Compound fertilizer screening machine capable of preventing adhesion to inner wall of screen drum

Abstract

The utility model discloses a compound fertilizer screening machine capable of preventing adhesion to the inner wall of a screen drum, which relates to the technical field of compound fertilizer processing and comprises a base, a mounting frame is arranged on the base, the screen drum is rotatably arranged in the mounting frame, a mounting rack is arranged on one side of the mounting frame, and a first motor is mounted on the mounting rack. The output end of the first motor is connected with one side of the screen drum, a cleaning assembly used for preventing the compound fertilizer from adhering to the inner wall of the screen drum is arranged in the screen drum, a driving part drives a scraper to move along the inner wall of the screen drum, and in the moving process of the scraper, the edge of the scraper is tightly attached to the inner wall of the screen drum to scrape off the compound fertilizer adhering to the inner wall of the screen drum. And in the screening process, the stirring component works at the same time, the stirring component is located in the screen drum and does not make contact with the screen drum, the compound fertilizer is mixed and turned in the screen drum through the stirring component, the compound fertilizer is prevented from being accumulated and agglomerated in the screening process, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compound fertilizer processing, and specifically relates to a compound fertilizer screening machine for preventing adhesion to the inner wall of a screening cylinder. Background Technique

[0002] Compound fertilizer refers to chemical fertilizer containing two or more nutrient elements. 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 yields of crops. With the continuous development of agricultural production, the demand for compound fertilizer is also increasing continuously. At the same time, the market has higher and higher requirements for the appearance quality, particle size distribution, etc. of compound fertilizer. Therefore, each compound fertilizer production enterprise is actively seeking methods to improve screening efficiency and screening effect; as one of the key production equipment, the performance of the compound fertilizer screening machine directly affects the product quality and production efficiency.

[0003] The patent document with the publication number of CN211563605U discloses a compound fertilizer screening machine, including a screening barrel, a column, a motor, a V-shaped slide plate and a moving rod; by the rotation of the rotating shaft, the V-shaped slide plate is driven to move, the V-shaped slide plate moves to drive the screening barrel to move and screen the compound fertilizer, and the moving rod moves to drive the knocking block to knock the screening barrel, so that the screening barrel can move back and forth while rotating, and is continuously knocked. The back-and-forth movement improves the screening efficiency, and prevents the screening barrel from being blocked by vibration, which is convenient to use.

[0004] When the above patent document is used, the screening barrel is vibrated by knocking to prevent adhesion to the inner wall of the screening cylinder. Since some components in the compound fertilizer may have strong hygroscopicity, when the environmental humidity is high, these components are easy to absorb moisture in the air, resulting in the surface of the material becoming sticky. When screening it, it is easy to adhere to the inner wall of the screening cylinder, and the adsorption force is extremely strong. The compound fertilizer adhering to the inner wall of the screening cylinder cannot be removed by knocking, thus affecting the screening efficiency and product quality. Content of the Utility Model

[0005] Aiming at the above problems, a compound fertilizer screening machine for preventing adhesion to the inner wall of a screening cylinder is provided. By setting a cleaning component for preventing compound fertilizer from adhering to the inner wall of the screening cylinder, the technical problem that compound fertilizer will adhere to the inner wall of the screening cylinder is solved.

[0006] To solve the problems of the existing technology, the utility model provides a compound fertilizer screening machine for preventing adhesion to the inner wall of the screening cylinder, including a base, an installation frame is arranged on the base, a screening cylinder is rotatably arranged in the installation frame, a feed inlet is arranged on the side of the screening cylinder, an installation frame is arranged on one side of the installation frame, a first motor is installed on the installation frame, the output end of the first motor is connected to one side of the screening cylinder, a cleaning component for preventing compound fertilizer from adhering to the inner wall of the screening cylinder is arranged in the screening cylinder, a collection bin is arranged at the bottom of the base, and a vibration component for preventing the screening holes in the screening cylinder from being blocked is arranged between the base and the installation frame.

[0007] Preferably, the cleaning component includes a scraping plate; the scraping plate is arranged in the screening cylinder so as to be movable along the inner wall of the screening cylinder, a driving component for driving the scraping plate to move is arranged in the screening cylinder, and a stirring component for preventing compound fertilizer from accumulating during the screening process is also arranged in the screening cylinder.

[0008] Preferably, the driving component includes a rotating ring, an internal gear ring, a rotating rod, a gear, a knob, a first connecting rod and a connecting block; the rotating ring is rotatably arranged on the inner wall of the screening cylinder; the internal gear ring is installed on the rotating ring; the rotating rod is arranged on the screening cylinder; the gear is arranged at one end of the rotating rod; the knob is arranged at the other end of the rotating rod; the first connecting rod is installed on the rotating ring; the connecting block is arranged on the first connecting rod, and the connecting block is connected to the scraping plate.

[0009] Preferably, the stirring component includes a fixing rod and a stirring rod; the fixing rod is arranged in the screening cylinder; the stirring rod is arranged on the fixing rod.

[0010] Preferably, the vibration component includes a telescopic column, a support frame, a driving rod, a second motor and an eccentric block; the telescopic column is arranged on the base, and the working end of the telescopic column is connected to the installation frame; the support frame is installed on the upper end face of the base; the driving rod is arranged in the support frame; the second motor is arranged on one side of the support frame, and the output end of the second motor is connected to the driving rod; the eccentric block is installed on the driving rod, and frequency increasing components for increasing the vibration frequency are also arranged on both sides of the base.

[0011] Preferably, a first spring is sleeved on the telescopic column, and both ends of the first spring are respectively abutted between the upper end face of the base and the lower end face of the installation frame.

[0012] Preferably, the frequency increasing component includes an upper extension block, a lower extension block, a second connecting rod, a limiting disc and a second spring; the upper extension block is arranged on both sides of the mounting frame; the lower extension block is arranged on both sides of the base; the second connecting rod is arranged on the upper extension block, and one end of the second connecting rod penetrates through the lower extension block and extends outwards; the limiting disc is arranged at the extended end of the second connecting rod; the second spring is sleeved on the second connecting rod, one end of the second spring abuts against the upper extension block, and the other end of the second spring abuts against the lower extension block.

[0013] The beneficial effects of the present utility model compared with the prior art are as follows:

[0014] 1. The scraper is driven by the driving component to move along the inner wall of the sieve cylinder. During the movement of the scraper, its edge closely adheres to the inner wall of the sieve cylinder, scraping off the compound fertilizer adhered to the inner wall of the sieve cylinder, preventing its accumulation and affecting the screening effect. During the screening process, the stirring component works simultaneously. The stirring component is located inside the sieve cylinder, but the fixing rod does not contact the inner wall of the sieve cylinder. The compound fertilizer is mixed and turned in the sieve cylinder by the stirring component, preventing it from accumulating and caking during the screening process and improving the screening efficiency.

[0015] 2. By starting the second motor, its output end starts to rotate and drives the driving rod to rotate together. The rotation of the driving rod further drives the eccentric block to rotate, generating centrifugal force. The centrifugal force generated by the rotation of the eccentric block is transmitted to the mounting frame and the sieve cylinder through the driving rod and the telescopic column. Due to the existence of the eccentric block, a periodic unbalanced force will be generated during the rotation process. This unbalanced force causes the sieve cylinder to vibrate, and by squeezing the telescopic column, the sieve cylinder is more stable during vibration. And through the frequency increasing component, the vibration effect of the sieve cylinder is increased, thereby helping the compound fertilizer to be better dispersed and screened in the sieve cylinder and preventing the sieve holes from being blocked. Description of the Drawings

[0016] Figure 1 is a perspective view of a compound fertilizer screening machine for preventing adhesion to the inner wall of the sieve cylinder from a first perspective.

[0017] Figure 2 is a perspective view of a compound fertilizer screening machine for preventing adhesion to the inner wall of the sieve cylinder from a second perspective.

[0018] Figure 3 is a perspective view of the mounting frame and the sieve cylinder in a compound fertilizer screening machine for preventing adhesion to the inner wall of the sieve cylinder.

[0019] Figure 4 is a three-dimensional sectional view of the sieve cylinder in a compound fertilizer screening machine for preventing adhesion to the inner wall of the sieve cylinder.

[0020] Figure 5 is a perspective view of the rotating ring, the internal gear ring and the scraper in a compound fertilizer screening machine for preventing adhesion to the inner wall of the sieve cylinder.

[0021] Figure 6 It is a side view of a compound fertilizer screening machine that prevents adhesion to the inner wall of the sieve cylinder.

[0022] Figure 7 It is a three-dimensional view of a compound fertilizer screening machine that prevents adhesion to the inner wall of the sieve cylinder from the third perspective.

[0023] The reference numerals in the figure are: 1, base; 2, mounting frame; 3, sieve cylinder; 4, first motor; 5, collection bin; 6, cleaning component; 61, rotating ring; 62, internal gear ring; 63, rotating rod; 64, gear; 65, knob; 66, first connecting rod; 67, connecting block; 68, scraper; 69, fixed rod; 610, stirring rod; 611, rotating cover plate; 7, vibration component; 71, telescopic column; 72, support frame; 73, driving rod; 74, second motor; 75, eccentric block; 76, first spring; 77, upper extension block; 78, lower extension block; 79, second connecting rod; 710, limiting disk; 711, second spring. Detailed implementation manners

[0024] To further understand the features, technical means, specific purposes, and functions achieved by the present utility model, the following further describes the present utility model in detail with reference to the accompanying drawings and specific implementation manners.

[0025] See Figures 1 to 7 As shown, the present utility model provides a compound fertilizer screening machine that prevents adhesion to the inner wall of the sieve cylinder, including a base 1, a mounting frame 2 is arranged on the base 1, a sieve cylinder 3 is rotatably arranged in the mounting frame 2, a feed port is arranged on the side of the sieve cylinder 3, a mounting frame is arranged on one side of the mounting frame 2, a first motor 4 is installed on the mounting frame, the output end of the first motor 4 is connected to one side of the sieve cylinder 3, a cleaning component 6 for preventing compound fertilizer from adhering to the inner wall of the sieve cylinder 3 is arranged in the sieve cylinder 3, a collection bin 5 is arranged at the bottom of the base 1, and a vibration component 7 for preventing the sieve holes in the sieve cylinder 3 from being blocked is arranged between the base 1 and the mounting frame 2.

[0026] By starting the first motor 4, the output end of the motor drives the sieve cylinder 3 to rotate. The rotation of the sieve cylinder 3 causes the compound fertilizer to be screened in the sieve cylinder 3. The qualified particles fall into the collection bin 5 through the sieve cylinder 3. Through the arrangement of the vibration component 7, the mounting frame 2 and the sieve cylinder 3 start to vibrate, which helps the compound fertilizer to be better dispersed in the sieve cylinder 3, improves the screening efficiency, and prevents the sieve holes from being blocked. When the inner wall of the sieve cylinder 3 adheres to compound fertilizer, through the arrangement of the cleaning component 6, the compound fertilizer adhered to the inner wall of the sieve cylinder 3 is removed, preventing the influence on the screening efficiency and product quality.

[0027] See Figures 1 to 5As shown, the cleaning component 6 includes a scraper 68; the scraper 68 is movably arranged inside the screen cylinder 3 along the inner wall of the screen cylinder 3. A driving component for driving the scraper 68 to move is arranged inside the screen cylinder 3, and a stirring component for preventing the compound fertilizer from accumulating during the screening process is also arranged inside the screen cylinder 3.

[0028] The driving component drives the scraper 68 to move along the inner wall of the screen cylinder 3. During the movement of the scraper 68, its edge closely adheres to the inner wall of the screen cylinder 3, scraping off the compound fertilizer adhering to the inner wall of the screen cylinder 3, preventing its accumulation and affecting the screening effect. During the screening process, the stirring component works simultaneously. The stirring component is located inside the screen cylinder 3, but the fixed rod 69 does not contact the inner wall of the screen cylinder 3. The compound fertilizer is mixed and turned inside the screen cylinder 3 by the stirring component, preventing its accumulation and caking during the screening process and improving the screening efficiency.

[0029] See Figure 4 and Figure 5 As shown, the driving component includes a rotating ring 61, an internal gear ring 62, a rotating rod 63, a gear 64, a knob 65, a first connecting rod 66, a connecting block 67 and a rotating cover plate 611; the rotating ring 61 is rotatably arranged on the inner wall of the screen cylinder 3, and the rotating cover plate 611 is fixedly connected to the outside of the rotating ring 61. The fixed rod 69 passes through the central hole of the rotating cover plate 611, realizing the free rotation between the rotating ring 61 and the fixed rod 69. The internal gear ring 62 is installed on the rotating ring 61; the rotating rod 63 is arranged on the screen cylinder 3; the gear 64 is arranged at one end of the rotating rod 63; the knob 65 is arranged at the other end of the rotating rod 63; the first connecting rod 66 is installed on the rotating ring 61; the connecting block 67 is arranged on the first connecting rod 66, and the connecting block 67 is connected to the scraper 68.

[0030] When the screen cylinder 3 stops rotating, the first motor 4 has a built-in braking function to fix the screen cylinder 3 from rotating. The operator rotates the rotating rod 63 through the knob 65. Since the rotating rod 63 is rotatably arranged on one side of the screen cylinder 3, the rotation of the rotating rod 63 drives the gear 64 to rotate. Since the gear 64 meshes with the internal gear ring 62, it drives the internal gear ring 62 to rotate. And since the rotating ring 61 can freely rotate on the inner wall of the screen cylinder 3 and the internal gear ring 62 is fixed on the rotating ring 61, when the internal gear ring 62 rotates, it drives the rotating ring 61 to rotate on the inner wall of the screen cylinder 3. When the rotating ring 61 rotates, the rotating ring 61 will drive the first connecting rod 66 fixed on its inner ring to rotate, and the first connecting rod 66 drives the connecting block 67 to move. The connecting block 67 is connected to the scraper 68, so that the scraper 68 will move along the inner wall of the screen cylinder 3 as the rotating ring 61 rotates, thereby removing the compound fertilizer adhering to the inner wall of the screen cylinder 3 during the movement, preventing its accumulation and affecting the screening effect.

[0031] See Figure 4As shown, the stirring component includes a fixed rod 69 and a stirring rod 610; the fixed rod 69 is arranged inside the sieve cylinder 3; the stirring rod 610 is arranged on the fixed rod 69.

[0032] When the sieve cylinder 3 is driven to rotate by the first motor 4, since the fixed rod 69 is firmly installed inside the sieve cylinder 3, when the sieve cylinder 3 rotates, the stirring rod 610, supported by the fixed rod 69, moves along with the rotation or vibration of the sieve cylinder 3. During the screening process, the stirring rod 610 transports the compound fertilizer from one area of the sieve cylinder 3 to another area, while breaking up the lumps and accumulations therein. This turning and mixing helps the compound fertilizer particles to be better dispersed inside the sieve cylinder 3, thereby increasing the contact area with the sieve mesh and improving the screening efficiency.

[0033] See Figure 6 and Figure 7 As shown, the vibration assembly 7 includes a telescopic column 71, a support frame 72, a drive rod 73, a second motor 74, and an eccentric block 75; the telescopic column 71 is arranged on the base 1, and the working end of the telescopic column 71 is connected to the installation frame 2; the support frame 72 is installed on the upper end surface of the base 1; the drive rod 73 is arranged inside the support frame 72; the second motor 74 is arranged on one side of the support frame 72, and the output end of the second motor 74 is connected to the drive rod 73; the eccentric block 75 is installed on the drive rod 73, and frequency increasing components for increasing the vibration frequency are also arranged on both sides of the base 1.

[0034] By starting the second motor 74, its output end begins to rotate. Since the second motor 74 is installed on one side of the support frame 72, when the second motor 74 rotates, it will transmit the rotational motion to the connected drive rod 73, driving the drive rod 73 to move inside the support frame 72. And the eccentric block 75 is installed on the drive rod 73. When the drive rod 73 rotates, it will drive the eccentric block 75 to rotate. Sometimes the eccentric block 75 will push against the bottom surface of the installation frame. The eccentric block 75 will generate a periodic unbalanced force during the rotation process. Since the telescopic column 71 is a connecting component between the base 1 and the installation frame 2 and can allow a certain degree of elastic deformation, the vibration is transmitted to the installation frame 2 and the sieve cylinder 3 through the telescopic column 71, causing the sieve cylinder 3 to start vibrating at a certain frequency and amplitude. And through the frequency increasing components, the vibration effect of the sieve cylinder 3 is increased, thereby helping the compound fertilizer to be better dispersed and screened inside the sieve cylinder 3 and preventing the sieve holes from being blocked.

[0035] See Figure 6 and Figure 7 As shown, a first spring 76 is sleeved on the telescopic column 71, and both ends of the first spring 76 are respectively abutted between the upper end surface of the base 1 and the lower end surface of the installation frame 2.

[0036] When the vibration assembly 7 works, it will cause the mounting frame 2 and the screening cylinder 3 to vibrate accordingly. This vibration will be transmitted to the telescopic column 71, and then act on the first spring 76 to compress or stretch it. The first spring 76 can absorb and buffer part of the vibration energy by virtue of its elastic characteristics. At the same time, through the action of the first spring 76, it can also maintain the stability of the mounting frame 2 and the screening cylinder 3 during vibration, preventing them from shifting or being damaged due to excessive vibration.

[0037] See Figure 6 and Figure 7 As shown, the frequency increasing component includes an upper extension block 77, a lower extension block 78, a second connecting rod 79, a limiting disc 710 and a second spring 711; the upper extension block 77 is arranged on both sides of the mounting frame 2; the lower extension block 78 is arranged on both sides of the base 1; the second connecting rod 79 is arranged on the upper extension block 77, and one end of the second connecting rod 79 penetrates through the lower extension block 78 and extends outwards; the limiting disc 710 is arranged at the extended end of the second connecting rod 79; the second spring 711 is sleeved on the second connecting rod 79, one end of the second spring 711 abuts against the upper extension block 77, and the other end of the second spring 711 abuts against the lower extension block 78.

[0038] When the vibration assembly 7 works, the mounting frame 2 and the screening cylinder 3 vibrate accordingly. This vibration will be transmitted to the second connecting rod 79 through the upper extension block 77. The second connecting rod 79 will move along the lower extension block 78 and squeeze the second spring 711 on the second connecting rod 79. When the second connecting rod 79 moves downward, the second spring 711 is compressed and stores energy; when the second connecting rod 79 moves upward, the second spring 711 gradually returns to its original state and releases energy. This process of elastic energy storage and release not only enhances the vibration effect, but also makes the vibration more stable and continuous.

[0039] The above embodiments only represent one or several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. A compound fertilizer screening machine for preventing adhesion to the inner wall of a sieve cylinder, characterized in that, It includes a base (1), an installation frame (2) is arranged on the base (1), a sieve cylinder (3) is rotatably arranged in the installation frame (2), a feed port is arranged on the side of the sieve cylinder (3), an installation bracket is arranged on one side of the installation frame (2), a first motor (4) is installed on the installation bracket, and the output end of the first motor (4) that drives the sieve cylinder (3) to rotate is connected to one side of the sieve cylinder (3). A cleaning component (6) for preventing compound fertilizer from adhering to the inner wall of the sieve cylinder is arranged in the sieve cylinder (3), a collection bin (5) is arranged at the bottom of the base (1), and a vibration component (7) for preventing the sieve holes in the sieve cylinder (3) from being blocked is arranged between the base (1) and the installation frame (2).

2. The compound fertilizer screening machine for preventing adhesion to the inner wall of the sieve cylinder according to claim 1, wherein, The cleaning component (6) includes a scraper (68); The scraper (68) is movably arranged along the inner wall of the sieve cylinder (3) in the sieve cylinder (3). A driving component for driving the scraper (68) to move is arranged in the sieve cylinder (3), and a stirring component for preventing compound fertilizer from accumulating during the screening process is also arranged in the sieve cylinder (3).

3. The compound fertilizer screening machine for preventing adhesion to the inner wall of the sieve cylinder according to claim 2, wherein, The driving component includes a rotating ring (61), an internal gear ring (62), a rotating rod (63), a gear (64), a knob (65), a first connecting rod (66) and a connecting block (67); The rotating ring (61) is rotatably arranged on the inner wall of the sieve cylinder (3); The internal gear ring (62) is installed on the rotating ring (61); The rotating rod (63) is arranged on the sieve cylinder (3); The gear (64) is arranged at one end of the rotating rod (63); The knob (65) is arranged at the other end of the rotating rod (63); The first connecting rod (66) is installed on the rotating ring (61); The connecting block (67) is arranged on the first connecting rod (66), and the connecting block (67) is connected to the scraper (68).

4. A compound fertilizer screening machine for preventing adhesion to the inner wall of a sieve cylinder according to claim 2, characterized in that, The stirring component includes a fixing rod (69) and a stirring rod (610); The fixing rod (69) is arranged in the sieve cylinder (3); The stirring rod (610) is arranged on the fixing rod (69).

5. A compound fertilizer screening machine for preventing adhesion to the inner wall of a sieve cylinder according to claim 1, characterized in that, The vibration component (7) includes a telescopic column (71), a support frame (72), a driving rod (73), a second motor (74) and an eccentric block (75); The telescopic column (71) is arranged on the base (1), and the working end of the telescopic column (71) is connected to the installation frame (2); The support frame (72) is installed on the upper end face of the base (1); The driving rod (73) is arranged in the support frame (72); The second motor (74) is arranged on one side of the support frame (72), and the output end of the second motor (74) is connected to the driving rod (73); The eccentric block (75) is installed on the driving rod (73), and frequency increasing components for increasing the vibration frequency are also arranged on both sides of the base (1).

6. A compound fertilizer screening machine for preventing adhesion to the inner wall of a sieve cylinder according to claim 5, characterized in that, A first spring (76) is sleeved on the telescopic column (71), and both ends of the first spring (76) are respectively abutted between the upper end face of the base (1) and the lower end face of the installation frame (2).

7. A compound fertilizer screening machine for preventing adhesion to the inner wall of a sieve cylinder according to claim 5, characterized in that, The frequency increasing components include an upper extension block (77), a lower extension block (78), a second connecting rod (79), a limiting disc (710) and a second spring (711); The upper extension block (77) is arranged on both sides of the mounting frame (2); The lower extension block (78) is arranged on both sides of the base (1); The second connecting rod (79) is arranged on the upper extension block (77), and one end of the second connecting rod (79) penetrates through the lower extension block (78) and extends outwards; The limiting disc (710) is arranged at the extending end of the second connecting rod (79); The second spring (711) is sleeved on the second connecting rod (79), one end of the second spring (711) abuts against the upper extension block (77), and the other end of the second spring (711) abuts against the lower extension block (78).

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