EP3427846A1 - Vibrating screen device - Google Patents
Vibrating screen device Download PDFInfo
- Publication number
- EP3427846A1 EP3427846A1 EP17763095.1A EP17763095A EP3427846A1 EP 3427846 A1 EP3427846 A1 EP 3427846A1 EP 17763095 A EP17763095 A EP 17763095A EP 3427846 A1 EP3427846 A1 EP 3427846A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- case
- discharge chute
- discharge
- vibration
- residual material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
Definitions
- the present invention relates to a vibration sieve device, and more particularly to a vibration sieve device that includes a chute for discharging a material screened by the vibration sieve device.
- a sieve that includes a net having a predetermined mesh is used. That is, the mixture can be screened by putting the mixture in the sieve and by swinging or vibrating the sieve.
- the vibration sieve device includes: a supply part configured to supply a mixture; a screen (net) disposed horizontally or slightly obliquely; a vibration part configured to vibrate the net; a discharge part configured to discharge a screened material; and an oversize material discharge part configured to discharge a material remaining on the screen.
- a discharge chute is used in general as the oversize material discharge part configured to discharge a material remaining on the screen from the vibration sieve device.
- the discharge chute has an inclined inner bottom surface. With the supply of a material from one end of the discharge chute onto the inner bottom surface, the material slides or rolls on the inner bottom surface so that the material can be discharged from the other end of the discharge chute.
- Patent Document 1 JP-UM- A-7-25975
- a material is supplied to the discharge chute by letting the material fall onto the inner bottom surface of the discharge chute from the oversize material discharge part of the vibration sieve device.
- the material discharged from the oversize material discharge part has a certain degree of size. Accordingly, an impact generated when the material falls onto the inner bottom surface of the discharge chute is large and hence, there may be case where the inner bottom surface of the discharge chute is deformed or damaged due to the impact. When such damage occurs, the movement of the material on the inner bottom surface of the discharge chute becomes difficult. In a worst case, there is a possibility that the discharge chute is clogged with a material. Accordingly, when the inner bottom surface of the discharge chute is damaged, maintenance such as repair becomes necessary so as to maintain the movement of the material.
- a method is considered where a wall thickness of a material used for forming the discharge chute is increased or a material property of such a material is changed.
- a discharge chute is formed using an iron plate made of carbon steel or the like, the increase in a wall thickness of the material gives rise to drawbacks such as lowering of treatment ability or acceleration of the occurrence of cracks due to the increase in a weight of the vibration sieve device.
- drawbacks such as lowering of treatment ability or acceleration of the occurrence of cracks due to the increase in a weight of the vibration sieve device.
- a discharge chute is manufactured using a raw material that is light-weight and has high durability compared to an iron plate, there is a possibility that a burden on cost for the manufacture and the maintenance of the vibration sieve device becomes high. Further, it is not always the case that such a material is superior to an iron plate with respect to a repeatedly applied stress.
- vibration generated by the vibration sieve device cannot be used for moving a material and hence, it is necessary to smoothly supply the material from the vibration sieve device to the fixed chute.
- the material supplied to the fixed chute from the vibration sieve device must be smoothly moved on the fixed chute.
- a method for smoothly moving the material on the fixed chute considered is a method where a difference in elevation that the material falls from the vibration sieve device to the fixed chute is increased or a method where inclination of an inner bottom surface of the fixed chute is increased or the like, for example.
- a difference in elevation or an inclination angle is limited because of restriction imposed on the connection with a succeeding step, an installation space or the like and hence, it is not always possible to ensure a proper difference in elevation or a proper inclination angle. Further, when a difference in elevation is increased, an impact generated when the material falls on an inner bottom surface of the fixed chute is increased and hence, impact resistance is lowered even when vibration resistance is increased.
- the present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a vibration sieve device capable of preventing the occurrence of damage to a chute while maintaining discharge of a material using the chute.
- a vibration sieve device is a vibration sieve device including a case; a screen disposed inside the case; and a vibration unit configured to vibrate the case, characterized in that the case has a residual material discharge port configured to discharge a residual material remaining on the screen after screening to an outside of the case, the case includes a discharge chute configured to discharge the residual material discharged from the residual material discharge port, the discharge chute having an inner bottom surface where one end is disposed near the residual material discharge port of the case and the inner bottom surface is downwardly inclined from the one end to another end of the inner bottom surface, and the discharge chute is disposed so as not to be brought into contact with the case in a state where the case is not vibrated.
- a vibration sieve device is the vibration sieve device according to the first invention, characterized in that a damping member is disposed between the discharge chute and the case, and the damping member is disposed such that the discharge chute is brought into contact with the case by way of the damping member when the vibration unit vibrates the case.
- a vibration sieve device is the vibration sieve device according to the first or the second invention, further including a leg portion configured to fix the discharge chute to a foundation or the like, characterized in that the leg portion includes a moving portion configured to hold the discharge chute in a movable manner along an axial direction of the leg portion, and the moving portion includes an elastic member extendable and compressible along the axial direction of the leg portion.
- a vibration sieve device is the vibration sieve device according to the third invention, further including a plurality of the leg portions, characterized in that each of the leg portions includes an axial length adjusting portion for adjusting a length of the leg portion.
- a vibration sieve device is the vibration sieve device according to the first, the second, the third or the fourth invention, characterized in that a layer made of ultrahigh molecular weight polyethylene is formed on the inner bottom surface of the discharge chute.
- the case and the discharge chute are not fixed to each other, when the case, which is vibrating, is brought into contact with the discharge chute, vibration of the case can be transmitted to the discharge chute.
- vibration of the case can be converted into a force that moves a residual material in the discharge chute and hence, the residual material can be smoothly moved in the discharge chute.
- vibration applied to the discharge chute can be decreased and hence, the occurrence of damage to the discharge chute due to vibration can be prevented.
- the case and the discharge chute are brought into contact with each other by way of the damping member and hence, damage to the chute, which occurs when the case and the discharge chute are brought into contact with each other, can be prevented.
- the discharge chute is held by the elastic member in a movable manner and hence, the discharge chute can be easily vibrated due to the vibration of the case.
- a height of the discharge chute or inclination of the inner bottom surface can be adjusted by adjusting the length of the leg portion and hence, the discharge chute can be brought into a proper state according to a state of the residual material.
- an impact generated when a residual material falls can be alleviated and hence, the occurrence of damage to the discharge chute can be suppressed.
- the vibration sieve device according to the present invention is provided for screening a mixture containing a plurality of materials having different sizes, and is characterized in that the vibration sieve device can stably discharge a screened residual material while preventing the occurrence of damage to a chute.
- the vibration sieve device according to the present invention can be used in various applications where a mixture is screened.
- the vibration sieve device according to the present invention can be used as a device that screens a mixture manufactured in a preceding step, and supplies a material having a predetermined size to a succeeding step or the like in a manufacturing facility.
- a high pressure acid leach (HPAL) process, ore separation or the like can be named.
- the vibration sieve device according to the present invention can be used as a device that separates oversized ores containing undesired rocks or the like from valuable ores and discharges these materials.
- the vibration sieve device 1 is a device that screens a mixture supplied from another device or the like into a material having a predetermined size or less and a residual material MR by a screen 3, and supplies the screened material to another device or the like.
- the vibration sieve device 1 according to the present embodiment is characterized by a discharge chute 10 that discharges the residual material MR, first, the overall configuration of the vibration sieve device 1 according to the present embodiment is described.
- symbol 2 indicates a case of the vibration sieve device 1 according to the present embodiment.
- the case 2 is a hollow member, and a mixture is supplied to the inside of the case 2 from above.
- the case 2 is disposed in a movable manner with respect to a base B such as a floor by way of a damping member such as a spring, and is connected to a vibration unit that vibrates the case 2 vertically.
- the screen 3 is disposed in the inside of the case 2 so as to vertically divide a space formed in the case 2.
- the screen 3 is a sheet-like or a plate-like member such as a net in which apertures that penetrate from a front side to a rear side of the member are formed. That is, the screen 3 is provided such that when a mixture is supplied to an upper surface of the screen 3, a material having a size smaller than a predetermined size is allowed to pass through apertures formed in the screen 3 and to fall downward, while a residual material MR larger than the material in size remains on the screen 3.
- a residual material discharge port 2c is formed on a discharge end portion (a right end in Fig. 1 ) of the case 2.
- the residual material discharge port 2c is disposed such that an upper end of the residual material discharge port 2c is positioned above the screen 3. That is, the residual material discharge port 2c is disposed such that the residual material MR on the screen 3 can be made to fall to the outside.
- a discharge chute 10 is disposed near the discharge end portion of the case 2.
- the discharge chute 10 has a space 10h surrounded by a bottom plate 11 and a cover 12, and is disposed such that one end portion of the discharge chute 10 covers the residual material discharge port 2c of the case 2.
- the bottom plate 11 of the discharge chute 10 is disposed such that one end portion of the bottom plate 11 extends to an area below the discharge end portion of the case 2, and an inner bottom surface 11a of the bottom plate 11 is inclined downwardly from one end portion to the other end portion of the inner bottom surface 11a (from a left end toward a right end in Fig. 1 ).
- the discharge chute 10 is mounted on the base B or the like using a plurality of leg portions 15 independently of the case 2.
- the discharge chute 10 is held by a plurality of leg portions 15 such that the discharge chute 10 is not brought into direct contact with the case 2 in a state where the case 2 is not vibrated.
- the screen 3 can screen the mixture into a screened material and a residual material MR. Then, the residual material MR on the screen 3 can be supplied to the discharge chute 10 through the residual material discharge port 2c.
- the discharge chute 10 is disposed such that the inner bottom surface 11a of the bottom plate 11 is inclined downwardly from one end portion to the other end portion. Accordingly, a residual material MR in the space 10h of the bottom plate 11 slides or rolls on the inner bottom surface 11a of the bottom plate 11 and moves toward the other end of the discharge chute 10.
- a residual material MR supplied from the residual material discharge port 2c of the case 2 to the discharge chute 10 can be discharged from the other end of the discharge chute 10 to the outside of the discharge chute 10 through the space 10h of the discharge chute 10.
- the screen 3 may be arranged horizontally, or may be disposed in a downwardly inclined manner toward the residual material discharge port 2c by slightly inclining the screen 3.
- the position of a residual material MR on the screen 3 changes due to vibration of the case 2 and hence, even when the screen 3 is arranged horizontally, the residual material MR can be moved to the residual material discharge port 2c.
- the residual material MR can be moved to the residual material discharge port 2c within a shorter time and with certainty.
- a method of discharging the material is not particularly limited.
- the material may be discharged to the outside by forming a discharge port in a bottom plate of the case 2, or the material may be directly made to fall into a tank or the like without providing a bottom plate.
- the discharge chute 10 is held by a plurality of leg portions 15 such that the discharge chute 10 is not brought into direct contact with the case 2 in a state where the case 2 is not vibrated.
- the discharge chute 10 is configured such that vibration of the case 2 is transmitted to the discharge chute 10 when the case 2 is vibrated.
- one end portion of the bottom plate 11 is arranged below the lower end portion of the case 2.
- one end portion of the bottom plate 11 is arranged below the discharge end portion of the case 2 at the position where the residual material discharge port 2c is disposed.
- One end portion of the bottom plate 11 is arranged in a state where one end portion is spaced apart from a lower end of the discharge end portion of the case 2.
- a vibration transmission portion 11b is formed on one end portion of the bottom plate 11.
- a damping member 20 is mounted on an upper surface of the vibration transmission portion 11b.
- the damping member 20 is made of a raw material having elasticity such as hard rubber or a silicon resin.
- damping member 20 An upper surface of the damping member 20 is not brought into contact with a lower end portion of the case 2 in a state where the case 2 is not vibrated. However, the damping member 20 is disposed such that the upper surface of the damping member 20 can be brought into contact with the lower end portion of the case 2 when the case 2 is vibrated.
- the damping member 20 is disposed such that a gap that is shorter than a stroke of vertical movement of the case 2 when the case 2 is vibrated is formed between the upper surface of the damping member 20 and the lower end portion of the case 2 in a state where the case 2 is not vibrated.
- the damping member 20 is disposed such that a gap L between the upper surface and the lower end portion falls within a range of approximately 50 to 100 mm in a state where the case 2 is not vibrated.
- vibration of the case 2 is transmitted to the discharge chute 10 only in a state where the case 2 is brought into contact with the damping member 20.
- vibration applied to the discharge chute 10 can be reduced. That is, a force that the discharge chute 10 receives due to vibration of the case 2 can be reduced and hence, the occurrence of damage to the discharge chute 10 due to such vibration can be prevented.
- the lower end portion of the case 2 and the vibration transmission portion 11b of the bottom plate 11 may be brought into contact with each other directly or by way of the damping member 20 in a state where the case 2 is not vibrated. Also in this case, it is sufficient that a state is brought about where the lower end portion of the case 2 and the vibration transmission portion 11b of the bottom plate 11 are separated from each other when the case 2 is vibrated (such a state also including a state where the lower end portion of the case 2 or the vibration transmission portion 11b of the bottom plate 11 is separated from the damping member 20).
- the discharge chute 10 can be effectively vibrated due to vibration transmitted from the case 2. That is, even when vibration transmitted from the case 2 is not so large, it is possible to generate vibration in the discharge chute 10 to an extent that a residual material MR can be smoothly moved due to such vibration.
- the configuration of the moving portion 16 is not particularly limited provided that the moving portion 16 can hold the discharge chute 10 such that the discharge chute 10 is movable along the axial direction of the leg portions 15, and the moving portion 16 has an elastic member which is compressible and restorable.
- the elastic member is not also particularly limited provided that the elastic member is compressible and restorable.
- a coil spring, rubber, a pneumatic spring or the like can be used as the elastic member.
- the moving portion 16 may have the structure where the moving portion 16 includes: a shaft portion 16a that has one end connected to the discharge chute 10; a bearing portion 16b that holds the shaft portion 16a movably along the axial direction of the leg portion 15; and a coil spring 16c that is disposed between a flange f formed on one end of the shaft portion 16a and the bearing portion 16b.
- the case 2 vibrates, the case 2 moves up and down.
- the case 2 moves downward so that a force is applied to the discharge chute 10 so as to press the discharge chute 10 downward, the coil spring 16c is compressed by the force, and the discharge chute 10 moves downward.
- the discharge chute 10 can be moved vertically with a certain stroke in an interlocking manner with the movement of the case 2 in the vertical direction due to vibration.
- a moving amount of the discharge chute 10 can be increased compared with the case where the moving portion 16 is not provided. Accordingly, an amount of vibration that enables smooth movement of a residual material MR can be generated in the discharge chute 10 due to vibration of the case 2.
- the coil spring 16c In the case where the coil spring 16c is used as described above, to prevent falling of the coil spring 16c when the discharge chute 10 vibrates, it is desirable to form a projecting guide on the flange f and the bearing portion 16b.
- the coil spring 16c can be mounted in a stable state by inserting the projecting guides into both ends of the coil spring 16c.
- each leg portion 15 include the axial length adjusting portion 17 that adjusts a length of the leg portion 15.
- the axial length adjusting portion 17 By adjusting the length of each leg portion 15 by the axial length adjusting portion 17, it is possible to adjust a distance between the damping member 20 and the lower end portion of the case 2 in a state where the case 2 is not vibrated.
- a state of vibration applied to the discharge chute 10 from the case 2 can be properly adjusted according to a residual material MR.
- a height of the discharge chute 10 and inclination of the inner bottom surface 11a of the bottom plate 11 can be adjusted and hence, the inclination and the height of the discharge chute 10 can be also brought into a proper state according to a state of a residual material MR.
- the configuration of the axial length adjusting portion 17 is not particularly limited provided that the length of each leg portion 15 can be adjusted.
- the axial length adjusting portion 17 may be configured such that a plate 16b and a base 17a are connected to each other by adjusting bolts 17b, and a spacer 17s (for example, a hollow cylindrical spacer) is disposed between the plate 16b and the base 17a.
- the length of the leg portion 15 can be changed by adjusting a length of the spacer 17s and by fixing the plate 16b and the base 17a to each other by the adjusting bolts 17b.
- the damping member 20 may be mounted on a lower end portion of the case 2, or may be mounted on both of one end portion of the bottom plate 11 and the lower end portion of the case 2. In either case, a state is brought about where one end portion of the bottom plate 11 and the lower end portion of the case 2 are not brought into contact with each other by way of the damping member 20 in a state where the case 2 is not vibrated.
- the damping member 20 It is not always necessary to provide the damping member 20. That is, the structure may be adopted where one end portion of the bottom plate 11 and the lower end portion of the case 2 are brought into direct contact with each other when the case 2 is vibrated. However, with the provision of the damping member 20, it is possible to acquire an advantageous effect that damaging of both portions can be prevented compared to the case where both portions are brought into direct contact with each other.
- the height of the inner bottom surface 11a of the bottom plate 11 to the screen 3 is not particularly limited. However, it is preferable to set the height to approximately 150 to 300 mm from a viewpoint of preventing the generation of noise when a residual material MR falls and the occurrence of damage to the bottom plate 11 due to an impact generated when the residual material MR falls, and also from a viewpoint of smoothly moving a residual material MR supplied to the inner bottom surface 11a of the bottom plate 11.
- a raw material used for forming the layer 11p or the like is not particularly limited, ultrahigh molecular weight polyethylene or the like can be used.
- ultrahigh molecular weight polyethylene or the like can be used.
- the layer 11p exhibits small friction and becomes slippery and hence, stagnation of a residual material MR can be easily prevented. Further, when the sheet is damaged, the sheet can be exchanged individually and hence, it is possible to acquire an advantageous effect that an operation time for maintenance or the like can be shortened.
- the bottom plate 11 may be formed of a planar member, or may be formed of a groove-shaped member having an approximately U-shaped cross section or the like.
- the bottom plate 11 of the discharge chute 10 may be formed of one sheet. However, from a viewpoint of enhancing rigidity of the discharge chute 10, it is desirable that the bottom plate 11 have the duplicate structure as shown in Fig. 2 and, further, a reinforcing frames 10f be formed on side walls of the discharge chute 10. With such a configuration, it is possible to increase rigidity of the discharge chute 10 per se against vibration.
- the vibration sieve device according to the present invention is suitable as a device for screening a mixture that contains lumps having a certain degree of size.
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
Description
- The present invention relates to a vibration sieve device, and more particularly to a vibration sieve device that includes a chute for discharging a material screened by the vibration sieve device.
- In a case where materials are screened according to their sizes from a mixture that contains a plurality of materials having different sizes, a sieve that includes a net having a predetermined mesh is used. That is, the mixture can be screened by putting the mixture in the sieve and by swinging or vibrating the sieve.
- As such a device that mechanically performs such screening, there has been known a vibration sieve device that includes a vibration screen (see Patent Document 1). The vibration sieve device includes: a supply part configured to supply a mixture; a screen (net) disposed horizontally or slightly obliquely; a vibration part configured to vibrate the net; a discharge part configured to discharge a screened material; and an oversize material discharge part configured to discharge a material remaining on the screen. With such a configuration, by operating the vibration part in a state where a mixture to be screened is placed on the screen, it is possible to screen the mixture on the screen. As a result, the material that passes through the screen can be discharged from the discharge part to the outside. Further, the material remaining on the screen can be also discharged to the outside from an oversize material discharge part.
- A discharge chute is used in general as the oversize material discharge part configured to discharge a material remaining on the screen from the vibration sieve device. The discharge chute has an inclined inner bottom surface. With the supply of a material from one end of the discharge chute onto the inner bottom surface, the material slides or rolls on the inner bottom surface so that the material can be discharged from the other end of the discharge chute.
- Patent Document 1: JP-UM-
A-7-25975 - In the vibration sieve device having the above-mentioned structure, a material is supplied to the discharge chute by letting the material fall onto the inner bottom surface of the discharge chute from the oversize material discharge part of the vibration sieve device. The material discharged from the oversize material discharge part has a certain degree of size. Accordingly, an impact generated when the material falls onto the inner bottom surface of the discharge chute is large and hence, there may be case where the inner bottom surface of the discharge chute is deformed or damaged due to the impact. When such damage occurs, the movement of the material on the inner bottom surface of the discharge chute becomes difficult. In a worst case, there is a possibility that the discharge chute is clogged with a material. Accordingly, when the inner bottom surface of the discharge chute is damaged, maintenance such as repair becomes necessary so as to maintain the movement of the material.
- On the other hand, when the vibration sieve device is provided in a facility such as a steel refining process, screening is continuously performed and hence, a material is continuously supplied also to the discharge chute. That is, a situation arises where an impact is repeatedly applied to the inner bottom surface of the discharge chute. Since there is a possibility that the inner bottom surface of the discharge chute is damaged in a relatively short time and hence, the maintenance of the discharge chute must be performed frequently.
- To repair the discharge chute, it is necessary to stop an operation of the vibration sieve device, and there may be a case where an operation of a facility must be stopped due to stopping of the operation of the vibration sieve device. As a result, there may be a case where operation efficiency of the facility per se is lowered due to frequent maintenance of the discharge chute.
- In view of the above, as a method of preventing the occurrence of damage to the discharge chute, there has been adopted a method where an impact resistance is increased by adhering an damping member to an inner bottom surface of a discharge chute or a method where a vibration resistance is enhanced by increasing rigidity of a discharge chute per se or by separating a discharge chute from a vibration sieve device.
- However, in the case where an impact resistance is increased by adhering the damping member to the inner bottom surface of the discharge chute, although an impact generated by a falling material can be alleviated, energy for moving the material is also absorbed. As a result, there may be a case where a force that the material possesses for moving in the discharge chute after falling is also decreased. In this case, there is a possibility that the discharge chute is clogged due to a defective movement of the material.
- As the method of increasing rigidity for increasing vibration resistance, a method is considered where a wall thickness of a material used for forming the discharge chute is increased or a material property of such a material is changed. In general, a discharge chute is formed using an iron plate made of carbon steel or the like, the increase in a wall thickness of the material gives rise to drawbacks such as lowering of treatment ability or acceleration of the occurrence of cracks due to the increase in a weight of the vibration sieve device. On the other hand, when a discharge chute is manufactured using a raw material that is light-weight and has high durability compared to an iron plate, there is a possibility that a burden on cost for the manufacture and the maintenance of the vibration sieve device becomes high. Further, it is not always the case that such a material is superior to an iron plate with respect to a repeatedly applied stress.
- On the other hand, there has been also known a method where a discharge chute is provided as a fixed chute that is separated from a body of a vibration sieve device. In this case, vibration of the vibration sieve device is not applied to the fixed chute and hence, it is unnecessary to take into account vibration resistance.
- In the case of using the fixed chute as the discharge chute, vibration generated by the vibration sieve device cannot be used for moving a material and hence, it is necessary to smoothly supply the material from the vibration sieve device to the fixed chute. To be more specific, the material supplied to the fixed chute from the vibration sieve device must be smoothly moved on the fixed chute. As a method for smoothly moving the material on the fixed chute, considered is a method where a difference in elevation that the material falls from the vibration sieve device to the fixed chute is increased or a method where inclination of an inner bottom surface of the fixed chute is increased or the like, for example.
- However, a difference in elevation or an inclination angle is limited because of restriction imposed on the connection with a succeeding step, an installation space or the like and hence, it is not always possible to ensure a proper difference in elevation or a proper inclination angle. Further, when a difference in elevation is increased, an impact generated when the material falls on an inner bottom surface of the fixed chute is increased and hence, impact resistance is lowered even when vibration resistance is increased.
- As described above under the current circumstances, there has been proposed no chute that can prevent damage to a chute while maintaining smooth discharge of a material, and there has been a demand for a vibration sieve device having such a chute.
- The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a vibration sieve device capable of preventing the occurrence of damage to a chute while maintaining discharge of a material using the chute.
- A vibration sieve device according to a first invention is a vibration sieve device including a case; a screen disposed inside the case; and a vibration unit configured to vibrate the case, characterized in that the case has a residual material discharge port configured to discharge a residual material remaining on the screen after screening to an outside of the case, the case includes a discharge chute configured to discharge the residual material discharged from the residual material discharge port, the discharge chute having an inner bottom surface where one end is disposed near the residual material discharge port of the case and the inner bottom surface is downwardly inclined from the one end to another end of the inner bottom surface, and the discharge chute is disposed so as not to be brought into contact with the case in a state where the case is not vibrated.
- A vibration sieve device according to a second invention is the vibration sieve device according to the first invention, characterized in that a damping member is disposed between the discharge chute and the case, and the damping member is disposed such that the discharge chute is brought into contact with the case by way of the damping member when the vibration unit vibrates the case.
- A vibration sieve device according to a third invention is the vibration sieve device according to the first or the second invention, further including a leg portion configured to fix the discharge chute to a foundation or the like, characterized in that the leg portion includes a moving portion configured to hold the discharge chute in a movable manner along an axial direction of the leg portion, and the moving portion includes an elastic member extendable and compressible along the axial direction of the leg portion.
- A vibration sieve device according to a fourth invention is the vibration sieve device according to the third invention, further including a plurality of the leg portions, characterized in that each of the leg portions includes an axial length adjusting portion for adjusting a length of the leg portion.
- A vibration sieve device according to a fifth invention is the vibration sieve device according to the first, the second, the third or the fourth invention, characterized in that a layer made of ultrahigh molecular weight polyethylene is formed on the inner bottom surface of the discharge chute.
- According to the first invention, although the case and the discharge chute are not fixed to each other, when the case, which is vibrating, is brought into contact with the discharge chute, vibration of the case can be transmitted to the discharge chute. As a result, vibration of the case can be converted into a force that moves a residual material in the discharge chute and hence, the residual material can be smoothly moved in the discharge chute. Further, compared to a case where the case and the discharge chute are brought into direct contact with each other, vibration applied to the discharge chute can be decreased and hence, the occurrence of damage to the discharge chute due to vibration can be prevented.
- According to the second invention, when the case is vibrated, the case and the discharge chute are brought into contact with each other by way of the damping member and hence, damage to the chute, which occurs when the case and the discharge chute are brought into contact with each other, can be prevented.
- According to the third invention, the discharge chute is held by the elastic member in a movable manner and hence, the discharge chute can be easily vibrated due to the vibration of the case.
- According to the fourth invention, a height of the discharge chute or inclination of the inner bottom surface can be adjusted by adjusting the length of the leg portion and hence, the discharge chute can be brought into a proper state according to a state of the residual material.
- According to the fifth invention, an impact generated when a residual material falls can be alleviated and hence, the occurrence of damage to the discharge chute can be suppressed.
-
-
Fig. 1 is a schematic explanatory view of avibration sieve device 1 according to the present embodiment. -
Fig. 2 is a schematic explanatory view of avibration sieve device 1 according to another embodiment. - The vibration sieve device according to the present invention is provided for screening a mixture containing a plurality of materials having different sizes, and is characterized in that the vibration sieve device can stably discharge a screened residual material while preventing the occurrence of damage to a chute.
- The vibration sieve device according to the present invention can be used in various applications where a mixture is screened. For example, the vibration sieve device according to the present invention can be used as a device that screens a mixture manufactured in a preceding step, and supplies a material having a predetermined size to a succeeding step or the like in a manufacturing facility. As such a manufacturing facility, a high pressure acid leach (HPAL) process, ore separation or the like can be named. In a facility that recovers valuable metal such as nickel from a low-grade nickel oxide ore using a high pressure acid leach (HPAL) process, the vibration sieve device according to the present invention can be used as a device that separates oversized ores containing undesired rocks or the like from valuable ores and discharges these materials.
- The
vibration sieve device 1 according to the present embodiment is a device that screens a mixture supplied from another device or the like into a material having a predetermined size or less and a residual material MR by ascreen 3, and supplies the screened material to another device or the like. - Although the
vibration sieve device 1 according to the present embodiment is characterized by adischarge chute 10 that discharges the residual material MR, first, the overall configuration of thevibration sieve device 1 according to the present embodiment is described. - In
Fig. 1 ,symbol 2 indicates a case of thevibration sieve device 1 according to the present embodiment. Thecase 2 is a hollow member, and a mixture is supplied to the inside of thecase 2 from above. Thecase 2 is disposed in a movable manner with respect to a base B such as a floor by way of a damping member such as a spring, and is connected to a vibration unit that vibrates thecase 2 vertically. - As shown in
Fig. 1 , thescreen 3 is disposed in the inside of thecase 2 so as to vertically divide a space formed in thecase 2. Thescreen 3 is a sheet-like or a plate-like member such as a net in which apertures that penetrate from a front side to a rear side of the member are formed. That is, thescreen 3 is provided such that when a mixture is supplied to an upper surface of thescreen 3, a material having a size smaller than a predetermined size is allowed to pass through apertures formed in thescreen 3 and to fall downward, while a residual material MR larger than the material in size remains on thescreen 3. - A residual material discharge port 2c is formed on a discharge end portion (a right end in
Fig. 1 ) of thecase 2. The residual material discharge port 2c is disposed such that an upper end of the residual material discharge port 2c is positioned above thescreen 3. That is, the residual material discharge port 2c is disposed such that the residual material MR on thescreen 3 can be made to fall to the outside. - As shown in
Fig. 1 , adischarge chute 10 is disposed near the discharge end portion of thecase 2. To be more specific, thedischarge chute 10 has aspace 10h surrounded by abottom plate 11 and acover 12, and is disposed such that one end portion of thedischarge chute 10 covers the residual material discharge port 2c of thecase 2. - The
bottom plate 11 of thedischarge chute 10 is disposed such that one end portion of thebottom plate 11 extends to an area below the discharge end portion of thecase 2, and aninner bottom surface 11a of thebottom plate 11 is inclined downwardly from one end portion to the other end portion of theinner bottom surface 11a (from a left end toward a right end inFig. 1 ). - The
discharge chute 10 is mounted on the base B or the like using a plurality ofleg portions 15 independently of thecase 2. Thedischarge chute 10 is held by a plurality ofleg portions 15 such that thedischarge chute 10 is not brought into direct contact with thecase 2 in a state where thecase 2 is not vibrated. - With such a configuration, by supplying a mixture onto the
screen 3 while vibrating thecase 2 by the vibration unit, thescreen 3 can screen the mixture into a screened material and a residual material MR. Then, the residual material MR on thescreen 3 can be supplied to thedischarge chute 10 through the residual material discharge port 2c. - The
discharge chute 10 is disposed such that theinner bottom surface 11a of thebottom plate 11 is inclined downwardly from one end portion to the other end portion. Accordingly, a residual material MR in thespace 10h of thebottom plate 11 slides or rolls on theinner bottom surface 11a of thebottom plate 11 and moves toward the other end of thedischarge chute 10. - Accordingly, a residual material MR supplied from the residual material discharge port 2c of the
case 2 to thedischarge chute 10 can be discharged from the other end of thedischarge chute 10 to the outside of thedischarge chute 10 through thespace 10h of thedischarge chute 10. - In the inside of the
case 2, thescreen 3 may be arranged horizontally, or may be disposed in a downwardly inclined manner toward the residual material discharge port 2c by slightly inclining thescreen 3. The position of a residual material MR on thescreen 3 changes due to vibration of thecase 2 and hence, even when thescreen 3 is arranged horizontally, the residual material MR can be moved to the residual material discharge port 2c. However, by disposing thescreen 3 in a downwardly inclined manner toward the residual material discharge port 2c, the residual material MR can be moved to the residual material discharge port 2c within a shorter time and with certainty. - Although a material that passes through the
screen 3 is discharged from a lower portion of thecase 2 to the outside, a method of discharging the material is not particularly limited. The material may be discharged to the outside by forming a discharge port in a bottom plate of thecase 2, or the material may be directly made to fall into a tank or the like without providing a bottom plate. - In the
vibration sieve device 1 according to the present embodiment, thedischarge chute 10 is held by a plurality ofleg portions 15 such that thedischarge chute 10 is not brought into direct contact with thecase 2 in a state where thecase 2 is not vibrated. However, thedischarge chute 10 is configured such that vibration of thecase 2 is transmitted to thedischarge chute 10 when thecase 2 is vibrated. - Hereinafter, the structure of the
discharge chute 10 is described. - As described previously, one end portion of the
bottom plate 11 is arranged below the lower end portion of thecase 2. To be more specific, one end portion of thebottom plate 11 is arranged below the discharge end portion of thecase 2 at the position where the residual material discharge port 2c is disposed. One end portion of thebottom plate 11 is arranged in a state where one end portion is spaced apart from a lower end of the discharge end portion of thecase 2. - A
vibration transmission portion 11b is formed on one end portion of thebottom plate 11. A dampingmember 20 is mounted on an upper surface of thevibration transmission portion 11b. The dampingmember 20 is made of a raw material having elasticity such as hard rubber or a silicon resin. - An upper surface of the damping
member 20 is not brought into contact with a lower end portion of thecase 2 in a state where thecase 2 is not vibrated. However, the dampingmember 20 is disposed such that the upper surface of the dampingmember 20 can be brought into contact with the lower end portion of thecase 2 when thecase 2 is vibrated. - To be more specific, the damping
member 20 is disposed such that a gap that is shorter than a stroke of vertical movement of thecase 2 when thecase 2 is vibrated is formed between the upper surface of the dampingmember 20 and the lower end portion of thecase 2 in a state where thecase 2 is not vibrated. For example, the dampingmember 20 is disposed such that a gap L between the upper surface and the lower end portion falls within a range of approximately 50 to 100 mm in a state where thecase 2 is not vibrated. - By adopting the above-mentioned structure, when the
case 2 is vibrated by the vibration unit, a state is brought about where the dampingmember 20 and the lower end portion of thecase 2 repeat contacting and separating therebetween. Accordingly, along with vibration of thecase 2, it is also possible to vibrate the bottom plate 11 (that is, the discharge chute 10). In other words, although thecase 2 and thedischarge chute 10 are not fixed to each other, vibration of thecase 2 can be transmitted to thedischarge chute 10. As a result, vibration of thecase 2 can be converted into a force that moves a residual material MR in thedischarge chute 10 and hence, it is possible to smoothly move the residual material MR in thedischarge chute 10. - Further, vibration of the
case 2 is transmitted to thedischarge chute 10 only in a state where thecase 2 is brought into contact with the dampingmember 20. As a result, compared to a case where thedischarge chute 10 is fixed to thecase 2 or is brought into direct contact with thecase 2, vibration applied to thedischarge chute 10 can be reduced. That is, a force that thedischarge chute 10 receives due to vibration of thecase 2 can be reduced and hence, the occurrence of damage to thedischarge chute 10 due to such vibration can be prevented. - The lower end portion of the
case 2 and thevibration transmission portion 11b of thebottom plate 11 may be brought into contact with each other directly or by way of the dampingmember 20 in a state where thecase 2 is not vibrated. Also in this case, it is sufficient that a state is brought about where the lower end portion of thecase 2 and thevibration transmission portion 11b of thebottom plate 11 are separated from each other when thecase 2 is vibrated (such a state also including a state where the lower end portion of thecase 2 or thevibration transmission portion 11b of thebottom plate 11 is separated from the damping member 20). - Particularly, by adopting a structure where the plurality of
leg portions 15 respectively have the movingportion 16 that holds thedischarge chute 10 in a state where thedischarge chute 10 is movable along an axial direction (a vertical direction inFig. 1 ) of theleg portions 15, thedischarge chute 10 can be effectively vibrated due to vibration transmitted from thecase 2. That is, even when vibration transmitted from thecase 2 is not so large, it is possible to generate vibration in thedischarge chute 10 to an extent that a residual material MR can be smoothly moved due to such vibration. - The configuration of the moving
portion 16 is not particularly limited provided that the movingportion 16 can hold thedischarge chute 10 such that thedischarge chute 10 is movable along the axial direction of theleg portions 15, and the movingportion 16 has an elastic member which is compressible and restorable. The elastic member is not also particularly limited provided that the elastic member is compressible and restorable. For example, a coil spring, rubber, a pneumatic spring or the like can be used as the elastic member. - For example, as shown in
Fig. 1 , the movingportion 16 may have the structure where the movingportion 16 includes: ashaft portion 16a that has one end connected to thedischarge chute 10; a bearingportion 16b that holds theshaft portion 16a movably along the axial direction of theleg portion 15; and acoil spring 16c that is disposed between a flange f formed on one end of theshaft portion 16a and the bearingportion 16b. When thecase 2 vibrates, thecase 2 moves up and down. When thecase 2 moves downward so that a force is applied to thedischarge chute 10 so as to press thedischarge chute 10 downward, thecoil spring 16c is compressed by the force, and thedischarge chute 10 moves downward. On the other hand, when thecase 2 moves upward so that the force that presses thedischarge chute 10 downward is removed, thecoil spring 16c extends and thedischarge chute 10 moves upward. That is, thedischarge chute 10 can be moved vertically with a certain stroke in an interlocking manner with the movement of thecase 2 in the vertical direction due to vibration. In other words, with the provision of the movingportion 16 described above, a moving amount of thedischarge chute 10 can be increased compared with the case where the movingportion 16 is not provided. Accordingly, an amount of vibration that enables smooth movement of a residual material MR can be generated in thedischarge chute 10 due to vibration of thecase 2. - From a viewpoint of an advantageous effect that a restoring force can be easily generated, it is preferable to mount the
coil spring 16c in a compressed state. - In the case where the
coil spring 16c is used as described above, to prevent falling of thecoil spring 16c when thedischarge chute 10 vibrates, it is desirable to form a projecting guide on the flange f and the bearingportion 16b. Thecoil spring 16c can be mounted in a stable state by inserting the projecting guides into both ends of thecoil spring 16c. - It is desirable that each
leg portion 15 include the axiallength adjusting portion 17 that adjusts a length of theleg portion 15. By adjusting the length of eachleg portion 15 by the axiallength adjusting portion 17, it is possible to adjust a distance between the dampingmember 20 and the lower end portion of thecase 2 in a state where thecase 2 is not vibrated. With such a structure, when thecase 2 is vibrated, a state of vibration applied to thedischarge chute 10 from thecase 2 can be properly adjusted according to a residual material MR. - A height of the
discharge chute 10 and inclination of theinner bottom surface 11a of thebottom plate 11 can be adjusted and hence, the inclination and the height of thedischarge chute 10 can be also brought into a proper state according to a state of a residual material MR. - The configuration of the axial
length adjusting portion 17 is not particularly limited provided that the length of eachleg portion 15 can be adjusted. For example, as shown inFig. 1 , the axiallength adjusting portion 17 may be configured such that aplate 16b and abase 17a are connected to each other by adjustingbolts 17b, and aspacer 17s (for example, a hollow cylindrical spacer) is disposed between theplate 16b and thebase 17a. The length of theleg portion 15 can be changed by adjusting a length of thespacer 17s and by fixing theplate 16b and thebase 17a to each other by the adjustingbolts 17b. - In the above-mentioned embodiment, the case has been described where the damping
member 20 is mounted on one end portion of thebottom plate 11. However, the dampingmember 20 may be mounted on a lower end portion of thecase 2, or may be mounted on both of one end portion of thebottom plate 11 and the lower end portion of thecase 2. In either case, a state is brought about where one end portion of thebottom plate 11 and the lower end portion of thecase 2 are not brought into contact with each other by way of the dampingmember 20 in a state where thecase 2 is not vibrated. - It is not always necessary to provide the damping
member 20. That is, the structure may be adopted where one end portion of thebottom plate 11 and the lower end portion of thecase 2 are brought into direct contact with each other when thecase 2 is vibrated. However, with the provision of the dampingmember 20, it is possible to acquire an advantageous effect that damaging of both portions can be prevented compared to the case where both portions are brought into direct contact with each other. - The height of the
inner bottom surface 11a of thebottom plate 11 to thescreen 3 is not particularly limited. However, it is preferable to set the height to approximately 150 to 300 mm from a viewpoint of preventing the generation of noise when a residual material MR falls and the occurrence of damage to thebottom plate 11 due to an impact generated when the residual material MR falls, and also from a viewpoint of smoothly moving a residual material MR supplied to theinner bottom surface 11a of thebottom plate 11. - It is desirable to form a
layer 11p having impact absorbing property on the upper surface of thebottom plate 11 from a viewpoint of preventing the generation of noise when a residual material MR falls and the occurrence of damage to thebottom plate 11 due to an impact when the residual material MR falls. A raw material used for forming thelayer 11p or the like is not particularly limited, ultrahigh molecular weight polyethylene or the like can be used. Particularly, by arranging a plurality of sheet-like members made of ultrahigh molecular weight polyethylene parallel to each other on thebottom plate 11, thelayer 11p exhibits small friction and becomes slippery and hence, stagnation of a residual material MR can be easily prevented. Further, when the sheet is damaged, the sheet can be exchanged individually and hence, it is possible to acquire an advantageous effect that an operation time for maintenance or the like can be shortened. - The
bottom plate 11 may be formed of a planar member, or may be formed of a groove-shaped member having an approximately U-shaped cross section or the like. - The
bottom plate 11 of thedischarge chute 10 may be formed of one sheet. However, from a viewpoint of enhancing rigidity of thedischarge chute 10, it is desirable that thebottom plate 11 have the duplicate structure as shown inFig. 2 and, further, a reinforcing frames 10f be formed on side walls of thedischarge chute 10. With such a configuration, it is possible to increase rigidity of thedischarge chute 10 per se against vibration. - The vibration sieve device according to the present invention is suitable as a device for screening a mixture that contains lumps having a certain degree of size.
-
- 1:
- vibration sieve device
- 2:
- case
- 2c:
- residual material discharge port
- 3:
- screen
- 10:
- discharge chute
- 11:
- bottom plate
- 12:
- cover portion
- 15:
- leg portion
- 16:
- moving portion
- 17:
- axial length adjusting portion
- 20:
- damping member
- M:
- mixture
- MR:
- residual material
Claims (5)
- A vibration sieve device comprising:a case;a screen disposed inside the case; anda vibration unit configured to vibrate the case,wherein
the case has a residual material discharge port configured to discharge a residual material remaining on the screen after screening to an outside of the case,
the case includes a discharge chute configured to discharge the residual material discharged from the residual material discharge port, the discharge chute having an inner bottom surface where one end is disposed near the residual material discharge port of the case and the inner bottom surface is downwardly inclined from the one end to another end of the inner bottom surface, and
the discharge chute is disposed so as not to be brought into contact with the case in a state where the case is not vibrated. - The vibration sieve device according to claim 1, wherein
a damping member is disposed between the discharge chute and the case, and
the damping member is disposed such that the discharge chute is brought into contact with the case by way of the damping member when the vibration unit vibrates the case. - The vibration sieve device according to claim 1 or 2 further comprising a leg portion configured to fix the discharge chute to a foundation or the like,
wherein
the leg portion includes a moving portion configured to hold the discharge chute in a movable manner along an axial direction of the leg portion, and
the moving portion includes an elastic member extendable and compressible along the axial direction of the leg portion. - The vibration sieve device according to claim 3, further comprising a plurality of the leg portions,
wherein each of the leg portions includes an axial length adjusting portion configured to adjust a length of the leg portion. - The vibration sieve device according to claim 1, 2, 3, or 4 wherein a layer made of ultrahigh molecular weight polyethylene is formed on the inner bottom surface of the discharge chute.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016047897A JP6551682B2 (en) | 2016-03-11 | 2016-03-11 | Vibrating sieve device |
PCT/JP2017/008415 WO2017154755A1 (en) | 2016-03-11 | 2017-03-03 | Vibrating screen device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3427846A1 true EP3427846A1 (en) | 2019-01-16 |
EP3427846A4 EP3427846A4 (en) | 2019-12-04 |
Family
ID=59790328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17763095.1A Withdrawn EP3427846A4 (en) | 2016-03-11 | 2017-03-03 | Vibrating screen device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3427846A4 (en) |
JP (1) | JP6551682B2 (en) |
AU (1) | AU2017231295A1 (en) |
PH (1) | PH12018501833A1 (en) |
WO (1) | WO2017154755A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107952656A (en) * | 2017-10-13 | 2018-04-24 | 江苏捷帝机器人股份有限公司 | A kind of recovering mechanism for the blasting craft for being used for mechanical person joint |
CN107716287A (en) * | 2017-11-10 | 2018-02-23 | 无锡宇能选煤机械厂 | The coal picker of the built-in even separating device of compass screen surface material |
CN111940286B (en) * | 2020-08-10 | 2023-04-18 | 新疆星宇建设工程有限公司 | Building construction is with swaing formula grit sieving mechanism |
CN114472160B (en) * | 2022-01-14 | 2023-07-25 | 泰州市伟博助剂厂 | Molecular sieve production facility |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1173423A (en) * | 1966-03-01 | 1969-12-10 | Roto Finish Ltd | Improvements relating to Separating Devices for use with Finishing Apparatus |
JPS50155661U (en) * | 1974-06-11 | 1975-12-23 | ||
JPS5450389U (en) * | 1977-09-14 | 1979-04-07 | ||
JPS5811420Y2 (en) * | 1978-06-13 | 1983-03-03 | 仁一 西脇 | vibrating sieve |
JPS5921899Y2 (en) * | 1980-08-22 | 1984-06-29 | 日新製鋼株式会社 | Horizontal movement sieving device |
JPS5819789U (en) * | 1981-07-25 | 1983-02-07 | セイレイ工業株式会社 | Sorting adjustment device in an oscillating paddy rough sorter |
JPH0311468U (en) * | 1989-06-16 | 1991-02-05 | ||
JP2005087075A (en) * | 2003-09-16 | 2005-04-07 | Shinko Sangyo Kk | Apparatus for shellfish selection |
US20080202989A1 (en) * | 2007-02-27 | 2008-08-28 | Graney Francis X | Multi-Screener Sifting Apparatus |
-
2016
- 2016-03-11 JP JP2016047897A patent/JP6551682B2/en active Active
-
2017
- 2017-03-03 WO PCT/JP2017/008415 patent/WO2017154755A1/en active Application Filing
- 2017-03-03 EP EP17763095.1A patent/EP3427846A4/en not_active Withdrawn
- 2017-03-03 AU AU2017231295A patent/AU2017231295A1/en not_active Abandoned
-
2018
- 2018-08-28 PH PH12018501833A patent/PH12018501833A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP3427846A4 (en) | 2019-12-04 |
JP2017159269A (en) | 2017-09-14 |
AU2017231295A1 (en) | 2018-09-20 |
PH12018501833A1 (en) | 2019-05-15 |
JP6551682B2 (en) | 2019-07-31 |
WO2017154755A1 (en) | 2017-09-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3427846A1 (en) | Vibrating screen device | |
US7578394B2 (en) | Method and apparatuses for screening | |
US9884345B2 (en) | Method and apparatuses for screening | |
CN111565852A (en) | Mobile crushing system with eccentric roller crusher and finger screen | |
JP5125828B2 (en) | Lattice material / active material separation and recovery method and apparatus for electrode plate for lead acid battery | |
EP2908959B1 (en) | Method and apparatuses for screening | |
DE202010014959U1 (en) | Building materials Recyclingsieb | |
CN106622943A (en) | High-efficiency GLS probability screen | |
KR20200028752A (en) | Sorter for abalones | |
KR20130048969A (en) | Grizzly screen apparatus | |
KR101462164B1 (en) | Supplying apparatus of raw material | |
CN106607334A (en) | Griddle anti-collision protective device | |
CN210635242U (en) | Vibration feeding device | |
KR101529185B1 (en) | Belt coneveyer apparatus | |
AU2017248508B2 (en) | Method and apparatuses for screening | |
CN219703395U (en) | Precoated sand crushing and screening equipment | |
AU2019283997B2 (en) | Method and apparatuses for screening | |
CA2887666C (en) | Method and apparatuses for screening | |
JP2017006825A (en) | Incombustible fine separation device | |
KR20120075649A (en) | Apparatus for preventing congestion of coke | |
CN118106217A (en) | Alloy particle screening and grading device | |
WO2017145942A1 (en) | Vibrating screen device | |
RU32006U1 (en) | Vibrating screen | |
KR20140035111A (en) | Apparatus for raw material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20181009 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20191105 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: B07B 1/46 20060101ALI20191029BHEP Ipc: B07B 1/28 20060101AFI20191029BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20200311 |