SU1317235A1 - Incinerator bar screen - Google Patents

Abstract

The invention relates to a power system, in particular to devices for the incineration of household waste. The purpose of the invention is to increase the combustion efficiency and reliability of the roller grid. The roll grille C / goi contains frame 1 with rolls 2 mounted on it and air supply nozzles 3 for rolls. Each roll is equipped with a drive 6, which provides him with a rotational reciprocating motion. The roll has a protrusion 5, one side of which coincides with the surface of the roll, and the other is bounded by a generator directed at an angle of 25-55 °. Throughout the entire length of the roll in its lower part, a hole is made to remove slag and ash, as well. Hollow rods 8 are placed between the rollers with guide nozzles 9 installed at an angle of 30-60 to the axis of the rods. Loosening rods, lifting and lowering, actively loosen the layer of burning waste, blowing it through the air through the guide nozzles 9, 2 Cp. f-ly, 1 ill. ffff / tUM i (L fC 9 BP

Description

The invention relates to a power system, to devices intended for the incineration of unsorted municipal solid waste, as well as not to other types of industrial waste, and can be used in communal households and industry.

The purpose of the invention is to increase the efficiency of waste burning, as well as increase the reliability of the lattice.

The drawing shows a roll grill for waste incineration.

The roll grille has a frame 1 with rollers 2 mounted on it, nozzles 3 for supplying air for rolls; The rolls 2 are made in the form of horizontal hollow cylinders with holes 4 and protrusions 5, one side of which coincides with the surface of the roll, and the other is limited to a generatrix running at an angle from 25 to 55 to loosen the waste. Each swath is provided with a drive 6, and in the rolls seals 7, hollow expansion rods 8 are mounted with an individual drive with guide nozzles 9 installed at an angle from 30 to 60 ° to the axis of the rods.

An individual drive provides each roll with a rotational reciprocating motion, and the speed in the direction of fuel flow (translational motion) is 1.5–2 times greater than the speed of return motion. A protrusion is made on the surface of the roll facing the fuel layer, one side of which coincides with the surface of the roll, and the other is limited by a generatrix running at an angle of 25 to 55 ° (the angle is measured between the tangents drawn from one point of the roll surface and the surface of the protrusion ) .. The protrusion is used for loosening and transporting waste. Along the entire length of the VA: block, made in the form of a horizontal canopy of the cylinder, in its lower part, facing the devices for removing slag and ash, there is an opening for removing slag and ash. Between the rollers hollow loosening rods are installed with an individual drive ensuring their raising and lowering in the required sequence. The cavity of the rods is supplied with air, which is guided through special guide nozzles installed at an angle from 30 to 60 ° to the rod axis.

into the layer of burning, waste, increasing the efficiency of the process of burning waste The installation angle of the nozzles is selected depending on the height of the waste layer according to the formula

oi

Where

do

doH30 ° n.

at

 o height

H

0

five

0

installation angle

the height of the layer H,

minimal

layer according to grief conditions

neither;

existing height. Valkova lattice works as follows.

The burning waste falls on the rolls 2 of the roll grid and the protrusions of the five rolls are picked up during their rotational translational motion. The air through the nozzles 3 and the roll hole 4 passes to the layer of burning waste, while the cooling roll 2 is cooled simultaneously. Slag, (entering the rolls, is poured out through

hole 4 and enters the slag removal system.

The loosening rods 8 installed between the rollers, rising and falling, actively loosen the layer of burning waste while blowing air through the nozzles 9, the angle of which to the axis of the rods can vary from 30 to depending on the thickness of the fuel layer. When the angle of inclination of the guide nozzles is smaller or larger than these, the penetration of air in the layer of burning waste deteriorates.

If there are protrusions on the rolls, one side of which coincides with the surface of the roll, and the other is limited to a generatrix running at an angle from 25 to 55, the transportation and loosening of incinerated waste is improved. 5 At angles greater than 55 °, the transportation of waste deteriorates, and at angles less than 25, the loosening of burning waste is disturbed.

The installation on each roll of the drive 0 (mechanical or hydraulic), which provides it with rotational feos-back and forth movement with a speed in translational movement 1.3-4 times the speed of returning movement, improves the conditions of descent and mixing of waste on the grid.

Hollow opening rods installed between the lattice rolls, raising and lowering the required

.five

 0

313

In this mode, the layer of burning waste is loosened, and the supply of air waste through the guide nozzles to the burning layer of the waste layer improves the combustion process. All this increases the efficiency of burning waste on the roller grid and the efficiency of the furnace. The presence of a hole along the entire length of the roll allows, without compromising the stove and disassembling of the rolls, to remove ash and slag, which increases the reliability of the roll grid.

Claims (3)

1. A roll grill of a waste incinerator containing a frame with rolls mounted on it, characterized in that, for the purpose of the Editor, K. Voloshchuk Compiled by T. Lepakhina Tehred L. Oliynyk Proofreader M. Pojo Order 2D08 / 34Discount 494Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 .354 To increase the efficiency of waste burning, each roll is provided with a rotary reciprocating drive, with a protrusion being made on the roll, the outer surface of which is bounded by an angle of 25 to 55 °. 2. The lattice according to claim 1, of which is, in order to increase the reliability of the roller lattice; ki, along the entire length of the roll in its lower part a hole is made to remove slag and ash. 3. Lattice on PP. 1 and 2, it is equipped with hollow rods placed between the rollers with guide nozzles set at an angle of from 30 to 60 to the axis of the rods.