Raw material crushing and screening device for compound fertilizer production

Abstract

The utility model discloses a raw material crushing and screening device for compound fertilizer production. The raw material crushing and screening device comprises a device main body, a bottom support, a maintenance door, a feeding hole, a crushing device and a screening device, through the arrangement of the crushing device and the rolling matching of the rotating handle, the rotating rod and the pressing rod, large-particle raw materials are effectively crushed into small particles, the crushing efficiency is improved, the holes in the transverse plate help the raw materials to be crushed step by step, the crushing uniformity and efficiency are ensured, the sieve plate is matched with the design of the circular groove and the rotating shaft, and the crushing efficiency is improved. Fine powder and large particles can be effectively screened, it is ensured that the granularity of products is uniform, the cover plate and the fixing piece ensure the sealing performance of the discharging port, materials are prevented from leaking in the discharging process, the cleanliness and safety of the production environment are improved, the safety and stability of equipment are enhanced by optimizing the design of the feeding port and improving the smashing and screening mechanism, and the production efficiency is improved. The production efficiency and safety of the compound fertilizer can be improved, the manual intervention requirement is reduced, and the reliability of the production process and the environmental cleanliness are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compound fertilizer production, in particular to a raw material crushing and screening device for compound fertilizer production. Background Art

[0002] Compound fertilizer has the advantages of high nutrient content, few by-components and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization and promoting high and stable yields of crops. The production process of compound fertilizer mainly includes crushing, mixing, granulation, drying, screening, metering and packaging. Therefore, the most important step is to crush the raw materials. The raw materials of compound fertilizer are usually in block form.

[0003] In order to prevent dust from spreading, the existing crushing devices used in compound fertilizer production usually have a relatively narrow feed port, which makes it very easy for blocky raw materials to enter and cause blockage of the feed port. When the crushing is not up to standard, the internal filter screen is prone to blockage. When manually unblocking it, it is easy for hands to be caught in the crushing box and cause personal injury. The practicality and safety of the crushing device are low. Utility Model Content

[0004] The purpose of the utility model is to provide a raw material crushing and screening device for compound fertilizer production, so as to solve the problems of the existing compound fertilizer production crushing device proposed in the above background technology, that is, in order to prevent dust diffusion, the feed port is usually set relatively narrow, resulting in the entry of block raw materials and the clogging of the feed port. When the crushing is not up to standard, the internal filter screen is easy to be clogged, and when it is manually unblocked, it is easy to cause the hands to be caught in the crushing box and cause personal injury, and the practicality and safety are low.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material crushing and screening device for compound fertilizer production, comprising a device body, a bottom support, a maintenance door, a feed port, a crushing device and a screening device, wherein the bottom support is installed at the bottom of the device body, a maintenance door is provided on the surface of the device body, a feed port is installed on the top of the device body, a crushing device is connected to the upper part of the interior of the device body, and a screening device is provided below the crushing device.

[0006] Preferably, the width of the bottom support is greater than the dimensions of the four corners of the bottom of the device body, and the feed opening is a circular opening with an inclined surface.

[0007] Preferably, the crushing device includes a horizontal plate, a gear track, a turning handle, a turning rod and a pressure rod. The horizontal plate is connected to the upper inner part of the device body, a gear track is opened above one side of the horizontal plate, the outer side of the gear track is connected to the turning handle, the inner end of the turning handle is connected to the turning rod, and the inner side of the turning rod is connected to the pressure rod.

[0008] Preferably, the horizontal plate is provided with holes of uniform size, and the turning handle forms a crushing structure through the turning rod and the pressing rod.

[0009] Preferably, the screening device includes an inclined plate, a circular groove, a sieve plate, a rotating shaft, a discharge port, a cover plate and a fixed plate. The bottom of the crushing device is provided with an inclined plate, a circular groove is opened in the center of the bottom side of the inclined plate, a sieve plate is provided below the circular groove, the left side of the sieve plate is connected to the rotating shaft, the right side of the sieve plate is provided with a discharge port, a cover plate is installed on the outside of the discharge port, and a fixed plate is installed above the cover plate.

[0010] Preferably, the inclined plates are provided in four different directions, the sieve plates are discharged through a rotating shaft, and the cover plate is fixed to the device body through a fixing plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] Through the configuration of the crushing device, the rolling cooperation of the turning handle, the rotating rod and the pressure rod can effectively crush the large-particle raw materials into smaller particles, thereby improving the crushing efficiency. The holes on the cross plate help the raw materials to be gradually crushed, ensuring the uniformity and efficiency of the crushing. The multi-directional design enables the crushed raw materials to flow better to the screen plate, thereby improving the screening efficiency. The screen plate is equipped with the circular groove and the rotating shaft design to effectively screen fine powder and larger particles to ensure uniform product particle size. The cover plate and the fixing plate ensure the sealing of the discharge port, prevent the material from leaking during the discharge process, and improve the cleanliness and safety of the production environment. By optimizing the feed port design, improving the crushing and screening mechanism, and enhancing the safety and stability of the equipment, the efficiency and safety of compound fertilizer production can be improved, the need for manual intervention can be reduced, and the reliability of the production process and the cleanliness of the environment can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall right side structure of the utility model.

[0014] Figure 2 It is an overall left side schematic diagram of the utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the device of the present utility model.

[0016] In the figure: 1. Device body; 2. Bottom support; 3. Maintenance door; 4. Feed port; 5. Crushing device; 501. Horizontal plate; 502. Tooth track; 503. Turning handle; 504. Turning rod; 505. Pressing rod; 6. Screening device; 601. Inclined plate; 602. Circular groove; 603. Screen plate; 604. Rotating shaft; 605. Discharge port; 606. Cover plate; 607. Fixing plate. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-3 The utility model provides an embodiment: a raw material crushing and screening device for compound fertilizer production, including a device body 1, a bottom support 2, a maintenance door 3, a feed port 4, a crushing device 5 and a screening device 6. The bottom support 2 is installed at the bottom of the device body 1, a maintenance door 3 is opened on the surface of the device body 1, and the feed port 4 is installed on the top of the device body 1. The crushing device 5 is connected to the upper part of the interior of the device body 1, and the screening device 6 is provided below the crushing device 5.

[0019] The width of the bottom support 2 is greater than the dimensions of the four corners of the bottom of the device body 1 to increase stability. The feed port 4 is a circular port with an inclined surface to facilitate smooth feeding.

[0020] The crushing device 5 includes a horizontal plate 501, a gear path 502, a turning handle 503, a turning rod 504 and a pressure rod 505. The horizontal plate 501 is connected to the upper part of the inner part of the device body 1, and a gear path 502 is opened on the upper side of the horizontal plate 501. The outer side of the gear path 502 is connected to the turning handle 503, the inner end of the turning handle 503 is connected to the turning rod 504, and the inner side of the turning rod 504 is connected to the pressure rod 505, which crushes large particles of raw materials and cooperates with the leakage hole by rolling.

[0021] The horizontal plate 501 is provided with holes of uniform size, and the turning handle 503 forms a crushing structure through the turning rod 504 and the pressing rod 505. Through the rolling cooperation of the turning handle 503, the turning rod 504 and the pressing rod 505, large particles of raw materials can be effectively crushed into required small particles, thereby improving the crushing efficiency.

[0022] The screening device 6 includes an inclined plate 601, a circular groove 602, a sieve plate 603, a rotating shaft 604, a discharge port 605, a cover plate 606 and a fixed plate 607. The bottom of the crushing device 5 is provided with an inclined plate 601, a circular groove 602 is opened in the center of the bottom side of the inclined plate 601, a sieve plate 603 is provided below the circular groove 602, the left side of the sieve plate 603 is connected to the rotating shaft 604, and the right side of the sieve plate 603 is provided with a discharge port 605, a cover plate 606 is installed on the outside of the discharge port 605, and a fixed plate 607 is installed above the cover plate 606, which ensures that the crushed raw materials can be evenly distributed and screened, avoiding the problem of uneven particle size.

[0023] The inclined plate 601 is provided with four different directions. The multi-directional setting of the inclined plate 601 enables the raw materials to flow better to the sieve plate 603. The sieve plate 603 discharges the material through the rotating shaft 604. The design of the rotating shaft 604 ensures that the rotation of the sieve plate 603 can effectively discharge qualified fine materials. The cover plate 606 is fixed to the device body 1 through the fixing plate 607. The cover plate 606 and the fixing plate 607 ensure the sealing of the discharge port 605, prevent the raw materials from leaking during the discharge process, and improve the cleanliness and safety of the production environment.

[0024] Working Principle: Raw material is first fed into the device body 1 through the feed port 4. The inclined surface of the feed port 4 facilitates smooth introduction of the raw material. The raw material then enters the crushing device 5. The handle 503 drives the pressure rod 505 via the rotating rod 504, crushing the raw material. The crushing process gradually breaks the raw material through the holes in the cross plate 501. The crushed raw material is then sent to the screening device 6. The raw material first slides onto the inclined plate 601. The inclined plate 601 guides the crushed raw material through its inclined surface into the circular groove 602. The raw material falling from the circular groove 602 is screened by the sieve plate 603. The design of the sieve plate 603 allows fine powder to pass through the screen, while larger particles are retained on the sieve plate 603. The screened fine material flows through the right side of the sieve plate 603 into the discharge port 605, where it is discharged from the device. The cover plate 606 and the fixing plate 607 ensure that the discharge port 605 is sealed to prevent material leakage. If maintenance or cleaning is required, it can be accessed through the maintenance door 3 on the device body 1.

[0025] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and characteristics of the scheme are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

Claims

1. A raw material crushing and screening device for compound fertilizer production, comprising a device body (1), a bottom support (2), a maintenance door (3), a feed inlet (4), a crushing device (5) and a screening device (6), characterized in that: The bottom support (2) is installed at the bottom of the device body (1); a maintenance door (3) is provided on the surface of the device body (1); a feed port (4) is installed on the top of the device body (1); a crushing device (5) is connected to the upper part of the interior of the device body (1); and a screening device (6) is provided below the crushing device (5).

2. The raw material crushing and screening device for compound fertilizer production according to claim 1, characterized in that: The width of the bottom support (2) is greater than the dimensions of the four corners of the bottom of the device body (1), and the feed opening (4) is a circular opening with an inclined surface.

3. The raw material crushing and screening device for compound fertilizer production according to claim 1, characterized in that: The crushing device (5) comprises a transverse plate (501), a tooth path (502), a turning handle (503), a turning rod (504) and a pressure rod (505). The upper part of the inner portion of the device body (1) is connected to the transverse plate (501). A tooth path (502) is provided on one side of the transverse plate (501). The outer side of the tooth path (502) is connected to the turning handle (503). The inner end of the turning handle (503) is connected to the turning rod (504). The inner side of the turning rod (504) is connected to the pressure rod (505).

4. The raw material crushing and screening device for compound fertilizer production according to claim 3, characterized in that: The horizontal plate (501) is provided with holes of uniform size, and the turning handle (503) forms a crushing structure through the turning rod (504) and the pressing rod (505).

5. The raw material crushing and screening device for compound fertilizer production according to claim 1, characterized in that: The screening device (6) comprises an inclined plate (601), a circular groove (602), a sieve plate (603), a rotating shaft (604), a discharge port (605), a cover plate (606) and a fixing plate (607). The bottom of the crushing device (5) is provided with an inclined plate (601), a circular groove (602) is provided at the center of the bottom side of the inclined plate (601), a sieve plate (603) is provided below the circular groove (602), a rotating shaft (604) is connected to the left side of the sieve plate (603), a discharge port (605) is provided on the right side of the sieve plate (603), a cover plate (606) is installed outside the discharge port (605), and a fixing plate (607) is installed above the cover plate (606).

6. The raw material crushing and screening device for compound fertilizer production according to claim 5, characterized in that: The inclined plate (601) is provided in four different directions, the screen plate (603) discharges materials via a rotating shaft (604), and the cover plate (606) is fixed to the device body (1) via a fixing plate (607).

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