CN223263867U - Shelling edulcoration disconnect-type husk rice device - Google Patents

Abstract

The present application provides a rice milling device with hulling, impurity removal, and separation, relating to the technical field of rice milling equipment. The device comprises a rice milling roller, a housing, and a drive shaft extending through the housing that drives the rice milling roller. The rice milling roller includes an impurity removal section and a rice milling section, with an impurity removal space remaining between the impurity removal section and the housing. The rice milling roller is provided with a receiving groove extending through the impurity removal and rice milling sections. The inner wall of the receiving groove is spirally shaped along the length of the rice milling roller. The housing is provided with a slag discharge port at the end of the impurity removal section. The cross-sectional area of the receiving groove in the impurity removal section is larger than that of the receiving groove in the rice milling section. During rotation, sand and gravel are separated from the rice and enter the impurity removal space. They are then crushed by the impurity removal section and the housing of the rice milling roller. The crushed sand and gravel, as well as sand and gravel that are too small to be crushed, are sealed in the impurity removal space by a spiral retaining wall and exit the rice milling device through the slag discharge port. The sand and gravel are separated and collected separately from the husks, reducing contamination of the collected husks by the crushed sand and gravel.

Description

Shelling edulcoration disconnect-type husk rice device

Technical Field

The application relates to the technical field of rice milling equipment, in particular to a husking impurity-removing separation type rice milling device.

Background

In the rice milling process, the rice is sent into a rice mill, and the rice hull is separated from the rice grains through extrusion and milling of a rice milling roller. In the rice milling process, rice hulls are not unique foreign matters, so that moisture in the rice is evaporated, the humidity of the rice is reduced, mildew and germination are prevented, the storage period of the rice is prolonged, the rice needs to be subjected to a drying process after harvesting, and the rice needs to be subjected to periodic turning in the drying process, so that a large amount of sand and stone are mixed in the rice after drying. The prior art rice mills/huskers allow for removal of sand during husking, either by a screening process prior to husking or simultaneously with the husk, such as:

1. The utility model discloses a rice mill with a bran sieving device, which comprises a bottom plate and a rice mill body, wherein the rice mill body is fixedly arranged on one side of the top of the bottom plate, a control module is fixedly arranged on the other side of the top of the bottom plate, a fixed table is fixedly arranged on one side of the top of the bottom plate, a bran sieving mechanism is arranged on the top of the bottom plate, the bran sieving mechanism comprises a motor, a turntable, a connecting plate, a second screen, a first screen, a fixed plate, a guide rod, a movable plate and a movable block, the motor is fixedly arranged on the top of the fixed table, an output shaft of the motor is fixedly connected with the middle part of the bottom of the turntable, and the rice mill with the bran sieving device enables the first screen and the second screen to reciprocate to sieve rice discharged from a discharge hole of the rice mill body for twice, so that grains, large rice hulls, coarse grains, stones and other impurities in the rice are removed, and the purity of the rice after the rice mill is improved, namely grains, rice hulls and stones are removed simultaneously.

2. The utility model discloses a rice milling device, belonging to the technical field of rice processing, and discloses a Chinese patent with publication number of CN 219400271U. The rice milling device comprises a device shell, wherein a feed hopper is arranged on the device shell, a wet removing pipe and two rice milling rollers are arranged in the device shell, a first material guide plate is arranged between the wet removing pipe and the feed hopper, the two rice milling rollers are arranged below the wet removing pipe, a first screening plate is arranged between the two rice milling rollers and the wet removing pipe, a rice collecting box is arranged at the bottom end of the device shell, a second screening plate is arranged between the rice collecting box and the two rice milling rollers, and a vibration assembly is further arranged in the device shell and is respectively connected with the first screening plate and the second screening plate. In the utility model, the rice is screened by the first screening plate before rice milling, so that foreign matters such as rice and stones are prevented from damaging the rice milling roller, namely, the rice passes through the screening plate before rice milling.

Rice hulls are by-products produced during rice processing and have a variety of potential recycling values. For example, the method can be used for manufacturing environment-friendly rice husk plates or chopping boards, serving as animal feed, serving as a culture medium for edible fungi such as mushrooms, serving as environment-friendly packaging materials, producing biodegradable plastics, serving as substitutes of traditional plastics and the like, so that rice husk and sand stone are separated at the same time to pollute the removed chaff, and the difficulty is increased for secondary utilization of the chaff. And screening is carried out before shelling, so that irregular sand and stone block the screen, and the screening efficiency is reduced rapidly.

Disclosure of utility model

In order to solve the problems existing in the existing rice milling equipment. The technical scheme adopted by the application is that the husking impurity-removing separation type rice milling device comprises a rice milling roller, a shell and a transmission shaft which can drive the rice milling roller to rotate and penetrate through the shell;

The rice milling roller comprises a impurity removing section and a rice milling section, an impurity removing space is reserved between the impurity removing section and the shell, the rice milling roller is provided with a containing groove which is communicated with the impurity removing section and the rice milling section, the inner wall of the containing groove is spiral along the length direction of the rice milling roller, a circumferential retaining wall is arranged on the inner wall of the shell between the impurity removing section and the rice milling section, the impurity removing section is provided with a spiral retaining wall in the impurity removing space, the shell is provided with a slag discharging port at the tail end position of the impurity removing section, and the sectional area of the containing groove which is located the impurity removing section is larger than that of the containing groove which is located the rice milling section.

Optionally, the cross-sectional area of the accommodating groove gradually decreases from one end far away from the rice milling section to one end far away from the impurity removing section.

Optionally, the opening angle of the accommodating groove at the impurity removing section is larger than the opening angle of the accommodating groove at the rice milling section.

Optionally, the depth of the receiving groove in the impurity removal section is greater than the depth of the receiving groove in the rice milling section.

Optionally, the spiral retaining wall is provided with a bevel panel with a bevel direction facing the opposite direction of rotation of the milling roller.

Optionally, the ratio of the cross-sectional area of the receiving groove at the far end away from the rice milling section to the cross-sectional area of the receiving groove at the far end away from the impurity removal section is 1.5-2:1.

Optionally, a filter screen is arranged on the shell of the rice milling section.

Optionally, an air duct is arranged outside the filter screen, and the air duct is communicated with a fan.

Optionally, the cross-sectional area of the receiving groove is constant at the impurity removal section.

The beneficial effects of the utility model are as follows:

1. The rice is driven to rotate by the rice milling roller, sand and stone are separated from the rice in the rotation process and enter into the impurity removing space, then the sand and stone are crushed by the impurity removing section and the shell of the rice milling roller, the crushed sand and stone with insufficient size are blocked in the impurity removing space by the spiral retaining wall, are conveyed forwards along with the rotation of the rice milling roller, are conveyed to the circumferential retaining wall to stop moving forwards, and leave the inside of the rice milling device through the slag discharging port;

2. the rice husking machine has the advantages that a large space is reserved in the impurity removing section to allow rice and sand to move mutually, sand is enabled to smoothly fall down to the inner wall of the shell, so that the sand enters the impurity removing space, a small space is adopted in a containing groove of the rice husking section to enable the rice to rub and squeeze mutually, husking is achieved, sand and husk are separated respectively, and are collected respectively, so that pollution of crushed sand and sand received by the collected husk is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly describe the drawings used in the embodiments or the description of the prior art:

FIG. 1 is a schematic view of the space for removing impurities (with transmission structure and seal removed) according to an embodiment of the present application;

FIG. 2 is a schematic view of a spiral retaining wall according to an embodiment of the present application;

FIG. 3 is a schematic view of a bevel panel according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a filter screen according to an embodiment of the present application;

FIG. 5 is a schematic diagram of an air duct structure according to an embodiment of the present application;

FIG. 6 is a schematic view showing the depth change of the accommodating groove according to the present application;

FIG. 7 is a schematic view showing the change of the opening angle of the accommodating groove according to the present application;

fig. 8 is a schematic view of a receiving groove according to embodiment 9 of the present application.

The reference numerals indicate that the rice milling machine comprises a rice milling roller 1, a shell 2, a transmission shaft 3, a 4-impurity removing section, a 5-rice milling section, a 6-impurity removing space, a 7-accommodating groove, an 8-circumferential retaining wall, a 9-spiral retaining wall, a 10-slag discharging port, an 11-inclined panel, a 12-filter screen, a 13-air duct, a 14-feed port and a 15-air duct outlet.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Example 1

The embodiment of the application provides a husking and impurity removing separation type rice milling device, which is shown in figures 1, 2 and 4 and comprises a rice milling roller 1, a shell 2 and a transmission shaft 3 capable of driving the rice milling roller 1 to rotate and penetrating through the shell 2;

The rice milling roll 1 includes edulcoration section 4 and rice milling section 5, leave edulcoration space 6 between edulcoration section 4 and the shell 2, rice milling roll 1 is provided with the holding tank 7 that link up edulcoration section 4 and rice milling section 5, the inner wall of holding tank 7 is the heliciform along the length direction of rice milling roll 1, the inner wall of shell 2 is provided with circumference barricade 8 between edulcoration section 4 and rice milling section 5, edulcoration section 4 is provided with spiral barricade 9 in edulcoration space 6, shell 2 is provided with row cinder notch 10 in edulcoration section 4 end position, the cross-sectional area of holding tank 7 that is located edulcoration section 4 is greater than the cross-sectional area of holding tank 7 that is located rice milling section 5.

The rice passes through feed inlet 14 and gets into inside shell 2, drive the corn through milling roller 1 and rotate, the corn is not fully filled in the holding tank of edulcoration section 4, make grit and corn separation in the rotation in-process, and enter edulcoration space 6, then by milling section 4 and shell 2 of milling roller 1 pulverize, grit and the size after pulverize is insufficient to be blocked in edulcoration space 6 by spiral barricade 9, along with milling roller 1's rotation and forward transport, transport to circumference barricade 8 department stop to move forward, leave milling device inside through row cinder notch 10.

The large space is reserved in the impurity removing section 4 to allow the rice and the sand to move mutually, so that the sand can smoothly fall to the inner wall of the shell 2 to enter the impurity removing space 6, the accommodating groove 7 of the rice milling section 5 adopts a small space, the rice is completely filled in the rice milling section 5, the rice is promoted to rub and squeeze mutually, the shelling is realized, the sand and the husk are separated respectively, and are collected respectively, so that the pollution of the crushed sand to the collected husk is reduced.

Example 2

In another embodiment of the present application, as shown in fig. 7, the sectional area of the receiving groove 7 is gradually reduced from the end far from the rice milling section 5 to the end far from the impurity removing section 4. In order to enable the rice in the accommodating groove 7 to smoothly move from the impurity removing section 4 to the rice milling section 5, the sectional area of the accommodating groove 7 is uniformly contracted along the length direction of the rice milling roller 1, and the phenomenon that the movement of the rice is blocked by a blocking threshold in the accommodating groove 7 is avoided.

Example 3

In another embodiment of the application, as shown in fig. 7, the opening angle of the receiving groove 7 in the impurity removing unit 4 is larger than the opening angle of the receiving groove 7 in the rice milling unit 5. The sectional area of the accommodating groove 7 is reduced by adjusting the opening angle, and in the impurity removing section 4, the opening angle of the accommodating groove 7 is increased to facilitate the unhulled rice to smoothly enter the accommodating groove 7. Meanwhile, the cross section of the opening angle adjusting accommodating groove 7 of the accommodating groove 7 can maximize the diameter of the central shaft of the rice milling roller 1 so as to ensure the strength of the rice milling roller 1, and particularly for the rice milling roller 1 of the impurity removing section 4, the cobbles are crushed in an extrusion mode, and the strength of the rice milling roller 1 is required.

Example 4

In another embodiment of the application, as shown in fig. 6, the depth of the receiving groove 7 in the impurity removal section 4 is greater than the depth of the receiving groove 7 in the rice milling section 5. Although the strength of the rice milling roll 1 of the impurity removal section 4 is somewhat reduced by changing the sectional area of the accommodating groove 7 by adjusting the depth, the rice milling roll 1 of this design is less difficult to process than that of example 2, and the inner wall of the accommodating groove 7 is only changed in the spiral direction along the length direction of the rice milling roll 1 without overlapping the opening angle change.

Example 5

In another embodiment of the present application, as shown in fig. 3, the spiral retaining wall 9 is provided with the inclined plate 11 with the inclined direction facing the opposite direction of the rotation direction of the rice milling roller 1, and the inclined plate 11 provided by the spiral retaining wall 9 can reduce the probability that the spiral retaining wall 9 and the outer wall 2 clamp the rice, thereby effectively reducing the rice crushing rate.

Example 6

In another embodiment of the application, as shown in fig. 6-8, the ratio of the cross-sectional area of the receiving groove 7 furthest from the rice milling section 5 to the cross-sectional area of the receiving groove 7 furthest from the impurity removal section 4 is 1.5-2:1. The sectional area of the accommodating groove 7 directly influences the strength of the rice milling roller 1 and the working efficiency of rice husking, the increased accommodating groove 7 can improve the rice husking efficiency, but can reduce the strength of the rice milling roller 1, and the ratio of the sectional area of the furthest end of the accommodating groove 7, far away from the rice milling section 5, to the sectional area of the furthest end of the accommodating groove 7, far away from the impurity removing section 4, is 1.5-2:1, so that the working efficiency and the design proportion of the strength of the rice milling roller 1 can be balanced.

Example 7

In another embodiment of the application, as shown in fig. 4, the housing in the rice milling section 5 is provided with a filter screen 12. The filter 12 in fig. 4 is merely an illustration of the relative positional relationship provided for the filter 12, and does not constitute a limitation on the ratio of the mesh size of the filter 12 to the entire area of the filter 12. Since the rice milling section 5 does not need to crush stones, the filter screen 12 is arranged at the position, the husks which are dehulled in the rice milling section 5 can be separated in advance, and the filter screen 12 is not damaged or blocked by the stones.

Example 8

In another embodiment of the present application, as shown in fig. 4 and 5, an air duct 13 is disposed outside the filter screen 12, and the air duct 13 is connected with a fan. The husks after husking are pumped away by the fan, the space of the impurity removing section 4 and the space of the rice milling section 5 are relatively communicated, the paddy in the husks can block the accommodating groove 7 at the circumferential retaining wall 8 to a certain extent, the space of the impurity removing section 4 and the space of the rice milling section 5 are isolated, and the influence of air suction on the impurity removing section 4 is reduced. The rice hulls separated from the rice milling section 5 pass through the filter screen 12 to enter the air duct and are discharged through the air duct outlet 15, and the application does not relate to the structural design of the fan, so that the isolation structure of the rice hulls and the fan in the process of being extracted is not shown in the figure.

Example 9

In another embodiment of the application, as shown in fig. 8, the cross-sectional area of the receiving groove 7 is constant in the impurity removal section 4. In order to be able to provide more space for grains and sand to move in the section 4 as the milling roll 1 rotates, the holding tank 7 of the section 4 is kept constant in cross-section, and the ratio of the grain bulk to the section holding tank space during grain delivery is less than 2/3.

The foregoing embodiments are merely illustrative of the technical solutions of the present application, and not restrictive, and although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that modifications may still be made to the technical solutions described in the foregoing embodiments or equivalent substitutions of some technical features thereof, and that such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. The utility model provides a husking edulcoration disconnect-type rice milling device, includes husk rice roller, shell and can drive the husk rice roller rotates and runs through the transmission shaft of shell, its characterized in that:

The rice milling roller comprises a impurity removal section and a rice milling section, an impurity removal space is reserved between the impurity removal section and the shell, the rice milling roller is provided with a containing groove which is communicated with the impurity removal section and the rice milling section, the inner wall of the containing groove is spiral along the length direction of the rice milling roller, the inner wall of the shell is provided with a circumferential retaining wall between the impurity removal section and the rice milling section, the impurity removal section is provided with a spiral retaining wall in the impurity removal space, the shell is provided with a slag discharge port at the tail end position of the impurity removal section, and the cross section of the containing groove of the impurity removal section is larger than that of the containing groove of the rice milling section.

2. A husking and impurity removing separation rice milling apparatus according to claim 1, wherein the sectional area of said holding tank is gradually reduced from the end far from said rice milling section to the end far from said impurity removing section.

3. A husking and impurity removing separation type rice milling apparatus according to claim 2, wherein the opening angle of the receiving groove in the impurity removing section is larger than that of the receiving groove in the rice milling section.

4. A husking and impurity removing separation type rice milling apparatus according to claim 2, wherein the depth of the receiving groove in the impurity removing section is greater than the depth of the receiving groove in the rice milling section.

5. The husking and impurity removing separation rice milling apparatus as claimed in any one of claims 1 to 4, wherein the spiral retaining wall is provided with inclined plates inclined in the opposite direction to the rotation direction of the rice milling roller.

6. A husking and impurity removing separation rice milling apparatus according to any one of claims 1 to 4, wherein the ratio of the sectional area of the receiving groove at the far end far from the rice milling section to the sectional area of the receiving groove at the far end far from the impurity removing section is 1.5 to 2:1.

7. A husking and impurity removing separated rice milling apparatus as claimed in claim 5, wherein the outer shell of said rice milling section is provided with a filter screen.

8. The husking and impurity removing separation rice milling device as claimed in claim 7, wherein an air duct is arranged outside the filter screen, and the air duct is communicated with a fan.

9. A husking and impurity removing separation rice milling apparatus as claimed in claim 1, wherein the sectional area of the receiving groove is constant in the impurity removing section.