Soil impurity separating device
By using a combination of conveying screw and screening screen in the soil separation device, the problem of clogging by sticky soil is solved, achieving efficient screening and impurity separation, and improving screening efficiency and quality.
Patent Information
- Application Number
- CN202511763318.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-01-02
AI Technical Summary
Existing soil separation devices are poorly adapted to clayey soils with high moisture content, are prone to clogging, and have low screening efficiency.
The system employs a conveying screw and screening mesh structure within the screening cylinder. The screening mesh is arranged in a linear array with increasing density. The arc-shaped filter screen works in conjunction with barbs. Separation baffles and side plates prevent impurities from slipping off. The screw conveying method enhances soil permeability.
It effectively improves the screening efficiency and quality of soil with high moisture content, reduces the probability of filter clogging, and improves screening quality.
Smart Images
Figure CN121244526A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of agricultural machinery, and particularly relates to a soil sundry separation device. BACKGROUND
[0002] In agricultural production, landscaping and engineering construction, it is often necessary to pretreat soil to separate sundries such as stones, plastic film and root systems from the soil, so as to obtain pure planting soil or engineering soil. In the prior art, soil separation devices mostly adopt vibrating screens or drum screens.
[0003] However, these existing devices have obvious defects: they have poor adaptability to high-moisture clay soil, and the soil is prone to accumulate at the feed inlet and bond on the screen mesh, which easily causes blockage and leads to a sharp decrease in screening efficiency. SUMMARY
[0004] In view of the above, in order to overcome the defects of the prior art, the present application provides a soil sundry separation device which can better screen high-moisture soil.
[0005] The technical scheme adopted by the present application is as follows: the soil sundry separation device provided by the present application comprises a screening drum, a conveying screw and a screening mesh, the conveying screw is rotatably arranged in the screening drum, and the screening mesh is circumferentially and linearly arranged on the conveying screw.
[0006] Further, the screening drum comprises a drum body, a residue receiving bin is arranged on the side of the drum body, a feed inlet is arranged at one end of the drum body, a material receiving bin is arranged on the feed inlet, a discharge outlet is arranged on the side of the drum body away from the feed inlet, a discharge screen mesh is detachably arranged on the discharge outlet, a motor is arranged on the side of the drum body, the output end of the motor is in transmission connection with the conveying screw, handles are symmetrically arranged on the side of the discharge screen mesh, screening sections are linearly arranged on the drum body, each screening section comprises a groove, a material guide opening and a separation partition plate, the grooves are linearly arranged, the density of the grooves in different screening sections increases along the conveying direction of the conveying screw, the grooves are located at the bottom of the outer side of the drum body, the separation partition plates are linearly arranged above the grooves, the separation partition plates are arranged in a circular arc shape and are attached to the drum body, the material guide openings are arranged between the separation partition plates and the grooves, the material guide openings are located on the side of the drum body away from the residue receiving bin, and side plates are symmetrically arranged on the outer side of the screening sections.
[0007] Further, the screening net comprises an arc-shaped filter screen and barbs, the arc-shaped filter screen is arranged on the central axis of the conveying screw, the barbs are linearly arranged at one end of the arc-shaped filter screen away from the central axis of the conveying screw, the barbs are respectively arranged in the grooves and are in close contact with the grooves, the arc-shaped filter screen is arranged at the screening section, the arc-shaped filter screen is arranged in a circular arc shape, the protruding direction of the arc-shaped filter screen is the same as the rotating direction of the conveying screw, the barbs are arranged in a circular arc shape, the protruding direction of the barbs is opposite to the protruding direction of the arc-shaped filter screen, and the screening densities of the arc-shaped filter screens inside different screening sections increase along the conveying direction of the conveying screw.
[0008] Further, the conveying screw is provided with openings on the spiral blades, and the openings are respectively located at the intersection of the spiral blades of the conveying screw and the screening net.
[0009] The separation partition plate is arranged in a staggered manner with the barbs.
[0010] The beneficial effects obtained by the above structure are as follows: the soil impurity separation device provided by the scheme can separate impurities from soil when screening soil, the conveying screw conveys soil in the cylinder, the arc-shaped filter screen intercepts stones, dry branches and other impurities in the process, separates impurities from soil, and is conveyed upward along with the rotation of the conveying screw, when reaching the material guide opening, the arc-shaped filter screen is curved, so that the impurities pass through the material guide opening and slide to the arrayed barbs under the action of gravity and continue to be conveyed upward, the separation partition plate and the side plate prevent the impurities from sliding, and the impurities fall into the slag receiving bin, so that the impurities can be effectively separated from the soil, meanwhile, the linearly arrayed screening net with increasing screening density of each group can realize gradient screening of impurities of different sizes, and the screening quality is effectively improved; meanwhile, the soil is conveyed by the screw conveying mode, compared with the traditional screening machine, the soil is conveyed by the screw conveying mode, so that the pressure is applied to the filter screen through the conveying of the screw, the passability of the soil on the filter screen is enhanced, and the probability of filter screen blockage is reduced, compared with the traditional mode, the screening efficiency and the screening quality of soil with high water content can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 A structure schematic view of a soil impurity separation device provided by the application; Figure 2 A structure schematic view of a screening cylinder provided by the application; Figure 3 A structure schematic view of another perspective of the screening cylinder provided by the application; Figure 4 A perspective sectional view of the screening cylinder provided by the application; Figure 5 A structure schematic view of a conveying screw provided by the application; Figure 6 A structure schematic view of the conveying screw without a screening net provided by the application; Figure 7 The structural schematic diagram of the screening net provided by the present application is shown in the figure. Figure 8 The perspective sectional view of the soil sundry separating device provided by the present application is shown in the figure.
[0012] Wherein, 1, screening cylinder, 2, conveying screw, 3, screening net, 101, cylinder body, 102, feeding port, 103, receiving bin, 104, screening section, 105, discharging port, 106, discharging screen, 107, handle, 108, motor, 109, slag receiving bin, 110, groove, 111, guide port, 112, separating partition, 113, side plate, 201, opening, 301, arc-shaped filter screen, 302, barb.
[0013] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0015] In the description of the present application, it should be understood that the terms “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0016] As Figures 1-8 shown, the soil sundry separating device provided by the present application comprises a screening cylinder 1, a conveying screw 2 and a screening net 3. The conveying screw 2 is rotatably arranged in the screening cylinder 1, and the screening net 3 is circumferentially and linearly arranged on the conveying screw 2.
[0017] Further, the screening cylinder 1 comprises a cylinder body 101, the cylinder body 101 is provided with a slag receiving bin 109 on the side, one end of the cylinder body 101 is provided with a feeding port 102, the feeding port 102 is provided with a receiving bin 103, the side of the cylinder body 101 away from the feeding port 102 is provided with a discharging port 105, the discharging port 105 is detachably provided with a discharging screen 106, the cylinder body 101 is provided with a motor 108 on the side, the output end of the motor 108 is in transmission connection with the conveying screw 2, the discharging screen 106 is symmetrically provided with a handle 107 on the side, the cylinder body 101 is linearly arrayed with screening sections 104, the screening section 104 comprises a groove 110, a guide port 111 and a separation baffle 112, the grooves 110 are linearly arrayed, the density of the grooves 110 of different screening sections 104 increases along the conveying direction of the conveying screw 2, the groove 110 is located at the bottom of the outer side of the cylinder body 101, the separation baffles 112 are linearly arrayed above the grooves 110, the separation baffles 112 are arranged in a circular arc shape and are attached to the cylinder body 101, the guide port 111 is arranged between the separation baffle 112 and the groove 110, the guide port 111 is located on the side of the cylinder body 101 away from the slag receiving bin 109, and the outer side of the screening section 104 is symmetrically provided with a side plate 113.
[0018] Further, the screening net 3 comprises an arc-shaped filter screen 301 and a barb 302, the arc-shaped filter screen 301 is arranged on the central axis of the conveying screw 2, the barbs 302 are linearly arrayed on one end of the arc-shaped filter screen 301 away from the central axis of the conveying screw 2, the barbs 302 are respectively arranged in the grooves 110 and are attached to the grooves 110, the arc-shaped filter screen 301 is arranged at the screening section 104, the arc-shaped filter screen 301 is arranged in a circular arc shape, the protruding direction of the arc-shaped filter screen 301 is the same as the rotating direction of the conveying screw 2, the barb 302 is arranged in a circular arc shape, the protruding direction of the barb 302 is opposite to the protruding direction of the arc-shaped filter screen 301, and the screening density of the arc-shaped filter screen 301 inside different screening sections 104 increases along the conveying direction of the conveying screw 2.
[0019] Further, the spiral blade of the conveying screw 2 is provided with an opening 201, and the opening 201 is respectively located at the intersection of the spiral blade of the conveying screw 2 and the screening net 3.
[0020] Among them, the separation baffle 112 and the barb 302 are arranged in a staggered manner.
[0021] Specific use, first, the soil is poured in the receiving bin 103, the motor 108 start driving screw conveyor 2 rotation, screw conveyor 2 in the barrel 101 to the direction of discharge screen 106 of soil, the process of arc filter screen 301 will intercept the stone, branches and other impurities in the screen section 104, from the soil separation of impurities, impurities in the arc filter screen 301 under the drive of the rotation of screw conveyor 2 is transported upwards, in reaching the guide 111, the arc filter screen 301 of arc bending makes the impurities through gravity through the guide 111, and slide to the array set on the barb 302 and continue to transport upwards, side plate 113 prevents impurities from sliding from the side, the barb 302 contact separation baffle 112, separation baffle 112 and barb 302 staggered, prevent impurities from falling from the bottom, with the rotation of screw conveyor 2, impurities fall into the slag receiving bin 109, the remaining soil with the screw transport into the next moving screen section 104, screen density higher arc filter screen 301 to the soil for further screening, from the soil separation of more small impurities; After screening, the screw conveyor 2 will continue to discharge the separation of the discharge port 105, soil in through the discharge screen 106 for the last time after screening, discharge, screening filter screen can effectively prevent the soil from missing un-screened impurities, at the same time, the discharge screen 106 of detachable setting can facilitate the cleaning of the residual in the barrel 101.
[0022] It should be noted that in this document, the terms“first” and“second” and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms“comprises,”“comprising,” or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0023] The above describes the present application and its embodiments, which are not limited, and the drawings shown are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution can be designed, which shall belong to the protection scope of the present application.
Claims
1. A soil debris separation device, characterized in that: The system includes a screening cylinder (1) and a conveying screw (2). A screening mesh (3) is provided on the conveying screw (2). The screening mesh (3) is arranged in a circumferential array and linearly distributed along the axial direction of the conveying screw (2). The screening cylinder (1) includes a cylinder body (101). Screening sections (104) are arranged in a linear array on the cylinder body (101). Each screening section (104) includes grooves (110), a guide port (111), and a separation baffle (112). The grooves (110) are arranged in a linear array. The density of the grooves (110) in different screening sections (104) increases along the conveying direction of the conveying screw (2). The grooves (110) are located at the bottom outer side of the cylinder body (101). A slag receiving bin (109) is provided on the side of the cylinder body (101). The separation partition (112) is arranged in a linear array above the groove (110). The separation partition (112) is arranged in an arc shape and fits against the cylinder (101). The guide port (111) is arranged between the separation partition (112) and the groove (110). The guide port (111) is located on the side of the cylinder (101) away from the slag receiving bin (109). The screening screen (3) includes an arc-shaped filter screen (301) and barbs (302). The arc-shaped filter screen (301) is arranged on the central axis of the conveying screw (2). The barbs (302) are arranged in a linear array at one end of the arc-shaped filter screen (301) away from the central axis of the conveying screw (2). The barbs (302) are respectively arranged in the groove (110) and fit against the groove (110).
2. The soil debris separation device according to claim 1, characterized in that: The arc-shaped filter screen (301) is located at the screening section (104). The arc-shaped filter screen (301) is arranged in an arc shape. The protruding direction of the arc-shaped filter screen (301) is the same as the rotation direction of the conveying screw (2). The barb (302) is arranged in an arc shape. The protruding direction of the barb (302) is opposite to the protruding direction of the arc-shaped filter screen (301). The screening density of the arc-shaped filter screen (301) inside the screening section (104) increases along the conveying direction of the conveying screw (2). The barb (302) is staggered with the separation partition (112).
3. The soil debris separation device according to claim 2, characterized in that: The screw (2) has an opening (201) on its spiral blades, and the opening (201) is located at the intersection of the screw (2) and the screen (3).
4. The soil debris separation device according to claim 3, characterized in that: The cylinder (101) has a feed inlet (102) at one end, and a receiving bin (103) is provided on the feed inlet (102).
5. A soil debris separation device according to claim 4, characterized in that: The cylinder (101) has an outlet (105) on the side away from the feed inlet (102), and a discharge screen (106) is detachably provided on the outlet (105).
6. A soil debris separation device according to claim 5, characterized in that: A motor (108) is provided on the side of the cylinder (101), and the output end of the motor (108) is connected to the conveying screw (2) for transmission.
7. A soil debris separation device according to claim 6, characterized in that: The discharge screen (106) is symmetrically provided with handles (107) on its side.
8. A soil debris separation device according to claim 7, characterized in that: The screening section (104) is symmetrically provided with side plates (113) on the outside.