FR2668581A1 - Log distributor for feeding wood-fired boilers - Google Patents

Abstract

Device for feeding wood-fired boilers with logs. The invention relates to a device with variable triggering frequency, which is programmable, allowing in-line wood-fired boilers to be fed regularly and automatically, from the right or the left, with previously sized logs which are positioned on the slideways of the device. It consists of an articular support chassis (1) of a unit (3) of slideways (3) respectively inclined and closed by two shut-off flaps (40 and 41) on the same side as the channel (4) for collecting the contents from the slideways (3), of a slideway (45) receiving the contents of the collecting channel (4), and of a log lifter (46) actuated by the electric transmission system (47) allowing the logs to be lifted up from the receiving slideway (45) towards the loading slideway (27). Independently of the device, a fitting to the loading door (30) comprising a loading slideway (27) which is adjustable as well as a hatch (26) ensures access for the log into the boiler. The device according to the invention is intended for any form of central heating using wood-fired boilers.

Description

APPARATUS FOR DISPENSING BEVERAGES
The present invention relates to a pre-hearth for central heating of individual houses or other, in order to automatically supply wood boilers with logs.

 The supply of wood boilers is traditionally carried out by hand, thus mobilizing the user at any time of the day, even of the night and this, in an almost permanent concern to obtain a comfortable heat within his habitat. .

Porce is to note the irregular character of the calorific output of the traditional equipment in wood boiler.

 The need for the user to load the boiler to the maximum before leaving, causes overheating compared to the desired output. An absence of more or less long duration obliges the user to restart or even relight the boiler. Inevitably, this irregularity cannot be a source of convenience and economy.

 The device according to the invention overcomes these constraints and these drawbacks. Indeed, it ensures a regular and repetitive supply with variable, programmable trigger frequency, guaranteeing, depending on the size of the device, a heating autonomy of up to one week.

 your accompanying drawings illustrate the invention.

Figure I shows the device according to the invention (straight distributor.)
Figure 2 shows a top view of the same device without chassis equipment.

FIG. 3 represents the receiving slide of the collecting channel.

Figure 4 shows the shutters of a slide.

Figure 5 shows the log lifter.

Figure 6 shows the in-line loading slide of the boiler.

Figure 7 shows the loading slide perpendicular to the right of the boiler.

Figure 8 shows the electrical diagram of the device.

Figure 9 shows the switch back and forth from the loading slide.

 With reference to these drawings, the metal design device (fig. I) comprises a chassis (I) mounted on casters. This chassis provides the articular attachments of the slide block (2), the receiving slide (fig. 3), the log lift (fig 5), the electrical transmission system (fig. 8) and, the jack level (6).

 The slide block (2) comprises two trapezoidal frames ensuring the support of the slides (3) and of the collecting channel (4). These superimposed, parallel slides are inclined at 20 degrees relative to the collecting channel. They have respectively two shutters on the channel side (fig. 4), which have the role of retaining the contents of the slides, ensuring the reduction of force so that the vertical thrust of the wood in the collecting channel is greater than the thrust of the wood positioned in the slideway. The two shutter flaps are secured to the slideway by means of two triple flap hinges (5) fixed using the spot welding method. the slide block as a whole tilts at an angle of 20 degrees using a leveling jack (6) bringing the slides back into a horizontal position thus allowing the loading of logs with a maximum diameter dimension of twenty centimeters, fifty centimeters long.

 The leveling must be carried out with the jack and checked using the level control instrument (7), in order to reach the threshold for breaking the balance of the logs.

 The receiving slide (fig. 3) is located below the collecting channel (4). The role of this channel is to collect the logs, slides after slides, from top to bottom, while guiding them towards the receiving slide which ensures, by its inclination, the routing of the wood towards the log lift (fig. 5).

 te telescopic log lift in its central axis (8) and its guide pipes (9), comprises at its ends two gables (IO) of agricultural type mounted on keyed axes and, connected together by a chain of agricultural type ( One of the links is equipped with a support (I2) to accommodate a double claw mounting (I3) resting on the pipes. The lower pinion is actuated by means of a keyed pin, itself fitted with another pinion (I4), driven by the electrical transmission system (47). the 90 degree swivel log holder is held in the operating position by the clean cat (I5).

 The transmission system (47) protected by a sheet metal casing includes an electric motor from 440 KWX to 500 KISH (I6). The primary reduction (I7) is effected by pulleys-belt (diameter 60 X I80 mm) and the secondary (I8) by chain sprockets (type cyclo 40 X II teeth). The periodic electrical tripping is carried out using the box (19), the main element of the electrical system (fig. 8).

This includes
- a daily electric clock (20) with cumulative I5 minute time slots. A modification is necessary in order to transform the characteristic of simple switch 2 connections of the clock into time switch 3 connections type back and forth.

 - a device operating indicator lamp (22).

 - a fuse (23).

 - a device start switch (24).

This electrical system is completed outside the box by
- a safety push-button switch (25) fixed on the boiler and, bearing on the hatch (26). The purpose of this contactor is to cut the electrical supply to the distributor in the event of congestion on the loading slide.

 - a switch back and forth mounting (fig. 9) fixed on the slide which, actuated by the claw, allows the dispenser to stop, once the supply cycle is finished.

 The distributor must be connected and supplied electrically by the boiler thermostat. Otherwise, it will be necessary to provide for installation. In the event of overheating, the thermostat will cut the power to the distributor, as a safety measure.

 The independent loading slide of the distributor, is fixed on the boiler, thus ensuring the reception, the rectification and the routing of the log against the hatch of the boiler.

There are two ways to supply
- a so-called online power supply, assembly (fig. 6)
- a perpendicular power supply, mounting (fig. 7).

line feeding requires the use of the slide (27) comprising
- two notches (28) allowing the passage of the double claw which disappears after having deposited the log on the
slide.

 - the circular curve (29) of the slide ensuring the straightening to 900 of the log in its slide.

 - a flat iron frame and angle iron ensuring the rigidity of the slide under the action of the weight of the log.

The assembly is connected to the loading door (30), articulated at this point and held by the flange (31) at an angle of 30 degrees.

The perpendicular feeding according to the same process requires the use of the slide (32) for loading on the right and the identical reverse process for loading on the left with
- two notches (28), one of which is provided with a to and fro switch.

 - a shock-absorbing tablet (33) with two notches, allowing the reception and the damping of the log, from the log lift to the loading slide, this over an angle of 300 by its spring (34) and its hinges (35) .

 The design hatch (26) makes use of the boiler loading door. This one is cut beforehand in order to release an orifice of 250 X 250 mm. Given the high temperature, the interior layout of the loading door is made of thick material, preferably cast iron.

The layout includes
- A hatch (26) which closes the hearth.

It is externally assisted by an adjustable counterweight (36) thus preventing the blocking of a log at the time of its passage.

 - a hatch support frame (37) welded to the loading door, ensuring at its top, by means of a hinge, the articulation of the hatch as well as the tightness of the hearth.

 - an inner centering plate (38) which aims to position the log vertically at the hearth before it falls.

 In a range of distributor that is not restrictive in terms of capacity, a distinction must be made between the right distributor and the left distributor.

The operating principle is identical according to the two types of device, apart from the fact that one has on the right of the chassis (I), the transmission system (fig. 8), the jack control (6), the control instrument (7) and the door of the distribut in channel (39). The other has these same elements on the left of the chassis,
Be straight dispenser can be accompanied by a loading slide model in line or right perpendicular model.

 The left distributor, on the other hand, can be accompanied by a loading slide model in line or model perpendicular left.

 The choice of appliance must be defined according to the free space in the boiler room, the floor-to-ceiling height and the type of supply depending on the orientation of the boiler and the location provided for the distributor.

Under normal operating conditions, the principles of balance and operation are as follows
- imperatively cut the electrical supply to the distributor by means of the switch (24) before any intervention.

 - tilt the slide block (2) using the jack (6) to bring the slides (3) to a horizontal position.

 - open the door (39) of the collecting channel.

 - position the shutter flaps (fig. 4), namely, straighten the small flap (40) of the lower slide against the vertical uprights of the slide block (2) and fold the large flap (41) over it of the upper slide. So on, going up towards the last slide, at the top of the device.

 -complete the receiving slide (fig. 3) from the log lift to the slide block with calibrated bruchs.

 - complete the collecting channel (4) so that the logs are supported as far as possible against the shutters.

 - complete the upper half-slide of the distributor, the only slide to have only one large flap (41) for closing the lower slide.

 - close the door (39) of the collecting channel.

 - complete the other slides with their ends opposite the shutters, pushing the logs one after the other, until they reach their respective shutters.

 - reassemble the slide block using the jack (6) until the required level, approximately 200, is reached. The check is carried out using the pre-calibrated instrument (7).

 - adjust the length of the log lift by its central telescopic keyed pin (8) with the addition of agricultural type chain links if necessary.

 - check the inclination of the log lifter by modulating with the holding chain (I5).

 - adjust the position of the distributor relative to the loading slide (fig. 6 and 7) so that the double claw (I3) can be folded down through the notches (28) without hitting the slide.

 - brake the distributor with the two front castors (42) of the chassis (I).

- open the electrical box (I9)
- program the daily electric clock (20) in the box. The tripping frequency will be calculated according to the desired ambient temperature, the importance of the installation of central heating, the degree of humidity and the quality of the wood used (around 2 years of drying), manufacturer's standards. use and safety in terms of boiler.

 It is therefore up to the user, on the basis of these characteristics, to analyze the performance of his installation by manual supply to his boiler and to assess the time required between his last intervention and the new one, so that the conditions comfort and regularity are combined.

To display this split time, let's take as an example a supply frequency of two hours. It is therefore enough from the contact mark of the clock, to position four fifteen-minute periods and then, to display nothing for two hours, again to position four periods so on, until the daily clock is fully programmed.

close the electrical box (I9)
- switch on the valve by pressing the on switch (24).

 - check that the indicator lamp (22) shines.

 'Energizing the clock will cause the distributor to cycle cyclically via the electric motor (I6) causing the primary (I7) and secondary (I8) reduction.

This secondary reduction, by means of the pinion (I4) and pinions (IO) mounted on keyed axes, will actuate the chain (II) of the log lift (fig. 5), on which is fixed a double claw (I3) which , guided by the pipes (9) will come to be positioned below the receiving slide (fig. 3), pass through it by its notches (28) and, take charge of a wooden log.

 This log will be brought to the top of the log lift and, tilting on the loading slide (27), will straighten to 900 in the case of in-line feeding with the help of the circular curve (29) and then open the hatch (26) assisted by its counterweight (36), complete its slide on the centering plate (38) and fall on the hearth.

 Meanwhile, after having placed his log on the loading slide and having erased himself through the notches (28), the double claw mechanically actuated the switch (fig. 9 and 43) type goes back and forth thus stopping the distributor. The electric clock having been transformed into a time switch with 3 connections, will again command the tripping of the distributor at the end of the period displayed, this by virtue of the electrical assembly commonly called "back and forth" (fig. 8).

 The dispensing of the dispenser is carried out initially, from the receiving slide, passing through the collecting channel, to the upper half-slide. As soon as the last log in this sector has ceased to put pressure on the shutter flaps of the slide (3), under the pressure of the contents of the same slide, the small shutter (40) will push the large shutter (41) shutter. the content of this slide will therefore unwind gradually in the collecting channel until the last log has ceased to press against the shutter flaps of the lower slide causing the opening thereof and, so on .

 Be large model distributor can offer a total length Wn slides of around 15 meters. It can thus accommodate up to 8 logs per linear meter, i.e. I20 capacity logs. Taking into account a supply frequency of 2 hours, autonomy can reach Z0 days. For a frequency of one hour, the autonomy can reach 5 days. The range of devices is non-restrictive, adopting the same operating principle, regardless of the size of the device.

In terms of manufacturing, in the interests of solidity and safety, the choice of materials must be metallic. 'the glis
sieres and the collecting channel must be shaped with sheets of sheet metal a millimeter thick with flanges of eight centimeters, thus giving it its rigidity. The frames of the slide rails and the frame must be executed with square steel tube of 50 to 60 mm preferably. your articular supports equipping the chassis and other reinforcements, must be made with flat irons of 10 g 50 mm.

 For the maintenance of the device, it is advisable to periodically wax all the sliding surfaces. If there is no paraffin, preferably use a simple dry soap. your log lift bearings and the slide block joint are to be greased once a month.

 As for the supply, it is recommended to place in the distributor, logs of the same quality of selected wood so as not to cause blockage at the level of the slides and the collecting channel. your rebel logs can be manually inserted into the boiler.

NOIUUENCLA'PURE
I. Distributor frame
2. Slide blocks
3. Slide
4. Collector channel
5. Triple flap hinge
6. Leveling jack
7. Upgraded instrument
8. Telescopic central axis
9. Guide tubes 10. Agricultural type pinion II.

Agricultural type chair
I2. Double claw support
I3. Double claw 14. Transmission pinion
I5. Support chain
I6. Electric motor 17. Primary reduction
I8. Secondary gear
I9. Electric box 20. Electric clock 21. Clock switch back and forth 22. Running indicator lamp 23. Fuse 24. Running switch 25. Safety switch 26. Door 27. Line loading slide 28. Claw passage notch 29. Curve circular 30. 3I loading door. Support flange 32. Perpendicular loading slide 33. Shock absorber 34. Shock spring 35. Shock absorber hinge 36. Trap counterweight 37. Trap support 38. Centering plate 39. Collector channel holder 40. Small shutter 41. Large shutter 42. Front braked caster 43. Slide switch comes and goes 44. Shock absorber stop screw 45. Receiver slide 46. Log lift 47. Electric transmission system

Claims (9)

 I) Pre-hearth device additional to the central heating equipment of individual houses or others automatically supplying wood boilers according to the online, straight supply modes  or left, with calibrated logs. This device is characterized in that it comprises a chassis (I) with rollers (42), articular support  - a block (2) of slides (3) provided with a collecting channel (4) closed by a door (39).  - a receiving slide (45).  - a log lift (46) actuated by an electrical transmission system (47). The assembly completed independently of an assembly fixed to the loading door (30) of the boiler, comprising  - a loading slide (27 or 32) with retaining flange (31)  - A support (37) hatch (26) assisted by a counterweight (36).  - a centering plate (38).  2) Device according to claim I characterized in that the  the circuit of a log is respectively ordered as follows: slide (3) collecting channel (4), receiving slide (45), log lift, loading slide (27 or 32), boiler hearth.  3) Device according to claim I and claim 2 characterized in that the block (2) of slide (3) is tiltable by means of a jack (6) with level against using the instrument ( 7).  4) Device according to any one of the preceding claims, characterized in that the slides (3) are closed on the collecting channel side (4) by two shutters (40 and 41) shutter, fixed on these by triple- hinges. flaps (5).  5) Device according to any one of the preceding claims, characterized in that the channel (4) collecting the contents of the slides (3) opens onto the receiving slide (45) inclined towards the log lift (46).  6) Device according to claim I, claim 2 and claim 5 characterized in that the transition between the distributor and the loading slide (27 or 32) is effected using the log lift (46) telescopic in sound central axis (8) and its tubes (9) which guide a double claw (I3) fixed by the support (I2) on the agricultural type chain (II) itself actuated by two agricultural type sprockets ( I0) mounted on keyed pins. The whole being maintained by the chain (I5).  7) Device according to claim I, claim 2 and claim 6 characterized in that the loading slide (27) allows to ensure a line feeding mode with straightening of the log in its glide through the curve circular (29).  8) Device according to claim I, claim 2 and the  claim 6 characterized in that the loading slide (32) makes it possible to ensure a right or left perpendicular feeding mode with damping of the log on the loading slide by means of the shelf (33) by its spring ( 34) and its hinges (35).  9) Device according to claim I, claim 2 and claim 6 characterized in that the electric transmission system (47) comprises an electric motor (I6) ensuring a primary reduction (I7) by pulleys and belt, a secondary reduction ( B) by pinions and cyclo-type liming, the latter actuating the transmission pinion (I4) of the log lift (46).  I0) Device according to claim I, claim 2, claim 6 and claim 9 characterized in that the electric motor (I6) is controlled by an electrical assembly comprising an electrical box (I9) containing the daily electric clock (20 ) transformed into a time switch (21) back and forth type and, programmable in time bands of I5 minutes cumulative, a protective fuse (23), a running indicator lamp (22), a switch (24) for powering up of the device and, outside the case (I9), a safety contactor (25) bearing on the hatch (26) and, a switch (43) type goes and comes fixed through one of the notches (28 ) of the loading slide (27 or 32).