CN217857357U - Impurity removing equipment - Google Patents

Abstract

The application provides impurity removal equipment which comprises a screening device, a negative pressure sorting device and a flotation device which are connected in sequence; the screening device comprises a first inlet end and a first discharge end, the negative pressure sorting device comprises a second inlet end, and materials to be sorted can enter the screening device through the first inlet end and enter the negative pressure sorting device through the first discharge end and the second inlet end in sequence; the negative pressure sorting device also comprises a negative pressure channel, a second discharge end and a third discharge end, wherein the negative pressure channel is communicated with the second inlet end, the second discharge end and the third discharge end so as to drive materials with weight less than a first set value to move along the negative pressure channel and discharge the materials from the second discharge end through negative pressure, and the materials with weight more than the first set value are discharged from the third discharge end; the flotation device comprises a third inlet end, and a third discharge end is arranged corresponding to the third inlet end. This edulcoration equipment can treat the material of edulcoration and carry out the edulcoration respectively according to size fraction, weight and density characteristic, has effectively improved and has removed impurity volume.

Description

Impurity removing equipment

Technical Field

The application belongs to the technical field of agricultural equipment, concretely relates to edulcoration equipment.

Background

With the development of science and technology, agricultural mechanized production is also more and more widely applied. Impurity removal is an important part in agricultural production and is a process for separating impurities from fruit products.

However, in the prior art, the impurity removal equipment is single, and usually, the impurity removal is only carried out through screening, so that the impurity removal effect is poor, and the subsequent processing procedure is seriously influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem that this application will be solved provides an impurity removal equipment, can improve and remove impurity quantity, the follow-up processing of being convenient for.

In order to solve the problems, the application provides impurity removing equipment which comprises a screening device, a negative pressure sorting device and a flotation device, wherein the screening device, the negative pressure sorting device and the flotation device are connected in sequence;

the screening device comprises a first inlet end and a first discharge end, the negative pressure sorting device comprises a second inlet end, and materials to be sorted can enter the screening device through the first inlet end and enter the negative pressure sorting device through the first discharge end and the second inlet end in sequence;

the negative pressure sorting device further comprises a negative pressure channel, a second discharge end and a third discharge end, wherein the negative pressure channel is communicated with the second inlet end, the second discharge end and the third discharge end so as to drive materials with the weight smaller than a first set value to move along the negative pressure channel and be discharged from the second discharge end through negative pressure, and enable materials with the weight larger than the first set value to be discharged from the third discharge end;

the flotation device comprises a third inlet end, and a third discharge end is arranged corresponding to the third inlet end.

Alternatively, the negative pressure sorting apparatus may include a sorting chamber which is a part of the negative pressure channel, the second inlet end and the third discharge end are provided on the sorting chamber, and the second inlet end is provided on a downstream side of the third discharge end in a flow direction of the air flow in the sorting chamber.

Optionally, the third discharge end is located below the second inlet end, and the airflow is directed upwardly within the sorting chamber so as to move material having a weight less than the first set point upwardly within the sorting chamber, and material having a weight greater than the first set point downwardly within the sorting chamber by its own weight and discharged from the third discharge end.

Optionally, the negative pressure sorting apparatus further includes a settling chamber, the settling chamber is communicated with the negative pressure channel, the settling chamber is located on a downstream side of the sorting chamber along the flow of the air stream, and an overflow cross-sectional area of the settling chamber is greater than an overflow cross-sectional area of the sorting chamber.

Optionally, a wind shield can be rotatably arranged below the interior of the settling chamber, the wind shield is connected with a first driving part, and the first driving part is used for driving the wind shield to rotate so as to divide the settling chamber into an upper space and a lower space.

Optionally, the negative pressure sorting apparatus further includes a fan, the fan is disposed on the settling chamber, and the fan is configured to drive the airflow to flow out of the negative pressure sorting apparatus through the negative pressure channel and the settling chamber, so as to form a negative pressure in the settling chamber.

Optionally, the edulcoration equipment is still including throwing the material device, it includes feed inlet and bin outlet to throw the material device, the bin outlet with first entry end sets up relatively, it is used for entering to throw the material device the material of feed inlet passes through the bin outlet is arranged extremely in the first entry end.

Optionally, the edulcoration equipment still includes the conveyer, the conveyer sets up the sieving mechanism with between the negative pressure sorting unit, the conveyer respectively with first discharge end with the second entry end sets up relatively, be used for with the discharged material of first discharge end is carried to in the second entry end.

Optionally, the screening device includes a second driving member, a first transmission portion, a second transmission portion, a mesh belt and a vibration portion, the second driving member includes an output end, the output end is connected with the first transmission portion and the second transmission portion respectively, so as to drive through the first transmission portion the mesh belt moves, and drive through the second transmission portion synchronously the vibration portion moves, so that the vibration portion drives the mesh belt to vibrate.

Optionally, flotation device includes flotation tank, first promotion portion and second promotion portion, be provided with the flotation liquid in the flotation tank, first promotion portion includes first dip section and first discharge section, first dip section stretches into in the flotation liquid, first dip section with be provided with the blanking passageway between the inner wall of flotation tank, first discharge section is located the flotation liquid is outer and stretch out to outside the flotation tank, second promotion portion sets up the below of first promotion portion, second promotion portion includes second dip section and second discharge section, the second dip section sets up the below of blanking passageway to make density be greater than the material of the density of flotation liquid can pass the blanking passageway falls to on the second dip section, the second discharge section is located outside the flotation liquid and stretch out to outside the flotation tank.

Advantageous effects

The embodiment of the utility model provides an in the edulcoration equipment that provides, through setting gradually sieving mechanism, negative pressure sorting unit and flotation device, the material that can treat the edulcoration carries out the edulcoration respectively according to size fraction, weight and density characteristic, has effectively improved the impurity removal volume, avoids too much debris to get into follow-up processing step, reduces the influence to follow-up processing, improves follow-up processingquality.

Drawings

FIG. 1 is a schematic structural diagram of a shaker in an embodiment of the present application;

FIG. 2 is a top view of a shaker in accordance with an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a negative pressure classifier according to an embodiment of the present disclosure;

FIG. 4 is a left side view of the negative pressure sorter of an embodiment of the present application;

FIG. 5 is a top view of an under pressure sorter according to an embodiment of the application;

FIG. 6 is a schematic structural diagram of a screening apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a flotation device according to an embodiment of the present application.

The reference numerals are represented as:

1. a screening device; 11. a first inlet end; 12. a first discharge end; 13. a second driving member; 14. a first transmission unit; 15. a second transmission part; 16. a vibrating section;

2. a negative pressure sorting device; 21. a second inlet end; 22. a second discharge end; 23. a third discharge end; 24. a sorting chamber; 25. a settling chamber; 26. a wind deflector; 27. a fan; 28. an adjusting plate;

3. a flotation device; 31. a third inlet end; 32. a first lifting portion; 33. a second lifting portion; 34. a flotation tank;

4. a feeding device;

5. and (5) a transportation device.

Detailed Description

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

With reference to fig. 1 to 7, according to an embodiment of the present application, an impurity removing apparatus includes a screening device 1, a negative pressure sorting device 2, and a flotation device 3, where the screening device 1, the negative pressure sorting device 2, and the flotation device 3 are connected in sequence;

the screening device 1 comprises a first inlet end 11 and a first discharge end 12, the negative pressure sorting device 2 comprises a second inlet end 21, and materials to be sorted can enter the screening device 1 through the first inlet end 11 and sequentially enter the negative pressure sorting device 2 through the first discharge end 12 and the second inlet end 21;

the negative pressure sorting device 2 further comprises a negative pressure channel, a second discharge end 22 and a third discharge end 23, wherein the negative pressure channel is communicated with the second inlet end 21, the second discharge end 22 and the third discharge end 23 so as to drive materials with weight less than a first set value to move along the negative pressure channel and be discharged from the second discharge end 22 through negative pressure, and enable materials with weight more than the first set value to be discharged from the third discharge end 23;

the flotation device 3 comprises a third inlet end 31, and the third discharge end 23 is arranged in correspondence with the third inlet end 31.

Through setting gradually sieving mechanism 1, negative pressure sorting unit 2 and flotation device 3, can treat the material of edulcoration and carry out the edulcoration respectively according to size fraction, weight and density characteristic, effectively improved the impurity removal volume, avoid too much debris to get into follow-up processing step, reduce the influence to follow-up processing, improve follow-up processingquality.

Wherein, treat that the material of edulcoration enters into sieving mechanism 1 from the first entry end 11 of sieving mechanism 1 in, screens according to the difference of the size fraction of debris and the size fraction of product through sieving mechanism 1, and the product is discharged from first discharge end 12, and it is interior to arrange to negative pressure sorting unit 2.

Wherein, sieving mechanism 1 still includes first row of miscellaneous end, and the miscellaneous thing of being filtered and discharged is discharged outside the edulcoration equipment through first row of miscellaneous end.

Specifically, the target crop product of the embodiment takes walnut as an example, and impurities such as branches and leaves can be effectively separated from the walnut through the screening device 1.

The negative pressure sorting device 2 is provided with a negative pressure channel, and enables airflow to flow in the negative pressure channel, so that negative pressure is generated, and impurities are removed according to the weight of materials and impurities through the generated negative pressure.

The first set value can be flexibly set according to the self weight of the material and the self weight of sundries mixed in the material.

Specifically, in this embodiment, the fan 27 is arranged to draw air from the negative pressure channel to generate negative pressure, so that the rotation speed of the fan 27 can be adjusted to adjust the magnitude of the first set value.

Specifically, in this embodiment, a walnut is taken as an example, the weight of the walnut is greater than the first set value, and the weight of dust, branches and leaves mixed in the walnut is less than the first set value. Through setting up negative pressure sorting unit 2, the dust that mixes in the walnut and the branch and leaf that is not sieved by sieving mechanism 1 are inhaled to second discharge end 22 along the negative pressure passageway, and then discharge outside the edulcoration equipment through second discharge end 22. The self weight of the walnut is larger than the first set value, the walnut can not be moved to the second discharge end 22 by negative pressure, but falls to the third discharge end 23, and then the separation of the walnut from impurities such as dust, branches and leaves is realized through the third discharge end 23.

Wherein, through setting up flotation device 3, can realize the edulcoration based on the density difference of material and impurity, further improve and remove the impurity volume.

Specifically, a flotation solution is arranged in the flotation device 3, the density of the flotation solution is between useful materials and impurities, and the materials and the impurities are separated through the buoyancy of the flotation solution.

Specifically, in this embodiment, the walnuts are taken as an example, the flotation solution may be water, the walnuts are in a floating state in the water, and impurities, such as stones, which are mixed in the walnuts and are not separated by the screening device 1 and the negative pressure sorting device 2 sink into the water due to the density of the impurities being greater than that of the water, so that the separation of the walnuts and the stones is realized.

The negative pressure sorting apparatus 2 includes a sorting chamber 24, the sorting chamber 24 being a part of the negative pressure passage, a second inlet end 21 and a third discharge end 23 being provided on the sorting chamber 24, and the second inlet end 21 being provided on a downstream side of the third discharge end 23 in a flow direction of the air flow in the sorting chamber 24.

By providing the sorting chamber 24 open positions are provided for the second inlet end 21 and the third discharge end 23, while providing a path for the movement of impurities and useful material.

In this embodiment, the sorting chamber 24 is used for separating the impurities with the weight less than the first set value from the useful materials with the weight more than the first set value.

Wherein the sorting chamber 24 is a hollow chamber, and the sorting chamber 24 is a section of the negative pressure channel, that is, the sorting chamber 24 is one of the components of the negative pressure channel.

The sorting chamber 24 is disposed to extend vertically.

A third discharge end 23 is located below the second inlet end 21 and the airflow flows upwardly within the sorting chamber 24 so as to move material having a weight less than the first set point upwardly within the sorting chamber 24 and material having a weight greater than the first set point downwardly within the sorting chamber 24 by its own weight and is discharged from the third discharge end 23.

By positioning the third discharge end 23 below the second inlet end 21 and causing the gas stream to flow upwardly in the sorting chamber 24, it is possible to remove impurities by means of the gas stream and the weight difference between the valuable material and the impurities.

Wherein the third discharge end 23 is located below the second inlet end 21, and after the material with the weight larger than the first set value enters the separation chamber 24 from the second inlet end 21, the material is discharged from the lower third discharge end 23 because the self weight is larger than the force applied to the material by the airflow.

Wherein the second inlet end 21 opens onto a side wall of the sorting chamber 24 and the third discharge end 23 opens onto a bottom surface of the sorting chamber 24.

Wherein the third discharge end 23 is disposed opposite the third inlet end 31.

In particular, the third discharge end 23 is located directly above the third inlet end 31, and material discharged through the third discharge end 23 falls from the third inlet end 31 into the flotation device 3.

The negative pressure sorting device 2 further comprises a settling chamber 25, the settling chamber 25 is communicated with the negative pressure channel, the settling chamber 25 is located on the downstream side of the sorting chamber 24 flowing along the airflow, and the flow cross-sectional area of the settling chamber 25 is larger than that of the sorting chamber 24.

By providing the settling chamber 25 downstream of the sorting chamber 24 along the flow of the air stream and making the flow cross-sectional area of the settling chamber 25 larger than the flow cross-sectional area of the sorting chamber 24, it is possible to settle and discharge the sundries separated from the sorting chamber 24 and having a weight smaller than the first set value in the settling chamber 25.

Wherein the space of the settling chamber 25 is larger than the space of the sorting chamber 24, and the space change of the air flow and the impurities entering the settling chamber 25 from the sorting chamber 24 is instantaneous change. After the impurities enter the settling chamber 25 from the sorting chamber 24, the space is suddenly increased, so that the air flow speed in the settling chamber 25 is reduced, and the impurities can be settled downwards and fall off.

Wherein the settling chamber 25 also extends substantially vertically.

Wherein the top of the settling chamber 25 is in communication with the top of the sorting chamber 24 and the bottom of the settling chamber 25 is isolated from the bottom of the sorting chamber 24. The gas flow in the separation chamber 24 flows from the separation chamber 24 into the settling chamber 25 via the communicating top portions.

Wherein, be provided with the baffle in the deposit chamber 25, the vertical setting of baffle, the top of baffle is connected with the top inner wall of deposit chamber 25, and the baffle downwardly extending to the top of deposit chamber 25 along the middle part of vertical direction to make the air current flow in the deposit chamber 25 is the U-shaped. That is, the gas flows from the top to the bottom of the settling chamber 25, and then upward after passing through the bottom end of the partition.

Among the two parts of the settling chamber 25 divided by the partition plate, the width of the part on the side close to the sorting chamber 24 is larger than the width of the sorting chamber 24 and smaller than the width of the part on the side far from the sorting chamber 24.

A wind deflector 26 is rotatably disposed below the interior of the settling chamber 25, and the wind deflector 26 is connected to a first driving member for driving the wind deflector 26 to rotate so as to divide the settling chamber 25 into an upper space and a lower space.

Through setting up deep bead 26, can separate for upper space and lower space with the drip chamber 25, block that the air current in the upper space gets into the lower space, after debris fall to the baffle on, through the baffle rotation, make debris fall into the lower space, when blocking the air current and getting into the lower space, still can make debris keep in the lower space.

As an embodiment, a storage box is arranged in the lower space, the storage box is slidably arranged on the shell of the negative pressure sorting device 2, and the storage box can be drawn out to clean the sundries after being filled with the sundries.

As another embodiment, the lower space is provided with a trash discharge port, and the trash falling into the lower space can be discharged out of the negative pressure sorting device 2 through the trash discharge port.

The wind screen 26 is connected to a motor, and the motor drives the wind screen 26 to rotate.

The wind shield 26 includes a plate body and a middle rotating shaft, the middle rotating shaft is disposed along a symmetry axis of the plate body, so that the motor drives the middle rotating shaft to rotate, and further drives the plate body to rotate by using the symmetry axis as a rotation center.

The negative pressure sorting device 2 further comprises a fan 27, the fan 27 is arranged on the settling chamber 25, and the fan 27 is used for driving the airflow to flow out of the negative pressure sorting device 2 through the negative pressure channel and the settling chamber 25 so as to form negative pressure in the settling chamber 25.

By providing the fan 27, negative pressure can be generated in the negative pressure sorting apparatus 2, and negative pressure sorting can be realized.

Wherein, the negative pressure channel of the air inlet end of the fan 27 is provided with an adjusting plate 28, and the adjusting plate 28 can be rotatably arranged on the inner wall of the negative pressure channel. By rotating the adjusting plate 28, the flow area of the negative pressure channel can be adjusted, and the air volume of the fan 27 can be adjusted, so that the first set value can be adjusted. When the useful materials are heavy, the air draft quantity of the fan 27 can be properly increased, and the impurity removal effect is further enhanced. When the useful materials are lighter, the air draft quantity of the fan 27 can be properly adjusted to be small, and then the useful materials are prevented from being removed by mistake.

Wherein, the fan 27 and the adjusting plate 28 are arranged at the top of the negative pressure sorting device 2, and the upward air draft in the settling chamber 25 is realized.

Impurity removing equipment still includes throws material device 4, throws material device 4 and includes feed inlet and bin outlet, and the bin outlet sets up with first entry end 11 relatively, throws material device 4 and is used for passing through the bin outlet with the material that gets into the feed inlet and arranges to first entry end 11 in.

Through setting up feeding device 4, can throw the material to sieving mechanism 1 steadily, guarantee going on steadily of edulcoration.

The feeding device 4 comprises a scraper lifter, and the scraper lifter rotates to drive the material mixed with sundries to move upwards in an inclined mode and feed the material into the screening device 1.

Wherein, the feeding hole of the feeding device 4 is positioned below, and the discharging hole of the feeding device 4 is positioned above. The discharge opening of the charging device 4 is located above the first inlet end 11 of the screening device 1.

The impurity removing equipment further comprises a conveying device 5, wherein the conveying device 5 is arranged between the screening device 1 and the negative pressure sorting device 2, and the conveying device 5 is arranged opposite to the first discharging end 12 and the second inlet end 21 respectively and used for conveying materials discharged from the first discharging end 12 into the second inlet end 21.

Through setting up conveyer 5, can guarantee the stable transportation of material between sieving mechanism 1 and the negative pressure sorting unit 2.

Wherein, the transportation device 5 is a mesh belt conveyor, the mesh belt conveyor is horizontally arranged, the first discharge end 12 is arranged opposite to the inlet end of the mesh belt conveyor, and the second inlet end 21 is arranged opposite to the discharge end of the mesh belt conveyor.

Specifically, the first discharge end 12 is located obliquely above the entrance end of the mesh belt conveyor, and the second entrance end 21 is located obliquely below the entrance end of the mesh belt conveyor, so that the material on the mesh belt conveyor is thrown into the second entrance end 21.

The screening device 1 comprises a second driving piece 13, a first transmission part 14, a second transmission part 15, a mesh belt and a vibration part 16, wherein the second driving piece 13 comprises an output end which is respectively connected with the first transmission part 14 and the second transmission part 15 so as to drive the mesh belt to move through the first transmission part 14, and synchronously drive the vibration part 16 to move through the second transmission part 15 so as to drive the mesh belt to vibrate through the vibration part 16.

Through setting up second driving piece 13 to make an output of drive division be connected with first transmission portion 14 and second transmission portion 15 respectively, and then can drive screening portion and 16 operations of vibration portion in step, can reduce drive component's quantity, only need a drive component can realize driving screening portion and 16 operations of vibration portion, and then reduced vibration separator's manufacturing cost. Through setting up guipure and vibration portion 16, can realize driving the guipure vibration when the screening, strengthen the screening effect.

Wherein, the output end is the end of the drive part for outputting power.

The material is guided into the top of the mesh belt, the material with the size smaller than that of the mesh belt screen hole falls down from the screen hole, and the material with the size larger than that of the mesh belt screen hole is left on the top of the mesh belt and moves along with the mesh belt.

Wherein, vibration portion 16 can set up in the below of guipure, and vibration portion 16 is used for driving the guipure vibration, and then drives the material vibration at guipure top, can realize breaing up the fruit, improves the screening effect.

The second driving member 13 includes a motor and a driving roller, the first driving portion 14 and the second driving portion 15 may be transmission belts, a motor shaft of the motor or a rotating shaft of the driving roller is connected with two rows of belt wheels, wherein the first row of belt wheels is connected with the first driving portion 14, and the second row of belt wheels is connected with the second driving portion 15.

Wherein, vibration portion 16 includes eccentric roller, and the motor passes through second transmission portion 15 and drives eccentric roller and rotate, and eccentric rotation can stably drive screening portion vibration, and simple structure and reliability are high.

Flotation device 3 includes flotation tank 34, first promotion portion 32 and second promotion portion 33, be provided with the flotation liquid in the flotation tank 34, first promotion portion 32 includes first dip section and first discharge section, first dip section stretches into in the flotation liquid, be provided with the blanking passageway between the inner wall of first dip section and flotation tank 34, first discharge section is located outside the flotation liquid and stretches out outside flotation tank 34, second promotion portion 33 sets up the below at first promotion portion 32, second promotion portion 33 includes second dip section and second discharge section, the second dip section sets up the below at the blanking passageway, so that the material that density is greater than the density of flotation liquid can pass the blanking passageway and fall on the second dip section, the second discharge section is located outside the flotation liquid and stretches out outside flotation tank 34.

By arranging the flotation liquid in the flotation tank 34, the separation of the materials with the density less than that of the flotation liquid and the materials with the density greater than that of the flotation liquid can be realized based on the density of the flotation liquid, namely, the materials with the density less than that of the flotation liquid float at the liquid level of the flotation liquid, the materials with the density greater than that of the flotation liquid sink into the flotation liquid, and the materials with the density less than that of the flotation liquid can be collected and discharged outside the flotation tank 34 by arranging the first lifting part 32. By providing the second lifting portion 33 and having the second lifting portion 33 below the first lifting portion 32, material of a density greater than that of the flotation liquid can be collected. Through setting up passageway between the blanking, for the material that is greater than flotation solution density provides the route that falls to second promotion portion 33 to make second promotion portion 33 can arrange the material that is greater than flotation solution density outside flotation tank 34, and then realized having improved operational environment's air quality with heavier material and lighter material separation through flotation solution, avoid because of the operating personnel's that air quality influences healthy.

Wherein the flotation solution can be water.

Wherein the flotation tank 34 comprises a first side and a second side arranged opposite to each other and a third side connected to the first side and the second side, respectively, the first immersion section being arranged adjacent to the first side and the first discharge section extending towards the second side and out of the flotation tank 34. The second dipleg is located adjacent the first side and the second discharge section extends to the second side and out of the flotation tank 34 from the third side to form a spaced distance from the second discharge section for collection.

The mixture to be separated is introduced into the flotation tank 34 from the first side.

Wherein the flotation tank 34 may be a rectangular hollow structure, and the top of the flotation tank 34 is open, which facilitates the pouring of the material and the installation of the first lifting part 32 and the second lifting part 33.

The lengths of the parts of the first lifting part 32 and the second lifting part 33 extending into the flotation solution are long enough and larger than the diameter of the material to be lifted, so that the material can be smoothly lifted.

Wherein the stone remover is used for removing stones mixed in the materials, such as stones mixed in walnuts.

The first lifting portion 32 and the second lifting portion 33 may be a conveyor belt with baffles vertically disposed on a carrying surface of the conveyor belt. The motor is arranged to drive the conveying belt to rotate, so that useful materials and sundries can be lifted.

The embodiment of the utility model provides an in the edulcoration equipment that provides, through setting gradually sieving mechanism 1, negative pressure sorting unit 2 and flotation device 3, the material that can treat the edulcoration carries out the edulcoration respectively according to size fraction, weight and density characteristic, has effectively improved the impurity removal volume, avoids too much debris to get into follow-up processing step, reduces the influence to follow-up processing, improves follow-up processingquality.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing are only preferred embodiments of the present application, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (10)

1. The impurity removing equipment is characterized by comprising a screening device (1), a negative pressure sorting device (2) and a flotation device (3), wherein the screening device (1), the negative pressure sorting device (2) and the flotation device (3) are connected in sequence;

the screening device (1) comprises a first inlet end (11) and a first discharge end (12), the negative pressure sorting device (2) comprises a second inlet end (21), and materials to be sorted can enter the screening device (1) through the first inlet end (11) and sequentially enter the negative pressure sorting device (2) through the first discharge end (12) and the second inlet end (21);

the negative pressure sorting device (2) further comprises a negative pressure channel, a second discharge end (22) and a third discharge end (23), the negative pressure channel is communicated with the second inlet end (21), the second discharge end (22) and the third discharge end (23), so that materials with the weight smaller than a first set value are driven by negative pressure to move along the negative pressure channel and are discharged from the second discharge end (22), and materials with the weight larger than the first set value are discharged from the third discharge end (23);

the flotation device (3) comprises a third inlet end (31), and the third discharge end (23) is arranged corresponding to the third inlet end (31).

2. The impurity removing apparatus according to claim 1, wherein the negative pressure sorting device (2) includes a sorting chamber (24), the sorting chamber (24) being a part of the negative pressure passage, the second inlet end (21) and the third discharge end (23) being provided on the sorting chamber (24), and the second inlet end (21) being provided on a downstream side of the third discharge end (23) in a flow direction of the air flow in the sorting chamber (24).

3. A edulcoration apparatus according to claim 2, characterized in that the third discharge end (23) is located below the second inlet end (21), that the gas flow flows upwards in the sorting chamber (24) to move material having a weight smaller than the first set value upwards in the sorting chamber (24), that material having a weight larger than the first set value moves downwards in the sorting chamber (24) by its weight and is discharged from the third discharge end (23).

4. The impurity removing apparatus according to claim 2, characterized in that the negative pressure sorting device (2) further comprises a settling chamber (25), the settling chamber (25) communicating with the negative pressure passage, the settling chamber (25) being located on a downstream side of the sorting chamber (24) along the flow of the gas stream, and an flow cross-sectional area of the settling chamber (25) being larger than that of the sorting chamber (24).

5. Equipment according to claim 4, characterized in that a wind deflector (26) is rotatably arranged below the interior of the settling chamber (25), the wind deflector (26) being connected to a first drive for rotating the wind deflector (26) for dividing the settling chamber (25) into an upper space and a lower space.

6. A device according to claim 4, characterized in that the negative pressure sorting device (2) further comprises a fan (27), the fan (27) being arranged on the settling chamber (25), the fan (27) being adapted to bring a flow of air out of the negative pressure sorting device (2) via the negative pressure channel and the settling chamber (25) to create a negative pressure in the settling chamber (25).

7. An apparatus according to claim 1, characterized in that the apparatus further comprises a charging device (4), the charging device (4) comprising a feed opening and a discharge opening, the discharge opening being arranged opposite to the first inlet end (11), the charging device (4) being adapted to discharge material entering the feed opening through the discharge opening into the first inlet end (11).

8. An apparatus according to claim 1, characterized in that the apparatus further comprises a transport device (5), the transport device (5) being arranged between the screening device (1) and the negative pressure sorting device (2), the transport device (5) being arranged opposite the first discharge end (12) and the second inlet end (21), respectively, for transporting material discharged from the first discharge end (12) into the second inlet end (21).

9. The impurity removing equipment according to claim 1, characterized in that the screening device (1) comprises a second driving member (13), a first transmission part (14), a second transmission part (15), a mesh belt and a vibration part (16), the second driving member (13) comprises an output end which is respectively connected with the first transmission part (14) and the second transmission part (15) so as to drive the mesh belt to move through the first transmission part (14), and the vibration part (16) is synchronously driven to move through the second transmission part (15), so that the vibration part (16) drives the mesh belt to vibrate.

10. An apparatus according to claim 1, characterized in that the flotation device (3) comprises a flotation tank (34), a first lifting section (32) and a second lifting section (33), that a flotation liquid is arranged in the flotation tank (34), that the first lifting section (32) comprises a first immersion section, which protrudes into the flotation liquid, and a first discharge section, which is arranged between the first immersion section and the inner wall of the flotation tank (34), and which first discharge section is located outside the flotation liquid and protrudes out of the flotation tank (34), that the second lifting section (33) is arranged below the first lifting section (32), that the second lifting section (33) comprises a second immersion section, which is arranged below the discharge channel, so that material having a density higher than the density of the flotation liquid can fall through the discharge channel onto the second discharge section, which is located outside the flotation tank (34) and protrudes out of the flotation tank (34).

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