Some food factories and workshops must also have this health headache dead end - the ceiling filling on the inner wall of large storage tanks is not only difficult to see directly, but also not convenient for manual operation to carry out disinfection and sterilization operations.

Many food factories choose chlorine dioxide spray to disinfect the body of this large tank, but this is a very technical challenge: it is not that the droplets are too big, and they fall into the bottom before they float, causing other chemical reactions of high concentration disinfectant. If another residue is not thoroughly cleaned, it may affect the taste or cause foreign matter contamination; In addition, the fog droplets are too small and evaporate with insufficient force as soon as they are sprayed, without staying on the top inner wall for enough time, which still does not have enough dosage effect for disinfection.

1、 The pain of heavy fog drops: it's not rain and dew, it's rainstorm pear blossom needle

This is easy to understand using common phenomena in daily life. The watering can used at home sprays water droplets like raindrops, which can bounce off the leaves and not fall steadily into the gaps between the roots and stems. Such heavy fog droplets are actually a manifestation of "too heavy" atomization in food factory storage tanks.

If the diameter of atomized particles is greater than 100 microns, when they gather together, they will not be in the form of mist, but will form raindrops. The gravity of the Earth will directly fall vertically to the ground, and if it accumulates too much, it can easily cause pollution at the bottom of the storage tank or the generation of by-products due to excessive disinfection.

This will lead to two consequences:

A large amount of disinfectant died before it could take effect, resulting in insufficient actual effective concentration in the headspace and greatly reducing the sterilization effect.

This will generate two issues:

1. Insufficient concentration: A large amount of disinfectant has not been in contact with the inner wall for enough time, and the concentration in the headspace is insufficient, which will directly reduce the effectiveness of sterilization.

2. Pollution risk: If there are other processing materials stored at the bottom of the tank, these disinfectants are a direct source of pollution. Before food hygiene and safety production has entered the process, there is already a possibility of certain raw materials being scrapped.

2、 Don't let the fog droplets deviate, three techniques for precise control

What is the ideal atomization state to ensure sufficient filling in the headspace during atomization? Three tricks to solve this problem.

The first trick: Pressure is king, don't blindly believe in a fixed price nozzle.

Many teachers think that nozzle is the key to spray. However, this still exists, and the atomization state will vary greatly depending on the pressure. Although there are requirements for nozzles, it is also important to consider their effectiveness and equip them with pressure adjustable atomization devices. Test the atomization form under the condition of clear water, and pay attention to the presentation effect of atomization to test the working status of the equipment.

Many new devices are equipped with regulating valves or pressure gauges, which are sufficient to control the fine adjustment of atomized particles. If there is liquid accumulation at the bottom of the tank, it indicates that the pressure needs to be increased as it will disperse the water droplets into finer particles. Of course, frequent atomization operations can also cause moisture above the nozzle, and reducing pressure can reduce the retention of atomized water droplets.

Second move: Cleverly use pulses to leave some time for the droplets.

Please refer to sterilization in sterile room, and pay attention not to exhaust immediately after spray. Generally speaking, the spray from the atomized nozzle also has an intermittent time. In order to prevent excessive droplets from causing local saturation, it can be changed to pulse spraying - spraying for 30 seconds and stopping for 1-2 minutes.

The third trick: Only by testing it out can it be true

It is easy for people to have deviations in their visual perception. It is recommended to use a laser dust analyzer or a specialized droplet size test card, and then use the exhaust pipe to conduct sampling inspection, which can achieve a certain degree of rigor.

Check in the middle of the tank: roughly check whether the atomized particles are in the range of 20-50 μ m.

At the exhaust port inspection: Be cautious of encountering a large number of fog droplets, adjust the particle size to be too small or the exhaust negative pressure to achieve a reasonable state.

Place a glass slide at the bottom of the jar: After disinfection, observe the droplet traces by using the glass slide. If a large water stain appears, reduce the size of the fog droplets; If the atomization marks are difficult to see, adjust the mist droplets or increase the spraying amount directly.

The food production process, even a small hidden space, is enough to trigger a series of hidden dangers. Not pursuing perfection, but also ensuring the necessary requirements for safe production. Choosing chlorine dioxide disinfection, a unique biofilm inactivation method, for the overhead space of large storage tanks can indeed thoroughly remove microorganisms and even stubborn substances, ensuring the safety and thoroughness of the disinfection effect.

Xiuba chlorine dioxide disinfectant, as an A1 food grade disinfectant recognized by the WHO organization, not only has comprehensive third-party testing and enterprise qualifications, but also has its own research and development team to support technological updates, ensuring stable and safe effectiveness. In addition, the Xiuba team has nearly 30 years of experience in solving disinfection pain points. Sales will directly focus on disinfection issues from the beginning of consultation and provide meticulous services throughout the entire process. Immediate response and resolution are necessary to trust the transaction and deliver the results.

Tip: If your tank exhaust system cannot be turned off, you can consider temporarily installing blind plates or closing valves during disinfection. After disinfection is complete, let it sit for a period of time before opening it again to avoid the wind blowing away your silver directly.