CN217857357U - Impurity removing equipment - Google Patents

Abstract

The application provides a kind of impurity removal equipment, including a screening device, a negative pressure separation device and a flotation device connected in sequence; the screening device includes a first inlet end and a first discharge end, and the negative pressure separation device includes a second inlet end, the material to be selected can enter the screening device through the first inlet port, and enter the negative pressure separation device through the first discharge port and the second inlet port in turn; the negative pressure separation device also includes a negative pressure channel, a second discharge port end and the third discharge end, the negative pressure channel is connected with the second inlet port, the second discharge end and the third discharge end, so that the material whose weight is less than the first set value is driven by negative pressure to move along the negative pressure channel and from the second discharge end The second discharge end is discharged, and the material whose weight is greater than the first set value is discharged from the third discharge end; the flotation device includes a third inlet port, and the third discharge end is arranged correspondingly to the third inlet port. The impurity removal equipment can remove impurities according to the characteristics of particle size, weight and density of the materials to be removed, which effectively improves the quality of impurity removal.

Description

Cleaning equipment

technical field

The application belongs to the technical field of agricultural equipment, and in particular relates to an impurity removal equipment.

Background technique

With the development of science and technology, agricultural mechanized production has also been more and more widely used. Impurity removal is an important part of agricultural production and is the process of separating impurities from fruit products.

However, in the prior art, the impurity removal equipment is relatively simple, and the impurity removal is usually only performed by screening, and the impurity removal effect is poor, which seriously affects the subsequent processing procedures.

Utility model content

Therefore, the technical problem to be solved in this application is to provide a device for removing impurities, which can improve the quality of removing impurities and facilitate subsequent processing.

In order to solve the above problems, the application provides a kind of impurity removal equipment, including a screening device, a negative pressure separation device and a flotation device, and the screening device, the negative pressure separation device and the flotation device are connected in sequence ;

The screening device includes a first inlet port and a first discharge port, the negative pressure separation device includes a second inlet port, and the material to be selected can enter the screening device through the first inlet port and pass through the screening device in turn. The first discharge port and the second inlet port enter the negative pressure separation device;

The negative pressure separation device also includes a negative pressure channel, a second discharge end and a third discharge end, the negative pressure channel communicates with the second inlet port, the second discharge end and the third discharge end, Materials with a weight less than the first set value are driven by negative pressure to move along the negative pressure channel and discharged from the second discharge end, and materials with a weight greater than the first set value are discharged from the third discharge port. end discharge;

The flotation device includes a third inlet port, and the third discharge port is arranged correspondingly to the third inlet port.

Optionally, the negative pressure sorting device includes a sorting chamber, the sorting chamber is a part of the negative pressure channel, and the second inlet port and the third discharge port are arranged in the sorting chamber and the second inlet port is arranged on the downstream side of the third discharge port along the flow direction of the airflow in the sorting chamber.

Optionally, the third discharge port is located below the second inlet port, and the airflow flows upward in the sorting chamber, so that the materials whose dynamic weight is less than the first set value go upward in the sorting chamber. Moving, materials whose weight is greater than the first set value move downward in the sorting chamber by their own weight, and are discharged from the third discharge port.

Optionally, the negative pressure separation device further includes a settling chamber, the settling chamber communicates with the negative pressure channel, the settling chamber is located on the downstream side of the sorting chamber along the air flow, and the settling chamber The flow cross-sectional area of the chamber is larger than the flow cross-sectional area of the sorting chamber.

Optionally, a wind deflector is rotatably provided at the bottom of the settling chamber, and the wind deflector is connected with a first driving member, and the first driving member is used to drive the wind deflector to rotate, so as to The settling chamber is divided into an upper space and a lower space.

Optionally, the negative pressure separation device further includes a fan, the fan is arranged on the settling chamber, and the fan is used to drive the air flow to the negative pressure through the negative pressure channel and the settling chamber. outside the sorting device to form a negative pressure in said and said settling chamber.

Optionally, the impurity removal equipment also includes a feeding device, the feeding device includes a feed port and a discharge port, the discharge port is set opposite to the first inlet port, and the feed device is used to feed the The material in the feed port is discharged into the first inlet port through the discharge port.

Optionally, the impurity removal equipment further includes a transportation device, the transportation device is arranged between the screening device and the negative pressure separation device, and the transportation device is respectively connected to the first discharge end and the The second inlet port is arranged oppositely, and is used for transporting the material discharged from the first discharge port into the second inlet port.

Optionally, the screening device includes a second driving part, a first transmission part, a second transmission part, a mesh belt and a vibrating part, and the second driving part includes an output end, and the output end is connected to the first transmission part respectively. A transmission part is connected with the second transmission part, so as to drive the mesh belt to move through the first transmission part, and drive the vibration part to move synchronously through the second transmission part, so that the vibration part Drive the mesh belt to vibrate.

Optionally, the flotation device includes a flotation tank, a first lifting part and a second lifting part, the flotation liquid is arranged in the flotation tank, and the first lifting part includes a first immersion section and a first lifting part. A discharge section, the first immersion section extends into the flotation liquid, a blanking channel is arranged between the first immersion section and the inner wall of the flotation tank, and the first discharge section is located in the flotation tank. Out of the liquid selection and protruding out of the flotation tank, the second lifting part is arranged below the first lifting part, the second lifting part includes a second immersion section and a second discharge section, the The second immersion section is arranged below the falling material channel, so that the material whose density is greater than that of the flotation liquid can pass through the material dropping channel and fall onto the second immersion section, and the second discharge A segment is located outside the flotation liquid and protrudes outside the flotation cell.

Beneficial effect

The impurity removal equipment provided in the embodiment of the utility model can remove impurities according to the particle size, weight and density characteristics of the materials to be removed by sequentially setting a screening device, a negative pressure separation device and a flotation device , effectively improving the quality of impurity removal, avoiding excessive impurities entering subsequent processing steps, reducing the impact on subsequent processing, and improving the quality of subsequent processing.

Description of drawings

Fig. 1 is the structural representation of the impurity remover of the embodiment of the present application;

Fig. 2 is the top view of the impurity remover of the embodiment of the present application;

Fig. 3 is the structural schematic diagram under the main angle of view of the negative pressure separator of the embodiment of the present application;

Fig. 4 is the left view of the negative pressure separator of the embodiment of the present application;

Fig. 5 is the top view of the negative pressure separator of the embodiment of the present application;

Fig. 6 is the structural representation of the screening device of the 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 signs are indicated as:

1. Screening device; 11. First inlet port; 12. First discharge port; 13. Second driving member; 14. First transmission part; 15. Second transmission part; 16. Vibration part;

2. Negative pressure separation device; 21. Second inlet port; 22. Second discharge port; 23. Third discharge port; 24. Sorting chamber; 25. Settling chamber; 26. Windshield; 27. Fan; 28. Regulating plate;

3. Flotation device; 31. The third inlet port; 32. The first lifting part; 33. The second lifting part; 34. The flotation box;

4. Feeding device;

5. Transport device.

Detailed ways

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it cannot be understood as a limitation of the present utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

Referring to Fig. 1 to Fig. 7, according to an embodiment of the present application, a kind of impurity removal equipment includes a screening device 1, a negative pressure separation device 2 and a flotation device 3, the screening device 1, the negative pressure separation device 2 Connect with the flotation device 3 successively;

The screening device 1 includes a first inlet port 11 and a first discharge port 12. The negative pressure separation device 2 includes a second inlet port 21. The material to be selected can enter the screening device 1 through the first inlet port 11 and pass through the first The discharge end 12 and the second inlet port 21 enter the negative pressure separation device 2;

The negative pressure separation device 2 also includes a negative pressure channel, a second discharge port 22 and a third discharge port 23, and the negative pressure channel communicates with the second inlet port 21, the second discharge port 22 and the third discharge port 23 to pass through The negative pressure drives the material whose weight is less than the first set value to move along the negative pressure channel and is discharged from the second discharge end 22, and the material whose weight is greater than the first set value is discharged from the third discharge end 23;

The flotation device 3 includes a third inlet port 31 , and the third discharge port 23 is arranged corresponding to the third inlet port 31 .

By sequentially setting the screening device 1, the negative pressure separation device 2 and the flotation device 3, the materials to be removed can be removed according to the characteristics of particle size, weight and density, which effectively improves the quality of impurities and avoids excessive impurities. The material enters the subsequent processing steps, reducing the impact on subsequent processing and improving the quality of subsequent processing.

Among them, the material to be removed enters the screening device 1 from the first inlet port 11 of the screening device 1, and is screened by the screening device 1 according to the difference between the particle size of the impurities and the particle size of the product, and the product is discharged from the first discharge port. 12 is discharged and discharged into the negative pressure separation device 2.

Wherein, the screening device 1 further includes a first trash discharge end, through which the screened out trash is discharged to the outside of the trash removal equipment.

Specifically, the target crop product of this embodiment takes walnuts as an example, and the screening device 1 can effectively separate sundries such as branches and leaves from walnuts.

Wherein, the negative pressure sorting device 2 is provided with a negative pressure channel, and the airflow flows in the negative pressure channel to generate a negative pressure, and remove impurities according to the weight of the material and sundries through the generated negative pressure.

Wherein, 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, by setting the fan 27 to extract air from the negative pressure channel to generate negative pressure, the rotation speed of the fan 27 can be adjusted to adjust the size of the first set value.

Specifically, this embodiment takes walnuts as an example, the weight of walnuts is greater than the first set value, and the weight of dust and branches and leaves mixed in the walnuts is less than the first set value. By setting the negative pressure separation device 2, the dust mixed in the walnuts and the branches and leaves not screened by the screening device 1 are sucked to the second discharge end 22 along the negative pressure channel, and then discharged to the impurity removal through the second discharge end 22. outside the device. The walnut's own weight is greater than the first set value, and the walnut will not be driven by the negative pressure to move to the second discharge end 22, but will fall to the third discharge end 23, and then pass through the third discharge end 23, thereby realizing the separation between the walnut and dust. Separation of debris such as branches and leaves.

Wherein, by setting the flotation device 3, the impurity removal can be realized based on the density difference between the material and the impurity, and the quality of the impurity removal can be further improved.

Specifically, a flotation liquid is provided in the flotation device 3, the density of the flotation liquid is between useful materials and sundries, and the separation of materials and sundries is realized through the buoyancy of the flotation liquid.

Specifically, this embodiment takes walnuts as an example, the flotation liquid can be water, and the walnuts are in a floating state in the water, and the sundries such as stones that are mixed in the walnuts and have not been separated by the screening device 1 and the negative pressure separation device 2, are therefore The density is greater than water and sinks into the water, thereby realizing the separation of walnuts and stones.

Negative pressure separation device 2 comprises sorting chamber 24, and sorting chamber 24 is a part of negative pressure channel, and second inlet port 21 and the 3rd discharge end 23 are arranged on the sorting chamber 24, and second inlet port 21 is arranged on The third discharge end 23 is on the downstream side in the flow direction of the airflow in the sorting chamber 24 .

By setting the sorting chamber 24, opening positions are provided for the second inlet port 21 and the third discharge port 23, and paths are provided for the movement of impurities and useful materials.

Wherein, in this embodiment, the sorting chamber 24 is used to separate sundries whose weight is less than the first set value from useful materials whose weight is greater 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.

Wherein, the sorting chamber 24 is extended up and down.

The third discharge port 23 is located below the second inlet port 21, and the airflow flows upwards in the sorting chamber 24, so that the material whose dynamic weight is less than the first set value moves upwards in the sorting chamber 24, and the material whose weight is greater than the first set value moves upwards in the sorting chamber 24. The material with fixed value moves downward in the sorting chamber 24 by its own weight, and is discharged from the third discharge port 23 .

By placing the third discharge end 23 below the second inlet end 21 and making the airflow flow upward in the sorting chamber 24, impurities can be removed through the airflow and the weight difference between useful materials and impurities.

Wherein, the third discharge port 23 is located below the second inlet port 21, after the material with a weight greater than the first set value enters the sorting chamber 24 from the second inlet port 21, the material will be distorted due to its own weight greater than the force exerted by the airflow on the material. The material is discharged from the third discharge port 23 below.

Wherein, the second inlet port 21 is opened on the side wall of the sorting chamber 24 , and the third discharge port 23 is opened on the bottom surface of the sorting chamber 24 .

Wherein, the third discharge port 23 is opposite to the third inlet port 31 .

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

Negative pressure separation device 2 comprises and also comprises settling chamber 25, and settling chamber 25 is connected with negative pressure channel, and settling chamber 25 is positioned at the downstream side that sorting chamber 24 flows along the air flow, and the cross-sectional area of settling chamber 25 is larger than sorting chamber. 24 cross-sectional area.

Settling chamber 25 is arranged at the downstream of sorting chamber 24 flowing along the airflow, and the cross-sectional area of cross-flow of sedimentation chamber 25 is greater than the cross-sectional area of cross-flow of sorting chamber 24, can realize the weight that will be separated in the sorting chamber 24 Impurities smaller than the first set value are settled in the settling chamber 25 and discharged.

Wherein, the space of the settling chamber 25 is larger than the space of the sorting chamber 24, and the space change when the airflow and impurities enter the settling chamber 25 from the sorting chamber 24 is an instantaneous change. After the debris enters the settling chamber 25 from the sorting chamber 24, the space increases suddenly, so the air velocity in the settling chamber 25 decreases, so that the debris can settle down and fall.

Wherein, the settling chamber 25 also extends approximately vertically.

Wherein, the top of the settling chamber 25 communicates 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 airflow in the sorting chamber 24 flows from the sorting chamber 24 into the settling chamber 25 through the part connected at the top.

Wherein, settling chamber 25 is provided with dividing plate, and dividing plate is vertically arranged, and the top of dividing plate is connected with the top inner wall of settling chamber 25, and dividing plate extends downwards, and extends to settling chamber 25 along the middle part of vertical direction. above, so that the air flow is U-shaped in the settling chamber 25. That is, the air flow flows from the top to the bottom of the settling chamber 25, and flows upward after passing through the bottom end of the partition.

Wherein, among the two parts of the settling chamber 25 divided by the partition, the width of the part near the side of the sorting chamber 24 is greater than the width of the sorting chamber 24, and smaller than the width of the part away from the side of the sorting chamber 24.

The inner bottom of the settling chamber 25 is rotatably provided with a windshield 26, the windshield 26 is connected with the first driving member, and the first driving member is used to drive the windshield 26 to rotate, so that the settling chamber 25 is divided into upper parts. space and lower space.

By arranging the windshield 26, the settling chamber 25 can be divided into an upper space and a lower space, and the airflow in the upper space is blocked from entering the lower space. In the lower space, while preventing the airflow from entering the lower space, debris can also be temporarily stored in the lower space.

Wherein, as an embodiment, a storage box is provided in the lower space, and the storage box is slidably arranged on the housing of the negative pressure separation device 2. After the storage box is full of debris, the storage box can be pulled out to clean up the debris.

As another embodiment, the lower space is provided with a miscellaneous outlet, and the sundries falling into the lower space can be discharged to the outside of the negative pressure separation device 2 through the miscellaneous outlet.

Wherein, the windshield 26 is connected with the motor, and the windshield 26 is driven to rotate by the motor.

Wherein, the windshield 26 includes a board body and a middle rotating shaft, and the middle rotating shaft is arranged along a symmetrical axis of the board body, and then the motor drives the middle rotating shaft to rotate, and then drives the board body to rotate around the symmetrical axis.

Negative pressure separation device 2 also comprises fan 27, and fan 27 is arranged on the settling chamber 25, and fan 27 is used to drive airflow to flow to the outside of negative pressure separation device 2 through negative pressure channel and settling chamber 25, with settling chamber 25 negative pressure inside.

By arranging the fan 27, a negative pressure can be generated in the negative pressure separation device 2, thereby realizing negative pressure separation.

Wherein, an adjusting plate 28 is arranged in the negative pressure channel at the air inlet end of the fan 27, and the adjusting plate 28 is rotatably arranged on the inner wall of the negative pressure channel. By turning the adjustment plate 28, the flow area of the negative pressure channel can be adjusted, and then the exhaust air volume of the fan 27 can be adjusted to realize the adjustment of the first set value. When the useful material is heavy, the exhaust air volume of the blower fan 27 can be appropriately adjusted to enhance the impurity removal effect. When the useful material is lighter, the exhaust air volume of the blower fan 27 can be adjusted appropriately, so as to prevent the useful material from being removed by mistake.

Wherein, the blower fan 27 and the adjusting plate 28 are arranged on the top of the negative pressure separation device 2 to realize upward drafting in the settling chamber 25 .

The impurity removal equipment also includes a feeder 4, the feeder 4 includes a feed port and a discharge port, the discharge port is opposite to the first inlet port 11, and the feed device 4 is used to discharge the material entering the feed port through the discharge port. into the first inlet port 11.

By setting the feeding device 4, it is possible to stably feed the material to the screening device 1, and ensure the stable progress of impurity removal.

Wherein, the feeding device 4 includes a scraper elevator, and the rotation of the scraper elevator drives the materials mixed with sundries to move obliquely upwards and put them into the screening device 1 .

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

The impurity removal equipment also includes a transportation device 5, the transportation device 5 is arranged between the screening device 1 and the negative pressure separation device 2, and the transportation device 5 is respectively arranged opposite to the first discharge end 12 and the second inlet port 21, for the first The material discharged from one discharge port 12 is conveyed into the second inlet port 21 .

By setting the transportation device 5, the stable transportation of materials between the screening device 1 and the negative pressure separation device 2 can be ensured.

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

Specifically, the first discharge end 12 is located obliquely above the inlet end of the mesh belt conveyor, and the second inlet port 21 is located obliquely below the inlet end of the mesh belt conveyor, so that the materials on the mesh belt conveyor are thrown into the second inlet end Within 21.

The screening device 1 comprises a second driving part 13, a first transmission part 14, a second transmission part 15, a mesh belt and a vibrating part 16, and the second driving part 13 comprises an output end, and the output end is respectively connected to the first transmission part 14 and the second transmission part 14. The two transmission parts 15 are connected so that the first transmission part 14 drives the mesh belt to move, and the second transmission part 15 synchronously drives the vibrating part 16 to move, so that the vibrating part 16 drives the mesh belt to vibrate.

By arranging the second driving member 13, and connecting an output end of the driving part with the first transmission part 14 and the second transmission part 15 respectively, and then synchronously driving the screening part and the vibrating part 16 to run, the number of driving parts can be reduced, Only one driving part is needed to drive the screening part and the vibrating part 16 to run, thereby reducing the manufacturing cost of the vibrating separator. By arranging the mesh belt and the vibrating part 16, the mesh belt can be driven to vibrate while screening, and the screening effect can be enhanced.

Wherein, the output end is the end portion where the driving part outputs power to the outside.

Among them, the material is introduced to the top of the mesh belt, the material whose size is smaller than the mesh belt mesh falls from the mesh hole, and the material whose size is larger than the mesh belt mesh stays on the top of the mesh belt and moves with the mesh belt.

Wherein, the vibrating part 16 can be arranged under the mesh belt, and the vibrating part 16 is used to drive the mesh belt to vibrate, and then drive the material on the top of the mesh belt to vibrate, which can realize breaking up the fruit and improve the screening effect.

Wherein, the second drive member 13 includes a motor and a driving roller, the first transmission part 14 and the second transmission part 15 can be transmission belts, and a double row of pulleys is connected on the motor shaft of the motor or the rotating shaft of the driving roller, wherein the first row of belts The pulley is connected with the first transmission part 14 , and the second row of pulleys is connected with the second transmission part 15 .

Wherein, the vibrating part 16 includes an eccentric roller, and the motor drives the eccentric roller to rotate through the second transmission part 15. The eccentric rotation can stably drive the screening part to vibrate, and has a simple structure and high reliability.

The flotation device 3 comprises a flotation tank 34, a first lifting part 32 and a second lifting part 33, the flotation tank 34 li is provided with a flotation liquid, the first lifting part 32 comprises a first immersion section and a first discharge section, the second An immersion section stretches into the flotation liquid, a blanking passage is arranged between the first immersion section and the inner wall of the flotation box 34, the first discharge section is positioned outside the flotation liquid and stretches out to the outside of the flotation box 34, the second The lifting part 33 is arranged below the first lifting part 32, and the second lifting part 33 includes a second immersion section and a second discharge section, and the second immersion section is arranged below the blanking channel, so that the density is greater than that of the flotation liquid The material can fall on the second immersion section through the blanking channel, and the second discharge section is located outside the flotation liquid and extends out of the flotation tank 34.

By setting the flotation liquid in the flotation tank 34, the separation of materials with a density smaller than the density of the flotation liquid and materials with a density greater than the density of the flotation liquid can be achieved based on the density of the flotation liquid. At the surface of the liquid selection liquid, the material whose material density is greater than that of the flotation liquid sinks into the flotation liquid, and the material with a density lower than that of the flotation liquid can be collected by setting the first lifting part 32 and discharged to the outside of the flotation tank 34 . By setting the second lifting part 33 and making the second lifting part 33 located below the first lifting part 32, materials with a density greater than that of the flotation liquid can be collected. By arranging the channel between the blanking chambers, a path for materials with a density greater than the density of the flotation liquid to fall to the second lifting part 33 is provided, so that the second lifting part 33 can discharge the materials with a density greater than the density of the flotation liquid to the outside of the flotation tank 34 , and then realize the separation of heavier materials from lighter materials through flotation liquid, improve the air quality of the working environment, and avoid the health of operators affected by air quality.

Wherein, the flotation liquid can be water.

Wherein, the flotation tank 34 includes a first side and a second side oppositely arranged, and a third side connected to the first side and the second side respectively, the first immersion section is arranged near the first side, and the first discharge section is directed toward the second side. Both sides extend and protrude out of the flotation tank 34 . The second immersion section is arranged close to the first side, and the second discharge section extends toward the second side and protrudes from the third side to the outside of the flotation tank 34 to form a distance from the second discharge section for easy collection.

Wherein, the mixed material to be separated is put into the flotation tank 34 from the first side.

Wherein, the flotation box 34 can be a rectangular hollow structure, and the top of the flotation box 34 is open, which is convenient for material pouring and installation of the first lifting part 32 and the second lifting part 33 .

Wherein, the length of the part of the first lifting part 32 and the second lifting part 33 protruding into the flotation liquid is long enough, which is larger than the diameter of the material to be lifted, so that the material can be lifted smoothly.

Among them, the stone remover is used to remove stones mixed in materials, such as stones mixed in walnuts.

Wherein, the first lifting part 32 and the second lifting part 33 can be a conveyor belt with baffles, and the baffles are vertically arranged on the loading surface of the conveyor belt. By setting the motor to drive the conveyor belt to rotate, the useful materials and sundries can be lifted.

The impurity removal equipment provided in the embodiments of the present utility model, by sequentially setting the screening device 1, the negative pressure separation device 2 and the flotation device 3, can separate the materials to be removed according to the characteristics of particle size, weight and density. The removal of impurities effectively improves the quality of the removal of impurities, prevents excessive impurities from entering subsequent processing steps, reduces the impact on subsequent processing, and improves the quality of subsequent processing.

Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned advantageous modes can be freely combined and superimposed.

The above are only preferred embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the protection scope of the application. Inside. The above are only the preferred embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the technical principle of the application. These improvements and modifications should also be It is regarded as the scope of protection of this 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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