Multi-channel control device for adding trace elements to bio-organic fertilizer

Abstract

The utility model relates to biological organic fertilizer trace element adds with multichannel control device, including frame and multiple sets of adding passageway department, and adding passageway department includes the trace element storage tank and electromagnetic metering valve of installation on the frame, is equipped with first three -way pipe between the trace element storage tank and electromagnetic metering valve, and the second end of first three -way pipe is connected with electromagnetic metering valve feed end, and the first end of second three -way pipe is connected with the discharge end of electromagnetic metering valve, still including self -cleaning unit, and the cleaning unit includes multi -media supply module and medium flow module, and multi -media supply module includes acid cleaning solution tank, alkaline cleaning solution tank and fresh water tank, and medium flow module is used for flowing the medium in acid cleaning solution tank, alkaline cleaning solution tank and fresh water tank inside to first three -way pipe, through the utility model can be through acid -base, clean water three -step self -cleaning and pipe anti -sticking coating, make pipe residual rate and jam rate effectively reduce.

Description

Technical Field

[0001] This utility model relates to the technical field of bio-organic fertilizer production equipment, and in particular to a multi-channel control device for adding trace elements to bio-organic fertilizer. Background Technology

[0002] In the production of bio-organic fertilizers, the precise ratio of trace elements (such as zinc, boron, iron, manganese, etc., usually added at 0.1%-2% of the total organic fertilizer) directly affects the nutritional balance of the fertilizer and the crop absorption effect.

[0003] Existing trace element addition devices often use powdered or granular trace elements (such as borax and zinc sulfate). After long-term use, these elements tend to clump together in pipes and valves, clogging the channels and requiring shutdown for disassembly and cleaning, which affects production continuity. There is a lack of targeted self-cleaning systems, and relying solely on water rinsing cannot remove stubborn residues in the pipes (such as scale formed by the reaction of alkaline trace elements with acidic organic fertilizers). Long-term accumulation will further aggravate blockages and accuracy errors. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a multi-channel control device for adding trace elements to bio-organic fertilizers. The specific technical solution is as follows:

[0005] A multi-channel control device for adding trace elements to bio-organic fertilizer includes a frame and multiple sets of adding channels. Each adding channel includes a trace element storage tank and an electromagnetic metering valve mounted on the frame. A first three-way pipe is provided between the trace element storage tank and the electromagnetic metering valve. The first end of the first three-way pipe is connected to the outlet of the trace element storage tank, and the second end of the first three-way pipe is connected to the inlet of the electromagnetic metering valve. The outlet of the electromagnetic metering valve is connected to the first end of a second three-way pipe.

[0006] It also includes a self-cleaning unit, which includes a multi-media supply module and a media flow module. The multi-media supply module includes an acidic cleaning solution tank, an alkaline cleaning solution tank, and a clean water tank. The media flow module is used to flow the media inside the acidic cleaning solution tank, the alkaline cleaning solution tank, and the clean water tank into the first three-way pipe.

[0007] Preferably, the medium flow module includes a second main pipe, a first pump body, a second pump body and a third pump body, the third end of the first three-way pipe is connected to the second main pipe through a second branch pipe, and a first one-way valve is installed on the third end of the first three-way pipe;

[0008] The input end of the first pump body is connected to the interior of the acidic cleaning solution tank through a pipe, and the output end of the first pump body is connected to the second main pipe through a first flow pipe. The input end of the second pump body is connected to the interior of the alkaline cleaning solution tank through a pipe, and the output end of the second pump body is connected to the second main pipe through a second flow pipe. The input end of the third pump body is connected to the interior of the clean water tank through a pipe, and the output end of the third pump body is connected to the second main pipe through a third flow pipe.

[0009] Preferably, a fourth check valve is installed on the first flow pipe, a fifth check valve is installed on the second flow pipe, and a sixth check valve is installed on the third flow pipe.

[0010] Preferably, it also includes a cleaning and recycling unit, which includes a first main pipe and a circulation pipe. The second end of the second tee pipe is connected to a first branch pipe, and a second one-way valve is installed on the first branch pipe. The end of the first branch pipe away from the second tee pipe is connected to the first main pipe. One end of the circulation pipe is connected to the first main pipe, and the other end of the circulation pipe is connected to the inside of the clean water tank. A third one-way valve is installed on the circulation pipe. A valve one is installed at the bottom end of the first main pipe, a valve two is installed at the first end of the first tee pipe, and a valve three is installed at the third end of the second tee pipe.

[0011] Preferably, a filter box is installed on the circulation pipe, and the filter box contains a filter core layer and an activated carbon adsorption layer.

[0012] Preferably, the device also includes a controller, and a flow sensor is installed at the discharge end of the electromagnetic metering valve. The flow sensor, the first pump body, the second pump body, the third pump body, the first check valve, the second check valve, the third check valve, the fourth check valve, the fourth check valve, and the sixth check valve are all electrically connected to the controller.

[0013] The beneficial effects of this utility model are:

[0014] 1. Significantly improved addition accuracy: Through multi-channel independent electromagnetic metering valves and flow closed-loop control, addition error is reduced and product quality consistency is greatly improved;

[0015] 2. Excellent anti-clogging effect: Through a three-step self-cleaning process of "acid and alkali + water" + anti-stick coating on pipes, the pipe residue rate and clogging rate are effectively reduced;

[0016] 3. High degree of automation in cleaning: The controller controls the cleaning process, eliminating the need for manual disassembly and reducing cleaning time from the traditional 2 hours / cycle to 18 minutes / cycle, saving labor costs;

[0017] 4. Resource recycling: After cleaning, the clean water is treated by the filter box and then returned to the clean water tank, which improves the water resource utilization rate; residual trace elements can be recovered after filtration with the cleaning solution (such as undissolved particles), reducing raw material waste by 5%.

[0018] 5. High adaptability: 3-6 channels can add multiple trace elements at the same time. The equipment occupies only 2.5㎡ (traditional multi-equipment requires 10㎡), and is suitable for bio-organic fertilizer production lines with a capacity of 50,000-200,000 tons / year. It is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the filter box in this utility model.

[0021] Reference numerals: 1. Frame; 2. Trace element storage tank; 3. Electromagnetic metering valve; 30. First tee pipe; 301. First check valve; 31. Flow sensor; 4. Second tee pipe; 5. First branch pipe; 51. Second check valve; 6. First main pipe; 61. Valve 1; 7. Circulation pipe; 71. Third check valve; 8. Filter box; 81. Filter core layer; 82. Activated carbon adsorption layer; 9. Second branch pipe; 10. Second main pipe; 11. Acidic cleaning solution tank; 12. First pump body; 121. First flow pipe; 13. Alkaline cleaning solution tank; 14. Second pump body; 141. Second flow pipe; 15. Clean water tank; 16. Third pump body; 161. Third flow pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Example

[0024] For a multi-channel control device for adding trace elements to bio-organic fertilizer, please refer to [reference needed]. Figures 1-2 It includes a frame 1, multiple sets of adding channels, a self-cleaning unit, a cleaning and recycling unit, and an electrical control system. The bottom of the frame 1 is provided with anchor bolt holes (for easy fixing). The top is fixed with the trace element storage tank 2 in layers by angle steel brackets. Pipes and valves are installed in the middle, and the side is reserved for the installation of the cleaning liquid tank and pump body.

[0025] The multi-channel addition section is equipped with 3-6 groups (adapting to the simultaneous addition of 3-6 trace elements), each group is independently controlled, including a trace element storage tank 2, a first three-way pipe 30, an electromagnetic metering valve 3, a flow sensor 31, and a second three-way pipe 4, to realize the storage, metering and transportation of trace elements.

[0026] The top of the trace element storage tank 2 is equipped with a sealing cover (with a pressure balancing valve to prevent negative pressure inside the tank from causing poor material discharge). The inner wall is polished to Ra≤0.8μm and sprayed with a 0.1mm thick polytetrafluoroethylene coating (to reduce material adhesion). The bottom of the tank is welded with a discharge pipe, and valve 2 (manual ball valve, model Q11F-16, used to shut off the material inside the tank during maintenance) is installed on the pipe.

[0027] The three ports of the first three-way pipe 30 are connected as follows: the first end is connected to the discharge pipe of the trace element storage tank 2 through a flange to receive the trace elements in the tank; the second end is connected to the inlet end of the electromagnetic metering valve 3 through a flange to transport the material to the metering valve; the third end is connected to the second main pipe 10 of the self-cleaning unit through the second branch pipe 9 to receive the cleaning medium; the third end of the first three-way pipe 30 is also equipped with a first one-way valve 301 (model H12W-16P, check valve direction, cleaning medium → first three-way pipe 30, to prevent trace elements from flowing back into the cleaning pipeline).

[0028] The electromagnetic metering valve, model ZCF-10 (flow range 0.1-5m³ / h), is... 3 / h, control accuracy ±0.5%), the first tee pipe 30 is connected to the second end of the second tee pipe 4 via a flange; the valve has a built-in stainless steel valve core (wear resistant), and the opening can be precisely adjusted through the electrical control system to control the flow of trace elements; the valve body is equipped with an insulation layer (rock wool material) to prevent material from caking in low temperature environments.

[0029] The flow sensor model 31 is LWGY-65 (turbine type, measuring range 0.2-10m). 3 / h (accuracy ±0.2%), installed between the discharge end of the electromagnetic metering valve 3 and the second three-way pipe 4 via a flange, to detect the actual flow rate of trace elements in real time, and to feed back the signal to the electrical control system to form a closed-loop flow control to ensure the accuracy of addition.

[0030] The three ports of the second three-way pipe 4 are connected as follows: the first port is connected to the discharge port of the electromagnetic metering valve 3 to receive the metered trace elements; the second port is connected to the first main pipe 6 of the cleaning and recovery section through the first branch pipe 5 to transport residual materials and cleaning liquid during cleaning; the third port is equipped with valve three (manual ball valve, model Q11F-16), which is opened during normal addition to transport trace elements to the bio-organic fertilizer mixing host (not shown); it is closed during cleaning to switch to the recovery channel;

[0031] A second check valve 51 (model H12W-16P, check direction: second three-way pipe 4 → first main pipe 6, to prevent the recovered liquid from flowing back into the addition channel) is installed on the first branch pipe 5.

[0032] The self-cleaning unit includes a multi-media supply module and a media flow module, realizing a three-step cleaning process of "acidic descaling - alkaline degreasing - water rinsing" to thoroughly remove residues from the pipeline.

[0033] The multi-media supply module includes an acidic cleaning solution tank 11, an alkaline cleaning solution tank 13, and a clean water tank 15, all made of 304 stainless steel (0.3m³ / s). 3 The following tanks (with level gauges) are installed side-by-side at the bottom of frame 1: Acidic cleaning solution tank 11 stores 10%-15% hydrochloric acid solution (used to remove alkaline trace element scale, such as calcium carbonate and magnesium hydroxide), and is equipped with a stirrer (model JBJ-100, power 0.12kW, speed 100r / min) to prevent solution stratification; Alkaline cleaning solution tank 13 stores 5%-8% sodium hydroxide solution (used to remove oil and organic residues in pipes), and is also equipped with a stirrer; Clean water tank 15 stores deionized water (used to neutralize residual acid and alkali solutions after cleaning), and is equipped with a filter element (5μm precision, to remove impurities in the water and avoid secondary pollution).

[0034] The media flow module includes a second main pipe 10, a first pump body 12, a second pump body 14, a third pump body 16, and various flow pipes. It is responsible for delivering the cleaning medium to each addition channel. The second main pipe 10 is horizontally installed in the middle of the frame 1 and connects to the third end of each first tee pipe 30 via 3-6 second branch pipes 9 (corresponding to the number of addition channels) to distribute the cleaning medium to each channel. The first pump body 12 is a 50FSB-25 model (fluoroplastic material, acid-resistant, flow rate 1.5m³ / h). 3 The pump body 14 has a flow rate of 10 m / h and a head of 20 m. Its input end is connected to the bottom of the acidic cleaning solution tank 11 via a pipe, and its output end is connected to the second main pipe 10 via the first flow pipe 121 (PVDF material, acid resistant). A fourth check valve (model H12W-16P, check direction: pump body → second main pipe 10, to prevent backflow of cleaning solution) is installed on the first flow pipe 121. The second pump body 14 is the same model as the first pump body 12 (alkali resistant material), its input end is connected to the alkaline cleaning solution tank 13, and its output end is connected to the second main pipe 10 via the second flow pipe 141 (PVDF material, alkali resistant). A fifth check valve (check direction same as the fourth check valve) is installed on the second flow pipe 141. The third pump body 16 is model ISG50-160 (stainless steel material, flow rate 2 m³ / h). 3 / h, head 32m), the input end is connected to the clean water tank 15, and the output end is connected to the second main pipe 10 through the third flow pipe (304 stainless steel); the sixth check valve is installed on the third flow pipe (the check direction is the same as the fourth check valve).

[0035] The cleaning and recovery unit (residue recovery and recycling) includes a first main pipe 6, a circulation pipe 7, a filter box 8, and valves to realize the recovery and treatment of cleaning fluid and residual materials. The first main pipe 6 is horizontally installed at the lower part of the frame 1 and is connected to the second end of each second tee pipe 4 through 3-6 first branch pipes 5 (corresponding to the number of added channels) to collect the cleaning fluid and residual materials of each channel. A valve 61 (electric ball valve, model Q941F-16) is installed at the bottom of the first main pipe 6. It is opened during cleaning to discharge waste cleaning fluid and closed when recovering clean water, switching to circulation pipe 7.

[0036] One end of the circulation pipe 7 is connected to the middle of the first main pipe 6, and the other end extends to the top of the clean water tank 15 to realize the recycling of clean water after cleaning; a third one-way valve 71 (electric check valve, model H44W-16P, check direction: first main pipe 6 → clean water tank 15, controlled by the electric control system) is installed on the pipe.

[0037] The filter box 8 is connected in series in the middle of the circulation pipe 7. The filter core layer 81 and the activated carbon adsorption layer 82 are installed in sequence from the water inlet to the water outlet. The filter core layer 81 is a polypropylene pleated filter (10μm precision) to filter residual material particles (such as undissolved trace element powder) in the cleaning liquid.

[0038] The activated carbon adsorption layer 82 uses columnar activated carbon (particle size 5mm, iodine value ≥1000mg / g) to adsorb pigments, odors and residual acid and alkali ions in the cleaning solution; the top of the filter box 8 is equipped with a detachable end cap for easy periodic replacement of the filter element and activated carbon (replacement cycle 1 month).

[0039] The electrical control system includes a PLC controller, a touch screen, a relay module, and a power supply module, realizing fully automatic control of adding and cleaning. The PLC controller is a Siemens S7-200 SMART (CPU ST30), installed in the electrical control cabinet on one side of the rack 1; it is electrically connected to the flow sensor 31, the solenoid metering valve 3, the first pump body 12, the second pump body 14, the third pump body 16, the first check valve 301, the second check valve 51, the third check valve 71, the fourth check valve, the fifth check valve, the sixth check valve, valve 61, and the level gauge, receiving sensor signals and outputting control commands.

[0040] The touchscreen model KTP700 Basic is embedded in the electrical control cabinet panel; it allows setting the target addition flow rate for various trace elements (0.1-5m³). 3 The system displays the following parameters: cleaning cycle (e.g., automatic cleaning once every 8 hours), cleaning time (5 minutes for acidic cleaning, 5 minutes for alkaline cleaning, and 8 minutes for clean water cleaning), and real-time display of flow rate, pump status, liquid level information, and fault alarms (e.g., pump overload, sensor failure).

[0041] During normal addition, the electromagnetic metering valve 3 adjusts its opening according to the target flow rate, and the flow sensor 31 provides real-time feedback. If the deviation exceeds 0.5%, it will automatically correct itself. During cleaning, valve 3 is closed and valve 1 61 (or the third one-way valve 71) is opened. The second pump body 14 (alkaline cleaning), the first pump body 12 (acidic cleaning), and the third pump body 16 (clean water cleaning) are started in sequence. The cleaning solution flows through the second main pipe 10 → the second branch pipe 9 → the first tee pipe 30 → the electromagnetic metering valve 3 → the second tee pipe 4 → the first branch pipe 5 → the first main pipe 6 → the filter box 8 → the clean water tank 15 (or discharge) to complete the cleaning of the entire channel.

[0042] In this application, borax (target flow rate 0.5m³) is added during the accuracy testing. 3 / h), the flow sensor 31 reports the actual flow fluctuation range as 0.498-0.502m. 3 / h, error ±0.4%, meeting the ±0.5% requirement; after 8 hours of continuous operation, cleaning is started, and the residual amount on the inner wall of the pipe after cleaning is ≤0.1g / m, with no obvious caking; recycling test: after cleaning with clean water and treatment by filter box 8, the turbidity of the water quality drops from 20NTU to below 5NTU, and it can be reused for cleaning, with a water resource saving rate of 42%.

[0043] Workflow

[0044] (1) Normal Addition Process

[0045] 1. Parameter settings: Set the target addition flow rate for each trace element via the touchscreen (e.g., zinc: 0.3m). 3 / h, Boron: 0.5m 3 / h), open valve two and valve three, and close valve one 61 and the third check valve 71;

[0046] 2. Start-up and addition: The PLC controller starts the solenoid metering valve 3 and adjusts the opening according to the target flow rate; the flow sensor 31 detects the actual flow rate in real time. If the deviation exceeds 0.5% (e.g., target 0.5m), the valve will be checked. 3 / h, actual 0.503m 3 / h), the PLC automatically reduces the valve opening until the flow rate stabilizes;

[0047] 3. Continuous monitoring: The touch screen displays the flow rate of each channel and the liquid level of the storage tank in real time. When the liquid level is low, an alarm is triggered to prompt for replenishment. After the addition is completed, the electromagnetic metering valve 3 and valves 2 and 3 are closed.

[0048] (2) Self-cleaning process

[0049] 1. Cleaning preparation: Close valve three, open valve one 61 (waste cleaning fluid discharge) or the third check valve 71 (clean water recovery), and ensure that all check valves are in normal condition;

[0050] 2. Alkaline cleaning: Start the second pump body 14, open the fifth check valve, and the alkaline cleaning solution flows through the second flow pipe 141 → the second main pipe 10 → the second branch pipe 9 → the first tee pipe 30 → the electromagnetic metering valve 3 → the second tee pipe 4 → the first branch pipe 5 → the first main pipe 6 → discharge (or circulate), clean for 5 minutes to remove oil and organic residues.

[0051] 3. Acidic cleaning: Close the second pump body 14 and the fifth check valve, start the first pump body 12, open the fourth check valve, and clean with acidic cleaning solution for 5 minutes according to the above path to remove alkaline scale.

[0052] 4. Clean water rinsing: Close the first pump body 12 and the fourth check valve, start the third pump body 16, open the sixth check valve, and rinse with clean water for 8 minutes according to the above path to neutralize residual acid and alkali; if the clean water is to be recycled, open the third check valve 71 and close the valve 61. The clean water is then returned to the clean water tank 15 after being treated by the filter box 8.

[0053] 5. Cleaning complete: Close all pumps and check valves, open valve 3 and valve 161 to drain residual water from the pipeline, and the system returns to standby mode.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-channel control device for adding trace elements to bio-organic fertilizer, characterized in that, The device includes a frame (1) and multiple sets of adding channels. The adding channels include a trace element storage tank (2) and an electromagnetic metering valve (3) installed on the frame (1). A first three-way pipe (30) is provided between the trace element storage tank (2) and the electromagnetic metering valve (3). The first end of the first three-way pipe (30) is connected to the outlet of the trace element storage tank (2), and the second end of the first three-way pipe (30) is connected to the inlet of the electromagnetic metering valve (3). The outlet of the electromagnetic metering valve (3) is connected to the first end of the second three-way pipe (4). It also includes a self-cleaning unit, which includes a multi-media supply module and a media flow module. The multi-media supply module includes an acidic cleaning liquid tank (11), an alkaline cleaning liquid tank (13), and a clean water tank (15). The media flow module is used to flow the media inside the acidic cleaning liquid tank (11), the alkaline cleaning liquid tank (13), and the clean water tank (15) into the first three-way pipe (30).

2. The multi-channel control device for adding trace elements to bio-organic fertilizer according to claim 1, characterized in that: The medium flow module includes a second main pipe (10), a first pump body (12), a second pump body (14) and a third pump body (16). The third end of the first three-way pipe (30) is connected to the second main pipe (10) through a second branch pipe (9). A first one-way valve (301) is installed on the third end of the first three-way pipe (30). The input end of the first pump body (12) is connected to the inside of the acidic cleaning solution tank (11) through a pipe. The output end of the first pump body (12) is connected to the second main pipe (10) through the first flow pipe (121). The input end of the second pump body (14) is connected to the inside of the alkaline cleaning solution tank (13) through a pipe. The output end of the second pump body (14) is connected to the second main pipe (10) through the second flow pipe (141). The input end of the third pump body (16) is connected to the inside of the clean water tank (15) through a pipe. The output end of the third pump body (16) is connected to the second main pipe (10) through the third flow pipe (161).

3. The multi-channel control device for adding trace elements to bio-organic fertilizer according to claim 2, characterized in that: A fourth check valve is installed on the first flow pipe (121), a fifth check valve is installed on the second flow pipe (141), and a sixth check valve is installed on the third flow pipe (161).

4. The multi-channel control device for bio-organic fertilizer trace element addition according to claim 3, characterized in that: It also includes a cleaning and recycling section, which includes a first main pipe (6) and a circulation pipe (7). The second end of the second three-way pipe (4) is connected to a first branch pipe (5). A second one-way valve (51) is installed on the first branch pipe (5). The end of the first branch pipe (5) away from the second three-way pipe (4) is connected to the first main pipe (6). One end of the circulation pipe (7) is connected to the first main pipe (6). The other end of the circulation pipe (7) is connected to the inside of the clean water tank (15). A third one-way valve (71) is installed on the circulation pipe (7). A valve one (61) is installed at the bottom of the first main pipe (6). A valve two is installed at the first end of the first three-way pipe (30). A valve three is installed at the third end of the second three-way pipe (4).

5. The multi-channel control device for bio-organic fertilizer trace element addition according to claim 4, characterized in that: A filter box (8) is installed on the circulation pipe (7), and a filter core layer (81) and an activated carbon adsorption layer (82) are installed inside the filter box (8).

6. The multi-channel control device for bio-organic fertilizer trace element addition according to claim 5, characterized in that: It also includes a controller. The discharge end of the electromagnetic metering valve (3) is equipped with a flow sensor (31). The flow sensor (31), the first pump body (12), the second pump body (14), the third pump body (16), the first check valve (301), the second check valve (51), the third check valve (71), the fourth check valve, the fourth check valve and the sixth check valve are all electrically connected to the controller.

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