RU2037760C1 - Sintering trolley of conveyor machine - Google Patents

Abstract

FIELD: metallurgy. SUBSTANCE: sintering trolley comprises frame body with side walls, support beams with upper and lower platforms, stiffener ribs and removable bars installed on the platforms and having convex upper surface of their heads. A longitudinal stiffener rib has an upper horizontal platform disposed in the plane of the upper platforms of support beams being rigidly connected thereto while the platforms of the stiffener ribs carry bars on both sides. Said bars consist, each, of two halves with convex surface of the head and installed so that their upper halves are in tight contact with each other and are interconnected by retainers. EFFECT: improved design. 4 dwg

Description

 The invention relates to the field of production of agglomerated raw materials in the black, color and other industries, namely, to the design of sintering and firing conveyor machines.

 Known sintering trolleys of conveyor machines containing a frame body with dash walls located between them by the extreme and intermediate (s) support beams with upper and lower platforms, a longitudinal stiffener (s) and removable grates installed on the sites of the support beams with a spherical upper surface of their heads .

The disadvantages of the known solutions are:
significant metal consumption of sintering trolleys, reaching 50% of the total metal consumption of roasting and sintering machines, which significantly increases their cost;
insufficient resistance of the podkolosniki beams, whose service life is limited by their permissible one-time deflection, due to the influence of thermal stresses, as a result, the coefficient of use of the equipment of the machine, its specific productivity decreases, the cost of metal for redistribution increases; the service life of the trolleys is determined by the thermal fatigue failure of the support podkolosnikovyh beams that occur in each cycle of heating the conveyor belt in the working area and cooling on the idle branch;
a significant height of the frame casing due to the need for a free set of grates along the length of the sintering trolleys, at the same time, a significant height of the casing causes a significant temperature difference along the height of the beams, i.e. increase in temperature stresses and accelerated failure;
the location of the longitudinal stiffeners on a limited height section of the trolley body, which also reduces their reliability and durability;
the absence of metal frame protection systems for the frame body, in particular stiffeners, from the direct effects of radiant heat fluxes and from the influence of hot heat carrier, which also reduces the life of the sintering carts.

 The prototype is a sintering cart of conveyor machines containing a frame body with dash walls located between them by the extreme and intermediate support beams with upper and lower platforms, a longitudinal stiffener (s) and removable grates with spherical upper surfaces mounted on the support beam platforms their heads.

 The disadvantages of this device are listed above.

 The invention is aimed at reducing the height of the bodies of the sintering trolleys, their metal consumption and to increase mechanical strength.

 Sintering trolleys of conveyor machines contain a frame body with dash walls, located between them by the extreme and intermediate (s) support beams with upper and lower platforms, a longitudinal stiffener (s) and removable grates with spherical surfaces of their heads mounted on the platforms. On the frame casing, the longitudinal rib (s) is made of a height equal to the height of the support beams, and is rigidly connected to them. Grates are installed on the longitudinal rib, made in the form of two parts cut along the vertical axis, with the spherical surface of their heads and installed adjacent to the upper hemispheres adjacent to each other, and these hemispheres are connected to each other by clamps.

 The essence of the invention is to increase the rigidity of the frame body of the sintering carriage with a massive stiffener located along the entire height of the body (along its longitudinal axis or parallel to the axis on both its sides) with a stiffener closed at the top and two grates around the rib with hemispherical heads adjoining each other.

 The proposed sintering trolley has the following distinctive features.

 Lowering the height of the sintering trolleys is ensured by reinforcing it with a transverse stiffener located at the entire height of the trolley body, and by eliminating the passage of the grates during their collection (increasing the freedom to set grates). To do this, a longitudinal stiffener (if necessary, there may be several) is performed with the upper horizontal platform, which is located in the same plane with the upper platforms of the supporting armrest rails. The upper platform of the ribs are made with a width equal to the width of the ribs. The rib itself is placed over the entire height of the body of the sintering trolley. The stiffener is connected to the support beams and is integral with the frame body. Another constructive design does not solve the tasks.

 The stiffeners are blocked from above with grates, protecting the metal from direct radiation and overheating and eliminating the possibility of spillage of little things under the grate. These grid-irons are made in the form of half-girders; the grid-iron with a spherical head is conventionally cut into two halves along its vertical-longitudinal axis and two half-girders with a hemispherical head are obtained (these grid-irons are manufactured in addition to the main ones). Grid-irons are installed on the upper platform of the stiffening ribs with the adjoining upper hemispheres to each other. The grate legs adjoin directly to the side platforms of the ribs, i.e. on the stiffening ribs are placed the grate that flows around them.

 To eliminate the rotation of the grid-irons with a hemispherical head and increase the reliability of protecting stiffeners from direct temperature effects, the hemispheres are interconnected by clamps, usually by axes (through openings in the hemispheres). Instead of axles, other fasteners may be used.

 In Fig.1, 2 and 3, a front view, top and side, respectively; figure 4 section aa in figure 1.

 The sintering trolley consists of a frame case 1 with dash walls 2, support beams 3, stiffeners 4 and removable grates with a spherical 5 and hemispherical 6 heads and legs 7 of the grate. Hemispherical heads are interconnected by clamps 8.

 Work (set) of the device. On the sintering trolleys, first are the grate with hemispherical heads. These grates are placed on the upper platforms of the stiffeners and interconnected by axes (clamps) to prevent the rotation of the grates due to the displaced center of gravity. After installing the grate on the stiffening ribs on the sintering car set the grate of a traditional shape with a spherical head. The sintering trolley is ready for use.

 The application of the invention allows to reduce the temperature head along the height of the sintering trolleys and, as a result, their height, lower the metal consumption, increase the durability of the trolleys and increase the utilization rate of all equipment.

Claims (1)

 CONVEYOR MACHINE SPECIAL TROLLEY containing sideboards, a frame consisting of extreme and at least one intermediate podkolosnikovy beams having upper and lower supporting platforms and rigidly connected with longitudinal stiffeners, removable grates with a convex working surface of the heads in cross section and bearing surface on the upper supporting areas of the podkolosnikovyh beams, characterized in that the upper horizontal platform of the ribs of stiffness is located at the level of the upper platforms of the podkolosnikovy beams, and on culture beds stiffeners flowing around them are located on both sides of the grate elements which are designed as adjacent to one another longitudinal halves of the main grate, while their heads are interconnected latches.

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