CN116584188A - Multi-stage flame type high-temperature inactivation mechanism for returning straw to field - Google Patents
Multi-stage flame type high-temperature inactivation mechanism for returning straw to field Download PDFInfo
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- CN116584188A CN116584188A CN202310781569.5A CN202310781569A CN116584188A CN 116584188 A CN116584188 A CN 116584188A CN 202310781569 A CN202310781569 A CN 202310781569A CN 116584188 A CN116584188 A CN 116584188A
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- 230000002779 inactivation Effects 0.000 title claims abstract description 51
- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 239000010902 straw Substances 0.000 title claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 claims abstract description 142
- 239000002689 soil Substances 0.000 claims abstract description 84
- 238000003971 tillage Methods 0.000 claims abstract description 59
- 238000005338 heat storage Methods 0.000 claims abstract description 43
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 30
- 239000001301 oxygen Substances 0.000 claims description 30
- 229910052760 oxygen Inorganic materials 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 abstract description 18
- 239000002344 surface layer Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 6
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 244000052769 pathogen Species 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000001717 pathogenic effect Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000009335 monocropping Methods 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000244206 Nematoda Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009418 agronomic effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- -1 ganic Species 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 238000004321 preservation Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
Abstract
The application discloses a multi-stage flame type high-temperature inactivation mechanism for returning straws to fields, which comprises a rotary tillage mechanism, wherein a combustion bin is arranged at the rear part of the rotary tillage mechanism, and a throwing combustion device is arranged in the combustion bin; the rear of the combustion bin is communicated with a heat storage bin, the height of the top of the Chu Wencang bin is lower than that of the combustion bin, and the length of the heat storage bin is at least twice that of the combustion bin; the middle part of Chu Wencang is provided with a temperature-raising combustion device, the nozzle height of the temperature-raising combustion device is lower than that of the throwing combustion device, and the included angle between the temperature-raising combustion device and the ground is smaller than that between the throwing combustion device and the ground. The device can realize twice flame inactivation through the front and rear groups of combustion nozzles, and can effectively improve the sterilization effect of the soil inside and the surface layer; meanwhile, chu Wencang is additionally arranged at the rear part, so that high-temperature heat generated by twice flame inactivation is continuously accumulated, and high-temperature sterilization treatment can be fully performed on the soil inside.
Description
Technical Field
The application relates to high-temperature inactivation equipment, in particular to a multi-stage flame type high-temperature inactivation mechanism for returning straws to fields.
Background
The accumulation of pathogenic microorganisms in the soil can cause continuous cropping obstacles to occur, which results in reduced crop yield and quality, and is widely present in the crop cultivation process. Soil-borne diseases are a type of plant disease that is extremely dangerous, often causing plant sheeting death. The pathogenic organisms causing soil-borne diseases are of many kinds, including fungi, bacteria, nematodes, viruses, etc., and fungi are the main. How to disinfect soil and overcome continuous cropping obstacle is a worldwide difficult problem to be solved urgently, and the existing preventive measure technology mainly comprises technical methods such as agronomic measures, chemical methods, physical methods, biotechnology, comprehensive control and the like. The physical method generally utilizes medium and high temperature to kill pathogenic organisms, mainly adopts modes of steam sterilization, flame sterilization, electric sterilization, microwave sterilization and the like, and the flame sterilization utilizes high temperature of flame to irreversibly denature proteins in organisms, so as to achieve the aim of killing cells and organisms.
The prior art has the patent number CN109348763B discloses a high-temperature soil sterilizer, which comprises a soil cutting device and a combustion device, wherein the soil cutting device comprises a rotary tillage mechanism and a soil crushing mechanism which are arranged front and back, and the combustion device is formed by a burner for gas supply of a gas tank; when the rotary tillage machine is used, the rotary tillage mechanism sends out soil granules upwards, the soil crushing mechanism cuts the soil granules raised by the rotary tillage mechanism, and the flame jet opening of the burner faces the soil granules raised by the rotary tillage mechanism. The sterilizer can instantaneously sterilize and kill insects by high-temperature combustion flame, remove diseases and insect pests, weeds, organic pesticides and the like, and improve the soil sterilization effect. But this mechanism has the following problems: the device is provided with the blast device and the air outlet, the blast device supplies air to the combustion bin, the air blows into the combustion bin, the heat after combustion is discharged from the air outlet, a large amount of heat generated in the flame is discharged rapidly through the air outlet, the heat cannot be stored in the combustion bin, heat dissipation can be caused, after the flame contacts with the soil, the soil flowing through the flow is sterilized, but the soil which is not contacted with the flame cannot achieve a good sterilizing effect, and the dissipated high-temperature heat cannot sterilize and disinfect the soil, so that the device can only achieve the sterilizing effect contacting with the flame, but cannot achieve the sterilizing effect of high-temperature maintenance, and the heat utilization rate is low.
Disclosure of Invention
The application aims to solve the technical problem of providing the straw returning multi-stage flame type high-temperature inactivation mechanism which is reasonable in design and can effectively utilize high-temperature heat generated by flame to realize sterilization.
In order to solve the technical problems, the technical scheme of the application is as follows: the straw returning multi-stage flame type high-temperature inactivation mechanism comprises a rotary tillage mechanism, wherein a combustion bin is arranged at the rear of the rotary tillage mechanism, a throwing combustion device is arranged in the combustion bin, the throwing combustion device is obliquely arranged in a throwing area at the rear of the rotary tillage mechanism, and the combustion width of the throwing combustion device corresponds to the rotary tillage width of the rotary tillage mechanism; a heat storage bin is communicated with the rear of the combustion bin, the height of the top of the heat storage bin is lower than that of the combustion bin, and the length of the heat storage bin is at least twice that of the combustion bin; the middle part of the heat storage bin is provided with a temperature-raising combustion device which is obliquely arranged backwards, the combustion width of the temperature-raising combustion device corresponds to the rotary tillage width of the rotary tillage mechanism, the nozzle height of the temperature-raising combustion device is lower than the nozzle height of the throwing combustion device, and the included angle between the temperature-raising combustion device and the ground is smaller than the included angle between the throwing combustion device and the ground; during operation, the rotary tillage mechanism throws soil to the upper rear side, the flame injection port of the throwing combustion device performs primary sterilization and disinfection towards the thrown soil, the backwardly thrown soil forms a backwardly moving boosting airflow to push the flame of the throwing combustion device to diffuse backwardly, the contact area between the flame injection port and the thrown soil particles is increased, the preliminary flame inactivation is performed on the soil in the throwing process, the generated heat is stored in the combustion bin and the heat storage bin, and the preliminary high-temperature inactivation is performed on the soil flowing through the combustion bin and the heat storage bin;
s2, performing secondary flame inactivation on the earth surface soil by the temperature-raising combustion device, wherein the contact distance between the flame and the earth surface soil is increased by the temperature-raising combustion device positioned at a low position; and the high-temperature heat generated by the throwing combustion device and the temperature raising combustion device is stored in the Chu Wencang, the low-level heat storage bin forces the high-temperature heat to sink to contact the surface of the earth surface soil, the contact time between the high-temperature heat and the earth surface soil is increased, and the earth surface of the flowing soil is subjected to secondary high-temperature inactivation.
As the preferable technical scheme, the throwing combustion device comprises a plurality of throwing combustors which are arranged along the rotary tillage width direction of the rotary tillage mechanism, the temperature raising combustion device comprises a plurality of temperature raising combustors which are arranged along the rotary tillage width direction of the rotary tillage mechanism, the nozzle height of the temperature raising combustors is lower than that of the throwing combustors, and the temperature raising combustors and the throwing combustors are arranged in a staggered mode.
As the preferable technical scheme, the throwing burner comprises a throwing combustion nozzle, a throwing oxygen supply pipe is arranged on the outer cover of the throwing combustion nozzle, the lower part of the throwing oxygen supply pipe obliquely stretches into the combustion bin, and a throwing oxygen supply hole communicated with the inside of the throwing oxygen supply pipe is arranged on the upper part of the throwing oxygen supply pipe outside the combustion bin.
As the preferable technical scheme, the temperature-raising burner comprises a temperature-raising combustion nozzle, a temperature-raising combustion nozzle outer cover is provided with a temperature-raising Wen Gongyang pipe, the lower part of the temperature-raising oxygen pipe obliquely stretches into the temperature storage bin, and a Wen Gongyang hole communicated with the inside of the temperature-raising oxygen pipe is arranged outside the temperature storage bin at the upper part of the temperature-raising oxygen pipe.
As the preferable technical scheme, the heat storage bin is of a flat structure with the front end and the lower end being opened, the top wall of the heat storage bin is obliquely arranged towards the rear lower side, the two side walls of the heat storage bin are vertically arranged, and the rear wall of the heat storage bin is hinged.
Due to the adoption of the technical scheme, the application has the beneficial effects that: the device can realize twice flame inactivation through the front and rear groups of combustion nozzles, the first flame inactivation mainly carries out flame inactivation on the thrown soil, the second flame inactivation mainly carries out flame inactivation on the soil on the surface layer of the ground, and the sterilization effect of the soil inside and the surface layer can be effectively improved through twice flame treatment; meanwhile, the heat storage bin is additionally arranged at the rear, and the heat storage bin is of a flat structure with a long length, so that high-temperature heat generated by twice flame inactivation is accumulated in the heat storage bin, a high-temperature environment with the temperature of 600 ℃ can be provided, the high-temperature environment can be continuously maintained, high-temperature sterilization treatment can be fully performed on the soil in the heat storage bin, the heat utilization rate is high, and a good inactivation effect is realized.
Drawings
The following drawings are only for purposes of illustration and explanation of the present application and are not intended to limit the scope of the application. Wherein:
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present application;
FIG. 3 is a diagram showing a dislocation arrangement between the throwing combustion device and the temperature raising combustion device according to the embodiment of the application;
FIG. 4 is a schematic view of a structure of a dispensing combustion apparatus according to an embodiment of the present application;
in the figure: 100-a rotary tillage mechanism; 200-combustion bin; 300-scattering the combustion device; 301-casting a combustion nozzle; 302, sprinkling an oxygen supply pipe; 303-sprinkling oxygen supply holes; 400-Chu Wencang; 500-temperature raising combustion device.
Detailed Description
The application is further illustrated in the following, in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present application are described by way of illustration only. It is needless to say that the person skilled in the art realizes that the described embodiments may be modified in various different ways without departing from the spirit and scope of the application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive in scope.
As shown in fig. 1 and 2, the straw returning multi-stage flame type high-temperature inactivation mechanism comprises a rotary tillage mechanism 100, wherein a combustion bin 200 is arranged at the rear of the rotary tillage mechanism 100, a throwing combustion device 300 is arranged in the combustion bin 200, the throwing combustion device 300 is obliquely arranged in a throwing area at the rear of the rotary tillage mechanism 100, and the combustion width of the throwing combustion device 300 corresponds to the rotary tillage width of the rotary tillage mechanism 100; a heat storage bin 400 is communicated with the rear of the combustion bin 200, the height of the top of the heat storage bin 400 is lower than that of the top of the combustion bin 200, and the length of the heat storage bin 400 is at least twice that of the combustion bin 200; the middle part of the heat storage bin 400 is provided with a temperature raising combustion device 500 which is obliquely arranged backwards, the combustion width of the temperature raising combustion device 500 corresponds to the rotary tillage width of the rotary tillage mechanism 100, the nozzle height of the temperature raising combustion device 500 is lower than the nozzle height of the throwing combustion device 300, and the included angle between the temperature raising combustion device 500 and the ground is smaller than the included angle between the throwing combustion device 300 and the ground.
In this embodiment, the rotary tillage mechanism 100 is improved on the basis of the traditional stubble cleaner, the radial dimension of the rotary tillage shaft is reduced, meanwhile, rotary tillage blades with small turning radius are selected, the number of the cutters is increased, the soil fineness of the soil layer with 0cm to 5cm can be improved, and the environment is created for subsequent flame high-temperature treatment.
The throwing combustion device 300 is obliquely arranged at the rear of the rotary tillage mechanism 100, so that the sprayed flame is not in direct contact with the rotary tillage shaft and the rotary tillage blade, and the overhigh temperature of the rotary tillage shaft and the rotary tillage blade can be avoided. If flame and rotary tillage axle and rotary blade direct contact, then rotary tillage axle and rotary blade temperature can rise, and simultaneously both will the temperature transfer to the bearing on, can cause the bearing temperature to rise, can exceed 200 ℃ when serious (in the in-service use process, bearing temperature should not exceed 75 ℃), and the bearing temperature once too high can cause the material expansion, leads to mechanical clearance to diminish and noise and mechanical damage appear, can directly fracture when serious, directly influences the tool life. Meanwhile, the soil in the front spray head working area is in a descending stage, the backwards-thrown soil forms a backwards-moving boosting airflow, air moves backwards to push flame of the throwing combustion device 300 to diffuse backwards, the possibility that the flame is in direct contact with a rotary tillage shaft and a rotary tillage blade is reduced, meanwhile, the flame is in a turbulent state, in the backward diffusion process, the contact area between the flame and the thrown soil particles is increased, the soil particles in the throwing process in the whole area are instantaneously heated, preliminary flame inactivation is realized, moisture evaporation on the surface of the soil particles is increased, part of bacteria are inactivated, and in addition, heat generated in the process is stored in the combustion bin 200 and the heat storage bin 400, and the flowing soil is dried and sterilized at a high temperature, so that the preliminary high-temperature inactivation is realized.
The combustion chamber 200 in this embodiment mainly provides space for soil to be thrown, so as to increase the contact area between the flame and the thrown soil; the heat storage bin 400 is mainly used for storing high heat generated by flame and further performing sterilization treatment on the soil surface layer; because the hot air has the characteristic of floating upward, in order to make the high-temperature heat directly contact with the soil surface layer as far as possible, the height of the top of the heat storage bin 400 is lower than that of the combustion bin 200, so as to form a flat structure capable of being attached to the ground, at the moment, the high-temperature heat can be forced to sink by the top surface to contact with the surface of the soil, the generated heat can enter into the space between the soil, the contact area between the high-temperature heat and the surface soil is increased, and in order to fully utilize the generated high-temperature heat, the operation time of strains can be increased, so that the length of the heat storage bin 400 is at least twice that of the combustion bin 200, the retention time of the internal high-temperature heat is longer, the contact time between the high-temperature heat and the surface soil is increased, and the contact area and the contact time between the high-temperature heat and the soil are increased through the design of the longer flat structure, so that the high-temperature heat is fully utilized, the heat utilization rate is improved, and a better inactivation effect is achieved.
The inner wall of the thermal storage bin 400 is provided with a heat insulation layer, so that the heat dissipation of flame temperature can be reduced.
The middle part of the thermal storage bin 400 is provided with a temperature raising combustion device 500 which is obliquely arranged backwards and can inactivate flame on soil again, and in order to enable the flame to enter the soil surface, the nozzle height of the temperature raising combustion device 500 is lower than that of the throwing combustion device 300, and by reducing the nozzle height, the flame is closer to the soil, and at the moment, the flame in a turbulent state can contact and enter the soil with large pores after rotary tillage, so that the inactivation area is increased; the temperature raising combustion device 500 and the throwing combustion device 300 are arranged in the same direction in an inclined manner, at this time, the tail end of the flame generated by the front throwing combustion device 300 can be connected with the head end of the flame generated by the rear temperature raising combustion device 500, so that the spraying length of the flame is generally increased, and in order to further increase the contact angle between the soil and the flame, at this time, the included angle between the temperature raising combustion device 500 and the ground is smaller than the included angle between the throwing combustion device 300 and the ground, repeated spraying of the flame to the same soil is avoided as much as possible, and more soil can be sterilized.
Referring to fig. 2 and 3, the sprinkling combustion apparatus 300 includes a plurality of sprinkling burners arranged in a rotary tillage width direction of the rotary tillage mechanism 100, and flames formed between adjacent sprinkling burners overlap to avoid omission; the temperature-raising combustion device 500 comprises a plurality of temperature-raising burners arranged along the rotary tillage width direction of the rotary tillage mechanism 100, flames formed between adjacent temperature-raising burners overlap, omission is avoided, the nozzle height of the temperature-raising burners is lower than that of the throwing burners, the temperature-raising burners and the throwing burners are arranged in a staggered manner, flame injection uniformity can be integrally improved in a staggered manner, and local high temperature or local low temperature is avoided. The throwing burner and the temperature raising burner are both used for providing gas fuel through a liquid supply tank and a liquid supply pipe.
Referring to fig. 4, the throwing burner comprises a throwing combustion nozzle 301, a throwing oxygen supply pipe 302 is covered on the outer cover of the throwing combustion nozzle 301, the lower part of the throwing oxygen supply pipe 302 obliquely stretches into the combustion bin 200, and a throwing oxygen supply hole 303 communicated with the inside of the throwing oxygen supply pipe 302 is arranged on the upper part of the throwing oxygen supply pipe 302 outside the combustion bin 200. When in use, air can enter the throwing oxygen supply pipe 302 through the throwing oxygen supply hole 303 so as to provide oxygen for the throwing combustion nozzle 301, or air can be forced to be blown into the throwing combustion nozzle 301 through the throwing oxygen supply hole 303 by a fan, so that combustion supporting is realized, and insufficient combustion is avoided.
The structure of the temperature-raising burner is the same as that of the throwing burner, the temperature-raising burner comprises a temperature-raising combustion nozzle, a Wen Gongyang pipe is covered on the temperature-raising combustion nozzle, the lower part of the temperature-raising oxygen supply pipe obliquely stretches into the temperature storage bin 400, and Wen Gongyang holes communicated with the inside of the temperature-raising oxygen supply pipe are arranged on the upper part of the temperature-raising oxygen supply pipe outside the temperature storage bin 400.
Referring to fig. 2, the thermal storage bin 400 is a flat structure with an open front end and a lower end, the top wall of the thermal storage bin 400 is inclined towards the rear lower side, two side walls of the thermal storage bin 400 are vertically arranged, the rear wall of the thermal storage bin 400 is hinged, the rear wall of the thermal storage bin 400 is naturally hinged, and can naturally swing to open and close along with the movement of a machine tool, so that the purpose of plugging is achieved, the purpose of incomplete plugging is achieved, the functions of smoke discharging and pressure relief are achieved, and the internal pressure is prevented from being too large.
The flame high-temperature inactivation treatment method adopting the straw returning multi-stage flame type high-temperature inactivation mechanism comprises the following steps:
s1, during operation, the rotary tillage mechanism 100 throws soil upwards and backwards, the flame injection port of the throwing combustion device 300 performs primary sterilization and disinfection towards the thrown soil, the backwards thrown soil forms a backward-moving boosting airflow to push the flame of the throwing combustion device 300 to spread backwards, the contact area between the flame injection port and the thrown soil particles is increased, the primary flame inactivation is performed on the soil in the throwing process, the generated heat is stored in the combustion bin 200 and the heat storage bin 400, and the primary high-temperature inactivation is performed on the soil flowing through the combustion bin;
s2, performing secondary flame inactivation on the surface soil by the temperature-raising combustion device 500, wherein the contact distance between the flame and the surface soil is increased by the temperature-raising combustion device 500 positioned at a low position; the high-temperature heat generated by the throwing combustion device 300 and the temperature raising combustion device 500 is stored in the Chu Wencang, the low-level heat storage bin 400 forces the high-temperature heat to sink to contact the surface of the earth surface soil, the contact time between the high-temperature heat and the earth surface soil is increased, and the earth surface through which the high-temperature heat flows is subjected to secondary high-temperature inactivation.
The device can realize twice flame inactivation through the front and rear groups of combustion nozzles, the first flame inactivation mainly carries out flame inactivation on the thrown soil, the second flame inactivation mainly carries out flame inactivation on the soil on the surface layer of the ground, and the sterilization effect of the soil inside and the surface layer can be effectively improved through twice flame treatment; meanwhile, the heat storage bin 400 is additionally arranged at the rear, and the heat storage bin is of a flat structure with a long length, so that high-temperature heat generated by twice flame inactivation is accumulated in the heat storage bin, a high-temperature environment with the temperature of 600 ℃ can be provided, the high-temperature environment can be continuously maintained, high-temperature sterilization treatment can be fully performed on the soil in the heat storage bin, the heat utilization rate is high, and a good inactivation effect is realized.
A field test shows that the rotary tillage mechanism 100 of the device can throw soil with the tillage depth of 10cm to an instantaneous high-temperature chamber of Chu Wencang 400 at the rear in a thin layer mode, the temperature of the soil with the inner surface layer of 3cm in 1-2s reaches 600 ℃ in a flat and physical heat preservation mode of the heat storage bin 400, more than 85% of diseases, insects and germs can be killed, and organic chemical pollutants can be effectively removed. While the large Tian Miehuo equipment disclosed by the application does not appear in the current industry, although an inactivation mode for directly carrying out flaming treatment on the ground surface exists at present, pathogen on the ground surface is treated only, pathogen on a crop planting layer cannot be killed, and the crop planting layer with the surface layer of about 3cm can be killed through the inactivation sterilizing cover, so that the crop yield and quality can be greatly improved, the method is the first innovative design in the current field inactivation equipment, and the soil inactivation is maximized for treating the pathogen on the crop planting layer with the surface layer of about 3cm from the aspects of operation efficiency and operation cost.
The foregoing has shown and described the basic principles, main features and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made without departing from the spirit and scope of the application, which is defined in the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a multistage flame formula high temperature inactivation mechanism of straw returning, includes rotary tillage mechanism, rotary tillage mechanism's rear is equipped with the combustion chamber, be equipped with in the combustion chamber and throw burner, its characterized in that: the throwing combustion device is obliquely arranged in a throwing area behind the rotary tillage mechanism, and the combustion width of the throwing combustion device corresponds to the rotary tillage width of the rotary tillage mechanism; a heat storage bin is communicated with the rear of the combustion bin, the height of the top of the heat storage bin is lower than that of the combustion bin, and the length of the heat storage bin is at least twice that of the combustion bin; the middle part of the heat storage bin is provided with a temperature-raising combustion device which is obliquely arranged backwards, the combustion width of the temperature-raising combustion device corresponds to the rotary tillage width of the rotary tillage mechanism, the nozzle height of the temperature-raising combustion device is lower than the nozzle height of the throwing combustion device, and the included angle between the temperature-raising combustion device and the ground is smaller than the included angle between the throwing combustion device and the ground;
during operation, the rotary tillage mechanism throws soil to the upper rear side, the flame injection port of the throwing combustion device performs primary sterilization and disinfection towards the thrown soil, the backwardly thrown soil forms a backwardly moving boosting airflow to push the flame of the throwing combustion device to diffuse backwardly, the contact area between the flame injection port and the thrown soil particles is increased, the preliminary flame inactivation is performed on the soil in the throwing process, the generated heat is stored in the combustion bin and the heat storage bin, and the preliminary high-temperature inactivation is performed on the soil flowing through the combustion bin and the heat storage bin;
the temperature-raising combustion device performs secondary flame inactivation on the earth surface soil, and the contact distance between the flame and the earth surface soil is increased by the temperature-raising combustion device positioned at a low position; and the high-temperature heat generated by the throwing combustion device and the temperature raising combustion device is stored in the Chu Wencang, the low-level heat storage bin forces the high-temperature heat to sink to contact the surface of the earth surface soil, the contact time between the high-temperature heat and the earth surface soil is increased, and the earth surface of the flowing soil is subjected to secondary high-temperature inactivation.
2. The straw returning multi-stage flame type high-temperature inactivation mechanism according to claim 1, wherein: the throwing combustion device comprises a plurality of throwing combustors which are arranged along the rotary tillage width direction of the rotary tillage mechanism, the temperature raising combustion device comprises a plurality of temperature raising combustors which are arranged along the rotary tillage width direction of the rotary tillage mechanism, the nozzle height of the temperature raising combustors is lower than that of the throwing combustors, and the temperature raising combustors and the throwing combustors are arranged in a staggered mode.
3. The straw returning multi-stage flame type high-temperature inactivation mechanism according to claim 2, wherein: the throwing burner comprises a throwing combustion nozzle, a throwing oxygen supply pipe is arranged on the outer cover of the throwing combustion nozzle, the lower part of the throwing oxygen supply pipe obliquely stretches into the combustion bin, and a throwing oxygen supply hole communicated with the inside of the throwing oxygen supply pipe is arranged on the upper part of the throwing oxygen supply pipe outside the combustion bin.
4. The straw returning multi-stage flame type high-temperature inactivation mechanism according to claim 2, wherein: the temperature-raising burner comprises a temperature-raising combustion nozzle, a temperature-raising combustion nozzle outer cover is provided with a temperature-raising Wen Gongyang pipe, the lower part of the temperature-raising oxygen pipe obliquely stretches into the temperature storage bin, and Wen Gongyang holes communicated with the inside of the temperature-raising oxygen pipe are arranged on the upper part of the temperature-raising oxygen pipe outside the temperature storage bin.
5. The straw returning multi-stage flame type high-temperature inactivation mechanism according to claim 1, wherein: the heat storage bin is of a flat structure with the front end and the lower end being opened, the top wall of the heat storage bin is obliquely arranged towards the rear lower side, two side walls of the heat storage bin are vertically arranged, and the rear wall of the heat storage bin is hinged.
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