OPTIMIZATION OF MILLING FARM RESIDUES USING A LOCAL HAMMER MILL

ABD EL MOTTALEB, A.F.; EL DAHSHAN, W.A.; BEJO, L.

doi:10.21608/mjae.2009.107772

OPTIMIZATION OF MILLING FARM RESIDUES USING A LOCAL HAMMER MILL

Document Type : Original Article

Authors

¹ ASSOC. PROF., AGR. RES. CENTRE, AGR. ENG. RES. INST., CAIRO, EGYPT.

² ENG.AL OBOUR HIGH INST. OF ENG. AND TEC., CAIRO, EGYPT

³ ASSOC.PROF., INST.OF WOOD AND PAPER TEC., FAC. OF WOOD SC., UNI. OF WEST HUNGARY, SOPRON, HUNGARY

10.21608/mjae.2009.107772

Abstract

Field crop residues are considered to be one of the most critical problems facing the Egyptian farmers. The first step towards solving this problem is to cut, crush and mill these lignocellulosic materials in order to be used as raw materials in several industries.
For optimizing the milling parameters, the performance of a local hammer mill machine was experimentally investigated during crushing some different types of farm residues (cotton stalks, maize stalks and rice straw), as a function of change in hammer drum speed, concave hole diameter and the residues moisture content. The machine performance was evaluated in terms of machine productivity, particle size distribution, and energy requirements.
The experimental results revealed that the performance of the hammer mill was in the optimum region under the following conditions:
Hammer drum speed of 44.2 m/s, concave hole diameter of 2 mm and residues moisture content of maize stalks 4.1% , rice straw 3.4% and cotton stalks 7.4%.

Keywords

Main Subjects

Agricultural Power and Machinery Engineering

References

Abd El-Mottaleb, A.F. (l993): A study of crushing machines for the agricultural field raw material for industrialization and factors affecting the softness degree and pink boll worms control. M.Sc. Fac. of Agric. Agric. Eng. Dept. Zagazig U.

Abd El-Mottaleb, A. F.; and A.R. Obaia (2006) : Study on manufacture of animal fooder from date palm leaves. J. Agric. Sci. Mansoura U. 31 (7): 163-175.

Agricultural Statistics (2007):Economic Affairs Sector. Ministry of Agr. and Land Rec. Cairo, Egypt.

AOAC (l996): Official methods of analysis, 20^th Ed., Assoc.of Official Analyt. Chem.Wash. D.C.

ASAE (2001) : Methods of determining and expressing fineness of feed materials by sieving. American Society of Agricultural Engineering standards, 45^th Ed. S 319.3 , St. Joseph, Mich.

Egela, M.I.; Y.F. Sharobeen ; and M.E. Badawy (2003) : Modification of some operational parameters for a local manufactured hammer mill. The 11th Ann. Conference of the Misr Soc. of Ag. Eng. , 15-16 Oct., 830-840.

Egyptian Standard Specification of Wood (1993,2006): ES 906, UDC 674, part 1,2 and UDC 3578, part 2,4. Egyptian Organization for Standardization and Quality control. Cairo, Egypt.

Hashish, A.E.; M.A. Hassan and A.F. Abd El-Mottaleb (l994): Some factors affecting performance of chopping, crushing and grinding equipment for field raw-materials. J. Chopping grinding equipment. Misr J. Ag. Eng. , 11 (3) : 669-682.

Hegazy K.E. (2006): Development and evaluation a locally made grain crusher to suit production of livestock feeds from date pits. J. Agric. Sci. MansouraU., 31.

Imbabi, A.T., (2003): Improving a crop-residues cutting machine for environment preservation. Misr. J. Agr. Eng., 20 (3): 783-805.

Kurt, G. (l979): Engineering formulas . 3^rd. Ed. Mc Graw – Hill book Co.

Morad, M.M. M.,A. Aranout, O.A. Omar and H.I. Ahmed (2007): Effect of mechanical chopping and adding different farm residues on soil physical properties and wheat yield. Zagazig J. Agric. Res., 34 (4): 781-804.

Yousef, I.S. (2005): A study on performance improvement of the local manufactured hammer mill used in poullity forms. J. Agric., Sci. Mansoura Univ., 2) (11): 6827-6840.