A solid-liquid separation device for fulvic acid extraction

Abstract

The utility model discloses a solid -liquid separation device for fulvic acid extraction belongs to chemical fertilizer production technical field, a solid -liquid separation device for fulvic acid extraction, including separation pond, be provided with lower filter plate, upper filter plate at separation pond, be provided with lower filter hole in lower filter plate, be provided with upper filter hole in upper filter plate, and upper filter hole is aligned with lower filter hole, be provided with frame on lower filter plate, and the side wall of upper filter plate leans on the inner wall of frame, the utility model provides a solid -liquid separation device for fulvic acid extraction, and the filter plate is divided into lower filter plate and upper filter plate, and the upper filter plate is divided into a plurality of separate components that are spaced apart, and is covered on the lower filter plate, so, even if solid impurity scratches, wears the upper filter plate, and when replacing, only need to replace the upper filter plate of serious wear can, and the cost of need replacing greatly reduces.

Description

Technical Field

[0001] This utility model belongs to the field of fertilizer production technology, specifically relating to a solid-liquid separation device for the extraction of fulvic acid. Background Technology

[0002] The production process of fulvic acid mainly involves the following steps: Step 1: Selecting raw materials The raw materials can be lignite and weathered coal, both of which play important roles in the production of mineral-derived humic acid.

[0003] Step 2: Pre-treatment of raw materials by crushing and activation.

[0004] Step 3: Alkali extraction treatment Step 4: Perform solid-liquid separation. The resulting liquid can be directly dried, and the solid part obtained after drying is the desired fulvic acid.

[0005] After solid-liquid separation, the resulting liquid can be directly dried, and the solid fraction obtained after drying is the desired fulvic acid. However, when producing fulvic acid from raw materials such as lignite and weathered coal, the solution obtained before solid-liquid separation contains a large number of solid impurities. These solid impurities can scratch and wear down the upper surface of the filter plate during filtration, rendering the filter plate unusable. Replacing the filter plate with a complete one is costly. Therefore, this application proposes a solid-liquid separation device for fulvic acid extraction. Utility Model Content

[0006] The purpose of this invention is to provide a solid-liquid separation device for the extraction of fulvic acid, in order to solve the problem mentioned in the background art that the solution obtained before solid-liquid separation contains a lot of solid impurities. When these solid impurities are filtered on the filter plate, they will scratch and wear the upper surface of the filter plate, making the filter plate unusable, and the cost of replacing the complete filter plate is high.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a solid-liquid separation device for fulvic acid extraction, comprising a separation tank, wherein a lower filter plate and an upper filter plate are provided in the separation tank, the lower filter plate is provided with a lower filter hole, the upper filter plate is provided with an upper filter hole, and the upper filter hole is aligned with the lower filter hole. The lower filter plate is provided with a frame, and the side wall of the upper filter plate abuts against the inner wall of the frame; A positioning rod is provided at the upper filter plate, and the positioning rod is detachably connected to the frame. A positioning plate is inserted into the lower filter plate, and several positioning tubes that cooperate with the lower filter holes are inserted into the positioning plate. When the upper filter plate is pressed on the lower filter plate, the positioning tubes are inserted into the upper filter holes. The separation tank is equipped with a solid collection tank, which is located in the area at the end and below the lower filter plate.

[0008] Preferably, multiple upper filter plates are provided, and the multiple upper filter plates are distributed at the same intervals on the upper side of the lower filter plate.

[0009] Preferably, the separation tank is provided with at least two bottom plates, which abut against the lower end surface of the lower filter plate, and the lower filter plate is inclined downward.

[0010] Preferably, the frame has several slots, and the upper filter plate has two symmetrically distributed inserts that cooperate with the slots.

[0011] Preferably, the positioning rod is inserted into the insert block, and a positioning hole that mates with the positioning rod is provided in the frame.

[0012] Preferably, an inclined plate is provided between two adjacent upper filter plates, the upper end surface of the inclined plate is higher than the height of the side of the upper filter plate where the upper filter holes are provided, and the inclined plate is provided with a chamfer structure.

[0013] Preferably, the inclined plate is provided with a sealing gasket on the side near the upper filter plate to seal the contact between the inclined plate and the upper filter plate.

[0014] Preferably, a guide plate is provided between the lower filter plate and the frame, the lower end face of the guide plate is in contact with the lower filter plate, and an inclined surface inclined to the upper side of the guide plate is provided.

[0015] Preferably, a side panel is provided at the frame, and the side panel is fitted to the outer wall of the frame.

[0016] Preferably, a number of parallel positioning bolts are inserted into the side plate, and the lower filter plate is provided with threaded grooves that mate with the positioning bolts.

[0017] Beneficial effects: This invention provides a solid-liquid separation device for the extraction of fulvic acid. When producing fulvic acid from raw materials such as lignite and weathered coal, the solution obtained before solid-liquid separation contains a large number of solid impurities. These solid impurities can scratch and wear down the upper surface of the filter plate during filtration, rendering the filter plate unusable. In this device, the filter plate is divided into a lower filter plate and an upper filter plate. The upper filter plate is composed of multiple separate components that cover the lower filter plate. Thus, even if solid impurities scratch or wear down the upper filter plate, only the severely worn upper filter plate needs to be replaced, greatly reducing the replacement cost. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the solid-liquid separation device for fulvic acid extraction in this utility model; Figure 2 This is a side view of the solid-liquid separation device for fulvic acid extraction in this invention. Figure 3 This is a schematic diagram of the internal structure of the solid-liquid separation device for fulvic acid extraction in this utility model; Figure 4 This is a schematic diagram of the positioning plate and positioning tube in this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Separation tank; 2. Lower filter plate; 3. Base plate; 4. Frame; 5. Upper filter plate; 6. Positioning rod; 7. Insert block; 8. Inclined plate; 9. Sealing gasket; 10. Positioning plate; 11. Positioning tube; 12. Side plate; 13. Positioning bolt; 14. Solid collection tank. Detailed Implementation

[0020] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0021] like Figures 1-4 As shown in the figure, the present invention provides a solid-liquid separation device for fulvic acid extraction, including a separation tank 1, a lower filter plate 2 and an upper filter plate 5 are provided in the separation tank 1, the lower filter plate 2 is provided with a lower filter hole, the upper filter plate 5 is provided with an upper filter hole, and multiple upper filter plates 5 are provided, and the multiple upper filter plates 5 are distributed at the same interval on the upper side of the lower filter plate 2, and the upper filter hole is aligned with the lower filter hole.

[0022] This technical solution uses a filter plate for the solid-liquid separation process.

[0023] To install the lower filter plate 2, at least two bottom plates 3 are provided in the separation tank 1. The bottom plates 3 rest against the lower end face of the lower filter plate 2. The lower filter plate 2 is inclined downwards and tilted to one side, so that the material can move downwards along the lower filter plate 2 and be distributed to various positions of the lower filter plate 2. In this way, after separation by the lower filter plate 2 and the upper filter plate 5, the solid waste is separated out. A corresponding vibration unit, such as a vibration motor, can be installed at the bottom plate 3 to drive the filter plate to vibrate and accelerate the material separation speed.

[0024] To restrict the material entering the filter plate and prevent it from falling directly to the bottom of the separation tank 1 without passing through the filter holes, a frame 4 is provided on the lower filter plate 2. The frame 4 is square with one side missing. The side wall of the upper filter plate 5 abuts against the inner wall of the frame 4. Several slots are provided inside the frame 4. Two symmetrically distributed inserts 7 are provided on the upper filter plate 5. The inserts 7 cooperate with the slots. A positioning rod 6 is inserted into the inserts 7. The frame 4 is provided with positioning holes that cooperate with the positioning rod 6. The positioning rod 6 is provided at the upper filter plate 5 and is detachably connected to the frame 4.

[0025] The upper filter plate 5 and the frame 4 are assembled together by a detachable connection, which makes it easier to disassemble the upper filter plate 5.

[0026] It should be noted that an inclined plate 8 is provided between two adjacent upper filter plates 5. The upper end surface of the inclined plate 8 is higher than the height of the side of the upper filter plate 5 where the upper filter hole is provided. The inclined plate 8 is provided with a chamfer structure, and a sealing gasket 9 is provided on the side of the inclined plate 8 near the upper filter plate 5 to seal the contact between the inclined plate 8 and the upper filter plate 5.

[0027] The inclined plate 8 fills the recessed space between two adjacent upper filter plates 5 to prevent material from getting stuck in the recessed space.

[0028] Specifically, a guide plate is provided between the lower filter plate 2 and the frame 4. The lower end face of the guide plate is in contact with the lower filter plate 2, and an inclined surface that slopes upward to the filter plate 5 is provided on the upper side of the guide plate.

[0029] In order to ensure that the upper filter plate 5 and the lower filter plate 2 are aligned when connected, a positioning plate 10 is inserted into the lower filter plate 2. Several positioning tubes 11 that cooperate with the lower filter holes are inserted into the positioning plate 10. When the upper filter plate 5 is pressed on the lower filter plate 2, the positioning tubes 11 are inserted into the upper filter holes.

[0030] The positioning tube 11 does not need to cover all the lower filter holes, but full coverage can better protect the upper and lower filter holes. The positioning tube 11 is inserted into the lower filter plate 2 to guide the connection between the upper filter plate 5 and the lower filter plate 2, and to prevent the material from getting stuck between the upper filter plate 5 and the lower filter plate 2 due to misalignment between the upper and lower filter holes. At the same time, the alignment of the upper and lower filter holes can ensure that the material can be filtered normally and quickly.

[0031] In order to fix the position between the frame 4 and the lower filter plate 2, a side plate 12 is provided at the frame 4. The side plate 12 is attached to the outer wall of the frame 4, and several parallel positioning bolts 13 are inserted at the side plate 12. The lower filter plate 2 is provided with a threaded groove that mates with the positioning bolts 13.

[0032] It should be noted that a solid collection tank 14 is provided inside the separation tank 1. The solid collection tank 14 is located in the area at the end and below the lower filter plate 2.

[0033] In summary, this utility model provides a solid-liquid separation device for fulvic acid extraction. After solid-liquid separation, the resulting liquid can be directly dried, and the solid portion obtained after drying is the desired fulvic acid. However, when using raw materials such as lignite and weathered coal to produce fulvic acid, the solution obtained before solid-liquid separation contains a large number of solid impurities. These solid impurities will scratch and wear the upper surface of the filter plate when filtered, rendering the filter plate unusable. In this device, the filter plate is divided into a lower filter plate 2 and an upper filter plate 5. The upper filter plate 5 is divided into multiple separate components that cover the lower filter plate 2. Thus, even if solid impurities scratch or wear the upper filter plate 5, only the severely worn upper filter plate 5 needs to be replaced, greatly reducing the replacement cost.

[0034] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A solid-liquid separation device for fulvic acid extraction, comprising a separation tank (1), characterized in that, The separation tank (1) is provided with a lower filter plate (2) and an upper filter plate (5). The lower filter plate (2) is provided with a lower filter hole, and the upper filter plate (5) is provided with an upper filter hole. The upper filter hole is aligned with the lower filter hole. A frame (4) is provided on the lower filter plate (2), and the side wall of the upper filter plate (5) abuts against the inner wall of the frame (4); A positioning rod (6) is provided at the upper filter plate (5), and the positioning rod (6) is detachably connected to the frame (4); A positioning plate (10) is inserted into the lower filter plate (2), and a number of positioning tubes (11) that cooperate with the lower filter holes are inserted into the positioning plate (10). When the upper filter plate (5) is pressed on the lower filter plate (2), the positioning tubes (11) are inserted into the upper filter holes. The separation tank (1) is equipped with a solid collection tank (14), which is located at the end and lower side of the lower filter plate (2).

2. The solid-liquid separation device for fulvic acid extraction as described in claim 1, characterized in that, The upper filter plate (5) is provided in multiple ways, and the multiple upper filter plates (5) are distributed at the same interval on the upper side of the lower filter plate (2).

3. The solid-liquid separation device for fulvic acid extraction as described in claim 1, characterized in that, The separation tank (1) is provided with at least two bottom plates (3), which abut against the lower end surface of the lower filter plate (2), which is inclined downward.

4. The solid-liquid separation device for humic acid extraction as described in claim 1, characterized in that, The frame (4) has several slots, and the upper filter plate (5) has two symmetrically distributed inserts (7), which cooperate with the slots.

5. A solid-liquid separation device for fulvic acid extraction as described in claim 4, characterized in that, The positioning rod (6) is inserted into the insert block (7), and the frame (4) is provided with a positioning hole that cooperates with the positioning rod (6).

6. The solid-liquid separation device for humic acid extraction as described in claim 1, characterized in that, An inclined plate (8) is provided between two adjacent upper filter plates (5). The upper end surface of the inclined plate (8) is higher than the height of the side of the upper filter plate (5) where the upper filter hole is provided. A chamfer structure is provided at the inclined plate (8).

7. A solid-liquid separation device for fulvic acid extraction as described in claim 6, characterized in that, The inclined plate (8) is provided with a sealing gasket (9) on the side near the upper filter plate (5) for sealing the contact between the inclined plate (8) and the upper filter plate (5).

8. The solid-liquid separation device for fulvic acid extraction as described in claim 1, characterized in that, A guide plate is provided between the lower filter plate (2) and the frame (4). The lower end face of the guide plate is in contact with the lower filter plate (2). An inclined surface that is inclined to the side of the upper filter plate (5) is provided on the upper side of the guide plate.

9. A solid-liquid separation device for humic acid extraction as described in claim 1, characterized in that, A side plate (12) is provided at the frame (4), and the side plate (12) is attached to the outer wall of the frame (4).

10. A solid-liquid separation device for humic acid extraction as described in claim 9, characterized in that, Several parallel positioning bolts (13) are inserted into the side plate (12), and the lower filter plate (2) is provided with a threaded groove that mates with the positioning bolts (13).

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