CN102284334A - Multi-cavity swirl impact crusher with hot air balance pipes - Google Patents
Multi-cavity swirl impact crusher with hot air balance pipes Download PDFInfo
- Publication number
- CN102284334A CN102284334A CN201110176266A CN201110176266A CN102284334A CN 102284334 A CN102284334 A CN 102284334A CN 201110176266 A CN201110176266 A CN 201110176266A CN 201110176266 A CN201110176266 A CN 201110176266A CN 102284334 A CN102284334 A CN 102284334A
- Authority
- CN
- China
- Prior art keywords
- cavity
- chamber
- swirling flow
- coal
- main frame
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a multi-cavity swirl impact crusher with hot air balance pipes. The crusher consists of a feeding device consisting of a funnel, a spiral conveyer and a speed regulating motor, a crushing device consisting of a main motor and a crusher main machine, a filter recoverer and an automatic control device, wherein a pair of high-temperature flue gas conveying balance pipes is arranged at two ends above each cavity of the crusher main machine; a single cavity of the conventional crusher main machine is changed into two to four cavities; a swirl impeller is arranged in each cavity and is connected to a rotating spindle; a crushing fly hammer is arranged on the top of each swirl impeller; a fan blade fly hammer is arranged on the middle part of the swirl impeller in the last cavity; and an inclined gear ring is arranged between each crushing fly hammer and each cavity of the crusher main machine. The quantity and pressure of air conveyed by the hot air balance pipes are adjusted to balance the conveying speed of coal powder in each cavity of the crusher main machine and prolong the retention time of the coal powder, the coal powder is repeatedly hammered and ground, and the particle size is fully refined; and the water content of the coal powder is less than 5 percent, the particle size can be 500 to 1,000 meshes averagely, and coal can be saved by over 10 percent.
Description
Technical field
A kind of multi-cavity type swirling flow impact grinder with the hot blast balance pipe relates to that coal in the combustion apparatus of the auxiliary combustion equipment of the chain furnace that is applied in the industry coal-boiler, reciprocating furnace and Industrial Stoves is pulverized and the architecture advances of drying unit.
Background technology
Coal pulverizer in the market only is applicable to the pulverizing of the coal cinder that dry coal piece or water content are lower, because the viscosity of wet coal is big, cause pulverizer to stop up easily, so both influenced the operation of machine, strengthen the degree of wear of machine, influenced output, fineness degree and the aridity of output coal dust simultaneously again.The patent No. is said single chamber swirling flow impact grinder in 200920194199.0 the utility model patent, rotates at a high speed by the moving flyball of leaf dribbling, and common fire coal is crushed to 200 orders (75 μ m) size; The air pressure that utilizes impeller to rotate generation at a high speed simultaneously screens coal dust, make and meet volume and blown toward the burner hearth burning less than 200 orders and the low coal dust of water content, then be filtered the retracting device recovery greater than 200 orders or the more coal dust of water content, return and continue in the reducing mechanism to pulverize.Because the dry coal dust that sprays in the burner hearth can fully burn fast, has improved the burning condition of boiler, improve boiler thermal output and save coal-fired purpose thereby reach.Because the air pressure that above-mentioned said pulverizer only utilizes impeller to rotate generation at a high speed screens coal dust, and just adopt single chamber pulverizer to carry out the hammering coal dust, coal dust holdup time in the chamber is relatively short, the time of flyball hammering coal dust is short, and the coarse size fineness that coal dust is pulverized is difficult to further promote; Though simultaneously through super-dry, the air pressure that impeller rotates generation at a high speed is dry insufficient to coal dust, and coal dust is bondd in pulverizer easily before entering pulverizer for coal dust, the conglomeration that bonds for a long time also can result in blockage to pulverizer.
Summary of the invention
The object of the present invention is to provide and a kind ofly can impact coal dust with hot blast rate and the blast that the multi-cavity type swirling flow of band hot blast balance pipe is introduced in the boiler, further coal dust is dried, with the transporting velocity of balance coal dust in pulverizer main frame chamber, improve aridity to coal dust; Can increase simultaneously coal dust a plurality of crushing chambers of hammering repeatedly, make coal dust holdup time in the chamber relatively long, thereby increase the time of flyball hammering coal dust, make through the pulverized coal particle of hammering young more thin.
The multi-cavity type swirling flow impact grinder of the said band hot blast of the present invention balance pipe, the pay-off of forming by funnel 1, auger conveyor 2, variable-speed motor 3, the reducing mechanism of forming by main motor 4, pulverizer main frame 5, with form by filtered and recycled device 8 and automaton, wherein two ends increase a pair of back high-temperature flue gas conveying balance pipe 6 and preceding high-temperature flue gas conveying balance pipe 7 above the machine chamber of pulverizer main frame 5, and said pay-off is connected with reducing mechanism is orthogonal thereto.When actual production, the children is thin more for the particle that improves coal dust, said pulverizer main frame 5 is increased to 2 to 4 chambeies from original single chamber, in pulverizing main frame chamber 5, each respectively is equipped with 1 swirling flow impeller 9, be connected on the rotary main shaft 13 of main motor 4 drives, pulverizing flyball 10 is installed in the top of the swirling flow impeller 9 in each chamber, and flabellum flyball 11 adopts strides the middle part that impeller radius is installed in the swirling flow impeller 9 in last chamber significantly, and oblique gear ring 12 is packed in the inwall in pulverizer main frame chamber 5.
Adopted the multi-cavity type swirling flow impact grinder of the band hot blast balance pipe of the said structure of the present invention, owing to utilize the hot blast balance pipe at two ends, pulverizer main frame chamber, connect boiler air preheater and draw high temperature hot gas, or directly draw high-temperature flue gas from burner hearth, import to and pulverize in the main frame chamber, moisture higher coal is done further oven dry.By the air quantity that the hot blast balance pipe of regulating two ends is carried, adjust blast with the transporting velocity of balance coal dust in pulverizing the main frame chamber, prolong the coal dust holdup time, increase the hammering time and the drying time of coal dust; Increased more than one pulverizer main frame chamber simultaneously, corresponding is exactly to have increased more than one many group swirling flow impellers 9 and pulverized the breaker that flyball 10 is formed, thereby increase disturbance and fragmentation to coal dust, the realization coal dust repeatedly by hammering and grinding, makes the granularity of coal dust fully young thin in a plurality of main frames chamber.Multiple pulverizing has prolonged the life-span that machine uses when crushing effect is improved, the design of multi-cavity realizes that also a large amount of coal cinders pulverizes simultaneously, has guaranteed to be supplied to the coal dust amount of boiler.The water content of coal dust after drying can be lower than 5%, and coal powder size on average can reach more than 500 orders (20 μ m), is up to 1000 orders (10 μ m), thereby improves the abundant of boiler combustion, and saving fire coal can reach more than 10%.
Description of drawings
Fig. 1 is the structural representation of the multi-cavity type swirling flow impact grinder of the said band hot blast of the present invention balance pipe;
Fig. 2 is pulverizer main frame 5 structural representations of the multi-cavity type swirling flow impact grinder of the said band hot blast of the present invention balance pipe.
1. funnels among the figure, 2. auger conveyor, 3. variable-speed motor, 4. main motor, 5. main frame chamber, 6. high-temperature hot-air carrier pipe after, 7. preceding high-temperature hot-air carrier pipe, 8. swirling flow filtered and recycled device, 9 swirling flow impellers, 10. pulverizing flyball, 11. flabellum flyballs, 12. oblique gear rings, 13. main shafts.
The specific embodiment
The structure and the use principle of the multi-cavity type swirling flow impact grinder of the said band hot blast of the present invention balance pipe are described in detail in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the multi-cavity type swirling flow impact grinder of the said band hot blast of the present invention balance pipe, form pay-off by funnel 1, auger conveyor 2, variable-speed motor 3, by main motor 4, pulverize the reducing mechanism that main frame chamber 5 is formed, form by filtering recovering device 8 and automaton simultaneously, wherein pay-off is connected with reducing mechanism is orthogonal thereto, two ends increase a pair of back high-temperature flue gas conveying balance pipe 6 and preceding high-temperature flue gas conveying balance pipe 7 above pulverizer main frame chamber, and said pay-off is connected with reducing mechanism is orthogonal thereto.
In actual use, Yi Bian at first pay-off is by carrying fire coal to enter in the reducing mechanism, whole transportation process can realize stepless speed regulation control coal input quantity by variable speed electric motors, particularly 3 controls, and coal cinder is pulverized and dried after entering pulverizer main frame chamber 5.Pulverize and dry the back coal dust and be delivered to swirling flow filtered and recycled device 8, all coal dusts are behind collision swirling flow filtered and recycled device 8, and kinetic energy is weakened, makes blast be not enough to bulky grain is blown away, and has only by retracting device and gets back to pulverizing again in the main frame chamber.High-temperature hot-air is set near 5 axle center, main frame chamber, front and back carries balance pipe 6,7, be connected with the air preheater of boiler, or directly draw high-temperature flue gas from burner hearth.When high-temperature hot- air carrier pipe 6,7 two ends air pressure imbalances.By the valve regulated hot blast rate of front and back conveying balance pipe 6,7, adjust blast with the transporting velocity of balance coal dust in the chamber, prolong the coal dust holdup time, realize hammering repeatedly, and then realize the granule size of coal dust is regulated coal dust.Preceding hot blast conveying pipe 7 near coal inlet end is opened, and when closing near the back hot blast conveying pipe 6 of meal outlet end, the hot blast flow velocity is fast in the chamber, and the coal dust holdup time is short, and the hammering time is short, and coal dust is thick; Preceding hot blast conveying pipe 7 near coal inlet end is opened, and when also opening near the back hot blast conveying pipe 6 of meal outlet end, the hot blast flow velocity is slow in the chamber, and the coal dust holdup time is long, and the hammering time is long, and coal dust children more is thin.By the high-temperature hot-air of anterior-posterior balance pipe introducing boiler, or high-temperature flue gas, except implementing coal dust oven dry conveying function, also realize the granule size of coal dust is regulated, reach the optimal economic granularity.
As shown in Figure 2, the children is thin more for the particle that improves coal dust, the multi-cavity type swirling flow impact grinder of the said band hot blast of the present invention balance pipe, pulverizer main frame 5 is increased to 2 to 4 chambeies from original single chamber, in pulverizing main frame chamber 5, each respectively is equipped with 1 swirling flow impeller 9, be connected on the rotary main shaft 13 of main motor 4 drives, pulverizing flyball 10 is installed in the top of the swirling flow impeller 9 in each chamber, flabellum flyball 11 adopts strides the middle part that impeller radius is installed in the swirling flow impeller 9 in last chamber significantly, and oblique gear ring 12 is packed in the inwall in pulverizer main frame chamber 5.Because each is pulverized and all is equipped with the reducing mechanism that a cover is made up of many groups swirling flow impeller 9 and pulverizing flyball 10 in the main frame chamber, therefore work as main motor 4 and drive to swirling flow impeller 9 by belt, belt pulley and main shaft 13, it is rotated at a high speed, the pulverizing flyball 10 and flabellum flyball 11 of particular design is installed on the swirling flow impeller 9.Pulverize flyball 10 surface parcel one deck special steel materials, increase weight and the case hardness of pulverizing flyball; When impeller 9 drives when pulverizing flyballs 10 and rotating at a high speed, pulverize flyball with high rigidity, high weight with at a high speed coal cinder is thumped.Flabellum flyball 11 adopts and strides the impeller radius installation significantly, impeller 9 is when rotating at a high speed, the coal of 11 pairs of contacts of flabellum flyball produces one perpendicular to the outside pressure in impeller edge, and produce the therefrom air pressure of diffusion around the mind-set, coal dust is dialled outward by axis direction, increased disturbance coal dust.The coal dust bullet that is struck adds the dynamics of forcing crushing on the one hand on the tooth group of oblique tooth group 12 and Bian Gai, inner chamber, produce flow-disturbing on the other hand.Coal cinder is by being transported in the main frame chamber 5 through spiral conveying tube 2 in the funnel 1, the swirling flow impeller 9 of main motor 4 in the main frame chamber provides rotary power, swirling flow impeller 9 rotation at a high speed, driving 10 pairs of coal cinders of pulverizing flyball thumps, 11 pairs of coal dusts of flabellum flyball apply therefrom mind-set blast all around, coal dust hits oblique gear ring 12 and bounce-back, makes between the coal dust and collides mutually, rubs, and plays pulverizing, grinding and stirring action.Have only volume less than 200 orders and moisturely be lower than 5% coal dust, by swirling flow impeller 9 and flabellum flyball 11 at a high speed the air pressure that produces of rotation blow to burner hearth.High-temperature hot-air is set near 5 axle center, main frame chamber, front and back carries balance pipe 6,7, be connected with the air preheater of boiler, or directly draw high-temperature flue gas from burner hearth.When swirling flow impeller 9 when rotation produces negative pressure at a high speed, cause high-temperature hot- air carrier pipe 6,7 two ends air pressure imbalances, swirling flow impeller 9 rotation at a high speed makes air-flow drive high temperature hot gas moment to be dissipated into the inner chamber each several part, to promote the overall temperature of inner chamber.High temperature gas flow cooperates the four-way tooth group on the oblique gear ring 12, and the swirling flow air-flow that generates a plurality of continuous variations stirs and dries coal dust.
The multi-cavity type swirling flow impact grinder conduct of the band hot blast balance pipe of employing structure that the present invention tells is through coal pulverizer, and the coal powder size after the processing on average can reach 500 orders (20 μ m), is up to 1000 orders (10 μ m) size; Simultaneously can introduce the boiler high temperature flue gas to the pulverizer chamber in, coal dust be carried out flue gas stir also and further coal dust is dried, solve the problem that the adhesive bond of wet coal dust results in blockage to pulverizer; Also according to the actual humidity of coal dust and the fineness degree of needs, regulate hot blast rate and blast that two ends, pulverizer main frame chamber hot blast balance pipe is introduced in the boiler, with the transporting velocity of balance coal dust in pulverizer main frame chamber, prolong holdup time and the hammering time of coal dust in pulverizer, realization is regulated the granule size of coal dust, thereby obtains young more thin coal powder size, makes sufficient combustion, save fire coal more than 10%, reach the purpose of energy savings.
Claims (2)
1. multi-cavity type swirling flow impact grinder with the hot blast balance pipe, the pay-off of forming by funnel (1), auger conveyor (2), variable-speed motor (3), by main motor (4), pulverizer main frame (5), the reducing mechanism formed, filtered and recycled device (8), and automaton is formed, it is characterized in that increasing a pair of back high-temperature hot-air balance pipe (6), preceding high-temperature hot-air balance pipe (7) at two ends, top, said pulverizer main frame (5) chamber, said pay-off is connected with reducing mechanism is orthogonal thereto.
2. according to the multi-cavity type swirling flow impact grinder of the said band hot blast of claim 1 balance pipe, it is characterized in that said pulverizer main frame chamber (5) is increased to 2 to 4 chambeies from original single chamber, each is pulverized in the main frame chamber (5) and respectively is equipped with 1 swirling flow impeller (9), be connected on the rotary main shaft (13) of main motor (4) drive, pulverizing flyball (10) is installed in the top of the swirling flow impeller (9) in each chamber, flabellum flyball (11) adopts and strides the middle part that impeller radius is installed in the swirling flow impeller (9) in last chamber significantly, and oblique gear ring (12) is packed in the inwall in pulverizer main frame chamber (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110176266A CN102284334A (en) | 2011-06-28 | 2011-06-28 | Multi-cavity swirl impact crusher with hot air balance pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110176266A CN102284334A (en) | 2011-06-28 | 2011-06-28 | Multi-cavity swirl impact crusher with hot air balance pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102284334A true CN102284334A (en) | 2011-12-21 |
Family
ID=45331248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110176266A Pending CN102284334A (en) | 2011-06-28 | 2011-06-28 | Multi-cavity swirl impact crusher with hot air balance pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102284334A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785515A (en) * | 2012-10-30 | 2014-05-14 | 高国儒 | Multi-chamber tandem-type rotational-flow pulverizer |
| CN104226419A (en) * | 2014-09-01 | 2014-12-24 | 华电电力科学研究院 | Hammer crusher capable of simultaneously crushing and drying coal sample and crushing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039068A (en) * | 1988-06-17 | 1990-01-24 | 乔治·巴让特 | Process for treatment of surface of particulate materials pulverized finely |
| CN201482545U (en) * | 2009-09-08 | 2010-05-26 | 郭汉荣 | Swirling flow impact pulverizer |
| CN101837316A (en) * | 2009-03-21 | 2010-09-22 | 黄石市建材节能设备总厂 | Vertical drying grind ring flow production energy saving and emission reduction process and air distribution equipment thereof |
-
2011
- 2011-06-28 CN CN201110176266A patent/CN102284334A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039068A (en) * | 1988-06-17 | 1990-01-24 | 乔治·巴让特 | Process for treatment of surface of particulate materials pulverized finely |
| CN101837316A (en) * | 2009-03-21 | 2010-09-22 | 黄石市建材节能设备总厂 | Vertical drying grind ring flow production energy saving and emission reduction process and air distribution equipment thereof |
| CN201482545U (en) * | 2009-09-08 | 2010-05-26 | 郭汉荣 | Swirling flow impact pulverizer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785515A (en) * | 2012-10-30 | 2014-05-14 | 高国儒 | Multi-chamber tandem-type rotational-flow pulverizer |
| CN103785515B (en) * | 2012-10-30 | 2016-04-13 | 高国儒 | Multi-cavity tandem eddy flow pulverizer |
| CN104226419A (en) * | 2014-09-01 | 2014-12-24 | 华电电力科学研究院 | Hammer crusher capable of simultaneously crushing and drying coal sample and crushing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201988430U (en) | Fluidized bed jet mill grader | |
| CN202316015U (en) | Energy-saving pulverized coal grinding conveying device for boiler and furnace | |
| US6179231B1 (en) | Method and apparatus for comminuting solid particles | |
| CN202621258U (en) | Titanium dioxide crushing device adopting low-pressure saturated steam | |
| CN106378268A (en) | Adjustable rotary spraying nozzle structure for high-efficiency wear-resistant low-resistant medium-speed vertical coal mill | |
| CN206881826U (en) | Improve the medium-speed pulverizer unit pulverized-coal system contributed with quality of pc | |
| CN106166508B (en) | A kind of efficient lime powder duster | |
| CN203855502U (en) | Sludge treatment device | |
| US6360975B1 (en) | Method an apparatus for comminuting solid particles | |
| CN104858033B (en) | A kind of grinding method | |
| CN102284334A (en) | Multi-cavity swirl impact crusher with hot air balance pipes | |
| CN206104030U (en) | High -efficient lime powder duster | |
| JP2012083016A (en) | Biomass crusher and biomass-coal mixed combustion system | |
| CN204208656U (en) | Medium-speed pulverizer moving-stator blade is in conjunction with separator | |
| CN103071578B (en) | The thin broken duster of moulded coal powdered carbon of a kind of children | |
| CN206253243U (en) | A kind of high-efficiency abrasion-proof lower resistance medium-speed vertical coal pulverizer adjustable rotary nozzle arrangements | |
| CN201728145U (en) | Vertical grinder high-fineness dynamic-static combined separator device | |
| CN202290576U (en) | Powder concentrator guide blade cage | |
| CN204307689U (en) | A kind of limestone desulfurization powder preparation and conveying device | |
| CN104689898B (en) | A kind of slag milling control system of improved structure | |
| CN203874885U (en) | Vertical type roller mill system | |
| CN208458461U (en) | Pneumatic grinding mill coal dust preparation system | |
| CN114453117A (en) | Pulp steam flow crushing dryer | |
| CN201482545U (en) | Swirling flow impact pulverizer | |
| CN203470072U (en) | Sieve-free ultrafine grinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 510620, Guangdong, Guangzhou province Tianhe District Sports East Road, Guangzhou International Business Center N West building, room 2401 Applicant after: Guangdong Xinjie Energy Technology Co., Ltd. Address before: Room 2401, West building, N, Guangzhou International Business Center, East Sports Road, Guangzhou, Tianhe District Applicant before: Guangzhou Xinjie Energy-saving Technology Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: GUANGZHOU XINJIE ENERGY-SAVING TECHNOLOGY CO., LTD. TO: GUANGDONG XINJIE ENERGY SAVING TECHNOLOGY CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111221 |