SEALINGLESS LOADING POINT

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Nathaniel Neal
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1 12/2003 SEALINGLESS LOADING POINT DREAM DREAM loading point is fully dustproof and maintenance-free. Different from standard loading points, it does not need any skirtboard sealings. DREAM is easily installed in standard idler brackets and it is an excellent choice for conveyors with multiple loading points. The necessary number of DREAM slide balks can be installed in a row to suit the specific needs of material flow and dust control. Where additional dust binding is needed, ROXON CLEAR system can be combined with DREAM loading point. DREAM loading point package includes slide balks for both sides of the conveyor. Idlers at both ends of slide balks are of the same size as in standard three-roller conveyor brackets (ISO/EC standard bracket). Idlers are not included delivery. DREAM-EL front sealing ORDERING EXAMPLE: Bracket supports width L1 (mm) Idler diameter D (mm) Idler shaft diameter d (mm) Troughing angle (α) 30 of 45 Material of frame balk S = STEEL (epoxy coated) R = STAINLESS STEEL H = ACID PROOF STEEL Material of sliding sheet M = POLYETHENE (UHMWPE) V = PLYWOOD O = WITHOUT SHEET Alternative structure A = WITHOUT END ROLLER PLACES B = ROLLER PLACES IN ONE END C = ROLLER PLACES IN BOTH ENDS Idlers to be ordered separately DREAM S M A Ordering example see the separate sheet DREAM-C cover Ordering example see the separate sheet DREAM-TL rear sealing Ordering example see the separate sheet DREAM-LL additional skirt board Ordering example see the separate sheet DREAM slide balk Ordering example above

2 12/2003 Examples of alternative structures Ordering example includes 1 set of side balks, i.e. for both sides of the conveyor. The length of one slide balk is 2 meters. When DREAM units are installed consecutively up to the needed length, each joint is secured with a rubber sealing (rubber sealings are included in the delivery of consecutive assemblies). DREAM S M C; 1 pc C DREAM S M B; 2 pcs B B DREAM S M A; DREAM S M B; 1 pc 2 pcs B A B Main dimensions min 2.5 x belt width Standard idler bracket spacing of the conveyor Standard 30 or 45 idler bracket Standard 30 or 45 idler bracket Division of fixing holes for idler brackets. The quantity and position of idler brackets must be estimated by each case. Height dimensioning according to the idler bracket dimensions T roughing angle 30 Troughing angle 45 L1 L B D Weight (kg) Weight (kg) C A A1 H H1 alternative structure C A A1 H H1 alternative structure A B C A B C

3 12/2003 REAR SEALING DREAM - TL Rear sealing is designed for use at the end where belt enters the DREAM loading point. To adjust tightness according to the dust concentration, more than one rear sealings can be installed consecutively. Recommended quantity is 1 3 pcs. ORDERING EXAMPLE: DREAM - TL Belt width B (mm) Raising skirt board 1 = WITHOUT RAISING BOARD 2 = RAISING BOARD, HEIGHT 100 mm 3 = RAISING BOARD, HEIGHT 150 mm 4 = RAISING BOARD, HEIGHT 200 mm ø10 holes to the cover Sealing is formed according to the belt while installation B E F H Weight (kg) Raising board alternative Raising board alternative FRONT SEALING DREAM - EL Front sealing is designed for use at the outlet end of the DREAM loading point. To adjust tightness according to the dust concentration, more than one front sealings can be installed consecutively. Recommended quantity is 1 3 pcs. ORDERING EXAMPLE: DREAM - EL Belt width B (mm) Raising skirt board 1 = WITHOUT RAISING BOARD 2 = RAISING BOARD, HEIGHT 100 mm 3 = RAISING BOARD, HEIGHT 150 mm 4 = RAISING BOARD, HEIGHT 200 mm ø10 holes to the cover Sealing is formed according to the belt and material flow while installation H Weight (kg) B E F Raising board alternative Raising board alternative

4 12/2003 ADDITIONAL SKIRT BOARD DREAM - LL With DREAM loading point, the chute side walls must be dimensioned according to the drawing below. chute ORDERING EXAMPLE: DREAM - LL Belt width B (mm) Raising skirt board 1 = WITHOUT RAISING BOARD 2 = RAISING BOARD, HEIGHT 100 mm 3 = RAISING BOARD, HEIGHT 150 mm 4 = RAISING BOARD, HEIGHT 200 mm DREAM additional skirt board is needed when the chute walls cannot be extended so that the chute opening is clearly below the edge of the belt (see upper drawing). Ordering example includes 1 set of addtional skirt boards, i.e. for both sides of the conveyor. The length of one skirt board is 2 meters. ø13 holes to the cover chute Belt width B Additional skirt board weight (skirt boards for both sides, length 2 m) Belt width A3 T roughing angle 30 Troughing angle 45 H Raising board alternative B D D D D

5 12/2003 RAISING SKIRT BOARD DREAM - KL Raising skirt board can be added to DREAM loading point in applications where the material requires large space during loading. With raising skirt board material can be loaded safely even when material bed is high and material surface slope is steep. Furthermore, raising skirt board can be used with multiple loading points, installed after the first loading point in belt direction. DREAM - LL additional skirt board is needed when raising skirt board is installed in loading point ORDERING EXAMPLE: DREAM - KL - 2 Raising skirt board 2 = RAISING BOARD, HEIGHT H = 100 mm 3 = RAISING BOARD, HEIGHT H = 150 mm 4 = RAISING BOARD, HEIGHT H = 200 mm Weight of raising skirt board (skirt boards for both sides, length 2 m) H = 100 mm, weight 24,5 kg H = 150 mm, weight 37,5 kg H = 200 mm, weight 53,5 kg COVER FOR LOADING POINT DREAM - C Cover for DREAM loading point. Standard length of the cover is 2000 mm and material plywood. ORDERING EXAMPLE: DREAM - C Cover width V (mm) ø13 holes to the cover Belt width Idler diameter Cover width Troughing angle V Troughing angle B D Cover width V Cover weight (~ kg) Shute opening to the cover while installation. To be sealed as required in the specific case

6 9/98 LOADING OF BELT CONVEYOR Key point of well operating conveyor system Is your conveyor as shown in the picture? * dust in the air * eccentric material flow from one conveyor to another * travel direction of falling material flow and belt are different * material overflow: part of conveyor and tail pulley covered by the dust * needs much expensive manual shoveling work Most of these problems can be minimized or removed if the loading point is designed well, taking into consideration the shape of the chute, skirt board sealing and support of the belt. With ROXEL-ROXID-FLEXID products these targets are easily realized. PROPER FUNCTION AT LOADING SECTION - with ROXON s components for loading point ROXEL 14 ROXEL 10, 11 SKIRT BOARD SEALING ROXEL1 and -3 type skirt board sealings can be installed both on existing and/or fixed skirt board con-struction and thus can improve operation of loading point. * ROXEL 1, skirt board sealing * ROXEL 3, skirt board sealing IDLER GUIDING SKIRT BOARDS With ROXEL elements of standard construction, it is possible to build a tight enclosure and side walls for guiding material flow at the conveyor loading point. * ROXEL 10, low wall * ROXEL 11, high wall * ROXEL 12 and 13, rear wall * ROXEL 14, plywood cover * ROXEL 15, discharge curtain ROXID STANDARD IDLER BRACLET ROXEL 3 SUPPORT OF BELT There is a wide range of alternatives for support of conveyor belts at loading points, in addition to conventional support with idlers. * steel idlers * impact idlers * ROXID -sliding plate * FLEXID -sliding balk

7 1/98 SUPPORTING ALTERNATIVES OF BELT AT LOADING POINT OF CONVEYOR There are a versatile range of different alternatives for support of conveyor belts at loading points. Components are fixed on standard type idler brackets, thus it is easy to add them on existing conveyor constructions, too. COMPONENTS ENVIRONMENTAL CONDITIONS - TS-type steel idler in the middle - TS-type steel idlers at sides - minor dusting - small particle sizes - low dropping height - LA-type impact idler in the middle - TS-type steel idlers at sides - minor dusting - medium particle sizes - low dropping height - LA-type impact idler in the middle - LA-type impact idlers at sides - minor dusting - small particle sizes - high dropping height - TS-type steel idler in the middle - ROXID-sliding plates at sides - dusting materials - small particle sizes - low dropping height - LA-type impact idler in the middle - ROXID-sliding plates at sides - minor dusting - medium particle sizes - low dropping height - ROXID-sliding plates in the middle - ROXID-sliding plates at sides - dusting materials - small particle sizes - low dropping height - FLEXID-sliding plates in the middle - ROXID-sliding plates at sides - dusting materials - medium particle sizes - normal dropping height - FLEXID-sliding plates in the middle - FLEXID-sliding plates at sides - minor dusting - large particle sizes - high dropping height

8 2/2004 SKIRT BOARD SEALING ROXEL1 ROXEL -sealing profiles are suitable especially for dusting fine material like peat, chip and powdery materials. The profiles are fixed to the guiding skirt board construction of customer s own one. The delivery includes all the needed board distance A fixing elements. ROXEL -sealing profiles are easy to place onto the steel skirt boards under the construction or to the existing ones according to enclosed dimensions. ORDERING EXAMPLE: ROXEL1 - U 66 m (wear adjustment margin) ROXEL 1 13 to the hopper plate recommended interval 300 Type of spare part for the fixing clips: ROXEL 10 - F - K Type of spare part for the wearable part: ROXEL 1 - T - K (rubber) ROXEL 1 - T - U (urethane) Material of the wear part K = RUBBER U= POLYURETHANE Quantity of skirt board sealing (m) Delivery includes fixing clips, screws and bolts for the fixing intervals of 300 mm. ROXEL1 consists of a rubber plate band and is a skirt board sealing, for a universal purpose, used in the board constructions on the loading points. Rubber seal is pushed to the chute wall with the help of clips and an angle bar. The angle bar is available as 3 metres long bars. board distance A 13 to the hopper plate (wear adjustment margin) ROXEL 3 recommended interval 300 Type of spare part for the fixing clips: ROXEL 10 - F - U ORDERING EXAMPLE: 24 m Quantity of skirt board sealing (m) ORDERED QUANTITY TO BE ROUND OFF TO THE FULL ELEMENT LENGTHS OF 3 m ROXEL 3 delivered as a 3 metres element. Ordered quantity will be rounded off to full element lengths. Delivery consisting of fixing clips, screws and bolts 10 pcs/element. LOCATION OF THE SEALING PROFILES ON THE FLAT BELT When using a flat belt, the sealing profile must be fixed on to an inclined additional part. With the it is always recommended to use the extra board inside the chute. A piece of approximately ~30 mm is cut off from the tip of in flat belt applications. Profiles to be ordered according to the ordering examples below. board distance A Ordering example for the profile: ROXEL 1 - P board distance A Type of spare part for the skirt urethan: ROXEL 3 - T Ordering example for the profile: ROXEL 3 - P The sealing part of the ROXEL 3 -multilip, sealing against the belt, is of wear resistance polyurethane. Due to three different surfaces against the belt, the tightness is very good. Polyurethane is casted on a hot galvanized profile which stiffens and makes the sealing construction solid. It also guarantees good tightness in the direction of the belt. Fixing and adjustment of the sealing element with different methods in the chute construction is easy. Note! ROXEL 1 and 3 skirt board sealings to be ordered according combined sealing meters. For example, if the loading point and skirts are 3 meters long, order the skirtboard in 6 meters. Recommended value for the board distance A Belt width B α 0 Troughing angle = α = 20 α = 30 α =

9 4/2000 SKIRT BOARDS ROXEL10 (LOW) ROXEL11 (HIGH) ROXEL board series is used as a universal board, suitable as a skirt board for most materials. Traditional ROXEL1-rubber sealing or - polyurethane multilip sealing can be used as skirt board sealing. Select high or low board height depending on the material. Dusting is avoided by using a cover and the separate dedusting systems can be coupled on. Coverplates can be delivered on special request. The board consists of standard elements which are available to be joined with each other up to the needed length. Support for the flange of the conveyor frame can be fitted steplessly and thus easy to modify even on existing conveyor frames. ROXEL10K- - low skirt boards - ROXEL1 rubber sealing - low skirt boards - polyurethane multilip sealing ORDERING EXAMPLE: Board construction (see below) Belt width B (mm) Troughing angle α (20, 30 or 45 ) Nominal length of the board L (mm) Gap shelter W= GAP SHELTERS ON BOTH SIDES V= GAP SHELTER ONLY ON OTHER SIDE X= WITHOUT GAP SHELTERS NOTE. LOW BOARD The order includes a pair of skirt boards, i.e. one skirt boardfor each side. Cover ROXEL14-(B) ordered separately. Length 1.5 mm. ROXEL10K W HIGH BOARD ROXEL11K- - high skirt boards - ROXEL1 rubber sealing - high skirt boards - polyurethane multilip sealing ROXEL11KL- - high skirt boards - ROXEL1 rubber sealing - inner guiding plate ROXEL10U- ROXEL11U- ROXEL11UL- - high skirt boards - polyurethane multilip sealing - inner guiding plate See the dimensions on the next page. NOMINAL EXACT SUPPORT LENGTH L LENGTH L LEGS OF THE OF THE (pcs) BOARD BOARD Fixing holes of conveyor frame is made at site.

10 11/98 BOARD DIMENSION H A WEIGHT * (kg/m) B ROXEL10K ROXEL10U ROXEL11K ROXEL11U E K ROXEL ROXEL α = 20 α = 30 α = 45 α = 20 α = 30 α = 45 α = 20 α = 30 α = 45 α = 20 α = 30 α = 45 α = 20 α = 30 α = * = extra weight 26 kg/m, when W; 13 kg/m, when V; 11 kg/m, when L REAR BOARD ROXEL12 (LOW) ROXEL13 (HIGH) Rear boards ROXEL12 and 13 are used with the skirt boards ROXEL10 and 11. They prevent the material from flowing backwards and dust the loading point. The rear boards are fixed to the skirt boards and support legs with screw joints. They are easy to loosen for maintenance work. The lower edge of the rubber sealing is modelled to follow the belt while installing. ROXEL12- ORDERING EXAMPLE: ROXEL Type Construction 12= for board ROXEL10 13= for board ROXEL11 Belt width B (mm) Troughing angle α (20, 30 or 45 ) ROXEL13- B A C WEIGHT α = 20 α = 30 α = 45 α = 20 α = 30 α = 45 (kg/st) , , , , , , ,4 B A A1 C WEIGHT α = 20 α = 30 α = 45 α = 20 α = 30 α = 45 α = 20 α = 30 α = 45 (kg/st) , , , , , ,4

11 11/98 COVER FOR THE STANDARD BOARD ROXEL14 ROXEL 14-plywood cover is used with the standard skirt boards ROXEL10 and 11. On the boards there are fixing holes ready for the fitting of the cover. With the help of the cover, a tight construction to the loading point is reached. It is easy to make the holes into the plywood cover based on the chute construction. (DELIVERY LENGHT) ORDERING EXAMPLE: ROXEL Type Cover width C (mm) Delivery includes coverplate and fixing screws. Cover is perforated and cut to the right length while installing. Edges are notched while installing. FRONT CURTAIN Belt Width C (when board distance = A) width B ROXEL 10 ROXEL 11 α = 20 α = 30 α = 45 α = 20 α = 30 α = ROXEL15 ROXEL15 front curtain is used with the ROXEL14- cover. The loading point of the material on the conveyor is easy to seal with the front curtain. It prevents dust from moving with the material flow, when the loading point is connected to the mechanical dedusting. Fixing holes D14 are drilled to the cover while installing. ORDERING EXAMPLE: ROXEL 15 - Type Belt width B (mm) Delivery includes a rubber curtain with fixing bars and screws. Belt travel direction Front curtains can be placed one after the other when needed to reach a tighter construction. Curtain is narrowed and formed according to the belt while installing. Belt width B L H Weight (kg)

12 1/99 SLIDING PLATE FOR LOADING POINT ROXID The ROXID sliding plate consists of a bent steel construction made of structural stainless or acid proof steel. On the plate there is a low-friction UHMWPE polyethene sheet fixed with bolts. The width of the sliding plate L1 is according to the idler lengths (of ISO-standards) thus the plate can be installed on the most normal 3-roller idler brackets replacing the side roller. The width of the plate can be according to special request, too. Sliding polyurethene sheets can be replaced by plywood. If requested, sliding plates are also available for 2- and 5-rollers idler brackets. Minimum supporting distance of balk at the loading section is 0,5 m. ORDERING EXAMPLE: Type Idler length L (mm) Idler diameter D (mm), or 159 Idler shaft diameter d (mm) 20 or 25 Material of steel balk S= plastic epoxy coated (Fe37B) R= stainless steel H= acid proof steel Material of sliding sheet M= polyethene (UHMWPE) V= plywood O= without sheet ROXID S M The sliding plate is fixed onto the brackets by bolts. Delivery includes 8 pc bolts and nuts per plate. Bolt sizes: M12x50, when d=20 M16x60, when d=25 L L1 B Weight (kg) Model M Model O D H , when d = 20 18, when d = 25 Several ROXID sliding plates can be installed after each other and so build a construction which improves tightness above the long skirt boards. Idler bracket with rollers on both ends of the balk Belt travel direction Distance between brackets to be selected case by case.

13 11/98 SLIDING BALK FOR LOADING POINT FLEXID FLEXID-sliding balk system consist of a frame, which is fixed to the stand idler bracket, together with the traditional rubber slide bars of plast. The sliding balk frame can be installed either by replacing some idlers or only the middle idlers. FLEXID is easy to fix to all existing idler brackets. ROXON will, with pleasure help you find the right solution if needed. Delivery includes a slide bar with fixing screws. When the whole loading point is build up with slide bars order 3 pcs of FLEXID-bars. Please, order the idler bracket separately if needed. ORDERING EXAMPLE: FLEXID S 1220 Type Idler length L (mm) Type number of idler bracket Idler diameter D (mm) Material of frame bar S = PLASTIC EPOXY COATED (FE37B) Z = HOT DIP GALVANIZED (FE37B) R = STAINLESS STEEL (AISI 304) H = ACID PROOF (AISI 316) Length of sliding balk F (mm) (1220 or 1500) Idler brackets on both sides. L1 (bracket) A (slide bar) Fixing hole spacing 50. The middle balk is fixed onto the frame pipe of the bracket. ø14 Side balks are fixed onto the shaft notch of the bracket. Use so many idler brackets to support the bars as necessary to achieve the loading point tension. Use enclosed diagram as a guide when selecting the material- and idler bracket quantity. Calculate the material on the belt as follows: m = Q 3.6 v Q = capacity of the conveyor [t/h] v = speed of the conveyor [m/s] When replacing the idler on the sides with flexid can sometimes leave the outer slidebar out. Thus the quantity on the table below is less. This abnormal quantity has to be informed separately when ordering. L1 A B Slidebars L (L+10 (L+8) (belt) pcs n Tabel 1 Bracket BDK- 22, 42, 52 23, 43, 53 24, 44, 54 Idler dia. D H H1 Weight (kg) Frame lenght F = 1220 Frame lenght F = 1500 Idler lenght L Idler lenght L (B=) (B=) (B=1000) (B=1200) (B=) (B=1600) (B=) (B=) (B=1000) (B=1200) (B=) (B=1600)

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