Cassava starch production machine

Cassava starch production process 1, process flows(see figure) cleaning water, cassava, cleaning and peeling, cutting, disintegration, separation of starch and residue, drying of the residue, dehydration of the residue, acid system,Second, the main process (1) material preparation (2) transport of raw materials (3) Cleaning (4) break to pieces process 1 separation of fine sediment, grit removal, separation of protein, (water treatment ) process 2 Dejuice spot, grit removal, starch refinement, (small granules recovery, waster water treatment, ) dehydration, air drying, smoothing, cooling and transporting, screening, packing Second, the main process (1) Material preparation Raw material is the base of production, and the raw material quality is directly related to the product quality. Fresh cassava after harvest, the soil, root, and the wood part should be eliminate, stacked on a clean surface, to avoid mixing iron, nails, stone, wood and other debris, required the day of harvest, the same day into the factory, the day of processing to ensure the freshness of raw materials, to improve flour yield and product quality. (2) Transport of raw materials Transport the cassava from the storage spot to the washing machine dumps by cassava picking machine, conveyor, and the raw materials required to ensure the normal supply process. In the transportation process, to prevent, in particular iron, nails, stone, wood and other debris mixed. If it is found, debris should be promptly taken out. (3) Cleaning With drum-type washing machine, it is made up of washing machine sub-rough area, shower area, and wash area. The raw cassava rotates forward with the round wall of the cylinder, with water as medium (with water as 1: 4) washing, removal of skin. And then washed by three pulp shot washer, asked to clean the sediment through washing, peeling rate of 80% or more, and then into the disintegration process. (4) Break to pieces (5) The starch residue separation (6) PH value adjusted (7) Grit removal (8) De-juice and refinement (9) Dehydration (10) Dry (11) Packing and storage 1 We must ensure the freshness of raw cassava to ensure product quality and enhance recovery. 2 Peeling thoroughly, because cyanide toxins concentrated in the cortex of cassava, remove the cassava skin thoroughly to greatly reduce the cyanide content. 3 The processing requires large water consumption and the processing water to achieve drinking water standards. 4 Do not use iron equipment and pipelines, as cyanide in case of ferrous iron would combine into a blue ferrocyanide colored starch and affect starch quality. Combined with starch production process as a whole is basically little acid, therefore, the equipment used, at best stainless steel tube. 5 In the production process, the material transportation volume is large, which needs more pumps. The different pumps not only play the transport role but also require a certain pressure, giving power to the materials, to achieve separation at the high-speed rotating of the equipment. 6 Since it is the nature of starch that’s easy to precipitate, and fiber is the inhomogeneous material, therefore pipe elbows and other parts should have flanged or wood joints, easy to disassemble and clean if blocked. 7 To ensure product quality, we should pay attention to the regular cleaning of the equipment, facilities, hygiene in the production process. 8 As starch with acid, and thus all the slurry tank (or tank) should be embalmed. 9 During the drying process, all inflammable source should be controlled and eliminated, such as smoking, welding, static sparks, etc., to prevent dust explosion and ensure production safety. Fourth, technological features 1 The production process flow is the combination of plane and vertical process, with small area, less pipe, less use of the pump, reduce investment, reduce energy consumption. 2 The production process is short, it takes only 10mins from the batch to produce the finished products. 3 Continuous production process, and high efficiency equipment. 4 In addition to drying processes, the whole production process were carried out under normal temperature and pressure conditions. 5 Through new technologies, we could further improve the technology level of production, and give full play of the equipment and reduce the number of equipment units to reduce energy consumption and production costs, increase production, improve product quality. 9 The main technical parameters 1washing with water 1: 4. 2 disintegration with water 1: 1. 3 the first disintegration of the raw stock through the sieve of 8.0mm or so. 4 the second disintegration of the raw stock through the sieve of 1.2 1.4mm. 5 potato starch residue (dry basis) at 3% by screening and washing. 6 the first separator into starch concentration of 5 6Bé, the out starch concentration of 12 15Bé. 7 the second separator into the starch concentration of 8 10Bé, the starch concentration of 20 22Bé. The starch concentration 4-6 Bé into the dejuice Station, the out starch concentration 16-18 Bé, the starch concentration 6-8 Bé swirling into the refining station, the out starch concentration of 22 Bé. 8the latex concentration into the scraper centrifuge was 20 22B é. 9 After dehydration, the wet starch moisture content of less than 38%. 10 Finished starch product containing about 13.5% water. 10 key technical indicators 1 commodity starch recovery rate> 96% 2 Water consumption <30m3 / t starch 3 coal consumption (standard coal) <0.1t / t starch 4 power consumption <180kWh / t starch 5 Special first standard