RU34252U1 - Installation for testing solid fuel entering gondola cars - Google Patents

Description

Installation for testing solid fuel entering gondola cars.

The utility model devotes itself to the field of fuel quality control in the energy sector and is intended for use in punsgs for unloading solid fuels, such as coal, in thermal power plants.

Known, selected as a prototype, an installation for testing solid fuel coming in railway gondola cars, containing a sampler in the form of a grab suspended from a truck crane bridge, and sampler machine 1. The structure of installation 1, in addition, includes equipment for collecting several samples, taken by a grab from one open wagon, supplying the collected samples to the sample-cutting bag, taking the portion of the cut (crushed) fuel for laboratory chemical analysis and removing the remaining waste.

The disadvantage of installation 1 is the need for multiple taking and transferring fuel by the grab for sampling from one railway gondola in accordance with 2. This increases the downtime of the cars and often leads to a violation of the standard schedule for their separation. In addition, this deficiency slows down the fuel supply to the sample cutting machine and, therefore, reduces the yield of crushed fuel from it. This prevents the implementation of the input express quality control of the fuel, which requires a continuous layer of crushed coal with certain geometric dimensions.

The objective of the utility model is to expedite testing in accordance with the required 2 sampling scheme from open wagons, provide input express quality control of the selected fuel, and thereby increase the productivity of the installation.

Utility Model Essence

The subject of a utility model is a device for testing solid fuel entering gondola cars, comprising a sampler, a sampling machine, a first conveyor installed with the ability to move selected samples to a sampling machine, a second conveyor installed with the possibility of receiving fuel from a sampling machine and equipped with sensors for express analysis of fuel quality wherein the sampler is made in the form of a group of motor grabs mounted on the undercarriage of an overhead crane in accordance with the required location of the points of fuel selection from the gondola car.

This allows us to solve the problem of a utility model.

The utility model has development for special cases of its implementation.

One development is that the motor grabs of the sampler can be mounted on a frame suspended from the undercarriage of an overhead crane.

Another development is that the installation may contain a third conveyor, installed with the possibility of returning fuel from the second conveyor to the gondola.

Brief Description of the Drawings

Figure 1 shows the proposed installation, taking into account its development; figure 2 is the same side view.

Implementation of a utility model.

The installation is a stationary complex of equipment placed on a special frame mounted above the railway.

The figures show: a sampler 1, consisting of a group of motor grabs 1 mounted on a running trolley 2 of an overhead crane, a first conveyor 3, a sampling machine 4, a second conveyor 5, a third conveyor 6, sensors 7 express fuel quality control, open wagon 8.

Sample-cutting mapper 4, conveyor 5, on which sensors 7 are placed, and partially conveyor 6 are mounted in an enclosed space equipped with a bridge crane located along the railway line. The design of the installation may include a frame suspended from the trolley 2 for mounting grabs 1. Opening and closing of grabs 1 is carried out by individual motor-wing drives, and raising and lowering by a cable-block system (not shown in the drawings).

Each motor grab 1 allows you to select coal over the entire width of the railway gondola car 8, including three points provided 2.

In the initial position, the undercarriage 2 with motor grabs 1 stands on the side of the railroad track outside the rolling stock above the conveyor 3, which is mounted on the rear of the room for the preparation of fuel samples and communicates directly with the sample cutting map 4.

Loaded with coal, creeping agons are fed into the installation area. After the gondola has stopped, the undercarriage 2 together with the motor grabs 1 move in the direction of the selection position and stop above it.

Then the motor grabs 1 with fully sponged jaws are simultaneously lowered and introduced into the fuel loaded into the gondola car 8, then the jaws are closed, and contained in

grabs 1 fuel samples are raised, moved and unloaded to the conveyor 3, directing them to the sample-cutting machine 4.

In the machine 4 fuel samples pass a double stage of crushing. At the same time, a laboratory sample for chemical analysis is taken from the crushed fuel. The rest of the crushed fuel from the machine 4 enters the conveyor 5 and passes the input extess-quality control with the help of sensors 7 express control, continuously measuring the ash and moisture of the fuel moving along the conveyor 5.

From the conveyor 5, the crushed fuel falls onto the conveyor 6, which returns it to the gondola 8. In some cases (for example, when it is possible to directly deliver the crushed fuel by the conveyor 5 to the gondola), the conveyor 6 may not be installed.

The advantage of this installation is the sampling from the open wagon in one cycle, covering all points of sampling in accordance with 2, which reduces the sampling time, which is the main component of the downtime of the wagon before separation.

In addition, the technological equipment for sampling and sample preparation excludes some of the equipment available in prototype 1 (storage hopper, bucket sampler).

The storage bunker is eliminated by increasing the number of point samples at the same time, the total mass of which is equal to the cumulative mass of samples taken in 1 from one gondola in turn. In the proposed installation, all samples from one open wagon are simultaneously unloaded to conveyor 3, which feeds them directly to the sampling machine, which reduces the duration of the technological sample preparation process.

The bucket sampler is excluded from the technological cycle to obtain a continuous flow of crushed fuel with determined geometric dimensions, which is necessary for the operation of express control sensors.

Sources of information.

1.V.V. Trainio and js. Mechanization of testing coal from railway cars. TSNIGOIugol. Moscow, 1976, p. 7, fig. 2. Clamshell mechanized installation for the chess of the 40th anniversary of the Komsomol.

2. GOST 10742-71 “Brown, stone, combustible shale coals and coal briquettes. Methods of sampling and sample preparation for laboratory tests.

Claims (3)

1. Installation for testing solid fuel coming in open wagons, containing a sampler, sampler, a first conveyor installed with the ability to move the selected samples to a sampler, a second conveyor installed with the possibility of receiving fuel from a sampler and equipped with means for express analysis of fuel quality wherein the sampler is made in the form of a group of motor grabs mounted on the undercarriage of an overhead crane in accordance with the required location of points selection of fuel from a gondola car. 2. The installation according to claim 1, in which the motor grabs of the sampler are mounted on a frame suspended from the undercarriage of an overhead crane. 3. The installation according to claim 1, which contains a third conveyor installed with the possibility of returning fuel from the second conveyor to the gondola.