Description

Pin furnace anchors are commonly used metal anchoring elements in refractory lining systems of industrial furnaces and kilns. They are typically welded to the steel plate of the furnace shell and used to support and secure refractory castables, wear-resistant refractory materials, or hexagonal mesh structures. Through point or surface anchoring methods, they ensure that the refractory material maintains a stable position during high-temperature operation, preventing detachment and cracking.

During the operation of industrial furnaces, refractory linings are subjected to multiple effects, including high temperatures, thermal shock, and mechanical vibration. Anchoring nails effectively enhance the integrity of the furnace lining by firmly fixing the refractory material to the furnace structure, preventing detachment caused by thermal expansion or gravity.

The length, diameter, material, and arrangement density of pin Furnace anchor should be rationally designed based on the thickness of the refractory material, the service temperature, and the furnace structure. For areas with high wear or high vibration, they are typically used in conjunction with hexagonal wire mesh to further enhance the stability and durability of the refractory layer.

The function of pin Furnace anchor is to fix the connected linings in a certain position to resist static loads, thermal stress, mechanical rotation, or vibration. pin Furnace anchor help prevent the collapse of the material before ceramic bonding during construction and heating, and also help ensure uniform material shrinkage, avoiding the formation of large and concentrated cracks in the lining.

Metal anchor material and maximum operating temperature

Material	Operating temperature/℃	Material	Operating temperature/℃
Low carbon steel	450	320 type stainless steel	900
Silicon steel	650	309 type stainless steel	1050
Ferrochrome(Cr15%)	850	310 type stainless steel	1100
Ferrochrome(Cr≥15%)	950	Chromium-nickel-iron alloy	1200

They are categorized into Y-type, V-type, T-type, M-type, Z-type, and S-type. Metal pin Furnace anchor are used to support and secure thinner linings made of refractory castables, refractory plastics, and refractory spray coatings. The shape of the metal anchor bolt used depends on the structure of the lining.

product-1200-800

The arrangement and spacing of pin Furnace anchor depend on the shape of the furnace shell or components, the material (density) and thickness of the lining, the operating temperature and conditions (continuous and intermittent operation), and the magnitude of the thermal and mechanical stresses borne by the lining. The arrangement of pin Furnace anchor must be considered to provide sufficient support strength without causing long cracks in the refractory material during thermal expansion and contraction.

Metal pin Furnace anchor are commonly used to support and secure thin or insulated monolithic linings, such as chimney linings, wear-resistant linings of petrochemical catalytic cracking reactors (often using tortoise-shell mesh anchors), linings of integral spray guns in jet metallurgy, monolithic linings of impregnated pipes in DH and RH vacuum degassing units, and linings at the discharge and feed inlets of rotary kilns. They are also used to secure linings with long-term operating temperatures below 1200℃, or linings with intermittent, short-term operating temperatures above 1200℃.

product-1299-573

Y-type anchor parameter table

Type	Parameter
Type	A	B	E	L1	L2	D	R	C	Single weight(kg)
MY-1MYQ1	100	60	20	127	69	12	12	30	0.17
MY-2/MYQ2	125	75		155	81				0.21
MY-3/MYO3	150	90		182	93				0.24
MY-4/MYQ4	175	100	25	210	116				0.29
MY-5/MYQ5	200	120		236	122				0.32
MY-6/MYO6	225	125		266	147				0.37
MY-7/MYO7	250	150		291					0.39
MY-8/MYO8	275	175		316					0.41
MY-9/MYQ9	300	200	30	342	152	16	16	35	0.78
MY-10/MYQ10	325	225		367					0.82
MY-11/MYQ11	350	250		392					0.86
MY-12/MYQ12	375	255		421	176				0.94
MY-13/MYQ13	400	280		446					0.98
MY-14/MYQ14	425	305		471					1.02
MY-15/MYQ15	450	330		496					1.06
MY-16/MYQ16	475	355		521					1.10
MY-17/MYQ17	500	360		551	200				1.19
MY-18/MYQ18	525	375		578	213				1.25
MY-19/MYO19	550	390		605	225				1.31
MY-20/MYQ20	575	395		634	249				1.39
MY-21/MYQ21	600	420		659					1.43
MY-22/MYO22	625	445		684					1.47
MY-23/MYO23	650	470		709					1.51
MY-24/MYO24	675	475		739	274				1.60
MY-25/MYQ25	700	480		768	298				1.69
MY-26/MYO26	725	505		793					1.72
MY-27/MYO27	750	530		818					1.76
MY-28/MYQ28	775	555		843					1.80
MY-29/MYQ29	800	580		869					1.84
MY-30/MYO30	825	605		893					1.88
MY-31/MYQ31	850	630		918					1.92

product-378-642

Technical Requirements

1.0Cr18Ni19 For welding between materials, F347 (GB/T983-1995) welding rods are used.

2.0Cr25Ni20 For welding between materials, F347 (GB/T983-1995) welding rods are used.

3.Q345AFor welding between materials, the welding rod used is F5015 (GB/T5117-1995).

4.The material for MY type anchors is 0Cr18Ni19; the material for MYA type anchors is 0Cr25Ni20; and the material for MYQ type anchors is Q345A.

\V-type anchor parameter table

Type	Parameter
Type	F	L3	d	r	Single weight(kg)
MV-1/MVQ-1	20	52	8	10	0.02
MV-2/MVQ-2	30	76			0.03
MV-3/MVQ-3	40	100			0.04
MV-4/MVQ-4	50	125			0.05
MV-5/MVQ-5	60	150			0.06
MV-6/MVQ-6	70	174	12	14	0.15
MV-7/MVQ-7	80	199			0.18
MV-8/MVQ-8	90	223			0.20
MV-9/MVQ-9	100	247			0.22

product-357-389

Y-type flat steel open anchor parameter table

Specification	A value	B value	R value	ФD	Weight (grams)
YSW--35	35	15	5	8	14.6
YSW--40	40	20	5	8	16.9
YSW--45	45	25	5	8	19.2
YSW--50	50	30	10	10	33.5
YSW--55	55	35	10	10	37.2
YSW--60	60	40	10	10	40.8
YSW--65	65	42	10	10	44.4
YSW--70	70	45	10	10	47.6
YSW--80	80	50	10	10	54.3
YSW--90	90	55	10	10	61.0
YSW--100	100	60	10	12	97.4
YSW--110	110	65	10	12	107
YSW--120	120	70	10	12	117
YSW--130	130	75	10	12	126
YSW--140	140	80	10	12	136
YSW--150	150	85	10	12	146
YSW--160	160	85	10	12	155
YSW--170	170	90	10	14	224
YSW--180	180	90	10	14	236
YSW--190	190	95	10	14	249
YSW--200	200	95	10	14	261
YSW--210	210	95	10	14	273
YSW--220-350	220-350	95	10	14	261+(A-200)*123

product-438-303

Technical Requirements

1.0Cr18Ni19 For inter-material welding, F347 welding rods are used.(GB/T983-1995)

2.0Cr25Ni20 For inter-material welding, F310 welding rods are used.(GB/T983-1995)

3.Q345A For inter-material welding, F5015 welding rods are used.(GB/T5117-1995)

4.The material for MV/Y type open anchors is 0Cr18Ni19.;

The material for the MVA/Y type open anchor is 0Cr25Ni20;

The material for MVQ/Y type open anchors is Q345A.

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