CN114471797B - Shriveled grain extraction device and shriveled grain extraction process - Google Patents
Shriveled grain extraction device and shriveled grain extraction process Download PDFInfo
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- CN114471797B CN114471797B CN202011166700.XA CN202011166700A CN114471797B CN 114471797 B CN114471797 B CN 114471797B CN 202011166700 A CN202011166700 A CN 202011166700A CN 114471797 B CN114471797 B CN 114471797B
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- 238000000605 extraction Methods 0.000 title claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 161
- 230000005484 gravity Effects 0.000 claims abstract description 148
- 239000004575 stone Substances 0.000 claims abstract description 56
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 235000013339 cereals Nutrition 0.000 claims description 154
- 241000209094 Oryza Species 0.000 claims description 103
- 235000007164 Oryza sativa Nutrition 0.000 claims description 103
- 235000009566 rice Nutrition 0.000 claims description 103
- 238000012216 screening Methods 0.000 claims description 29
- 238000007873 sieving Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 235000021329 brown rice Nutrition 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000010903 husk Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 7
- 239000006148 magnetic separator Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000004464 cereal grain Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B7/00—Auxiliary devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B5/00—Grain treatment not otherwise provided for
- B02B5/02—Combined processes
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A collapsed grain extraction apparatus and a collapsed grain extraction process are provided for extracting collapsed grains from a grain mixture. The shrunken grain extraction device comprises a stoner, wherein the stoner is used for removing stones in the grain mixture, the shrunken grain extraction device further comprises a specific gravity machine, the specific gravity machine is arranged at the downstream of the stoner, and the specific gravity machine is used for separating the shrunken grains from the grain mixture stoned by the stoner. Preliminary grading is carried out through a stone removing machine, coarse dressing is carried out on the grain mixture, the material quantity mixed with the shrunken grains is reduced, and the shrunken grains are extracted through carefully selecting the proportion by using the proportion machine as an index, so that the shrunken grains are extracted.
Description
Technical Field
The disclosure relates to the technical field of rice processing, in particular to a shrunken grain extraction device and a shrunken grain extraction process.
Background
Shrunken grains, which refer to non-filled grains, are particularly common in harvested rice due to a variety of factors such as climate, maturity, etc., which may contain 4% to 8% shrunken grains. Taking rice as an example, during processing, shrunken grains can enter a dust removal system along with air separation or enter rice hulls, and are generally sold as impurities or the rice hulls.
Because the shrunken cereal contains a part of seeds, the shrunken cereal is a good feed for cultivation, and if the shrunken cereal can be extracted and sold separately, the shrunken cereal can be better obtained. When the rice husk is used as fuel for combustion, if the rice husk contains excessive shrunken grains, the quality of rice husk ash can be affected, which has a negative effect on further preparing white carbon black by using the rice husk.
As shown in fig. 2, in the prior art, rice in a rice bin 91 is subjected to coarse screening by passing through a preliminary screening 81 in order to remove large-scale impurities. The primarily screened rice forms a mixed material containing full rice and shrunken grains, and the mixed material containing full rice and shrunken grains enters a stoner 11 to be stoned and enters a rice huller 51 to be shelled to form the mixed material containing rice hulls and shrunken grains.
Thus, a technical problem to be solved by those skilled in the art is how to extract shrunken grains to increase the purity of the filled grains in the product.
Disclosure of Invention
The present disclosure is made in view of the state of the art described above. The present disclosure aims to provide a shrunken grain extraction device and a shrunken grain extraction process, which can improve the purity of full grains and collect shrunken grains.
There is provided a shrunken grain extraction apparatus for extracting shrunken grains from a grain mixture, the shrunken grain extraction apparatus comprising a destoner for removing stones from the grain mixture,
The shrunken grain extraction apparatus further comprises a gravity machine, the gravity machine is arranged at the downstream of the stoning machine, and the gravity machine is used for separating the shrunken grains from the grain mixture stoned by the stoning machine.
Preferably, the stoner comprises two screening surfaces for separating the grain mixture into the stone, a stoned specific gravity material and a stoned specific gravity material, the stoned specific gravity material having a specific gravity less than that of the stone, and the gravity machine is capable of receiving the stoned specific gravity material to separate the shrunken grain from the stoned specific gravity material.
Preferably, the shrunken grain extraction device further comprises a rice huller, wherein the rice huller is arranged at the downstream of the stoning machine, and the rice huller can receive the stoned material with high specific gravity so as to dehull the stoned material with high specific gravity.
Preferably, the shrunken grain extraction device further comprises a thickness machine arranged at the downstream of the stone removing machine and at the upstream of the specific gravity machine, wherein the thickness machine is used for separating the stone-removed specific gravity small material into a thickness small material and a thickness large material, the thickness of the thickness small material is smaller than that of the thickness large material, and the specific gravity machine can receive the thickness small material to separate the shrunken grain from the thickness small material.
Preferably, the shrunken grain extraction device further comprises a rice huller, the rice huller is arranged at the downstream of the stone removing machine, and the rice huller can receive the thick materials to dehull the thick materials.
There is also provided a shrunken grain extraction process for extracting shrunken grains from a grain mixture, the shrunken grain extraction process comprising the steps of:
a stone removing step: removing stones from the grain mixture with a stoner,
Screening according to specific gravity: separating the shrunken cereal from the grain mixture descaled by the descaler with a gravity machine.
Preferably, the shrunken grain extraction process includes a classification step performed prior to the stoning step,
In the classifying step, the stoner separates the cereal mixture into:
A. low specific gravity material after stone removal, and
B. the mixture of the stones and the material with high specific gravity after stone removal,
In the stoning step, the stoning machine separates the stones from the stoned material with high specific gravity.
Preferably, the shrunken grain extraction process comprises a first shelling step after the stoning step: and receiving the stoned material with high specific gravity by using a rice huller and shelling the stoned material with high specific gravity.
Preferably, in the gravity screening step, the gravity machine receives the destoner gravity small material and screens the destoner gravity small material into a terminal gravity large material having a gravity greater than that of the shrunken grains and the shrunken grains,
The shrunken grain extraction process includes a second dehulling step after the gravity screening step:
And receiving the material with the terminal specific gravity by using a rice huller and shelling the material with the terminal specific gravity.
Preferably, the shrunken grain extraction process comprises a step of screening according to thickness: separating the material with small specific gravity into a material with small thickness and a material with large thickness by using a thickness machine, wherein the thickness of the material with small thickness is smaller than that of the material with large thickness,
In the gravity screening step, the gravity machine receives the small thickness material and screens the small thickness material into a final high specific gravity material and the shrunken valleys.
Preferably, the shrunken grain extraction process comprises a third dehulling step after the gravity screening step: and receiving the thick materials by using a rice huller and shelling the thick materials.
The technical scheme provided by the disclosure has at least the following beneficial effects:
in the embodiment with the stoner and the gravity machine, the stoner is used for preliminary classification, the grain mixture is subjected to roughing, the amount of materials mixed with the shrunken grains is reduced, and the shrunken grains are extracted by carefully selecting the gravity machine by taking the specific gravity as an index.
The technical scheme can also have the following beneficial effects:
The stone removing machine, the thickness machine and the gravity machine are matched to extract the shrunken grains, the shrunken grains are primarily classified by the stone removing machine, the shrunken grains are screened by the thickness machine by taking the thickness as an index, the amount of materials mixed with the shrunken grains is small after the shrunken grains are screened by the thickness machine, and the shrunken grains are carefully selected by the gravity machine by taking the gravity as an index at the moment.
The method can obtain the flat grains with higher purity on the premise of considering both process efficiency and device simplification (the thickness machine has high yield, so that a specific gravity machine with a large number can be omitted).
Drawings
Fig. 1 is a schematic view of a shrunken grain extraction apparatus provided by the present disclosure.
Figure 2 shows a simplified diagram of a prior art cereal treatment process.
Reference numerals illustrate:
1a stoning machine, 2a thickness machine, 3a weight machine, 4a magnetic separator, 5 a rice huller, 6, a coarse grain sieve, 7 a sieve and air suction channel combination, 8a primary cleaning sieve, 9 a rice bin, 10a thickness machine and 11 a brown rice bin;
51 rice huller, 11 stoner, 81 primary cleaning sieve, 91 rice bin.
Detailed Description
Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings. It should be understood that these specific illustrations are for the purpose of illustrating how one skilled in the art may practice the disclosure, and are not intended to be exhaustive of all of the possible ways of practicing the disclosure, nor to limit the scope of the disclosure.
As shown in fig. 1, the present disclosure provides a collapsed valley extraction device that may include a prior screening portion, a separate extraction portion, and a subsequent processing portion. The shrunken grain extraction device is used for extracting shrunken grains from grains, and the shrunken grains are extracted from rice by way of example.
The front screening portion may be connected to, for example, a rice bin, where the raw material enters the front screening portion for screening. The front screening portion may include a primary screen, as well as a combination of screens and suction ducts. The openings of the primary screen are larger than those of the screen, so that the primary screen screens out impurities larger than the grains. The screen may be, for example, a vibrating screen or a rotary vibrating screen, with the screen screening out impurities larger than the grain and smaller than the impurities screened out by the primary screen. The screen can be used in combination with an air suction duct (e.g., a vertical air suction duct) so that the air suction duct can remove light impurities.
The two passes enable as much as possible of the larger impurities than the grain in the original material to be removed to form a grain mixture comprising full grain, stones which are as large as the grain (known as shoulder stones) and shrunken grains.
The separation and extraction section may include a stoner 1, a thickness machine 2, and a gravity machine 3, which are connected in order from upstream to downstream, and a rice huller 5 downstream of the above-mentioned machines.
The stoner 1 includes, for example, a specific gravity classification stoner that classifies materials by using a motion classification principle (also referred to as a dustpan principle) and by using different suspension speeds of materials having different specific gravities in motion. The grain mixture is separated into stones, high-specific-gravity materials (filled rice) after stone removal and low-specific-gravity materials (including shrunken rice and less filled rice which can be used as a main product) after stone removal by a specific-gravity grading stone removing machine, wherein the specific gravity of the low-specific-gravity materials after stone removal is smaller than that of the high-specific-gravity materials after stone removal, and the specific gravity of the high-specific-gravity materials after stone removal is smaller than that of stones. The gravity classification stoner may have two screening surfaces, a first screening surface separating the stoned mixture of high gravity material and stones from the low gravity material, and a second screening surface separating the stoned mixture of high gravity material from stones (shoulder stones).
Thus, the material with high specific gravity after stoning, the material with low specific gravity after stoning and stones respectively flow out from different outlets of the specific gravity grading stoner so as to be separated.
The specific gravity grading stoner adopts a mode of grading before removing, and removes stones which are difficult to remove due to the fact that the shapes and the sizes of the stones are close to those of rice, so that a good stoning effect can be obtained.
The outlet of the stoner 1 from which the stoned material having a large specific gravity flows out may be connected to a rice huller 5, and the rice huller 5 is capable of receiving the filled rice separated from the stoner 1 to dehull the same.
The thickness machine 2 may be arranged downstream of the stoner 1, in particular connected to the outlet of the stoner 1 for outflow of the stoned material of low specific gravity, so that the thickness machine 2 receives the stoned material of low specific gravity.
The thickness machine 2 uses the principle of sieve holes to separate materials by using the difference in thickness of the materials. The thickness machine 2 separates the stoned small specific gravity material flowing out of the stoning machine 1 into a thick material (thick rice which can be used as a main product) and a thick material (including shrunken rice and thin rice which can be used as a main product). The thickness of the material with small thickness is smaller than that of the material with large thickness.
Typically, the shrunken cereal is less thick than the cereal grains and the thickness machine 2 produces a greater yield to enable a greater proportion of the thick material to be separated with high efficiency. The outlet of the thickness machine 2 for the outflow of the thick material may be connected to a rice huller 5, and the rice huller 5 can receive the thick material to thereby dehull it.
The weight 3 may be arranged downstream of the thickness machine 2, in particular connected to an outlet of the thickness machine 2 for outflow of the material of small thickness, so that the weight 3 receives the material of small thickness.
The gravity machine 3 classifies the materials by utilizing the motion classification principle (also called the dustpan principle) and utilizing the different suspension speeds of the materials with different specific gravities in motion. Compared with the stoner 1, the sieving precision of the gravity machine 3 is higher, the stoner 1 is mainly used for removing stones so as to play a role in roughing, and the gravity machine 3 plays a role in selecting.
The gravity machine 3 separates the low-thickness material flowing out from the thickness machine 2 into a material having a terminal high specific gravity (small rice which can be a main product) and a shrunken grain, the specific gravity of the material having a terminal high specific gravity being greater than that of the shrunken grain. The outlet of the gravity machine 3 from which the material of the terminal specific gravity flows out may be connected to a rice huller 5, and the rice huller 5 is capable of receiving the material of the terminal specific gravity to hull it.
In this embodiment, the stoner 1, the thickness machine 2 and the gravity machine 3 may be connected in parallel to the rice huller 5, thereby improving efficiency of hulling in the process.
The separation and extraction section may further comprise a magnetic separator 4, and the magnetic separator 4 may be provided at the inlet of the rice huller 5 to avoid iron products, such as iron wires, in the grain mixture from damaging components of the rice huller 5, such as rubber rolls. The magnetic separator 4 may also be provided at the inlet of the stoner 1 to avoid iron products, such as iron wires, in the grain mixture from hanging on the screening surface of the stoner 1. Thus, the magnetic separator plays a role in protecting the shrunken grain extraction device.
In addition, the magnetic separator 4 can improve the quality of products by separating iron products, and the magnetic separator 4 can prevent the iron products from entering high-speed equipment to generate sparks so as to avoid accidents.
In the above embodiment, the destoner 1, the thickness machine 2 and the gravity machine 3 are combined to extract the shrunken grains, the destoner 1 is subjected to preliminary classification, the thickness machine 2 is used as an index to screen, the amount of materials mixed with the shrunken grains is small after the screening by the thickness machine 2, and the gravity machine 3 is used for fine selection by using the gravity as an index at the moment, so that the process efficiency is high, and the equipment investment is low.
This can obtain a flat grain with high purity while simultaneously achieving process efficiency and device simplification (since the thickness machine 2 has a large yield, the specific gravity machine 3 having a large number can be omitted).
The thickness machine 2 has a large yield but the separated material with small thickness may contain small rice, and in some varieties of rice, the difference between the main product and the shrunken rice in shape and thickness is small, so that the effect of the thickness machine 2 is limited, and the gravity machine 3 can accurately separate the shrunken rice by taking the specific gravity as an index.
In other embodiments, the outlet of the stoner 1 for the outflow of the stoned low gravity material may be connected to the inlet of the stoner 3 so as to eliminate the thickness machine 2, the stoner 3 separating the stoned low gravity material into shrunken grains and less filled rice grains that may be the main product.
In the embodiment having the stoner 1 and the gravity machine 3, the stoner 1 is used for preliminary classification, the grain mixture is subjected to roughing, the amount of materials mixed with the shrunken grains is reduced, and the shrunken grains are extracted by carefully selecting the gravity machine 3 by taking the gravity as an index.
In some embodiments, the rice huller 5 may not be provided, and the final heavy material flowing out of the gravity machine 3, the thick material flowing out of the thickness machine 2, and the stoned heavy material flowing out of the stoner 1 may be used as seeds for sale.
It should be understood that the "specific gravity" referred to above is the "volume weight", i.e. the weight per unit volume.
The "large-thickness material" and the "small-thickness material" refer to a material larger than the thickness standard and a material smaller than the thickness standard, respectively, which are obtained by dividing the stoned material with a specific thickness standard.
"The stoned specific gravity material" and "the stoned specific gravity material" refer to a material greater than the specific gravity standard and a material less than the specific gravity standard, respectively, which are obtained by dividing the stoned grain mixture by the specific gravity standard.
The flat grain extraction device and flat grain extraction process provided by the present disclosure are applicable to various types of grains containing flat grains, such as rice and the like.
When the applicable grain is rice, the above-mentioned stoned heavy material flowing out of the stoner 1 includes rice, the stoned light material flowing out of the stoner 1 includes brown rice (cracked brown rice), the light material flowing out of the thickness machine 2 includes brown rice, and the final heavy material flowing out of the gravity machine 3 includes brown rice.
The rice hulled by the huller 5 enters a subsequent processing part, and the rice and the brown rice are separated by the prior process. Specifically, the post-processing section may include, for example, a rice huller 6, a thickness machine 10, etc., and the rice discharged from the rice huller 5 is screened by the rice huller 6 to form unhulled rice and unhulled rice (the rice huller 5 is generally not capable of hulling all the material at once, and thus some of the material becomes unhulled rice). Unhulled rice is returned to the rice huller 5 to continue the rice hulling, and the unhulled rice is separated into unhulled brown rice (also called green grain, having a smaller thickness) and mature brown rice (having a larger thickness) by the thickness machine 10. The ripe brown rice enters a brown rice bin 11.
The following describes a shrunken grain extraction process implemented using the shrunken grain extraction apparatus described above.
The shrunken cereal extraction process comprises the following steps:
a classification step: the stoner 1 separates the cereal mixture into:
A. low specific gravity material after stone removal, and
B. a mixture of stones and a material with a high specific gravity after stone removal;
a stone removing step: the stoner 1 removes stones from a grain mixture, in particular from a mixture of stones and a stoned material with a high specific gravity; it should be understood that in the stoner 1, the classification step and the stoning step may be performed simultaneously and continuously; for the same material, the material can be subjected to a classification step and then a stone removal step;
the step of screening according to the thickness: the thickness machine 2 separates the material with small specific gravity into a material with small thickness and a material with large thickness after stone removal;
Screening according to specific gravity: the weight machine 3 receives the reduced thickness material and screens the reduced thickness material into a final bulk density material and a shrunken grain, whereby the weight machine 3 separates out the shrunken grain from the grain mixture removed by the stoner 1, which is collected as a by-product.
The rice huller 5 receives the material with the high specific gravity after the stone removal and dehulling the material with the high specific gravity after the stone removal; the classification step and the stoning step may be performed by a specific gravity classification stoner or may be performed by a plurality of machines independently provided.
In the embodiment having the stoning step and the gravity screening step, the grain mixture is coarsely classified by the stoning step to reduce the amount of material mixed with the shrunken grains, and then the shrunken grains are extracted by concentrating by the gravity classification step with the gravity as an index.
In the specific gravity screening step, the materials flowing out of the specific gravity machine are divided into three types: the mixture of the flat grain, the material with a high final specific gravity and the reflux material is a mixture containing the flat grain and the material with a high final specific gravity, and the mixture is refluxed to the gravity machine 3 for the next separation. Thus, a clean flat grain and end specific gravity material can be obtained.
The shrunken cereal extraction process further comprises:
A first shelling step, following the stoning step: the rice huller 5 receives the stoned material having a large specific gravity and dehulling the stoned material having a large specific gravity, and
A second shelling step, after the sieving step by specific gravity: the rice huller 5 receives and dehulling the material of the terminal specific gravity, and
A third dehulling step after the sizing step by thickness: the rice huller 5 receives the thick material and dehulling the thick material.
It will be appreciated that the above-described first, second and third husking steps may be simultaneously performed in the rice huller 5.
It will be appreciated that the stoner 1, the thickness machine 2, the gravity machine 3 and the rice huller 5 are generally operated simultaneously, and thus the above-mentioned steps are also generally performed simultaneously and continuously. The step A refers to the step A before the step B, and the step A and the step B are carried out on the same material.
The removed rice hulls are collected as a byproduct.
In this embodiment, the rice huller 5 dehulling the stoned material with a large specific gravity, the material with a large specific gravity at the end and the material with a large thickness, thereby forming a pipelining operation, and improving the efficiency of the shrunken grain extraction process.
By utilizing the device and the process provided by the disclosure, the shrunken grains can be collected and sold to the breeding clients independently, so that the shrunken grain value is improved, the shrunken grain quantity contained in the rice hulls is reduced, the quality of rice hull ash can be improved, and the shrunken grain hulling is more convenient.
A specific embodiment is provided below.
A certain 2000 ton/day rice production line adopts the process to process the Subei rice, and can be obtained through in-situ processing sampling and yield analysis:
First, the yield of the shrunken grains of the auction grains is 5%, and the yield of the shrunken grains of the new grains is 3.0%. The price of the extracted shrunken grains is 1300 yuan/ton, the price of the rice hulls is 200 yuan/ton to 300 yuan/ton, the price of the shrunken grains mixed in the rice hulls is calculated according to the price of the rice hulls, taking the 2000 ton/day rice production line of the factory as an example, 60 tons of shrunken grains can be obtained every day when the shrunken grain yield is calculated according to 3 percent, the price difference of each ton of shrunken grains and the rice hulls is calculated according to 1000 yuan/ton, the profit of 60,000 yuan can be obtained every day, and the economic benefit is remarkable.
Second, because the rice husk has small shrunken grain content, the rice husk ash obtained after the produced rice husk passes through the gasification furnace completely meets the requirements of the rice husk ash for manufacturing white carbon black.
It should be understood that the above embodiments are merely exemplary and are not intended to limit the present disclosure. Numerous modifications and variations to the above-described embodiments may be made by those skilled in the art in light of the teachings of the present disclosure without departing from the scope of the present disclosure.
Claims (7)
1. A shrunken grain extraction device for extracting shrunken grains from a grain mixture, the shrunken grain extraction device comprising a stoner (1), the stoner (1) being adapted to remove stones from the grain mixture, characterized in that,
The flat grain extraction device also comprises a gravity machine (3), wherein the gravity machine (3) is arranged at the downstream of the stoner (1), the gravity machine (3) is used for separating the flat grain from the grain mixture stoned by the stoner (1),
The stoner (1) comprises two screening surfaces for separating the grain mixture into the stones, a stoned specific gravity material and a stoned specific gravity material, wherein the stoned specific gravity material has a specific gravity smaller than that of the stoned specific gravity material, the stoned specific gravity material has a specific gravity smaller than that of the stones,
The flat grain extraction device further comprises a thickness machine (2), the thickness machine (2) is arranged at the downstream of the stone removing machine (1) and the upstream of the specific gravity machine (3), the thickness machine (2) is used for separating the small-specific gravity materials after stone removal into small-thickness materials and large-thickness materials, the thickness of the small-thickness materials is smaller than that of the large-thickness materials, and the specific gravity machine (3) can receive the small-thickness materials to separate flat grains from the small-thickness materials.
2. The shrunken grain extraction device according to claim 1, further comprising a rice huller (5), the rice huller (5) being arranged downstream of the stoner (1), the rice huller (5) being capable of receiving the stoned specific gravity material for shelling the stoned specific gravity material.
3. The shrunken grain extraction device according to claim 1, further comprising a rice huller (5), the rice huller (5) being arranged downstream of the stoner (1), the rice huller (5) being capable of receiving the thick material for hulling the thick material.
4. A collapsed grain extraction process for extracting collapsed grains from a grain mixture, the collapsed grain extraction process comprising the steps of:
a stone removing step: removing stones from the grain mixture by a stone remover (1),
Screening according to specific gravity: separating the shrunken grains from the grain mixture descaled by the destoner (1) with a gravity machine (3),
The shrunken grain extraction process includes a classification step performed prior to the stoning step,
In the classifying step, the stoner (1) separates the cereal mixture into:
A. low specific gravity material after stone removal, and
B. the mixture of the stones and the material with high specific gravity after stone removal,
In the stoning step, the stoner (1) separates the stones from the stoned material with high specific gravity,
The shrunken grain extraction process comprises the steps of screening according to thickness: separating the stoned material with small specific gravity into a material with small thickness and a material with large thickness by using a thickness machine (2), wherein the thickness of the material with small thickness is smaller than that of the material with large thickness,
In the gravity-based sieving step, the gravity machine (3) receives the small-thickness material and sieves the small-thickness material into a final-gravity-large material having a larger specific gravity than the flat-valley and the flat-valley.
5. The shrunken grain extraction process of claim 4, comprising a first shelling step after the stoning step: and receiving the material with the high specific gravity after the stone removal by using a rice huller (5) and shelling the material with the high specific gravity after the stone removal.
6. The flat grain extraction process according to claim 4, wherein,
The shrunken grain extraction process includes a second dehulling step after the gravity screening step:
And receiving the material with the terminal specific gravity by using a rice huller (5) and shelling the material with the terminal specific gravity.
7. The shrunken grain extraction process of claim 4, comprising a third dehulling step after the gravity screening step: and receiving the thick materials by using a rice huller (5) and shelling the thick materials.
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| CN213528793U (en) * | 2020-10-27 | 2021-06-25 | 益海（泰州）粮油工业有限公司 | Shrivelled grain extraction element |
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