A raw material filtration device for liquid fertilizer

Abstract

This utility model relates to a raw material filtration device for liquid fertilizer, comprising an outer cylinder closed at both ends, an inner cylinder open at both ends inside the outer cylinder, a sealing plate extending from one end of the outer cylinder at the lower end of the inner cylinder, an flared structure at the upper end of the inner cylinder supporting the inner wall of the outer cylinder, a gap between the inner and outer cylinders, filter holes provided on the peripheral wall of the portion of the inner cylinder inside the outer cylinder, a closable sealing door provided at the lower end of the inner cylinder, a liquid inlet at the upper end of the outer cylinder communicating with the inner cavity of the inner cylinder, and a liquid outlet at the lower end of the outer cylinder communicating with the gap between the inner and outer cylinders. The raw material filtration device for liquid fertilizer of this utility model has an inner cylinder open at both ends inside the outer cylinder, and a closable sealing door at the lower end of the inner cylinder. Opening the sealing door allows for easy cleaning of filter residue and debris adhering to the inner wall of the inner cylinder, making the cleaning of the inner cylinder simple and convenient.

Description

Technical Field

[0001] This utility model relates to a filtration device, and more particularly to a raw material filtration device for liquid fertilizer, belonging to the field of liquid fertilizer processing technology. Background Technology

[0002] In the existing technology, when processing liquid fertilizer, the raw materials are usually mixed with water and fermented. After fermentation, the mixture is filtered by a filtration device. The filtration device has filter holes. The filtrate flows out of the filtration device through the filter holes, while the filter residue cannot pass through the filter holes and remains in the filtration device. The resulting filtrate is the liquid fertilizer.

[0003] When filtering liquid fertilizer raw materials, hair, large solid particles, and other contaminants are retained as filter cake in the filtration device. These contaminants also adhere to the inner wall of the filtration device, clogging the filter pores. However, existing filtration devices typically lack a dedicated outlet for discharging the filter cake, making it inconvenient to clean the filter cake and the debris adhering to the inner wall of the filtration device. Utility Model Content

[0004] The purpose of this invention is to provide a raw material filtration device for liquid fertilizers, so as to solve the problem that it is inconvenient to clean the filter residue and debris adhering to the inner wall of the filter device in the existing raw material filtration devices for liquid fertilizers.

[0005] To solve the above problems, the raw material filtration device for liquid fertilizer involved in this utility model adopts the following technical solution:

[0006] A raw material filtration device for liquid fertilizer includes an outer cylinder closed at both ends, an inner cylinder open at both ends inside the outer cylinder, a sealing plate extending from the lower end of the inner cylinder to one end of the outer cylinder, an flared structure at the upper end of the inner cylinder supporting the inner wall of the outer cylinder, a gap between the inner and outer cylinders, filter holes on the peripheral wall of the portion of the inner cylinder inside the outer cylinder, a closable sealing door at the lower end of the inner cylinder, an inlet at the upper end of the outer cylinder communicating with the inner cavity of the inner cylinder, and an outlet at the lower end of the outer cylinder communicating with the gap between the inner and outer cylinders.

[0007] The inner cylinder is provided with a cleaning head, which has a head and claws on its circumference that contact the inner wall of the inner cylinder. The head also has a column extending out of the outer cylinder, which is driven by a power structure to reciprocate up and down while rotating.

[0008] The lower end of the head is also provided with claw spikes.

[0009] The flared structure of the inner cylinder is supported by the upward stepped surface of the outer cylinder and the inner wall of the outer cylinder.

[0010] The power structure is driven by a threaded transmission device. The column has an external thread, and a nut is screwed onto the thread. The outer circumferential surface of the nut is provided with transmission teeth, and the nut is driven to rotate by a drive gear.

[0011] The sealing door is rotatably mounted on the inner cylinder on one side, and the other side of the sealing door is detachably fixed to the inner cylinder through a fastening structure.

[0012] A sealing gasket is provided on the side where the door mates with the inner cylinder.

[0013] The liquid fertilizer raw material filtration device of this utility model has an inner cylinder with openings at both ends inside the outer cylinder. The lower end of the inner cylinder extends out of the sealing plate at one end of the outer cylinder. The upper end of the inner cylinder has a flared structure that supports and cooperates with the inner wall of the outer cylinder. There is a gap between the inner and outer cylinders. Filter holes are provided on the peripheral wall of the part of the inner cylinder inside the outer cylinder. A sealing door that can be opened and closed is provided on the lower end of the inner cylinder. Opening the sealing door allows for easy cleaning of the filter residue in the inner cylinder and the debris adhering to the inner wall of the inner cylinder. Cleaning the inner cylinder is simple and convenient. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below:

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 The main view;

[0017] Figure 3 for Figure 2 Schematic diagram of AA section in the middle;

[0018] Figure 4 for Figure 1 A schematic diagram of the inner cylinder;

[0019] Figure 5 for Figure 1 A schematic diagram of the cleaning head in the image.

[0020] The diagram is labeled as follows: 1. Outer cylinder, 2. Inner cylinder, 3. Sealing plate, 4. Sealing door, 5. Liquid inlet, 6. Liquid outlet, 7. Cleaning head, 8. Head, 9. Claw, 10. Column, 11. Nut, 12. Snap-fit ​​structure, 13. Hinge. Detailed Implementation

[0021] To make the technical objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model; that is, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Specific embodiments of the liquid fertilizer raw material filtration device involved in this utility model are as follows: Figures 1-5 The device comprises an outer cylinder 1 that is closed at both ends, an inner cylinder 2 that is open at both ends, a sealing plate 3 extending from the lower end of the inner cylinder 2 to one end of the outer cylinder 1, an upper end of the inner cylinder 2 having a flared structure that supports and cooperates with the inner wall of the outer cylinder 1, a gap between the inner and outer cylinders, a filter hole on the peripheral wall of the portion of the inner cylinder 2 inside the outer cylinder 1, the inner cylinder 2 being used to filter the raw materials of liquid fertilizer, the gap between the inner and outer cylinders being a containment gap for containing the filtrate filtered from the inner cylinder 2, the outer cylinder 1 being used to collect the filtrate filtered from the inner cylinder 2, a sealing door 4 that can be opened and closed at the lower end of the inner cylinder 2, an inlet 5 communicating with the inner cavity of the inner cylinder 2 at the upper end of the outer cylinder 1, and an outlet 6 communicating with the gap between the inner and outer cylinders at the lower end of the outer cylinder 1.

[0023] When filtering liquid fertilizer, first close the sealing valve 4, seal the outlet 6, and open the inlet 5. Then, inject the liquid fertilizer raw material to be filtered into the inner cylinder 2 through the inlet 5. The filtrate enters the outer cylinder 1 through the filter holes on the circumferential wall of the inner cylinder 2, while the filter residue remains in the inner cylinder 2. The solution obtained in the outer cylinder 1 is the filtered liquid fertilizer. Afterward, open the outlet 6 to discharge the liquid fertilizer from the outer cylinder 1. When it is necessary to discharge the filter residue in the inner cylinder 2, open the sealing valve 4, and the filter residue will be discharged from the inner cylinder 2 under its own gravity. When it is necessary to clean the adhering substances in the inner cylinder 2, open the sealing valve 4 for convenient cleaning of the inner cylinder 2.

[0024] Specifically, the inner cylinder 2 is equipped with a cleaning head 7, which has a head 8. The head 8 has claws 9 on its circumference that contact the inner wall of the inner cylinder 2. The head 8 also has a column 10 extending from the outer cylinder 1. The column 10 is driven by a power structure to rotate and reciprocate up and down. When it is necessary to clean the deposits in the inner cylinder 2, the sealing door 4 is opened, and the power structure drives the column 10 to rotate and move downwards. The claws 9 on the head 8 of the cleaning head 7, which contact the inner wall of the inner cylinder 2, can then remove hair, solid dirt, and other impurities adhering to the inner wall of the inner cylinder 2. When it is necessary to filter liquid fertilizer, the sealing door 4 is closed, the outlet 6 is sealed, and the inlet 5 is opened. The power structure drives the column 10 to rotate and move upwards, causing the head 8 of the cleaning head 7 to move onto the flared structure of the inner cylinder 2, restoring the connection between the inlet 5 and the inner cavity of the inner cylinder 2, allowing for the filtration of liquid fertilizer again.

[0025] Specifically, the lower end of the head 8 is also provided with claw spikes 9. When cleaning the inner cylinder 2, the claw spikes 9 at the lower end of the head 8 work together with the claw spikes 9 on the circumferential surface of the head 8 to improve cleaning efficiency.

[0026] Specifically, the flared structure of the inner cylinder 2 is supported by the upward stepped surface of the outer cylinder 1 and the inner wall of the outer cylinder 1. The flared structure allows the inner cylinder 2 to be supported on the stepped surface of the inner wall of the outer cylinder 1, thereby confining the upper edge of the inner cylinder 2 and the part of the inner cylinder 2 with filter holes together in the outer cylinder 1; at the same time, the flared structure can also prevent the cleaning head 7 from moving the inner cylinder 2 downward when it moves downward.

[0027] Specifically, the power structure is driven by a threaded transmission device. The column 10 has external threads, and a nut 11 is screwed onto the threaded column 10. The nut 11 is rotatably mounted on the outer cylinder 1. The outer circumferential surface of the nut 11 is provided with transmission teeth. The nut 11 is driven to rotate by a drive gear (not shown in the figure). When the drive gear drives the nut 11 to rotate, the internal threads on the nut 11 rotate synchronously, and drive the column 10 to rotate upward or downward through the external threads on the column 10.

[0028] Specifically, the sealing door 4 is rotatably mounted on the inner cylinder 2 on one side via a hinge 13, and the other side of the sealing door 4 is detachably fixed to the inner cylinder via a fastening structure 12.

[0029] Specifically, a sealing gasket (not shown in the figure) is provided on the side of the sealing door 4 that mates with the inner cylinder 2. The sealing gasket can prevent liquid in the inner cylinder 2 from overflowing from the sealing door 4.

[0030] In the above embodiment, a cleaning head is provided in the inner cylinder, which is an optimized technical solution. In other embodiments, the cleaning head may not be provided.

[0031] In the above embodiment, the lower end of the head of the cleaning head is also provided with claws, which is an optimized technical solution. In other embodiments, claws can also be provided only on the periphery of the head of the cleaning head.

[0032] In the above embodiment, the flared structure of the inner cylinder is supported and engaged with the inner wall of the outer cylinder through the upward stepped surface of the outer cylinder. This is an optimized technical solution. In other embodiments, a support ring can also be provided on the inner wall of the outer cylinder so that the flared structure of the inner cylinder is supported and engaged with the inner wall of the outer cylinder through the upward stepped surface of the support ring.

[0033] In the above embodiment, the power structure is driven by a threaded transmission device, which is an optimized technical solution. In other embodiments, the threaded transmission device can be replaced by a motor, with the main body of the motor fixed on the outer cylinder and the motor shaft fixed on the column of the cleaning head.

[0034] In the above embodiments, the sealing door is rotatably mounted on the inner cylinder on one side. In other embodiments, the sealing door can also be screwed onto the inner cylinder and opened or closed by rotating it to the limit position in the opposite direction.

[0035] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this utility model. Any equivalent substitutions and modifications or partial substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of protection of the claims of this utility model.

Claims

1. A raw material filtering device of a liquid fertilizer, characterized by, It includes an outer cylinder that is closed at both ends, an inner cylinder that is open at both ends inside the outer cylinder, a sealing plate that extends from the lower end of the inner cylinder to one end of the outer cylinder, an flared structure at the upper end of the inner cylinder that supports and fits with the inner wall of the outer cylinder, a gap between the inner and outer cylinders, filter holes on the peripheral wall of the part of the inner cylinder that is inside the outer cylinder, a closable sealing door at the lower end of the inner cylinder, an inlet at the upper end of the outer cylinder that communicates with the inner cavity of the inner cylinder, and an outlet at the lower end of the outer cylinder that communicates with the gap between the inner and outer cylinders.

2. The raw material filtering device for liquid fertilizer according to claim 1, characterized by, The inner cylinder is provided with a cleaning head, which has a head and claws on its circumference that contact the inner wall of the inner cylinder. The head also has a column extending out of the outer cylinder, which is driven by a power structure to reciprocate up and down while rotating.

3. The raw material filtering device of the liquid fertilizer according to claim 2, characterized by, The lower end of the head is also provided with claw spikes.

4. The raw material filtering device for liquid fertilizer according to claim 3, characterized by, The flared structure of the inner cylinder is supported by the upward stepped surface of the outer cylinder and the inner wall of the outer cylinder.

5. The raw material filtering device for liquid fertilizer according to claim 4, characterized by, The power structure is driven by a threaded transmission device. The column has an external thread, and a nut is screwed onto the thread. The outer circumferential surface of the nut is provided with transmission teeth, and the nut is driven to rotate by a drive gear.

6. The raw material filtering device for liquid fertilizer according to claim 5, wherein The sealing door is rotatably mounted on the inner cylinder on one side, and the other side of the sealing door is detachably fixed to the inner cylinder through a fastening structure.

7. The raw material filtering device for liquid fertilizer according to claim 6, characterized by A sealing gasket is provided on the side where the door mates with the inner cylinder.

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