CN221297145U

CN221297145U - Seed cotton foreign fiber cleaning equipment

Info

Publication number: CN221297145U
Application number: CN202322886571.7U
Authority: CN
Inventors: 方合义; 刘文普; 刘娟; 任广森; 李家尊
Original assignee: Shandong Swan Cotton Industrial Machinery Stock Co ltd
Current assignee: Shandong Swan Cotton Industrial Machinery Stock Co ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2024-07-09
Anticipated expiration: 2033-10-26

Abstract

The utility model discloses a cleaning device for foreign fibers of seed cotton, which comprises the following basic structure: the chamber is provided with a feeding hole at one side of the middle part or the upper part, a cotton outlet at one side of the lower part, an air inlet at one side of the lower part opposite to the cotton outlet, a grid bar grid covered at the air inlet, and a valve plate arranged at the cotton outlet for intermittently opening the cotton outlet; the dust cage is positioned at the upper part of the main chamber; the impurity removing device is positioned at one side of the dust cage, and the side is the side away from the feeding hole; the main chamber is provided with a impurity outlet at the side; and the feeding mechanism is positioned at the feeding port and used for intermittently feeding a given amount of seed cotton. The seed cotton foreign fiber cleaning equipment has relatively high cleaning efficiency.

Description

Seed cotton foreign fiber cleaning equipment

Technical Field

The utility model relates to cleaning equipment for foreign fibers of seed cotton.

Background

Foreign fibers commonly called as three filaments refer to non-cotton fibers and non-natural cotton fibers mixed into cotton, such as chemical fibers, hair, silk, hemp, plastic films, plastic ropes, dyed threads (ropes, cloth pieces) and the like. Seed cotton is easy to mix with various foreign fibers during picking, storing, transporting and trading, and the world cotton trade organization refers to the foreign fibers as fibrous foreign impurities (fibrous extraneous contamination). The presence of foreign fibers can severely affect cotton grade and lint quality, and therefore foreign fibers mixed in seed cotton often need to be removed prior to ginning.

The mixing of foreign fibers in seed cotton mainly results from the inherent defect of mechanically picking cotton, but with the increasing labor cost and the current situation that farmland operation is more and more difficult to attract young people, mechanically picking cotton is a route which has to be taken, and thus, is widely used at present. In China, a mulching film covering technology is generally adopted in the cotton planting process, and when cotton is mechanically picked, the mulching film is inevitably mixed into the cotton, so that the mulching film becomes the main foreign fiber source in the cotton mechanically picked. This presents a significant hazard to cotton processing enterprises, particularly cotton textile enterprises. Foreign fibers in cotton need to be removed both in cotton processing and in cotton spinning processing to mitigate the impact on the quality of finished products such as clothing.

Regarding the cleaning mode of foreign fibers in cotton processing production lines, the mechanical and air flow mode is adopted at present to clean in the continuous cotton feeding process, and the mode can effectively clean part of the foreign fibers in seed cotton and also can meet a small amount of requirements, but the actual cleaning efficiency is lower, and the maximum cleaning efficiency is only 50% -60%, and a large amount of foreign fibers still remain in seed cotton.

In other implementations, a very complex cleaning mode is adopted, foreign fibers are identified mainly through images, and then the foreign fibers are cleaned through high-speed air flow, so that the input cost is high, the accuracy of identification and cleaning is difficult to ensure, and a large amount of cotton can be blown out, so that the difficulty is brought to subsequent cleaning work.

Since chemical fibers such as mulch films are the most major components of foreign fibers, chemical fibers are characterized by being easily electrostatically charged, and thus, chemical fibers are removed in an electrostatically separated manner in some proposed solutions. Typically, as in chinese patent document CN101570905A, a special seed cotton foreign fiber separator is proposed, which includes a separation chamber, electrode plates are disposed in the separation chamber, and a stirring device is disposed between the electrode plates, so that static electricity is generated on the foreign fibers during stirring, and fluidization characteristics and static electricity characteristics of the foreign fibers are relatively different from those of the seed cotton, so that adsorption of the foreign fibers by the electrode plates is realized. In theory, the electrostatic separation can distinguish foreign fibers and seed cotton, but stirring is easy to cause winding between the foreign fibers and the seed cotton, meanwhile, as seed cotton is usually cleaned and dialed more severely, the flow speed of the seed cotton is also faster, and the electrode plate can quickly adsorb the foreign fibers where the foreign fibers are worth knocking, and meanwhile, the adsorption effect of the electrode plate is gradually reduced along with the increase of adsorption capacity if the foreign fibers are not cleaned timely.

Unlike the higher impact of electrostatic adsorption on seed cotton flow velocity, etc., mechanical separation would have a higher efficiency, and the inventors believe that mechanical separation should be a more appropriate way of separating foreign fibers from seed cotton. The solution proposed in this field is also mainly a mechanical separation mode, such as the earlier-appearing chinese patent document CN103111419a, which proposes a special cotton picker matching residual film separating device, wherein the separating device is configured at the cotton picker side, and a separating chamber is also configured, and a large mesh drum, a small mesh drum and an air blocking device are arranged in the separating chamber, and the residual film is separated by means of the cooperation of the large mesh drum and the small mesh drum by utilizing the difference of the void ratio, specific surface area, density and other physical characteristics of seed cotton and residual film after entering the separating chamber from a cotton inflow port. The separation mode is directly related to the rotating speed of the roller and needs to be matched with proper wind power, so that the requirements on the rotating speed of the roller, the wind power and the matching between the rotating speed and the wind power are high.

Disclosure of utility model

As a mechanical cleaning mode, the utility model aims to provide seed cotton foreign fiber cleaning equipment with relatively high cleaning efficiency.

In a first aspect of embodiments of the present utility model, there is provided a cleaning apparatus for foreign fibers of seed cotton, the basic structure of which includes:

The chamber is provided with a feeding hole at one side of the middle part or the upper part, a cotton outlet at one side of the lower part, an air inlet at one side of the lower part opposite to the cotton outlet, a grid bar grid covered at the air inlet, and a valve plate arranged at the cotton outlet for intermittently opening the cotton outlet;

The dust cage is positioned at the upper part of the main chamber;

The impurity removing device is positioned at one side of the dust cage, and the side is the side away from the feeding hole; the main chamber is provided with a impurity outlet at the side;

And the feeding mechanism is positioned at the feeding port and used for intermittently feeding a given amount of seed cotton.

Optionally, the lower part of the chamber is provided with a separation cavity, and the through flow cross section of the separation cavity is gradually enlarged upwards;

the air inlet and the cotton outlet are both positioned at the bottom of the separation cavity.

Optionally, the air inlet is horizontally connected or obliquely connected with the cavity upwards;

When the chamber is obliquely connected, the grating and the valve plate are obliquely arranged, and the included angle between the plane determined by the grating and the valve plate is 30-90 degrees.

Optionally, an included angle between the plane determined by the grid bars and the horizontal plane is 45-55 degrees.

Optionally, when the air inlet is obliquely upwards connected into the cavity, the air inlet pipeline comprises a horizontal pipeline;

Suitably, the inclined state of the grid bars is adapted by arranging an elbow pipe or an inclined pipe at the tail end of the horizontal pipeline.

Optionally, a cleaning door is arranged on the lower side of the horizontal pipeline.

Optionally, the air source of the air inlet is:

the first type of air source is an air source provided by a variable frequency fan;

The second type of air source is a compressed air source controlled by a reversing valve, and is used for connecting a plurality of seed cotton foreign fiber cleaning devices, and the seed cotton foreign fiber cleaning devices are filled with compressed air in respective preset time periods; or (b)

The third type of air source is an air source which is provided with an opening control air inlet valve.

Optionally, when the feed inlet is located in the middle of the chamber, a cotton storage box is arranged on the side where the feed inlet of the chamber is located so as to buffer cotton flow.

Optionally, an opening cavity is arranged outside the surface inlet;

A seed cotton opening device is arranged in the opening cavity;

The opening cavity is positioned below the cotton storage box.

Optionally, a cotton feeding roller is arranged at the outlet of the cotton storage box so as to convey seed cotton to an opening device positioned below the cotton feeding roller.

Optionally, a side door is arranged on the outer side of the cotton storage box.

In the embodiment of the utility model, the provided seed cotton foreign fiber cleaning equipment adopts intermittent cleaning, specifically, a cotton outlet at one side of the lower part of a cavity is closed, then a part of seed cotton is fed into the cavity, the seed cotton falls down under the gravity, and working wind blown into an air inlet at the other side of the lower part of the cavity blows the seed cotton, the seed cotton and the mixed foreign fiber have different specific gravity and specific surface area to generate separation effect, the flying foreign fiber is captured by a dust cage, and the foreign fiber captured by the dust cage can be peeled off by a trash discharging device to be discharged from the trash outlet. After seed cotton is cleaned in the chamber for a preset time, the cotton outlet is opened, the air pressure in the chamber is reduced or the air inlet is completely stopped from air inlet, and the seed cotton loses the air pressure jacking and is led out from the cotton outlet. Because the foreign fibers are separated out by adopting wind power, mechanical dialing can not be generated, the foreign fibers are not broken and deep entanglement with cotton fibers can not be caused, better cleaning effect can be easily obtained, and the cotton fibers are not broken by wind power separation, so that the cotton fibers are not damaged by mechanical cleaning.

Drawings

Fig. 1 is a schematic main sectional structure of a seed cotton foreign fiber cleaning device in an embodiment.

FIG. 2 is a schematic diagram of a shaft-side structure of a seed cotton foreign fiber cleaning apparatus in an embodiment.

FIG. 3 is a schematic diagram of another axial side structure of a seed cotton foreign fiber cleaning apparatus according to an embodiment.

FIG. 4 is a schematic diagram of a grid structure in an embodiment.

Fig. 5 is a schematic view of a valve plate according to an embodiment.

In the figure: 1. the support legs, 2, 3, cleaning door, 4, air inlet, 5, viewing window, 6, straight channel, 7, speed reducer, 8, drive chain, 9, bench, 10, spike roller, 11, loosening cavity, 12, feed roller, 13, storage hopper, 14, side door, 15, viewing window, 16, feed inlet, 17, removing cavity, 18, dust cage, 19, impurity roller, 20, diffusion cavity, 21, impurity outlet, 22, viewing window, 23, separating cavity, 24, throat cavity, 25, viewing window, 26, hinge shaft, 27, grille, 28, 29, cotton outlet, 30, elbow, 31, tensioning wheel, 32, driven pulley, 33, impurity roller, 34, small sprocket, 35, service opening, 36, tensioning wheel, 37, large sprocket, 38, dust cage shaft, 39, flange, 40, double sided V-belt, 41, first feed roller, 42, second feed roller, 43, spike roller, 44, 45, pulley, 45, electric motor, 48, flange, 48, drive shaft, 48, flange, 48, 53, and sealing joint.

Description of the embodiments

In an embodiment of the utility model, the seed cotton foreign fiber cleaning device is provided as a wind-based cleaning mode, unlike the traditional mechanical cleaning mode. It will be appreciated by those skilled in the art that for example mulch films, even breezes can be blown up, whereas for example cotton processing lines, the more common dust cages 18 are used, which tend to be in the form of negative pressure for adsorbing material onto the cage wire, whereby the negative pressure at the dust cage 18 creates a first impurity removing force.

In the preferred embodiment, the wind speed of the wind fed from the wind inlet 4 is generally controlled to be more than 10m/s, preferably 15m/s, for the wind inlet 4, and the skilled person can adjust the wind speed according to the impurity content of the seed cotton after impurity removal, especially under the condition of wide use of variable frequency fans, for example.

The air inlet 4 is used for generating a second impurity removing force, and the foreign fibers and dust mixed in the seed cotton are conveyed upwards by the first impurity removing force and the second impurity removing force and are discharged through the dust cage 18 and the impurity removing device.

It will also be appreciated that although in the embodiments of the utility model the emphasis is placed on the removal of foreign fibres such as mulch, dust such as seed cotton, due to its large specific surface area, is also removed by the negative pressure system with the suction opening of the dust cage 18.

For heavy impurities such as stone mud blocks and the like, the specific gravity of the heavy impurities is larger than that of seed cotton, and the heavy impurities cannot be supported by the wind force of the air inlet to meet the technical requirements of the utility model, and fall, particularly fall into an outlet structure of an air duct corresponding to the grid 27 illustrated in fig. 1, namely most of the heavy impurities directly enter an air inlet pipeline. In the structure illustrated in fig. 1, a cleaning door 3 is provided at the lower side of the straight passage 6 of the air duct, and cleaning of the foreign matters can be performed periodically or according to the accumulation amount determined by the observation window 5 in the figure.

Based on the above description, in an embodiment of the utility model, a chamber is first provided, whereby a separation space and a wind-working channel are constructed, which separation space accordingly also forms part of the wind-working channel. And based on the principle of the utility model, the seed cotton after being discharged needs to be discharged through a cotton outlet 29 positioned at the lower part of the chamber mainly by the action of gravity, so that in the embodiment of the utility model, the chamber is provided with an upper-lower structure, and a basic reference system is determined.

The chamber has defined internal and external characteristics based on which the relative relationship between the internal and external can be clearly distinguished by those skilled in the art.

In the following description, the characteristics of the chamber will be described in great importance, and in the manner of construction thereof, which is more common in the field of cotton processing plants, will be briefly described, provided that the characteristics of the chamber are clearly characterized.

The structure illustrated in fig. 1 has obvious sheet metal construction features, and the primary construction of the chamber is also constructed in a sheet metal-based manner.

In fig. 1, the dust cage 18 is axially oriented in the width direction, i.e., the left-right direction, as is conventional for cotton processing equipment, and the left-right direction shown in fig. 1 is generally referred to as the fore-aft direction. Wherein the width direction corresponds to the spoke width, the cotton storage box 13 shown in fig. 1 is a rectangular cotton box, a certain span is provided in the left-right direction, and the reasonable distribution of seed cotton in the spoke direction can be ensured by buffering of the cotton storage box 13.

In fig. 1, in the left-right direction, a wall plate may be provided as a mounting base for the sheet metal member. The wall panels are then fastened to the rack 9 and the uprights and/or longitudinal girders, for example as shown in the figures.

In the figure, for example, the uppermost part forming the approximately rectangular dome-shaped part at the upper end of the impurity removing cavity 17 is a rib at the left and right ends of the corresponding sheet metal part, and the rib is provided with, for example, screw holes so as to be fixedly connected with the corresponding end wall plate by using, for example, screws, thus forming a cavity structure. And the rest cavities are manufactured by reference.

For convenience of description, the assembly of the impurity removing chamber 17, the separating chamber 23, the laryngeal chamber 24 and the like shown in fig. 1 will be referred to as a chamber, and the assembly of other structures is adapted in azimuth.

In the structure illustrated in fig. 1, the feed port is provided at the middle of the chamber, and it is considered that the cotton storage tank 13 is disposed at one side of the chamber in order to reduce the overall height under the condition that the cotton storage tank 13 is disposed.

In fig. 1, a side door 14 is provided on one side of the hopper 13 to facilitate handling in case of e.g. choking of seed cotton. The viewing window 15 in the figure is used to view the stock of seed cotton in the cotton storage bin 13, the appropriate stock helping to ensure the relative uniformity of distribution of seed cotton in the machine direction.

In order to ensure the relative accuracy of cotton feeding, in fig. 1, a pair of cotton feeding rollers 12 are arranged at the lower end of a cotton storage box 13, and cotton is fed in a clamping manner.

An opening chamber 11 is provided at the lower side of the feed roller 12, and a cotton inlet is provided at the right side of the opening chamber 11 in the figure, that is, an outlet of the opening chamber 11.

The opening cavity 11 is internally provided with the spike roller 10 so as to open the fed seed cotton, so that relatively fluffy seed cotton flows are easier to comb by wind force, and the cleaning efficiency is improved.

In addition, the feed inlet is not preferably arranged too high, and if so, seed cotton flows can collide with the dust cage 18 during feeding, so that part of seed cotton is directly adsorbed by the dust cage 18.

In the structure illustrated in fig. 1, the feed inlet is relatively far from the dust cage 18, and seed cotton with relatively large specific gravity is not adsorbed by the dust cage 18 unless the suction force of the dust cage 18 is abnormal under the condition of meeting the requirement of the adsorption of lightweight foreign fibers. In the embodiment of the utility model, however, the air flow into the air inlet 4 is required to turn over a quantity of seed cotton that enters the chamber, and it is not required that seed cotton be blown directly into the dust cage 18.

In the structure illustrated in fig. 1, the dust cage 18 is offset to the rear side in the front-rear direction defined by the inlet and the outlet 21, that is, to the side where the outlet 21 is located, and the distance between the inlet and the dust cage 18 is further increased.

The feed inlet is used for being connected with feed equipment adaptation, if adopt artifical material loading, then can set up the feed inlet shrouding in feed inlet department, if feed inlet shrouding lower extreme passes through the hinge dress in feed inlet department, the upper end sets up for example the spring bolt to be used for manual work to open or close. The feed inlet is closed after each dispensing of a quantity of seed cotton.

For the structure shown in fig. 1, the feeding device such as the cotton storage tank 13 can play a certain role in sealing due to the existence of seed cotton, and the working mode (negative pressure adsorption) of the dust cage 18 is adopted, so that air flow can be discharged through the dust cage 18 instead of passing through the feeding hole, and therefore, the sealing problem at the feeding hole can not be considered as important matters.

In connection with the dust cage 18, the drive means of which are not shown in fig. 1, but in the field of cotton processing technology, the dust cage is a relatively common device which is generally supported on a wall plate by, for example, a through shaft or a half shaft, and an air suction port is formed by, for example, a tube shaft of the half shaft, or an air suction port which is movably connected can be assembled at one or both ends of the dust cage 18, and is connected with an induced draft fan by an air suction pipe and a dust removing device. The dust cage 18 has a degree of freedom to rotate about its own axis and is driven in rotation. The dust cage 18 has a dust cage mesh surface to form an adsorption surface, for example, a mulching film is adsorbed on the dust cage mesh surface, and fine impurities penetrate through the mesh openings of the dust cage mesh surface to enter an air suction pipe and are finally removed by, for example, a dust removing device.

Figures 2 and 3 show a drive arrangement for the dust cage 18, figures 2 and 3 being schematic with respect to two angles from opposite sides, in which the dust cage 18 in figure 3 is open ended with a negative pressure tuyere flange 49 for coupling with a suction duct. Fig. 2 shows the drive end of the cage 18, at which end the cage 18 is sealed, a flange cover 39 as shown in fig. 2 seals the other end of the cage 18, a large sprocket 37 is mounted on the flange cover 39 or the cage shaft 38, the sprocket shaft of the small sprocket 34 is driven by the small sprocket 34 by means of a transmission chain mechanism, the sprocket shaft of the small sprocket 34 is the impurity-removing roller shaft 33 shown in fig. 2, and the impurity-removing roller shaft 33 forms the shaft of the impurity-removing roller 19.

The small sprocket 34 shares the impurity removing roller shaft 33 with the driven pulley 32 in the configuration illustrated in fig. 2, and the driven pulley 32 is driven by the driving pulley 45 through the belt transmission mechanism. A driving pulley 45 is mounted at one end of the spike roller shaft 44, and the other end of the spike roller shaft 44 is shown in the configuration illustrated in fig. 3 as being provided with an input pulley which is driven by a motor 46 via a belt transmission mechanism 47.

The motor 46 is preferably an explosion-proof motor, which itself is explosion-proof if, for example, a hydraulic motor is selected.

In fig. 1, the dust cage 18 rotates clockwise from the direction shown in the drawing, and a trash-removing roller 19 is disposed on the lower right side of the dust cage 18 in fig. 1, for peeling off, for example, a mulching film adsorbed on the dust cage 18, and drops into a trash outlet 21.

The driving of the impurity removing roller 19 is already clear from the foregoing description of the driving method of the dust cage 18, and will not be described in detail here.

The impurity outlet 21 is located at the right lower part of the impurity removing roller 19 in the structure illustrated in fig. 1, and is provided on both sides of the impurity removing roller 19 in correspondence with the dust cage 18.

The right side of the lower part of the chamber in fig. 1 is provided with a cotton outlet 29, the cotton outlet in the drawing mainly relies on gravity, and in some embodiments, the cotton outlet can also be achieved by wind power of an air suction pipeline connected with the air inlet or the cotton outlet 29.

In the technical field of cotton processing equipment, wind power is generally used for conveying seed cotton, and the cotton outlet 4 shown in fig. 1 can be connected with a pipeline to connect downstream cotton processing production line process equipment, such as a dust cage mechanism of a next stage.

Based on the foregoing principle, it is necessary to introduce a dynamic air to "boil" seed cotton entering the chamber, so that, for example, the dynamic air is introduced through a pipe at the left side of the lower end of the chamber as shown in fig. 1, and as described above, the speed of the dynamic air is controlled to be 10m/s or more, so that foreign fibers can be effectively blown out, and at the same time, seed cotton can be ensured to boil, and in the boiling process, besides foreign fibers, some dust with relatively large specific surface area and a small amount of broken cotton leaves or the like can be adsorbed by the dust cage 8 or pass through the mesh surface of the dust cage.

Boiling here is understood to be that water boiling relies primarily on convection, whereas boiling in the embodiments of the utility model relies on wind forces to cause seed cotton to tumble under wind forces.

Some heavy impurities cannot be pushed by wind force to generate sedimentation, and enter the air inlet pipeline through the grid bars 27, which are described above, can be cleaned regularly, and are not described herein.

In fig. 1, the air inlet is defined on a chamber basis, and corresponds to the end of the elbow 30 in the exemplary structure of fig. 1, and the air inlet is provided with a grid 27 to separate seed cotton and prevent the seed cotton from entering the air inlet pipe. Of course, unexpanded seed cotton such as stiff petals still may fall into the air inlet duct, and the avoidance here should be to avoid that normally flowering seed cotton falls into the air inlet duct.

The cotton outlet 29 is provided with a valve plate 28, and the valve plate 28 is intermittently opened, wherein the intermittent operation is opened only when the seed cotton in the chamber needs to be led out after the cleaning is finished, and is closed afterwards.

In the structure illustrated in fig. 1, the control portion of the valve plate 28 is not shown, and the valve plate 28 in the drawing can be simply understood as a two-position three-way valve plate 28, and the air inlet is not controlled. Of course, in some embodiments, the valve plate 28 may also control the first position where the air inlet, such as the air inlet, communicates with the chamber and the second position where the air outlet, together with the chamber, is used to determine the basic state of the valve plate 28, based on which, as well as the foregoing, the operating state of the valve plate 28 may be determined.

Therefore, the control manner of the valve plate 28 in the embodiment of the present utility model belongs to a simple control manner of the valve plate 28, and can be implemented by those skilled in the art without performing creative labor on the basis of the technical content described in the present utility model.

In the structure illustrated in fig. 3, a control manner of the valve plate 28 can be seen, wherein the valve plate shaft 50 of the valve plate 28 extends from one side or both sides of the wall plate, and the extending part forms a shaft head for fixedly connecting the rocker 51 shown in the drawing.

Further, the end of the rocker 51 is hinged to a push rod of an electric push rod 52, and the seat of the electric push rod 52 is hinged to the wall plate, so as to construct a triangle mechanism, the rocker 51 can be swung by means of the triangle mechanism by means of the expansion and contraction of the electric push rod 52, and the swing rotation angle range enables the valve plate 28 to have the same rotation angle range due to the fixed connection of the rocker 51 and the valve plate shaft 50, so that the rotation angle of the valve plate 50 can be accurately controlled.

As can be seen from the structure illustrated in fig. 1, the current state of the valve plate 28 is a state of blocking the cotton outlet 29, and the cotton outlet 29 can be turned on by counterclockwise rotation. The angular range is not large in the structure illustrated in fig. 1, and the maximum angular range is 50 degrees or less in the structure illustrated in fig. 1.

Fig. 5 shows a basic construction of a valve plate 28, which comprises a rectangular rigid plate body 57, which plate body 57 may be, for example, a stainless steel plate or a resin plate. The long side direction is the spoke direction, and a valve plate shaft 50 is arranged at one long side edge. The edges of the other three sides of the plate 57 are then provided with a stripper rubber 56 which is typically anchored to the plate 57 using rivets 55.

While the above description has been made regarding the several ports of the chamber, and in terms of position, in the structure illustrated in fig. 1, the cotton inlet port is located on the same side as the air inlet port, and the cotton outlet port 29 is located on the same side as the impurity outlet port 21, it should be understood that, since the correlation between the two ports located at the lower end and the two ports located at the upper middle part is relatively weak, the arrangement illustrated in the figure is only one of the arrangements, and other arrangements can be selected besides the correlation.

For machine-based, manually-assisted applications, it is often necessary to configure a feed mechanism, which is correspondingly located at the feed port, to intermittently feed a given amount of seed cotton.

Intermittent feeding consists in separating the foreign fibers by blowing seed cotton upwards in the embodiment of the utility model, and if continuous feeding, the latter feeding tends to press on top of the former feeding, affecting the separation of the foreign fibers.

Based on the above structure, the cotton outlet 29 is closed firstly, that is, the discharging is stopped, then a part of seed cotton, for example, 5kg, is fed into the cavity, and the seed cotton is adapted according to the specification of the product and the processing capacity or requirement of each time, for example, the product scale is large, and the requirement of the production line on the amount of seed cotton is high, so that more seed cotton can be processed at one time.

In addition, many unginned cotton foreign fiber cleaning equipment can use in parallel, and many unginned cotton foreign fiber cleaning equipment simultaneously feed for a cotton processing production line to in order to guarantee the continuity of production line feed, many unginned cotton foreign fiber cleaning equipment can adopt the mode of discharging in order to dispose.

For the air inlet, the air inlet can be in a normally open mode or an intermittent opening and closing mode. After, for example, one part of seed cotton enters the cavity, the air inlet is in a working state, the seed cotton is rolled by using wind force, and foreign fibers in the seed cotton are blown out, and the foreign fibers are blown to the dust cage 18 due to different specific gravities, and the dust cage 18 side also has suction force, so that the foreign fibers are adsorbed on the net surface of the dust cage.

Regarding the rolling time of seed cotton, wind is supplied at a wind speed of 15m/s for 5s, so that most foreign fibers are removed, and through verification, the mode can obtain the foreign fiber cleaning efficiency of 90% and above, which is far higher than the cleaning efficiency of about 50% -60% of the conventional seed cotton cleaning machine.

Further, for example, the fan of the air inlet adaptation is down-converted, stopped or the air inlet is closed, the seed cotton falls under the action of gravity, the cotton outlet 29 is opened, and the seed cotton is led out

After the cleaned seed cotton is led out, the valve plate 28 returns, the cotton outlet 29 is closed again, and a part of seed cotton is fed into the feed inlet again, and is cleaned sequentially according to the previous steps.

If the flower feeding can be performed under the control of the feeding mechanism, the difference between the front and rear flower feeding parts is not large, and the precision of each flower feeding part is easy to control. In particular, for example, 5kg of flowers per feeding, even with an error range of 20%, is not sufficient to cause choking of the system.

In the embodiment of the utility model, the cavity volume of the seed cotton foreign fiber cleaning equipment with corresponding working capacity, which corresponds to the amount of 5kg of seed cotton fed each time, is about 1 cubic meter, and the 5kg of seed cotton occupies a small proportion, which is insufficient for causing the problems of choking and the like due to the reasons of pure feeding precision.

In addition, the wind speed of the wind introduced from the air inlet is 15m/s, which is enough to ensure that seed cotton can float up and down in the cavity to be in a boiling state, and meanwhile, air flow can pass through a loose seed cotton gap to separate foreign fibers attached to the seed cotton. As described above, the foreign fiber separation efficiency thus obtained can be up to 90% or more.

With respect to the amount of flowers to be fed, also in relation to, for example, the moisture regain of seed cotton, the impurity content, etc., the on-site operator can adjust the amount of feed each time according to the impurity removal of seed cotton.

Further, as shown in the lower part of fig. 1, the lower part of the chamber is provided with a separating cavity 23 which is gradually enlarged upwards, so that seed cotton can be more effectively controlled to be in the boiling state, specifically, as the lower part of the separating cavity 23 is thinner, the wind pressure is highest, the cross-sectional area is enlarged along with the upward direction of the separating cavity 23, and the wind pressure is weakened, by means of the structure, on one hand, seed cotton can be blown up, but after lifting to a certain height, the wind pressure is reduced, the upward movement can not be continued, and therefore, the blowing-up height of seed cotton can be controlled, and under the condition of meeting separation, the seed cotton is not captured by a dust cage 18.

Accordingly, the air inlet and the cotton outlet 29 are both positioned at the bottom of the separation chamber 23.

Further, in fig. 1, a throat cavity 24 is further provided at the lower end of the separation cavity 23, and the cross-sectional area of the throat cavity 24 is basically unchanged, mainly used for avoiding too fast reduction of wind pressure, so as to ensure that seed cotton can be in a boiling state as a whole.

Regarding the arrangement of the air inlet and the cotton outlet 29, in the structure illustrated in fig. 1, an air inlet pipeline corresponding to the air inlet is shown to comprise two parts, namely a straight channel 6 and an elbow 30, wherein the elbow 30 is in a raised state, and the state of the air outlet is determined, in the figure, the inclined state of the grating 27 is used for describing, and the air outlet is also in an inclined state, so that material dripping is facilitated, namely, the air outlet stops air outlet or reduces wind force, and seed cotton falls down to the proper state.

The lower side panel of the cotton outlet 29 is in a state of flowing material with the grid bars 27 in sequence for connection.

In addition, in order to make seed cotton dripping easier, the lattice bars 54 in the lattice bars 27 illustrated in fig. 4 may be cylindrical lattice bars 54 or round rectangular lattice bars 54, and when round rectangular lattice bars 54 are used, the long sides of the lattice bars are perpendicular to the frame 53 of the lattice bars 27, and the short sides thereof are parallel to the frame 53.

In the preferred embodiment, either cylindrical bars 54 or rounded rectangular bars 54 are used, which are mounted on the frame 53 in a semi-buried manner so that the frame 53 does not directly contact the seed cotton, and the rounded rectangular and cylindrical sides are relatively rounded to facilitate drooling.

The frame 53 generally comprises two end plates, and if necessary one or more support plates, and is mainly the end plates and support plates, which need to avoid direct contact with seed cotton, and the rest of the grating bars 27 are not highlighted by the embodiment of the present utility model and are common knowledge in the art and will not be described in detail herein.

The valve plate 28 in fig. 1 is also in an inclined state, the purpose of the inclined state of the valve plate 28 can be clearly distinguished from fig. 1, the elbow 30 is connected with the throat cavity 24 in a channel form, and the cross-sectional area of the channel part of the valve plate 28 communicated from the air outlet to the throat cavity 24 is approximately equivalent through the inclined state.

And because seed cotton is discharged based on gravity, the seed cotton can be discharged by suction in some embodiments, even though the seed cotton is more easily discharged when the seed cotton outlet 29 is formed obliquely downwards, the inclined valve plate 28 is shown in fig. 1, and a better swinging space can be obtained, so that the seed cotton is more beneficial to the arrangement in the seed cotton outlet 29.

The air outlet determines the angle of the grating bars 27, and the grating bars 27 are components of three-dimensional form, but do not affect the field of the art for determining the installation angle thereof, and the plane determined by the grating bars can be determined by taking the axis of the cylindrical grating bars as a reference, and the plane in which each axis is located can be simply recorded as the plane thereof. Correspondingly, the included angle between the plane defined by the grating and the valve plate 28 is 30-90 degrees. Wherein, the plane that the grid determined is 45~55 degrees with the contained angle of horizontal plane, also can confirm valve plate 28 from this. It will be appreciated that valve plate 28 is a movable member, but most of the time is in the position of fig. 1 in which outlet 29 is blocked, and therefore, an accurate description of the angle should be when valve plate 28 is in the state of closing outlet 29.

In some embodiments, the air intake duct may be a horizontally disposed channel in its entirety, and based on communication, although this may result in some loss of wind power, the need of the present utility model may still be met, in which case the grille 27 may be disposed vertically, and the valve plate 28 may be located directly below the laryngeal cavity 24 when the cotton outlet 29 is in the closed state. The disadvantage of this structure is that it is disadvantageous for the evacuation of heavy impurities.

Therefore, in the preferred embodiment, the air inlet is obliquely connected to the chamber, and the air inlet pipeline can be integrally arranged as an inclined pipeline, or the air inlet pipeline structure with a horizontal pipeline as illustrated in fig. 1 can be adopted, wherein the horizontal pipeline is a straight pipeline 6 in the drawing, so as to be different from the elbow 30.

Suitably, the inclined state of the grid bars 27 is adapted by providing bent pipes or inclined pipes at the ends of the horizontal pipes. Because of the presence of the elbow 30, the grating 27 is positioned below the laryngeal cavity 24, which is beneficial for heavy impurities to fall into the air inlet pipeline.

Further, as shown in fig. 1, a cleaning door 3 is provided at the lower side of the straight channel 6, and after the heavy impurities accumulate to a certain extent, the heavy impurities can be cleaned by opening the cleaning door 3.

The simple cleaning door 3 may be arranged in such a way that its left end is hinged to the lower wall of the straight channel 6, forming a hinged door structure, which can be turned clockwise to close the doorway, and then locked, for example, using a latch or other structure. When the door is opened, the bolt is pulled out.

Regarding the air source of the air inlet adaptation, in the preferred embodiment, a variable frequency fan is used as the air source, so that the control is relatively easy, and the fan does not need to be started and stopped frequently.

As mentioned above, a plurality of seed cotton foreign fiber cleaning devices can be provided for one production line, and the seed cotton foreign fiber cleaning devices can respectively have respective air sources, or can share the air sources, for example, a relatively large fan or a plurality of fans are combined for use, so as to form a compression system. The air is supplied to each seed cotton foreign fiber cleaning device through a pipeline branch, and the electromagnetic valve is arranged on the branch, so that the air supply of the seed cotton foreign fiber cleaning devices is needed in the same time period, and the air supply of the system is basically in a relatively stable state.

Even if each seed cotton foreign fiber cleaning device is provided with an independent air source, the control can be performed by using a valve with opening control.

In view of the wide use of variable frequency motors, variable frequency fans are also commonly used, as described above, the working wind speed is assumed to be 15m/s, when the variable frequency motors are discharged, that is, discharged after one part of variable frequency motors are cleaned, the wind speed can be reduced to below 5m/s, discharging can be satisfied, and if the discharging speed is influenced too much, the wind speed can be further reduced.

Claims

1. Seed cotton foreign fiber cleaning equipment, characterized by, include:

The dust cage is positioned at the upper part of the main chamber;

2. Seed cotton foreign fiber cleaning apparatus according to claim 1, wherein the lower part of the chamber has a separation chamber with a through-flow cross section gradually expanding upward;

3. Seed cotton foreign fiber cleaning apparatus according to claim 2, wherein the air inlet is horizontally or obliquely connected to the chamber;

4. A seed cotton foreign fiber cleaning apparatus according to claim 3, wherein the included angle between the plane defined by the grating and the horizontal plane is 45-55 degrees.

5. A seed cotton foreign fiber cleaning apparatus according to claim 3, wherein the air inlet pipe comprises a horizontal pipe when the air inlet is connected to the chamber obliquely upward;

6. Seed cotton foreign fiber cleaning apparatus according to claim 5, wherein a cleaning door is provided at the lower side of the horizontal pipe.

7. The seed cotton foreign fiber cleaning device according to any one of claims 1 to 6, wherein the air source of the air inlet is:

8. The seed cotton foreign fiber cleaning apparatus according to claim 1, wherein the cotton storage tank is arranged on the side of the feeding port of the chamber to buffer cotton flow when the feeding port is positioned in the middle of the chamber.

9. The seed cotton foreign fiber cleaning apparatus according to claim 8, wherein the outside of the inlet is an opening cavity;

A seed cotton opening device is arranged in the opening cavity;

The opening cavity is positioned below the cotton storage box.

10. A seed cotton foreign fiber cleaning apparatus according to claim 9, wherein a cotton feeding roller is provided at the outlet of the cotton storage tank to feed seed cotton to an opening device located below the cotton feeding roller.

11. The seed cotton foreign fiber cleaning apparatus according to claim 8, wherein a side door is provided at an outer side of the cotton storage tank.