White Sesame Oil,Ground Sesame Seed Oil,White Sesame Seed Oil,A Grade Sesame Oil Chinese Seasoning (Shandong) Trading Co.,Ltd , https://www.zt-trading.com
(1) The particle size of the powder should have a certain proportion: the general livestock and poultry material is all passed through 8 mesh, and the 20 mesh sieve material is less than 30%. Ordinary fish feed 20 mesh all passed, 30 mesh sieve material less than 35%. For the shrimp feed, all 35 meshes were passed, and the 60 mesh sieve was less than 25%.
(2) The purpose of feed quenching and tempering: a. Improve production efficiency; b. Extend the service life of ring mold; c. Reduce energy cost; d. Paste starch, improve nutritional value.
(3) For every 15 °C increase in quenching and tempering temperature, the moisture content of the powder increases by 1%. The time for quenching and tempering of common livestock and poultry materials is 25 to 40 s, and the fish material is over 60 s.
(4) When producing high or high protein feed of milk powder, the temperature is controlled at 60-65 °C, and the moisture should be controlled at 13%-14% after quenching and tempering. When producing low-grade suckling pigs, the summer temperature is controlled at 70-82 °C, and the winter temperature is controlled at 70-74 °C. After quenching and tempering, the moisture should be controlled at 15%-16%. When producing ordinary pig and poultry materials, the temperature is controlled at 82-88 °C, and the moisture should be controlled at 16% to 17% after quenching and tempering. When producing dairy cows, the temperature is controlled at 60-62 °C, and the moisture should be controlled at 12%-13% after quenching and tempering.
1. Preparation before starting up First check the schedule of this shift, understand the work record of the previous shift, and check whether the distribution of pellets in the warehouse is consistent with the listing signal on the production plan and control panel. Then thoroughly clean the internals of the cooler, airlock, pipe and granulator (only clean the inside of the granulator before the night shift).
According to the production variety, the coarse granulator cutter is used to check or replace the grading screen surface specifications. If the crushed material is produced, the crusher fast and slow roller gap must be coarsely adjusted to produce a qualified product.
Check the guide knives, scrapers, press rolls, ring molds of the granulator, and the position of the guide knives. If the scraper is severely worn, the viscous feed will be produced, and the granulator will be easily blocked. If the press roll is severely worn, a small amount of variegated pellets will appear. If the ring mold is not machined with a high-speed gun, it should be ground for 30 minutes with a mixture of clear and fine sand before use. If it is a stainless steel ring mold processed with a high-speed gun, it can be used without grinding. However, when you first use it, you should add less steam and slow down the production speed. After running for 1h, you can complete the running-in period. If the ring mold is delayed due to the long time of use, the slow drilling machine can be used to re-expand the hole to prolong the service life. Next, adjust the gap between the granulator pressure roller and the ring die, let the ring die idling, and press the roller to stop when it is time to turn.
At this point, preparations before the start of construction are basically ready.
2, start the granulation system and maintain the good state of the zui this process improper operation will directly affect the production and product quality of the entire production shift.
In order to prevent the occurrence of blocking phenomenon, the relevant equipment is started from the back to the front according to the process flow. The starting sequence is as follows to start the main motor of the granulator, without adding steam, open the granulator bypass door, and let a little black granular material discharge to the ground. on. Then start the conditioner, let the small amount of powder that has just started to be discharged to the ground, to prevent the material from getting wet by the pressure roller; then start the feeder slowly, without steam, and use the dry powder to extrude the ring mold. The material is placed side by side on the ground, and after the extruded pellets are normal in color, the pellets are allowed to enter the cooler.
Add a small amount of steam, and at the same time accelerate the feeder, keep the granulator at 50% load, slowly feed the material available on the ground into the ring mold, and then increase the feeding speed to make the granulator full load. Running. Increase the amount of steam, wait for tens of seconds, the main motor current of the granulator will fall back, increase the feeding speed again, and let the granulator be fully loaded. Then increase the amount of steam, wait for tens of seconds, the main current of the granulator will fall back again and again, until steam is added, the main current of the granulator will not fall back. At this time, it indicates that the moisture of the powder has reached the size of Zui, granulation. The machine is fully loaded. Full load indicates that the main current of the granulator reaches 90% of the rated current.
Open the artificial feeding door of the granulator, grab the powder after quenching and tempering by hand, feel hot, then loosen, the material becomes agglomerate, gently spread and then naturally spread. If the material is too thick, it should be reduced. The amount of steam. Conversely, if the material is too loose, the amount of steam is increased. Use a spoon to take some freshly prepared hot material from the granulator blanking tube, and squeeze it between the mother finger and the index finger to make it flattened without loosening.
Observe the granulator current meter. If the current meter pointer is no longer swinging to the left and right, it means that the whole granulation system is in a stable state.
The environment around the granulator was cleaned for 10 minutes to keep it clean.
3, check the production process and record the production parameters to check the temperature of the pellets; take the pellets for durability test, check the powder content of the finished product; check the gap of the crushing roller; check the return pipe of the centrifugal dust collector and the back of the graded sieve Whether the material tube is blocked. The above work is performed every 1h.
Record various production parameters such as production time, material temperature, durability, powder content, production variety, production tonnage, efficiency, etc. Pay attention to the control panel, coordinate the packaging and granulation, so as to return to the front and back bags in time, find all kinds of problems in time, and deal with them in time to reduce losses. For example, timely check whether the powder content in the material is too high, whether there is a small piece in the material, and whether the material temperature exceeds the standard.
4. The sequence of shutdown is the opposite of the startup, and the related equipment is shut down in order from the front to the back according to the process flow. When the low level positioner of the grain storage bin shows no material, open the artificial feeding door of the granulator and observe the flow condition of the inlet. When the flow is significantly reduced, the cooler is manually discharged, and the flow rate of the machine is increased, so that the flow rate of the granulator inlet is increased to ensure the granulation quality. At this moment, it is necessary to pay attention to whether the return pipe is blocked. If the return pipe is blocked, the cooler is manually discharged and the machine is turned back. If the return pipe is not blocked, wait for the feed inlet to be observed.
After the material in the return pipe is opened, wait a few minutes, then release the material in the cooler, so that there is only a small amount of recycled material in the return pipe, which can reduce the pollution to the next production.
Stop the steam supply and stop the cooler discharge, close the feeder, conditioner, and then clean the ring mold with clear or puffed soybeans, then turn off the main motor of the granulator. Check the granulation system process: check whether there are accumulated materials such as cooler, crusher, hoist, return pipe, centrifugal separator, grading sieve, etc. After the zui, turn off the total power of the granulation system and clean it up.
In short, the quality of the product pellets and the level of production are closely related to the personal qualities of the granulators. They must produce qualified pellets according to changes in ambient temperature and humidity, changes in moisture content, particle size, formulation adjustment, equipment wear and customer specific requirements. To produce high-quality products, granulators must have more comprehensive knowledge, rich experience, and a strong sense of responsibility. To overcome various difficulties, we can produce high-quality and efficient products.
Operating points of the granulator:
(1) The particle size of the powder should have a certain proportion: the general livestock and poultry material is all passed through 8 mesh, and the 20 mesh sieve material is less than 30%. Ordinary fish feed 20 mesh all passed, 30 mesh sieve material less than 35%. For the shrimp feed, all 35 meshes were passed, and the 60 mesh sieve was less than 25%.
(2) The purpose of feed quenching and tempering: a. Improve production efficiency; b. Extend the service life of ring mold; c. Reduce energy cost; d. Paste starch, improve nutritional value.
(3) For every 15 °C increase in quenching and tempering temperature, the moisture content of the powder increases by 1%. The time for quenching and tempering of common livestock and poultry materials is 25 to 40 s, and the fish material is over 60 s.
(4) When producing high or high protein feed of milk powder, the temperature is controlled at 60-65 °C, and the moisture should be controlled at 13%-14% after quenching and tempering. When producing low-grade suckling pigs, the summer temperature is controlled at 70-82 °C, and the winter temperature is controlled at 70-74 °C. After quenching and tempering, the moisture should be controlled at 15%-16%. When producing ordinary pig and poultry materials, the temperature is controlled at 82-88 °C, and the moisture should be controlled at 16% to 17% after quenching and tempering. When producing dairy cows, the temperature is controlled at 60-62 °C, and the moisture should be controlled at 12%-13% after quenching and tempering.
1. Preparation before starting up First check the schedule of this shift, understand the work record of the previous shift, and check whether the distribution of pellets in the warehouse is consistent with the listing signal on the production plan and control panel. Then thoroughly clean the internals of the cooler, airlock, pipe and granulator (only clean the inside of the granulator before the night shift).
According to the production variety, the coarse granulator cutter is used to check or replace the grading screen surface specifications. If the crushed material is produced, the crusher fast and slow roller gap must be coarsely adjusted to produce a qualified product.
Check the guide knives, scrapers, press rolls, ring molds of the granulator, and the position of the guide knives. If the scraper is severely worn, the viscous feed will be produced, and the granulator will be easily blocked. If the press roll is severely worn, a small amount of variegated pellets will appear. If the ring mold is not machined with a high-speed gun, it should be ground for 30 minutes with a mixture of clear and fine sand before use. If it is a stainless steel ring mold processed with a high-speed gun, it can be used without grinding. However, when you first use it, you should add less steam and slow down the production speed. After running for 1h, you can complete the running-in period. If the ring mold is delayed due to the long time of use, the slow drilling machine can be used to re-expand the hole to prolong the service life. Next, adjust the gap between the granulator pressure roller and the ring die, let the ring die idling, and press the roller to stop when it is time to turn.
At this point, preparations before the start of construction are basically ready.
2, start the granulation system and maintain the good state of the zui this process improper operation will directly affect the production and product quality of the entire production shift.
In order to prevent the occurrence of blocking phenomenon, the relevant equipment is started from the back to the front according to the process flow. The starting sequence is as follows to start the main motor of the granulator, without adding steam, open the granulator bypass door, and let a little black granular material discharge to the ground. on. Then start the conditioner, let the small amount of powder that has just started to be discharged to the ground, to prevent the material from getting wet by the pressure roller; then start the feeder slowly, without steam, and use the dry powder to extrude the ring mold. The material is placed side by side on the ground, and after the extruded pellets are normal in color, the pellets are allowed to enter the cooler.
Add a small amount of steam, and at the same time accelerate the feeder, keep the granulator at 50% load, slowly feed the material available on the ground into the ring mold, and then increase the feeding speed to make the granulator full load. Running. Increase the amount of steam, wait for tens of seconds, the main motor current of the granulator will fall back, increase the feeding speed again, and let the granulator be fully loaded. Then increase the amount of steam, wait for tens of seconds, the main current of the granulator will fall back again and again, until steam is added, the main current of the granulator will not fall back. At this time, it indicates that the moisture of the powder has reached the size of Zui, granulation. The machine is fully loaded. Full load indicates that the main current of the granulator reaches 90% of the rated current.
Open the artificial feeding door of the granulator, grab the powder after quenching and tempering by hand, feel hot, then loosen, the material becomes agglomerate, gently spread and then naturally spread. If the material is too thick, it should be reduced. The amount of steam. Conversely, if the material is too loose, the amount of steam is increased. Use a spoon to take some freshly prepared hot material from the granulator blanking tube, and squeeze it between the mother finger and the index finger to make it flattened without loosening.
Observe the granulator current meter. If the current meter pointer is no longer swinging to the left and right, it means that the whole granulation system is in a stable state.
The environment around the granulator was cleaned for 10 minutes to keep it clean.
3, check the production process and record the production parameters to check the temperature of the pellets; take the pellets for durability test, check the powder content of the finished product; check the gap of the crushing roller; check the return pipe of the centrifugal dust collector and the back of the graded sieve Whether the material tube is blocked. The above work is performed every 1h.
Record various production parameters such as production time, material temperature, durability, powder content, production variety, production tonnage, efficiency, etc. Pay attention to the control panel, coordinate the packaging and granulation, so as to return to the front and back bags in time, find all kinds of problems in time, and deal with them in time to reduce losses. For example, timely check whether the powder content in the material is too high, whether there is a small piece in the material, and whether the material temperature exceeds the standard.
4. The sequence of shutdown is the opposite of the startup, and the related equipment is shut down in order from the front to the back according to the process flow. When the low level positioner of the grain storage bin shows no material, open the artificial feeding door of the granulator and observe the flow condition of the inlet. When the flow is significantly reduced, the cooler is manually discharged, and the flow rate of the machine is increased, so that the flow rate of the granulator inlet is increased to ensure the granulation quality. At this moment, it is necessary to pay attention to whether the return pipe is blocked. If the return pipe is blocked, the cooler is manually discharged and the machine is turned back. If the return pipe is not blocked, wait for the feed inlet to be observed.
After the material in the return pipe is opened, wait a few minutes, then release the material in the cooler, so that there is only a small amount of recycled material in the return pipe, which can reduce the pollution to the next production.
Stop the steam supply and stop the cooler discharge, close the feeder, conditioner, and then clean the ring mold with clear or puffed soybeans, then turn off the main motor of the granulator. Check the granulation system process: check whether there are accumulated materials such as cooler, crusher, hoist, return pipe, centrifugal separator, grading sieve, etc. After the zui, turn off the total power of the granulation system and clean it up.
In short, the quality of the product pellets and the level of production are closely related to the personal qualities of the granulators. They must produce qualified pellets according to changes in ambient temperature and humidity, changes in moisture content, particle size, formulation adjustment, equipment wear and customer specific requirements. To produce high-quality products, granulators must have more comprehensive knowledge, rich experience, and a strong sense of responsibility. To overcome various difficulties, we can produce high-quality and efficient products.
Several points to be aware of when operating the granulator
Operating points of the granulator: