Focus on the heat cooling process to ensure the quality of the particulate feed

LIMA Fish Feed Machine,Chicken Feed Machine

The particulate feed cooling section must ensure that the water content of the particulate feed is compliant with the safety storage requireme during the production process. How to effectively control the moisture content of the particulate feed, in addition to the cooling process, there are other factors that affect the moisture content of the particles. In the particle cooling process, it is essential to select high efficiency cooling equipment and a reasonable wind network. Further, the amount of steam quality and the amount of steam in the granulation of raw material and the granulation must be strictly controlled so that the water content of the finished particle feed content meets the quality indicator. In terms of how the cooling process uses the equipment and excludes the main factors affecting the moisture of the particles, the author is described below, which is only for the reference of the particle feed manufacturer. During the granulation, the material must be transferred into high temperature steam, and the material is strongly extruded by the press mold, so that the particle out of the mold temperature can reach 85 ¡ã C, and the water is about 15%. In this case, the particles are easily broken, and mildew is prone to storage. Therefore, the high temperature after the granulation must be subjected to wet heat transfer by cooling treatment, and the surface water and heat added to the steam are obtained in time, so that the particles are cooled to not above the room temperature 5 ¡ã C, and moisture is reduced to 12% -15%. Around, this can increase the hardness of the particles, and it is also easy to transport, store, and improve the quality of the finished particles. 1. Select the appropriate cooler to configure a reasonable wind network: The currently selected counterculifer currently in the feed mill is the advanced cooling equipment used in the 1990s. After the inverse current cooler is cooled, the particle temperature is lower than the room temperature 3-5 ¡ã C, and the precipitation rate is higher than 3.5%. The particles are cooled in the table, such as one, no cracks, skull, easy to sell, transport, and store. The cooler is in a relatively flow form using a cooling routine and a stream, i.e., the environmental cold air passes through the particles layer vertically from the bottom, first contacts the cold particles, and the hot air step by step by step is in contact with the hot particles. In contrast to the stream direction in the routing direction, the particles are smoothly cooled, and the general vertical cooler can be avoided directly in contact with the high temperature particles, thereby caught the particles of the particles. Since the cold air enters the cooler from its bottom, the air intake area is large, the cold wind utilization is high, so the cooling effect is remarkable, and the energy consumption is low, the operation is simple, and the automation is high. The cooling wind network is an indispensable auxiliary system for cooling equipment, and its structure is reasonable than the impact of cooling equipment. There is a cooling duct in the feed plant, and there is a cooling wind network design or unreasonable installation of cooling wind networks. Therefore, when using a countercurrent cooler, it is necessary to design an effective wind network system in accordance with the relevant data provided in the device manual. The wind network system is an indispensable device that provides cooling wind. It is mainly composed of dust collectors, turfractions, wind turbines and wind es. After the cooling wind network is configured, in order to ensure good use, pay attention to the following poi: (1) Shorten as much as possible, reduce the length of the wind network system, reduce the number of change heads, prevent the powder from depositing in the pipe, avoiding the pressure loss The air volume is reduced, affecting the cooling effect. (2) as much as possibleShorten the length of the horizontal duct to prevent condensate from being produced. Especially in winter, the insulation material can be packed in the appropriate position, which can reduce the condensed water, and the powder blockage of the powder produced. (3) Reasonable selection of wind speed and adjust the wind speed. The air volume adjustment device should be contained on the pipe, which can adjust the air volume, so that the steam is out of the condensation. (4) It is reasonable to design the exhaust diameter to make the e have sufficient wind speed. It should generally be ensured that the wind speed has a wind speed of 13-16 m / s, and if less than 12m / s, the dust in the duct is easy to accumulate in the e, and condensed water is also prone to condensed water. (5) The entire wind network system should be inhaled, ie, in a negative pressure state, after the fan is placed in the dust collector, so the fan blade does not adsorb the moist dust, guarantee the working environment of the fan, avoiding the vibration of the fan, increase noise. (6) A t special dust collectors and cooling blowers, when designing and installing the duct, it should be considered for easy cleaning. In order to ensure the quality of the particulate feed, except for the appropriate cooler, it is necessary to strictly control the steam quality and steam add amount during granulation. 2. Control the moisture: At prnt, in the granule feed processing process, the cooler is used to reduce the moisture and heat added by the finished particle material due to the high temperature steam regulation of high temperature steam regulation during granulation, so that the moisture of the finished particles is returned to The original moisture content before grain. Particle feed is made of a scientific formula with a variety of raw materials, and the original moisture of raw materials is undoubtedly reflected in the finished particles. When the raw material moisture exceeds the standard, the general feed mill processing process, if it is not used to dry after cooling, it is not possible to solve the problem of the moisture of finished particles that caused by the material moisture exceeding the standard. To ensure that the moisture content of the particles reaches a mass index, the moisture of the raw material is first controlled. Maize has a large proportion in the mixing feed, and its standard moisture is also higher than the standard moisture of the feed, so it is necessary to focus on controlling the water content of corn in the raw material. Therefore, when the feed mill is organized, in addition to detecting the main nutrition indicators, it should pay attention to the detection of water content. If the material moisture exceeds the standard, other methods must be treated before granulation, so that the moisture content reaches the quality requireme. Only strictly controls the moisture content of various raw materials can finally ensure that finished particles reach the quality indicators of safe storage. 3. Control steam quality: The quality of steam directly affects the moisture content of the finished product, but it is neglected by many feed mills. The granulation is suitable for dry saturation steam, and should not have condensed water. Suitable vapor pressure is typically 0.2-0.4 MPa. The steam pressure remains substantially stable, and the pressure fluctuation is generally not greater than 0.15 MPa. In order to ensure that there is no condensate into the tuning and stamping system, the boiler room should be as close as possible to the main workshop, and the boiler room and the main workshop are set up. The steam is used to provide an automatic hydrophobic device in the delivery e and the bottom of the vapor cylinder in the conveying tank. The main workshop softening separator is not too far apart from the granulator, and the water returning pipe should be placed vertically, and the underwarter andThe discharge shut-off valve can effectively exclude condensed water.The impact of steam quality on particle moisture is large, meet the requireme of the steam system, can play a half-time effect.In short, the feed factory should continue to explore summary experience in the production process.Only reasonable and effectively controlling the quality of steam can be controlled to improve the quality of finished particles.

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