Category Archives: Industrial

Isambard Kingdom Brunel works

The most powerful engineering works of all times

In the latest survey amongst engineering applicants, the crucial question was the most powerful and influential engineer of the last one hundred years. Many of famous and charismatic names were announced, but the single name which is frequently arisen was Isambard Kingdom Brunel. If you have already known this personality and his works, you wouldn’t even ask what makes his career so impressive. It would not come as a surprise that Brunel’s heritage continue being popular today.

The most amazing and scale project of Brunel is Great Bristol Railway. It connects London and Bristol through the network of track, bridges, tunnels and stations. For example, the way features such his breathtaking work like the Box Tunnel, the Wharncliffe Viaduct and Maidenhead Bridge. However, Great Bristol Railway was built in 1870 year, but the quality and design of his project exceeds all up-to-date similar work with high developed technologies.

Thames Tunnel is also one of his major projects, because underwater passage between Wapping and Rotherhithe was created. At first, a lot of different challenges came up, but Bristol had enough courage and patience to overcome all of them and create such construction. The problem actually was that miners and bricklayers were undefended from raw sewage or flames from methane and gas. Several times they have to struggle with flooding. So, the job that they had made was hellishly difficult.

brunel Thames Tunnel

Brunel was involved not only in such global projects on the Britain territory, but also he help to design and build other constructions, many of which manage to stand the hardest times. His magnificent methods and brilliant career demonstrates how various and beneficial career in building can be. For example, he left to modern engineering priceless legacy regarding improving the flow of water and stability of the bank, designed and supplied the vast majority of useful methods and engineering solutions. Today, principles that Brunel used to better the flow of the water within Bristol dock, now are applied to energy production.

Fortunately, nowadays engineers could use recent technologies to help in creating the design and evaluate the possibility of danger in working environment. BIM, which means Building Information Modeling, is one of the most eminent examples due to following reasons. It could create absolute 3D model with status tags of each component of certain building. Furthermore, BIM gives a golden opportunity to map the building at each stage project lifecycle. This practice helps to avoid different sort of risks and dangers concerned for builders and workers.  Through the development of up-to-date technologies in building sphere, new engineering roles were created like BIM coordinator, managers and modellers.

With regards to modern building services, the greatest follower of Brunel’s tradition became PW. Piggott and Whitfield building services are famous for its highest standards. The thing is that company truly works with highly qualified specialists that are major in conceptual, pre-construction and construction stages. In addition, Piggott and Whitfield Company support BIM, which seems to be the set of the future standard of engineering. That’s why they have invested heavily in 3D modeling provision and created professional team with considerable experience.

The Most Widely Used Groups Of Water Resistant Paints

Depending on the origin of fillers, all the water-resistant paints are divided into the following groups:

  • Mineral;
  • Silicate;
  • Acrylic;
  • Silicone;

They all differ in quality of the coating produced, and, of course, in price. For example, silicate paints and silicone groups are way more expensive than acrylic ones. But the coatings, which create these colors, provide unparalleled strength and resistance to damage of any kinds. However, the acrylic paints are more popular among consumers; and the explanation is simple: a conjunction of a reasonable price and the ability to use it in the areas of high humidity predetermine the choice of the majority.

Latex paint coatings not only protects the surface from moisture, but also provide resistance from all the sorts of pollution. This way or the other, figuring out whether acrylic or latex is a better choice for the bathroom or basement is hardly possible – both solutions have their own advantages and weak points. The choice is yours; however, when considering paint products for your bathroom, keep in mind that by using low quality paints you there’s always a risk that the material will crust and get spoiled quicker than you can imagine, within as little as months of use. Thus, you may want to consider the reliable manufacturers, such as Condor or Britannia, specialising in top quality interior and exterior wall coatings manufacturing, guaranteeing the results for long years to come.

Creating an exquisite look

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The essential role of ball valves in engineering systems

Today it is difficult to imagine even a basic engineering system, whether it be water, heat, gas, air conditioning or oi transportation infrastructure without flow control devices of various media, i.e. without the pipeline valves. The principle of operation of any pipeline valves is based on the change in the flow cross sections. One of the most common type that is used to shut off the flow of the medium is the ball valve. The devices invented almost 100 years ago rely on basic physics laws and no significantly more effective alternative until nowadays.

Ball valves and durable industrial ball valves by Orseal, a seasoned engineering equipment manufacturer, are a decent example of a finest quality and unsurpassed cost-efficiency: by its parameters, they in no way inferior, and in many ways superior to costly analogs by large US and Swiss enterprises. Orseal focuses on reliability and durability and promotes easy-to-use systems, valves for gas, water, heating and cooling, as well as for other industrial processes.

When choosing body ball valves for common industries considering carbon steels and special heat-resistant colored enamel models that can withstand operating temperatures up to 200°C, and having a high resistance to the appearance of scratches. However, it is worth noting that there are models of valves providing heat and cold-resistant performance that can withstand ambient temperatures up to -60 ° C, which is especially important for the northern regions, oil and gas industries. Since the locking sphere is the most crucial element in the construction, it is typically made of stainless steel. Additionally, the ball is covered with grease, thus reducing friction and wear of ring seals, plus it increases the life of the ball itself. The surface of the ball is carefully polished with protecting layer (but no more than 0.1 micron thickness). Such a high accuracy at times allows to reduce the wear of ring seal, and hence to considerably increase the service life of the tap (when compared to conventional valves). The reliability and durability of the saddle seal is provided by the crane, which is made of a fluoroplastic with the addition of 20% carbon. In connection with this increase, the design life with proper maintenance grows up to 25 years. The production range of steel ball valves typically includes 16, 25, 40 bar models in a range of diameters from 15 to 500 mm. There are the following options for configuration management you may want to make use of: mechanical gearbox, manual (stick), electric actuator, pneumatic actuator.

To press for an increased durability pay attention to A-class integrity throughout life, through the use of disc springs, which create additional seat springing. Every ball valve is tested for strength and density of design with water or air – saddle seals for leaks, after which it is assigned to a unique number. Ball valves Biwa, successfully passed the test, go to the packing area where passport-equipped with detailed instructions and labeling.

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Gantry Cranes Mechanism Ins & Outs

This post is sponsored by Granada Material Handling, the gantry hoist and overhead crane manufacturing innovator servicing domestic UK and EU market. The article focuses on mechanism of gantry cranes and their functioning.

Gantry cranes structure

The bridge crane is a major supporting structure designed to move the trolley that works with overhead loads or lifting devices. Since the mass of the bridge may constitute up to 75% of the total weight of the metal gantry crane and wind loads on the bridge may increase the load up to 85%, the design of the gantry crane for a given object is absolutely crucial.

Bridge structures are different and are selected taking into account specific conditions of the bridge, having the lowest metal content and the easiest to manufacture and assemble. By the number of supporting beams are classified into single and double-girder bridges. Depending on the required width of the served areas and access roads for vehicles with single beam and girder bridges are either console (with one or two consoles) or non-console.

On a number of cranes used in ports, one of the consoles can run the lift to the passage of ships. The height of the bridge girders is determined by the crane consoles. With the length of the console equal to 20-30% of the span, the height of beams equals 8%. When using non-console cranes the height of beams increases by 4-5%. Continue reading “Gantry Cranes Mechanism Ins & Outs” »

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Ultrasound Industrial Application Overview

Due to the increasing complexity of modern engineering products, the sophistication of requirements for accuracy and reliability, with the improvement of production technology significantly increased demands on the quality of cleaning. Perfection of applied technological processes of cleaning and surface preparation depends essentially on quality cleaning products in various industries. Modern methods of surface cleaning products provide a complete mechanical, chemical and physico-chemical interaction between the active cleaning environment pollution and the surface being cleaned.

High-quality cleaning of parts is a quite complicated and time consuming process. It is carried out with the help of special detergents that have the ability to soften and dissolve dirt to remove it from the surface. Aqueous solutions are known to be the widely used medium for removing contaminants. They are effective, non-toxic, non-flammable and allowing using ultrasonic activation, greatly accelerating the cleaning process and improving its efficiency. Under the influence of ultrasonic the washing liquid acquires the ability to penetrate into the deep pores, tight holes, channels and nodes of complex configuration, portions of which under normal circumstances, the impact of cleaning media will hardly be achieved. Despite the wide variety of processes for the preparation of the surface details before subsequent operations, cleaning process in general is reduced to two aspects:

  1. Cleaning in an aqueous solution of technical detergent (TD);
  2. Washing residues from TD in running water.

One of the most promising applications of ultrasound in various industries, which meets modern requirements of technological processes, is the cleaning of parts, components and assemblies of technological and operational pollution. The specialised equipment is supplied by the brands producing ultrasonic cleaning systems. Hilsonic Company, a prominent ultrasonic cleaner equipment manufacturer offers a range of 20+ models with deep customisation capabilities, and this is just a single brand.

The process of contamination occurs on the surfaces mostly during the production process. Preclassification pollution assessment of the cleaning surface allows to choose the right detergent and cleaning technology. Taking into account the features of ultrasonic cleaning all the dirt is classified into three main features:

  1. the ability to withstand loads microshock;
  2. the nature and strength of the connection with the surface to be cleaned;
  3. the nature of the chemical interaction with the cleaning fluid.

The most common for most industries are oil pollution and oil-based polishing paste, inorganic pollution in the form of mechanical particles and dust, corrosion products, oxides, oxide film. When machining chips, dust, burrs and etc. are produced. When welding and scale, flux residues, resins, salts are formed.

It is relatively easy to remove inorganic contaminants in the form of particles and dust mechanically weakly coupled with the surface details. But when it comes to polishing, grinding and lapping pastes consisting of abrasive powders and binders – the removal will hardly be a walk in the park. They are based on stubborn substance – oleic acid, stearin, paraffin, etc. and abrasives do not dissolve neither in water nor in organic solvents. With ultrasonic cleaning such contamination is removed due to emulsification and saponification of fatty pollution and dispersion of solid particles.

 

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The Industrial Application Of Lime

The largest consumers of lime products are iron, steel and construction industry, pulp and paper industry, chemical industry, sugar industry and agriculture. Significant amounts of lime are used for environmental protection (neutralization of waste water and waste gas).

In industrialized countries, the consumption of lime now stands at about 85 kg per capita per year. The global production of lime, including small producers in developing countries, as well as producers of lime for their own needs (steel mills, paper mills and sugar), is estimated at 300 million tons per year. The market receives about 120 ml tons per year.

Building lime is referred to the product obtained by firing up a full selection of carbon dioxide and calcium-magnesium rocks containing no more than 8% of clay and sand impurities. As raw materials carbonate rocks – limestone, chalk, coquina, dolomitic limestone are used.

Types of lime

According to the number contained in the lime silicates and calcium, giving it hydraulic properties, the following types are distinguished:

  • Air lime, providing hardening of mortars and preservation of strength at normal humidity;
  • Hydraulic lime, providing solidification and strength retention solutions used both in air and in water. A more universal solution is massively utilised by architectural innovators, such as Telling, focusing on hydraulic lime and lime mortar technologies.

In the air lime the amount of silicate and calcium aluminate-ferrites usually vary in the range of 4-12%, in some cases up to 20%. With the content of 25-40% of lime clinker minerals it shows weak hydraulic properties, such lime is called poor hydraulic lime. Strong hydraulic lime contains from 40 to 90% of silicates and alumino-ferrates. Continue reading “The Industrial Application Of Lime” »