CN2890669Y - Horizontal middle part coal sludge feeding device - Google Patents
Horizontal middle part coal sludge feeding device Download PDFInfo
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- CN2890669Y CN2890669Y CN 200620003717 CN200620003717U CN2890669Y CN 2890669 Y CN2890669 Y CN 2890669Y CN 200620003717 CN200620003717 CN 200620003717 CN 200620003717 U CN200620003717 U CN 200620003717U CN 2890669 Y CN2890669 Y CN 2890669Y
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Abstract
The utility model relates to a horizontal middle part coal sludge feeding device, which adopts horizontal wind-charging and feeding structure and is positioned around the middle part of the vertical wall of the boiler. Wherein, a high-temperature abrasion-resistant nozzle, a cooling and sealing casing and a supporting drive are connected in order through flange. The cooling and sealing casing and the vertical wall of the boiler are connected vertically. A delivery axle is positioned in the cooling and sealing casing horizontally, one end of which is connected with and rotated by the supporting drive structure. A changeover valve positioned between the air inlet of the cooling and sealing casing and the vertical wall of the boiler and the cooling and sealing casing are installed vertically, which loosen dense coal slurry column under the centrifugal force of high-speed rotation delivery axle. The utility model has the advantages of non coking of coal slurry in the furnace, promotion of operation effectiveness of the boiler, low requirements on coal slurry particle size and atomization characters, low air consumption, combination of functions of material feeding, air feeding and pipeline changeover and combustion requirements of the coal slurry in the boiler.
Description
Technical field
The utility model relates to a kind of coal mud feeding device that is installed on power plant boiler burner hearth middle part, especially is applicable to the middle part feeder device of coal slime pipe-line transportation system.
Background technology
At present, known coal slime mainly contains two kinds by the mode that pipeline delivers into boiler: the vertical feed of furnace roof, furnace side horizontal-jet feed.The version of the vertical charging gear of furnace roof has two kinds of spiral and piston types.
Sped structure as shown in Figure 1, it mainly is by vertical broach hopper 7, drive unit 8, Reducing screw axle 9, coal slime burner hearth inlet 10 is formed, and wherein vertical broach hopper 7 is perpendicular to furnace roof, and drive unit 8 places the top of vertical broach hopper 7 and is connected with Reducing screw axle 9 in placing vertical broach hopper 7, Reducing screw axle 9 also can rotate perpendicular to furnace roof, and coal slime burner hearth inlet 10 is located at the below of vertical broach hopper 7.This sped structure is column by Reducing screw axle 9 with the coal slime of vertical broach hopper 7 to be clamp-oned in the material inlet of boiler top, free-falling burning then.
Piston cylinder operator as shown in Figure 2, it mainly is by housing 11, drive unit 12, piston 13, coal slime burner hearth inlet 14 is formed, and its middle shell 11 is perpendicular to furnace roof, and drive unit 12 places the top of housing 11 and is connected with piston 13 in placing housing 11, piston 13 can move both vertically up and down perpendicular to furnace roof, and coal slime burner hearth inlet 14 places the below of housing 11.Piston cylinder operator realizes that by a piston that moves up and down 13 coal slime is the column free-falling and switches to the function of other pipelines.Fig. 2 a is the feed station, and Fig. 2 b is for stopping expecting station.
The deficiency of the vertical charging gear of above-mentioned furnace roof is that it all is to fall with closely knit form in the exit when coal slime flows with certain pressure in pipeline, can make its nonflammable operational efficiency that fully causes in burner hearth coking to influence boiler in burner hearth, and existing boiler all is fire coal to be delivered in the burner hearth by feeder in lower furnace portion, the requirement of furnace roof feed is not considered in its furnace roof space, so at existing boiler furnace roof equipment the restriction that vertical charging gear can be subjected to its physical dimension is installed.The vertical charging gear of furnace roof can't be realized feed, switches, and the air-supply function gathers together.Sped structure has only the feed function, and piston cylinder operator has only feed and handoff functionality, and their functions of all not blowing only are applicable to the furnace roof feed of balanced draft boiler.
Furnace side horizontal-jet charging gear as shown in Figure 3, its version mainly is to be installed on the coal slime spray gun of furnace side perpendicular to vertical burner hearth, adopt inside and outside double cavity structure, inner chamber is the coal slime stream 16 that low speed flows, exocoel is the high-voltage high-speed airflow 15 (air or steam) with certain pressure, makes the coal slime atomizing enter the burner hearth burning in the exit with the pneumatic impact effect of high velocity air.The deficiency of furnace side horizontal-jet charging gear is that coal slime granularity and atomization characteristics are had relatively high expectations, and to wash away cause wearing and tearing high-pressure air source, gas consumption rate very fast, that needs are extra at a high speed higher and very easily stop up in the exit because of coal slime in the spray gun exit.The horizontal charging gear in furnace side is just realized the function of feed and air-supply is gathered together.
This shows that above-mentioned existing coal mud feeding device still has many defectives, and demands urgently further being improved.In order to solve the defective of existing coal mud feeding device, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but does not see always that for a long time suitable design finished by development, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing coal mud feeding device exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of new horizontal and central sludge feeding, can improve the defective of general existing coal mud feeding device, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.
Summary of the invention
The purpose of this utility model is, overcoming the defective that existing coal mud feeding device exists, is that coal slime is nonflammable abundant in burner hearth and a kind of new horizontal middle part coal slime feeder device, technical problem to be solved are provided, cause coking in burner hearth, influence the operational efficiency of boiler.Its employing level adds conch and revolves feeding structure, it is loose that it will be carried out from the closely knit coal slime post that the pipeline pump comes, and allows coal slime sufficient combustion in burner hearth be difficult for coking, thereby improved the operational efficiency of boiler, make it to be suitable for more prominent usefulness, and have the value on the industry.
Another purpose of the present utility model is, a kind of horizontal and central sludge feeding is provided, technical problem to be solved is to install that vertical charging gear can be subjected to the restriction of its physical dimension and the installation difficulty that causes at existing boiler furnace roof equipment, it utilizes the interface and the source of the gas of existing boiler furnace side not to need boiler is carried out bigger transformation, it is installed at existing boiler furnace roof equipment can not be subjected to the restriction of its physical dimension, thereby be suitable for practicality more.
A purpose more of the present utility model is, a kind of horizontal and central sludge feeding is provided, technical problem to be solved is that existing level injection charging gear is had relatively high expectations higher with the gas consumption rate to coal slime granularity and atomization characteristics, it utilizes the interface and the source of the gas of existing boiler, adopt the employing level to add conch and revolve feeding structure, make it low also low, thereby be suitable for practicality more with the gas consumption rate to coal slime granularity and atomization characteristics requirement.
An also purpose of the present utility model is, a kind of horizontal and central sludge feeding is provided, technical problem to be solved is that to make its function that realizes collecting feed, air-supply and switching pipeline at an easy rate be one, satisfying the requirement of boiler coal combustion, thereby is suitable for practicality more.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to the horizontal middle part coal slime feeder device that the utility model proposes, the employing level adds the wind feeding structure, is installed on around the vertical wall of boiler furnace 3 middle parts.It partly is made up of high-temperature wearable shower nozzle 1, coolant seal housing 2, the vertical wall 3 of boiler furnace, conveying axis 5, supporting driving mechanism 6 and transfer valve 4 etc.Order flange according to high-temperature wearable shower nozzle 1, coolant seal housing 2, supporting driving mechanism 6 connects successively, and three's axis parallel is horizontal positioned in ground.Coolant seal housing 2 and vertical 3 mutual vertical connections of wall of boiler furnace.Conveying axis 5 levels are installed on coolant seal housing 2 inside, and its 5 one end connects and by its driven rotary with supporting driving mechanism 6.Transfer valve 4 and the 2 vertical installations of coolant seal housing between coolant seal housing air inlet and boiler furnace vertical wall 3.
Aforesaid horizontal and central sludge feeding, the structure of wherein said conveying axis 5 are sped structure, helical-ribbon type structure, paddle formula structure or hinging type structure.
Aforesaid horizontal and central sludge feeding, wherein said supporting driving mechanism 6 is electric driving mechanism, hydraulic drive mechanism or air pressure driving mechanism.
Aforesaid horizontal and central sludge feeding, wherein said transfer valve 4 are three-way valve or two two-way valve combining structures.
Aforesaid horizontal and central sludge feeding, wherein said high-temperature wearable shower nozzle 1 adopts the boss flange structure, and material is the firm or wear-resistant ceramic of carbon steel, carbide alloy.
The utility model compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned utility model purpose, major technique of the present utility model thes contents are as follows:
The utility model proposes a kind of horizontal and central sludge feeding, partly be made up of high-temperature wearable shower nozzle 1, coolant seal housing 2, the vertical wall 3 of boiler furnace, conveying axis 5, supporting driving mechanism 6 and transfer valve 4 etc., structure as shown in Figure 4.They connect according to the order flange of high-temperature wearable shower nozzle 1, coolant seal housing 2, supporting driving mechanism 6 successively.Coolant seal housing 2 connects with the vertical wall 3 of boiler furnace wall, conveying axis 5 is installed on coolant seal housing 2 inside, the one end connects and by its driven rotary with supporting driving mechanism 6, transfer valve 4 and the 2 vertical installations of coolant seal housing, transfer valve 4 are arranged between coolant seal housing air inlet (Fig. 4 sequence number 5 indication positions) and the vertical wall of boiler furnace.
By technique scheme, the utility model has following advantage at least:
1, the horizontal and central sludge feeding that the utility model proposes, the employing level adds the wind feeding structure, is rotating under the centrifugal action of conveying axis at a high speed, makes it carry out loose from the closely knit coal slime post that the pipeline pump comes, in burner hearth, be difficult for coking, thereby improved the operational efficiency of boiler.
2, the horizontal and central sludge feeding that the utility model proposes, it utilizes the interface and the source of the gas of existing boiler not to need boiler is carried out bigger transformation, it is installed at existing boiler furnace roof equipment can not be subjected to the restriction of its physical dimension, thereby be suitable for practicality more.
3, the horizontal and central sludge feeding that the utility model proposes, because its utilizes the interface of existing boiler and source of the gas and is not to adopt the mode of atomizing coal slime to burn, so do not need coal slime granularity and atomization characteristics are had relatively high expectations, the gas consumption rate is also low.
4, the horizontal and central sludge feeding that the utility model proposes, use charging gear for making things convenient for Installation in Plant, the function of feed, air-supply and switching pipeline is incorporated into together, make full use of the interface and the source of the gas of existing boiler, greatly improved the efficiency of combustion of coal slime in boiler, it is simple and reliable for structure, and is not easy to wear, is easy to working service.
5, the horizontal and central sludge feeding that the utility model proposes easily is provided with the high velocity projector of high-quality high-abrasive material, the actual life of having improved dispenser in the position of wearing and tearing at the dispenser discharging opening.Its structure adopts the boss flange structure, makes it to be convenient to change.
In sum, the horizontal and central sludge feeding of the utility model special construction, it has above-mentioned many advantages and practical value, and in reaching, do not see like product have similar structural design and method to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have large improvement technically, and produced handy and practical effect, and the multinomial effect with enhancement of existing coal mud feeding device, thereby be suitable for practicality more, and have the extensive value of industry, really be a novelty, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and conjunction with figs. describe in detail as after.
Concrete structure of the present utility model and former reason following examples thereof and accompanying drawing provide in detail.
Description of drawings
Fig. 1: the structural representation of the existing vertical charging gear of spiral furnace roof;
Fig. 2 a: the feed station of the existing vertical charging gear of piston type furnace roof;
Fig. 2 b: the existing vertical charging gear of piston type furnace roof stop expecting station;
Fig. 3: the structural representation of the horizontal charging gear in existing furnace side;
Fig. 4: structural representation of the present utility model;
Fig. 5: the cutaway view of first embodiment of the utility model;
Fig. 6: the cutaway view of second embodiment of the utility model;
Fig. 7: the structural representation of the 3rd embodiment of the utility model;
Fig. 8: the structural representation of the 4th embodiment of the utility model;
Fig. 9: feed station cutaway view of the present utility model;
Figure 10: of the present utility modelly stop expecting the station cutaway view;
Wherein:
1: high-temperature wearable shower nozzle 2: the coolant seal housing
3: the vertical wall 4 of boiler furnace: transfer valve
5: conveying axis 6: the supporting driving mechanism
7: vertical broach hopper 8: drive unit
9: Reducing screw axle 10: coal slime burner hearth inlet
11. housing 12: drive unit
13: piston 14: coal slime burner hearth inlet
15: high-voltage high-speed airflow 16: coal slime stream
17: the coal slime spray gun
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to its specific structural features of horizontal and central sludge feeding and the effect thereof that the utility model proposes, describe in detail as after.
Embodiment 1:
See also Fig. 4, shown in Figure 5, the horizontal and central sludge feeding of the utility model preferred embodiment, it mainly comprises high-temperature wearable shower nozzle 1, coolant seal housing 2, the vertical wall 3 of boiler furnace, conveying axis 5, supporting driving mechanism 6 and transfer valve 4 etc.Connect according to the order flange of high-temperature wearable shower nozzle 1-coolant seal housing 2-supporting driving mechanism 6 successively from the vertical wall 3 of boiler furnace, three's axis parallel is horizontal positioned in ground.Coolant seal housing 6 connects with coolant seal housing 2 flanges of being made by the high-temperature wearable steel with the vertical wall 3 vertical high-temperature wearable shower nozzles 1 that are connected in the vertical wall 3 of boiler furnace of boiler furnace.Coolant seal housing 2 is provided with two connection holes and links with transfer valve 4 and airduct of boiler respectively, and it adopts water-cooling pattern high temperature resistant with the assurance device energy.Conveying axis 4 levels are positioned at coolant seal housing 2 and drive the function that rotation at a high speed realizes feed and air-supply by the supporting driving mechanism, and its structure is a sped structure.Supporting driving mechanism 6 connects with coolant seal housing 2 flanges to be responsible for supporting and to drive conveying axis 5, and supporting driving mechanism 6 adopts motor reducer to drive.Transfer valve 4 adopts three-way valve, and connects the flow direction of being responsible for switching coal slime with coolant seal housing 2, coal slime transfer pipeline and other pipeline.The structure of high-temperature wearable shower nozzle 1 adopts the boss flange structure.High-temperature wearable shower nozzle 1 is made by carbon steel.Conveying axis 5 is sped structure or helical-ribbon type structure.
As shown in Figure 6, conveying axis 5 is the hinging type structure, and high-temperature wearable shower nozzle 1 is just made by carbide alloy, and other structures are with embodiment 1.
As shown in Figure 7, supporting driving mechanism 6 adopts fluid motor-driven.High-temperature wearable shower nozzle 1 is made by wear-resistant ceramic, and other structures are with embodiment 1.
Embodiment 4
As shown in Figure 8, transfer valve 4 adopts two two-way valve combining structures.Other structures are with embodiment 1.
Conveying axis 5 adopts paddle formula structure, and support driving mechanism 6 adopts the air pressure driving mechanism.Other structures are with embodiment 1.
The operation principle of the foregoing description is that coal slime enters coolant seal housing 2 when transfer valve 4 is arranged in the feed position, conveying axis 5 by rotation at a high speed promotes to advance, coal slime closely knit under conveying axis 5 centrifugal actions of at a high speed rotation is by loose, and mixes to be delivered to the boiler furnace through high-temperature wearable shower nozzle 1 with the low pressure low speed flow of coming in from blast pipe of 2 li of coolant seal housings and burn.Owing to be not to adopt the mode of atomizing coal slime to burn, so do not need coal slime granularity and atomization characteristics are had relatively high expectations.The coal slime pipeline enters other pipeline when transfer valve 4 is arranged in other positions, closes the feed inlet simultaneously.Cooling medium flowing is taken away the heat that is produced by the burner hearth coal combustion in the housing around housing.
When transfer valve 4 is in the feed station, as shown in Figure 9, entering the conveying axis 4 that is rotated by high speed in the coolant seal housing 2 by the next coal slime of pipeline pumping promotes to advance, coal slime closely knit under conveying axis 4 centrifugal actions of at a high speed rotation is by loose, and mixes to be delivered to the boiler furnace through the high-temperature wearable shower nozzle with the low pressure low speed flow of coming in from blast pipe of 2 li of coolant seal housings and burn.
When transfer valve 4 was in the switching station, as shown in figure 10, the coal slime of being come by the pipeline pumping entered other pipeline, simultaneously itself and charging gear was isolated.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the method that can utilize above-mentioned announcement and technology contents are made the change of a little or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (6)
1, a kind of horizontal and central sludge feeding, it is characterized in that: the employing level adds the wind feeding structure, be installed on around the vertical wall of boiler furnace (3) middle part, it is by high-temperature wearable shower nozzle (1), coolant seal housing (2), the vertical wall of boiler furnace (3), conveying axis (5), supporting driving mechanism (6) and transfer valve (4) part are formed, successively according to high-temperature wearable shower nozzle (1), coolant seal housing (2), the order flange of supporting driving mechanism (6) connects, three's axis parallel is horizontal positioned in ground, coolant seal housing (2) and mutual vertical connection of the vertical wall of boiler furnace (3), conveying axis (5) level is installed on coolant seal housing (2) inside, its (5) one end connects and by its driven rotary with supporting driving mechanism (6), is positioned at transfer valve (4) and the vertical installation of coolant seal housing (2) between coolant seal housing air inlet and the boiler furnace vertical wall (3).
2, horizontal and central sludge feeding according to claim 1, the structure that it is characterized in that wherein said conveying axis (5) are sped structure, helical-ribbon type structure, paddle formula structure or hinging type structure.
3, horizontal and central sludge feeding according to claim 1 is characterized in that wherein said supporting driving mechanism (6) is electric driving mechanism, hydraulic drive mechanism or air pressure driving mechanism.
4,, it is characterized in that described transfer valve (4) is three-way valve or two two-way valve combining structures according to any described horizontal and central sludge feeding among the claim 1-3.
5, according to any described horizontal and central sludge feeding among the claim 1-3, it is characterized in that described high-temperature wearable shower nozzle (1) adopts the boss flange structure, material is the firm or wear-resistant ceramic of carbon steel, carbide alloy.
6, horizontal and central sludge feeding according to claim 4 is characterized in that described high-temperature wearable shower nozzle (1) adopts the boss flange structure, and material is the firm or wear-resistant ceramic of carbon steel, carbide alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620003717 CN2890669Y (en) | 2006-02-22 | 2006-02-22 | Horizontal middle part coal sludge feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620003717 CN2890669Y (en) | 2006-02-22 | 2006-02-22 | Horizontal middle part coal sludge feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2890669Y true CN2890669Y (en) | 2007-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620003717 Expired - Lifetime CN2890669Y (en) | 2006-02-22 | 2006-02-22 | Horizontal middle part coal sludge feeding device |
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| Country | Link |
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| CN (1) | CN2890669Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249090A (en) * | 2011-04-29 | 2011-11-23 | 智胜化工股份有限公司 | High-temperature fine ash energy-saving environment-friendly conveying device for three waste (waste gas, waste water and waste residues) fluidization mixed combustion furnace |
-
2006
- 2006-02-22 CN CN 200620003717 patent/CN2890669Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249090A (en) * | 2011-04-29 | 2011-11-23 | 智胜化工股份有限公司 | High-temperature fine ash energy-saving environment-friendly conveying device for three waste (waste gas, waste water and waste residues) fluidization mixed combustion furnace |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING INSTITUTE OF MINE ELECTRICAL ENGINEERING T Free format text: FORMER NAME OR ADDRESS: BEIJING ZHONGKUANG ELECTROMECHANICAL ENGINEERING TECHNOLOGY INST. Owner name: BEIJING ZHONGKUANG ENVIRONMENTAL PROTECTION TECHNO Free format text: FORMER NAME OR ADDRESS: BEIJING INSTITUTE OF MINE ELECTRICAL ENGINEERING TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Beijing Haidian District City Square Road No. 10, No. 1 hospital Zhongguancun Hanhai International Building 7 room 706, zip code: 100080 Patentee after: BEIJING ZHONGKUANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: Beijing City, Haidian District Institute of Rutosids No. 11 Communication Center Room 101, zip code: 100083 Patentee before: Beijing Zhongkuang Electromechanical Engineering Technology Research Institute Co.,Ltd. Address after: Beijing City, Haidian District Institute of Rutosids No. 11 Communication Center Room 101, zip code: 100083 Patentee after: Beijing Zhongkuang Electromechanical Engineering Technology Research Institute Co.,Ltd. Address before: Beijing City, Haidian District Institute of Rutosids No. 11 Communication Center Room 101, zip code: 100083 Patentee before: Beijing Zhong Kuang Institute of Electromechanical Engineering Technology |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20090507 Pledge (preservation): Pledge |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20100521 Granted publication date: 20070418 Pledgee: Bank of Communications Ltd. Beijing branch of Chinese Academy of Sciences Pledgor: BEIJING ZHONGKUANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: 2009110000544 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20070418 Effective date of abandoning: 20060222 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20070418 Effective date of abandoning: 20060222 |