CN101182221A - Standardized production application of rotary kiln firebrick - Google Patents

Abstract

The invention discloses the standardized production and application of a firebrick used in a rotary kiln, and a technical proposal of the invention simplifies the prior standard of the rotary kiln firebrick of 69 kinds of sizes of three types of equal large-end size of 103mm, equal middle size of 71.5mm and equal middle size of 75mm to only adopt the rotary kiln firebrick of four types and only use two kinds of moulds for making brick. The technology of four-brick and two-mould is applied to the kiln type of the rotary kiln with diameter of 1.5m to 6.0m, and the compendious and convenient calculating formulas and attached lists are available for checking. The technology has wide application prospect, and the comprehensive implement of the technology can produce great economic benefit and social benefit and bring the important influence to the rotary kiln refractory material industry at the following aspects: ensuring that the design department simplifies the design working procedure and saves design cost, realizing the zero stock of the manufacturer which uses the rotary kiln, realizing the low production cost, the low stock and the real standardized production of the refractory material factory.

Description

Rotary kiln is used with the standardized production of refractory brick

Technical field

Patent of the present invention relates to rotary kiln with refractory brick production design and application, relates in particular to standardized designs, production, the application of rotary kiln with refractory brick.

Background technology

In refractory brick mould design, processing, refractory brick production and the application facet of rotary kiln with refractory brick, because various model rotary kilns do not have unified standard with fire brick type, for many years, under the numerous situation of rotary kiln model, each designing unit does not have standard and can follow when the fire brick type that design determines in the different rotary kilns to be adopted, deliver to the typing processing of rotary kiln refractory brick manufacturer after having only design voluntarily, cause fire brick type design multifarious, of a great variety, and the phenomenon that has nothing in common with each other of the fire brick type that often occurs using in the rotary kiln of same model.

At the standard GB/T 17912-1999 (neqISO5417:1986) of National Quality ﹠ Technology Inspection Bureau " rotary kiln refractory brick geomery " after 2000-08-01 implements, thoroughly do not address the above problem yet, wait big end size (103mm 29 kinds) because in standard, only the rotary kiln fire brick type has been divided into, etc. intermediate sizes (71.5mm 22 kinds), etc. three types of intermediate sizes (75mm 18 kinds), rotary kiln fire brick type wherein has 69 kinds, standard only provides rotary kiln refractory brick geomery production standard, allow designing unit select for use, do not stipulate in the rotary kiln selection standard of what diameter listed that several are the rotary kiln fire brick types that must adopt, also listed in the standard calculation formula and 180mm thickness etc. hold size brick ring scaling system greatly, calculate very complicated.If design department designs on the paper, rotary kiln uses producer but must drop into substantial contribution construction storage brick warehouse so, and will store a large amount of refractory brick, prevents from aborning to satisfy the needs that change brick because damaging appears in the rotary kiln lining brick.In addition, owing to use producer not have unified refractory brick model at same diameter rotary kiln, refractory materials manufacturer can't standardized production, the equal non-available supply of domestic production producer at present, purchase refractory brick and must shift to an earlier date order at least 20 days to 1 month, producer processes specially according to the design paper that uses producer to provide, therefore, just occur: all rotary kilns use producer to have to expend specially substantial contribution for this reason and build special-purpose fire-resistant brick storehouse, are used for shifting to an earlier date this universal phenomenon that stock's refractory brick is made provision against emergencies.

In addition each refractory factory produce rotary kiln refractory brick cost height, stock big, can't standardized production.Had in 2000 since " rotary kiln refractory brick geomery " standard, because brick shape just has 69 kinds in the rotary kiln fire brick type dimensional standard, cause refractory factory still can't come standardized production by brick shape, add that the brick type is many, refractory brick factory needs the mould of making in advance also more, for guaranteeing the capacity delivery of each order, satisfying under the condition of yield rate, a part of product assurance performance of a contract of producing are all understood more by refractory materials manufacturer, finally also cause manufacturer to overstock surplus products in a large number, even more serious is, in case this model refractory brick order stops, the surplus products that overstock will become the burden of refractory factory, therefore, the production of rotary kiln refractory brick is that each refractory factory is felt the thing of having no way out for many years deeply, its production cost height, it is the still insurmountable so far problem of each refractory factory that the surplus products of a large amount of multiple models overstock.Fund overstocks, energy dissipation, and productivity has lowly restricted the production development of rotary kiln refractories industry.

Many of patent applications that relate to rotary kiln refractory brick shape and structure are also arranged in Chinese patent literature, occur but relate to unified rotary kiln refractory brick geomery patent application.

Summary of the invention

The present invention seeks to production practice and the research through more than ten years by the contriver, working out the unification of rotary kiln firebrick structure size is four kinds, only uses two kinds of brick-making moulds, and promptly so-called " four bricks, the two moulds " technology that adopts then can thoroughly address the above problem.

The present invention realizes by the following technical solutions: adopts four kinds of rotary kiln refractory brick and only uses the technical scheme of two kinds of brick-making moulds, and hereinafter to be referred as " four bricks, two moulds " technology,

(1), is suitable for the kiln type: φ 1.5m～φ 6.0m rotary kiln;

(2), four kinds of bricks wherein: the D brick: being main brick, is exactly syphon; BJ brick: for reducing is regulated brick; 1/2BJ and 2/3BJ represent respectively their A, B be respectively reducing brick BJ large and small end size 1/2nd or 2/3rds;

(3) specification representation L * H * A/B (mm) is the each several part size Expressing formula of wedge shape fire brick type, represents the size numerical value of the small end of the special-purpose thick wedge shape refractory brick of rotary kiln, big end, thickness, length in the formula respectively with A, B, H, L; Thickness δ＜the 3mm of brickwork joint 3.

In the formula: L=150～400mm, H=150～250mm; A=30～110mm, B=40～150mm, B＞A in same brick type; Satisfy following condition at different brick type area requirements:

D brick: L=150～400mm; H=150～250mm; A/B=0.91～0.97

BJ brick L=150～400mm; H=150～250mm; A/B=0.66～0.8

For the L, the H that determine, four kinds of refractory brick of size of A, B, only need two kinds of moulds in the production: " the D bricks die of L * H * A/B (mm) and BJ bricks die ", wherein 1/2BJ fore shaft brick; The all available BJ bricks die of 2/3BJ fore shaft brick is produced, and can make four each bands " D, BJ, 1/2BJ, 2/3BJ sign " type matrix base plate when wherein making mould, can finish automatically during production to show four kinds of permanent refractory brick signs on refractory brick;

(4), various kiln type refractory brick configuration calculation formula:

The every ring of D brick needs configuration block to count ≈ 41d-63 piece, and calculation result is by " 4 houses 5 are gone into " method round numbers;

The every ring of BJ brick needs configuration block to count ≈ 63-10.5d piece, and calculation result is by " 4 houses 5 are gone into " method round numbers;

D is the cylinder of rotary kiln internal diameter in the formula, presses " m " unit value during calculating.

Following brick type be can satisfy the brick molded dimension of producing optimum producting condition in the suitable rotary kiln type scope:

(1), is suitable for the kiln type: φ 1.5m～φ 6.0m rotary kiln;

(2), four kinds of wedge shape fire brick types, D brick: 200 * 200 * 93/100 (mm); BJ brick: 200 * 200 * 73/100 (mm); 2/3BJ fore shaft brick; 1/2BJ fore shaft brick;

(3), four kinds of refractory brick productions only need two kinds of moulds: " the BJ bricks die of the D bricks die and 200 * 200 * 73/100 (mm) of 200 * 200 * 93/100 (mm) ", wherein 2/3BJ fore shaft brick; The all available BJ bricks die of 1/2BJ fore shaft brick is produced.Four each bands " D, BJ, 1/2BJ, 2/3BJ sign " type matrix base plate can be made when wherein making mould, four kinds of permanent refractory bricks signs of demonstration on refractory brick can be finished during production automatically.

(4), each kiln type refractory brick configuration calculation formula:

The every ring of D brick needs configuration block to count ≈ 41d-63 (piece), and calculation result is by " 4 houses 5 are gone into " method round numbers.

The every ring of BJ brick needs configuration block to count ≈ 63-10.5d (piece), and calculation result is by " 4 houses 5 are gone into " method round numbers.

D is the cylinder of rotary kiln internal diameter in the formula, presses " m " unit value during calculating.

At above-mentioned specification representation L * H * A/B, it is the each several part size Expressing formula of wedge shape fire brick type, from Fig. 1～Fig. 2, also indicate A, B, H, L, be used for representing respectively the numerical value of the small end (A) of the special-purpose thick wedge shape refractory brick of rotary kiln, big end (B), thickness (H), length (L).

Wherein:

The D brick: being main brick, is exactly the meaning of syphon.Get the letter " D " of phonetic " greatly " word beginning;

BJ brick: for reducing is regulated brick.Get the letter " BJ " of phonetic " reducing " word beginning;

1/2BJ and 2/3BJ represent that respectively their A, B are respectively the sizes 1/2nd or 2/3rds of the large and small end of reducing brick BJ, the thickness δ＜3mm of brickwork joint 3.

" four bricks, two moulds " technology is with a wide range of applications, of the present invention implementing in full produces great effect with the following several respects to the rotary kiln refractories industry, and will therefore produce huge economic benefit and social benefit: design department is with the simplified design operation, the save design cost, to realize that rotary kiln uses producer's zero inventory, will realize refractory factory lower production cost, low stock, standardized production truly.

Description of drawings

Fig. 1 rotary kiln wedge shape fire brick type front view;

Fig. 2 rotary kiln wedge shape fire brick type right view;

Fig. 3 rotary kiln wedge shape refractory brick eyelet synoptic diagram-1;

Fig. 4 rotary kiln wedge shape refractory brick eyelet synoptic diagram-2;

Fig. 5 rotary kiln wedge shape refractory brick ring is built and is arranged synoptic diagram;

Fig. 6 rotary kiln wedge shape refractory brick is built synoptic diagram by laying bricks or stones.

A, B, H, L are respectively the small end size (A) of the special-purpose thick wedge shape refractory brick of rotary kiln, hold size (B), thickness (H), length (L) greatly in Fig. 1～Fig. 6; 1.1/2BJ, 2.2/3BJ, 3. brickwork joint.

Embodiment

Embodiment:

Use " rotary kiln type refractory brick configuration reference table " according to the rotary kiln of different diameter thus be easy to calculate the total quantity that refractory brick blocks number that this rotary kiln uses calculates the required all types of refractory brick blocks numbers of lining of a rotary kiln.

The subordinate list explanation: for L=200mm, H=200mm, four kinds of bricks: the size detail of D brick, BJ brick, 1/2BJ fore shaft brick, 2/3BJ fore shaft brick is as follows:

Brick type title	L	H	A	B
					The D brick	200mm		93 mm	100mm
The BJ brick	200mm	200mm	73mm	100mm
					1/2BJ fore shaft brick	200mm	200mm	36.5mm	50mm
2/3BJ fore shaft brick	200mm	200mm	49mm	67mm

See the following form with of the rotary kiln type refractory brick configuration of this brick to different diameter:

Part kiln type refractory brick configuration reference table

The kiln type	Number+the loss of every ring D fragment of brick	Number+the loss of every Miho Dockyard fragment of brick	Number+the loss of every ring BJ fragment of brick	Number+the loss of every meter BJ fragment of brick	Every meter (2/3) BJ fore shaft fragment of brick number	Every meter (1/2) BJ fore shaft fragment of brick number
							φ6.0	183+3	915+15	0	0	10	10
φ5.0	142+3	710+15	11+1	55+5	10	10
							φ4.6m	126+3	630+15	15+1	75+5	10	10
φ4.2m	109+3	545+15	19+1	95+5	10	10
							φ4.0m	101+3	505+15	21+1	105+5	10	10
φ3.5m	81+3	405+15	26+1	130+5	10	10
							φ3.2m	68+3	340+15	29+1	145+5	10	10
φ3.0m	60+3	300+15	32+1	160+5	10	10
							φ2.8m	52+2	260+10	34+1	170+5	10	10
φ2.6m	44+2	220+10	36+1	180+5	10	10
							φ2.5m	40+1	200+5	37+1	185+5	10	10
φ2.0m	19+1	95+5	42+1	210+5	10	10
							φ1.5m	0	0	46+1	230+5	10	10

Annotate: rotary kiln refractory brick adopts ring to build, and uses with the material refractory mortar and builds by laying bricks or stones, and brickwork joint is controlled at less than 3mm.

This a kind of brick all can use the rotary kiln type of different diameter, just solved to turn round each kiln type refractory brick unified use a kind of, or several refractory brick standardization effort.It is the still insurmountable so far problem of each refractory factory that the surplus products that solved original a large amount of multiple models overstock.

By employing " four bricks, two moulds " technology,

1, can unify standard: each rotary kiln Design of Production Line unit is if " four bricks, the two moulds " technology of employing then can all be unified the brick type.

2, realize that rotary kiln uses producer's zero inventory.If " four bricks, the two moulds " technology of employing owing to refractory materials manufacturer realizes standardized production, all has can be purchased off the shelf, therefore, all rotary kilns use producers all can not establish the refractory brick storehouse, also can realize zero inventory.For using producer, rotary kiln saves a large amount of storehouse construction and stock's refractory brick fund: if by each bar rotary kiln production line average computation, estimate can be and use producer on average to save 200,000 yuan of storehouse construction costs, save stock's refractory brick and overstock 200,000 yuan of expenses.If the whole nation is used for all size rotary kiln of productions such as cement, quickened lime, aluminum oxide, refractory materials at present by 2200 calculating, then can economize on the use of funds 8.8 hundred million yuan.

3, realize refractory factory lower production cost, low stock, standardized production.If each refractory materials manufacturer all adopts " four bricks, two moulds " technology, then can realize each refractory materials manufacturer standardized production, thereby reduce die cost and inventory cost greatly, save a large amount of mould, inventory finance, thereby reach the purpose of increasing income and economizing on spending.If adopt technical scheme of the present invention, the refractory brick production cost will comprehensively reduce 50-80 unit/ton; If each bar rotary kiln on average uses 240 tons of calculating of refractory brick by annual, annual China rotary kiln will reach 52.80 ten thousand tons with refractory brick, estimate that will be increase income and economize on spending ten thousand yuan of 2640-4224 of refractory materials manufacturer every year.Also reduced energy consumption simultaneously.

Illustrate:

1, be unrealized before the unified standard, can use present technique to carry out standardized production equally in a factory, adopting " four bricks, two moulds " technological method is basis:

One, rotary kiln disposes a kind of refractory brick geomery design calculation formula:

(1)3.14×d÷(B+δ)＝3.14×(d-2H)÷(A+δ)

Two, rotary kiln " four bricks, two moulds " refractory brick geomery derivation system of equations:

(2)ND×(B+δ)+NBJ×(B ¹+δ)＝3.14×d

(3)ND×(A+δ)+NBJ J×(A ¹+δ)＝3.14(d-2H)

ND needs the configuration block number for the D brick in the above-mentioned formula; NBJ needs the configuration block number for the BJ brick;

B is the big end size of D brick; δ is for building brickwork joint thickness by laying bricks or stones;

B ¹Be the big end size of BJ brick; D is the rotary kiln internal diameter size;

A is a D brick small end size; A ¹Be BJ brick small end size;

H is the refractory brick gauge.

Calculation formula foundation among the present invention: do reference with φ 1.5m rotary kiln and two kinds of kiln types of φ 6.0m rotary kiln internal diameter size earlier, press rotary kiln refractory brick Commonly Used Size respectively and set L=200 (also desirable 1 50～400 arbitrary values); H=200 (also desirable 150～250 arbitrary values); B, B ¹=100 (also can get 40～150 arbitrary values respectively, or can set A, A earlier ¹Be respectively 30～110 arbitrary value and calculate B, B ¹); Get δ=2.5 substitution formula (1) and make the single configuration refractory brick of two kiln types size calculation Design respectively, can calculate the A of φ 1.5m rotary kiln respectively with refractory brick ¹=73; The φ 6.0m rotary kiln A=93 of refractory brick.Again with above-mentioned each data substitution system of equations (2) and (3) thus calculate

The every ring of D brick needs configuration block to count ≈ 41d-63 (piece),

The every ring of BJ brick needs configuration block to count ≈ 63-10.5d (piece),

2, be in this formula of each several part size Expressing of wedge shape fire brick type at specification expression L * H * A/B,

In the formula: L=150～400mm, H=150～250mm; A=30～110, B=40～150, B＞A in same brick type, satisfy following condition at different brick type area requirements:

Brick type title	L	H	A/B
				The D brick	150～400mm	150mm	0.95～0.97
	150～400mm	180mm	0.94～0.96
					150～400mm	190mm	0.93～0.95
	150～400mm	200mm	0.93～0.95
					150～400mm	220mm	0.92～0.935
	150～400mm	250mm	0.91～0.925
				The BJ brick	150～400mm	150mm	0.79～0.8
	150～400mm	180mm	0.75～0.77
					150～400mm	190mm	0.735～0.75
	150～400mm	200mm	0.73～0.75
					150～400mm	220mm	0.69～0.715
	150～400mm	250mm	0.66

Represent with following simple method:

D brick: L=150～400; H=150～250; A/B=0.91～0.97

BJ brick L=150～400; H=150～250; A/B=0.66～0.8.

Claims (2)

1. rotary kiln is used with the standardized production of refractory brick, have etc. big end size, etc. the small end size, etc. the rotary kiln fire brick type of intermediate sizes type, the technical scheme that it is characterized in that only adopting four kinds of rotary kiln refractory brick and only use two kinds of brick-making moulds, hereinafter to be referred as " four bricks, two moulds " technology

(1), is suitable for the kiln type: φ 1.5m～φ 6.0m rotary kiln;

(2), four kinds of bricks wherein: the D brick: being main brick, is exactly syphon; BJ brick: for reducing is regulated brick; 1/2BJ and 2/3BJ represent respectively their A, B be respectively reducing brick BJ large and small end size 1/2nd or 2/3rds;

(3) the specification expression L of brick * * H * A/B _[gy1]Be the each several part size Expressing formula of wedge shape fire brick type, represent the size numerical value of the small end of the special-purpose thick wedge shape refractory brick of rotary kiln, big end, thickness, length in the formula with A, B, H, L respectively;

In the formula: L=150～400mm, H=150～250mm; A=30～110mm, B=40～150mm, B＞A in same brick type, satisfy following condition at different brick type area requirements:

D brick: L=150～400mm; H=150～250mm; A/B=0.91～0.97

BJ brick: L=150～400mm; H=150～250mm; A/B=0.66～0.8.

For the L, the H that determine, four kinds of refractory brick of size of A, B, only need two kinds of moulds in the production: " L * H * A/B _[gy2]D bricks die and BJ bricks die "; wherein all available BJ bricks die of 1/2BJ fore shaft brick, 2/3BJ fore shaft brick is produced; can make four each bands " D, BJ, 1/2BJ, 2/3BJ sign " type matrix base plates when wherein making mould, can finish automatically during production to show four kinds of permanent refractory bricks signs on refractory brick;

(4), various kiln type refractory brick configuration calculation formula:

The every ring of D brick needs configuration block to count ≈ 41d-63 piece, and calculation result is by " 4 houses 5 are gone into " method round numbers;

The every ring of BJ brick needs configuration block to count ≈ 63-10.5d piece, and calculation result is by " 4 houses 5 are gone into " method round numbers;

D is the cylinder of rotary kiln internal diameter in the formula, presses " m " unit value during calculating.

2. rotary kiln according to claim 1 is used with the standardized production of refractory brick, and it is characterized in that adopting four types rotary kiln refractory brick and only use " four bricks, two moulds " technology of two kinds of brick-making moulds,

(1), is suitable for the kiln type: φ 1.5m～φ 6.0m rotary kiln;

(2), four kinds of wedge shape fire brick types, D brick: 200 * 200 * 93/100; BJ brick: 200 * 200 * 73/100; 1/2BJ fore shaft brick; 2/3BJ fore shaft brick;

(3), four kinds of refractory brick productions only need two kinds of moulds: " 200 * 200 * 93/100 D bricks die and 200 * 200 * 73/100 BJ bricks die ", 1/2BJ fore shaft brick wherein, the all available BJ bricks die of 2/3BJ fore shaft brick is produced, four each bands " D, BJ, 1/2BJ, 2/3BJ sign " type matrix base plate can be made when wherein making mould, four kinds of permanent refractory bricks signs of demonstration on refractory brick can be finished during production automatically;

(4), various kiln type refractory brick configuration calculation formula:

The every ring of D brick needs configuration block to count ≈ 41d-63 piece, and calculation result is by " 4 houses 5 are gone into " method round numbers;

The every ring of BJ brick needs configuration block to count ≈ 63-10.5d piece, and calculation result is by " 4 houses 5 are gone into " method round numbers;

D is the cylinder of rotary kiln internal diameter in the formula, presses " m " unit value during calculating.

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