CN108578719B - Tree pit soil flame disinfection method and disinfection machine - Google Patents
Tree pit soil flame disinfection method and disinfection machine Download PDFInfo
- Publication number
- CN108578719B CN108578719B CN201810377175.2A CN201810377175A CN108578719B CN 108578719 B CN108578719 B CN 108578719B CN 201810377175 A CN201810377175 A CN 201810377175A CN 108578719 B CN108578719 B CN 108578719B
- Authority
- CN
- China
- Prior art keywords
- soil
- auger
- blade
- flame
- blades
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002689 soil Substances 0.000 title claims abstract description 307
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008569 process Effects 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims description 35
- 238000005520 cutting process Methods 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001954 sterilising effect Effects 0.000 abstract description 22
- 238000005553 drilling Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 38
- 230000000694 effects Effects 0.000 description 23
- 239000003345 natural gas Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 11
- 239000003638 chemical reducing agent Substances 0.000 description 11
- 235000013399 edible fruits Nutrition 0.000 description 11
- 239000001301 oxygen Substances 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- 238000004064 recycling Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 8
- 238000010298 pulverizing process Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 230000000249 desinfective effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000004083 survival effect Effects 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 244000144972 livestock Species 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002420 orchard Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 206010059866 Drug resistance Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/04—Machines for making or covering holes for sowing or planting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M17/00—Apparatus for the destruction of vermin in soil or in foodstuffs
- A01M17/002—Injection of toxic gases or fluids into the soil
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/40—Afforestation or reforestation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Soil Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Environmental Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention discloses a tree pit soil flame disinfection method, which comprises the steps of rotating an auger with a sleeve barrel, descending and drilling into soil, performing soil digging operation, crushing, lifting and throwing the soil to the barrel wall for falling through the rotation of an auger helical blade, and enabling the soil to circularly flow in the sleeve barrel along with the continuous lifting of the auger on the soil; spraying flame to the soil circularly flowing in the sleeve barrel for disinfection; stopping spraying flame and lifting the auger after the flame disinfection operation is completed, wherein the auger keeps rotating in the lifting process, and soil falls down to backfill tree holes after being thrown to the wall of the sleeve barrel; and after the soil backfilling is finished, the tree pit soil is disinfected. The invention also discloses a sterilizer for realizing the method. The invention can sterilize the tree planting soil at fixed points and can be stretched into the depth of tree holes required by tree planting for sterilization.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a tree pit soil flame disinfection method and a disinfection machine.
Background
Soil-borne diseases seriously affect the survival rate and the growth and development of various trees, such as newly planted fruit trees, so that the yield of an orchard is reduced, the quality of fruits is poor, and huge economic loss is caused. Before the fruit tree is planted, the problem can be effectively solved by disinfecting the soil in the tree pit. At present, the tree pit soil disinfection operation of the orchard in China is mainly performed by insolation disinfection, namely, soil in the tree pit is dug out manually, and the disinfection of the soil is realized by sunlight insolation; or chemical disinfection, i.e. mixing chemical agent into tree pit soil manually, to achieve the aim of sterilization. However, soil exposure disinfection is time-consuming and laborious, and the disinfection effect is poor; the pesticide residue after chemical disinfection causes secondary pollution to the soil, seriously endangers the health of people and animals, and the perennial pesticide application can cause the pathogen to generate drug resistance, so that the pesticide application amount is increased year by year, and the soil environment is continuously deteriorated.
Some solutions to the soil disinfection problem have been proposed in the prior art. For example, the chinese patent application "soil disinfection and high temperature sterilization and disinsection vehicle (application No. 200710015138.9)" discloses that germs, viruses and pests in soil are killed at high temperature by high temperature emitted from an electric heating device while soil is being rotated. The Chinese patent of the invention, a self-propelled self-adjusting seedling-raising bed soil disinfection device and a self-propelled self-adjusting seedling-raising bed soil disinfection method (application number 2 0140657805.3), disclose that high-temperature steam is adopted to disinfect the bed soil which is smashed by taking up rotary tilling blades.
However, the technology is used for disinfecting the whole soil, the thickness of the soil which can be disinfected by rotary tillage is thinner, the technology is relatively suitable for disinfecting centralized crop soil with shallow root systems and denser planting, and the technology is used for disinfecting the whole soil with longer root systems, developed root systems and sparser planting when the fruit trees are planted just at the beginning, and the disinfection depth of the soil tree holes of single fruit trees is relatively important because the tree holes are deeper, and the disinfection place is relatively less, so that the technology is relatively easy to determine, and if the technology is used for disinfecting the soil depth which is difficult to touch the fruit tree planting, the cost is relatively high when the whole soil planted by the fruit trees is disinfected.
Disclosure of Invention
The invention aims to solve the technical problem of providing a tree pit soil flame disinfection method and a disinfection machine, which can disinfect tree planting soil at fixed points and can disinfect tree pit depth required by tree planting.
In order to solve the technical problems, the flame disinfection method for the tree pit soil provided by the invention comprises the following steps:
(1) The auger with the sleeve barrel rotates and descends to drill into the soil, the soil is excavated, the soil is crushed, lifted and thrown to the wall of the barrel to fall through the rotation of the auger helical blade, and the soil is continuously lifted along with the auger, so that the soil circularly flows in the sleeve barrel;
(2) Spraying flame to the soil circularly flowing in the sleeve barrel for disinfection;
(3) Stopping spraying flame and lifting the auger after the flame disinfection operation is completed, wherein the auger keeps rotating in the lifting process, and soil falls down to backfill tree holes after being thrown to the wall of the sleeve barrel; and after the soil backfilling is finished, the tree pit soil is disinfected.
According to the technical scheme, the auger can be used for realizing fixed-point earth-entering soil-digging operation, so that on one hand, only the soil-digging operation is needed to be accurately carried out on the tree pit sites where trees are to be planted, and the soil-digging operation of the whole soil is not needed, thereby improving the disinfection operation efficiency and realizing large-scale tree pit disinfection; on the other hand, the auger can penetrate into the depth needed by the tree pit and crush, lift and circularly flow the soil, so that the digging operation of deeper soil can be realized, and the soil disinfection device is suitable for soil disinfection of trees with deeper planting depth such as fruit trees. The continuous circulation flow of the soil can be realized through the auger and the sleeve barrel, so that the soil can be uniformly heated by injecting high-temperature flame, more complete disinfection of tree pit soil is realized, and the flame disinfection operation is performed in a relatively closed space formed by the sleeve barrel, so that the disinfection heat is concentrated, the temperature loss is less, the energy utilization rate is high, and the disinfection effect is better. In addition, the technical scheme adopts a flame disinfection mode, uses physical disinfection to replace chemical disinfection (such as using disinfection liquid medicine), avoids secondary pollution, is relatively friendly to the environment, and avoids the influence of chemical disinfection on the health of people and livestock. The technical scheme uses flame disinfection, has high disinfection temperature, can effectively prevent soil-borne diseases, improves soil environment and improves tree survival rate.
In order to solve the technical problems, the tree pit soil flame sterilizer provided by the invention adopts the following technical scheme:
the tree pit soil flame sterilizer comprises a self-propelled chassis, a pit digging and soil breaking backfilling device, a lifting device and a flame sterilizing device, wherein the pit digging and soil breaking backfilling device, the lifting device and the flame sterilizing device are directly or indirectly connected with the chassis or mounted on the chassis; the digging and soil-breaking backfilling device comprises a ground entering auger and a first driving device, wherein the first driving device is used for driving the auger to rotate, the lifting device is used for driving the auger to lift, and a sleeve barrel is arranged on the periphery of the auger; the flame disinfection device comprises an air source and a flame generating device, the air source and the flame generating device are connected through an air transmission pipeline, and the flame generating device is used for spraying flame into the sleeve barrel.
In the technical scheme, when the soil disinfection operation is carried out, the disinfection machine is moved to a place to be operated, and the auger starts to rotate and descend to carry out the soil excavation operation. The soil is crushed, lifted and thrown to the wall of the barrel to fall through the rotation of the screw blades of the screw, and the soil circularly flows in the sleeve barrel along with the continuous rotation, crushing and lifting of the screw. The auger stops descending and keeps rotating after descending to the working depth, the flame disinfection device is started, and the flame generation device generates flame to spray the circularly flowing soil in the sleeve barrel by using the conveyed gas to perform flame disinfection operation. After the disinfection operation is finished, the flame disinfection device is closed, the auger is lifted, the auger keeps rotating in the lifting process, and soil falls down to backfill tree holes after being thrown to the wall of the sleeve barrel; and stopping the auger after the soil backfilling is finished, and completing the disinfection of the tree pit soil. Then the sterilizer is moved to the next operation place, and the above processes are repeated for operation.
The disinfection machine can realize fixed-point earth-entering soil-digging operation by utilizing the auger, so that on one hand, only the soil-digging operation is needed to be accurately carried out on the tree pit sites where trees are to be planted, and the soil-digging operation of the whole soil is not needed, thereby improving the disinfection operation efficiency and realizing large-scale tree pit disinfection; on the other hand, the auger can penetrate into the depth needed by the tree pit and crush, lift and circularly flow the soil, so that the digging operation of deeper soil can be realized, and the soil disinfection device is suitable for soil disinfection of trees with deeper planting depth such as fruit trees. The continuous circulation flow of the soil can be realized through the auger and the sleeve barrel, so that the soil can be heated more uniformly by injecting high-temperature flame, the more complete disinfection of tree pit soil is realized, and the flame disinfection operation is performed in a relatively closed space formed by the sleeve barrel, so that the disinfection heat is concentrated, the temperature loss is less, the energy utilization rate is high, and the disinfection effect is better. In addition, the sterilizer adopts a flame sterilization mode, uses physical sterilization to replace chemical sterilization (such as using sterilizing liquid medicine), avoids secondary pollution, is relatively friendly to the environment, and avoids the influence of chemical sterilization on the health of people and livestock. The technical scheme uses flame disinfection, has high disinfection temperature, can effectively prevent soil-borne diseases, improves soil environment and improves tree survival rate.
As a further improvement of the technical scheme of the invention, the spiral blade on the auger shaft comprises a smoothly connected excavating blade and a crushed soil circulating blade, the excavating blade is closer to the ground entering end of the auger, the pitch of the crushed soil circulating blade and the radius of the blade linearly increase along the direction away from the excavating blade, and the sleeve barrel is provided with a part matched with the crushed soil circulating blade when the auger enters the ground to a specified depth. Because the radius of hack circulating vane linearly increases, and the cover barrel has with hack circulating vane matched with part, therefore can hold, break and circulate and drive more soil for soil after breaking forms bigger area of contact with flame, can disinfect more soil, promotes disinfection efficiency and disinfection effect, even great tree hole also has good disinfection effect.
Further changes of the technical proposal of the inventionFurther, the fixed pitch of the excavating blade is fixed in radius, and the pitch of the crushed soil circulating blade and the blade radius are linearly increased along the direction away from the excavating blade; minimum diameter of the crushed soil circulating bladesEqual to the diameter D of the blade d Minimum pitch of the soil-breaking circulation blades +.>Equal to the pitch P of the blade d . Through this kind of design, on the one hand promoted soil circulation flow disinfection operating efficiency greatly, on the other hand effectively realized the comparatively smooth connection of hack circulation blade and excavation blade, guaranteed the smoothness nature of soil flow. In addition, as the radius of the broken soil circulating blade is gradually increased, the broken soil and flame form a larger contact area, so that the disinfection operation effect is improved, and the disinfection operation efficiency is improved.
As a further improvement of the technical scheme of the invention, the soil crushing blades are arranged on the soil crushing circulating blades, so that the crushing effect on soil is further improved.
As a further improvement of the technical scheme of the invention, the cutting edge curve of the soil breaking blade meets the following conditions:
when D is d When the diameter is less than or equal to 300mm,x≥0；
when 300mm#D d At the time of 480mm, the flow rate was controlled,x≥0；
when D is d When the diameter is more than or equal to 480mm,x≥0；
wherein D is d E=2.72 for the diameter of the earth-moving blade; the blade curve is located in a plane parallel to the axis of the auger shaft, in said planeThe y-axis is parallel to the axis of the auger shaft, the y-axis is forward away from the ground entering direction of the auger, the intersection point of the y-axis and the upper surface of the soil breaking circulation blade is taken as a coordinate origin, the y-axis is taken as a rotation center, the auger shaft is seen from the plane, the y-axis rotates clockwise for 90 degrees to form an x-axis, and the starting point of the blade curve is taken as the coordinate origin; the starting point and the ending point of the cutting edge curve are both positioned on the upper surface of the soil breaking circulation blade, a curved surface formed by stretching the cutting edge curve along the direction perpendicular to the plane and far away from the auger shaft is intersected with the upper surface of the soil breaking circulation blade to form an intersecting line, and a closed curved surface formed by the intersecting line and the curved surface is a soil breaking cutting edge; two planes which respectively pass through two boundary curves of the curved surface non-intersecting line and are parallel to the axis of the auger shaft are cut with the upper surface of the soil crushing circulating blade to form a cutting line, the cutting line and the boundary curves form a soil crushing blade surface, the cutting line and the intersecting line enclose a closed curved surface, and the closed curved surface, the soil crushing blade and the soil crushing blade surface form a soil crushing blade. The design of the cutting edge curve of the soil crushing blade effectively improves the soil crushing rate, so that the soil is fully burnt, and the disinfection effect is obviously improved. The sheet-shaped design of the soil crushing blade avoids the obstruction of the soil crushing blade to the soil flow.
As a further improvement of the technical scheme of the invention, 3 groups of soil crushing blades are arranged on the spiral surface of the soil crushing circulating blade, and each group consists of 2 soil crushing blades; along the auger shaft, looking from the soil crushing circulating blades to the soil digging blades, wherein in each group of soil crushing blades, a straight line where a connecting line of the starting points of the cutting edge curves of 2 soil crushing blades is positioned passes through the axis of the auger shaft; the distance from the point far from the axis of the auger shaft to the axis of the auger shaft in the intersection point of the straight line and the boundary spiral line of the spiral surface on the soil breaking circulation blade is L; the distance from the starting point of the cutting edge curve of the soil crushing blade far away from the auger shaft to the axis of the auger shaft in each group of soil crushing blades is 0.95L, and the distance from the starting point of the cutting edge curve close to the auger shaft to the axis of the auger shaft is 0.65L; the included angle of the straight lines of two adjacent groups of soil breaking blades is 45 degrees; along the auger shaft, the crushed soil blades face of all the crushed soil blades are 65 degrees from the straight line, as seen from the crushed soil circulating blades to the digging blades. The arrangement design of the soil crushing blade sets realizes full and efficient crushing of tree pit soil, and improves the operation efficiency and the disinfection effect.
The auger sleeve comprises an outer sleeve and an inner sleeve, wherein the axis of the outer sleeve coincides with the axis of the auger shaft, the radius of the outer sleeve is the maximum radius of the inner sleeve, the inner sleeve is provided with a part gradually thinned along the direction of entering the auger, the axis of the part coincides with the axis of the auger shaft, the thinning trend of the inner sleeve is matched with the reducing trend of the soil breaking circulating blade, the thick end of the inner sleeve is in sliding fit with the inner wall of the outer sleeve, and the sliding direction is consistent with the direction of the auger shaft. When the disinfection operation is not performed, the inner sleeve barrel can enter the outer sleeve barrel as much as possible through sliding, so that the space occupation is reduced, and the inner sleeve barrel is lifted off the ground, thereby being convenient for the movement of the disinfection machine. When the disinfection operation is carried out, the inner sleeve barrel can be positioned to a proper position through the sliding of the inner sleeve barrel and the outer sleeve barrel, so that the broken soil circulating blade of the auger can be just matched with the lower part of the inner sleeve barrel after the auger enters the ground to a specified operation depth, and the circulating driving effect of the auger on soil and the disinfection operation effect are better ensured. The above design of sleeve and auger for the auger has formed the flow space of soil after lifting when backfilling, easily realizes that soil is got rid of to sleeve wall back whereabouts, is favorable to the disinfection back soil to backfill to the tree hole. The radius of the lower part of the inner sleeve barrel is gradually reduced along the entering direction of the auger, so that the inner sleeve barrel can be matched with the soil breaking circulation blades, the soil can be collected in the soil backfilling process, and the backfilling effect is improved. In addition, the inner sleeve barrel can be positioned to a proper position through the sliding of the inner sleeve barrel relative to the outer sleeve barrel, so that the bottom edge of the inner sleeve barrel can be contacted with the ground under different terrain conditions, and the soil overflow in the operation process is prevented.
As a further improvement of the technical scheme of the invention, the bottom edge of the inner barrel with smaller radius is provided with a saw-tooth structure. In the disinfection process, the bottom edge with smaller radius of the inner sleeve barrel contacts or is immersed into the soil after the inner sleeve barrel is positioned, so that the serrated structure of the edge is beneficial to keeping the stability of the inner sleeve barrel and the outer sleeve barrel, improving the disinfection effect, and the serrated structure is convenient to insert into the soil and prevents the soil from overflowing in the rotation process of the auger. In addition, the saw-tooth edges of the inner sleeve barrel can be contacted with or inserted into the ground under different terrains by sliding the inner sleeve barrel and the outer sleeve barrel, so that the soil is prevented from overflowing in the rotation process of the auger.
As a further improvement of the technical scheme of the invention, the flame disinfection device comprises a plurality of flame spray guns which are circumferentially arranged at the upper end of the sleeve barrel; the spray head of the flame spray gun is cylindrical, and the included angle between the axis of the spray head and the radial section of the auger shaft is 58 degrees; the distance from the projection of the axis of the spray head to the axis of the auger shaft in the radial section of the auger shaft is 0.85D d ，D d Is the diameter of the soil digging blade. The design makes the flame spray gun have good spray positions and angles, so that the sprayed flame can be more fully contacted with the flowing soil, the soil is heated more uniformly, and the disinfection effect is better.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of the present invention.
Fig. 2 is a schematic view of the structure of a packing auger in a second embodiment of the present invention.
Fig. 3 is a schematic view showing an arrangement of the soil breaking blades in the second embodiment of the present invention.
Fig. 4 is a schematic view of a cutting edge curve of the soil breaking blade according to the second embodiment of the present invention.
Fig. 5 is a schematic view showing a structure of a flame sterilizing apparatus according to a second embodiment of the present invention.
Fig. 6 is a schematic view showing the arrangement of the flame spray gun in the radial cross section of the auger shaft in the second embodiment of the present invention.
FIG. 7 is a schematic view of the angle of the flame spray gun arrangement in a second embodiment of the invention.
Fig. 8 is a state change diagram of the packing auger in the second embodiment of the present invention.
Fig. 9 is a schematic diagram showing a backfill state in a second embodiment of the present invention.
In the figure: 1. a self-propelled chassis; 2. a support rod; 3, a step of; a lower support frame; 4. lifting hand wheels; 5. a worm gear reducer; 6. a lower sprocket; 7. an upper support frame; 8. a chain; 9. an upper sprocket; 10. a diesel engine; 11. a speed reducer; 12. a lifting frame; 13. lifting the guide rail; 14. a jacket barrel; 15. an inner sleeve barrel; 16. an auger; 161. an auger shaft; 162. soil breaking circulation blades; 163. digging a soil blade; 164. positioning a drill point; 17. a natural gas tank; 18. an oxygen tank; 19. an oxygen gas delivery pipe; 20. a natural gas delivery pipe; 21. a natural gas flow control valve; 22. an oxygen flow control valve; 23. a gas mixing chamber; 24. a natural gas pressure gauge; 25. an oxygen pressure gauge; 26. a mixed gas delivery pipe; 27. a flame spray gun; 28. an electronic igniter; 29. a soil crushing blade; 30. ground surface; 31. the dividing line of the digging blade and the soil breaking circulating blade; 32, a speed regulating handle; 33, an auger tachometer.
Detailed Description
In a specific embodiment, the flame disinfection method for the tree pit soil provided by the invention comprises the following steps:
(1) The auger with the sleeve barrel rotates and descends to drill into the soil, the soil is excavated, the soil is crushed, lifted and thrown to the wall of the barrel to fall through the rotation of the auger helical blade, and the soil is continuously lifted along with the auger, so that the soil circularly flows in the sleeve barrel;
(2) Spraying flame to the soil circularly flowing in the sleeve barrel for disinfection;
(3) Stopping spraying flame and lifting the auger after the flame disinfection operation is completed, wherein the auger keeps rotating in the lifting process, and soil falls down to backfill tree holes after being thrown to the wall of the sleeve barrel; and after the soil backfilling is finished, the tree pit soil is disinfected.
As shown in fig. 1, taking a fruit tree as an example, in a first embodiment, the plant pit soil flame disinfection machine provided by the invention comprises a self-propelled chassis 1, a pit digging and soil crushing backfilling device, a lifting device and a flame disinfection device. The self-propelled chassis 1 is of a crawler type design, walks stably, has good obstacle crossing capability, and realizes the movement of the sterilizer through the self-propelled chassis 1. The pit digging and soil breaking backfilling device, the lifting device and the flame sterilizing device are directly or indirectly connected with the self-propelled chassis 1 or are arranged on the self-propelled chassis 1; referring to fig. 2, the hole digging and soil breaking backfilling device comprises a ground entering auger and a first driving device, wherein the auger 16 comprises an auger shaft 161 and a spiral blade arranged on the shaft, the first driving device is used for driving the auger 16 to rotate, a cylindrical sleeve surrounding the auger is arranged on the periphery of the auger 16, and the lifting device is used for driving the auger 16 to lift. The flame disinfection device comprises an air source and a flame generating device, the air source and the flame generating device are connected through an air pipeline, and the flame generating device is used for spraying flame into the sleeve barrel.
In order to facilitate the installation of the hole digging and soil breaking backfilling device, the lifting device and the flame disinfection device, a proper rack is arranged in the embodiment. The frame comprises a plurality of support rods 2 which are vertically fixed on the self-propelled chassis 1, and a horizontal upper support frame 7 and a horizontal lower support frame 3 are jointly fixed on the support rods 2. The lifting device comprises a lifting guide rail 13, a lifting frame 12 and a worm gear reducer 5, wherein a plurality of lifting guide rails 13 (3 lifting guide rails in the embodiment) can be arranged, the lifting guide rails are respectively fixedly connected with the upper support frame 7 and the lower support frame 3, the lifting frame 12 is connected to the 3 lifting guide rails 13, and the lifting guide rails can axially slide relative to the lifting guide rails 13, namely can slide up and down along the lifting guide rails 13. The worm gear reducer 5 is fixed on the lower support frame 3, an input shaft of the worm gear reducer is connected with a lifting hand wheel 4, an output shaft of the worm gear reducer is connected with a lower chain wheel 6, an upper chain wheel 9 is further arranged on the support frame, the upper chain wheel 9 is connected with the lower chain wheel 6 through a chain 8, and the chain 8 is further connected with a lifting frame 12. The chain 8 can be rotated by rotating the lifting hand wheel 4, so that the lifting frame 12 is driven to move up and down along the lifting guide rail 13.
In the present embodiment, the first driving device is a diesel engine 10 or other suitable device. The diesel engine 10 is fixed on the lifting frame 12, the diesel engine 10 is connected with an auger tachometer 33, the lower support frame 3 is connected with a speed regulating handle 32, and the speed of the auger 16 is controlled through the speed regulating handle 32 and the auger tachometer 33. The lifting frame 12 is also provided with a speed reducer 11, an output shaft of the speed reducer 11 is connected with the diesel engine 10, the output rotating speed is reduced, and the screw conveyor is convenient to rotate.
The gas source of the flame disinfection device can adopt a natural gas tank 17 and an oxygen tank 18, which are both arranged on the self-propelled chassis 1. The gas pipeline comprises a natural gas pipeline 20, an oxygen gas pipeline 19 and a mixed gas pipeline 26, wherein the tail ends of the natural gas pipeline 20 and the oxygen gas pipeline 19 are respectively connected with a natural gas pressure gauge 24 and an oxygen pressure gauge 25, and a natural gas flow control valve 21 and an oxygen flow control valve 22 are respectively arranged on the two gas pipelines. The flame generating device comprises a gas mixing chamber 23, a flame spray gun group and an electronic igniter 28, wherein the flame spray gun group consists of 6 flame spray guns 27, and the flame spray guns 27 are uniformly distributed at the upper end of the sleeve barrel along the circumferential direction; the nozzle of the flame spray 27 is cylindrical, and the angle between the axis of the nozzle and the radial section of the auger shaft 161 is 58 degrees. An electronic igniter 28 is provided beside the flame spray gun 27. During operation, natural gas and oxygen are led to the gas mixing chamber 23 through the flow control valve along the natural gas conveying pipe 20 and the oxygen conveying pipe 19 respectively under the pressure effect to form mixed gas, the mixed gas is conveyed to the flame spray gun 27 through the mixed gas conveying pipe 26, the electronic igniter 28 ignites, the mixed gas is fully combusted, and high-temperature flame is sprayed. The structure of the flame sterilizing apparatus may refer to fig. 5 of the second embodiment, the arrangement of the flame spray guns 27 in the radial cross section of the auger shaft 161 may refer to fig. 6 of the second embodiment, and the arrangement angle of the flame spray guns 27 may refer to fig. 7 of the second embodiment.
When the soil disinfection operation is carried out by using the disinfection machine, the disinfection machine is moved to a place to be operated, the auger is vertical to the ground, the diesel engine 10 is started to drive the auger 16 to start rotating, then the lifting hand wheel 4 on the worm gear reducer 11 is rocked to enable the lifting frame 12 to descend, and then the auger is driven to descend, so that the soil excavation operation is carried out. In this embodiment, auger 16 has a locating drill point 164 (i.e., the auger entry end) to accurately locate the earth-moving site. The soil is crushed and lifted through the rotation and the decline of auger 16 helical blade, and in the promotion process soil is continued to be smashed by auger 16 blade and is got rid of to the bucket wall whereabouts, along with the continuous rotation, crushing, the promotion of auger 16 for soil circulation flow in the cover bucket. Auger 16 stops descending but remains rotated after it is lowered to the working depth. The speed of the auger 16 is kept between 1 and 200rpm by controlling the speed of the auger through the speed regulating handle 32 and the auger tachometer 33. Then slightly opening the natural gas flow control valve to enable a small amount of natural gas to overflow from the flame spray gun 27, then triggering the electronic igniter switch, and releasing an electric spark by the electronic igniter 28 arranged beside the flame spray gun 27 to ignite the overflowed natural gas, wherein the natural gas starts to burn smoothly and stably. The openings of the natural gas flow control valve 21 and the oxygen flow control valve 22 are slowly adjusted to mix the natural gas and the oxygen, thereby fully burning the natural gas and enlarging the flame sprayed from the flame spray gun 27. The flame spray gun 27 continuously sprays flame to the smashed and thrown soil, so that flame circulation disinfection of tree pit soil is realized. The position and angle of the flame spray gun 27 facilitate the sprayed flame to more fully contact the soil in the flow, so that the soil is heated more uniformly and the disinfection effect is better. After the disinfection operation is completed, the natural gas flow control valve 21 is closed, and after the flame is extinguished, the oxygen flow control valve 22 is closed. And (3) shaking a lifting hand wheel 4 on the worm gear reducer 11 to lift the auger 16, wherein the auger 16 keeps rotating at 1-200 rpm in the lifting process, and soil falls down to backfill tree holes after being thrown to the wall of the sleeve barrel. After the soil backfilling is finished, the diesel engine 10 is turned off to stop the auger 16, and the disinfection of the tree pit soil is completed. The machine can then be moved to the next work location and the process repeated.
The disinfection machine can realize fixed-point earth-entering soil-digging operation by utilizing the auger, so that on one hand, only the soil-digging operation is needed to be accurately carried out on the tree pit sites where trees are to be planted, and the soil-digging operation of the whole soil is not needed, thereby improving the disinfection operation efficiency and realizing large-scale tree pit disinfection; on the other hand, the auger can penetrate into the depth needed by the tree pit and crush, lift and circularly flow the soil, so that the digging operation of deeper soil can be realized, and the soil disinfection device is suitable for soil disinfection of trees with deeper planting depth such as fruit trees. The continuous circulation flow of the soil can be realized through the auger 16 and the sleeve barrel, so that the soil can be heated more uniformly by injecting high-temperature flame, the more complete disinfection of tree pit soil can be realized, and the flame disinfection operation is performed in a relatively closed space formed by the sleeve barrel, so that the disinfection heat is concentrated, the temperature loss is less, the energy utilization rate is high, and the disinfection effect is better. In addition, the sterilizer adopts a flame sterilization mode, uses physical sterilization to replace chemical sterilization (such as using sterilizing liquid medicine), avoids secondary pollution, is relatively friendly to the environment, and avoids the influence of chemical sterilization on the health of people and livestock. The sterilizer uses flame for sterilization, has high sterilization temperature, can effectively prevent soil-borne diseases, improves soil environment and increases tree survival rate.
Furthermore, the sleeve barrel can be designed to be large in top and small in bottom, and the minimum radius is not smaller than the radius of the auger soil digging blade, so that the soil is collected in the soil backfilling process, and the backfilling effect is improved.
Fig. 2 to 9 show a second embodiment of the present invention, which is based on the first embodiment, in which the screw blades on the auger shaft 161 include the smoothly connected digging blade 163 and the soil-pulverizing circulation blade 162, and the digging blade 163 is closer to the ground entering end of the auger 16, i.e., the digging blade 163 is located at the lower portion of the auger shaft 161, and the soil-pulverizing circulation blade 162 is located at the upper portion of the auger shaft 161. The digging blade 163 is designed with a fixed pitch and a fixed radius, the radius of the blade is equal to the radius of the digging pit, and the digging blade 163 is used for crushing and lifting the soil in the tree pit. The pitch and blade radius of the soil recycling blades 162 increases linearly in a direction away from the digging blades 163, i.e., the soil recycling blades 162 are of variable pitch and variable radius design.
In this embodiment, the helical blades are of a double helical design, i.e. 2 soil-pulverizing circulation blades 162 and 2 soil-digging blades 163 are designed. The pitch and blade radius of the soil recycling blades 162 increases linearly in a direction away from the digging blades 163, the smallest diameter of the soil recycling blades 162Equal to the diameter D of the blade 163 d Maximum diameter->Equal to 1.5D d The method comprises the steps of carrying out a first treatment on the surface of the Minimum pitch of the soil-pulverizing circulation blades 162>Equal to the pitch P of the blade 163 d Maximum pitch->Equal to 1.67P d The number of turns of the soil breaking circulation blades 162 is 1 turn. Looking from the soil recycling blade 162 to the digging blade 163, the helical surface of the soil recycling blade 162 remote from the locating drill point 164 is the upper helical surface of the soil recycling blade 162,the spiral surface of the digging blade 163 far from the locating drill point 164 is the upper spiral surface of the digging blade 163, the boundary straight line of the spiral surface of the soil breaking circulation blade 162 close to the locating drill point 164 is overlapped with the boundary straight line of the spiral surface of the digging blade 163 far from the locating drill point 164, the welding of the two blades is smooth, and as shown in fig. 2, the boundary line 31 of the digging blade 163 and the soil breaking circulation blade 162 is shown in fig. 2.
As shown in fig. 5 to 7, in the present embodiment, the distance from the projection of the nozzle axis to the axis of the auger shaft 161 in the radial cross section of the auger shaft 161 is 0.85D d . Wherein D is d Is the diameter of the digging blade 163. In the present embodiment, D is taken d 460mm, so that the projection of the spray head axis into the radial section of the auger shaft 161 is 0.85D to the axis of the auger shaft 161 d ＝390mm。
Further, as shown in fig. 3, the soil-crushing blades 29 are provided on the soil-crushing circulation blades 162, and the cutting edge curves of the soil-crushing blades 29 satisfy:
when D is d When the diameter is less than or equal to 300mm,x≥0；
when 300mm is less than or equal to D d When the diameter is less than or equal to 480mm,x≥0；
when D is d When the diameter is more than or equal to 480mm,x≥0；
wherein D is d E=2.72 for the diameter of the excavator blade 163; the blade curve is located in a plane parallel to the axis of the auger shaft 161, in the plane, the y-axis is parallel to the axis of the auger shaft 161, and the y-axis is forward away from the ground entering direction of the auger 16, the intersection point of the y-axis and the upper surface of the soil breaking circulation blade 162 is taken as the origin of coordinates, the y-axis takes the origin of coordinates as the rotation center, the y-axis rotates clockwise for 90 degrees from the plane view to the auger shaft 161 to form the x-axis, and the starting point of the blade curve is taken as the origin of coordinates, as shown in fig. 4. Curve of cutting edgeThe starting point and the ending point are both positioned on the upper surface of the soil breaking circulation blade 162, and a curved surface formed by stretching the blade curve along the direction perpendicular to the plane and far away from the auger shaft 161 is intersected with the upper surface of the soil breaking circulation blade 162 to form an intersecting line, and a closed curved surface formed by the intersecting line and the curved surface is a soil breaking blade, wherein the thickness of the soil breaking blade is 2mm in the embodiment; two planes which respectively pass through two boundary curves of the curved surface non-intersecting line and are parallel to the axis of the auger shaft 161 are cut with the upper surface of the soil breaking circulation blade 162 to form a cutting line, the cutting line and the boundary curves form a soil breaking blade surface, the cutting line and the intersecting line enclose a closed curved surface, and the closed curved surface, the soil breaking blade and the soil breaking blade surface form the soil breaking blade 29, as shown in fig. 3 and 4. The blade curve design of the soil crushing blade 29 effectively improves the soil crushing rate, so that the soil is fully burnt, and the disinfection effect is remarkably improved. The sheet-like design of the soil breaking blades 29 avoids obstruction of the soil flow by the soil breaking blades 29.
Further, the soil pulverizing blades 29 are spirally arranged in 3 groups on each of the soil pulverizing circulation blades 162, each group consisting of 2 soil pulverizing blades 29; along the auger shaft 161, looking from the soil-crushing circulating blades 162 to the soil-digging blades 163, in each group of the soil-crushing blades 29, a straight line where a connecting line of the starting points of the cutting edge curves of the 2 soil-crushing blades 29 is located passes through the axis of the auger shaft 161, and the distance from a point far from the axis of the auger shaft 161 in the intersection point of the straight line and the boundary spiral line of the upper spiral surface to the axis of the auger shaft 161 is L; the distance from the starting point of the cutting edge curve of the soil crushing blade 29 far from the auger shaft 161 to the axis of the auger shaft 161 in each group of the soil crushing blades 29 is 0.95L, and the distance from the starting point of the cutting edge curve near to the auger shaft 161 to the axis of the auger shaft 161 is 0.65L; in the present embodiment, along the auger shaft 161, looking at the earth-crushing circulation blades 162 from the auger shaft 161 as the rotation axis, the projection of the straight line generated by rotating the spiral surface on each earth-crushing circulation blade 162 by 15 ° clockwise from the spiral surface boundary line of the positioning drill tip 164 on the upper surface of the same earth-crushing circulation blade 162 is the 1 st positioning straight line, the projection of the two straight lines generated by rotating the spiral surface on each earth-crushing circulation blade 162 by 60 ° and 105 ° clockwise from the spiral surface boundary line of the positioning drill tip 164 on the upper surface of the same earth-crushing circulation blade 162 is the 2 nd and 3 rd positioning straight lines, and the start point of the blade curve of each group of earth-crushing blades is located on the positioning straight line; along auger shaft 161, looking from soil recycling blade 162 to soil digging blade 163, the soil crushing blade faces of all soil crushing blades 29 are at an angle of 65 ° to the straight line.
Accordingly, in this embodiment, the bucket has a portion that mates with the soil recycling vanes 162 when the auger 16 is landed to a designated depth. In this embodiment, the sleeve includes an outer sleeve 14 and an inner sleeve 15. The outer sleeve 14 is cylindrical and is fixedly connected with the support rod 2, and a chute is formed in the inner wall of the outer sleeve. The upper part of the inner sleeve barrel 15 is cylindrical, the lower part of the inner sleeve barrel 15 is in a truncated cone shape, the axes of the upper part and the lower part of the inner sleeve barrel 15 are overlapped with the axis of the auger shaft 161, the radius of the truncated cone-shaped part is gradually reduced along the entering direction of the auger 16, and the thinning trend of the truncated cone-shaped part of the lower part of the inner sleeve barrel 15 is matched with the radius reducing trend of the soil breaking circulation blades 162. The thick end of the inner sleeve barrel 15 is provided with a sliding rod which is matched with the sliding groove of the outer sleeve barrel 14, so that the inner sleeve barrel 15 can axially slide and position relative to the outer sleeve barrel 14. Through the sliding and positioning of the inner sleeve barrel 15 relative to the outer sleeve barrel 14, the inner sleeve barrel 15 can enter the outer sleeve barrel 14, so that the sterilizing machine can move conveniently, and when the auger 16 goes to the ground to a specified depth, the serrated structure arranged at the bottom edge of the smaller radius of the inner sleeve barrel 15 is matched, so that the soil is prevented from overflowing in the rotating process of the auger 16.
In this embodiment, the flame spray guns are uniformly distributed at the upper end of the outer tub 14 along the circumferential direction, and the arrangement manner is the same as that of the first embodiment, that is, the upper end of the outer tub 14 for arranging the flame spray guns is equivalent to the upper end of the outer tub 14 for arranging the flame spray guns in the first embodiment. The structure of the flame sterilizing apparatus is shown in fig. 5, the arrangement of flame guns in the radial section of the auger shaft 161 is shown in fig. 6, and the flame gun arrangement angle is shown in fig. 7.
In this embodiment, after the sterilizer is moved to the place to be operated, the auger 16, the outer tub 14, and the inner tub 15 are in a non-operating state before the operation is started, and as shown in the right view of fig. 8, the inner tub 15 is partially or entirely located in the outer tub 14. Before the auger 16 rotates, the operation slide bar slides and positions the inner sleeve barrel 15 to a proper position, the bottom edge with smaller radius of the inner sleeve barrel 15 contacts or is immersed into the ground 7, then the diesel engine 10 is started to drive the auger 16 to start rotating in the same way as the first embodiment, and then the lifting hand wheel 4 on the worm gear reducer 11 is rocked to enable the lifting frame 12 to descend, and then the auger is driven to descend, so that the soil-cutting operation is performed. Auger 16 has a locating drill tip 164 (i.e., the auger entry end) to accurately locate the earth-moving site. The soil is crushed and lifted through the rotation and the decline of auger 16 blade, and the soil is continued to be smashed by auger 16 blade and is thrown to the bucket wall whereabouts in the promotion process, along with the continuous rotation, crushing, the promotion of auger 16 for the soil circulates in the space that outer cover bucket 14 and inner cover bucket 15 jointly formed. The auger 16 is lowered to the working depth and then stops being lowered but is kept rotating, and at this time, the inner tub 15 is engaged with the soil recycling vanes 162 as shown in the left view of fig. 8, and then is sterilized by spraying flames as in the first embodiment. On the one hand, the soil is crushed and lifted by the soil digging blades 163, and on the other hand, the lifted soil is crushed and thrown out by the soil crushing circulating blades 162, falls to the bottom of the inner barrel 15 under the action of gravity, and is lifted again by the soil crushing circulating blades 162. So reciprocating, realize the broken and the circulation flow of soil for soil can be heated evenly and disinfection is realized. After the disinfection is finished, the flame disinfection device is closed, the auger 16 is lifted, the auger 16 keeps rotating in the lifting process, and soil falls down and is backfilled to tree holes after being thrown to the walls of the inner and outer barrels 14. During soil backfilling operation, a space is formed between the lifted auger 16 and the inner sleeve barrel 15 and the outer sleeve barrel 14, and under the centrifugal effect generated by rotation of the auger 16, the soil is thrown out, falls and is collected, and finally soil backfilling is realized. After the soil backfilling is completed, the auger 16 is stopped and the inner barrel 15 is retracted, as shown in fig. 9.
In this embodiment, because the crushed soil circulation blades 162 are gradually increased, and the inner barrel 15 is matched with the crushed soil circulation blades 162, more soil can be contained, crushed and driven, so that the crushed soil and flame form a larger contact area, and the soil can fall to the bottom of the inner barrel 15 and then be lifted by the crushed soil circulation blades 162 to circulate, so that more soil can be disinfected, and even a larger tree pit has a good disinfection effect. When the disinfection operation is not performed, the inner sleeve barrel 15 can enter the outer sleeve barrel 14 as much as possible by sliding, so that the space occupation is reduced, and the inner sleeve barrel 15 is lifted off the ground, thereby being convenient for the movement of the disinfection machine. Because the radius of the inner barrel 15 is gradually reduced along the entering direction of the auger 16, the inner barrel can be matched with the soil breaking circulation blades 162, and is beneficial to the collection of soil in the soil backfilling process, and the backfilling effect is improved. In addition, the bottom edge of the inner sleeve 15 can be contacted with the ground under different terrains by sliding the inner sleeve 15 relative to the outer sleeve 14, so that the soil is prevented from overflowing in the rotation process of the auger 16. The positioning of the sliding groove and the sliding rod can take a proper form, for example, grooves with different heights can be further designed on the sliding groove to clamp the sliding rod.
Further, the bottom edge of the inner barrel 15 with smaller radius is provided with a saw-tooth structure. The bottom edge with smaller radius of the inner barrel 15 contacts or is immersed into the soil after being positioned, and the serrated structure of the edge is beneficial to keeping the stability of the inner barrel 15 and the outer barrel 14 and improving the disinfection effect, and the serrated structure is convenient for being inserted into the soil and preventing the soil from overflowing during the rotation process of the auger 16.
The present invention has been further described with reference to the drawings and the specific embodiments, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (5)
1. The tree pit soil flame sterilizer is characterized in that: the device comprises a self-propelled chassis, a hole digging and soil breaking backfilling device, a lifting device and a flame disinfection device, wherein the hole digging and soil breaking backfilling device, the lifting device and the flame disinfection device are directly or indirectly connected with the chassis or are mounted on the chassis; the digging and soil-breaking backfilling device comprises a ground entering auger and a first driving device, wherein the first driving device is used for driving the auger to rotate, the lifting device is used for driving the auger to lift, and a sleeve barrel is arranged on the periphery of the auger; the flame disinfection device comprises an air source and a flame generation device, the air source and the flame generation device are connected through an air transmission pipeline, and the flame generation device is used for spraying flame into the sleeve barrel;
the spiral blade on the auger shaft comprises a smoothly connected digging blade and a broken soil circulating blade, the digging blade is closer to the ground entering end of the auger, the pitch and the blade radius of the broken soil circulating blade are gradually increased along the direction away from the digging blade, and the sleeve barrel is provided with a part matched with the broken soil circulating blade when the auger enters the ground to a specified depth;
the pitch and the radius of the blades of the soil digging machine are linearly increased along the direction away from the blades of the soil digging machine; minimum diameter D of the soil breaking circulation blades cmin Equal to the diameter D of the blade d Minimum pitch P of soil breaking circulation blades cmin Equal to the pitch P of the blade d The method comprises the steps of carrying out a first treatment on the surface of the The soil breaking circulating blades are provided with soil breaking blades;
the cutting edge curve of the soil breaking blade meets the following conditions:
when D is d When the diameter is less than or equal to 300mm,x≥0；
when 300mm is less than or equal to D d When the diameter is less than or equal to 480mm,x≥0；
when D is d When the diameter is more than or equal to 480mm,x≥0；
wherein D is d E=2.72 for the diameter of the earth-moving blade; the cutter blade curve is positioned in a plane parallel to the axis of the auger shaft, in the plane, the y-axis is parallel to the axis of the auger shaft, the y-axis is forward away from the ground entering direction of the auger, the intersection point of the y-axis and the upper surface of the soil breaking circulation blade is taken as the origin of coordinates, the y-axis takes the origin of coordinates as the rotation center, the auger shaft is seen from the plane, the y-axis rotates clockwise for 90 degrees to form an x-axis, and the cutterThe starting point of the blade curve is the origin of coordinates; the starting point and the ending point of the cutting edge curve are both positioned on the upper surface of the soil breaking circulation blade, a curved surface formed by stretching the cutting edge curve along the direction perpendicular to the plane and far away from the auger shaft is intersected with the upper surface of the soil breaking circulation blade to form an intersecting line, and a closed curved surface formed by the intersecting line and the curved surface is a soil breaking cutting edge; two planes which respectively pass through two boundary curves of the curved surface non-intersecting line and are parallel to the axis of the auger shaft are cut with the upper surface of the soil breaking circulating blade to form a cutting line, the cutting line and the boundary curves form a soil breaking blade surface, the cutting line and the intersecting line enclose a closed curved surface, and the closed curved surface, the soil breaking blade and the soil breaking blade surface form a soil breaking blade;
the flame disinfection device comprises a plurality of flame spray guns which are circumferentially arranged at the upper end of the sleeve barrel; the spray head of the flame spray gun is cylindrical, and the included angle between the axis of the spray head and the radial section of the auger shaft is 58 degrees; the distance from the projection of the axis of the spray head to the axis of the auger shaft in the radial section of the auger shaft is 0.85D d ，D d Is the diameter of the soil digging blade.
2. The plant pit soil flame sterilizer as claimed in claim 1, wherein: the soil crushing blades are arranged on the spiral surface of the soil crushing circulating blade in 3 groups, and each group consists of 2 soil crushing blades; along the auger shaft, looking from the soil crushing circulating blades to the soil digging blades, wherein in each group of soil crushing blades, a straight line where a connecting line of the starting points of the cutting edge curves of 2 soil crushing blades is positioned passes through the axis of the auger shaft; the distance from the point far from the axis of the auger shaft to the axis of the auger shaft in the intersection point of the straight line and the boundary spiral line of the spiral surface on the soil breaking circulation blade is L; the distance from the starting point of the cutting edge curve of the soil crushing blade far away from the auger shaft to the axis of the auger shaft in each group of soil crushing blades is 0.95L, and the distance from the starting point of the cutting edge curve close to the auger shaft to the axis of the auger shaft is 0.65L; the included angle of the straight lines of two adjacent groups of soil breaking blades is 45 degrees; along the auger shaft, the crushed soil blades face of all the crushed soil blades are 65 degrees from the straight line, as seen from the crushed soil circulating blades to the digging blades.
3. The plant pit soil flame sterilizer as claimed in claim 1, wherein: the auger sleeve comprises an outer sleeve and an inner sleeve, wherein the inner sleeve is provided with a part gradually thinned along the radius of the entering direction of the auger, the axis of the part coincides with the axis of the auger shaft, the thinning trend of the inner sleeve is matched with the reducing trend of the soil breaking circulating blade, the thick end of the inner sleeve is in sliding fit with the inner wall of the outer sleeve, and the sliding direction is consistent with the direction of the auger shaft.
4. A plant pit soil flame sterilizer according to claim 3, wherein: the bottom edge of the inner barrel with smaller radius is provided with a saw-tooth structure.
5. A method of flame disinfection of tree pit soil using the sterilizer of claim 1, comprising the steps of:
(1) The auger with the sleeve barrel rotates and descends to drill into the soil, the soil is excavated, the soil is crushed, lifted and thrown to the wall of the barrel to fall through the rotation of the auger helical blade, and the soil is continuously lifted along with the auger, so that the soil circularly flows in the sleeve barrel;
(2) Spraying flame to the soil circularly flowing in the sleeve barrel for disinfection;
(3) Stopping spraying flame and lifting the auger after the flame disinfection operation is completed, wherein the auger keeps rotating in the lifting process, and soil falls down to backfill tree holes after being thrown to the wall of the sleeve barrel; and after the soil backfilling is finished, the tree pit soil is disinfected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377175.2A CN108578719B (en) | 2018-04-25 | 2018-04-25 | Tree pit soil flame disinfection method and disinfection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377175.2A CN108578719B (en) | 2018-04-25 | 2018-04-25 | Tree pit soil flame disinfection method and disinfection machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108578719A CN108578719A (en) | 2018-09-28 |
| CN108578719B true CN108578719B (en) | 2024-04-02 |
Family
ID=63609524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810377175.2A Active CN108578719B (en) | 2018-04-25 | 2018-04-25 | Tree pit soil flame disinfection method and disinfection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108578719B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110495266A (en) * | 2019-08-27 | 2019-11-26 | 南京路通工程科技有限公司 | A kind of portable electric wetland loosening apparatus |
| CN113016273A (en) * | 2021-02-26 | 2021-06-25 | 江居燕 | Soil drilling equipment is used in gardens |
| CN114101309B (en) * | 2021-12-06 | 2022-09-30 | 蚌埠学院 | Device and method for restoring deep polluted soil |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1574916A (en) * | 1968-06-06 | 1969-07-18 | ||
| JP2006166835A (en) * | 2004-12-17 | 2006-06-29 | Nst:Kk | Soil disinfection apparatus |
| CN104521354A (en) * | 2015-01-07 | 2015-04-22 | 山东理工大学 | Intertillage, earthing, pesticide spraying and fertilizing machine for yellow tobacco |
| CN204932337U (en) * | 2015-09-08 | 2016-01-06 | 云南农业大学 | A kind of hand propelled is nursed young plants in hothouses substrate steaming sterilizer |
| CN205624103U (en) * | 2016-04-27 | 2016-10-12 | 河南农业大学 | All -hydraulic self -propelled soil circulation sterilizing machine |
| WO2016171111A1 (en) * | 2015-04-20 | 2016-10-27 | 三原 誠 | Sapling planting apparatus and sapling planting vehicle |
| CN106670224A (en) * | 2016-09-21 | 2017-05-17 | 河南金谷实业发展有限公司 | Soil remediation device |
| CN106818698A (en) * | 2015-12-03 | 2017-06-13 | 成都九十度工业产品设计有限公司 | A kind of soil pesticide machine and its control system |
| CN106888629A (en) * | 2017-03-23 | 2017-06-27 | 山东农业大学 | A kind of original position dig pit batch mixing backfill all-in-one and its method of work |
| CN106973586A (en) * | 2017-04-20 | 2017-07-25 | 竺林坤 | A kind of artificial intelligent type kind tree digging apparatus |
| CN107258159A (en) * | 2017-08-11 | 2017-10-20 | 安徽独秀山蓝莓科技开发有限公司 | A kind of blueberry plantation punch device of digging pit |
| CN107333476A (en) * | 2017-08-24 | 2017-11-10 | 蒋文 | A kind of automatic hack planter of digging a pit, hole, etc. of agricultural |
| CN107466504A (en) * | 2017-09-27 | 2017-12-15 | 山东农业大学 | The soil disinfection subsoiler and method that a kind of flame deep layer sterilization doubles as |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8979356B2 (en) * | 2012-12-18 | 2015-03-17 | Feldmeier Equipment, Inc. | Dual agitator mixer with sanitary tank |
-
2018
- 2018-04-25 CN CN201810377175.2A patent/CN108578719B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1574916A (en) * | 1968-06-06 | 1969-07-18 | ||
| JP2006166835A (en) * | 2004-12-17 | 2006-06-29 | Nst:Kk | Soil disinfection apparatus |
| CN104521354A (en) * | 2015-01-07 | 2015-04-22 | 山东理工大学 | Intertillage, earthing, pesticide spraying and fertilizing machine for yellow tobacco |
| WO2016171111A1 (en) * | 2015-04-20 | 2016-10-27 | 三原 誠 | Sapling planting apparatus and sapling planting vehicle |
| CN204932337U (en) * | 2015-09-08 | 2016-01-06 | 云南农业大学 | A kind of hand propelled is nursed young plants in hothouses substrate steaming sterilizer |
| CN106818698A (en) * | 2015-12-03 | 2017-06-13 | 成都九十度工业产品设计有限公司 | A kind of soil pesticide machine and its control system |
| CN205624103U (en) * | 2016-04-27 | 2016-10-12 | 河南农业大学 | All -hydraulic self -propelled soil circulation sterilizing machine |
| CN106670224A (en) * | 2016-09-21 | 2017-05-17 | 河南金谷实业发展有限公司 | Soil remediation device |
| CN106888629A (en) * | 2017-03-23 | 2017-06-27 | 山东农业大学 | A kind of original position dig pit batch mixing backfill all-in-one and its method of work |
| CN106973586A (en) * | 2017-04-20 | 2017-07-25 | 竺林坤 | A kind of artificial intelligent type kind tree digging apparatus |
| CN107258159A (en) * | 2017-08-11 | 2017-10-20 | 安徽独秀山蓝莓科技开发有限公司 | A kind of blueberry plantation punch device of digging pit |
| CN107333476A (en) * | 2017-08-24 | 2017-11-10 | 蒋文 | A kind of automatic hack planter of digging a pit, hole, etc. of agricultural |
| CN107466504A (en) * | 2017-09-27 | 2017-12-15 | 山东农业大学 | The soil disinfection subsoiler and method that a kind of flame deep layer sterilization doubles as |
Non-Patent Citations (2)
| Title |
|---|
| 华南热带作物学院.热带作物病虫害防治学.农业出版社,1991,(第2版),第64-65页. * |
| 自走式温室育苗槽基质蒸汽消毒机的设计;朱加繁;张汝坤;杨陆强;高志超;喻自荣;赵玉清;;农机化研究(第04期);第 78-82页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108578719A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108578719B (en) | Tree pit soil flame disinfection method and disinfection machine | |
| CN106888629B (en) | In-situ digging, mixing and backfilling integrated machine and working method thereof | |
| CN204518715U (en) | Native integrated device is closed in a kind of ornamental trees and shrubs plantation system hole | |
| CN205455588U (en) | Soil insecticidal device singly rolls | |
| CN206747263U (en) | A kind of contaminated soil in-situ immobilization equipment | |
| CN207321807U (en) | A kind of Chinese garden planting car that efficiently loosens the soil | |
| CN214429974U (en) | Spartina alterniflora treatment is with garrulous root device of ploughing | |
| CN105474852A (en) | Nursery pond water circulation fertilizing device with heating function | |
| CN105359706A (en) | Weeding apparatus | |
| CN109201725A (en) | A kind of contaminated soil remediation device | |
| CN104521935B (en) | Deep soil high-temperature disinsection heating sterilizer | |
| CN210043069U (en) | Flame insecticidal sterilization apparatus | |
| CN208838621U (en) | Plant pit soil flame disinfection machine | |
| CN111406459B (en) | Planting is with root repairing device based on modern agriculture | |
| CN202285986U (en) | Bacterium and pest killing oven with multiple cooking ranges | |
| CN108377818B (en) | Tree pit soil steam disinfection method and disinfection machine | |
| CN206547267U (en) | Weeder | |
| CN111528209A (en) | Automatic walking soil flame sterilizing machine | |
| CN204409371U (en) | A kind of deep soil high-temperature disinsection heating sterilizer | |
| CN208318068U (en) | Plant pit sterilising soil by steam machine | |
| CN209156716U (en) | A kind of contaminated soil remediation device | |
| CN205389362U (en) | Overcome farm work machine of continuous cropping obstacle soil | |
| CN202979992U (en) | High temperature killing machine for insect pest in deep layer of soil | |
| CN107649508A (en) | A kind of device that soil pollutant is removed using laser | |
| CN212139071U (en) | Automatic walking soil flame sterilizing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |