CN207478697U - A kind of abrasive disk type spring becomes loading middling speed pulverized coal preparation equipment - Google Patents

Abstract

A kind of abrasive disk type spring becomes loading middling speed pulverized coal preparation equipment, belongs to pulverized coal preparation equipment.Being linked in sequence in the separator cover device upper end of the upper end of separator body device has multiple exit device and discharging valve device；Side body set is connected in the bottom of separator body device, being linked in sequence in separator body device and side body set junction has impeller spray ring device and millstone device；Have above millstone device and be oriented to lining board device and Burnisher apparatus, rubber-tyred grinding roller is connected in Burnisher apparatus end；Screeding device, which is connected on millstone device, is placed in bottom in the body set of side, has pebble coal outlet in side body set bottom, reduction box upper end is connect with millstone device, there is seal gas collector outside the body set of side；Deflector is connected between the impeller segment of impeller spray ring device and air throttle ring.Advantage：Simple in structure, reliable, easy to maintenance, unit power consumption is small, service life is long, flour extraction is high, fineness of pulverized coal uniformity is good and can make linear regulation.

Description

A kind of abrasive disk type spring becomes loading middling speed pulverized coal preparation equipment

Technical field

The utility model is related to a kind of pulverized coal preparation equipment, particularly a kind of abrasive disk type spring becomes loading middling speed pulverized coal preparation Equipment.

Background technology

Existing its rolling element of spring loads powder manufacturing apparatus rolls area using taper grinding roller and mill bowl structure form It is restricted, the raw coal of poor quality causes the roller set of grinding roller and bowl milling liner plate service life to substantially reduce.In addition, existing leaf Take turns spray ring device due to structure design it is unreasonable, be susceptible to turbulent flow at impeller spray ring, cause mill up and down pressure difference it is larger with And pebble coal amount it is more the problems such as.

Utility model content

The purpose of this utility model is to provide for a kind of pulverized coal preparation equipment operational reliability, increases pulverized coal preparation efficiency, The abrasive disk type spring for reducing failure rate becomes loading middling speed pulverized coal preparation equipment.

In order to solve the above-mentioned technical problem, the technical solution of above-mentioned purpose, the middling speed pulverized coal preparation of the utility model are realized Equipment includes：Coal spout, discharging valve device, static separation device, inner cone, separator body device, impeller spray ring device, scraper plate dress It puts, pebble coal outlet, reduction box, seal gas collector, millstone device, side body set, be oriented to lining board device, rubber-tyred mill Roller, spring load-variable device, separator cover device, is folded to a regulating device, multiple exit device at Burnisher apparatus；In separator The upper end of body device is connected with separator cover device, and static separation device is connected to separator by static separation device regulating device On cover device, inner cone is connected to the lower end of static separation device, is linked in sequence and has more in the upper end of separator cover device Mouth device and discharging valve device；There is coal spout to be penetrated from static separation device to inner cone；Connect in the bottom of separator body device Side body set is connected to, being linked in sequence in separator body device and side body set junction has impeller spray ring device and mill dress It puts, impeller spray ring device is rotated with millstone device；Have above millstone device and be oriented to lining board device and Burnisher apparatus, lead It is located in separator body device to lining board device and Burnisher apparatus；Lining board device is oriented between Burnisher apparatus two-by-two, impeller The top of spray ring device；The top of Burnisher apparatus is connected with spring load-variable device, and spring load-variable device is mounted on separation On body device；Rubber-tyred grinding roller is connected in Burnisher apparatus end；Screeding device, which is connected on millstone device, is placed in side machine Bottom in body device, screeding device are rotated with millstone device, have pebble coal outlet in side body set bottom, in side machine Body device bottom is connected with reduction box, and reduction box upper end is connect with millstone device, there is seal gas collector outside the body set of side； Deflector is connected between the impeller segment of impeller spray ring device and air throttle ring.

The millstone device includes：Lining board for grinding discs, mill clamping ring, mill and mill extended loop；Lining board for grinding discs is by grinding Disk extended loop and the fixation of mill clamping ring are laid on mill, and lining board for grinding discs is laid on mill frustum inclined-plane, mill extended loop It is bolted outer eaves and the interior eaves in mill respectively with mill clamping ring.

The Burnisher apparatus includes：Rubber-tyred grinding roller, grinding roller seat, heavy-duty bearing, trunnion pivot, shaft of grinding roller and grinding roller Head；Shaft of grinding roller is bolted on grinding roller head, positioned at the first side of grinding roller；Grinding roller seat is mounted on mill by 2 heavy-duty bearings On roll shaft；Rubber-tyred grinding roller is by key and is bolted directly on grinding roller seat；Grinding roller head is mounted on by 2 trunnion pivots On separator body device, and Burnisher apparatus can be overturn by fulcrum of trunnion pivot.

The rubber-tyred grinding roller includes：Roller core and wearable overlay；Heap is welded with wearable overlay on the outside of roller core, described Wearable overlay be antifriction alloy.

The impeller spray ring device includes：Impeller spray ring segment and air throttle ring；Air throttle ring is laid in leaf It takes turns on the blade of spray ring segment and fixed thereto；The impeller spray ring segment includes：Impeller segment, water conservancy diversion liner plate, Adjustable cover and arc outer vertical plate；The upper and lower ends of water conservancy diversion liner plate are respectively welded at the inner ring of air throttle ring and arc outer vertical plate On, arc outer vertical plate is connect with impeller segment, and adjustable cover is connect by bolt with impeller segment, in adjustable cover and Impeller fan There is arc outer vertical plate between body；Adjustable cover can move up and down adjusting height, for adjusting impeller segment with detaching during installation Gap between body device makes the First air of the overwhelming majority pass through through impeller unit, ensure First air to the drying of coal dust and Conveying capacity.

The discharging valve device includes：Plate valve cylinder, three-position four-way valve, pneumatic triple piece, muffler and control system； The control system uses pneumatic actuator；Compressed gas source is connected by pipeline with pneumatic triple piece, and external air source leads to Piping transmits, and is connect respectively with pneumatic triple piece and muffler in two ports of three-position four-way valve side, in opposite side Port of two ports respectively with plate valve cylinder both ends is connect；Three-position four-way valve control pneumatic actuator realizes plate valve cylinder On or off；Signal is controlled to be powered to three-position four-way valve, three-position four-way valve is opened, and compressed air enters the plate valve of pneumatic actuator Cylinder gas chamber pushes pneumatic operated valve valve film, and valve rod band movable valve plug is then pushed to open or close.

The static separation device includes：Door gear is folded to, be folded to a connecting rod and is folded to hinge pin for door；Door gear is folded to lead to Cross be folded to hinge pin for door be connected to separator body head cover and inner cone drum body between and can rotate around the axis, be folded to the top of hinge pin for door It is connected with being folded to a connecting rod, and passes through to be folded to a connecting rod and be connected to and be folded in a regulating device.

The separator body device includes：Separator body, side plate, wear-resisting upper liner plate, wear-resisting lower liner plate and liner plate branch Bolster；Liner plate and wear-resisting lower liner plate on wear-resisting are connected on the inside of liner plate bearing support, and forms guiding lining board device；It is detaching Body inside lower end is equipped with the lining board device bearing support for being oriented to lining board device.

The reduction box includes：It is bevel gear shaft, bevel gear, ring gear, transmission shaft, sun gear, planetary gear and planet carrier, defeated Go out flange；Input terminal is the bevel gear shaft of spiral bevel gear pair, and completing the first order by spiral bevel gear pair slows down；Transmission shaft and spiral shell The bevel gear of rotation bevel gear pair is connected by key, and positioned at the center of bevel gear, passes through the connection internal tooth being connected with transmission shaft Circle and sun gear drive planetary gear train rotation, complete the second level and slow down, planetary gear train is located at the top of bevel gear pair；Finally by position The output flange being connected above planetary gear train with planet carrier realizes output.

The side body set includes：Side body First air entrance, side body, wear-resistant liner, sealing gland ring, heat insulation layer lid Plate and heat-insulating material；Heat insulation layer cover board is located above the organism soleplate of side, is made of 8 pieces of fanning strips, heat insulation layer cover board and side body Filling heat insulator between bottom plate；There is pebble coal row on the heat insulation layer cover board of side body First air inlet side and side organism soleplate Outlet, and drawn by pipe flange；Wear-resistant liner is located on the inside of the body of side above heat insulation layer cover board, outside wear-resistant liner and side body Filling heat insulator between shell；Sealing gland ring is mounted on the inside of the organism soleplate of side, between side body and mill, passes through gap sealing gland reality Existing inside and outside isolation.

The separator cover device includes：Separator head cover, inner cone drum body and inner cone；The upper end of inner cone drum body is consolidated The inside top of separator body head cover is scheduled on, lower end is used to connect inner cone；Lead between separator body head cover and inner cone drum body The hinge pin for door that is folded to for crossing static separation device is connect with being folded to door gear, is folded to door gear in separator body head cover and inner cone drum body Between by being folded to hinge pin for door pivoting；It is fixed in separator body head cover upper outside and is folded to a regulating device；Dividing From being equipped with multiple exit device on device head cover.

Advantageous effect, as a result of said program, the utility model abrasive disk type middling speed pulverized coal preparation equipment is to corresponding Design is optimized in powder critical component processed, including optimizing rolling element（Burnisher apparatus, millstone device）Planform, use Rubber-tyred grinding roller, lining board for grinding discs structure, fully increase the component rolls area, to extend the service life of rolling element and right The adaptability of each coal coal particularly inferior；Increase impeller spray ring device deflector, easily occur at impeller spray ring to improve Turbulent flow, cause at pulverized coal preparation equipment mill up and down pressure difference it is larger and the problems such as pebble coal amount is more；Spring load-variable device It is combined with the structure of rubber-tyred grinding roller, lining board for grinding discs, it is made to improve 7% than the flour extraction of any corrective measure is used alone Powder extracting rate processed is improved in left and right, meets the requirement that generating equipment coal dust output changes with boiler load, makes powder manufacturing apparatus that can maintain In oepration at full load, the output of middling speed pulverized coal preparation system is improved to greatest extent, reduces powder consumption rate processed.

Advantage：The utility model is simple in structure, reliable, easy to maintenance, unit power consumption is small, galling is few, coal It is adaptable, service life is long, flour extraction is improved, is widely used, fineness of pulverized coal uniformity is good and can make linear regulation.

Description of the drawings

Fig. 1 is the utility model abrasive disk type middling speed pulverized coal preparation equipment structure chart.

Fig. 2 is the millstone device structure chart of the utility model.

Fig. 3 is the impeller spray ring structure drawing of device of the utility model.

Fig. 4 is the A-A visual direction structure charts of Fig. 3.

Fig. 5 is the control system architecture figure of the discharging valve device of the utility model.

The static separation device structure chart of Fig. 6 the utility model.

Fig. 7 is the overlooking structure figure of Fig. 6.

Fig. 8 is the separator body structure drawing of device of the utility model.

Fig. 9 is the gearbox structure figure of the utility model.

Figure 10 is the side body set structure chart of the utility model.

Figure 11 is the separator cover device structure chart of the utility model.

In figure, 1, coal spout；2nd, discharging valve device；3rd, static separation device；4th, inner cone；5th, separator body device；6th, leaf Take turns spray ring device；7th, screeding device；8th, pebble coal outlet；9th, reduction box；10th, seal gas collector；11st, millstone device；12、 Side body set；13rd, it is oriented to lining board device；14th, rubber-tyred grinding roller；15th, Burnisher apparatus；16th, spring load-variable device；17th, divide From device cover device；18th, it is folded to a regulating device；19th, multiple exit device；20th, grinding roller seat；21st, wearable overlay；22nd, mill Liner plate；23rd, mill clamping ring；24th, mill；25th, mill extended loop；26th, heavy-duty bearing；26th, deflector；27th, trunnion pivot； 28th, shaft of grinding roller；29th, grinding roller head；30th, water conservancy diversion liner plate；31st, it is folded to door gear；32nd, it is folded to a connecting rod；33rd, it is folded to hinge pin for door； 34th, separator body；35th, side plate；36th, wear-resisting upper liner plate；37th, wear-resisting lower liner plate；38th, liner plate bearing support；39th, impeller is fan-shaped Body；40th, air throttle ring；41st, bevel gear shaft；42nd, bevel gear；43rd, ring gear；44th, transmission shaft；45th, sun gear；46th, planetary gear And planet carrier；47th, output flange；48th, side body First air entrance；49th, side body；50th, wear-resistant liner；51st, sealing gland ring；52、 Heat insulation layer cover board；53rd, heat-insulating material；54th, separator body head cover；55th, inner cone drum body；56th, inner cone；57th, roller core；58th, it is adjustable Cover；59th, arc outer vertical plate；5-1, plate valve cylinder；5-2, three-position four-way valve；5-3, pneumatic triple piece；5-4, muffler；5-5, gas Source.

Specific embodiment

Embodiment 1：The middling speed pulverized coal preparation equipment of the utility model includes：Coal spout 1, discharging valve device 2, static separation Device 3, inner cone 4, separator body device 5, impeller spray ring device 6, screeding device 7, pebble coal outlet 8, reduction box 9, sealing Air header 10, side body set 12, is oriented to lining board device 13, rubber-tyred grinding roller 14, Burnisher apparatus 15, bullet at millstone device 11 Spring load-variable device 16, separator cover device 17 are folded to a regulating device 18, multiple exit device 19；In separator body device 5 Upper end be connected with separator cover device 17, static separation device 3 is connected to separator by static separation device regulating device 18 On cover device 17, inner cone 4 is connected to the lower end of static separation device 3, is linked in sequence in the upper end of separator cover device 17 There are multiple exit device 19 and discharging valve device 2；There is coal spout 1 to be penetrated from static separation device 3 to inner cone 4；In separator body The bottom of device 5 is connected with side body set 12, and being linked in sequence in separator body device 5 and 12 junction of side body set has leaf Wheel spray ring device 6 and millstone device 11, impeller spray ring device 6 are rotated with millstone device 11；In the top of millstone device 11 Have and be oriented to lining board device 13 and Burnisher apparatus 15, be oriented to lining board device 13 and Burnisher apparatus 15 is located in separator body device 5；It leads To lining board device 13 between Burnisher apparatus 15 two-by-two, the top of impeller spray ring device 6；The top of Burnisher apparatus 15 and spring Load-variable device 16 is connected, and spring load-variable device 16 is mounted on separator body device 5；It is connected in 15 end of Burnisher apparatus There is rubber-tyred grinding roller 14；Screeding device 7, which is connected on millstone device, is placed in bottom in side body set 12, screeding device 7 with Millstone device 11 rotates together, and in side, pebble coal outlet 8 is arranged at 12 bottom of body set, and in side, 12 bottom of body set is connected with Reduction box 9,9 upper end of reduction box are connect with millstone device 11, there is seal gas collector 10 outside side body set 12；It is sprayed in impeller Deflector 30 is connected between the impeller segment of loop device 6 and air throttle ring.

In Fig. 2, the millstone device 11 includes：Lining board for grinding discs 22, mill clamping ring 23, mill 24 and mill extended loop 25；Lining board for grinding discs 22 is laid in by mill extended loop 25 and the fixation of mill clamping ring 23 on mill 24, and lining board for grinding discs 22 is laid in On mill frustum inclined-plane, mill extended loop 25 and mill clamping ring 23 are bolted outer eaves and interior eaves in mill 24 respectively.

Run of mine coal seam is rolled into coal dust between lining board for grinding discs 22 and rubber-tyred grinding roller 14, rotates and generates in millstone device 11 Centrifugal force effect lower edge be moved outwards, cross mill extended loop 25 enter coal dust transfer passage.

In Fig. 2, the Burnisher apparatus 15 includes：Rubber-tyred grinding roller 14, grinding roller seat 20, heavy-duty bearing 26, trunnion pivot 27th, shaft of grinding roller 28 and grinding roller head 29；Shaft of grinding roller 28 is bolted on grinding roller head 29, positioned at 29 side of grinding roller head；Pass through 2 Grinding roller seat 20 is mounted on shaft of grinding roller 28 by heavy-duty bearing 26；Rubber-tyred grinding roller 14 is by key and is bolted directly to grinding roller seat On 20；Grinding roller head 29 is mounted on separator body device 5, and can be fulcrum with trunnion pivot 27 by 2 trunnion pivots 27 Overturn Burnisher apparatus 15.Without being in direct contact between rubber-tyred grinding roller 14 and mill 24, rubber-tyred grinding roller 14 by with mill 24 it Between run of mine coal seam rotated with the rotation of mill 24 and run of mine coal seam rolled.

The rubber-tyred grinding roller 14 includes：Roller core 57 and wearable overlay 21；Wear-resisting heap is welded in 57 outside heap of roller core Layer 21, the wearable overlay 21 are antifriction alloy.Overlay cladding can be repeated several times Bead weld repair rubber-tyred grinding roller 14 and mill Disk liner plate 22 makes the service life for rolling area bigger, substantially increasing grinding roller, mill of rubber-tyred grinding roller 14, mill 24, and And it can adapt to more fine coal kind processed.

In Fig. 3, Fig. 4, the impeller spray ring device 6 includes：Impeller spray ring segment and air throttle ring 40；Air section Stream ring 40 is laid on the blade of impeller spray ring segment and fixed thereto；The impeller spray ring segment includes：Impeller fan Body 39, water conservancy diversion liner plate 30, adjustable cover 58 and arc outer vertical plate 59；The upper and lower ends of water conservancy diversion liner plate 30 are respectively welded at air section On the inner ring and arc outer vertical plate 59 for flowing ring 40, arc outer vertical plate 59 is connect with impeller segment 39, and adjustable cover 58 passes through bolt It is connect with impeller segment 39, has arc outer vertical plate 59 between adjustable cover 58 and impeller segment 39；Adjustable cover 58 can be upper and lower It is mobile to adjust height, for adjusting the gap between impeller segment 39 and separator body device 5 during installation, make the overwhelming majority First air passes through through impeller unit, ensures drying and conveying capacity of the First air to coal dust.

Change impeller spray ring discharge area by increasing and decreasing air throttle ring, adjust coal dust pumped (conveying) medium（First air）In mill bowl The flow velocity at 11 edge of device；Water conservancy diversion liner plate 30 plays the turbulent flow for improving and easily occurring at impeller spray ring device 6, and pulverized coal preparation is caused to set Pressure difference is larger and the problem of pebble coal amount is more up and down at standby mill.

In Fig. 5, the discharging valve device 2 includes：Plate valve cylinder 5-1, three-position four-way valve 5-2, pneumatic triple piece 5-3, Muffler 5-4 and control system；The control system uses pneumatic actuator；Compressed gas source 5-5 is by pipeline and pneumatically Three linked piece 5-3 is connected, and external air source 5-5 is transmitted by pipeline, two ports of three-position four-way valve side respectively with pneumatically Three linked piece is connected with muffler, is connect in port of two ports of opposite side respectively with plate valve cylinder both ends；Three-position four-way valve Pneumatic actuator is controlled to realize the on or off of plate valve cylinder；Signal is controlled to be powered to three-position four-way valve, three-position four-way valve is opened, The plate valve cylinder gas chamber that compressed air enters pneumatic actuator pushes pneumatic operated valve valve film, and valve rod band movable valve plug is then pushed to open Or it closes.

In Fig. 6 and Fig. 7, the static separation device 3 includes：Door gear 31 is folded to, be folded to a connecting rod 32 and is folded to door hinge Chain rivet 33；It is folded to door gear 31 and is connected to separator body head cover 54 and inner cone by being folded to hinge pin for door 33 and rouse between body 55 and can Pivoting, the top for being folded to hinge pin for door 33 are connected with being folded to a connecting rod 32, and pass through to be folded to a connecting rod 32 and be connected to and be folded to In door regulating device 18.An aperture is folded to by being folded to the change of a regulating device 18, reaches the adjusting control to coal dust separation fineness System.

In Fig. 8, the separator body device 5 includes：Separator body 34, side plate 35, wear-resisting upper liner plate 36, it is wear-resisting under Liner plate 37 and liner plate bearing support 38；Liner plate 36 and wear-resisting lower liner plate 37 on wear-resisting are connected in the inside of liner plate bearing support 38, and It forms and is oriented to lining board device 13；The liner plate bearing support 38 for being oriented to lining board device 13 is installed in 34 inside lower end of separator body；On The coal dust risen is being oriented to completion level-one separation at lining board device 13.

In Fig. 9, the reduction box 9 includes：Bevel gear shaft 41, bevel gear 42, ring gear 43, transmission shaft 44, sun gear 45, Planetary gear and planet carrier 46, output flange 47；Input terminal is the bevel gear shaft 41 of spiral bevel gear pair, complete by spiral bevel gear pair Slow down into the first order；Transmission shaft 44 is connected with the bevel gear 42 of spiral bevel gear pair by key, and in bevel gear 42 Centre drives planetary gear train to rotate, completes the second level and slow down by the connection ring gear 43 and sun gear 45 that are connected with transmission shaft 44, Planetary gear train is located at the top of bevel gear pair；Finally by being located at the output flange 47 being connected above planetary gear train with planet carrier 46 Realize output.It is directly driven with appropriate reduction ratio, and by motor.

In Figure 10, the side body set 12 includes：Side body First air entrance 48, side body 49, wear-resistant liner 50, Sealing gland ring 51, heat insulation layer cover board 52 and heat-insulating material 53；Heat insulation layer cover board 52 is located above 49 bottom plate of side body, by 8 pieces of sectors Plate forms, filling heat insulator 53 between 49 bottom plate of heat insulation layer cover board 52 and side body；48 side of side body First air entrance There is pebble coal outlet 8, and drawn by pipe flange on 49 bottom plate of heat insulation layer cover board 52 and side body；Wear-resistant liner 50 is located at side Above 49 inside heat insulation layer cover board of body 52, filling heat insulator 53 between 49 shell of wear-resistant liner 50 and side body；Sealing gland ring 51 are mounted on the inside of 49 bottom plate of side body, and between side body 49 and mill 24, inside and outside completely cut off is realized by gap sealing gland.

In Figure 11, the separator cover device 17 includes：Separator head cover 54, inner cone drum body 55 and inner cone 56； The upper end of inner cone drum body 55 is fixed on the inside top of separator body head cover 54, and lower end is used to connect inner cone 56；In separator It is connect, rolled over being folded to door gear 31 by the hinge pin for door 33 that is folded to of static separation device 3 between body head cover 54 and inner cone drum body 55 To door gear 31 separator body head cover 54 and inner cone drum body 55 between by being folded to 33 pivoting of hinge pin for door；In separator 54 upper outside of body head cover, which is fixed with, is folded to a regulating device 18；Multiple exit device 19 is installed on separator head cover 54.

In Fig. 1, Fig. 2, Fig. 3, Fig. 4, when the utility model abrasive disk type middling speed pulverized coal preparation equipment works, when raw coal is by falling It after coal pipe 1 is fallen on millstone device 11, is moved radially outward under the action of mill rotary centrifugal force, on millstone device 11 Coal bed is formed, coal bed passes through under the rubber-tyred grinding roller 14 that can rotate around the axis.As a result of 14/ lining board for grinding discs of rubber-tyred grinding roller 22 structures, make grinding roller and grinding disk rolls area bigger, substantially increases the service life of grinding roller and grinding disk, and can adapt to more Fine coal kind processed.What spring load-variable device 16 generated, which roll loading force, passes through the rubber-tyred grinding roller 14 that is rotated on Burnisher apparatus 15 It is applied on coal seam, raw coal is milled into powder between Burnisher apparatus 15 and millstone device 11, makees what is radially and tangentially moved Coal seam, which carries the coal dust being grinded up, crosses 11 edge of millstone device and enters pumped (conveying) medium hot-air channel, smaller lighter coal dust Particle transported medium hot-air is continuously blown afloat from 11 edge of millstone device.

Hot-air enters from side body set 12, is risen by impeller spray ring device 6 along 11 outer diameter of millstone device of rotation. Impeller spray ring blade on the outside of millstone device 11 makes thermal current tend to vertical direction to flow up, cross millstone device The smaller lighter coal grain of 11 outer rims is moved upwards by air-flow carrying, and impurity for being not easy to pulverize of weight etc. falls into side across air-flow 12 region of body set.It installs the impeller spray ring device 6 after water conservancy diversion liner plate 30 additional, substantially improves at impeller spray ring and turbulent flow easily occur The phenomenon that, pressure difference above and below at mill is made to tend towards stability, more thin buckwheat coals are delivered up, avoids more false pebble coals Generation.

Multistage is carried out in separator body device 5 and separator cover device 17 by the thin buckwheat coal that hot-air carries up Separation.The separator body that first order separation is happened at 11 top of millstone device is oriented at liner plate 13, and being oriented to liner plate makes most heavy coal The grain suddenly change direction of motion, loses kinetic energy and directly falls back to again wear-resisting on millstone device 11.Lighter coal grain is by air-flow It carries to the static separation device 3 of separator cover device 17 and is detached again, the static separation device adjustable vane being bent herein Make wind powder mixture generation cyclonic motion that weight particle be caused to lose kinetic energy to fall from air-flow.

The relatively rough coal grain separated rolls region, inner cone 4 along the inner wall of inner cone 4 back to millstone device 11 Weight particle coal dust is separated from the regions of turbulent flow of powder manufacturing apparatus, and the heavy particulate coal outside regions of turbulent flow is returned under the effect of gravity Return millstone device.Qualified coal dust sends out powder manufacturing apparatus with air-flow and is applied.

The sundries for being not easy to grind fallen into 12 region of side body set across air-flow is installed in scraping on mill hub skirt cover Panel assembly 7 is scraped in the tap on 12 bottom plate of side body set, is discharged into pebble coal outlet 8.

Claims (10)

1. a kind of abrasive disk type spring becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：Middling speed pulverized coal preparation equipment includes：Coal breakage Pipe, discharging valve device, static separation device, inner cone, separator body device, impeller spray ring device, screeding device, pebble coal discharge Mouth, reduction box, seal gas collector, millstone device, side body set, be oriented to lining board device, rubber-tyred grinding roller, Burnisher apparatus, Spring load-variable device, is folded to a regulating device and multiple exit device at separator cover device；In the upper end of separator body device Separator cover device is connected with, static separation device is connected to by static separation device regulating device on separator cover device, Inner cone is connected to the lower end of static separation device, and being linked in sequence in the upper end of separator cover device has multiple exit device and discharge Valve gear；There is coal spout to be penetrated from static separation device to inner cone；Side body dress is connected in the bottom of separator body device It puts, being linked in sequence in separator body device and side body set junction has impeller spray ring device and millstone device, impeller spray ring Device is rotated with millstone device；Have above millstone device and be oriented to lining board device and Burnisher apparatus, be oriented to lining board device It is located in separator body device with Burnisher apparatus；Be oriented to lining board device be located at two-by-two between Burnisher apparatus, impeller spray ring device Top；The top of Burnisher apparatus is connected with spring load-variable device, and spring load-variable device is mounted on separator body device； Rubber-tyred grinding roller is connected in Burnisher apparatus end；Screeding device, which is connected on millstone device, is placed in bottom in the body set of side Portion, screeding device are rotated with millstone device, have pebble coal outlet in side body set bottom, in side body set bottom Reduction box is connected with, reduction box upper end is connect with millstone device, there is seal gas collector outside the body set of side；In impeller spray ring Deflector is connected between the impeller segment of device and air throttle ring.

2. a kind of abrasive disk type spring according to claim 1 becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：It is described Millstone device include：Lining board for grinding discs, mill clamping ring, mill and mill extended loop；Lining board for grinding discs is by mill extended loop and mill The fixation of chuck clamping ring is laid on mill, and lining board for grinding discs is laid on mill frustum inclined-plane, mill extended loop and mill clamping ring It is bolted the outer eaves in mill and interior eaves respectively.

3. a kind of abrasive disk type spring according to claim 1 becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：It is described Burnisher apparatus include：Rubber-tyred grinding roller, grinding roller seat, heavy-duty bearing, trunnion pivot, shaft of grinding roller and grinding roller head；Shaft of grinding roller is by spiral shell Bolt is fixed on grinding roller head, positioned at the first side of grinding roller；Grinding roller seat is mounted on shaft of grinding roller by 2 heavy-duty bearings；Rubber-tyred Grinding roller is by key and is bolted directly on grinding roller seat；Grinding roller head is mounted on separator body device by 2 trunnion pivots On, and Burnisher apparatus can be overturn by fulcrum of trunnion pivot；

The rubber-tyred grinding roller includes：Roller core and wearable overlay；Heap is welded with wearable overlay on the outside of roller core, and described is resistance to Mill overlay cladding is antifriction alloy.

4. a kind of abrasive disk type spring according to claim 1 becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：It is described Impeller spray ring device include：Impeller spray ring segment and air throttle ring；Air throttle ring is laid in impeller spray ring segment Blade on and it is fixed thereto；The impeller spray ring segment includes：Impeller segment, water conservancy diversion liner plate, adjustable cover and arc Outer vertical plate；The upper and lower ends of water conservancy diversion liner plate are respectively welded on the inner ring and arc outer vertical plate of air throttle ring, arc outer vertical plate It is connect with impeller segment, adjustable cover is connect by bolt with impeller segment, has arc between adjustable cover and impeller segment Shape outer vertical plate.

5. a kind of abrasive disk type spring according to claim 1 becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：It is described Discharging valve device include：Plate valve cylinder, three-position four-way valve, pneumatic triple piece, muffler and control system；The control system System is using pneumatic actuator；Compressed gas source is connected by pipeline with pneumatic triple piece, and external air source is transmitted by pipeline, Two ports of three-position four-way valve side are connect respectively with pneumatic triple piece and muffler, two ports of opposite side respectively with The port connection at plate valve cylinder both ends；Three-position four-way valve control pneumatic actuator realizes the on or off of plate valve cylinder；Control letter Number give three-position four-way valve be powered, three-position four-way valve open, compressed air enter pneumatic actuator plate valve cylinder gas chamber push Then pneumatic operated valve valve film pushes valve rod band movable valve plug to open or close.

6. a kind of abrasive disk type spring according to claim 1 becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：It is described Static separation device include：Door gear is folded to, be folded to a connecting rod and is folded to hinge pin for door；Door gear is folded to by being folded to door hinge Axis connection is between separator body head cover and inner cone drum body and can rotate around the axis, be folded to the top of hinge pin for door and be folded to a connecting rod It is connected, and passes through to be folded to a connecting rod and be connected to and be folded in a regulating device.

7. a kind of abrasive disk type spring according to claim 1 becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：It is described Separator body device include：Separator body, side plate, wear-resisting upper liner plate, wear-resisting lower liner plate and liner plate bearing support；In liner plate branch Wear-resisting upper liner plate and wear-resisting lower liner plate are connected on the inside of bolster, and forms guiding lining board device；In separator body inside lower end The lining board device bearing support for being oriented to lining board device is installed.

8. a kind of abrasive disk type spring according to claim 1 becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：It is described Reduction box include：Bevel gear shaft, bevel gear, ring gear, transmission shaft, sun gear, planetary gear and planet carrier, output flange；Input The bevel gear shaft for spiral bevel gear pair is held, completing the first order by spiral bevel gear pair slows down；Transmission shaft and spiral bevel gear pair Bevel gear be connected by key, and positioned at bevel gear center, pass through the connection ring gear and sun gear being connected with transmission shaft Planetary gear train rotation is driven, the second level is completed and slows down, planetary gear train is located at the top of bevel gear pair；Finally by being located at planetary gear train The output flange that top is connected with planet carrier realizes output.

9. a kind of abrasive disk type spring according to claim 1 becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：It is described Side body set include：Side body First air entrance, side body, wear-resistant liner, sealing gland ring, heat insulation layer cover board and heat insulating material Material；Heat insulation layer cover board is located above the organism soleplate of side, is made of 8 pieces of fanning strips, is filled out between heat insulation layer cover board and side organism soleplate Fill heat-insulating material；There is pebble coal outlet on the heat insulation layer cover board of side body First air inlet side and side organism soleplate, and by Pipe flange is drawn；Wear-resistant liner is located on the inside of the body of side above heat insulation layer cover board, is filled out between wear-resistant liner and side body fuselage Fill heat-insulating material；Sealing gland ring is mounted on the inside of the organism soleplate of side, between side body and mill, by gap sealing gland realize it is inside and outside every Absolutely.

10. a kind of abrasive disk type spring according to claim 1 becomes loading middling speed pulverized coal preparation equipment, it is characterized in that：Institute The separator cover device stated includes：Separator head cover, inner cone drum body and inner cone；The upper end of inner cone drum body is fixed on separator The inside top of body head cover, lower end are used to connect inner cone；Pass through static separation between separator body head cover and inner cone drum body The hinge pin for door that is folded to of device is connect with being folded to door gear, is folded to door gear and is passed through folding between separator body head cover and inner cone drum body To hinge pin for door pivoting；It is fixed in separator body head cover upper outside and is folded to a regulating device；On separator head cover Multiple exit device is installed.