Technical handbook for the paddy rice postharvest industry in ...

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70 POSTHARVEST INDUSTRY HANDBOOK3.38. Dimensions of standardidlers using 12.7 emcenter rollers.3.39. Self-aligning idlers.(Courtesy of ContinentalConveyor Corp.)location. Also, some grains are crushed or cracked between the plow and the beltsurface. If the plow is adjusted too close to the belt, excess belt wear results.Trippers are available as hand-propelled, self-propelled, or automatic. The choicedepends on the particular installation, its capacity, and system operation. A simplelight-duty hand-propelled tripper and its dimensions are shown in Figure 3.41. Notethe direction of belt travel. As the belt passes over the top pulley, the paddy isdischarged immediately and spouted to the left or right as desired. The hand crank
71 CONVEYING3.40. Self-aligning camberreturn idlers. (Courtesyof Continental ConveyorCorp.)3.41. Schematic and dimensionsof light-duty,hand-propelled tripperfor various belt widths.(Courtesy of ContinentalConveyor Corp.)with chain drive on the side permits the operator to move the tripper in eitherdirection along the belt. A tripper normally is installed on two I-beams running thelength of the belt conveyor and becomes part of the conveyor's frame.Note the two-way flip-flop valve in Figure 3.41, which permits the grain to bedischarged on either side of the belt as desired. This is a simple arrangement used in
Page 1 and 2: Chapter 3CONVEYINGIn the paddy post
Page 3 and 4: 47 CONVEYINGTypesBucket elevators a
Page 5 and 6: 49 CONVEYING3.6. Elevator discharge
Page 7 and 8: 51 CONVEYING3.7. Elevator head show
Page 9 and 10: 53 CONVEYING8.11. Boot section desi
Page 11 and 12: 55 CONVEYING3.15. Elevator with pla
Page 13 and 14: 57 CONVEYINGments vary with segment
Page 15 and 16: 59 CONVEYINGHorsepower requirements
Page 17 and 18: 61 CONVEYING3.24. Standard hangerbe
Page 19 and 20: 63 CONVEYING3.28. Drive arrangement
Page 21 and 22: 65 CONVEYINGWhen the auger is opera
Page 23 and 24: 67 CONVEYINGExample: Determine belt
Page 25: 69 CONVEYINGeither side of the belt
Page 29 and 30: 73 CONVEYING3.44. Wing-type pulley.
Page 31 and 32: 75 CONVEYING3.47. Cross section ofc
Page 33 and 34: 77 CONVEYINGMost spouting is straig
Page 35 and 36: 79 CONVEYING3.54. Five-way distribu

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