Analysis on the cause of the defect point of the wool production and the solution measures

1. single chip too much
(1) causes: before the carbonization, the wool was loose, too much wool, too much acid, too low acid concentration, poor acid pickling, insufficient baking temperature or pressure, and poor dust removal effect.
(2) measures: strengthening opening; regulating the wool feeding quantity; improving and maintaining the acid concentration; adjust the baking temperature and pressure roller pressure, improve the efficiency of dust removal etc..
2. acidification rate
(1) the reasons are as follows: the circulation of wash acid bath is unfavorable, the concentration of alkaline solution in the neutralization tank is insufficient and the time of impregnation is too short.
(2) the solution: increase the circulation of wash acid bath, increase and maintain the concentration of alkaline solution in the neutralization tank, adjust the leaching time and increase the degree of neutralization.
3. wool felt and
(1) cause: before drying, the hair feeding machine is overturned in the machine; the wool in the dust collector is too much, and the dust collector.
(2) solution: adjust the feed Jijun gross rake gauge; inspection and adjustment of cleaner process parameters to the normal configuration.
4. back tide does not meet the requirements
(1) cause: bad press state; dry feed too large or feed, people are not uniform; drying temperature is too low, drying time is short, circulation air volume is insufficient, etc.
(2) solutions: check and adjust the roll state, ensure the moisture content after rolling to meet the requirements, control the drying feed and gross thickness and evenness, check and adjust the speed of the wool curtain, improve the drying temperature and circulation volume.