CN109348763B - High-temperature soil sterilizer - Google Patents
High-temperature soil sterilizer Download PDFInfo
- Publication number
- CN109348763B CN109348763B CN201811416193.3A CN201811416193A CN109348763B CN 109348763 B CN109348763 B CN 109348763B CN 201811416193 A CN201811416193 A CN 201811416193A CN 109348763 B CN109348763 B CN 109348763B
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- Prior art keywords
- soil
- air
- rotary tillage
- granules
- combustion
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B77/00—Machines for lifting and treating soil
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/02—Combined machines with two or more soil-working tools of different kind
- A01B49/022—Combined machines with two or more soil-working tools of different kind at least one tool being actively driven
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/02—Combined machines with two or more soil-working tools of different kind
- A01B49/027—Combined machines with two or more soil-working tools of different kind with a rotating, soil working support element, e.g. a roller
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention relates to a high-temperature soil disinfection machine, and belongs to the technical field of agricultural machinery. The sterilizer comprises a soil cutting device and a combustion device; the soil cutting device comprises a rotary tillage mechanism and a soil crushing mechanism which are arranged in front and back, and the combustion device is composed of a combustor for supplying gas to a gas tank; when the rotary cultivator is used, the rotary cultivator sends out soil granules upwards, the soil crushing mechanism cuts the soil granules thrown out by the rotary cultivator, and the flame jet orifice of the burner faces the soil granules thrown out by the rotary cultivator. The sterilizer can instantly burn flame at high temperature to sterilize and kill insects, remove diseases and insect pests, weeds, organic pesticides and the like, and improve the soil sterilization effect.
Description
Technical Field
The invention relates to a high-temperature soil disinfection machine, and belongs to the technical field of agricultural machinery.
Background
The accumulation of pathogenic microorganisms in soil can cause continuous cropping obstacles, so that the yield and the quality of crops are reduced, and the continuous cropping obstacles are widely existed in the crop cultivation process. Soil-borne diseases are a very harmful plant disease, and often cause death of plants in pieces. The pathogenic organisms causing soil-borne diseases are various in types, including fungi, bacteria, nematodes, viruses and the like, wherein the fungi are the main ones. How to disinfect soil and overcome continuous cropping obstacles is a worldwide problem to be solved urgently, and the existing preventive measure technology mainly comprises technical methods such as agricultural measures, chemical methods, physical methods, biotechnology, comprehensive control and the like. The physical method usually utilizes medium-high temperature to kill pathogenic organisms, mainly comprises modes of steam disinfection, flame disinfection, electric disinfection, microwave disinfection and the like, wherein the flame disinfection utilizes the high temperature of flame to lead protein in organisms to generate irreversible denaturation, thereby achieving the purpose of killing cells and organisms. However, when the existing soil high-temperature flame disinfection machine works, the residence time of soil granules in a high-temperature area is short, the ventilation of a disinfection bin is poor, the flame combustion is insufficient, and the utilization rate of fuel gas is reduced.
Disclosure of Invention
The invention aims to solve the technical problems that: provides a soil high-temperature flame disinfection machine with good disinfection effect.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a high-temperature soil sterilizer comprises a combustion bin, a combustion device, a soil cutting device driven by an engine and positioned in the combustion bin, and a blast device for providing air for the combustion bin, wherein an air outlet is formed in the upper surface of a bin body of the combustion bin; the soil cutting device comprises a rotary tillage mechanism and a soil crushing mechanism which are arranged in front and back, and the combustion device is composed of a combustor for supplying gas to a gas tank; when the rotary cultivator is used, the rotary cultivator sends out soil granules upwards, the soil crushing mechanism cuts the soil granules thrown out by the rotary cultivator, and the flame jet orifice of the burner faces the soil granules thrown out by the rotary cultivator.
According to the invention, the soil granules are upwards sent out through the reverse rotation of the rotary tillage mechanism, the soil granules collide with the soil crushing mechanism repeatedly back and forth through the double-shaft reverse rotation to prolong the retention time, namely the retention time of the soil granules in a high-temperature sterilization area is prolonged, the contact time of flame and soil is increased, the soil sterilization and disinfection effect is enhanced, meanwhile, the soil crushing mechanism rotates forwards to cut the soil thrown out by the rotary tillage mechanism, the size of the soil granules is further reduced, the burner is used for jetting flame to the soil granules to heat air and burn the soil granules for disinfection, the flame is instantly burned at high temperature for sterilization and disinsection, insect pests, weeds, organic pesticides and the like can be eliminated, and the soil disinfection effect is improved. In addition, the combustion chamber can form a relatively closed disinfection space, so that the air temperature in the combustion chamber is increased, and the disinfection effect is further improved. Preferably, at least two burners are provided.
When the invention is used, in order to obtain a homogeneous turbulent high-heat airflow field, the wind speed of the air outlet is changed according to the walking speed. Preferably, the position and the aperture of the air outlet are preset values, the preset values are obtained by performing simulation calculation on airflow and a heat flow field in the combustion chamber by a CFD (computational fluid dynamics) method so as to form a homogeneous turbulent flow high-heat airflow field in the combustion chamber, and the optimized combustion chamber space flow field can find a balance point between heat preservation and better oxygen supply.
Drawings
The invention will be further explained with reference to the drawings.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals: 1 rotary tillage mechanism, 2 gearboxes, 3 water circulation heating devices, 4 gas tanks, 5 gas pipes, 6 air blast devices, 7 burners, 8 combustion bins, 9 air outlets and 10 soil crushing mechanisms.
Detailed Description
Example one
The high-temperature soil disinfection machine of this embodiment adopts ordinary three-point suspension to link with power machinery, equips compactly, weight is moderate, matches with small tractor, can be in the operation of warmhouse booth.
As shown in fig. 1, the disinfection machine comprises a combustion chamber 8, combustion means, soil cutting means driven by a motor (not shown in the figure) and located in the combustion chamber 8, and blowing means 6 for supplying air to the combustion chamber.
Soil cutting device contains rotary tillage mechanism 1 and the hack mechanism 10 of arranging around, burner 7 by the gas jar 4 air feed constitutes, and gas jar 4 is connected through trachea 5 with burner 7, gas jar 4 and trachea 5 are used for providing the combustible energy to burner 7.
The rotary tillage mechanism 1 and the soil crushing mechanism 10 are arranged in the combustion bin 8. The combustion chamber 8 forms a relatively closed disinfection space, which can increase the air temperature in the combustion chamber 8, further improving the disinfection effect. Usually, a plurality of burners 7 can be arranged on one combustion chamber 8, and the design of the combustion chamber 8 is beneficial to full combustion and energy conservation.
The air blowing device 6 is used for providing air for the combustion chamber 8, and an air outlet 9 is arranged on the upper surface of the combustion chamber 8. The blower 6 is driven by the gear box 2, the rotating speed of the fan of the blower is changed according to the traveling speed of the sterilizer, oxygen is provided for the combustion chamber, and an exhaust flue is formed between the blower 6 and the exhaust port 9. The air exhaust flue can form a high-heat turbulence air flow field and penetrates through the soil thin layer, so that the contact time of flame and soil is prolonged, and the soil sterilization and disinfection effects are enhanced. When the device is used, the rotary tillage mechanism 1 sends out soil granules upwards, the retention time of soil particles in a high-temperature disinfection area is prolonged, the contact time of flame and soil is prolonged, the soil granules thrown out by the rotary tillage mechanism 1 are cut by the soil crushing mechanism 10, the size of the soil particles can be reduced, and the flame jet orifice of the burner 7 faces the soil granules thrown out by the rotary tillage mechanism, so that air is heated and the soil granules are burned for disinfection.
The high-temperature soil sterilizer of the embodiment mainly comprises two parts: the soil rotating part and the heating part are combined to carry out integrated operation. The soil rotating part in the front extracts soil with a certain depth through rotary tillage, and is thrown to the rear heating part in a thin layer mode to carry out instantaneous high-temperature combustion flame sterilization and disinsection, and remove diseases and insect pests, weeds and organic pesticides.
The embodiment can be further modified as follows: the position and the aperture of the air outlet 9, the position of the blower 6 and the size of the ventilation opening are preset values, the preset values are obtained by performing simulation calculation on the air flow and the heat flow field in the combustion chamber 8 by a CFD (computational fluid dynamics) method to form a homogeneous turbulent high-heat air flow field in the combustion chamber 8, wherein the simulation calculation on the air flow and the heat flow field in the combustion chamber 8 to form a homogeneous turbulent high-heat air flow field in the combustion chamber 8 is the prior art and is not described again.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the invention.
Claims (3)
1. A high temperature soil sterilizing machine which is characterized in that: the soil cutting device is driven by an engine and positioned in the combustion bin, and the air blowing device is used for providing air for the combustion bin; the soil cutting device comprises a rotary tillage mechanism and a soil crushing mechanism which are arranged in front and back, and the combustion device is composed of a combustor for supplying gas to a gas tank; when the device is used, the rotary tillage mechanism reversely rotates to upwards send out soil granules, the soil crushing mechanism positively rotates to cut the soil granules thrown out by the rotary tillage mechanism, the flame jet orifice of the burner faces the soil granules thrown out by the rotary tillage mechanism, and the air exhaust flue forms a turbulent air flow field.
2. A hot soil sanitizer according to claim 1, wherein: the number of the burners is at least two.
3. A hot soil sanitizer according to claim 1, wherein: the position and the aperture of the air outlet, the position of the air blowing device and the size of the air vent are preset values, and the preset values are obtained by performing simulation calculation on airflow and a heat flow field in the combustion chamber by a CFD (computational fluid dynamics) method so as to form a homogeneous turbulent flow high-heat airflow field in the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416193.3A CN109348763B (en) | 2018-11-26 | 2018-11-26 | High-temperature soil sterilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416193.3A CN109348763B (en) | 2018-11-26 | 2018-11-26 | High-temperature soil sterilizer |
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| Publication Number | Publication Date |
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| CN109348763A CN109348763A (en) | 2019-02-19 |
| CN109348763B true CN109348763B (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811416193.3A Active CN109348763B (en) | 2018-11-26 | 2018-11-26 | High-temperature soil sterilizer |
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| CN110915336A (en) * | 2019-05-29 | 2020-03-27 | 雷学军 | Ecological system treatment method |
| CN110354284A (en) * | 2019-08-13 | 2019-10-22 | 广西壮族自治区农业科学院 | A kind of soil flame sterilizing equipment decontaminating apparatus and sterilization method |
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| CN116584188B (en) * | 2023-06-29 | 2024-03-26 | 农业农村部南京农业机械化研究所 | Multi-stage flame type high-temperature inactivation mechanism for returning straw to field |
| CN116569684B (en) * | 2023-06-29 | 2024-03-12 | 农业农村部南京农业机械化研究所 | Straw returning forced Chu Wen type soil flame instantaneous inactivation equipment |
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