The present invention relates to a method and a system for treating agricultural
5 waste, particularly stubble after harvesting the crop. In addition, the present
invention relates to a technique of burning waste material in a combustor and
simultaneously converting the smoke and ash obtained into nontoxic form. In this
specification, waste is used to include agricultural waste and municipal waste such
as paper and waste plastic, and biomass-based industrial waste such as stubble,
10 wood chips and waste pulp.
Background of invention
India is the second largest agro-based economy with year-round crop cultivation, it
generates a large amount of agricultural waste, including crop residues.
Burning of crop remains emits trace gases like carbon dioxide, methane, carbon
15 monoxide, nitrogen oxide, sulphur oxide and large amount of particulate matters,
which adversely affect human health as well as the environment.
As more farmers are nowadays using machanised agriculture, a significant amount
of straw remains in the field by harvesting rice using a combine harvester.
Patent application no. CN109140469A discloses a kind of straw burning
20 machine.The machine including main body, inlet box, connecting tube, supporting
plate, ash storage box and four brackets, it further include disintegrating mechanism
and regulating mechanism, the regulating mechanism includes first motor, roller,
driving wheel, transmission shaft, adjust component, fixed block and several
flabellums, the disintegrating mechanism includes transmission component, mixing
25 component and two shredder assemblies, the shredder assemblies include the
second motor, driving wheel, connecting rod, sliding block, link block and
sawtooth, the straw burning machine that work efficiency is high passes through
3
regulating mechanism, the adjustable intracorporal air inflow of master, enabling to
lead intracorporal stalk adequately to be burnt, pass through disintegrating
mechanism, it can be with crushing straw, stalk is adequately burnt, improve
efficiency of combustion.
5 Another patent application no. CN109084307A discloses a kind of environmentfriendly type straw burning machine with anti-blockage function, including drying
box, main body, stored ash box and four brackets, it further include drying
mechanism and dredging mechanism, the drying mechanism includes mixing
component, baffle and wobble component, the mixing component includes first
10 motor, shaft, sliding block, lifting unit and two agitating units, the agitating unit
includes agitating shaft and several stirring sheets, the dredging mechanism
includes reciprocating member and two vibration boxes, dredging component is
equipped in the vibration box, the dredging component includes the second motor,
eccentric wheel, jolting plate, spring, vibration rod and lantern ring, the
15 environment-friendly type straw burning machine with anti-blockage function
passes through drying mechanism, moist stalk can uniformly be dried, pass through
dredging mechanism, strainer can be dredged, the clast blocking strainer for
avoiding burning from generating, influence straw Stalk ash is collected by
strainer.
20 Further, the utility model with application no. CN205430924U, 2015, discloses
a burn straw machine of fostering and apply fertilizer. Another patent application
no.JP2000283433A, 2000, also discloses a method and system for treating waste.
Patent application no. RU2505588C2, 2014, discloses a method and apparatus for
producing heat energy from biomass.
25 Present invention provides an easy to operate machine for small farmers to burn
agricultural waste.
Objectives of the invention
The main objective of the invention is to provide a machine that provides means to
burn agricultural waste.
4
Another objective of the invention is to provide a stubble burning machine.
Another objective of the present invention is to provide a machine that provides
means to burn garbage.
Summary of the invention
5 Accordingly present invention provides a machine for burning waste material after
crop harvest comprising a feeder chamber (101); a combustion chamber (201) a
smoke collector (301); ash collector (401); trolley (501);
wherein, the feeder chamber comprises of a cutter (102), a shredder (102), a
conveyor belt (103), a chain (104) configured with two chain wheels (105);
10 the combustion chamber comprises of a compartment to burn the waste material
with fire , an air blower (202) is configured at the top of the combustion
chamber(201), another air blower (203) is configured at the bottom of the
combustion chamber, a gas cylinder(204);
combustion chamber is connected to the smoke collector(301) on one side and to
15 the ash collector(401) on the other side;
the smoke collector (301) comprises of a collector chamber (302), a duct (303), a
water tank (304), a water pump (305), plurality of water sprinklers (306);
the ash collector(401) comprises of a crusher (402) and a sieve plate (403);
the assembly of abovementioned components is mounted on a trolley (501) wherein
20 the trolley (501) comprises plurality of wheels (502) carrying a means (503)to hold
abovesaid assembly.
In an embodiment of the present invention the machine is connected to the tractor
with the help of PTO shaft.
In an embodiment of present invention the machine operates in following manner:
5
As the tractor moves the machine starts to cut the stubble in the field, stubble is then
shredded and carried on the conveyor belt wherein the chain wheels(105) are in
communication with the conveyor belt (104) so that the waste material on the
conveyor belt (104) is carried into the feeder chamber; the combustion chamber is
5 at about 3 feet height from the ground; lifting the waste material into the combustion
chamber (201) via the conveyor belt that is in communication with the chamber
chain and chamber wheels; burning the waste material in the combustion chamber
(201) wherein the straw is burnt to ashes and the smoke formed is collected in the
smoke collector (301); passing the smoke through the smoke collector chamber
10 wherein the smoke collector chamber consisting of a duct integrated with the water
sprinklers; passing the smoke under the water showers from water sprinklers
wherein most of the smoke constituents get dissolved in water and may be sprayed
on the field.
Brief description of drawings:
15 Figure 1, machine for burning waste material: a feeder chamber (101); a
combustion chamber (201) a smoke collector (301); ash collector (401); trolley
(501);
the feeder chamber comprises of a cutter (102), a shredder (103), a conveyor belt
(104), a chain (105) configured with two chain wheels (106);
20 the combustion chamber comprises of a compartment to burn the waste material
with fire , an air blower (202) is configured at the top of the combustion
chamber(201), another air blower (203) is configured at the bottom of the
combustion chamber, a gas cylinder(204);
combustion chamber is connected to the smoke collector(301) on one side and to
25 the ash collector(401) on the other side;
the smoke collector (301) comprises of a collector chamber (302), a duct (303), a
water tank (304), a water pump (305), plurality of water sprinklers (306);
the ash collector(401) comprises of a crusher (402) and a sieve plate (403);
6
the assembly of abovementioned components is mounted on a trolley (501) wherein
the trolley (501) comprises plurality of wheels (502) carrying a means (503) to hold
abovesaid assembly.
5 Detailed Description
While the present invention is described herein by way of example using
embodiments and illustrative drawings, those skilled in the art will recognize that
the invention is not limited to the embodiments of drawing or drawings described,
and are not intended to represent the scale of the various components. Further, some
10 components that may form a part of the invention may not be illustrated in certain
figures, for ease of illustration, and such omissions do not limit the embodiments
outlined in any way. It should be understood that the drawings and detailed
description thereto are not intended to limit the invention to the particular form
disclosed, but on the contrary, the invention is to cover all modifications,
15 equivalents, and alternatives falling within the scope of the present invention as
defined by the appended claim. As used throughout this description, the word "may"
is used in a permissive sense (i.e. meaning having the potential to), rather than the
mandatory sense, (i.e. meaning must). Further, the words "a" or "an" mean "at least
one” and the word “plurality” means “one or more” unless otherwise mentioned.
20 Furthermore, the terminology and phraseology used herein is solely used for
descriptive purposes and should not be construed as limiting in scope. Language
such as "including," "comprising," "having," "containing," or "involving," and
variations thereof, is intended to be broad and encompass the subject matter listed
thereafter, equivalents, and additional subject matter not recited, and is not intended
25 to exclude other additives, components, integers or steps. Likewise, the term
"comprising" is considered synonymous with the terms "including" or "containing"
for applicable legal purposes. Any discussion of documents, acts, materials,
devices, articles and the like is included in the specification solely for the purpose
of providing a context for the present invention. It is not suggested or represented
7
that any or all of these matters form part of the prior art base or were common
general knowledge in the field relevant to the present invention.
The present invention is described hereinafter by various embodiments with
5 reference to the accompanying drawing, wherein reference numerals used in the
accompanying drawing correspond to the like elements throughout the description.
This invention may, however, be embodied in many different forms and should not
be construed as limited to the embodiment set forth herein. Rather, the embodiment
is provided so that this disclosure will be thorough and complete and will fully
10 convey the scope of the invention to those skilled in the art.
In the following detailed description, numeric values and ranges are provided for
various aspects of the implementations described. These values and ranges are to
be treated as examples only, and are not intended to limit the scope of the claims.
15 In addition, a number of materials are identified as suitable for various facets of the
implementations. These materials are to be treated as exemplary, and are not
intended to limit the scope of the invention.
Accordingly, the present invention will be explained now with reference to the
20 drawings, in an embodiment, with reference to the drawings and more specifically
to Figure 1, the machine for burning waste material comprises of a feeder chamber
(101); a combustion chamber (201) a smoke collector (301); ash collector (401);
trolley (501);
wherein, the feeder chamber comprises of a cutter (102), a shredder (103), a
25 conveyor belt (104), a chain (105) configured with two chain wheels (106);
the combustion chamber comprises of a compartment to burn the waste material
with fire , an air blower (202) is configured at the top of the combustion
chamber(201), another air blower (203) is configured at the bottom of the
combustion chamber, a gas cylinder(204);
8
combustion chamber is connected to the smoke collector(301) on one side and to
the ash collector(401) on the other side;
the smoke collector (301) comprises of a collector chamber (302), a duct (303), a
water tank (304), a water pump (305), plurality of water sprinklers (306);
5 the ash collector(401) comprises of a crusher (402) and a sieve plate (403);
the assembly of abovementioned components is mounted on a trolley (501) wherein
the trolley (501) comprises plurality of wheels (502) carrying a means (503)to hold
abovesaid assembly.
In an embodiment of the present invention the machine is connected to the tractor
10 with the help of PTO shaft.
In an embodiment of the present invention as the tractor moves the machine starts
operating.
In an embodiment the said integrated stubble burning machine cuts the stubble from
the field and shred it into small pieces which are lifted to a height of about 3 feet
15 and transferred into the combustion chamber. The conveyor belt is in
communication with the chamber chain and chamber wheels.
In another embodiment the waste material is allowed to pass through the
combustion chamber under the air flow to prevent back fire of the waste material
outside the combustion chamber.
20 Yet in another embodiment from the feeder chamber, the stubble is carried into the
combustion chamber wherein the stubble is burnt to ashes and the smoke formed is
collected in the smoke chamber.
Very little amount of fuel is required for initial ignition , later on the waste material
itself act like combusting material and burn to ashes. To prevent fire to blow out
25 air flow is maintained with the help of air blower for continuing the burning process.
9
In another embodiment the smoke passes through the smoke collector chamber
wherein the smoke collector chamber consisting of a duct integrated with the water
sprinklers, the smoke is passed under the water showers from water sprinklers.
Most of the smoke constituents get dissolved in water and may be sprayed on the
5 field.
In another embodiment of present invention the ashes collected in the ash chamber
is passed through the crusher wherein any wooden piece or coal are powdered. The
powdered ash obtained is spread into the field.
The following examples are given by way of illustration of the working of the
10 invention in actual practice and should not be construed to limit the scope of
the present invention in any way.
Example 1: Burning Stubble after rice harvesting
The said stubble burning machine was used to burn stubble in the field after rice
15 harvesting. The machine is attached to the tractor and as tractor moves in the field
the machine cuts the stubble in the field, the cut stubble is shredded and lifted into
the furnace. The straw is burnt and smoke passes through smoke chimney under
high pressure water shower. Smoke eliminates in the form of water drops, falls on
the ground. The burnt remains are collected in ash chamber, crushed and sieved ash
20 powder falls on the ground that never spoils the field. Combustion chamber used
LPG for burning. With the LPG consumption of 0.5kg per hour and water consumed
being 500-600 Liters per hour, the said stubble burning machine burns 2-3 acer per
hour.
Example 2: Machine Used For Burnig City Waste Garbage
25 The said machine was used to burn city garbage. Machine lifts garbage by conveyor
belt and put it into fire box. When waste material burns it fall as wax and ash on
device (sift) which separate ash and wax by air. Wax may be collected and used
again. The waste material burns and smoke passes through smoke chimney under
10
high pressure water shower. Smoke eliminates in the form of water drops. The burnt
remains are collected in ash chamber, crushed and sieved ash powder is collected.
LPG consumption of 5kg per hour and 500-600 Ltr water required per hour.
Advantages of the Machine:
5 1. Easy to operate.
2. Single machine to cut, burn and dispose off the waste material.
3. Cost effective.
4. Compact design and easy construction.

We claim:

1. A machine for burning waste material comprising a feeder chamber (101); a
5 combustion chamber (201) a smoke collector (301); ash collector (401); trolley
(501);
wherein, the feeder chamber (101)comprises of a cutter (102), a shredder (103), a
conveyor belt (104), a chain (105) configured with two chain wheels (106);
the combustion chamber(201) comprises of a compartment to burn the waste
10 material with fire, an air blower (202) is configured at the top of the combustion
chamber(201), another air blower (203) is configured at the bottom of the
combustion chamber, a gas cylinder(204);
combustion chamber is connected to the smoke collector(301) on one side and to
the ash collector(401) on the other side;
15 the smoke collector (301) comprises of a collector chamber (302), a duct (303), a
water tank (304), a water pump (305), plurality of water sprinklers (306);
the ash collector(401) comprises of a crusher (402) and a sieve plate (403);
the assembly of abovementioned components is mounted on a trolley (501) wherein
the trolley (501) comprises plurality of wheels (502) carrying a means (503)to hold
20 abovesaid assembly.
2. The machine for burning waste material as claimed in claim 1wherein the
machine operates in following manner:
cutting and shredding the waste material into small pieces by the cutter
(102) and the shredder (103); carrying cut pieces of waste material onto the
25 conveyor belt (104) that is in communication with the chamber chain (105)
and chamber wheels (106); lifting the waste material to the combustion
12
chamber (201); burning the waste material in the combustion chamber;
collecting the ash in ash chamber (401); passing the smoke under the water
showers from water sprinklers in the smoke collector chamber dissolving
the smoke constituents into water.
5
3. The machine for burning waste material as claimed in claim 1wherein the waste
material comprises agricultural waste, domestic garbage, biomass base
industrial waste.