CN202037330U

CN202037330U - Nested carbon brick for casting iron

Info

Publication number: CN202037330U
Application number: CN2011200873423U
Authority: CN
Inventors: 张朋军; 陈长槐; 高斌; 徐阿宝
Original assignee: Shanghai Meishan Iron and Steel Co Ltd; Nanjing Meishan Metallurgy Development Co Ltd; Shanghai Meishan Baosteel Group Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd; Shanghai Meishan Iron and Steel Co Ltd; Nanjing Meishan Metallurgy Development Co Ltd; Shanghai Meishan Baosteel Group Co Ltd
Priority date: 2011-03-29
Filing date: 2011-03-29
Publication date: 2011-11-16
Anticipated expiration: 2021-03-29

Abstract

The utility model discloses a nested carbon brick for casting iron, which comprises a carbon brick body and a cast iron shell, wherein the carbon brick body and the cast iron shell both are in a nested integral structure. The carbon brick body is installed in the cast iron shell, and a yellow land layer is arranged between the carbon brick body and the cast iron shell. Lifting steel bars and a metal net are embedded in the carbon brick body, and the lifting steel bars extend out from two sides of the carbon brick body to be bent into lifting rings. By means of the structure, the nested carbon brick for casting iron is simple in technology, convenient to maintain, safe to use and long in service life.

Description

A kind of cast iron groove nest carbon brick

Technical field

The utility model relates to the blast furnace ironmaking field, particularly relates to a kind of cast iron groove nest carbon brick that is used to annotate the dress molten iron and prevents the molten iron seepage.

Background technology

Cast iron groove nest carbon brick is the equipment that is used to annotate the dress molten iron.In the blast furnace ironmaking process, after being transported into pig machine in the blast-melted torpedo jar of packing into, the torpedo jar of tumbling, molten iron just injects cast iron groove nest carbon brick, the heat flow rate per unit area of this partial molten iron is very high, the liner carbon brick of cast iron groove nest carbon brick is subjected to for a long time that molten iron washes away, melting loss takes place easily for oxidation and chemical erosion, takes place repeatedly to be burnt and the phenomenon that causes blast furnace stopping to stop production, and serious threat is to the safety on line operation of cast iron groove nest carbon brick.

At present, the inner surface of cast iron groove nest carbon brick is to be built by laying bricks or stones by some blocks of carbon bricks to form, and every adjacent two blocks of carbon bricks all have a brickwork joint.Because molten iron impacts cast iron groove nest carbon brick bottom for a long time, adds circulating of molten iron, molten iron infiltrates groove nest bottom after a period of time from the slit of carbon brick assembly unit, even it can be burnt, and seriously jeopardizes safety in production; Change the carbon brick that is burnt out in the cast iron groove nest carbon brick continually, cause the refractory material waste, and dust dances in the air, influenced environment, strengthen operator's labour intensity, reduced economic benefit of enterprises; It is long that this pin-connected panel cast iron groove nest carbon brick is not only built the time by laying bricks or stones, and service time is also long, and it is smooth and easy to have restricted production.

The utility model content

The technical problems to be solved in the utility model provides a kind of no brickwork joint, builds, keeps in repair facility by laying bricks or stones, the novel cast iron groove nest carbon brick of safe in utilization, long service life.

The utility model provides a kind of cast iron groove nest carbon brick, comprise carbon brick body and cast housing, it is characterized in that described carbon brick body and cast housing are groove nest shape overall structure, described carbon brick body is installed in the cast housing, and include the lifting reinforcing bar, described lifting reinforcing bar is embedded in the carbon brick body, and suspension ring are drawn and bent in the two ends of lifting reinforcing bar from carbon brick body both sides respectively.

As further improvement of the utility model:

Described cast iron groove nest carbon brick also includes one deck wire netting at least, and described wire netting is embedded in the carbon brick body of lifting reinforcing bar opposite side.

Described cast iron groove nest carbon brick lifting rebar surface is coated with pitch.

Described cast iron groove nest carbon brick includes the yellow ground layer, and described yellow ground layer is filled between carbon brick body and the cast housing.

The carbon brick that the utility model cast iron groove nest carbon brick uses is the whole brick of the groove nest shape of once-forming, original tens of hundred or even hundreds of bricks have been replaced with a brick, the many defectives of the many seams of original pin-connected panel cast iron groove nest carbon brick brick have been overcome on the one hand, realized cast iron groove nest carbon brick seamless process, prolong the service life of cast iron groove nest carbon brick greatly, guaranteed the safe and orderly of production; Save the heavy operation of building by laying bricks or stones on the other hand, saved the labour, improved the ironmaking economic benefit of enterprises; Make the maintenance of cast iron groove nest carbon brick become convenient unusually simultaneously.

Because described carbon brick body and cast housing are groove nest shape overall structure, the shape of carbon brick body and the inner wall shape of cast housing are as adaptive, after being installed to the carbon brick body in the cast housing, as long as an amount of yellow sand of filling between groove nest housing and carbon brick body, carbon brick just can be fixed on groove nest housing middle position more stablely.

Description of drawings

Fig. 1 is the cross section structure figure of this cast iron groove nest carbon brick.

Fig. 2 is the stereogram of the carbon brick body used of this cast iron groove nest carbon brick;

Fig. 3 is the carbon brick body vertical section structure figure that this cast iron groove nest carbon brick is used;

Fig. 4 is the carbon brick body cross-sectional structure figure that this cast iron groove nest carbon brick is used;

The member name is called among the figure:, 1-cast housing; 2-yellow ground layer; 3-wire netting; 4-lifting reinforcing bar; 5-suspension ring.

The specific embodiment

Below in conjunction with Figure of description the utility model is described.

Fig. 1 is the cross section structure figure of the utility model cast iron groove nest carbon brick, represents among the figure, and long-life cast iron groove nest carbon brick is made up of carbon brick body, yellow ground layer 2 and groove nest housing 1 successively, and yellow ground layer 2 is filled between cast iron groove nest carbon brick housing 1 and the carbon brick body.Both prevented effectively that molten iron from burning cast housing 1, and avoided accident to take place, strengthened the stability of carbon brick body in cast housing 1 again.

The carbon brick body structure that this metal trough nest carbon brick is used such as Fig. 2, Fig. 3, shown in Figure 4.Fig. 3 is this cast iron groove nest carbon brick with the vertical section structure figure of carbon brick body, buries underground in the carbon brick body and hangs reinforcing bar 4, and the two ends of lifting reinforcing bar 4 are stretched out from carbon brick body both sides respectively and bent to suspension ring 5.Described lifting reinforcing bar 4 can be embedded in any position in the carbon brick body; Described lifting reinforcing bar 4 is two, suspension ring 5 are concordant with the both sides top edge of carbon brick body, by on carbon brick body dual-side, being symmetrical arranged paired suspension ring 5, made things convenient for the handling of carbon brick body, and make the carbon brick body in the handling process, become more steady, and be difficult for rotating, guaranteed production safety, improve work efficiency, also increased the intensity of carbon brick body simultaneously; This carbon brick body is treated the time spent shelving, and can use the grout off suspension ring, when needs use, throws off the cement of shutoff suspension ring again, and just handling is installed and used at any time.Fig. 4 cast iron groove of the present invention nest carbon brick is buried one deck wire netting at least with the cross-sectional structure figure of carbon brick body underground at the carbon brick body, and described wire netting (3) is embedded in the carbon brick body of lifting reinforcing bar (4) opposite side.Described wire netting is embedded in the carbon brick body of lifting reinforcing bar opposite side.Described wire netting preferably is laid on apart from the external wall of carbon brick 1/3rd positions, and this wire netting one deck can be that to throw the net also can be to combine by throwing the net more; Behind carbon brick body monolithic molding, handle with 600--800 degree temperature again.

The utility model cast iron groove nest carbon brick has remedied the defective of prior art, problem such as not only perfectly solved former cast iron groove nest carbon brick weak point in service life, easy to leak, refractory wear is many, service time is long, environmental pollution is serious also provides a kind of simple in structure and be suitable for the whole carbon brick of suitability for industrialized production for casting of cast iron groove nest carbon brick.

Claims

1. cast iron groove nest carbon brick, comprise carbon brick body and cast housing (1), it is characterized in that described carbon brick body and cast housing (1) are groove nest shape overall structure, described carbon brick body is installed in the cast housing (1), and include the lifting reinforcing bar (4), described lifting reinforcing bar (4) is embedded in the carbon brick body, and suspension ring (5) are drawn and bent in the two ends of lifting reinforcing bar (4) from carbon brick body both sides respectively.

2. cast iron groove nest carbon brick according to claim 1 is characterized in that also including one deck wire netting (3) at least, and described wire netting (3) is embedded in the carbon brick body of lifting reinforcing bar (4) opposite side.

3. cast iron groove nest carbon brick according to claim 1 and 2 is characterized in that described lifting reinforcing bar (4) surface is coated with pitch.

4. cast iron groove nest carbon brick according to claim 1 is characterized in that including yellow ground layer (2), and described yellow ground layer (2) is filled between carbon brick body and the cast housing (1).