Multi-stage screening machine for organic fertilizer production

Abstract

The utility model belongs to the technical field of multi-stage screening machines, and particularly relates to an organic fertilizer production multi-stage screening machine which comprises a middle shell and a reciprocating motion set driving the middle shell to do reciprocating motion, a plurality of screens are installed in the middle shell from top to bottom, the upper sides of the screens are all fixedly connected with separation frames, the outer sides of the screens are fixedly connected with inner shells, and the inner shells are fixedly connected with the separation frames. The inner shell is vertically and slidably connected into the middle shell, the middle shell is in threaded connection with a positioning screw capable of abutting against the inner shell, a positioning hole is formed in the side face, opposite to the positioning screw, of the inner shell, the positioning screw can extend into the positioning hole, and guide grooves are formed in the positions, located at the upper end and the lower end of the positioning hole, of the side face of the inner shell. The opening depth of the guide groove is gradually increased from the end away from the center of the positioning hole to the end close to the center of the positioning hole. Organic fertilizer can be divided into multiple groups to be filtered, and the accumulation thickness of the organic fertilizer during reciprocating movement is reduced, so that the contact area between the organic fertilizer and the screen is larger, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of multi-stage screening machines, and specifically relates to a multi-stage screening machine for producing organic fertilizer. Background Art

[0002] In the production process of organic fertilizer, the organic fertilizer needs to be screened through a screen. In order to speed up the screening efficiency of the screen, the screen needs to be moved. There are many ways to move the screen, such as reciprocating movement, shaking movement, and up and down movement;

[0003] The Chinese patent with the authorization announcement number CN217474060U discloses a reciprocating screening machine for the production of biological organic fertilizer, which has a multi-stage screening function for materials, can complete the classification of returned materials, so as to facilitate the subsequent efficient processing of returned materials, greatly improve the production efficiency of organic fertilizer, and is highly practical. It is also easy to disassemble and maintain, and has strong practicality;

[0004] However, when the organic fertilizer moves back and forth on the screen, the organic fertilizer moved to the end of the screen tends to pile up, and the pile thickness is relatively thick, which greatly reduces the contact area between the organic fertilizer and the screen and affects the filtering efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-stage screening machine for organic fertilizer production, which can divide the organic fertilizer into multiple groups for filtering, reduce the accumulation thickness of the organic fertilizer when it moves back and forth, so that the organic fertilizer and the screen have a larger contact area and improve the filtering efficiency.

[0006] The technical solutions adopted in this utility are as follows:

[0007] A multi-stage screening machine for producing organic fertilizer comprises a middle shell and a reciprocating motion group driving the middle shell to perform a reciprocating motion. A plurality of screens are installed inside the middle shell from top to bottom, and a partition frame is fixedly connected to the upper side of the plurality of screens.

[0008] Furthermore, the outer side of the screen is fixedly connected to an inner shell, the inner shell is vertically slidably connected to the inside of the middle shell, and the middle shell is threadedly connected to a positioning screw that can abut against the inner shell.

[0009] Furthermore, positioning holes are provided on the sides opposite to the inner shell and the positioning screw, and the positioning screw can extend into the interior of the positioning hole. Guide grooves are provided on the sides of the inner shell and at the upper and lower ends of the positioning hole, and the depth of the guide grooves gradually increases from the end farthest from the center of the positioning hole to the end close to the center of the positioning hole.

[0010] Furthermore, the reciprocating action group includes an outer shell, the middle shell is horizontally slidably connected to the inside of the outer shell, a horizontally arranged electric push rod is fixedly connected to the outer shell, and the output end of the electric push rod is fixedly connected to the middle shell.

[0011] Furthermore, a feed hopper is fixedly connected to the upper side of the outer shell, a connecting hose is connected to the lower part of the feed hopper, an end of the connecting hose away from the feed hopper is connected to a discharge pipe, the discharge pipe is installed on the upper side of the middle shell through a movable group, and a discharge trough is provided on the lower side of the discharge pipe.

[0012] Furthermore, the moving group includes a transmission motor fixedly connected to the middle shell and a threaded connection block fixedly connected to the discharge pipe, the output end of the transmission motor is fixedly connected to a screw, the screw and the threaded connection block are threadedly connected, and the discharge pipe is horizontally slidably connected inside the middle shell.

[0013] The technical effects achieved by this utility model are:

[0014] The practical multi-stage screening machine for organic fertilizer production divides the screen into multiple small filter screens by setting a partition frame, and can divide the organic fertilizer into multiple groups for filtering, thereby reducing the accumulation thickness of the organic fertilizer when it moves back and forth, so that the organic fertilizer and the screen have a larger contact area, and the filtering efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of this utility model;

[0016] Figure 2 It is a schematic diagram of the cutaway structure of the present utility model;

[0017] Figure 3 It is a schematic diagram of the cutaway structure of the shell in the present utility model;

[0018] Figure 4 It is a structural schematic diagram of the practical inner shell;

[0019] Figure 5 This is a practical Figure 4 A partial enlarged view of point A in the middle.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Outer shell; 2. Electric push rod; 3. Middle shell; 4. Inner shell; 5. Screen; 6. Partition frame; 7. Feed hopper; 8. Discharge pipe; 9. Connecting hose; 10. Transmission motor; 11. Screw; 12. Threaded connection block; 13. Positioning screw; 14. Positioning hole; 15. Guide groove. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0023] like Figure 1-3 As shown, a multi-stage screening machine for producing organic fertilizer includes a middle shell 3 and a reciprocating action group for driving the middle shell 3 to perform a reciprocating action. A plurality of screens 5 are installed inside the middle shell 3 from top to bottom. The apertures of the plurality of screens 5 gradually decrease in order from top to bottom. When the action group drives the middle shell 3 to move, the organic fertilizer on the screen 5 will be driven to move, and the organic fertilizer will be filtered in sequence through the three layers of screens 5.

[0024] The core of the technical solution is that a partition frame 6 is fixedly connected to the upper side of the plurality of screens 5, and the screen 5 is divided into a plurality of small filter screens by the partition frame 6, so that the organic fertilizer is divided into a plurality of groups for filtering, and the accumulation thickness of the organic fertilizer when it moves back and forth is reduced, so that the organic fertilizer and the screen 5 have a larger contact area, thereby improving the filtering efficiency.

[0025] Here, if Figure 3-4 As shown, in order to conveniently clean the residue on the screen 5, the outer side of the screen 5 is fixedly connected with the inner shell 4, the inner shell 4 is vertically slidably connected to the inside of the middle shell 3, and the inner shell 4 can slide out from the inside of the middle shell 3. When the inner shell 4 slides out from the inside of the middle shell 3, the residue on the screen 5 can be cleaned;

[0026] In order to fix the inner shell 4, the middle shell 3 is threadedly connected with a positioning screw 13 that can abut against the inner shell 4. Figure 3-5 As shown, a positioning hole 14 is provided on the side opposite to the inner shell 4 and the positioning screw 13, and the positioning screw 13 can extend to the inside of the positioning hole 14 for more stable fixation. Guide grooves 15 are provided on the side of the inner shell 4 and at the upper and lower ends of the positioning hole 14. The depth of the guide groove 15 gradually increases from the end away from the center of the positioning hole 14 to the end close to the center of the positioning hole 14, thereby forming a guiding slope, so that the positioning screw 13 can more easily enter the interior of the positioning hole 14.

[0027] like Figure 1-2 As shown, the reciprocating action group includes an outer shell 1, a middle shell 3 horizontally slidably connected to the inside of the outer shell 1, a horizontally arranged electric push rod 2 is fixedly connected to the outer shell 1, and the output end of the electric push rod 2 is fixedly connected to the middle shell 3. When the electric push rod 2 is started, it can drive the middle shell 3 to move back and forth, and its structure is relatively simple.

[0028] At the same time, the outer side of the outer shell 1 may also be fixedly connected with supporting legs for supporting the outer shell 1 .

[0029] like Figure 1-2 As shown, in order to conveniently and evenly input the organic fertilizer into each small filter screen, a feed hopper 7 is fixedly connected to the upper side of the outer shell 1, and a connecting hose 9 is connected to the lower part of the feed hopper 7. The end of the connecting hose 9 away from the feed hopper 7 is connected to a discharge pipe 8, and the discharge pipe 8 is installed on the upper side of the middle shell 3 through a moving group. When the organic fertilizer is poured into the feed hopper 7, the organic fertilizer will enter the discharge pipe 8 through the connecting hose 9. A discharge trough is provided on the lower side of the discharge pipe 8. The organic fertilizer in the discharge pipe 8 is discharged through the discharge trough, and the discharge pipe 8 is driven by the moving group to move on the upper side of the middle shell 3, so that the organic fertilizer can be evenly input into each small filter screen.

[0030] Specifically, the moving group includes a transmission motor 10 fixedly connected to the middle shell 3 and a threaded connection block 12 fixedly connected to the discharge pipe 8. The output end of the transmission motor 10 is fixedly connected to a screw 11, and the screw 11 and the threaded connection block 12 are threadedly connected. The discharge pipe 8 is horizontally slidably connected inside the middle shell 3. At this time, the screw 11 can be driven to rotate by starting the transmission motor 10. When the screw 11 rotates, it will push the threaded connection block 12, so that the threaded connection block 12 drives the discharge pipe 8 to move repeatedly on the upper side of the middle shell 3.

[0031] The working principle of the utility model is as follows: when the organic fertilizer is poured into the inside of the feed hopper 7, the organic fertilizer will enter the inside of the discharge pipe 8 through the connecting hose 9, and the organic fertilizer inside the discharge pipe 8 will be discharged through the discharge trough, and the discharge pipe 8 will be driven by the moving group to move on the upper side of the middle shell 3, so that the organic fertilizer can be evenly input into each small filter screen;

[0032] When the action group drives the middle shell 3 to move, it will drive the organic fertilizer on the screen 5 to move, and the organic fertilizer will be filtered in sequence through the three layers of screen 5;

[0033] In summary, the technical solution divides the screen 5 into multiple small filters by setting a partition frame 6, which can divide the organic fertilizer into multiple groups for filtering, reduce the accumulation thickness of the organic fertilizer when it moves back and forth, so that the organic fertilizer and the screen 5 have a larger contact area, thereby improving the filtering efficiency.

[0034] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A multi-stage screening machine for producing organic fertilizer, comprising a middle shell (3) and a reciprocating motion group for driving the middle shell (3) to perform a reciprocating motion, characterized in that: A plurality of screens (5) are installed inside the middle shell (3) from top to bottom, and a partition frame (6) is fixedly connected to the upper side of each of the plurality of screens (5).

2. A multi-stage screening machine for producing organic fertilizer according to claim 1, characterized in that: The outer side of the screen (5) is fixedly connected to an inner shell (4), the inner shell (4) is vertically slidably connected to the inside of the middle shell (3), and the middle shell (3) is threadedly connected to a positioning screw (13) that can abut against the inner shell (4).

3. A multi-stage screening machine for producing organic fertilizer according to claim 2, characterized in that: A positioning hole (14) is provided on the side opposite to the inner shell (4) and the positioning screw (13), and the positioning screw (13) can extend into the interior of the positioning hole (14). Guide grooves (15) are provided on the side of the inner shell (4) and at the upper and lower ends of the positioning hole (14), and the depth of the guide grooves (15) gradually increases from the end away from the center of the positioning hole (14) to the end close to the center of the positioning hole (14).

4. A multi-stage screening machine for producing organic fertilizer according to claim 1, characterized in that: The reciprocating motion group comprises an outer shell (1), the middle shell (3) is horizontally slidably connected to the inside of the outer shell (1), a horizontally arranged electric push rod (2) is fixedly connected to the outer shell (1), and the output end of the electric push rod (2) is fixedly connected to the middle shell (3).

5. A multi-stage screening machine for producing organic fertilizer according to claim 4, characterized in that: A feed hopper (7) is fixedly connected to the upper side of the outer shell (1), a connecting hose (9) is connected to the lower part of the feed hopper (7), an end of the connecting hose (9) away from the feed hopper (7) is connected to a discharge pipe (8), the discharge pipe (8) is installed on the upper side of the middle shell (3) through a moving group, and a discharge trough is provided on the lower side of the discharge pipe (8).

6. A multi-stage screening machine for producing organic fertilizer according to claim 5, characterized in that: The moving group comprises a transmission motor (10) fixedly connected to the middle shell (3) and a threaded connection block (12) fixedly connected to the discharge pipe (8); the output end of the transmission motor (10) is fixedly connected to a screw rod (11); the screw rod (11) and the threaded connection block (12) are threadedly connected; and the discharge pipe (8) is horizontally slidably connected inside the middle shell (3).

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