What is the safe temperature for storing corn in silos?

The temperature of the silo is not higher than the outdoor temperature of 5 degrees, which is a safe temperature, but long-term storage requires frequent ventilation in sunny days, and it is safe for 3-4 times a week!

The following is the quality management system of corn and wheat silos.

In order to strengthen the quality management of corn and wheat silos, the following systems are formulated:

1. Feeding and storage: Before the corn is put into storage, the warehouse keeper of raw materials must designate stevedores (see the attachment for the management system of stevedores) to clean the underground pits to check whether there is water or other sundries and whether the elevator is flooded.

2. When discharging the silo, you must first discharge from the central part of the silo, and then discharge from the non-central part until the central part stops discharging. When discharging from the non-central opening, the central control personnel should arrange and adjust the discharge port of the silo in time according to the thickness of the scraper material layer; And inform the warehouse top staff to observe the situation of corn, wheat and sorghum entering the warehouse to avoid damaging the scraper under the silo due to improper adjustment of the discharge port.

Step 3 clear

3. 1 Manual removal

3. 1. 1 Silos must be cleaned by three or more people and wear safety belts; The warehousing personnel should contact the central control in advance, and put a warning sign "No operation is allowed when someone is warehousing" on the silo button of the central control panel. The warehousing personnel should be equipped with walkie-talkies or mobile phones to contact the central control at any time.

3. 1.2 When the warehouse cleaning personnel enter the warehouse to clean the silo, they shall not open any access equipment under the condition that the following material openings are not exposed; When the lower discharge port is exposed and people can stand safely, you can open the scraper below the discharge port, but there should be a screen at the discharge port, and people are not allowed to step on the screen. When personnel enter the warehouse, the upper feeding equipment shall not be opened under any circumstances. 3. 1.3 When using the cleaning drill, the keeper must pay attention to safety.

3. 1.4 After the warehouse clearance, the corn, wheat and sorghum stuck on the warehouse wall should be cleaned in time to avoid corrosion of the warehouse wall due to the condensation of corn, wheat and sorghum.

3. 1.5 After the silo is cleaned, the fan should be turned on for ventilation in sunny and dry weather, and fumigation and disinfestation should be carried out according to the requirements of the quality control department or the actual situation. 3.2 Clean the machine gap

3.2. 1 The cleaning personnel should contact the central control room to ensure that the discharging scraper stops running. 3.2.2 Cleaning personnel enter the gas cylinder warehouse to check the actual situation.

3.2.3 If redundant materials are found at the initial position of the cleaning machine, they should be cleaned by manual excavation.

3.2.4 Before excavation, the central control room shall be informed to select the bunker and use the scraper to transport the materials. After digging the material into the grille, tidy up the power cord, notify the controller and start the cleaner.

3.2.5 After cleaning, when closing the cleaning machine, stop the cleaning machine in the same direction or the opposite direction of the grille as far as possible, and the included angle between the cleaning machine and the grille should be as small as possible to avoid digging or digging less when cleaning the silo next time. 3.2.6 After the cleaning machine stops, people will carry out the final cleaning work. After cleaning, notify the central control room to close the scraper. If it exists.

During internal maintenance, it is forbidden to carry out open fire operation in the silo to prevent dust explosion. 4. Silo fumigation

(1) When the silo was filled with 3,000 tons of corn, wheat and sorghum, the upper part was eaten by insects, which reached the food standard of serious moth-eaten. It must be fumigated.

⑵ When fumigating the silo, the upper vent and entrance must be sealed, and two people must work at the same time when dosing, and corn, wheat and sorghum should be stopped.

(3) After fumigation in the silo, the drug residues must be removed from the silo immediately, and then ventilated to reduce the drug residues. 5. When the local temperature of the corn silo is 6 degrees higher than the outdoor temperature and the humidity is higher than that outside the silo, the silo must be ventilated, and automatic ventilation or manual ventilation can be selected; The production department is responsible for the specific operation, which is recorded and checked by the quality controller. 6, raw material warehouse controller and quality controller regularly check the corn warehouse to see if there is water leakage and equipment leakage of corn, and so on and so forth. 7. The keeper of the raw material warehouse shall count the number of corn in the warehouse according to the warehouse number every day, and let the personnel check the silo, estimate the number of corn in the silo, and notify the quality controller in time.

8, according to the requirements of the quality supervision department, regular disinfection and cleaning of corn silos. The warehouse department must record the disinfectant and time used in the disinfection process in detail and report it to the Quality Control Department for approval.

9, production and storage silo cleaning and disinfection records must be in duplicate (one for quality control and production) and do a good job of filing.

10. After cleaning and disinfection, the interval between re-importing corn is 3-7 days according to the type of liquid medicine used, and it must be ventilated before importing.

1 1. The quality controller shall strictly supervise the cleaning and disinfection of the silo and report any abnormal situation to the manager of the quality control department.