Analysis of capabilities of fiber separation in the existing parameters of the teeth profile of a disc saw

The article covers the gripping capabilities of cotton fiber by tooth profiles of the disc saw. The working parameters between the teeth have been determined. The process of impact of cottonseeds on the saw teeth has been studied, as well as the regularity of the effect of the impact force on the saw tooth and on the indicators of the hardness of the seed shell have been determined.

Increasing the effectiveness of the fiber separating machine by abrasive blasting of the teeth of the saw cylinder discs

Abrasive blasting of the side surfaces of the teeth of saw blades of a cotton processing machine by particles of black silicon carbide is proposed. The required processing quality is achieved by the formation of an effective microrelief on the treated surface. Keywords: saw blade, abrasive blasting, fiber separation, roughness, pressure, angle of attack, fiber. [email protected]

Fiber Separation From Wood Pulp Using Slider Crank Mechanism

The Fiber separating machine is used to separate the fibers from their raw material (wood pulp). The machine is based on slider crank mechanism in this an iron disk is mounted to the electrical motor. A slider with a rough tooth is present in its bottom. By using the connecting rod, the disk and slider are connected together. The connecting rod converts the rotary motion into the linear motion. By using the forward and backward motion the fibers are de - fiberized from the raw material (wood pulp). This machine is used for small scale industries where bulk machines are not required. The main application of this wood pulp fiber is the making of napkins.

Comparison of digestible and metabolizable energy, digestible phosphorus and amino acid content of corn ethanol co-products from Brazil and United States produced using fiber separation technology for swine

Three experiments (Exp.) were conducted to determine and compare the digestibility of nutrients and energy of corn distillers dried grains with solubles (DDGS) from the US (USDDGS), a dried mixture of corn bran with solubles (CBS) from Brazil (BRCBS), and high protein corn distillers dried grains (HP-DDG) from the US (USHPDG) and Brazil (BRHPDG) in growing pigs. The feed ingredients were evaluated for apparent total tract digestibility (ATTD) of gross energy (GE), dry matter (DM), crude protein (CP), ether extract (EE), neutral and acid detergent fiber (NDF and ADF, respectively), digestible and metabolizable energy (DE and ME, respectively) using total collection and index methods in Exp. 1; ATTD and standardized total tract digestibility (STTD) of phosphorus (P) in Exp. 2; and apparent (AID) and standardized (SID) ileal digestibilities of CP and amino acids (AA) in Exp. 3. Fifty crossbred barrows (32.4 ± 6.9 kg, 38.3 ± 5.2 kg and 46.2 ± 5.3 kg BW, in Exp. 1, 2 and 3, respectively) were fed a corn basal diet in Exp. 1, a P-free diet in Exp. 2, and a N-free diet in Exp. 3, or diets with 40% inclusion of test ingredients to provide 10 replications per treatment. Pigs were housed individually in metabolism cages (Exp. 1) or in pens (Exp. 2 and 3) and fed at 2.8 times the maintenance DE requirement (110 kcal / kg BW 0.75) based on their BW at the beginning of each experiment. Except for ATTD of NDF, which tended (P = 0.058) to be greater by index method compared to total collection method, no difference between total collection and index methods were observed for ATTD of remaining nutrients and DE. The ATTD of DM, GE, NDF and DE content of BRHPDG were greater (P < 0.001) than USHPDG, BRCBS and USDDGS. The AID of CP, Arg, His, Ile, Leu, Lys, Thr and Val; and the SID of His, Leu, Lys, and Val of BRHPDG were 8 to 36% greater (P < 0.05) than those from USHPDG. Except for Trp, all AID and SID AA values were greater (P < 0.05) in BRHPDG than in USHPDG. The ATTD of DM, GE, NDF, and ADF; DE and ME content; AID of CP, Arg, Ileu, Leu, Phe, Thr, and Trp; and SID of CP, Arg, Phe, and Thr of USDDGS were 9 to 45% greater (P < 0.05) than those in BRCBS. The ATTD and the STTD of P in USHPDG and USDDGS were 26 to 42% greater (P < 0.05) compared with BRHPDG and BRCBS. In conclusion, BRHPDG had a greater digestibility of energy and most AA than USHPDG, while the BRCBS evaluated had lower nutritional value than the USDDGS source.

Optofluidic Fiber Component for Separation and counting of Micron-Sized Particles

An all-fiber separation component capable of sorting and counting micron-sized particles based on size is presented. A sequence of silica fiber capillaries with various diameters and longitudinal cavities were used to fabricate the component for separation and detection in an uninterrupted flow. Fluorescence microparticles of 1 μm and 10 μm sizes are mixed in a visco-elastic fluid and infused into the all-fiber separation component. Elasto-inertial forces focus the larger particle to the center of the silica capillary, while the smaller microparticles exit from a side capillary. Analysis of the separated particles at the output showed a separation efficiency of 100% for the 10 μm and 97% for the 1 μm particles. In addition, the counting of the larger particles is demonstrated in the same flow. The separated 10 μm particles are further routed through another all-fiber component for counting. A counting speed of ~1400 particles/min and with the variation in amplitude of 10% is achived. A combination of separation and counting can be powerful tool may find several applications in biology and medicine, such as separation and analysis of exosomes, bacteria, and blood cell sub-populations.

Processing of teeth of saw blades of cotton processing machines with a stream of compressed air with abrasive particles

In the article, it is presented materials on abrasive blasting of teeth of saw blades of cotton processing machines with particles of black silicon carbide. The micro-profile of the surface, characterized by the height and pitch of irregularities, after microcutting with abrasive particles is able to intensify the process of fiber separation by activating the tank surfaces of the teeth. This machining process is also accompanied by deformation hardening of the surface layer of the teeth, leading to an increase in the wear resistance and durability of the saws.

Comprehensive evaluation of the industrial processing effects on the fiber properties of the pulps from wood residues

Wood processing residue, as an essential forest resource, is underestimated in the industrial applications. With the development of pulping technology, fiber quality and cost control have become the important prospects. It is very crucial to investigate the influencing factors of pulping, designed to reveal the relationship between fiber separation and physical performances. In this study, a range of effect factors of large-scale pulping process, including wood species, pretreatment, mechanical conditions, and post-bleaching treatment, were comprehensively investigated. The results illustrated that the industrial pulping process affected the dimensions of the fibers, their surface morphology, chemical structure, and thermal stability. The separated positions of the fibers were determined collectively by the mechanical temperature, time, and wood species. In addition, mild bleaching could effectively increase the crystallinity index, accessibility of the hydroxyl groups, and water retention values. However, it exerted a negative influence on the thermal stability. Further, chemical-assisted-refinement can replace higher temperature and prolonged ones to obtain pulp fibers with high quality while consuming less energy. Improved knowledge of how the industrial affects the fiber separation of a wood matrix and pulp quality is required as a basis for the development of the pulp and paper industry.

249 Evaluation of FluidQuip Dried Distillers Grains plus Solubles in Cattle Finishing Diets

A 112 d finishing study was conducted to evaluate the effects of feeding dried distillers grains plus solubles (DDGS) from the MSC-Fiber stream of the FluidQuip post-fermentation fiber separation process compared to conventional DDGS. Yearling crossbred steers (n = 240, initial BW = 463 ± 35kg) were blocked by initial BW, stratified by BW, and assigned randomly to pen (n = 30; 8 steers/pen). Treatments were arranged as a 2×2 + 1 factorial with DDGS type (MSC DDGS [MSC]; Conventional DDGS [CONV]) and inclusion level (20 or 40% diet DM) as the factors. All treatments were compared to a corn-based control (CON). DDGS replaced a 60:40 blend of high-moisture corn and dry-rolled corn. All diets contained 7.5% alfalfa hay and supplement. Data were analyzed as a randomized block design with pen as experimental unit and block as fixed effect. Increasing concentrations of CONV or MSC resulted in a linear increase in DMI (P < 0.01). Steers fed 40% MSC had the greatest DMI (P < 0.01) while CON steers had the least (P < 0.02). Daily gains for MSC steers linearly increased (P = 0.03), while CONV steers showed a tendency for a quadratic response to ADG (P=0.08). Feed efficiency of CONV steers increased quadratically (P = 0.04) and tended to decrease linearly (P = 0.09) for steers fed MSC. Efficiency was greatest for 20% CONV but not different (P > 0.16) than CON, or 20% MSC. Steers fed 40% MSC or 40% CONV were not different in feed efficiency. Inclusion of MSC DDGS resulted in linear increases in DMI and ADG over CON, but decreased feed efficiency by 1.0 and 5.3% resulting in MSC DDGS having a relative feeding value of 95.0 and 86.7% of corn at 20 and 40% DM, respectively.