Mixing and screening device for mixed fertilizer production

Abstract

The utility model discloses a mixing and screening device for mixed fertilizer production, relates to the technical field of mixed fertilizer production, and aims to solve the problems of slow working process, easiness in blockage, poor use effect and influence on screening efficiency due to the adoption of a vibrating screen in the conventional screening device for mixed fertilizer production in the prior art. The screening mechanism comprises a sealing shell, a first screening funnel, a second screening funnel and a third screening funnel, the first screening funnel, the second screening funnel and the third screening funnel are arranged in a split mode in a shell sleeving mode, and a rotating shaft is connected between the screening mechanism and the power mechanism. The power mechanism drives the rotating shaft to rotate so as to drive the screening mechanism to rotate, the aperture of the first screening funnel, the aperture of the second screening funnel and the aperture of the third screening funnel are sequentially distributed from large to small, a first sealing door is arranged below the sealing shell, and a second sealing door is arranged below the first screening funnel. And a third sealing door is arranged below the second screening funnel.

Description

Technical Field

[0001] The utility model relates to the technical field of mixed fertilizer production, in particular to a mixing and screening device for mixed fertilizer production. Background Technique

[0002] Mixed fertilizer generally refers to compound fertilizer. Compound fertilizer refers to chemical fertilizer containing two or more nutrient elements among nitrogen, phosphorus and potassium. Compound fertilizer has the advantages of high nutrient content, few side components and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization rate and promoting high and stable yield of crops. During production, it is required that the particle sizes of all components are uniform. Therefore, before mixing, it is necessary to first screen out the part of fertilizers with larger particle sizes and select the fertilizers that meet the required particle sizes for mixing, so as to meet the production requirements.

[0003] For example, the publication number is CN217527090U, a mixing and screening device for blending fertilizer production, belonging to the technical field of blending fertilizer production. The key points of its technical solution include a box body. The inner top end of the box body is fixedly connected with a support plate. The upper end surface of the support plate is provided with a feed inlet. Both the front and rear ends of the upper end surface of the support plate are fixedly connected with a plurality of connecting columns. The right side walls of the plurality of connecting columns are all fixedly connected with leaf springs. A vibrating screen is arranged directly above the support plate. Both the front and rear ends of the vibrating screen are fixedly connected with a plurality of fixing blocks. The plurality of fixing blocks and the plurality of connecting columns are fixedly connected through leaf springs.

[0004] When the first motor of the above application works, it can drive the vibrating screen to shake left and right to screen the fertilizer. The leaf spring can not only increase the shaking degree but also play a role in supporting the vibrating screen. During the screening process, the fertilizers that meet the particle size fall into the mixing drum through a plurality of screening holes arranged on the surface of the vibrating screen, and the fertilizers that do not meet the particle size will remain on the surface of the vibrating screen. However, most of the screening devices used in its production adopt vibrating screens, the working process is slow and it is easy to be blocked, the use effect is poor, and the screening efficiency is affected. Therefore, there is an urgent need in the market to develop a mixing and screening device for mixed fertilizer production to help people solve the existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a mixing and screening device for mixed fertilizer production, so as to solve the problems in the above background technique that most of the screening devices used in current mixed fertilizer production adopt vibrating screens, the working process is slow and it is easy to be blocked, the use effect is poor, and the screening efficiency is affected.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A mixing and screening device for mixed fertilizer production, comprising a support mechanism, a power mechanism, and a screening mechanism. The screening mechanism includes a sealed housing, a first screening funnel, a second screening funnel, and a third screening funnel. The first screening funnel, the second screening funnel, and the third screening funnel are separately arranged in the form of a sleeve. A rotating shaft is connected between the screening mechanism and the power mechanism. The power mechanism drives the rotating shaft to rotate, thereby driving the screening mechanism to rotate. The apertures of the first screening funnel, the second screening funnel, and the third screening funnel are arranged in descending order.

[0007] Through the above technical solutions, the mixed fertilizer is screened by a rotatable screening mechanism. The screening mechanism includes a sealed housing, a first screening funnel, a second screening funnel, and a third screening funnel. Screening is carried out through three groups of screening funnels, and the centrifugal method is used instead of the traditional vibration screening method. Under the action of a strong centrifugal force, four groups of mixed fertilizers with different particle sizes can be quickly screened out, thereby realizing a more efficient and rapid screening operation and improving the screening efficiency of the mixed fertilizer.

[0008] In a preferred embodiment of the present utility model, it can be further configured that: a first sealing door is provided below the sealed housing, and a second sealing door is provided below the first screening funnel.

[0009] Through the above technical solutions, the first sealing door and the second sealing door do not contact each other. The second sealing door is arranged inside the first sealing door to achieve material separation and discharge.

[0010] In a preferred embodiment of the present utility model, it can be further configured that: a third sealing door is provided below the second screening funnel, and a fourth sealing door is provided below the third screening funnel.

[0011] Through the above technical solutions, the third sealing door and the fourth sealing door do not contact each other. The fourth sealing door is arranged inside the third sealing door to achieve material separation and discharge.

[0012] In a preferred embodiment of the present utility model, it can be further configured that: the support mechanism includes a base, a bracket, and a support. A limit seat for stabilizing the rotation of the screening mechanism is provided on one side of the bracket.

[0013] In a preferred embodiment of the present utility model, it can be further configured that: the power mechanism is arranged above the support. The power mechanism includes a driving device and a coupling. The rotating shaft is connected to the driving device through the coupling.

[0014] In a preferred embodiment of the present utility model, it can be further configured that: a feed hopper is provided above the third screening funnel. A connecting frame is connected between the sealed housing, the first screening funnel, the second screening funnel, and the third screening funnel. The rotating shaft is connected to the connecting frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The utility model screens the mixed fertilizer through a rotatable screening mechanism. The screening mechanism includes a sealed housing, a first screening funnel, a second screening funnel, and a third screening funnel. Screening is carried out through three groups of screening funnels, and the centrifugal method is adopted instead of the traditional vibration screening method. Under the action of a strong centrifugal force, four groups of mixed fertilizers with different particle sizes can be quickly screened out, so as to realize a more efficient and rapid screening operation and improve the screening efficiency of the mixed fertilizer. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a mixed screening device for mixed fertilizer production of the present utility model;

[0018] Figure 2 It is an enlarged schematic diagram of part A in the figure of the present utility model;

[0019] In the figure: 1. Base; 2. Bracket; 3. Support; 4. Limit seat; 5. Sealed housing; 6. First sealing door; 7. First screening funnel; 8. Second sealing door; 9. Second screening funnel; 10. Third sealing door; 11. Third screening funnel; 12. Fourth sealing door; 13. Connecting frame; 14. Rotating shaft; 15. Feed hopper; 16. Driving device; 17. Coupling. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" 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 components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0023] Please refer to Figure 1 , an embodiment provided by the present utility model: a mixing and screening device for compound fertilizer production, including a support mechanism, a power mechanism and a screening mechanism. The screening mechanism includes a sealed housing 5, a first screening funnel 7, a second screening funnel 9 and a third screening funnel 11. The first screening funnel 7, the second screening funnel 9 and the third screening funnel 11 are separately arranged in a sheathed form. A rotating shaft 14 is connected between the screening mechanism and the power mechanism. The rotating shaft 14 is driven to rotate by the power mechanism to drive the screening mechanism to rotate. The apertures of the first screening funnel 7, the second screening funnel 9 and the third screening funnel 11 are distributed in descending order, and the shapes of the first screening funnel 7, the second screening funnel 9 and the third screening funnel 11 are funnel-shaped mesh structures.

[0024] Please refer to Figure 1 , a first sealing door 6 is arranged below the sealed housing 5, and a second sealing door 8 is arranged below the first screening funnel 7. The first sealing door 6 is connected to the sealed housing 5 by a hinge and is provided with a door lock. The second sealing door 8 is connected to the first screening funnel 7 by a hinge and is provided with a door lock.

[0025] Please refer to Figure 1 , a third sealing door 10 is arranged below the second screening funnel 9, and a fourth sealing door 12 is arranged below the third screening funnel 11. The connection methods of the third sealing door 10 and the fourth sealing door 12 are the same as those described above.

[0026] Please refer to Figure 1 , the support mechanism includes a base 1, a bracket 2 and a support 3. A limit seat 4 for stabilizing the rotation of the screening mechanism is arranged on one side of the bracket 2. The bracket 2 is welded to the base 1, the support 3 is welded to the bracket 2, the bracket 2 is fixedly connected to the limit seat 4 by bolts, and the sealed housing 5 is rotatably connected to the limit seat 4 by a bearing.

[0027] Please refer to Figure 2 , the power mechanism is arranged above the support 3. The power mechanism includes a driving device 16 and a coupling 17. The rotating shaft 14 is connected to the driving device 16 through the coupling 17. Both the driving device 16 and the coupling 17 are fixedly connected to the support 3 by bolts.

[0028] Please refer to Figure 1 Above the third screening funnel 11, a feed hopper 15 is provided. A connecting frame 13 is connected between the sealed housing 5, the first screening funnel 7, the second screening funnel 9 and the third screening funnel 11. The rotating shaft 14 and the connecting frame 13 are connected by bolts.

[0029] Working principle: During use, the mixed fertilizer is poured into the interior of the third screening funnel 11 from the feed hopper 15. The driving device 16 drives the rotating shaft 14 to rotate through the coupling 17. The rotating shaft 14 drives the sealed housing 5, the first screening funnel 7, the second screening funnel 9 and the third screening funnel 11 to rotate at high speed. Thus, the mixed fertilizer inside the third screening funnel 11 will spread around under the action of centrifugal force. Thus, four groups of mixed fertilizers with different particle sizes are formed under the screening of the third screening funnel 11, the second screening funnel 9 and the first screening funnel 7. Then, the first sealing door 6, the second sealing door 8, the third sealing door 10 and the fourth sealing door 12 are opened in sequence to divert and discharge and collect the mixed fertilizers with different particle sizes, completing the screening work of the mixed fertilizer.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A mixing and screening device for compound fertilizer production, comprising a support mechanism, a power mechanism and a screening mechanism, characterized in that: The screening mechanism includes a sealed housing (5), a first screening funnel (7), a second screening funnel (9), and a third screening funnel (11). The first screening funnel (7), the second screening funnel (9), and the third screening funnel (11) are separately arranged in a nested shell form. A rotating shaft (14) is connected between the screening mechanism and the power mechanism. The rotating shaft (14) is driven to rotate by the power mechanism to drive the screening mechanism to rotate. The apertures of the first screening funnel (7), the second screening funnel (9), and the third screening funnel (11) are arranged in descending order.

2. The mixing and screening device for mixed fertilizer production according to claim 1, characterized in that: A first sealing door (6) is arranged below the sealed housing (5), and a second sealing door (8) is arranged below the first screening funnel (7).

3. A mixing and screening device for mixed fertilizer production according to claim 1, wherein: A third sealing door (10) is arranged below the second screening funnel (9), and a fourth sealing door (12) is arranged below the third screening funnel (11).

4. A mixing and screening device for compound fertilizer production according to claim 1, wherein: The support mechanism includes a base (1), a bracket (2), and a support (3). A limit seat (4) for stabilizing the rotation of the screening mechanism is arranged on one side of the bracket (2).

5. The mixing and screening device for compound fertilizer production according to claim 4, wherein: The power mechanism is arranged above the support (3). The power mechanism includes a driving device (16) and a coupling (17). The rotating shaft (14) is connected to the driving device (16) through the coupling (17).

6. The mixing and screening device for compound fertilizer production according to claim 1, wherein: A feed hopper (15) is arranged above the third screening funnel (11). A connecting frame (13) is connected between the sealed housing (5), the first screening funnel (7), the second screening funnel (9), and the third screening funnel (11). The rotating shaft (14) is connected to the connecting frame (13).

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