lower part of the composite first vibrating screen (07), which is a sprinkler, and the particles that have passed through the upper screen screen of the first vibrating screen are first compressed crushers (06) Particles that have been crushed again, and passed through the screen net, are transferred to the belt by the second charcoal (03-2) during the transfer to the belt. (Belt Magnet) (08); and the particles of the secondary magnetic material removed by the impact using a centrifugal force to hit the metal plate, broken, worn, and sharpened by using the action of the first crushed and polished peeling stones and me Vertical shaft impact (09) of the Rock on Metal type; and the first vibrating screen for wet filtering with primary disintegration and abrasion at the bottom of the first vibrating screen. (07); and a dewatering device (10) for removing turbid water and dewatering the particles having passed through the bottom screen of the first vibrating screen; and the coarse particles remaining on the screen at the bottom of the first vibrating screen and passing through the screen. Vertical shop impactor made of stone and rock type using the principle that stone and stone are collided, shattered, and worn out with excellent peeling effect in the combination of dewatering and three dehydrated particles. Stone and stone impact abrasive polish remover 11 for secondary polishing removal with a verticalshaft impact 10; and secondary crushed polishing peeling to be placed on top of the second wet vibrating screen 12 5mm to 8mm With screen net In the third stage (03-3), the first wet vibration vibrating screen 12 and the second wet vibration vibrating screen 12 are filtered through the screen of 1 mm to 5 mm and the bottom of the second wet vibrating screen. A third impact type abrasive peeler 13 for removing and removing the foreign matter after the removal of the foreign matter by the wind; A second wet vibrating screen (12) filtering the screen netting 4mm to 6mm in a wet type, which has been subjected to tertiary grinding and peeling to the lower screen; A multiple classifier (14) classifier (14) for comprehensively classifying recycled fine aggregate, sludge, and foreign matter in the slurry state of particle size passing through the bottom of the second vibration screen; A dump for discharging and storing the particles of 4 mm or more and 20 mm or less passed through the bottom of the second wet vibration screen as regenerated coarse aggregate products;

The multiple classifier (14) classifier (14) is a dehydrator by scraping up and assemble 150 mesh (mesh) to 200 mesh or more in slurry slurry water of 4mm to 6mm particle size slurry conveyed from the wet second vibrating screen A classifier (14) made of a bucket wheel to be introduced into the classifier (14); and a foreign material remover (15) for removing foreign substances floating in the tanker tank; A conversion short wave 18 device for directly sending the turbid water to the chicna, or sending the turbid water to a hydrocyclone, if necessary; A heterocyclone (17) device having a classification point of 200 mesh for separating three particles of 200 mesh or more and sludge of 200 mesh or less transferred through the slurry pump and the conversion short wave 18; Vibration dehydrator 16 for dehydrating the combined aggregate of more than 150 mesh of 4 to 6 mm or more and three or more particles of 200 mesh classified in a hydrocyclone classified in a multiple classifier classifier 14; A dump for storing a particle size of not less than 200 mesh and not more than 6 mm dehydrated in a dehydrator as recycled sand products;

The sludge turbid water remaining after separating the tenants from the hydrocyclone (17) is treated with an automatic device for automatically dosing the polymer coagulant drug transported to Sichna (19), and purified by flocculating sedimentation and purification. Water is chicna 19 is a device that can be recovered and reused; A furnace 20 for transporting and storing the coagulated precipitated sludge using a slurry pump and a pipe; It is composed of a large-capacity filter press 21 of a membrane type or a chamber type, which extracts and stores dehydrated farm sludge by a predetermined amount.

However, the recycled aggregate manufacturing apparatus as described above has the following problems.

first. This method is a manufacturing process in which construction wastes are partially removed from soil and foreign substances, crushed with crusher and concrete crusher, and then filtered through dry and processed by using intermediate raw material which is firstly processed to a certain size (less than about 40mm). Untreated construction waste cannot be treated.

second. This method is mainly processed by V.S.I.Impact, so the crushing efficiency is low, and the productivity is low, and it is good as a method of making recycled coarse aggregate and fine aggregate at the same time, but there is a problem that only high recycled fine aggregate can be made.

third. Due to the characteristics of recycled aggregates in waste concrete, tenants are classified and recovered using hydrocyclone to be used as fine granules for fine aggregates. However, the fine particles between 100 and 200 mesh contain a large amount of foreign substances such as fine pieces of wood and fine particles of cement mortar. Use has a problem that the quality is degraded.

The present invention has been made to solve the above problems, and has the following object.

first; Unlike the conventional prior art manufacturing method and apparatus to provide a recycled fine aggregate production apparatus using construction waste that can process the soil and foreign matter removal of the construction waste and the first and second treatments in one process at the same time have.

second; As it is not easy to remove the cement mortar from the waste concrete, it is a compression method to increase the compression crushing efficiency and use the impact type to enhance the peeling effect of the grinding. The cement mortar is almost completely removed and recycled aged aggregate (sand) like the natural state. The only way is to add value by making bays.

third; High efficiency crushing and quality at low cost by using a roll crusher that compensates for the problem of the vertical shaft impact crusher, which is an impact crusher, which does not crush, but the large particles are worn out and rotated continuously. In addition, the present invention provides an apparatus for manufacturing recycled fine aggregate using construction waste, which can reduce production costs by producing high quality recycled fine aggregate in an efficient and efficient process.

fourth; It is to provide an apparatus for manufacturing recycled aggregate for construction that can reduce the production cost and lower the construction cost of the plant according to the production unit by treating the primary and secondary treatment processes in a single process.

fifth; In order to completely remove foreign matters, it is to provide recycled fine aggregate manufacturing apparatus using construction waste which can be environmentally treated by the effective complete removal of foreign matters such as magnetic screening, wind power removal and wet and dry.

1 is a process flow diagram for producing recycled aggregate from the conventional construction waste (waste concrete),

Figure 2 is a schematic diagram showing the overall structure of the apparatus for producing recycled fine aggregate using the construction waste according to the present invention

3 is a schematic diagram for producing recycled fine aggregate using construction waste according to the present invention.

Figure 4 is a roll crusher structure of two stages of crushing by hydraulic four-roll crushing in accordance with the present invention.

Figure 5 is a structure of the sorting machine and bag dewatering device to remove the foreign matter wet.

Figure 6 is a rock and metal type vertical rock impact impact crusher (impact V. S. I.) of the aggregate and cement mortar crushing and peeling according to the present invention

7 is a structure diagram of a multiple crash fire (Multiple Classifier) and bag dewatering and turbidity transfer device for the classification of regenerated sand and sludge and fine foreign substances in the recycled fine aggregate manufacturing apparatus of the present invention

* Explanation of symbols for main parts of the drawings

01--.Hid Hopper 02--.Vibration Feeder

03--. Dry Screen 04--Compress Crusher Jaw Crusher

M1--.Belt Magnet F1---Wind Separator 휀

07--.Sorting 10- -.Compressor Crusher (Crusher or Double Jaw)

13-.. Wet Vibration Screen 14- -.Hydraulic 4 roll crusher

15--.Vertical shaft impactor crusher

16-Multiple Crash Fire (Multiple Classifier)

19--. Thickener 22--. Filter press

Regenerated Aggregate Aggregate Production Equipment using the construction waste of the present invention for achieving the above object is a hopper (01) and vibration feeder (02) to input and store the raw material of the construction waste; A dry screen (03) for first removing soil powder from a raw material supplied from the vortex feeder (02) with a two-stage dry vibration screen having a scale of 100 mm to 200 mm and a scale of 20 mm to 50 mm at the lower end; and the dry screen Jaw crusher (04) which is a compacted crusher to remove the foreign matter by the water line (手 로) during transportation to the conveyor to remove the soil powder from the first crusher; Whistle (05) for supplying the crushed waste concrete to the belt and the char (F1) for removing the secondary foreign matter by the wind in the process of supplying and belt charity (M1) for removing the magnetic material; and the belt charity (2) a second dry screen (06) which removes the second soil again by combining foreign matter removed with the bottom of the dry screen (03) and the second screen; F (F2) and magnetic separator (M2) for removing magnetic material by magnetic force; and wetted by sorting (07), a wet foreign material remover, to remove foreign substances such as soil, magnetic material, etc. Dehydrator (09) for dehydrating the removal of foreign matter by the floating technique; and a dewatering device (08) consisting of a dehydrator (08) for dehydrating the moisture of the waste concrete intermediate material in which the foreign matter was removed by wet; and the second compression type after dewatering the intermediate raw material Shredder (10) a cone crusher or a double jaw crusher; and a third compression crusher 12 for transporting and crushing the second crushed in the step to the feeder 11 to the B6 belt; and the third crushed After removing the magnetic material with the car charity (M3), the wet vibration screen is equipped with a 13mm to 17mm screen, and the bottom is a 4mm to 6mm screen with a two-stage wet type that is inserted into the wet vibration screen equipped with a water spray device. Vibration screen (13); and in the step of filtering the residue passed on the top of the screen is sent to the sorting machine (07) to reprocess and remove the foreign matter once again by the wind to remove the foreign matter passed through the third stage (F3) Roll crusher 14 to compressively crush 4mm to 6mm or less in the roll crusher to crush in two stages using the four rolls to remove the foreign matter in the third 휀; and transferred after crushing in the step To the magnetic material with the fourth charity (M4) A vertical shaftimpact crusher (15), which is a rock-on-matal type grinding machine that has a grinding and peeling effect due to the stone hitting the anvil by centrifugal force after removal; In the step above, the abrasives were removed by the vertical shop impact crusher (15), and the improved shape was transferred to the bottom of the wet vibrating screen (13). Multiple crash fire (16); and sand and turbid water in the slurry state of the particles of 6mm or less transferred in the above step by the multiple crash fire classifier (16) by moving the assemblers toward the bucket wheel with a spiral screw in the slurry tank Dehydrator 17 for dehydrating the reclaimed sand with a bucket wheel to the 150 mesh to 200 mesh to discharge the regenerated fine aggregate; and the sludge turbidity generated in the classification process is turned over with a screw to float fine foreign matter, such as sludge turbidity A water collecting tank and a pumping device 18 for collecting and transporting sludge through an outlet of the rear end of the slurry tank; Sikna (19) for coagulating and thickening the sludge by adding agitation reaction to the sludge turbid water transferred in the above step to the automatic control injector; and the storage tank (21) for transporting and storing the concentrated sludge in the pipe step; A filter glass 22 for extracting the concentrated sludge stored in the vortexing step by a predetermined amount and dehydrating the cake into a cake; A replenishment water tank 20 for recovering and reusing the filtered water in the dehydration process of the filter press 22 of the vortex stage and the chicna 19; And a control room 23 for automatically controlling the machines and equipment of the previous step; and a plurality of belt conveyors for transporting the raw materials connecting the machines and the devices. The roll crusher 14 includes raw materials. Drive in the same direction as the vibrating feeder 201 which constantly and evenly inputs the four rolls 202 for crushing in two stages by compression and shear forces, a hydraulic motor for driving the rolls 203 and a hydraulic motor, And a hydraulic press 204 for compressing the roll and the roll. The foreign matter sorting machine 07 may include a guide device 301 and a foreign matter removing device to prevent the falling of raw materials falling from the belt conveyor. In a wide belt conveyor designed to have a width of about 2m in the filled tank 300 and not to slip during the transportation of raw materials (302) Floating and raw materials are transported to the dehydrator 08 via the conveyor 302, the injured foreign matter is dewatered to the removal dehydrator 09 by the debris removal device 304 to move to the rear, such as turbid water, due to the operation Sediment of three particles precipitated by turbid water and vortex is continuously removed with a belt remover 303 that sweeps up the tank iron plate while rotating in reverse, combined with dehydrated turbid water, and transferred to the chicna 19 or put into the dehydrator 08. In addition to the conveyed to the conveyor 302, the dehydration was made while passing through the dehydration screen in the back gradient by the excitation force of the vibrator 305 is put into the compression crusher 10, which is the next step, and the dewatered turbidity is the belt remover 303 It is characterized in that it is combined with the sludge of the) and transferred to the sikna 19 to coagulate sedimentation treatment as the sludge of the multiple classifier 16. The vertical impact impact crusher 15 The raw material introduced into the raw material inlet 411 is a rotary force of the vertical shop 414 equipped with the rotor 412 rotates the rotor 412 at high speed so that the raw material sprayed through the three rotor tips with centrifugal force is attached to the housing 410. The raw material newly sprinkled from the crushing and rotating while hitting the anvil and the raw material newly sprayed from the rotor 412 are characterized by having a grinding and peeling action by being crushed and worn. The multiple crash fire 16 is a wet vibration screen. Slurry tank (501) into which the slurry (spent water containing sand and sludge) which has passed through (13) flows in, and a screw (502) in which sand in the slurry is moved in one direction and turned over to float foreign matters The tank 501 and the dehydrator 17 and the multiple crash fire 16 which dewater the sand moved by the screw 502 to the bucket wheel 503 and dewater it to the vibrator 504. It is characterized in that it comprises a turbidity tank (511) for storing the slurry turbidity of the separated foreign matter and the finely divided powder, and the intermediate adjustment tank (514) for pumping the slurry turbidity with a pump (512).

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the process diagram of FIG. 2 and the schematic diagram of FIG. 3. The method for producing recycled Aggregate aggregate according to the present invention is as shown in FIG. 2 and FIG. Dry screen through hopper (01) and vibrating feeder (02) that inputs construction waste raw materials mixed with various foreign substances such as concrete, waste wood, plastic, soil, red brick, waste asphalt fragments, vinyl, textile pieces and styrofoam. 03);

b) first removing the ground powder from the raw material supplied in step a) with a two-stage dry vibrating screen (03) having a top of 100 mm to 200 mm scale and a bottom of 20 mm to 50 mm scale;

c) a step of removing the large amount of foreign matter during the conveyance to the conveyor to remove the waste concrete remaining at the top of the screen in step b) by hand and put it into the first compression crusher;

d) crushing the waste concrete transported by removing the first foreign matter in step c) with a jaw crusher which is a first compression crusher (04);

e) removing the second foreign matter by using the F (F1) and the first magnetic material by the belt charity machine (M1) in the process of supplying the waste concrete crushed in step d) to the feeder (05);

f) combining the foreign matter removed in step e) with the residual passage at the bottom of the screen in step b), and again removing the secondary soils with a dry screen (06) equipped with a 10 mm to 20 mm screen net, followed by 휀 (F2) and Removing foreign matter in a third order with a magnetic separator (M2);

g) In the step f), foreign matters such as soil, magnetic material, etc. are removed to a sorting machine (sorting) 07, which is a wet foreign material remover, and the fourth foreign matters are removed by flotation using a dehydrator 09. , The waste concrete is dewatered into a dehydrator (08) and then put into a secondary compression type crusher (10); And turbid water from the dewatering process is sent to Sikhna and treated like other turbid water.

h) shredding the conveyed and processed in step g) using a double jaw or cone crusher which is a secondary compression shredder (10);

i) feeding and transporting the secondary crushed in step h) to the B6 belt by the feeder 11 and then feeding and crushing it into the third compression type crusher 12 and supplying it to the wet vibration screen 13; And the crushed by the crusher 12 may be changed and stored in three kinds of aggregates by changing the circuit to a variable damper switch as necessary.

j) After removing the magnetic material with the tertiary charity (M3) of the crushed in step i), the scale of the wet vibration screen is equipped with a screen of 13mm to 17mm at the top, and a screen of 4mm to 6mm at the bottom and sprayed Filtered by a two-stage wet vibrating screen 13, which is a water device, the residue that passes through the top of the screen is sent to the sorting machine (07), reprocessed by combining it as the first crushing, and the particles that have passed through the bottom remain third. (F3) to remove the foreign matter once again by the wind and transported to the roll crusher 14; And

k) compressively crushing to 4 mm to 6 mm or less with a roll crusher 14 crushed in two stages consisting of four rollers conveyed in step j); and

l) After removing the magnetic material with the 4th charity (M4) after the crushed in step k) the stone hit the anvil by centrifugal force and the stone and metal type (Rock on Metal type) vertical shop excellent in grinding and peeling action Inputting an impact crusher (vertical shaft impact crusher) 15 to improve the shape of the abrasive grinding treatment by impact;

m) Multiple crash fires in the slurry state of particles of 4 mm to 6 mm or less, passed through the screen, were put into the bottom of the wet vibrating screen 13 by polishing and peeling off with a vertical shop impact crusher in step l). Conveying and classifying to (16); Wow

n) The sand and turbid water in the slurry state of the particles of 6 mm or less transferred in step m) is moved to the bucket wheel by the spiral screw in the slurry tank by the multiple crash fire classifier 16, and the classification point is 150 mesh to 200 mesh. Send the reclaimed sand through the bucket wheel to the dehydrator (17), and dehydrate it and discharge it to the reclaimed sand product.The sludge turbid water is turned over with a screw to float fine foreign matter, and the sludge is collected through the outlet of the slurry tank end like the sludge turbid water. And transferring it to the chicna 19 through the pumping device 18;

o) The coagulant is added to the schna 19 by the automatic control injector in the sludge turbidity water transferred to the schna 19 in step n) and stirred to coagulate and concentrate the sludge to be concentrated sludge to be transferred to the sludge storage tank 21. Storing; Wow

p) extracting the concentrated sludge stored in step o) by a predetermined amount and dewatering the filterless 22 to make a cake to be disposed of; Wow

q) storing and reusing the water purified in the dewatering process of the filter press 22 in step p) and the water purified in the chicna 19 in the step o) in the recovery replenishment tank 20; Wow

r) a control room 23 which automatically controls the main machines and equipment of the entire system.

The apparatus for manufacturing three aggregates recycled from waste concrete using the construction wastes of the present invention will be described in detail the apparatus for manufacturing recycled fine aggregates using construction wastes as shown in the process flow diagram of FIGS. A hopper 01 and a vibration feeder 02; Wow

A dry screen (03) device for first removing soil from a raw material supplied from the vibration feeder (02) with a two-stage dry vibration screen having a scale of 100 mm to 200 mm and a scale of 20 mm to 50 mm at the bottom; Wow

Jaw crusher (04), which is a compression crusher for firstly crushing after removing the foreign matter by the water line (手 운반) during transporting the waste concrete from the dry screen to the conveyor; Wow

A fender (05) for supplying the crushed waste concrete to the belt and a belt char (M1) for removing the secondary foreign matter by wind power in the process of supplying it, and also removing the magnetic material; and

A second dry screen (06) for removing the secondary soil powder again by adding the foreign matter removed with the belt charity machine (M1) and the residual passage at the bottom of the dry screen (03); and

A second filter (F2) and a magnetic separator (M2) for removing the magnetic material by the wind and the magnetic force secondly filtered by the dry screen (06); Device

The dehydrator (09) for dehydrating the foreign matter removed by removing the foreign matter by a wet floating method by putting the foreign matter such as the soil and magnetic material is removed into a sorting machine (Sorting) (07) that is a wet foreign matter remover; Sorting apparatus consisting of a dehydrator (08) for dehydrating the water of the intermediate raw material; And

A crusher 10 or a double jaw crusher, which is a crusher 10 for crushing the intermediate raw material after dehydration; and

The second crushed in the above step is transported to the B6 belt by the feeder 11, the shot head cone crusher of the third compression type crusher 12; and the crushed if necessary by changing the circuit to a variable damper switch and discharged to the coarse aggregate Add a storage device.

After removing the magnetic material with the tertiary crushed tertiary charity (M3), the wet vibration screen is equipped with a 13mm to 17mm screen, the bottom of the screen 4mm to 6mm wet vibration equipped with a water spray (撒水) device A two-stage wet vibrating screen 13 filtered through the screen;

In this step, the remaining passes through the top of the screen are sent to the sorting machine (07) for reprocessing and the residues passed through the bottom of the foreign matter once again removed by wind (F3);

A roll crusher 14 which compressively crushes 4 mm to 6 mm or less in a roll crusher for crushing in two stages using four rolls to remove foreign matters in the third shock; and

After removing the magnetic material with the 4th charity (M4) after the crushing in the above step, the stone hit the anvil by centrifugal force and the stone and metal type (Rock on Matal type) grinding gypsum granular improver excellent excellent grinding and peeling action Impact shaft crusher 15; Wow

In this step, the abrasive is removed with a vertical shop impact crusher (15), and the shape improvement is put into the bottom of the wet vibrating screen (13) to filter and transfer the slurry in the state of the slurry of particles from 4mm to 6mm or less 0mm through the screen. Multiple crash fires 16; and

Sand and turbid water in the slurry state of 6 mm or less particles transferred in the above step is moved to the bucket wheel with the screw screw in the slurry tank by the multiple crash fire classifier 16, and the bucket wheel is divided into the bucket point of 150 mesh to 200 mesh. Dehydrator (17) for draining the reclaimed sand with dry to discharge the regenerated fine aggregate;

Sludge turbidity water generated in the classification process is turned over with a screw to float fine foreign matter to collect the sludge through the outlet of the tail end of the slurry tank, such as sludge turbidity water pump and pumping device (18); Wow

Sikhna (19) for coagulating and thickening the sludge by adding agitation reaction of the flocculant to the sludge turbid water transferred in the step into an automatic control injector; and

A storage tank 21 for transporting and storing the farm sludge in the step; Wow

A filter press 22 for extracting the concentrated sludge stored in the step by a predetermined amount and dehydrating the cake into a cake; Wow

A replenishment water tank 20 for recovering and reusing the filtered water in the dehydration process of the filter press 22 of the step and the chicna 19 and reusing it; Wow

A control room 23 which is a device for automatically controlling the main machines and equipment of the previous stage; and

Each of the machines and the apparatus is provided with a plurality of belt conveyor for transporting raw materials.

As shown in Figure 4, the roll crusher 14 is a machine newly introduced to the production of recycled aggregates, characterized in that the crushed material is crushed into a cubic and less finely generated by the compressive force, shear force and slight frictional force, the structure is four rolls in two stages The crushing structure of the hydraulically driven roll crusher, which is crushed, is driven in the same direction as the vibrating feeder 201 that constantly and evenly feeds the raw materials, and the four rolls 202 that crush the two stages by compression and shearing force and drive the rolls. The hydraulic motor 203 and the hydraulic motor 204 for driving the hydraulic motor and compressing the roll and the roll.

Referring to the structure of the foreign material removing sorting machine 07 of FIG. 5 in detail, the guide device 301 for preventing the raw material falling from the belt conveyor from being separated and the foreign material removing device having a wide width of about 2m in the tank 300 filled with water When the raw material falls on the wide belt conveyor 302, which is designed to not slip during transportation of the raw material, light debris is floated on the water, and the raw material is dehydrated by the conveyor 302 to the dehydrator 08. The debris is dewatered by the dehydrator 09 by the foreign substance removal device 304 moved to the rear, and the sediment of three particles precipitated by turbid water and vortex due to the operation is continuously rotated by a belt remover 303 which sweeps up the tank iron plate while rotating in reverse. The vibrator (3) in combination with the removed or dewatered turbid water and transferred to the chicna (19) or to the dehydrator (08) and to the upper conveyor (302). The dehydration while passing through the dehydration screen in the inverse gradient by the excitation force of 05) is put into the compression crusher 10, which is the next step, and the dewatered turbidity is combined with the sludge of the belt remover 303 to the sikna 19. Transfer and coagulation sedimentation treatment as sludge of the multiple classifier 16.

The rock and metal type impact crusher of FIG. 6 describes the structure of the vertical shop impact crusher 15 that has excellent grinding and peeling action to remove cement mortar as the stone is abraded by the anvil. The raw material introduced into the 411 is an anvil in which the rotational force of the vertical shop 414 equipped with the rotor 412 rotates the rotor 412 at high speed so that the raw material sprayed through the three rotor tips with centrifugal force is attached to the housing 410. It is further provided with a stone and metal vertical impact impact crusher having excellent grinding and peeling action as the raw material newly sprinkled by the crushing and rotating force coming out of the rotor and the rotor 412 is crushed and worn by hitting the anvil. Therefore, by finally processing with a stone and meta-type vertical shop impact crusher that shaves the crushed by the roll crusher 14, which is a compression crusher, it is possible to effectively remove the cement mortar attached to the aggregate to improve the quality.

The multiple crashfire 16 of FIG. 7 moves the slurry tank 501 into which the slurry (a turbid water containing sand and sludge) flows through the wet vibration screen 13 and the sand in the slurry in one direction. Slurry tank 501 with a screw 502 to injure foreign matters, and a dehydrator for dehydrating the sand moved by the screw 502 to a bucket wheel 503 to dehydrate the vibrator 504 (17) and a turbidity tank (511) for storing the slurry turbidity of the fines and the finely divided powders floated from the multiple crash fire (16), and an intermediate adjustment tank (514) for pumping the slurry turbidity with a pump (512) ). This multiple crash fire is treated by transporting the foreign matter and sludge turbid water through the turbid water tank 511 through the turbid water tank 511 to simultaneously remove the foreign matter and turbid water and fine particle control of the three aggregates.

Magnetic material selector removes magnetic materials from metals and removes foreign materials such as vinyl fibers by wind, while wood chips, plastic pieces, and styrofoam are completely removed by 4 to 5 times. It is equipped with a device, and can additionally control the appropriate moisture content to reduce the adhesive strength of the waste concrete to increase the effect of crushing, grinding and peeling can be efficiently produced fine aggregate fine aggregate.

Each reclaimed aggregate aggregate manufacturing apparatus is further provided with a plurality of conveyors for feeding and feeding.

The apparatus of the present invention makes it possible to produce recycled fine aggregates with high added value in the waste concrete from which foreign substances have been removed.

As shown in the detailed description of the embodiment of the method and apparatus of the present invention, the results for each embodiment of the physical property test by preparing the prototype by the method and the method of the prior art are shown in Table 1.

Table 1 Example Prototype Property Test Results Table

Example 1

As shown in Example 1 of Table 1, the first treatment of waste concrete was carried out only three times through the impact in the same manner as in the prior art, and the physical property test result of regenerated Aggregate without particle size control. The water absorption rate was 4.27% by weight, which did not satisfy the KS standard specific gravity of 2.5 or more and the water absorption rate of 3% by weight or less.

<Example 2>

As shown in Example 2 of Table 1, the first treatment of the waste concrete three times through the impact in the same manner as in the prior art, and the physical property test results of the three aggregates adjusted particle size, the specific gravity 2.50, the specific gravity 2.42 and the absorption rate 2.89 Its share volume is slightly above the KS standard of 2.50 and the water absorption rate below 3% by weight.

Example 3

As shown in Example 3 of Table 1, the construction waste is manufactured in the same manner as the present invention, and in particular, a hydraulic roller crusher and a stone and metal vertical impact impact crusher are processed once each and recycled three aggregates without particle size control. As a result of the physical property test, the specific gravity of 2.50 and the absorptive specific gravity of 2.43 were found to be 2.75% by weight, slightly above the KS standard value of 2.50 and 3% by weight.

Example 4

As in Example 4 of Table 1, the construction wastes were manufactured by the same method as the present invention, and in particular, the hydraulic roller crusher and the stone and the meta-type vertical impact impact crusher were treated once and each particle size was adjusted. As a result of the physical property test, a prototype with a specific gravity of 2.51 and a dry specific gravity of 2.50 with an absorption rate of 1.89% by weight, satisfying the KS standard value of 2.50 or more and an absorption rate of 3% by weight or less were produced.

The recycled aggregate manufacturing apparatus of the present invention as described above has the following advantages.

First, by producing and supplying all recycled fine aggregates (recycled crushed sand) with high added value using building wastes generated by tens of millions of tons per year, it is effective to make construction wastes useful resources and prevent environmental pollution.

Second, the first treatment process to remove construction foreign materials such as soil, which is the first treatment, and to collect the waste concrete and crush it to 40mm or less, and to make recycled aggregate and fine aggregate by reprocessing it. Although the process is divided into treatment processes, the present invention can improve productivity and reduce costs by producing regenerated fine aggregates with high added value through a simple process to unify primary and secondary processes, as well as to reduce facility costs due to the overlapping facilities of machines. As a result, the production cost of the recycled aggregate production plant can be lowered, and the reduction of the recycled aggregate production cost can be increased by preventing waste of operation and maintenance costs.

Third, by removing impurities from various impurities such as dry and wet, wind power, magnetic force, buoyancy, etc. contained in the construction waste, there is an effect of providing a manufacturing method that can produce fine aggregate fine aggregates for ready-mixed concrete.

Fourth, crushing grinding and peeling are repeatedly carried out through the 3rd compression crushing, the 1st compression and shear crushing, and the 1st impact crushing, and the cement mortar and the angle are removed to remove the cement mortar and improve the shape of the grain. It is maximized to solve the problems of specific gravity and water absorption, which are difficult to recycle aggregate. In other words, it can increase the specific gravity of the recycled aggregates and lower the absorption rate, so that it is possible to smoothly supply the depleted construction materials by producing the interlocking and cement brick manufacturing raw materials, and recycled fine aggregates suitable as a mixed raw material for ready-mixed concrete production.

fifth. The final process of the production of recycled aggregate is the centrifugal force impacting stone and stone to shave the hair, and produce the recycled aggregate product that has effectively removed cement mortar with the same degree of natural roughness as natural aggregate. It prevents fine powder from grinding and makes fine aggregates (sand) with high added value, so the error rate of product standing is 53% by weight or more and recycled aggregates are cleanly cleaned of fine powder, thereby improving workability and density and adhesion of concrete. There is an economic effect to reduce the amount of cement by increasing the concrete strength.

Sixth, by using the hydraulic roll crusher to crush two stages into four rolls, the new machine, it minimizes segregation and fine sludge by crushing with compressive and shear forces, and the granule is crushed into cubic. have.

Claims (7)

delete delete A hopper (01) and a vibration feeder (02) for inputting, storing and supplying raw materials of construction waste; Wow A dry screen (03) for first removing soil powder from a raw material supplied from the vibration feeder (02) with a two-stage dry vibration screen having a scale of 100 mm to 200 mm and a scale of 20 mm to 50 mm at the bottom; Jaw crusher (04), which is a compacted crusher that firstly crushes the waste concrete from which the soil is removed from the dry screen, and removes the foreign matter by means of repairs during transportation. Wow A fender (05) for supplying the crushed waste concrete to the belt and a belt char (M1) for removing the secondary foreign matter by wind power in the process of supplying it, and also removing the magnetic material; and A second dry screen (06) for removing the secondary soil powder again by adding the foreign matter removed with the belt charity machine (M1) and the residual passage at the bottom of the dry screen (03); and A second filter (F2) and a magnetic separator (M2) for removing the magnetic material by the wind and the magnetic force secondly filtered by the dry screen (06); Device The dehydrator (09) for dehydrating the foreign matter removed by removing the foreign matter by a wet floating method by putting the foreign matter such as the soil and magnetic material is removed into a sorting machine (Sorting) (07) that is a wet foreign matter remover; Sorting apparatus consisting of a dehydrator (08) for dehydrating the water of the intermediate raw material; And A crusher 10 or a double jaw crusher, which is a crusher 10 for crushing the intermediate raw material after dehydration; and A third compression crusher 12 for conveying and crushing the secondary crushed in the step to feed the belt B6 with a feeder 11; and After removing the magnetic material with the tertiary crushed tertiary charity (M3), the wet vibration screen is equipped with a 13mm to 17mm screen, the bottom of the screen 4mm to 6mm wet vibration equipped with a water spray (撒水) device Two-stage wet vibrating screen 13 filtered through the screen; and In the above step, the remaining passes through the top of the screen is sent to the sorting machine 07 to be reprocessed, and the foreign matter removed once again by the wind to remove the foreign matter passed through the third stage (F3); and A roll crusher 14 which compressively crushes 4 mm to 6 mm or less in a roll crusher for crushing in two stages using four rolls to remove foreign matters in the third shock; and After removing the magnetic material with the 4th charity (M4) after the crushing in the above step, the stone hits the anvil by centrifugal force, and it is an excellent stone and metal type (Rock on Matal type) abrasive grinding machine of vertical grinding A vertical shaftimpact crusher 15; Wow In this step, the abrasive is removed with a vertical shop impact crusher (15), and the shape improvement is put into the bottom of the wet vibrating screen (13) to filter and transfer the slurry in the state of the slurry of particles from 4mm to 6mm or less 0mm through the screen. Multiple crash fires 16; and The sand and turbid water in the slurry state of the particles of 6 mm or less transferred in the above step is moved to the bucket wheel by the spiral screw in the slurry tank by the multiple crash fire 16, and the regeneration point is 150 mesh to 200 mesh to regenerate the bucket wheel. Dehydrator 17 for draining the dry dry sand to discharge the regenerated fine aggregate; And Sludge turbidity water generated in the classification process is turned over with a screw to float fine foreign matter to collect the sludge through the outlet of the tail end of the slurry tank, such as sludge turbidity water pump and pumping device (18); Wow Sikhna (19) for coagulating and thickening the sludge by adding agitation reaction of the flocculant to the sludge turbid water transferred in the step into an automatic control injector; and A storage tank 21 for transporting and storing the farm sludge in the step; Wow A filterless 22 for extracting the concentrated sludge stored in the step by a predetermined amount and dewatering the cake into a cake; Wow Replenishment tank 20 to recover the water filtered in the dehydration process of the filter press 22 of the step, and the water purified in the sikna 19 to be reused; Wow A control room 23 which is a device for automatically controlling the machines and equipment of the previous step; and Apparatus for producing recycled aged aggregate using construction waste comprising a plurality of belt conveyor for transporting the raw materials connecting the machines and devices. 4. The roll crusher 14 is driven by the vibration feeder 201 for uniformly and evenly feeding the raw material, and the four rolls 202 for crushing two stages by compression and shear force, and the rolls. Recycling three aggregate production apparatus using a construction waste, characterized in that consisting of a hydraulic motor for driving and a hydraulic motor (203) for driving the hydraulic motor and compressing the roll and the roll. The method of claim 3, wherein the foreign matter sorting device 07 has a width of about 2m in the guide device 301 to prevent the falling of the raw material falling from the belt conveyor and the tank 300 filled with the foreign matter removing device is filled with water. When the raw material falls on the wide belt conveyor 302 which is designed to be slippery during the underwater transportation of raw materials, light debris is floated on the water, and the raw material is dehydrated by the conveyor 302 to the dehydrator 08. The dehydration unit (09) is dewatered by the dehydrator (09) by moving the foreign substance removal device to the rear, and the sediment of three particles precipitated by turbid water and vortex due to the operation is continuously rotated by a belt remover (303) which sweeps up the tank plate while rotating in reverse. Vibration in combination with the removed and dewatered turbidity and the transfer to the chicna 19 or transfer to the dehydrator 08 and to the upper conveyor 302 The dehydration while passing through the dehydration screen in the reverse gradient due to the excitation force of 305 is introduced into the compression crusher 10 which is the next step. Regenerated Aggregate Aggregate Production Equipment using construction waste, characterized in that the coagulation sedimentation treatment, such as sludge of the multiple classifier (16) by transferring to. The method according to claim 3, wherein the vertical impact impact crusher 15 is a raw material introduced into the raw material inlet 411, the rotational force of the vertical raft 414 equipped with the rotor 412 is a high-speed rotation of the rotor 412 3 The raw material sprinkled through the two rotor tips hits the anvil attached to the housing 410, and the raw material newly sprinkled from the rotor 412 collides with each other. Recycling aged aggregate manufacturing apparatus using the construction waste characterized in that. The method of claim 3, wherein the multiple crash fire 16 is a slurry tank 501 through which the slurry (the turbid water containing sand and sludge) flowing through the wet vibration screen 13 and sand in the slurry in one direction. Slurry tank 501 with a built-in screw 502 to move and flip over to lift up the foreign matter, and the sand moved to the screw 502 is lifted up with a bucket wheel (503) to dehydrate the vibrator 504 A middle water tank (511) for storing the debris floated from the dehydrator (17) and the multiple crash fire (16) and the slurry turbid water of the finely divided fine powder, and pumping the slurry turbid water with a pump (512) to an intermediate control tank. An apparatus for producing recycled fine aggregate using construction waste, characterized in that 514 is provided.