CN2876663Y

CN2876663Y - Refractory brick for rotary furnace lining

Info

Publication number: CN2876663Y
Application number: CN 200620050112
Authority: CN
Inventors: 贺新华; 李文辉; 王赛辉; 丁智清; 宁德乙
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2006-02-27
Filing date: 2006-02-27
Publication date: 2007-03-07
Anticipated expiration: 2016-02-27

Abstract

The utility model relates to a refractory brick for rotary furnace lining and thereon, the two combining faces, with the mounting position in accordance with the axis direction of the rotary kiln drum, are respectively provided with hook holes and hook concaves. The refractory brick of the utility model is characterized by short manufacturing cycle, easy production, high intensity and low manufacturing cost, thereby extending the service life and improving the thermal efficiency of the rotary kiln.

Description

Rotary kiln furnace lining refractory brick

Technical field

The utility model belongs to a kind of refractory brick, is specifically related to the architecture advances of rotary kiln furnace lining with refractory brick.

Background technology

The furnace lining of existing rotary kiln is built method commonly used basically by laying bricks or stones two kinds, and a kind of is the method that adopts common refractory brick to build by laying bricks or stones by fissure of displacement block or circumferential weld.This method has following deficiency: 1) arch brick size head breadth difference is little, and brick and brick associativity are poor, easily fall brick; 2) build appearance and size tolerance strictness by laying bricks or stones to brick; 3) the little difficulty of construction of brickwork joint is big, long construction period; 4) along with the prolongation of running time, the wear extent of brick acquires a certain degree, and the brick and the accident of subsiding easily just fall.Second method is the mode that adopts prefabricated anchoring refractory brick and water the material feeding combination, i.e. prefabricated anchoring refractory brick, and one is watered material feeding.This method also has following deficiency: 1) prefabricated anchoring refractory brick is that inner arrangement of reinforcement sponson and kiln shell weld together, and waters casting weldering anchoring piece earlier, the back cast, arrangement of reinforcement is nearer from the high-temperature region in the prefabricated anchoring refractory brick, it is big to conduct heat, and barrel temperature is increased, and radiation loss is big.2) coefficient of expansion of the thermal expansion of the interior arrangement of reinforcement in the prefabricated anchoring refractory brick and refractory material is inconsistent, and muscle expands prefabricated section is damaged, and influences the prefabricated section life-span; 3) fabrication cycle is longer, and manufacture craft is comparatively complicated, the cost of manufacture height.

Summary of the invention

The technical problems to be solved in the utility model is the shortcoming that overcomes above-mentioned existing common refractory brick and the existence of prefabricated anchoring refractory brick, provides a kind of manufacturing cycle short, produces simple, the intensity height, processing cost is low, can prolong rotary kiln service life, improves the refractory brick of the rotary kiln thermal efficiency.

Refractory brick of the present utility model has hook hole and hook concave surface on two faying faces consistent with the rotary kiln tubular axis direction of its installation site.On four faying faces of described refractory brick, adjacent two faces are provided with the wedge-shaped impression for concavo-convex engagement between brick and the brick, and two faces are provided with wedge-shaped bead in addition.Described refractory brick is that the cross section is the cuboid or the square of isosceles trapezoid.

The utility model can be fixed on the cylindrical shell by anchoring piece.Anchoring piece one end is provided with two hooks, hooks respectively in the hook hole of aforementioned adjacent two refractory brick.Because every brick is fixed by anchoring piece with cylinder of rotary kiln, the anchoring piece of feasible fixedly brick is far away from the high-temperature region, and is few by heat conducting thermal losses, improved the thermal efficiency of rotary kiln; It is that high-temperature roasting forms, and compares with existing prefabricated anchoring refractory brick, has the intensity height through behind the machine moulding that refractory brick is made, and the life-span is long, and refractory brick is with short production cycle, the advantage that processing cost is low.In addition, because two adjacent faying faces are provided with wedge-shaped impression on four faying faces of refractory brick, other two are provided with the wedge type flange, engagement is tight, good integrity, reduced the probability that causes the furnace lining large tracts of land to be damaged because a small amount of refractory brick is destroyed when being applied to rotary kiln, prolonged the service life of furnace lining, also increased the service life of whole rotary kiln, economic benefit is improved.

Description of drawings

Fig. 1 is a front view of the present utility model;

Fig. 2 is a left view of the present utility model;

The rotary structure schematic diagram that Fig. 3 builds by laying bricks or stones for refractory brick of the present utility model;

Fig. 4 is the A-A cutaway view of Fig. 3;

Fig. 5 is the partial enlarged drawing of Fig. 3.

The specific embodiment

As shown in Figure 1, 2, have hook hole 31 and hook concave surface 32 on the refractory brick 3 of the present utility model on two faying faces consistent of installation site with the tubular axis direction of rotary kiln.On four faying faces of refractory brick, adjacent two faces are provided with the wedge-shaped impression 33 for concavo-convex engagement between brick and the brick, and two faces are provided with wedge-shaped bead 34 in addition.Refractory brick 3 is the cuboid (also can be square) of isosceles trapezoid for the cross section.

Shown in Fig. 3,4,5, the applied rotary kiln of the utility model, comprise cylindrical shell 1, thermal insulation layer 2 and furnace lining, furnace lining is fixed on the cylindrical shell 1 by anchoring piece 4 by refractory brick 3, has hook hole 31 and hook concave surface 32 on two faying faces of refractory brick 3 upper shell axis directions.Anchoring piece 4 one ends are provided with two hooks 41, hook respectively in the hook hole 31 of aforementioned adjacent two refractory brick, and the other end of anchoring piece 4 is welded on the cylindrical shell 1 for welding body 42, and the interface of refractory brick 3 seals with pouring material 5 in a circumference.Water and be provided with the anchor studs 6 that is welded on the cylindrical shell 1 in the material feeding 5.

Claims

1, a kind of rotary kiln furnace lining refractory brick is characterized in that having on two faying faces consistent with the rotary kiln tubular axis direction of installation site on the described refractory brick hook hole and hook concave surface.

2, rotary kiln furnace lining refractory brick according to claim 1 is characterized in that on the described refractory brick that on four faying faces, adjacent two faces are provided with the wedge-shaped impression for concavo-convex engagement between brick and the brick, and two faces are provided with wedge-shaped bead in addition.

3, rotary kiln furnace lining refractory brick according to claim 2 is characterized in that described refractory brick is that the cross section is the cuboid or the square of isosceles trapezoid.