JPS63168566A - Automatic analyzer for quality control of coal and water slurry - Google Patents

Abstract

PURPOSE:To achieve a higher analysis accuracy with the uniforming of analysis work, by a method wherein a robot is put in cooperation with an analyzer and a cleaner to analyze a sample continuously and the density of particle size of the sample are measured, and then, followed by the cleaning of a container. CONSTITUTION:A robot 1 is made work in cooperation with a analyzer 14 and a cleaner. With a stirring rod 10 held at a working end 2, a sample is agitated in a feed container 6 to prevent uneven density due to the settlement of powdered coal. A sample 22 in the container 6 is dried and placed on a plate of an electronic balance scale 11 to measure and analyze the density of the powdered coal contained in a coal.a water slurry with the scale 11. Then, the particle size of the sample is determined with a particle size analyzer 12, the sample is irradiated with laser light and the diffraction thereof is detected to examine a particle size distribution. Thereafter, the container 6 is inclined, cleaning water is jetted intermittently thereinto through a nozzle providing for a cleaner.dryer 16, and then, a hot air is blown to clean up and dry the container 6 automatically. This can reduce required labor for analysis work for the quality control of a coal/water slurry significantly while enabling quick analysis work.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an automatic analyzer used to evaluate the quality of coal and water scraps.

BACKGROUND TECHNOLOGY A coal/water slurry contains coal powder and water, and the concentration and viscosity of the coal/water slurry are measured, and the coal/water slurry is
It is necessary to measure the particle size of the coal powder contained in the water slurry to manage the quality of the coal/water slurry t1.

Conventionally, the work of stirring the sample as pre-treatment for analysis, the work of attaching and desorbing the sample to each analyzer, and the work of cleaning and drying the container used to store the sample used for analysis depended on manual labor. ing.

Problems to be Solved by the Invention With such prior art, a great deal of labor is required for analysis work, and sample analysis can only be repeated several times during the working day. Ta.

An object of the present invention is to provide an automatic analyzer for quality control of coal/water slurry that can reduce the labor required for sample analysis work and shorten the time required for analyzing each sample. It is to provide.

Means for Solving the Problems The present invention provides a method for moving the working end of a robot. @IJ within range,
Analyzers for measuring the concentration and viscosity of the coal/water slurry sample and the particle size of the coal powder in the sample were installed, as well as a means for cleaning the container containing the sample, and a robot, analysis II 1 and cleaning 1 were installed. ＝In collaboration with Dan,
This is an automatic analyzer for quality control of coal/water slurry that aims to continuously analyze samples.

Operation In accordance with the present invention, a container containing a sample is moved using a robot, and an analyzer is used to determine the concentration and viscosity of the sample as a coal/water slurry (without having to do any other work). The particle size of the coal powder contained in the sample is measured using an analyzer, and the container containing this sample is also cleaned using a cleaning means.Therefore, the analysis of the coal/water slurry can be carried out continuously. At the same time, robots can be used to carry out analytical work on the Union Army in a short period of time.

Embodiment FIG. 1 is a plan view of one embodiment of the present invention, and FIG. 2 is a simplified side view of a part thereof. The robot 1 has a working end 2 and has a plurality of axes (for example, six in this embodiment). The working axis 2 is indicated by reference numeral A in FIG.
Work can be performed within the movement range indicated by reference numeral A1 in the figure. This robot 1 includes a support 3, an arm t, 5, and the like.

In the moving ranges A and AI of the work end 2, a cart 7 for taking out the perforator 6 is provided so as to be movable along the rail 8 in the direction of the arrow 9. This trolley 7 is reference number 7.
At the position indicated by a, the operator moves upward in FIG. 1 with the supply container 6 storing a sample of coal/water slurry on board. A stirrer ( ) 10 is provided for stirring the sample in the supply container 6 . A dry electronic balance 11 is also arranged. Also, a particle size analyzer 12 for measuring the particle size of the sample.
will be provided. Furthermore, to measure and analyze the viscosity,
A constant temperature bath 13, a viscosity analyzer 14, and this viscosity analyzer 14
A washing/drying device 15 is provided for washing and drying the rotor used in the washing/drying device. A washing/drying machine 6 is provided for washing and drying the supply container 6. * A speedometer 17 that displays the rotational speed of the rotor in the viscosity analyzer 14, a printer 18 that displays the analysis results, a cathode ray g 19, an input keyboard 20, a processing circuit 21 that performs control calculations for the robot 1, etc. provided.

FIG. 3 is a simplified diagram showing the automated work procedure of the present invention. In step n 1 , from the trolley 7,
Supply chamber 2:6 in which the sample is stored by the working end 2
Receive. The state in which the supply container 6 is covered with ice on the trolley 7 is ti.
As shown in Figure S4.

In step 112, the stirring rod 10 is gripped by the working end 2 and the sample 22 in the supply container 6 is stirred to prevent the concentration from being uneven due to sedimentation of coal powder.
Distribute, for example, about 6 g of the sample 22 in the fG to the balance pan 23 of the RF and drying electronic balance 11 shown in FIG. Approximately 0.5 g of the sample is distributed, and then approximately 60 g of the sample is further distributed into the sample bottle 25, which is stored at room temperature/[13]. In this way, try to distribute trial j:F.

In step 113, the dry electronic balance 11 measures and analyzes the concentration of coal powder contained in the coal/water slurry. To do this, measure the 1 ri WO of the coal/water slurry in the balance pan 23, then heat the balance pan 23 with an electric heater to evaporate the liquid, and measure the i
Define the rK amount W1.

In this way, the concentration (W1/WO) is calculated.

In step n4, particle size analysis is performed by the particle size analyzer 12. This irradiates a sample with laser light, detects its diffraction, and examines the particle size distribution.

At the step port 5, the sample bottle 25 containing the sample is placed in the constant temperature bath 13, heated to a predetermined temperature, and kept at a constant temperature. Therefore, in step nG, the viscosity of the sample in the sample bottle 25 stored in the constant temperature [13] is measured using the viscosity analyzer 14 shown in FIG. To measure the viscosity, a rotor is inserted into the sample, and the reaction force or viscous resistance received by rotating the rotor is measured, thereby measuring the viscosity.

In step n7, as shown in FIG. 10, the supply container 6 is tilted and cleaned.6. 'f, the nozzle 27 installed in the dryer 1G intermittently injects cleaning water, then intermittently injects compressed air to blow water droplets, and then injects warm air to clean the supply container. 6. Automatically wash and dry.

The automatic analysis operation will be explained in more detail with reference to FIG. The analysis operation procedure shown in Figure r:n11 is formed by the operation of the robot 1, and Moe's No. 312N provides a simplified and easy-to-understand explanation of this series of operations. be.

Figure 11 (1) shows the operation of stirring the sample in the supply container G using the stirring bar 10, Figure 11 (2) shows the operation of the dry electronic balance 11, and Figure 11 (3) shows the particle size. The cleaning operation of the analyzer 12 will be explained. FIG. 11 (4) shows the particle size analysis operation of the particle size analyzer 12, and FIG. 11 (5) shows the cleaning operation of the rotor used in the viscosity analyzer 14 by the cleaning dryer 15. - Figure 11 (6) shows the operation of taking out the sample bottle 25 heated to a predetermined temperature from the constant temperature bath 13 and measuring the viscosity with the viscosity analyzer 14. FIG. 11 (7) shows a state in which the cleaning/drying operation of the supply container 6 is performed by the cleaning/drying device 1G.

FIG. 11(8) shows the viscosity analysis operation periods W 1 and Wla by the viscosity analyzer 14 and the sample concentration analysis period W 2 by the dry electronic balance 11. Particle size analysis period W2a and particle size analyzer 12 W3. It is a figure showing W3a. Referring to these drawings, in step r1 shown in No. 11[], one of the supply containers 6 in which the sample is stored on the stand +117 is taken out and stirred using the stirring wheel 10 as shown in the rjSs diagram of Moe. Stir as shown. In step r2, a part of the sample in the supply container G is distributed to the balance pan 23 of the dry electronic balance 11,
The balance pan 23 is stored and set in the dry electronic balance 11, and the dry electronic balance 11 performs an analysis operation for a time W2. The time W2 is approximately 30 minutes.

In step 3, a part of the sample in the supply container G is distributed and injected into the particle size analyzer 12.The particle size analyzer 12 analyzes the particle size of the coal powder, and the time is W3, and at this time 1'
JIW3 is, for example, about 15 minutes.

In step r4, the sample in the supply container 6 is transferred to the constant temperature layer 1.
3, and the sample bottle 25 is inserted into the thermostatic chamber 13 and set. The sample bottle 25 stored in the thermostatic chamber 13 in this way has, for example, 30
The mixture is heated at a constant temperature for 8 minutes. Reference mark r5tr? in FIG. 11 (7)? +r9+rll, r13, supply container 6
, the stirring rod 10, the particle size analyzer 12, the sample container 24, the sample container used in the viscosity analyzer 14, and the like are washed and dried in the manner shown in FIG.

@11 In step r6 shown in figure (5), 69
The sample container in which the sample used for the viscosity analysis was stored is taken out from the viscosity analyzer 14, and the sample container is washed and dried in step r7. In the period W4 between step r6 and step "7", the rotor used in the viscosity analyzer 14 is washed and dried by the rotor washing/drying device 15, and in step r8, the washing of the rotor is stopped and completed.

In step rlo, a sample is delivered from the sample container 24 in the particle size analyzer 12, washed and dried, and also for a period W.
In step 5, the sample is discharged from the passage of the sample in the particle size analyzer 12 and washed, and in step 12 the washing is completed.

Step 14 Now, move from the dry electronic balance 11 to the balance pan 2.
In step r15, the sample bottle 25 in the thermostatic chamber 13 is taken out and the sample is distributed into the sample container of the viscosity analyzer 14.
4 and set it.

Step r1G, rl? Now, the balance plate 23 and the sample bottle used in the viscosity analyzer 14 are washed and dried, respectively. In this way, a series of automated analysis tasks is completed. The analysis time for steps 1 to 17 is, for example, about 40 minutes, which greatly reduces labor and significantly reduces the time required for analysis by 5yJ.The operation steps performed after step r17 are , and are shown in FIG. 11 with the suffix a added thereto.

The present invention is applicable not only to quality control of coal/water slurry, but also to industrial molecules that handle liquids such as inks, raw materials for films and tapes, and cosmetics. can be used as a practitioner.

Effects As described above, according to the present invention, the labor required for analysis work for quality control of coal/water slurry can be reduced by 4'2) times, and the analysis work can be carried out quickly. This makes it possible to improve the manufacturing quality of coal/water slurry.

In the present invention, the labor can be reduced as described above, so it is possible to save labor and reduce the manufacturing cost. Furthermore, according to the present invention, by automating the analysis 14', it is possible to reduce variations in analysis accuracy due to individual differences among manufacturers, make the analysis work uniform, and improve the analysis accuracy.

[Brief explanation of the drawing]

1 is a plan view of an embodiment of the present invention, 21111J is a simplified side view of the robot 1 shown in 112I,
FIG. 3 shows the analytical work procedure of the present invention in simplified form 70-
Chart, the fourth factor is a perspective view of the vicinity of platform 1'ft7, the fifth
The figure is a sectional view showing the stirring operation using the stirring rod 10, FIG. 6 is a perspective view of the drying electronic balance 11, and FIG. 7 is a particle size analyzer 12.
FIG. 8 is a perspective view of the room temperature layer 13, FIG. 9 is a perspective view of the viscosity analysis 111-14, and FIG. FIG. 11 is a perspective view showing a series of steps for analysis work. 1...Robot, 2...Working end, 6...Supply '8
instrument, 7... Cart, 10... Stirring bar, 11... Dry electronic balance, 12... Particle size analyzer, 13... Room temperature layer, 14... Viscosity analyzer, 15...・Rotor cleaning/drying device 6.16... Washing/drying device, 23... Balance pan,
25... Sample bottle Agent Patent attorney Number of strokes Keiichi Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] Analyzers that measure the concentration and viscosity of the coal/water slurry sample and the particle size of the coal powder in the sample are placed within the movement range of the robot's working end, as well as means for cleaning the container that holds the sample. An automatic analyzer for quality control of coal/water slurry, characterized in that a robot, an analyzer, and a cleaning means work together to continuously analyze samples.