Grinding and screening device for powder water-soluble fertilizer production

Abstract

The utility model discloses a grinding and screening device for powder water-soluble fertilizer production, which belongs to the technical field of powder water-soluble fertilizer production and comprises a grinding box, a cushion block for quantifying granular fertilizer required by the powder water-soluble fertilizer is arranged in an inner cavity of the grinding box, and a driving motor is mounted on one side surface of the grinding box. The output end of the driving motor penetrates through the grinding box to be connected with a rotating rod, the peripheral side of the rotating rod is fixedly sleeved with a protruding block used for pushing a cushion block, two partition plates are symmetrically installed on the inner walls of the two sides of the grinding box, two fixing plates are symmetrically welded to the positions, located below the cushion block, of the inner side wall of the grinding box, and two vertical rods are symmetrically welded to the bottom face of the cushion block. The two fixing plates are arranged on the peripheral sides of the two vertical rods in a sliding and sleeving mode correspondingly, and a feeding opening used for adding granular fertilizer needed by the powder water-soluble fertilizer is formed in the top face of the grinding box. According to the grinding and screening device for powder water-soluble fertilizer production, the problem that blockage is prone to occurring during grinding is solved, and the grinding and screening efficiency of powder water-soluble fertilizer is improved.

Description

Technical Field

[0001] This utility model belongs to the field of powder water-soluble fertilizer production technology, and in particular, it is a grinding and screening device for powder water-soluble fertilizer production. Background Technology

[0002] Powdered water-soluble fertilizer is a compound fertilizer that can completely dissolve in water. In the production of powdered water-soluble fertilizer, granular fertilizer is often ground and crushed before being dissolved with liquid fertilizer. However, when grinding granular fertilizer using equipment, most of the time it is done manually. Manual feeding makes it difficult to control the amount added, which can cause the equipment to become clogged due to insufficient grinding capacity, thus affecting the efficiency of grinding and screening powdered water-soluble fertilizer.

[0003] A Chinese patent (authorization announcement number CN219334366U) discloses a water-soluble fertilizer production equipment, which includes: "a grinding box, a crushing box fixedly installed on the top outer wall of the grinding box, a discharge port fixedly installed on the bottom right outer wall of the grinding box, a crushing motor fixedly installed on the left outer wall of the crushing box, and a feed port fixedly installed on the top outer wall of the crushing box."

[0004] It is evident that the cited patent document has the problem that the added fertilizer may not be ground in time and cause blockage. Utility Model Content

[0005] The purpose of this invention is to provide a grinding and screening device for the production of powdered water-soluble fertilizers, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding and screening device for producing powdered water-soluble fertilizer, comprising a grinding box, the inner cavity of which is provided with a pad for quantitatively dispensing granular fertilizer required for the powdered water-soluble fertilizer, a drive motor installed on one side of the grinding box, the output end of which passes through the grinding box and is connected to a rotating rod, a protrusion for pushing the pad is fixedly sleeved on the periphery of the rotating rod, two partitions are symmetrically installed on the inner walls of both sides of the grinding box, two fixing plates are symmetrically welded to the inner side wall of the grinding box below the pad, two vertical rods are symmetrically welded to the bottom surface of the pad, the two fixing plates are slidably sleeved on the periphery of the two vertical rods respectively, and a feed port for adding the granular fertilizer required for the powdered water-soluble fertilizer is provided on the top surface of the grinding box.

[0007] Preferably, the inner wall of the grinding box is rotatably connected to two rotating shafts via pins, and grinding rollers are fixedly sleeved on the periphery of both rotating shafts.

[0008] Preferably, a C-shaped bracket is fixedly installed on one side of the grinding box, and one end of each of the two rotating shafts passes through the grinding box and is rotatably connected to one side of the bracket.

[0009] Preferably, meshing gears are fixedly fitted around the periphery of both shafts and within the inner cavity of the bracket.

[0010] Preferably, a rotary motor is mounted on one side of the bracket, and the output end of the rotary motor passes through the bracket and is connected and fixed to one end of one of the rotating shafts.

[0011] Preferably, inclined guide plates are welded to the inner walls of both sides of the grinding box, and baffle plates are welded to the bottom surface of both guide plates.

[0012] Preferably, the inner wall of the grinding box is equipped with a sieve plate with a screen, and one side of the grinding box is equipped with a collection box.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] This powder water-soluble fertilizer production grinding and screening device provides power for the rotation of the protrusions by turning on the drive motor, thereby realizing the longitudinal reciprocating motion of the pad. This allows granular fertilizer to indirectly pass through the gap between the pad and the partition, thus achieving quantitative addition of granular fertilizer. Compared with existing devices that grind the granular fertilizer required for powder water-soluble fertilizer, this device can quantitatively add granular fertilizer, avoiding the situation where too much fertilizer is added and cannot be ground in time, thus improving the efficiency of powder water-soluble fertilizer grinding and screening.

[0015] By turning on the rotary motor, power can be provided to rotate the shaft, thus enabling the grinding rollers to rotate. The two meshing gears installed allow the two grinding rollers to rotate in opposite directions to grind the granular fertilizer. The welded fixing plate and vertical rod can limit the movement trajectory of the pad and prevent deviation. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the grinding box of this utility model;

[0019] Figure 3 For the present utility model Figure 2Enlarged schematic diagram of the structure at point B;

[0020] Figure 4 For the present utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the diagram: 1. Grinding box; 2. Pad; 3. Drive motor; 4. Rotating rod; 5. Protrusion; 6. Partition; 7. Fixing plate; 8. Vertical rod; 9. Rotating shaft; 10. Grinding roller; 11. Guide plate; 12. Baffle plate; 13. Support; 14. Gear; 15. Rotary motor; 16. Screening plate; 17. Collection box; 18. Feed inlet. Detailed Implementation

[0023] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0024] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0025] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0026] like Figures 1 to 4 The device shown is a grinding and screening device for producing powdered water-soluble fertilizer, including a grinding box 1, the top surface of which is provided with a feed inlet 18 for adding granular fertilizer required for the powdered water-soluble fertilizer.

[0027] The grinding chamber 1 has a pad 2 inside for metering the granular fertilizer required for the powdered water-soluble fertilizer. A drive motor 3 is installed on one side of the grinding chamber 1. The output end of the drive motor 3 passes through the grinding chamber 1 and is connected to a rotating rod 4. A protrusion 5 for pushing the pad 2 is fixedly sleeved on the periphery of the rotating rod 4. Two partitions 6 are symmetrically installed on the inner walls of both sides of the grinding chamber 1. The top surface of the pad 2 and the bottom surface of the two partitions 6 are both set at an incline. In the initial state, the top surface of the pad 2 is in contact with the bottom surface of the two partitions 6. After the granular fertilizer required for the powdered water-soluble fertilizer is added into the grinding chamber 1 through the feed port 18, it will fall onto the surface of the pad 2 and be placed between the two partitions 6. At this time, the drive motor 3 is turned on to push the pad 2. The rotating rod 4 rotates, which in turn drives the protrusion 5 to rotate. When the protruding end of the protrusion 5 rotates 180 degrees, the pad 2 can move downward due to its weight, thereby widening the gap between the pad 2 and the two partitions 6, allowing the granular fertilizer to pass through the gap and fall downward for grinding. When the protruding end of the protrusion 5 continues to rotate 180 degrees, it will push the pad 2 upward, so that the top surface of the pad 2 can abut against the bottom surface of the two partitions 6, preventing the granular fertilizer from passing through the gap. By repeating the operation, the granular fertilizer can be added in a quantitative manner, avoiding the situation where too much fertilizer is added and there is not enough time for grinding, thus improving the efficiency of grinding and screening of powdered water-soluble fertilizer.

[0028] Two fixing plates 7 are symmetrically welded to the inner wall of the grinding box 1 and below the pad 2. Two vertical rods 8 are symmetrically welded to the bottom surface of the pad 2. The two fixing plates 7 are slidably sleeved on the periphery of the two vertical rods 8. When the pad 2 performs longitudinal reciprocating motion, the pad 2 will drive the two vertical rods 8 to perform longitudinal reciprocating motion in the inner cavity of the fixing plates 7, so that the fixing plates 7 and the vertical rods 8 can restrict the movement trajectory of the pad 2.

[0029] The inner wall of the grinding box 1 is rotatably connected to two rotating shafts 9 via pins. Grinding rollers 10 are fixedly sleeved on the periphery of each of the two rotating shafts 9. A C-shaped bracket 13 is fixedly installed on one side of the grinding box 1. One end of each of the two rotating shafts 9 passes through the grinding box 1 and is rotatably connected to one side of the bracket 13. Meshing gears 14 are fixedly sleeved on the periphery of each of the two rotating shafts 9 and within the inner cavity of the bracket 13. A rotary motor 15 is installed on one side of the bracket 13. The output end of the rotary motor 15 passes through the bracket 13 and one end of one of the rotating shafts 9. The powdered water-soluble fertilizer is fixed in place. After the granular fertilizer required by the powdered water-soluble fertilizer passes through the spacer 2 and the partition 6, it will fall between the two grinding rollers 10. At this time, the rotary motor 15 is turned on, which can drive one of the rotating shafts 9 to rotate. Since the gears 14 on the periphery of the two rotating shafts 9 mesh with each other, when the rotating shaft 9 rotates, it will drive the other rotating shaft 9 to rotate in the opposite direction through the two gears 14. Thus, the two rotating shafts 9 drive the two grinding rollers 10 to rotate clockwise and counterclockwise respectively, and grind the granular fertilizer required by the powdered water-soluble fertilizer.

[0030] The inner walls of both sides of the grinding box 1 are welded with inclined guide plates 11. The two guide plates 11 are located above the two grinding rollers 10. The granular fertilizer passing through the spacer block 2 and the partition plate 6 will fall onto the surface of the two guide plates 11. The granular fertilizer will move along the inclined surface of the guide plates 11, thus ensuring that the granular fertilizer can move between the two grinding rollers 10. The bottom surface of the two guide plates 11 is welded with baffle plates 12. The baffle plates 12 can prevent the grinding granular fertilizer from splashing everywhere.

[0031] The inner wall of the grinding box 1 is equipped with a sieve plate 16 with a screen. The sieve plate 16 is inclined. A collection box 17 with a collection box is installed on one side of the grinding box 1. A through groove is provided on one side of the grinding box 1, and one side of the sieve plate 16 extends into the inner cavity of the through groove. The through groove is located on one side of the collection box 17. A collection cabinet is placed on the inner bottom surface of the grinding box 1. After grinding, the granular fertilizer will fall onto the surface of the sieve plate 16. Qualified granular fertilizer will pass through the screen and fall into the collection cabinet, while unqualified granular fertilizer will move along the inclined angle of the sieve plate 16 and pass through the through groove to fall into the collection box in the collection box 17. Personnel can take out the collection box and put the unqualified granular fertilizer back into the grinding box 1 through the feed port 18 for secondary grinding.

[0032] Working principle:

[0033] This powder water-soluble fertilizer production grinding and screening device adds the required granular fertilizer into the grinding box 1 through the feed inlet 18, and the granular fertilizer falls onto the surface of the pad block 2. At this time, the drive motor 3 is turned on, and the rotating rod 4 drives the protrusion 5 to rotate. When the protruding end of the protrusion 5 rotates 180 degrees, the pad block 2 can move downward due to its weight, thereby widening the gap between the pad block 2 and the two partitions 6, allowing the granular fertilizer to pass through the gap and fall downward for grinding. When the protruding end of the protrusion 5 rotates 360 degrees, it will push the pad block 2 upward again, so that the top surface of the pad block 2 can abut against the bottom surface of the two partitions 6, preventing the granular fertilizer from passing through the gap. By repeating the operation, the granular fertilizer can be added in a quantitative manner, avoiding the situation where too much fertilizer is added and cannot be ground in time, thus improving the grinding and screening efficiency of powder water-soluble fertilizer.

[0034] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding and screening device for producing powdered water-soluble fertilizer, comprising a grinding box (1), characterized in that: The grinding box (1) has a pad (2) for quantitatively dispensing granular fertilizer required for water-soluble powder fertilizer in its inner cavity. A drive motor (3) is installed on one side of the grinding box (1). The output end of the drive motor (3) passes through the grinding box (1) and is connected to a rotating rod (4). A protrusion (5) for pushing the pad (2) is fixedly sleeved on the periphery of the rotating rod (4). Two partitions (6) are symmetrically installed on the inner walls of both sides of the grinding box (1). Two fixing plates (7) are symmetrically welded to the inner wall of the grinding box (1) and below the pad (2). Two vertical rods (8) are symmetrically welded to the bottom surface of the pad (2). The two fixing plates (7) are slidably sleeved on the periphery of the two vertical rods (8). The top surface of the grinding box (1) is provided with a feed inlet (18) for adding granular fertilizer required for water-soluble powder fertilizer.

2. The grinding and screening device for producing powdered water-soluble fertilizer according to claim 1, characterized in that: The inner wall of the grinding box (1) is rotatably connected to two rotating shafts (9) by a pin, and grinding rollers (10) are fixedly sleeved on the periphery of both rotating shafts (9).

3. The grinding and screening device for producing powdered water-soluble fertilizer according to claim 2, characterized in that: A C-shaped bracket (13) is fixedly installed on one side of the grinding box (1), and one end of each of the two rotating shafts (9) passes through the grinding box (1) and is rotatably connected to one side of the bracket (13).

4. The grinding and screening device for producing powdered water-soluble fertilizer according to claim 3, characterized in that: Two gears (14) that mesh with each other are fixedly fitted around the periphery of the two shafts (9) and within the cavity of the bracket (13).

5. The grinding and screening device for producing powdered water-soluble fertilizer according to claim 3, characterized in that: A rotary motor (15) is installed on one side of the bracket (13), and the output end of the rotary motor (15) passes through the bracket (13) and is connected and fixed to one end of one of the rotating shafts (9).

6. The grinding and screening device for producing powdered water-soluble fertilizer according to claim 1, characterized in that: The grinding box (1) has inclined guide plates (11) welded to the inner walls on both sides, and baffle plates (12) are welded to the bottom surfaces of both guide plates (11).

7. The grinding and screening device for producing powdered water-soluble fertilizer according to claim 1, characterized in that: The inner wall of the grinding box (1) is equipped with a sieve plate (16) with a screen, and a collection box (17) with a collection box is installed on one side of the grinding box (1).

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