CN216297034U - Rice winnowing equipment - Google Patents

Abstract

The utility model discloses rice winnowing equipment, which comprises an air separator shell and a feed hopper arranged on the air separator shell, wherein a drum screen is transversely arranged in the air separator shell, a drum feed inlet and a drum discharge outlet are respectively arranged at two ends of the drum screen, the output end of the feed hopper penetrates through the air separator shell and extends into the drum feed inlet, a drum driving mechanism capable of driving the drum screen to rotate around the axis of the drum screen is arranged on the air separator shell, and a plurality of winnowing fans blowing air towards the drum screen are arranged at one end, close to the drum discharge outlet, of the air separator shell The separation effect of the empty shell is better, and the separation method is different from the single separation of the traditional equipment.

Description

Rice winnowing equipment

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of rice processing equipment, in particular to the technical field of rice winnowing equipment.

[ background of the utility model ]

Rice is a cereal crop of the genus Oryza, and the representative species is rice. The rice is native to China and India, and the rice is planted by precedents in Yangtze river basin of China seven thousand years ago. The rice is obtained by removing glume from rice, weighing brown rice, and grinding rice bran layer to obtain the final product. Approximately half of the world population uses rice as staple food. Besides being edible, the rice can also be used as industrial raw materials for brewing wine and making sugar, and the rice hulls and rice straws can be used as livestock feed. The main production areas of Chinese rice are Yangtze river basin, Zhujiang river basin and northeast region. The rice belongs to direct economic crops, the rice is staple food of Chinese residents, the planting area of the domestic rice is 2.45 hundred million mu of normal rice, and the planting area of the hybrid rice is 2 hundred million mu of hybrid rice.

The processing of rice is generally divided into three procedures of cleaning, rice hulling and rice milling. The first process step of rice is cleaning. The newly harvested rice heap is mixed with various impurities such as sand, soil, coal dust, iron nails, rice straws, weed seeds, dust and the like. If the removal is not clean in the processing process, the safe production is influenced, the rice quality is reduced, and the rice is harmful to the human health.

In contrast, chinese patent No. CN105214949B proposes a rice winnowing machine, and aims to provide a rice winnowing machine which is more convenient to use. The rice winnowing machine comprises a feed hopper, a winnowing box, a blast box, a discharge hopper, a support, a cross beam and a rice bag hook; the feed hopper is arranged at the top of the winnowing box, the bottom end of the feed hopper is communicated with the winnowing box, and a valve is arranged at the communicated position; one end of the air separation box is communicated with the blast box, and the other end of the air separation box is an air outlet; the discharge hopper is arranged at the bottom of the winnowing box, the top end of the discharge hopper is communicated with the winnowing box, and a discharge hole is formed in the bottom of the discharge hopper; the discharge hole faces one side of the bottom of the discharge hopper; the bracket is fixedly connected with the winnowing box; the cross beam is supported at the bottom of the discharge hopper, and two ends of the cross beam are respectively and fixedly connected to the bracket; the rice bag hook is arranged on the outer wall of the discharge hole of the discharge hopper. But the air classification equipment during operation of this kind of structure, the corn is placed in the feeder hopper, set up the valve through feeder hopper bottom exit, when opening the valve, the corn falls into the winnowing box, and the wind current of air-blower blows to the corn, separate debris such as dust and straw leaf in the corn and blow off from the air outlet, and the corn falls into out the hopper because gravity is great in, then the discharge gate of locating out the hopper discharges, this kind of selection by winnowing mode only carries out the selection by winnowing to the corn falls down fastly, impurity can't be blown away by the wind current of air-blower between being mingled with the corn always, the selection by winnowing is comparatively coarse, the selection by winnowing quality is poor, and the air classification equipment of this kind of structure relies on wind-force to screen completely, because grit weight is also heavier, the grit that is mingled with in the rice can't be separated by wind-force, the selection quality is poor.

[ Utility model ] content

The utility model aims to solve the problems in the prior art and provides rice winnowing equipment, wherein rice is subjected to multiple overturning and throwing winnowing, winnowing quality is better, and sand in the rice can be screened out.

In order to achieve the purpose, the utility model provides rice winnowing equipment which comprises an air separator shell and a feed hopper arranged on the air separator shell, wherein a rotary screen is transversely arranged in the air separator shell, a rotary drum feed port and a rotary drum discharge port are respectively arranged at two ends of the rotary screen, the output end of the feed hopper penetrates through the air separator shell and extends into the rotary drum feed port, a rotary drum driving mechanism capable of driving the rotary screen to rotate around the axis of the rotary screen is arranged on the air separator shell, a plurality of winnowing fans blowing towards the rotary screen are arranged at one end, close to the rotary drum discharge port, of the air separator shell, a secondary rice discharge hopper capable of being matched with the rotary drum feed port and used for receiving rice blown out from the rotary drum feed port by the winnowing fans is arranged at the position, close to the rotary drum discharge port, of the bottom of the air separator shell is provided with a secondary rice discharge hopper used for receiving water discharged from the rotary drum discharge port The rice high-quality rice discharge port, the bottom of the air separator shell is provided with a impurity collecting hopper close to the rotary screen and used for receiving impurities screened by the screen holes of the rotary screen, and the diameter of the rotary screen is gradually increased from the roller feed port end to the roller discharge port end.

Preferably, the drum driving mechanism comprises a rotating shaft coaxially arranged with the drum screen, the drum screen is fixedly connected with the rotating shaft through a plurality of fixing rods, two ends of the rotating shaft are respectively rotatably connected with the air separator shell, a driving motor used for driving the rotating shaft to rotate is arranged at one end, far away from the feeding hopper, of the air separator shell, and the driving motor is in transmission connection with the rotating shaft through a belt transmission mechanism.

Preferably, at least two dust discharge openings which can be matched with the winnowing fan are arranged on one side of the winnowing machine shell, which is close to the feed opening of the roller.

Preferably, the dust exhaust openings are sleeved with dust removal cloth bags detachably connected with the dust exhaust openings, and each dust exhaust opening is provided with a butterfly valve for opening and closing the dust exhaust opening.

Preferably, a dust discharging bending part which is gradually bent downwards is arranged between the air separator shell and the dust discharging port.

Preferably, one end of the drum screen, which is close to the feed inlet of the drum, is provided with an annular baffle plate which is bent towards the axial direction of the drum screen.

Preferably, a plurality of stirring blades for stirring rice are arranged on the inner wall of one side, close to the feeding hole of the roller, in the roller screen.

Preferably, the lower end of the impurity collecting hopper is provided with an impurity collecting tank communicated with the impurity collecting hopper, and the output end of the bottom of the impurity collecting tank is provided with a discharge valve of the impurity collecting tank.

Preferably, the side wall of the impurity collecting tank is provided with a transparent observation window for observing the internal capacity.

The utility model has the beneficial effects that: the utility model arranges a drum screen in the shell of the air separator, the screen hole of the drum screen is smaller than that of rice, the output end of a feed hopper is arranged at the feed port of a drum, an air separation fan blows air to the feed port of the drum, the rice flows to the feed port of the drum through the feed hopper and falls down, the wind power generated by the air separation fan in the falling process of the rice blows light empty shells, damaged rice and some impurities out of the feed port of the drum and falls into a secondary rice discharge hopper to be discharged, while full and heavier rice falls into the drum screen, the drum screen rotates to turn over the rice continuously, so that some empty shells, secondary rice and dust which are mixed among the rice and are not blown away in the falling process of the rice are turned over and blown out by the air separation fan, small-particle gravels and dust which are mixed among the rice fall down through the screen hole of the drum screen in the rotating process of the drum screen are collected and discharged through an impurity collection hopper, because the diameter of the drum screen is gradually increased from the feed port of the drum to the feed port, the bottom side of the drum screen is an inclined plane, rice rolls to the discharge port of the drum screen along the side of the drum screen under the action of gravity in the rotating process of the drum screen and is collected and discharged through the discharge port of the high-quality rice.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic structural view of a rice winnowing device in a front view.

FIG. 2 is a schematic sectional view of a rice winnowing device according to the present invention.

Fig. 3 is a schematic view of the cross-sectional structure a-a in fig. 2.

In the figure: 1-an air separator shell, 2-a feed hopper, 3-a rotary screen, 4-an air separation fan, 5-a rotary drum driving mechanism, 6-a dust removal cloth bag, 7-a butterfly valve, 8-an impurity collecting tank, 11-a secondary rice discharging hopper, 12-a high-quality rice discharging port, 13-an impurity collecting hopper, 14-a dust discharging turning part, 15-a dust discharging port, 31-a rotary drum feeding port, 32-a rotary drum discharging port, 33-an annular baffle, 34-a stirring blade, 51-a rotating shaft, 52-a fixed rod, 54-a driving motor, 55-a belt transmission mechanism, 81-a transparent observation window and 82-an impurity collecting tank discharging valve.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the utility model and not to limit the scope of the utility model. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the description of the present invention, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the products of the present invention are conventionally placed when used, and are merely used for convenience of describing and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1 and 2, the rice winnowing device of the present invention includes an air classifier housing 1 and a feed hopper 2 provided on the air classifier housing 1. A drum screen 3 is transversely arranged in the air separator shell 1. The two ends of the drum screen 3 are respectively provided with a drum feed port 31 and a drum discharge port 32. The output end of the feed hopper 2 extends through the air separator housing 1 into the roller feed opening 31. The air separator shell 1 is provided with a roller driving mechanism 5 which can drive the roller screen 3 to rotate around the axis of the roller screen 3. A plurality of winnowing fans 4 blowing towards the drum screen 3 are arranged at one end of the winnowing machine shell 1 close to the discharge port 32 of the drum. The bottom of the air separator shell 1 near the roller feed port 31 is provided with a secondary rice discharge hopper 11 which can be matched with the roller feed port 31 and is used for receiving rice blown out from the roller feed port 31 by the air separation fan 4. A high-quality rice outlet 12 for receiving rice discharged from the roller outlet 32 is arranged at the bottom of the air separator shell 1 close to the roller outlet 32. The bottom of the air separator shell 1 near the rotary screen 3 is provided with an impurity collecting hopper 13 for receiving impurities screened by the screen holes of the rotary screen 3. The diameter of the drum screen 3 gradually increases from the end of the drum feed port 31 to the end of the drum discharge port 32. In the embodiment, the drum screen 3 is arranged in the air separator shell 1, the sieve pores of the drum screen 3 are smaller than those of rice, the output end of the feed hopper 2 is arranged at the position of the roller feed inlet 31, the air separation fan 4 blows air to the end of the roller feed inlet 31, the rice circulates to the position of the roller feed inlet 31 through the feed hopper 2 and falls down, the air force generated by the air separation fan 4 in the falling process of the rice blows light empty shells, damaged rice and some impurities out of the roller feed inlet 31 and falls into the secondary rice discharge hopper 11 to be discharged, and full and heavy rice falls into the drum screen 3, the drum screen 3 rotates to continuously turn over the rice, so that some empty shells, secondary rice and dust which are mixed among the rice and are not blown away in the falling process of the rice are turned out and are blown out by the air separation fan 4, and in the rotating process of the drum screen 3, small-particle gravels and dust mixed among the rice fall down through the sieve pores of the drum screen 3, the rice is collected and discharged through the impurity collecting hopper 13, the diameter of the drum screen 3 is gradually increased from the end of the drum feeding port 31 to the end of the drum discharging port 32, namely, the side face of the bottom of the drum screen 3 is an inclined plane, rice rolls to the position of the drum discharging port 32 along the side face of the drum screen 3 under the action of gravity in the rotating process of the drum screen 3 and is collected and discharged through the high-quality rice discharging port 12, high-grade rice, low-grade rice, dust and sand in the rice can be separated in the screening process of the equipment, the air separation quality is better, the content of sand and lime dust in the high-grade rice after air separation is less, the equipment is convenient for subsequent processing, the air separation process is turned over for multiple times, the dust and empty shell separation effect is better, and the equipment is different from single separation of the traditional equipment in the past.

Referring to fig. 1 and 2, the drum driving mechanism 5 includes a rotating shaft 51 disposed coaxially with the drum screen 3. The drum screen 3 is fixedly connected with the rotating shaft 51 through a plurality of fixing rods 52. Both ends of the rotating shaft 51 are rotatably connected with the air separator housing 1. The air separator housing 1 is provided at its end remote from the feed hopper 2 with a drive motor 54 for driving the rotation of the rotary shaft 51. The driving motor 54 is in transmission connection with the rotating shaft 51 through a belt transmission mechanism 55. The rotary shaft 51 supports the rotary screen 3, so that the rotary screen 3 is prevented from contacting the inner wall of the air separator shell 1, and the air separator shell 1 is prevented from being abraded in the rotary process of the rotary screen 3.

Referring to fig. 1 and 2, two dust outlets 15 which can be matched with the air separation fan 4 are arranged on one side of the air separator shell 1 close to the roller feeding opening 31. Set up a plurality of dust exhaust ports 15 and carry out the dust exhaust, the dust exhaust efficiency is higher, even single dust exhaust port can't work, remaining dust exhaust port also can continue the operation, the normal operating of guarantee equipment. Each dust exhaust port 15 can be sleeved with a dust removal cloth bag, the dust containing capacity of the rice winnowing equipment can be improved through the plurality of dust removal cloth bags, and the equipment can stably run for a long time under the condition that the dust removal cloth bags are not replaced.

Referring to fig. 1 and 2, the dust exhaust port 15 is sleeved with a dust removal cloth bag 6 detachably connected with the dust exhaust port 15. Each dust exhaust port 15 is provided with a butterfly valve 7 for opening and closing the dust exhaust port 15. Set up butterfly valve 7 control dust exhaust mouth 15 switching on dust exhaust mouth 15, be convenient for change dust removal sack 6, equipment need not to shut down when changing dust removal sack 6, only need to change the 15 butterfly valves of dust exhaust mouth of dust removal sack 6 and close, can change dust removal sack 6, the structure of a plurality of dust exhaust mouths 15 can be so that under the condition that certain dust exhaust mouth 15 was closed, remaining dust exhaust mouth also can continue the operation, the normal operating of guarantee equipment, change dust removal sack 6 and need not to shut down, and efficiency is improved.

Referring to fig. 1 and 2, a dust exhaust bent part 14 which is gradually bent downwards is arranged between the air separator shell 1 and the dust exhaust port 15. The dust exhaust bent part 14 is bent downwards, so that dust and impurities flowing through the dust exhaust bent part 14 can be conveniently deposited downwards into the dust removal cloth bag, and the dust exhaust opening 15 is arranged downwards or obliquely so that the dust removal cloth bag can be conveniently opened and can be conveniently replaced.

Example two:

referring to fig. 1 and 2, in the first embodiment, an annular baffle 33 bent toward the axial direction of the drum screen 3 is disposed at one end of the drum screen 3 close to the drum feed opening 31. The annular baffle 33 is arranged for preventing the high-quality rice in the drum screen 3 from flowing out of the drum feed opening 31 along with the rotation of the drum screen 3, and the sorting quality is improved.

Referring to fig. 2 and 3, a plurality of stirring blades 34 for stirring rice are provided on an inner wall of the drum screen 3 at a side close to the drum feed opening 31. The stirring blades 34 are used for turning and throwing the rice and are matched with the winnowing fan 4, so that the winnowing is more uniform, and the winnowing quality is better.

Referring to fig. 1 and 2, the lower end of the impurity collecting hopper 13 is provided with an impurity collecting tank 8 communicating with the impurity collecting hopper 13. The output end at the bottom of the impurity collecting tank 8 is provided with an impurity collecting tank discharge valve 82. Set up impurity collection tank 8 and be convenient for collect impurity and grit from drum sieve 3 undersize, avoid these impurity and grit to scatter and pollute the selection by winnowing environment.

Referring to fig. 1 and 2, the sidewall of the impurity collecting tank 8 is provided with a transparent observation window 81 for observing the inner volume. The transparent observation window 81 is provided to facilitate observation of the internal volume of the impurity collecting tank 8.

The working process of the utility model is as follows:

during the working process of the rice winnowing equipment, rice circulates to a roller feed inlet 31 through a feed hopper 2 and falls down, light empty shells, damaged rice and some impurities are blown out from the roller feed inlet 31 by wind power generated by a winnowing fan 4 in the falling process of the rice and fall into a secondary rice discharge hopper 11 to be discharged, light impurities such as dust and the like are discharged through a dust discharge port 15 under the action of the wind power and are filtered by a dust removal cloth bag, full and heavy rice falls into a roller screen 3, the roller screen 3 rotates to continuously turn over the rice, so that some empty shells, secondary rice and dust which are mixed among the rice and are not blown away in the falling process of the rice are turned over and blown out by the winnowing fan 4, small-particle gravels and dust which are mixed among the rice fall through screen holes of the roller screen 3 in the rotating process of the roller screen 3 and are collected and discharged through an impurity collecting hopper 13, as the diameter of the drum screen 3 is gradually increased from the end of the drum feeding port 31 to the end of the drum discharging port 32, namely the bottom side of the drum screen 3 is an inclined plane, the rice rolls to the position of the drum discharging port 32 along the side of the drum screen 3 under the action of gravity in the rotation process of the drum screen 3 and is collected and discharged through the high-quality rice discharging port 12.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims (9)

1. The utility model provides a rice winnowing equipment, includes air separator casing (1) and locates feeder hopper (2) on the air separator casing (1), its characterized in that: transversely be equipped with drum sieve (3) in air separator casing (1), drum sieve (3) both ends are equipped with cylinder feed inlet (31) and cylinder discharge gate (32) respectively, feeder hopper (2) output runs through air separator casing (1) extends to in the cylinder feed inlet (31), be equipped with on air separator casing (1) and drive drum sieve (3) wind the rotatory cylinder actuating mechanism (5) of drum sieve (3) axis, the one end that is close to on air separator casing (1) cylinder discharge gate (32) is equipped with a plurality of orientations air separator (4) that drum sieve (3) blown, air separator casing (1) bottom is close to cylinder feed inlet (31) department be equipped with can with cylinder feed inlet (31) cooperation be used for accepting by air separator (4) by the inferior grade rice play hopper (11) of cylinder feed inlet (31) department blown off rice, the utility model discloses a rice screening machine, including drum discharge gate (32), drum sieve (3), air separator casing (1) bottom is close to drum discharge gate (32) department be equipped with be used for accepting by the high-quality rice discharge gate (12) of drum discharge gate (32) discharge rice, air separator casing (1) bottom is close to drum sieve (3) department is equipped with be used for accepting by impurity collection fill (13) under drum sieve (3) sieve mesh sieve, drum sieve (3) by drum feed inlet (31) end extremely drum discharge gate (32) end diameter crescent.

2. A rice winnowing apparatus according to claim 1, wherein: drum actuating mechanism (5) include with rotary shaft (51) of drum sieve (3) coaxial setting, drum sieve (3) with through a plurality of dead lever (52) fixed connection between rotary shaft (51), rotary shaft (51) both ends respectively with air separator casing (1) rotatable coupling, keep away from on air separator casing (1) the one end of feeder hopper (2) is equipped with and is used for the drive rotary shaft (51) rotatory driving motor (54), driving motor (54) with be connected through belt drive mechanism (55) transmission between rotary shaft (51).

3. A rice winnowing apparatus according to claim 1, wherein: at least two dust discharge openings (15) which can be matched with the winnowing fan (4) are arranged on one side, close to the roller feed opening (31), of the winnowing machine shell (1).

4. A rice winnowing apparatus according to claim 3, wherein: the dust exhaust port (15) is sleeved with a dust removal cloth bag (6) detachably connected with the dust exhaust port (15), and each dust exhaust port (15) is provided with a butterfly valve (7) for opening and closing the dust exhaust port (15).

5. A rice winnowing apparatus according to claim 3, wherein: a dust-discharging turning part (14) which gradually turns downwards is arranged between the air separator shell (1) and the dust-discharging opening (15).

6. A rice winnowing apparatus according to claim 1, wherein: and an annular baffle (33) bent towards the axial direction of the drum screen (3) is arranged at one end of the drum screen (3) close to the drum feed port (31).

7. A rice winnowing apparatus according to claim 1, wherein: and a plurality of stirring blades (34) for stirring rice are arranged on the inner wall of one side, close to the roller feed inlet (31), in the roller screen (3).

8. A rice winnowing apparatus according to claim 1, wherein: impurity collect fill (13) lower extreme be equipped with impurity collection jar (8) that impurity collection fill (13) communicate, impurity collection jar (8) bottom output is equipped with impurity collection jar relief valve (82).

9. A rice winnowing apparatus according to claim 8, wherein: the side wall of the impurity collecting tank (8) is provided with a transparent observation window (81) for observing the internal capacity.

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