Production device of earthworm enzyme liquid fertilizer

Abstract

The utility model belongs to the technical field of fertilizers, and discloses a production device of an earthworm enzyme bacteria liquid fertilizer, which comprises an enzymolysis tank, a bacteria solution tank, a tubular high-speed centrifuge, a reactor, a first storage tank, a filter membrane component, a second storage tank and a filling machine which are sequentially connected together through a pipeline, the tank body assembly of the reactor is also communicated with a dissolving tank, an enzymolysis tank, a bacterial degradation tank and a tubular high-speed centrifuge, and pipelines among the reactor, the first storage tank, the filter membrane assembly, the second storage tank and the filling machine are all communicated with delivery pumps; the production device is simple in overall structure and capable of automatically and efficiently producing the earthworm enzyme bacterium liquid fertilizer which is high in absorption rate, balanced in nutrition, easy to apply, capable of saving cost and capable of improving soil fertility.

Description

Technical Field

[0001] The utility model belongs to the technical field of fertilizers, and in particular relates to a production device for earthworm enzyme liquid fertilizer. Background Art

[0002] In modern agricultural production, the soil has been subjected to long-term high-intensity farming, the extensive use of chemical fertilizers and pesticides, and the organic matter content in the soil has been seriously reduced. Various beneficial elements are scarce, and some indicator organisms beneficial to the soil (such as earthworms) are also difficult to find. As a result, the total area of ​​saline-alkali land in my country is about 1.5 billion mu, and there are 2×10 6 Tons of fertilizer were produced, 19.4% of the soil heavy metal points exceeded the standard, the average detection rate of antibiotics in the 0-20cm surface soil was as high as 58%, and the straw returned to the fields could not be fully decomposed.

[0003] Therefore, the selection and use of fertilizers are directly related to the growth and yield of crops, and they also need to have a beneficial effect on the soil. With the continuous advancement of agricultural technology, organic fertilizers have gradually gained attention due to their friendliness to the soil and the environment.

[0004] Earthworms, also known as earthworms, contain lumbrokinase, plasminogen activator, fibrinolytic enzymes, cellulase, cholinesterase, catalase, superoxide dismutase, BD glucuronidase, alkaline phosphatase, esterase, porphyrin synthase, serine endoproteinase, and earthworm phospholipid kinase. They also contain protein and amino acids, including eight essential amino acids, with free amino acids accounting for approximately 8%. Earthworms contain not only nitrogen, phosphorus, and potassium, but also trace elements such as calcium, magnesium, copper, selenium, strontium, molybdenum, nickel, cobalt, iron, potassium, chromium, manganese, lead, cadmium, and zinc.

[0005] Earthworm enzymes are proteins that accelerate soil biochemical reactions. They participate in numerous reactions related to material cycling and energy flow in soil biochemistry. They not only executor organic matter transformation in the soil but also serve as an active reservoir of plant nutrients. Their activity reflects the level of microbial activity in the soil and the soil's ability to transform and transport nutrients, effectively reflecting the overall soil fertility.

[0006] A Chinese patent with application number CN202211102774.6 discloses a method for preparing earthworm lumbrokinase bio-organic fertilizer, which relates to the technical field of agricultural fertilizers. The present invention comprises the following steps: Step 1: After cutting the crop straw, add a straw composting agent in an amount of 5 to 20 g / m2, and add earthworms in an amount of 15 to 30 earthworms per gram of crop straw; Step 2: Add biochar in an amount of 10 to 50 g / kg, mix evenly, and compost for 30 to 60 days; Step 3: Turn the compost when it has been composted for 30 to 60 days. The present invention processes the living earthworms and adds them to the vermicompost fertilizer. It uses the proteolytic enzyme (lumbrokinase) in the earthworm body to activate the activity of various enzymes in the plant body, induce gene expression, resist adversity, balance the endogenous physiological metabolism of the plant body, promote the absorption and operation of mineral elements, improve the quality of agricultural products, increase the yield of agricultural products, activate soil microorganisms, and improve the farmland environment. It is a strong guarantee for the production of green organic agricultural products.

[0007] However, this patent belongs to solid organic fertilizer, which can only be used as base fertilizer and has low fertilizer efficiency. How to use certain equipment and technology to produce high-quality earthworm enzyme liquid fertilizer from artificially raised earthworms, directly apply it to plant leaves or irrigate with water, so as to increase the organic matter, fertilizer and microbial biomass of the soil in a cascade manner, improve soil fertility, and produce green agricultural products, is a new technology that our farmers need to develop. Utility Model Content

[0008] The main technical problem to be solved by the utility model is to provide a production device with a simple overall structure, which can automatically and efficiently produce earthworm enzyme liquid fertilizer with high absorption rate, balanced nutrition, easy application, cost saving and improved soil fertility.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0010] A production device for earthworm enzyme liquid fertilizer comprises an enzymolysis tank, a bacterial hydrolysis tank, a tubular high-speed centrifuge, a reactor, a first storage tank, a filter membrane assembly, a second storage tank, and a filling machine, which are sequentially connected through pipelines. The enzymolysis tank and the reactor each comprise a tank assembly, the tank assembly of the reactor is further connected to a dissolution tank, and pipelines between the enzymolysis tank, the bacterial hydrolysis tank, the tubular high-speed centrifuge, the reactor, the first storage tank, the filter membrane assembly, the second storage tank, and the filling machine are all connected to a delivery pump.

[0011] The filter membrane assembly includes a water inlet pipe connected to the output end of the first storage tank, a circulating pump is connected to the water inlet pipe near the first storage tank, and multiple filter membrane elements are connected to the water inlet pipe near the circulating pump.

[0012] The other ends of the multiple filter membrane elements are all connected to the same concentrated water outlet pipe. A pressure gauge is provided on the concentrated water outlet pipe at a position corresponding to the filter membrane element. A one-way valve is connected to the concentrated water outlet pipe near the filter membrane element. The output end of the concentrated water outlet pipe is connected to the first storage tank.

[0013] The upper end of the multiple filter membrane elements is connected to an upper clear water outlet pipe, and the lower end of the multiple filter membrane elements is connected to a lower clear water outlet pipe. The output ends of the upper clear water outlet pipe and the lower clear water outlet pipe are simultaneously connected to the second storage tank.

[0014] The following is a further optimization of the above technical solution by the present invention:

[0015] The tank assembly includes a bracket placed on the ground, on which the tank is fixedly mounted;

[0016] A feed port is connected at the edge of the top of the tank body, a motor is fixedly installed at the middle position of the top of the tank body, and the power output end of the motor passes through the inner wall of the top of the tank body and is fixedly connected to the agitator.

[0017] Further optimization: a controller is fixedly installed on the outer wall of the tank, and a platinum resistance thermometer for detecting temperature is fixedly installed on the inner wall of the tank;

[0018] The control end of the motor is electrically connected to the controller through a wire, and the signal output end of the platinum resistance thermometer is electrically connected to the controller through a wire;

[0019] At least two electric heating tubes are fixedly installed on the outer wall of the bottom end of the tank body, and the control ends of the two electric heating tubes are electrically connected to the controller through wires.

[0020] Further optimization: the bacterial hydrolysis tank includes a bacterial hydrolysis tank bracket placed on the ground, and the bacterial hydrolysis tank body is fixedly installed on the bacterial hydrolysis tank bracket;

[0021] A sealing groove is fixedly installed on the outer wall of the bacterial hydrolysis tank near the opening, a top cover is buckled in the sealing groove, and the top cover is connected to two symmetrically arranged air release valves;

[0022] A plurality of reinforcing ribs are evenly distributed on the outer wall of the bacterial hydrolysis tank from top to bottom.

[0023] Further optimization: the filtration membrane element includes a branch water inlet pipe connected to the water inlet pipe, a water inlet valve is connected in series on the branch water inlet pipe, and the output end of the branch water inlet pipe is connected to the membrane element.

[0024] Further optimization: the membrane element is made of tubular fiber microfiltration membrane.

[0025] Further optimization: the output end of the membrane element is connected to a concentrated water outlet pipe, a concentrated water valve is connected in series to the concentrated water outlet pipe, and the other end of the concentrated water outlet pipe is connected to the concentrated water outlet pipe.

[0026] Further optimization: the outer surface of the membrane element is connected to an upper clean water branch pipe near the upper end, and the outer surface of the membrane element is connected to a lower clean water branch pipe near the lower end.

[0027] Further optimization: the upper clean water branch pipe is connected to the same upper clean water outlet pipe, the lower clean water branch pipe is connected to the same lower clean water outlet pipe, and clean water valves are connected in series near the output end of the upper clean water outlet pipe and the lower clean water outlet pipe.

[0028] The utility model adopts the above technical solution, which is ingenious in conception and reasonable in structure. During the enzymolysis, no water is added to the enzymolysis tank, and the pulped earthworm slurry is directly added. The material temperature is controlled at 40-50°C, and stirring is performed intermittently. The water and enzymes of the earthworm itself are used for enzymolysis, and the earthworm slurry is converted into an earthworm enzymolysis liquid that has lost its viscosity. The enzymolysis time is 3 hours, and the speed is fast.

[0029] The anaerobic fermentation tank is designed for fermentation. EM bacteria are added to the enzymatic hydrolysate in the tank for fermentation. The gas produced by the fermentation is automatically discharged through the vent valve above the top cover. If the vent valve malfunctions, such as being clogged, the gas can slowly lift the top cover, leaving the water seal in the sealing groove, discharging the gas, and then slowly descending, resealing the tank. The anaerobic fermentation tank can make the decomposition of the enzymatic hydrolysate more thorough, delicate, and comprehensive. At the same time, it also develops and expands the bacterial community, ensuring the number of microorganisms in the final earth dragon enzyme fertilizer, making the enzyme fertilizer more versatile and adaptable.

[0030] The separated liquid from the tubular high-speed centrifuge is further filtered through a filter membrane to remove impurities larger than 6μm, which will not clog the nozzle during application and ensure the uniformity and effectiveness of spraying and watering.

[0031] Water inlet valves and water outlet valves are installed on the upper and lower branches of the membrane element respectively, which can easily and quickly find the leaking membrane element and replace it in time.

[0032] Finally, the earthworm enzyme liquid fertilizer produced by this device contains various earthworm enzymes and beneficial microorganisms, and can be used as foliar fertilizer or water-irrigated fertilizer. The enzymes and microorganisms therein can directly act on plants through the leaves or roots, and the effect is obvious; the microorganisms that fall into the soil can multiply in the soil, increase the amount of microorganisms in the soil, and accelerate the decomposition of humus in the soil. The enzymes that fall into the soil can participate in the physical and chemical reactions of the soil, improve soil fertility, and promote the tillering growth of crops.

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0035] Figure 2 It is a schematic structural diagram of the membrane element in the embodiment of the present utility model.

[0036] In the figure: 1. Enzymatic hydrolysis tank; 11. Tank assembly; 110. Bracket; 111. Tank body; 112. Electric heating tube; 113. Feed inlet; 114. Platinum resistance thermometer; 115. Motor; 116. Agitator; 117. Discharge port; 118. Controller; 12. Delivery pump; 2. Bacterial hydrolysis tank; 21. Bacterial hydrolysis tank bracket; 22. Bacterial hydrolysis tank body; 23. Reinforcement rib; 24. Sealing groove; 25. Top cover; 26. Air release valve; 27. Liquid inlet; 28. Liquid outlet; 3. Tubular high-speed centrifuge Machine; 4. Reactor; 41. Dissolution tank; 5. First storage tank; 6. Filtration membrane assembly; 61. Circulation pump; 62. Water inlet pipe; 63. Branch water inlet pipe; 64. Water inlet valve; 65. Membrane element; 652. Upper clean water branch pipe; 653. Lower clean water branch pipe; 66. Upper clean water outlet pipe; 67. Lower clean water outlet pipe; 68. Clean water valve; 69. Brine branch pipe; 690. Brine outlet pipe; 691. Pressure gauge; 692. One-way valve; 693. Brine valve; 7. Second storage tank; 8. Filling machine. DETAILED DESCRIPTION

[0037] like Figure 1-2 As shown: A production device for earthworm enzyme liquid fertilizer, comprising an enzymolysis tank 1, a bacterial hydrolysis tank 2, a tubular high-speed centrifuge 3, a reactor 4, a first storage tank 5, a filter membrane assembly 6, a second storage tank 7 and a filling machine 8 connected together in sequence through pipelines, wherein the enzymolysis tank 1 and the reactor 4 each include a tank assembly 11, the tank assembly 11 of the reactor 4 is further connected to a dissolution tank 41, and pipelines between the enzymolysis tank 1, the bacterial hydrolysis tank 2, the tubular high-speed centrifuge 3, the reactor 4, the first storage tank 5, the filter membrane assembly 6, the second storage tank 7 and the filling machine 8 are all connected to a delivery pump 12;

[0038] The filter membrane assembly 6 includes a water inlet pipe 62 connected to the output end of the first storage tank 5, a circulating pump 61 is connected to the water inlet pipe 62 near the first storage tank 5, and multiple filter membrane elements are connected to the water inlet pipe 62 near the circulating pump 61;

[0039] The other ends of the multiple filter membrane elements are all connected to the same concentrated water outlet pipe 690. A pressure gauge 691 is provided on the concentrated water outlet pipe 690 at a position corresponding to the filter membrane element. A one-way valve 692 is connected to the concentrated water outlet pipe 690 near the filter membrane element. The output end of the concentrated water outlet pipe 690 is connected to the first storage tank 5.

[0040] The upper end of the multiple filter membrane elements is connected to an upper clean water outlet pipe 66, and the lower end of the multiple filter membrane elements is connected to a lower clean water outlet pipe 67. The output ends of the upper clean water outlet pipe 66 and the lower clean water outlet pipe 67 are simultaneously connected to the second storage tank 7.

[0041] The tank assembly 11 includes a bracket 110 placed on the ground, and a tank 111 is fixedly mounted on the bracket 110 .

[0042] In this embodiment, the tank body 111 is a stainless steel interlayer tank, the interlayer in the tank body 111 is filled with heat transfer liquid, and the earthworm slurry is placed inside the tank body 111 for enzymatic hydrolysis.

[0043] The top edge of the tank body 111 is connected to a feed port 113 , and a motor 115 is fixedly installed at the middle position of the top of the tank body 111 .

[0044] The power output end of the motor 115 passes through the inner wall of the top end of the tank body 111 and is fixedly connected to the stirrer 116 .

[0045] A controller 118 is fixedly mounted on the outer wall of the tank body 111 .

[0046] A platinum resistance thermometer 114 for detecting temperature is fixedly mounted on the inner wall of the tank 111 .

[0047] The control end of the motor 115 is electrically connected to the controller 118 via a wire, and the signal output end of the platinum resistance thermometer 114 is electrically connected to the controller 118 via a wire.

[0048] At least two electric heating tubes 112 are fixedly mounted on the outer wall of the bottom end of the tank body 111 , and the control ends of the two electric heating tubes 112 are electrically connected to the controller 118 via wires.

[0049] In this embodiment, the platinum resistance thermometer 114 and the electric heating tube 112 can be directly purchased from the market.

[0050] The platinum resistance thermometer 114 can detect the temperature inside the tank body 111 ; the electric heating tube 112 can heat the heat-conducting liquid in the interlayer of the tank body 111 , thereby transferring the heat to the tank body 111 .

[0051] The earthworm slurry is pulped by a pulping machine. The pulping process and principle are well known in the prior art and will not be described in detail here.

[0052] The feed port 113 is connected to the output end of the refiner through a pipeline, and a mortar pump is also connected to the pipeline between the feed port 113 and the refiner.

[0053] That is, the slurried earthworm slurry in the pulper enters the feed port 113 through the mortar pump, and then enters the tank body 111, and then the controller 118 controls the start-up of the electric heating tube 112 and the motor 115.

[0054] The electric heating tube 112 heats the heat transfer liquid, and then heats the earthworm slurry in the tank body 111. At the same time, the power output end of the motor 115 drives the stirrer 116 to rotate and stir the earthworm slurry.

[0055] A discharge port 117 is provided at the lower portion of the tank body 111 , and the discharge port 117 is connected to the bacterial hydrolysis tank 2 through a pipeline.

[0056] The feed port 113 is also connected to an EM bacterial liquid storage device. The EM bacterial liquid is a mixed bacteria composed of multiple organisms commonly used in the art and is used for bacterial hydrolysis reaction. The principle of bacterial hydrolysis is well known in the prior art and will not be repeated here.

[0057] In the present embodiment, the stirring interval of the agitator 116 is set to 10 minutes, and the speed of the motor 115 is set to 50r / min; when the electric heating tube 112 continues to heat until the temperature in the tank body 111 detected by the platinum resistance thermometer 114 reaches 50°C, the signal is fed back to the controller 118, and the controller 118 controls the electric heating tube 112 to continue heating; when the temperature in the tank body 111 detected by the platinum resistance thermometer 114 is lower than 40°C, the signal is fed back to the controller 118, and the controller 118 controls the electric heating tube 112 to continue heating, and the earthworm slurry is converted into an enzymatic hydrolyzate;

[0058] The above process lasts for 3 hours. After 3 hours, the enzymatic hydrolyzate loses its viscosity and the controller 118 controls the electric heating tube 112 to stop.

[0059] When the temperature of the enzymatic hydrolysis solution drops to 37°C, the output of the EM bacterial liquid storage device is turned on, and the EM bacterial liquid enters the tank body 111 through the feed port 113 to be mixed with the enzymatic hydrolysis solution. During this period, the controller 118 controls the starting motor 115 to drive the stirrer 116 to stir the mixture of the EM bacterial liquid and the enzymatic hydrolysis solution to ensure that the mixture is fully mixed. Then, the transfer pump 12 between the enzymatic hydrolysis tank 1 and the bacterial hydrolysis tank 2 is turned on to transfer the mixed solution to the bacterial hydrolysis tank 2 for bacterial hydrolysis.

[0060] The discharge port 117 is further connected to a first control valve below. When the enzymatic hydrolysis is completed and the interior of the tank 111 is cleaned, the waste water after cleaning flows out through the first control valve for treatment, which is easy to operate.

[0061] The bacterial hydrolysis tank 2 includes a bacterial hydrolysis tank bracket 21 placed on the ground, and a bacterial hydrolysis tank body 22 is fixedly mounted on the bacterial hydrolysis tank bracket 21 .

[0062] In this embodiment, the bacterial decomposition tank body 22 is an anaerobic degradation tank formed by welding food-grade polypropylene plates, which is a common anaerobic degradation tank structure in the technical field.

[0063] The top of the bacterial hydrolysis tank 22 is provided with an opening, and a sealing groove 24 is fixedly installed at the opening.

[0064] A top cover 25 is buckled into the sealing groove 24. In this embodiment, a water-sealed method is adopted between the top cover 25 and the sealing groove 24, that is, the sealing groove 24 is filled with liquid water. When the top cover 25 is buckled into the sealing groove 24, the top cover 25 is sealed to prevent external air from entering the interior of the bacterial hydrolysis tank 22.

[0065] The top cover 25 is connected to two symmetrically arranged air release valves 26. The two air release valves 26 can be purchased directly from the market. When gas is generated during the bacterial hydrolysis process in the bacterial hydrolysis tank 22, the pressure in the bacterial hydrolysis tank 22 increases. When the pressure in the bacterial hydrolysis tank 22 is higher than the external pressure, the gas can be discharged through the air release valves 26. The air release valves 26 also prevent external air from entering the interior of the bacterial hydrolysis tank 22. The working principle of the air release valves 26 is well known in the prior art and will not be repeated here.

[0066] When the air release valve 26 fails during the bacterial hydrolysis period, the gas generated in the bacterial hydrolysis tank body 22 will lift the top cover 25. When the edge of the top cover 25 is separated from the liquid water in the sealing groove 24, the gas is discharged from the opening, and the top cover 25 falls down by its own gravity. This also completes the exhaust and protects the bacterial hydrolysis tank body 22 from damage.

[0067] A plurality of reinforcing ribs 23 are evenly distributed on the outer wall of the bacterial hydrolysis tank body 22 from top to bottom. In this embodiment, the number of the reinforcing ribs 23 is set to three. This design can enhance the overall strength of the bacterial hydrolysis tank body 22.

[0068] A liquid inlet 27 is provided on the enzymatic hydrolysis tank body 22 below the sealing groove 24. The liquid inlet 27 is connected to the discharge port 117 of the enzymatic hydrolysis tank 1 through a pipeline. In this design, the mixed liquid of the EM bacterial liquid and the enzymatic hydrolysis liquid in the tank body 111 enters the interior of the enzymatic hydrolysis tank body 22 through the liquid inlet 27 under the action of the delivery pump 12 for the enzymatic hydrolysis reaction.

[0069] When the exhaust in the bacterial hydrolysis tank 22 stops, the bacterial hydrolysis and fermentation is completed. At this time, the mixture of the enzymatic hydrolysis liquid and the EM bacterial liquid is converted into the bacterial hydrolysis liquid.

[0070] A liquid outlet 28 is provided at the lower end of the bacterial hydrolysis tank 22 , and one end of the pipeline between the bacterial hydrolysis tank 2 and the tubular high-speed centrifuge 3 is connected to the liquid outlet 28 . In this way, the bacterial hydrolysis liquid enters the tubular high-speed centrifuge 3 through the liquid outlet 28 under the action of the delivery pump 12 .

[0071] The lower end of the liquid outlet 28 is also connected to a second control valve. When the bacterial hydrolysis tank 2 completes the bacterial hydrolysis and needs to be cleaned, the cleaned sewage is discharged through the second control valve for treatment, which is easy to operate.

[0072] In this embodiment, the tubular high-speed centrifuge 3 is a commonly available commercial model. The bacterial hydrolyzate enters the tubular high-speed centrifuge 3 for solid-liquid separation, and the liquid separated under the action of the rotational force of the tubular high-speed centrifuge 3 enters the reactor 4.

[0073] The working principle of the tubular high-speed centrifuge 3 is well known in the prior art and will not be described in detail here.

[0074] The solid separated in the tubular high-speed centrifuge 3 can be collected and sent to a composting plant for production of organic solid fertilizer, thereby improving utilization rate.

[0075] In this embodiment, the dissolution tank 41 adopts a commercially available common reaction tank. The dissolution tank 41 dissolves the required trace elements or medium elements into corresponding solutions, such as copper sulfate, zinc sulfate and the like. The outlet of the dissolution tank 41 is connected to the feed port 113 of the reactor 4. In this design, when the solution output from the tubular high-speed centrifuge 3 enters the reactor 4, it undergoes a chelating reaction with the liquid sent from the tubular high-speed centrifuge 3. During the reaction, the temperature required for the reaction is provided by the electric heating tube 112, and the stirring frequency and reaction time of the stirrer 116 are controlled by the controller 118.

[0076] In this embodiment, the reaction temperature of the reactor 4 is set to 30° C., the rotation speed of the stirrer 116 is 50 r / min, and the reaction time is set to 40 min.

[0077] The solution after the reaction is completed enters the first storage tank 5 through the delivery pump 12 between the reactor 4 and the first storage tank 5 for standby use.

[0078] At the same time, the sewage after cleaning the reactor 4 is output through the first control valve for processing, which is easy to operate.

[0079] The first storage tank 5 is a commonly used storage tank on the market, and its specific structure is not described here in detail.

[0080] The outlet end of the first storage tank 5 is also connected to a third control valve, and the sewage cleaned by the first storage tank 5 is output through the third control valve for processing.

[0081] The filter membrane element includes a branch water inlet pipe 63 connected to the water inlet pipe 62 , and a water inlet valve 64 is connected in series to the branch water inlet pipe 63 .

[0082] The output end of the branch water inlet pipe 63 is connected to a membrane element 65 .

[0083] In this embodiment, the membrane element 65 is made of a tubular fiber microfiltration membrane, the pore size of the tubular fiber microfiltration membrane is selected to be 6 μm, and the membrane element 65 can be obtained commercially.

[0084] The output end of the membrane element 65 is connected to a concentrated water outlet pipe 690 , and a concentrated water valve 693 is connected in series to the concentrated water outlet pipe 690 .

[0085] The other end of the concentrated water outlet pipe 690 is connected to the concentrated water outlet pipe 690 .

[0086] An upper clean water branch pipe 652 is connected to the outer surface of the membrane element 65 near the upper end, and a lower clean water branch pipe 653 is connected to the outer surface of the membrane element 65 near the lower end.

[0087] All upper clean water branch pipes 652 are connected to the same upper clean water outlet pipe 66 , and the lower clean water branch pipes 653 are connected to the same lower clean water outlet pipe 67 .

[0088] Clean water valves 68 are connected in series near the output ends of the upper clean water outlet pipe 66 and the lower clean water outlet pipe 67 .

[0089] During use, under the delivery pressure of the circulation pump 61, the separated liquid in the first storage tank 5 enters the water inlet pipe 62. At this time, the water inlet valve 64 is opened, and the separated liquid enters the membrane element 65 through the branch water inlet pipe 63 in sequence, which can separate the separated liquid into a clear liquid and a concentrated liquid. The clear liquid is sequentially output from the upper clear water branch pipe 652 and the lower clear water branch pipe 653 or the lower clear water branch pipe 653 to the upper clear water outlet pipe 66 and the lower clear water outlet pipe 67, and finally enters the second storage tank 7.

[0090] The concentrated liquid enters the concentrated liquid outlet pipe 690 through the concentrated liquid branch pipe 69 and the concentrated liquid valve 693, and then enters the first storage tank 5 under the action of the one-way valve 692 to continue circulation and separation. The function of the one-way valve 692 ensures that the concentrated liquid is output to the first storage tank 5.

[0091] In this embodiment, the upper clean water outlet pipe 66 , the lower clean water outlet pipe 67 , and the clean water valve 68 facilitate backwashing of the membrane element 65 after the filtration membrane assembly 6 is used.

[0092] The pressure gauge 691 is used to detect the pressure in the concentrated water outlet pipe 690. During the operation of the filter membrane assembly 6, the pressure in the concentrated water outlet pipe 690 will gradually increase. When the pressure value of the pressure gauge 691 reaches 0.5 MPa, the circulation pump 61 stops running and the separation is completed.

[0093] The concentrated liquid in the first storage tank 5 is discharged through the third control valve and can also be sent to a composting plant for producing organic solid fertilizer, which is environmentally friendly.

[0094] When the clear liquid output from the upper clear water outlet pipe 66 or the lower clear water outlet pipe 67 becomes turbid, it indicates that the membrane element 65 is leaking. When searching for the leaking membrane element 65, the water inlet valve 64 and the concentrated water valve 693 corresponding to one membrane element 65 can be opened in sequence, and the other water inlet valves 64 and concentrated water valves 693 can be closed. The state of the clear liquid separated by each membrane element 65 can be observed in sequence, so that the leaking membrane element 65 can be quickly identified, facilitating maintenance.

[0095] The second storage tank 7 is a commonly used storage tank on the market, and its specific structure is not described here in detail.

[0096] The outlet end of the second storage tank 7 is also connected to a fourth control valve, and the sewage cleaned by the second storage tank 7 is output through the fourth control valve for processing.

[0097] The separated clear liquid entering the second storage tank 7 enters the filling machine 8 for filling under the action of the delivery pump 12 between the second storage tank 7 and the filling machine 8 .

[0098] The filling machine 8 is a commercially available automatic filling and capping machine made of stainless steel, and includes a filling head, a conveyor belt, a human-computer interface, and a capping machine. During filling, the parameters of the human-machine switch, such as volume, operating program, etc., are designed, and then the machine is turned on. The conveyor belt will position the packaging container, a 5L plastic barrel is used in this embodiment and sent to the bottom of the filling head of the filling machine 8. The filling head automatically descends and starts filling. When the filling reaches the preset volume, the filling head automatically stops filling and automatically rises, and the conveyor belt starts working, accurately sending the plastic barrel to the bottom of the capping machine head. The conveyor belt stops running, and the capping machine automatically covers the lid. Then the plastic barrel is manually removed, labeled, packed, and put into storage.

[0099] For ordinary technicians in this field, based on the teachings of this utility model, without departing from the principles and spirit of this utility model, changes, modifications, replacements and deformations made to the implementation methods are still within the scope of protection of this utility model.

Claims

1. A production device for earthworm enzyme liquid fertilizer, comprising an enzymatic hydrolysis tank (1), a bacterial hydrolysis tank (2), a tubular high-speed centrifuge (3), a reactor (4), a first storage tank (5), a filter membrane assembly (6), a second storage tank (7), and a filling machine (8) connected together in sequence through pipelines, characterized in that: The enzymatic hydrolysis tank (1) and the reactor (4) both include a tank assembly (11), the tank assembly (11) of the reactor (4) is further connected to a dissolution tank (41), and pipelines between the enzymatic hydrolysis tank (1), the bacterial hydrolysis tank (2), the tubular high-speed centrifuge (3), the reactor (4), the first storage tank (5), the filter membrane assembly (6), the second storage tank (7), and the filling machine (8) are all connected to a delivery pump (12); The filter membrane assembly (6) comprises a water inlet pipe (62) connected to the output end of the first storage tank (5); a circulating pump (61) is connected to the water inlet pipe (62) near the first storage tank (5); and a plurality of filter membrane elements are connected to the water inlet pipe (62) near the circulating pump (61); The other ends of the multiple filter membrane elements are all connected to the same concentrated water outlet pipe (690), a pressure gauge (691) is provided on the concentrated water outlet pipe (690) at a position corresponding to the filter membrane element, a one-way valve (692) is connected to the concentrated water outlet pipe (690) near the filter membrane element, and the output end of the concentrated water outlet pipe (690) is connected to the first storage tank (5); The upper end of the plurality of filter membrane elements is connected to an upper clear water outlet pipe (66), and the lower end of the plurality of filter membrane elements is connected to a lower clear water outlet pipe (67). The output ends of the upper clear water outlet pipe (66) and the lower clear water outlet pipe (67) are simultaneously connected to the second storage tank (7).

2. The production device of a kind of earthworm enzyme liquid fertilizer according to claim 1, is characterized in that: The tank assembly (11) comprises a bracket (110) placed on the ground, with the tank (111) fixedly mounted on the bracket (110); The top edge of the tank body (111) is connected to a feed port (113), and a motor (115) is fixedly installed at the middle position of the top of the tank body (111). The power output end of the motor (115) passes through the inner wall of the top of the tank body (111) and is fixedly connected to a stirrer (116).

3. the production device of a kind of earthworm enzyme bacteria liquid fertilizer according to claim 2, is characterized in that: A controller (118) is fixedly mounted on the outer wall of the tank (111), and a platinum resistance thermometer (114) for detecting temperature is fixedly mounted on the inner wall of the tank (111); The control end of the motor (115) is electrically connected to the controller (118) via a wire, and the signal output end of the platinum resistance thermometer (114) is electrically connected to the controller (118) via a wire; At least two electric heating tubes (112) are fixedly mounted on the outer wall of the bottom end of the tank body (111), and the control ends of the two electric heating tubes (112) are electrically connected to the controller (118) via wires.

4. The production device of a kind of earthworm enzyme liquid fertilizer according to claim 3, is characterized in that: The bacterial hydrolysis tank (2) comprises a bacterial hydrolysis tank support (21) placed on the ground, and a bacterial hydrolysis tank body (22) is fixedly mounted on the bacterial hydrolysis tank support (21); A sealing groove (24) is fixedly installed on the outer wall of the bacterial hydrolysis tank (22) near the opening position, and a top cover (25) is buckled in the sealing groove (24). The top cover (25) is connected to two symmetrically arranged air release valves (26); A plurality of reinforcing ribs (23) are evenly distributed from top to bottom on the outer wall of the bacterial hydrolysis tank (22).

5. The production device of a kind of earthworm enzyme liquid fertilizer according to claim 4, is characterized in that: The filtering membrane element comprises a branch water inlet pipe (63) connected to the water inlet pipe (62), a water inlet valve (64) is connected in series to the branch water inlet pipe (63), and the output end of the branch water inlet pipe (63) is connected to the membrane element (65).

6. The production device of a kind of earthworm enzyme liquid fertilizer according to claim 5, is characterized in that: The membrane element (65) is made of a tubular fiber microfiltration membrane.

7. The production device of a kind of earthworm enzyme liquid fertilizer according to claim 6, is characterized in that: The output end of the membrane element (65) is connected to a concentrated water outlet pipe (690), a concentrated water valve (693) is connected in series to the concentrated water outlet pipe (690), and the other end of the concentrated water outlet pipe (690) is connected to the concentrated water outlet pipe (690).

8. The production device of a kind of earthworm enzyme liquid fertilizer according to claim 7, is characterized in that: The outer surface of the membrane element (65) is connected to an upper clean water branch pipe (652) near the upper end, and the outer surface of the membrane element (65) is connected to a lower clean water branch pipe (653) near the lower end.

9. The production device of a kind of earthworm enzyme liquid fertilizer according to claim 8, is characterized in that: The upper clean water branch pipe (652) is connected to the same upper clean water outlet pipe (66), and the lower clean water branch pipe (653) is connected to the same lower clean water outlet pipe (67). Clean water valves (68) are connected in series near the output ends of the upper clean water outlet pipe (66) and the lower clean water outlet pipe (67).

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