Title of Invention

"A DEVICE FOR MANUFACTURING AN AGRO WASTE CAKE"

Abstract

The subject invention relates to a device for manufacturing an agrowaste cake having a plurality of air passages comprising a compactor assembly, a cake air passage die having a top plate, a plurality of pins having tapering conical ends and spring loaded compacting plate with plurality of holes and support rods , a cake die for receiving the agrowaste material and an ejector assembly having a cake plate placed below base plate of said cake die , a lever and a column guide fixed firmly to the said device, to eject the agrowaste cake so manufactured from the said cake die.

Full Text

The subject invention relates to a device for manufacturing an agrowaste cake having a plurality of air passages. The embodiment of the invention resides in the circumferentially placed uniformly distributed air passages for uniform burning and maximum heat generation. The object of the invention is to produce cakes with uniform density to get uniform burning and less fuel consumption. Agricultural wastes are difficult to be handled because of their bulky and scattered nature, low thermal efficiency and copious Iiberation of smoke. The loose agro-residues made after carbonization into manageable pieces or cakes in cylindrical shape having plurality of holes gives high thermal value smokeless energy source like liquid petroleum gas. The preparation of these cakes manually with the help of a mould is known conventionally, which is very inefficient and time consuming process. The mould for the preparation of such cakes as known conventionally is a three piece body consisting of bottom plate with protruding rods, a middle cylinder to fit the bottom plate and a perforated plate to slide down along the rods into the cylinder. At the time of manufacturing such cakes, all the three parts of the mould are first assembled and the raw material is poured in it and once the cake is prepared, all the three parts of the mould are separated one by one to get the cake s@ prepared. To overcome the disadvantages like the lack of uniformity, more time consuming, lesser production rate, more fuel consumption and the like inherent in the preparation of such cake manually, the device of the subject invention have been developed. The subject agrowaste cake manufacturing device has been found to give excellent quality cakes out of agrowaste besides producing cakes efficiently with respect to increase in the number of such cakes so prepared and consuming less time for the preparation of such cakes. Moreover, the cake so prepared have been found to be easy in transportation and storage. For the production of such agrowaste cakes in the device of subject invention, the biomass is first heated at a temperature of between 248-260°C in the controlled conditions to produce char. In the char so produced is added clay in the ratio of 15-35% by weight, to form a mixture. The said mixture of char and clay is then moistened to form a semi-solid paste of uniform consistency. The said semi-solid paste is then transferred into the mould of subject device to prepare cake. These cakes are then dried. The clay used in the subject mixture acts as binder as well as energy extender. The agrowaste cake manufacturing device of the present invention is designed to manufacture compacted cakes with plurality of holes , preferably 19 holes, using the carbonized agricultural wastes mixed with moistened clay acting as binding agent. The subject device comprises a compactor assembly, a cake air passage die, a cake die and a cake ejector. The compactor assembly consist of a vertical movement rack and pinion or gear arrangement, where the pinion or gear arrangement is firmly fixed to a lever for imparting it a rotary motion. The lower end of the rack is fitted with the cake air passage die. The cake air passage die is made up of top plate and spring loaded compacting plate. The diameter of the top plate is 110-130 mm and the thickness of the top plate is 8-11 mm. The top plate is fitted with 19 pins having tapering ends of length 80-110 mm and diameter of 9-13mm. The said pins are arranged in a circle where the said pins are spaced apart from each other by 22-26mm. The spring loaded compacting plate is a circular plate having a diameter of 110-130mm and thickness of 3-5mm. The spring loaded compacting plate is provided with holes in conformity to the diameter of pins of the top plate to allow the pins of the top plate to pass through the spring loaded compacting plate. The plate is fitted with three support rods of the diameter 7-10 mm and the length of 140-155mm located on the periphery of the said plate. These support rods pass through the top plate and the springs of the plate force back to its position after the top plate is raised from cake die. The compacting plate acts as the cover on cake die to arrest the semisolid agrowaste mixture from spilling over. The compacting plate compresses the semi-solid agrowaste mixture loaded in the cake die , when the top plate moves down to form air passages in the cake. The compacting plate also acts as a retainer plate to ensure smooth withdrawal of pins from the cake after compacting the same. The cake die is a cylinder having the diameter of 130-140mm and length of 80-110 mm. The cake die is fitted on a base plate, wherein the base plate is provided with a hole of 117-120 mm concentric with the cake die to provide a collar to the cake die. The diameter of the base plate is 135-150mm. The base plate is mounted on a stand, The said collar provides the base support for the cake plate. The another important part of the said machine is the ejector assembly , which consists of a cake plate and a lever. The cake plate fits on a cylindrical support which moves up and down in a concentric column guide fixed firmly to the frame of the said machine. The vertical movement to the cake plate is provided by the lever which pushes up the bottom of the cylindrical support. The design of the cake plate conforms to the design of the compacting plate. Accordingly, the subject invention relates to a device for manufacturing an agrowaste cake having a plurality of air passages comprising a compactor assembly having means for the vertical and rotary motion of the said 5 compactor assembly, a cake air passage die having a top plate, means for the formation of air passage holes and a spring loaded compacting plate having plurality of holes and support rods, a cake die for receiving the said agrowaste material and an ejector assembly having a cake plate placed below base plate of said cake die, a lever and a column guide fixed firmly to the said device, to eject the said cake so manufactured from the said cake die. The subject invention can be best illustrated with reference to the accompanying drawings which is for illustrative purposes and should not in any way construed to restrict the scope o the invention. According to the present invention there is provided a device (1) for manufacturing an agrowaste cake having a plurality of air passages comprising a compactor assembly (2) having means such as herein described for the vertical (3) and rotary motion (4) of the said compactor assembly, a air passage die having a top plate, for the formation of air passage holes and a spring loaded compacting plate having plurality of holes and support rods, a die for receiving the said agrowaste material and an ejector assembly having a plate which is placed below base plate of said die, a lever and a column guide fixed firmly to the said device, to eject the said cake so manufactured from the said &afee die. BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS Figure 1 depicts the assembly of the device for manufacturing an agrowaste cake having a plurality of air passages. Figure 2 depicts the compactor assembly of the device. DETAILED DESCRIPTION OF THE INVENTION The subject deice (1) as shown in figure 1, for manufacturing an agrowaste cake having a plurality of air passages comprises a compactor assembly (2) having means for the vertical (3) and rotary motion (4) of the said compactor assembly (2). The compactor assembly (1) as shown in figure 2 is having a column guided rack (2) for the vertical motion and a pinion or gear arrangement (3) which is rigidly fixed to a lever and cam arrangement in the said compactor assembly (I) to provide the rotary motion. As shown in figures 1 and 2 the lower portion of the said column guided rack is fitted with the said cake air passage die. The cake air passage die (5) is having a top plate(6). means for the formation of air passage holes (7) and a spring loaded compacting plate (8) having plurality of holes and support rods (9). The said means for the formation of air passage holes (7) is a plurality of tapered pins with pointed conical end preferably 19 pins are attached to the said top plate (6). The spring loaded compacting plate (8) having plurality of holes preferably 19 holes conforming to the number and diameter of the said tapered pins (7) of the said top plate (6) of the said cake air passage die (5) to allow the said tapered pins to pass through the holes of said spring loaded compacting plate(8). The said spring loaded compacting plate (8) is supported by three support rods (9) located on the peripheries of the said spring loaded compacting plate (8). The springs of the said spring loaded compacting plate (8) is attached to the said support rods (9) to bring the spring loaded compacting plate (8) to its position after the said top plate (6) is raised from the said cake die (10). The cake die (10) is a cylindrical shape body. The base plate (11) of the said cake die (10) is provided with a hole to provide a collar to the said cake die (10). The ejector assembly (12) is having a cake plate (13) placed below base plate (11) of said cake die (10), a lever and a column guide(14) firmly to the said device (1), to eject the said cake so manufactured from the said cake die (10). The semi solid paste of agrowaste material mixed with clay is poured in the cake die (10) . The compactor assembly (2) is then pressed causing the rotary movement of the gear arrangement (4) and vertical movement of the column guided rack (3) , which pushes the cake air passage die (5) downwards. The top plate (6) of the cake air passage die (5) along with the tapered pins (7) moves downwards to pass through the holes of spring loaded compacting plate (8) for the insertion of such tapered pins (7) in the cake die (10) to form air passages in the said semisolid agrowaste material mixed with clay present in the said cake die (10). The spring loaded compacting plate (8) presses the said semi-solid agrowaste mixture and acts as the cover on cake die to arrest the semisolid agrowaste mixture from spilling over. The spring loaded compacting plate (8) compresses the semi-solid agrowaste mixture loaded in the cake die (10), when the top plate (6) moves down to form air passages in the said cake. The spring loaded compacting plate (8) also acts as a retainer plate to ensure smooth withdrawal of tapered pins (7) from the cake after compacting the same. After the formation of the air passages the top plate (6) along with tapered pins (7) and spring loaded contacting plate (8) moves back to its original uncompressed state by means of tension springs fixed on the supporting rods (9) attached to the spring loaded compacting plate (8). After the movement of cake air passage die (5) back to its original uncompressed state, the lever of the ejector assembly (12) in the column guide is pressed which exert pressure on the cake plate (13) thus ejecting the agrowaste cake having, plurality of air passages so prepared. The air passages on the agrowaste cake are circumferentially placed at equal distant from each other. The air passages are so placed to give uniform burning and thus maximum heat generation. WE CLAIMS 1. A device (1) for manufacturing an agrowaste cake having a plurality of air passages comprising a compactor assembly (2) having means such as herein described for the vertical (3) and rotary motion (4) of the said compactor assembly, an air passage die having a top plate, means such as herein described for the formation of air passage holes and a spring loaded compacting plate having plurality of holes and support rods, a die for receiving agrowaste material and an ejector assembly having a plate which is placed below base plate of said die, a lever and a column guide fixed firmly to the said device, to eject the said cake so manufactured from the said die. 2. A device as claimed in claim 1, wherein the said means for the vertical motion is in the form of a rack or a column guide in the said compactor assembly. 3. A device as claimed in claim 1, wherein the said means for imparting the rotary motion is a pinion or gear arrangement rigidly fixed to a lever and cam arrangement in the said compactor assembly. 4. A device as claimed in claim 1, wherein the said means for the formation of air passage holes (7) in the said agrowaste cake is a plurality of tapered pins attached to the said top plate (6) . 5. A device as claimed in claim 4, wherein the said, top plate is having 19 tapered pins with pointed conical ends. 6. A device as claimed in claim 1, wherein the said spring loaded compacting plate (8) is having 19 holes conforming to the number and diameter of the said tapered pins of the said top plate of the said air passage die to allow the said tapered pins to pass through the holes of said spring loaded compacting plate. 7. A device as claimed in claim 1, wherein the said spring loaded compacting plate is having three support rods located on the peripheries of the said spring loaded compacting plate. 8. A device as claimed in claim 1, wherein the said springs of the spring loaded compacting plate are attached to the said support rods to bring the spring loaded compacting plate (8) back to its original position after the said top plate is raised from the said die (10). 9. A device as claimed in claim 1, wherein the said cake die (10) is of cylindrical shape. 10. A device for manufacturing an agrowaste cake having a plurality of air passages substantially as hereinbefore described with reference to the accompanying drawings.

Documents:

940-del-1999-abstract.pdf

940-del-1999-claims.pdf

940-del-1999-correspondence-others.pdf

940-del-1999-correspondence-po.pdf

940-del-1999-description (complete).pdf

940-del-1999-drawings.pdf

940-del-1999-form-1.pdf

940-del-1999-form-19.pdf

940-del-1999-form-2.pdf

940-del-1999-form-3.pdf

940-del-1999-gpa.pdf