Mechanical stemming plug apparatus for mining blasting operations
Abstract
MECHANICAL FILLING APPLIANCE, FOR MINING DAMAGES FOR CONTAINING OR CONFINING THE GASES GENERATED BY EXPLOSIVES, PREVENTING THAT THE GENERATED ENERGY IS RELEASED TO THE ATMOSPHERE This invention discloses an apparatus for the filling of boreholes or wells in mechanical ore wells, with objective in mechanical holes. to contain or confine gases generated by explosives, preventing the energy generated by explosives from being released into the atmosphere. An assembly of the mechanical filling device for dynamite mining according to the present invention consists of two parts, one on top of the other: a base part (1), and a center part (6) and additionally includes two pieces of wedges sides (8) and four fixing pivots (11). The mechanical filling device, according to the present invention, and the complete set of said device conform to a cylindrical body, with a smaller diameter than that of the perforation and with a length directly proportional to the diameter and depth of the holes or wells.
Term
Projected expiry 28 March 2028.
- Priority
- Filed
- Granted
- Today
- Projected expiry
17 claims: 4 independent, 13 dependent
- 1REIVINDICAÇÕES 1. Aparelho de obturação mecânica, para dinamitações mineiras para contenção ou confinamento dos gases gerados pelos explosivos, impedindo-se que a energia gerada seja liberada para a atmosfera, caracterizado pelo fato de ser composto por duas peças, uma sobre a outra:a. uma peça base (1) e b. uma peça central (6), e inclui, adicionalmente, duas peças de cunhas laterais (8) e quatro pivôs de fixação (11) .
- 2Aparelho de obturação mecânica, de acordo com a reivindicação 1, caracterizado pelo fato de o conjunto completo do aparelho de obturação conformar-se a um corpo principal (12) cilíndrico.
- 3Aparelho de obturação mecânica, de acordo com a reivindicação 1, caracterizado pelo fato de a referido peça base (1) ser conformada por um corpo cilíndrico, de diâmetro menor do que o da perfuração do furo ou poço, com uma concavidade em sua extremidade inferior, em sua extremidade superior possui um cone fêmea de acoplamento com quatro perfurações circulares (5) para introdução dos referidos pivôs de fixação (11) para união da peça central (6) e com uma perfuração circular central (4) de extremidade a extremidade, por onda passam as linhas elétricas.
- 4Aparelho de obturação mecânica, de acordo com a reivindicação 3, caracterizado pelo fato de a referida perfuração circular central (4) estar em uma faixa entre 6,35 mm (1/4) e 30 mm (1 1/5).
- 5Aparelho de obturação mecânica, de acordo com a 2/4 reivindicação 4, caracterizado pelo fato de a referido peça base (1) incluir em sua extremidade inferior um alargamento (2) de diâmetro maior do que o diâmetro da referida perfuração circular central (4).
- 6Aparelho de obturação mecânica, de acordo com a reivindicação 5, caracterizado pelo fato de incluir opcionalmente um tampão (3) que inclui uma perfuração circular central de extremidade a extremidade de diâmetro menor do que o diâmetro da perfuração circular central (4) e uma ranhura de centro até a borda e de extremidade a extremidade, de maneira a se introduzirem as linhas elétricas.
- 7Aparelho de obturação mecânica, de acordo com a reivindicação 1, caracterizado pelo fato de a referida peça central (6) ser conformada por um corpo cilíndrico de diâmetro menor que o da perfuração de furo ou poço, em sua extremidade inferior possuindo um cone macho de acoplamento com quatro perfurações circulares (5) para introdução dos referidos pivôs de fixação (11) para a união da peça base (1) e em sua extremidade superior adotar uma forma cilíndrica biselada com dois cortes angulares e os dois lados restantes mantendo sua curvatura, adicionalmente, ter uma perfuração circular central (4) de extremidade a extremidade, por onde passam as linhas elétricas, da mesma forma, localizando-se em ambos os cortes angulares de sua extremidade superior, guias macho (7), localizadas na parte central verticalmente, permitindo-se, desta forma, que a peça central (6) deslize contra as peças de cunhas laterais (8) .
- 8Aparelho de obturação mecânica, de acordo com a 3/4 reivindicação 7, caracterizado pelo fato de a referida perfuração circular central (4) estar em uma faixa entre 6,35 mm (1/4) e 30 mm (1 1/5).
- 9Aparelho de obturação mecânica, de acordo com a reivindicação 7, caracterizado pelo fato de os cortes angulares verticais de extremidade a extremidade dos biselados da peça central (6) estarem em uma faixa entre 175° e 164°.
- 10Aparelho de obturação mecânica, de acordo com a reivindicação 9, caracterizado pelo fato de os referidos cortes angulares estarem em uma faixa mais preferencialmente entre 174° e 168°.
- 11Aparelho de obturação mecânica, de acordo com a reivindicação 10, caracterizado pelo fato de os referidos cortes angulares estarem em uma faixa ainda mais preferencialmente entre 173° e 170°.
- 12Aparelho de obturação mecânica, de acordo com a reivindicação 1, caracterizado pelo fato de as referidas peças de cunhas laterais (8), que trabalham simultaneamente com a peça central (6) no primeiro e no segundo momento de obturação mecânica, serem conformadas por cortes angulares verticais de extremidade a extremidade em seus lados interiores e manterem sua curvatura na totalidade de seus lados externos, suas extremidades, superiores serem planas, enquanto suas extremidades inferiores terminam em ponto, da mesma forma, canaletas guias fêmeas (9) localizadas em ambos os cortes angulares, dispostas na parte central verticalmente, próximas de suas extremidades, onde se introduzem as guias macho (7), localizadas externamente nos cortes angulares da peça central (6) , dispostas na parte 4/4 central verticalmente, próximo de suas extremidades, permitindo que as peças de cunhas laterais (8) deslizem contra a peça central (6) .
- 13Aparelho de obturação mecânica, de acordo com a reivindicação 12, caracterizado pelo fato de os cortes angulares verticais de extremidade a extremidade dos lados internos das peças de cunhas laterais (8) estarem em uma faixa entre 5° e 16°.
- 14Aparelho de obturação mecânica, de acordo com a reivindicação 13, caracterizado pelo fato de os referidos cortes angulares estarem em uma faixa mais preferencialmente entre 6° e 12°.
- 15Aparelho de obturação mecânica, de acordo com a reivindicação 14, caracterizado pelo fato de os referidos cortes angulares estarem em uma faixa mais preferencialmente entre 7° e 10°.
- 16Aparelho de obturação mecânica, de acordo com qualquer uma das reivindicações anteriores 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 ou 15, caracterizado pelo fato de sua fabricação ser uma base de polímeros em geral e misturas com polímeros, como, por exemplo:misturas de polímeros com areias com silício, aluminossilicatos, cromita, magnésio, quartzo, zircônio, areias sintéticas refratarias, entre outras areias, bem como concretos e argamassas refratarias em geral, e misturas com cimentos refratários, cimento Portland, cimentos alternativos, biocimentos.
- 17Aparelho de obturação mecânica, de acordo com a reivindicação 16, caracterizado pelo fato de os referidos polímeros poderem ser selecionados dentre polietileno, poliuretano, polipropileno, poliestireno. ι/5 FIGURA 1 FIGURA 2 2/5 FIGURA 3 FIGURA 4 3/5 4/5 5/5 FIGURA 9 %-OyO 2 Ο APARELHO DE OBTURAÇÃO MECÂNICA, PARA DINAMITAÇÕES MINEIRAS PARA CONTENÇÃO OU CONFINAMENTO DOS GASES GERADOS PELOS EXPLOSIVOS, IMPEDINDO-SE QUE A ENÈRGIA GERADA SEJA LIBERADA PARA A ATMOSFERA 5 Esta invenção divulga um aparelho para a obturação de furos ou poços mecânicos em dinamitações mineiras, com o objetivo de conter ou confinar os gases gerados por explosivos, impedindo que a energia gerada pelos explosivos seja liberada para a atmosfera. Uma montagem do aparelho de 10 obturação mecânica para dinamitações mineiras de acordo com a presente invenção é composta por duas peças, uma sobre a outra:uma peça base (1), e uma peça central (6) e inclui, adicionalmente, duas peças de cunhas laterais (8) e quatro pivôs de fixação (11). O aparelho de obturação mecânica, de 15 acordo com a presente invenção, e o conjunto completo do referido aparelho se conformam a um corpo cilíndrico, com um diâmetro menor do que o da perfuração e com um comprimento diretamente proporcional ao diâmetro e à profundidade dos furos ou poços.
Independent claims17
86 paragraphs in 8 sections, as filed
(54) Title: MECHANICAL FILLING APPLIANCE, FOR MINING DAMAGES FOR CONTAINING OR CONFINING THE GASES GENERATED BY EXPLOSIVES, PREVENTING THAT THE GENERATED ENERGY IS RELEASED TO THE ATMOSPHERE (30) Unionist Priority: 29/03/2007 cl 870-2007 (73) Holder (s): cauchos industriales sa, luis germán
GONZÁLEZ GONZÁLEZ (72) Inventor (s): luis germán gonzález gonzález (57) Summary: mechanical filling device, for MINING DAMAGES FOR CONTAINING OR CONFINING THE GASES GENERATED BY EXPLOSIVES, PREVENTING THE GENERATED ENERGY TO BE RELEASED TO THE ATMOSPHERE This invention discloses a device for filling mechanical holes or wells in mining dynamics, with the objective to contain or confine gases generated by explosives, preventing the energy generated by explosives from being released into the atmosphere. An assembly of the mechanical filling device for dynamite mining according to the present invention consists of two parts, one on top of the other: a base part (1), and a center part (6) and additionally includes two pieces of wedges sides (8) and four fixing pivots (11). The mechanical filling device, according to the present invention, and the complete set of said device conform to a cylindrical body, with a smaller diameter than that of the perforation and with a length directly proportional to the diameter and depth of the holes or wells.
<img file="BRPI0802230A2_D0001.tif" />
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ΡΙ0802230-5
MECHANICAL FILLING APPLIANCE, FOR MINING DAMAGES FOR CONTAINING OR CONFINING GASES GENERATED BY
EXPLOSIVES, PREVENTING THE GENERATED ENERGY TO BE RELEASED
FOR THE ATMOSPHERE
DESCRIPTIVE REPORT
FIELD OF THE INVENTION
This invention discloses an apparatus for filling boreholes or mechanical wells in mining dynamites, with the aim of containing or confining the gases generated by explosives, preventing the energy generated by the explosives' being released into the atmosphere.
BACKGROUND
Dynamiting is one of the most relevant processes in mining extraction, whose fundamental objective is the fragmentation of rock, whether mineral or sterile, through the use of explosives. This is carried out in accordance with the established safety standards, operational and technical procedures that allow the entire size reduction process to be carried out safely and efficiently. In the process of detonating the rock in order to fractionate it, it is necessary to produce a containment or a confinement of the energy generated by the explosives, of which, when its expansion takes place, rupture and fractionation are achieved. For this reason, it is necessary to overcome the structural strength of the rock for its displacement.
Currently, the mining industries use soil material or the same cutting material or debris (material that surrounds each hole or well resulting from drilling) to cover the holes or wells, material used as a plug, for the purpose to confine the load
2/14 ι
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explosive. Using to cover the holes or wells with mini loaders or plug-holes (bobcat) and personnel for * those holes or wells that have difficulties to be covered with equipment, a situation that is produced '5 when the equipment cannot enter sectors with reduced spaces ; work that is performed using bronze shovels, staff taking the precaution of selecting the material mentioned above, so that it does not have rocks (stones of greater volume) in order to avoid cuts in the descending electrical lines. As in the same way, keep in mind the safety standards in these jobs. Operating systems that, in short, are inefficient and slow, thereby causing damage in terms of time and a higher operating cost in the system.
As in the same way, if any bore or well does not present any debris material to be plugged, the operator must transfer excess material from already covered boreholes or wells, taking care not to take the electrical lines of the said boreholes or wells, selecting the material and ensuring that there are no large rocks. Actions that are required of operators and helpers. The latter must assume a stable and safe position, that is, in front of the equipment in such a way as to maintain a total view of the operation. In addition, they must have a complete communication with the operator to indicate the steps to follow. Notwithstanding this, the aforementioned buffer material does not fulfill the objective of confining the explosive column, as it is completely loose inside the hole or well and does not present any opposition to the explosive energy once the detonation is produced.
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As a result of this result, the aforementioned material and the explosive energy are expelled into the atmosphere, the product of a poor confinement of the explosive, as it does not have an appropriate system for anchoring the hole or well.
It is possible to observe in a dynamite that a certain percentage of energy generated by the explosives is released into the atmosphere. And the fracture effectiveness of the rock is relative, due to the fact that the shock waves generated by the explosives are of lesser intensity than expected, not obtaining sufficient propagation of energy in the dynamite.
An important point within the extractive industry in general is the relationship with the fragmentation of the rock, since current techniques do not guarantee its good quality, due to the loss of energy that is produced by an improper confinement of the gases generated by the explosive. Other factors that affect considerably in operational and economic terms are, for example: high consumption of explosives, man hours, machine hours, wear or shorter life of machinery, equipment and accessories. Reasons that make it necessary to reduce operating costs and increase the useful life of machinery, equipment and accessories.
In order to optimize the current dynamiting system, there is a need to have a filling device that allows containing or confining the energy generated by the explosives and taking advantage of the said energy in the fragmentation of the rock, thereby allowing other technical operational aspects with less costs and increased productivity in large mining.
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TECHNICAL STATUS
Currently, mining companies in a permanent search to obtain a material or product that allows them to be used as an explosive energy retaining plug, have used gravel material, creating operational difficulties such as transporting gravel to and within the mine, increasing time when plugging holes or wells and supply problems, significant improvements are not achieved with these materials.
Another example is the plugs known on the ground as Chinese hats, a cone-shaped device designed to seal the collar or the mouth of the hole or well, with the aim of confining the energy generated by explosives. Device that in its center has a pin and a nut and that when adjusting these two elements manually, the cone expands by pressing against the walls of the well, and that, once detonation has occurred, it is expelled to the atmosphere, not getting the expected purpose.
Likewise, wet clay, air bags, epoxy resins, burnt oil from internal combustion engines, among others, and types of systems were used, which did not effectively fulfill their objective.
Currently, several patent applications try to solve one of the problems of the technique that solves the present invention, that is, the optimum confinement of gases in the boreholes or wells. For example, patent application WO 02/090873 which describes a split obturation bar that includes a first and a second wedge piece; US patent application 5,936,187 which describes a hole plug made of a durable, elastic and strong material or the
5/14 US patent application 5,247,886 which describes a plug for use in plugging a hole and includes a wedge piece and a stabilizing structure in the wedge piece.
Some of the advantages of the present invention, in comparison with the patents mentioned above are:
1. The soil or debris material no longer fulfills the buffer functions, and only a minimum amount is used as insulation material between the explosive column and the mechanical filling device, in order to avoid direct contact with high temperature generated by explosives at the moment of dynamite.
2. The use of mini loaders, stoppers (bobcat) and personnel is forbidden for those holes or wells that have difficulties to be covered with equipment; and
3. The possibility of cuts in the descending electrical lines that connect to the detonators is reduced.
BRIEF DESCRIPTION OF THE FIGURES
Figure 1 shows a front sectional view of the complete mechanical filling device according to the invention, before being assembled and used in dynamite.
Figure 2 shows an isometric view of the complete mechanical filling device according to the invention, before being assembled and used in a dynamite.
Figure 3 shows a front sectional view of the mechanical filling device assembled according to the invention, before being used in a dynamite.
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Figure 4 shows an isometric view of the mechanical filling device assembled according to the invention, before being used in a dynamite.
Figure 5 shows a frontal sectional view of the mechanical filling device in a first filling moment defined later on inside a hole or well.
Figure 6 shows an isometric view of the mechanical filling device in a first filling moment inside a hole or well.
Figure 7 shows a frontal sectional view of the mechanical filling device in a second filling moment defined later on inside a hole or well.
Figure 8 shows an isometric view of the mechanical filling device in a second filling moment inside a hole or well.
Figure 9 shows an isometric sectional view of the mechanical filling device according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION
The purpose of the invention is to cover a great need for optimization in the dynamization processes. Through the use of the mechanical filling device for mining dynamites, whose main objective is to contain or confine the gases generated by the explosives, preventing the energy generated by them from being released into the atmosphere and, consequently, optimizing the dynamization processes, incorporating unprecedented benefits in the mining industry.
With the use of the mechanical filling device, a greater added value will be created in the mining industry in the
Ί / 14 dynamization processes, in operational terms, of costs and productivity, in relation to the current state of the art.
The mechanical filling device of the present invention 5 is manufactured with polymers in general and mixtures with polymers, such as, for example: mixtures of polymers with silicon sands, aluminosilicates, chromite, magnesium, quartz, zirconium, refractory synthetic sands, among other sands , as well as refractory concretes and mortars in general, and mixtures with refractory cements, Portland cement, alternative cements, biocements, etc.
Figures 1 and 2 show the segmentation of the mechanical filling device according to the invention and Figure 9 allows to see a sectional view of said device, for clarity of the description in detail below.
As shown in figures 3 and 4, a mechanical filling device for mining dynamites assembled in accordance with the present invention consists of two parts, one on top of the other:
a) a base part (1), and
b) a center piece (6) and additionally includes two pieces of side wedges (8) and four fixing pivots (11) ·
0 complete set of the mechanical filling device, according to the present invention, conforms to a cylindrical main body (12), with a smaller diameter than the drilling and with a length directly proportional to the diameter and depth of the holes or wells. The base part
0 (1) of the main body (12) is formed by a body
8/14 cylindrical, with a smaller diameter than that of drilling and that oscillates in a range between 101.6 mm (4) and 787.4 mm (31) and, more, being the most frequent application range in sky mining between 152 mm (6) and 34 9.25 mm (13%), with a concavity at its lower end and at its upper end having a female coupling cone with four circular perforations (5) in which fixation pivots (11) (not shown in the figures) will be inserted for the union of the center piece (6) with a central circular perforation (4) from end to end, through which the electrical lines pass, drilling that will depend on the type or diameter of the electric lines that are used by each mining company in its dynamiting processes; said circular perforation l ';
center (4) will oscillate in a range between 6.35 mm (1/4) and 30 mm (1 1/5) and may include a widening (2) of larger diameter at the bottom end of the base piece (1). This base part (1) will be seen subjected to strong pressures and temperature. Reason why it will be manufactured with the raw materials described above, with a richer mixture in its dosage, such as, for example, mixtures with polymers in general and mixtures with polymers with silicon sands, aluminosilicates, chromite, magnesium, quartz, zirconium , refractory synthetic sands, among other sands, as well as refractory concretes and mortars in general, and mixtures with refractory cements, Portland cement, alternative cements, biocements, etc. In order to give you greater resistance to the effects of pressure and temperature at the moment of dynamite.
Optionally, a plug (3) built from the
9/14 same materials as the base piece (1), mentioned previously, additionally, including a central circular hole (not shown in the figures) from end to end and of a smaller diameter than the diameter of the central circular hole (4), and a groove (not shown in the figures) from the center to the edge from end to end, in order to introduce the electric lines.
The central part (6) that works simultaneously with the pieces of side wedges (8) in the first and second moments of filling the hole or well is formed by a cone with a cylindrical base, which at its lower end adopts a cylindrical shape, smaller diameter than drilling and that oscillates in a range between 101.6 mm (4) and 787.4 mm (31) and, more, being the most frequent application range in open pit mining between 152 mm (6) and 349.25 mm (13%), which, in addition, at its lower end it has a male coupling cone with four circular perforations (5), in which fixation pivots (11) will be introduced for the union of the base piece (1) and at its upper end it has a cylindrical shape with two angular cuts and the remaining two sides maintain their curvature, additionally, it has a central circular perforation (4) from end to end, through which the electric lines pass, drilling that will depend on the type or diameter of the electric lines that are used by each mining company in its dynamiting processes; said central circular perforation (4) will oscillate in a range between 6.35 mm (1/4) and 30 mm (1 1/5). Likewise, they are located in both the angular cuts of its end
10/14 upper male guides (7), located vertically in the central part, thus allowing the center piece (6) to slide against the side wedge pieces (8).
The vertical angled cuts from end to end of said center piece (6) are in a range between 175 ° and 164 °, preferably between 174 ° and 168 ° and, more preferably, between 173 ° and 170 °.
The side wedge pieces (8) that work simultaneously with the center piece (6) at the first and the second moment of filling the hole or well, are formed by vertical angular cuts from end to end on their lower sides and maintain their curvature in the the entire outer sides. Their upper ends are flat, while the lower ends end in a point, in the same way, they bring female guide channels (9) located in both angular cuts, arranged in the central part vertically, close to their ends, where the male guides are introduced ( 7), located externally in the angular cuts of the central part (6), arranged in the central part vertically, close to its ends, allowing the side wedge pieces (8) to slide against the center piece (6). In addition, rings (10) are inserted in the upper (flat) ends of the side wedge pieces (8), made of the same material as the mechanical filling device, a wave or a thin rope will pass through the wave, an element that will allow displacement of the mechanical filling device according to the present invention,. 'ή inside the hole or well.
Vertical angular cuts from end to
11/14 end of said inner sides of the side wedge pieces (8) are in a range between 5 ° and 16 ° preferably between 6 ° and 12 ° and, more preferably, between 7 ° and 10 °.
The set consisting of the parts previously described will conform to a single body, and this will be the main body of the mechanical plug (12).
Once the hole or well with its explosive charge has been prepared, the base piece (1) is assembled with the center piece (6), as shown in figures 3 and 4. Then, the main body (12) of the mechanical plug is taken, composed of the base piece (1), the center piece (6) and the two pieces of side wedges (8), for introduction through the central circular perforation (4) that runs from end to end of the base piece (1) and the center piece (6), the electrical lines that come from the detonator, located in the explosive charge. Then, the rope or thin rope is inserted into the rings (10) located on the upper flat ends of the side wedge pieces (8). Continuous act, the main body (12) of the mechanical plug is inserted into the hole or well, subjecting and slightly tensioning the electrical lines from the mouth or the collar of the hole or well, and sliding it gently downwards through the rope or thin rope, and that, once in direct contact with the detritus (insulation material), the thin strings or strings are removed, pulling them by one of their ends, and immediately after this action, as shown by the arrows in figure 5, the side wedges' 1 (8) are allowed to descend from the center piece (6), moving
12/14 through the guides (male and female), these being fixed and in direct contact with the walls of the hole or well, producing here the first moment of the mechanical filling illustrated in figures 5 and 6. Using, for this purpose, a minimum of time in the installation of the mechanical plug, in comparison with the current technique of covering the holes or wells.
The second moment of mechanical filling illustrated in figures 7 and 8 is produced by the effect of detonation and a correct confinement of the gases generated by the explosives, violently moving upwards the base piece (1) already joined with the central piece (6), without moving the side wedge pieces (8) from their position, an action that allows the center piece to press the side wedge pieces (8) against the walls of the hole or well, as indicated by the arrows in figure 7, in the same way , the side wedge pieces (8) against the center piece (6) and preventing the center piece (6) from continuing its upward path, at which time the total mechanical filling of the hole or well takes place.
Regarding the benefits of the present invention, the following stand out:
• Minimum time to install the mechanical shutter;
• Absence of personnel in the manual covering of holes or wells that present difficulties;
· Absence of mini-loaders and stoppers (bobcat), as well as their respective operators;
• Minimum amount of soil material, cut or debris as an insulating element between the explosive column and the mechanical filling device;
• Reduction in the number of perforations with the mesh
13/14 firing, preserving the same surface as the current mesh, since with the use of the mechanical shutter it is possible to increase the distance of the spacing;
• Reduction of the amount of explosive, achieving an improvement in efficiency, a product of the confinement to which the explosive is subjected;
• The shock waves generated are of expected intensity, thus obtaining sufficient energy propagation in the fracture of the rock;
• With the application of the mechanical filling system, a better control of the fragmentation of the rock to be extracted will be allowed, defining new protocols of: redesign of the firing mesh, type of explosive and profile and load factor, obtaining, from this thus, an improvement in the quality of rock fragmentation;
• Levels of smoother floors;
• Less man-hours compared to the current technique for covering holes or wells;
• Less machine hours compared to the current technique for covering holes or wells;
• Greater speed in the extraction of materials, due to a better fragmentation of the rock;
• Smaller projections of rock into space or work adjacent to dynamite (explosion);
• Less generation of gravel in dynamites, avoiding higher costs due to the concept of secondary shots (reduction of gravel) and which usually causes operational problems of loading;
• Longer bucket bucket life, avoiding the strong impacts that occur when moving the buckets.
14/14 gravel;
• Longer service life of hoppers for transport trucks, minerals and sterile materials or ballast, avoiding the strong impacts and abrasion of large rocks, both in the filling and emptying processes;
• Longer life in primary crushers, for crushing rocks of smaller size;
• Longer life of milling equipment, by grinding a much higher percentage of fine material, the product of better fragmentation of the rock;
• Fuel and electricity savings; and • Protection and care of the environment with quieter dynamics, avoiding problems of acoustic contamination, suspended powders, affecting different areas of work, workers and the community in general.
With the application of the mechanical filling device, a better development in the dynamization processes will be allowed, incorporating operational, cost and productivity benefits in the large mining industry.
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Contents8
5 members in 4 offices
Priority claims1
| Document | Office | Kind | Date |
|---|---|---|---|
| 2007000870 | Chile | A |
Members5
| Document | Office | Kind | |
|---|---|---|---|
| US2008236434A1 | United States of America | A1 | |
| AU2008201432A1 | Australia | A1 | |
| ZA200802789B | South Africa | B | |
| BRPI0802230A2This record | Brazil | A2 | |
| US7690307B2 | United States of America | B2 |
3 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]LapsedNAO APRESENTADA A GUIA DE CUMPRIMENTO DE EXIGENCIA. REFERENTE AS 3A E 4A ANUIDADES.B08K | B08K | |
| Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]REFERENTE AS 3A E 4A ANUIDADES.B08F | B08F | |
| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]B03A | B03A |
Numbers
- Application
- 8022305
Titles2
- Portuguese
- aparelho de obturaÇço mecçnica, para dinamitaÇÕes mineiras para contenÇço ou confinamento dos gases gerados pelos explosivos, impedindo-se que a energia gerada seja liberada para a atmosfera
- English
- mechanical filling device, for mining blasting to contain or contain the gases generated by explosives, preventing the energy generated from being released into the atmosphere
Classification
- CPC, 1
- F42D1/18
- IPC, 1
- E21F5 00