JP3052126U - Construction waste treatment equipment - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To provide an industrial waste treatment apparatus that is environmentally friendly and efficiently recycles industrial waste. SOLUTION: Construction waste is collected and thrown into a jaw crusher 10 so as to be crushed to 200 mm or less. Metal materials are separated by a magnetic separator 21 while transferring the crushed waste, and the sediment is received by a plane vibrating screen 30. Separated and sorted into aggregates of 40 mm and 40 mm in size, and the aggregates are put into the water tank 40 to wash the aggregates and to raise the suspended matter, and the sediment is transported through the plane vibrating screen, and the sedimentation tank Coagulant administration and water replenishment treatment are possible so that water can be purified. After the washed aggregate is pulled out by another conveyor belt, the aggregate and water are separated from each other by a water recovery screen, and the jaw is removed. Crusher 10 crushes to 45-75 mm, and magnetic separator 21 separates the remaining metal material.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to environmentally friendly, efficient recycling of construction waste, and to the intermediate treatment of construction waste that can effectively address resource shortage and conserve the environment. In addition, concrete lumps, waste wood and asphalt concrete lumps generated at construction sites such as various types of construction and civil engineering work are collected and fed to the intermediate treatment device of the present invention, whereby crushing provided in multiple stages is performed.・ High quality recycled aggregates will be produced by processes such as sorting and washing. Especially, when the input waste goes through each process, it is sorted and washed according to the characteristics of the waste. Construction waste that has improved functions, such as shortening the time and precision of the equipment, improving the durability of the equipment, and improving the quality of recycled aggregate and reducing the cost of consumables. Environmentally friendly processing and reuse It relates to the apparatus.

[0002]

[Prior art]

 The so-called policy of promoting development priority and high growth in developing countries lacks consideration of environmental issues. Furthermore, even in developed countries, the developed architecture and civil engineering culture requires cyclical rebuilding, and the disposal of construction waste that is inevitably generated in these processes creates conflicts with environmental issues. I have.

[0003] Accordingly, as a result of such a growth first policy, the disposal problems associated with the increase of various wastes and contaminants, which are by-products, have reached an urgent point at which they cannot be carried over any further. In particular, construction industrial waste from various types of construction and civil engineering has shown a very rapid increase, which has recently been actively pursued due to the aging and deterioration of urban and local buildings. It is mainly due to activation of reconstruction and demolition of structures.

[0004] In general, construction waste refers to soil, sand, gravel, debris or a mixture of these in which garbage, waste materials, and the like are mixed, concrete lumps, waste wood, asphalt concrete. Lumps and construction sludge are collectively referred to. One of their main characteristics is that they are harmless to the human body because most of the construction waste is composed of inorganic substances. Because of the complexity and difficulties of the treatment after being discharged, it can be said that this point provided a source of disinterest in the government and industry regarding the construction waste treatment that could be used as useful material in the meantime.

[0005] The above-mentioned indifference involves waste of precious resources, and the quality of the preformed recycled aggregate is also low. Used as a substitute for earth and sand.

[0006] Accordingly, by appropriately managing such waste and enabling substantial reuse, it is possible to actively minimize the environmental pollution, substitute for scarce resources, and reduce the cost of the construction industry as a whole. I have to plan. For this reason, recently, the related laws have been redeveloped in each country, and the recycling of construction waste has become mandatory, and for the first time, various production facilities for recycling industrial waste have been manufactured, and various It has begun to be applied to industrial sites.

[0007] As described above, due to the obligation to reuse construction waste, the system is departed from the waste disposal system that performs simple erasure treatment, and performs partial treatment from waste treatment to regeneration or collective treatment. Devices have been proposed.

[0008] At present, each construction company carries crushers into the construction site to recycle waste materials, but a wide variety of construction waste materials are mixed and discharged. In many cases, due to the performance of mobile equipment, it was difficult to ensure the required quality using only a crusher.

Furthermore, since most of such devices are products manufactured uniformly without taking into account the generation characteristics of construction waste at all, their use as technology is extremely low. Nothing else was restrictive.

[0010] As the prior art according to the present invention, various waste treatment technologies described below have been proposed so far.

[0011] First, Republic of Korea Utility Model Publication No. 94-4771 relates to a "waste disposal apparatus". The system is designed to classify types and to separate soil and garbage so that more reusable resources can be removed.

For such work, the above-mentioned refuse treatment apparatus is provided with an inlet, a primary conveyor, and a primary roller crusher composed of a shaft roller having a protruding piece provided on an upper portion of an inclined frame. Primary magnet conveyor composed of non-conductive rollers and non-conductive rollers and circular pipes, cutting machine composed of supporting swords and flowing swords, primary sieve mesh, secondary roller crusher, secondary Conveyor, secondary magnet conveyor, secondary sieve net, and tertiary horizontal conveyor are installed in this order.

[0013] Furthermore, Japanese Patent Publication No. 5-21632 also relates to a "garbage disposal apparatus", which includes a crusher and a crusher for squeezing input garbage, and a separating device and a crusher for separating the crusher. A melting furnace is installed, which has peripheral components and equipment for sizing the melted substances to a predetermined size and shape and sequentially discharging them appropriately to the outside by means of a conveyor belt. Further, Japanese Patent Publication No. 6-30755 relates to “Recycling method of concrete aggregate and its installation”. The building, civil engineering structure or concrete structure is dismantled, crushed and specified. This is a method and a device for crushing and reusing the waste, and the waste has a plurality of protrusions formed toward the inner surface, and a shaft so that it can be rotated by a separate power generation means. It is thrown into the rotating drum and crushed. The crushed aggregate of the appropriate size then falls down by its own weight, and the powder is connected to the upper transfer path. It is configured to be re-introduced and discharged into other processes, and the fines are sent through a re-processing process to a predetermined place while being separated and separated.

On the other hand, recently, a system for regenerating construction waste including sewage sludge has recently been proposed, and has begun to be partially applied to each industrial site.

[0015]

[Problems to be solved by the invention]

 However, the conventional equipment described above is not enough to automatically separate construction waste containing various types of waste and to improve the quality of recycled aggregate, and the utility is extremely low. In reality, many improvements are required to be applied and used in various industrial sites.

[0016] Furthermore, a system for regenerating construction waste including sewage sludge is provided with a process of crushing, sorting, and washing, which are typical waste treatment methods, on a continuous line to convert useful materials from input waste. Despite such a purpose, if such a system is to be used, the aggregates will be mixed with various wastes and the aggregates will be improperly arranged due to improper arrangement of the components. Automatic precision sorting is difficult, weakens the durability of screens and conveyors, induces frequent breakage, and has a high degree of contamination during the cleaning process, leading to many problems in reusing water. And other inconveniences.

[0017] For example, in a sorting machine composed of a rotating drum body employed in such a configuration, the respective sieve nets are entangled with debris such as vinyl, fiber pieces, synthetic resin, etc., thereby greatly reducing efficiency. This involves the problem of having to remove each one by using a heating torch. In addition, in the “wind separation” system that uses a specific gravity by installing a blower at the point where the conveyor falls, the conveyor is thickly stacked on a narrow conveyor. The effect of the wind force while dropping the aggregate causes a curtain phenomenon between the aggregates, causing a problem that the efficiency of refuse sorting is extremely poor.

[0018] Therefore, based on these problems, there is a method in which a large number of human resources are unavoidably mobilized and arranged around the aggregate transporting conveyor, whereby the garbage is sorted by hand. Has been adopted. At that time, a conveyer-using system that uses a water storage tank to simply pass water through a conveyor for transferring aggregates is also used. Primary crushing of construction waste → sorting, classification, washing, secondary crushing → sorting, classification, washing and vertical discharge method were also applied, but the main target of the sorting was mixed with construction waste. Waste (eg, wood chips, waste paper, waste plastics including plastics and vinyl, and styrofoam) is common, and the process of producing recycled aggregate using these various construction wastes is a common problem. However, it was practically difficult to expect high-quality recycled aggregate, as well as requiring a great deal of time and effort.

For example, considering the state of construction waste generation in South Korea, one of the developing countries, of the total construction waste, about 10 million tons (approximately 4.3 million Cubic meters), about 7 million tons of asphalt concrete lumps, about 5.8 million tons of construction sludge, about 3 million tons of waste wood, and about 5.8 million tons of mixed waste. The relevant academia estimates that the process has occurred. As mentioned earlier, the largest amount of such construction waste is waste concrete, which accounts for about one-third of all construction waste.

FIG. 1 attached hereto is a conventional process diagram for producing recycled aggregate using such waste concrete, according to which the use of the crusher and the use of the crusher before the waste concrete is carried into the regeneration plant. After being crushed to a size appropriate for the volume and transported to the regeneration plant, the waste concrete thus transported is crushed by using a jaw crusher (capacity 100 t / h), and is crushed using a rebar and wood chips. After removing unnecessary materials, they are crushed using an impact crusher (capacity: 100 t / h), and finally the reinforcing bar pieces are removed using a magnetic separator. Will be sorted out.

However, fine aggregates are extremely rough even by such a process, so that it is difficult to use them alone. The properties of the aggregates vary depending on the size of the grains. Although the specific gravity of the building decreases and the water absorption rate increases, the recycled aggregate that has passed through the above process has a small grain size, so the cement paste content is large, and the quality of the aggregate deteriorates accordingly.

[0022] Therefore, in the intermediate treatment of construction waste, special consideration must be given to the production of higher quality recycled aggregate and the efficient use of resources. In addition, the production of recycled aggregate should not, of course, create another source of secondary pollution. Therefore, resource recycling costs are added in addition to waste landfill costs, and it is possible to create value that cannot be converted after all.

[0023]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention adds a flat screen drop point dust blowing method to the traditional method of crushing, sorting and cleaning, and uses water to wash and regenerate recycled aggregate. The above-mentioned problems could be solved by adopting an automatic refuse classification method and applying a forced return method for improving recycled aggregate particle shape to produce useful materials of good quality. Because all such processes and components are automated, the required labor is reduced and production efficiency is increased.

Hereinafter, the construction waste treatment apparatus according to the present invention collects and inputs construction waste in which various wastes are mixed, and crushes the construction waste to a first dimension or less, for example, 200 mm or less. A first crushing means provided with: a crushed waste having a size equal to or less than the first dimension is placed and transported, and a metal material mixed in the waste is separated by a magnetic separator; A first transfer belt means provided with impact mitigation means; and a waste crushed to the first dimension or less transferred by the transfer belt means is dropped, and the eddy current generated from the plurality of blowers causes the sediment and the second to be removed. A first sorting means provided with a perforated iron plate for separating aggregates having a size of, for example, 40 mm or more and vibrating at a constant cycle while dropping waste; Aggregate of two or more dimensions is charged, and the high-pressure jet generated in the underwater explosive tank is used to wash the aggregate of the second dimension or more and to raise suspended matter such as waste wood, and An aquarium tank for separating aggregates having two or more dimensions from the suspended matter; forcibly transferring the suspended refuse collected by the aquarium tank to the outside together with water, and forcing the suspended matter to separate the water and the garbage by a garbage separating rotating machine A water recovery sedimentation tank separated by a plurality of interconnected sedimentation tanks for injecting water separated from the refuse and injecting coagulant for purifying water and for replenishing water; A water recovery screen is provided at the upper end of the water tank so that the aggregate having the second size or more washed by the water tank is sequentially drawn out. Aggregate more than the second dimension and water A second transfer belt means for separating the second transfer belt means; and a jaw crusher for sequentially introducing aggregates having the second size or more discharged by the second transfer belt means and crushing the aggregate to a third size or less. (2) crushing means; connected to the second crushing means, while separating and transporting aggregates crushed to a third size, for example, at least 45 to 75 mm or less, and separating the remaining metal material by a magnetic separator. And a third transfer belt means provided with an impact mitigation means at the time of falling of the aggregate; and a fourth dimension, for example, an aggregate of at least 25 mm or less from the aggregate having the third dimension or less separated from the metal material. A second sorting means having a perforated iron plate for separating and discharging according to each dimension while generating a vortex from a plurality of blowers after the sorting and vibrating at a constant cycle; and being connected to the second sorting means. Bone that is more than 4th dimension A fourth transfer belt means driven with a magnetic separator so as to be re-conveyed; and wherein the conveyed aggregate is re-crushed to a fifth dimension or less and then loaded on the second transfer belt means. And third crushing means provided with a cone crusher.

[0025]

[Embodiment of the invention]

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same parts throughout the drawings.

FIG. 2 and FIG. 3 show a process chart for producing recycled aggregate of construction waste according to the present invention. This process diagram (intermediate treatment method for the production of recycled aggregate) shows that during the initial construction waste input process, for example, aggregates of 25 to 9 mm or aggregates of 9 mm or less are finally separated and This includes not only the discharge process, but also any preparatory treatment methods that may appear in the process.

[0027] This preliminary post-treatment method includes a method of separating the sediment from the aggregate when the waste is sorted out, and includes a method of removing waste wood mixed with the aggregate. It also includes a method of treating suspended matter that occurs during the washing process of aggregates.

[0028] In order to achieve the object of the present invention, construction waste discharged from various buildings, civil engineering works, etc. is collected and treated at a treatment site (outside the metropolitan area) where the device of the present invention is specially installed. (Where the goods can be easily transferred to the Guo area), but the waste drawings are not shown in the attached drawings.

The device of the present invention has the same arrangement plant design as in the enlarged plan view of the attached FIGS. 4 and 5, and operates on a fully automated system by the centralized control system as a whole. As a result, it is possible to realize the saving of manpower and the increase of the work amount in a short time.

The collected waste is introduced into the first crushing means which has not been subjected to a separate sorting process. The first crushing means preferably has a jaw crusher (10) equipment configuration. The size of the aggregate by crushing can be arbitrarily selected, but it is preferable to crush the aggregate to a size of approximately 200 mm or less, but it is not limited to this.

The aggregate that has been primarily crushed by the jaw crusher (10) is positioned immediately below the lower end thereof, and is separated from various metallic substances by a magnetic separator (21), which is an iron piece separator. The crushed aggregate is sequentially dropped onto the conveyor belt (20), which is the first transfer belt means, and is loaded. At this time, the magnetic separator (21) is located at the upper end of one side of the conveyor belt (20). It is fixed and installed movably while maintaining Gauss of sufficient strength to allow metal pieces including rebar pieces, nails, etc. to adhere. In order to buffer the vibration and pressure generated by the falling of waste, A urethane flat plate is fixed on the upper part of the conveyor support, so that the durability of the conveyor belt (20) is not weakened due to the falling of waste.

The conveyor belt (20) is set so that it can gradually move upward with reference to the point where the waste falls, and the first sorting means in an inclined form so that it can move downward just below its tip. Has been fixed.

The first sorting means is a plane vibrating screen (30) which is vibrated repeatedly at a constant cycle by an external power, and is provided for separating sediment and aggregate from each other. It is highly desirable to use a perforated iron plate (31) instead of an iron mesh so that the thread pieces and the like do not become entangled. As a result, the replacement cycle can be extended, so that the durability can be significantly improved. In addition, in order to introduce the effect of preventing the removal of waste to the outside, which is an advantage of the circular screen, guide side walls are naturally provided on both sides, and the screen is separated and sorted into aggregates of the normal size of 40 mm. Sieving is performed.

At the lower end of the inclined plane vibrating screen (30), there is provided a water tank (40) made of a hard rubber material that can be seen in a horizontal installation state, so that the sorted aggregate can be supplied as it is. At this time, while the aggregate is uniformly sieved and sieved, the lower end of the perforated iron plate (31) is placed on both sides of the lower end of the perforated iron plate (31) so as to be put into the water tank (40). (32, 32a) is installed. In addition, a rectangular air outlet is provided at the lower end of the drop point of the perforated iron plate (31). When the width of the blower is increased about 4 to 5 times as compared with the conventional conveyor belt system, the blower (32, 32a) may be connected to each other because the wind strength of the blower may not be constant. They are installed so that they cross each other and generate eddies in the wind. With this configuration, it is possible to keep the wind intensity at the air outlet uniform and constant, and the vortex formed in this way can be extended to the jetting point through the air outlet line. Becomes easier.

FIG. 6 is a detailed sectional view showing the internal structure of the water tank applied to the present invention. The aquarium tank (40) into which the selected aggregates are put and subjected to a washing process and an automatic garbage sorting process, as shown in the figure, forms a deeper aggregate drop point and goes to the other side. It has a tapered outer shape so that it can maintain a shallow state, and is further equipped with an internal cleaning jet nozzle (41), an aggregate cleaning nozzle (42), and an underwater explosive tank (43). Contains.

The position of the water tank cleaning nozzle (41) is selected so that it is sprayed toward a deeper portion than a shallow portion, and the sludge in the water tank (40) is automatically cleaned. It is possible to A plurality of high-pressure water injection nozzles (42) are installed at the upper end of the water tank (40) together with a water flow creation sprinkler (about 5 sets). A large amount of water is injected at high pressure to generate a strong water flow. The construction not only cleans the aggregate but also allows the debris floating in the underwater explosive tank (43) to flow to the water recovery passage on the rear surface of the water tank (40).

On the other hand, the underwater detonation tank (43) is installed mainly outside the water tank (40), and the compressed air generated here is sent to the underwater lower end of the water tank (40) by piping. You. The compressed air pumped into the water explodes on the surface of the water while generating many bubbles in the water, and cleans the recycled aggregate put in the water tank (40). In addition, the buoyancy force is maximized in the water tank (40), so that various kinds of refuse mixed with the recycled aggregate float on the water surface.

Normally, the diameter of the compressed air discharging explosive nozzle formed in the pipe of the underwater explosive tank (43) installed at the underwater lower end of the water tank (40) is suitably about 3 mm. Needless to say, the number of discharge holes of the compressed air explosive nozzle is formed in consideration of the capacity of the underwater explosive tank (43).

On the other hand, the aggregate separated in the sorting process as described above and the sediment separated therefrom are located on the bottom surface of the perforated iron plate (31) as in the post-processing step which is another embodiment of the attached FIG. It is conveyed by a conveyor belt (20) extended a little longer at the rear end, and if necessary, external soil and sand are introduced (bones that need to be processed in other external parts that are not discharged in the construction waste disposal process). Through a hopper (22) provided so as to be separated into respective sizes. At this time, it is natural that the plane vibration type screen (30) is attached to the last point of the conveyor belt (20).

In the water recovery passage on the rear surface of the water tank (40) described above, a refuse separation rotary frame (floor separation forced frame feeding means) for forcibly discharging floating materials such as waste wood and waste synthetic resin to the outside. 44) is provided, which is as if it had a continuously rotating water turbine type and pumps water to the outside by high vibration torque.

As described above, the suspended matter collected by the water flow in the water tank (40) is forcibly discharged together with the water by the dirt separation rotating frame (44), and at the same time, the porous iron plate (31) installed at the lower end thereof. ) Falls on a sorting screen (30), which separates floating waste and water from each other. The waste is stored in a separate storage (50) by a conveyor belt (20) and then discharged outside. In addition, the wastewater is configured to flow into the water recovery and settling tank (60).

The water recovery / sedimentation tank (60) is installed at the lower end thereof mainly by the concrete method with reference to the ground, and is divided into approximately four continuous sedimentation tanks (61a, 61b, 61c, 61d). The transfer passage between each partition wall is formed on one lower side.

Further, an appropriate discharging method can be adopted so that the sediment generated from each of the sedimentation tanks (61a, 61b, 61c, 61d) while being settled by its own weight is processed in accordance with the relevant regulations. However, the recycling method is very extensive depending on the abundant organic components contained.

The purification of the water charged in the water recovery / sedimentation tank (60) as described above is performed by adding a polymer flocculant and replenishing water continuously circulated (fresh groundwater is replenished and supplied mainly by a pumping device). In this case, the agglomerates used in this case include aluminum sulfate (Al ₂ (SO ₄ ) ₃ ) and ferric sulfate (Fe ₂ (SO _{4 3} ) was selected to enable the reuse of stepwise purified water (due to the relatively simple nature of the water used as construction waste is composed of minerals) and Must satisfy the rules and regulations.

As an example, the water in the last settling tank (61d), which has been stepwise purified in the settling tank (60), is supplied to each water pipe line installed in the tank (40) by submersion and high pressure. There is a method of reusing it for cleaning aggregates repeatedly by pumping and feeding using a motor.

Further, in the water tank (40) having a tapered configuration, a water tank conveyor belt (20) as a second transfer belt means is continuously driven so that the washed aggregate is pulled out to the outside while being gradually raised. It is installed in the aquarium tank (40) so that the transport speed is reduced as much as possible for the stability of the recycled aggregate. To this end, a water recovery screen (30) is provided at the upper end of the upper surface so that the washing water extracted together with the aggregate can be separated, and water is prevented from entering the next step. The water recovery screen (30) is installed so as to have the function of generating vibration in the same manner as the other screens described above so as not to cause malfunction of the equipment.

Thereafter, the aggregate separated from the water is sequentially dropped into the jaw crusher (10) provided as the second crushing means. At this time, the jaw crusher (10) plays a role of crushing the aggregate charged at least to a size of 45 to 75 mm. Then, the crushed aggregate is transported by a conveyor belt (20), which is a third transport belt means installed so as to be inclined upward, in the same manner as the first transport belt means, and is subjected to the first sorting. It is dropped into a vibrating screen (30), which is a second sorting means installed so as to maintain the same installation form as the means, and a magnetic separator (21) is also provided at the upper end of the conveyor belt (20). It is installed so as to be movable, and is configured to remove residual metal pieces that have not been separated during the primary separation process.

Similarly, a plurality of blowers (32, 32a) are installed at both lower ends of the perforated iron plate (31) of the plane vibrating screen (30), so as to induce a vortex phenomenon in a wind direction. .

The aggregate separated from the metal fragments by sieving through the screen (30) is sorted into a size of at least 25 mm or less, and is then combined with an aggregate of 25 to 9 mm and an aggregate of 9 mm or less. Finally, it is separated and discharged, but it goes without saying that a separate conveyor belt and a magnetic separator can be provided for this purpose, and it is necessary to take into account the production conditions of recycled aggregate and its conditions. The diameter (screen mesh) of the iron plate (31) can be adjusted.

At this time, the aggregate having a size of 25 mm or more is sieved by sieving, and is forcibly conveyed for re-crushing by the blowers (32, 32a) described above. Then, a conveyor belt (20), which is a fourth transfer belt means provided with an iron piece separation magnetic separator (21), is installed so as to incline upward with respect to a point where the transported aggregate falls. And is injected into the cone crusher (70), which is the third crushing means, immediately below. This cone crusher (70) uses the traditional milling method and crushes the aggregate using rotational and frictional forces to improve the grain shape of the aggregate and increase the wear resistance. It has the advantage of making it. However, if small pieces of iron or the like get into the inside of the cone crusher (70), serious inconvenience will occur in the mechanical device, so the magnetic separator (21) is installed on the fourth transfer belt means, and thereby the inside of the concrete is removed. Fine pieces of iron thread, nails, iron cores, etc., which are stuck in the holes, are removed to improve the quality of the recycled aggregate and its commercial value.

The aggregate re-crushed under the cone crusher (70) is re-introduced into the third transfer belt means, and circulated through the above-described process. It can also be designed to be put into the storage (50) as it is.

The above-mentioned cone crusher (70) can be achieved by replacing it with an impact type crusher. However, the cone crusher (70) can be used due to the consumption rate of machine parts and maintenance costs, excessive time required, and a decrease in equipment operation rate. The use of a crusher (70) is preferred.

On the other hand, the power generating device of the present invention is operated by using an electric motor. However, each device can be equipped with a separate engine and a hydraulic drive motor can be used. It is clear that adding a trailer or caterpillar system as appropriate so that the equipment can be moved is an optional specification.

[0054]

【Example】

 The present invention having the above-described configuration means that stable and sustainable production can be achieved with low production cost investment in producing high-quality recycled aggregate using construction waste. Therefore, the present invention realizes the suppression of environmental pollution generation factors and the efficiency of resources. If the efficiency of the present invention is devised more concretely by the embodiment, it can be considered that -6 mm reclaimed sand and -9 mm In the embodiment where the production is performed by subdivided into recycled sand, -25 mm recycled aggregate, earth and sand, etc., the amount of construction waste input versus the aggregate production rate is as shown in FIG.

As described above, as a result of operating the recycled aggregate production facility, as shown in FIG. 8, the production ratio of the produced aggregate is statistically calculated, and the hourly disposal of the construction waste according to the present invention is based on this. The daily production of each aggregate was calculated by multiplying the capacity of 200 cubic meters by 8 hours of working per day, and the result was as shown in the table of FIG.

As described above, when 1600 cubic meters of construction waste is initially injected per day, the production of -25 mm aggregate is 560 cubic meters per day, -9 mm sand is 320 cubic meters, and -6 mm sand is used. The production volume was 240 cubic meters, and the separated sediment yielded 480 cubic meters.

[0057] Of these, classified earth and sand with relatively low utility is supplied for embankment and earth covering of construction and civil engineering work. Total reached 1,120 cubic meters.

[0058] Therefore, as for the utilization of the produced aggregate in the construction industry, in the case of -25mm aggregate, it can be mainly used for road auxiliary base material, refilling of retaining wall, etc., and -9mm sand is used. In this case, it can be used for concrete products such as bricks, blocks, and boundary stones. In the case of −6 mm sand, it can be used for pipework fillers and concrete products, and its use can be expanded.

Although the preferred embodiment of the present invention has been described with reference to the accompanying drawings, the present invention is not limited to such an example. It is obvious that those skilled in the art can come up with various changes or modifications within the scope of the technical idea described in the claims for utility model registration. It is understood that it belongs to.

[0060]

[Effect of the invention]

 As described above, according to the present invention, an intermediate treatment device for construction waste that is environmentally friendly, efficiently recycles construction waste, and can effectively solve resource shortages and effectively conserve the environment. Provided. Furthermore, according to the present invention, concrete lumps, waste wood and asphalt concrete lumps generated at construction sites such as various types of construction and civil engineering work are collected, and the collected lumps are fed into the intermediate treatment device of the present invention. The crushing, sorting, washing, and other processes provided in the stages will produce high-quality recycled aggregate, but the characteristics of the waste, especially when the input waste goes through each process, will be produced. Sorting and washing according to the conditions can be performed accurately in a short time, and furthermore, the durability of the equipment has been improved, the quality of recycled aggregate has been improved, and the cost of consumables has been reduced. Environmentally friendly treatment and recycling of construction waste with functions is possible.

[Brief description of the drawings]

FIG. 1 is a conventional process chart for producing recycled aggregate using waste concrete.

FIG. 2 is a part of a process diagram of producing a construction waste recycled aggregate according to the present invention.

FIG. 3 is a part of a process chart for producing recycled aggregate of construction waste according to the present invention.

FIG. 4 is an explanatory view showing an overall installation state of the device of the present invention.

FIG. 5 is an enlarged view of the device of the present invention in a plan view, showing a position and arrangement of a transfer path and equipment for waste disposal.

FIG. 6 is a detailed sectional view showing the internal structure of the water tank applied to the present invention.

FIG. 7 is a block diagram showing another embodiment of the present invention, showing a state in which a processing step is further provided in addition to the present invention and connected in series.

FIG. 8 is a table showing a construction waste input amount and an aggregate production ratio when the present invention is implemented.

FIG. 9 is a table showing the amount of aggregate produced per day when the present invention is implemented.

[Explanation of symbols]

 10: Jaw crusher 20: Conveyor belt 21: Magnetic separator 22: Hopper 30: Screen (screen) 31: Perforated iron plate 32, 32a: Blower 40: Water tank tank 41: Water injection nozzle 42: Aggregate cleaning nozzle 43: Underwater Explosive tank 44: Waste separation rotating frame 50: Storage 60: Water recovery sedimentation tank 61a, 61b, 61c, 61d: Sedimentation tank 70: Cone crusher

Claims (1)

[Utility model registration claims] A first crushing means having a jaw crusher for collecting and introducing construction waste in which various wastes are mixed, and crushing the construction waste to a first dimension or less;
A first transfer belt means having a crushed waste smaller than the size placed thereon and transported to separate metal materials mixed in the waste by a magnetic separator, and provided with an impact mitigation means when aggregate falls. The first belt transferred by the transfer belt means;
The crushed waste below the size is dropped, and the vortex generated from the multiple blowers separates the earth and sand from the aggregate of the second size or more. A first sorting means provided with a perforated iron plate; and an aggregate having a second size or more selected by the first sorting means is charged, and the second size is formed by a high-pressure jet generated in an underwater explosive tank. A water tank for washing the above aggregate and raising suspended matter such as waste wood to separate the aggregate having the second size or more from the suspended matter; and a floating garbage collected by the water tank. A forced-floating means for forcibly transferring water and refuse to the outside by means of a refuse separation rotating machine; and a re-flow of the refuse-separated water to administer a flocculant for water purification and water replenishment. Communicate with each other in multiple stages A water collection / sedimentation tank separated by a sedimentation tank; provided in the water tank so that the aggregate having the second size or more washed by the water tank is sequentially drawn out to the outside; A second transfer belt means provided with a screen for separating water extracted from the aggregate having the second size or more and water; and an aggregate having the second size or more discharged by the second transfer belt means. A second crushing means provided with a jaw crusher for sequentially charging and crushing to a third dimension or less; and being connected to the second crushing means, loading and transferring aggregate crushed to a third dimension or less. While separating, the remaining metal material is separated by a magnetic separator.
A third transfer belt means provided with an impact mitigation means at the time of falling of the aggregate; and after separating the aggregate having the fourth dimension or less from the aggregate having the third dimension or less separated from the metal material, a plurality of blowers are used. A second sorting means provided with a perforated iron plate for generating a vortex and separating and discharging according to each dimension while vibrating at a constant cycle; 4th driven with a magnetic separator to be transported
Transfer belt means; and third crushing means having a cone crusher adapted to be loaded on the second transfer belt means after the transported aggregate has been re-crushed to a fifth dimension or less. Characterized by construction waste treatment equipment.