Cylindrical separator

FIELD: grain cleaning machines for removal of short and elongated contaminants from grain mass, may be used in grain processing enterprises of agro-industrial complexes.

SUBSTANCE: cylindrical separator has cellular cylinder, feeding and distributing screw, lower and upper chute with discharge screws. Conveying apparatus positioned within cylinder, under lower chute, is provided with driving and driven rolls, as well as with guiding plates and flexible blades. Cylinder has cockle and wild oat cells.

EFFECT: increased efficiency and improved grain cleaning extent of separator.

3 cl, 2 dwg

 

The proposed separator refers to a grain cleaning machines used to clean grain from short and long impurities in farms and processing enterprises of the agroindustrial complex.

Known cylindrical Trier to highlight long admixtures design Afrosoricida and Egglomania (see Sokolov YA Technological equipment of enterprises for storage and processing of grain. - M.: Kolos, 1984 .- P.106-107).

Trier Afrosoricida and Egglomania designed for cleaning grain short fraction (wheat) from the long impurities (wild oat), provides a supply of source material for 2/3 the length of the cylinder. Wheat sink in the cell cylinder and are carried in the tray of Trier and weevil long fraction (wild oats) are unstable cells that fall below the edge of the front wall of the tray and returned periodically to the layer of the processed material, enriching its initial concentration, usually equal to 3% at the beginning of the cylinder, to 100% at the end of the exit. The speed of longitudinal movement regulate (increase) through a system of eleven inclined plates plujko, accumulation of wild oats and other long weeds at the end of the cylinder increases the probability of an outflow of cells in the tray, which reduces the cleaning efficiency of grain. Standard cell has the capacity of 2 - grain, that creates the condition for the sticky and the location of the grains of oats in the cell under the wheat grain, hence its removal and deposition in the tray, causing a further reduction in the efficiency of treatment. As a result, this Trier does not provide sufficient cleaning efficiency of grain, does not find wide application in enterprises. In addition, the processing of the original grain layer in the cylinder Trier long because of the duration of the process of separation, passing caryopses short fraction to the surface and fill the cells.

It is full lamination layer of the processed material and deposition (passing) of short particles of impurities to the cellular surface of the cylinder almost hundreds of times more time one full of sticky particles in the cell. This position is the main reason that when 3% of the content of short impurities (cockle) in the source material a lot of time to spend on the mixing layer rotation within the cylinder, to ensure complete removal of short or long impurities cells from the layer of the processed material, and that screening are still low and there is need for further improvement of technology of clean grain from impurities at low initial concentration (see Organov N.A., goats D.A. and Buggies A.S. Improvement of technology the technology of purification of impurities from the grain at low initial concentration in the separators. Sat. scient. Tr. SGTU: Technology, biotechnology and food processing equipment and food industries, vyp. - Ulan-Ude, 2005. P.77-82). This major drawback is characteristic for all production treerow used to clean grain in the agriculture of the country and abroad.

Known cylindrical Trier - osgoodby equipped with oblong cells for the removal of grains of oats in the tray and the device in the form of an inclined plane forming an angle α with horizontal cross-section of the cylinder, on which perpendicularly mounted guide plates forming the corner β horizontal in longitudinal section. Guide plates accelerate longitudinal movement of grains along the cylinder to the exit. The processed material with an inclined guide device gets to comb sieve, which contributes to the expansion layer and the filling of the cells in the lower right part of the circumference of the cylinder, (see patent RU No. 2182046, IPC WV 13/02. Cylindrical Trier - osgoodby. Organov N.A., Organov V.N., Kozlov D.A., Buggies A.S. Publ. 2002, B. I. No. 13).

However, the expansion layer and the filling of the cells in the specified Trier insufficiently improves its performance: does not provide intensive technology separation and purification of the processed material with the simultaneous removal of grains short and long FR the functions in separate trays.

The closest in technical essence and the achieved result of the present invention is a cylindrical puppet Trier design Afrosoricida, including wire mesh cylinder, boot-distributing auger, the upper and lower trays with putting screws (see Sokolov YA Technological equipment of enterprises for storage and processing of grain. - M.: Kolos, 1984, s-106).

A disadvantage of the known production puppet Trier is the low efficiency of cleaning of the grain due to the fact that supplied the length of the cylinder source material forms on its surface is unstable and limited slip grain layer, resulting not created the condition for sticky and normal arrangement of the particles of the short fraction (cockle) in cells and, therefore, a clear drop in the upper tray. The movement of the layer of the processed material on the porous surface of the cylinder thus does not provide the necessary separation processes and the passage of particles of the short fraction (cowl) to the surface and fill their cells. As a result, the flow layer of long grain fractions, directed from the surface of the lower tray, remains part of the caryopses short fraction (impurities). This reduces the cleaning efficiency of long grain fraction (wheat) and is a significant drawback ku is Aulnay Trier design Afrosoricida.

Known cylindrical Trier-osgoodby (see patent No. 2182046) due to new construction of cells for wild oat, provides sustainable Zapadnye caryopses long fraction and deposition in the tray, and short grain fraction (wheat) while periodically returning to the layer of the processed material moving fast layer along the cylinder to the exhaust pipe. This osgoodby, significantly improving the design of Trier Afrosoricida and Egglomania and changing technology clean grain from wild oats, significantly improves its performance. However, the possibility of increasing the productivity of Trier is not fully used. Periodic return caryopses long fraction in the layer of the processed material in Trier Afrosoricida and Egglomania or grains of the main fraction in the layer in Trier in patent No. 2182046 reduces the utilization of cellular surface and accordingly the performance of Trier.

You must ensure that the expansion of the zone of stable fill the cells with the kernels of short or long impurities by optimizing the thickness and the relative speed of the processed material on the porous surface of the cylinder, so that all the grains of litter (cockle and/or oats), which is usually about 3% of the content in the source material, managed from the PSS is bump into cells for their removal in the upper tray. Due to the fact that the design of a cell for the removal of grains of oats in the upper tray, the present invention is intended to clean grain from impurities in length and is called a cylindrical separator, provided with a mesh cylinder to extract the seeds (impurities) from the layer of the processed material in the upper tray, while directing the grain of the main fraction with mesh surface in the lower tray.

Thus, the technical problem of the invention is to develop a cylindrical separator for cleaning of grain from impurities in length by removal of caryopses short or long impurities cells in the upper tray and gathering grains of the main fraction by thin layer with mesh surface in the lower tray provided by the expansion of the zone of stable fill the cells with grains of impurities and by keeping the parameters of supply and mode of thin-layer movement of the processed material on the mesh surface using a special conveyor device.

The technical result of the invention is to increase the productivity of the clean grain from short and long impurities in cylindrical separator.

This technical result is achieved by the fact that in the cylindrical separator consisting of a porous cylinder, boot-raspredelitelnogo the auger, the upper and lower trays with output augers, according to the invention inside the cylinder below the bottom tray is installed conveyor device with flexible blades, equipped with the master and the slave rollers and guide plates, the cylinder is equipped with puppet and/or avsugning cells.

This technical result is also achieved by the fact that puppet cells are located with its axis of symmetry at an angle γ=20° to the direction of rotation of the cylinder.

This technical result is also achieved by the fact that the transport device is further provided with tensioning and clamping platens.

Distinctive features of the proposed device is the presence of a new structural element, namely the conveyor device with flexible blades, as well as a new form of the mesh cylinder is supplied simultaneously puppet and avsugning cells. In addition, a distinctive feature of the inventive separator is the location of the puppet cells at an angle γ=20° to the direction of rotation of the cylinder.

The presence of a conveyor device with a flexible blade provides an expansion sticky grains of impurities in the cell by maintaining their velocity V0the relative motion with the layer on the porous surface of the cylinder, rotating at speed . The optimal value of the relative velocity V0layer is determined taking into account the conditions of sustainable sticky grains in the cell according to the equations obtained in the work - see Organov N.A. Intensification of post-harvest processing and purification of impurities from the grain length, Ulan-Ude, ed. SGTU, 1999, 318 S. Condition sticky grains in the cell is determined by the value of the maximum speed V1his movements, above which excluded sustainable Zapadnye grain. The value of the relative velocity V0grain is determined by the backlog conveyor, moving with velocity Vtfrom the speed V of rotation of the mesh surface, i.e., V0=V-Vt. When the value of the relative velocity V0<V1there is a stable Zapadnye grains of impurities in the cell and release of cells from unstable stuck grains of the main fraction in the layer, the movement of which is supported by the conveyor. When free movement of the layer on the inner surface of the cylinder relative velocity V0movement of grain under the layer varies from the maximum value, equal to the speed of rotation of the cylinder V at the top and bottom edges of the layout layer (absolute slip, when V=V0and the absolute velocity of the grain Va=0), to a minimum, equal to about 0.1 V in the middle of the surface layer on the cylinder.

If this is m V 1=(0.3...0,9) V depending on the design of the cell and the length of the weevil impurities. For example, V1=0,3V for existing puppet and Oswego of treerow and V1=0.9V for Trier - osgoodby equipped with cells for the removal of wild oat (patent No. 2182046). The value V1practically determines the corresponding value of the cell fill grain under rotating layer of the processed material. If we consider the length of the arc surface of the cylinder in cross-section, which is filling the cells with grains of impurities, it is different and in percentage of the total length of the arc of the sector occupied by the layer of the processed material on the cylindrical surface are considered treerow, approximately the following values 30% and 90%. Therefore, the proposed conveyor device provides not only the expansion of fill cells with grains of impurities, but also increases the area of the movement of grain in a thin layer, combining the boundaries of the zone filled with border (edges) of the location of the grain layer under the conveyor in the cylinder. This created a favorable condition for filling cells with grains of impurities, fixed plot the minimum relative velocities of grain, provided the speed of conveying movement and separation of the grain separator, therefore, increased performance clean grain from premise the length at low initial concentration.

The estimated velocity Vtthe conveyor is provided by rotation of the lead roller from the drive shaft of the separator in a known manner. This conveyor device has virtually no resistance, because it is supported by rotation of the honeycomb surface of the cylinder through the layer of the processed material, fulfilling its purpose of stabilizing the optimal relative movement of the grain layer and creating the necessary conditions for the process in the separator.

The location of the puppet cells with its axis of symmetry at an angle γ=20° to the direction of rotation of the cylinder contributes to the output of wheat by the rotation of the cell when exposed to a flexible blades backward from the cellular surface of the conveyor device. When using the proposed cell separator installed as in the known devices, in the direction of rotation of the cylinder wheat leans against the back wall and exit the cell is difficult: the pressure on the front tip of the grain, which is situated on the edge of the front wall, takes the pressure from the blades of the conveyor device in the axial direction of the rear wall and thus hindered the output of grain because of the resistance of the conveyor device.

Collectively, the design features a cylindrical separator and its transportationcroatia provide optimal motion parameters of the grain layer, zone fill the cells with grains of impurities, the conditions of their deposition in the upper tray and the simultaneous vanishing of the grains of the main fraction with mesh surface in the lower tray, intensificar purification process of grain from impurities in length.

Thus, a new set of listed design features and elements that are in relationship with each other, leads to the strengthening of the technical properties of the structure of the cylindrical separator, which is manifested in a change to the existing technologies and the creation of energy-saving technological process of purification of impurities from the grain along the length of the separator and improving its performance in 2 and more times at the current rate of rotation of the cylinder according to the results of our study.

The comparison of the proposed cylindrical separator with other known technical solutions of the prior art in the patent and scientific and technical documentation has allowed to establish that the authors have not identified a solution that includes a set of features, similar or equivalent to the claimed. This allows to make a conclusion on the conformity of the proposal with the criteria of "novelty" and "inventive step".

The essence of the proposed design cylindrical separator is illustrated by drawings, where figure 1 schematically shows a cross RA is cut cylindrical separator, figure 2 - corner γ deviation of the axis of symmetry of the cell puppet cylinder on the direction of rotation in the plan.

We offer cylindrical separator includes a porous cylinder 1, the boot-distribution screw 2 of the supply pipe, the lower 3 and upper 4 trays with putting the screws 5 and 6, respectively, with the upper part of the rear wall of the tray 4 has a curved shape in accordance with the trajectory of the grains after separation from cells (see figure 1). Inside the cylinder 1 below the bottom tray 3 installed conveyor device 7 (in particular, the conveyor belt) with a flexible (rubber) blades 8, equipped with leading 9 and led 10 rollers and guide plates 11 and 12. Conveyor device 7 can additionally be fitted with tension 13 and clamps 14, 15 rollers. The cylinder 1 may be simultaneously and doll (item "K" in figure 1) and oswine (position "O" in figure 1) cells, as well as, or doll, or oswine cells. Puppet cells are located with its axis of symmetry at an angle γ=20° to the direction of rotation of the cylinder 1 (see figure 2).

The proposed device operates as follows.

Initial grain material to be treated from short (cockle) and/or long (wild oat) impurities, through the loading distribution screw 2 of the supply pipe is served in a wire mesh cylinder 1. EE is 2 uniformly thin layer distributes the source material throughout the length of the cylinder 1. The flow layer of the source material is captured by a conveyor device 7 with a flexible rubber blades 3, which provides the optimal speed of the grain layer on porous surfaces and conditions for sustainable fill the cells with grains of impurities, the relative displacement of grains of the main fraction on the surface to release the blank cells for grains of impurities, and the impurities from a layer to the porous surface and intensive filling of cells. Leading roller 9 of the conveyor device, spanned by the system: tension 13, slave 10 and the pinch rollers 14 and 15, the guide plates 11 and 12, provides it with a velocity Vt. Conveyor device for its flexible rubber blades provides a layer of material to be processed relative movement (lag) on the moving speed V of the honeycomb surface of the cylinder 1. The relative velocity of the grain is defined as the difference between the speeds of rotation of the cylinder is V and the movement of the conveyor V0=V-Vtand is almost constant, providing the best conditions and the intensity of the fill cell kernels. The absolute velocity Vathe grain layer is equal to the conveyor speed Vtprovides the performance of flow separation and purification of C the RNA from impurities in length, i.e., Vt=Va=V-V0.

Continuous movement of a thin layer of the processed material on the porous surface in the proposed cylindrical separator begins under the transport device 7 with flexible blades 8 in the location of its leading roller 9, the intersection of the horizontal axis of its circumference surface of the cylinder 1. This place is practically coincides with the horizontal axis of the circumference of the cylinder, i.e. the angle of initial movement of the layer and the area fill the cells with grains is equal to zero. The movement of the layer with a conveyor device 7 continues until the location of the driven roller 10, i.e. the length of the layer and the area fill the cells with grains ranging from 0°approximately 190° and located between the ends of the conveyor device 7.

At a free location and movement of the grain layer to the radius of the cylinder, held in the lower edge of the grain layer, forming an angle of about 80° on the horizontal axis, the circumference of the cylinder when rotating clockwise. This means that in this quarter the circumference of the cylinder is the area of the grain layer and fill the cells with grains under it increased almost 8 times.

In addition, if a free location and movement of the grain layer in this (lower right) the first quarter of the weevil in it start moving with absolute slip, V a=0 or V0=V and the relative velocity V0almost more than the threshold speed V1i.e. V0>V1and almost never provides the condition for sustainable sticky grains in the standard cell. When moving a layer supported by a conveyor device, provided the condition is sticky and fill the cells under a layer on the entire area of the I-th quarter: everywhere V0=(V-Vt)<V1. Sweet spot, fill the cells with grains of impurities under a layer continues in the lower left of the 2nd quarter of the circumference of the cylinder: the movement of the grain layer is supported by a conveyor device 7 to the location of her slave roller 10, the axis of which coincides with the lower edge of the tray 3. The grain of the main fraction (wheat), which do not fit into the cell by its size, comes with mesh surface in the lower tray 3, whence it is removed by the screw 5 from the separator. The loss of the grain of the main fraction in the lower tray 3 is provided so that the driven roller 10 of the conveyor device is installed at the center of their circle on the lower edge of the tray 3 and is located in the left part of the cylinder above the horizontal axis of its circumference by 10°i.e. the higher the maximum angle of the drop is unstable located on the cellular surface of the grain of the main fraction (position "P" in figure 1).

The location to the spalling of the cells under γ =20° to the direction of rotation of the cylinder contributes to the output of wheat by the rotation of the cell when exposed to a flexible blades osteomalacia from the cellular surface of the conveyor device. Grains of impurities stuck in the cells and stably located in them, carried out by cells in the upper tray 4, whence it is removed by the screw 6 of the cylinder 1 (position "K" and "O" in figure 1).

Thus, the proposed cylindrical separator, the working cylinder 1 which is equipped with cells for short (cockle) and long (wild oat) impurities in combination with a conveyor device 7 with flexible blades 8, the lower tray 3 to the grain of the main fraction and the top 4 for the short and long grains of impurities enables the creation of intensive and energy-saving technological process unified Trier, providing clean grain from the long and short of impurities, the contents of each of which is about 3%, and in total - 6%, by leaching of grains of impurities in the upper tray, and grains the main fraction at the bottom a tray.

We offer cylindrical separator to supply the cellular surface at the same time cells for the removal of cockle and wild oat. In this case, grains of cockle and wild oat steadily sink and lie only in their cells, are carried by the cells in the upper tray, and wheat in the lower tray. Quantities of the cells will be sufficient for caryopses of cockle and wild oats, as their number in General is just 6%. The probability of their sticky in their cells and provides sufficient relative movement of grains on a mesh surface in a thin layer. This option is the manufacture and use of wire mesh surface allows the cylindrical separator to replace two threerow - puppet and Oswego, delivers increased performance and power savings in two and more times. However, the cleaning efficiency at 1...2% lower than for the case when the cylindrical separator equipped with interchangeable cylinders for clean grain from the cowl and/or wild oat, provides high performance and efficient cleaning of grain.

The present invention provides not only a rational process of cleaning grain from short (cockle) and long (wild oat) impurities, but also a significant increase in productivity, efficiency, grain cleaning and reducing the intensity of the separator through a uniform feed and thin-layer traffic source material throughout the length of the cylinder, when the enlargement of the zone of location of the processed material and fill the cells with grains of impurities is provided by the parameter structures and movement of the conveyor device in two or more times, when the upper tray is designed for caryopses at the Yessei and lower grain of the main fraction. The use of the invention does not require high cost of retrofitting existing treerow or manufacture of the cylindrical separator will improve the cleaning efficiency of food grain and seed assignments inseparable from such impurities as Tatar grekiska and oats in Siberia, in particular, in the area of Transbaikalia.

1. A cylindrical separator consisting of a porous cylinder, loading and distribution of the auger, the upper and lower trays with bringing screws, characterized in that the inside of the cylinder below the bottom tray is installed conveyor device with flexible blades, equipped with leading guided rollers and guide plates, the cylinder is equipped with puppet and/or avsugning cells.

2. The separator according to claim 1, characterized in that the puppet cells are located with its axis of symmetry at an angle γ=20° to the direction of rotation of the cylinder.

3. The separator according to claim 1, characterized in that the conveyor device is further provided with tensioning and clamping platens.



 

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