Scraper for production of blended fertilizer

Abstract

The utility model relates to the technical field of fertilizer processing equipment, and discloses a scraper for producing blended fertilizer, which comprises a casing, a driving chain is rotatably arranged in the middle of the inside of the casing, V-shaped scrapers are arranged on the driving chain at intervals, and the inward concave sides of the scrapers are arranged towards the conveying direction of the fertilizer. The width of the scraping plate is smaller than that of the inner space of the shell; cleaning bristles are arranged on the side wall of the scraping plate; a supporting frame is arranged on the driving chain, and the scraping plate is elastically connected with the supporting frame through a spring; a guide rod is arranged at the top end of the scraping plate and penetrates out of a guide hole formed in the supporting frame. According to the fertilizer conveying device, fertilizer can be conveyed in the middle, the probability that the fertilizer deviates towards the two sides of the scraper blade and the probability that the fertilizer falls from the two sides of the outlet of the shell during discharging are reduced, the fertilizer can fall to the next procedure in the middle, and it is guaranteed that the fertilizer is stably and orderly conveyed.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer processing equipment, in particular to a scraper machine for producing mixed fertilizers. Background Art

[0002] Blended fertilizer, also known as BB fertilizer or dry mixed fertilizer, is a chemical fertilizer containing any two or three of the three nutrient elements of nitrogen, phosphorus and potassium. It is made from unit fertilizer or compound fertilizer as raw materials through mechanical mixing.

[0003] When processing blended fertilizers, a scraper conveyor is usually used for conveying. Existing scraper conveyors usually have a rectangular scraper structure. However, fertilizers are different from bulky bulk materials. When the rectangular scraper pushes the fertilizer to move, the fertilizer tends to move to the sides of the scraper, causing a portion of the fertilizer to be trapped in the gap between the scraper and the shell and difficult to be pushed out. At the same time, when the fertilizer is pushed out of the shell, most of the fertilizer tends to fall from both sides of the shell outlet, and only a small amount of fertilizer falls from the middle position of the shell outlet, which is easy to deviate from the material receiving position of the next process, affecting the normal transportation of the fertilizer. Therefore, there is an urgent need for a scraper conveyor for blended fertilizer production that can push the fertilizer in the center during the fertilizer transportation process. Utility Model Content

[0004] The purpose of the utility model is to provide a scraper machine for the production of blended fertilizers, which can realize the central transportation of fertilizers, reduce the probability of fertilizers deviating to the sides of the scraper and the probability of fertilizers falling from the two sides of the shell outlet when unloading, and realize the fertilizers falling in the center to the next process, thereby ensuring the stable and orderly transportation of fertilizers.

[0005] The utility model adopts the following technical solutions:

[0006] A scraper for producing blended fertilizers, comprising a shell, a drive chain rotatably arranged at a middle position inside the shell, scrapers arranged at intervals on the drive chain, wherein the scraper is a V-shaped structure, and the inwardly concave side of the scraper is arranged toward the direction of fertilizer transportation; the width of the scraper is smaller than the width of the internal space of the shell; flexible cleaning bristles are arranged on the side walls of the scraper; a support frame is provided on the drive chain, and the scraper is elastically connected to the support frame; a guide rod is provided at the top end of the scraper, and the guide rod movably extends out from a guide hole opened in the support frame; a spring is provided between the guide rod and the support frame.

[0007] Preferably, only one side wall of each scraper is provided with cleaning bristles, and the cleaning bristles on two adjacent scrapers are provided on different sides.

[0008] Preferably, the spring is arranged on the top end face of the support frame where the guide hole is located, and the spring is sleeved on the outside of the guide rod. An adjusting nut is threaded on the guide rod, and the top end of the spring abuts against the adjusting nut.

[0009] Preferably, a fixing bolt for positioning the guide rod is threadedly provided on the support frame.

[0010] Preferably, the support frame as a whole is a V-shaped structure matching the scraper, with a cavity formed inside, and the bottom and both sides are open; a support plate is provided in the cavity inside the support frame, and the guide hole is opened on the support plate.

[0011] Preferably, the top of the support frame is provided with an adjustment groove which is in communication with the interior thereof, and a sealing plate is detachably provided on the adjustment groove.

[0012] Preferably, a smooth and flat rubber pad is provided at the bottom of the scraper.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention sets the scraper as a V-shaped structure and sets the concave side of the scraper toward the fertilizer conveying direction, so that the fertilizer can be pushed centrally during the fertilizer conveying process, reducing the amount of fertilizer moving between the scraper and the shell, while ensuring that most of the fertilizer is output from the center of the shell, providing convenience for the next process to receive and / or convey the fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an embodiment of the present application;

[0015] Figure 2 This is a schematic structural diagram of the scraper according to an embodiment of the present application;

[0016] Figure 3 A cross-sectional view of a support frame according to an embodiment of the present application;

[0017] Figure 4 for Figure 3 A magnified view of center. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the present invention with reference to the accompanying drawings and embodiments:

[0019] like Figures 1 to 4As shown, the present invention discloses a scraper 4 machine for producing blended fertilizers, comprising a housing 1. The housing 1 is a rectangular parallelepiped structure with a feed port at the top and an outlet at one side. A drive chain 2 is rotatably mounted in the middle of the housing 1. The drive chain 2 is driven by a sprocket 3, which is driven by a motor mounted on the housing 1. Scrapers 4 are spaced apart on the drive chain 2. The scrapers 4 are V-shaped, with the inwardly concave side of the scrapers facing the direction of fertilizer delivery, thereby centrally pushing the fertilizer and reducing the amount of fertilizer moving between the scraper 4 and the housing 1 during delivery, ensuring that most of the fertilizer is delivered from the center of the housing 1. In addition, the width of the scrapers 4 is smaller than the width of the internal space of the housing 1, ensuring normal material delivery while preventing significant wear and tear caused by contact between the scrapers 4 and the inner wall of the housing 1. Smooth rubber pads are installed at the bottom of the scrapers 4 to reduce wear on the bottom wall of the housing 1 and extend the service life of the housing 1.

[0020] Furthermore, flexible cleaning bristles 5 are provided on the side walls of the scraper 4. The cleaning bristles 5 can not only push away a small amount of fertilizer that has moved between the scraper 4 and the inner wall of the housing 1, but can also clean the side walls of the housing 1. Preferably, only one side wall of each scraper 4 is provided with cleaning bristles 5, and the cleaning bristles 5 of two adjacent scrapers 4 are provided on different sides, that is, the cleaning bristles 5 of two adjacent scrapers 4 are provided on the left and right; this ensures that the pushing and cleaning effects are achieved while reducing the excessive friction caused by the contact between the cleaning bristles 5 and the housing 1 during the conveying process, thereby reducing construction costs while ensuring the use effect.

[0021] Furthermore, a support frame 6 is provided on the drive chain 2, and the scraper 4 is elastically connected to the support frame 6. This arrangement enables automatic compensation of the scraper 4 during operation, compensating for the situation in which the bottom of the scraper 4 loses contact with the bottom of the housing 1 due to wear during long-term operation, resulting in some fertilizer remaining at the bottom of the housing 1 and unable to be transported. Specifically, a guide rod 7 is provided at the top of the scraper 4, which is movable through a guide hole defined in the support frame 6. A spring 8 is provided between the guide rod 7 and the support frame 6. When the scraper 4 reaches the bottom of the housing 1 and contacts the bottom of the housing 1, the scraper 4 tends to move upward, at which time the spring 8 is in a stretched state. Preferably, the spring 8 is provided on the top end surface of the support frame 6 where the guide hole is located. The spring 8 is sleeved on the outside of the guide rod 7. An adjustment nut 9 is threadedly provided on the guide rod 7, with the top of the spring 8 abutting the bottom of the adjustment nut 9. The adjustment nut 9 allows the elastic force of the spring 8 to be appropriately adjusted to adjust the amplitude of the upward and downward movement of the scraper 4.

[0022] Furthermore, a fixing bolt 10 is threadedly mounted on the support frame 6 to position the guide rod 7, thereby positioning and fixing the scraper 4 according to actual needs and ensuring the stability of the scraper 4 during operation. In this embodiment, the support frame 6 is an overall V-shaped structure that matches the scraper 4. A cavity is formed within the support frame 6, with the bottom and sides open. The dimensions are preferably matched to the dimensions of the scraper 4. A support plate 11 is disposed within the cavity within the support frame 6, and a guide hole is formed in the support plate 11. A sealing arrangement at the top of the support frame 6 prevents fertilizer from entering the housing 1 and falling between the guide hole and the guide rod 7, thereby affecting the upward and downward movement of the scraper 4. In addition, an adjustment slot 12 is provided at the top of the support frame 6, which is connected to the interior of the housing 1. A sealing plate 13 is removably mounted on the adjustment slot 12. The adjustment slot 12 facilitates adjustment of the adjustment nut 9. The sealing plate 13 can seal the adjustment slot 12 to prevent fertilizer from falling into the support frame 6. The sealing plate 13 is preferably fixed to the adjustment slot 12 by bolts.

[0023] By optimizing the scraper 4 into a V-shaped structure, the utility model can achieve the central push of fertilizer during the fertilizer conveying process, reducing the amount of fertilizer moving between the scraper 4 and the housing 1, while ensuring that most of the fertilizer is discharged from the center of the housing 1, providing convenience for the next step of fertilizer acceptance and / or conveying. At the same time, the provision of the support frame 6 can adjust the vertical height of the scraper 4, so that the scraper 4 can be adjusted after wear, reducing the frequency of scraper 4 replacement, extending its service life, and ensuring the normal conveying of fertilizer.

Claims

1. A scraper for blended fertilizer production, characterized by: It includes a shell, a drive chain is rotatably arranged at the middle position inside the shell, and scrapers are arranged at intervals on the drive chain, wherein the scraper is a V-shaped structure, and the inwardly concave side of the scraper is arranged toward the direction of fertilizer transportation; the width of the scraper is smaller than the width of the internal space of the shell; flexible cleaning bristles are arranged on the side wall of the scraper; a support frame is provided on the drive chain, and the scraper is elastically connected to the support frame; a guide rod is provided on the top of the scraper, and the guide rod moves out from a guide hole opened on the support frame; a spring is provided between the guide rod and the support frame.

2. The scraper for producing blended fertilizer according to claim 1, characterized in that: Only one side wall of each scraper is provided with cleaning bristles, and the cleaning bristles on two adjacent scrapers are provided on different sides.

3. The scraper for producing blended fertilizer according to claim 1, characterized in that: The spring is arranged on the top end face of the support frame where the guide hole is located. The spring is sleeved on the outside of the guide rod. An adjusting nut is threaded on the guide rod, and the top end of the spring abuts against the adjusting nut.

4. The scraper for producing blended fertilizer according to claim 1, characterized in that: The support frame is threadedly provided with a fixing bolt for positioning the guide rod.

5. The scraper for producing blended fertilizer according to claim 3, characterized in that: The support frame as a whole is a V-shaped structure that matches the scraper, with a cavity formed inside it, and the bottom and both sides are open; a support plate is set in the cavity inside the support frame, and the guide hole is opened on the support plate.

6. The scraper for producing blended fertilizers according to claim 5, characterized in that: The top of the support frame is provided with an adjustment groove which is in communication with the interior of the support frame, and a sealing plate is detachably provided on the adjustment groove.

7. The scraper for producing blended fertilizers according to claim 1, characterized in that: A smooth and flat rubber pad is provided at the bottom of the scraper.

Images