Granulation classifying screen

Abstract

The utility model provides a granulation classifying screen which comprises a tank body with a conical lower end, supporting legs arranged at the side end of the bottom of the tank body, a discharging pipe arranged at the bottom of the tank body, a feeding hopper, a plurality of screening screens, a stirring shaft, stirring blades, a driving module, a mounting ring, a telescopic push rod, a knocking plate and a plurality of blanking holes, the through holes and the discharging pipes are arranged in a staggered mode, and control valves are further arranged on the discharging pipes respectively. According to the granulation classifying screen disclosed by the utility model, the basic requirement of classifying and screening fertilizer particles can be met, and the screening structure can be quickly and conveniently dredged, so that the screening structure can continuously and efficiently screen the fertilizer particles; and therefore, the influence on the screening treatment efficiency of the fertilizer particles is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening devices, in particular to a granulation and grading screen. Background Art

[0002] After the fertilizer is granulated by the granulator, it is necessary to grade and screen the fertilizer. Although the existing granulation and grading screen can meet the basic needs of grading and screening the fertilizer, in the process of screening the fertilizer by the screening structure, part of the fertilizer is usually stuck in the sieve holes of the screening structure. The existing grading screen often cannot quickly and conveniently clear the fertilizer stuck in the sieve holes of the screening structure, and the user needs to disassemble, clean and reinstall the screening structure, which affects the efficiency of the fertilizer screening process.

[0003] For example, the utility model with announcement number CN 209753377 U discloses a grading screen for fertilizer production. In the technical solution of this patent, fertilizer particles are graded and screened by a first filter plate, a second filter plate and a third scraper plate. However, since there is no dredging structure for quickly dredging the first filter plate, the second filter plate and the third scraper plate, users need to spend a lot of time and energy to clean the first filter plate, the second filter plate and the third scraper plate. Therefore, it will not only bring great inconvenience to people's use, but also affect the efficiency of screening the fertilizer particles. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art and provides a granulation grading screen, which can not only meet the basic needs of grading and screening fertilizer particles, but also can quickly and conveniently dredge the screening structure, so that the screening structure can continuously and efficiently screen the fertilizer particles, thereby avoiding affecting the efficiency of screening the fertilizer particles.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a granulation grading screen, including a tank body with a conical cylindrical lower end, a supporting leg is arranged at the bottom side end of the tank body, a discharge pipe is arranged at the bottom of the tank body, a feed hopper is arranged at the top side end of the tank body, a plurality of horizontally arranged screens are vertically distributed from top to bottom inside the tank body, the filter holes of the plurality of screens are successively reduced from top to bottom, a stirring shaft passing through the plurality of screens is vertically rotated on the top of the tank body, and stirring blades respectively matched with the plurality of filter screens are arranged at the side ends of the plurality of stirring shafts, and the tank body A driving module for driving the stirring shaft is arranged on the top, and a plurality of mounting rings respectively located under the corresponding screens are arranged on the inner wall of the tank body, and telescopic push rods are respectively arranged vertically on the plurality of mounting rings, and knocking plates are respectively arranged on the output shafts of the plurality of telescopic push rods, and a plurality of drop holes are respectively arranged on the plurality of knocking plates, and through holes matched with the stirring shafts are also arranged on the plurality of knocking plates, and a plurality of discharge pipes respectively matched with the corresponding screens are arranged on the side end of the tank body, and the plurality of discharge pipes are respectively arranged in a staggered manner, and control valves are also respectively arranged on the plurality of discharge pipes.

[0006] As a further improvement of the utility model, a bearing is arranged on the top of the tank body, the upper end of the stirring shaft passes through the top of the tank body and is connected to the inner ring of the bearing, and a through hole matching the stirring shaft is arranged on the top of the tank body.

[0007] As a further improvement of the utility model, the driving module includes a driving motor vertically arranged on the top of the tank body, a driving pulley is arranged on the output shaft of the driving motor, a driven pulley matched with the driving pulley is arranged on the upper end of the stirring shaft, and a transmission belt is arranged between the driving pulley and the driven pulley.

[0008] As a further improvement of the utility model, a transparent observation window is also provided at the side end of the tank body.

[0009] As a further improvement of the present invention, an extension plate is further provided at the bottom side end of the supporting leg, and anchor bolts for fixing to the ground are further provided on the extension plate.

[0010] As a further improvement of the utility model, a top cover is also clamped on the top of the feed hopper, and a handle is also provided on the top cover.

[0011] As a further improvement of the utility model, an extension rod is further provided at the lower end of the stirring shaft, and a scraper plate adapted to the lower end of the tank body is further provided at the lower end of the extension rod via a connecting rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] First, the user can add the fertilizer particles that need to be screened into the tank body through the feed hopper. The fertilizer particles will first fall onto the uppermost screen. Fertilizer particles smaller than the screen will pass through the filter holes of the corresponding screen and fall onto the next screen to continue the screening process at the next level. Fertilizer particles larger than the screen holes of the corresponding screen will be retained on the corresponding screen and temporarily stored. At the same time, the driving module can be used to rotate the stirring shaft and the stirring blades to stir the fertilizer particles that fall onto multiple screens, so that the fertilizer particles can be screened more fully. When it is necessary to clean the fertilizer particles retained on the screen, the feeding hopper can be stopped from adding fertilizer particles to the tank body, the control valve can be opened, and the driving module can be used to rotate the stirring shaft and the stirring blades to stir the fertilizer particles on the screen, so that large fertilizer particles pass through the corresponding discharge pipe and leave the tank body, and then the control valve can be closed. The fertilizer particles that pass through the multiple screens will leave the tank body through the discharge pipe. During the process of screening the fertilizer particles through the sieve mesh, the multiple telescopic push rods corresponding to the multiple sieve meshes can be telescopically operated respectively, so that the knocking plate intermittently knocks the sieve mesh, thereby causing the sieve mesh to vibrate, thereby clearing the fertilizer particles stuck in the sieve holes of the corresponding sieve mesh.

[0014] Secondly, through the transparent observation window, the user can easily check the situation inside the tank, and through the extension plate and anchor bolts, the user can easily move the device to avoid deviation and rollover of the device.

[0015] Thirdly, during the rotation of the stirring shaft, the extension rod and the scraper plate can also be driven to rotate, thereby stirring the fertilizer particles that fall into the lower end of the tank body and preventing the fertilizer particles from adhering to the inner wall of the tank body and making it difficult to discharge the fertilizer, thereby improving the discharge efficiency and smoothness of the fertilizer after multi-layer screening.

[0016] Fourthly, after the device is used, the top cover can be fixedly connected to the feed hopper, thereby preventing foreign matter such as dust from entering the interior of the tank body through the feed hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the screen filter, stirring shaft, stirring blades, mounting ring, telescopic push rod, knocking plate, discharge pipe, control valve, bearing, and driven pulley of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the installation ring, telescopic push rod, knocking plate, blanking hole and through hole of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the stirring shaft, stirring blades, extension rod, connecting rod and scraper plate of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the tank body, through hole and transparent observation window of the utility model.

[0023] In the figure: 101, tank body; 102, supporting leg; 103, discharge pipe; 104, feed hopper; 105, screen filter; 106, stirring shaft; 107, stirring blade; 108, mounting ring; 109, telescopic push rod; 110, knocking plate; 111, drop hole; 112, through hole; 113, discharge pipe; 114, control valve; 115, bearing; 116, through hole; 201, drive motor; 202, driving pulley; 203, driven pulley; 204, transmission belt; 301, extension plate; 302, anchor bolt; 303, top cover; 304, handle; 305, extension rod; 306, connecting rod; 307, scraper plate; 308, transparent observation window. DETAILED DESCRIPTION

[0024] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0025] like Figure 1 , 2As shown in Figure 3, a granulation grading screen comprises a tank body 101 with a conical cylindrical lower end, a supporting leg 102 is arranged at the bottom side end of the tank body 101, a discharge pipe 103 is arranged at the bottom of the tank body 101, a feed hopper 104 is arranged at the top side end of the tank body 101, a plurality of horizontally arranged screens 105 are vertically distributed from top to bottom inside the tank body 101, the filter holes of the plurality of screens 105 decrease from top to bottom, a stirring shaft 106 passing through the plurality of screens 105 is vertically rotatably arranged at the top of the tank body 101, stirring blades 107 respectively matched with the plurality of filter screens are arranged at the side ends of the plurality of stirring shafts 106, and a stirring shaft 106 for rotating the stirring shaft 106 is arranged at the top of the tank body 101. A driving module for driving, a plurality of mounting rings 108 respectively located below the corresponding sieve screens 105 are arranged on the inner wall of the tank body 101, telescopic push rods 109 are respectively vertically arranged on the plurality of mounting rings 108, knocking plates 110 are respectively commonly arranged on the output shafts of the plurality of telescopic push rods 109, a plurality of drop holes 111 are respectively arranged on the plurality of knocking plates 110, and a plurality of through holes 112 matched with the stirring shaft 106 are also arranged on the plurality of knocking plates 110, a plurality of discharge pipes 113 respectively matched with the corresponding sieve screens 105 are arranged on the side end of the tank body 101, the plurality of discharge pipes 113 are respectively arranged in a staggered manner, and a control valve 114 is also respectively arranged on the plurality of discharge pipes 113.

[0026] like Figure 1 , 5 As shown, a bearing 115 is provided on the top of the tank body 101 , the upper end of the stirring shaft 106 passes through the top of the tank body 101 and is connected to the inner ring of the bearing 115 , and a through hole 116 adapted to the stirring shaft 106 is provided on the top of the tank body 101 .

[0027] like Figure 1 As shown, the driving module includes a driving motor 201 vertically arranged on the top of the tank body 101, a driving pulley 202 is arranged on the output shaft of the driving motor 201, a driven pulley 203 adapted to the driving pulley 202 is arranged at the upper end of the stirring shaft 106, and a transmission belt 204 is arranged between the driving pulley 202 and the driven pulley 203.

[0028] The user can add the fertilizer particles that need to be screened into the tank body 101 through the feed hopper 104, and the fertilizer particles will first fall onto the uppermost screen 105. The fertilizer particles smaller than the screen 105 will pass through the filter holes of the corresponding screen 105 and fall onto the next layer of screen 105 to continue the next level of screening. The fertilizer particles larger than the screen holes of the corresponding screen 105 will be retained on the corresponding screen 105 and temporarily stored. At the same time, the drive motor 201 can be started, and the stirring shaft and the stirring blades can be rotated through the cooperation of the active pulley 202, the driven pulley 203 and the transmission belt 204, so as to screen the fertilizer particles that fall onto the multiple screens. The fertilizer particles on the filter screen 105 are stirred so that the fertilizer particles can be screened more fully. When the fertilizer particles retained on the screen filter 105 need to be cleaned, the addition of fertilizer particles to the tank body 101 through the feed hopper 104 can be stopped, and the control valve 114 can be opened. The stirring shaft 106 and the stirring blade 107 can be rotated by the driving module to stir the fertilizer particles on the screen filter 105 so that large-particle fertilizer particles pass through the corresponding discharge pipe 113 and leave the tank body 101. Then the control valve 114 can be closed. The fertilizer particles passing through the multi-layer screen filter 105 will leave the tank body 101 through the discharge pipe 103.

[0029] During the process of screening the fertilizer particles through the sieve mesh 105, the multiple telescopic push rods 109 corresponding to the multiple sieve meshes 105 can be telescopically operated respectively, so that the knocking plate 110 intermittently knocks the sieve mesh 105, thereby causing the sieve mesh to vibrate, thereby clearing the fertilizer particles stuck in the sieve holes of the corresponding sieve mesh, and the fertilizer particles falling through the sieve holes of the sieve mesh 105 can continue to fall through the drop holes 111 on the knocking plate 110.

[0030] According to another embodiment of the present invention, Figure 5 As shown, a transparent observation window 308 is also provided at the side end of the tank body 101. Through the transparent observation window 308, the user can conveniently view the situation inside the tank body 101, and through the extension plate 301 and the anchor bolts 302, the user can conveniently move the device to prevent the device from deflecting and tipping over.

[0031] According to another embodiment of the present invention, Figure 1 As shown, an extension plate 301 is further provided at the bottom side end of the support leg 102, and an anchor bolt 302 for fixing to the ground is also provided on the extension plate 301.

[0032] According to another embodiment of the present invention, Figure 1As shown, the top of the feed hopper 104 is also provided with a top cover 303, and the top cover 303 is also provided with a handle 304. After the device is used, the top cover 303 can be fixedly connected with the feed hopper 104 to prevent foreign matter such as dust from entering the interior of the tank body 101 through the feed hopper 104.

[0033] According to another embodiment of the present invention, Figure 4 As shown, the lower end of the stirring shaft 106 is also provided with an extension rod 305, and the lower end of the extension rod 305 is also provided with a scraper plate 307 adapted to the lower end of the tank body 101 through the connecting rod 306. During the rotation of the stirring shaft 106, the extension rod 305 and the scraper plate 307 can also be driven to rotate, so as to stir the fertilizer particles falling into the lower end of the tank body 101, and prevent the fertilizer particles from adhering to the inner wall of the tank body 101 and being difficult to discharge, thereby improving the discharge efficiency and smoothness of the fertilizer after multi-layer screening.

[0034] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A granulation grading screen, comprising a tank body (101) with a conical lower end, a supporting leg (102) provided at the bottom side end of the tank body (101), a discharge pipe (103) provided at the bottom of the tank body (101), and a feed hopper (104) provided at the top side end of the tank body (101), characterized in that: A plurality of laterally arranged sieve screens (105) are vertically distributed from top to bottom inside the tank body (101), and the filter holes of the plurality of sieve screens (105) are successively reduced from top to bottom. A stirring shaft (106) passing through the plurality of sieve screens (105) is vertically rotatably arranged at the top of the tank body (101), and stirring blades (107) respectively adapted to the plurality of filter screens are arranged at the side ends of the plurality of stirring shafts (106). A driving module for driving the stirring shaft (106) is arranged at the top of the tank body (101), and a plurality of mounting rings (107) respectively located below the corresponding sieve screens (105) are arranged on the inner side wall of the tank body (101). 08), telescopic push rods (109) are respectively arranged vertically on the plurality of mounting rings (108), knocking plates (110) are respectively arranged on the output shafts of the plurality of telescopic push rods (109), a plurality of drop holes (111) are respectively arranged on the plurality of knocking plates (110), and a through hole (112) matched with the stirring shaft (106) is also arranged on the plurality of knocking plates (110), a plurality of discharge pipes (113) respectively matched with the corresponding sieve screens (105) are arranged at the side end of the tank body (101), the plurality of discharge pipes (113) are respectively arranged in a staggered manner, and a control valve (114) is also respectively arranged on the plurality of discharge pipes (113).

2. The granulation and grading screen according to claim 1, characterized in that: A bearing (115) is disposed on the top of the tank body (101); the upper end of the stirring shaft (106) passes through the top of the tank body (101) and is connected to the inner ring of the bearing (115); and a through hole (116) adapted to the stirring shaft (106) is disposed on the top of the tank body (101).

3. The granulation and grading screen according to claim 2, characterized in that: The driving module comprises a driving motor (201) vertically arranged on the top of the tank body (101); a driving pulley (202) is arranged on the output shaft of the driving motor (201); a driven pulley (203) matched with the driving pulley (202) is arranged at the upper end of the stirring shaft (106); and a transmission belt (204) is arranged between the driving pulley (202) and the driven pulley (203).

4. The granulation and grading screen according to claim 3, characterized in that: A transparent observation window (308) is also provided at the side end of the tank body (101).

5. The granulation and grading screen according to claim 4, characterized in that: An extension plate (301) is also provided at the bottom side end of the support leg (102), and an anchor bolt (302) for fixing to the ground is also provided on the extension plate (301).

6. The granulation and grading screen according to claim 5, characterized in that: A top cover (303) is also clamped on the top of the feed hopper (104), and a handle (304) is also provided on the top cover (303).

7. The granulation and grading screen according to claim 6, characterized in that: The lower end of the stirring shaft (106) is also provided with an extension rod (305), and the lower end of the extension rod (305) is also provided with a scraper plate (307) adapted to the lower end of the tank body (101) through a connecting rod (306).

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