CN115228317B - Fertilizer and pesticide preparation device and method for flue-cured tobacco planting - Google Patents
Fertilizer and pesticide preparation device and method for flue-cured tobacco planting Download PDFInfo
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- CN115228317B CN115228317B CN202210792950.7A CN202210792950A CN115228317B CN 115228317 B CN115228317 B CN 115228317B CN 202210792950 A CN202210792950 A CN 202210792950A CN 115228317 B CN115228317 B CN 115228317B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/23—Mixing by intersecting jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/2201—Control or regulation characterised by the type of control technique used
- B01F35/2203—Controlling the mixing process by feed-forward, i.e. a parameter of the components to be mixed is measured and the feed values are calculated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/2201—Control or regulation characterised by the type of control technique used
- B01F35/2209—Controlling the mixing process as a whole, i.e. involving a complete monitoring and controlling of the mixing process during the whole mixing cycle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2211—Amount of delivered fluid during a period
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/04—Mixing biocidal, pesticidal or herbicidal ingredients used in agriculture or horticulture, e.g. for spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/32—Mixing fertiliser ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0413—Numerical information
- B01F2215/0436—Operational information
- B01F2215/045—Numerical flow-rate values
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizing (AREA)
Abstract
本发明公开了一种烤烟种植用的肥药制备装置及方法，所述制备装置包括制备箱、第一储料罐以及第二储料罐，所述制备箱的左侧壁上固定安装有第一喷头，所述制备箱的右侧壁上固定安装有第二喷头，且所述第一喷头与第二喷头同轴设置，所述第一储料罐用于储存液体肥料，所述第二储料罐用于储存乳油农药，所述第一储料罐的底部配合与第一供料管的一端配合连接，所述第一供料管的另一端与所述第一喷头配合连接，所述第二储料罐的底部配合与第二供料管的一端配合连接，通过控制机构便能够调节第一喷头与第二喷头的喷洒量，并且控制机构的整体结构简单，易于控制，造价成本低，使用范围更广。
The invention discloses a fertilizer and pesticide preparation device and method for flue-cured tobacco planting. The preparation device comprises a preparation box, a first storage tank and a second storage tank. A first nozzle is fixedly installed on the left wall of the preparation box, a second nozzle is fixedly installed on the right wall of the preparation box, and the first nozzle and the second nozzle are coaxially arranged. The first storage tank is used to store liquid fertilizer, and the second storage tank is used to store emulsifiable concentrate pesticide. The bottom of the first storage tank is matched and connected with one end of a first feeding pipe, the other end of the first feeding pipe is matched and connected with the first nozzle, and the bottom of the second storage tank is matched and connected with one end of the second feeding pipe. The spraying amount of the first nozzle and the second nozzle can be adjusted by a control mechanism, and the overall structure of the control mechanism is simple, easy to control, low in cost, and has a wider range of applications.
Description
Technical Field
The invention relates to the technical field of agricultural equipment, in particular to a fertilizer and pesticide preparation device and method for flue-cured tobacco planting.
Background
In the flue-cured tobacco planting process, pesticide spraying and fertilizer application are often needed, and the fertilizer and pesticide can ensure the yield and income increase of flue-cured tobacco. The agricultural chemical in China has rich varieties, more dosage forms, larger proportion of the emulsifiable concentrate agricultural chemical in the agricultural chemical dosage forms in China and wider application range. In the fertilizer structure adjustment, the liquid fertilizer is regarded as a key element of three-dimensional fertilization, and is one of the trends of chemical fertilizer industry in the world today. With the development of agricultural production, the development of scientific technology is continuous, the product of creating pharmaceutical and fertilizer integration becomes a hot spot for agricultural technical personnel to study, and the emulsifiable concentrate pesticide which is the same as spraying type is mixed and compatible with the liquid fertilizer, so that the labor intensity of farmers can be reduced, labor and cost are saved, the use function of the original product is expanded, and the method has important practical significance. The liquid fertilizer prepared by mixing the liquid fertilizer and the pesticide is convenient to apply, and can timely carry out nutrition conditioning on the flue-cured tobacco while killing crop pests, so that the flue-cured tobacco can grow healthily. However, in the process of mixing and matching the liquid fertilizer and the emulsifiable concentrate pesticide, the liquid fertilizer is an aqueous solution, the pesticide with the emulsifiable concentrate is an oil solution, the liquid fertilizer and the emulsifiable concentrate pesticide are not easy to mix, and the mixing effect is poor.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a fertilizer preparation device and method for flue-cured tobacco planting.
The technical scheme adopted by the invention for achieving the purpose is as follows:
The invention discloses a fertilizer preparation device for flue-cured tobacco planting, which comprises a preparation box, a first storage tank and a second storage tank, wherein a first spray head is fixedly arranged on the left side wall of the preparation box, a second spray head is fixedly arranged on the right side wall of the preparation box, and the first spray head and the second spray head are coaxially arranged;
The first storage tank is used for storing liquid fertilizer, the second storage tank is used for storing missible oil pesticide, the bottom of the first storage tank is matched and connected with one end of a first feeding pipe, the other end of the first feeding pipe is matched and connected with the first spray head, the bottom of the second storage tank is matched and connected with one end of a second feeding pipe, and the other end of the second feeding pipe is matched and connected with the second spray head;
the first feeding pipe is provided with a first material pumping pump, the second feeding pipe is provided with a second material pumping pump, and the first feeding pipe and the second feeding pipe are provided with control mechanisms.
Further, in a preferred embodiment of the present invention, at least one group of monitoring mechanisms is disposed on the left and right side walls of the preparation box, the monitoring mechanisms include a mounting frame, a rotating motor is fixedly installed on the mounting frame, an output end of the rotating motor is cooperatively connected with a coupling, a threaded screw is cooperatively connected with the coupling, a sliding block is slidingly connected with the threaded screw, a fixing plate is fixedly connected with the sliding block, an optical camera is fixedly installed on the fixing plate, and an infrared sensor is disposed on the sliding block.
Furthermore, in a preferred embodiment of the present invention, a guide rail is fixedly installed on the mounting frame, a guide block is fixedly connected to the sliding block, the guide block is embedded in the guide rail, and the guide block can slide along the guide rail.
Further, in a preferred embodiment of the present invention, the control mechanism includes a housing, a partition board is disposed in the housing, a first housing seat is disposed on one side of the partition board, a second housing seat is disposed on the other side of the partition board, a plurality of sliding grooves are formed in the bottom of the first housing seat along the circumferential direction, and plugs are slidably connected in the sliding grooves.
Further, in a preferred embodiment of the present invention, a plurality of electromagnetic blocks are disposed on an inner sidewall of the housing along a circumferential direction.
Further, in a preferred embodiment of the present invention, the plug is fixedly connected with one end of the connecting rod, the other end of the connecting rod penetrates through the side wall of the first housing seat and extends into the housing, the other end of the connecting rod is fixedly connected with the iron block, the outer side wall of the first housing seat is fixedly connected with one end of the elastic spring, the other end of the elastic spring is fixedly connected with the iron block, and the connecting rod is sleeved in the elastic spring.
Further, in a preferred embodiment of the present invention, a through hole is formed at the bottom of the sliding groove, and the through hole penetrates through the bottom of the second housing seat.
Further, in a preferred embodiment of the present invention, the first housing seat is connected with a first connection block in a matching manner, a first threaded connection hole is formed on the first connection block, the second housing seat is connected with a second connection block in a matching manner, and a second threaded connection hole is formed on the second connection block.
The invention also discloses a control method of a fertilizer preparation device for flue-cured tobacco planting, which is applied to any fertilizer preparation device for flue-cured tobacco planting, and comprises the following steps:
Acquiring jet flow area image information through an optical camera;
Extracting parameter information of an emergent flow area based on the image information, wherein the parameter information comprises contour information of the emergent flow area;
Extracting a first coordinate value of a nearest node of the transverse jet flow region and the radial jet flow region from the jet flow residence point based on the parameter information;
Extracting a second coordinate value of the farthest node of the transverse jet flow area and the radial jet flow area from the jet flow residence point based on the parameter information;
calculating a jet circulation coefficient based on the first coordinate value and the second coordinate value;
and adjusting the spraying quantity of the first spray head and the second spray head in real time based on the jet circulation coefficient.
Further, in a preferred embodiment of the present invention, the spraying amounts of the first nozzle and the second nozzle are adjusted in real time based on the fluidic ring coefficients, and the method specifically includes the following steps:
if the jet flow circulation coefficient is greater than or equal to 1, reducing the spraying quantity of the first spray head and the second spray head;
if the jet flow circulation coefficient is more than 0 and less than 1, not adjusting the spraying quantity of the first spray head and the second spray head;
and if the jet flow circulation coefficient is smaller than or equal to 0, increasing the spraying quantity of the first spray head and the second spray head.
The invention solves the technical defects existing in the background technology, and has the following beneficial effects: the first shower nozzle sets up with the second shower nozzle symmetry, the process of transmission between momentum, heat and the quality is with liquid fertilizer to the emulsifiable concentrate pesticide that can be very big promotion, and then improves the interphase transmission coefficient between them by a wide margin to realize the emulsifiable concentrate pesticide and the liquid fertilizer quick, the efficient mixed process, thereby prepare liquid fertilizer medicine, for traditional stirring mixing arrangement, mixing efficiency is higher, and the mixing effect is better. The spraying quantity of the first spray head and the second spray head can be adjusted through the control mechanism, and the whole structure of the control mechanism is simple, easy to control, low in manufacturing cost and wide in application range. The monitoring mechanism can acquire images of the jet flow area in all directions, and then preprocess and integrate the images, so that outline shape information of the jet flow area is obtained.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other embodiments of the drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first perspective view of a fertilizer preparation device;
FIG. 2 is a second perspective view of a fertilizer preparation device;
FIG. 3 is a schematic diagram of a monitoring mechanism;
FIG. 4 is a first perspective view of the control mechanism;
FIG. 5 is a second perspective view of the control mechanism;
FIG. 6 is a schematic diagram of the internal structure of the control mechanism when the electromagnet block is powered off;
FIG. 7 is a schematic diagram of the internal structure of the control mechanism when the electromagnet block is electrified;
The reference numerals are explained as follows: 101. preparing a box; 102. a first storage tank; 103. a second storage tank; 104. a first nozzle; 105. a second nozzle; 106. a first feed tube; 107. a second feed pipe; 108. a first material pumping pump; 109. a second material pumping pump; 201. a control mechanism; 202. a mounting frame; 203. a rotating electric machine; 204. a coupling; 205. a threaded screw rod; 206. a sliding block; 207. a fixing plate; 208. an optical camera; 209. a guide rail; 301. a guide block; 302. a housing; 303. a partition plate; 304. a first housing base; 305. a second housing; 306. a sliding groove; 307. a plug; 308. an electromagnetic block; 309. a connecting rod; 401. iron blocks; 402. an elastic spring; 403. a through-flow hole; 404. a first connection block; 405. a first threaded bore; 406. a second connection block; 407. a second threaded connection hole; 408. and monitoring the mechanism.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and detailed description thereof, which are simplified schematic drawings which illustrate only the basic structure of the application and therefore show only those features which are relevant to the application, it being noted that embodiments of the application and features of the embodiments may be combined with each other without conflict.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may include one or more of the feature, either explicitly or implicitly. In the description of the application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art in a specific case.
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1 and 2, the first aspect of the present invention discloses a fertilizer and pesticide preparation device for flue-cured tobacco planting, the preparation device includes a preparation box 101, a first storage tank 102 and a second storage tank 103, a first spray head 104 is fixedly installed on a left side wall of the preparation box 101, a second spray head 105 is fixedly installed on a right side wall of the preparation box 101, and the first spray head 104 and the second spray head 105 are coaxially arranged.
The first storage tank 102 is used for storing liquid fertilizer, the second storage tank 103 is used for storing missible oil pesticide, the bottom cooperation of first storage tank 102 is connected with the one end cooperation of first feed pipe 106, the other end of first feed pipe 106 with first shower nozzle 104 cooperation is connected, the bottom cooperation of second storage tank 103 is connected with the one end cooperation of second feed pipe 107, the other end of second feed pipe 107 with second shower nozzle 105 cooperation is connected.
The first feeding pipe 106 is provided with a first material pump 108, the second feeding pipe 107 is provided with a second material pump 109, and the first feeding pipe 106 and the second feeding pipe 107 are both provided with a control mechanism 201.
When the liquid fertilizer is required to be prepared, the first pump 108 and the second pump 109 are controlled to be turned on, so that the first pump 108 pumps the liquid fertilizer stored in the first storage tank 102 along the first feed pipe 106, and then the liquid fertilizer is accelerated and pressurized at the first nozzle 104 to form a high-speed fluid to be sprayed into the preparation tank 101; meanwhile, the second pump 109 pumps the emulsifiable concentrate pesticide stored in the second storage tank 103 along the second feed pipe 107, and then the emulsifiable concentrate pesticide is accelerated and pressurized at the second nozzle 105 to form another high-speed fluid to be sprayed into the preparation tank 101; the two high-speed fluids sprayed out at the same time can be impacted oppositely in the preparation tank 101, the two high-speed fluids form a jet standing point after being impacted for the first time on the horizontal center line, then radial jet generated by the standing point forms a radial jet area at a speed which is higher than the average flow speed of the two high-speed fluids and swings left and right, and when the transverse jet horizontally develops left and right, four vortex which are opposite in rotation are formed up and down due to the instability of the standing point, so that the transverse jet area is formed. Because the radial jet flow and the transverse jet flow generated by the horizontal opposite impact have aperiodic oscillation movement, the process of transmitting momentum, heat and mass between the emulsifiable concentrate pesticide and the liquid fertilizer can be greatly promoted, and the inter-phase transmission coefficient of the emulsifiable concentrate pesticide and the liquid fertilizer can be greatly improved, so that the process of quickly and efficiently mixing the emulsifiable concentrate pesticide and the liquid fertilizer is realized, and the liquid fertilizer is prepared, and compared with the traditional stirring and mixing device, the mixing efficiency is higher, and the mixing effect is better.
As shown in fig. 1 and 3, at least one group of monitoring mechanisms 408 are disposed on the left and right side walls of the preparation box 101, the monitoring mechanisms 408 comprise a mounting frame 202, a rotating motor 203 is fixedly mounted on the mounting frame 202, an output end of the rotating motor 203 is cooperatively connected with a coupling 204, a threaded screw rod 205 is cooperatively connected with the coupling 204, a sliding block 206 is slidably connected with the threaded screw rod 205, a fixing plate 207 is fixedly connected with the sliding block 206, an optical camera 208 is fixedly mounted on the fixing plate 207, and an infrared sensor is disposed on the sliding block 206.
The mounting frame 202 is also fixedly provided with a guide rail 209, the sliding block 206 is fixedly connected with a guide block 301, the guide block 301 is embedded in the guide rail 209, and the guide block 301 can slide along the guide rail 209.
In the jet flow area formed by two high-speed fluids of the emulsifiable concentrate pesticide and the liquid fertilizer, the emulsifiable concentrate pesticide and the liquid fertilizer can generate intense collision friction, so that the emulsifiable concentrate pesticide and the liquid fertilizer have the characteristic of mass transfer, in the process, the stable jet flow area can form a stable contour shape, and the mixing effect of the emulsifiable concentrate pesticide and the liquid fertilizer can be reflected according to the distribution condition of the contour shape. Therefore, in the invention, the image information of the jet flow area is photographed in real time by the optical camera 208, and then the outline condition of the jet flow area is identified according to the image information, so that the spraying amount of the first nozzle 104 and the second nozzle 105 is adjusted according to the outline condition, and the mixing effect and efficiency of the emulsifiable concentrate pesticide and the liquid fertilizer are improved.
It should be noted that, by driving the rotating motor 203, the rotating motor 203 drives the coupling 204 to rotate, thereby driving the threaded screw rod 205 to rotate, so that the sliding block 206 can slide up and down along the threaded screw rod 205, thereby driving the optical camera 208 to slide up and down along the preparation box 101, so that the optical camera can acquire the image information of the jet flow area at different height positions, and the monitoring mechanisms 408 are arranged on the left and right side walls of the preparation box 101, so that the optical camera 208 can acquire the image information of the jet flow area in different directions, thus, the image of the jet flow area can be acquired in all directions, and then the images are preprocessed and integrated, thereby obtaining the outline shape information of the jet flow area.
As shown in fig. 6 and 7, the control mechanism 201 includes a housing 302, a partition plate 303 is disposed in the housing 302, a first housing seat 304 is disposed on one side of the partition plate 303, a second housing seat 305 is disposed on the other side of the partition plate 303, a plurality of sliding grooves 306 are formed in the bottom of the first housing seat 304 along the circumferential direction, and plugs 307 are slidably connected in the sliding grooves 306.
The inner side wall of the housing 302 is provided with a plurality of electromagnetic blocks 308 along the circumferential direction.
The plug 307 is fixedly connected with one end of the connecting rod 309, the other end of the connecting rod 309 penetrates through the side wall of the first housing seat 304 and extends into the housing 302, the other end of the connecting rod 309 is fixedly connected with the iron block 401, the outer side wall of the first housing seat 304 is fixedly connected with one end of the elastic spring 402, the other end of the elastic spring 402 is fixedly connected with the iron block 401, and the connecting rod 309 is sleeved in the elastic spring 402.
A through hole 403 is formed at the bottom of the sliding groove 306, and the through hole 403 penetrates through the bottom of the second housing 305.
The control mechanism 201 can control the on/off and the spraying amount of the first nozzle 104 and the second nozzle 105. Specifically, when it is required to make the liquid fertilizer be sprayed by the first spray head 104 or the emulsifiable concentrate pesticide be sprayed by the second spray head 105, all the electromagnetic blocks 308 on the control mechanism 201 are electrified, the electrified electromagnetic blocks 308 generate magnetic force, under the attraction of the magnetic force, the iron block 401 is attracted to the electromagnetic blocks 308 (at this time, the elastic spring 402 is in a stretched state), and in the moving process of the iron block 401, the iron block 401 pulls the connecting rod 309 to move, so as to pull the plug 307 to slide along the outer side of the sliding groove 306, so that the plug 307 no longer blocks the through-flow hole 403, the liquid fertilizer can flow into the first spray head 104 from the first feed pipe 106, and the emulsifiable concentrate pesticide can flow into the second spray head 105 from the second feed pipe 107; in contrast, when it is not necessary to make the liquid fertilizer be sprayed from the first spray head 104 or the emulsifiable concentrate pesticide be sprayed from the second spray head 105, all the electromagnetic blocks 308 are controlled to be powered off, the powered-off electromagnetic blocks 308 lose magnetic force, and the elastic spring 402 in the stretched state is reset under the action of resilience force at this time, so that the iron block 401 is pulled to reset, so that the plug 307 is driven to reset, so that the plug 307 plugs the through-hole 403 again, so that the liquid fertilizer cannot pass through the first supply, and the emulsifiable concentrate pesticide cannot pass through the second supply pipe 107. In addition, when the spraying amount of the first spray head 104 or the second spray head 105 needs to be controlled, only the on-off electricity of the electromagnetic blocks 308 is needed to be controlled, specifically, preferably, the sliding grooves 306 in the control mechanism 201 are arranged into four groups, when only one half of the spraying amount is needed, two magnetic blocks in the control mechanism 201 are electrified and the other two magnetic blocks are powered off, and the liquid fertilizer or the emulsifiable concentrate pesticide can only flow out of two through holes 403 in the control mechanism 201 but cannot flow out of the other two through holes 403, so that only one half of the spraying amount of the first spray head 104 or the second spray head 105 can flow out. Similarly, when only one quarter of the spray level is required, one of the solenoid blocks 308 of the control mechanism 201 is energized and the other three solenoid blocks 308 are de-energized. In this way, the control mechanism 201 can adjust the spraying amount of the first nozzle 104 and the second nozzle 105, and the control mechanism 201 has a simple overall structure, is easy to control, has low manufacturing cost and low cost, and has a wider application range.
As shown in fig. 4 and 5, the first housing seat 304 is connected with a first connecting block 404 in an internal fit manner, a first threaded connection hole 405 is formed in the first connecting block 404, the second housing seat 305 is connected with a second connecting block 406 in an internal fit manner, and a second threaded connection hole 407 is formed in the second connecting block 406.
It should be noted that, the control mechanism 201 can be connected to the first feeding pipe and the second feeding pipe through the first threaded connection hole 405 and the second threaded connection hole 407, and the installation process is simple and easy to detach.
The invention also discloses a control method of a fertilizer preparation device for flue-cured tobacco planting, which is applied to any fertilizer preparation device for flue-cured tobacco planting, and comprises the following steps:
Acquiring jet flow area image information through an optical camera;
Extracting parameter information of an emergent flow area based on the image information, wherein the parameter information comprises contour information of the emergent flow area;
Extracting a first coordinate value of a nearest node of the transverse jet flow region and the radial jet flow region from the jet flow residence point based on the parameter information;
Extracting a second coordinate value of the farthest node of the transverse jet flow area and the radial jet flow area from the jet flow residence point based on the parameter information;
calculating a jet circulation coefficient based on the first coordinate value and the second coordinate value;
and adjusting the spraying quantity of the first spray head and the second spray head in real time based on the jet circulation coefficient.
Further, in a preferred embodiment of the present invention, the spraying amounts of the first nozzle and the second nozzle are adjusted in real time based on the fluidic ring coefficients, and the method specifically includes the following steps:
if the jet flow circulation coefficient is greater than or equal to 1, reducing the spraying quantity of the first spray head and the second spray head;
if the jet flow circulation coefficient is more than 0 and less than 1, not adjusting the spraying quantity of the first spray head and the second spray head;
and if the jet flow circulation coefficient is smaller than or equal to 0, increasing the spraying quantity of the first spray head and the second spray head.
It should be noted that, the fluidic circulation coefficient is a physical quantity used for characterizing the vortex structure characteristic of the jet field, and can macroscopically characterize the distribution condition of the jet flow profile after the opposite collision of the missible oil pesticide and the liquid fertilizer, in general, the more the jet flow profile tends to be round, the better the profile distribution uniformity after the opposite collision of the missible oil pesticide and the liquid fertilizer is illustrated, namely, the better the mixing effect of the missible oil pesticide and the liquid fertilizer is, the fluidic circulation coefficient calculation formula is as follows:
Wherein R e represents a jet circulation coefficient; n represents the number of nodes on the jet region; i represents the ith node on the jet region; t n represents the coordinate value of the nearest node of the transverse jet area from the jet residence point; t n+1 represents the coordinate value of the furthest node of the transverse jet area from the jet residence point; p n represents the coordinate value of the nearest node of the transverse jet area from the jet residence point; p n+1 represents the coordinate value of the furthest node of the lateral jet region from the jet stagnation point.
The distribution of the jet profile of the jet area can reflect the mixing degree of the emulsifiable concentrate pesticide and the liquid fertilizer. If the jet flow ring index of the jet flow area is larger than or equal to 1 during the opposite impact of the missible oil pesticide and the liquid fertilizer, the situation that the kinetic energy carried by the missible oil pesticide and the liquid fertilizer is too large during the opposite impact is described, and after the direction of the opposite impact of the missible oil pesticide and the liquid fertilizer is changed by the opposite impact of the jet flow standing point, the high flow velocity is still maintained in the transverse jet flow area and the radial jet flow area, so that the impact friction time of the missible oil pesticide and the liquid fertilizer is too short, the mass transfer time is too short, the mixing effect of the missible oil pesticide and the liquid fertilizer is reduced, and the spraying quantity of the first spray nozzle and the second spray nozzle is required to be increased through a control mechanism; if the jet flow ring index of the jet flow area is smaller than or equal to 0 when the emulsifiable concentrate pesticide and the liquid fertilizer are impacted oppositely, the kinetic energy carried by the emulsifiable concentrate pesticide and the liquid fertilizer is too small when the emulsifiable concentrate pesticide and the liquid fertilizer are impacted oppositely, the dispersion degree of the emulsifiable concentrate pesticide and the liquid fertilizer is lower, the distribution range of the impacted jet flow area is too small, the mixing efficiency of the emulsifiable concentrate pesticide and the liquid fertilizer is affected, and the spraying quantity of the first spray head and the second spray head is required to be reduced through a control mechanism; if the jet flow circulation coefficient is more than 0 and less than 1, the mixing effect and efficiency of the emulsifiable concentrate pesticide and the liquid fertilizer are good, and the spraying amount of the first spray head and the second spray head does not need to be adjusted.
The foregoing description of the preferred embodiments according to the present invention is provided as illustration and description, and is not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A control method of a fertilizer preparation device for flue-cured tobacco planting is characterized by comprising the following steps:
the preparation device comprises a preparation box, a first storage tank and a second storage tank, wherein a first spray head is fixedly arranged on the left side wall of the preparation box, a second spray head is fixedly arranged on the right side wall of the preparation box, and the first spray head and the second spray head are coaxially arranged;
The first storage tank is used for storing liquid fertilizer, the second storage tank is used for storing missible oil pesticide, the bottom of the first storage tank is matched and connected with one end of a first feeding pipe, the other end of the first feeding pipe is matched and connected with the first spray head, the bottom of the second storage tank is matched and connected with one end of a second feeding pipe, and the other end of the second feeding pipe is matched and connected with the second spray head;
the first feeding pipe is provided with a first material pumping pump, the second feeding pipe is provided with a second material pumping pump, and the first feeding pipe and the second feeding pipe are both provided with control mechanisms;
The control method comprises the following steps:
Acquiring jet flow area image information through an optical camera;
Extracting parameter information of an emergent flow area based on the image information, wherein the parameter information comprises contour information of the emergent flow area;
Extracting a first coordinate value of a nearest node of the transverse jet flow region and the radial jet flow region from the jet flow residence point based on the parameter information;
Extracting a second coordinate value of the farthest node of the transverse jet flow area and the radial jet flow area from the jet flow residence point based on the parameter information;
calculating a jet circulation coefficient based on the first coordinate value and the second coordinate value;
adjusting the spraying quantity of the first spray head and the second spray head in real time based on the jet circulation coefficient;
The spray quantity of the first spray head and the second spray head is adjusted in real time based on the jet flow circulation coefficient, and the method specifically comprises the following steps of:
if the jet flow circulation coefficient is greater than or equal to 1, reducing the spraying quantity of the first spray head and the second spray head;
if the jet flow circulation coefficient is more than 0 and less than 1, not adjusting the spraying quantity of the first spray head and the second spray head;
and if the jet flow circulation coefficient is smaller than or equal to 0, increasing the spraying quantity of the first spray head and the second spray head.
2. The control method of a fertilizer preparation device for flue-cured tobacco planting according to claim 1, wherein: the device is characterized in that at least one group of monitoring mechanisms are arranged on the left side wall and the right side wall of the preparation box, each monitoring mechanism comprises a mounting frame, a rotating motor is fixedly installed on each mounting frame, the output end of each rotating motor is connected with a coupler in a matched mode, a threaded screw rod is connected to each coupler in a matched mode, a sliding block is connected to each threaded screw rod in a sliding mode, a fixing plate is fixedly connected to each sliding block, an optical camera is fixedly installed on each fixing plate, and an infrared sensor is arranged on each sliding block.
3. The control method of a fertilizer preparation device for flue-cured tobacco planting according to claim 2, wherein: the mounting rack is also fixedly provided with a guide rail, the sliding block is fixedly connected with a guide block, the guide block is embedded into the guide rail, and the guide block can slide along the guide rail.
4. The control method of a fertilizer preparation device for flue-cured tobacco planting according to claim 1, wherein: the control mechanism comprises a shell, a partition plate is arranged in the shell, a first shell seat is arranged on one side of the partition plate, a second shell seat is arranged on the other side of the partition plate, a plurality of sliding grooves are formed in the bottom of the first shell seat along the circumferential direction, and plugs are connected in the sliding grooves in a sliding mode.
5. The control method of the fertilizer preparation device for flue-cured tobacco planting according to claim 4, wherein: the inside wall of casing is provided with a plurality of electromagnetism piece along circumference.
6. The control method of the fertilizer preparation device for flue-cured tobacco planting according to claim 4, wherein: the plug is fixedly connected with one end of the connecting rod, the other end of the connecting rod penetrates through the side wall of the first shell seat and stretches into the shell, the other end of the connecting rod is fixedly connected with the iron block, the outer side wall of the first shell seat is fixedly connected with one end of the elastic spring, the other end of the elastic spring is fixedly connected with the iron block, and the connecting rod is sleeved in the elastic spring.
7. The control method of the fertilizer preparation device for flue-cured tobacco planting according to claim 4, wherein: and the bottom of the sliding groove is provided with a through hole, and the through hole penetrates through the bottom of the second shell seat.
8. The control method of the fertilizer preparation device for flue-cured tobacco planting according to claim 4, wherein: the first shell seat is connected with a first connecting block in an internal fit manner, a first threaded screwed hole is formed in the first connecting block, the second shell seat is connected with a second connecting block in an internal fit manner, and a second threaded screwed hole is formed in the second connecting block.
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| CN202210792950.7A CN115228317B (en) | 2022-07-05 | 2022-07-05 | Fertilizer and pesticide preparation device and method for flue-cured tobacco planting |
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