CN2679443Y - High temp deslagging valve - Google Patents

High temp deslagging valve Download PDF

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Publication number
CN2679443Y
CN2679443Y CN 03266852 CN03266852U CN2679443Y CN 2679443 Y CN2679443 Y CN 2679443Y CN 03266852 CN03266852 CN 03266852 CN 03266852 U CN03266852 U CN 03266852U CN 2679443 Y CN2679443 Y CN 2679443Y
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CN
China
Prior art keywords
valve
valve body
spool
connecting rod
batching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 03266852
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Chinese (zh)
Inventor
张启峰
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Individual
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Individual
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Filing date
Publication date
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Priority to CN 03266852 priority Critical patent/CN2679443Y/en
Application granted granted Critical
Publication of CN2679443Y publication Critical patent/CN2679443Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a high temp deslagging valve, comprising a valve body, a valve cap, a valve core, heat-resistance connecting rods and a power transmission device. The valve core is provided with an oval conical nose and is connected with the rotatable and lifting transmission device through a cardan and two heat-resistance connecting rods. The main components thereof all utilize non-metallic materials, powder metallurgy and composite materials pressed or poured. The main components are made through the techniques of maintenance, drying, correcting and sintering. Thus, various components, especially the valve core can reach the high temperature resistance and the high-wearing feature. The reliability of controlling deslagging is improved.

Description

The high temperature slag-off valve
Technical field:
The utility model relates to a kind of high temperature slag-off valve, specifically relates to the deslagging control apparatus of circulating fluidized bed boiler.
Background technique:
Production both at home and abroad at present and the fluidized bed boiler that uses, 2～4 slag-off valves of general employing, with control deslagging flow, these slag-off valves are to have the gate valve of flashboard in the can of Thermal-resistance tool steel or the stainless steel of yttrium chromium 18 nickel, 9 titaniums or have the butterfly row valve that rotatable dish units is regulated flow, the serviceability temperature of the high temperature slag-off valve of this class formation and this metal material requires to be lower than 800 ℃, heat-resisting quantity is poor, when temperature greater than more than 600 ℃ the time, the performance of metal begins to lose efficacy, its mechanics and chemical property variation, the effect out of hand to cause slag charge generation bonding and jam, thus, the life-span of metal slag-off valve is shorter.In addition, the mode of its control slag-off valve is to adopt high-pressure air outwards to blow, and regulates the pressure and the flow of high-pressure air and regulates bed drain purge, and therefore, very weak for the dischargeable capacity of solid slag, reliability is also very poor.
Summary of the invention:
The purpose of this utility model is: a kind of high temperature slag-off valve is provided, and no matter it still all be different from the sulfuration height of bed temperature slag-off valve of usual usefulness on the structure on the material, and placing the interior spool of Seal cage is the circular cone structure of rotatable lifting.This valve critical piece all uses the composite material of the nonmetallic material that the utility model provides, and adopts means of a powder metallurgy technique to make.Make this valve have high-temperature stability, its serviceability temperature can reach 800 ℃ to 1900 ℃, its hardness height, and wear-resisting property is good, and can reduce or avoid the bonding and the jam of slag charge.
The technical solution of the utility model is:
A kind of high temperature slag-off valve, be provided with valve body, valve gap is equipped with at top at valve body, spool is housed in the valve body, core bar top at spool links to each other with transmission device by connecting rod, be provided with the pipeline of perforation in the bottom of valve body, link to each other with the pipeline of slagging tap with the slag input pipeline with flange plate, described valve body has internal layer and skin; Described valve gap also has the valve gap internal layer; Described spool has the head and the core bar of truncated cone, and the lower end of core bar links to each other with the big end of spool, and the upper end of its core bar links to each other with a thermal resistance connecting rod by a universal joint, and the latter links to each other with another connecting rod by another universal joint again; The upper end of thermal resistance connecting rod connects with the actuating unit of rotatable lifting.
The material prescription of high temperature slag-off valve:
First preferred version:
The skeleton of described valve body and valve gap is made with Steel Fibre,
Its outer batching
AL 2O 3?68～72％+SiO 2?24～26％+CaO?2～3％+Fe 2O 3?1～2％
Its mesosphere batching:
AL 2O 3?63～67％+SiO 2?6～8％+SiC?19～21％+FeO 2?0.4～0.6％
Its internal layer batching:
Superfine+C powder;
Second preferred version:
The skeleton of described spool is to make with Steel Fibre
Its mesosphere batching:
AL 2O 358～62%+SiO 214～16%+MgO, 2～2.2%+AL 2O 3/ MgO 0.2～04%+ alumina hollow ball 4～6%
Its skin (fire-resistant abrasion-proof layer) batching:
The ultra-fine C powder of SiC 43～47%+ 33～37%+ superfine iron powder 14～16%+AL 2O 4～6%;
The 3rd preferred version:
The skeleton batching of described thermal resistance connecting rod:
Aluminum silicate fiber+mineral wool fiber
Its outer batching:
AL 2O 333～37%+Fe 2O 324～26%+ fine aluminium calcium cement+alumina hollow ball 4～6%;
The 4th preferred version:
The skeleton of described valve body (1) and valve gap (4) is made with Steel Fibre
Its outer batching is:
AL 2O 3?68～72％+SiO 2?24～26％+CaO?2～3％+Fe 2O 3?1～2％
Its mesosphere batching:
AL 2O 3?63～67％+SiO 2?6～8％+SiC?19～21％+FeO 2?0.4～0.6％
Its internal layer batching:
Superfine+C powder;
The skeleton of described spool (6) is made with Steel Fibre
Its mesosphere batching is:
AL 2O 358～62%+SiO 214～16%+MgO, 2～2.2%+AL 2O 3/ MgO 0.2～0.4%+ alumina hollow ball 4～6%
Its skin (fire-resistant abrasion-proof layer) batching is:
The ultra-fine C powder of SiC 43～47%+ 33～37%+ superfine iron powder 14～16%+AL 2O 4～6%;
The 5th preferred version:
The skeleton of described valve body (1) and valve gap (4) is made with Steel Fibre
Its outer batching:
AL 2O 3?68～72％+SiO 2?24～26％+CaO?2～3％+Fe 2O 3?1～2％
Its mesosphere batching:
AL 2O 3?63～67％+SiO 2?6～8％+SiC?19～21％+FeO 2?0.4～0.6％
Its internal layer batching:
Superfine+C powder;
The skeleton batching of described thermal resistance connecting rod (8 and 10) is:
Aluminum silicate fiber+mineral wool fiber
Its outer batching:
AL 2O 333～37%+Fe 2O 324～26%+ fine aluminium calcium cement+alumina hollow ball 4～6%;
The 6th preferred version:
The skeleton batching of described thermal resistance connecting rod (8 and 10) is:
Aluminum silicate fiber+mineral wool fiber
Its outer batching:
AL 2O 333～37%+Fe 2O 324～26%+ fine aluminium calcium cement+alumina hollow ball 4～6%;
The skeleton batching of described thermal resistance connecting rod (8 and 10) is:
Aluminum silicate fiber+mineral wool fiber
Its outer batching:
AL 2O 333～37%+Fe 2O 324～26%+ fine aluminium calcium cement+alumina hollow ball 4～6%;
The 7th preferred version:
The skeleton of described valve body (1) and valve gap (4) is made with Steel Fibre
Its outer batching:
AL 2O 3?68～72％+SiO 2?24～26％+CaO?2～3％+Fe 2O 3?1～2％
Its mesosphere batching:
AL 2O 3?63～67％+SiO 2?6～8％+SiC?19～21％+FeO 2?0.4～0.6％
Its internal layer batching:
Superfine+C powder;
The skeleton of described spool (6) is made with Steel Fibre
Its mesosphere batching is:
AL 2O 358～62%+SiO 214～16%+MgO, 2～2.2%+AL 2O 3/ MgO 0.2～0.4%+ alumina hollow ball 4～6%
Its skin (fire-resistant abrasion-proof layer) batching is:
The ultra-fine C powder of SiC 43～47%+ 33～37%+ superfine iron powder 14～16%+AL 2O 4～6%;
The skeleton batching of described thermal resistance connecting rod (8 and 10) is:
Aluminum silicate fiber+mineral wool fiber
Its outer batching:
(1) AL 2O 333～37%+Fe 2O 324～26%+ fine aluminium calcium cement+alumina hollow ball 4～6%.
Advantage of the present utility model is:
(1) owing to use the spool of the rotatable lifting of oval taper, can prevent valve interior wall and high temperature slag charge bonding and jam.
(2) because spool uses nonmetallic material, powder metallurgy and composite material, reach high temperature resistant and high-wear resistance; Its performance is near ceramal, but low price many.
(3) use composite material to make the thermal resistance driving component, make control gear reach desired conventional temperature, therefore, can not damage electric transmission machanism, increased the reliability of control deslagging.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
Embodiment:
A kind of example structure of high temperature slag-off valve is: be provided with valve body 1, its tool one opening vertically upward and the opening of two substantially horizontal ends, valve body 1 have internal layer 2 and outer 3; At the top of valve body 1 valve gap 4 is housed, is provided with valve gap internal layer 5 at the inwall of valve gap 4; In the cavity that valve body 1 and valve gap 4 are constituted, spool 6 is housed, spool 6 has the head and a core bar of oval taper, the upper end of its core bar links to each other with a thermal resistance connecting rod 8 by a universal joint 7, the latter links to each other with another thermal resistance connecting rod 10 by another universal joint 9 again, and the upper end of thermal resistance connecting rod 10 connects with the actuating unit of rotatable lifting 11.
The production process of this high temperature slag-off valve is as follows:
(1) valve body 1 and valve gap 4:
(1) makes skeleton with Steel Fibre;
(2) outer batching is:
AL 2O 3?70％+SiO 2?25％+CaO?2.5％+Fe 2O 3?1.5％；
(3) batching in mesosphere is:
AL 2O 3?65％+SiO 2?7％+SiC?20％+Fe 2O 3?0.5％；
(4) internal layer batching:
Superfine+carbon dust
(2) spool 6:
(1) makes skeleton with Steel Fibre;
(2) the mesosphere batching is:
AL 2O 360%+SiO 215%+MgO 2.1%+AL 2O 3/ MgO 0.3%+ alumina hollow ball 5%;
(3) outer batching is:
The ultra-fine carbon dust 35%+ of SiC 45%+ superfine iron powder 15%+AL 2O 5%;
(3) thermal resistance connecting rod 8 and 10:
(1) skeleton batching:
Aluminum silicate fiber+mineral wool fiber;
(2) outer batching:
AL 2O 335%+Fe 2O 325%+ fine aluminium calcium cement+alumina hollow ball 5%.
More than each member all through ramming, compacting or moulding by casting, maintenance, drying, correction size with fire, and machining is finished the whole operations of production.
(4) assembling:
Valve body 1 adopts the refractory steel shell, with valve body 1, spool 6 and valve gap 4 assemblings qualified after, insert steel shell, after the fixing welding of alumina cement, the pipe ends of valve body 1 bottom is connected with the pipeline (not shown) of slagging tap with the slag input pipeline with flange.

Claims (3)

1, a kind of high temperature slag-off valve is provided with valve body, at the top of valve body valve gap is housed, spool is housed in the valve body, links to each other with transmission device by connecting rod, be provided with the pipeline of perforation in the bottom of valve body on the core bar top of spool, link to each other with the pipeline of slagging tap with the slag input pipeline with flange plate, it is characterized in that:
Described valve body (1) has internal layer (2) and outer (3); Described valve gap (4) also has valve gap internal layer (5); Described spool (6) has the head and the core bar of truncated cone, the lower end of core bar links to each other with the big end of spool (6), the upper end of its core bar links to each other with a thermal resistance connecting rod (8) by a universal joint (7), and the latter links to each other with another connecting rod (10) by another universal joint (9) again; The upper end of thermal resistance connecting rod (10) connects with the actuating unit (11) of rotatable lifting.
2, according to claims 1 described high temperature slag-off valve, it is characterized in that: the skeleton of described valve body (1), valve gap (4) and spool (6) is made of Steel Fibre.
3, according to claims 1 described high temperature slag-off valve, it is characterized in that: described thermal resistance connecting rod (8) and (10) are made of aluminium silicate fiber peacekeeping mineral wool fiber.
CN 03266852 2003-07-08 2003-07-08 High temp deslagging valve Expired - Fee Related CN2679443Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03266852 CN2679443Y (en) 2003-07-08 2003-07-08 High temp deslagging valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03266852 CN2679443Y (en) 2003-07-08 2003-07-08 High temp deslagging valve

Publications (1)

Publication Number Publication Date
CN2679443Y true CN2679443Y (en) 2005-02-16

Family

ID=34580457

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03266852 Expired - Fee Related CN2679443Y (en) 2003-07-08 2003-07-08 High temp deslagging valve

Country Status (1)

Country Link
CN (1) CN2679443Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1553076B (en) * 2003-06-02 2010-05-12 徐震 High-temperature slap discharging valves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1553076B (en) * 2003-06-02 2010-05-12 徐震 High-temperature slap discharging valves

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C19 Lapse of patent right due to non-payment of the annual fee
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