Concrete plant of Ribeiradio in Portugal for FCC

Alquezar has become consolidated as one of the great specialists at a global level in the manufacture of large concrete plants, for the construction of dams and large public works, after the sale of a new concrete plant, with stockpiling system and aggregate transport, cement and ashes stockpiling system, and pneumatic conveying system for cement and ashes.

The concrete plant, which is now in its assembly phase on-site, incorporates two BHS Sonthofen twin-shaft horizontal mixers, reaching a total production capacity of 300 m³/h. As normal with this type of plant, the aggregate is weighed by means of independent scales, thus minimising downtimes in aggregate dispensing.

FCC has trusted in the quality and professionalism of Alquezar in important projects such as the Dam of Castrovido in Burgos or the Vidin-Calafat Bridge between Bulgaria and Rumania.

Concrete Plant of FOZ TUA in Portugal.

Alquezar wins the tender to manufacture the concrete plant for the hydroelectric dam of Foz Tua, in Portugal.

This is an important project comprised of three parts: Concrete Plant; Stockpiling and Transport of aggregates; Stockpiling of cement, Ashes and Pneumatic Conveying system.

The concrete plant is a dual plant, with BHS Sonthofen twin-shaft horizontal mixers, each one with 4.5 m³ capacity. These twin-shaft mixers admit aggregates of up to 150 mm. The total capacity of the plant is 250 m³ per hour.

The stockpiling of gravel and sand is carried out with metal silos whose capacity varies from 450 m³ to 750 m³, which are divided into different compartments thus permitting the storage of different sizes of aggregates in the same silo, guaranteeing full flexibility of the plant. The plant is completed with belt feeders, vibrating belts, conveyor belts, aggregate loading hoppers and temperature sensors in each one of the aggregate compartments. The transport and supply of the aggregates to the concrete plant is fully automatic.

The cement and the ashes are stored in five 600 m³ capacity silos and are transported to the concrete plant with two dense-phase pneumatic conveying systems.

The temperature control in this project is critical, so the entire plant is manufactured with sandwich panel installation, rock wool coating and thermal paint.

The construction of the Foz Tua dam project is carried out by a consortium of Portuguese construction companies, led by the company, Mota-Engil.

Concrete plant for the Panama Metro

Alquezar has been awarded the manufacture of a concrete plant, model DHA-80, for the construction work of Line One of Panama City, a project carried out by a consortium between the Brazilian construction company, Norberto Odebrecht and the Spanish company, FCC: Line One Consortium.

It is a ready mix concrete batching plant with 60 m³ per hour capacity, with planetary mixer, loading skip and additive dispensing scales. An additional plant has also been manufactured to stockpile cement with 200 m³ capacity silos.

With the sale of this concrete plant, Alquezar becomes consolidated as one of the main machinery manufacturers for quarries, aggregates and concrete plants of Panama.

Áridos Vidal: Mobile concrete batching plant GM-DHA 120

Vidal Obras y Servicios S.A incorporates a new Alquezar concrete batching plant into its machinery pool.

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The latest acquisition of Aridos Vidal, for its production centre in Graus (Huesca), is an Alquezar GM-DHA 130 mobile concrete batching plant.  The installation has one dosed concrete batching line and one double ready mix concrete line.

The production capacity is 100 m3/hour ready mix concrete and 120 m3/h dosed concrete, by means of 3 m3 cycles and double shaft horizontal mixer.

Vidal Obras y Servicios S.A. has several Alquezar concrete batching plants, an aggregate grading and wash plant and a water clarification installation.

New Alquezar's concrete batching plant for Maresa Group

The President of the Community of Madrid, Esperanza Aguirre, presided the launch of one of the most advanced concrete batching plants in Europe.

 

The Maresa group tried out the Alquezar DH-150 dosed concrete batching plant for the first time on Monday 26 April.

This is a novel vertical concrete batching plant, for a maximum production of 220 m3/h, which incorporates new aesthetic and environmental solutions.

It is a complicated project involving the integration of a production centre in the Madrid neighbourhood of Hortaleza, so the installation satisfies the strictest sound-proofing and pollution regulations.

The concrete batching plant is integrated into an urban setting with office buildings, thanks to its spectacular avant-garde glazed cladding, which makes it look just like another any building in the area where it is located.

Technically, it is a vertical plant for the production of dosed concrete, with double loading line, with 220 m3/h maximum production.  The aggregate is stockpiled in 8 stockpiling silos at the top of the plant, with 300 m3 capacity, whilst the aggregate is loaded with 4 bucket elevators. All the mobile elements are designed and optimised to minimise noise and the production of dust.

The inauguration act was presided by the President of the Community of Madrid, Esperanza Aguirre, who highlighted the business work of the Maresa group and the importance of the project for the Community

Ready mix and dosed concrete plant for GEDHORSA

Alquezar finishes the start-up of a modular concrete unit for General de Hormigones

 

The start-up of a modular concrete plant, acquired by the group, General de Hormigones S.A. ended in March last.

This plant is manufactured entirely in modules, so that it can easily be dismantled later, transported and assembled at another work site, thus minimising the times and resources necessary to carry out these operations.

Alquezar has firmly committed to the modular concept for concrete batching installations. The different parts of the installation are designed and manufactured in self-supporting structure modules. These are submitted to pre-assembly in factory, in order to verify the compatibility of all the parts and avoid future problems in the final assembly. This modular design means that the elements can be transported with standardised means (platforms, containers and flat-racks) and that the unit can finally be quickly assembled.

The General de Hormigones S.A. plant is a horizontal station, with enclosure for structure, hoppers and conveyor belts. It has one ready mix concrete production line and two dosed concrete lines, with maximum productions of 120 m3/h dosed concrete and 100 m3/h ready mix concrete.

The installation incorporates a double shaft horizontal mixer, with 3 m3 cycle capacity. The aggregates are stockpiled in 4 25-m3 hoppers, and the cement in 2 100-ton silos.