EA030045B1 - Furnace grate - Google Patents

Abstract

The invention relates to thermal engineering, and more particularly to furnace grate designs, and can be used in various furnace systems, in particular thermal generators. In a furnace grate design comprising grate bars and stoking members which are connected to an electric motor, according to the invention the stoking members are configured in the form of elements encompassing the grate bars and having depressions along their sides and are mounted for reciprocating motion on the shaft of a crank mechanism with an eccentric for each stoking member, thus providing for countermotion. The proposed furnace grate design, which is significantly simpler than the known prior art, makes it possible to improve the operation of the device and the possibility of repair.

Description

The invention relates to a power system, in particular to the designs of grates, and can be used in various combustion devices, in particular in heat generators. In the construction of the grate containing beam grates and shuruyuschy devices connected to an electric motor, according to the invention, shuruyuschie devices are made in the form of elements covering the girder grids with recesses on the sides, installed with the possibility of reciprocating motion on the crank mechanism shaft with eccentrics providing protivokhod. The proposed grate design, which is much simpler than the known analogs, makes it possible to improve the operation of the device and the possibility of repair.

030045 1

030045 1

030045

The invention relates to a power system, in particular to the designs of grates, and can be used in various combustion devices, in particular in heat generators.

A grateless grate is known, the web of which consists of alternating V-shaped and cross-grate, between which there are zigzag slots for the passage of blast air (a.s. 79825, class R 23 H17 / 12, op. 01/01/49). The figured shape of the grates is designed in such a way that they hook each other, creating a single structure. This will make it difficult to repair the grille, since to replace, for example, one grate, it will be necessary to remove the entire grille.

The grate of the firebox with a shuruyuschey plate is known, and it is equipped with grate plates falling and rising with the help of an eccentric (ed.St. 91770, cl. Р 23 Н9 / 06, op. 01.01.51). This grate has a complex structural solution. The presence of many moving parts at high temperatures in the firebox can cause them to break.

Also known grate, containing the beam grates installed with the possibility of rotation, and shuruyuschey bar. The design contains water-cooled pipes located between the grate bars and made straight or in the form of coils, while the upper tube generators are located in a plane lying below the working surface of the grid (ed. St. 1520304, cl. R 23 H9 / 10, op. 07.11.87 g.). The presence of a system of water-cooled pipes connected to the collectors greatly complicates the design and makes it difficult to carry out repair work.

The task of the invention is the development of the grate more simple design, ensuring efficient operation and ease of operation and repair.

For this purpose, in the construction of the grate, comprising beam grates and shuruyuschie devices, connected to an electric motor, according to the invention, the windings devices are made in the form of elements with grooves covering the beam grates, mounted with the possibility of reciprocating motion on the shaft of the crank mechanism with eccentrics for each shuruyu fixture with provision of protivokhod.

In the construction of the grate, the ratio of the length of the beam grate and the cocking device is 1: 0.9-0.95. The area of the notches of the wall fixture is 15-30% of the area of the wall fixture.

FIG. 1 of the drawing shows the proposed grate - side view, in FIG. 2 is a plan view, in FIG. 3 - general view. In the heating boiler 1, a grate 2 is installed, which has beam grates 3, for example, in the form of cylinders — pipes through which water is supplied through pipes 4, and drilling devices 5, made in the form of 3 beams covering the grate 3 over rigidly fixed grates 3, with notches on the sides 6. Water for cooling can be connected to the heating system, which will increase heat transfer, and can be independent.

The area of the notches 6 shuruyuschey devices 5 is 15-30% of its total area. Shuruyuschie devices 5 are installed with the possibility of reciprocating motion on the shaft of the crank mechanism 7, connected to the electric motor 8, and with eccentrics 9 on each shuruyuschey device 5 with the provision of protivokhod. To perform the stroke of the rigging device 5, the ratio of the length of the beam grate 3 and the screwing device 5 is 1: 0.9-0.95.

The work of the proposed design is as follows. In the boiler 1, fuel is fed to the grate 2, the electric motor 10 is switched on in the process of burning the fuel to shake off the ash, and through reciprocating movements of the drilling devices 5 in the backflow mode, and due to the grooves on their sides, the ash particles are effectively discharged.

Thus, the proposed grate design, which is much simpler than the known analogs, makes it possible to improve the operation of the device and the possibility of repair.

Claims (3)

CLAIM 1. A grate containing beam grates and shuruyuschie devices connected to an electric motor, characterized in that the shuruyuschie devices are made in the form of elements covering the beam grate with notches on either side, installed with the possibility of reciprocating motion on the shaft of the crank mechanism with eccentrics for each shuruyuschy item with providing protivokhod. 2. Grate according to claim 1, characterized in that the ratio of the length of the beam grate and shuruuschey device is 1: 0.9-0.95. 3. The grate according to claim 1, characterized in that the area of the excavation of the drilling device is 15-30% of the area of the drilling device. - 1 030045