CN2085943U

CN2085943U - Refractory brick with airflow orifice

Info

Publication number: CN2085943U
Application number: CN 90213585
Authority: CN
Inventors: 张自助; 李腾
Original assignee: CHANGCHENG ENVIRONMENT PROTECTION EQUIPMENT PLANT SHENYANG CITY
Current assignee: CHANGCHENG ENVIRONMENT PROTECTION EQUIPMENT PLANT SHENYANG CITY
Priority date: 1990-07-16
Filing date: 1990-07-16
Publication date: 1991-10-02

Abstract

The utility model relates to a refractory brick with wind holes. The cross section of the refractory brick forms a fan shape. The wind holes are arranged from a small end face to the fan-shaped cross section of a top face. The diameters of the wind holes are 15-45 mm. Included angles of the wind holes and the horizontal direction on an inward concave face are 2 DEG-25 DEG. Included angles of the wind holes and the horizontal direction on the fan-shaped cross section of the top face are 9 DEG-26 DEG. The reserved wind holes of the utility model replace wind guiding pipes of steel pipes. The welding of the pipe materials of the steel pipes and discharge pipes are omitted. The abuse that the steel pipes guide the wind is avoided. The service life of a furnace inner lining is extended. And the diameters and the angles of the wind holes are adjusted. The burning effect of a cyclone furnace or a burner can be optimum.

Description

Refractory brick with airflow orifice

The utility model relates to a kind of refractory brick, is applicable to cyclone furnace, the firing coal dust stove, and inner lining refractory block is applicable to the occasion of whirlwind coal-fired combusting device inner lining refractory block especially.

In the prior art, cyclone furnace, burner liner adopt refractory material to build by laying bricks or stones or pour into a mould more, and its secondary air channel is a steel pipe, in the refractory material that is laid in, this steel pipe secondary air channel, arrange the welding difficulty, be unfavorable for building by laying bricks or stones of backup lining brick, in addition, when stove or burner continuous operation after over one hundred hour, steel pipe burns out, and has a strong impact on normally being blown into of secondary wind, finally causes stove or burner cisco unity malfunction.

The purpose of this utility model is to overcome above-mentioned shortcoming of the prior art, designs a kind of refractory brick with the wind hole.

Accompanying drawing 1 is the structural representation of band wind hole refractory brick, and Fig. 2 is the front view of Fig. 1, and Fig. 3 is the vertical view of Fig. 1.

By reference to the accompanying drawings, narrate content of the present utility model:

Refractory brick described in the utility model is fan-shaped, directly is connected with the wind hole on it, and refractory brick inner concave radius R 1 is 230～470 millimeters, and outer concave R is 340～580 millimeters.The length size range is respectively: long: a ₁Be 165～220 millimeters, a is 195～260 millimeters; Wide: C is 113～226 millimeters; High: b is 110～230 millimeters.

Fig. 2 and Fig. 3 illustrate the wind hole site, wind orifice angle scope is: in the front view, the wind hole on the refractory brick inner concave and horizontal direction angle α be 2 °～25 °, its best angle is 5 °～8 °, in the vertical view, the wind hole on the fan-shaped section in refractory brick top and the horizontal direction angle be that β is 9 °-26 °, best angle is 11 °～15 °, wind bore dia φ is 15～45 millimeters.

Compare with prior art, the utility model has the advantages that: taken down steel pipe, overcome the disadvantage of bringing by the steel pipe wind-guiding, saved steel, removed welding procedure, the liner cost is reduced as airduct; The wind bore dia of band wind hole brick, wind orifice angle can change at an easy rate according to stove or burner needs, can make stove or burner combustion effect reach best.

Claims

A kind of refractory brick with the wind hole is made up of the refractory brick of the fan-shaped section that leaves the wind hole, it is characterized in that: refractory brick small end face radius R is 230～470 millimeters, and the large end face radius R is 340～580 millimeters, and the refractory brick length respectively is: long a ₁Be 165～220 millimeters, a is 195～260 millimeters; Wide c is 113～226 millimeters, and high b is 110～230 millimeters, and the wind hole is 2 °～25 ° at refractory brick inner concave and horizontal direction angle α, is 9 °～26 ° at fan-shaped section in refractory brick top and horizontal direction angle β, and the wind bore dia is 15～45 millimeters.