The liquid dosing system mainly consists of a storage system in accordance with MIE APQ (0 to 10) depending on the product. This storage is equipped with a filling system from the product container (from IBC, tank, etc.), a measurement system (cells, radar, maximum levels), and, if necessary, may have an agitation, heating, or cooling system.

Subsequently, a process delivery system is available. Depending on the required precision, the system will have a pumping system which may be controlled by measurement in the storage tank (by discount), online flow meter, or reception hopper with precision weighing.

The type of pumping system will depend on the product to be dosed, as well as the materials and treatments for the system piping.

Liquid storage and dosing systems enable greater management of raw materials, as well as greater automation of the production process. One of the main advantages of additive dosing systems is the ability to ensure uniform volume of work for dosing, reduction of errors in the process, and improvement in purchasing management due to its automation.

At GMdix Process Engineering, we offer solutions for both volumetric and gravimetric dosing by weight loss or gain, for both principal or secondary products, continuous or discrete (in batches).

We have a wide variety of hoppers, through screws, rotary valves, belts, vibrating channels, accessories, and control systems to adapt to the needs of our clients. We cover a wide variety of grain or powder materials, as well as low and high dosing rates.

As manufacturers of this industrial equipment, we are able to adapt to the requirements of our clients.

Types of dosing systems:

Volumetric dosing:

The flow of material is regulated according to the speed of the dosing element, usually by a screw, which must be suitably selected to provide the required flow rate with the required dosing precision.

Gravimetric dosing:

Material flow is continuously regulated based on weight, thus variations in apparent density, or grain size, do not affect the accuracy of the process.

All the components of our equipment are selected based on the characteristics of the products to be dosed, while always complying with dosing precision, ease of use, and longevity parameters.

All our gravimetric feeders are supplied with state-of-the-art microprocessors touch controls with easy-to-use operator interfaces.

Construction materials may be very different depending on requirements. These may be carbon steel, stainless steel, etc. Different non-stick surface finishes and abrasion resistant coatings are also available.

Depending on the products to be handled, we offer equipment with internal agitators for materials with poor fluidity.

We also offer solutions for easy disassembly and cleaning, which enable quick product changes.

The maximum allowable temperature for this equipment is 80ºC-250ºC. For higher temperatures it is necessary to consult GMdix.

Options: These may be configured with multiple options: bag feed hopper, Big-Bag loading, quick-close valves at the outlet, etc. Also available for installations in classified areas (ATEX areas).

We have a testing laboratory to analyse the client’s product so as to select the best design and suggest handling and transport conditions that enable process optimisation.

This technology is a system that enables powder materials to be conveyed suspended on an air bed.

Air enters the airslide through threaded sleeves and is distributed over the entire surface. Once sufficient internal pressure is achieved, the air exits through the porous fabric, starting the process of fluidising the material. Fluidisation allows particles to be separated by surrounding them with air bubbles and keeping them loose.

Finally, the material is conveyed due to the slope of the airslide between 4º and 10º.

The operation of a conveyor belt consists of the continuous movement of a belt mounted on platforms with variable dimensions and which may have different types of accessories (side guards, stops, diverters, railings, wheels, and other types of pneumatic or mechanical accessories). Speed and load capacity will depend both on the characteristics of the material to be conveyed (dust, fine grain, packages, etc.) and the type of conveyor belt.

Through the distribution ducts, the air that passes through the fluidisation panels is introduced, which makes the solid material remain in suspension. Fluidised bottoms are perfect for powder materials, while vibrating bottoms are used for grain materials.

The fluidised and vibrating bottoms are made of carbon or stainless steel, with different outlet diameters and heights and valid up to 250ºC.

The expansion of this type of Big-Bag container (Flexible Intermediate Bulk Container or FIBC) due to its advantages such as its resistance, price, efficient use of space, possibility of direct printing on the polypropylene fabric, availability of lifting handles, etc. has led to increased purchases of Big-Bag loaders as they are versatile and facilitate different types of filling as well as enabling direct weighing and product compaction.

All our Big-Bag Discharger stations are modular. This allows them to be easily configured with various components, ensuring proper operation for each unloading. Our Big-Bag emptying stations may be configured according to the following components:

In direct flow rotary valves, the bulk solids drop into the inlet of the rotor chambers. The rotation of the rotor displaces the material downwards and is blown horizontally through the connection of the conveying pipe (in vacuum and discharge). Its special design allows the circulating air through the conveying pipe to completely clean the rotor.

Materials:

Manufactured in carbon steel, stainless steel, aluminium, Ni-hard. Possibility of chrome, tungsten, or nickel-plated interior coatings, and multiple rotor constructions.

Dimensions:

There are different sizes from DN50 to DN 500, with flow rates adapted to each need. We offer direct flow rotary valves for conveying pipes from DN-65 to DN-200.

Outward airtightness:

Airtightness with the outside is achieved by the use of seals (NBR or PTFE), with or without back pressure, depending on the use of the rotary valve. Lid pressurisation system may be included.

Drive:

Depending on the valve model, it may also be activated by a gear motor directly attached to the rotor and supported on the side cover of the valve. This type of gear motor provides high power density and can handle large radial loads.

We design and manufacture transmitters for pneumatic conveying in dense phase, by packages, or fluidised of solid powder or grain products. Especially suitable for abrasive, fragile, or mixed products.

Product characteristics: