WO2012164107A1

WO2012164107A1 - Modular plant for milling cement

Info

Publication number: WO2012164107A1
Application number: PCT/ES2011/070392
Authority: WO
Inventors: Jean Michel ARTIGAS REYNAUD; Javier MARTÍN ABADÍA; Moises RODRÍGUEZ NUÑEZ
Original assignee: Cemengal, S.A.
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2012-12-06
Also published as: MX2013013967A; AU2011369840A1

Abstract

The invention relates to a modular plant for milling cement, consisting of modules (2, 3, 4, 5, 6) inside which equipment is integrated in a distributed manner, said equipement consisting of receiving hoppers, mills or a rolling press, a separator, a filter, a ventilator, a bagging unit and a control room, among other elements. The modules consist of independent bodies that can connect to each other, having a shape and size that match those of standard merchandise containers. Said modules consist of parallelepiped metal structures provided with anchors on the edges and apices thereof, allowing same to connect to each other. The modules can be open structures made from tubular and/or framing elements, or closed structures made from partitions, having hollows, orifices and/or additional doors or hatches, either on the upper, lower or lateral parts of the equipment, to allow same to connect to each other.

Description

MODULAR PLANT FOR CEMENT GRINDING

OBJECT OF THE INVENTION

The invention, as expressed in the statement of the present specification, refers to a modular plant for cement grinding, contributing to the function to which several advantages are destined, which will be described in detail below, which represent an improved alternative against to what is known in the state of the art applicable for the same purpose. More particularly, the object of the invention is centered on an installation that, being destined to carry out in a conventional manner the grinding phase comprised in the manufacture of cement, presents the particularity of being structurally designed to be constituted as a modular plant, it is that is to say, divided into different modules, each of which has the advantage of presenting a compact configuration of reduced dimensions that, in addition, coincide with the dimensions of a standardized container, so that the plant is formed by several "containerizable" modules, such expression being understood as that each of said modules that make up the plant are suitable to be manipulated, moved and transported as containers, thereby providing a much more versatile and practical configuration to the plant, both for its operation and performance and for its installation , greatly expanding its business possibilities since , among other advantages, allows easy transport of all its components and production of small volumes. FIELD OF APPLICATION OF THE INVENTION

The field of application of the present invention is part of the technical sector of the industry dedicated to the manufacture of cement.

BACKGROUND OF THE INVENTION As is known, cement is a binder formed from a mixture of calcined and subsequently ground limestone and clay, which has the property of hardening on contact with water. Mixed with stone aggregates (gravel and sand) and water, it creates a uniform, malleable and plastic mixture that sets and hardens, acquiring stony consistency, called concrete or concrete and whose use is very widespread in construction and civil engineering. The cement manufacturing process comprises four main stages:

- Extraction and milling of the raw material. - Homogenization of the raw material.

- Clinker production.

- Cement grinding.

The raw material for the production of cement (limestone, clay, sand, iron ore and gypsum) is extracted from quarries or mines and, depending on the hardness and location of the material, certain operating systems and equipment are applied. Once extracted the raw material is reduced to sizes that can be processed by crude mills.

The homogenization stage can be wet or dry, depending on whether air currents or water are used to mix the materials. In the wet process the mixture of raw material is pumped to homogenization rafts and from there to the furnaces where the clinker is produced at temperatures above 1500 ° C.

In the dry process, the raw material is homogenized in raw material yards with the use of special machinery. In this process the chemical control is more efficient and the energy consumption is lower, since by not having to eliminate the added water in order to mix the materials, the furnaces are shorter and the clinker requires less time subjected to high temperatures The clinker obtained, regardless of the process used in the homogenization stage, is then ground with small amounts of plaster to finally obtain cement. The cement manufacturing process ends with the joint grinding of clinker, plaster and other materials called "additions."

Said cement grinding is done by mechanical equipment in which the mixture of materials is subjected to impacts of metallic bodies or to high compression forces. The following equipment is used for this:

Roller press Vertical roller mills

Ball mills Horizontal roller mills

Well, the objective of the present invention is to develop a plant destined only to the final part of the cement manufacturing, that is, the grinding, which is modular and of small dimensions to be able to grant it a fixed and temporary character and / or transportable, unlike conventional installations that are usually large and only of a fixed nature, and that are normally designed for the grinding of large volumes of material, usually being arranged in the same installation where the rest of the previous processes of cement manufacturing.

In addition, the invention aims to develop a plant that can be transported and installed quickly and simply in locations other than the installation of other cement manufacturing processes, and allow the supply of cement in small volumes and in isolated markets.

On the other hand, in reference to the current state of the art, it should be noted that the existence of any other modular cement grinding plant or invention of similar application that has technical, structural and constitutive characteristics similar to those of the applicant is unknown. presents the one that is recommended here, and whose characterizing details are conveniently included in the claims Finals that accompany this report.

EXPLANATION OF THE INVENTION

Thus, the modular plant for cement grinding that the present invention proposes is configured as a remarkable novelty within its field of application, since in accordance with its implementation and in a restrictive way the aforementioned objectives of granting it both a character are satisfactorily achieved fixed as temporary and / or transportable thanks to its innovative structural configuration based on modules of small size and standardized dimensions according to the dimensions of the transport containers.

For this, what the invention proposes is a new type of modular plant for cement grinding whose novelty lies in the fact of having all the equipment integrated within independent modules where each of said modules is of the configuration and size of a container standardized, of the type conventionally used for the transport of goods.

Thus, the said cement grinding phase, which is conventionally carried out by means of equipment that essentially comprises receiving hoppers, mills or roller press, separator, filter, fan, bagger and control room, among other equipment or devices, are It distributes along several modules that can be attached to each other, where each module is inscribed within the dimensions of a standardized size merchandise container. Thus, and in a preferred but non-limiting manner, the plant has a first module where the hoppers for receiving raw materials are located.

In a second module a ball mill or a roller press is incorporated.

In a third module there is a dynamic separator, the upper body of a filter and the process fan.

In a fourth module the filter hopper is incorporated, which, in turn, acts as a cement silo.

And finally, a fifth module incorporates a bagger and a control room / office for the operator. It is important to note that the aforementioned modules, which, as indicated above, have a configuration and dimensions according to those of the standard merchandise containers, are preferably also configured as said containers, that is, with the anchors that allow their stacking and anchoring to each other, being able to be formed, for example, from open metal structures, based on tubular elements and / or profiles, or by closed metal structures based on boxes with partitions and doors or gates inside access, counting in this case with holes, holes and / or doors or additional gates for the coupling between the different equipment incorporated inside, as well as for the coupling of the additional intermediate elements of conduction of the material between one module and another for allow your correct operation, that is, the grinding of the cement.

For the transfer of the plant, it will be enough to disassemble the different additional coupling elements and each module can be transported by manipulating it as a conventional container, with the advantage that during said transport the different equipment is protected inside each module avoiding any deterioration and allowing storage in an orderly manner and occupying a minimum space.

The advantages provided by the proposed plant are essentially the following:

- Maximum simplicity of the installation.

Very short assembly time, one week.

- Ease to move the whole set from one place to another, and therefore the production.

Minimum need for land for plant installation.

- Very short return on investment, by reducing installation costs and necessary space.

Ability to carry out small production volumes that allow access to isolated markets.

- Low environmental impact Low earth movement due to implantation.

- Immediate replacement of the landscape once its history / productive activity is finished.

Rapid implementation of productive activity, which implies a reduction in investment risk, obtaining an excellent return on investment.

Given the foregoing, it is found that the described modular plant for cement grinding represents an innovation of structural and constitutive characteristics unknown until now for this purpose, reasons that together with its practical utility, provide it with sufficient foundation to obtain the privilege of exclusivity that is requested.

DESCRIPTION OF THE DRAWINGS

To complement the description that is being made of the plant object of the invention, and to help a better understanding of the characteristics that distinguish it, this descriptive report is attached, as an integral part thereof, of a set of drawings in those that, with an illustrative and non-limiting nature, have represented the following:

Figure number 1.- Shows a perspective view of an embodiment of the modular cement grinding plant object of the invention, showing in it the main parts and elements it comprises as well as its configuration and arrangement. Figures 2 and 3.- They show paths, in side elevation and upper floor respectively, of the example of the modular cement grinding plant according to the invention shown in the preceding figure.

PREFERRED EMBODIMENT OF THE INVENTION In view of the aforementioned figures, and in accordance with the numbering adopted, an example of a preferred embodiment of the invention can be seen therein, which comprises the parts and elements described in detail below.

Thus, as observed in these figures, the plant (1) in question is configured from a plurality of modules (2, 3, 4, 5, 6) distributed within which all the necessary equipment that allows the cement grinding to which the plant is destined.

Said modules are constituted by independent bodies that can be coupled together and have a configuration and dimensions according to those presented by standard merchandise containers, preferably measures according to containers whose measurements are, 12,034 mx 2,352 mx 2,395 m. Preferably, in addition, the modules are configured, by parallelepipedic metal structures equipped with anchors at their edges and vertices, which allow their mutual coupling, being able to consist of open structures formed by tubular and / or profiles, or closed structures formed from partitions. and be in such case, equipped with doors and / or side gates, for access to its interior, also having additional holes, holes and / or doors or gates that are convenient, either at the top, bottom or side, for fit together the equipment incorporated in it, the additional intermediate elements of material conduction and electrical wiring, between one module and another. In a preferred embodiment, the plant (1) has a first module (2) inside which one or more receiving hoppers (7) of raw materials are housed. The number of hoppers preferably varies between 2 and 4, according to the needs of each case. Under each hopper (7) an extraction and dosing mechanism (8) is incorporated, which is also inscribed within the module.

In a second module (3) a ball mill (9) or roller press is incorporated, and it also includes the drive and an electric motor (10) that drive said mill.

In a third module (4) there is a dynamic separator (11), the upper body of a filter (12) and a fan (20). The dynamic separator is preferably of the air-swept type, and the upper body of the filter (12) consists of the plenum (13), cleaning system and filter sleeves.

In a fourth module (5) the filter hopper (14) is incorporated, which, in turn, acts as a cement silo. Cement extraction will be done using a thread (15).

Finally, a fifth module (6) incorporates a bagger (16) and the control room / office (17) of the operator.

Thus, for the realization of the grinding, the operative disposition of the modules that conform the plant will be the following:

The first module (2), with the receiving hoppers (7), and the second module (3), which incorporates the ball mill (9), are connected to each other by means of augers (18) conveyor belts or similar systems that they will transfer the material from one module to another, these modules (2 and 3) being arranged, preferably, in the same horizontal plane perpendicular to each other.

On the other hand, the third module (4), the fourth and the fifth modules (5 and 6) are arranged stacked one above the other and aligned longitudinally after the second module (3), so that the third module (4), which incorporates the upper body of the filter (12) is arranged on the filter hopper (14) housed in the fourth module (5) and both elements are placed on the bagger (16), all of which are communicated with the second module (3 ) by means of the corresponding conduits (19) and wiring necessary to allow both the transfer of the material from one module to another and the electrical connection of the different equipment with the control room (17).

Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to extend its explanation so that any person skilled in the art understands its scope and the advantages that derive from it. Likewise, it is noted that, within its essentiality, the invention may be carried out in other embodiments that differ in detail from that indicated by way of example, and which will also achieve the protection sought as long as it does not alter, change or modify its fundamental principle.

Claims

1. - MODULAR PLANT FOR CEMENT GRINDING, which being of the type comprising the use of reception hoppers, mills or roller press, separator, filter, fan, bagger and control room, among other equipment or devices necessary to perform the Cement grinding to which the plant is intended, is characterized in that it is configured from a plurality of modules (2, 3, 4, 5, 6) within which said equipment is distributed distributed; and because said modules are constituted by independent bodies that can be coupled together that have a configuration and dimensions according to those presented by standard merchandise containers.

2. - MODULAR PLANT FOR CEMENT GRINDING, according to claim 1, characterized in that the modules (2, 3, 4, 5, 6) are configured by parallelepipedic metal structures equipped with anchors in their edges and vertices, which allow their mutual coupling . 3. MODULAR PLANT FOR CEMENT GRINDING, according to claims 1 and 2, characterized in that the modules (2,

3, 4, 5, 6) are configured by open structures formed by tubular elements and / or profiles,

4. MODULAR PLANT FOR CEMENT GRINDING, according to claims 1 and 2, characterized in that the modules (2, 3, 4, 5, 6) are configured by closed structures ^' formed from partitions, equipped with doors and / or side gates, for access to its interior, also having holes, holes and / or additional doors or gates, either at the top, bottom or sides, for the interconnection of the equipment incorporated inside, the additional intermediate elements for conducting the material and the electrical wiring, between a module and other.

5. - MODULAR PLANT FOR CEMENT GRINDING, according to some of claims 1 to 4, characterized in that the measurements of the modules (2, 3, 4, 5, 6) are according to the containers whose measurements are 12,034 mx 2,352 mx 2,395 m.

6. - MODULAR PLANT FOR CEMENT GRINDING, according to some of claims 1 to 5, characterized in that it has a first module (2) inside which one or more receiving hoppers (7) of raw materials whose extraction mechanism are housed and dosage (8) that is also registered within the module; in a second module (3) a ball mill (9) or roller press is incorporated, and the drive and an electric motor (10) that drive said mill are also included therein; in a third module (4) there is a dynamic separator (11), the upper body of a filter (12) and a fan (20); in a fourth module (5) the filter hopper (14) is incorporated; and in a fifth module (5) it incorporates a bagger (16) and the control room / office (17) of the operator.

7. - MODULAR PLANT FOR CEMENT GRINDING, according to claim 6, characterized in that, in the operative arrangement, the first module (2) and the second module (3) are communicated with each other by means of augers, conveyor belts or the like (18) and are arranged in the same horizontal plane, perpendicularly to each other; and because the third module (4), the fourth and the fifth modules (5 and 6) are arranged stacked on top of each other and aligned longitudinally after the second module (3), all of which are communicated with said second module {3) by conduits (19) and wiring necessary to allow both the transfer of material from one module to another and the electrical connection of the different equipment with the control room (17).