ES2424683A1 - Silo for storage and dosage of pulverulent products (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Silo for storage and dosing of pulverulent products. The silo is characterized in that it has a truncated-pyramidal configuration determining a deposit (1) of divergent wall towards the bottom (3), avoiding the caking of the product, preferably paprika or other flours, in such a way that the bottom (3) includes a platform formed by a plurality of augers (5) that drag the product towards a common outlet (9) where a transverse auger (7) is provided that drags the product towards an exit (8). The augers (5) are driven by a common gear motor (6) which drives gears (10) intermeshed, while the auger (7) of the product to the output (8) is driven by a gearmotor (13). (Machine-translation by Google Translate, not legally binding)

Description

Silo for storage and dosing of powdery products

5 OBJECT OF THE INVENTION

The present invention relates to a silo for storage and dosing of powdery products, preferably intended for storing and dosing paprika, and may be valid for other products or types of flour, etc.

The object of the invention is to prevent the formation of vaults that prevent the fall of the product by gravity, as well as to prevent deterioration of the product itself.

BACKGROUND OF THE INVENTION

15 The silos or deposits intended for the storage of products such as paprika, which is intended for subsequent consumption in a dosed form, for example for packaging or to participate in any industrial process, have a generally inverted trunk-conical configuration, so that its side wall converges towards a lower exit hole, where a gate or auger is located, which duly motorized drags the product

20 outwards.

Conventional silos have a number of problems and disadvantages that are discussed below:

1.- Due to the tendency of the product to cake in its lower zone, as a consequence of the convergence of

25 the side wall of the silo, vaults are formed that prevent the fall of the product by gravity, so it is necessary that one or more operators with a suitable tool remove the product to undo said vaults.

2.-In other occasions, to avoid the formation of vaults a vibration is carried out, although the effectiveness is not assured at all times, which creates problems in the dosage.

3.- Due to the inverted trunk-conical configuration of the silo, it occupies a very remarkable volume for a given capacity, volume that would be desirable to reduce to improve the use of the space available in the ship or place where it is located.

35 4.- Conventional silos have their upper part open, which corresponds to that of cargo, so that the product is subject to the surrounding environmental agents, some of which generate deterioration, as is the case with light.

40 5.- Another of the serious problems to be solved is that the dosing of products such as paprika to the grinding system is carried out with great difficulties, despite providing it with vibration systems, as stated previously, unable to work in an automated way since they need one or two people helping the material so that it can leave.

45 DESCRIPTION OF THE INVENTION

The silo that has been recommended has been conceived to solve the problems and inconveniences mentioned above, based on new characteristics that imply a structural, functional and effective improvement with respect to conventional silos.

More specifically, the silo of the invention is based on the fact that the tank adopts a quadrangular or rectangular base-pyramidal trunk configuration, that is to say that it is larger in its lower base with respect to the upper base, the latter being closed by a lid, thus achieving a tightness of the tank or silo, preventing not only the escape of dust, but preventing the product from being subjected to light as is the case with

55 conventional silos.

Another characteristic of novelty presented by the silo of the invention is that the bottom includes a platform based on spindles or screws, logically located in the area of greatest dimension that corresponds precisely to the bottom of the silo, which makes it impossible to product vault formation, since it does not have

60 possibility of support on the side walls, being of trunk-pyramidal configuration, so that the product has to rest necessarily on the bottom augers.

All the augers that establish the bottom of the silo have a simultaneous movement, which implies the dragging of the product at full load towards an endless transverse to all the previous ones and located on one of the sides, the latter being the one that causes the definitive exit of the product abroad.

5 In a variant embodiment, the silo tank can include an intermediate partition partition by establishing two independent and laterally adjacent compartments, each of which would include in its bottom the corresponding group of augers, and each group driven by respective gearmotors, there being a Unique cross-sectional product outlet.

10 Another feature is that the augers have a progressive step from less to more towards the exit part where the transverse auger is located, thereby ensuring that the augers are picking up product throughout the tank, reducing what could be considered as a Mountain effect on the product's output part.

15 It has also been foreseen that the silo can have weighing systems to control the product stored inside, being able to dose batches of equal weights.

As a consequence of the novel characteristics of the silo of the invention, it is possible to dispose of the material in an automated way, and although it is a product that leads to caking, it can be extracted from the silo or reservoir 20 without any problem.

As a consequence of the trunk-pyramidal configuration of the silo of the invention, large capacities are achieved in small spaces.

25 Likewise, being a silo closed superiorly, the emission of dust is avoided and the product is kept indoors in optimal conditions, ultimately achieving more hygienic work, greater productivity and greater storage power without any problems .

DESCRIPTION OF THE DRAWINGS

In order to complement the description that is to be carried out below and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization thereof, an integral part of said description is accompanied by a set of Drawings where, for illustrative and non-limiting purposes, the following has been represented:

Figure 1.- It shows a plan view of the silo of the invention, showing the bottom platform that constitutes the product drag augers towards a transverse auger provided on one of the sides.

Figure 2 shows a side elevation view corresponding to the longitudinal direction of the augers provided in the bottom of the silo.

Figure 3.- It shows another side elevation view, in this case on the end side of the augers that act at the bottom of the silo, and where an intermediate partition wall of the silo tank itself can be seen.

45 PREFERRED EMBODIMENT OF THE INVENTION

As can be seen in the aforementioned figures, and although the silo may have its deposit by determining a single compartment, the truth is that in the figures the tank (1) of the silo can be seen with two laterally adjacent compartments and referenced both with (1 '), determined by an intermediate partition partition (2).

50 The configuration of the tank (1) of the silo is trunk-pyramidal so that the lower base or bottom (3) is larger than the upper or load base (4), being closed to establish a tightness of the tank itself (one).

55 On that bottom (3) a platform is provided based on equal augers (5) arranged parallel to each other, and covering the bottom of both compartments (1 ') of the tank (1), as shown in the Figure 1, so that the passage of these augers (5) is progressively increasing from the initial end, where the driving geared motors (6) are provided, to the outlet end where there is an endless (7) of product collection dragged by the augers (5), and whose lateral auger (7) perpendicular to the augers (5), drag the

60 product towards an exit (8), after unloading the augers (5) in an exit zone (9) prior to the situation of the transverse auger and outlet (7).

Figure 1 shows two gearmotors (6), actuators of the auger groups (5) corresponding to both compartments (1 ') of the tank (1), so that in each case the augers of the compartments (1') they are driven by respective pinions (10).

5 The augers (5) rest on bearings (11) located on metal supports (12).

As shown in figure 2, the output auger (7) is actuated by the corresponding gearmotor (13) and by its outlet end (8) it also supports other nylon bushings (15), being seen at the exit of the augers (5) on

10 location channel (16) for the transverse auger (7) to drag and transfer the product to the exit (8).

The tank (1) rests on legs (17).

Claims (6)

1.- Silo for storage and dosing of powdery products, intended to store and dose paprika or other types of flour, where the silo itself defines a tank with anchoring feet to the ground, it is characterized in that said tank (1) of the silo It has a trunk-pyramidal configuration with a square or rectangular base, establishing a bottom (3) of greater amplitude than the upper and load base (4); it being provided that on said bottom (3) a plurality of augers (5) are mounted defining a platform for dragging the product towards an outlet channel (9) where a transverse and lateral auger (7) is provided for dragging of the proceeding product of all the augers (5) towards an outlet (8), the augers (5) being driven by a gearmotor (6), with the collaboration of pinions (10) meshed together and provided at one end of the augers ( 5). 2. Silo for storage and dosing of powder products, according to claim 1, characterized in that the passage of the augers (5) that establish the bottom platform of the tank (1) of the silo, is progressively increasing from the initial end where they are provided with the drive pinions (10) of the different augers (5) towards the opposite end where the output channel (9) is provided.  3. Silo for storage and dosing of powder products, according to claim 1, characterized in that the transverse and output auger (7) is driven by a gearmotor (13). 4. Silo for storage and dosing of powder products, according to previous claims, characterized in that the tank (1) is possible to present two compartments (1 ') determined on either side of an intermediate partition wall (2), so that each compartment (1 ') includes its corresponding group of augers (5), each group driven by the respective gearmotor (6). 5. Silo for storage and dosing of powdery products, according to previous claims, characterized in that the upper base (4) of smaller amplitude and corresponding to the loading area of the tank (1) of the silo, has a hermetic seal by means of the corresponding top. SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 201330142 SPAIN Date of submission of the application: 06.02.2013 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: See Additional Sheet  RELEVANT DOCUMENTS

Category

56 Documents cited Claims Affected

X

US 3602380 A (SPENCER GODFREY M) 31.08.1971, 1-5

paragraph 1, lines 42-45.51-54.72-75; paragraph 2, lines 18-32,44-59,68-72; paragraph 3, lines 9-16;

Figures 1-4.

TO

WO 9729330 A1 (TMO ENTERPRISES LIMITED et al.) 14.08.1997, 1.3

Figure 1.

TO

FR 2547282 A1 (GRUNDISCH MARCEL) 14.12.1984, 1.3

summary; page 1, lines 10-12,14-15; claims; figure 2.

TO

FR 2641262 A1 (FIVES CAIL BABCOCK) 06.07.1990, 1,2,5

page 1, lines 5-9; page 3, lines 6-11; page 4, lines 1-15; page 5, lines 13-15; figures.

TO

GB 257285 A (RHEINISCHE MASCHINENFABRIK GES) 24.03.1927, one

paragraph 1, lines 10-20; Figure 1.

TO

FR 2252970 A1 (BREQ BRETAGNE EQUIPEMENT) 27.06.1975, one

page 1, lines 1-7,23-28; page 2, line 7 - page 3, line 8; figures.

TO

ES 365294 A1 (TAUPIN PAUL) 16.02.1971, one

page 2, lines 1-11; page 4, line 21 - page 5, line 2; figure 3.

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims • for claims no:

Date of realization of the report 23.09.2013

Examiner R. Magro Rodríguez Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE Application number: 201330142 CLASSIFICATION OBJECT OF THE APPLICATION B65G65 / 46 (2006.01) B65D88 / 68 (2006.01) A01F25 / 20 (2006.01) Minimum documentation sought (classification system followed by classification symbols) A01F Electronic databases consulted during the search (name of the database and, if possible, terms of search used) INVENTIONS, EPODOC State of the Art Report Page 2/4  WRITTEN OPINION Application number: 201330142 Date of Written Opinion: 23.09.2013 Statement

Novelty (Art. 6.1 LP 11/1986)

Claims Claims 1-5 IF NOT

Inventive activity (Art. 8.1 LP11 / 1986)

Claims Claims 1-5 IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Opinion Base.- This opinion has been made on the basis of the patent application as published. State of the Art Report Page 3/4  WRITTEN OPINION Application number: 201330142  1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number publication date

D01

US 3602380 A (SPENCER GODFREY M) 31.08.1971

D02

WO 9729330 A1 (TMO ENTERPRISES LIMITED et al.) 08/14/1997

D03

FR 2547282 A1 (GRUNDISCH MARCEL) 14.12.1984

D04

FR 2641262 A1 (FIVES CAIL BABCOCK) 06.07.1990

 2. Statement motivated according to articles 29.6 and 29.7 of the Regulation of execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement The request object of report describes a silo, for the storage and distribution of powdery materials, which includes in its lower zone a plurality of augers that drag the product towards the common exit zone, where another transversal auger is located for the collection of the entire product The plurality of augers and the transverse auger are driven by respective motor-reducers, with the collaboration of gears pinched at the end of the augers. Based on the search performed, and taking into account the documents cited in the search report, D1 has been considered as the closest to the elaboration of this written opinion, however, the rest of the documents also serve to support and illustrate The arguments. Document D1 presents a tank with legs, for storage and dosing of the product, with a quadrangular base and with the bottom wider than the loading mouth, implemented at its base with a set of augers driven by a motor-reducer, which collaborates with the Transmission systems and corresponding gears. Additionally, the pitch of the augers increases as they approach the discharge zone. The difference between document D1 and the application, as set out in claims 1-3, lies in the existence of a transverse auger in the output channel. However, this characteristic, which is found in documents D2 and D3, is considered an obvious alternative that a person skilled in the art could contemplate, depending on the circumstances, among the possible known forms of the prior art not providing any surprising technical effect. with respect to the prior art and therefore lacking inventive activity. With respect to claims 4 and 5, relating to the compartmentalisation of the tank by means of a partition and the hermetic closing of the entrance by means of a lid, design options are considered that one skilled in the art could select without exercising inventive activity. It follows that the application, as set forth in claims 1-5 and based on the cited documents, lacks inventive activity (Art. 8.1 LP 11/1986) because it is derived in an evident way from the state of the art aforementioned. State of the Art Report Page 4/4