WO2007097743A1 - Distributeur d'alimentation rotatif - Google Patents

Distributeur d'alimentation rotatif Download PDF

Info

Publication number
WO2007097743A1
WO2007097743A1 PCT/US2006/005935 US2006005935W WO2007097743A1 WO 2007097743 A1 WO2007097743 A1 WO 2007097743A1 US 2006005935 W US2006005935 W US 2006005935W WO 2007097743 A1 WO2007097743 A1 WO 2007097743A1
Authority
WO
WIPO (PCT)
Prior art keywords
chute
feed distributor
feed
distributor according
housing
Prior art date
Application number
PCT/US2006/005935
Other languages
English (en)
Inventor
Ulhas Sawant
James Sheridan
Original Assignee
Innotech Solutions, Llc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Innotech Solutions, Llc filed Critical Innotech Solutions, Llc
Priority to PCT/US2006/005935 priority Critical patent/WO2007097743A1/fr
Publication of WO2007097743A1 publication Critical patent/WO2007097743A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/007—Feeding devices

Definitions

  • This invention relates to cone crushers used for crushing rocks and, more specifically, feed distributors used in combination with rock crushers and other devices .
  • a belt conveyor or feeder delivers rocks and stones into a crusher.
  • the rocks will ride up the conveyor, located above the input of the crusher.
  • the rocks will be dumped under the force of gravity into the crusher, which will then crush the rocks into a predetermined size.
  • the rocks will pass through a feed distributor, which will assist in dispersing the rocks into the crusher. Since rocks fed into the crusher are not always of the same size and shape, they will not necessarily be crushed to a final uniform size. However, it is preferable to have the crushed rocks be within a relative range and size, which may mean that the rocks and stones need to be recrushed.
  • the final crushed rock product should have a uniform gradation of rock sizes and shapes, rather than having a batch of stones that may contain very fine dust as a product and another batch that only contains larger rocks .
  • Such segregation of the rocks is not advantageous as it can lead to a less saleable end product. In the event the rocks are too large for specifications, the rocks will be recycled back into the crusher to be crushed again.
  • Previous inventions such as Ryan et al . , U.S. Patent No. 6,227,472, discuss devices that will spin rocks into the sides of the crusher.
  • the device in Ryan causes buildup within the device, and, since the device is located within the crusher, is not easily cleaned or serviced.
  • Other devices such as Kemnitz, U.S. Patent No. 4,106,707, contemplate feed distributors, but do not allow for control and efficiency as is found in the present invention.
  • prior art designs have been observed to comprise drive means that are susceptible to dust and dirt and may unduly slip when driving the feed distributor, such as Gasparac et al . , U.S. Patent No. 3,212,720.
  • the present invention addresses this issue by introducing a system for evenly distributing feed rocks into a crusher. Summary of the Invention
  • the present invention provides a feed distributor for use in connection with rock crushers.
  • the distributor sits beneath the top end or output end of a conveyor or feeder used in conjunction with a rock crusher.
  • the conveyor or feeder delivers rocks from a supply source to the distributor that is positioned over the crusher input.
  • the distributor receives the rocks onto its feed platform, where the rocks travel from the feed platform into a feed chute comprising an inlet and an outlet.
  • the feed chute has an outer and inner tube, with the outer tube rotating and the inner tube being relatively stationary.
  • the outer tube is driven by a motor coupled to a gear reducer.
  • the use of the two tubes lessens the wear on the feed distributor.
  • the rotating outer tube allows the rocks to be evenly distributed throughout the rock crusher and reduces segregation of the rocks, which improves the efficiency of the rock crusher.
  • the distributor provides for an even distribution of the rocks before entering the crusher, thereby minimizing uneven rock buildup within the crusher and further minimizing the need for recycling of rocks that are not crushed within predetermined limitations.
  • the feed distributor is further designed to protect the power means and other moving parts from dust and other particles, thereby reducing the overall wear on the distributor.
  • the arrangement of the belts and drive means of the distributor also provides for a secure and low maintenance drive system, without the necessity of using a sheave around the rotating outer tube.
  • Figure 1 is a side view of the present invention in combination with a rock crusher and a feed conveyor .
  • Figure 2 is a perspective view of the present invention.
  • Figure 3 is a bottom view of the present invention.
  • Figure 4 is a side view of the present invention taken along line 4 -- 4 of Figure 3.
  • Figures 4A-4B are sectional side views of the present invention and feedbox receiving rocks .
  • Figure 5 is overhead view of a crusher used in connection with the present invention. Description of the Preferred Embodiment
  • Figure 1 shows a side view of a rock crushing system 10 employing the present invention.
  • a plurality of rocks 12 is fed upwards on a conveyor 14.
  • the conveyor
  • the feed distributor 18 delivers the rocks 12 through a feedbox 16 and into a feed distributor 18, which is the focus of the present invention.
  • the feed distributor 18 is designed for 360° rotation and delivers the rocks 12 uniformly to the crusher 20.
  • the distributor 18 may be mounted to the crusher, the conveyor, or may be mounted independently.
  • a frame or mount 19 holds the feed distributor 18 in place over the crusher 20.
  • the frame 19 can encompass a wide range of shapes and sizes that will adequately mount the distributor 18 over the crusher 20.
  • the feedbox 16 should be considered a stand-alone feature that is not part of the present invention.
  • the feed distributor 18 passes the rocks 12 into a crusher 20, which rotates or gyrates and crushes the rocks 12.
  • the rocks 12 exit below the crusher 20, possibly onto a second conveyor 22, which will then take the crushed rocks 12 away to be further sorted, or to be recycled and reprocessed in the rock crushing system 10.
  • FIG 2 shows a perspective view of the feed distributor 18.
  • a power means 24 of any sufficient design or size that will adequately allow the distributor 18 to operate powers the feed distributor 18.
  • the output of the motor 24 is rotationally coupled to a gear reducer 24a, which in turns drives the necessary components of the feed distributor 18.
  • the distributor 18 has three main areas that the rocks will encounter when proceeding towards the crusher: a feed platform 25, an inlet 28, and an outlet 30.
  • the inlet 28 and the outlet 30 generally are opposing sections of a tubular chute 32 containing a coextensive bore within the chute 32, which will be described in more detail with respect to the subsequent figures.
  • the inlet 28 comprises a reinforced lip 34, which helps to extend the life of the inlet 28.
  • a second lip 36 is located around the outlet 30 to also extend the life of the outlet 30.
  • the lips 34 and 36 may be designed in any fashion, such as from a metal rod or similar material that may be welded to the inlet 28 and the outlet 30, that will reduce wear on the feed box 16.
  • the feed distributor 18 comprises a housing 38, which prevents dust and other debris from interfering with internal components of the feed distributor 18.
  • the housing 38 may be of any shape that will efficiently protect the internal components and not interfere with the functions of the distributor 18.
  • the housing 38 is designed so that it seals off the inner parts of the distributor 18 from the outside elements.
  • a plurality of brackets 40 is provided on the outside of the housing 38.
  • the brackets 40 provide an area for the distributor 18 to be mounted onto the frame 19 over the crusher 20 (see Figure 1) .
  • the brackets 40 should be understood to encompass any mounting means that will sufficiently secure the distributor 18 to the crusher 20.
  • the brackets 40 together with the .frame 19 may be of any design.
  • the distributor 18 does not necessarily need to be firmly bolted down, but may be held in place with stop blocks (not shown) .
  • Figure 3 shows a bottom view of the distributor 18.
  • the output shaft of gear reducer 24a (shown in phantom) is coupled to a drive wheel, sheave, or pulley 50, which is connected to a drive belt 52.
  • the drive belt 52 surrounds the tubular chute 32.
  • the drive belt 52 is preferably of a design, such as a micro V- belt, that allows the chute 32 to rotate without a sheave being located on the outside of the chute 32.
  • the drive belt 52 encounters tensioning wheels or pulleys 54.
  • the tensioning wheel 54 which may or may not be grooved to more closely resemble the shape of the drive belt 52, are connected by a crossbar 55 that may be adjusted to fine-tune the overall tension of the drive belt 52, but generally is not necessary under ordinary operating conditions.
  • the crossbar 55 holds the tensioning wheels 54 close to the chute 32, which minimizes deflection of the drive belt 52 away from the chute 32.
  • the biased arrangement of the tensioning wheels 54 allows the drive belt 52 more completely to surround the chute 32.
  • the more inclusive wrap design of the drive belt 52 is advantageous over previous feed distributors. Because the belt makes more contact with the chute 32, there is less chance that the belt 52 will slip, which improves the efficiency of the distributor 18. Furthermore, the arrangement provides for a sheaveless arrangement not found in the prior art. Consequently, less dirt and debris has a chance to interfere with the movement of the belt 52, thereby lessening the need for maintenance on the system and providing for a more consistent rotation of the chute 32.
  • the tensioning wheels 54 are kept lubricated by corresponding grease fittings 56 located on the outside of the housing 38 (also shown in Figure 1) , which are connected to the tensioning wheels 54 by corresponding hoses or conduits 58 (shown in phantom) .
  • the tensioning wheels 54 may be kept lubricated without having to expose the tensioning wheels 54 and other internal contents of the distributor 18 to dirt and other harmful elements.
  • the lubrication means together with the arrangement of the crossbar 55, provides for a system that greatly reduces any need to adjust the drive belt 52 or the tensioning wheels 54.
  • the drive wheel 50 and the gear reducer 24a are designed so that they are slidable forward or backwards towards the chute 32 prior to installation within adjusting slots 59, thereby providing the necessary tension for the drive belt 52. Once the proper tension is achieved and the gear reducer 24a and the drive wheel 50 are secured, minimal adjustments and maintenance are required for the distributor 18 during normal operation.
  • a plurality of vertical support means 60 are shown mounted to the housing 38.
  • the support means 60 preferably are designed as rollers, and are arranged circumferentially around the chute 32, resting upon an exterior radial flange section 32a of the chute 32.
  • the rollers 60 preferably are arranged in an equally spaced arrangement. Furthermore, the rollers 60 provide vertical support for the chute 32 and assist to keep the chute 32 properly aligned when in use.
  • the rollers 60 contribute to the overall stability and efficiency of the feed distributor 18. Because of the support offered by the tensioning wheels 54 and the rollers 60, the chute 32 may operate with minimal adjustments during the operating process.
  • Figure 4 shows a side view of the feed distributor 18.
  • the inlet 28 and the outlet 30 comprise the tubular chute 32.
  • a wear sleeve 62 Located within the inlet 28 is a wear sleeve 62.
  • the wear sleeve 62 preferably extends a distance above the inlet 28 and also a distance below the inlet 28.
  • the lip 34 helps to extend the life of the inlet 28.
  • the wear sleeve 62 is employed in the feed distributor 18, the previously described lip 34 is located at the top of the wear sleeve 62. While the wear sleeve 62 may be secured to the inlet 28, it preferably rests upon the feed platform 26.
  • a laterally extending flange 64 assists in the wear sleeve 62 resting on the feed platform 26.
  • the wear sleeve 62 When worn down, the wear sleeve 62 may be easily removed and replaced with a new sleeve.
  • the platform 26, as shown in Figure 4, preferably has a square shape, with the inlet 28 and the wear sleeve 62 centered within the platform 26.
  • the height of the platform 26 is shown as being approximately the same height that the wear sleeve 62 extends upwardly from the inlet 28. However, any height that will allow the platform to operate as a rock bed for the distributor 18 will suffice.
  • the outlet 30 has a base 66, an open side 68, and at least one closed side 70.
  • the open side 68 and the closed side or sides 70 extend laterally upward from the base 66.
  • the closed side 70 has a curvilinear shape (see Figures 2 and 3), which prevents rocks from unnecessarily building up in the corners of the outlet 30.
  • the outlet 30 may have straight sides 70, forming such other geometric shapes, and still fall within the scope of the invention.
  • the outlet 30 is relatively large, thereby increasing throughput capacity of the distributor 18.
  • the motor 24 and the gear reducer 24a are shown connected to a shaft 72, which drives the drive wheel 50.
  • the drive wheel 50 rotates the drive belt 52, which passes the tension wheels 54 and passes around the chute 32, causing the chute 32 to rotate.
  • the wear sleeve 62 preferably remains stationary, which contributes to even wear of the sleeve 62, thereby extending the life of the wear sleeve 62.
  • FIG 4A shows a side view of the distributor 18 with rocks 12 being fed into the distributor 18.
  • the feedbox 16 is located directly over the platform 26.
  • a suitable feedbox 16 will securely fit onto the platform 26 in a way that will contribute to the platform 26 acting as an accumulator or "dead bed” 74 for the distributor 18.
  • the dead bed 74 decreases wear on the distributor 18, the chute 32, and the wear sleeve 62. Because the rocks 12 build up on the platform 26 as opposed to constantly falling down upon the chute 32 and the wear sleeve 62, the wear will be reduced, because there is rock on rock sliding, as opposed to rock on distributor sliding.
  • Figure 4B shows the distributor 18 of Figure 4A after more rocks 12 have • fed been into the distributor 18.
  • a second dead bed 76 is formed in the outlet 30, defined by the base 66 and the closed side 70.
  • the second dead bed 76 further reduces wear on the chute 32 and the base 66.
  • the sloped shape of the dead bed 76 allows the rocks 12 to easily exit the outlet 30 without unnecessary wear on the chute 32.
  • the rotation of the chute 32 still provides that the rocks 12 are evenly distributed.
  • Figure 5 shows an overhead view of the crusher 20 and the chute 32. Because of the arrangement of the present design, the rocks 12 are evenly distributed throughout the crusher 20. Because the rocks 12 are fed into the crusher 20 with less size segregation, the crusher 20 will more efficiently crush the rocks 12. Likewise, it is advantageous that the chute 32 is centered over the crusher 20 for further uniformity of the rocks 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

L'invention concerne un distributeur d'alimentation rotatif (18) à utiliser avec des concasseurs de roche (20) et autres dispositifs. Le distributeur d'alimentation comporte une plate-forme (26) pour recevoir des roches et une goulotte ayant une entrée (28) et une sortie (30) pour le passage des roches. Le distributeur d'alimentation est conçu pour réduire l'usure et pour distribuer les roches de manière uniforme dans le concasseur par la mise en œuvre d'un système d'entraînement sans poulie qui fait tourner la goulotte de manière efficace.
PCT/US2006/005935 2006-02-21 2006-02-21 Distributeur d'alimentation rotatif WO2007097743A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2006/005935 WO2007097743A1 (fr) 2006-02-21 2006-02-21 Distributeur d'alimentation rotatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2006/005935 WO2007097743A1 (fr) 2006-02-21 2006-02-21 Distributeur d'alimentation rotatif

Publications (1)

Publication Number Publication Date
WO2007097743A1 true WO2007097743A1 (fr) 2007-08-30

Family

ID=38437669

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/005935 WO2007097743A1 (fr) 2006-02-21 2006-02-21 Distributeur d'alimentation rotatif

Country Status (1)

Country Link
WO (1) WO2007097743A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK178979B1 (en) * 2010-02-05 2017-07-24 Metso Minerals Ind Inc Spider having spider arms with open channel
CN109311018A (zh) * 2016-06-14 2019-02-05 山特维克知识产权股份有限公司 可旋转送料分配器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739937A (en) * 1985-08-19 1988-04-26 Pangborn Corporation Apparatus for conditioning granular material
US4754932A (en) * 1987-03-18 1988-07-05 Combustion Engineering, Inc. Coal pulverizer inerting and fire extinguishing system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739937A (en) * 1985-08-19 1988-04-26 Pangborn Corporation Apparatus for conditioning granular material
US4754932A (en) * 1987-03-18 1988-07-05 Combustion Engineering, Inc. Coal pulverizer inerting and fire extinguishing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK178979B1 (en) * 2010-02-05 2017-07-24 Metso Minerals Ind Inc Spider having spider arms with open channel
CN109311018A (zh) * 2016-06-14 2019-02-05 山特维克知识产权股份有限公司 可旋转送料分配器

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