As an important developing country in West Africa, Ghana has been investing more and more in the public health system in recent years, and a number of hospital construction projects are being promoted nationwide. However, the construction site in the suburbs of Ghana’s local urban area is generally limited. The flat open space is narrow and crowded, and the surrounding residential areas are dense. The large-scale fixed mixing equipment covers a large area, has a long installation cycle, and cannot be transferred flexibly. It is completely impossible to adapt to the actual working conditions of the fragmentation, multi-point and multi-regional interspersed construction of the hospital.
As a professional engineering equipment research and development manufacturer, EPDAS has been in the field of concrete machinery and equipment for many years and has mature equipment customization capabilities. After comprehensive evaluation by Ghana customers, we finally reached a cooperation with EPDAS to purchase a one-stop YHZM35 mobile concrete batching plant + two DHBT40 trailer concrete pumps, tailor-made automation mixing, dual-pump synchronous conveying, flexible transfer, all-weather A one-stop solution for stable construction.
The hospital construction project involves multiple stages such as foundation construction and main structure pouring, and the demand for concrete is large. Depending on the scale of the project, the customer expects to need about 30-35 cubic meters of concrete supply capacity per hour.
The structure of the construction site is complex, and there are transportation needs of a certain height and distance in some areas. Therefore, concrete pump machines are required to have a stable long-distance conveying ability and be able to achieve continuous operation.
The construction points are scattered, and the pouring demand is large and the synchronization requirements are high. The whole hospital park covers a large area, and the high-rise construction of the main building, the attached low-rise building, the road foundation of the park, the underground pipe network project and other operations need to be promoted synchronously. Large-scale fixed mixing stations require a large-volume equipment foundation and a long-term fixed establishment, which is not suitable for the construction rhythm of frequent switching of engineering projects or multiple sections spreading in batches. Customers need to move quickly between the construction site and complete the self-supply of concrete on a limited temporary leveling site.
At the beginning of docking customer needs, the EPDAS professional technical engineer team completely based on the actual working conditions of the Ghana hospital project, combined with the daily concrete consumption of the project, the height of the construction building, the distribution of the operating surface, the size of the site, the climate environment, the construction period plan and other multiple core elements, and abandons the single equipment recommendation model, in order to “Production capacity matching, dual pump diversion, flexible adaptation, stability and durability, cost reduction and efficiency increase” is the core principle, and the overall solution of integrated concrete is customized for customers to ensure that each equipment selection meets the real needs of the site.
In terms of concrete batching plant selection, combined with the average daily stable consumption of concrete in the hospital and the construction volume of small and medium-sized infrastructure projects, the theoretical production capacity of YHZM35 mobile batch plant is 35m³/h, which can accurately match the daily continuous feeding needs of the project. The production capacity is moderate and not redundant, which can not only meet the synchronous construction of multiple areas. The supply of materials will not cause waste of production capacity and increase costs. At the same time, this model is a mobile integrated design, which perfectly solves the pain points of the narrow site and the need for flexible transfer. It is the preferred model for restricted sites in the suburbs and small infrastructure projects for people’s livelihood.
At the level of concrete pumping equipment selection, combined with the characteristics of multi-point distributed construction and long-distance horizontal conveying parallel of the project, the customer’s site clearly needs two independent pumping equipment for subdivision operation. DHBT40 medium-sized concrete pump machine has sufficient conveying pressure and long conveying distance, and a single equipment can easily cover the high-altitude pouring of multi-storey buildings; two DHBT40 concrete pumps work and cooperate, one focuses on the pouring of high-rise main structures such as inpatient buildings and outpatient buildings, and the other is responsible for the auxiliary buildings, road foundations of the park, Long distance such as pipe network engineering.
YHZM35 portable concrete batching plant is a star integrated equipment independently developed and mass-produced by EPDAS. It is specially designed for overseas infrastructure projects with limited sites, tight construction periods, frequent transfers, and small and medium-sized projects.
Integrated design
The whole machine adopts an integral frame structure, which is pre-installed and integrated at the factory. It comes with its own walking tire chassis, and the towing vehicle can be quickly transferred.
Intelligent and accurate measurement
Equipped with a fully automatic intelligent central control system and a high-precision digital measurement sensor, sand and gravel, cement, water, added agent and other raw materials can be weighed and measured independently, and the ratio error is controlled within a very small range in the industry.
Compulsory high-efficiency stirring
Equipped with a high-performance double-axis forced mixing host, with large mixing torque and fast mixing speed, excellent mixing effect for high-standard, anti-seepage and special ratio concrete, and the discharge is uniform and no separation.
Anti-corrosion and wear-resistant fuselage
The whole machine adopts sandblasting and rust removal + multi-layer anti-corrosion spraying process, and the steel structure is anti-rust, anti-corrosion and anti-aging as a whole; the material contact area is equipped with a thickened wear-resistant lining plate to resist long-term washing and wear of sand and stone.
| Model | YHZM35 |
| Theoretical output (m3/h) | 35 |
| Concrete mixer | JZM750 |
| Aggregate feeding method | Belt conveyor |
| Aggregate batching machine | PLD1200 |
| Maximum aggregate size (mm) | 60/80 |
| Discharge height(m) | 1.3 |
| Aggregate weighing accuracy (%) | ±2 |
| Cement weighing accuracy (%) | ±1 |
| Water and additive weighing accuracy (%) | ±1 |
| Total weight (tons) | Thirteen |
| Total power (kW) | Chapter 46 |
| Control System | computer |
This project is equipped with two DHBT40 concrete pumps of the same model. This model is a mature export medium-sized pumping equipment of EPDAS. After many years of overseas market verification, it has stable performance and solid structure.
Strong pumping performance
The rated conveying pressure of DHBT40 pump is reasonable, and the vertical conveying and horizontal conveying ability are outstanding, which can easily meet the high-altitude pouring of multi-storey buildings in hospitals and large-scale long-distance conveying in the park.
High-quality hydraulic system
The whole series is equipped with an upgraded high-pressure hydraulic system, with stable oil pressure output and sensitive power response. It has its own overload protection, pressure stabilization and high-temperature protection functions, and the pumping force can be automatically adjusted according to the concrete collapse degree.
Thickened wear-resistant structure
The core consumable parts such as hoppers, conveying cylinders, distribution valves, wear-resistant rings, etc. are all cast with high-strength wear-resistant alloys, thickened and reinforced, which are resistant to washing and loss-resistant. Long-term transportation of high-strength concrete is not easy to damage.
It occupies a small area and easy to transfer
Trailer-type integrated design, with its own mobile wheel set, can be traction can be flexibly transferred, and the short-distance displacement in the courtyard is simple and efficient; the overall area of the equipment is small, and there is no need for a fixed installation foundation.
Simple operation and maintenance and low cost
The overall structure of the equipment is modular design, the consumable parts are generalized and standardized, and the procurement of accessories in the later stage is convenient; the failure rate of the whole machine is low and the maintenance is simple.
| Item | Unit | DHBT40S-10-56 | |
| Performance of the machine | Max. Theoretic delivery volume | m³/h | 40 |
| Max. Theoretic delivery pressure | Mpa | 8 | |
| Max. Delivery speed | times/min | 30 | |
| Type of distribution valve | S valve | ||
| Specification of delivery cylinder | mm | 160×1000 | |
| Specification of main oil cylinder | mm | 100/70×1000 | |
| Oil tank capacity | L | 260 | |
| Hopper capacity | L | 400 | |
| Outlet opening diameter | mm | Φ125 | |
| Inner diameter of delivery pipe | mm | Φ125/Φ100/Φ80 | |
| Power system | Fuel consumption | ||
| Diesel engine power | Kw | 56 | |
| Rated speed | r/min | 2200 | |
| Idling speed | r/min | ||
| Fuel oil tank volume | L | ||
| Hydraulic system | Hydraulic oil circuit type | Open circuit | |
| Max. Oil pressure of main system | MPa | 28 | |
| Max. Oil pressure of mixing system | MPa | 14 | |
| Max. Mixing speed | r/min | 40 | |
EPDAS has focused on the research and development and manufacturing of concrete mixing and pumping engineering equipment for many years, with a modern production base, a complete production line and a perfect quality control system. From raw material selection, core parts procurement, modular production assembly to factory inspection of the whole machine, the whole process strictly follows the international production standards.
Unlike suppliers who sell single equipment, EPDAS insists on taking the actual working conditions of the project as the core and providing customers with one-on-one exclusive technical scheme design. This integrated scheme significantly improves construction efficiency and effectively reduces the risk of transportation costs and time delays.
Over the years, EPDAS equipment has been exported to Africa, Southeast Asia, Latin America, Central Asia and other countries and regions in large quantities. It is widely used in hospitals, roads, bridges, residences, municipalities, industrial parks and other infrastructure projects. Our equipment has stable performance in different climates and construction environments.
Relying on the advantages of independent research and development and large-scale production, EPDAS provides customers with cost-effective products and a complete set of solutions under the premise of ensuring the high quality of equipment. The overall energy-saving and consumption-redession design of the equipment, with low operating energy consumption, low wear and long service life.
The new project of Ghana Hospital is a typical benchmark case of EPDAS relying on YHZM35 mobile batching plant + two DHBT40 trailer concrete pumps to help upgrade public medical infrastructure in Africa. In the future, EPDAS will continue to focus on overseas market demand, continuously optimize the R&D and manufacturing level of concrete equipment, and continue to output customized, one-stop and highly adaptable overall construction solutions.
