CN202182612U

CN202182612U - Lining structure of vertical lime pit

Info

Publication number: CN202182612U
Application number: CN2011200625264U
Authority: CN
Inventors: 赵光森; 张小旭; 王会先; 马军强
Original assignee: LUOYANG KECHUANG REFRACTORIES CO Ltd
Current assignee: LUOYANG KECHUANG NEW MATERIAL CO., LTD.
Priority date: 2011-03-03
Filing date: 2011-03-03
Publication date: 2012-04-04
Anticipated expiration: 2021-03-03

Abstract

A lining structure of a vertical lime pit consists of a fiber board, a light brick and a clay brick from a furnace shell to the interior in sequence. Finally, wear-resisting pouring materials with different performances and high strength are adopted as a working lining of the lime pit. The poured working lining comprises an expansion seam, an anchoring hook and the like. Due to the washing and impact of material, the service life of a traditional vertical lime pit adopting a clay brick and a high-aluminum brick as a working lining is lower, and when burning zone nodules are removed by explosion, the clay brick or the high-aluminum brick is easy to loosen and fall so as to lead to the collapse of the pit lining finally. Due to excellent wear resistance, washing resistance and integrity, the lining structure replaces a traditional masonry structure so as to greatly prolong the service life of the vertical lime pit.

Description

A kind of lining structure of vertical limekiln

Technical field

The utility model relates to the structure of vertical limekiln liner, especially can improve the life-span of vertical limekiln lining material, and working lining is convenient to quick reparation after damaging.

Background technology

At present, traditional vertical limekiln lining structure is from comprising thermal insulation layer and working lining on a large scale, and working lining is generally selected clay brick or high-alumina brick for use by kiln different working section.Yet the wearability of clay brick and high-alumina brick is not ideal enough usually, because the washing away, clash into of lime stone raw material, the working lining at feed opening position is easy to be destroyed.Burning zone is when exploding except that dross, and refractory brick is easy to blown up or break, thereby refractory brick on every side also can become flexible gradually, come off.After working lining was destroyed or comes off, thermal insulation layer just exposed out, yet the thermal insulation layer made from light material can be depleted very soon.Thereby traditional furnace lining structure and working lining class limitations the life-span of limekiln liner.

Summary of the invention

In order to solve vertical limekiln working lining because the bump of material, wash away and destroy and the refractory brick globality is bad, be prone to the deficiency becoming flexible, come off; The utility model has been taked two kinds of measures: at first; Say that from structure the limekiln liner is made up of fiberboard, light-weight brick, clay brick, several parts of working lining; Secondly, utilize high-strength, the integrated poured working lining of wear-resistant castable, integrated poured working lining is implemented by the pours of different performance by the difference of stove section, and comprises anchoring hook, dilatation joint etc.Thereby reasonably inner lining structure and good wearability, scour resistance and the globality of working lining have improved the comprehensive life of limekiln lining material greatly.

The technical scheme that its technical problem of the utility model solution is taked is: at first, lining material is made up of fiberboard, light-weight brick, clay brick, several parts of working lining; Secondly, working lining is carried out integrated poured, that is, be the pours of limekiln different working section preparation different performance: charge door adopts the pours that has high strength, high-wearing feature at low temperatures; Burning zone adopts the pours that at high temperature has high strength, high-wearing feature and resistive connection knurl; Temperature had the pours of high strength, high-wearing feature down during preheating zone and salband then were employed in; Simultaneously; The working lining pours is stayed dilatation joint, fills with ceramic fiber blanket in the dilatation joint, and the dilatation joint cross section is " Z " type; Side wall is arranged the anchoring hook, and the part that the anchoring hook is imbedded the working lining pours needs brushing one deck asphalt caulk or wrapping tapetum fibrosum.Working lining is implemented with the mode of cast, and each stove section selects the pours with different performance for use, has improved the life-span in limekiln greatly, and the working lining of cast is convenient to damage back maintenance fast.

The beneficial effect of the utility model is: on the one hand, adopt the refractory material of different performances such as fiberboard, light-weight brick, clay brick, working lining to form the limekiln inner lining structure, rational structure has guaranteed the long life-span of lining material; On the other hand, it is integrated poured to use the high-strength wear-resistant pouring material with different performance that working lining is carried out, and stays dilatation joint, welding anchoring hook.Thereby the utility model has significantly improved the comprehensive life of vertical limekiln lining material, and is convenient to maintenance, has improved production efficiency greatly, has huge economic benefit and social benefit.

Description of drawings:

With the quadrel ash furnace is that example further specifies the utility model.

Fig. 1 is a vertical limekiln vertical section sketch map;

Fig. 2 anchoring hook welding position sketch map;

Fig. 3 is a K position enlarged drawing among Fig. 1;

Fig. 4 is a B-B profile among Fig. 1;

Fig. 5 is an A-A profile among Fig. 1;

Fig. 6 is a C-C profile among Fig. 1;

Fig. 7 is a V position enlarged drawing among Fig. 1;

Among the figure 1., the furnace shell steel plate; 2., fiberboard; 3., clay matter light-weight brick; 4., clay brick; 5., working lining pours; 6., dilatation joint; 7., thermometer hole; 8., flame-observing hole; 9., burner; 10., manhole place tapetum fibrosum;

fibre castable;

anchoring hook.

The specific embodiment

1, the structure of limekiln body section is following:

1.1, shown in Figure 1,1. inside from the furnace shell steel plate, lining structure by fiberboard 2., clay matter light-weight brick 3., clay brick 4., 5. several parts of working lining pours constitute.

1.2 5. the working lining pours is made up of charge door pours, burning zone pours, preheating zone and several parts of salband pours.

1.3 5. the working lining pours must stay dilatation joint 6. (Fig. 4), welding anchoring hook

(Fig. 1, Fig. 7).

1.4 each section of working lining is following with pours proportioning 5.:

The charge door pours:

Raw material	Specification (mm)	Ratio (%)
			80 alumina	10-25	20
80 alumina	5-10	15
			80 alumina	3-5	12
80 alumina	1-3	11
			97 carborundum	0-1	3
80 alumina	0-1	5
			Kyanite	0-1	2.5
88 alumina	180 orders	19
			Silicon powder	/	4.5
Al-70 cement	/	8
			Organic explosion-proof fiber	/	0.02
The sodium phosphate trimer water reducer	/	0.1
			The citric acid set retarder	/	0.02

The burning zone pours:

Raw material	Specification (mm)	Ratio (%)
			88 alumina	10-20	20
88 alumina	5-10	15.5

88 alumina	3-5	12
			88 alumina	1-3	11
97 carborundum	0-1	2
			88 alumina	0-1	6
Kyanite	0-1	2
			88 alumina	180 orders	11
The palm fibre corundum	320 orders	10
			Silicon powder	/	4.5
Al-70 cement	/	6
			Organic explosion-proof fiber	/	0.02
The sodium phosphate trimer water reducer	/	0.1
			The citric acid set retarder	/	0.02

Preheating zone and salband pours:

Raw material	Specification (mm)	Ratio (%)
			85 alumina	10-25	20
85 alumina	5-10	15.5
			85 alumina	3-5	12
85 alumina	1-3	11
			97 carborundum	0-1	2
85 alumina	0-1	6
			Kyanite	0-1	2
88 alumina	180 orders	21
			Silicon powder	/	4.5
Al-70 cement	/	6
			Organic explosion-proof fiber	/	0.02
The sodium phosphate trimer water reducer	/	0.1
			The citric acid set retarder	/	0.02

2; Fig. 1 is a vertical limekiln profilograph; Kiln shell 1. on the welding position of welding anchoring hook

anchoring hook

begin from the position of kiln high by 1/4th (from top to bottom); Anchoring hook

distributes and to see that Fig. 2, anchoring hook imbed the position of working lining pours in 5. and need brushing asphalt caulk or the thick tapetum fibrosum of wrapping 1mm to expand to absorb.

3, shown in Figure 3 is the structure chart of position, kiln bottom, and the pours of the about 400mm-500mm of thickness that promptly on steel construction at the bottom of the kiln, directly constructs 5..

4; The implementation process of limekiln liner body section is following: at first build fiberboard by laying bricks or stones 2., then build light-weight brick by laying bricks or stones 3., build the permanent liner clay brick again by laying bricks or stones 4.; Beginning formwork construction working lining pours 5. after building certain altitude by laying bricks or stones; Pours 5. construction height is generally 1.5m-2m for best, pours 5. construct finish continued build by laying bricks or stones fiberboard 2., light-weight brick 3., clay brick 4. and then the construction pours, so circulation finishes up to construction.2. fiberboard selects thickness for use is the general fibre plate of 50mm, light-weight brick 3. select for use clay matter light-weight brick (NG-0.8, T3); 4. clay brick selects N-2a for use; T3, pours THICKNESS CONTROL 5. is good at 350mm-450mm, 5. the different working stage selects corresponding pours for use.

5, must must reserve dilatation joint 6. at vertical direction when 5. the working lining pours constructs, dilatation joint width 6. is 8mm-10mm, the distance about 2m of dilatation joint between 6., and in kiln, be symmetrically distributed; 6. 4. the permanent liner clay brick also stay dilatation joint, and dilatation joint cross section 6. is as shown in Figure 4, and dilatation joint 6. the inside is filled with tapetum fibrosum.

6, among Fig. 5 thermometer hole 7., flame-observing hole 8., 9. burner locate to make earlier corresponding prefabricated section, during the kiln lining construction prefabricated section directly is embedded in corresponding position.

7, Fig. 6 is the manhole structure chart, by figure with 5. straight forming of pours, then with clay brick 4., 3. light-weight brick get final product with the tapetum fibrosum envelope is 10. stifled.

8; Fig. 7 is a kiln top bit structure chart; Kiln lining and kiln top steel construction need stay the space of 200mm with fibre castable filling, in order to avoid the kiln lining volume expansion is covered build-up of pressure to kiln.

Claims

1. the lining structure in a vertical limekiln in furnace shell, is made up of insulation lining, permanent liner, working lining, and it is characterized in that: near furnace shell is fiberboard, is light-weight brick then, then is clay brick, and working lining is a pours.

2. according to the lining structure described in the claim 1, it is characterized in that: side wall is arranged the anchoring hook, and the part that the anchoring hook is imbedded the working lining pours needs brushing one deck asphalt caulk or wrapping tapetum fibrosum.

3. according to the lining structure described in the claim 1, it is characterized in that: the working lining pours is stayed dilatation joint, fills with ceramic fiber blanket in the dilatation joint, and the dilatation joint cross section is " Z " type.

4. according to the lining structure described in the claim 1, it is characterized in that: the working lining pours divide charge door with pours, burning zone with pours, preheating zone and salband with three kinds of pours.