FR2510475A1 - DEVICE FOR MAKING STRAW BRIQUETTES - Google Patents

Abstract

DEVICE FOR AGGLOMING STRAW INTO BRIQUETTES; THIS DEVICE IS MOBILE AND IS CONSTITUTED BY A BALE UNCLOSING DEVICE 3 KNOWN IN ITSELF, WITH A BALE ADVANCE DEPENDING ON THE AGGLOMERATION CAPACITY, A DOSING DEVICE 5 WHICH IS EQUIPPED WITH A DRYING DEVICE 21, 7, AN ADDING DEVICE 20 FOR SOLID AND OR LIQUID ADDITIVES FOR PACKAGING THE STRAW, AN AGGLOMERATION PRESS 13 INCLUDING A HUMIDITY MEASURING APPARATUS 18 AND A HOSE GUIDANCE 19 AND THE INDIVIDUAL AGGREGATES ARE COUPLED WITH THEM, POINT OF VIEW OF THE TRAINING SO AS TO ENSURE A CONTINUOUS STRAW FLOW.

Description

Device for manufacturing

straw briquettes.

  The invention relates to a device for manufacturing

  quer very compact straw briquettes.

  Such devices are known in practice.

  However, all of these known devices have not been able to

  pose so far, since on the one hand they were too big and consequently were not mobile, and on the other hand they had only a low flow The reason for this low flow lies in the fact that the straw to be briquette was either too wet or too dry and therefore

  the formation of briquettes of stable shape was not practicable.

hardly possible.

  Consequently, the present invention proposes to arrange a device of the type mentioned above so as to obtain a compact unit despite a flow rate of satisfactory value. This problem is solved thanks to the fact that the device is mobile and is constituted by a device. ball loosening known per se,

  with a bale advance depending on the capacity of ag-

  glomeration, a metering device, which is provided with a drying device, an addition device for a solid and / or liquid additives for the conditioning of straw, an agglomeration press comprising a device for measuring humidity and a hose guide, and that the individual aggregates are coupled together, from a training point of view, so as to ensure a

continuous straw flow.

  Advantageously, the metering device

  consists of an oblique rising dosing strip-

  ment, a grinding device arranged upstream of this

  strip, a scraper plate provided at the end of the feed

  tion, and a toothed rotor disposed above the end

ejection tee.

10475

  According to another characteristic of the invention

  tion, the dosing strip is associated with an evacuated probe.

reading the loading status.

  An essential characteristic of the invention also resides in the fact that the drying device consists of an air guiding bolt which sends the hot air coming from the drive motor under the upper strand of the metering strip. , the band

  metering unit being breathable.

  To obtain a compact and short unit, the

  direction of transport of the ball release device

  them and the metering strip is opposite that of the

  piston press and hose guide.

  Even if the means to resolve the

  problem underlying the present invention are practi-

  only all known in themselves, only the combination

  according to the invention of these means gives the surprise effect

  which is that briquettes have a high

  almost uniform midity and that consequently, one can work with a constant remaining flow, the maintenance of the form being ensured by the conditioning of the straw. The invention will be better understood using the

  following description of a preferred embodiment

  but not limiting shown in the drawing attached to the-

what:

  Figure 1 is a side view of a device

  agglomeration tif in briquettes; and Figure 2 is a plan view of the device

shown in Figure 1.

  The reference 1 designates a vehicle chassis which can move on wheels 2 and which supports a device 3 for loosening the bales or rollers. The latter consists of two scraper conveyors 3 a and 3 b which are arranged by forming an obtuse angle between

  them so as to form a housing for a ball 3 c.

  The speed of the conveyor 3 a is lower than that of the conveyor 3 b The ball 3 c is loosened more or less quickly depending on the ratio of these two speeds Above the conveyor 3 b, the separated parts of the ball arrive in a device

  grinding 4 which, in the case of the present embodiment,

  tion, is for example in the form of two

  disc groups with blades which can be inserted

  dragged in opposite directions The crushed naille falling

  down then arrives on a dosing strip 5 re-

  amount obliquely, which is constituted by a chain with scrapers below the upper strand of which is disposed a grid 9, and on which the crushed straw is driven to the ejection end A scraper plate 4 a, provided behind the device 4 in the direction of transport, equalizes the crushed straw ejected on the dosing strip 5 To obtain that the same quantity is ejected per unit of time by the dosing strip 5, a rotor is associated with the ejection end with teeth 6 which rotates at a constant value speed in a clockwise direction, and returns all the straw brought too much by the metering strip 5 thereon Such a quantity control

  ejection is naturally only possible in a

  ble measurement Consequently, if the metering strip receives too much straw, this is determined by a probe 5 a and the speed of the bale loosening device 3 is reduced, by appropriate means, until the accumulation of straw is gone under the end

  for ejecting the metering strip 5 is arranged a

  crumb 10 into which the crushed straw falls The straw is then brought, by a collecting worm He

  provided in this hopper 10, with an endless screw

  rage 12, surrounded by a casing, placed under the hopper 10, which advances the crushed straw into the pressing space of a piston agglomerate pad 13 so

  known, the straw is then pressed, and therefore strong-

  compacted in the pressing die 17 by the

  piston 14 driven by the rod control 15, the ma-

  pressing trice 17 consisting of two half-co-

  skittles adjustable with respect to each other to be able to adjust the pressing pressure Following the Dressing die 17 is disposed a hose guide 19 in which the briquette bead 16 is cooled

  and takes its final form As we see on the fig-

  res 1 and 2, the hose guide 19 comprises, immediately

  behind the pressing die 17, a humidity measuring device 18 which measures the degree of humidity of the bead of briquettes In the case where the measured humidity is too high at this point, the moisture content of the straw is reduced during transport on the

  dosing strip by sending the heat generated from below

  gée by the drive motor 21 through the grid 9 and the straw located on the metering strip 5 For this purpose, the motor 21 is partially surrounded by a housing 7 for air guide which has lateral openings 8 of air outlet from which the hot air is sent between the upper and lower strands of the dosing strip In the event that the straw is too dry, it can be moistened by means of an additive 20 which is mounted above the hopper 10 This addition device 20 also makes it possible to add

  binders or other substances, even solid, for the con-

  straw addition With regard to the screw without

  end of manifold 11 mounted in the hopper 10, it is necessary to

  core say that its drive can be reversed under the control of a switch determining the pressure of the worm, so that in the case of a pressure

  too large, the crushed straw is momentarily re-

  thrown outside by an opening (not shown)

  swapped in the hopper 10, instead of being brought to the stuffing worm 12 As can be seen in particular from FIG. 2, the device according to the invention is arranged so as to obtain a relatively constructed mode of construction short of the fact that the direction of transport of the straw is reversed, i.e. while, from the bale loosening device 3 to the belt

  metering 5, the straw is transported in the direction of a-

  The chassis 1 can be moved by means of the wheels 2, the piston sinter press works in

the opposite direction.

  As it goes without saying, and as it results from

  their already from the above, the invention is not limited

  in no way to those of its embodiments and applications

  cation which have been more particularly envisaged; she in

  embraces, on the contrary, all variants.

Claims (5)

  1 Device for manufacturing very compact straw briquettes, characterized in that it is mobile and consists of a device (3) for loosening bales known per se, with a bale advance depending on the agglomeration capacity, a device   dosage, which is provided with a drying device, a   positive addition (20) for solid and / or liquid additives for conditioning straw, an agglomeration press (13) comprising a humidity measuring device (18) and a hose guide (19), and that the individual aggregates are coupled together, from a training point of view, so as to ensure a flow continuous straw.   2 Device according to claim 1, charac-   terized in that the metering device is constituted by a metering band (5) rising obliquely, a grinding device (4) disposed upstream of this band   (5), a scraper plate (4 a) provided at the end of the   mentation, and a tooth rotor (6) disposed above the ejection end.   3 Device according to claim 2, charac-   terized in that the dosing strip (5) is associated with a   feeler (5 a) evaluating the loading state.   4 Device according to any one of the re-   vendications 1 to 3, characterized in that the drying device consists of an air guide box   (7) which sends hot air from the drive motor   nement (21) under the upper strand of the dosing strip   (5), the metering strip being permeable to air.   Device according to any one of Claims 1 to 4, characterized in that, in order to obtain a compact and short unit, the direction of transport of the device for loosening the bales (3) and the dosing strip (5) is opposite to that of the piston press (13) and the hose guide (19).