JPH04286960A - Coals automatic analyzer - Google Patents

Abstract

PURPOSE:To enable each characteristic of coals to be analyzed efficiently without any need for a large installation space or an expensive large robot. CONSTITUTION:A robot 2 for handling a container for analysis 12 is mounted on a straight line rail 1 so that it can be moved freely and then a supply device 5 of a plurality of types of containers for analysis, a weighing device 6 for automatically weighing a sample by an amount needed for each analysis within a container for each analysis, an analysis device 7 of water content, ash content, and volatile content, an analysis device 9 of sulfuric, an element analysis device 11, and a device for measuring a calorific value 10 are placed within an operation range of an arm 3 of the robot 2 around this straight line rail 1.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an automatic coal analyzer capable of automatically analyzing the properties of coal, etc. on-line.

0002

BACKGROUND OF THE INVENTION It is necessary to regularly measure the properties of coal used in thermal power plants, such as its moisture content, ash content, volatile content, sulfur content, and calorific value. For methods of measuring each of these properties, JIS M 8812, JIS M 8
813, etc., for example, regarding moisture, ash, and volatile content, a certain amount of sample is weighed into a specific analytical container, held in an electric furnace for a certain period of time, and then heated before and after heating. A method for measuring the change in mass of a sample is specified. However, all JIS methods require manual work, and each measurement takes a long time, making it impossible to measure the properties of coal in use online.

Therefore, as shown in Japanese Patent Application Laid-open No. 17159/1983, various analytical devices are arranged concentrically around a robot, and samples are automatically transferred to each of these analytical devices by rotation of the robot. An automatic coal analyzer that can be inserted and removed has been developed. However, this device requires a large installation space because various analytical devices are arranged concentrically around the robot, and it is also large because the robot's arm must be able to reach all the analytical devices. However, it had the disadvantage of having long arms and therefore requiring an expensive robot. Furthermore, this device had the disadvantage that the robot's movements were wasteful and the total analysis time was considerably longer due to the long movement time of the robot's arm.

0004

[Problems to be Solved by the Invention] The present invention solves the above-mentioned conventional drawbacks, and provides a method for efficiently analyzing various properties of coal without requiring a large installation space or expensive large robots. It was completed to provide an automatic analysis device.

[0005]

[Means for Solving the Problems] The present invention, which has been made to solve the above problems, includes a robot having an arm for handling analytical containers that is movably mounted on a straight rail, and a robot that handles an analysis container. Within the operating range of the surrounding robot arm, there are supply devices for multiple types of containers for analysis,
A weighing device that automatically weighs the amount of sample required for each analysis inside each analytical container, a moisture/ash/volatile analyzer, a sulfur analyzer, an elemental analyzer, and a calorific value measuring device. It is characterized by the arrangement of the following.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in more detail below with reference to illustrated embodiments. In FIG. 1, 1 is a linear rail with a length of about 2 m, and 2 is a robot that can automatically move on this linear rail 1 according to commands from a control device. The robot 2 may be small and has a hand 4 at the tip of its arm 3 for handling a container for analysis.

As shown in the figure, various analytical devices and the like are arranged around the linear rail 1 and within the range of movement of the arm 3 of the robot 2. Reference numeral 5 designates a supply device for analysis containers, 6 a weighing device, 7 a moisture/ash/volatile content analyzer, 9 a sulfur analyzer, 10 a calorific value measuring device, and 11 an elemental analyzer. In the embodiment, the moisture analyzer and the ash/volatile content analyzer are separate units, but they may be integrated. In this way, the container supply device 5 and the weighing device 6 are arranged adjacent to each other on the same side of the linear rail 1, and when considering the movement of the robot 2, moisture, ash, and It is preferable to arrange a volatile content analyzer 7, and arrange a calorific value measuring device 10, a sulfur analyzer, and an elemental analyzer 11 outside these devices. The reason will be explained later.

The container supply device 5 is a device for arranging a plurality of types of ceramic containers 12 used in each analysis device, and is provided at two locations on the left and right with a weighing device 6, which will be described next, in between. For example, containers for ash and volatile content analysis are arranged in the upper row on the left side, containers for calorific value measurement in the middle row, and containers for moisture measurement in the lower row. Also on the right side are containers for sulfur analysis. Many sets of these containers shall be prepared in advance. Each container 12 is then transferred by the hand 4 of the robot 2 to an adjacent weighing device 6 in a predetermined order.

The weighing device 6 is a device that automatically weighs the sample to be measured into each container 12 in the amount necessary for each analysis, and is composed of a vibrating hopper, a scale, a container moving device, etc. . The weighed containers 12 are then aligned on the side closer to the linear rail 1.

The moisture/ash/volatile content analyzer 7 has a container 12
The sample placed in the container is heated in an electric furnace with an automatic temperature control function, and the change in mass of the sample before and after heating is automatically measured to determine moisture content.
This is a device that analyzes ash and volatile content. These devices are in a position where the robot 2, which has taken out the container 12 from the weighing device 6, can insert the container 12 by simply reversing the arm 3 without moving much on the linear rail 1. This is to enable measurement to be started early since it takes time to measure moisture, ash, and volatile content.

The calorific value measuring device 10 is a device that sets a sample in a pressure-resistant container, fills it with oxygen, completely burns it in a water tank, and measures the calorific value from the amount of water temperature rise. The robot 2 also performs the supply and removal of samples to and from this pressure-resistant container. The sulfur analyzer 9 is a device that determines the sulfur content by heating a sample in a container 12 under predetermined conditions, absorbing the generated SO2 gas into a hydrogen peroxide solution, and titrating the sample. Furthermore, the elemental analyzer 11 itself is well-known,
This is a device that analyzes C, H, etc. in a sample. These analyzes can be performed in a shorter time than analyzes of moisture, ash, and volatile content, so the robot 2 that takes out the container 12 from the weighing device 6
is placed at a position where it must move on a straight rail 1.

0012

[Operation] In the automatic coal analyzer of the present invention configured as described above, first, the robot 2 moves a plurality of types of containers 12 from the container supply device 5 to the adjacent weighing device 6. A sample is weighed inside the container 12. Next, the robot 2 transfers the weighed container 12 to the moisture/ash/volatile content analyzer 7, which takes time to measure, and each device starts operating for analysis. Further, the robot 2 takes out the weighed container 12 from the weighing device 6 and takes it out from the linear rail 1.
After being moved above, it is inserted into the calorific value measuring device 10, the sulfur analyzer 9, and the elemental analyzer 11. When the analysis by each analyzer is completed in this way, the robot 2 moves on the linear rail 1 and takes out the analyzed container 12 from each device and moves it to the container disposal position.

[0013]

[Effects of the Invention] Since the automatic coal analyzer of the present invention is constructed as described above, it exhibits the following effects. - Since each analyzer is arranged around the straight rail 1, the entire analyzer can be housed in a long and narrow space, and the installation space can be reduced compared to the conventional arrangement in which each analyzer is arranged concentrically. - Since the arm of the robot 2 does not have to be long, a small and inexpensive robot 2 can be used, and equipment costs can be reduced. ■ Since all operations can be performed automatically, it is possible to analyze the properties of coal online. (2) By arranging each analyzer as in claim 2, it is possible to start the analysis in advance of those that require time to analyze, thereby shortening the overall analysis time.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the present invention.

[Explanation of symbols]

1 Straight rail 2 Robot 3 Arms 5 Container supply device 6 Weighing device 7 Moisture/ash/volatile content analyzer 9 Sulfur analyzer 10 Calorific value measuring device 11 Elemental analyzer 12 Container

Claims (2)

[Claims] Claim 1: A robot with an arm for handling analytical containers is movably mounted on a linear rail, and within the movement range of the robot's arm around the linear rail, multiple types of containers for analysis are installed. A container supply device, a weighing device that automatically weighs the amount of sample required for each analysis into each analysis container, and a moisture/ash/volatile content analyzer;
An automatic coal analyzer characterized by having a sulfur analyzer, an elemental analyzer, and a calorific value measuring device arranged. 2. A container supply device and a weighing device are arranged adjacent to each other on the same side of a linear rail, and the moisture/ash/volatile content analyzer, calorific value The automatic coal analyzer according to claim 1, further comprising a measuring device, a sulfur analyzer, and an elemental analyzer.