CN118616334A - A rice bran husk screening machine for rice processing - Google Patents

Abstract

The invention discloses a rice bran shell screening machine for rice processing, which belongs to the technical field of rice processing and comprises a horizontal frame, wherein an outer cylinder is obliquely fixed on the horizontal frame, a screening inner cylinder is coaxially arranged in the outer cylinder in a rotating way, a dust hood is sleeved outside one end of the screening inner cylinder, which extends out of the high position of the outer cylinder, a driving piece connected with the screening inner cylinder is arranged at one end of the horizontal frame, a negative pressure piece connected with the dust hood is arranged at the other end of the horizontal frame, and the dust hood is communicated with the inside of the outer cylinder through a dust suction pipe; adopt the screening inner tube that the opening is up to the rice screening, the rice husk that is broken up because the quality is lighter, and the negative pressure air current that produces can blow off lighter rice husk, makes the rice husk collect by the suction hood through the opening part of screening inner tube one end, and heavier rice because the screening inner tube is the slope setting, the rice can be in screening inner tube low position for rice and rice husk can carry out effectual separation.

Description

A rice bran husk screening machine for rice processing

Technical Field

The invention relates to the technical field of rice processing, in particular to a rice bran husk screening machine for rice processing.

Background Art

After rice matures and is harvested, it needs to be husked. Only husked rice can be sold as rice. Generally, during the rice husking process, rice is mixed with a large amount of rice bran, which seriously affects the quality of rice. The existing rice bran separation method generally uses the throwing method to separate rice and rice bran according to the weight difference between rice and rice bran. This method is time-consuming and inefficient during processing.

Prior art such as CN115283050B discloses a rice bran husk screening component and screening method for rice processing, comprising a support, a bottom plate fixed on the upper surface of the support, a shell arranged on the bottom plate, a cover plate arranged on the top of the shell, a motor 1 fixed on the cover plate, a shaft end of the motor 1 connected to one end of a connecting shaft, and the other end of the connecting shaft fixed on a mounting plate 1; the beneficial effects are as follows: the rice bran husk screening component and screening method for rice processing proposed by the present invention, two sets of spiral tower structures are arranged in a screening drum, the roughly processed rice is stirred to be in a discrete state, which is convenient for sufficient screening, and the screening drum is rotated quickly to allow the roughly processed rice to be rotated onto a filter screen by centrifugal force, so that the rice bran husk is continuously screened through the filter screen, and two sets of turbines are arranged on the outside of the filter screen, and the wind force generated by the rotation of the turbines adsorbs the rice bran husk attached to the filter screen to the outside of the screening drum, thereby improving the screening efficiency.

The above patent document has defects: the screening cylinder is arranged vertically, and under the action of centrifugal force, the lighter rice bran husks will still gather between the rice. Although the rice is stirred by two sets of spiral tower structures, it is difficult to suck out the rice bran husks between the rice under the action of wind force below, and the rice bran husks can easily block and cover the filter net, resulting in poor effect in long-term rice bran husk screening.

Summary of the invention

The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of the present invention to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

Therefore, the object of the present invention is to provide a rice bran husk screening machine for rice processing, which can effectively separate rice, heavier broken rice, soil blocks and rice bran husks, and is convenient for feeding and discharging.

In order to solve the above technical problems, the present invention provides a rice bran husk screening machine for rice processing, which adopts the following technical scheme: it comprises a horizontal frame, on which an outer cylinder is obliquely fixed, a screening inner cylinder is coaxially rotatably arranged in the outer cylinder, one end of the screening inner cylinder extending out of the height of the outer cylinder is externally rotatably sleeved with a dust hood, a driving member connected to the screening inner cylinder is installed at one end of the horizontal frame, a negative pressure member connected to the dust hood is installed at the other end of the horizontal frame, and the dust hood is connected to the inside of the outer cylinder through a dust suction pipe.

Optionally, the horizontal frame includes inclined frame rods located on both sides of the outer cylinder, the inclined frame rods are arranged parallel to the axis of the outer cylinder, the outer cylinder is fixed to the inclined frame rods through a first support block, a plurality of support rods of different lengths are fixed to the bottom of the inclined frame rods, the bottom surfaces of the plurality of support rods are located on the same horizontal plane, and a horizontal rod is fixed between the plurality of support rods.

Optionally, the inclination angle of the outer cylinder is 10-30°.

Optionally, both ends of the outer cylinder are provided with through holes adapted to the screening inner cylinder, the screening inner cylinder includes a cylinder body with one end closed and the other end open, the cylinder body includes a screening section and a feeding section, the screening section is a screen cylinder, the feeding section is a ring body, the two ends of the outside of the screen cylinder are fixedly sleeved with a first ring rail, the inner side wall of the through hole is sealingly and slidably connected to the first ring rail, the outer fixed sleeve of the ring body is provided with a second ring rail, and the inner side wall of the inlet of the dust hood is sealingly and slidably connected to the second ring rail.

Optionally, a first discharge port is provided at the bottom of the outer cylinder, a second discharge port is provided at a lower end of the screening inner cylinder, and a feed port is provided at a higher end of the screening inner cylinder.

Optionally, a first extension frame and a second extension frame connected in parallel with the inclined frame rod are fixed at both ends of the horizontal frame, a rotating shaft is connected to the outer wall at the lower part of the screening inner cylinder, the driving member includes a motor, the motor is fixed on the first extension frame, the output end of the motor is connected to the rotating shaft through a pulley and a belt, the negative pressure member adopts a turbine fan, and the input end of the turbine fan is connected to the outlet of the dust hood through a connecting pipe.

Optionally, a cleaning component is also included, which is a brush plate, both ends of which are respectively fixed to the two side walls of the inner cavity of the outer cylinder, and bristles that are in contact with the outer side wall of the screening inner cylinder are fixed on the brush plate.

Optionally, it also includes a stirring component, which is a stirring frame, and one end of the stirring frame is fixed to the inner wall at the lower part of the screening inner cylinder.

In summary, the present invention includes at least one of the following beneficial effects:

1. The present invention screens rice by using a screening inner cylinder with an opening facing upward. The broken rice bran shells are lighter in weight, and the negative pressure airflow generated will blow away the lighter rice bran shells, so that the rice bran shells are collected by the dust cover through the opening at one end of the screening inner cylinder. As the screening inner cylinder is inclined, the heavier rice will be located at a lower position of the screening inner cylinder, so that the rice and the rice bran shells can be effectively separated.

2. The present invention arranges an outer cylinder outside the screening inner cylinder, which can not only collect the heavier broken rice and soil blocks passing through the screening inner cylinder, but also perform synchronous negative pressure dust suction treatment on the lighter dust and rice bran shells passing through the screening inner cylinder and entering the outer cylinder.

3. The present invention can effectively separate rice, heavier broken rice, soil blocks and rice bran shells through the design of the screening inner cylinder and the outer cylinder, making feeding and discharging convenient and improving the screening efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

Fig. 1 is a schematic diagram of the structure of the present invention;

FIG2 is a bottom view of the structure of FIG1 of the present invention;

FIG3 is an enlarged structural schematic diagram of the A portion of FIG1 of the present invention;

FIG. 4 is a schematic diagram of the internal structure of FIG. 1 of the present invention.

Explanation of the reference numerals: 1. horizontal frame; 101. inclined frame rod; 102. first support block; 103. support rod; 104. horizontal rod; 105. first extension frame; 106. second extension frame; 2. outer cylinder; 3. screening inner cylinder; 301. screening section; 302. ring body; 303. first ring rail; 304. second ring rail; 305. rotating shaft; 4. dust hood; 5. driving member; 501. motor; 502. pulley; 503. belt; 6. negative pressure member; 601. connecting pipe; 7. dust pipe; 8. first discharge port; 9. second discharge port; 10. feed port; 11. cleaning member; 12. stirring member.

DETAILED DESCRIPTION

The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted/connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Embodiment 1

Referring to Fig. 1, the present invention discloses a rice bran husk screening machine for rice processing, comprising a horizontal frame 1, an outer cylinder 2 is tiltedly fixed on the horizontal frame 1, a screening inner cylinder 3 is coaxially rotatably arranged in the outer cylinder 2, one end of the screening inner cylinder 3 extending out of the height of the outer cylinder 2 is externally rotatably sleeved with a dust hood 304, a driving member 5 connected to the screening inner cylinder 3 is installed at one end of the horizontal frame 1, a negative pressure member 6 connected to the dust hood 304 is installed at the other end of the horizontal frame 1, the dust hood 304 is connected to the inside of the outer cylinder 2 through a dust suction pipe 7, and the outlet of the dust hood 304 can be connected to a cloth bag. A first discharge port 8 is provided at the bottom of the outer cylinder 2.

With the above structure, the driving member 5 drives the screening inner cylinder 3 to rotate inside the outer cylinder 2. The rice to be screened in the screening inner cylinder 3 is driven to rotate in the screening inner cylinder 3 under the rotation of the screening inner cylinder 3. The rice and rice bran shells will be scattered in the screening inner cylinder 3. Then, under the negative pressure of the negative pressure member 6, the scattered rice bran shells are lighter in weight, and the negative pressure airflow generated will blow away the lighter rice bran shells, so that the rice bran shells are collected by the dust cover 304 through the opening at one end of the screening inner cylinder 3. As for the heavier rice, since the screening inner cylinder 3 is inclined, the rice will be at the lower position of the screening inner cylinder 3, so that the rice and the rice bran shells can be effectively separated. After the rice bran husks and heavier broken rice and soil blocks pass through the screening inner cylinder 3, the dust suction hood 304 will synchronously negatively vacuum the lighter dust and rice bran husks in the outer cylinder 2 through the dust suction pipe 7, while the heavier broken rice and soil blocks are accumulated at the lower part of the outer cylinder 2; a first discharge port 8 is provided at the bottom of the outer cylinder 2 for collecting the heavier broken rice and soil blocks after separation, and a second discharge port 9 is provided at one end of the lower part of the screening inner cylinder 3. Since the rice with the rice bran husk removed is located at the lower part of the screening inner cylinder 3, the screened rice can be collected by opening the second discharge port 9, and a feed port 10 is provided at one end of the upper part of the screening inner cylinder 3 for passing the rice to be screened into the screening inner cylinder 3.

Referring to Figures 1-2, in detail, in this embodiment, the horizontal frame 1 includes an inclined frame rod 101 located on both sides of the outer cylinder 2, the inclined frame rod 101 is arranged parallel to the axis of the outer cylinder 2, and the outer cylinder 2 is fixed on the inclined frame rod 101 through a first support block 102. The inclined frame rod 101 provides an inclined surface for the installation of the outer cylinder 2, so that the outer cylinder 2 can work stably in a tilted state, and a plurality of support rods 103 of different lengths are fixed to the bottom of the inclined frame rod 101. The bottom surfaces of the plurality of support rods 103 are located on the same horizontal plane. The horizontal frame 1 can be placed horizontally on the bottom surface through the plurality of support rods 103. In this way, when the equipment is placed on the ground, the outer cylinder 2 and the inclined frame rod 101 are arranged at a certain angle to the bottom surface, and horizontal rods 104 are fixed between the plurality of support rods 103 to ensure the stability of the connection between the plurality of support rods 103, thereby ensuring the support for the outer cylinder 2.

1 , the outer cylinder 2 has an inclination angle of 10-30°, and in this embodiment, the inclination angle is preferably 15°, to ensure that the rice can continuously flow to the lower part of the screening inner cylinder 3 when the screening inner cylinder 3 rotates.

3 , in detail, in the present embodiment, both ends of the outer cylinder 2 are provided with through holes adapted to the screening inner cylinder 3, the screening inner cylinder 3 comprises a cylinder body which is closed at one end and opened at the other end, the cylinder body comprises a screening section 301 and a feeding section, the screening section 301 is a screen cylinder, the feeding section is a ring body 302, the arrangement of the ring body 302 part facilitates the arrangement of the feeding port 10, thereby facilitating the passage of rice into the screening inner cylinder 3, it should be noted that the inner wall of the screening inner cylinder 3 may be provided with a threaded protrusion for driving the rice to move upward when the screening inner cylinder 3 rotates, the threaded protrusion is arranged in the screening section 301 area, when the screening inner cylinder 3 rotates, the rice will not move upward to a certain position toward the screening inner cylinder 3 under the restriction of the threaded protrusion It flows out of the screening inner cylinder 3 and then flows back to the bottom of the screening inner cylinder 3 due to gravity. The outer ends of the screen cylinder are fixedly sleeved with a first ring rail 303, and the inner wall of the through hole is sealed and slidably connected in the first ring rail 303. The outer fixed sleeve of the ring body 302 is provided with a second ring rail 304, and the inner wall of the inlet of the dust hood 304 is sealed and slidably connected in the second ring rail 304. The sealed sliding method can also be adopted by connecting the dust hood 304 and the outer cylinder 2 with the screening inner cylinder 3 through a bearing. In order to ensure that the screening inner cylinder 3 can rotate, the screening section 301 and the opening part of the screening inner cylinder 3 are surrounded, thereby absorbing the rice bran husks and dust generated in the rice screening process without polluting the air.

1-3, in detail, in the present embodiment, the first extension frame 105 and the second extension frame 106 connected in parallel with the inclined frame rod 101 are fixed at both ends of the horizontal frame 1, and the rotating shaft 305 is connected to the outer wall at the lower part of the screening inner cylinder 3, and the driving member 5 includes a motor 501, and the motor 501 is fixed on the first extension frame 105, and the output end of the motor 501 is connected to the rotating shaft 305 through a pulley 502 and a belt 503, and the negative pressure member 6 adopts a turbo fan, and the input end of the turbo fan is connected to the outlet of the dust hood 304 through a connecting pipe 601, and a pulley is also provided at one end of the rotating shaft 305, and the motor 501 can drive the rotating shaft 305 to rotate through the reducer, the pulley 502 and the belt 503.

Working principle: When in use, the rice to be screened is passed into the screening inner cylinder 3 through the feed port 10, and then the motor 501 and the turbine fan power are turned on. The motor 501 drives the screening inner cylinder 3 to rotate inside the outer cylinder 2. The rice to be screened in the screening inner cylinder 3 is driven to rotate in the screening inner cylinder 3 under the rotation of the screening inner cylinder 3. The rice and rice bran shells will be broken up in the screening inner cylinder 3. Then, under the negative pressure of the negative pressure member 6, the broken rice bran shells are lighter in weight, and the negative pressure airflow generated will blow away the lighter rice bran shells. Since the screening inner cylinder 3 is a cylinder with one end closed and the other end open, the rice bran shells in the screening inner cylinder 3 are blown away by the screening inner cylinder 3. 3 is collected by the dust hood 304 at the opening at one end of the screening inner cylinder 3, and the heavier rice will be located at the lower position of the screening inner cylinder 3 due to the inclined setting of the screening inner cylinder 3, so that the rice and the rice bran shell can be effectively separated. For the rice bran shell and the heavier broken rice and soil blocks that pass through the screening inner cylinder 3 and enter the outer cylinder 2, the dust hood 304 will synchronously negatively vacuum the lighter dust and rice bran shell in the outer cylinder 2 through the dust suction pipe 7, while the heavier broken rice and soil blocks are accumulated at the lower part of the screening inner cylinder 3; after the screening is completed, the first discharge port 8 is opened to collect the separated heavier broken rice and soil blocks, and the screened rice can be collected by opening the second discharge port 9.

Embodiment 2

Referring to Figure 3, based on the same concept as the above-mentioned embodiment 1, the rice bran husk screening machine for rice processing also includes a cleaning component 11, and the cleaning component 11 is a brush plate. The two ends of the brush plate are respectively fixed on the two side walls of the inner cavity of the outer cylinder 2, and the brush plate is fixed with bristles that contact the outer wall of the screening inner cylinder 3. That is, when the screening inner cylinder 3 is driven to rotate to separate the rice bran husk from the rice, the surface of the screening inner cylinder 3 can be cleaned by the brush plate in the outer cylinder 2, and the dust on the surface of the screening inner cylinder 3 can be cleaned and absorbed by the vacuum hood 304 under negative pressure.

Embodiment 3

3 , based on the same concept as the first embodiment, the rice bran husk screening machine for rice processing further includes a stirring component 12 , which is a stirring frame, one end of which is fixed to the inner wall at the lower part of the screening inner cylinder 3 , and the stirring frame can break up the rice accumulated in the inner cavity of the screening inner cylinder 3 .

The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A rice processing is with rice bran shell screening machine which characterized in that: including horizontal stand (1), the slope is fixed with urceolus (2) on horizontal stand (1), coaxial line rotation is provided with screening inner tube (3) in urceolus (2), screening inner tube (3) extend the outside cover that rotates of one end of urceolus (2) eminence is equipped with dust hood (304), one end of horizontal stand (1) install with driving piece (5) that screening inner tube (3) are connected, negative pressure spare (6) that are connected with dust hood (304) are installed to the other end of horizontal stand (1), dust hood (304) are through dust absorption pipe (7) and the inside intercommunication of urceolus (2).

2. The rice husk screening machine for rice processing of claim 1, wherein: the horizontal rack (1) comprises inclined rack rods (101) positioned on two sides of the outer barrel (2), the inclined rack rods (101) are arranged in parallel with the axis of the outer barrel (2), the outer barrel (2) is fixed on the inclined rack rods (101) through a first supporting block (102), a plurality of supporting rods (103) with different lengths are fixed at the bottom of the inclined rack rods (101), the bottom surfaces of the supporting rods (103) are positioned on the same horizontal plane, and horizontal rods (104) are fixed between the supporting rods (103).

3. The rice husk screening machine for rice processing of claim 1, wherein: the inclination angle of the outer cylinder (2) is 10-30 degrees.

4. The rice husk screening machine for rice processing of claim 1, wherein: the two ends of the outer cylinder (2) are provided with through holes matched with the screening inner cylinder (3), the screening inner cylinder (3) comprises a cylinder body with one end closed and the other end open, the cylinder body comprises a screening segment (301) and a feeding segment, the screening segment (301) is a screen cylinder, the feeding segment is a ring body (302), the two outer ends of the screen cylinder are fixedly sleeved with first annular rails (303), the inner side walls of the through holes are in sealing sliding connection with the first annular rails (303), the outer fixing sleeve of the ring body (302) is provided with second annular rails (304), and the inner side walls of the dust hood (304) are in sealing sliding connection with the second annular rails (304).

5. The rice husk screening machine for rice processing of claim 1, wherein: the bottom of urceolus (2) is equipped with first discharge gate (8), the one end of screening inner tube (3) low is equipped with second discharge gate (9), the one end of screening inner tube (3) eminence is equipped with feed inlet (10).

6. A rice husk screening machine for rice processing according to claim 2, wherein: the two ends of the horizontal frame (1) are fixed with a first extension frame (105) and a second extension frame (106) which are connected with the inclined frame rod (101) in parallel, the outer side wall of the lower part of the screening inner cylinder (3) is connected with a rotating shaft (305), the driving piece (5) comprises a motor (501), the motor (501) is fixed on the first extension frame (105), the output end of the motor (501) is connected with the rotating shaft (305) through a belt wheel (502) and a belt (503), the negative pressure piece (6) adopts a turbine fan, and the input end of the turbine fan is connected with the outlet of the dust hood (304) through a connecting pipe (601).

7. A rice bran sizer for rice processing according to any one of claims 1 to 6, wherein: the cleaning device is characterized by further comprising a cleaning component (11), wherein the cleaning component (11) is a brush plate, two ends of the brush plate are respectively fixed on two side walls of the inner cavity of the outer cylinder (2), and bristles which are in contact with the outer side wall of the screening inner cylinder (3) are fixed on the brush plate.

8. A rice bran sizer for rice processing according to any one of claims 1 to 6, wherein: still include stirring part (12), stirring part (12) are the stirring frame, the one end of stirring frame is fixed in on the inside wall of screening inner tube (3) low.