KR100909445B1 - Chain hammer crusher for high quality aggregate production at the construction waste treatment - Google Patents

Abstract

A chain hammer crusher for the intermediate treatment of the construction waste is provided to pulverize paste effectively and to remove the edged part, thereby improving the particle size. A chain hammer crusher for the intermediate treatment of the construction waste comprises a case(100) provided with a crushing chamber(111) having an input hole(112) and a discharge hole(113); a first chain type grinding part(120) installed inside the case to pulverize the construction waste put into the crushing chamber; and a plurality of chain bars(130) installed inside the case in the vertical length direction to hit secondly the circulation aggregate hit by the first chain type grinding part. The first chain type grinding part comprises a drive motor(121); a power transmission member(122) which transmits the power generated by the drive motor; a driving shaft(123) which is mounted in the crushing chamber of the case in one direction and is received with the power through the power transmission member so as to revolve; a rotor(124) which is formed in the circumference of the driving shaft; and a hammer(126) which is connected to the circumference of the rotor through a chain(125) and rotates together with the rotor to pulverize the construction waste. The rotor comprises a plurality of discs which are arranged along the shaft direction in the circumference of the driving shaft; and a fixed bar which is put into the chain to fix the chain with penetrating the circumference of the discs.

Description

Chain Hammer Crusher for High Quality Aggregate Production at the Construction Waste Treatment}

The present invention relates to a chain hammer crusher for the intermediate treatment of construction waste, and more particularly, to crush the construction waste (raw aggregate) by the physical impact of the hammer, and minimize the transfer to the hammer when crushing, crushed recycled aggregate To the second centrifugal collision without additional equipment, the impact transmission applied to the whole device is limited to a part of the vertical centrifugal hammer crusher for the construction waste intermediate treatment that can increase the safety of the device and obtain a high-quality recycled aggregate safely will be.

High-rise, large-scale facilities and east-east housing, which were built during the period of high growth since economic development, are now aging and being redeveloped and rebuilt. The demand for new construction projects, such as housing supply, is also steadily increasing, and the rapid increase in the amount of construction waste is inevitable. According to the 2000 Ministry of Environment's press release, construction wastes accounted for 34% of total industrial waste generation, and waste concrete increased from 23,577 tons / day in 1996 to 71,063 tons / day. It is estimated to generate 99,900 tons / day in 2010 and 289,470 tons / day in 2020.

Construction waste is similar to household waste and industrial waste. And the characteristics vary depending on the stage that occurs. Construction wastes are very large in volume and weight, requiring huge transportation and landfill costs when transporting or burying them.The timing of occurrence of waste is not constant throughout the year, and intensively occurs at specific times when reconstruction is carried out. The construction waste generated in this way is recycled more than 80% through the intermediate treatment company, but the recycling rate is falling due to the quality problems of the produced aggregate and the user's perception problem.

As a result, in December 2003, the Law on Promotion of Construction Waste Recycling was enacted in December 2003. In August, the "Circulation Aggregate Quality Standard" was finalized and the recycling aggregate quality certification was carried out from January 1, 2007. The recycling aggregate production company reinforces the quality of recycling aggregates and the construction company promotes recycling of recycling aggregates. An institutional basis for development has been formed.

In particular, recently, the Act on the Promotion of Recycling of Construction Wastes was amended and revised, and its main contents were to separate waste ascon from other construction wastes for discharge, intermediate treatment, etc. Ascon focused on recycling high value-added recycled ascon, such as requiring direct use of recycled ascon. However, development of pretreatment process for recycling waste concrete and waste ascon has not been completed. In this pretreatment process, crushing and classification are an important part of recycling waste concrete and waste ascone.

The crushing and crushing technology is the core technology for recycling the waste ascon and waste concrete, and the crushing and crushing process is a process that consumes a lot of energy, and it is possible to obtain the maximum output with low energy even if the powder having the same particle size is produced. Crushing and grinding technology is required. Aggregation of aggregates occurs by applying stress to the aggregates, and a crushing and grinding device is a device that induces sufficient stress to cause crushing. The form of stress has the form of compression, impact or shear and can be induced by consuming minimal energy only if the stress is appropriately shaped according to the physical properties of the aggregate. In addition, the method of applying stress to the particles is affected by the particle size. If the particle size is large, it is possible for each individual particle.However, when the particle size is small, the particles do not act as wings but form a group of particles so that the stress given is dispersed. The amount of stress given to the individual particles is relatively reduced so that no effective milling occurs. Therefore, the grinding equipment is designed in different shapes depending on the size of the particle size.

However, suitable shredders have not been developed to produce recycled aggregates by crushing and grinding waste concrete and waste ascon. Therefore, if the technology is applied to industrial sites, the following expected effects can be created.

① It will lay the foundation for the most efficient and economical production of recycled aggregate required by construction waste intermediate treatment company and asphalt concrete recycling company.

② It can provide the economic production technology of recycled aggregate required for each construction waste, which can greatly improve the competitiveness of related industries.

③ By localizing high-quality shredding technology, which mostly depends on imports, we can expect to enhance the competitiveness and economic feasibility of the industry.

④ The environmental burden can be reduced by recycling construction waste to high quality circulation resources.

As a result, many companies are producing recycled aggregates, but due to lack of technology and awareness, mandatory recycling of recycled aggregates has become obsolete.Each construction company has avoided low-grade recycled aggregates, so recycled aggregates are limited to cover and fill soils. It is a situation that causes a huge waste of resources.

As such, the aggregate coated with the paste and the coating material may not be used as a aggregate for ready-mixed concrete, but may only be used for simple reclamation or as an auxiliary base layer for covering soil.

In order to solve such drawbacks, techniques for removing pastes and coating materials using chemicals have been proposed, but the cost of using chemicals is continuously generated, resulting in increased burden and polluting the environment. .

The present invention is to solve the problems as described above, by crushing the raw aggregates by applying physical impact to the raw aggregates undergoing pretreatment process in one step and multi-stage, and effectively crushing the paste on the surface and removing the angular part An object of the present invention is to provide a chain hammer crusher for intermediate treatment of construction waste that can improve the particle size.

Chain hammer crusher for the construction waste intermediate treatment according to the present invention for achieving the object as described above, and a case having a grinding chamber therein; It is installed in the case and includes a primary chain-type crushing unit for pulverizing the construction waste put into the grinding chamber, wherein the primary chain-type crushing unit, the power to transfer the power generated by the drive motor, the drive motor A transmission shaft, a drive shaft mounted in one direction in the pulverization chamber of the case and receiving power through the power transmission member to rotate in place, a rotor formed at a circumference of the drive shaft, and connected to a circumference of the rotor through a chain; Rotating with the rotor is characterized by consisting of a hammer to crush the construction waste hitting.

According to the chain hammer crusher for the intermediate treatment of construction waste according to the present invention, the hammer is rotated by applying a physical impact to the construction waste while rotating, at this time, the impact energy transferred to the hammer is attenuated through the chain wear of the hammer by the impact energy It can minimize the durability of the equipment can improve the durability.

In addition, the construction waste is crushed in multiple stages through the primary chain type crushing unit and the secondary chain bar to obtain a small particle size circulating aggregate without using additional equipment, thereby reducing the cost, and impacting multiple stages of raw aggregates. By effectively peeling the cement paste in the raw aggregates to minimize the content of foreign matters, and obtain the high-quality recycled aggregates by controlling the particle size by adjusting the rotational angle of the angled corners and multi-stage grinding from the side of the mold can do.

In addition, by changing the rotational direction of the primary chain type crushing part when the parts such as the hammer are worn, the unworn part is changed to the collision direction of the raw aggregate, so that the machine can be operated normally without replacing the hammer with a new one. There is an advantage that can be reduced, and the grinding efficiency can be increased even for aggregates having a viscous flow such as waste asphalt concrete.

<Example 1>

1 and 2, the chain hammer crusher 100 for intermediate construction waste treatment according to the present embodiment includes a case 110 having a pulverization chamber 111 therein and an inside of the case 110. It is configured to include a primary chain-type crushing unit 120 for crushing the construction waste (hereinafter referred to as "waste") installed in the case 110.

The case 110 has an inlet 112 in the upper portion and an outlet 113 in the lower portion for inputting and discharging waste.

Case 110 may be provided with a guide 114 to guide the waste introduced into the inlet 112 to the primary chain-type grinding unit 120 side. Guide 114 is a plate-like structure may be disposed to be inclined downward toward the primary chain-shaped grinding unit 120 side.

The guide 114 is configured to divide the inlet 112 into two places so that any one of the two inlets 112 can be selected and opened, for example, the lower end is rotated to the inlet 112 through the hinge 114a. Possible combinations are arranged in the position of the solid line or the imaginary line of FIG. 1 while rotating through this hinge 114a to selectively open the direction of the inlet 112. Switching the inlet of the guide 114 may be made according to the rotation direction of the primary chain type grinding unit 120.

The primary chain type grinding unit 120 is mounted in the transverse direction inside the motor 121, the power transmission member 122 for transmitting the power of the motor 121, the grinding chamber 111, the one side is the power transmission member Drive shaft 123 connected to the rotation 122, the rotor 124 is arranged along the axial direction on the circumference of the drive shaft 123 and rotates with the drive shaft 123, the chain ( 125 is installed through the hammer 126 to rotate with the rotor 124 to crush the waste.

The rotor 124 is for connecting the chain 125 to the plurality of disks 124a and the peripheral edge of the disk 124a in which a plurality of disks 124a are stacked in a row along the axial direction around the drive shaft 123. It may be composed of a fixed rod (124b). That is, the fixing rods 124b may be fixed to the disks 124a and the chain 125 arranged in a row, and the bolts may be fastened to both ends thereof to fix the disks 124a and the chain 125.

When the chain 125 collides with the hammer 126 and the waste, the hammer 125 prevents the hammer 126 and the waste from overloading by the repulsive action in the opposite direction, and the length is not limited to that shown in the drawing. The chain 125 may collide directly with the waste, and in this case, the chain 125 and the waste are not burdened by the repulsive force.

Hammer 126 is typically made of the same material used as the hammer for grinding, the shape is not limited to those shown in the drawings. The fixing structure of the hammer 126 and the chain 125, for example, by forming a groove in the hammer 126, inserting the chain 125 in the groove and the fixing pin 127 to the hammer 126 and the chain ( It can be fixed through 125).

The chain 125 may not be arranged radially as shown in FIGS. 1 to 3, but for convenience of description, the chain 125 is illustrated to maintain a right angle with respect to the drive shaft 123.

A plurality of hammers 126 (shown by way of example in the figure) are connected to the circumference of one disk 124a at regular intervals along the circumferential direction to form one hammer set, and the hammer set is a drive shaft. 123 is configured not to overlap each other with the hammers of the hammer set that are adjacent when arranged in a line along the axial direction.

The hammer 126 is installed on one disk 124a at regular intervals along the circumferential direction,

In addition, the circumferential portion of the primary chain-shaped crushing unit 120, that is, the case 110, for the secondary crushing of waste (or aggregate) flying toward the inner wall of the case 110 by the primary chain-shaped crushing unit 120. A plurality of secondary chain bars 130 are installed on the inner wall side. Secondary chain bar 130 may have a length similar to the height of the case 110 and the upper end is fixed to the case 110 by a fixing pin 131.

Secondary chain bar 130 is preferably installed at regular intervals in the entire wall section of the inner wall side of the case 110.

The operation of the chain hammer crusher for construction waste intermediate treatment according to the present embodiment configured as described above is as follows.

Since the chain 125 is stretched downward when the machine is not running, the hammer 126 disposed below the centerline when viewed from the front of the rotor 124 will be stretched downward, and the hammer disposed above the centerline. 126 will be stretched to reach the perimeter of the rotor 124.

When power is applied to the motor 121 to drive the primary chain type grinding unit 120, the drive shaft 123 is rotated through the power transmission member 122.

Rotor 124 is rotated in the same direction by the rotation of the drive shaft 123, so that the chain 125 and the hammer 126 is rotated. At this time, due to the weight of the hammer 126, the chain 125 and the hammer 126 will rotate while drawing a curved shape corresponding to the right angle or right angle with respect to the drive shaft 123 as shown in FIG.

In this way, the waste is input through the inlet 112 while driving the primary chain-type grinding unit 120.

The waste is guided to the primary chain-type crushing unit 120 through the guide 114, and is blown by the rotating hammer 126 to be primarily crushed. When the hammer 126 and the chain 125 strikes the waste, the impact energy is transferred to the chain 125. The chain 125 absorbs the impact energy while vibrating by the impact energy transferred from the waste. Therefore, since a large impact is not applied to the hammer 126 and the chain 125, it is possible to reduce the wear of the hammer 126 and the chain 125 while crushing the waste to a desired particle size.

During the pulverization, the waste is pulverized into a circulating aggregate having a small particle size, and foreign substances such as ascone on the surface of the waste are peeled off and the angular portions of the circulating aggregate can be removed.

The circular aggregate crushed by the primary chain-type crushing unit 120 is blown toward the secondary chain bar 130 to collide with the secondary chain bar 130.

The secondary chain bar 130 hits the circular aggregate flying by its rigidity. At this time, as described above, the secondary chain bar 130 vibrates to absorb the impact energy and pulverize the circulating aggregate.

Some of the recycled aggregates impinging on the secondary chain bar 130 may be discharged directly through the discharge port 113, but some are blown back to the hammer 126 side is re-crushed by the hammer 126. The recycled aggregate pulverized by the hammer 126 may be crushed by colliding with the Daddy secondary chain bar 130. That is, the waste (circulating aggregate) is pulverized by reciprocating the primary chain type grinding unit 120 and the secondary chain bar 130 multiple times to obtain a circular aggregate having a small particle size without using a separate grinding equipment. .

On the other hand, the hammer 126 will wear because the crushing of construction waste is due to the physical collision with the hammer 126. At this time, since the rotation direction of the rotor 124 is one direction, only one side of the hammer 126 (the surface colliding with the waste) will be worn. Thus, if the hammer 126 is worn, the grinding efficiency will decrease, so the hammer 126 Change the direction of rotation of the waste to use the unworn side to crush the waste. The rotation direction of the rotor 124 can be easily controlled through the control of the drive motor 121. When the rotation direction of the rotor 124 is changed, the direction of the guide 114 is changed.

<Example 2>

3 and 4, the chain hammer crusher 100 for intermediate construction waste treatment according to the present embodiment is a multi-stage primary chain-type crushing unit 120 (although it is shown in two stages but two or more stages are possible). -1) 120-2 is provided.

Each primary chain type grinding unit 120-1 and 120-2 is configured in the same manner as the primary chain type grinding unit 120 of Embodiment 1 described above, and has a relatively upper primary chain type grinding unit. The recycled aggregate crushed by 120-1 is disposed to be crushed by the lower chain primary crushing unit 120-2, and the drawing shows the primary chain crushing unit 120-1 and 120-. An example of arrangement of 2) is shown.

As shown in FIG. 3, the primary chained crushers 120-1 and 120-2 are arranged such that the respective hammers 126-1 and 126-2 are alternately arranged and overlapped with each other when viewed from the front. Can be.

Two or more stages of the primary crushing unit (120-1) (120-2) may be driven at the same time, or any one may be selectively driven.

1 is a side view of a chain hammer crusher for construction waste intermediate treatment according to the first embodiment of the present invention.

Figure 2 is a front view of the chain hammer crusher for construction waste intermediate treatment according to the first embodiment of the present invention.

Figure 3 is a side view of the chain hammer crusher for construction waste intermediate treatment according to the second embodiment of the present invention.

Figure 4 is a front view of the chain hammer crusher for construction waste intermediate treatment according to the second embodiment of the present invention.

<Description of Signs for Main Parts of Drawings>

110: case, 111: grinding chamber

120: primary chain hammer, 121: drive motor

122: power transmission member, 123: drive shaft

124: rotor, 125: chain

126 hammer, 130 secondary chain bar

Claims (5)

A case 110 having a grinding chamber 111 having an inlet 112 and an outlet 113; A primary chain-type crushing unit 120 installed in the case to crush construction waste introduced into the crushing chamber; And It is installed in the upper and lower longitudinal direction inside the case includes a plurality of chain bars 130 for hitting the circulation aggregate hit by the primary chain-type crushing secondary, The primary chain-type grinding unit, the drive motor 121, the power transmission member 122 for transmitting the power generated by the drive motor, mounted in one direction in the grinding chamber of the case and the power through the power transmission member Drive shaft 123 that is received and rotated in place, the rotor 124 is formed in the circumference of the drive shaft, connected to the circumference of the rotor through the chain 125 and to blow and crush the construction waste while rotating with the rotor A hammer 126, The rotor is characterized by consisting of a plurality of disks (124a) arranged in a line along the axial direction in the circumferential portion of the drive shaft, a fixing rod (124b) to be inserted into the chain while fixing the chain through the circumference of the disk Chain crusher for intermediate construction waste treatment. delete delete The guide 114 of claim 1, wherein the guide 114 is formed in a plate shape and has one end rotatably coupled to the inlet of the case through a hinge 114a to divide the inlet into two and selectively open the direction of the divided inlet. Construction hammer intermediate treatment chain crusher, characterized in that it comprises a. A case 110 having a grinding chamber 111 having an inlet 112 and an outlet 113; A primary chain-type crushing unit 120 installed in the case to crush construction waste introduced into the crushing chamber; And It is installed in the upper and lower longitudinal direction inside the case includes a plurality of chain bars 130 for hitting the circulation aggregate hit by the primary chain-type crushing secondary, The primary chain-type grinding unit, the drive motor 121, the power transmission member 122 for transmitting the power generated by the drive motor, mounted in one direction in the grinding chamber of the case and the power through the power transmission member Drive shaft 123 that is received and rotated in place, the rotor 124 is formed in the circumference of the drive shaft, connected to the circumference of the rotor through the chain 125 and to blow and crush the construction waste while rotating with the rotor A hammer 126, The rotor includes a plurality of disks (124a) arranged in a line along the axial direction in the circumferential portion of the drive shaft, a fixing rod (124b) to be inserted into the chain to secure the chain through the circumference of the disk, The first chain-type crushing unit (120-1) (120-2) is a chain hammer crusher for construction waste intermediate treatment, characterized in that arranged in two or more stages.

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