Equipment for preparing tobacco stem biochar slow-release potash fertilizer

By improving the preparation equipment and process, the problem of uneven particle size in the granulation process of tobacco straw biochar slow-release potassium fertilizer has been solved, thus achieving higher quality potassium fertilizer production.

CN224024964UActive Publication Date: 2026-03-24ZUNYI CITY BRANCH OF GUIZHOU TOBACCO COMPANY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing slow-release potassium fertilizers made from tobacco straw biochar suffer from problems such as inconsistent particle size, irregular shape, and uneven component distribution during the granulation process. These problems are mainly due to uneven raw material distribution, insufficient material mixing, and limitations of the granulation equipment.

Method used

An apparatus for preparing slow-release potassium fertilizer from tobacco straw biochar is used, comprising components such as a motor, reaction vessel, stirring blades, rotary shaft, and granulation parts. Through processes such as temperature control, stirring, and extrusion, the uniformity of material mixing and granulation are ensured.

Benefits of technology

It improves the quality of slow-release potassium fertilizer from tobacco straw biochar, solves the problems of uneven particle size and composition distribution, and enhances production efficiency and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The equipment comprises a motor I, a rotating rod, a granulation component and a reaction kettle, the rotating rod used for driving stirring blades to rotate is arranged at the lower end of the motor I, a group of positioning shells used for keeping the rotating rod positioned are arranged on the outer side of the rotating rod, and the granulation component is arranged in the reaction kettle. Compared with the prior art, the tobacco stem biochar chelation reaction device has the following beneficial effects that a worker starts the motor III, and the motor III drives the rotating seat to rotate and drives the pressing roller to rotate in the pressing cavity, so that the tobacco stem biochar chelation reaction device can be used for granulating tobacco stem biochar chelation reactants, and the tobacco stem biochar chelation reaction device can be used for granulating tobacco stem biochar chelation reactants. The particle mixture is extruded in the material pressing cavity and enters the particle pressing holes, so that the particle mixture is pressed into particles, the particles are guided out through the discharging plate, meanwhile, the particle mixture can be uniformly pressed through the particle pressing holes, and it is guaranteed that the sizes of the pressed particles are uniform.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the granulation technical field of potassium fertilizer relates to a preparation tobacco stem biochar slow release potassium fertilizer's equipment. BACKGROUND

[0002] The existing tobacco stem biochar slow release potassium fertilizer has the shortcomings in the uniformity of granulation, mainly in the uneven particle size, irregular shape and uneven composition distribution. The reasons for these shortcomings are the unevenness of tobacco stem biochar raw materials, insufficient mixing of materials during granulation and limitations of granulation equipment. The differences in original biomass and inconsistency in the processing process may cause fluctuations in the physical and chemical properties of tobacco stem biochar raw materials, which directly affects the flowability and granulation of materials during granulation. In addition, insufficient mixing of materials during granulation leads to uneven distribution of potassium fertilizer components in the particles, affecting the slow release effect and fertilizer efficiency of the fertilizer. The limitations of granulation equipment, such as uneven stirring and unreasonable nozzle design, also cause inconsistencies in particle size and shape.

[0003] The conventional methods include optimizing raw material pretreatment, improving granulation equipment and adjusting process parameters. In terms of raw material pretreatment, screening, crushing and homogenization are used to reduce the physical differences of raw materials; in terms of granulation equipment, more advanced stirring and nozzle design are used to improve the uniformity of material mixing; process parameter adjustment involves fine control of temperature, pressure, humidity and other conditions during granulation. However, the disadvantages of these methods are the increase in cost, such as equipment upgrade and maintenance cost, and the increase in operation complexity, which may lead to a decrease in production efficiency and an increase in operation difficulty, therefore, there is an urgent need for a preparation tobacco stem biochar slow release potassium fertilizer equipment to solve the above problems. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a preparation tobacco stem biochar slow release potassium fertilizer equipment to solve the problems raised in the background art.

[0005] The utility model realizes the following technical scheme: a preparation tobacco stem biochar slow release potassium fertilizer equipment, comprising: a motor and a reaction kettle, the lower end of the motor is provided with a rotating rod for driving the rotation of the stirring blade, the outer side of the rotating rod is provided with a group of positioning shells for keeping the rotating rod in position, the lower end of the positioning shell is provided with a group of upper cover bodies for quickly disassembling the motor and the rotating rod, the lower end of the upper cover body is provided with a group of main cover bodies for quickly disassembling the upper end structure of the reaction kettle, the lower end of the main cover body is provided with a group of reaction kettles for chelating reaction of tobacco stem biochar, the front side of the lower end of the reaction kettle is provided with a group of granulation components for making particles from tobacco stem biochar chelating reaction products;

[0006] The granulating component comprises a connecting seat and a granulating hole, the connecting seat is a flange structure, the inner side of the connecting seat is provided with a group of pressure cavities for granulating the straw biochar chelation reactant, the pressure cavity is a circular structure in plan view, the inner side of the pressure cavity is provided with a group of pressure rollers for extruding the straw biochar chelation reactant, the middle position of the lower end of the pressure roller is provided with a group of rotating seats for driving the rotation of the pressure roller in the pressure cavity.

[0007] As a preferred embodiment, the middle position of the lower end of the rotating seat is provided with a group of transmission rods for driving the rotation of the rotating seat, the lower end of the transmission rod is connected with the motor three through a right-angle transmission box, the bottom of the pressure cavity is provided with a plurality of groups of granulating holes for extruding and granulating.

[0008] As a preferred embodiment, a plurality of groups of the granulating holes are arranged in a circular plane, and the bottom of the granulating hole is provided with a group of bottom cavities for guiding the particles out, the front side of the bottom cavity is provided with a group of discharging plates for guiding the prepared particles out, after the concentrated liquid is extracted through the extraction pipe, the concentrated liquid is guided and sent through the motor two and the guide pipe, and then mixed with kaolin, calcium and magnesium materials in the mixing hopper, and then enters the granulating component through the discharging pipe, the motor three is started, the motor three drives the rotating seat to rotate and drives the pressure roller to rotate in the pressure cavity, the particle mixture is extruded in the pressure cavity, and then enters the granulating hole, so that the particle mixture is pressed into particles and discharged through the discharging plate.

[0009] As a preferred embodiment, the discharging plate is an inclined structure, and the inclination angle is 45°, the upper end of the granulating component is provided with a group of discharging pipes for guiding and sending the straw biochar chelation reactant and kaolin, calcium and magnesium materials after mixing.

[0010] As a preferred embodiment, the lower end of the discharging pipe is sealingly connected with the upper end of the granulating component through a plurality of groups of bolts, the rear side of the upper end of the discharging pipe is provided with a group of mixing hoppers for mixing the straw biochar chelation reactant and kaolin, calcium and magnesium materials, and the mixing hopper is provided with a mixing stirring roller.

[0011] As a preferred embodiment, the rear side of the mixing hopper is provided with a group of guide pipes for guiding the straw biochar chelation reactant out of the reaction kettle, the guide pipe is provided with a group of guide augers, and the rear side of the guide auger is provided with a group of motor two for providing power.

[0012] As a preferred embodiment, the rear side of the guide pipe is provided with a group of extraction pipes for extracting the straw biochar chelation reactant in the reaction kettle, the extraction pipe is located at the bottom of the reaction kettle, and the lower end of the extraction pipe is provided with a group of colloid pumps, and the extraction pipe penetrates through the right side of the main cover body.

[0013] As a preferred embodiment, the upper end surface of the upper cover body is provided with a plurality of groups of feeding ports for guiding materials such as potassium sulfate, amino acid and polyglutamic acid, the rear side of the upper end of the upper cover body is provided with a group of steam guide ports for discharging concentrated steam inside the reaction kettle, the inner wall of the reaction kettle is provided with a plurality of groups of annular resistance heating wires, and the resistance heating wires are used to provide temperature regulation inside the reaction kettle, before tobacco is made into biochar and reacts with materials such as potassium sulfate, amino acid and polyglutamic acid in the reaction kettle, the temperature inside the reaction kettle is raised to 80 DEG C, and the motor one drives the rotating rod and the stirring blade to mix the materials inside, then the reaction kettle is heated again, and the liquid inside the reaction kettle is concentrated, after the concentration is completed, the concentrated liquid is guided by the motor two and the guide pipe, mixed with materials such as kaolin, calcium and magnesium in the mixing hopper, and then enters the granulating part through the discharging pipe, and then the temperature needs of different reaction environments are met, so that the quality of the tobacco stalk biochar potassium fertilizer is improved.

[0014] After the above technical scheme is adopted, the beneficial effects of the present application are as follows: after the concentrated liquid is extracted by the extraction pipe, the concentrated liquid is guided by the motor two and the guide pipe, mixed with materials such as kaolin, calcium and magnesium in the mixing hopper, and then enters the granulating part through the discharging pipe, the motor three is started, the motor three drives the rotating seat to rotate and drives the pressure roller to rotate in the pressure cavity, the granular mixture is extruded in the pressure cavity and enters the pressure hole, so that the granular mixture is pressed into particles and discharged through the discharging plate, before tobacco is made into biochar and reacts with materials such as potassium sulfate, amino acid and polyglutamic acid in the reaction kettle, the temperature inside the reaction kettle is raised to 80 DEG C, and the motor one drives the rotating rod and the stirring blade to mix the materials inside, then the reaction kettle is heated again, and the liquid inside the reaction kettle is concentrated, after the concentration is completed, the concentrated liquid is guided by the motor two and the guide pipe, mixed with materials such as kaolin, calcium and magnesium in the mixing hopper, and then enters the granulating part inside the reaction kettle, and then the temperature needs of different reaction environments are met, so that the quality of the tobacco stalk biochar potassium fertilizer is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Figure 1The utility model discloses a right oblique front side overhead structure schematic diagram of a device for preparing tobacco stalk biochar slow-release potassium fertilizer,

[0017] Figure 2 The utility model discloses a right side overhead structure position schematic diagram of a reaction kettle in a device for preparing tobacco stalk biochar slow-release potassium fertilizer,

[0018] Figure 3 The utility model discloses a left oblique front side overhead structure schematic diagram of a granulating part in a device for preparing tobacco stalk biochar slow-release potassium fertilizer,

[0019] Figure 4 For Figure 3 The structure enlarged view of A in the figure,

[0020] In the figure: 100 - motor one, 110 - rotating rod, 120 - upper cover body, 130 - feeding port, 140 - main cover body, 150 - motor two, 160 - guide pipe, 170 - mixing hopper, 180 - discharging pipe, 190 - granulating part, 200 - discharging plate, 210 - motor three, 220 - reaction kettle,

[0021] 19a - connecting seat, 19b - pressing material cavity, 19c - pressing roller, 19d - rotating seat, 19e - granulation hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figures 1-4 A device for preparing tobacco stalk biochar slow-release potassium fertilizer, comprising: motor one 100, granulating part 190 and reaction kettle 220, the lower end of motor one 100 is provided with rotating rod 110 for driving stirring vane to rotate, the outer side of rotating rod 110 is provided with a group of positioning shells for keeping rotating rod 110 positioning, the lower end of positioning shell is provided with a group of upper cover bodies 120 for quickly disassembling motor, rotating rod 110, the lower end of upper cover body 120 is provided with a group of main cover bodies 140 for quickly disassembling the upper end structure of reaction kettle 220, the lower end of main cover body 140 is provided with a group of reaction kettles 220 for making tobacco into biochar and carrying out chelation reaction, the front side of the lower end of reaction kettle 220 is provided with a group of granulating parts 190 for making tobacco stalk biochar chelation reaction product into particles,

[0024] The granulating component 190 comprises a connecting seat 19a, a pressure cavity 19b, a pressure roller 19c, a rotating seat 19d and a granulating hole 19e. The connecting seat 19a is a flange structure, and a group of pressure cavities 19b for granulating the straw biochar chelation reactant are arranged in the inner side of the connecting seat 19a. The pressure cavities 19b are circular in the top view, and a group of pressure rollers 19c for extruding the straw biochar chelation reactant are arranged in the pressure cavities 19b.

[0025] A group of rotating seats 19d for rotating the rotating seat 19d are arranged at the lower end of the middle position of the rotating seat 19d. The lower end of the rotating seat 19d is connected with the motor three 210 through a right-angle transmission box. A group of granulating holes 19e for extruding and granulating are arranged at the bottom of the pressure cavity 19b.

[0026] The granulating holes 19e are circular and arranged in a plane. A group of bottom cavities for guiding the granules are arranged at the bottom of the granulating holes 19e. A group of discharging plates 200 for guiding the granules are arranged at the front side of the bottom cavities.

[0027] The discharging plate 200 is inclined, and the inclination angle is 45°. A group of discharging pipes 180 for guiding the mixture of the straw biochar chelation reactant, kaolin, calcium and magnesium after mixing are arranged at the upper end of the granulating component 190.

[0028] The lower end of the discharging pipe 180 is sealingly connected with the upper end of the granulating component 190 through a group of bolts. A group of mixing hoppers 170 for mixing the straw biochar chelation reactant, kaolin, calcium and magnesium are arranged at the rear side of the upper end of the discharging pipe 180. The mixing hoppers 170 are internally provided with mixing stirring rollers.

[0029] A group of guiding pipes 160 for guiding the straw biochar chelation reactant from the inner side of the reaction kettle 220 are arranged at the rear side of the mixing hoppers 170. The guiding pipes 160 are internally provided with a group of material guiding augers. A group of motors two 150 for providing power are arranged at the rear side of the material guiding augers.

[0030] A group of extraction pipes for extracting the straw biochar chelation reactant from the inner side of the reaction kettle 220 are arranged at the lower end of the rear side of the guiding pipes 160. The extraction pipes are arranged at the bottom of the reaction kettle 220, and a group of colloid pumps are arranged at the inner side of the lower end of the extraction pipes. The extraction pipes penetrate through the right side of the upper end of the main cover body 140.

[0031] The upper cover body 120 is provided with a plurality of groups of feeding ports 130 for guiding potassium sulfate, amino acid and polyglutamic acid and the like materials to enter, and the upper end rear side of the upper cover body 120 is provided with a group of steam guide ports for guiding the concentrated steam in the reaction kettle 220 to be discharged, and the inner wall of the reaction kettle 220 is provided with a plurality of groups of annular resistance heating wires, and the resistance heating wires are used to provide temperature control for the inside of the reaction kettle 220.

[0032] Please refer to Figures 1-4 Before the tobacco is made into biochar and reacts with potassium sulfate, amino acid, polyglutamic acid and the like materials to produce chelation in the reaction kettle 220, the inside of the reaction kettle 220 is heated to 80 DEG C, and the motor 100 drives the rotating rod 110 and the stirring blades to mix the materials in the inside, then the reaction kettle 220 is heated again, and the concentrated reaction of the liquid in the inside is generated, and when the concentration is completed, the concentrated liquid is extracted through the extraction pipe, and the motor 150 and the guide pipe 160 are used to guide the concentrated liquid, and the concentrated liquid is mixed with kaolin, calcium and magnesium and the like materials in the mixing hopper 170, and then enters the granulating part 190 through the discharging pipe 180, and then the temperature requirement of different reaction environments is met, so that the quality of the tobacco stem biochar potassium fertilizer is improved.

[0033] Please refer to Figures 1-4 When the concentrated liquid is extracted through the extraction pipe after the concentration is completed, the motor 150 and the guide pipe 160 are used to guide the concentrated liquid, and the concentrated liquid is mixed with kaolin, calcium and magnesium and the like materials in the mixing hopper 170, and then enters the granulating part 190 through the discharging pipe 180, and the motor 210 is started, and the motor 210 drives the rotating seat 19d to rotate and drives the pressing roller 19c to rotate in the pressing cavity 19b, so that the granular mixture is extruded in the pressing cavity 19b, and then enters the granulating hole 19e, so that the granular mixture is pressed into particles, and then is guided out through the discharging plate 200.

[0034] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An apparatus for preparing slow-release potassium fertilizer from tobacco straw biochar, comprising: The motor (100), granulation component (190), and reactor (220) are characterized in that: the lower end of the motor (100) is provided with a rotating rod (110) for driving the stirring blade to rotate; a set of positioning shells for maintaining the positioning of the rotating rod (110) is provided on the outside of the rotating rod (110); a set of upper cover (120) for quick disassembly of the motor and rotating rod (110) is provided at the lower end of the upper cover (120); a set of main cover (140) for quick disassembly of the upper structure of the reactor (220) is provided at the lower end of the main cover (140); a set of reactor (220) for chelating tobacco into biochar is provided at the lower end of the reactor (220); and a set of granulation component (190) for granulating the chelated reactants of tobacco biochar is provided at the lower front side of the reactor (220). The granulation component (190) includes a connecting seat (19a), a pressing chamber (19b), a pressing roller (19c), a rotating seat (19d), and a granulation hole (19e). The connecting seat (19a) is a flange structure. The connecting seat (19a) has a set of pressing chambers (19b) for granulating tobacco biochar chelate reactants. The pressing chamber (19b) has a circular cross-section when viewed from above. The pressing chamber (19b) has a set of pressing rollers (19c) for extruding the tobacco biochar chelate reactants. The pressing rollers (19c) have a set of rotating seats (19d) at the lower end of the middle position for rotating them inside the pressing chamber (19b).

2. The equipment for preparing slow-release potassium fertilizer from tobacco straw biochar according to claim 1, characterized in that: The lower end of the middle position of the rotating seat (19d) is provided with a set of transmission rods for driving the rotating seat (19d) to rotate. The lower end of the transmission rods is connected to the motor three (210) through a right-angle transmission box. The bottom of the pressing chamber (19b) is provided with several sets of pressing holes (19e) for extrusion granulation.

3. The equipment for preparing slow-release potassium fertilizer from tobacco straw biochar according to claim 2, characterized in that: Several sets of pelletizing holes (19e) are arranged in a circular plane, and a bottom cavity for discharging the pellets is provided at the bottom of several sets of pelletizing holes (19e). A feed plate (200) for discharging the finished pellets is provided on the front side of the bottom cavity.

4. The equipment for preparing slow-release potassium fertilizer from tobacco straw biochar according to claim 3, characterized in that: The feeding plate (200) is an inclined structure with an inclination angle of 45°. The upper end of the granulation component (190) is provided with a feeding pipe (180) for conveying the mixture of tobacco biochar chelate reactants with kaolin and calcium magnesium materials.

5. The equipment for preparing slow-release potassium fertilizer from tobacco straw biochar according to claim 4, characterized in that: The lower end of the feeding pipe (180) is sealed to the upper end of the granulation component (190) by several sets of bolts. The rear side of the upper end of the feeding pipe (180) is provided with a mixing hopper (170) for mixing tobacco biochar chelate reactants with kaolin and calcium magnesium materials. The mixing hopper (170) is provided with mixing rollers inside.

6. The equipment for preparing slow-release potassium fertilizer from tobacco straw biochar according to claim 5, characterized in that: The mixing hopper (170) is provided with a set of guide pipes (160) for exporting the tobacco biochar chelation reactants from the inside of the reactor (220). The guide pipes (160) are provided with a set of guide augers. The guide augers are provided with a set of motors (150) for providing power to them.

7. The apparatus for preparing slow-release potassium fertilizer from tobacco straw biochar according to claim 6, characterized in that: The lower rear end of the guide pipe (160) is provided with a set of extraction pipes for extracting the tobacco biochar chelate reactants inside the reactor (220). The extraction pipes are located at the bottom of the reactor (220), and the lower end is provided with a set of gelatinous material pumps. The extraction pipes penetrate the upper right side of the main cover (140).

8. The equipment for preparing slow-release potassium fertilizer from tobacco straw biochar according to claim 1, characterized in that: The upper surface of the cover (120) is provided with several sets of feed inlets (130) for guiding potassium sulfate, amino acids and polyglutamic acid materials. The upper rear side of the cover (120) is provided with a set of steam inlets for discharging concentrated steam from the reactor (220). The inner wall of the reactor (220) is provided with several sets of annular resistance heating wires, and the temperature inside the reactor (220) is controlled by the resistance heating wires.