#cement plant

[geopsych]

Sunrise light on steam from the cement plant, January 2022.

[meriol-lehmann]

boulevard du centenaire, saint-basile-de-portneuf

[jacques-le-fataliste-23]

Cement Plant in Japan Via: https://www.reddit.com/r/Construction/comments/1e7aser/cement_plant_in_japan_why_does_it_look_so_crazy/

[darko-china]

Maximizing Efficiency with Roots Blowers

In the cement industry, selecting the appropriate blower, such as Roots blowers, is crucial for production efficiency. Recently, Darko gained valuable experience while working with clients that we would like to share. 

Wide range of uses of Roots Blowers

A Roots blower operates as a positive displacement rotary blower, utilizing two rotor-shaped blades to compress and transport gas through relative motion within a cylinder. This design features a simple structure, which facilitates easy manufacturing. Consequently, it is well-suited for gas conveying and pressurization in low-pressure applications. Additionally, it can effectively function as a vacuum pump.

Roots blowers are widely used in various fields due to their stable performance. They find applications in wastewater treatment, water supply, pharmaceutical and chemical industries, flue gas, dust handling, and aquaculture. Furthermore, they are involved in cement transport and desulfurization and dust removal industries, serving essential functions such as gas conveying, pressurization, and ventilation.

Background

Not long ago, a northern cement plant ordered our composite mixer and requested to pair it with a vortex blower. Previously, our composite mixers and air-chain conveyors were typically equipped with Roots blowers, so we were not very familiar with the technical parameters and performance of the vortex blower.

At the same time, a southern cement company reported that when using our FUK800×60 meter air-chain conveyor, the throughput reached 410-420 t/h, but dust began to spill, failing to meet the designed capacity of 650 t/h. This prompted us to quickly visit the site to resolve the issue.

On-Site Investigation and Analysis

Technical Parameter Review

Our technical team arrived at the site. We reviewed the installation and technical parameters of the equipment. We found that all agreed-upon indicators were met. However, the blower in use was not the Roots blower we provided. Instead, it was a vortex blower purchased by the client.

Testing Issues

During the testing process, the throughput remained stuck between 410-420 t/h, accompanied by dusting issues. After careful observation, technicians noticed that opening a viewing port about ten meters from the discharge increased the material level, allowing throughput to rise to 500 t/h. However, dusting issues reappeared under full load, creating concern.

Response Strategy

Blower Replacement

We learned that another nearby company could meet their design requirements with a different blower. Therefore, we decided to take a dual approach:

Replace the blower with a Roots model that closely matched the technical parameters.

Continue to explore the performance of the vortex blower.

Adjusting Variable Frequency Motor Settings

We adjusted the vortex blower. We discovered it used a variable frequency motor. The technical parameters showed that pressure and airflow varied at 50HZ and 60HZ. Therefore, we decided to increase the motor frequency to 60HZ for testing. This change allowed the throughput to easily exceed 500 t/h. Eventually, it reached 680 t/h during adjustments.

Blower Comparison Analysis

Roots Blower vs. Vortex Blower

Through this experience, we conducted a comparative analysis of the two blowers:

Roots Blower: Offers stable pressure and airflow, with a power rating of 15 kW, making it suitable for applications with high pressure requirements.

Vortex Blower: Pressure and airflow vary with different frequencies, with a power rating of around 20 kW. It can be used in various applications but may not be as stable as Roots blowers in certain conditions.

Conclusion and Recommendations

Based on our practical experience, the Roots blower shows better technical performance and energy efficiency. This makes it a better fit for Darko's composite mixers and air-chain conveyors. The vortex blower can serve as a replacement in some situations. However, the Roots blower is preferable when high pressure stability is needed.

If you have any questions about blower selection or would like to learn more about our products, please feel free to contact us at Darko. Together, we can explore ways to improve production efficiency in the cement industry!

[piyaliengineeringinsights]

[poojalate]

How to Get the Right Cement and Sand Ratio for Floor Plastering

Floor plastering is important in providing a smooth and hard-wearing surface that can easily cope with normal traffic. The right cement plastering ratio is crucial to obtain the right strength and workability that will enable one to obtain a high-quality finish.

This guide will guide you on how to calculate the correct cement and sand ratio for plastering and also explain the importance of using such specialized products as roof special cement and ready-mix concrete.

Why the Cement Plastering Ratio is Important

Cement plastering ratio is the ratio of cement, sand, and water used in cement plastering work. This ratio is important in determining the right proportion of strength, workability, and durability of the concrete. For floor plastering, the typical ratio ranges between 1:The ratio of cement to sand used in the process is 1:4 and 1:6 depending on the nature of the surface to be treated.

A stronger mix, such as 1:4, is suitable for areas with much traffic or loads while a 1:6 ratio is suitable for normal residential floors.

The Cement Sand Water Ratio for Plastering: A Guide

As important as the cement sand water ratio for plastering is the right consistency of the mix. Excess water in the plaster mix can lead to shrinkage cracks while a shortage of water makes the mix difficult to apply. The ideal is to achieve a workable blend that will stick well to the surface of the material.

Selection of the Right Material for Floor Plastering

Best Cement for Roof Slab and Floors

Although the best cement for roof slabs is developed for roof construction, it is also strong and durable for floor plastering. High-quality cement is used to guarantee a strong surface that cannot crack or wear out easily.

Roof Special Cement

Roof special cement is another good material for floor plastering particularly in the areas of the house that are frequently exposed to moisture. It also does not easily get affected by dampness hence making the surface last longer.

Ready Mix Concrete

Ready-mix concrete is useful for large projects or where time is an issue. It provides uniformity in quality and does not require on-site mixing, thus saving time and costs on labor and materials.

How to Achieve the Correct Cement and Sand Ratio for Plastering

Identify the Surface Needs: Determine the type of floor and its application. High-traffic areas or industrial floors may require a stronger cement and sand ratio for plastering, such as 1:4, for added durability.

Measure the Materials: Ensure you measure the right proportions of cement and sand as required in the process. For instance, if using a 1:4 ratio, you will require one part of cement and four parts of sand in the mixture.

Mix Dry Ingredients: The cement and sand must be blended well in their dry form to avoid any uneven distribution. This step is crucial for getting a smooth plaster surface.

Add Water Gradually: Gradually add water to get the right texture of the dough. The correct cement-sand-water ratio for plastering should produce a material that can be easily applied but not very sloppy.

Apply the Plaster: Level the mix on the floor using a trowel so that it has an even thickness all over the floor. Apply in small portions to prevent it from hardening before it is leveled.

Curing: Curing of the plaster is very important in order to achieve strength and durability of the plaster. It is recommended that the surface should remain wet for at least 7 days so that the cement can be fully hydrated.

Advantages of Employing High-Quality Material

Strength and Durability: The correct cement plastering ratio along with good quality material gives a good surface that is long-lasting.

Moisture Resistance: Roof special cement or ready mix concrete that has water resistance eliminates problems such as dampness and mold formation.

Smooth Finish: The right combination and application give a perfect surface that improves the outlook of the floor.

Conclusion

The cement and sand ratio for plastering is important in determining the success of the floor plastering project. Knowing the correct cement plastering ratio and using high-quality materials such as roof special cement or ready-mix concrete gives a long-lasting and smooth surface that is suitable for everyday use. By following these steps, you will have a professional quality floor plaster that will last for years in your residential or commercial project.

[demechchemical]

Demech Chemical Products Pvt. Ltd. has developed an external tank Coating system in order to protect the very valuable assets for a very long period of time. Tanks are a very important asset for any industry for storing of various solutions /gases such as crude oil , finished products like petrol, diesel, ATF, portable water, edible oil etc. For more details visit https://lnkd.in/e7rRjFb5 or call @ 8240281662 or mail us on enquiry@demechchemical.com

[bestcementcompany]

How to Damp Proof and Protect Your Home from Water Seepage 

Damp proofing your home is not just about fixing issues after they occur, but also about proactive prevention. By using the best cement produced in one of the most Technologically Advanced Cement Plant and ensuring proper waterproofing techniques, you can protect your home from the damaging effects of water seepage and dampness.

[eninrac-consulting]

The Indian Cement Industry: A Foundation for Growth

The Indian cement industry is a cornerstone of the nation's infrastructure development. This blog dives into the landscape of the Indian cement sector, exploring major players like UltraTech Cement and JSW Cement, alongside market trends, product offerings (OPC cement etc.), and pricing. Discover the key factors driving the growth of the Indian cement industry and its impact on the nation's development.

[wondercementpvtltd]

Five modern rules to control the production cost of cement manufacturing plant

The cement manufacturing company is one of the largest manufacturing industries for improving global civilization. Since it has a direct relation with the standard of living, it is also considered one of the highest capital-intensive industries. Due to the increase in competition, it has witnessed unparalleled growth in recent years and that is why the cement industry is also under pressure. The urgent requirement is to counteract the ongoing rise in input prices and reduce the cost of production through optimized operations.

The five rules to control the production cost can be divided into the following major heads:-

Cost of financing:- Being one of the highest capital incentive industries, managing the cost of financing is one of the significant elements in cement manufacturing plant cost. It provides a great opportunity to review the current financial structure and review the short-term and long-term financial goals.

Raw Materials:- Identify which raw material is much cheaper and technically useful for cement manufacturing. We all know that limestone is the primary raw material for cement manufacturing. It is extracted from the earth, and then with the help of dumpers and shovels, limestone is put into the dump hopper. Since limestone has a varied MgO concentration, the high MgO limestone can be saved for the cement grinding step rather than dumped or landfilled. Some limestone resources have high alkalis, which can be balanced by utilizing high-sulfur, low-cost fuels rather than dumping or landfilling. 

Asset Maintainance:- The production cost optimization starts from the asset maintenance stage. The efficient system design helps in getting the result with less investment cost on manpower and energy (fuel and power). Asset maintenance is critical because:-

Extensive repair & replacement expenses

Over-maintenance of equipment results in wear and tear.

Enable remote monitoring and control to increase flexibility and resilience.

Optimizing the usage of Electricity:- The cost of producing cement includes a significant amount of fuel and electricity. Electrical power is needed at every stage of the cement-making process. The following are the areas that help in reducing production costs.

The heat generated in industrial processes and not put to any practical use is known as waste heat energy. The cement industry working on waste heat energy through various waste heat recovery technologies provides valuable energy sources and reduces overall energy consumption.

Utilization and motor factors

Compare the current electricity usage with the international best practices.

Optimizing the cost of quality:- The term "cost of quality" refers to a methodology that enables an organization to ascertain the extent to which its resources are used for activities that prevent poor quality, that evaluate the quality of the organization's goods or services, and that result from both internal and external failures. The ultimate goal of the cement plant and Production Departments is to provide high-quality products that follow the customer and standard requirements with the least amount of waste, rework, and customer complaints at the most economically and commercially feasible cost.

Many perfect cement companies, like Ambuja Cement, Ultratech Cement, Wonder Cement, Shree Cement, ACC Cement, etc., have already benefited from the areas discussed above. For any cost reduction in the cement industry, it is compulsory to control these areas, which automatically results in increasing profitability of the company.

[vincivilworld]

UltraTech Cement commissions 1.9 mtpa cement capacity in Pali - Rajasthan

UltraTech Cement commissions 1.9 mtpa cement capacity in Pali – Rajasthan

On Tuesday, the Aditya Birla Group company announced that the 1.9 mtpa greenfield clinker-backed grinding capacity at Pali Cement Works in Rajasthan had been put into operation. According to the corporation, this is a part of the first phase of capacity increase that was announced in December 2020. With 5 different plant locations, the firm and its subsidiary can now produce 16.25 mtpa of…

[meriol-lehmann]

boulevard du centenaire, saint-basile-de-portneuf

[banglamark]

Banglamark is the pioneer of LPG plant design engineering, procurement, construction, testing and commissioning projects in Bangladesh. We design, procure, supply and do the construction of LPG pressurized spherical tank with it's safety relief system and tank instrumentation to store the LPG properly. We also design, supply and commission the LPG filling carousel system, chain conveyor system, truck loading unloading, all piping and instrumentation, electrical motor and drives, fire alarm and fire fighting, earthing, PLC automation system of this plant to run the plant properly with. We also do annual maintenance of the plant with spare parts supply and installation with supervision. Almost 80% of the plants in Bangladesh is empowered by our equipment. Banglamark provide turn key solution with project management service for this explosive fuel solution.

[darko-china]

Bucket Elevators: Key to Modern Transport

What is a bucket elevator？

Bucket elevators are popular vertical conveying devices. They primarily elevate powdered, granular, and small block materials. These elevators have high conveying efficiency, a compact structure, and a small footprint. They can lift materials to heights of 40 to 100 meters while remaining reliable. This reliability makes them essential in various industries, such as power generation, cement, metallurgy, machinery, chemicals, light industry, and agriculture.

Moreover, bucket elevators are widely used in the cement industry. Their small footprint, simple structure, large capacity, high lifting height, and low energy consumption contribute to their popularity. They are critical at different stages, including raw material storage, transportation, grinding systems, clinker feeding, cement grinding, and packaging. In modern large-scale cement production lines, bucket elevators are vital components in key positions.

Nantong Darko’s Expertise

Nantong Darko has ten years of experience in machinery manufacturing. We use advanced design principles to create our products. We also select high-quality steel and components. Additionally, we strictly control manufacturing precision to ensure reliable operation of our bucket elevators. Our product range includes NE type, TD type, TH/HL type, and dewatering scooping bucket elevators.

Classification of Bucket Elevators

1. By Layout

Vertical: The most common layout for conveying materials straight up.

Inclined: Suitable for scenarios requiring material elevation at a certain angle.

2. By Discharge Method

Centrifugal: Utilizes centrifugal force for discharge, suitable for conveying small, free-flowing materials, such as dry powders.

Gravitational: Relies on the weight of the material for discharge, suitable for large, heavy, and abrasive materials like ores and stones.

Mixed: Combines characteristics of both centrifugal and gravitational discharge methods, offering a wider application range.

3. By Feeding Method

Scoop: The bucket scoops material from the bottom; commonly used for conveying loose powders, granules, and small blocks.

Injection: Material is directly injected into the bucket, suitable for large and abrasive materials.

4. By Bucket Structure

Shallow Bucket: Wider and shallower bucket suitable for conveying damp, easily clumping, and poorly flowing materials.

Deep Bucket: Narrower and deeper bucket ideal for dry, loose, and easily spilled materials.

Triangular Bucket: With slanted walls, typically used for conveying large items.

5. By Traction Component

Belt: Low cost, light weight, and smooth operation, but with lower strength, not suitable for high-temperature or abrasive materials.

Steel Chain: High strength and wear resistance, suitable for high-temperature, heavy load, and abrasive materials.

Structure of Bucket Elevators

Bucket: Used for loading and elevating materials.

Traction Component: Such as belts or chains, which drive the movement of the buckets.

Drive Device: Provides power, typically including motors and reducers.

Upper and Lower Drums (or Sprockets): Change the direction of motion of the traction component.

Casing: Forms a closed transport channel to prevent material spillage and dust escape.

Tensioning Device: Adjusts the tension of the traction component to ensure normal operation.

Working Principle of Bucket Elevators

Bucket elevators scoop material from the storage area below with the buckets and elevate it to the top as the traction component (such as a conveyor belt or chain) moves. At the top, the bucket flips over and dumps the material into the receiving chute.

In belt-driven bucket elevators, the drive belt is typically made of rubber and installed on the drive drums and redirecting drums. Chain-driven bucket elevators usually have two parallel drive chains, with a pair of driving sprockets on either the top or bottom, and a pair of redirecting sprockets on the opposite side. To reduce dust escape, bucket elevators are typically equipped with a casing.

Precautions for Using Bucket Elevators

Strictly follow the principle of “no-load start, empty stop.” Ensure there is no material load before starting, and only feed materials once the machine is running smoothly. Empty the machine before stopping to avoid overload during the next start.

Feed uniformly to ensure unobstructed discharge. If a blockage is found, immediately stop feeding and address the issue.

Keep the bucket belt centered in the casing. If it drifts or becomes too loose, adjust it promptly using the tensioning device.

Prevent large foreign objects from entering the casing to avoid damaging the buckets. A metal grid can be installed at the feed inlet to block fibrous impurities like straw and rope.

Regularly check the tension of the bucket belt and the connection between buckets and the belt. If any looseness, detachment, misalignment, or damage is found, repair or replace it promptly to avoid more severe failures.

In case of sudden shutdown, first clear any accumulated materials in the casing before restarting to prevent excessive load during startup.

Understanding the classification, structure, principles, and precautions of bucket elevators is crucial. This knowledge ensures safe, efficient, and stable operation. If you have questions or need assistance, please contact us. Over the past ten years, Darko has introduced many innovations in vertical conveying technology. We have achieved significant progress in high-performance bucket elevators. Our experience and pioneering spirit have made us industry leaders in the design and manufacture of these elevators.

[piyaliengineeringinsights]

[poojalate]

Durability and Aesthetics: How Cement Selection Impacts Educational Facilities

The architectural planning and construction of educational institutions are paramount to ensure that the buildings effectively support learning for an extended period. The selection of construction cement significantly influences the durability, sustainability, and aesthetic appeal of these educational structures. This article delves into the criticality of meticulously choosing cement for such constructions.

Durability and Educational Facilities

Education facilities are used most intensely and are often exposed to a wide range of usage and misuse. Whether it is the students’ movement in the corridors or the facilities shifting furniture across the classrooms, these high-traffic areas demand durability. Cement being one of the construction essentials influences the stability of the structure in question.

Concrete consists of cement used to construct foundations, walls, floors pavements, and the like. The right chosen cement reinforces strength and endurance within these components to accept excessive stress and other challenging conditions, for example, temperature alteration, humidity, weight pressure, etc.

Different Types of Cement that can be used for Durable Construction

Various cement types exhibit differing levels of durability. Ordinary Portland Cement (OPC) is widely utilized in the construction industry owing to its exceptional compressive strength. However, in regions prone to inclement weather conditions, the use of specialized cement may be imperative for the construction of educational institutions.

Sulfate-resisting cement (SRC) is specially designed for working environments that are characterized by exposure to sulfate-bearing water or soil, which would not otherwise allow for structures to achieve a long service life. Similarly, PPC is known for non-chemical solubility and its capability to enhance the concrete life span.

One of the important factors that defines the construction’s lifetime and is related to the cement hydration process is heat. Low-heat cement is the perfect solution when it comes to large projects such as those concerning university facilities because it helps prevent the formation of thermal cracks which over time weaken the structure of the concrete used.

Beauty and Uses of Cement

In educational architecture, beauty is important as appearance plays a major role in the emotional aspect of learning institutions across the country. Agreeable concrete aesthetics can be achieved by using appropriate materials and specific construction methods. This has been the recent trend of cement sundries where institutions have preferred to adopt them when constructing attractive and modern units.

Types of Cement with an Emphasis on Ornamental

Other blended Portland cement products include White Cement and Colored Cement which are widely used in improving the aesthetics of institutes. It is also ideal in modern schools to achieve neat and smooth surfaces besides, white cement can be used for facades, tiles, and other structures hence the need for a better environment and aesthetical appearance.

In the case of colored cement, the pigments used create a higher given shade or tint and a broader range. It is of value where it is necessary to divide one area of a building from another and for institutions’ identification. Also, they can be wear and scratch-resistant hence providing a long-lasting elegance.

Points to consider on sustainability

One must consider sustainability in construction today, especially for facility design for use in education. Lately, the construction industry has been in the spotlight due to higher emissions of CO2. As much as this is the case, there is more innovation of environment-friendly cement-based products in the market.

Blended cement like PPC is more environmentally friendly as compared to OPC. Thus, fly ash is used instead of raw materials, which saves energy at the manufacturing stage. Employing environmentally friendly materials and techniques in construction benefits the goals of such an institution.

Conclusion

The selection of cement for structures intended for schools depends on the durability required, or the aesthetic appeal of the schools. Existing cement science technology provides the level of durability, fire resistance, architectural aesthetics, and environmental consciousness needed to build necessary facilities.

The complexity of concrete should not be neglected as it plays a role in producing structures of facilities that can remain functional as well as aesthetically appealing for several years. Conduct thorough online research to learn more about the best cement for construction.