CN115508178A - Electric heating plate rapid digestion system and method - Google Patents
Electric heating plate rapid digestion system and method Download PDFInfo
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- CN115508178A CN115508178A CN202211143189.0A CN202211143189A CN115508178A CN 115508178 A CN115508178 A CN 115508178A CN 202211143189 A CN202211143189 A CN 202211143189A CN 115508178 A CN115508178 A CN 115508178A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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Abstract
The invention provides a rapid digestion system and a rapid digestion method for an electric hot plate, wherein the system comprises the electric hot plate and a placing plate matched with the electric hot plate and capable of being placed on the electric hot plate, M multiplied by N limiting holes matched with a crucible and used for fixing the crucible are uniformly distributed on the placing plate, and the placing plate is provided with an acid adding device. The acid adding device provided by the invention can automatically and quantitatively add acid, improve the working efficiency, reduce the labor intensity of workers, accurately quantify the added mixed acid and reduce the experimental error.
Description
Technical Field
The invention relates to the technical field of experimental equipment, in particular to a system and a method for quickly digesting an electric heating plate.
Background
The electric heating plate digestion is commonly used for researching different components and characteristics of soil. During the experiment, a plurality of groups of samples need to be simultaneously placed on an electric heating plate for heating so as to control the same variables of heating power, heating time and the like. Because every group's sample all includes a plurality of samples, the sample all adorns and is in the crucible, because the sample is more, as many as 108 samples, the order of disturbing random when shifting to electric plate heater or other processing steps easily (shift the crucible sample at present and directly place the crucible in enamel dish the inside, in the transfer process, the crucible still falls easily, leads to the sample to spill), even often adopt the label to paste on the crucible, the label also drops easily, leads to still confusing each group's sample together easily. In the digestion process, mixed acid is required to be added into each crucible, manual addition is adopted at present, a plurality of samples are needed, time and labor are wasted, the addition amount is not easily controlled, and therefore a digestion system which can not be easily confused and is convenient for adding the mixed acid is urgently needed.
Disclosure of Invention
The invention aims to at least solve the technical problems in the prior art, and particularly innovatively provides a system and a method for quickly digesting an electric heating plate.
In order to achieve the above purpose, the invention provides a rapid digestion system for an electric hot plate, which comprises the electric hot plate and a placing plate matched with the electric hot plate and capable of being placed on the electric hot plate, wherein M x N limiting holes matched with a crucible and used for fixing the crucible are uniformly distributed on the placing plate, M and N are positive integers larger than or equal to 1, the placing plate is provided with an acid adding device, the acid adding device comprises a suspension, the suspension comprises door-shaped frames which are oppositely arranged and positioned at the left side and the right side of the placing plate, the top surfaces of cross beams of the door-shaped frames at the left side and the right side are both concavely provided with guide rails which extend forwards and backwards and are respectively a left guide rail and a right guide rail, the automobile chassis comprises a left guide rail and a right guide rail, wherein M row inductors are arranged on the left guide rail or the right guide rail, a 1 st row inductor, a 2 nd row inductor, a 3 rd row inductor, a 8230, an M row inductor and a sliding rail extending from left to right are sequentially arranged between beams on the left side and the right side respectively from front to back, N line inductors are arranged on the sliding rail (3), a 1 st line inductor, a 2 nd line inductor, a 3 rd line inductor, a 8230, a 8230and an N line inductor are sequentially arranged from left to right respectively, two ends of the sliding rail are respectively connected in the guide rail in a sliding mode through walking wheels, the walking wheels are provided with Y-axis motors, and the walking wheels are driven to move through the Y-axis motors so as to drive the sliding rail to move back and forth;
the top surface of the sliding rail is provided with a rack extending left and right, a gear is meshed with the rack and is provided with an X-axis motor, an acid adding metering device is arranged below the sliding rail, and the acid adding metering device is hung below the gear;
the heating signal control end of the MCU controller is connected with the heating signal input end of the electric heating plate, the acidification signal control end of the MCU controller is connected with the acidification signal input end of the acidification metering device, the front-back movement signal control end of the MCU controller is connected with the positive and negative rotation signal input end of the Y-axis motor, and the left-right movement signal control end of the MCU controller is connected with the positive and negative rotation signal input end of the X-axis motor;
the method comprises the following steps that (1) a sensing signal output end of an mth line sensor is connected with a line sensing input mth end of an MCU controller, wherein M =1, 2, 3, \8230; \ M is the sensing signal output end of the 1 st line sensor is connected with the line sensing input 1 st end of the MCU controller, a sensing signal output end of the 2 nd line sensor is connected with the line sensing input 2 nd end of the MCU controller, a sensing signal output end of the 3 rd line sensor is connected with the line sensing input 3 rd end of the MCU controller, \8230;, a sensing signal output end of the M line sensor is connected with the line sensing input M end of the MCU controller; the method comprises the steps that the induction signal output end of an nth row inductor is connected with an nth row induction input end of an MCU controller, wherein N =1, 2, 3, \ 8230, N is the induction signal output end of the 1 st row inductor is connected with the 1 st row induction input end of the MCU controller, the induction signal output end of a 2 nd row inductor is connected with the 2 nd row induction input end of the MCU controller, the induction signal output end of a 3 rd row inductor is connected with the 3 rd row induction input end of the MCU controller, \ 8230, and the induction signal output end of an nth row inductor is connected with the N th row induction input end of the MCU controller.
In a preferred embodiment of the present invention, the acid adding metering device includes an acid adding metering pipe, the acid adding metering pipe is communicated with the acid liquid storage tank through an acid adding pipe, and the acid adding pipe is provided with an acid adding pump, a valve and a flow meter;
the acid adding signal control end of the MCU controller is connected with the working signal input end of the acid adding pump, the signal input end of the valve is connected with the valve signal control end of the MCU controller, and the flow signal output end of the flowmeter is connected with the flow signal input end of the MCU controller.
When mixed acid needs to be added, the MCU controller drives the X-axis motor and the Y-axis motor to move the acid adding metering device to the position right above a crucible to be added, then the MCU controller opens the valve and starts the acid adding metering device, mixed acid is added to the crucible, when the added amount of the mixed acid reaches the set value of the acid adding metering device, the MCU controller stops the acid adding metering device and closes the valve, meanwhile, the MCU controller drives the X-axis motor and the Y-axis motor to move to the next crucible to be added until all crucibles are added with the mixed acid, and the MCU controller starts the electric heating plate to heat.
In a preferred embodiment of the present invention, the suspension further comprises a liquid monitoring device mounted on the suspension, and a data output end of the liquid monitoring device is connected to a liquid monitoring data input end of the MCU controller. And when the liquid monitoring device detects that no liquid exists in the crucible, the MCU controller stops the electric heating plate to continue heating.
Place and set up spacing hole on the board, can place the crucible in spacing hole steadily, when the board is placed in the removal, the crucible is difficult for empting.
In a preferred embodiment of the invention, the acid adding metering device is provided with connecting lugs positioned at the front side and the rear side of the sliding rail, and the two connecting lugs are rotatably connected at the front end and the rear end of the gear rotating shaft, so that the acid adding metering device is hung below the gear and is driven to move left and right through the gear;
or the up-down lifting device is provided with connecting lugs positioned at the front side and the rear side of the slide rail, and the two connecting lugs are rotatably connected to the front end and the rear end of the gear rotating shaft, so that the up-down lifting device is hung below the gear and drives the up-down lifting device to move left and right through the gear; an acid adding metering device is arranged on the up-down lifting device.
In a preferred embodiment of the invention, the up-and-down lifting device comprises a horizontal mounting plate arranged at the tail end of the connecting support lug, a Z-axis motor is arranged on the horizontal mounting plate, an up-and-down moving signal control end of the MCU controller is connected with a positive and negative rotation signal input end of the Z-axis motor, a load line is arranged on a rotation driving end of the Z-axis motor, and the other end of the load line is connected with the acid adding metering device. The MCU controller sends a downward descending control command to the Z-axis motor, and the acid adding metering pipe descends to a set height threshold value, so that the acid adding process is prevented from splashing due to too high height, and safety is guaranteed.
In a preferred embodiment of the invention, the bottom ends of the uprights of the portal frame are detachably connected to the resting plate. Can be installed when mixed acid needs to be added and can be removed when the mixed acid is not needed.
In a preferred embodiment of the present invention, the top surface of the placing plate is provided with a positioning hole for inserting the bottom end of the column, the side edge of the placing plate is transversely provided with a threaded hole corresponding to the positioning hole, the threaded hole is communicated with the positioning hole, the threaded hole is internally threaded with a tightening bolt, and the column is tightened in the positioning hole by the tightening bolt, so as to realize installation. Simple structure, the equipment is quick, stable, and it is convenient to dismantle.
In a preferred embodiment of the present invention, the liquid monitoring device is a camera or a temperature detector;
when the liquid monitoring device is a camera, the image data output end of the camera is connected with the liquid monitoring image data input end of the MCU controller;
when the liquid monitoring device is a temperature detector, the temperature data output end of the temperature detector is connected with the liquid monitoring temperature data input end of the MCU controller;
the placing plate is made of polytetrafluoroethylene. High-temperature resistance and corrosion resistance, and the service life is prolonged.
The X-axis motor, the Y-axis motor and the Z-axis motor are all stepping motors.
The invention also discloses a working method of the electric hot plate rapid digestion system, which comprises the following steps:
s1, initializing a system;
s2, the MCU controller controls the acid adding metering device to move to the position right above a crucible to be added with acid;
s3, after the acid adding metering device moves to the position right above the crucible to be added with acid, the MCU controller controls the acid adding metering device to add acid into the crucible to be added with acid;
s4, after the acid adding metering device finishes adding acid into the crucible to be added with acid, the acid adding metering device returns to a safety position;
and S5, after all the crucibles are filled with the acid, the MCU controller sends a heating work control command to the electric heating plates, and the electric heating plates heat the crucibles.
In a preferred embodiment of the present invention, step S1 includes the following steps:
s11, respectively receiving sensing signals of M row sensors and N column sensors by the MCU controller, and determining the position of the acid adding metering device;
s12, the MCU judges the height of the acid adding metering device, and if the acid adding metering device is located at a safety position, initialization is executed; if the acid adding metering device is located at the acid adding position, the MCU controller sends a forward rotation control command to the Z-axis motor to shorten the load line of the Z-axis motor, the Z-axis motor stops working after the acid adding metering device returns to the safety position, and initialization is completed at the moment.
In a preferred embodiment of the present invention, step S2 includes the following steps:
s21, determining the position of the crucible to be added with acid, and recording the position as P' x ′ y′ ，P′ x′y′ Indicating that the acid dosing device is to be moved directly over the x 'row, y' column crucibles, x '=1, 2, 3, \ 8230 \ 8230;, M, y' =1, 2, 3, \ 8230; \ 8230;, N;
s22, judging the size relationship between x' and x:
if x' = x; the X-axis motor does not work; executing the next step;
if x' > x; the MCU controller sends a forward rotation control command to the X-axis motor to enable the X-axis motor to move rightwards; returning to step S22;
if x' < x; the MCU controller sends a reverse control command to the X-axis motor to enable the X-axis motor to move leftwards; returning to step S22;
s23, judging the size relationship between y' and y:
if y' = y; the Y-axis motor does not work; executing the next step;
if y' > y; the MCU controller sends a forward rotation control command to the Y-axis motor to enable the Y-axis motor to move backwards; returning to step S23;
if y' < y; the MCU controller sends a reverse control command to the Y-axis motor to enable the Y-axis motor to move forwards; returning to the step S23;
and S24, the MCU controller sends a reverse rotation control command to the Z-axis motor to enable a load line of the Z-axis motor to extend, and the Z-axis motor stops working when the acid adding metering device descends to an acid adding position.
In a preferred embodiment of the present invention, step S3 includes the following steps:
s31, the MCU controller sends an opening control command to the valve, and the valve is opened;
s32, the MCU controller sends a work control command to the acid adding pump, and the acid adding pump works;
s33, the MCU controller obtains the real-time flow numerical value collected by the flowmeter, and judges whether the acid amount dropped into the crucible by the acid adding metering tube is equal to a preset acid adding threshold value:
if the acid amount dropped into the crucible by the acid adding metering tube is equal to the preset acid adding threshold value, executing the next step;
if the acid amount dropped into the crucible by the acid adding metering tube is less than the preset acid adding threshold value, returning to the step S33;
and S34, the MCU controller sends a stop working control command to the acid adding pump, and the acid adding pump stops working.
In a preferred embodiment of the present invention, the method for returning the acid metering device to the safe position in step S4 is as follows:
and when the acid adding metering device rises to a safe position, the MCU controller sends a work stopping control command to the Z-axis motor, and the Z-axis motor stops working.
In conclusion, due to the adoption of the technical scheme, when the crucible pot is used, the crucible pot can be always placed on the placing plate, so that the steps of weighing, adding acid, digesting, fixing volume, cleaning and the like are completed (in the steps, the placing plate can be used for replacing an enamel plate to place the crucible pot, the crucible pot cannot be toppled, and the sequence is not disordered), and the efficiency is improved. The acid adding device can automatically and quantitatively add acid, improve the working efficiency, reduce the labor intensity of workers, ensure the added mixed acid to be quantitative and accurate, and reduce the experimental error.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the connection of the acid addition metering device of the present invention to an acid tank.
FIG. 3 is a schematic view of the connection of the acid addition metering device and the lifting device.
Fig. 4 is a system diagram of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1 to 4, an electric hot plate rapid digestion system includes an electric hot plate 5 and a placing plate 1 which is matched with the electric hot plate and can be placed on the electric hot plate 5, M × N limiting holes 1a which are matched with crucibles and used for fixing the crucibles are uniformly distributed on the placing plate 1, M and N are positive integers greater than or equal to 1, and the limiting holes 1a are distributed in a matrix. The 1 st row of limiting holes, the 2 nd row of limiting holes, the 3 rd row of limiting holes, the 8230, the Nth row of limiting holes are sequentially formed from left to right; the front and back are respectively the 1 st line spacing hole, the 2 nd line spacing hole, the 3 rd line spacing hole, the 8230, the M line spacing hole; correspondingly, the crucible placed on the 1 st row and 1 st column limiting hole is a 1 st row and 1 st column crucible, the crucible placed on the 1 st row and 2 nd column limiting hole is a 1 st row and 2 nd column crucible, and the crucible placed on the 1 st row and 3 rd column limiting hole is a 1 st row and 3 rd column crucible, \8230;, the crucible placed on the 1 st row and N column limiting hole is a 1 st row and N column crucible; the crucible placed on the 2 nd row and 1 st column limiting hole is a 2 nd row and 1 st column crucible, the crucible placed on the 2 nd row and 2 nd column limiting hole is a 2 nd row and 2 nd column crucible, the crucible placed on the 2 nd row and 3 rd column limiting hole is a 2 nd row and 3 rd column crucible, \ 8230 \ 8230;, the crucible placed on the 2 nd row and N column limiting hole is a 2 nd row and N column crucible; the crucible placed on the 3 rd row and 1 st column limiting hole is a 3 rd row and 1 st column crucible, the crucible placed on the 3 rd row and 2 nd column limiting hole is a 3 rd row and 2 nd column crucible, the crucible placed on the 3 rd row and 3 rd column limiting hole is a 3 rd row and 3 rd column crucible, \8230 \\ 8230;, the crucible placed on the 3 rd row and N column limiting hole is a 3 rd row and N column crucible; the crucibles placed on the M-th row and 1-st column limiting holes are M-th row and 1-st column crucibles, the crucibles placed on the M-th row and 2-nd column limiting holes are M-th row and 2-th column crucibles, the crucibles placed on the M-th row and 3-rd column limiting holes are M-th row and 3-rd column crucibles, \ 8230 \ 8230, and the crucibles placed on the M-th row and N-th column limiting holes are M-th row and N-th column crucibles. In order to facilitate the identification of the crucible by the camera, a circle of red mark is arranged on the edge of each crucible cup, and a red solid origin is arranged on the placing plate and is specifically arranged at the front left corner. When the crucible is placed on the limiting holes, the image can be shot to determine which limiting holes are provided with the crucible, and the specific identification method comprises the following steps:
firstly, processing a shot image into a gray image;
secondly, determining the positions of the red solid origin and the crucible according to the pixel values of the gray level image:
if the sum of the pixel values of the region p is greater than or equal to a preset pixel value threshold value, p =1, 2, 3, \\8230 \8230;, Q are the total number of the regions, the region p is a red solid origin or a crucible;
counting the number of pixel values in the region Q which are larger than a preset pixel threshold value, wherein the number of the pixel values in the region Q is larger than or equal to the preset number threshold value, if the number of the pixel values in the region Q is larger than or equal to the preset number threshold value, the region corresponding to the number is a crucible, and if the number of the pixel values in the region Q is smaller than the preset number threshold value, the region corresponding to the number is a red solid origin;
thirdly, judging the number of rows and columns of crucibles according to the determined red solid original point and the position of the crucible:
and obtaining the number of rows and columns of the crucibles according to the distance between the connecting line of the red solid origin and the crucible and the included angle between the connecting line of the red solid origin and the crucible and the reference line.
The placing plate 1 is provided with an acid adding device, the acid adding device comprises a suspension 2, and the suspension 2 comprises door-shaped frames which are oppositely arranged and are positioned at the left side and the right side of the placing plate. The top surfaces of the cross beams 2b of the door-shaped frames on the left side and the right side are both concavely provided with guide rails extending forwards and backwards, the guide rails are respectively a left guide rail and a right guide rail, M row inductors are arranged on the left guide rail or the right guide rail, the 1 st row inductor, the 2 nd row inductor, the 3 rd row inductor and the 8230are sequentially arranged on the front and the back respectively, the M row inductors are provided with a left-and-right extending slide rail 3 between the cross beams 2b on the left side and the right side, N column inductors are arranged on the slide rail 3, the 1 st column inductor, the 2 nd column inductor, the 3 rd column inductor and the 8230are sequentially arranged from left to right, the 8230, the Nth column inductors and the row inductor and the column inductor can be proximity sensors. 3 both ends of slide rail are respectively through walking wheel 3a sliding connection in the guide rail, and walking wheel 3a is equipped with Y axle motor 3b, drives walking wheel 3a through Y axle motor 3b and removes to drive 3 back-and-forth movements of slide rail.
The top surface of the slide rail 3 is provided with a rack extending left and right, a gear 4b is meshed on the rack, and the gear 4b is provided with an X-axis motor 4c. An acid adding metering device is arranged below the sliding rail 3, the acid adding metering device is hung below the gear 4b, and the acid adding metering device is communicated with the acid liquid storage tank 7 through an acid adding pipe. An acid adding pump, a valve 4e and a flowmeter 4d are arranged on the acid adding pipe, a liquid monitoring device 6 is installed on the suspension 2, the data output end of the liquid monitoring device 6 is connected with the liquid monitoring data input end of the MCU controller, the MCU controller is arranged according to actual conditions and is arranged at a reasonable position, the heating signal control end of the MCU controller is connected with the heating signal input end of the electric heating plate 5, the acid adding signal control end of the MCU controller is connected with the acid adding signal input end of the acid adding metering device, the front-back movement signal control end of the MCU controller is connected with the positive-negative rotation signal input end of the Y-axis motor 3b, and the left-right movement signal control end of the MCU controller is connected with the positive-negative rotation signal input end of the X-axis motor 4 c; the acid adding signal control end of the MCU controller is connected with the working signal input end of the acid adding pump, the signal input end of the valve 4e is connected with the valve signal control end of the MCU controller, and the flow signal output end of the flowmeter 4d is connected with the flow signal input end of the MCU controller; the method comprises the steps that the induction signal output end of an M-th line inductor is connected with an M-th line induction input end of an MCU controller, wherein M =1, 2, 3, \ 8230, M is the induction signal output end of the 1 st line inductor is connected with a 1 st line induction input end of the MCU controller, the induction signal output end of a 2 nd line inductor is connected with a 2 nd line induction input end of the MCU controller, the induction signal output end of a 3 rd line inductor is connected with a 3 rd line induction input end of the MCU controller, \ 8230, and the induction signal output end of an M-th line inductor is connected with an M-th line induction input end of the MCU controller; the method comprises the steps that the induction signal output end of an nth row inductor is connected with an nth row induction input end of an MCU controller, wherein N =1, 2, 3, \ 8230, N is the induction signal output end of the 1 st row inductor is connected with the 1 st row induction input end of the MCU controller, the induction signal output end of a 2 nd row inductor is connected with the 2 nd row induction input end of the MCU controller, the induction signal output end of a 3 rd row inductor is connected with the 3 rd row induction input end of the MCU controller, \ 8230, and the induction signal output end of an nth row inductor is connected with the N th row induction input end of the MCU controller.
Preferably, M =11, n =12; at the moment, 11 line sensors are arranged on the left guide rail or the right guide rail at equal intervals, and are respectively a line 1 sensor, a line 2 sensor, a line 3 sensor, a line 5 sensor, a line 6 sensor, a line 7 sensor, a line 8 sensor, a line 9 sensor, a line 10 sensor and a line 11 sensor from front to back; the 12 line sensors are arranged on the sliding rail 3 at equal intervals and are respectively a 1 st line sensor, a 2 nd line sensor, a 3 rd line sensor, a 4 th line sensor, a 5 th line sensor, a 6 th line sensor, a 7 th line sensor, an 8 th line sensor, a 9 th line sensor, a 10 th line sensor, a 11 th line sensor and a 12 th line sensor from left to right; an 11 x 12 sensor array is formed, corresponding to the crucibles which are all placed in the limiting holes (when the MCU controller receives the ith row sensor and the jth column sensor respectively, i =1, 2, 3, 8230; i, j =1, 2, 3, 8230; N, at this time, the acid adding metering device is positioned right above the ith row and jth column crucibles); the induction signal output end of the 1 st line inductor is connected with the 1 st line induction input end of the MCU controller, the induction signal output end of the 2 nd line inductor is connected with the 2 nd line induction input end of the MCU controller, the induction signal output end of the 3 rd line inductor is connected with the 3 rd line induction input end of the MCU controller, the induction signal output end of the 4 th line inductor is connected with the 4 th line induction input end of the MCU controller, the induction signal output end of the 5 th line inductor is connected with the 5 th line induction input end of the MCU controller, the induction signal output end of the 6 th line inductor is connected with the 6 th line induction input end of the MCU controller, the induction signal output end of the 7 th line inductor is connected with the 7 th line induction input end of the MCU controller, the induction signal output end of the 8 th line inductor is connected with the 8 th line induction input end of the MCU controller, the induction signal output end of the 9 th line inductor is connected with the 9 th line induction input end of the MCU controller, the induction signal output end of the 10 th line inductor is connected with the 10 th line induction input end of the MCU controller, and the induction signal output end of the 11 th line inductor is connected with the 11 th line induction controller; the induction signal output end of the 1 st line inductor is connected with the 1 st line induction input end of the MCU controller, the induction signal output end of the 2 nd line inductor is connected with the 2 nd line induction input end of the MCU controller, the induction signal output end of the 3 rd line inductor is connected with the 3 rd line induction input end of the MCU controller, the induction signal output end of the 4 th line inductor is connected with the 4 th line induction input end of the MCU controller, the induction signal output end of the 5 th line inductor is connected with the 5 th line induction input end of the MCU controller, the induction signal output end of the 6 th line inductor is connected with the 6 th line induction input end of the MCU controller, the induction signal output end of the 7 th line inductor is connected with the 7 th line induction input end of the MCU controller, the induction signal output end of the 8 th line inductor is connected with the 8 th line induction input end of the MCU controller, the induction signal output end of the 9 th line inductor is connected with the 9 th line induction input end of the MCU controller, the induction signal output end of the MCU induction signal output end of the 10 th line inductor is connected with the 10 th line induction input end of the MCU controller, the induction signal output end of the 11 th line inductor is connected with the 12 th line induction input end of the MCU controller, and the MCU controller.
Specifically, be equipped with the connection journal stirrup 4a that is located slide rail 3 front and back both sides on the metering device that adds sour, two connection journal stirrups 4a all rotate the connection at both ends around gear 4b pivot for add sour metering device and hang and establish in gear 4 b's below, and remove about driving the metering device that adds sour through gear 4 b.
Or the horizontal mounting plate is provided with connecting lugs 4a positioned at the front side and the rear side of the sliding rail 3, and the two connecting lugs 4a are rotatably connected to the front end and the rear end of a rotating shaft of the gear 4b, so that the horizontal mounting plate is hung below the gear 4b and is driven to move left and right through the gear 4 b; the horizontal mounting plate is provided with a Z-axis motor, the up-down moving signal control end of the MCU controller is connected with the positive and negative rotation signal input end of the Z-axis motor, the rotation driving end of the Z-axis motor is provided with a load line, and the other end of the load line is connected with the acidification metering device.
Preferably, the bottom end of the upright post 2a of the door-shaped frame is detachably connected to the placing plate 1, and the door-shaped frame can be installed when mixed acid needs to be added and removed when the mixed acid does not need to be added. Specifically, the following may be mentioned: the top surface of the placing plate 1 is provided with a positioning hole for inserting the bottom end of the stand column 2a, a threaded hole is transversely formed in the side edge of the placing plate 1 corresponding to the positioning hole, the threaded hole is communicated with the positioning hole, the threaded hole is internally connected with a clamping bolt 2c, the stand column 2a is clamped in the positioning hole through the clamping bolt 2c, and installation is achieved.
When mixed acid needs to be added, the MCU controller drives the X-axis motor 4c and the Y-axis motor 3b to move the acid adding metering device to the position right above a crucible to be added, then the MCU controller opens the valve and starts the acid adding metering device to add the mixed acid to the crucible, in order to prevent acid liquid from splashing due to overhigh height, the MCU controller drives the X-axis motor 4c and the Y-axis motor 3b to move the acid adding metering device to the position right above the crucible to be added, then the MCU controller drives the Z-axis motor to descend to the acid adding position, then the MCU controller opens the valve and starts the acid adding metering device to add the mixed acid to the crucible, when the amount of the added mixed acid reaches a preset acid adding threshold value of the acid adding metering device, the MCU controller stops the acid adding metering device and closes the valve, the MCU controller drives the Z-axis motor to enable the acid adding metering device to return to a safe position, then the X-axis motor 4c and the Y-axis motor 3b are driven to move to the next position where the crucible needs to be added until all the crucibles are heated by the mixed acid, and the MCU controller starts the electric heating plate 5 to add the mixed acid. When the liquid monitoring device detects that no liquid exists in the crucible, the MCU controller stops the electric heating plate 5 to continue heating.
The liquid monitoring device 6 may be a camera or a temperature detector. Adopting a camera, wherein the image data output end of the camera is connected with the liquid monitoring image data input end of the MCU controller; then the camera is used to observe whether acid still exists in the crucible. A temperature detector is adopted, and the temperature data output end of the temperature detector is connected with the liquid monitoring temperature data input end of the MCU controller; it is detected whether the temperature is increased significantly by the temperature detector because if there is a solution in the crucible, the temperature detected by the temperature detector is the boiling temperature of the solution and continues to stabilize in the vicinity of the boiling temperature. If the temperature rises sharply, the temperature can be raised continuously until the solution in the crucible is not available.
Preferably, the resting plate 1 is made of polytetrafluoroethylene. High-temperature resistance and corrosion resistance, and the service life is prolonged.
Preferably, the X-axis motor 4c, the Y-axis motor 3b, and the Z-axis motor are all stepping motors, and can stably drive the X-axis motor 4c, the Y-axis motor 3b, and the Z-axis motor by a moving distance each time.
The invention also discloses a working method of the electric hot plate rapid digestion system, which comprises the following steps:
s1, initializing a system;
s2, the MCU controller controls the acid adding metering device to move to the position right above the crucible to be added with acid;
s3, after the acid adding metering device moves to the position right above the crucible to be added with acid, the MCU controller controls the acid adding metering device to add acid into the crucible to be added with acid;
s4, after the acid adding metering device finishes adding acid into the crucible to be added with acid, the acid adding metering device returns to a safety position;
and S5, after all the crucibles are filled with the acid, the MCU controller sends a heating work control command to the electric heating plate 5, and the electric heating plate 5 heats the crucibles.
In a preferred embodiment of the present invention, step S1 includes the following steps:
s11, respectively receiving sensing signals of M line sensors and N line sensors by an MCU controller, wherein the sensing signals of the M line sensors and the N line sensors are used for determining the position of an acid metering device, if the MCU controller receives the sensing signals of the 1 st line sensor and the 1 st line sensor, the acid metering device is positioned right above a 1 st line and a 1 st line crucible, if the MCU controller receives the sensing signals of the 1 st line sensor and the 2 nd line sensor, the acid metering device is positioned right above a 1 st line and a 2 nd line crucible, if the MCU controller receives the sensing signals of the 1 st line sensor and the 3 rd line sensor, the acid metering device is positioned right above a 1 st line and a 3 rd line crucible, 82308230, and if the MCU controller receives the sensing signals of the 1 st line sensor and the N line sensor, the acid metering device is positioned right above a 1 st line and an N line crucible; if the MCU controller receives the sensing signals of the 2 nd line sensor and the 1 st line sensor, the acid adding metering device is positioned right above the 2 nd line 1 st line crucible, if the MCU controller receives the sensing signals of the 2 nd line sensor and the 2 nd line sensor, the acid adding metering device is positioned right above the 2 nd line crucible, if the MCU controller receives the sensing signals of the 2 nd line sensor and the 3 rd line sensor, the acid adding metering device is positioned right above the 2 nd line 3 rd line crucible, \8230, if the MCU controller receives the sensing signals of the 2 nd line sensor and the N th line sensor, the acid adding metering device is positioned right above the 2 nd line N line crucible; if the MCU controller receives the induction signals of the 3 rd row inductor and the 1 st row inductor, the acid adding metering device is positioned right above the 3 rd row and the 1 st row crucibles, if the MCU controller receives the induction signals of the 3 rd row inductor and the 2 nd row inductor, the acid adding metering device is positioned right above the 3 rd row and the 2 nd row crucibles, if the MCU controller receives the induction signals of the 3 rd row inductor and the 3 rd row inductor, the acid adding metering device is positioned right above the 3 rd row and the 3 rd row crucibles, \ 8230, if the MCU controller receives the induction signals of the 3 rd row and the 3 rd row inductors, \\\8230The acid adding metering device is positioned right above the 3 rd row and the Nth row of crucibles according to sensing signals of the reactor and the Nth row of sensors; if the MCU controller receives the induction signals of the M-th line inductor and the 1 st line inductor, the acid adding metering device is positioned right above the M-th line crucible in the 1 st line, if the MCU controller receives the induction signals of the M-th line inductor and the 2 nd line inductor, the acid adding metering device is positioned right above the M-th line crucible in the 2 nd line, if the MCU controller receives the induction signals of the M-th line inductor and the 3 rd line inductor, the acid adding metering device is positioned right above the M-th line crucible in the 3 rd line crucible in the M-th line, \8230, if the MCU controller receives the induction signals of the M-th line inductor and the N-th line inductor, the acid adding metering device is positioned right above the M-th line crucible in the N-th line crucible; the position of the acid metering device is determined and is denoted as P xy ；P xy Showing the acid dosing device directly above the crucible in the x-th row and the y-th column, x =1, 2, 3, \8230;, M, y =1, 2, 3, \8230;, N;
s12, judging the height of the acid adding metering device by the MCU, and if the acid adding metering device is positioned at a safety position, executing initialization; if the acid adding metering device is located at the acid adding position, the MCU controller sends a forward rotation control command to the Z-axis motor to shorten the load line of the Z-axis motor, the Z-axis motor stops working after the acid adding metering device returns to the safety position, and initialization is completed at the moment.
In a preferred embodiment of the present invention, step S2 includes the following steps:
s21, determining the position of the crucible to be added with acid, and recording the position as P' x′y′ ，P′ x′y′ Indicating that the acid dosing device is to be moved directly over the x 'row, y' column crucibles, x '=1, 2, 3, \ 8230 \ 8230;, M, y' =1, 2, 3, \ 8230; \ 8230;, N;
s22, judging the size relationship between x' and x:
if x' = x; the X-axis motor 4c does not operate; executing the next step;
if x' > x; the MCU controller sends a forward rotation control command to the X-axis motor 4c to move the X-axis motor to the right; returning to step S22;
if x' < x; the MCU controller sends a reverse control command to the X-axis motor 4c to move it to the left; returning to step S22;
s23, judging the size relationship between y' and y:
if y' = y; the Y-axis motor 3b does not operate; executing the next step;
if y' > y; the MCU controller sends a forward rotation control command to the Y-axis motor 3b to enable the Y-axis motor to move backwards; returning to step S23;
if y' < y; the MCU controller transmits a reverse control command to the Y-axis motor 3b to move it forward; returning to step S23;
and S24, the MCU controller sends a reverse rotation control command to the Z-axis motor to enable a load line of the Z-axis motor to extend, and the Z-axis motor stops working when the acid adding metering device descends to an acid adding position.
In a preferred embodiment of the present invention, step S3 includes the following steps:
s31, the MCU controller sends an opening control command to the valve 4e, and the valve 4e is opened;
s32, the MCU controller sends a work control command to the acid adding pump, and the acid adding pump works;
s33, the MCU controller obtains the real-time flow value collected by the flowmeter 4d, and judges whether the acid amount dropped into the crucible by the acid adding metering tube 4 is equal to a preset acid adding threshold value:
if the acid amount dropped into the crucible by the acid adding metering tube 4 is equal to the preset acid adding threshold value, executing the next step;
if the acid amount dropped into the crucible by the acid adding metering tube 4 is less than the preset acid adding threshold value, returning to the step S33;
and S34, the MCU controller sends a stop working control command to the acid adding pump, and the acid adding pump stops working.
In a preferred embodiment of the present invention, the method for returning the acid metering device to the safe position in step S4 is:
and when the acid adding metering device rises to a safe position, the MCU controller sends a work stopping control command to the Z-axis motor, and the Z-axis motor stops working.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The system is characterized by comprising an electric hot plate (5) and a placing plate (1) matched with the electric hot plate and capable of being placed on the electric hot plate (5), wherein M x N limiting holes (1 a) matched with a crucible and used for fixing the crucible are uniformly distributed in the placing plate (1), M and N are positive integers larger than or equal to 1, the placing plate (1) is provided with an acid adding device, the acid adding device comprises a suspension (2), the suspension (2) comprises door-shaped frames which are oppositely arranged and positioned at the left side and the right side of the placing plate, the top surfaces of cross beams (2 b) of the door-shaped frames at the left side and the right side are respectively and concavely provided with guide rails extending forwards and backwards, the guide rails are respectively a left guide rail and a right guide rail, M row inductors are arranged on the left guide rail or the right guide rail, slide rails (3) extending leftwards and rightwards are arranged between the cross beams (2 b) at the left side and the right side, N column inductors are arranged on the slide rails (3), two ends of the slide rails (3) are respectively connected in the guide rails in a sliding manner through a travelling wheel (3 a), and a Y shaft (3 a motor (3 b) is arranged to drive a travelling wheel (3 a) to move forwards and backwards and forwards;
a rack extending leftwards and rightwards is arranged on the top surface of the sliding rail (3), a gear (4 b) is meshed on the rack, the gear (4 b) is provided with an X-axis motor (4 c), an acid adding metering device is arranged below the sliding rail (3), and the acid adding metering device is hung below the gear (4 b);
the heating signal control end of the MCU controller is connected with the heating signal input end of the electric heating plate (5), the acidification signal control end of the MCU controller is connected with the acidification signal input end of the acidification metering device, the front-back movement signal control end of the MCU controller is connected with the positive and negative rotation signal input end of the Y-axis motor (3 b), and the left-right movement signal control end of the MCU controller is connected with the positive and negative rotation signal input end of the X-axis motor (4 c);
the sensing signal output end of the M-th row sensor is connected with the M-th sensing input end of the MCU controller, wherein M =1, 2, 3, \8230, the sensing signal output ends of the M and N-th column sensors are connected with the N-th sensing input end of the MCU controller, and N =1, 2, 3, \8230, N.
2. The electric hot plate rapid digestion system according to claim 1, wherein the acid adding metering device comprises an acid adding metering pipe (4), the acid adding metering pipe (4) is communicated with the acid storage tank (7) through an acid adding pipe, and the acid adding pipe is provided with an acid adding pump, a valve (4 e) and a flow meter (4 d);
the acid adding signal control end of the MCU controller is connected with the working signal input end of the acid adding pump, the signal input end of the valve (4 e) is connected with the valve signal control end of the MCU controller, and the flow signal output end of the flowmeter (4 d) is connected with the flow signal input end of the MCU controller.
3. The electric hot plate rapid digestion system according to claim 1, characterized in that a liquid monitoring device (6) is installed on the suspension (2), and the data output end of the liquid monitoring device (6) is connected with the liquid monitoring data input end of the MCU controller.
4. The system for rapidly digesting the electric hot plate according to claim 1, wherein the acid adding metering device is provided with connecting lugs (4 a) which are positioned at the front side and the rear side of the slide rail (3), and the two connecting lugs (4 a) are rotatably connected at the front end and the rear end of a rotating shaft of the gear (4 b), so that the acid adding metering device is hung below the gear (4 b) and is driven to move left and right through the gear (4 b);
or the up-down lifting device is provided with connecting lugs (4 a) positioned at the front side and the rear side of the sliding rail (3), and the two connecting lugs (4 a) are rotatably connected to the front end and the rear end of a rotating shaft of the gear (4 b), so that the up-down lifting device is hung below the gear (4 b) and is driven to move left and right through the gear (4 b); an acid adding metering device is arranged on the up-down lifting device.
5. The electric hot plate rapid digestion system according to claim 4, characterized in that the up-down lifting device comprises a horizontal mounting plate arranged at the end of the connecting support lug (4 a), a Z-axis motor is arranged on the horizontal mounting plate, the up-down moving signal control end of the MCU controller is connected with the positive and negative rotation signal input end of the Z-axis motor, a load line is arranged on the rotation driving end of the Z-axis motor, and the other end of the load line is connected with the acidification metering device.
6. The rapid digestion system according to the electric hot plate of claim 2, characterized in that the bottom ends of the upright posts (2 a) of the gantry are detachably connected to the placing plate (1).
7. The electric hot plate rapid digestion system according to claim 3, characterized in that the top surface of the placing plate (1) is provided with a positioning hole for inserting the bottom end of the upright column (2 a), the side edge of the placing plate (1) is transversely provided with a threaded hole corresponding to the positioning hole, the threaded hole is communicated with the positioning hole, the threaded hole is internally threaded with a tightening bolt (2 c), and the upright column (2 a) is tightened in the positioning hole by the tightening bolt (2 c) to realize installation.
8. The rapid digestion system according to the electric hot plate of one of the claims 1 to 7, characterized in that the liquid monitoring device (6) is a camera or a temperature detector;
when the liquid monitoring device (6) is a camera, the image data output end of the camera is connected with the liquid monitoring image data input end of the MCU controller;
when the liquid monitoring device (6) is a temperature detector, the temperature data output end of the temperature detector is connected with the liquid monitoring temperature data input end of the MCU controller;
or/and the placing plate (1) is made of polytetrafluoroethylene;
or/and the X-axis motor (4 c), the Y-axis motor (3 b) and the Z-axis motor are all stepping motors.
9. The working method of the electric hot plate rapid digestion system is characterized by comprising the following steps of:
s1, initializing a system;
s2, the MCU controller controls the acid adding metering device to move to the position right above the crucible to be added with acid;
s3, after the acid adding metering device moves to the position right above the crucible to be added with acid, the MCU controller controls the acid adding metering device to add acid into the crucible to be added with acid;
s4, after the acid adding metering device finishes adding acid into the crucible to be added with acid, the acid adding metering device returns to a safe position;
and S5, after all the crucibles are filled with the acid, the MCU controller sends a heating work control command to the electric heating plate (5), and the electric heating plate (5) heats the crucibles.
10. The operating method of an electric hot plate rapid digestion system according to the claim 9, characterized in that the step S1 comprises the following steps:
s11, respectively receiving sensing signals of M row sensors and N column sensors by the MCU controller, and determining the position of the acid adding metering device;
s12, the MCU judges the height of the acid adding metering device, and if the acid adding metering device is located at a safety position, initialization is executed; if the acid adding metering device is located at the acid adding position, the MCU controller sends a forward rotation control command to the Z-axis motor to shorten the load line of the Z-axis motor, the Z-axis motor stops working after the acid adding metering device returns to the safety position, and initialization is completed at the moment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211143189.0A CN115508178A (en) | 2022-09-20 | 2022-09-20 | Electric heating plate rapid digestion system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211143189.0A CN115508178A (en) | 2022-09-20 | 2022-09-20 | Electric heating plate rapid digestion system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347596A (en) * | 2023-12-05 | 2024-01-05 | 山东益程建设工程有限公司 | Geological experiment testing device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347596A (en) * | 2023-12-05 | 2024-01-05 | 山东益程建设工程有限公司 | Geological experiment testing device and method |
| CN117347596B (en) * | 2023-12-05 | 2024-02-20 | 山东益程建设工程有限公司 | Geological experiment testing device and method |
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