CN115400949A - Energy-saving environment-friendly dust-removing winnowing machine - Google Patents

Abstract

The invention provides an energy-saving and environment-friendly dust-removing winnowing machine, comprising a frame, a screening mechanism installed on the frame for wind-selecting grain and a separator for collecting dust and impurities. The screening mechanism includes a screening cylinder and The screening assembly is installed in the screening cylinder to air-select the grain. The upper end of the screening assembly is connected with an air duct pipe, and is connected to the fan through the air duct pipe to suck out the dust in the screening assembly. Impurities. The fan sucks the screening assembly through the air duct, and part of the air flow in the screening assembly is introduced through the vent, and the other part is introduced from the opening at the bottom of the discharge hopper, so that there is an upward airflow in the screening assembly, thereby sending dust and impurities to the screening assembly. into the separator for screening and collection to prevent dust from escaping from the bottom of the discharge hopper. The device disperses the incoming grain through the screening component, and sucks out the dust and light impurities in the grain through negative pressure, reducing the dust in the grain and improving the working environment. The energy saving effect is achieved through the design of the circulating air duct.

Description

Energy saving and environmental protection dust removal winnowing machine

technical field

The invention relates to the technical field of grain dust removal equipment, in particular to an energy-saving and environment-friendly dust removal winnowing machine.

Background technique

At present, in agriculture, when the grain is harvested, it will be mixed with straw, soil, dust, chaff and gravel, etc. When the grain is dried, the dust and impurities on the ground will also be mixed into the grain. Impurities are screened, and light impurities such as dust and chaff are separated from the grain. Since the grain contains relatively large dust, it is easy to escape and pollute the working environment. The existing impurities are generally sucked by the suction fan, and the screening effect is not good. not ideal.

Contents of the invention

The technical problem to be solved by the present invention is to provide an energy-saving and environment-friendly dedusting winnowing machine to solve the problems raised in the above-mentioned background technology.

The technical problem solved by the present invention is realized by adopting the following technical solutions: an energy-saving and environment-friendly dust-removing air separator, including a frame, a screening mechanism installed on the frame for air-selecting grain, and a separator for collecting dust and impurities , the screening mechanism includes a screening cylinder and a screening assembly arranged in the screening cylinder to air-select the grain, the upper end of the screening assembly is connected with an air duct pipe, and is connected with the fan through the air duct pipe, so as to It is used to suck out the dust and impurities in the screening assembly. A feeding pipe is inserted on the air duct pipe. The feeding pipe is connected to the grain unloading equipment at the outer end to guide the grain into the screening assembly. The fan passes through the air supply pipe and The air inlet of the separator is connected, and the two sides of the upper end of the screening cylinder are respectively provided with an air inlet pipe and an exhaust pipe. The air inlet pipe is connected with the air outlet of the separator through the first air pipe, and the exhaust pipe is The second air duct is externally connected to the dust collector.

As a further solution of the present invention: the screening cylinder is a circular columnar structure, the upper end of the screening cylinder is equipped with a cover, and the cover is respectively provided with corresponding openings for the air duct pipe, air inlet pipe and exhaust pipe. The lower end of the screening cylinder is provided with a discharge hopper to discharge the air-selected grains.

As a further solution of the present invention: the screening assembly includes an air separation tube installed at the lower end of the cover, and a dispersing table built in the middle of the air separation tube. There is a ring-shaped vent between the cylinders, the lower end of the air separation cylinder is fixedly installed on the inner wall of the screening cylinder through the connecting plate, the upper end of the air separation cylinder is connected with the air duct pipe, and the feed pipe is installed on the upper end of the dispersing table. An annular dispersing space is provided between the platform and the wall of the air partition.

As a further solution of the present invention: the dispersing table includes a cone and a cylinder integrally arranged, the cylinder is a conical structure, the cone is installed on the upper end of the cylinder, and is used to guide the material dropped from the feed pipe. The outer end of the column is fixed with a ring-shaped hoop so that the material falls on the hoop and disperses. The lower end of the column is annularly distributed with several outriggers, which are fixed and installed in the row on the inner wall of the hopper.

As a further solution of the present invention: the upper end of the inner cavity of the air separation tube is fixed with an annular dispersing plate to disperse the grain. The grain falls from the feed pipe on the cone and guides it to the dispersing plate. The dispersing plate guides the flow to the hoop, so that the grains and grains fall and disperse sequentially in the dispersing space, so that the dust and impurities in the grains can be discharged.

As a further solution of the present invention: the dispersing plate and the hoop are respectively bent structures, and the upper end surfaces of the dispersing plate and the hoop are inclined surface structures for dispersing and guiding materials.

As a further solution of the present invention: the air supply pipe is provided with an adjustment plate for adjusting the ventilation rate, the adjustment plate is rotatably installed in the air supply pipe, and the lower end of the adjustment plate is provided with an adjustment rod to control the rotation of the adjustment plate.

As a further solution of the present invention: the separator is a cyclone dust collector, and the lower end of the separator is provided with a miscellaneous bucket.

As a further solution of the present invention: the outer ends of the screening cylinder and the separator are respectively fixed with corner joints, and are fixedly installed on the frame through the corner joints.

Compared with the prior art, the beneficial effect of the present invention is that: after the grain raw grains with straw, soil, dust, chaff, gravel and imperfect particles (brown rice, etc.) flow into the machine from the top, they are introduced into the sieve through the feed pipe In the module, the material first falls on the cone on the dispersing table, and is ejected to the dispersing plate through the cone deflector, and then is ejected to the dispersing table through the dispersing plate, ejected from the dispersing table to the surroundings, and falls into the discharge hopper below middle. Due to the multiple ejection and falling of the grain, the grain and the impurities are fully separated, the grain falls under the action of gravity, and the impurities and dust are screened out under the action of the winnowing air flow, and due to the multiple ejection of the grain, the grain is relatively dispersed. It is convenient for the airflow to take away dust and impurities, reduce the requirements for wind speed and volume, reduce the power of the fan, and realize energy saving.

The fan sucks the screening assembly through the air duct, and sends the dust and impurities into the separator for collection. The air outlet at the upper end of the separator supplies air to the screening cylinder through the first air pipe, and the air flow in the screening cylinder Part of it enters the screening assembly through the vent, and the other part is discharged to the bag filter through the second air pipe for filtration to realize wind recycling. The air flow in the separator enters the screening cylinder through the first air pipe, and merges with the negative pressure air flow of the fan through the vent to increase the wind force for blowing impurities and dust upwards, reduce the configuration of the fan power, and improve energy saving efficiency.

The separator removes the dust from the circulating air that enters through the air duct again and then discharges it, which can further reduce the emission of dust. The fan sucks the screening assembly through the air duct, and part of the air flow in the screening assembly is introduced through the vent, and the other part is introduced from the opening at the bottom of the discharge hopper, so that there is an upward airflow in the screening assembly, thereby sending dust and impurities to the screening assembly. Sieve and collect in the separator to prevent the dust from escaping from the bottom of the discharge hopper, and strengthen the suction effect on the dust and impurities in the grain. The regulating plate ensures the regulation of the pressure of all kinds of grain winnowing, so that the screening is more accurate. The device disperses the incoming grain through the screening component, and sucks out the dust and light impurities in the grain through negative pressure, reducing the dust in the grain and improving the working environment.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram 1 of the present invention;

Fig. 2 is the three-dimensional structural schematic diagram II of the present invention;

Fig. 3 is the cross-sectional structure schematic diagram of screening mechanism of the present invention;

Fig. 4 is a schematic diagram of the internal structure of the screening cylinder of the present invention;

Fig. 5 is a schematic diagram of the internal structure of the separator of the present invention;

Fig. 6 is a schematic structural diagram of the present invention;

Marks in the figure: 1. Rack; 2. Screening cylinder; 3. Separator; 4. Fan; Exhaust pipe fittings; 23, first air duct; 24, second air duct; 25, cover; 26, discharge hopper; 31, miscellaneous discharge hopper; 41, air duct pipe; 42, feed pipe; 43, air supply Tube; 51, air vent; 52, connection plate; 53, dispersion plate; 61, cone; 62, cylinder; 63, hoop; 64, outrigger.

Detailed ways

In order to make the implementation technical means, creative features, objectives and effects of the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific illustrations.

As shown in Figures 1 to 6,

The present embodiment provides an energy-saving and environment-friendly dedusting winnowing machine, comprising a frame 1, a screening mechanism installed on the frame 1 for wind selection of grain and a separator 3 for collecting dust and impurities, the screening mechanism Comprising a screening cylinder 2 and a screening assembly arranged in the screening cylinder 2 to air-select grains, the upper end of the screening assembly is connected with an air duct pipe 41, and is connected with the blower fan 4 through the air duct pipe 41 to use In order to suck out the dust and impurities in the screening assembly, the air duct pipe 41 is inserted with a feed pipe 42, the feed pipe 42 is connected to the grain unloading equipment at the outer end, and the grain is introduced into the screening assembly, and the fan 4 passes through the feeding pipe. The air duct 43 is connected to the air inlet of the separator 3, and the two sides of the upper end of the screening cylinder 2 are respectively provided with an air inlet pipe 21 and an air exhaust pipe 22, and the air inlet pipe 21 passes through the first air pipe 23 and the separator 3. The exhaust port is connected, and the exhaust pipe 22 is externally connected to the dust collector through the second air pipe 24.

Concretely, the grain enters in the screening assembly through the feeding pipe 42, and the fan 4 sucks away the dust and impurities in the screening assembly through the air duct pipe 41, and sends it into the separator 3 to filter out the dust and impurities, and the separator 3 The air outlet at the upper end is connected to the screening cylinder 2 through the first air pipe 23 to realize wind recycling, and the airflow in the separator 3 enters the screening cylinder 2 through the first air pipe 23, and passes through the air vent 51 and the fan 4 The negative pressure air flow of the air is merged together, so as to increase the wind force of blowing impurities and dust upwards, reduce the power configuration of the fan 4, and improve energy saving efficiency. The separator 3 is used to repeatedly filter the circulating air, so that the dust in the air discharged by the equipment is reduced. The air volume decreases; the second air duct 24 discharges part of the air, and filters the exhaust air through the bag filter.

In this embodiment, the screening cylinder 2 is a circular columnar structure, the upper end of the screening cylinder 2 is equipped with a cover 25, the cover 25 corresponds to the air duct 41, the air inlet pipe 21 and the exhaust pipe 22 are respectively provided with corresponding The lower end of the screening cylinder 2 is provided with a discharge hopper 26 to discharge the air-selected grains.

In the present embodiment, the screening assembly includes an air separation cylinder 5 installed at the lower end of the cover 25, and a dispersion table 6 built in the middle of the air separation cylinder 5. An annular vent 51 is arranged between the screening cylinder 2, and the lower end of the air separation cylinder 5 is fixedly installed on the inner wall of the screening cylinder 2 through a connecting plate 52, and the upper end of the air separation cylinder 5 is connected with the air duct pipe 41. The material pipe 42 is installed on the upper end of the dispersion table 6, and an annular dispersion space is arranged between the dispersion table 6 and the wall of the air-isolation cylinder 5. Specifically, the feed pipe 42 guides the material into the air separation cylinder 5, falls on the dispersion table 6, and disperses through the dispersion space between the dispersion table 6 and the separation air cylinder 5 walls, and the air duct pipe 41 passes through the fan 4 to carry out suction, to suck away the impurities and dust in the scattered grains, the first air pipe 23 supplies air to the screening cylinder 2 through the air inlet pipe 21, and part of the air volume sucked by the fan 4 passes through the air vent 51 into the screening assembly, and another part of the air volume enters from the discharge hopper 26 to prevent dust from escaping and to strengthen the suction effect of dust impurities in grains. The dispersing table 6 includes a cone 61 and a cylinder 62 which are integrally arranged. The cylinder 62 is a conical structure, and the cone is installed on the upper end of the cylinder 62 for guiding the material dropped from the feed pipe 42. The outer end of the cylinder 62 is fixedly equipped with an annular hoop 63 so that the material falls on the hoop 63 and disperses. The lower end of the cylinder 62 is annularly distributed with several legs 64, and passes through The legs 64 are fixedly mounted on the inner wall of the discharge hopper 26 . The upper end of the inner cavity of the air-separating cylinder 5 is fixedly provided with an annular dispersing plate 53 to disperse the grain, and the grain falls from the feed pipe 42 on the cone 61 and guides the flow to the dispersing plate 53. The plate 53 guides the flow to the hoop 63, so that the grains and grains fall and disperse successively in the dispersion space, so that the dust and impurities in the grains are discharged. The dispersing plate 53 and the hoop 63 are bent structures respectively, and the upper end surfaces of the dispersing plate 53 and the hoop 63 are inclined surface structures for dispersing and guiding materials.

In this embodiment, the air supply pipe 43 is provided with an adjustment plate for adjusting the ventilation rate, and the adjustment plate is rotatably installed in the air supply pipe 43 , and the lower end of the adjustment plate is provided with an adjustment rod to control the rotation of the adjustment plate.

In this embodiment, the separator 3 is a cyclone dust collector, and the lower end of the separator 3 is provided with a miscellaneous bucket 31 .

In this embodiment, corner joints 11 are fixedly installed on the outer ends of the screening cylinder 2 and the separator 3 respectively, and are fixedly installed on the frame through the corner joints 11 .

The working principle of the present invention is: after the grain raw grains with straw, soil, dust, chaff, gravel and imperfect particles (brown rice, etc.) flow into the machine from the top, they are introduced into the screening assembly through the feed pipe 42, and the materials fall first. Falling on the cone 61 on the dispersing table 6, through the cone 61 deflector ejection to the dispersing plate 53, then through the dispersing plate 53 and ejecting to the dispersing table 6, from the dispersing table 6 to the surroundings, falling into the row below In the hopper 26. Due to the multiple ejection and falling of the grain, the grain and the impurities are fully separated, the grain falls under the action of gravity, and the impurities and dust are screened out under the action of the winnowing air flow, and due to the multiple ejection of the grain, the grain is relatively dispersed. It is convenient for the airflow to take away dust and impurities, reduce the requirement on the wind speed and volume, reduce the power of the fan 4, and realize energy saving.

The fan 4 sucks the screening assembly through the air duct 41, and sends the dust and impurities into the separator 3 for collection. The air outlet at the upper end of the separator 3 supplies air to the screening cylinder 2 through the first air pipe 23. A part of the air flow in the screening cylinder 2 enters the screening assembly through the vent 51, and the other part is discharged to the bag filter through the second air pipe 24 for filtration, so as to realize wind recycling. The airflow in the separator enters the screening cylinder through the first air pipe, and merges with the negative pressure airflow of the fan through the vent, so as to increase the wind force for blowing impurities and dust upwards, reduce the configuration of the fan power, and improve energy saving efficiency.

The separator 3 removes dust from the part of the circulating air that enters through the air duct again and then discharges it, which can further reduce the emission of dust. The fan sucks the screening assembly through the air duct, and part of the air flow in the screening assembly is introduced through the vent, and the other part is introduced from the opening at the bottom of the discharge hopper, so that there is an upward airflow in the screening assembly, thereby sending dust and impurities to the screening assembly. Sieve and collect in the separator to prevent the dust from escaping from the bottom of the discharge hopper, and strengthen the suction effect on the dust and impurities in the grain. The regulating plate ensures the regulation of the pressure of all kinds of grain winnowing, so that the screening is more accurate. The device disperses the incoming grain through the screening component, and sucks out the dust and light impurities in the grain through negative pressure, reducing the dust in the grain and improving the working environment.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents. It should be noted that in this article, if there are relational terms such as first and second, etc., they are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations Any such actual relationship or order exists between. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Claims (9)

1. An energy-saving and environment-friendly dust-removing winnowing machine, comprising a frame, a screening mechanism installed on the frame for wind selection of grain and a separator for collecting dust and impurities, characterized in that: the screening mechanism includes a Cylinder and the screening assembly installed in the screening cylinder for wind selection of grain, the upper end of the screening assembly is connected with an air duct pipe, and is connected with the fan through the air duct pipe for suctioning out the screening assembly Dust and impurities in the air duct pipe is inserted with a feed pipe, the feed pipe is connected to the outer grain unloading equipment, and the grain is introduced into the screening assembly, and the fan is connected to the air inlet of the separator through the air supply pipe. The two sides of the upper end of the screening cylinder are respectively provided with an air inlet pipe and an exhaust pipe. The air inlet pipe is connected to the air outlet of the separator through the first air pipe, and the exhaust pipe is connected to the dust collector through the second air pipe. 2. The energy-saving and environment-friendly dedusting winnowing machine according to claim 1, characterized in that: the screening cylinder is a circular columnar structure, the upper end of the screening cylinder is equipped with a cover, the cover corresponds to the air duct pipe, the air inlet The pipe fittings and exhaust pipe fittings are respectively provided with corresponding openings, and the lower end of the screening cylinder is provided with a discharge hopper to discharge the air-selected grains. 3. The energy-saving and environment-friendly dust-removing winnowing machine according to claim 2, characterized in that: the screening assembly includes an air-isolation cylinder installed at the lower end of the cover, and a dispersing table built in the middle of the air-isolation cylinder, and the air-isolation The cylinder is a circular table-shaped structure, and there is an annular vent between the lower end of the air separation cylinder and the screening cylinder. The lower end of the air separation cylinder is fixed on the inner wall of the screening cylinder through a connecting plate, and the upper end of the air separation cylinder is connected with the air duct pipe. , the feed pipe is installed on the upper end of the dispersing table, and an annular dispersing space is provided between the dispersing table and the wall of the air separation cylinder. 4. The energy-saving, environment-friendly and dust-removing winnowing machine according to claim 3, characterized in that: the dispersing table includes a cone and a column integrally arranged, the column is a frustum-shaped structure, and the cone is installed on the side of the column. The upper end is used to divert and disperse the material dropped from the feeding pipe to the surroundings. The outer end of the cylinder is fixed with a ring-shaped hoop so that the material falls on the hoop and disperses. The lower end of the cylinder is distributed in a ring There are several legs, and are fixedly installed on the inner wall of the discharge hopper through the legs. 5. The energy-saving, environment-friendly and dust-removing winnowing machine according to claim 4, characterized in that: the upper end of the inner cavity of the air separation tube is fixed with an annular dispersing plate to disperse the grain, and the grain falls from the feed pipe On the cone, the flow is diverted to the dispersing plate, and then to the hoop through the dispersing plate, so that the grains and grains fall and disperse in turn in the dispersing space, so as to facilitate the discharge of dust and impurities in the grain. 6. The energy-saving and environment-friendly dedusting winnowing machine according to claim 5, characterized in that: the dispersing plate and the hoop are respectively bent structures, and the upper end faces of the dispersing plate and the hoop are inclined surface structures for dispersing Diversion material. 7. The energy-saving, environment-friendly and dust-removing winnowing machine according to claim 1, characterized in that: the air supply pipe is provided with an adjustment plate for adjusting the ventilation rate, the adjustment plate is rotatably installed in the air supply pipe, and the lower end of the adjustment plate An adjusting rod is provided to control the rotation of the adjusting plate. 8. The energy-saving and environment-friendly dust-removing winnowing machine according to claim 1, characterized in that: the separator is a cyclone-type dust collector, and the lower end of the separator is provided with a miscellaneous bucket. 9. The energy-saving and environment-friendly dust-removing winnowing machine according to claim 8, characterized in that: the outer ends of the screening cylinder and the separator are respectively fixed with corner joints, and are fixedly installed on the frame through the corner joints .

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