RU1787793C - Method of charging brick - Google Patents

Abstract

Usage: in the technological process for the production of magnesia refractory products during heat treatment (firing) of bricks. SUMMARY OF THE INVENTION: the method includes forming separate columns of bricks from the same layers, mirrored on each other, each of which is composed of a main row of bricks laid on an edge across the length of the layer and two rows of attached bricks laid along the length of the layer, the main rows bricks are placed with a tag t, determined from the expression, where I is the length of the brick, mm. n is a series of integers, for example 1, 2, 3, etc., t is the pitch of the bricks of the main series, mm, and the attached rows of bricks are shifted along their length in different directions by the value of C, determined from the expression, where C is the offset value of each attached row of bricks. 6 ill.

Description

The invention relates to the production of ceramic products and can be used in the technological process for the production of magnesian refractory products during the heat treatment (burning) of bricks into finished products.

There is a method of setting brick with separate stbbiks by laying on the bottom of the oven trolley two layers of bricks of normal size (230 x 115 x 65) mm on an edge, on which two layers of arch products (for example, 380 x 150x75) are laid on an edge, one layer is laid on them bricks of normal sizes on a die, on which two layers of arch products are laid on an edge, on top of the central part of the length of each with T-bar. a layer of bricks of normal sizes is laid on a die, and transverse rows of bricks of normal sizes are laid at the ends of the columns of LS, so that each ki1p-.

The pitch is supported by two adjacent posts. / ... . ......;. ,,,.......... .. .. However, such a cage, consisting of two product sizes, alternating in columns in height, is not promising for mechanizing the process of forming the cage. . -.:; .. ... /

There is a known method of brick laying by forming groups of brick and laying them with rotation of each subsequent group in height relative to the previous one by an angle of 90 °.

Such a single-branched cage is acceptable for the mechanization of formation, however, its stability against mechanical influences during movement of the oven carriage: in the workshop and in the tunnel furnace does not satisfy the production conditions, since the entire cage consists of separate columns up to 1 mm high with a square size of base (0.23 x 0.23) m.

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There is a known method of bricking by forming the same type of layers composed of the main series of bricks laid on an edge across the length of the layer and a number of attached bricks laid along the length of the layer.

Said layers are stacked with an angle of 180 ° relative to the previous layer. . . ;.

Such a single-branched cage is acceptable for mechanized formation, however, its stability is not sufficient, since the existing ratio of product sizes (230 x 115 x 65) mm does not provide reliable binding between the layers in height. ; : -.

The closest analogue (prototype) is the lower part of the cage, formed from the same layers, composed of the main series of bricks laid on the edge across the length of the layer and two rows of attached bricks laid along the length of the layer. Layers are stacked by 180 ° rotation relative to the previous layer.

The main disadvantage is that the stability of such a cage against mechanical stresses resulting from the movement of the furnace trolley around the workshop and in the tunnel furnace is insufficient, since reliable dressing between the layers in height is not ensured, which is dictated by the existing aspect ratio of products (230 x 115 x 65).

The aim of the invention is to improve the stability of the cages during firing and reduce labor costs.,

The goal is achieved in that in the known method, comprising the formation of separate columns from the same layers; stacked one on top of the other, each of which is composed of a main row of bricks mounted on an edge across the DM layer and two rows of attached bricks, p1zsp6lZhenyuh along the length of the layer, the brick setting is carried out in a new way: the main brick rows are placed with

step t determined from the expression

where I is the length of the brick, mm

p - p d integers, for example, 1, 2, 3 and

t D- .. .....-., .-, / ..., ....., .. ...

t is the step of the bricks of the main series, mm, and the adjoining rows of bricks displace hvDbyЈ: Ј ны ny by half a step.

In Fig. 1, a brick cage is shown on an oven trolley; in FIG. 2 - same view

sideways; FIGS. 3-6 illustrate the implementation of the method. .

The method is as follows. From raw brick, order-type layers are formed, consisting of the main row of bricks 1 and two adjoining rows of bricks 2. Odd and even layers of bricks are stacked vertically in a mirror

image to the specified height of the column. Columns on the hearth of the furnace

trolleys are placed with the long side along the direction of movement of the trolley. Between the columns along the front are left

clearances that form channels for the passage of coolant (hot gases) during firing in a tunnel kiln. With the aim of improving the heat transfer from the coolant to the fired products and the uniformity of their heating

there are gaps d between the bricks of the main row 1, which are made with dimensions (10 ... 12) mm.

An advantage of the invention is that the stability of the charge is ensured. ;. .- -; , .. :: Due to the use of the proposed cage, the process of forming packages of calcined refractory products on pallets for shipment to the consumer is greatly simplified. It is reduced to installing two half columns on the pallet, crimping them and wrapping them with metal tape, or packaging with shrink film. Packets formed in this way respond

Claims (1)

technical specifications OST 14-18-177-85 Packages of transporting refractory products, Formula of the invention The method of bricking by forming on a trolley separate columns of the same layers, laid mirror-on one another, each of which is made up of the main series of bricks installed on rib across length layer; and two rows of attached bricks located along the length of the layer, characterized in that, in order to improve the stability of the cage during firing and reduce labor costs, the bricks in the main rows are placed with a step t determined from the expression , mm, where I is the length of the brick, mm, p - arithmetic series of numbers and attached rows of bricks are shifted along their lengths in opposite directions by half a step. 5