1、储罐清洗前需打开储罐通风。

1. It is necessary to open the storage tank before cleaning.

外加剂一般都要求密闭储存，存放于阴凉通风处，避免雨水污染或阳光暴晒。长期密闭存储极易导致储罐内氧气不足。外加剂特别是萘系磺酸盐系列外加剂产品，由于生产过程中本身要使用甲醛、浓硫酸、工业萘等有毒化工原料，夏天温度高时，在储罐内也会释放大量甲醛等有毒气体。所以商混站在进行外加剂储罐之前，需要事先打开储罐进行必要的通风。

Admixtures are generally required to be kept in closed storage and stored in a cool and ventilated place to avoid rainwater pollution or sun exposure. Long term closed storage is very easy to lead to insufficient oxygen in the tank.  Admixtures, especially naphthalene sulfonate series admixture products, because the production process itself uses formaldehyde, sulfuric acid, industrial naphthalene and other toxic chemical raw materials, in summer, when the temperature is high, in the storage tank will also release a lot of toxic gases such as formaldehyde. So before the commercial mixing station is carrying on the admixture tank, it is necessary to open the tank in advance for the necessary ventilation.

2、清洗储罐时需轮流作业。

2. When cleaning the tank, it is necessary to work in rotation.

外加剂储罐口径较小，工人在储罐内清理作业时，大强度的劳动强度会导致储罐内氧气不足。在进行储罐清理时，需要2-3名公司轮流作业清理，每10-15分钟轮换，避免单人作业。若条件允许，在外加剂储罐入口处放置一台电风扇，一方面可加速储罐内空气流动，也可以降低储罐内温度。

As the caliber of the admixture tank is small, the high intensity of labor intensity will lead to the lack of oxygen in the tank when the workers are cleaning the operation in the tank. In the process of tank cleaning, 2-3 companies are required to take turns to clean up and rotate every 10-15 minutes to avoid single work. If the conditions permit, an electric fan is placed at the entrance of the admixture tank. On the one hand, the air flow in the tank can be accelerated and the temperature in the tank can be reduced.

3、储罐清洗必须配备相应的防护措施。

3, it must be equipped with corresponding protective measures.

工人在进入储罐清理之前，必须配备安全绳、防护罩、雨靴等防护措施。外加剂本身属于化工品，本身对皮肤有一些伤害。工人在进入清理，若感到身体不适，应立即停止清理，以免发生意外。

The workers before entering the tank cleaning, must be equipped with safety rope, protective cover, boots and other protective measures. The admixture itself belongs to the chemical industry, and it has some harm to the skin itself. The workers are going to clean up, and if they feel ill, they should stop cleaning up immediately to avoid accidents.

4、储罐清洗外加剂企业应对商混站进行必要的提醒。

4, the admixture enterprises should make necessary reminding to the commercial and mixed stations.

外加剂企业在与搅拌站沟通外加剂使用注意事项时，需对商混站人员进行必要的外加剂安全培训，同时商混站在清理外加剂储罐前也可以向外加剂供货商咨询，并寻求必要的帮助，避免意外发生。

Admixture enterprises in the use of note and mixing station communication admixture, the mixing station personnel necessary additive safety training, at the same time mixing station in the cleaning tank before the admixture can be outside additive supplier consultation, and seek the necessary help to avoid accidents.