CN2921613Y - Blade pulverulent fuel feeding machine - Google Patents
Blade pulverulent fuel feeding machine Download PDFInfo
- Publication number
- CN2921613Y CN2921613Y CN 200620090912 CN200620090912U CN2921613Y CN 2921613 Y CN2921613 Y CN 2921613Y CN 200620090912 CN200620090912 CN 200620090912 CN 200620090912 U CN200620090912 U CN 200620090912U CN 2921613 Y CN2921613 Y CN 2921613Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- pulverulent
- push rod
- flashboards
- feeding machine
- 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
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Abstract
A blade pulverulent fuel feeding machine comprises an upper body and a lower body which are connected with each other, wherein, two flashboards are arranged in the upper body; a blade is arranged in the lower body; both sides of the upper body are provided with a lead screw; a screw nut is arranged on the lead screw; a movable push rod is arranged on the upper body; the outer end of the push rod is fixedly connected with the screw nut; the inner end of the push rod is hinged with the flashboards; the middle parts of two flashboards are in hinge joint. When the flashboards are opend, an A-shaped shunt ridge is gradually formed, and the flow of pulverulent coal can be changed by changing the vertex angle size of the shunt ridge. When pulverulent coal forms arch, arch breaking can be realized by using the fast to and fro motion of the flashboards. The large cogging blade solves the nonlinear problem of the characteristic curve of the pulverulent fuel feeding machine in high speed, and improves the control characteristic of the pulverulent fuel feeding machine in high speed. The lower body is adopted with three-level sealing, which can ensure no leakage of pulverulent coal in the spindle direction. Therefore, compared with the prior art, the utility model puts an end to the phenomenon of pulverulent fuel leakage, simplifies the equipment structure, and improves the working performance of the pulverulent fuel feeding machine.
Description
Technical field
The utility model relates to the equipment that a kind of coal-fired station uses, and is a kind of Impeller powder feeder specifically.
Background technology
Impeller powder feeder is coal-fired station's bin system is supplied with a capital equipment from coal dust to boiler.The original DX type of China, GF type Impeller powder feeder adopt the outside plug type flashboard, and this structure can produce serious leakage powder phenomenon when flashboard opens and closes, and working environment is polluted.In order to change this phenomenon, NGF type machine supplying powder changes into the flashboard of outside plug type at top body inward opening formula flashboard, and the shunting ridge of the A font of a casting is installed on flashboard.Because the shunting ridge in this structure is fixed, so it can not change the flow velocity of coal dust as required.In addition, the measurement impeller of installing in the lower body of above-mentioned three kinds of Impeller powder feeders is the little teeth groove impeller with 12 teeth, and band powder phenomenon appears in this impeller when the machine supplying powder high speed operation, cause the nonlinear characteristic of machine supplying powder when running up.
Summary of the invention
The purpose of this utility model provides a kind of novel Impeller powder feeder, and it can overcome existing shortcoming in the prior art, not only can stop the leak phenomenon of powder, can also improve the operating characteristic of machine supplying powder when running up, and increase the flashboard function, and make device structure simple, advanced in performance.
The purpose of this utility model is achieved in that it comprises top body and the lower body that is connected, in the body of top flashboard is installed, impeller is installed in the lower body, it is characterized in that body both sides, top are equipped with leading screw, screw being housed on the leading screw, on the body of top movable push bar being installed, fixedlys connected with screw in the outer end of push rod, the inner and the flashboard of push rod are hinged, and the centre of two shoe brake plates is that hinge connects.
The interior measurement impeller of lower body that is installed in machine supplying powder changes big teeth groove impeller into, and it has 6 or 7 teeth.In addition, lower body of the present utility model has adopted three grades of hermetically-sealed constructions.
Flashboard of the present utility model forms the shunting ridge of " A " font gradually in opening process, change the drift angle size of shunting ridge, promptly can change the flow of coal dust.When coal dust knot arch, utilize the quick back and forth movement of flashboard, promptly can realize brokenly the purpose of arch.Big teeth groove impeller has fundamentally solved the nonlinear problem of characteristic curve when high speed of machine supplying powder, has improved the control characteristic of machine supplying powder under high speed.Lower body has adopted three grades of sealings, can guarantee that coal dust does not leak at major axes orientation.Therefore the utility model has compared with prior art stopped to leak the phenomenon of powder, makes the structure of equipment obtain simplifying, and the service behaviour of machine supplying powder is improved.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present utility model.
Fig. 2 and Fig. 3 are the structural representations of the top body shown in Fig. 1.
Fig. 4 is the structural representation of the lower body shown in Fig. 1.
Fig. 5 and shown in Figure 6 be the sectional schematic diagram of big teeth groove impeller.
The specific embodiment
The utility model is described in more detail below in conjunction with specific embodiment and accompanying drawing thereof.
As seen from Figure 1, machine supplying powder comprises top body assembling A and the lower body assembling B that is connected with top body assembling A.
Narrate the concrete structure of top body assembling A below with reference to Fig. 2 and Fig. 3.As seen from Figure 2, the 1st, the top body is equipped with leading screw 14 in the both sides of top body, and the leading screw in the present embodiment is an overall structure, runs through the top body, and is rotationally connected between the body of top, and baffle ring 16 is housed.Screw 12 is installed on leading screw.Two push rods 13 are also installed in the both sides of top body, be provided with airtight and watertight padding 22 between push rod 13 and the top body and gland 15 is housed.Be provided with flashboard 17 in the body of top, flashboard 17 is two articulated structures, and is middle with hinge 18 connections, is provided with axis pin base 20 in the both sides of flashboard.Fixedly connected with screw 12 in the outer end of push rod 13, the inner is hinged by bearing pin 21 with the axis pin base 20 on the flashboard 17.19 are provided in a side of the peep hole on the body of top and are located at lid on the peep hole among the figure.
As shown in Figure 2, flashboard 17 can be installed in the upside of push rod.Also can be installed in the downside of push rod as shown in Figure 3.
Shown in Figure 4 is the structural representation of lower body assembling B.As seen from the figure, main shaft 27 tops of lower body 7 are installed with scraper plate 2 by screw 34, are provided with upper spacer 3 below scraper plate, install in the lower body 7 and supply with impeller 4 and lower clapboards 5, big teeth groove impeller 6 are installed below the lower clapboard.As seen from Figure 5, measuring impeller 6 is the big teeth groove impellers with 6 teeth.Circle seat 31 is housed outside main shaft, is equipped with airtight and watertight padding between circle seat and the main shaft and between circle seat and the big teeth groove impeller, and seal cover 32 is housed.Be provided with oil sealing between the end face of measuring impeller and lower body, 23 is lubricating cups among the figure.The end of main shaft is equipped with bearing and mainshaft gland 25.The 29th, sealing gasket.The lower end of main shaft also is provided with airtight and watertight padding 28, and gland 26 is installed.
24 and 30 are mounted in the outer cover of main shaft among the figure.
Claims (6)
1, Impeller powder feeder, it comprises top body and the lower body that is connected, in the body of top flashboard is installed, impeller is installed in the lower body, it is characterized in that body both sides, top are equipped with leading screw, screw is housed on the leading screw, on the body of top movable push bar is installed, fixedly connected with screw in the outer end of push rod, the inner and the flashboard of push rod are hinged, and the centre of two shoe brake plates is that hinge connects.
2,, it is characterized in that below the lower clapboard in lower body the big teeth groove impeller with 6 teeth or 7 teeth being installed according to the said Impeller powder feeder of claim 1.
3, according to the said Impeller powder feeder of claim 1, it is characterized in that the main shaft in lower body is equipped with the circle seat, be provided with airtight and watertight padding between circle seat and the main shaft and between circle seat and the big teeth groove impeller, be provided with oil sealing between the end face of big teeth groove impeller and the lower body, the lower end of main shaft is provided with airtight and watertight padding.
4, according to the said Impeller powder feeder of claim 1, the leading screw that it is characterized in that being installed in body both sides, top is as a whole, through the top body.
5,, it is characterized in that flashboard is hinged on the upside of push rod according to the said Impeller powder feeder of claim 1.
6,, it is characterized in that flashboard is hinged on the downside of push rod according to the said Impeller powder feeder of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090912 CN2921613Y (en) | 2006-05-23 | 2006-05-23 | Blade pulverulent fuel feeding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090912 CN2921613Y (en) | 2006-05-23 | 2006-05-23 | Blade pulverulent fuel feeding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921613Y true CN2921613Y (en) | 2007-07-11 |
Family
ID=38254093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620090912 Expired - Fee Related CN2921613Y (en) | 2006-05-23 | 2006-05-23 | Blade pulverulent fuel feeding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921613Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860013A (en) * | 2014-12-31 | 2015-08-26 | 广西传建工业技术有限公司 | Vertical powder feeding machine |
| CN109268871A (en) * | 2018-11-06 | 2019-01-25 | 沈阳卓都电力科技有限公司 | A kind of coal-fired boiler in power plant is quantitative to give powder device |
-
2006
- 2006-05-23 CN CN 200620090912 patent/CN2921613Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860013A (en) * | 2014-12-31 | 2015-08-26 | 广西传建工业技术有限公司 | Vertical powder feeding machine |
| CN109268871A (en) * | 2018-11-06 | 2019-01-25 | 沈阳卓都电力科技有限公司 | A kind of coal-fired boiler in power plant is quantitative to give powder device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |