Grain and oil crop improved soil composition and preparation device

By using a horizontal cylindrical mixing shell and a synergistic stirring scraper design, the problem of adhesion and clumping of high-viscosity slurry during the mixing process is solved, achieving uniform mixing and stability of soil improvement compositions for grain and oil crops, and making it suitable for the improvement of saline-alkali land and compacted soil.

CN121466869APending Publication Date: 2026-02-06WESTERN (CHONGQING) GEOLOGICAL TECH INNOVATION RES INST CO LTD
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Patent Information

Application Number
CN202511550369.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-28
Publication Date
2026-02-06

AI Technical Summary

Technical Problem

Existing mixing equipment is prone to adhesion, condensation and agglomeration, and cleaning difficulties when processing highly viscous organic slurries and extremely light inorganic powders. This is especially true when used for improving grain and oil crops in saline-alkali or compacted soils, where existing equipment cannot meet the requirements for uniform mixing and dust prevention.

Method used

It adopts a horizontal cylindrical mixing shell design, combined with main and auxiliary stirring mechanisms, material distribution components and jacket temperature control structure. Through the macroscopic dispersion of the main stirring arm, the scraping of the auxiliary stirring scraper, the dispersion of the material distribution components and the sealed feeding design, it ensures uniform mixing of materials and prevents adhesion and agglomeration.

Benefits of technology

It achieves uniform mixing of high-viscosity slurry, avoids adhesion and clumping, and ensures the fluidity and activity of the material. It is suitable for the preparation of soil improvement compositions for grain and oil crops, especially for the improvement of saline-alkali land and compacted soil.

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Abstract

The invention discloses a grain and oil crop improved soil composition and a preparation device, the grain and oil crop improved soil composition comprises a mixing shell, a driving motor and a discharge valve, the top of the mixing shell is provided with a feed port and a sealed feeding door, the mixing shell is of a horizontally arranged cylindrical structure, and the outer wall of the mixing shell is wrapped with a double-layer jacket; a mixing assembly is arranged on the mixing shell and comprises a main rotating shaft, an auxiliary rotating shaft, an auxiliary stirring scraping plate and a transmission group; a material distributing assembly is arranged on the mixing shell and comprises an L-shaped dispersing pipe, a hinge seat is arranged at the bottom of the L-shaped dispersing pipe, a dispersing head is rotationally arranged on the hinge seat, and a flexible hose is arranged between the dispersing head and the L-shaped dispersing pipe; through the synergistic effect of the main stirring mechanism and the auxiliary stirring mechanism, the swing dispersion of the material distribution assembly, the jacket temperature control structure and the sealed feeding design, the problems that high-viscosity slurry is prone to adhesion and caking, dead corners are formed, cleaning is difficult and the like in the mixing process are effectively solved, and the preparation technology is particularly suitable for the grain and oil crop improved soil composition.
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Description

Technical Field

[0001] The technical field of this invention is specifically a soil improvement composition for grain and oil crops and its preparation apparatus. Background Technology

[0002] When planting specific grain and oil crops, such as sunflower seeds and high-oleic peanuts, in saline-alkali or compacted soil areas, a special modified composition is often used. This composition consists of a highly viscous organic slurry and an extremely lightweight inorganic powder. The organic slurry may include seaweed extract or humic acid concentrate, while the inorganic powder may include modified zeolite powder or diatomaceous earth. The slurry acts as both a modifier and a binder, requiring it to be uniformly mixed and coated with the powder at low temperatures to form tiny particles. This is to prevent the lightweight powder from generating dust and to achieve a slow-release effect in the soil. The high viscosity, easy cooling and agglomeration, easy dust generation of the lightweight powder, and strict process requirements place extremely special demands on the mechanical structure of the preparation device.

[0003] Existing typical mixing equipment, such as high-speed shear mixers, double-helix conical mixers, or airflow mixers, all exhibit inadequacies in their mechanical structure when applied to this specific scenario: highly viscous slurries cool rapidly and adhere to any metal surface, such as the mixing shaft or chamber wall, upon contact. Conventional mixers have complex structures with numerous components, including support shafts, blades, and wall scrapers, creating many difficult-to-clean right angles and dead corners. The adhering material accumulates layer by layer, condenses and clumps, and becomes a source of contamination for microbial growth. Summary of the Invention

[0004] The purpose of this invention is to provide a soil improvement composition for grain and oil crops and a preparation apparatus to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a preparation device for soil improvement composition for grain and oil crops, comprising a mixing shell drive motor and a discharge valve, wherein the top of the mixing shell is provided with a feed inlet and a sealed feeding door, the mixing shell is a horizontally arranged cylindrical structure, and the outer wall of the mixing shell is wrapped with a double-layer jacket. A mixing assembly is provided on the mixing shell. The mixing assembly includes a main rotating shaft, a secondary rotating shaft, a secondary stirring scraper, and a transmission group. The main rotating shaft is rotatably mounted on the central axis of the mixing shell through bearings, and one end is connected to the output end of the drive motor. A main stirring arm is fixedly mounted on the main rotating shaft along the axial direction. The secondary rotating shaft is mounted parallel to the main rotating shaft through bearings below it and located in the U-shaped bottom area of ​​the mixing shell. The secondary stirring scraper is fixedly mounted on the secondary rotating shaft. The mixing shell is equipped with a material distribution assembly, which includes an L-shaped dispersing tube. A hinge seat is provided at the bottom of the L-shaped dispersing tube, and a dispersing head is rotatably mounted on the hinge seat. A flexible hose is provided between the dispersing head and the L-shaped dispersing tube. The rotational movement of the main stirring arm abuts against the dispersing head and performs periodic reciprocating oscillation.

[0006] Preferably, the L-shaped dispersion tube is fixed on the feed inlet, with one end extending downward into the mixing shell and the other end connected to the external slurry supply system.

[0007] Preferably, the dispersing head has a hollow arc structure and through holes on its surface.

[0008] Preferably, the transmission assembly is located outside the mixing housing and is used to transmit the rotational motion of the main shaft to the auxiliary shaft and drive the auxiliary shaft to rotate synchronously with the main shaft.

[0009] Preferably, the transmission assembly includes a driving pulley fixedly mounted on the main shaft, a driven pulley fixedly mounted on the auxiliary shaft, and a belt that is simultaneously connected to both the driving pulley and the driven pulley.

[0010] Preferably, the multiple main stirring arms are staggered along the axial direction of the main rotating shaft, and the multiple auxiliary stirring scrapers are staggered along the axial direction of the auxiliary rotating shaft. The ends of the auxiliary stirring scrapers are adapted to the shape of the U-shaped bottom inner wall of the mixing shell and maintain a gap.

[0011] Preferably, the double-layer jacket is provided with a cooling medium inlet and a cooling medium outlet, the mixing shell is a hollow structure, and the inner wall of the hollow structure is provided with a heat insulation layer.

[0012] Preferably, the bottom of the mixing shell is provided with a discharge port, the drive motor is fixed by a support frame, the support frame is fixed to one end of the mixing shell, and a discharge valve is provided on the discharge port.

[0013] Preferably, the sealed feeding door is provided with a transparent observation window, and its edge is fitted with an inflatable and deflated sealing ring.

[0014] A soil-improving composition for grain and oil crops, comprising by weight percentage 35%-45% modified zeolite powder, 15%-20% diatomaceous earth, 20%-30% humic acid concentrate, 8%-12% seaweed extract gel, 5%-8% biochar powder, 1%-2% compound probiotic carrier powder, and 0.5%-1% trace element chelates, wherein the soil-improving composition is used in a preparation apparatus for soil-improving compositions for grain and oil crops.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention effectively solves the problems of easy adhesion, clumping, dead corner formation and cleaning difficulties of high-viscosity slurry during the mixing process by the synergistic action of the main and auxiliary stirring mechanisms, the oscillating dispersion of the material distribution components, the jacket temperature control structure and the sealed feeding design. It is particularly suitable for the preparation process of soil improvement compositions for grain and oil crops.

[0016] 2. In this invention, the main stirring arm on the main rotating shaft is responsible for the macroscopic dispersion, axial propulsion and radial mixing of materials, ensuring the overall flow of materials; the auxiliary stirring scraper on the auxiliary rotating shaft is specifically designed for the U-shaped bottom of the mixing shell, which is prone to material accumulation. Its shape is adapted to the inner wall and maintains a gap. During rotation, it effectively scrapes off the material adhering to the wall surface, preventing the material from depositing, condensing and caking on the wall surface, and fundamentally reducing the causes of adhesion and clumping.

[0017] 3. The present invention, through the design of the L-shaped dispersing tube and the swingable dispersing head of the material distribution component, enables the slurry to be sprayed out in multiple directions through the through holes on the surface of the dispersing head when it enters the mixing shell, and is periodically pushed and swung back and forth by the main stirring arm. This avoids the directional accumulation and local blockage of materials at the feed inlet, ensures the uniformity of the initial dispersion of materials, and lays the foundation for subsequent efficient mixing.

[0018] 4. The present invention, through the double-layer jacket wrapped around the outer wall of the mixing shell and the design of the inlet and outlet of the cooling medium, allows the circulating cooling medium to pass through, and can precisely control the material temperature during the mixing process. This is crucial for preventing the high-viscosity slurry from deteriorating due to frictional heat or from solidifying and sticking to the wall due to excessively low ambient temperature, and ensures the stability of the active ingredients and physical properties of the soil improvement composition for grain and oil crops. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the hybrid shell of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the other side of the hybrid housing of the present invention.

[0021] Figure 3 This is a schematic diagram of the internal structure of the hybrid shell of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of the hybrid component of the present invention.

[0023] Figure 5 This is a schematic diagram of the material dispensing component of the present invention.

[0024] Figure 6 This is a schematic diagram of the connection structure of the material distribution component of the present invention.

[0025] Figure 7 This is a schematic diagram of the hollow structure of the hybrid shell of the present invention.

[0026] Figure 8This is a schematic diagram of the sealing ring of the present invention.

[0027] In the diagram: 1-Mixing shell; 11-Inlet; 12-Outlet; 13-Support frame; 14-Double jacket; 15-Cooling medium inlet; 16-Cooling medium outlet; 2-Drive motor; 21-Main shaft; 22-Main stirring arm; 3-Transmission assembly; 31-Secondary shaft; 32-Secondary stirring scraper; 4-Insulation layer; 5-Sealed feeding door; 51-Transparent observation window; 52-Sealing ring; 6-Dispersion head; 61-Through hole; 62-Hinge seat; 63-Flexible hose; 7-L-shaped dispersion tube. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1 The present invention provides a technical solution: The present invention provides a preparation device for soil improvement composition for grain and oil crops, including a mixing shell 1, a drive motor 2 and a discharge valve. The mixing shell 1 is a horizontally arranged cylindrical structure with a feed inlet 11 and a sealed feeding door 5 at the top. The outer wall is wrapped with a double-layer jacket 14. The mixing shell 1 is provided with a mixing component and a distributing component to achieve efficient and uniform mixing of high-viscosity slurry and prevent clumping and adhesion.

[0030] like Figure 1 and Figure 7 As shown, the hollow inner wall of the mixing shell 1 is provided with a heat insulation layer, and the double-layer jacket 14 is provided with a cooling medium inlet 15 and a cooling medium outlet 16. The temperature during the mixing process is controlled by circulating cooling medium to prevent the material from deteriorating due to overheating or condensing and sticking to the wall due to overcooling.

[0031] like Figure 3 and Figure 4 As shown, the mixing assembly includes a main rotating shaft 21, a secondary rotating shaft 31, a secondary stirring scraper 32, and a transmission assembly 3. The main rotating shaft 21 is rotatably mounted on the central axis of the mixing shell 1 via bearings, and one end of it is connected to the output end of the drive motor 2. Multiple main stirring arms 22 are staggered along the axial direction of the main rotating shaft 21 to disperse and propel materials. The secondary rotating shaft 31 is mounted parallel to the main rotating shaft 21 via bearings and is located in the U-shaped bottom area of ​​the mixing shell 1. The secondary stirring scraper 32 is fixedly mounted on the secondary rotating shaft 31, and its end shape is adapted to the inner wall of the U-shaped bottom of the mixing shell 1 and maintains a certain gap. It can scrape off the material adhering to the wall surface during rotation to prevent material accumulation and the formation of dead corners.

[0032] The transmission group 3 is located outside the mixing shell 1 and includes a driving wheel fixedly installed on the main rotating shaft 21, a driven wheel fixedly installed on the auxiliary rotating shaft 31, and a belt simultaneously connected to the two wheels. The rotational motion of the main rotating shaft 21 drives the auxiliary rotating shaft 31 to rotate synchronously through the belt drive, thereby realizing the coordinated operation of the main and auxiliary stirring mechanisms.

[0033] like Figure 5 and Figure 6 As shown, the material distribution assembly includes an L-shaped dispersing tube 7 and a dispersing head 6. The L-shaped dispersing tube 7 is fixedly installed on the inlet 11, with one end extending downward into the mixing shell 1 and the other end connected to the external slurry supply system. The dispersing head 6 is rotatably connected to the bottom of the L-shaped dispersing tube 7 via a hinge seat 62, and the two are connected by a flexible hose 63. The dispersing head 6 has an arc-shaped hollow structure with several through holes 61 on its surface. During rotation, the main stirring arm 22 periodically abuts against the dispersing head 6, pushing it to reciprocate, causing the slurry to be dispersed and sprayed out in multiple directions through the through holes 61, avoiding directional accumulation and blockage.

[0034] like Figure 1 and Figure 2 As shown, the bottom of the mixing shell 1 is provided with a discharge port 12, on which a discharge valve is installed to control the discharge of materials after mixing. The drive motor 2 is fixedly installed at one end of the mixing shell 1 via a support frame 13.

[0035] like Figure 8 As shown, the sealed feeding door 5 is equipped with a transparent observation window 51, which allows operators to observe the internal mixing situation in real time; its edge is fitted with an inflatable and deflated sealing ring 52, which can achieve a tight seal after inflation to prevent material spillage and contamination, and can be easily opened for cleaning and maintenance after deflation.

[0036] This invention effectively solves the problems of easy adhesion, clumping, dead corner formation, and difficult cleaning of high-viscosity slurries during the mixing process by the synergistic action of the main and auxiliary stirring mechanisms, the oscillating dispersion of the material distribution components, the jacket temperature control structure, and the sealed feeding design. It is particularly suitable for the preparation process of soil improvement compositions for grain and oil crops.

[0037] A soil improvement composition for grain and oil crops includes 35%-45% modified zeolite powder by mass percentage. The modified zeolite powder, as the largest basic component, is specially modified with ammonium-calcium ions and has extremely high selective adsorption capacity for sodium ions. It is a core material that directly addresses the problem of saline-alkali land.

[0038] The 15%-20% diatomaceous earth, with its huge specific surface area and microporous structure, further enhances the adsorption performance of the composition, adsorbing excess salts and heavy metals, improving soil permeability, and preventing compaction.

[0039] 20%-30% humic acid concentrate is a key high-viscosity organic slurry. It is not only an excellent soil conditioner that can stimulate crop root growth and improve fertilizer utilization, but more importantly, it acts as a natural binder to encapsulate inorganic powders during low-temperature mixing.

[0040] The 8%-12% seaweed extract gel, in synergy with humic acid concentrate, further enhances the viscosity and water retention of the slurry. Its rich content of seaweed polysaccharides, betaine and other substances can significantly improve the crop's stress resistance.

[0041] 5%-8% biochar powder provides a permanent habitat for probiotics, has a strong water and fertilizer retention capacity, can fix carbon elements, and improve soil aggregate structure.

[0042] 1%-2% compound probiotic carrier powder, containing probiotics such as salt- and alkali-resistant nitrogen-fixing bacteria and phosphorus- and potassium-solubilizing bacteria, with the carrier being organic materials such as wheat bran and soybean meal.

[0043] 0.5%-1% trace element chelates are used to specifically supplement the trace elements that are often lacking in saline-alkali soils. The chelated form is more easily absorbed by crops. The above-mentioned soil improvement composition is used in the preparation device of soil improvement composition for grain and oil crops.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preparation apparatus for soil improvement composition for grain and oil crops, comprising a mixing shell (1), a drive motor (2), and a discharge valve, characterized in that: The top of the mixing shell (1) is provided with a feed inlet (11) and a sealed feeding door (5). The mixing shell (1) is a horizontal cylindrical structure, and the outer wall of the mixing shell (1) is wrapped with a double-layer jacket (14). A mixing assembly is provided on the mixing shell (1). The mixing assembly includes a main rotating shaft (21), a secondary rotating shaft (31), a secondary stirring scraper (32), and a transmission group (3). The main rotating shaft (21) is rotatably set at the central axis position of the mixing shell (1) through bearings, and one end is connected to the output end of the drive motor (2). A main stirring arm (22) is fixedly set on the main rotating shaft (21) along the axial direction. The secondary rotating shaft (31) is set parallel to the main rotating shaft (21) through bearings and is located in the U-shaped bottom area of ​​the mixing shell (1). The secondary stirring scraper (32) is fixedly set on the secondary rotating shaft (31). A material distribution assembly is provided on the mixing shell (1). The material distribution assembly includes an L-shaped dispersing tube (7). A hinge seat (62) is provided at the bottom of the L-shaped dispersing tube (7). A dispersing head (6) is rotatably provided on the hinge seat (62). A flexible hose (63) is provided between the dispersing head (6) and the L-shaped dispersing tube (7). The rotational movement of the main stirring arm (22) abuts against the dispersing head (6) and performs periodic reciprocating oscillation.

2. The apparatus for preparing a soil-improving composition for grain and oil crops according to claim 1, characterized in that: The L-shaped dispersion tube (7) is fixed on the feed inlet (11), with one end extending downward into the mixing shell (1) and the other end connected to the external slurry supply system.

3. The apparatus for preparing a soil-improving composition for grain and oil crops according to claim 1, characterized in that: The dispersing head (6) has a hollow arc structure and a through hole (61) on its surface.

4. The apparatus for preparing a soil-improving composition for grain and oil crops according to claim 1, characterized in that: The transmission assembly (3) is located outside the hybrid housing (1) and is used to transmit the rotational motion of the main shaft (21) to the auxiliary shaft (31) and drive the auxiliary shaft (31) to rotate synchronously with the main shaft (21).

5. The apparatus for preparing a soil-improving composition for grain and oil crops according to claim 1, characterized in that: The transmission assembly (3) includes a drive pulley fixedly mounted on the main shaft (21), a driven pulley fixedly mounted on the auxiliary shaft (31), and a belt that is simultaneously connected to the drive pulley and the driven pulley.

6. The apparatus for preparing a soil-improving composition for grain and oil crops according to claim 1, characterized in that: Multiple main stirring arms (22) are staggered along the axial direction of the main rotating shaft (21), and multiple auxiliary stirring scrapers (32) are staggered along the axial direction of the auxiliary rotating shaft (31). The ends of the auxiliary stirring scrapers (32) are adapted to the U-shaped bottom inner wall shape of the mixing shell (1) and maintain a gap.

7. The apparatus for preparing a soil-improving composition for grain and oil crops according to claim 1, characterized in that: The double-layer jacket (14) is provided with a cooling medium inlet (15) and a cooling medium outlet (16). The hybrid shell (1) is a hollow structure, and the inner wall of the hollow structure is provided with a heat insulation layer.

8. The apparatus for preparing a soil-improving composition for grain and oil crops according to claim 1, characterized in that: The bottom of the mixing shell (1) is provided with a discharge port (12), the drive motor (2) is fixed by a support frame (13), the support frame (13) is fixed at one end of the mixing shell (1), and a discharge valve is provided on the discharge port (12).

9. The apparatus for preparing a soil-improving composition for grain and oil crops according to claim 1, characterized in that: The sealed feeding door (5) is provided with a transparent observation window (51), and its edge is fitted with an inflatable and deflated sealing ring (52).

10. A soil-improving composition for grain and oil crops, characterized in that: The soil-improving composition comprises, by weight percentage, 35%-45% modified zeolite powder, 15%-20% diatomaceous earth, 20%-30% humic acid concentrate, 8%-12% seaweed extract gel, 5%-8% biochar powder, 1%-2% compound probiotic carrier powder, and 0.5%-1% trace element chelate. The soil-improving composition is used in the preparation apparatus for the soil-improving composition for grain and oil crops as described in any one of claims 1-9.