CN200986206Y - Long tail wedge-type coal fines concentrating device - Google Patents
Long tail wedge-type coal fines concentrating device Download PDFInfo
- Publication number
- CN200986206Y CN200986206Y CN 200620135150 CN200620135150U CN200986206Y CN 200986206 Y CN200986206 Y CN 200986206Y CN 200620135150 CN200620135150 CN 200620135150 CN 200620135150 U CN200620135150 U CN 200620135150U CN 200986206 Y CN200986206 Y CN 200986206Y
- Authority
- CN
- China
- Prior art keywords
- long
- tail wedge
- cuboid housing
- outlet
- explant
- 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
Links
Images
Abstract
The utility model discloses a long tail wedge type coal powder concentrating device, which consists of a cuboid shell, a clapboard, a hump impacting and separating block and a long tail wedge type damp flow guider. An inlet is arranged on left side of the cuboid shell, and an outlet is arranged on right side. The hump impacting and separating block is fixed on lateral wall of one side of the inlet on the cuboid shell, and the clapboard is arranged vertically on middle part of the outlet of the cuboid shell. The outlet is divided into a dense coal powder flow exit and a thin coal powder flow exit. The long tail wedge type damp flow guider is positioned between the hump impacting and separating block and the clapboard, and the long tail wedge type damp flow guider is arranged in middle of the cuboid shell. The utility model with simple structure, small airflow resistance and long service life can reduce speed windage between the dense and thin air flows on exit of the concentrating device so as to distribute flux effectively and properly.
Description
Technical field:
The utility model relates to a kind of and pulverized-coal fired boiler, the supporting application of Industrial Stoves, to wind breeze airflow gas, the solid long-tail wedge-type Pulverized Coal Concentration device that separates and concentrate.
Background technology:
In the last few years, the Pulverized Coal Concentration combustion technology had progressively obtained using comparatively widely on China's pulverized-coal fired boiler, Industrial Stoves.At the initial stage, the Pulverized Coal Concentration device generally adopts elbow type or vane type device.Wherein elbow type separation enrichment facility is to utilize breeze airflow through elbow the time, utilize the difference of gas, the centrifugal force of consolidating two-phase and inertia and separate concentrated, it is poor to exist the separation concentrated effect, dividing plate or blade set in the airduct behind the elbow are big to gas-flow resistance, and dividing plate is also more easy to wear.At above-mentioned drawback, louver pulverized coal concentrator has appearred, as the ZL93209806.1 patent, in the inspissator housing, concentrate mechanism to the venetian blind type gas of forming by the concentrated screen of 3-11 piece the outlet split-flow baffles, solid separation from air flow inlet.Though this device has characteristics such as structure is simple relatively, resistance reduces relatively, but owing to concentrate grid is simple flat plate, distance between each screen is less, the plate number is more, air-flow forms the extremely low larger area recirculating zone of flow velocity, the formation of this recirculating zone easily behind screen when flowing through screen at different levels, can produce intermittent coal dust depositional phenomenon, and then cause inspissator to block up powder, spout scaling loss, a wind taking off faults such as fire; So, the resistance for the more screen of number is further increased, influence concentrated effect; The velocity deviation dense, the thin powdered coal air-flow in this inspissator exit is bigger, and assignment of traffic is unreasonable.In order to overcome the defective that screen formula shutter Pulverized Coal Concentration device exists, wedge shape grid breeze airflow gas, the solid separation and enrichment facility have appearred again, the patent No. is ZL200420032503.9, this wedge shape grid pulverized coal concentrator, substitute the board-like grid of louver pulverized coal concentrator with the wedge shape grid, and on the grid number, be reduced to 2-5, overcome the coal dust depositional phenomenon of louver pulverized coal concentrator effectively, resistance further reduces, and the velocity deviation dense, the thin powdered coal air-flow in inspissator exit reduces to some extent, the assignment of traffic deviation reduces to some extent.But because this enrichment facility is not completely free of the form of bar structure, resistance can not further reduce again, dense, the velocity deviation of thin powdered coal air-flow in inspissator exit and the defective of assignment of traffic deviation fail to overcome fully, and then have also influenced further improving again of Pulverized Coal Concentration effect.
The utility model content:
The purpose of this utility model provide a kind of simple in structure, gas-flow resistance is little, long service life, can reduce the velocity deviation of dense, the light air-flow of inspissator outlet, the long-tail wedge-type Pulverized Coal Concentration device of effective and reasonable dispense flow rate.
To achieve these goals, the utility model comprises: the cuboid housing, dividing plate, mound body bump explant, long-tail wedge shape damping baffle, the cuboid housing left side is an inlet, cuboid housing the right is outlet, fixedly installed a mound body bump explant in that a side of cuboid housing porch is adherent, close middle part setting in cuboid housing exit is provided with a dividing plate, outlet is divided into thick coal culm air stream outlet and thin powdered coal air stream outlet, between mound body bump explant and dividing plate a long-tail wedge shape damping baffle is set, long-tail wedge shape damping baffle is positioned at the middle part of cuboid housing.
The angle of attack of the mound body bump explant fluoran stream surface described in the utility model is 20 °～40 °, and its height is 0.15～0.45 with the ratio of the height of place face cuboid housing inner chamber.
The angle of attack of the long-tail wedge shape damping baffle fluoran stream surface described in the utility model is 5 °～30 °, and its height is 0.05～0.30 with the ratio of the height of place face cuboid housing inner chamber.
Like this, one time the wind breeze airflow is entered by inlet, through mound body bump explant the time, the facing the wind inclined-plane and the airflow strikes of mound body bump explant, because of the mass inertia of coal dust particle and gas different, the offside that air-flow at mound body bump explant rear portion has formed mound body bump explant is the thick coal culm air-flow, and the air-flow that clashes into the sidewall at explant place near the mound body is the thin powdered coal air-flow, produces first separation, concentrates.Behind a segment distance, flow to long-tail wedge shape damping baffle, because the effect on the head sharp side of long-tail wedge shape damping baffle, air-flow is concentrated by secondary separation; The afterbody of long-tail wedge shape damping baffle particularly is with the lead main flow of light air-flow side of attached the lighter air-flow at its back; And the housing wallboard of the outside of belly of long-tail wedge shape damping baffle and mound body bump explant place side has formed one section convergent shape passage, the flow velocity of the light sidewind of this passage of process increases, pressure decreases, attached the air-flow that helps long-tail wedge shape damping baffle back more is imported into light side primary air, further improved the effect that concentrates; Outlet dividing plate and long-tail wedge shape damping baffle stand away, and form a water conservancy diversion window.The exit dividing plate with dense, light air-flow separately forms exit passageway dense, the thin powdered coal air-flow, and mound body bump explant place side is light powder air stream outlet, and mound body bump explant and long-tail wedge shape damping baffle spike institute offside are dense powder air stream outlet.Form the Pulverized Coal Concentration device owing to adopted a mound body bump explant and long-tail wedge shape damping baffle, improved the effect of the gas of a wind breeze airflow, solid separation and Pulverized Coal Concentration, the speed of dense, light air-flow of outlet and flow configuration are reached rationally and can design as required, change, having structure simplifies more, resistance further reduces, characteristics such as prolongation in service life.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is an external structure schematic diagram of the present utility model.
Fig. 2 is the A-A sectional structure schematic diagram of embodiment 1
Fig. 3 is the A-A sectional structure schematic diagram of embodiment 2
The specific embodiment:
As seen from Figure 1, Figure 2, the utility model comprises: cuboid housing 2, dividing plate 4, mound body bump explant 7, long-tail wedge shape damping baffle 6.Cuboid housing 2 left sides are inlets 1, and inlet is connected with a wind powder feeding pipes, and cuboid housing the right is outlet, and outlet is connected with combustor inlet.Fixedly installed a mound body bump explant 7 in that a side of cuboid housing 2 porch is adherent, close the middle part setting in cuboid housing 2 exits is provided with a dividing plate 4, and outlet is divided into thick coal culm air stream outlet 3 and thin powdered coal air stream outlet 5.Between mound body bump explant 7 and dividing plate 4 a long-tail wedge shape damping baffle 6 is set, long-tail wedge shape damping baffle 6 is positioned at the middle part of cuboid housing, and its section is little wedge band one a tabular long-tail 8.For realizing that a general mood flows dense, the light state of separated simmer down to level is the deep or light state of left and right sides, mound body bump explant 7, long-tail wedge shape damping baffle 6, dividing plate 4 all are vertically installed in the cuboid housing 2, up and down two ends respectively with the cuboid housing up and down inwall be tightened to one.The spike of mound body bump explant 7 and the spike of long-tail wedge shape damping baffle 6 are all towards the offside wall.Cuboid housing 2, dividing plate 4, mound body bump explant 7, long-tail wedge shape damping baffle 6 all adopt wear-resisting abrasionproof technical finesse.
By Fig. 1, Fig. 3 as can be known, the utility model comprises: cuboid housing 2, dividing plate 4, mound body bump explant 7, long-tail wedge shape damping baffle 6.Cuboid housing 2 left sides are inlets 1, and inlet is connected with a wind powder feeding pipes, and cuboid housing the right is outlet, and outlet is connected with combustor inlet.Fixedly installed a mound body bump explant 7 in that a side of cuboid housing 2 porch is adherent, close the middle part setting in cuboid housing 2 exits is provided with a dividing plate 4, and outlet is divided into thick coal culm air stream outlet 3 and thin powdered coal air stream outlet 5.Between mound body bump explant 7 and dividing plate 4 a long-tail wedge shape damping baffle 6 is set, long-tail wedge shape damping baffle 6 is positioned at the middle part of cuboid housing, and its section is a big wedge long-tail.For realizing that a general mood flows dense, the light state of separated simmer down to level is the deep or light state of left and right sides, mound body bump explant 7, long-tail wedge shape damping baffle 6, dividing plate 4 all are vertically installed in the cuboid housing 2, up and down two ends respectively with the cuboid housing up and down inwall be tightened to one.The spike of mound body bump explant 7 and the spike of long-tail wedge shape damping baffle 6 are all towards the offside wall.Cuboid housing 2, dividing plate 4, mound body bump explant 7, long-tail wedge shape damping baffle 6 all adopt wear-resisting abrasionproof technical finesse.
Claims (3)
1, a kind of long-tail wedge-type Pulverized Coal Concentration device, comprise: cuboid housing (2), dividing plate (4), mound body bump explant (7), long-tail wedge shape damping baffle (6), the cuboid housing left side is an inlet (1), cuboid housing the right is outlet, it is characterized in that having fixedly installed a mound body bump explant (7) in that a side of cuboid housing (2) porch is adherent, close middle part setting in cuboid housing (2) exit is provided with a dividing plate (4), outlet is divided into thick coal culm air stream outlet (3) and thin powdered coal air stream outlet (5), between mound body bump explant (7) and dividing plate (4) a long-tail wedge shape damping baffle (6) is set, long-tail wedge shape damping baffle (6) is positioned at the middle part of cuboid housing.
2, long-tail wedge-type Pulverized Coal Concentration device according to claim 1 is characterized in that the angle of attack of described mound body bump explant fluoran stream surface is 20 °～40 °, and its height is 0.15～0.45 with the ratio of the height of place face cuboid housing inner chamber.
3, long-tail wedge-type Pulverized Coal Concentration device according to claim 1 is characterized in that the angle of attack of described long-tail wedge shape damping baffle fluoran stream surface is 5 °～30 °, and its height is 0.05～0.30 with the ratio of the height of place face cuboid housing inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620135150 CN200986206Y (en) | 2006-12-21 | 2006-12-21 | Long tail wedge-type coal fines concentrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620135150 CN200986206Y (en) | 2006-12-21 | 2006-12-21 | Long tail wedge-type coal fines concentrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986206Y true CN200986206Y (en) | 2007-12-05 |
Family
ID=38915663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620135150 Expired - Fee Related CN200986206Y (en) | 2006-12-21 | 2006-12-21 | Long tail wedge-type coal fines concentrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200986206Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151014A (en) * | 2018-01-03 | 2018-06-12 | 哈尔滨工业大学 | A kind of lower resistance louver pulverized coal concentrator with triangular prism structure concentration grid |
| CN109442396A (en) * | 2018-11-28 | 2019-03-08 | 华北电力大学 | A kind of horizontal and Louver type concentrated diluted pulverized coal burner |
-
2006
- 2006-12-21 CN CN 200620135150 patent/CN200986206Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151014A (en) * | 2018-01-03 | 2018-06-12 | 哈尔滨工业大学 | A kind of lower resistance louver pulverized coal concentrator with triangular prism structure concentration grid |
| CN109442396A (en) * | 2018-11-28 | 2019-03-08 | 华北电力大学 | A kind of horizontal and Louver type concentrated diluted pulverized coal burner |
| CN109442396B (en) * | 2018-11-28 | 2024-06-04 | 华北电力大学 | Shutter type horizontal thick and thin pulverized coal burner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102080443B (en) | Multi-power source adjustable voltage-transforming fire-proof exhaust passage system | |
| CN106224949B (en) | A kind of non-coaxial horizontal bias low NOx DC coal burner | |
| WO2009143016A3 (en) | Skimmer for concentrating an aerosol | |
| CN102470399A (en) | Vertical roller mill | |
| CN200986206Y (en) | Long tail wedge-type coal fines concentrating device | |
| CN101513635B (en) | High-efficiency low-resistance coal powder light-dark separation device used for W-shaped flame boiler | |
| CN201615479U (en) | Combined vertical rich-lean pulverized coal concentration device | |
| CN108151014A (en) | A kind of lower resistance louver pulverized coal concentrator with triangular prism structure concentration grid | |
| CN203273882U (en) | Pulverized coal burner | |
| CN201883663U (en) | Multi-motive-power-source adjustable variable-pressure fireproof exhaust passage system | |
| CN101767068A (en) | Spiral separating device | |
| CN201028510Y (en) | Bluff body coal dust combustor | |
| CN2410042Y (en) | Axial direction coarse grain separator | |
| CN2705711Y (en) | Coal powder concentrator using hill and open blade | |
| CN202166053U (en) | Anti-coking combustor of pulverized coal-fired boiler | |
| CN210875754U (en) | Medium speed pulverizer wind ring structure of flow equalizing | |
| CN205672581U (en) | A kind of New forced circulating evaporator magma drawing mechanism | |
| CN108758615B (en) | Four-corner tangential pulverized coal combustion boiler and coal-fired power generation system | |
| CN2684026Y (en) | Pulverized coal airflow gas-solid separating and concentrating unit using wedge shaped grating | |
| CN105536520B (en) | Fairing and method for rectifying for SCR denitration device | |
| CN101995018A (en) | Cyclone pulverized coal burner | |
| CN207035103U (en) | A kind of safer block type shade burner | |
| CN207350328U (en) | The reliable dense-dilute concentration type direct flow pulverized coal burner of few-oil ignition | |
| CN202902272U (en) | Low-NOX-content rich-lean pulverized coal burner | |
| CN215831902U (en) | Low resistance dense-thin pulverized coal separator with high separation efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071205 Termination date: 20101221 |