KR100923932B1 - Crusher for waste construction treatment using for vortex flow and chain type hammer - Google Patents

Abstract

PURPOSE: An intermediate handling crusher for construction waste using vortex flow and chain hammer is provided to crush the construction waste through plural stages to increase the quantity of the aggregate produced. CONSTITUTION: An intermediate handling crusher for construction waste comprises an airtight crushing bath(10), vortex flow crushing bath(20), and a chain hammer crushing unit(30). The vortex flow crushing bath crushes waste concrete. The chain hammer crushing unit crushes the waste concrete. A dust collector collects the foreign materials and sorts them out. The airtight crushing bath includes a corn unit employing a cylindrical unit(14) and an aggregate outlet(12). The cylindrical unit includes an air inlet(16) at one side, and inlet and foreign material outlet at the top.

Description

Crusher FOR WASTE CONSTRUCTION TREATMENT USING FOR VORTEX FLOW AND CHAIN TYPE HAMMER}

The present invention relates to a crusher for intermediate treatment of construction waste, and more particularly, a compressed fluid is tangentially input to a circular crusher to generate vortices in the crusher to crush waste concrete and peel off foreign substances, and is also connected by a chain. The present invention relates to a crusher for construction waste intermediate treatment using a vortex and a chain-type hammer capable of producing high-quality recycled aggregates by crushing waste concrete firstly crushed by hammer and vortex.

In Korea, large-scale industrial facilities and residential complexes have been built since the 1960s due to rapid economic development and urban development, and the development and reconstruction of these structures are aging as time goes by and the functions are lost. The generation of such construction wastes causes many social and environmental problems.

In particular, the aggregate produced by the recycling process of construction waste has a lot of problems in the field application due to the large amount of foreign matter and cement paste adhered to the raw aggregate, and many research and developments are underway to solve such problems.

An example of such a technique is a vortex collision crusher.

The vortex collision crusher is a method of crushing aggregate using the effects of mutual collision and friction between the waste concrete particles by the energy of the compressed gas. In Patent Publication No. 10-2004-0073116, Fluid Energy Mill (Fluid Energy Mill) is specified that the milling device of the energy mill of the compressed fluid is classified as follows according to the principle.

1) Swiveling air generation type of compressed fluid

2) mutual collision between compressed fluids

3) Collision type between compressed fluid and grinding mechanism

4) Swirl airflow and mutual collision using compressed fluid and vortex generator

Among the above principles, as the swirling air generation type of the compressed fluid, as the compressed fluid is introduced through the jet nozzle as shown in US Patent Nos. It forms a swirling airflow of almost sonic speed, and injects crushed material into this part so that crushing work by collision and mutual friction between particles occurs. Particles of small particle size to be pulverized are mostly discharged through the outlet located at the top or bottom of the center, and the particles of large sized particles are moved to the outside of the grinding chamber by centrifugal force caused by swirling airflow, and regrinding occurs. Grinding is performed. Most of them have circular grinding chambers, and various structures are applied for input of raw materials and discharge of fine powder.

Generally, the type of fracture is divided into fracture, chipping, and ablation. However, the existing developed devices are either fracture-type devices or ablation-type devices for simple fracture. As a device for crushing particles of a certain component, it is not suitable to be applied to the crushing of waste concrete containing a large amount of foreign substances.

In order to solve this problem there is a patent No. 10-0745173 (apparatus for producing recycled aggregates by crushing construction waste using the vortex).

According to the apparatus for producing recycled aggregates by crushing construction waste using the vortex by the applicant, the crushing force by the impingement plate increases the granularity of the aggregate due to chipping or crushing of the ablation, but it is difficult to control the particle size There is this.

The present invention is to solve the above problems, it is possible to produce a large amount of aggregate per unit time by crushing the waste concrete in a multi-stage by the mutual continuous action by the vortex and chain-type hammer, cement on the surface of the waste concrete The purpose of the present invention is to effectively peel off foreign substances such as paste, and to provide a crusher for intermediate treatment of construction waste using a vortex and a chain hammer capable of producing spherical aggregates without angles.

In addition, another object of the present invention is to crush only the pure aggregate that needs to be shredded after the foreign material on the surface of the waste concrete to produce high-quality recycled aggregate, it is possible to control the particle size of the recycled aggregate.

Construction waste intermediate treatment crusher using the vortex and chain hammer according to the present invention for achieving the object as described above, the closed crushing tank; A vortex crushing unit for crushing the waste concrete introduced into the crushing tank; A chain hammer crushing unit for crushing waste concrete together with the vortex crushing unit; And a dust collector configured to collect and sort foreign matter generated during crushing by the vortex crushing portion and the chain hammer crushing portion.

According to the crusher for construction waste intermediate treatment using the vortex and the chain hammer according to the present invention, the waste concrete is primarily crushed by the chain hammer, and then the primary crushed aggregate is crushed in the circumferential direction by the vortex. By colliding with plates or chains, the crushing efficiency can be increased by crushing secondarily, thereby increasing the yield of recycled aggregate per unit time.

And, by crushing the waste concrete by the crushing plate, the cement paste on the surface of the waste concrete is peeled off, so that the chain hammer can substantially increase the number of aggregates by crushing, thereby improving the crushing efficiency of the crushing plate by vortex In addition to increasing the granularity of aggregates, it is possible to increase the purity of recycled aggregates.

In addition, it is possible to adjust the energy applied to the aggregate by adjusting the rotational speed of the chain-type hammer, so that the particle size of the circulating aggregate can be variously adjusted to increase the utility as a crushing facility.

1 and 2, the crusher for construction waste intermediate treatment using the vortex and chain hammer according to the present invention, the closed crushing tank 10 for providing a space for crushing; A vortex crushing unit 20 for crushing the waste concrete (hereinafter, abbreviated as " waste cone ") introduced into the crushing tank 10; A chain hammer crushing portion 30 for crushing the waste cone together with the vortex crushing portion 20; The dust collector 40 is configured to collect and sort foreign matter generated during crushing by the vortex crushing unit 20 and the chain hammer crushing unit 30.

The crushing tank 10 is a closed cylinder structure in which only the waste cone inlet 11, the aggregate outlet 12, and the foreign matter outlet 13 are opened, and are detachably coupled to the lower portion of the cylindrical portion 14 and the cylindrical portion 14. Cones 15 may be made. The cylindrical portion 141 is provided with an air inlet 16 (shown in FIG. 2) to which the air outlet of the blower 21 to be described later is connected at one side in the tangential direction.

As for the cylindrical part 14, the collision plate 22 mentioned later is provided in the inner surface side, and the said cone is crushed by the collision of this collision plate 22 and a waste cone, The cone part 15 is the cylindrical part 14 The crushed aggregate is made in the form of a cone, the diameter becomes smaller toward the aggregate discharge port 12 at the bottom so as to discharge a predetermined amount.

Vortex-type crushing unit 20 is composed of a blower 21 for forcibly blowing air into the crushing tank 10, a plurality of crushing plate 22 for crushing the waste cone flowing by the blowing force of the blower 21 do.

The blower 21 blows air at a high pressure by a fan that is rotated by a power supply, and as shown in FIG. 2, the blower is arranged to match the tangential direction of the crushing tank 10.

Shredding plate 22 is to crush the waste cone flowing through the wind blowing in the tangential direction, made of a flat plate in order to increase the efficiency of crushing at a predetermined angle (forward direction relative to the flow direction of the wind) It is mounted along the circumferential direction while maintaining).

The shredding plate 22 may be worn or damaged over time even if its strength is strong. Thus, if the shredding plate 22 is damaged, the shredding efficiency will be reduced, so that the shredding plate 22 can be replaced to maintain the shredding efficiency at a low cost. It is desirable to be.

As an installation structure in which the crushing plate 22 is replaceable, for example, the crushing plate 22 is installed to be replaceable through the fixing frame 60. The fixing frame 50 is a fixing ring 52 which is coupled to the inner circumferential surface of the crushing tank 20 and is formed along the circumferential direction on the inner circumferential surface of the fixing ring 51 and has a fixing hole formed on the surface facing the center. It is made, the crushing plate 22 is provided with a fixing protrusion (22a) on the back. The fixing hole has a rail shape with an open upper portion. When the fixing protrusion 22a of the crushing plate 22 is pushed downward in accordance with the fixing hole of the fixing block 52, the fixing protrusion 22a is inserted into the fixing hole. do. Although not shown in the drawings, a cover (which may be a cover coupled to the upper portion of the cylindrical portion 14) may be included so that the crushing plate 22 slidingly coupled to the fixing block 52 does not escape upward.

As shown in FIG. 2, a damper 60 for adjusting the amount of air introduced into the crushing tank 10 may be further provided. Damper 60 is disposed so as to correspond to the air inlet 16 in the cylindrical portion 14 of the crushing tank 10, one end is rotatably coupled to the cylindrical portion 14 via the hinge 61, The opening means of the air inlet 16 is adjusted while rotating through the hinge 611 by a driving means (not shown).

The chain hammer crushing unit 30 is a drive motor 31 installed outside the crushing tank 10 in order to prevent damage due to the cone cone, power transmission belt 32 for transmitting the power of the drive motor 31, crushing Rotating shaft 33 which is mounted in the longitudinal direction inside the jaw 10 and connected to the power transmission belt 32, is installed through the chain 34 on the periphery of the rotating shaft 33 and with the rotating shaft 33 It consists of a hammer 35 to rotate and crush the waste cone.

As shown in FIGS. 1 and 2, the chain 34 prevents the hammer 35 and the rotating shaft 33 from being forced by the reaction in the opposite direction to the collision direction when the hammer 35 and the closed cone collide. The length is not limited to that shown in the drawings. The chain 34 may collide with the circulation aggregate directly, and at this time, the hammer 35 does not exert pressure due to the repulsive force.

The hammer 35 is typically made of the same material as that used as the grinding hammer, and the shape is not limited to that shown in the drawings. The fixing structure of the hammer 35 and the chain 34 forms a groove in the hammer 35, for example, inserts the chain 34 into the groove and inserts the fixing pin 26 into the hammer 35 and the chain ( Can be penetrated through 34).

The chain 34 and hammer 35 assembly is disposed radially around the periphery of the axis of rotation 33.

The crushing plate 22 and the chain-type hammer crushing unit 30 interlock with each other to crush the waste cone, and the crushing plate while the waste cone flows along the tangential direction of the crushing tank 10 by the blowing force of the blower 21 ( After colliding and colliding with 22), it flies to the hammer 35 and collides secondly by the hammer 35. Also, some waste cones collide with the hammer 35 to be shredded and then fly to the shredding plate 22 to be shredded. It is crushed by colliding secondarily by 22).

The chain hammer crushing unit 30 may adjust the crushing particle size by adjusting the rotational speed of the rotating shaft 33.

The dust collector 40 is connected to the foreign matter discharge port 13 of the crushing tank 10 through the duct 41, and the foreign matter in the crushing tank 10 is suctioned and sorted together with the air.

The crusher for construction waste intermediate treatment using the vortex and chain hammer of such a configuration operates as follows.

The fluid supplied to the blower 21 forms a vortex in the crushing tank 10.

During the process, if the waste cone is put into the crushing tank 10 through a conveyor or the like, the crushed tank 10 separates the foreign substances introduced together with the waste cone by centrifugal force and turbulent diffusion, and the waste cone is moved in the tangential direction of the vortex and crushed. It hits the plate 22 and the cement paste on the surface of the waste cone is crushed.

The aggregate in which the cement paste has been peeled off is thrown off to the hammer 35 side of the chain hammer crushing unit 30 and collided with the hammer 35 to be crushed and the angled portion is removed.

Referring to the crushing process of the waste cone in detail as follows.

When air is introduced along the tangential line of the crushing tank 10, the air rotates along the circumferential line of the cylindrical portion 14 of the crushing tank 10. This air is moved to the center of the crushing tank 10 by the centripetal force and is moved to the foreign matter discharge port (13). This rotational movement of the air has a relatively small radius to increase the tangential velocity (Tangential Velocity) and at the same time the pressure, temperature, speed deviation occurs from the center of the crushing tank 10 toward the outer wall. When the circulating aggregate continuously contacts such airflow, a tangential velocity component is developed and a centrifugal acceleration toward the crushing plate 22 is generated, thereby crushing the waste cone and separating the foreign matter.

The present invention can adjust the crushing force of the waste cone by adjusting the rotational speed of the waste cone by adjusting the cross-sectional area of the air inlet 16 through the damper 60 can produce a high-quality recycled aggregate.

The chain hammer crushing unit 30 is driven together with the vortex crushing unit 20, that is, when power is supplied to the driving motor 31, the rotary shaft 33 rotates through the power transmission belt 32. .

The chain 34 and the hammer 35 rotate by the rotation of the rotation shaft 333.

The hammer 35 and the chain 34 form a transverse film inside the crushing tank 10 (a film that forms a space for the aggregate to pass between the hammers 35 when the hammer 35 rotates).

Aggregate in which the crushing plate 22 is crushed and the cement paste is peeled (in the present invention, aggregate refers to crushed by the crushing plate 22) is a hammer 35 by the collision force with the crushing plate 22. It is bounced to, and the second fracture by the hammer 35 and the chain 34 hit. When the aggregate hits the hammer 35 and the chain 34, impact energy is transferred to the hammer 35 and the chain 34. The chain 34 absorbs the impact energy while vibrating by the impact energy transferred from the aggregate. . Therefore, since a large impact is not applied to the hammer 35 and the chain 34, it is possible to reduce the wear of the hammer 35 and the chain 34 while crushing the aggregate to a desired particle size.

In this crushing, the aggregate is pulverized into a circulating aggregate having a small particle size, and foreign matters such as cement paste on the surface of the circulating aggregate are peeled off and the angled portions of the aggregate are removed.

Some of the aggregates crushed by impacting the hammer 35 and the chain 34 may again be scattered toward the crushing plate 22 to be crushed again by colliding with the crushing plate 22, at which time the cement paste remaining in the aggregate is peeled off. Angled parts are removed.

In this way, the waste cone injected into the crushing tank 10 is crushed by impacting the crushing plate 22-hammer 35 a plurality of times to produce aggregates having a small particle size and no angled portions, and also foreign substances such as cement paste. Removed. Among these, aggregate (A) falls to the bottom through the inner circumferential surface side of the crushing tank 10 and between the hammers 35, and the dust and foreign matter (W) separated by the turbulence diffusion and centrifugal force (W) is the foreign matter outlet (13) By discharge through the aggregate (A) and foreign matter (W) is separated.

The foreign matter 2 is transferred to the dust collector 40 through the duct 41.

3A and 3B replace the shredding plate with the shredding chain 70.

The crushing chain 70 is provided along the circumferential direction on the inner circumferential surface of the cylindrical portion 14 of the crushing tank 10. Therefore, the waste cone flowing along the inner circumferential surface of the cylindrical portion 14 is crushed by colliding with the crushing chain 70, in this case, because the crushed chain 70 is a plurality of rings are connected in series, if the ring cone collides Since they are pushed in the direction of the impact through the connection part, the shock absorbed from the waste cone can be absorbed to reduce wear and prevent the indiscriminate cracking of the waste cone due to the large impact and obtain high quality shreds.

1 is a front view of a crusher for the construction waste intermediate treatment using the vortex and chain hammer according to the present invention.

Figure 2 is a plan view of the main portion of the crusher for construction waste intermediate treatment using the vortex and chain hammer according to the present invention.

3A and 3B are a plan view and a front view in which a crushing chain is applied to a crusher for construction waste intermediate treatment using a vortex and a chain hammer according to the present invention;

<Description of Signs for Main Parts of Drawings>

10: crushing tank, 20: vortex crushing unit

21 blower, 22 crushing plate

30: chain hammer crushing part, 31: motor

32: power transmission belt, 33: rotating shaft

34: chain, 35: hammer

40: dust collector, 50: fixing frame,

60: damper, 70: crushed chain

Claims (2)

A closed crushing tank 10; A vortex crushing unit 20 for crushing the waste concrete introduced into the crushing tank; A chain hammer crushing portion 30 for crushing waste concrete together with the vortex crushing portion; And, And a dust collector 40 for collecting and sorting foreign substances generated during crushing by the vortex crushing unit and the chain hammer crushing unit. The crushing tank 10 is detachably coupled to the lower portion of the cylindrical portion 14 and the cylindrical portion 14 is provided with an air inlet 16 on the one side in the tangential direction and the inlet 11 and the foreign matter discharge port 13 on the upper side A cone portion 15 having an aggregate outlet 12 open toward it, The vortex breaker 20 is, A blower 21 for blowing wind in a tangential direction through the air inlet of the crushing tank, a damper 60 installed at an air inlet of the crushing tank to adjust the opening degree of the air inlet, and an inner circumferential surface of the crushing tank It is mounted along the circumferential direction while maintaining a constant angle and includes a plurality of shredding plate 22 to crush the waste concrete by colliding with the air blown in a tangential direction through the blower and the waste concrete is introduced through the inlet; , The chain hammer crushing unit, Drive motor 31, a power transmission means for transmitting the power of the drive motor, a rotary shaft 33 mounted in the longitudinal direction inside the crushing tank and rotated by the power transmission means, the chain 34 around the rotation shaft Installed through) and the construction waste intermediate crusher using a vortex and chain hammer, characterized in that it comprises a hammer (35) to rotate with the rotary shaft to crush the waste concrete. The crusher of claim 1, wherein the crushing plate is a chain (70) installed at one or more stages along the circumferential direction on an inner surface of the cylindrical part of the crushing tank.

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