tecnologia de perfuração.


(1) When using the drilling rig to drill, the driver should be placed in the drilling position, so that the front end is against the rock, and the distribution should be careful to let the drilling rig move forward, so that the drill bit touches the rock; When opening the hole, first quietly let the drilling rig drive, when the drill rod is in place in the rock, it is allocated to the full open position.
(2) Before starting the drilling rig, check whether the charging pressure of the accumulator is normal; Check whether the scouring water pressure and the lubricating air pressure can be; Check whether there is sufficient lubricating oil in the lubricator, and whether the oil supply is appropriate; Check the reverse tendency of the oil pump motor. (3) If the drilling rig cannot open the hole smoothly, it should first assign the rock drill to retreat, and then let the rock drill move forward to open the hole from the beginning.
(4) When replacing the drill bit, the drill bit should be gently pressed against the rock, so that the motor of the drill can be reversed to complete the sensitive unloading head.
(5) The inspection of hydraulic components can only be prevented under the condition of pole cleaning, and after the connecting tissue is removed, it must be quickly plugged with the cleaning tightly matched plug. Before the repaired rock drill is used from scratch, it is necessary to circulate the hydraulic oil into the oil circuit to wash the components of the hydraulic system.
(6) The oil level and oil supply of the lubricator should be checked regularly; The gear with reverse structure is regularly filled with high-temperature grease; Check the oil level in the lubricating oil tank regularly and remove the dirt in the oil tank

...
tecnologia de perfuração.2025-08-14 12:55
1659

Vertical slag pumps are indispensable for industries that handle molten and abrasive materials. Their specialized design, combined with advancements in materials and engineering, ensures efficient and safe transportation of byproducts. As industries continue to seek efficient solutions for waste management and materials handling, the role of vertical slag pumps will become increasingly significant. Manufacturers like Weir Group, KSB, Schurco Slurry, ITT Goulds Pumps, and Xylem are at the forefront, providing high-quality pumping solutions that meet the demanding requirements of various sectors. Understanding the capabilities and applications of these pumps can aid industries in improving productivity and safety in their operations.


...
tecnologia de perfuração.2025-08-14 11:40
326

  • In conclusion, HPMC polymer, with its diverse range of applications and eco-friendly attributes, has become a cornerstone in multiple industries. As research continues to explore its full potential, the significance of HPMC in shaping the future of sustainable materials is expected to grow even more.
  • Cement adhesive additives have become an indispensable part of the modern construction industry due to their ability to improve the performance and longevity of concrete structures. These additives, when incorporated into cement mixtures, significantly enhance the adhesive properties of cement, thereby increasing its bonding strength and durability.
  • Understanding Hydroxypropyl Methylcellulose (HPMC) Powder A Versatile Polymer for Various Industries
  • One of the key uses of hydroxypropyl methylcellulose is in the construction industry. It is commonly used in cement-based products such as dry-mix mortars, plaster, and tile adhesives. HPMC improves the workability of these products and enhances their water retention and adhesion properties. It also helps to prevent cracking and shrinkage during the curing process, resulting in stronger and more durable structures.
  • In the pharmaceutical industry, hydroxyethyl cellulose serves as a binder and disintegrant in tablets. It helps to maintain the integrity of the tablet during storage while ensuring rapid dissolution upon consumption. This property is crucial for controlled-release formulations that require precise dosing over time.
  • In addition to its practical applications, MHEC has also been studied for its potential use in environmentally friendly technologies. For instance, researchers have explored using MHEC as a component of biodegradable plastics, which could help reduce the amount of non-biodegradable waste produced by traditional plastics. Furthermore, MHEC has been investigated as a soil conditioner, improving soil structure and water retention capacity while promoting plant growth.
  • HPMC is a semi-synthetic polymer derived from cellulose. It consists of a glucose unit backbone with methyl and hydroxypropyl groups attached to it. This combination of substituents gives HPMC its water-soluble nature and thickening ability. On the other hand, HEC is also a cellulose derivative but with hydroxyethyl groups instead of hydroxypropyl groups. This subtle difference in chemical structure results in distinct physical and chemical properties between the two polymers.
  • Both HEC and HPMC have their advantages and disadvantages. HEC, while providing good film formation, can be more sensitive to temperature changes. Conversely, HPMC offers better stability and can withstand higher temperatures, but it might not provide the same level of film formation as HEC. The choice between these two largely depends on the specific requirements of the end-product.
  • HPMC, known scientifically as hydroxypropyl methylcellulose, is a semisynthetic polymer that has found widespread use in the pharmaceutical industry due to its exceptional ability to form viscous solutions or gels. This property makes it ideal for crafting matrices for extended-release drugs. Its hydrophilic nature allows it to absorb water and swell, creating a gel layer through which the active medication must pass before being released into the body. This mechanism ensures that the drug is delivered gradually over an extended period, maintaining therapeutic levels of the medication without the highs and lows associated with immediate-release formulations.
  • In the food industry, HPMC serves as a food additive, improving texture, viscosity, and shelf life of various productshpmc for sale. It is vegan-friendly, gluten-free, and approved by regulatory bodies, making it a safe choice for manufacturers seeking high-quality food-grade HPMC.
  • In the pharmaceutical sector, HEC serves as a binder, disintegrant, and viscosity enhancer in tablet formulations
  • Hydroxyethyl Cellulose Manufacturers A Comprehensive Guide