CN203332933U - Anti-abrasion coal falling tube suitable for power plant coal delivering system - Google Patents
Anti-abrasion coal falling tube suitable for power plant coal delivering system Download PDFInfo
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- CN203332933U CN203332933U CN2013204032727U CN201320403272U CN203332933U CN 203332933 U CN203332933 U CN 203332933U CN 2013204032727 U CN2013204032727 U CN 2013204032727U CN 201320403272 U CN201320403272 U CN 201320403272U CN 203332933 U CN203332933 U CN 203332933U
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- coal
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- falling tube
- liner plate
- wedge
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Abstract
The utility model discloses an anti-abrasion coal falling tube suitable for a power plant coal delivering system. The anti-abrasion coal falling tube suitable for the power plant coal delivering system comprises a coal falling tube body (1). A plurality of modular assembly abrasion-resistant blocks (2) are arranged on the erosion surface of the coal falling tube body (1). According to the structure of each modular assembly abrasion-resistant block (2), a high molecular polyethylene lining plate (4) is arranged at one end, facing the erosion surface of the coal falling tube body (1), of a bottom plate (5), an abrasion-resistant high-chromium-cast-iron lining plate (3) is arranged on the high molecular polyethylene lining plate (4), a reverse-wedge column (7) is arranged at the other end of the bottom plate (5), the reverse-wedge column (7) penetrates through the coal falling tube body (1), the reverse-wedge column (7) is fixed to the outer wall of the coal falling tube (1) in the method that a bolt column (8) is arranged on the reverse-wedge column (7) in a penetrating mode, and a countersunk screw hole (6) is formed in the bottom plate (5). The anti-abrasion coal falling tube suitable for the power plant coal delivering system is resistant to abrasion and impact, simple in construction technology, small in replacement workload, and short in maintenance time.
Description
Technical field
The utility model relates to a kind of coal spout, particularly relates to a kind of abrasionproof coal spout that is applicable to Coal Transportation System.
Background technology
Relative CFBB, the demand of faulty coal is larger, and the time of coal handling system transportation faulty coal is longer, and the equipment attrition aggravation is high to the dropping coal tube abrasive resistant material requirement of each transfer point belt feeder, should wear-resistant, also want shock resistance.Good resistance to abrasion can reduce the wearing and tearing of equipment, improves running environment, reduces the maintenance workload of service personnel, guarantees coal handling system safety, stable, operation continuously.
Coal spout is to carry the general designation of coal pipeline in industries such as coal, harbour, thermoelectricity, coal dump station, washery, coal-burned industrial boilers.Coal spout generally comprises coal breakage bucket, downtake, the parts such as flame diversion trough.Longer coal spout also needs to increase flapper, reduces airborne dust.Also to increase the parts such as shunting plate-turning door during shunting.
The coal handling system abrasion-proof backing block of current domestic power industry, corrosion-resistant steel coal spout, wear-resistant ceramic, high molecular abrasion-proof plate etc., connect modes such as adopting high strength bolt connection, bonding, electric welding.But in real-world operation, really accomplish wear-resisting, damping, shock resistance, anticorrosion, insulate, seal few, price is partially expensive, the replacing time is long, complicated construction technique.Cause the coal handling system maintenance workload large, difficult in maintenance.Particularly CFBB need to be carried a large amount of faulty coals, and under this bad working environments, the fault rates such as belt feeder, coal spout can improve greatly, causes equipment can not meet the requirement of continuous operating condition.
The large Capacity Circulating Fluidized Bed Boilers of current domestic burning inferior coal because of for a long time, carry spoil that hardness is larger again and again to break down continuously to cause needs to interrupt the embarrassment that operation is overhauled, rushed to repair continuously.
The abrasion-proof backing block that at present domestic popular special material is made is expensive, and service life is short, causes maintenance cost higher.
Built thermoelectricity coal handling system is carried out to the retrofit work amount larger, length consuming time.
Existing common A3 steel plate, corrosion-resistant steel coal spout are all not wear-resisting, and the method for thickening material and raising steel grade, the Mn steel plate thick with 12MM substitutes, wear and tear still excessive, less than local leakage occurs half a year, according to the statistics of 2011, the damaged leakage of coal spout reached 40 times, becomes a large difficult point of belt conveyor system maintenance.The work capacity of assault repairing is very heavy.
Add and put this method of abrasion-resistant lining plate and mainly increase material that resistance to abrasion is higher to improve service life, no matter but how good abrasion-resistant lining plate still can wear and tear, and period of service is no more than 1 year, and expense is higher.And, when scheduled overhaul, because of the long-term corrosion of sulfur content in coal, water, bolt of rear end plate can't be dismantled, and need service personnel to creep in very filthy coal spout, stand on scaffold and cut the way dismounting with vapour, labour intensity is large, working environment is very severe.Be in operation as do not changed for a long time, because bolt rubs, abrasion-resistant lining plate falls, tend to cause the extensive longitudinal tear of next belt feeder adhesive tape, expansion accident scope.
Part transfer point drop is higher, and each liner plate impact strength after may wear to a certain degree is poor, easily cracked.
The utility model content
Technical problem to be solved in the utility model be to provide a kind of wear-resisting, shock resistance, construction technology simple, change the abrasionproof coal spout that is applicable to Coal Transportation System that work capacity is little, the repair time is short.
In order to solve the problems of the technologies described above, the abrasionproof coal spout that is applicable to Coal Transportation System that the utility model provides, comprise the coal breakage body, the wash surface that is subject at described coal breakage body is provided with a plurality of modularization assembling wear-resistant blocks, the structure of each described modularization assembling wear-resistant block is: the end that is subject to wash surface in the face of described coal breakage body of base plate is provided with the high-molecular polythene liner plate, described high-molecular polythene liner plate is provided with the antiwear high-chromium cast iron liner plate, the other end of described base plate is provided with the post of falling the wedge, the described post of falling the wedge is through with hitching post on the described post of falling the wedge and fixes through described coal breakage body and at the outer wall of described coal breakage body, be provided with the countersunk-heat bolt hole on described base plate.
The specification of described antiwear high-chromium cast iron liner plate and described high-molecular polythene liner plate is 650 ㎜ * 450 ㎜.
The material of described base plate is A3, thickness δ=18mm.
Adopt the abrasionproof coal spout that is applicable to Coal Transportation System of technique scheme, adopt antiwear high-chromium cast iron liner plate, high-molecular polythene liner plate and base plate combination to carry out abrasionproof, can carry out rapidly, easily integral replacing and modularization assembling, after facilitating service personnel to be assembled between overhauling according to the size of different coal spouts, adopt the post of falling the wedge to be fixed on the coal spout outer wall.Replacement procedure is simple, light.Adopt that antiwear high-chromium cast iron liner plate and high-molecular polythene lining board double layer are wear-resisting a higher wear ability, the high-molecular polythene liner plate can play buffer action again simultaneously.Each maintenance convenient disassembly, the unworn liner plate of base plate and part all can combine again, re-uses.Wear-resisting, shock resistance, complicated construction technique, the replacing work capacity is large, the repair time is long shortcoming have been solved cleverly.Whether the maintenance workmen only needs periodic inspection to fall wedge loosening and regularly be fixed, and combine replacing after regularly the base plate integral demounting being got off according to the wear pattern of abrasion-proof backing block and get final product.
The utility model adopts double-layer wear-resistant, has certain buffering, has simplified system simultaneously, has reduced construction volume, has shortened production time, has saved cost.Compared with prior art, advantage of the present invention is: prior art resistance to abrasion and shock resistance can not take into account, and the not shock resistance after wearing and tearing of general cast iron lining plate is easily cracked, adopt the liner plate of bonding easily to drop, liner plate after welding need to be used again fire weldering cutting in changing next time in narrow coal spout, the present invention can carry out modularization assembling according to different coal spouts, the forelock that falls can be convenient to rapid dismounting, no matter be newly install or existing coal spout is changed into all and can be changed in the shortest time, and base plate can reuse, cost-saving, alleviate the intensity of upkeep operation.
In sum, the utility model be a kind of wear-resisting, shock resistance, construction technology simple, change the abrasionproof coal spout that is applicable to Coal Transportation System that work capacity is little, the repair time is short.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is along A-A line cut-away view in Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1 and Fig. 2, the wash surface that is subject at coal breakage body 1 is provided with a plurality of modularization assembling wear-resistant blocks 2, the structure of each modularization assembling wear-resistant block 2 is: the material of base plate 5 is A3, thickness δ=18mm, an end that is subject to wash surface in the face of coal breakage body 1 of base plate 5 is provided with the high-molecular polythene liner plate 4 that specification is 650 ㎜ * 450 ㎜, high-molecular polythene liner plate 4 is provided with the antiwear high-chromium cast iron liner plate 3 that specification is 650 ㎜ * 450 ㎜, the other end of base plate 5 is provided with the post of falling the wedge 7, the post of falling the wedge 7 is through on the post of falling the wedge 7 and fixes with hitching post 8 through coal breakage body 1 and at the outer wall of coal breakage body 1, be provided with countersunk-heat bolt hole 6 on base plate 5.
Referring to Fig. 1 and Fig. 2, adopt antiwear high-chromium cast iron liner plate 3, high-molecular polythene liner plate 4, base plate 5 combinations to carry out abrasionproof, can carry out rapidly, easily integral replacing and modularization assembling, after facilitating service personnel to be assembled between overhauling according to the size of different coal spouts, adopt the post of falling the wedge 7 to be fixed on the coal spout outer wall.Replacement procedure is simple, light.Adopt antiwear high-chromium cast iron liner plate 3 and high-molecular polythene liner plate 4 double-layer wear-resistants that higher wear ability is arranged, the high-molecular polythene liner plate can play buffer action again simultaneously.Each maintenance convenient disassembly, the unworn liner plate of base plate and part all can combine again, re-uses.Wear-resisting, shock resistance, complicated construction technique, the replacing work capacity is large, the repair time is long shortcoming have been solved cleverly.Whether the maintenance workmen only needs periodic inspection to fall wedge loosening and regularly be fixed, and combine replacing after regularly the base plate integral demounting being got off according to the wear pattern of abrasion-proof backing block and get final product.
Referring to Fig. 1 and Fig. 2, concrete operation of the present utility model is:
Adopt 5 combinations of antiwear high-chromium cast iron liner plate 3+ high-molecular polythene liner plate 4+ base plate, after facilitating service personnel to be assembled between overhauling according to the size of different coal spouts, adopt the post of falling the wedge 7 to be fixed on the outer wall of coal spout 1, specifically be implemented as follows:
1, the antiwear high-chromium cast iron liner plate 3 and the high-molecular polythene liner plate 4 that are subject to wash surface employing 650 * 450 at coal spout 1 combined, double-deck abrasionproof, and high-molecular polythene liner plate 4 can also play certain buffer action.
2, antiwear high-chromium cast iron liner plate 3 and high-molecular polythene liner plate 4 are separately fixed at base plate 5(A3 δ=18mm), between base plate 5 and coal spout 1, adopt the post of falling the wedge 7 fixing.
3, whether the maintenance workmen only needs the periodic inspection post of falling the wedge 7 and hitching post 8 loosening and regularly be fixed, and combine replacing after regularly the base plate integral demounting being got off according to the wear pattern of antiwear high-chromium cast iron liner plate 3 and high-molecular polythene liner plate 4 and get final product.
Claims (3)
1. an abrasionproof coal spout that is applicable to Coal Transportation System, comprise coal breakage body (1), it is characterized in that: the wash surface that is subject at described coal breakage body (1) is provided with a plurality of modularization assembling wear-resistant blocks (2), the structure of each described modularization assembling wear-resistant block (2) is: the end that is subject to wash surface in the face of described coal breakage body (1) of base plate (5) is provided with high-molecular polythene liner plate (4), described high-molecular polythene liner plate (4) is provided with antiwear high-chromium cast iron liner plate (3), the other end of described base plate (5) is provided with the post of falling the wedge (7), the described post of falling the wedge (7) is through described coal breakage body (1) and be through the described post of falling the wedge (7) at hitching post outer wall for (8) of described coal breakage body (1) and go up and fix, be provided with countersunk-heat bolt hole (6) on described base plate (5).
2. the abrasionproof coal spout that is applicable to Coal Transportation System according to claim 1, it is characterized in that: the specification of described antiwear high-chromium cast iron liner plate (3) and described high-molecular polythene liner plate (4) is 650 ㎜ * 450 ㎜.
3. the abrasionproof coal spout that is applicable to Coal Transportation System according to claim 1 and 2, it is characterized in that: the material of described base plate (5) is A3, thickness δ=18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204032727U CN203332933U (en) | 2013-07-08 | 2013-07-08 | Anti-abrasion coal falling tube suitable for power plant coal delivering system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204032727U CN203332933U (en) | 2013-07-08 | 2013-07-08 | Anti-abrasion coal falling tube suitable for power plant coal delivering system |
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|---|---|
| CN203332933U true CN203332933U (en) | 2013-12-11 |
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| CN2013204032727U Expired - Fee Related CN203332933U (en) | 2013-07-08 | 2013-07-08 | Anti-abrasion coal falling tube suitable for power plant coal delivering system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488810A (en) * | 2018-12-20 | 2019-03-19 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of fixation device based on Coal Transportation System coal spout |
-
2013
- 2013-07-08 CN CN2013204032727U patent/CN203332933U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488810A (en) * | 2018-12-20 | 2019-03-19 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of fixation device based on Coal Transportation System coal spout |
| CN109488810B (en) * | 2018-12-20 | 2023-12-26 | 中国电力工程顾问集团西北电力设计院有限公司 | Fixing device based on coal conveying system coal breakage pipe of power plant |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20170708 |