DE202006015235U1 - Storage device for loose material especially wooden pellets has holder with sloping base down which pellets slide to removal point and are then transported to user - Google Patents

Abstract

A storage device for loose materials, especially wooden pellets, comprises a holder for the pellets comprising a base (1) having an inclined base surface (2) on which the pellets can slide to a removal point (3) and a transporting device (5) to transport the pellets from this point to a using place. An independent claim is also included for a base for the above device.

Description

To the The purposes of heating are increasingly renewable raw materials in the form used by pellets, in particular wood pellets.

Of the rapidly growing pellets market requires in the field of pellet storage and promotion new and innovative solutions.

• • Gewebesilo, in einem Gestell aufgehängt
• • Schrägboden-Pelletslager in Holzkonstruktion

Currently, priority is given to:

• • Fabric silo, suspended in a rack
• • Slanted floor pellets warehouse in wood construction

• • Aufwendige, teure Konstruktion
• • Nur begrenzte statische und physikalische Ausführung möglich
• • Bis zu 50% Leerraum = nicht genutzte Lagerfläche unter der Lagereinheit
• • Für viele Räume nicht einsetzbar

Disadvantages of this are:

• • Elaborate, expensive construction
• • Only limited static and physical design possible
• • Up to 50% empty space = unused storage space under the storage unit
• • Not suitable for many rooms

task It is the object of the present invention to provide an improved bearing device for bulk goods.

The The object is achieved with the features of claim 1.

advantageous Embodiments are specified in the subclaims.

Further Objectives, features, advantages and applications of the present Invention will become apparent from the following description of exemplary embodiments based on the drawing. In this case, all described and / or illustrated Features for itself or in any meaningful combination the object of Invention, also independent from the summary in individual claims or their dependency.

It demonstrate:

1 a perspective view obliquely from above of the lower part of a storage device according to the invention, partly in section;

2 a perspective view obliquely from below of the lower part of a storage device according to the invention according to a further embodiment, partly in section;

3 a perspective view of the lower part of a storage device according to the invention according to a still further embodiment with six floor elements;

4 a perspective view of a frame of a storage device according to the invention;

The 1 to 3 show, inter alia, floor elements 1 for a storage facility for bulk material, in particular wood pellets.

The only partially shown storage facility for bulk material, especially for wood pellets, can only a floor element 1 (see. 1 and 2 ) or a plurality of adjacent floor elements 1 (see. 3 ) exhibit.

The storage device has a container, not shown in full, for receiving the bulk material, wherein the container has the at least one bottom element 1 has that it closes down. The wall of the container may for example be formed by a flexible material (eg a fabric bag) or a rigid wall.

The floor element 1 has a sloping bottom surface 2 , on the bulk material to a sampling point 3 can slide.

The storage device has a transport device, not shown, to the bulk material from the sampling point 3 to transport to a point of consumption

The inclined floor surface 2 may be made of plastic, in particular of an injection molded part, of sheet metal or other suitable material.

As in 2 shown, the inclined bottom surface may have the shape of an inverted pyramid.

Alternatively, the inclined bottom surface may have a round shape (cf. 1 ).

The floor elements 1 are designed as modules, with several identical floor elements 1 can be joined together (cf. 3 ).

The transport device 4 has a transport line 5 on that with with first tails 6 to the sampling points 3 the individual floor elements 1 enough. The transport line 4 can be made of metal or plastic tube, for example.

In the transport line 5 is for each sampling point each a shut-off 7 intended.

The shut-off unit 7 each has a slider 8th on. The slider 8th is controlled by a pneumatically controlled under the action of a spring 16 closing cylinder 9 actuated.

The shut-off unit 7 is designed as a vibrator for loosening the bulk material.

The transport line 5 has a tail for each sampling point 6 on.

Furthermore, a cover 11 above the sampling point 3 provided, which the container in an upper container space 12 and a lower tank space 13 divided. In the cover are recesses 14 are provided, which the passage of the bulk material from the upper container space 12 in the lower tank space 13 enable.

The cover can be like in 1 or 2 are shown cone-shaped. Alternatively, it can also be formed spherical.

The recesses 14 are on the edge of the cover 11 intended.

The cover 11 has an opening 15 on, through which the transport line 5 extends.

Furthermore, a suction device, not shown, is provided, which generates a negative pressure to the bulk material from the sampling point 3 to transport to a point of consumption.

alternative For example, a mechanical transport device, not shown, e.g. a screw conveyor be provided to the bulk material from the collection point to the point of consumption.

The container may comprise a body, not shown, of flexible material, in particular of tissue, which is in an in 4 shown frame is held.

Further Details emerge from the following description:

• • optimale Ausnutzung des Lagerraumes durch modulare Bauweise
• • Grundmodul/Bodenelement passt mit z.B. 75 × 75 cm durch übliche Heizraumtüren
• • einfach montierbar
• • Gewicht des Schüttgutes liegt auf dem Grundmodul/Bodenelement nicht auf dem Gewebesack. Daher kann das Gestell einfacher und kleiner ausgelegt werden
• • gleichmäßige Entnahme durch die sich nacheinander öffnenden Absperreinheiten
• • problemlose Anbindung an die derzeit am Markt erhältlichen Saugturbinen
• • Nutzung alter Groß-Erdtanks im Freien durch Auskleiden mit den Modulen

Advantages of the invention include:

• • optimum utilization of the storage space due to modular design
• • Basic module / floor element fits with eg 75 × 75 cm through common boiler room doors
• • easy to assemble
• • The weight of the bulk material is not on the base module / floor element on the fabric bag. Therefore, the frame can be made simpler and smaller
• • uniform removal through the successive opening shut-off units
• • easy connection to the suction turbines currently available on the market
• • Use of old large underground tanks outdoors by lining up with the modules

The Floor element may e.g. be pyramid-shaped and on a frame and / or support wedges be stored. It can be produced in various sizes (e.g. 500 × 500, 750 × 750, 1,000 × 1000 mm). But also other geometric shapes conceivable (for example, rectangular, elliptically etc.)

Just or also arcuate Sloping on allow the floor element particularly easy slipping down of the bulk material.

The Floor element may have a low height, e.g. about 300 mm. This results in a higher one usable volume compared the until now available Systems.

The Cover may have a conical or spherical shape and e.g. act as a discharge part. The transport line (e.g., suction tube) the transport device can be performed by the discharge part.

cover and floor element can be connected to each other. This is not mandatory. The pipe could also cantilevered, e.g. only with the overlying Connected pipe system.

The bulk can through recesses in the cover in the under the cover lying area (basic container) slip and lie loosely there. The static pressure of the overhead bulk material acts then only on the cover. That avoids crushing and Wedging of the bulk material. When sucking through the pipe, bulk material always slips continuously to.

At the transport line (suction pipe) is attached a sliding / shut-off. This can preferably be designed as a pneumatic cylinder. This has the advantage that no electricity or electrical appliances in the Storage facility are attached (explosion regulations). she is used in particular for blocking and / or as a vibrator for loosening of the bulk material.

The Shut-off unit can be mounted below or above the cover be. The attachment under the cover has the advantage that the Shut-off unit against damage e.g. when filling protected by the silo is.

The Transport line can be designed as a pipe system. material e.g. Plastic, metal, etc.

The Pipe connection can plugged, screwed and / or welded.

electrostatic Derivation should be provided.

Modular design allows the provision of eg 1 . 2 . 3 . 4 . 6 . 8th , etc. floor elements in row or corner.

The Modules or the individual floor elements can be directly in the storage room be interpreted, e.g. with fabric silo or already existing Tanks.

The Modules can with each other and on the frame by screwing, riveting, etc. get connected

The Invention allows the waiver of a screw conveyor. Therefore, you can also larger spatial Distances between storage facility and utility (e.g., pellet stove).

One Trituration of the pellets can be reduced or avoided. At the The worm system likes to generate disturbances.

The Storage facility can act as a self-sufficient system with its own control (PLC or PCB solution), Be formed valves and compressor. It is sufficient, though e.g. a suction turbine is connected and a start signal from Oven is coming.

The following is an example of the functionality explained:
At the pellet stove a Vorratsbhälter (not shown) with, for example, about 80 liters attached, in which a sufficient amount for about 24 hours is included. From there, the pellets are introduced via a gear chain system in the combustion chamber.

That this reservoir will - usually sufficient - once daily over one Suction system filled. The suction turbine is located at the furnace. The container is subjected to negative pressure.

controlled this will be time dependent on the oven About 10 minutes at a specific time. Because of noise as possible not in the middle of the night.

The Pellet stove controller sends a start signal to control the storage facility. Now he is running Compressor on and filled the system with air for about 2 minutes.

Everyone Pneumatic cylinder of the shut-off units is controlled by a 5/2-way valve. The cylinders of the shut-off units are double-acting, with bottom side Feather. The piston rods are spring-closing in this normal position for safety reasons and additionally extended with air. The slides thus lock the pipe from.

Now a cylinder is activated and drives back. All others are closed because of incorrect air. Even before and during the extraction process he drives by means of one clock (about 0.5-1 sec) back and forth (Shaking effect).

The Suction turbine on the stove is running now on.

To Completion of the suction process, all cylinders are extended again, the pipes are closed. The controller jumps to the next module - optionally in a row or arbitrarily.

The Control allows also the shutdown of a single module in case of failure. The Plant can be used with the other modules until she is empty.

Compressor, Control and 5/2-way valves are located outside the silo / room e.g. in a housing. At the compressor is still a pressure relief valve attached for blowing off. The air supply to the cylinder takes place through hoses, which led along the suction tube become.

Of the Compressor must e.g. not necessarily be there. It can also be an existing one with sufficient pressure and flow rate e.g. combined with a maintenance unit can be used.

Claims (23)

Storage device for bulk material, in particular for wood pellets, with a container for receiving the bulk material, wherein the container at least one bottom element ( 1 ) having an inclined bottom surface ( 2 ) has, on the bulk material to a sampling point ( 3 ) and with a transport device ( 4 ) to remove the bulk material from the sampling point ( 3 ) to a point of consumption Bearing device according to claim 1, characterized in that the inclined bottom surface ( 2 ) has a plurality of interconnected portions. Bearing device according to claim 1 or 2, characterized in that the inclined bottom surface ( 2 ) made of plastic, in particular of an injection molded part, or of sheet metal. Bearing device according to one of the preceding claims, characterized in that the inclined bottom surface ( 2 ) has the shape of an inverted pyramid. Bearing device according to one of the preceding claims, characterized characterized in that the inclined bottom surface has a round shape. Bearing device according to one of the preceding claims, characterized in that the bearing device a plurality of in particular juxtaposed floor elements ( 1 ) having. Bearing device according to one of the preceding claims, characterized in that the floor elements ( 1 ) are designed as modules so that a plurality of identical floor elements can be joined together. Bearing device according to one of the preceding claims, characterized in that the transport device ( 4 ) a transport line ( 5 ) having. Bearing device according to one of the preceding claims, characterized in that the transport line ( 5 ) with a first end piece ( 6 ) protrudes into the at least one container. Bearing device according to one of the preceding claims, characterized characterized in that the transport line comprises a metal or plastic tube. Bearing device according to one of the preceding claims, characterized in that the transport line ( 5 ) at least one shut-off unit ( 7 ) having. Bearing device according to one of the preceding claims, characterized in that the at least one shut-off unit ( 7 ) a slider ( 8th ) having. Bearing device according to one of the preceding claims, characterized in that the slide ( 8th ) by a pneumatically controlled under the action of a spring closing cylinder ( 9 ) is pressed. Bearing device according to one of the preceding claims, characterized in that the shut-off unit ( 7 ) is designed as a vibrating device for loosening the bulk material. Bearing device according to one of the preceding claims, characterized in that the transport line ( 5 ) for each sampling point one end piece ( 6 ) having. Bearing device according to one of the preceding claims, characterized in that a cover ( 11 ) above the sampling point ( 3 ) is provided, which the container in an upper container space ( 12 ) and a lower container space ( 13 ) and that in the cover ( 11 ) Recesses ( 14 ) are provided, which the passage of the bulk material from the upper container space ( 12 ) in the lower container space ( 13 ) enable. Bearing device according to one of the preceding claims, characterized in that the cover ( 11 ) is conical or spherical. Bearing device according to one of the preceding claims, characterized in that the recesses ( 14 ) at the edge of the cover ( 11 ) are provided. Bearing device according to one of the preceding claims, characterized in that the cover ( 11 ) an opening ( 15 ), through which transport line ( 5 ). Bearing device according to one of the preceding claims, characterized in that a suction device is provided which generates a negative pressure to the bulk material from the sampling point ( 3 ) to the point of consumption. Bearing device according to one of the preceding claims, characterized in that a mechanical transport device, such as a screw conveyor is provided to the bulk material from the sampling point ( 3 ) to the point of consumption. Bearing device according to one of the preceding claims, characterized in that the container has a wall of flexible material, in particular of tissue, in a frame ( 16 ) is held. Floor element for A storage device according to one of the preceding claims.