Impurity removal screen, impurity removal mechanism and peanut impurity removal device

Abstract

The utility model discloses an impurity removal screen mesh, an impurity removal mechanism and a peanut impurity removal device, the impurity removal screen mesh comprises a screen mesh body with air holes, a turbulent flow piece corresponding to the air holes is arranged in the area, close to the direction of an impurity discharge port, of the screen mesh body, and the turbulent flow piece inclines towards the direction of a peanut outlet and is located above the air holes. An impurity removing mechanism comprises an impurity removing cavity, a feeding port is formed in the top end of the impurity removing cavity, and a fruit outlet and an impurity discharging port are formed in the two ends of the impurity removing cavity respectively. The impurity removal screen is arranged on the bottom surface of the impurity removal chamber; an air inducing component is arranged above the impurity removing chamber; and an air supply chamber is arranged below the impurity removal chamber. An impurity removal mode of air induction and air supply is adopted, the common wind power in two directions enables the direction of airflow to be clearer and clearer, an airflow channel is unobstructed, the speed is higher, and the efficiency is higher. And the turbulent flow piece is located above the air holes, so that the surface of the screen is uneven, jolt borne by the peanuts is stronger, and screening of sundries is facilitated. And the air holes cannot be directly blocked, so that wind power is easier to scatter and flow all around.

Description

Technical Field

[0001] The utility model relates to the technical field of wind impurity removal equipment, and specifically, to an impurity removal screen, an impurity removal mechanism, and a peanut impurity removal device. Background Art

[0002] After the picked and collected peanut fruits are mixed with some impurities, such as heavier stones, soil clods, or lighter stem leaves, films and other sundries. Therefore, the impurity removal step is required before processing the peanut fruits.

[0003] The utility model patents with the publication numbers of CN2664798Y and CN2754749Y both disclose the technical solutions for removing the impurities mixed in the peanut fruits by means of induced air. However, due to the influence of the structure, the method of removing impurities by induced air has obvious drawbacks. When the air enters from the bottom, the wind speed is small due to the large ventilation area, it is difficult to fully disperse the peanut fruits, and the mixed impurities are difficult to fully contact the air. The lighter impurities are not easily completely blown up and discharged, and the impurity removal effect is not thorough.

[0004] The utility model patents with the publication numbers of CN207446732U and CN2087103U both disclose the technical solutions for removing the impurities mixed in the peanut fruits by means of blowing from the bottom. However, due to the influence of the structure, although the lighter impurities can be blown up, some impurities will always stay in the chamber and float, and will also be discharged from the through holes such as the impurity discharge port or the fruit outlet, etc., and a single convection channel cannot be formed, and the impurities are scattered, which is not conducive to on-site work.

[0005] In order to change this situation, at present, the impurity removal step is mostly repeated twice, but this increases the operation time and the efficiency is low.

[0006] In addition, through years of actual operation, it is also found that the conventional screen is only provided with numerous air holes, and the air blows upward from the bottom, and the lighter rootstocks and other impurities mixed in the peanut fruits will be blown out. However, when a large number of peanut fruits fall on the screen, some of the air holes below it will be compacted and blocked and difficult to ventilate, and the air can only pass through the air holes in other parts, which will cause some peanut fruits to have too short contact time with the air, and the impurity removal effect is poor, and some impurities will still be missed and it is difficult to completely remove and discharge them. Moreover, the air blows upward through the air holes on the screen, and a certain eddy current area will be formed in the chamber, and the lifted light impurities will stay in this area for a long time, affecting the impurity removal effect. Summary of the Utility Model

[0007] The technical task of the present utility model is to provide a impurity removal screen, an impurity removal mechanism, and a peanut impurity removal device to solve the deficiencies existing in the prior art, aiming at the problem that the prior art cannot remove impurities quickly and thoroughly. Its structure is simple and compact, and it can quickly and thoroughly remove heavy objects, light objects, and fine sand and other impurities mixed in peanut fruits in a short time, improving work efficiency.

[0008] To solve the above technical problems, on the one hand, the present utility model provides an impurity removal screen, including a screen body, and a plurality of air holes penetrating through the thickness direction of the screen body are uniformly arranged on the screen body;

[0009] A plurality of flow disturbing members corresponding to the air holes are arranged in the area of the screen body close to the impurity discharge port direction, and the flow disturbing members are inclined towards the fruit outlet direction and are located above the air holes.

[0010] Preferably, the area of the region of the screen body provided with the flow disturbing members is larger than the area of the region of the screen body not provided with the flow disturbing members.

[0011] Preferably, the air holes on the screen body provided with the flow disturbing members are staggered corresponding to each other.

[0012] On the other hand, the present utility model also provides an impurity removal mechanism, including an impurity removal chamber, an inlet is arranged at the top of the impurity removal chamber, and a fruit outlet and an impurity discharge port are respectively arranged at both ends of the impurity removal chamber;

[0013] The bottom surface of the impurity removal chamber is provided with the above-mentioned impurity removal screen;

[0014] An air guiding component is arranged above the impurity removal chamber and is softly communicated with its inner cavity;

[0015] A air supply chamber with an air supply component is arranged below the impurity removal chamber, and the air supply chamber is softly connected to the area of the screen body provided with the flow disturbing members.

[0016] Preferably, the air guiding component and the air supply chamber are vertically staggered corresponding to each other.

[0017] On yet another aspect, the present utility model also provides a peanut impurity removal device, including the above-mentioned impurity removal screen, or including the above-mentioned impurity removal mechanism.

[0018] Due to adopting the above technical solution, the advantages and positive effects of the present utility model are as follows:

[0019] First, an impurity removal method of induced draft plus forced draft is adopted. When the lighter impurities are blown up, they can be discharged by the induced draft at the same time. The combined wind forces in two directions make the direction of the air flow clearer and more definite, and the air flow channel is unobstructed, making the impurity removal effect more thorough, faster and more efficient. A certain negative pressure state is formed inside the impurity removal chamber, and the sealed environment is conducive to the discharge of impurities flowing with the air flow.

[0020] Secondly, compared with the traditional flat screen, the spoiler is located above the air holes, making the surface of the screen uneven. The peanuts are more strongly jolted, which is beneficial to screening out impurities and the impurity removal effect is more thorough. Moreover, the peanuts or impurities will not directly block the air holes, and the wind force is easier to disperse and flow.

[0021] Thirdly, the spoiler is in an inclined posture, making the direction of the forced draft be inclined and tilted towards the fruit outlet direction. The peanuts are blown by the wind force while vibrating and screening, and the rolling effect is more obvious. Coupled with the fact that the induced draft fan and the forced draft chamber are staggered up and down, and the air flow is in a single-direction convection mode, it is difficult to form a large-area eddy current phenomenon. The light impurities blown up will be easily and quickly led out, the residence time of the impurities is shorter, and the impurity removal speed is faster. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is the main structural schematic view of the wind-force impurity removal structure of the present invention;

[0024] Figure 2 is Figure 1 the internal structural schematic diagram of

[0025] Figure 3 is the top structural schematic view of the screen in the present invention;

[0026] Figure 4 is the three-dimensional structural schematic view of the screen in the present invention;

[0027] Figure 5 is the partial cross-sectional structural schematic view of the screen in the present invention;

[0028] Figure 6 is the structural schematic diagram of the peanut impurity removal device of the present invention.

[0029] In the figure:

[0030] 100. Impurity Removal Chamber 101, Material Inlet 102, Impurity Discharge Port 103, Fruit Outlet 104, Visual Window 105, Screen Body 1051, Air Holes 1052, Turbulence Generators;

[0031] 200. Air Inducing Component;

[0032] 300. Air Supply Component 301, Air Supply Impeller;

[0033] 400. Frame 401, Material Hopper 402, Driving Component 403, Driven Shaft 404, Second Link. Detailed Embodiment

[0034] In order to more clearly understand the above-mentioned objects, features, and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] The following combines the attached Figures 1-6 drawings and specific embodiments to further illustrate the present invention.

[0038] As Figures 1-6As shown, according to one aspect of the present embodiment, the utility model provides a cleaning screen, including a screen body 105, whose installation angle is also commonly inclined, that is, the height in the direction of the impurity discharge port 102 is high, and the height in the direction of the fruit outlet 103 is low. A number of air holes 1051 penetrating through its thickness direction are evenly arranged on the screen body 105, and this structure can facilitate the upward convection of the air below. There is no specific requirement for the shape of the air holes 1051, and both circular and square shapes are acceptable.

[0039] In addition, a number of flow disturbing members 1052 corresponding to the air holes 1051 are arranged in the area of the screen body 105 close to the impurity discharge port 102 direction. In practice, a flat object is used. The flow disturbing members 1052 are inclined towards the fruit outlet 103 direction and are located above the air holes 1051. Through this structure, when the air below convects upward, it will touch the flow disturbing members 1052 and change its direction, specifically forming an obliquely upward angle to blow the material, rather than blowing the material in the traditional vertical direction. The traditional method is likely to form an eddy current area in the chamber, and the lighter impurities will stay in this area for a long time and are difficult to discharge.

[0040] Reference Figures 2 to 4 Of course, the area of the screen body 105 provided with the flow disturbing members 1052 is larger than the area of the screen body 105 not provided with the flow disturbing members 1052. This structure can maximize the screening area, that is, leave enough area for wind screening and impurity removal.

[0041] Moreover, in a further case, the air holes 1051 on the screen body 105 provided with the flow disturbing members 1052 correspond to each other in an interlaced manner. In this way, a large number of interlaced air flow channels can be formed, improving the effect of the material being blown. Coupled with the fact that the flow disturbing members 1052 are higher than the height of the screen body 105, the material will bump on the screen with uneven top surface height, forming a more intense turning state, and the impurities will fall more thoroughly.

[0042] Since the flow disturbing members 1052 are located above the air holes 1051, when a large amount of material falls onto the screen body 105, it will not directly block the air holes 1051, but will be blocked by the flow disturbing members 1052, leaving enough gaps for the flow of air. The material can be quickly dispersed instead of being piled up for a long time, improving the efficiency of impurity removal.

[0043] It is also worth noting that the spoiler 1052 turns the direction of the airflow, producing a reverse blowing on the peanut fruit, that is, the airflow can blow the peanut fruit toward the fruit outlet 103, preventing it from moving in the opposite direction of the impurity outlet 102 under the effect of vibration. The reverse blowing airflow can also increase the degree of tumbling of the peanut fruit, further improving the impurity removal effect. Heavy materials (such as soil blocks and stones) cannot be blown by the airflow, and will be vibrated and screened out in the direction of the impurity outlet 102. In this process, the lightest materials (such as films, leaves, etc.) will be blown upward by the airflow, thereby forming a screening of three materials of different weights.

[0044] According to another aspect of the embodiment, the utility model also provides an impurity removal mechanism, including an impurity removal chamber 100, a visual window can be provided on its circumferential surface for observing the internal situation, a feed port 101 is provided at the top of the impurity removal chamber 100, and materials mixed with impurities enter the impurity removal chamber 100 from here, and a fruit outlet 103 and an impurity discharge port 102 are respectively provided at both ends of the impurity removal chamber 100; the bottom surface of the impurity removal chamber 100 is provided with the above-mentioned impurity removal screen to facilitate wind blowing into the impurity removal chamber 100 from bottom to top.

[0045] An air induction component 200 (using an induced draft fan) softly connected to the inner cavity of the impurity removal chamber 100 is also provided above the impurity removal chamber 100, and the effect of induced draft is used to achieve the discharge of lighter impurities. Also, an air supply chamber 300 with an air supply component 301 (which is transmission-connected to the air supply motor and uses an impeller to send air in) is provided below the impurity removal chamber 100, so that two wind impurity removal effects of induced draft + air supply can be achieved, and lighter materials can be discharged quickly and thoroughly, with faster airflow and greater wind force. Moreover, the air induction component 200 can also have a certain attraction effect on the peanut fruit, which is conducive to the peanut fruit rolling and moving toward the fruit outlet 103.

[0046] The air supply chamber 300 is softly connected to the area on the screen body 105 where the spoiler 1052 is provided. The reason for connecting to this area is that the air supply chamber 300 below can achieve a more powerful air supply effect to this area, rather than the traditional state where the external wind is naturally sucked in, so that the air supply effect is better.

[0047] The area on the screen body 105 without the spoiler 1052 is a structure that is naturally connected to the outside world, that is, the outside wind is naturally inhaled. The wind force is the smallest and the wind speed is the slowest here. The reason for adopting this structure is that when the material passes through this area, the basic screening of heavy and light objects has been achieved. However, there are still some sundries (such as fine sand, branches, and soil residues) whose weight is approximately equal to that of peanut fruits and whose volume is small. They cannot be blown up or screened out, and can only roll here together with the peanut fruits. When passing through here, affected by the greatly reduced wind force, they will be naturally screened out, and finally the technical effect of only peanut fruits being discharged and collected is achieved.

[0048] Reference Figure 2 , so that finally heavier sundries are discharged from the impurity discharge port 102, lighter sundries are led out by the air guiding component 200, sundries such as fine sand naturally fall out, and peanut fruits are discharged from the fruit outlet 103, achieving excellent screening effects.

[0049] In order to achieve a better air flow passage, the air guiding component 200 and the air supply chamber 300 are arranged in an upper and lower staggered manner. In this way, the air flow flows obliquely in the impurity removal chamber 100. When the lighter sundries are blown up, they can be directly and quickly led out and will not stagnate in eddies in some areas.

[0050] On the other hand, the present invention also provides a peanut impurity removal device, including the above-mentioned impurity removal screen or including the above-mentioned impurity removal mechanism. The impurity removal mechanism is arranged on the frame 400. The driving end of the driving component 402 (a driving motor is actually used) on the frame 400 is in transmission connection with the driven shaft 403 through a belt. At least one eccentric wheel rotatably connected to the driven shaft 403 is provided on the driven shaft 403, and the eccentric wheel is movably connected to the impurity removal chamber 100 through a first connecting rod. The impurity removal chamber 100 is movably connected to the frame 400 through a second connecting rod 404. Moving wheels are provided at the bottom of the frame, and it can perform mobile operations in the fields.

[0051] Due to the adoption of the above technical solutions, the advantages and positive effects of the present invention are as follows:

[0052] First of all, an impurity removal method of air guiding plus air supply is adopted. While the lighter sundries are blown up, they can also be led out by air guiding. The combined wind forces in two directions make the direction of the air flow clearer and more definite, and the air flow passage is unobstructed, making the impurity removal effect more thorough, faster, and more efficient. A certain negative pressure state is formed inside the impurity removal chamber, and the closed environment is conducive to the discharge of sundries along with the air flow.

[0053] Secondly, compared with the traditional flat screen, the spoiler is located above the air hole, making the surface of the screen undulating, and the peanuts are more strongly bumped, which is conducive to screening out debris and removing debris more thoroughly. Moreover, peanuts or debris will not directly block the air hole, and the wind is more likely to flow around.

[0054] Secondly, the spoiler is tilted, so that the air supply direction is oblique and tilted toward the fruit outlet. The peanuts are blown by the wind while vibrating and screening, and the rolling effect is more obvious. In addition, the induced draft fan and the air supply chamber are staggered up and down, and the airflow is a single-direction convection method, which makes it difficult to form a large-area eddy current phenomenon. The light debris blown up will be easily and quickly drawn out, the debris stays for a shorter time, and the speed of impurity removal is faster.

[0055] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A debris removal screen, comprising a screen body (105), wherein the screen body (105) is evenly provided with a plurality of air holes (1051) penetrating the screen body in a thickness direction; Its characteristics are: A plurality of spoilers (1052) corresponding to the air holes (1051) are provided on the screen body (105) in an area close to the impurity discharge port (102); the spoilers (1052) are inclined toward the fruit discharge port (103) and are located above the air holes (1051).

2. The impurity removal screen according to claim 1, characterized in that: The area of ​​the region on the screen body (105) provided with the spoiler (1052) is larger than the area of ​​the region on the screen body (105) not provided with the spoiler (1052).

3. The impurity removal screen according to claim 1 or 2, characterized in that: The air holes (1051) on the screen body (105) provided with the spoiler (1052) are staggered and correspond to each other.

4. A debris removal mechanism, comprising a debris removal chamber (100), wherein a feed inlet (101) is provided at the top of the debris removal chamber (100), and a fruit outlet (103) and an debris discharge outlet (102) are respectively provided at two ends of the debris removal chamber (100); Its characteristics are: The bottom surface of the impurity removal chamber (100) is provided with an impurity removal screen as claimed in any one of claims 1 to 3; An air induction component (200) which is in soft communication with the inner cavity of the impurity removal chamber (100) is provided above the impurity removal chamber (100); An air supply chamber (300) with an air supply component (301) is provided below the impurity removal chamber (100), and the air supply chamber (300) is softly connected to a region on the screen body (105) provided with the spoiler (1052).

5. The impurity removal mechanism according to claim 4, characterized in that: The air inducing component (200) and the air supply chamber (300) correspond to each other in an alternating manner up and down.

6. A peanut impurity removal device, characterized by: It comprises the impurity removal screen described in any one of claims 1 to 3, or comprises the impurity removal mechanism described in claim 4 or 5.

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