The products are produced in strict accordance with the requirements of the ISo9001 quality management system, and a 7X24-hour professional laboratory takes turns to sample and test each batch of products to ensure the quality of the products shipped.

The company has four production lines, including ring roller mills, vertical mills, and Raymond mills, which are currently the largest domestic production equipment, with an annual output of 300,000 tons of calcium hydroxide and calcium oxide products.

The company has a dedicated transportation department to provide customers with transportation and loading and unloading services. There are 25 flatbed trucks and tank trucks in total, which can meet the needs of different packaging and transportation. Unified management and unified dispatch of vehicles and drivers can ensure timely and safe delivery of goods.

The raw materials for production are provided by a wholly-owned subsidiary (Jiande Rongguang Mining Co., Ltd.). The ore quality is high and the supply is stable.

Objective: a puzzling condition requiring treatment is that the teeth have persistent transparent or reddish exudate accompanied by large apical radiolucency.

Fish pond disinfection is a very important work for us in fish farming. Only reasonable disinfection before and during fish farming can better prevent the occurrence of diseases and improve the efficiency of farming. How to disinfect fish ponds? What are the precautions in disinfection? Today, we will introduce the methods and precautions for fish pond disinfection.

Calcium hydroxide plays an important role in all kinds of synthesis. By using its characteristics, it can give full play to its advantages in various fields. It is one of the chemicals in the disinfection work. What is its disinfection effect reflected in? What are the requirements for storage methods?

1. Hydrophobicity The surface of active calcium carbonate is coated with organic active agent, which has strong hydrophobic properties, which is a significant difference between active calcium and inactive products. The identification method is also relatively simple: take a small amount of product and place it in clean water. After a certain period of stirring, most of the product will be suspended on the surface of the water. If the water is clear and not turbid, it is activated calcium; if all or most of the product sinks into the water If the water becomes turbid, it is an inactive product. 2. Liquidity Because the surface of activated calcium product is coated with organic active agent molecules with lower surface tension, its specific surface energy is lower than that of non-activated products, the viscosity resistance between particles is reduced, and the flow performance of particles is improved, so the powder has a similar liquid The fluidity of inactive products is significantly poorer. Attention should be paid to the comparison under the same conditions of temperature, humidity and product moisture. 3. Dispersibility The dispersion difference can be seen from the good flow properties of the active product. Due to the good dispersion, the active calcium product exhibits good compatibility and dispersibility with the base material during the application process. The penetrating ability of the particles is also strong, and it is easy to form dust. The products packed in ordinary woven bags have a large amount of dust during the handling and use process. 4. Different particle size As the surface active agent of active calcium product reduces the surface energy of the particles, the agglomeration and binding force of the particles is weakened, and the particle size of the particles will be significantly reduced. Scanning electron microscopy can clearly distinguish between active calcium and inactive calcium products. 5. Different oil absorption values The particle size of the active calcium product is reduced, so that the void ratio between the particles is reduced, and the microscopic surface of the particles becomes smooth and flat. Therefore, when the oil absorption value of the product is measured, the active calcium product is lower than the inactive product. 6. The content of calcium carbonate is different The general organic active agent content in active calcium products is 1.0-5.0, so its calcium carbonate content is 1-5 lower than inactive products. The smaller the particle size of active calcium products (such as nano calcium carbonate), the higher the surfactant content, the lower the calcium carbonate content.

Calcium hydroxide also plays a big role in our common construction. Adding it to cement concrete can effectively improve the performance of all aspects. It has many positive effects on concrete when used well. So, what are the specific effects of calcium hydroxide on concrete? 1. Calcium hydroxide can improve the long-term stability of concrete Part of the alkaline environment in the cement stone pore solution comes from the hydroxides of alkali metals (such as K, Na, etc.) in the pore solution, but more comes from the presence of calcium hydroxide, Ca2+ and OH- in the pore solution. It ensures the continuous formation and stable existence of various hydration products, and provides the necessary media conditions for their mutual transformation. For example, when the concentration of lime in the solution is high, the hydration products mainly exist in the form of type I CSH gel. When the concentration of lime in the solution becomes lower, the type I CSH gel will be converted into type II CSH gel, etc. It can be seen that the presence of calcium hydroxide solution and calcium hydroxide crystals in cement stone is the basis for cement concrete to have certain mechanical strength and durability. 2. Calcium hydroxide can increase the adhesion performance of concrete The fineness of calcium hydroxide has a certain influence on the working performance of concrete, and the slump becomes larger as the fineness of the mixed stone powder decreases. This situation can be analyzed from two aspects. The activity of calcium hydroxide is compared with cement. Clinker is much weaker. After calcium hydroxide partially replaces the cement, the initial cement clinker involved in hydration decreases, the water-binder ratio increases, the slump increases, and the smaller fineness stone powder calcium hydroxide has a greater filling effect. Well, the free water content of the system is relatively more, which can effectively increase the adhesion performance of concrete. 3. Calcium hydroxide makes concrete have reinforcement properties The reinforcement of concrete is a prerequisite for the wide application of reinforced concrete. The passivation film can inhibit the anodic reaction, thereby preventing the corrosion of steel bars from occurring. The reason why the pH value of the liquid phase of concrete pores can reach 13. is because there is a large amount of calcium hydroxide alkaline solution in the liquid phase. When concrete is exposed to the atmosphere, carbon dioxide and water in the air can penetrate into the concrete along the capillary channels, and dissolve in the liquid phase of the capillary pores, and hydrate with calcium hydroxide, hydrated calcium silicate, etc. The product interacts to form calcium carbonate. Because the calcium carbonate formed by the reaction is an insoluble calcium salt, its volume is about 17% larger than the volume of the original reactant, which can block part of the capillary pores, which improves the chemical resistance of concrete. And impermeability properties are beneficial. The presence of calcium hydroxide is an important foundation for concrete to have reinforcement properties.