CN202181915U

CN202181915U - Dust collector for mine orifice

Info

Publication number: CN202181915U
Application number: CN2011202740267U
Authority: CN
Inventors: 郝志国; 周慧峰
Original assignee: Zhengzhou GL Tech Co
Current assignee: Zhengzhou GL Tech Co
Priority date: 2011-07-31
Filing date: 2011-07-31
Publication date: 2012-04-04
Anticipated expiration: 2021-07-31

Abstract

The utility model relates to a dust collector for a mine orifice, which comprises a dust collecting box. The front and rear sides of the dust collecting box are correspondingly provided with a drilling rod inlet and a drilling rod outlet for a drilling rod to pass through. The lower part of the dust collecting box is equipped with a slag removal opening. The dust collecting box comprises an upper half box body and a lower half box body mutually buckled together. The upper half box body and the lower half box body are respectively provided with gaps for enclosing the drilling rod inlet and the drilling rod outlet after the upper half box body and the lower half box body are buckled together. According to the utility model, the dust collecting box of the dust collector for a mine orifice adopts a split-type structure formed by mutually buckled upper and lower half box bodies. During installation and usage, the upper half box body and the lower half box body are mutually buckled together in the radial direction of a corresponding drill rod so as to form the dust collecting box. The dust collector provided by the utility model is different from a conventional dust collector, wherein a dust collecting box is sleeved onto a drilling rod through one end of the drilling rod. Therefore, due to the adoption of the dust collector provided by the utility model, the influence on the replacement operation of the drilling rod is greatly reduced and the labor intensity of workers during the replacement of the drilling rod is also lowered. Meanwhile, the problem of the increased labor intensity of workers due to the replacement of the drilling rod of a conventional dust collector adopted for a drilling machine is also solved.

Description

Mine is used the aperture grit arrestor

Technical field

The utility model relates to the coal mining field, and especially a kind of mine that is used for coal mine down-hole drilling is used the aperture grit arrestor.

Background technology

When in the coal seam, holing; Can produce a lot of dust at the hell downwind side when using wind power slag-discharging, during especially soft, that pulverized coal particle is very thin coal bed drilling operation, can produce amounts of dust in the coal seam; Be full of the entire job scene, even in the whole tunnel that can permeate.Not only threaten and influence the workman of field operation, other workmans to operation in same tunnel also cause very big influence simultaneously.

In order to address the above problem; Application number is that 2010106016013.3 Chinese patent discloses a kind of colliery with intensive shallow bore hole grit arrestor; Said colliery comprises disposal box with intensive shallow bore hole grit arrestor, and both sides are provided with corresponding drilling rod import and drilling rod outlet before and after the said disposal box, and both sides are provided with dedusting mouth and slag-drip opening up and down; Said drilling rod exit is provided with sleeve, and said dedusting mouth place is provided with spray nozzle.When said grit arrestor is worked; The front end of sleeve, promptly the end away from said disposal box embeds rib, and drilling rod is successively through beginning to creep into rib after said drilling rod import and the drilling rod outlet; Thereby the dust that produces in the drilling process is imported in the disposal box through said sleeve; Then dust is sprayed, finally discharge, to reach the depositing dust purpose through said slag-drip opening through said spray nozzle.

Certain depositing dust effect has in use been played with intensive shallow bore hole grit arrestor in above-mentioned colliery; But still there are some problems: 1) because the drilling rod afterbody that use in the colliery mostly is triangle; Therefore conventional hermetically-sealed construction can't be set in the drilling rod import department of said disposal box; And the spray effect of described spray nozzle is limited; Therefore can't the dust that produce in the drilling process fully be drenched, in the process of rod boring, still having the part dust " to escape from " described disposal box through said drilling rod import department influences surrounding environment, promptly can't realize the sealing with the drilling rod cooperation place; 2) said slag-drip opening place does not have the dust-break device, and the slag-drip opening place often becomes the outlet that dust is blown out; What 3) said disposal box adopted is overall structure; And drilling rod is generally longer; And in use need often to change, each disposal box that then must will be sheathed on the drilling rod of changing falls along drilling rod axial " taking off ", has also increased its labour intensity when having reduced staff's operating efficiency; 4) owing to be to adopt said spray nozzle depositing dust, the depositing dust medium is a water, and the foreign material such as dregs that therefore produce in after treatment dust (main component is a coal) and the drilling process are mingled in one and can't realize recycling; In addition, down-hole water intaking also comparatively difficulty and water after pollution caused by coal dust, can't realize recycle, this also makes above-mentioned colliery more inconvenient with the use of intensive shallow bore hole grit arrestor.

Summary of the invention

The purpose of the utility model is to provide a kind of and adopts split type mine to use the aperture grit arrestor, when rig need be changed drilling rod, increases the problem of intensity of workers to solve existing grit arrestor.

In order to address the above problem; The mine of the utility model adopts following technical scheme with the aperture grit arrestor: mine is used the aperture grit arrestor; Comprise disposal box, the forward and backward both sides correspondence of said disposal box is provided with drilling rod import, the drilling rod outlet that supplies drilling rod to pass, and its downside is provided with slag-drip opening; Said disposal box comprises the upper case half and the bottom half of mutual fastening, has the breach that is used for after upper and lower half chests body fastens, surrounding said drilling rod import and export on the said upper and lower half chests body separately.

Said drilling rod import department is equipped with first air seal set; Said first air seal set surrounds the first sealing gland mouth that a confession drilling rod passes; First air seal set has and is used for blowing back first fumarole in the disposal box with wafing in the said disposal box to the dust of drilling rod import department; Said each first fumarole is located in making progress in week of the said first sealing gland mouth and has separately and is used for and the inlet end of source of the gas connection and corresponding jet end, and the center line of each first fumarole is all drawn close to the center line of the said first sealing gland mouth from its inlet end separately to jet end gradually.

The jet end of said each first fumarole all has a straight hole section, and the center line of the straight hole section of said each first fumarole is all from the circumferencial direction conjugate deviation of inlet end to jet end along the said first sealing gland mouth of the fumarole at its place.

Described first air seal set comprises first air inlet pipe; Said first air inlet pipe surrounds the passage that supplies drilling rod to pass in said drilling rod import department; First air inlet that first air inlet pipe has first gas channel and is used for said first gas channel is connected with source of the gas; Said each first fumarole is arranged at first air inlet pipe on a side of said drilling rod outlet, and the inlet end of said each first fumarole is through said first gas channel and the first air inlet conducting.

Said first air inlet pipe has first inclined-plane of taper towards a side of the drilling rod outlet of said disposal box; Gradually away from the center line of the said first sealing gland mouth, said first fumarole is arranged on said first inclined-plane from front end to the rear end of said disposal box on said first inclined-plane.

Said air seal set comprises that also sealing is assemblied in the sheath in the said drilling rod import, and said sheath is the tubular of both ends open, and said first air inlet pipe is integrally formed on the inwall of said sheath.

Coaxial line is equipped with fire-retardant cover in the said sheath, and said fire-retardant putting has the fire-retardant passage that supplies drilling rod to pass, and the internal diameter of said fire-retardant passage is less than the internal diameter of the said first sealing gland mouth.

One side of the drilling rod outlet in said first air inlet pipe towards said disposal box in the said sheath is provided with and is used to prevent the air-flow that in said first fumarole, sprays first air baffle ring along the adherent walking of internal face of sheath; Have the resistance dirt passage, the center line of said resistance dirt passage and the central lines of the said first sealing gland mouth that supply drilling rod to pass on said first air baffle ring.

Described sheath comprises first cover and second cover of mutual fastening; The said upper and lower correspondence of partly overlapping is fixed on the said upper and lower half chests body; First puts and is fixed with upper tube half and first plate; Second puts and is fixed with lower tube half and second plate, and said upper and lower semicanal is spliced to form described first air inlet pipe, and said upper and lower half plate is spliced to form said first air baffle ring.

Said slag-drip opening place is equipped with second air seal set; Said second air seal set comprises second air inlet pipe; Said second air inlet pipe is located in making progress in week of slag-drip opening and surrounds the slag passage that falls that a coal supply slag drops; Has second gas channel in second air inlet pipe; Have second air inlet that is used for being connected with source of the gas on its tube wall and be used for dust is upwards blown afloat second fumarole, said second fumarole is arranged at the upside of second air inlet pipe and through said second gas channel and the said second air inlet conducting.

Because the mine of the utility model adopts the split-type structural of upper and lower half box-type that fastens mutually with the disposal box of aperture grit arrestor; Therefore when installing and using; Can be from corresponding drilling rod radially said upper and lower half chests body is buckled into described disposal box; Rather than as existing grit arrestor need will from an end of drilling rod with the control of dust housing-case to drilling rod; This has then reduced changing the influence of drilling rod operation widely, has reduced the labour intensity the when staff changes drilling rod, has solved existing grit arrestor increases intensity of workers when rig need be changed drilling rod problem.

Description of drawings

Fig. 1 is the structural representation of the mine of the utility model with the embodiment 1 of aperture grit arrestor;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the structural representation of first air seal set among Fig. 2;

Fig. 4 is the stereogram of the mine of the utility model with the embodiment 1 of aperture grit arrestor.

The specific embodiment

The mine of the utility model shown in Fig. 1-4, has disposal box 1 with the embodiment 1 of aperture grit arrestor, and the forward and backward side of disposal box 1 is provided with corresponding drilling rod import, drilling rod outlet, and its upper and lower side correspondence is provided with dust mouth, slag-drip opening; The drilling rod import is used to supply corresponding drilling rod to penetrate disposal box 1, and the drilling rod outlet is used to supply drilling rod to pass disposal box 1, in addition; When work; Can connect corresponding sleeve in the drilling rod exit, and sleeve is plugged on the rib, thereby the dust that produces in the rod boring process is caused in the disposal box 1; The dust mouth is used for connecting through dust outlet tube road 4 and corresponding dust collecting, thus with dust (main component is a coal) centralized collection so that later use; Disposal box 1 adopts split-type structural; Specifically; Be upper case half 1-1 and the bottom half 1-2 that disposal box 1 comprises mutual fastening, the dust mouth is arranged on the upper case half 1-1, and slag-drip opening is arranged on the bottom half 1-2; Also has corresponding breach on the upper and lower half chests body; Said breach surrounds said drilling rod import and export after upper and lower half chests body fastens mutually, the front end place of bottom half 1-2 be hinged with can on the check lock lever 5 that turns over, check lock lever 5 is bolted with lock handle 6 away from an end of its hinged end; Has corresponding clip slot 7 on the corresponding end of upper case half 1-1; Turn on the check lock lever 5 that the back embeds in the corresponding clip slot and cooperates with the upper end block of clip slot and with upper and lower half chests body locking, the rear end of upper case half and bottom half is provided with the pin-and-hole of correspondence respectively through the fixed block 30 of correspondence through corresponding lock handle, cooperation is located through the alignment pin 31 that is plugged in the respective pin hole in the rear end of upper and lower half chests body.

The drilling rod import department sealing of disposal box 1 is equipped with first air seal set 8; First air seal set 8 has the sheath 9 that is sealed and matched with disposal box 1; Sheath 9 be both ends open tubular and with the concentricity line setting of drilling rod import; The internal face of sheath is provided with first air inlet pipe 10; First air inlet pipe 10 surrounds an annular, the first sealing gland mouth that the annular distance formation one of the annular that it surrounds is connected with drilling rod import conducting, and first air inlet pipe 10 forms the passage that the corresponding drilling rod of a confession passes jointly with the drilling rod import; First air inlet pipe 10 is integrally formed on the internal face of sheath 9; The correspondence position of sheath 9 internal faces forms the outside wall surface of first air inlet pipe 10, and the cross section vertical with its center line of first air inlet pipe 10 is quadrangle, and its inner tube chamber forms first gas channel; Has first air inlet that is used for being connected on the tube wall of first air inlet pipe 10 with source of the gas; First air inlet is used for first gas channel in first air inlet pipe 10 is connected with corresponding source of the gas, and the periphery that first fumarole, 14, the first fumaroles 14 are located in the first sealing gland mouth that circumferentially is laid with of tube wall upper edge first air inlet pipe 10 of the side that the drilling rod towards disposal box 1 of first air inlet pipe 10 exports makes progress; It has and is used for and inlet end that source of the gas connects and corresponding jet end, and the inlet end of first fumarole is through first air inlet pipe interior first gas channel and the said first air inlet conducting; First fumarole is used for blowing back in the disposal box 1 wafing in the disposal box to the dust of drilling rod import department; Preventing it discharges from drilling rod import department; The tube wall towards a side of the drilling rod of disposal box outlet of first air inlet pipe 10 be one from front side to the rear side of disposal box 1 gradually away from first inclined-plane of the taper of the center line of the said first sealing gland mouth; First fumarole 14 is laid on described first inclined-plane; Made things convenient for processing so widely to first fumarole 14; Reduce its difficulty of processing and cost; The center line of each first fumarole 14 is drawn close to the center line of the said first sealing gland mouth from front side (side of said dorsad drilling rod outlet) to the rear side (towards a side of said drilling rod outlet) of first air inlet pipe gradually, and the angle that the center line of first fumarole is drawn close to the center line of the first sealing gland mouth between the center line of the back and the first sealing gland mouth is advisable with the 20-45 degree; The jet end of each first fumarole 14 all has a straight hole section; The circumferencial direction conjugate deviation of the ring that this straight hole Duan Jun edge first air inlet pipe 10 surrounds; Angle excursion is advisable with the 20-45 degree; Be for the tight described first sealing gland mouth of air bell that makes from said first fumarole 14 ejection like this and form spiral air flow, thereby prevent that better dust from " escaping " to go out from drilling rod import department; Locate to be provided with first air baffle ring 11 in the rear side (a side) of first air inlet pipe 10 in the sheath 9 with first venthole; Blow back break-in to first air baffle ring 11 from the air-flow that blows out in first fumarole 14; Thereby avoided air-flow along the adherent walking of the internal face of sheath 9, improved its hermetic seal (negative-pressure sealing) performance; Also be equipped with fire-retardant cover 12 in the sheath 9; Fire-retardant cover 12 adopts copper material; It has the fire-retardant passage that a confession drilling rod passes; The internal diameter of the endoporus (being the said first sealing gland mouth) of the annular that the internal diameter of fire-retardant passage is surrounded less than first air inlet pipe can avoid first air inlet pipe 10 to contact with drilling rod like this, plays the effect of protection first air inlet pipe 10; Fire-retardant cover 12 is divided into two sections in the both sides, front and back of first air inlet pipe 10, and two sections of fire-retardant cover 12 two pressure rings 13 that are connected in the sheath two ends through flange are respectively pressed to establish and are fixed in the sheath 9, certainly, all have the passage that supplies drilling rod to pass on two pressure rings 13; First air seal set adopts split-type structural equally; Specifically; Be first cover and second cover that sheath 9 comprises mutual fastening, described first puts and is fixed with upper tube half and first plate, and described second puts and be fixed with lower tube half and second plate; Said upper and lower semicanal is spliced to form described first air inlet pipe 10; Said upper and lower half plate is spliced to form said first air baffle ring 11, and said fire-retardant cover 12 and pressure ring 13 all adopt and be divided into the upper and lower two halves formula structure that partly puts simultaneously, and the described disposal box 1 and first air seal set all adopt the split-type structural of mutual fastening; Therefore can the radially both sides of upper and lower half chests body from drilling rod be fastened fast through check lock lever 5, lock handle 6 and the clip slot 7 that correspondence is divided on the upper and lower half chests body in use; The assembling of said first air seal set is shaped, and do not need again with the control of dust housing-case along drilling rod axially put drilling rod, made things convenient for the replacing of drilling rod greatly.

The slag-drip opening place of disposal box 1 is provided with second air seal set; Second air seal set comprises second air inlet pipe 16; Second air inlet pipe 16 is used to prevent that dust from dropping out from slag-drip opening; Second air inlet pipe 16 surrounds an annular; Its hole that surrounds forms the slag passage that falls that a coal supply slag drops; Also having second air inlet, 17, the second air inlets, 17 places that are used for connecting with corresponding source of the gas on the tube wall of second air inlet pipe 16 is provided with and is used to regulate the tap changer 18 of air-flow size and through the air inlet pipe 19 and the first air inlet conducting, has second gas channel in second air inlet pipe 16; The upside of second air inlet pipe 16 (towards a side of the dust mouth of disposal box) is provided with second inclined-plane of corresponding taper and the circumferencial direction of the ring that second air inlet pipe 16 surrounds in upper edge, said second inclined-plane is laid with second fumarole 20; Upwards it had and was used for and inlet end and corresponding jet end that source of the gas connects the week that second fumarole 20 is located in the said slag passage that falls, and respectively the inlet end of second fumarole is through the second air inlet conducting of said second gas channel and second air inlet pipe; Wherein second inclined-plane is the processing of second fumarole 20 for ease; Second fumarole 20 center line from the lower end (end of the dust mouth of disposal box dorsad) to the upper end gradually near the center line of the said slag passage that falls, the center line of each second fumarole near the center line of the said slag passage that falls after with the center line of the slag passage that falls between the angle that forms be advisable with the 20-45 degree, the jet end of second fumarole all have a straight hole section and each second fumarole the circumferencial direction conjugate deviation of the annular that surrounds of center line edge second air inlet pipe 16; Angle excursion is advisable with the 20-45 degree; So also be to be covered with the slag-drip opening of disposal box and to form spiral air flow, thereby form reliable hermetic seal, prevent that dust from dropping out from the slag-drip opening of disposal box 1 in order to make from the air-flow of filtering ejection in second fumarole 20; The top of second air inlet pipe is provided with second air baffle ring, 21, the second air baffle rings 21 and is used for making from the air-flow break-in of said filter dirt second fumarole 20 interior ejections with filter dirt pipe jointing, prevents the adherent walking of its internal face along disposal box.

Said mine in use can be with the upper and lower half chests body of the disposal box radially fastening from drilling rod with the aperture grit arrestor; Turn over then said check lock lever make its embed behind corresponding clip slot the described lock handle of turn make it with the corresponding end jam-packed of clip slot can be with upper and lower half chests body quick lock in; Thereby drilling rod is contained; Sleeve through correspondence is sealed and matched the drilling rod outlet of disposal box with rib, thereby the dust that drilling rod is produced in the process of creeping into gets into disposal box, gets into the dust of disposal box because the effect of said first air seal set and second air seal set can't be from the drilling rod import and slag-drip opening discharge of disposal box; Therefore can only discharge disposal box from said dust mouth; Therefore only need to enter corresponding dust collecting so that follow-up use when needing to change drilling rod, only need be unclamped said lock handle through said dust outlet tube road; Under turn over said check lock lever can realize for convenience detach, easy accessibility.

Because the mine of the utility model is equipped with said first air seal set with the aperture grit arrestor in the drilling rod import department sealing of said disposal box; Said first air seal set surrounds the first sealing gland mouth that a confession drilling rod passes; First air seal set has and is used for blowing back first fumarole in the disposal box with wafing in the said disposal box to the dust of drilling rod import department; Corresponding drilling rod is passed, in the common passage that forms of said air seal set and drilling rod import in the process of rod boring, when the dust of generation wafts to said drilling rod import department; Can it be blown through the air-flow of said first fumarole ejection and be back to disposal box; Prevent dust from the drilling rod import department of disposal box to external diffusion owing to be to lean on air seal, therefore first air seal set does not need to contact with drilling rod; Applicable to the cross section is leg-of-mutton drilling rod, has solved the problem that the drilling rod import department of existing grit arrestor is difficult to seal.

In the foregoing description, described first air seal set can also adopt the one group of shower nozzle that is laid in said drilling rod import department; The ring that said first air inlet pipe surrounds can also be Fang Huan; The described disposal box and first air seal set can also adopt monolithic construction separately; Described check lock lever, clip slot and corresponding lock handle can also adopt screw rod or hook, certainly, corresponding screw rod bearing structure (like screwed hole, swivel nut) must be set on upper and lower half chests body in such cases or link up with bearing structure (like otic placode); The sheath of said first air seal set, first air baffle ring and fire-retardant cover all can omit; Existing dedusting mouth also can be adopted in described dust mouth, and promptly the upside at disposal box is provided with spray nozzle to reach the depositing dust purpose.

Claims

1. mine is used the aperture grit arrestor; Comprise disposal box; The forward and backward both sides correspondence of said disposal box is provided with drilling rod import, the drilling rod outlet that supplies drilling rod to pass; Its downside is provided with slag-drip opening, it is characterized in that: said disposal box comprises the upper case half and the bottom half of mutual fastening, has the breach that is used for after upper and lower half chests body fastens, surrounding said drilling rod import and export on the said upper and lower half chests body separately.

2. mine according to claim 1 is used the aperture grit arrestor; It is characterized in that: said drilling rod import department is equipped with first air seal set; Said first air seal set surrounds the first sealing gland mouth that a confession drilling rod passes; First air seal set has and is used for blowing back first fumarole in the disposal box with wafing in the said disposal box to the dust of drilling rod import department; Said each first fumarole is located in making progress in week of the said first sealing gland mouth and has separately and is used for and the inlet end of source of the gas connection and corresponding jet end, and the center line of each first fumarole is all drawn close to the center line of the said first sealing gland mouth from its inlet end separately to jet end gradually.

3. mine according to claim 2 is used the aperture grit arrestor; It is characterized in that: the jet end of said each first fumarole all has a straight hole section, and the center line of the straight hole section of said each first fumarole is all from the circumferencial direction conjugate deviation of inlet end to jet end along the said first sealing gland mouth of the fumarole at its place.

4. mine according to claim 3 is used the aperture grit arrestor; It is characterized in that: described first air seal set comprises first air inlet pipe; Said first air inlet pipe surrounds the passage that supplies drilling rod to pass in said drilling rod import department; First air inlet that first air inlet pipe has first gas channel and is used for said first gas channel is connected with source of the gas; Said each first fumarole is arranged at first air inlet pipe on a side of said drilling rod outlet, and the inlet end of said each first fumarole is through said first gas channel and the first air inlet conducting.

5. mine according to claim 4 is used the aperture grit arrestor; It is characterized in that: said first air inlet pipe has first inclined-plane of taper towards a side of the drilling rod outlet of said disposal box; Gradually away from the center line of the said first sealing gland mouth, said first fumarole is arranged on said first inclined-plane from front end to the rear end of said disposal box on said first inclined-plane.

6. mine according to claim 5 is used the aperture grit arrestor; It is characterized in that: said air seal set comprises that also sealing is assemblied in the sheath in the said drilling rod import; Said sheath is the tubular of both ends open, and said first air inlet pipe is integrally formed on the inwall of said sheath.

7. mine according to claim 6 is used the aperture grit arrestor; It is characterized in that: coaxial line is equipped with fire-retardant cover in the said sheath; Said fire-retardant putting has the fire-retardant passage that supplies drilling rod to pass, and the internal diameter of said fire-retardant passage is less than the internal diameter of the said first sealing gland mouth.

8. mine according to claim 7 is used the aperture grit arrestor; It is characterized in that: a side of the drilling rod outlet in said first air inlet pipe towards said disposal box in the said sheath is provided with and is used to prevent the air-flow that in said first fumarole, sprays first air baffle ring along the adherent walking of internal face of sheath; Have the resistance dirt passage, the center line of said resistance dirt passage and the central lines of the said first sealing gland mouth that supply drilling rod to pass on said first air baffle ring.

9. mine according to claim 8 is used the aperture grit arrestor; It is characterized in that: described sheath comprises first cover and second cover of mutual fastening; The said upper and lower correspondence of partly overlapping is fixed on the said upper and lower half chests body, and first puts and is fixed with upper tube half and first plate, and second puts and is fixed with lower tube half and second plate; Said upper and lower semicanal is spliced to form described first air inlet pipe, and said upper and lower half plate is spliced to form said first air baffle ring.

10. use the aperture grit arrestor according to each described mine of claim 1-9; It is characterized in that: said slag-drip opening place is equipped with second air seal set; Said second air seal set comprises second air inlet pipe; Said second air inlet pipe is located in making progress in week of slag-drip opening and surrounds the slag passage that falls that a coal supply slag drops; Have second gas channel in second air inlet pipe, have second air inlet that is used for being connected with source of the gas on its tube wall and be used for dust is upwards blown afloat second fumarole, said second fumarole is arranged at the upside of second air inlet pipe and through said second gas channel and the said second air inlet conducting.