CN203963982U - A kind of direct-firing fuel pulverizing plant - Google Patents
A kind of direct-firing fuel pulverizing plant Download PDFInfo
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- CN203963982U CN203963982U CN201420429821.2U CN201420429821U CN203963982U CN 203963982 U CN203963982 U CN 203963982U CN 201420429821 U CN201420429821 U CN 201420429821U CN 203963982 U CN203963982 U CN 203963982U
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- assembly
- coal
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- inlet device
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Abstract
The utility model discloses a kind of direct-firing fuel pulverizing plant, it relates to coal dust manufacture technology field, the bottom of right side bearing block assembly is provided with feed end bearing box and supports, the internal sleeve of housing assembly is connected to spindle assemblies, the outside horizontally set of housing assembly enter coal case assembly, the top of entering coal case assembly is connected with spiral coal inlet device assembly, coal bunker is connected with base assembly, the lower end of coal dust sorter assembly is communicated with housing assembly, spiral coal inlet device assembly top is provided with waste-heat recovery device, spiral coal inlet device assembly is connected with frequency modulation motor by chain, one side of frequency modulation motor is provided with motor, the bottom of motor is provided with motor base assembly.It is directly controlled by frequency conversion, one key startup, easy operating, safe and reliable to operation, time saving and energy saving, not only energy-conservation but also environmental protection, for considerable benefit improves in enterprise, for country saves physical resources, fill up the blank of China's miniature boiler and kiln compound combustion power-saving technology.
Description
Technical field:
The utility model relates to a kind of direct-firing fuel pulverizing plant, belongs to coal dust manufacture technology field.
Background technology:
Coal dust is the one of fuel, and the Main Physical Characteristics of coal dust has following several respects:
(1) particle characteristics coal dust is made up of size difference, in irregular shape powder, and general pulverized coal particle diameter range is 1-1000um, the particle of most 20-50um;
(2) the density coal dust density of coal dust is less, and the coal dust bulk density newly grinding is crossed and is about (0.45-0.5) t/m3, and after storage certain hour, bulk density is (0.8-0.9) t/m3;
(3) to have mobility pulverized coal particle very thin for coal dust, and the coal dust of unit mass has larger surface area, surperficial adsorbable large quantity of air, thereby the mobility of making it have.This characteristic, makes coal dust be convenient to strength and carries, and shortcoming is easily to form coal dust gravity flow, easily leaks powder when equipment imprecision.
Current fuel pulverizing plant is relatively simple for structure, is mostly manual operation, and there is no the operations such as waste heat recovery, deironing, bearing cooling, and energy utilization rate is low, and environmental protection degree is not high.
Utility model content:
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of direct-firing fuel pulverizing plant.
The direct-firing fuel pulverizing plant of one of the present utility model, it comprises base assembly, bearing box support, protective cover for belt pulley, bearing block assembly, housing assembly, coal dust sorter assembly, coal bunker, oil sealing, bearing, eyesight elbow overflow lip, the support of feed end bearing box, deironing apparatus, enters coal case assembly, spindle assemblies, frequency modulation motor, spiral coal inlet device assembly, motor, motor base assembly, waste-heat recovery device, bearing cap and oil pipe; The top of base assembly is provided with spindle assemblies, the two ends of spindle assemblies are provided with bearing, the bottom of bearing is provided with bearing block assembly, the arranged outside of left side bearing block assembly has protective cover for belt pulley, the arranged outside of right side bearing block assembly has bearing cap, the bottom of left side bearing block assembly is provided with bearing box and supports, and the bottom of right side bearing block assembly is provided with feed end bearing box and supports, and the internal sleeve of housing assembly is connected to spindle assemblies.
As preferably, one side of described housing assembly is provided with deironing apparatus, the outside horizontally set of housing assembly enter coal case assembly, deironing apparatus is arranged on coal case assembly, the top of entering coal case assembly is connected with spiral coal inlet device assembly, coal bunker is connected with base assembly, the lower end of coal dust sorter assembly is communicated with housing assembly, spiral coal inlet device assembly top is provided with waste-heat recovery device, spiral coal inlet device assembly is connected with frequency modulation motor by chain, one side of frequency modulation motor is provided with motor, the bottom of motor is provided with motor base assembly, the outside of bearings at both ends is connected with oil pipe by eyesight elbow overflow lip, the opposite side inside of bearings at both ends is provided with oil sealing.
As preferably, described deironing apparatus comprises into coal box magnetic door and strong magnets, and strong magnets is fixed by screws on coal box magnetic door.
The beneficial effects of the utility model are: it is directly controlled by frequency conversion, one key startup, easy operating, safe and reliable to operation, time saving and energy saving, not only energy-conservation but also environmental protection, for considerable benefit improves in enterprise, for country saves physical resources, fill up the blank of China's miniature boiler and kiln compound combustion power-saving technology.
Brief description of the drawings:
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model,
Fig. 2 is left view of the present utility model,
Fig. 3 is top view of the present utility model,
Fig. 4 is the A portion enlarged drawing of Fig. 1,
Fig. 5 is the C portion enlarged drawing of Fig. 2.
In figure: 1-base assembly; 2-bearing box supports; 3-protective cover for belt pulley; 4-bearing block assembly; 5-housing assembly; 6-coal dust sorter assembly; 7-coal bunker; 8-oil sealing; 9-bearing; 10-eyesight elbow overflow lip; 11-feed end bearing box supports; 12-deironing apparatus; 13-enters coal case assembly; 14-spindle assemblies; 15-frequency modulation motor; 16-spiral coal inlet device assembly; 17-motor; 18-motor base assembly; 19-waste-heat recovery device; 20-bearing cap; 21-oil pipe; 22-enters coal box magnetic door; 23-strong magnets.
Detailed description of the invention:
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below by the specific embodiment shown in accompanying drawing, the utility model is described.But should be appreciated that, these descriptions are exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, omitted the description to known features and technology, to avoid unnecessarily obscuring concept of the present utility model.
As Figure 1-5, this detailed description of the invention by the following technical solutions: it comprises base assembly 1, bearing box support 2, protective cover for belt pulley 3, bearing block assembly 4, housing assembly 5, coal dust sorter assembly 6, coal bunker 7, oil sealing 8, bearing 9, eyesight elbow overflow lip 10, feed end bearing box support 11, deironing apparatus 12, enters coal case assembly 13, spindle assemblies 14, frequency modulation motor 15, spiral coal inlet device assembly 16, motor 17, motor base assembly 18, waste-heat recovery device 19, bearing cap 20 and oil pipe 21; The top of base assembly 1 is provided with spindle assemblies 14, the two ends of spindle assemblies 14 are provided with bearing 9, the bottom of bearing 9 is provided with bearing block assembly 4, the arranged outside of left side bearing block assembly 4 has protective cover for belt pulley 3, the arranged outside of right side bearing block assembly 4 has bearing cap 20, the bottom of left side bearing block assembly 4 is provided with bearing box and supports 2, and the bottom of right side bearing block assembly 4 is provided with feed end bearing box and supports 11, and the internal sleeve of housing assembly 5 is connected to spindle assemblies 14.
Further, one side of described housing assembly 5 is provided with deironing apparatus 12, the outside horizontally set of housing assembly 5 enter coal case assembly 13, deironing apparatus 12 is arranged on coal case assembly 13, the top of entering coal case assembly 13 is connected with spiral coal inlet device assembly 16, coal bunker 7 is connected with base assembly 1, the lower end of coal dust sorter assembly 6 is communicated with housing assembly 5, spiral coal inlet device assembly 16 tops are provided with waste-heat recovery device 19, spiral coal inlet device assembly 16 is connected with frequency modulation motor 15 by chain, one side of frequency modulation motor 15 is provided with motor 17, the bottom of motor 17 is provided with motor base assembly 18, the outside of bearings at both ends 9 is connected with oil pipe 21 by eyesight elbow overflow lip 10, the opposite side inside of bearings at both ends 9 is provided with oil sealing 8.
Further, described deironing apparatus comprises into coal box magnetic door and strong magnets, and strong magnets is fixed by screws on coal box magnetic door.
This detailed description of the invention is on the basis of original bearing block, increase an eyesight elbow overflow lip 10, in the time that main shaft is made high speed rotary motion, lubricating oil temperature raises, volume increases, and in the time that high temperature grease exceedes regulation spacing, lubricating oil unnecessary, that temperature is higher flows out by eyesight elbow overflow lip 10 from bearing clearance, flow in waste liquid cylinder below, make like this bearing temperature remain at and be not more than 70 DEG C, extended the service life of bearing, saved maintenance cost.
And it has increased waste-heat recovery device, as supporting coal dust firing, than using in the past natural air as supporting coal dust firing, greatly save coal consumption with hot-air, it is existing that taking hot-air as 100 DEG C, the fuel value of bituminous coal is calculated with 6000 kilocalories, and natural air is 20 DEG C.So, coal conservation is about 16.4 ‰ left and right, for economic benefit has improved in enterprise.
When use, deironing apparatus is placed on before particulate coal enters pulverized coal preparation system coal-grinding storehouse, be particulate coal the only way which must be passed herein and have enough spaces, ferrous mineral in coal is all adsorbed, simple and convenient when cleaning iron ore material, the wearing and tearing of tup and liner plate are greatly reduced, avoid with front because installation site is unreasonable and there is no deironing apparatus at all, in the time that iron ore substance accumulation is too much, iron ore material enters in coal-grinding storehouse with particulate coal, tup and liner plate are caused to great wearing and tearing, greatly shortened the service life of tup and liner plate.
The operation principle of this detailed description of the invention is: install ready after, in coal bunker, put into after particulate coal, one key starts powder coal milling system, waste-heat recovery device starts thereupon simultaneously, then delayed startup coal supply system, transfer frequency conversion, amount is adjusted the rotating speed of coal supply system motor as required, control coal input quantity, adjust nature air door, realize the proportioning of cold wind and hot blast, now fuel pulverizing plant enters duty, particulate coal is after deironing apparatus screening, enter in a storehouse of pulverized coal preparation system, in pulverized coal preparation system, because the tup on main shaft rotor driven is made high speed rotary motion and produced high pressure draught, tup carries out high speed to particulate coal and pats, simultaneously, particulate coal is carried out speed lapping between tup and liner plate, implementation one-level is pulverized, the coal dust of certain fineness enters in two storehouses of pulverized coal preparation system automatically, carry out secondary pulverizing, in like manner, enter and in three storehouses, carry out three grades of pulverizing, now, the coal dust of fine directly enters Feng Cang, by the fan in wind storehouse, send into coal powder conveying system, in the burner hearth of through boiler with just on fire grate burned flame carry out moment suspension combustion, produce a large amount of heat, improve fire box temperature, the overall thermal efficiency of boiler.Meanwhile, reduce the fire grate rotating speed of chain-grate boiler or reduce the coal seam on fire grate, being sparing in the use of coal thereby reach, reducing costs, the effect such as increase economic efficiency.
This detailed description of the invention has realized stokehold powder process, automatic transport in the case of any structure and characteristics that does not change former boiler, coal dust firing is combined with grate firing, on traditional chain bar oven fire grate, carry out firing as auxiliary compound combustion as main, chamber taking grate firing, make chain-grate boiler and coal-powder boiler aspect burning, respectively get the chief, thereby improve boiler thermal output.Meanwhile, it is with residual neat recovering system, and coal dust is fine again; the hot-air of uniform temperature is supported coal dust firing in burner hearth, and coal dust moment is caught fire, and burnout rate is improved; reduce heat loss due to exhaust gas, reduced exhaust gas temperature and exhaust smoke level, protected atmospheric environment.Fire grate coal supply speed slows down, and after the attenuate of coal seam, the coal on fire grate has extended burning time, and coal bed ventilation coefficient increases, and the phosphorus content of cinder reduces, thereby reaches energy-conservation object.Microfine coal catches fire rapidly, and burnout rate is high, has saved with coal, reduces the discharge of sulfur dioxide, carbon dioxide and other pernicious gas.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a direct-firing fuel pulverizing plant, it is characterized in that: it comprises base assembly (1), bearing box supports (2), protective cover for belt pulley (3), bearing block assembly (4), housing assembly (5), coal dust sorter assembly (6), coal bunker (7), oil sealing (8), bearing (9), eyesight elbow overflow lip (10), feed end bearing box supports (11), deironing apparatus (12), enter coal case assembly (13), spindle assemblies (14), frequency modulation motor (15), spiral coal inlet device assembly (16), motor (17), motor base assembly (18), waste-heat recovery device (19), bearing cap (20) and oil pipe (21), the top of base assembly (1) is provided with spindle assemblies (14), the two ends of spindle assemblies (14) are provided with bearing (9), the bottom of bearing (9) is provided with bearing block assembly (4), bearings at both ends holder assembly outside is provided with elbow overflow lip (10), the arranged outside of left side bearing block assembly (4) has protective cover for belt pulley (3), the arranged outside of right side bearing block assembly (4) has bearing cap (20), the bottom of left side bearing block assembly (4) is provided with bearing box and supports (2), the bottom of right side bearing block assembly (4) is provided with feed end bearing box and supports (11), the internal sleeve of housing assembly (5) is connected to spindle assemblies (14).
2. the direct-firing fuel pulverizing plant of one according to claim 1, it is characterized in that: a side of described housing assembly (5) is provided with deironing apparatus (12), the outside horizontally set of housing assembly (5) enter coal case assembly (13), deironing apparatus (12) is arranged on coal case assembly (13), the top of entering coal case assembly (13) is connected with spiral coal inlet device assembly (16), coal bunker (7) is connected with base assembly (1), the lower end of coal dust sorter assembly (6) is communicated with housing assembly (5), spiral coal inlet device assembly (16) top is provided with waste-heat recovery device (19), spiral coal inlet device assembly (16) is connected with frequency modulation motor (15) by chain, one side of frequency modulation motor (15) is provided with motor (17), the bottom of motor (17) is provided with motor base assembly (18), the outside of bearings at both ends holder assembly (4) is connected with oil pipe (21) by eyesight elbow overflow lip (10), the opposite side inside of bearings at both ends (9) is provided with oil sealing (8).
3. the direct-firing fuel pulverizing plant of one according to claim 1, it is characterized in that: described deironing apparatus (12) comprises into coal box magnetic door (22) and strong magnets (23), and strong magnets (23) is fixed by screws on coal box magnetic door (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429821.2U CN203963982U (en) | 2014-07-31 | 2014-07-31 | A kind of direct-firing fuel pulverizing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429821.2U CN203963982U (en) | 2014-07-31 | 2014-07-31 | A kind of direct-firing fuel pulverizing plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203963982U true CN203963982U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420429821.2U Expired - Fee Related CN203963982U (en) | 2014-07-31 | 2014-07-31 | A kind of direct-firing fuel pulverizing plant |
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| Country | Link |
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| CN (1) | CN203963982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737183A (en) * | 2016-01-28 | 2016-07-06 | 徐海慧 | Novel environment-friendly purification boiler for thermal power plant |
-
2014
- 2014-07-31 CN CN201420429821.2U patent/CN203963982U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737183A (en) * | 2016-01-28 | 2016-07-06 | 徐海慧 | Novel environment-friendly purification boiler for thermal power plant |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20190731 |