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
  • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
  • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
  • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes

Definitions

• FIG. 1 A block diagram illustrating an exemplary computing environment in which flat decking is employed.
• FIG. 1 A block diagram illustrating an exemplary computing environment in which flat decking is employed.
• FIG. 1 A block diagram illustrating an exemplary computing environment in which flat decking is employed.
• FIG. 1 A block diagram illustrating an exemplary computing environment in which flat decking is employed.
• FIG. 1 A block diagram illustrating an exemplary computing environment in which flat decking is employed in vibratory machines in many applications such as coal washing, bore treatment and separation of salt, potash, sand and gravel etc.
• FIG. 1 A block diagram illustrating an exemplary computing environment in which uses the decking panels are clamped along their opposite marginal side edges to the machine.
• unevenness which often occurs in the machine beds tends to reduce the life of the deck.
• a further disadvantage of the above construction is that the material being screened tends to gather about the side angle members and cause clogging up of portion of the screen.
• the above types of screen are normally formed of stainless steel material. However, other screens in use are moulded of plastics material such as polyurethane. Whilst this type of screen can cope with uneven mountings, the capacity of such screens is less than the capacity of the above type of metal screen and thus is less efficient in use.
• the present invention aims to overcome or alleviate at least some of the above disadvantages by providing an improved decking particularly suited to vibratory screening applications which has substantially the same capacity of metal decking assemblies but which overcomes or reduces the disadvantages associated with the use thereof.
• Other objects and advantages of the invention will be hereinafter apparent.
• the invention resides broadly in a screening deck panel including a screen assembly defined by a plurality of screening wires arranged in fixed spaced relationship on spaced support members, at least part of the periphery of said screen assembly being embedded in encapsulating edge members of resilient material, said edge members constituting resilient mounting means for said deck panel.
• the invention resides broadly in a screening deck panel including a screen assembly defined by a plurality of parallel coplanar screening wires arranged in fixed spaced relationship ; on spaced parallel support members disposed transversely therebeneath, said support members having their end extremities constituting opposite sides of said screen assembly, said screening wires extending to the end extremities of said support members, both said end extremities and said screening wires at said end extremities being embedded in encapsulating edge members of resilient material, said edge members constituting resilient mounting means for said deck panel.
• each resilient edge member has opposite securing faces disposed uppermost and lowermost in operative dispositions, said faces constituting upper and lower extremities of the screening deck panel.
• the encapsulating edge members are formed by a moulding process, and the resilient material for the encapsulating edge members may suitably be polyurethane.
• the resilient material for the encapsulating edge members may suitably be polyurethane.
• Fig. 1 is a perspective view of a screening deck panel according to the present invention
• Fig. 2 is a sectional view along line A-A of Fig. 1, and
• Fig. 3 is a cut-away partial side view of the deck according to the present invention.
• BEST MODE FOR CARRYING OUT THE INVENTION Referring to the drawings there is illustrated a screening deck panel 10 according to the present invention which as is conventional includes a plurality of transversely extending frame or support members 11 which support a plurality of longitudinally extending screening wires 12 which in this embodiment are of a wedge shape cross-section and which are spaced apart to define therebetween a plurality of screening apertures 13.
• the wires 12 and support frame members 11 are formed of stainless steel and each wire 12 is secured to each support member 11 at its cross-over point by means of welding.
• edge members 14 Disposed at the opposite sides of the deck 10 are respective edge members 14 which extend longitudinally of the deck panel 10 and which are formed of a flexible and resilient non-metallic material such as a rubber or plastics material, preferably polyurethane.
• the edge mearibers 14 as illustrated encapsulate the opposite side marginal portions of the deck panel 10 so as to support the deck panel 10 against collapse.
• the edge members 14 extend above the wedge wires 12 and below the support members 11 so as to define a support for the deck when arranged on a machine bed and to permit clamping of the deck 10 by means of the edge members 14 to the machine bed, these uppermost and lowermost securing faces 15 and 16, respectively, constituting the upper and lower extremities of the deck panel 10.
• edge members 14 are rectangular in cross-section and extend inwardly of the side portions of the deck panel a sufficient distance to support and encapsulate both the wedge wires 12 and the end extremities 17 of the support frame members 11 and thus prevent collapsing movement of the frame members 11 in a longitudinal direction.
• the opposite edge members 14 of the deck panel 10 are formed in a moulding operation.
• the respective wires 12 and frame support members 11 are assembled and supported in a substantially vertical plane so that one side marginal portion thereof extends into a heated mould.
• Polyurethane or any other suitable material is then poured into the mould and allowed to cure so as to form a solid edge member 14 which encapsulates both the end portions of the support members 11 and the wedge wires 12 at the marginal portions of the deck.
• a deck panel 10 formed in the above manner is, unlike the rigid wholly metal decks, somewhat flexible so that it may easily conform to irregularities in the machine bed without importing stresses into the operative screening members. This will result in a deck which not only has a high treatment capacity but which also has a long working life.

Landscapes

• Casting Or Compression Moulding Of Plastics Or The Like (AREA)
• Combined Means For Separation Of Solids (AREA)
• Tables And Desks Characterized By Structural Shape (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=3771327

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (1)

Citations (5)

Family Cites Families (1)

• 1986
  • 1986-10-16 GB GB8713826A patent/GB2190311B/en not_active Expired
  • 1986-10-16 ZA ZA867842A patent/ZA867842B/xx unknown
  • 1986-10-16 DE DE19863690546 patent/DE3690546T1/de not_active Ceased
  • 1986-10-16 EP EP86906226A patent/EP0241524A1/en active Pending
  • 1986-10-16 WO PCT/AU1986/000308 patent/WO1987002279A1/en active Application Filing
  • 1986-10-16 CA CA000520643A patent/CA1308694C/en not_active Expired - Fee Related

Patent Citations (5)

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