KR100651232B1 - Apparatus and method for manufacturing recycle-aggregate using crushed construction waste - Google Patents

Abstract

The present invention relates to an apparatus and method for producing high-strength recycled aggregates using crushed construction waste, and to provide uniformity of strength reinforcement to the pores and surfaces of aggregates by a series of automated processes.

High-strength circulating aggregate manufacturing apparatus using crushed construction waste according to the present invention, aggregate supply means for supplying crushed aggregate (10); A first inclined plate 20 arranged to be inclined downward toward the front end to guide the aggregate supplied from the aggregate supply means to roll; A sprinkling means (30) for sprinkling the strength reinforcing agent on the top and the bottom of the first inclination plate so that the strength reinforcing agent is applied to the aggregate moving along the first inclination plate; A second inclined plate 40 for guiding the aggregate passing through the first inclined plate along a slope; A hot air fan (50) installed on the second inclined plate so that the strength reinforcing agent is cured while the aggregate is rolled and moved along the second inclined plate; A vibrating feeder 60 applying vibration to the aggregate passing through the second slope plate to finish the surface of the aggregate; And, it comprises a conveyor 70 for transporting and stabilizing the aggregate passed through the vibration feeder.

Construction waste, crushing, recycling aggregate, high strength, strength reinforcement

Description

Apparatus and method for producing high-strength recycled aggregate using crushed construction waste {APPARATUS AND METHOD FOR MANUFACTURING RECYCLE-AGGREGATE USING CRUSHED CONSTRUCTION WASTE}             

1 is a block diagram of a high-strength recycled aggregate manufacturing apparatus using crushed construction waste according to the present invention.

Figure 2 is a block diagram of a slope plate applied to the high-strength recycled aggregate manufacturing apparatus using crushed construction waste according to the present invention.

Figure 3 is a process diagram of a high-strength recycled aggregate manufacturing method using crushed construction waste according to the present invention.

Figure 4 is another illustration of the movement guide means applied to the high-strength circulating aggregate manufacturing apparatus using crushed construction waste according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: aggregate supply unit, 20: the first inclined plate

21,22: leg, 30: watering means

31 tank, 32 pump

33,34: supply pipe, 33a, 34a: water drain

35: return tube, 40: second inclination plate

50,90: hot air fan, 60: vibration feeder

70: conveyor, 80: cylindrical drum

The present invention relates to an apparatus and method for manufacturing high-strength recycled aggregate using crushed construction waste, and more particularly, to minimize the air gap of aggregate when reinforcing aggregate is produced using construction waste, to reinforce the strength of aggregate, and to provide good circulation. The present invention relates to a high-strength aggregate manufacturing apparatus using crushed construction waste to provide aggregate.

According to the so-called development priority policy and high-growth policy promotion, it has been a reality that the adverse environmental problem in Korea has been somewhat out of consideration.

However, as a result of this growth-oriented policy, the growth of various wastes and pollutants in the by-products has reached an urgent point which can no longer be delayed.

In particular, the construction industry wastes of various constructions and civil works show a sharp increase, mainly due to the recent redevelopment, activation of reconstruction and dismantling of structures due to aging and deterioration of urban and local buildings. do.

In general, the construction waste refers to soil, sand, gravel, earth or soil mixed with rubbish and waste materials, concrete blocks, waste wood, asphalt concrete blocks, and construction sludge. One of the main characteristics is that most of the construction wastes are composed of inorganic materials, which are harmless to the human body, and various types of wastes are discharged in a mixed state, and the treatment is complicated and difficult. It is said to provide the cause of indifference between the government and the industry regarding the construction waste disposal.

Such indifference entailed a waste of valuable resources and caused deterioration of the quality of the recycled aggregates, and most of the utilization of the recycled aggregates was only used for earthworks, such as fill, cover, and landfill.

Therefore, by realizing the recycling through the management of such wastes, it is necessary to actively minimize the environmental pollution, replace the scarce resources, and reduce the cost of the construction industry base.

To this end, the Law on the Promotion of Saving and Recycling of Resources has recently been enacted in Korea, and the recycling of construction waste has become mandatory, and various production facilities for recycling have been produced and applied to various industrial sites.

As described above, in accordance with the mandatory recycling of construction wastes, various devices have been proposed to handle the partial or partial disposal of waste from waste disposal to the conventional waste disposal method.

At present, each construction company is bringing crusher to the construction site to recycle the waste materials, but this is often the case that various kinds of construction waste materials are mixed and discharged. It was difficult to secure.

In addition, most of such devices are foreign products whose construction waste generation characteristics are different from those of domestic and foreign properties, but mimic the technology, and their utility is very low, and their use is limited.

In addition, the production of recycled aggregate using construction waste, or the method of automatically separating the waste was not expected to improve the quality even with advanced foreign technology.

Construction waste recycling apparatus according to the prior art, the hopper to which the construction waste is usually input, one or more shredding means for shredding the construction waste discharged through the hopper, the magnetic means for sorting the rebar from the construction waste, the washing means for washing the construction waste It comprises a screen for screening construction waste by particle size, a conveyor for transporting construction waste, these devices are arranged in place.

On the other hand, the aggregate is a construction waste for a long time as the structure of the building, etc., the strength is very weak due to aging. At this time, since most aggregate regeneration devices are to remove other kinds of foreign matter, the circulating aggregate is also in a very weak state. Therefore, when the recycled aggregates are used, the structure may be weak, and a disadvantage arises in that a separate reinforcement is used to reinforce the structure.

In order to solve this drawback, a technique for reinforcing aggregate strength has been proposed. However, since the aggregate is soaked in the strength reinforcement reservoir for a certain time so that the strength reinforcement is applied, the strength reinforcement may not be applied unnecessarily or uniformly. I can't.

The present invention is to solve the above problems, the production of high-strength recycled aggregates using crushed construction waste to effectively reinforce the strength of the recycled aggregates by a series of automated processes when producing recycled aggregates using construction wastes The purpose is to provide a device.

In order to achieve the above object, a high-strength circulating aggregate manufacturing apparatus using crushed construction waste according to the present invention, the aggregate strength through a series of processes, such as the input of the aggregate-spraying strength reinforcement-curing-separation of foreign matter-stabilization. In particular, it is characterized in that it is configured to produce a high-strength recycled aggregate by allowing the strength enhancer to be applied and hardened by a hot air blower through the watering means while the aggregate moves along one or more inclined plates.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

As shown in Figure 1, the high-strength circulating aggregate manufacturing apparatus using the crushed construction waste according to the present invention, the aggregate supply means 10 and the aggregate supply means 10 is formed to be inclined downward toward the tip end with the aggregate aggregate Aggregate supplied from the supply unit 10 is sprinkling means 30 for sprinkling strength reinforcement to the first tilt plate 20 and the aggregate that is rolled along the first slope plate 20 and transported by its own weight without a separate driving source (30) ), And the second inclined plate 40 is arranged in succession to the lower end of the first inclined plate 20, and the aggregate is rolled along the second inclined plate 40, so that the aggregate is transported by the weight of the aggregate Applying heat to the aggregate) to apply a vibration to the hot air blower 50 to harden the strength reinforcement applied to the aggregate and the aggregate (hardening reinforcement aggregate hardened) passed through the second slope plate 40 to remove foreign matters on the surface. Vibrating Feeder (60) And, and comprises a conveyor 70 for transporting the circulation aggregate passed through the vibration feeder (60).

Aggregate supply means 10 may be a hopper for receiving and supplying aggregate, a conveyor for transporting aggregate, and the like.

The first inclined plate 20 is a conveying means for conveying aggregate, and the aggregate is rolled by its own weight so that the strength enhancer is uniformly applied to the voids and the surface of the aggregate. That is, the first inclined plate 20 is preferably an angle at which the aggregate can move smoothly without stagnation, and also, the movable angle of the aggregate may vary depending on the weight of the aggregate. It is configured to adjust. For example, as shown in FIG. 2, for example, the front leg 21 is rotatably coupled to the first inclined plate 20, and the rear leg 22 is height-adjustably coupled. Composed of two frames 22a and 22b, the angle of the first inclined plate 20 can be adjusted by adjusting the height of the rear leg portion 22.

The sprinkling means 30 includes a tank 31 in which the strength enhancer is stored, a pump 32 for transferring the strength enhancer stored in the tank 31, and a first and second supply pipes for transferring the strength enhancer fed by the pump 32. (33,34) and the first and the second supply pipes (33,34) may be made up of the sprinkling holes (33a, 34a) for sprinkling the strength enhancer.

The first supply pipe 33 is branched from the first inclined plate 20 at a predetermined height along the longitudinal direction of the first inclined plate 20 while having a predetermined height (a height such that interference does not occur when the aggregate is rolled). The strength reinforcing agent is sprayed on the aggregate rolling along the first inclination plate 20, and the second supply pipe 34 is disposed on the top of the first inclination plate 20 to supply the strength reinforcing agent to the bottom of the first inclination plate 20. do.

When the strength enhancer is supplied to the aggregate of the first inclined plate 20, not all the strength enhancers are applied to the aggregate, so the lower end of the first inclined plate 20 to recover the strength enhancer not applied to the aggregate to the tank 31. The return pipe 35 is installed to be connected to the tank 31.

Strength reinforcing agent can be used in the liquid clay, here, fine powder stone and the like can be mixed. In addition, a small amount of a curing agent and a binder for adjusting the curing conditions may be optionally added.

The second inclined plate 40 is a conveying means for conveying aggregate, so that the aggregate coated with the strength reinforcing agent is rolled by its own weight while passing through the first inclined plate 20. Therefore, the second inclination plate 40 is also configured to adjust its angle like the first inclination plate 20. Since the angle adjusting structure of the second inclined plate 40 may be applied in the same manner as the first inclined plate 20 described above, a detailed description thereof will be omitted.

In order to apply the strength reinforcement to all parts of the aggregate and to harden, the first and second slope plates 20 and 40 need to be rolled when the aggregate moves along the first and second slope plates 20 and 40 so that the uneven portions are formed. May be That is, when the aggregate moves along the inclined plate (20, 40) will be caught in the uneven portion can rotate.

The hot air fan 50 is installed on the upper portion of the second inclined plate 40 to harden the strength reinforcement applied to the aggregate rolling along the second inclined plate 40.

The vibration feeder 60 removes foreign substances on the aggregate surface by applying vibration to the aggregate of the strength reinforcing agent through the hot air blower 50.

Conveyor 70 is to pass the vibration feeder 60 to stabilize the aggregate while transporting the aggregate is removed, such as debris storage.

Hereinafter, a method of manufacturing recycled aggregate using crushed construction waste according to the present invention will be described.

(S10) Aggregate input. When the aggregate selected by the construction waste recycling apparatus is put into the aggregate supply means 10, the aggregate is supplied to the first slope plate 20 through the aggregate supply means 10.

(S20) Apply strength modifier. Aggregate supplied to the first slope plate 20 is rolled down the inclination of the first slope plate 20. Considering the rolling speed of the aggregate before the input of aggregate, the angle of the first inclined plate 20 and the second inclined plate 40 is set by the following method, and the spraying means 30 is operated so that the strength modifier can be sprayed. do. When the frames 22a and 22b of the rear leg portion 22 of the first slope plate 20 are inserted or withdrawn, the angle is adjusted while the first slope plate 20 rotates through the front leg portion 21. Since the angle adjustment of the second inclination plate 40 is the same as the angle adjustment of the first inclination plate 20, it is omitted.

That is, the strength modifier sprayed from the first sprinkler 33a is applied to the pores and the surface of the aggregate while rolling down the first inclined plate 20, and, as the aggregate rolls, the bottom portion of the first inclined plate 20. While rolling along, the strength modifier supplied to the bottom through the second sprinkler 34a is applied to the pores and the surface of the aggregate.

Aggregate that has passed through the first slope plate 20 is transferred to the second slope plate 40, the strength control agent is not applied to the aggregate and descended to the lower side of the first slope plate 20 along the bottom of the first slope plate 20 is returned. After being returned to the tank 31 through the pipe 35, the pump 32 is supplied to the first and second supply pipes 33 and 34 again by the pressure of the pump 32.

(S30) Strengthening agent hardening. Aggregate conveyed from the first inclined plate 20 to the second inclined plate 40 is rolled down along the inclination of the second inclined plate 40, in this process the strength modifier by the heat of the hot air blower 50 and It hardens on the surface. At this time, since the aggregate is rolled by the second inclined plate 40 without being transferred by a conveyor or the like, heat is applied to all parts of the aggregate so that the strength reinforcing agent does not fall from the aggregate.

(S40) vibration separation. Aggregates may be attached to aggregates to which the strength reinforcing agent is applied by passing through the second slope plate 40, and aggregates may be stuck to each other. Foreign matter on the surface is removed. The vibration separation step is not an essential process and can be used selectively as needed.

(S50) Circulating aggregate transfer. The circulating aggregate from which foreign matter is removed is stabilized while being transferred through the conveyor 70, and stored in a circulating aggregate storage.

Figure 4 shows another example of the movement guide means applied to the high-strength circulating aggregate manufacturing apparatus using crushed construction waste according to the present invention, the downstream side of the first inclined plate 20, the cylindrical drum 80 is rotated in an inclined state And a hot air blower 90 is provided at the outlet side of the cylindrical drum 80 to supply hot air to the inside of the cylindrical drum 80 to cure the strength reinforcing agent of the aggregate moved along the inside of the cylindrical drum 80. . Cylindrical drum 80 may be formed with a porous portion through which foreign matters can be discharged.

According to the present embodiment, when the aggregate passing through the first inclined plate 20 is supplied to the inside of the cylindrical drum 80, the surface is heated by the hot air supplied from the hot air blower 90 while being gradually moved by the rotation of the cylindrical drum 80. The strength enhancer applied to it is cured.

As described above, according to the apparatus and method for manufacturing high-strength recycled aggregate using crushed construction waste according to the present invention, the strength of the aggregates and the surface of the aggregate through a series of processes such as the application of strength reinforcement, curing, vibration separation, stabilization Since the reinforcing agent is uniformly applied, it is possible to supply high-quality recycled aggregates, thus improving the reliability of the recycled aggregates and increasing the scope of application, thereby promoting the construction waste recycling industry.

In addition, there are effects such as the strength reinforcement can be continuously circulated to reduce the cost.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (8)

delete Aggregate supply means for supplying crushed aggregate (10); A movement guide means for guiding the aggregate supplied from the aggregate supply means to move; Watering means for sprinkling strength enhancers on the pores and surfaces of the aggregates moved along the movement guide means; A hot air fan for curing the strength reinforcing agent by applying hot air to the aggregate coated with the strength reinforcing agent by the watering means; In the high-strength circulating aggregate manufacturing apparatus using crushed construction waste comprising a conveyor 70 for transporting and stabilizing the aggregate passed through the hot air fan, The movement guide means, the first inclined plate 20 which is downstream of the aggregate supply means and disposed downwardly inclined downward toward the tip portion of the watering means and guides the aggregate supplied from the aggregate supply means to roll down. ; The second inclined plate 40 is disposed on the lower end of the first inclined plate toward the front end and is disposed below the hot air fan, the second inclined plate 40 for guiding the aggregate passing through the first inclined plate to be inclined. High-strength recycled aggregate manufacturing apparatus using crushed construction waste. 3. The crushing construction according to claim 2, further comprising a vibration feeder (60) installed on the downstream side of the second inclined plate to vibrate the aggregate having the strength reinforcing agent applied thereto to remove foreign substances. High strength recycled aggregate manufacturing device using waste. According to claim 2, The first and second inclined plate is entered by the front and rear legs, the front leg is composed of two frames rotatably coupled to the inclined plate, the rear leg is releasably connected, High-strength recycled aggregate manufacturing apparatus using crushed construction waste, characterized in that configured to adjust the angle of the inclined plate according to the height change of the frame. Aggregate supply means for supplying crushed aggregate (10); A movement guide means for guiding the aggregate supplied from the aggregate supply means to move; Watering means for sprinkling strength enhancers on the pores and surfaces of the aggregates moved along the movement guide means; A hot air fan for curing the strength reinforcing agent by applying hot air to the aggregate coated with the strength reinforcing agent by the watering means; In the high-strength circulating aggregate manufacturing apparatus using crushed construction waste comprising a conveyor 70 for transporting and stabilizing the aggregate passed through the hot air fan, The movement guide means, the first inclined plate 20 which is downstream of the aggregate supply means and disposed downwardly inclined downward toward the tip portion of the watering means and guides the aggregate supplied from the aggregate supply means to roll down. ; It is installed on the downstream side of the first inclined plate and the high-strength recycled aggregate manufacturing apparatus using a crushed construction waste, characterized in that the cylindrical drum (80) for conveying aggregate while rotating through the drive means. The water spraying device according to claim 2 or 5, wherein the watering means comprises: a tank (31) in which the strength enhancer is stored, a pump (32) for pumping the strength enhancer stored in the tank, and a predetermined length along the longitudinal direction on the first inclined plate. A plurality of water supply holes 33a are provided at intervals and are connected to the pump to provide a plurality of first supply pipes 33 for spraying strength reinforcement on the first inclined plate, and in a width direction on an upper end side of the first inclined plate. A second supply pipe 34 having a plurality of spray holes 34a and a return pipe connected to a lower portion of the first slope plate and the tank so that the strength enhancer recovered from the first slope plate is returned to the tank. High strength circulating aggregate manufacturing apparatus using crushed construction waste, characterized in that configured to include (35). delete (S10) supplying aggregate from which crushing and foreign matters are removed; (S20) spraying the strength reinforcing agent to the voids and the surface of the aggregate while the supplied aggregate is rolling along the slope; (S30) applying heat to cure the applied strength enhancer while the aggregate moves along the slope; (S50) and stabilizing by transporting the aggregate of the surface; (S40) The high strength recycled aggregate manufacturing method using the crushed construction waste comprising the step of removing foreign matter from the surface by applying a vibration to the aggregate hardened by the strength reinforcing agent (S30).

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