CN106147796A - 763 meters of coke oven lids of improvement, stove circle manufacture method - Google Patents

Abstract

763 meters of coke oven lids of a kind of improvement, stove circle manufacture method, it is characterized in that comprising the following steps: a is set up the steel plate of long a width of 100 × 75mm on the circumference of Lu Quan foundation ring by cross symmetry, the upper dimension of b bell is constant is still 625mm, under upper magnetic carbon steel cover plate, welding and assembling height is the anchoring piece of 80mm, the thermal insulation board of disk bottom cancellation, bottom size diameter is reduced, makes bottom become the circular hole of a diameter of 410mm, add the gap of itself and stove circle；Bell surrounding is mentioned and is changed 4 into, with symmetrical with cross point on bell circumference.It is easy to make that 763 meters of coke oven lids of the improvement of the present invention, stove circle manufacture method have bell, stove circle, making stove circle be difficult to loosen, bell is conveniently opened, is covered and close action, when taking off more than bell, clear graphite the operations such as coal aborning, eliminate stove circle vibrated, prevent the advantage smoldered, alter fire.

Description

763 meters of coke oven lids of improvement, stove circle manufacture method

Technical field

The present invention relates to a kind of coke oven lid, stove circle manufacture method, specifically, be 763 meters of coke oven lids of a kind of improvement, stove circle manufacture method.

Background technology

Seven 63 M carbonizing chamber of coke oven tops hole bell of coalingging is unfavorable for that automatic and artificial lid of taking off takes lid because of design reasons. bell and stove circle design gaps are too small, aborning bell high temperature flatulence of heat type, cause bell to be stuck in stove circle, take off lid difficulty.Simultaneously because the graphite in production process remains in stove circle inwall, during automatic cover bell, bell and stove ring gap are too small.Bell lid can be produced tight, affect the sealing of bell, make flue-gas in stove, flame scurry out, pollution environment.

Fig. 1 is the released state schematic diagram of known bell and stove circle, and Fig. 2 is the bonding state schematic diagram of known bell and stove circle.

Owing to needing to rotate bell when coal car automatic open and lid bell, with this, remaining coal at stove circle fire door or graphite are cleared up, or lid is manually taken off in employing, with manually clearing up the graphite at stove circle.During this, because rotating bell, when in producing tangential force, especially stove circle along stove circle inner periphery, graphite condenses more, bell rotational resistance is the biggest, and the tangential force that stove circle is subject to is the biggest.Cause stove circle forced vibration, loosen, impact and the sealing of surrounding castable refractory, cause stove circle surrounding to smolder and alter fire, adversely affect environment.When use manually carry out taking off lid cleaning graphite time, workman prize, take off, shovel, the operation such as smash also easily causes stove circle and is hit force vibration, is combined with castable refractory and loosens, poor sealing and the stove circle surrounding that causes is smoldered and is altered fiery problem, pollution environment.

The most known 763 meters of coke oven lids, stove circle manufacture method also exist above-mentioned all inconvenience and problem.

Summary of the invention

Instant invention overcomes shortcoming of the prior art, design through stove circle bell repeatedly, test and study, provide 763 meters of coke oven lids of improvement, stove circle manufacture method, can eliminate in production because of when taking off more than bell, clear graphite the operations such as coal stove circle stress shock and vibration and cause loosening, fire is altered in smoldering that seal failure produces, and eliminates the adverse effect causing environment.

In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions:

763 meters of coke oven lids of the improvement of the present invention, stove circle manufacture method, it is characterised in that comprise the following steps:

A, Lu Quan foundation ring circle sets up rectangular steel plates

The ironware that stove circle is internal diameter 540mm before improvement；Bell before improvement is up big and down small castiron housing, and inside is hollow, fills resistance to material；Bell top is 625mm magnetic carbon steel deck-plate, and bottom is the thermal insulation board of disk, is integrated with cast housing.A size of 535mm；

The corrective measure of stove circle is: set up the steel plate of long a width of 100 × 75mm on the circumference of Lu Quan foundation ring by cross symmetry, increase castable refractory pressure contacting surface to amass, under the effect of the castable of surrounding compacting, make stove circle more firm stable, when bell rotates and artificial sled takes off lid action, it is difficult to loosen；

B, bell are set up anchoring piece, are mentioned, improve the internal filling fire resisting material of bell

The corrective measure of bell is: for coordinating with stove circle, the upper dimension of bell is constant is still 625mm, under upper magnetic carbon steel cover plate, welding and assembling height is the anchoring piece of 80mm, the thermal insulation board of disk bottom cancellation, bottom size diameter is reduced, make bottom become the circular hole of a diameter of 410mm, add the gap of itself and stove circle；Bell surrounding is mentioned and is changed 4 into, with symmetrical with cross point on bell circumference；Pouring into a mould by lightening casting material or heavy castable, to reduce expansion to pasting after 10mm thick fiber felt in lid from bottom circular aperture when filling resistance to material inside whole bell.

After using technique scheme, 763 meters of coke oven lids of the improvement of the present invention, stove circle manufacture method have the advantage that

1, bell, stove circle are easy to make, make stove circle be difficult to loosen, and bell is easy to open, cover and close action；

When taking off more than bell, clear graphite the operations such as coal in 2, producing, eliminate stove circle and be hit vibration and loosening of causing, and smolder produced by seal failure and alter fire；

3, the adverse effect that environment is caused is eliminated.

Accompanying drawing explanation

Fig. 1 is the released state schematic diagram of known bell and stove circle；

Fig. 2 is the bonding state schematic diagram of known bell and stove circle；

Fig. 3 is the stove coil structures before the improvement of the embodiment of the present invention, dimensional drawing；

Fig. 4 is the top view of Fig. 3；

Fig. 5 is the furnace cover structure schematic diagram before the improvement of the embodiment of the present invention；

Fig. 6 is the top view of Fig. 5；

Fig. 7 is the stove coil structures schematic diagram after the improvement of the embodiment of the present invention；

Fig. 8 is the top view of Fig. 7；

Fig. 9 is the furnace cover structure schematic diagram after the improvement of the embodiment of the present invention；

Figure 10 is the top view of Fig. 9.

In figure: 1 bell top, 2 mention, 3 stove circles, 4 bell bottoms, refractory material in 5 bells, 6 castables, 7 magnetic carbon steel deck-plates, 8 alignment pins, and 9 take off cap bore, 10 cast housings, 11 hexagon socket head cap screws, 12 disk thermal insulation boards, 13 anchoring pieces.

Detailed description of the invention

Below in conjunction with embodiment and accompanying drawing thereof, the present invention is illustrated further.

Embodiment 1

763 meters of coke oven lids of the improvement of the present invention, stove circle manufacture method comprise the following steps:

A, Lu Quan foundation ring circle sets up rectangular steel plates

Referring now to Fig. 3-6, Fig. 3 is the stove coil structures before the improvement of the embodiment of the present invention, dimensional drawing, and Fig. 4 is the top view of Fig. 3, and Fig. 5 is the furnace cover structure schematic diagram before the improvement of the embodiment of the present invention, and Fig. 6 is the top view of Fig. 5.Stove circle before improvement be diameter (internal diameter) be the ironware of 540mm, because foundation ring is the least with castable refractory joint portion, fixing-stable effect is limited, takes off during lid rotates clear coal and graphite and during artificial sled takes off lid, cleaning graphite at coal car, easily causes stove circle stress and loosen.Bell before additionally improving is up big and down small castiron housing, and inside is hollow, fills resistance to material.Bell top is 625mm magnetic carbon steel deck-plate, can open top cover plate when the internal filling fire resisting material of bell.Bell upper furnace has chamfering along place, can coordinate tightly with the chamfering of stove circle, play sealing function.Bottom is the thermal insulation board of 535mm disk, is integrated with cast housing.

Fig. 7 is the stove coil structures schematic diagram after the improvement of the embodiment of the present invention, and Fig. 8 is the top view of Fig. 7.

The corrective measure of stove circle is: set up the steel plate of long a width of 100 × 75mm on the circumference of Lu Quan foundation ring by cross symmetry, increase castable refractory pressure contacting surface to amass, under the effect of the castable of surrounding compacting, make stove circle more firm stable, when bell rotates and artificial sled takes off lid action, it is difficult to loosen.

B, bell are set up anchoring piece, are mentioned, improve the internal filling fire resisting material of bell

Fig. 9 is the furnace cover structure schematic diagram after the improvement of the embodiment of the present invention, and Figure 10 is the top view of Fig. 9.

The corrective measure of bell is:

For coordinating with stove circle, bell upper dimension does not become 625mm, and under upper magnetic carbon steel cover plate, welding and assembling height is the anchoring piece of 80mm, the thermal insulation board of disk bottom cancellation, bottom size diameter is reduced, makes bottom become the circular hole of a diameter of 410mm, add the gap of itself and stove circle.Bell surrounding is mentioned and is changed 4 into, with symmetrical with cross point on bell circumference.Pouring into a mould by lightening casting material or heavy castable to pasting after 10mm thick fiber felt in lid from bottom circular aperture when filling resistance to material inside whole bell, reduce and expand.

The present invention has substantive distinguishing features and significant technological progress, 763 meters of coke oven lids of the improvement of the present invention, stove circle manufacture method according to scene by stove circle bell design experiment, increase the fastness of stove circle, reduce bell bottom size, (mention provided circumferentially about the mentioning of bell and be distributed on bell circumference, in cross layout), coal or graphite more than stove circle mouth is removed during in order to rotate, make stove circle when bell rotates or manually takes off lid, stress is less, and it is unlikely to loosening, prevent inner flue gas of the stove flame from emerging.

Above example is used for illustrative purposes only, rather than limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, it is also possible to make various conversion or change.Therefore, the technical scheme of all equivalents also should belong to scope of the invention, should be limited by each claim.

Claims (1)

1. 7 the 63 meters of coke oven lids improved, stove circle manufacture method, it is characterised in that comprise the following steps:

A, Lu Quan foundation ring circle sets up rectangular steel plates

The ironware that stove circle is internal diameter 540mm before improvement；Bell before improvement is up big and down small castiron housing, and inside is hollow, fills resistance to material；Bell top is 625mm magnetic carbon steel deck-plate, and bottom is the thermal insulation board of disk, is integrated with cast housing；

A size of 535mm；

The corrective measure of stove circle is: set up the steel plate of long a width of 100 × 75mm on the circumference of Lu Quan foundation ring by cross symmetry, increase castable refractory pressure contacting surface to amass, under the effect of the castable of surrounding compacting, make stove circle more firm stable, when bell rotates and artificial sled takes off lid action, it is difficult to loosen；

B, bell are set up anchoring piece, are mentioned, improve the internal filling fire resisting material of bell

The corrective measure of bell is: for coordinating with stove circle, the upper dimension of bell is constant is still 625mm, under upper magnetic carbon steel cover plate, welding and assembling height is the anchoring piece of 80mm, the thermal insulation board of disk bottom cancellation, bottom size diameter is reduced, make bottom become the circular hole of a diameter of 410mm, add the gap of itself and stove circle；Bell surrounding is mentioned and is changed 4 into, with symmetrical with cross point on bell circumference；Pouring into a mould by lightening casting material or heavy castable, to reduce expansion to pasting after 10mm thick fiber felt in lid from bottom circular aperture when filling resistance to material inside whole bell.