CN2396179Y - High-pressure spray duster for drum coal cutting machine - Google Patents
High-pressure spray duster for drum coal cutting machine Download PDFInfo
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- CN2396179Y CN2396179Y CN 99246738 CN99246738U CN2396179Y CN 2396179 Y CN2396179 Y CN 2396179Y CN 99246738 CN99246738 CN 99246738 CN 99246738 U CN99246738 U CN 99246738U CN 2396179 Y CN2396179 Y CN 2396179Y
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Abstract
The utility model relates to a high-pressure water spray duster for a drum coal-winning machine, which is used for the secondary dust removal of a stoping surface coal-winning machine and comprising dust removers, a high-pressure rubber pipe and a high-pressure water pump. A double-drum coal-winning machine is provided with two dust removers which are respectively arranged on both ends of a machine body, and a single-drum coal-winning machine is provided with only one dust collector. Each dust remover is composed of an outer shell, spraying pipes, nozzles, etc., and the upper half part of the front part of each outer shell is provided with an end plate and the lower half part is a dust-absorbing mouth, or the front part of each outer shell is provided with an end plate and a bottom plate is provided with the dust-absorbing mouth. 3-6 spraying pipes are arranged on each outer shell and penetrate through the end plates, and the nozzles are positioned on the inner back part of the spraying pipes and axial leads. High pressure water is led into the spraying pipes which spray mist and remove dust, and simultaneously, the spraying pipes generate negative pressure to suck the dust. The volume is small, the maintenance of the coal-winning machine is not influenced, and the dust removing effect is good.
Description
The utility model relates to stope working surface of coal mines flitting atomizing de-dusting technology, particularly a kind ofly is suitable for the flitting high pressure water fog dust cleaning device that comprehensive extracting and caving face is used.
China's Patent Gazette for Utility Models the 14th volume, No. 20, disclosing title is the patent of " flitting long tube type high pressure water fog dust cleaning device ", the patent No.: ZL 96232320, notice of authorization number: CN2282 070Y.Its purpose is on the basis of the original inside and outside atomizing de-dusting of flitting, carries out the secondary depositing dust, and the dust concentration in the coal-winning machine ambient air is further reduced; Its formation is that a long steel plate tube longitudinally is set on the machine side of flitting, in the long tube main jet spray painting is set and chews and assist nozzle, and nozzle is introduced water under high pressure by pipeline, utilize the effect of nozzle water spray, make long tube one end produce negative pressure, produce the dust suction effect, reach the depositing dust purpose.Its weak point is: 1. long tube is installed on and is an impediment to the coal-winning machine maintenance on the coal-winning machine machine side; 2. long each internode point of attachment of tube is squeezed and when colliding, yielding gas leakage; 3. the coal-winning machine machine height increases, and when mining height reduces, influences the upset of support face guard; 4. because long tube length degree is big, and the air draught resistance is big, water requirement is big, the hydraulic pressure height.
Purpose of design of the present utility model is to overcome the weak point in the prior art, and provide a kind of volume little, do not hinder coal-winning machine maintenance and operation, introduce the high-pressure water jet water mist dust fall, utilize the water spray to produce the flitting high pressure water fog dust cleaning device of negative pressure dust suction simultaneously by nozzle.
Purpose of design of the present utility model can reach by following measure:
In the flitting high pressure water fog dust cleaning device of forming by nozzle, high-pressure rubber pipe and high-pressure hydraulic pump, be provided with deduster.When coal-winning machine was twin-roll, this device had two dedusters, was loaded on the two ends of flitting fuselage respectively; When coal-winning machine was single cylinder, this device was established a deduster, was loaded on the end that the coal-winning machine fuselage has cylinder.Deduster is made of shell, jet pipe and nozzle etc.The back of shell is the portion that is fixedly connected that connects with coal-winning machine.The front portion of shell is the inclined open shape, and its incline direction recedes from top to bottom, and the first half of opening has end plate to intercept, and the Lower Half of opening is opened wide forward, as suction port; Perhaps, the upper and lower half of shell front portion all has end plate to intercept, and has horizontal slotted hole on the base plate of shell, as suction port.Be fixed with 3～6 jet pipes in the enclosure, each jet pipe passes from end plate, and by the upper cover plate of shell and the gripper shoe between the base plate separately.A nozzle is arranged in each jet pipe, and nozzle is positioned on the rear portion, axial line of jet pipe, and the inside diameter D of jet pipe, nozzle should meet following relation to the distance L of nozzle exit, the angle of flare θ of nozzle spray: D≤2Ltg θ/2.The direction of axis line of each jet pipe with different angle towards shell the place ahead, and oblique coal mining machine roller end face rear side.High-pressure hydraulic pump can be located in the gallery, also can be airborne pump.
Purpose of design of the present utility model can also reach by following measure:
The direction of axis line of 3～6 jet pipes in its shell, inclination angle in vertical direction can be selected in-40 °～50 ° scope.The fog jet that each jet pipe sprays, in the end face outside of coal mining machine roller, formation fog jet-core region line subtended angle is 30 °～80 ° a vertical fan-shaped mist barrier, the vortex that blocks the cylinder end face outside is distinguished and admirable, and the point of contact of cylinder and top board is exposed.In the horizontal direction, each jet pipe can be selected in 0 °～40 ° scope to the oblique angle that the rib direction tilts, and the center line of the fog jet that each jet pipe sprays intersects in the place ahead of coal-winning machine front roll or the 1～3m place, rear and the rib of back roll.
Jet pipe in its shell is four, the axial line of four jet pipes inclination angle in vertical direction is 30 °, 15 °, 0 ° ,-10 °, the axial line of four jet pipes is respectively 5 °, 10 °, 15 °, 20 ° to the oblique angle of rib in the horizontal direction, above angles shifts scope is ± 10 °, the ordering successively from rib to adopting the sky side.
Nozzle in its jet pipe is loaded on the nozzle carrier through the quick high-pressure joint, and nozzle carrier is through taking over or directly being connected with water main in the shell.Water main's plug end inserts in the locating hole of shell by the side plate of rib one side in the shell, and water main's the other end has a disk in the shell, and disk is flush-mounted in shell by being connected and fixed on this side plate in the big locating hole of adopting sky side side plate and by thread connector.In the shell water main's water inlet end be provided with snap joint seat and high-pressure rubber pipe with snap joint be connected.In the enclosure, the water main can join with the nozzle on it, nozzle carrier and adapter in the shell, installs and removes by big locating hole by space, the integral body at gripper shoe rear.
Its high-pressure hydraulic pump is airborne high-pressure pump.The output shaft of coal-winning machine motor is through the power shaft driving coupling of clutch/shaft coupling and gearbox and airborne high-pressure pump.The spill valve that also comprises pump, hydraulic control valve group with this pump auxiliary work.Except that hydraulic control valve is assembled in intermediate box, operation driver one side, remainder is loaded in the intermediate box.The delivery port of airborne high-pressure pump is connected with the nozzle of deduster through outlet pipe, threeway seat, high-pressure rubber pipe.
Compared with the prior art the utility model has following advantage:
1. change be sub-packed in coal-winning machine fuselage two ends two independently dedusters into by long tube type, promptly split type, volume is little, and it is few to take up space, and does not hinder flitting maintenance and operation.
2. the vertical fan-shaped distribution fog jet that spray to form of deduster can block the vortex of coal mining machine roller is distinguished and admirable, simultaneously, will be purified in the distinguished and admirable inspiration device of vortex, and reasonable in design, dust-laying effect is good.
3. required hydraulic pressure is low, and water consumption reduces about 25%, under various condition same cases, improves dust-laying effect more than 10% than long tube type.
4. simple in structure, making, carrying, dismounting etc. are all very convenient.
The drawing of accompanying drawing is described as follows:
Fig. 1: the utility model is at flitting general assembly schematic diagram front view
Fig. 2: the utility model is at flitting general assembly schematic diagram vertical view
Fig. 3: the structural representation front view of deduster
Fig. 4: the structural representation lateral view of deduster
Fig. 5: the structural representation vertical view of deduster
Fig. 6: the spatial distribution map elevation of fog jet during the utility model work
Fig. 7: the spatial distribution map vertical view of fog jet during the utility model work
Fig. 8: base plate is opened the front view of the deduster of suction port
Fig. 9: base plate is opened the upward view of the deduster of suction port
Figure 10: the assembling schematic diagram vertical view cutaway drawing of airborne high-pressure pump in flitting
Figure 11: the assembling schematic diagram master of airborne high-pressure pump in flitting looks sectional view
Figure 12: the hydraulic scheme of airborne high-pressure pump
Figure 13: hydraulic control valve group structural representation
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Embodiment 1: double-ended shearer usefulness, the anterior suction port of shell, four dust nozzles.
Fig. 1,2: show installation situation and the composition of the utility model on double-ended shearer.This installs by left deduster 1, right deduster 2, left fixed mount 3, right fixed mount 4, and threeway seat 5, high-pressure rubber pipe 6, and the high-pressure hydraulic pump that is located in the gallery constitutes.Deduster 1,2 is installed on the two ends of flitting fuselage respectively by fixed mount 3,4.Two dedusters respectively are a cylinder atomizing de-dusting, and the two is supplied water by same pipe-line system.Illustrated fixed mount 3,4 is applicable to the coal-winning machine that installs and fixes deduster from the fuselage end face; For the coal-winning machine that is fit to install and fix deduster from the fuselage side, can be without fixed mount.High-pressure rubber pipe 6 is packed into and is dragged in the cable clamp, is dragged by coal-winning machine with cable.
Fig. 3～5: the structure that shows the utility model deduster 1,2.Each deduster comprises shell, jet pipe 15, nozzle 25 etc.Shell is a special shape housing that is made of upper cover plate 8, base plate 13, side plate 14 and 19, backboard 11 and end plate 7 etc.The back of shell constitutes the portion that is connected and fixed 12 of channel steel shape by side plate 14, side plate 19 and gusset 23, and this one 12 is fixed on the fixed mount 3 or 4 on the coal-winning machine.The front portion of shell is the inclined open shape, and the incline direction of opening recedes from top to bottom, and the first half of opening has end plate 7 to intercept, and the Lower Half of opening is opened wide forward, as suction port.Between the upper cover plate 8 of shell and the base plate 13 gripper shoe 24 is arranged.
Be fixed with four jet pipes 15 in the enclosure, each jet pipe 15 passes from end plate 7, and by gripper shoe 24 separately, is fixed on the case body by gusset 18.A nozzle 25 is arranged in each jet pipe 15, and nozzle 25 is positioned on the rear portion, axial line of jet pipe 15.
Nozzle 25 in four jet pipes 15 is installed on the nozzle carrier 22 by snap joint, and nozzle carrier 22 is through taking over 16 or directly be connected with water main 21 in the shell, and 26 is its snap joint pin.Water main 21 plug end inserts in the locating hole of shell by the side plate 14 of rib one side in the shell, water main 21 the other end has a disk 9 in the shell, and it is interior and be connected and fixed on side plate 19 by screw 10 by the big locating hole of the side plate 19 of adopting the sky side that disk 9 is flush-mounted in shell.Water main 21 water inlet end is connected with shell extension tube attached 30 and becomes 90 ° of bent angles in the shell.Taking over 30 end has snap joint seat 29, snap joint seat 29 and high-pressure rubber pipe 27 with snap joint be connected, and be inserted with snap joint pin 28.In the enclosure, water main 21 can and take over 16 together with the nozzle on it 25, nozzle carrier 22 in the shell, the space by gripper shoe 24 rears, wholely packs into or dismantles by big locating hole.All the other are: be positioned at the upper cover plate elongated portion both sides, be used to support the upper cover plate gusset 17 of this elongated portion, the fixing gusset 18 used of jet pipe, the pad 20 between disk 9 and the side plate 19.
The inside diameter D of jet pipe, nozzle should meet following relation to the distance L of nozzle exit, the angle of flare θ of nozzle spray: D≤2Ltg θ/2 when promptly the diffusion diameter of nozzle ejection water smoke is more than or equal to the internal diameter of jet pipe, forms the water smoke piston in the jet pipe.For example: the angle of flare θ of nozzle spray is by 30 °, and when the jet pipe inside diameter D was 80mm or 100mm, nozzle to nozzle exit distance L can adopt 150mm～300mm.
The axial line of jet pipe 15 with different angle towards shell the place ahead, and the oblique coal mining machine roller end face outside.The axial line of four jet pipes, inclination angle in vertical direction, can in-40 °～50 ° scopes, select, so that in the coal mining machine roller end face outside, forming fog jet-core region line subtended angle is the mist barrier of 30 °～80 ° vertical fan-shaped distribution, add the angle of flare γ of jet, the subtended angle of mist barrier increases by 22 ° again.In the horizontal direction, each jet pipe 15 can be selected in 0 °～40 ° scopes to the oblique angle that the rib direction tilts, so that make each jet pipe 15 spray the center line of fog jet, intersects at 1～3m place, the rear of coal-winning machine front roll the place ahead or back roll and rib.As an example, the angle of the axial line of four jet pipes, inclination angle in vertical direction can be adopted respectively: 30 °, 15 °, 0 ° ,-10 °; Can adopt respectively to the oblique angle of rib in the horizontal direction: 5 °, 10 °, 15 °, 20 °.Above angles shifts scope is ± 10 °, the ordering successively from rib to adopting the sky side.This example can form the mist barrier that fog jet-core region line subtended angle is 40 ° ± 10 ° vertical fan-shaped distribution.
Fig. 6,7: the spatial distribution of fog jet when showing the utility model work.Four dust nozzles 2 with above-mentioned angle are example.The fog jet that each jet pipe sprays is in the coal mining machine roller 32 end faces outside, the subtended angle that forms fog jet-core region line 33 is the mist barrier of vertical fan-shaped distribution about 40 °, add the angle of flare γ of each 11 ° of jet self of upside and downside, total subtended angle of the boundary line 35 of fog jet can reach 62 °, substantially can be with distinguished and admirable the sealing of vortex in the cylinder end face outside, and the point of contact that makes cylinder and top board exposes, do not keep off sight line, so that the driver regulates the height of cylinder.When preventing against the wind coal cutting after the water smoke stall by on one's body the distinguished and admirable driver of blowing to of work plane, each jet pipe is all to rib direction lateral deviation, make fog jet-core region line 33 in coal-winning machine front roll the place ahead or 1～3m place, back roll rear and rib crossing.31 is the coal-winning machine fuselage, and 34 is the cable channel altitude line.
In these three embodiment, the jet pipe number in the shell adopts three, five and six respectively.The axial line of each jet pipe, inclination angle in vertical direction can be selected-40 °～50 ° scopes; To the oblique angle that rib tilts, can select in the horizontal direction 0 °～40 ° scopes.Selection principle is: diameter of cylinder is big, rocking arm length is big, the coal-winning machine height is big, when coal dust concentration is big, need use jet pipe more, simultaneously, vertical dip angle and horizontal oblique angle, it is big that range of choice is wanted; Otherwise, can use jet pipe less, simultaneously, vertical dip angle and horizontal oblique angle, the selection number of degrees can be smaller.For example:
The jet pipe number is three: vertical dip angle :-15 °, 0 °, 20 °;
Horizontal oblique angle: 10 °, 20 °, 30 °.
The jet pipe number is five: vertical dip angle :-40 ° ,-5 °, 10 °, 30 °, and 40 °;
Horizontal oblique angle: 10 °, 15 °, 20 °, 25 °, 40 °.
The jet pipe number is six: vertical dip angle :-30 ° ,-10 °, 0 °, 15 °, 30 °, and 50 °;
Horizontal oblique angle: 0 °, 15 °, 20 °, 25 °, 30 °, 35 °.
The angle of above jet pipe, ordering successively from rib to adopting the sky side, form fog jet-core region line subtended angle respectively and be 35 °, 80 °, 80 ° vertical fan-shaped mist barrier.Adopt the jet pipe of different numbers, different angles, can form the different vertical fan-shaped mist barrier of fog jet-core region line subtended angle.
Embodiment 5:
Fig. 8,9: the another kind of form that shows the deduster shell.That the shell front portion still is is oblique, recede from top to bottom, but the anterior first half and Lower Half all have end plate to intercept, and the end plate of the first half is 7, and the end plate of Lower Half is 36.Each jet pipe 15 still passes from end plate 7, and by gripper shoe 24 at interval, and have horizontal slotted hole 38 on the shell bottom plate 37, as suction port.
Its case back constitutes the portion that is connected and fixed of angle steel shape by side plate 14,19 and gusset 39, and this portion of being connected and fixed is fit to from the fixing deduster 1,2 of coal-winning machine fuselage side faces at both ends, and without fixed mount 3,4.
Embodiment 6:
Coal-winning machine is single cylinder, only establishes a deduster, is loaded on the end that the coal-winning machine fuselage has cylinder.The jet pipe number can be selected fewly, and the number of degrees at vertical dip angle and horizontal oblique angle can be selected smaller.
Embodiment 7: high-pressure hydraulic pump adopts airborne high-pressure pump.
It is example that present embodiment adopts AM500 type double-ended shearer, airborne high-pressure pump 48 to adopt the product TQB80/12.5 of Wuxi coal machine factory type horizontal triplex plunger pump, clarified water pump with coal-winning machine.This pump has special-purpose clutch/shaft coupling 43 and gearbox 45.
Figure 10: show airborne high-pressure pump 48 and matching component thereof rigging position, the The Nomenclature Composition and Structure of Complexes in coal-winning machine.The matching component of airborne high-pressure pump 48 mainly comprises: clutch/shaft coupling 43, gearbox 45, spill valve 46 and hydraulic control valve group 49 etc.
Airborne high-pressure pump 48 is driven by the left motor 40 of coal-winning machine.Left side motor 40 is double output shaft motors, and the right output shaft 50 of left motor 40 is through clutch/shaft coupling 43, gearbox 45, with the power shaft driving coupling of airborne high-pressure pump 48.The clutch of power can be controlled and drive to clutch/shaft coupling 43, simultaneously to 48 overload protective functions of pump for the clutch and the shaft coupling of band shear pin.Airborne high-pressure pump 48, clutch/shaft coupling 43 and gearbox 45 are contained in the intermediate box of newly establishing 47.
The parts of airborne high-pressure pump hydraulic protecting system comprise the spill valve 46 in the intermediate box 47, and intermediate box 47 is outer pressure switch 41, inlet gage 42, and the discharge pressure table 56 on the hydraulic control valve group 49, safety valve 59 etc.Airborne high-pressure pump hydraulic protecting system sees Figure 12 for details.
Hydraulic control valve group 49 is loaded on intermediate box 47 external, coal-winning machine driver one sides, and its structure sees Figure 13 for details.The water under high pressure O of airborne high-pressure pump 48 outputs
wThrough high-pressure hose 27, be connected to the nozzle 25 that is installed in left and right deduster 1 and 2, spray for dust suppression.The water inlet current I of airborne high-pressure pump 48
wSupply water from crossheading low pressure.Water inlet current I
wHydraulic pressure by inlet gage 42 show, pressure switch 41 control protections.
The cooling water of airborne high-pressure pump 48 draws the cooling water of discharging from the coal-winning machine motor, with I
cThe flow direction enters the cooling tube of pump 48 crankcases, with O
cFlow to and discharge, and by stop valve 44 control start-stops.
Figure 11: further show airborne high-pressure pump 48 and matching component thereof the structure in intermediate box 47, on the vertical direction and connect.Airborne high-pressure pump 48 and clutch/shaft coupling 43 thereof, gearbox 45, spill valve 46 etc., all be connected on the upper saddle 54, on lower slider 55 is fixed at the bottom of the intermediate box 47 casees, upper saddle 54 and lower slider 55, be inlaid in together and be slidingly matched, so that I﹠ M.
The delivery port 51 of airborne high-pressure pump connects high-pressure hose 6, and is connected to the nozzle 25 of deduster by high-pressure hose 6; The water inlet 53 of airborne high-pressure pump is what to fetch from the low pressure water supply hose of crossheading.52 is right motor.
Figure 12: the composition and the flow process that show the hydraulic system of airborne high-pressure pump 48.
The water inlet current I of 1. airborne high-pressure pump 48
wThrough of the water inlet input of low pressure water supply sebific duct 61, after boosting, pump 48 is divided into three the tunnel: first via High-Pressure Water O by pump
wThrough high-pressure rubber pipe 6 outputs, use for the nozzle spray dedusting; The second tunnel overflow valve 46 through the band throttle orifice flows back to total water inlet input, is used for the Adjustment System flow with steady pressure; Third Road access valve 58, pressure meter 56, safety valve 59, the three is respectively applied for the unloading emptying, observes output pressure, the protection system pressure nonoverload of pump.Draw a control liquid pipeline from the control far away mouthful K of overflow valve 46 and link to each other, the adjusting of system pressure can be realized by adjustment pilot valve 57 with pilot valve 57 control mouthful K ' far away.
2. at the water inlet I of pump 48
wInput is also drawn one the tunnel and is connect pressure meter 42 and pressure switch 41, and the two is respectively applied for the observation intake pressure, and coal-winning machine could be started shooting under the regulation intake pressure.During the hydraulic pressure that shows when inlet gage 42≤1MPa, the contact of pressure switch 41 will be in normally open, the fail to start of coal-winning machine motor, and airborne high-pressure pump 48 can not be worked.
3. the cooling water of pump 48 water inlet current I
cDraw the cooling water of discharging,, behind the cooling tube of inflow pump 48 crankcases, discharge current O through cooling water sebific duct 60 from the coal-winning machine motor
cOutside cooling water sebific duct 60 outflow machines.The start-stop of stop valve 44 control cooling waters.
4. the control far away of the control pilot valve 57 far away of overflow valve 46 mouthful K ' is connected by the road with the control mouth K far away of overflow valve 46 and controls overflow valve 46.
Figure 13: the structure that shows hydraulic control valve group 49.Hydraulic control valve group 49 is that the control pilot valve 57 far away by safety valve 59, ball valve 58, pressure meter 56, overflow valve 46 is assemblied on the valve body 63 and constitutes, and valve body 63 is anchored on the upper cover plate of intermediate box 47 by bolt 62, coal-winning machine driver one side.
This routine advantage is that coal-winning machine self provides high-pressure water, has solved high-pressure rubber pipe and has dragged the drawback that spray threat personal safety is leaked in easily impaired, impaired back with coal-winning machine.
Operating principle: when the nozzle in being installed in jet pipe provided water under high pressure, the high-pressure water mist of nozzle ejection was caught the coal dust in the place ahead by the ejection of jet pipe front end, meanwhile, produce negative pressure, suck dust laden air in the jet pipe rear end, water smoke in jet pipe sprays from front end with water smoke after purifying.When jet pipe inside diameter D, nozzle when nozzle exit distance L, nozzle spray angle of flare θ satisfy D≤2Ltg θ/2, be sprayed at and form the water smoke piston in the jet pipe, produce very strong negative pressure.When hydraulic pressure was 15MPa, spray water was about 1: 2500 with the ratio that sucks air capacity (volume), and when promptly injection flow rate was 1OL/min, the suction air capacity was 25m
3/ min is enough to the distinguished and admirable inspiration device of the vortex of cylinder is purified.The hydraulic pressure at nozzle place requires at 5MPa～17MPa.
Processing and type selecting:
1. deduster is mainly rivet welding spare, and shell welds with steel plate, and jet pipe is processed with steel pipe.The wear-resistant ceramic core pattern that nozzle can select for use Wuxi coal machine factory to produce, bore Φ 1.5mm's.
2. the high-pressure hydraulic pump in the tunnel selects for use Wuxi coal machine factory to produce XQB type clarified water pump, flow Q=110L/min, pressure P=20MPa.
3. intermediate box adopts extended type, than former intermediate box lengthening 500mm, the also corresponding lengthening of coal-winning machine bottom bracket.Control overflow valve 46:YK-WYF160/50 type far away, pressure meter 42,56:YN60-II type, ball valve 44,58:QJ10 (G) type, safety valve 59:WJF0101 type, pressure switch 41:HED1 type.Inlet and outlet water sebific duct 27,61,6,60:KJR type high-pressure rubber pipe.
Claims (5)
1. a flitting high pressure water fog dust cleaning device comprises nozzle, high-pressure rubber pipe and high-pressure hydraulic pump, it is characterized in that: deduster is arranged; When coal-winning machine was twin-roll, this device had two dedusters (1,2), is loaded on coal-winning machine fuselage two ends respectively; When coal-winning machine was single cylinder, this device had a deduster, was loaded on the end that the coal-winning machine fuselage has cylinder; Deduster (1,2) comprises shell, jet pipe, and said nozzle; The back of shell is the portion that is fixedly connected (12) that connects with coal-winning machine, and the front portion of shell is the inclined open shape, and its incline direction recedes from top to bottom, and the first half of opening has end plate (7) to intercept, and the Lower Half of opening is opened wide forward, as suction port; Perhaps, the upper and lower half of shell front portion all has end plate (7,36) to intercept, and has horizontal slotted hole (38) on shell bottom plate (37), as suction port; Be fixed with 3～6 jet pipes (15) in the enclosure, each jet pipe passes from end plate (7), and by the gripper shoe (24) between outer casing upper cover plate (8) and the base plate (13,37) separately; One nozzle (25) is arranged in each jet pipe (15), and nozzle (25) is positioned on jet pipe rear portion, the axial line; The inside diameter D of jet pipe, nozzle should meet following relation to the distance L of nozzle exit, the angle of flare θ of nozzle spray: D≤2Ltg θ/2; The direction of axis line of each jet pipe (15) with different angle towards shell the place ahead, and oblique coal mining machine roller end face rear side; Said high-pressure hydraulic pump can also can be airborne pump in gallery.
2. flitting high pressure water fog dust cleaning device according to claim 1 is characterized in that: the direction of axis line of 3～6 jet pipes (15) in the said shell, and inclination angle in vertical direction, alternative scope is between-40 °～50 °; The fog jet that each jet pipe (15) sprays, in the coal mining machine roller end face outside, formation fog jet-core region line (33) subtended angle is 30 °～80 ° a vertical fan-shaped mist barrier, the vortex that blocks the cylinder end face outside is distinguished and admirable, and the point of contact of cylinder and top board is exposed; In the horizontal direction, the axial line of each jet pipe (15) is to the oblique angle that the rib direction tilts, and alternative scope is between 0 °～40 °; The center line (33) of the fog jet that each jet pipe (15) sprays intersects in the place ahead of coal-winning machine front roll and the 1～3m place, rear and the rib of back roll.
3. flitting high pressure water fog dust cleaning device according to claim 2, it is characterized in that: the jet pipe (15) in the said shell is four, the axial line inclination angle in vertical direction of four jet pipes (15) is 30 °, 15 °, 0 ° ,-10 °, the axial line of four jet pipes (15) is respectively 5 °, 10 °, 15 °, 20 ° to the oblique angle of rib in the horizontal direction, above angles shifts scope is ± 10 °, the ordering successively from rib to adopting the sky side.
4. flitting high pressure water fog dust cleaning device according to claim 1, it is characterized in that: the nozzle (25) in the said jet pipe (15), be loaded on the nozzle carrier (22) through the quick high-pressure joint, nozzle carrier (22) is through taking over (16) or directly being connected with water main (21) in the shell, water main's (21) plug end inserts in the locating hole of shell by the side plate (14) of rib one side in the shell, water main's (21) the other end has a disk (9) in the shell, and disk (9) is inlaid in the big locating hole of shell by the side plate (19) of adopting the sky side, and be connected and fixed on side plate (19) by thread connector (10); Water main (21) water inlet end has snap joint seat (29) in the shell, snap joint seat (29) and high-pressure rubber pipe (27) with snap joint be connected; In the enclosure, water main (21) can join with the nozzle on it (25), nozzle carrier (22) and adapter (16) in the shell, installs and removes by big locating hole by space, the integral body at gripper shoe (24) rear.
5. flitting high pressure water fog dust cleaning device according to claim 1 is characterized in that: said high-pressure hydraulic pump is airborne high-pressure pump (48); The output shaft of coal-winning machine motor is through the power shaft driving coupling of clutch/shaft coupling (43) and gearbox (45) and airborne high-pressure pump (48); The spill valve that also comprises pump (46), hydraulic control valve group (49) with this pump (48) auxiliary work; Hydraulic control valve group (49) is loaded on outside, operation driver one side of intermediate box (47), and remainder is loaded in the intermediate box (47); The delivery port of airborne high-pressure pump (51) is connected with nozzle (25) in the deduster through outlet pipe, threeway seat (5), high-pressure rubber pipe (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99246738 CN2396179Y (en) | 1999-10-19 | 1999-10-19 | High-pressure spray duster for drum coal cutting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99246738 CN2396179Y (en) | 1999-10-19 | 1999-10-19 | High-pressure spray duster for drum coal cutting machine |
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| CN2396179Y true CN2396179Y (en) | 2000-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 99246738 Expired - Fee Related CN2396179Y (en) | 1999-10-19 | 1999-10-19 | High-pressure spray duster for drum coal cutting machine |
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| CN101887273A (en) * | 2010-04-20 | 2010-11-17 | 中国矿业大学 | Automatic height-adjusting test device of coal mining machine roller and control method |
| CN101696631B (en) * | 2009-10-31 | 2011-07-20 | 煤炭科学研究总院太原研究院 | Wet type negative pressure dust removing device of continuous coal mining machine |
| CN101490365B (en) * | 2006-08-18 | 2012-04-18 | 布西鲁斯Dbt欧洲有限公司 | A shearer loader for underground mining comprising a spray system |
| CN103147755A (en) * | 2013-03-04 | 2013-06-12 | 中国矿业大学 | Method for determining positions of negative-pressure secondary dust remover nozzle tubes |
| CN103291348A (en) * | 2013-06-07 | 2013-09-11 | 山西晋城无烟煤矿业集团有限责任公司 | Fully mechanized coal mining face dust overrunning automatic dust suppression method |
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