One of the methods used to improve particle quality
One of the methods to improve the quality of the particles, water regulation, First, improve the moisture content of 1, directly add water (raw water or cooked water) It is not feasible to add water directly to the mixer to increase the moisture content of the finished product. (1) Although solid fungicides are used in feed production at the same time, they may be mildewed due to their uneven distribution and detachment from moisture. (2) Direct water addition, the water recovery rate is only about 30%. To add 1% water to the finished product, 30-40 kg of water is needed and the feed becomes too moist. The ability of the over-wet powder to absorb steam is reduced, which may cause the quenching and tempering temperature to drop, which is not conducive to gelatinization. (3) If the amount of water added is too high, the water content of the powder is too high, and the ring mold may be clogged and the pressure roller may be slipped. The energy required for granulation is increased, and the yield is lowered. (4) The water directly added is free water, and free water is the main cause of mildew and moisture migration of feed. 2, steam regulation water It is not feasible to adjust the moisture of the finished feed by steam. (1) Adjusting the moisture of the pellets by steam can be achieved by increasing the boiler water level and reducing the sensitivity of the water delivery valve. (2) When the water content is increased by steam, the water in the steam is increased, the steam temperature is naturally lowered, and the steam quality is poor, which affects the quality of the quenching and the degree of starch gelatinization. (3) Water control is limited, and it is difficult to increase by 1%. How much water is added is not easy to control. (4) Most of the water added to the conditioner is free water, which tends to cause the moisture of the feed to migrate to the surface of the feed pellets. (5) The moisture distribution may be uneven and mildew. (6) The water retention time is short, and as the storage time is extended, the water evaporation loss is large. 3, shorten the cooling time (1) The cooling time is short, the particle temperature is high, the softening is easy, the powdering rate is high, the durability is poor, and the mold is easy to change. (2) The water retention time is short, and the evaporation loss is large as the storage time is extended. (3) It is easy to appear sugar core particles and increase the risk of mold mildew. (4) When the feed is packaged, the temperature is high, and moisture migration occurs during storage, and mildew occurs. 4, the direct consequences of blindly adding water (1) less water increase, water activity increased more (2) The risk of feed mildew is (3) The safety of feed storage period becomes uncontrollable Therefore, we must not only add water, but also keep it, but also minimize the increase in water activity caused by adding water, reduce the risk of mildew! Second, it is recommended to use liquid feed mold agent for safe moisture control 1. Issues to be concerned (1) Main components: propionic acid, ammonium propionate and water emulsifier (storage safety and moisture enhancement) Most of the liquid feed antifungal agents currently on the market are propionic acid and ammonium propionate as active ingredients. Propionate (ammonium propionate, sodium propionate, calcium propionate) does not have a direct antifungal agent and must be dissociated into free propionic acid to exert anti-mold effects. Compared with calcium propionate and sodium propionate, ammonium propionate has a better dissociation effect and can be rapidly decomposed in the case of insufficient propionic acid content to achieve the propionic acid concentration required for mildew prevention. (2) The choice of moisture emulsifier varies from manufacturer to manufacturer. The main purpose is to convert the free water to be added into bound water, so as to increase the moisture without increasing the risk of mold. (3) The water emulsifier also has an osmotic effect, which can penetrate through the micropores of the material matrix to lock the moisture of the feed. 2, volatility (shelf weight loss during storage period) Among the liquid feed anti-fungal products, the volatility of the anti-mold agent will be considered in the excellent products, the liquid anti-mold agent system should be stable, the high-temperature and cooling process can be resisted when the feed is prepared, and the amount of the finished product is sufficient. The anti-fungal agent also ensures the migration and evaporation of moisture during the storage period of the feed and reduces the weight loss. 3, one of the key problems in the use of liquid feed mold agent, spray equipment, Therefore, we must pay attention to the following problems of equipment: (1) Accuracy of spray equipment! (2) Atomization of spray equipment! (3) Safety of spray equipment! (4) Service of spray equipment! 4, liquid mold agent use case analysis (1) The use of liquid feed mold agent moisture test results in a feed mill (2) Test results of the use of liquid feed mold agent in a feed mill Aluminum Sheet Roll,Aluminium Slitting Coil,Aluminum Slitting Coil,Aluminum Rolled Coil Zhengzhou Yearshine Industry Co., Ltd , https://www.zzyscorp.com