All posts by dannik

A New Bitumen Emulsion Complex Commissioned in the Capital of Ghana

For a month (8 June to 8 July this year), GlobeCore engineers visited Accra (Ghana).

The engineers assisted with assembly and commissioning of a full scale bitumen emulsion production complex there. An important part of the complex is GlobeCore equipment for the production of cationic or anionic bitumen emulsions. Note that our company also manufactures storage containers for bitumen emulsions and modified bitumen, bitumen filters and laboratory equipment for the development of binding material formulas. The bitumen emulsion produced complies with quality standards and is successfully used in road construction and repairs. Commissioning was combined with training of the customer’s personnel to operate the equipment.

A similar GlobeCore bitumen emulsion complex has been commissioned in Ghana previously. The facility has been running successfully for two years; the new facility further increases the bitumen emulsion production in this country.

Commissioning of a Bitumen Emulsion Unit in Myanmar

In July 2018, a GlobeCore UVB-1 unit was commissioned in Myanmar. Beside the commissioning, GlobeCore engineers also trained customer personnel to operate and service the unit.

The unit produces 8 cubic meters of emulsion per hour; it consists of a water phase section, emulsion preparation section, controls and piping to supply water phase solution and thinner. The unit is semi-automated.

Bitumen emulsion made with the UVB-1 units complies with international standards of quality and can be used for surface treatment of road top, preparation of cold asphalt mix, patch repairs of roads, tac coating before application of asphalt etc.

For more information on the unit and to place an order, visit the contacts page of our website.

Bitumen Emulsion Unit Commissioned in Kazakhstan

On 10-15 May, GlobeCore representatives visited Kokshetau, Kazakhstan to commission a UVB-1 bitumen emulsion unit with the production capacity of 2 m3/hour).

This GlobeCore equipment can be used to make all types of bitumen emulsion for road repairs or construction. The UVB-1 operates in an automation-assisted mode and consists of several components assembled on a common frame and interconnected by piping.

GlobeCore bitumen emulsion production equipment is available in different production capacities from 1 to 20 m3/hour and in various designs (containerized, framed, mobile or stationary). For more information on choosing the best option, use one of our contacts on the corresponding page.

Increasing productivity of existing bitumen-emulsion plants

Dear Valued Customers! We would like to remind that GlobeCore provides an opportunity to increase the existing bitumen-emulsion plants performance by introducing an additional block. It has the potential benefits in the form of efficiency and functionality.

It allows to raise the productivity of both GlobeCore plants and plants of other manufacturers. One such project was implemented in Thailand, where the existing equipment was complemented with a water phase extension section.

For questions and inquiries please contact our managers by tapping the contacts.

Improve the quality of bitumen using UMB-6 plant

How can I improve the quality of bitumen? What is the difference between modified bitumen and common non-modified bitumen? What equipment is used for bitumen modification?

Bitumen is one of the most common materials in construction. It is used in roofing and waterproofing works, construction and repair of road surfaces, the protection of pipelines, the lining of canals,

But with all the advantages, bitumen has one drawback, which is its fragility in low temperatures. In severe climate conditions, bitumen coatings fail before their expected life time. In warm climate under sun rays and in high temperatures the bituminous asphalt layer is dulling and aging a lot more intensely.

Modifying bitumen to improve its quality

With introduction of polymers, it is possible to improve the properties of bitumen – reduce brittleness and increase heat resistance. Modifying additives extend the life of bitumen coatings – by resisting deformation in the range of operating temperatures, water resistance and strength.

Equipment for bitumen modification from GlobeCore

GlobeCore produces equipment for modified bitumen for the needs of construction industry. One of the latest achievements of our design department is the improvement plant for mixing bitumen in cycle  UMB-6 (productivity 6 m3 / h).

This equipment can work with various forms of additives (liquid, solid, powder), and its dimensions are adjusted for transportation in a container by road and by sea. In one production cycle, bitumen passes twice through the colloid mill, which allows to increase its quality without loss of productivity. Also the number of bitumen pumps is reduced from three to two: one for pumping in, and the other for a colloid mill and pumping out.

If you are interested in purchasing a UMB-6 bitumen modification unit, please get in touch with one of our contacts.

Commissioning of a UVB-10PK Bitumen Complex in Ghana

A team of GlobeCore specialists visited Accra (Ghana) in August for commissioning and personnel training.

This time, the team commissioned a UVB-10PK bitumen complex, which consits of several sections, each with its own function:

  • bitumen input;
  • preparation of bitumen;
  • production of all emulsion types;
  • emulsion storage and output.

Operating such equipment optimizes motorway repairs and construction, since some of the operations can be performed at the same time (e.g. accepting bitumen and bitumen emulsion output).

The UVB-10PK can be installed on a prepared site in two weeks, including startup and commissioning. The unit can be controlled by a single operator, but for safety purposes, due to hot bitumen and heat carrier use, two operators are preferred.

All operating modes are automated. The operator’s function is to select the mode of operation and start/stop the equipment.

Laboratory disperser

Dispersers are special devices designed for fine grinding and subsequent uniform distribution of particles throughout a given volume. Dispersers are well suited for working with multicomponent systems that can not be overheated. They find wide application in various industries: chemical industry, food industry, pharmaceuticals, oil refining, as well as in agriculture and construction.

But the dispersers are not limited to industrial use only. These devices are also in demand in chemical and biological laboratories. Laboratory disperser is used to obtain small samples, in glasses or test tubes. Such equipment develops fundamentally new recipes, makes changes to existing ones, and conducts various experiments determining the degree of grinding of certain substances and their behavior under certain conditions during dispersion.

GlobeCore offers a laboratory disperser colloid mill KLM. This colloid mill has a number of advantages: it obtains highly stable colloidal solutions, extremely thin suspensions, mixtures and emulsions. GlobeCore colloid mills are not only dispersers, but also homogenizers. In fact, by getting one unit, you get  the functions of two.

The laboratory disperser operates on the principle of “wet grinding”, due to width gap difference at the inlet and outlet of the mill. The higher degree of grinding is achieved due to such factors:

  • complex geometric micro reliefs of rotor surface (increases turbulence);
  • centrifugal forces;
  • high relative speed between rotor and stator;
  • grinding;
  • cavitation.

The productivity of the GlobeCore laboratory colloid mill is 1.8 m3/h, but, it is possible to produce a disperser on an individual order, specially for your laboratory.

Mixer, homogenizer and disperser: how do they compare?

A question that is often asked: why do we need a disperser, when we already have a mixer? First, let’s look at the definitions. A mixer is a device that is generally used in cooking for mixing food products. In fact, a mixer simply mixes the components in a container. As for a disperser, it grinds the raw material, producing a homogeneous mixture.

Theoretically, it is possible to produce emulsions (suspensions) with a mixer, but because the large particles will still be present, the emulsion will not be stable, and in the course of time it will break.

There is another appliance that is similar in purpose – a homogenizer. It mixes solid and liquid components to obtain mixtures of uniform consistency. Homogenization, partially include dispersing, but rather as an additional effect, and not the main process. Functionally, a homogenizer is a mixer for industrial use.

GlobeCore advises you not to puzzle over what you need more: a homogenizer or a disperser, and choose a universal option. Colloid mill KLM is at the same time a homogenizer and a disperser. This unit obtains highly stable colloidal solutions, ultrathin suspensions, mixtures and emulsions with particle size 1 μm. This result is provided by a number of factors that occur in a colloid mill:

  • centrifugal forces;
  • high relative speed between rotor and stator;
  • grinding;
  • cavitation;
  • increased turbulence, etc.

GlobeCore colloid mills can easily integrate into existing production lines to increase their efficiency. The components are fed into the mill at a certain ratio of solid and liquid phases to provide a constant productivity.

Priority characteristics of a homogenizer

When choosing this or that technical device, it is necessary to take into account its every characteristic, so that there are no complications during operation. Let’s look at the main characteristics of a homogenizer, which should be considered in the first place.

Is it necessary to start with performance. It you are producing products in small volumes then a KLM homogenizer of GlobeCore 4 m3 / h should be enough for you. If you produce popular products for constant demand, you will need  a bigger capacity KLM homogenizer 22 m3 / h.

Another important parameter is the overall dimensions. They are important when you buy a homogenizer for an existing technological line. A new device should not exceed the set dimensions.

Dispersion is another important characteristic. It depends on the type of products. Food requires one, and bitumen emulsion – another.

Weight of a homogenizer allows a convenience of transportation and its mobility for repair or maintenance.

Equally important is the reliability, and a long service life, time between failures, as well as the length of complete service. Knowing these parameters, you can plan and optimize the workflows in your production.

High pressure valve homogenizers with plunger pumps

High pressure homogenizers with plungers and adjustable valves realize the one-, two- and three-stage homogenization. The basis of such homogenizers is the valve system that creates a high pressure. The raw material passes through small openings in the valves, is exposed to high turbulence, that splits the product into particles. The particles dimensions are determined by the hydrodynamic conditions created in the valve zone.

Also, the valve homogenizers include multiple-plunger pumps (three-, five- or seven- plunger), a homogenizing head, an electric drive, a pressure detector, and other electrical equipment in a frame construction.

A homogenizing head provides an improved homogenization. The material is fed under high pressure into the channel, it moves at high speed through a narrow opening of the valve. The width of the valve seat does not exceed 0.1 mm, and the velocity of the substance is from 150 to 200 m/s.

In practice the working surface is flat, conical or disc shape with a small cone angle.

Valve homogenizer performance is adjusted by changing the pressure of homogenization.  Greater pressure means a more efficient process.