Polyglutamic acid fertilizer mixing preparation device

Abstract

The utility model discloses a kind of polyglutamic acid fertilizer mixed preparation devices, comprising: rack, pretreatment mechanism, mixing mechanism, driving mechanism and control system are arranged on rack;Rack top is provided with feed inlet, pretreatment mechanism is arranged at the bottom of feed inlet, and is communicated with feed inlet, pretreatment mechanism includes pretreatment box and screening assembly, and crushing assembly is arranged in pretreatment box, and screening assembly is arranged at the bottom of pretreatment box;Mixing mechanism is arranged at the bottom of pretreatment mechanism, and mixing mechanism includes mixing tank and stirring assembly, and stirring assembly is arranged in mixing tank;Control system includes PLC controller, parameter setting area and sensor group, by crushing assembly, the agglomerated grain by-product is crushed, then meet the raw material of particle size requirement is screened out by screening assembly, effectively avoid the problem that agglomerated raw material affects mixing uniformity, reduce the abrasion of raw material to mixing mechanism simultaneously, prolong the service life of device.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer production equipment, and in particular to a polyglutamic acid fertilizer mixing and preparation device. Background Technology

[0002] Polyglutamic acid fertilizer is a new type of fertilizer made primarily from grain processing byproducts (such as rice husks and bran), combined with nutrients such as nitrogen, phosphorus, and potassium, and other additives. It boasts advantages such as balanced nutrient content, long-lasting effect, and environmental friendliness. The production process of polyglutamic acid fertilizer requires thorough mixing of various raw materials to ensure fertilizer quality.

[0003] Currently, most fertilizer mixing devices on the market are single-shaft mixers or drum mixers. Single-shaft mixers have dead zones, resulting in uneven mixing of raw materials, especially for polyglutamic acid fertilizers containing grain by-products with large particle size differences and powdery nutrients, where the mixing effect is poor. While drum mixers have a wider mixing range, their mixing efficiency is low, and raw material stratification is prone to occur during the mixing process, affecting the overall quality of the fertilizer. In addition, most existing mixing devices lack raw material pretreatment functions. Grain by-products in polyglutamic acid fertilizers may clump, and directly introducing them into the mixing device will further reduce the mixing uniformity and may also cause wear and tear on the internal components of the device.

[0004] Therefore, a polyglutamic acid fertilizer mixing and preparation device is proposed to solve the above problems. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides a polyglutamic acid fertilizer mixing and preparation device.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a polyglutamic acid fertilizer mixing and preparation device, comprising: a frame, wherein a pretreatment mechanism, a mixing mechanism, a driving mechanism and a control system are provided on the frame;

[0007] The top of the frame is provided with a feed inlet, and the pretreatment mechanism is located at the bottom of the feed inlet and communicates with the feed inlet. The pretreatment mechanism includes a pretreatment box and a screening component. The pretreatment box is provided with a crushing component, and the screening component is located at the bottom of the pretreatment box.

[0008] The mixing mechanism is located at the bottom of the pretreatment mechanism, and the mixing mechanism includes a mixing tank and a stirring assembly, with the stirring assembly located inside the mixing tank;

[0009] The drive mechanism includes a main motor, a gearbox, and a transmission belt. The main motor is connected to the gearbox via the transmission belt, and the gearbox is connected to the crushing component and the stirring component respectively.

[0010] The control system includes a PLC controller, a parameter setting area, and a sensor group. The sensor group is connected to the input terminal of the PLC controller, and the output terminal of the PLC controller is connected to the drive mechanism.

[0011] In a preferred embodiment of the present invention, the crushing assembly includes two meshing crushing rollers, which are connected to the reduction gearbox.

[0012] In a preferred embodiment of the present invention, the stirring assembly includes two parallel stirring shafts, the surface of which is provided with reverse spiral blades, and the two stirring shafts are driven by synchronous gears and connected to a reduction gearbox.

[0013] In a preferred embodiment of this invention, the rotational speed of the stirring shaft is 100 r / min-200 r / min, and the pitch of the stirring blades is 150 mm-250 mm.

[0014] In a preferred embodiment of the present invention, a heating and insulation layer is provided on the surface of the mixing tank, and an electric heating wire is provided inside the heating and insulation layer.

[0015] In a preferred embodiment of this utility model, the electric heating power of the heating insulation layer is 3kW-8kW, and the heating temperature range is 30℃-80℃.

[0016] In a preferred embodiment of the present invention, the screening assembly includes a screen and a vibrating motor. The screen is inclined and arranged in the pretreatment box, and a waste outlet is provided at the lower end of the screen.

[0017] In a preferred embodiment of this utility model, the screen has an inclination angle of 10°-20° and a mesh diameter of 5mm-15mm.

[0018] In a preferred embodiment of this utility model, the bottom of the frame is provided with a finished product discharge port, and an electrically controlled valve is provided at the finished product discharge port.

[0019] In a preferred embodiment of the present invention, the sensor group includes a temperature sensor and a speed sensor, the temperature sensor being disposed inside the mixing tank and the speed sensor being disposed on the stirring assembly.

[0020] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0021] (1) The present invention is equipped with a pretreatment mechanism, which crushes the clumped grain by-products through the crushing component, and then screens out the raw materials that meet the particle size requirements through the screening component. This effectively avoids the problem of clumped raw materials affecting the uniformity of mixing, and at the same time reduces the wear of raw materials on the mixing mechanism and extends the service life of the device.

[0022] In addition, the mixing mechanism adopts a double-helix stirring assembly, with two stirring shafts rotating synchronously in opposite directions. Combined with stirring blades with opposite helical directions, it can make the raw materials form strong vertical convection and circumferential motion in the mixing tank, which greatly reduces the stirring dead angle and significantly improves the mixing uniformity. It is especially suitable for mixing granular and powdered raw materials in polyglutamic acid fertilizer.

[0023] (2) The mixing tank of this utility model is wrapped with a heating and insulation layer. The heating temperature can be adjusted by the control system according to the mixing process requirements of polyglutamic acid fertilizer, so as to promote the chemical reaction between raw materials and prevent the raw materials from clumping during the mixing process, thereby further improving the mixing quality and efficiency.

[0024] In addition, this utility model is equipped with a control system, which allows operators to automatically control the stirring speed, heating temperature, and mixing time. The sensor group monitors the operating status of the device in real time and feeds it back to the PLC controller. The PLC controller automatically adjusts the operation of each component, reducing the intensity of manual operation and improving production efficiency and stability. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0026] Figure 1 This is a three-dimensional structural diagram of a polyglutamic acid fertilizer mixing and preparation device according to a preferred embodiment of the present invention;

[0027] Figure 2 This is a cross-sectional view of a polyglutamic acid fertilizer mixing and preparation device according to a preferred embodiment of the present invention;

[0028] Figure 3 This is a connection diagram of the pretreatment mechanism and the mixing mechanism according to a preferred embodiment of the present invention;

[0029] Figure 4 This is a top view of the hybrid mechanism of a preferred embodiment of the present invention.

[0030] In the diagram: 1. Frame; 10. Feed inlet; 11. Finished product outlet; 2. Pre-treatment mechanism; 20. Pre-treatment box; 200. Crushing assembly; 21. Waste outlet; 3. Mixing mechanism; 30. Mixing tank; 300. Stirring assembly; 301. Heating and insulation layer; 302. Temperature sensor; 4. Drive mechanism; 40. Main motor; 41. Gearbox; 42. Drive belt; 5. Control system. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figures 1 to 4 As shown, a polyglutamic acid fertilizer mixing and preparation device includes: a frame 1, on which a pretreatment mechanism 2, a mixing mechanism 3, a driving mechanism 4, and a control system 5 are arranged.

[0035] The drive mechanism 4 includes a main motor 40, a reduction gearbox 41 and a transmission belt 42. The main motor 40 is connected to the reduction gearbox 41 through the transmission belt 42. The reduction gearbox 41 is connected to the crushing component 200 and the stirring component 300 respectively.

[0036] The top of the frame 1 is provided with a feed inlet 10, and the pretreatment mechanism 2 is provided at the bottom of the feed inlet 10 and communicates with the feed inlet 10. The pretreatment mechanism 2 includes a pretreatment box 20 and a screening component. The pretreatment box 20 is provided with a crushing component 200. Specifically, the crushing component 200 includes two meshing crushing rollers. The crushing rollers are connected to a reduction gearbox 41. In use, the reduction gearbox 41 controls the rotation of the two meshing crushing rollers to perform preliminary crushing of the raw materials.

[0037] The screening component is located at the bottom of the pretreatment box 20. Specifically, the screening component includes a screen and a vibrating motor. The screen is set at an inclination inside the pretreatment box 20, and a waste outlet 21 is set at the lower end of the screen. During use, the raw material falls into the screen after passing through the pretreatment box 20. The vibrating motor vibrates the screen. Raw materials with qualified particle size pass through the screen and enter the next process. Raw materials with unqualified particle size are output from the waste outlet 21. Preferably, the inclination angle of the screen is 10°-20° to ensure that unqualified raw materials can smoothly enter the waste outlet 21 while preventing all raw materials to be screened from entering the waste outlet 21. The screen mesh diameter is 5mm-15mm to meet the particle size requirements of fertilizer processing.

[0038] The pretreatment unit 2 crushes the agglomerated grain by-products through the crushing component 200, and then screens out the raw materials that meet the particle size requirements through the screening component. This effectively avoids the problem of agglomerated raw materials affecting the uniformity of mixing, while reducing the wear of raw materials on the mixing unit 3 and extending the service life of the device.

[0039] A mixing mechanism 3 is located at the bottom of the pretreatment mechanism 2. The mixing mechanism 3 includes a mixing tank 30 and a stirring assembly 300. The stirring assembly 300 is located inside the mixing tank 30 and includes two parallel stirring shafts. The surfaces of the stirring shafts are provided with counter-rotating helical blades. The two stirring shafts are driven by synchronous gears and connected to a reduction gearbox 41. Specifically, the stirring assembly 300 includes two parallel stirring shafts with counter-rotating helical blades on their surfaces. The two stirring shafts are driven by synchronous gears and connected to a reduction gearbox 41. The rotational speed of the stirring shafts is 100 r / min-20. The mixing mechanism 3 uses a double-helix mixing assembly 300, with two mixing shafts rotating synchronously in opposite directions. Combined with mixing blades with opposite helical directions, this enables the raw materials to form strong vertical convection and circumferential motion within the mixing tank 30, significantly reducing dead zones and greatly improving mixing uniformity. It is especially suitable for mixing granular and powdery raw materials in polyglutamic acid fertilizer.

[0040] The control system 5 includes a PLC controller, a parameter setting area, and a sensor group. The sensor group is connected to the input terminal of the PLC controller, and the output terminal of the PLC controller is connected to the drive mechanism 4. Specifically, the sensor group includes a temperature sensor 302 and a speed sensor. The temperature sensor 302 is installed inside the mixing tank 30, and the speed sensor is installed on the stirring assembly 300. The parameter setting area includes a touch screen, through which the operating parameters of each mechanism are set.

[0041] By setting up control system 5, operators can automatically control the stirring speed, heating temperature, and mixing time. The sensor group monitors the operating status of the device in real time and feeds it back to the PLC controller. The PLC controller automatically adjusts the operation of each component, reducing the intensity of manual operation and improving production efficiency and stability.

[0042] In a preferred embodiment of this utility model, a heating and insulation layer 301 is provided on the surface of the mixing tank 30. An electric heating wire is provided inside the heating and insulation layer 301. The electric heating power of the heating and insulation layer 301 is 3kW-8kW, and the heating temperature range is 30℃-80℃. The heating and insulation layer 301 is wrapped around the outside of the mixing tank 30. The heating temperature can be adjusted by the control system 5 according to the mixing process requirements of polyglutamic acid fertilizer, so as to promote the chemical reaction between raw materials and prevent the raw materials from clumping during the mixing process, thereby further improving the mixing quality and efficiency.

[0043] In a preferred embodiment of this utility model, the bottom of the frame 1 is provided with a finished product outlet 11, and an electric control valve is provided at the finished product outlet 11.

[0044] When using this utility model:

[0045] Basic parameter initialization

[0046] In the "Parameter Settings" area on the touchscreen, select "New Task," enter the batch number of this fertilizer production (for easy traceability), and set the key parameters according to the characteristics of the raw materials:

[0047] Grinding parameters: Based on the hardness of the grain by-product, set the grinding roller speed (indirectly controlled by the reduction gearbox 41, usually corresponding to the main motor 40 frequency of 30-40Hz, to ensure that the particle size of the raw material after grinding is close to the screen mesh diameter).

[0048] Screening parameters: Confirm the screen tilt angle (default 10°-20°, if the raw material is highly viscous, it can be adjusted to 15°-20° to enhance the smoothness of material feeding), check the vibration motor amplitude setting (default medium setting, if screening is not smooth, it can be adjusted to high setting to avoid raw material accumulation).

[0049] Mixing parameters: According to the fertilizer mixing requirements, set the stirring shaft speed (100r / min-200r / min, 150-200r / min when granular raw materials are the main components, and 100-150r / min when powdery raw materials are the main components), set the stirring blade pitch (refer to the equipment default value of 150mm-250mm, which must be matched with the stirring shaft speed to avoid raw material splashing), and preset the total mixing time (usually 15-30 minutes, adjusted according to the mixing uniformity requirements).

[0050] Pretreatment unit 2 starts

[0051] On the "Operation Control" interface of the touch screen, click "Start Preprocessing Mechanism 2" first, and the system will automatically trigger: the vibration motor starts first (runs under no load for 30 seconds, check whether the vibration is uniform and there is no abnormal noise), and then the crushing roller is driven and started through the reduction gearbox 41 (observe the rotation direction of the crushing roller: the two rollers mesh in opposite directions, ensure that the raw materials are squeezed and crushed towards each other).

[0052] Wait until the operation of the preprocessing mechanism 2 is stable (the amplitude of the vibration motor is uniform, and the crushing roller has no jamming), then open the manual gate of the feed port 10 (open slowly, control the feeding speed: it is appropriate that no raw materials accumulate in the preprocessing box 20 and no abnormal noise caused by overload occurs at the crushing roller, usually the feeding amount is 100-200kg / h, which is adjusted specifically according to the equipment model).

[0053] During the screening process, stand beside the waste outlet 21 and observe the screening effect: qualified raw materials (with a particle size of 5-15mm) fall into the lower mixing tank 30 through the screen, and unqualified raw materials (with a particle size > 15mm) slide to the waste outlet 21 along the inclined screen, and are collected in a special container (when the collected amount exceeds 1kg, it is necessary to suspend feeding, crush the unqualified raw materials again and put them into the preprocessing box 20 again to avoid waste).

[0054] After all raw materials to be processed have been put into the feed port 10, keep the preprocessing mechanism 2 running for 1-2 minutes (ensure that the residual raw materials in the preprocessing box 20 are completely crushed and screened), observe the observation cover on the top of the mixing tank 30: if no qualified raw materials continue to fall in, click "Stop Preprocessing Mechanism 2" to turn off the vibration motor and the crushing roller.

[0055] Start Mixing Mechanism 3

[0056] On the "Operation Control" interface of the touch screen, click "Start Mixing Mechanism 3", the system starts the main motor 40 first, which drives the double stirring shafts to rotate synchronously and reversely through the reduction gearbox 41, the two shafts rotate in opposite directions, the spiral blades push the raw materials to convect up and down, the heating insulation layer 301 works. If the temperature in the mixing cylinder is lower than the preset value, the heating wire works to heat the cylinder body; if the temperature exceeds the preset temperature, the system will automatically alarm, and it is necessary to suspend and check whether the friction of the raw materials is too high.

[0057] When the preset mixing time is reached, click "Pause Mixing" and take a sample to detect the mixing uniformity, adopting the "quartering method": divide the sample into four parts, mix two diagonal parts and sample again, it is qualified if no obvious stratification is observed; if it is unqualified, click "Continue Mixing", extend the mixing time for 2-3 minutes and detect again until it is qualified. After qualification, click "Discharge" on the touch screen, the electric control valve at the finished product discharge port 11 opens, and the finished product after mixing and processing flows out from the finished product discharge port 11.

[0058] Operators can automatically control the stirring speed, heating temperature, and mixing time through the control system 5. The sensor group monitors the operating status of the device in real time and feeds it back to the PLC controller. The PLC controller automatically adjusts the operation of each component, reducing the intensity of manual operation and improving production efficiency and stability.

[0059] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A polyglutamic acid fertilizer mixing and preparation apparatus, comprising: The frame is characterized in that it is provided with a pretreatment mechanism, a mixing mechanism, a drive mechanism and a control system; The top of the frame is provided with a feed inlet, and the pretreatment mechanism is located at the bottom of the feed inlet and communicates with the feed inlet. The pretreatment mechanism includes a pretreatment box and a screening component. The pretreatment box is provided with a crushing component, and the screening component is located at the bottom of the pretreatment box. The mixing mechanism is located at the bottom of the pretreatment mechanism, and the mixing mechanism includes a mixing tank and a stirring assembly, with the stirring assembly located inside the mixing tank; The drive mechanism includes a main motor, a gearbox, and a transmission belt. The main motor is connected to the gearbox via the transmission belt, and the gearbox is connected to the crushing component and the stirring component respectively. The control system includes a PLC controller, a parameter setting area, and a sensor group. The sensor group is connected to the input terminal of the PLC controller, and the output terminal of the PLC controller is connected to the drive mechanism.

2. The polyglutamic acid fertilizer mixing and preparation device according to claim 1, characterized in that: The crushing assembly includes two meshing crushing rollers, which are connected to the gearbox.

3. The polyglutamic acid fertilizer mixing and preparation device according to claim 1, characterized in that: The stirring assembly includes two parallel stirring shafts, each with a reverse spiral blade on its surface. The two stirring shafts are driven by a synchronous gear and connected to a reduction gearbox.

4. The polyglutamic acid fertilizer mixing and preparation device according to claim 3, characterized in that: The stirring shaft rotates at a speed of 100 r / min to 200 r / min, and the pitch of the stirring blades is 150 mm to 250 mm.

5. The polyglutamic acid fertilizer mixing and preparation device according to claim 1, characterized in that: The surface of the mixing tank is provided with a heating and insulation layer, and an electric heating wire is provided inside the heating and insulation layer.

6. The polyglutamic acid fertilizer mixing and preparation device according to claim 5, characterized in that: The electric heating power of the heating insulation layer is 3kW-8kW, and the heating temperature range is 30℃-80℃.

7. The polyglutamic acid fertilizer mixing and preparation device according to claim 1, characterized in that: The screening assembly includes a screen and a vibrating motor. The screen is inclined and installed inside the pretreatment box. A waste outlet is provided at the lower end of the screen.

8. The polyglutamic acid fertilizer mixing and preparation device according to claim 7, characterized in that: The screen has an inclination angle of 10°-20° and a mesh diameter of 5mm-15mm.

9. The polyglutamic acid fertilizer mixing and preparation device according to claim 1, characterized in that: The bottom of the frame is provided with a finished product discharge port, and an electrically controlled valve is provided at the finished product discharge port.

10. The polyglutamic acid fertilizer mixing and preparation device according to claim 1, characterized in that: The sensor group includes a temperature sensor and a speed sensor. The temperature sensor is located inside the mixing tank, and the speed sensor is located on the stirring assembly.

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